WO2024218810A1 - Flavor-generating article and smoking system - Google Patents

Abstract

This flavor-generating article comprises: a flavor source; a container that accommodates the flavor source and has an air inlet and an air outlet; and a nozzle that communicates with the air outlet of the container. The inner diameter of the nozzle is smaller than the inner diameter of the container.

Description

Flavor generating article and smoking system

The present invention relates to a flavor generating article and a smoking system.

Conventionally, flavor inhalers for inhaling flavors and the like without burning the material are known. For example, a smoking material heating device that forms an aerosol by heating smoking material made of tobacco containing volatile components is known as such a flavor inhaler (see Patent Document 1). In the aerosol generation system described in Patent Document 1, an aerosol-forming substrate and a susceptor are housed in a capsule, and the susceptor is inductively heated by an induction coil arranged around the side of the capsule.

International Publication No. 2017/068095

The object of the present invention is to provide a flavor generating product with a new structure.

According to a first aspect, a flavor generating article is provided. The flavor generating article includes a flavor source, a container that contains the flavor source, and a filling member that is located at least one of upstream and downstream of the flavor source and is provided in an air flow path within the container.

In this case, the vapor or aerosol generated in the flavor source can be prevented from moving upstream or downstream by the filling member provided in the air flow path. As a result, when the flavor source is heated while the user is not smoking, the vapor or aerosol generated in the flavor source can be prevented from leaking upstream or downstream. Furthermore, if a filling member is provided in the flavor inhaler, there is a risk that the vapor or aerosol will aggregate or condense in the flavor inhaler. According to the first aspect, since a filling member is provided in the flavor generating article, aggregation or condensation can be prevented from occurring in the flavor inhaler.

The filling member may include a granular filling member.

In this case, the granular filling member prevents the vapor or aerosol generated in the flavor source from leaking upstream or downstream when the flavor source is heated while the user is not smoking, while allowing the gaps in the granular filling member to function as air flow paths when the user is smoking. In addition, by including a granular filling member in the filling member, the surface area of the filling member can be increased, allowing the vapor or aerosol in contact with the granular filling member to be efficiently cooled.

The granular filling member may include at least one selected from the group consisting of calcium carbonate, cellulose, tobacco granules, glycerin, propylene glycol, and flavor additives.

If the granular filling material contains, for example, tobacco granules or flavor additives, it is possible to impart flavors and the like to the vapor or aerosol. Furthermore, if the granular filling material contains glycerin or propylene glycol, it is possible to increase the amount of aerosol. If the granular filling material contains calcium carbonate or cellulose, these have relatively low specific heats, so the temperature rises easily, and thus the amount of aerosol can be increased.

The granular filling member and the flavor source may include the tobacco granules.

In this case, a common material can be used for both the flavor source and the granular filling member, allowing efficient production of the flavor-generating product.

The granular filling member may be located downstream of the flavor source. The container may have an air inlet located upstream of the flavor source, an air outlet located downstream of the granular filling member, and an air vent communicating with the granular filling member.

In this case, air can be supplied to the granular filling member located downstream of the flavor source through the ventilation hole, so that the vapor or aerosol generated in the flavor source can be efficiently cooled by the air from the ventilation hole.

The granular filling member may include an upstream granular filling member located upstream of the flavor source, and a downstream granular filling member located downstream of the flavor source.

In this case, the vapor or aerosol generated in the flavor source can be prevented from moving both upstream and downstream by the filling member provided in the air flow path. As a result, when the flavor source is heated while the user is not smoking, the vapor or aerosol generated in the flavor source can be prevented from leaking both upstream and downstream.

The upstream granular filler member may include a different material than the downstream granular filler member.

In this case, for example, a material that imparts flavor, etc., can be used in the downstream granular filling member through which the vapor or aerosol passes, and the upstream granular filling member can be made of a different material, allowing for greater freedom in the design of the flavor-generating product.

The average particle size of the granular filling material may be 0.1 mm or more and 3 mm or less.

If the average particle size of the granular filling material is less than 0.1 mm, the particle size is too small, the gaps in the granular filling material are small, and there is a risk that the airflow resistance will be too high. In this case, the granular filling material will be more likely to spill out of gaps in the container of the flavor-generating product. On the other hand, if the average particle size of the granular filling material is more than 3 mm, the particle size is too large, the gaps in the granular filling material are large, and steam or aerosol will be more likely to leak through the gaps in the granular filling material. Therefore, if the above average particle size is 0.1 mm or more and 3 mm or less, it is possible to suppress the leakage of steam or aerosol through the gaps in the granular filling material while suppressing an increase in airflow resistance or the granular filling material spilling out of the container.

The flavor-generating article may have a breathable partition member between the granular filling member and the flavor source.

In this case, mixing of the granular filling material and the flavor source inside the container can be prevented.

The flavor generating article may have a susceptor disposed within the flavor source.

In this case, the flavor source can be heated by inductively heating the susceptor of the flavor generating article using an induction coil provided in the flavor inhaler.

According to a second aspect, a smoking system is provided. The smoking system includes the flavor-generating article and a flavor inhaler having a heating source for heating the flavor-generating article.

In this case, the vapor or aerosol generated in the flavor source can be prevented from moving upstream or downstream by the filling member provided in the air flow path. As a result, a smoking system can be provided that can prevent the vapor or aerosol generated in the flavor source from leaking upstream or downstream when the flavor source is heated while the user is not smoking.

The flavor inhaler may have a chamber that houses the flavor generating article. The heating source may be configured to be inserted into the container of the flavor generating article when the flavor generating article is housed in the chamber. When the flavor generating article is housed in the chamber, the airflow resistance downstream of the flavor source may be R1, and the airflow resistance upstream of the flavor source may be R2, where R1>R2.

In this case, when the flavor source is heated while the user is not smoking, the vapor or aerosol generated in the flavor source can be prevented from moving downstream. Generally, the flow path of the flavor inhaler is relatively long upstream of the flavor source, so that the vapor or aerosol is less likely to leak from the flavor inhaler. Therefore, by making the airflow resistance downstream of the flavor source higher than the upstream, the vapor or aerosol can be further prevented from leaking from the flavor inhaler. In this specification, the airflow resistances R1 and R2 are the airflow resistances in the smoking system when the flavor-generating article is housed in the chamber.

The flavor inhaler may have a chamber that contains the flavor-generating article. When the flavor-generating article is contained in the chamber, the air flow resistance downstream of the susceptor may be R3, and the air flow resistance upstream of the susceptor may be R4, and R3 may be greater than R4.

In this case, when the flavor source is heated while the user is not smoking, the vapor or aerosol generated in the flavor source can be prevented from moving downstream. Generally, the flow path of the flavor inhaler is relatively long upstream of the susceptor, so that the vapor or aerosol is less likely to leak from the flavor inhaler. Therefore, by making the airflow resistance downstream of the susceptor higher than the upstream, the vapor or aerosol can be further prevented from leaking from the flavor inhaler. In this specification, the airflow resistances R3 and R4 are the airflow resistances in the smoking system when the flavor-generating article is housed in the chamber.

The flavor inhaler may have an air flow path that communicates with the air inlet of the container of the flavor generating article. The air flow path may pass through the outside of the side wall of the container and communicate with the air inlet.

In this case, an air layer (air flow path) is formed on the outside of the side wall of the container, which can prevent heat from the container from being transferred to the outside of the flavor inhaler.

According to a third aspect, a flavor generating article is provided. The flavor generating article includes a flavor source, a container that contains the flavor source, and a flow path bending portion that is disposed downstream of the flavor source and configured to bend an air flow path that passes through the container.

In this case, the air flow path downstream of the container can be made longer than when there is no curved flow path. This makes it possible to prevent the vapor or aerosol that has passed through the container from leaking outside the container, and to promote the cooling of the vapor or aerosol. Generally, the flow path of the flavor inhaler is relatively long upstream of the flavor source, so that the vapor or aerosol is less likely to leak from the flavor inhaler. Therefore, by arranging the curved flow path downstream of the flavor source, it is possible to efficiently prevent the vapor or aerosol from leaking from the flavor inhaler. In addition, when the curved flow path is arranged inside the container, the vapor or aerosol is cooled and coagulates or condenses at the curved flow path, so that it is possible to prevent the vapor or aerosol from coagulating or condensing outside the container (for example, inside the flavor inhaler).

The flow path curved portion may include one or more selected from the group consisting of a helical flow path body, a spiral flow path body, and a gas-impermeable plate-like member.

In this case, the air flow path can be curved in a spiral, vortex, or random manner by the flow path curvature.

The spiral flow passage body may have an upper member, a lower member, and a spiral member located between them. Air flowing in from the lower member may move along the spiral member and flow out from the upper member.

In this case, a spiral air flow path can be formed by the upper member, the lower member, and the spiral member.

The lower member may have a gas-permeable member and a gas-impermeable member provided on the surface of the gas-permeable member.

In this case, steam or aerosol can flow in from the part of the gas-permeable member where no gas-impermeable member is provided, move in a spiral shape along the spiral member, and flow out from the upper member.

The gas impermeable member may be disposed on at least one surface of the gas permeable member so as not to overlap the outer edge of the gas permeable member.

In this case, vapor or aerosol can flow in from the outer edge of the gas-permeable member, move in a spiral shape along the spiral member, and flow out from the upper member.

The center of the gas impermeable member and the center of the gas permeable member may substantially coincide.

In this case, steam or aerosols can be prevented from flowing in from the center of the gas-permeable member. Furthermore, if the gas-impermeable member is positioned so as not to overlap with the outer edge of the gas-permeable member, steam or aerosols can flow in from the outer edge of the gas-permeable member, move in a spiral shape along the spiral member, and flow out from the upper member.

The spiral member may be formed integrally with the upper member or the lower member.

In this case, the formation of gaps between the spiral member and the upper or lower member is suppressed, so that leakage of steam or aerosol from the gaps between the spiral member and the upper or lower member can be suppressed. In addition, a spiral flow passage body can be easily formed simply by attaching a separate upper or lower member to the spiral member.

The spiral flow passage body may be positioned to close the opening of the container.

In this case, the upper member can function as a lid for the container. Therefore, by providing the container with a spiral flow path, it is possible to prevent the flavor source from spilling out of the container.

The spiral flow passage body may have a spiral flow passage defined by the upper member, the lower member, and the spiral member. The spiral flow passage may have an air inlet and an air outlet. The spiral flow passage body may have an air vent that communicates with the spiral flow passage between the air inlet and the air outlet.

In this case, air can be supplied through the vent, so that the vapor or aerosol passing through the spiral flow passage can be efficiently cooled by the air from the vent.

The spiral flow passage body may have at least one spiral flow passage having an air inlet and an air outlet. The spiral flow passage may extend in the longitudinal direction of the flavor-generating article. The air inlet and the air outlet may be positioned so as not to overlap when viewed in the longitudinal direction of the flavor-generating article.

The plate-like member may be arranged to extend in a direction intersecting the longitudinal direction of the flavor-generating product.

In this case, the vapor or aerosol from the flavor source moving along the longitudinal direction can be made to collide with the plate-shaped member and move in a direction intersecting the longitudinal direction.

The container may have a wall that defines an interior space. The flow path curved portion may include a groove or a rough surface formed on the inner surface of the wall.

In this case, the flow path of the vapor or aerosol passing through the container can be curved without providing a flow path curved section separate from the container.

The flow path curved portion may be disposed outside the container.

In this case, the flavor source in the container can be prevented from entering the curved portion of the flow path.

According to a fourth aspect, a flavor generating article is provided. The flavor generating article includes a flavor source, a container that contains the flavor source, and a check valve that is located downstream of the flavor source and is configured to allow gas to move from the flavor source to the outside of the container.

In this case, the check valve can prevent the vapor or aerosol generated in the flavor source from moving downstream. As a result, when the flavor source is heated while the user is not smoking, the vapor or aerosol generated in the flavor source can be prevented from leaking downstream. Generally, the flow path of the flavor inhaler is relatively long upstream of the flavor source, so that the vapor or aerosol is less likely to leak from the flavor inhaler. Therefore, by locating the check valve downstream of the flavor source, the vapor or aerosol can be efficiently prevented from leaking from the flavor inhaler.

The check valve may include a ball type check valve or a flap type check valve.

In this case, the ball or flap can prevent downstream leakage of vapor or aerosol.

The check valve may include a flap-type check valve. The flap-type check valve may have a base having an opening or a notch, and a flap portion provided on the downstream side of the base so as to cover the opening or the notch.

In this case, the flap portion covers the opening or notch, thereby preventing downstream leakage of steam or aerosol.

Each of the ends of the flap portion may be fixed to the first and second portions of the base. The length between the ends of the flap portion may be longer than the distance between the first and second portions of the base.

In this case, the flap portion is fixed to the base so that it can flex or bend, so that a part of the flap portion separates from the base, allowing the user to inhale the vapor or aerosol through the gap between the flap portion and the base.

The flap portion may include a first flap member and a second flap member. One end of each of the first flap member and the second flap member may be fixed to the base. The other end of each of the first flap member and the second flap member may be fixed to each other.

In this case, the first flap member and the second flap member can be overlapped and fixed. The weight of this overlapping portion allows the flap portion to open and close smoothly (it does not open easily). Therefore, by using the first flap member and the second flap member, it is possible to easily form a flap portion that has such smooth opening and closing movement.

The length of the first flap member and the length of the second flap member may be substantially equal.

In this case, the distance from each end of the flap portion to the overlapping portion between the first flap member and the second flap member is equal, making it more desirable to open and close the flap, and more specifically, making it easier to adjust the function of suppressing the vapor or aerosol pressure.

The first flap member and the second flap member may be fixed to overlap each other at the other end. The ratio of the length of the overlapping portion of the first flap member and the second flap member to the length between the one end and the other end of the first flap member or the second flap member may be greater than or equal to 0 and less than or equal to 0.4.

In this case, the weight of the central portion of the flap portion can be increased by overlapping the first and second flap members while maintaining the flexibility of the entire flap portion, making it more convenient to open and close the flap portion. Specifically, when the flap portion opens, it can operate smoothly while suppressing the pressure of the steam or aerosol.

According to a fifth aspect, a smoking system is provided. The smoking system includes the flavor generating article and a flavor inhaler. The flavor generating article has an air inlet and an air outlet. The flavor inhaler has an air intake port communicating with the air inlet and an air outlet port communicating with the air outlet. The airflow resistance downstream of the flavor source is greater than the airflow resistance upstream of the flavor source.

In this case, when the flavor source is heated while the user is not smoking, the vapor or aerosol generated in the flavor source can be prevented from moving downstream.

According to a sixth aspect, a flavor generating article is provided. The flavor generating article includes a flavor source, a container that contains the flavor source and has an air inlet and an air outlet, and a nozzle that communicates with the air outlet of the container. The inner diameter of the nozzle is smaller than the inner diameter of the container.

In this case, the flow rate of the vapor or aerosol from the flavor generating article can be increased when the user smokes, compared to when the flavor generating article does not have a nozzle. This makes it possible to prevent the vapor or aerosol flowing out from the flavor generating article from colliding with the flow path wall of the flavor inhaler and coagulating or condensing.

The length of the nozzle may be between 3mm and 10mm.

If the length of the nozzle is less than 3 mm, the nozzle may be too short and the vapor or aerosol flowing out of the nozzle may diffuse, making it difficult to effectively prevent collision with the flow path wall of the flavor inhaler. If the length of the nozzle is more than 10 mm, the size of the flavor inhaler may become too large to accommodate a flavor-generating article having a nozzle. Therefore, if the length of the nozzle is within the above range, it is possible to prevent the size of the flavor inhaler from becoming too large while preventing the diffusion of the vapor or aerosol.

The flavor-generating article may have a vent that communicates with the interior of the container.

In this case, air can be supplied through the vent, so that the vapor or aerosol generated in the flavor source can be efficiently cooled by the air from the vent.

The diameter of the air outlet of the container and the inner diameter of the nozzle may be substantially equal.

In this case, there is essentially no difference between the diameter of the air outlet and the inner diameter of the nozzle, so pressure loss at the boundary between the air outlet and the nozzle can be suppressed.

The flavor generating article may have a mesh or filter covering the air outlet of the container.

In this case, the flavor source can be prevented from being ejected from the nozzle.

The container may have a plurality of the air outlets. All of the plurality of air outlets may be in communication with the nozzle.

In this case, the vapor or aerosol generated by the flavor source can come into contact with the wall of the container that defines the multiple air outlets, thereby improving the efficiency of cooling the vapor or aerosol.

According to a seventh aspect, a smoking system is provided. The smoking system includes a flavor inhaler having the flavor generating article, a chamber for accommodating the flavor generating article, and a mouthpiece.

In this case, the flow rate of the vapor or aerosol from the flavor generating article can be increased when the user smokes, and the vapor or aerosol can be delivered through the mouthpiece.

The ratio of the length of the nozzle to the distance from the tip of the nozzle to the opening of the mouthpiece of the flavor inhaler may be between 10:0 and 3:7.

If the length of the nozzle is relatively shorter than the above ratio range, the vapor or aerosol flowing out of the nozzle will diffuse, and it may not be possible to effectively prevent it from colliding with the wall of the flow path of the flavor inhaler. Therefore, when the above ratio is within the above range, the diffusion of the vapor or aerosol can be prevented. Note that when the above ratio is 10:0, this means that the distance from the tip of the nozzle to the opening of the mouthpiece of the flavor inhaler is 0.

The flavor inhaler may have an air supply port that is radially adjacent to the nozzle and supplies air to the gap between the mouthpiece and the nozzle.

The vapor or aerosol flowing out from the nozzle may diffuse and enter the gap between the mouthpiece and the nozzle, forming a vortex flow that may cause coagulation or condensation in the mouthpiece or nozzle. If the flavor inhaler has the air supply port, air can be supplied to the gap, preventing the vapor or aerosol flowing out from the nozzle from entering the gap.

A groove that defines at least a portion of the air supply port may be formed on at least one of the surface of the mouthpiece facing the container and the surface of the container facing the mouthpiece.

In this case, an air supply port can be provided upstream of the gap between the mouthpiece and the nozzle, adjacent to the nozzle in the radial direction, so that the vapor or aerosol flowing out from the nozzle can be efficiently prevented from entering the gap.

The container may have a guide portion extending in the extension direction of the nozzle and positioned between the mouthpiece and the nozzle.

In this case, the guide portion makes it easy to position the flavor generating item relative to the mouthpiece.

The guide portion may be configured to guide the air supplied from the air supply port toward the opening of the mouthpiece.

In this case, it is possible to prevent vapor or aerosol from remaining in the gap between the mouthpiece and the nozzle, which is adjacent to the nozzle in the radial direction.

The nozzle may include a portion whose outer diameter increases from the nozzle opening toward the air outlet of the container.

In this case, a tapered surface is formed on the outer circumferential surface of the nozzle, with the outer diameter decreasing toward the nozzle opening. Therefore, the nozzle itself can function as the guide portion.

The flavor inhaler may have an air flow path that communicates with the air inlet of the container of the flavor-generating article. The air flow path may pass through the outside of the side wall of the container and communicate with the air inlet.

In this case, an air layer (air flow path) is formed on the outside of the side wall of the container, which can prevent heat from the container from being transferred to the outside of the flavor inhaler.

According to an eighth aspect, a flavor generating article is provided. The flavor generating article has a flavor source and a container that contains the flavor source. The container has a first cylindrical body having a first bottom wall and a first side wall, and a second cylindrical body having a second bottom wall and a second side wall. The first cylindrical body is inserted into the second cylindrical body so that the first side wall abuts against the second bottom wall.

In this case, an air layer can be easily created between the first side wall and the second side wall, which can prevent heat from the container from being transferred to the outside of the flavor-generating product.

An air flow path may be formed between the first side wall and the second side wall.

In this case, an air layer (air flow path) is formed outside the first side wall of the container, which can prevent heat from the container from being transferred to the outside of the flavor-generating product.

The first side wall may have an opening or a notch that connects the air flow path to the inside of the first cylindrical body.

In this case, air that has passed through the air flow path can be supplied into the container through the opening or notch.

The flavor-generating article may have a heat source disposed within the container. The opening or notch may be located upstream of the heat source.

In this case, the air flowing into the container through the opening or notch passes through the heat source, allowing the vapor or aerosol generated near the heat source to be delivered efficiently.

The flavor-generating article may have a heat source disposed within the container. The opening or notch may be located downstream of the heat source.

In this case, air can be supplied through the opening or notch, so that the vapor or aerosol generated in the flavor source can be efficiently cooled by the air from the opening or notch.

The flavor-generating article may have a heating source disposed within the container. The first side wall may have the opening or notch upstream and downstream of the heating source. The upstream opening or notch may be larger than the downstream opening or notch.

In this case, leakage of steam or aerosol from the downstream opening or notch can be suppressed. Also, the amount of air supplied to the flavor source from the upstream opening or notch can be increased.

The flavor-generating article may have a heating source disposed within the container. The first side wall may have the opening or notch upstream and downstream of the heating source. The upstream opening or notch may be smaller than the downstream opening or notch.

In this case, the amount of air supplied from the downstream opening or notch can be increased to further promote cooling of the vapor or aerosol.

The second side wall may have at least one rib on its inner surface, the rib abutting the outer surface of the first side wall.

In this case, the rib can form a gap of a certain width between the first side wall and the second side wall.

The first bottom wall may have a ventilation hole.

In this case, the vent can function as an air inlet or an air outlet for the container.

The second bottom wall may be configured to be air impermeable.

As a result, when the first bottom wall has the above-mentioned air vent, the first side wall has the above-mentioned opening or notch, and an air flow path is formed between the first side wall and the second side wall, air that has flowed into the container through the above-mentioned air flow path and the above-mentioned opening or notch can flow out of the container through the above-mentioned air vent. In other words, the flavor-generating product can have a so-called counterflow type flow path.

The second bottom wall may have a ventilation hole.

In this case, the vent can function as an air inlet or an air outlet for the container.

The container may have non-tobacco particles upstream of the flavor source.

In this case, the non-tobacco particles prevent the vapor or aerosol generated in the flavor source from leaking upstream when the flavor source is heated while the user is not smoking, while allowing the gaps between the non-tobacco particles to function as air flow paths when the user is smoking.

The container may have a chamber for inserting a heating source that is isolated from the space that contains the flavor source.

In this case, the heat source can be inserted into the heat source insertion chamber to heat the flavor source without destroying the flavor source container. In addition, since the heat source does not come into direct contact with the flavor source, contamination of the heat source by the flavor source can be suppressed.

The flavor generating article may have a susceptor housed in the container.

In this case, the flavor source can be heated by inductively heating the susceptor of the flavor generating article using an induction coil provided in the flavor inhaler.

According to a ninth aspect, a method for manufacturing a flavor-generating article is provided. This method for manufacturing a flavor-generating article includes arranging a flavor source inside a first cylindrical body, and inserting the first cylindrical body into the second cylindrical body so that a first side wall of the first cylindrical body in which the flavor source is arranged abuts against a second bottom wall of the second cylindrical body.

In this case, a flavor-generating article having an air layer between the first side wall and the second side wall can be easily manufactured.

1 is a schematic cross-sectional side view of a flavor generating article according to an embodiment of the present invention. FIG. 1 is a schematic side cross-sectional view of the smoking system according to the present embodiment. 2 is a schematic cross-sectional side view of a flavor generating article according to another embodiment. 2 is a schematic cross-sectional side view of a flavor generating article according to another embodiment. 2 is a schematic cross-sectional side view of a flavor generating article according to another embodiment. FIG. 11 is a schematic exploded perspective view of a spiral flow path body, which is another example of a flow path curved portion. 13 is a schematic exploded perspective view of another example of the spiral flow path body 32. FIG. FIG. 11 is a schematic exploded perspective view of a spiral flow path body, which is another example of a flow path curved portion. 2 is a schematic cross-sectional side view of a flavor generating article according to another embodiment. 13 is a plan view showing another example of a check valve used in a flavor generating article. FIG. 2 is a schematic cross-sectional side view of a flavor generating article according to another embodiment. 2 is a schematic cross-sectional side view of a flavor generating article according to another embodiment. 2 is a schematic cross-sectional side view of a flavor generating article according to another embodiment.

Below, an embodiment of the present invention will be described with reference to the drawings. In the drawings described below, identical or corresponding components will be given the same reference numerals and duplicated explanations will be omitted. In this specification, the "longitudinal direction" refers to the direction in which air passes through the flavor source of the flavor-generating product or the long axis direction of the flavor-generating product. In addition, in this specification, the "short direction" or "width direction" refers to the direction perpendicular to the longitudinal direction.

1 is a schematic side cross-sectional view of a flavor generating article according to this embodiment. FIG. 2 is a schematic side cross-sectional view of a smoking system according to this embodiment. As shown in FIG. 2, the smoking system 200 has a flavor generating article 10 and a flavor inhaler 100. The flavor inhaler 100 is configured to generate vapor or aerosol containing a flavor by heating a flavor source 20 contained in a container 12. The flavor inhaler 100 has a heating source 110 that heats the flavor generating article 10. In the example shown in FIG. 2, the flavor inhaler 100 has an induction coil as the heating source 110. Not limited to this, the flavor inhaler 100 may have, as the heating source 110, a heating body that can be inserted into the flavor generating article 10, or a heating body that heats the flavor generating article 10 from the outside. The heating source 110 is configured to heat the flavor generating article 10 to, for example, 200° C. or higher and 350° C. or lower.

After using the flavor generating article 10, it can be removed from the flavor inhaler 100 and discarded. Then, a new flavor generating article 10 can be used in the flavor inhaler 100. In other words, the flavor generating article 10 is a cartridge used in the flavor inhaler 100.

As shown in FIG. 2, the flavor inhaler 100 has a chamber 120 that houses the flavor generating article 10, and a mouthpiece 130. The flavor inhaler 100 may further have a housing 101, a battery 102, and a control unit 103. The housing 101 houses the battery 102, the control unit 103, and the heating source 110 therein. The housing 101 may be divisible into two or more parts.

The battery 102 is configured to supply power to the heating source 110 and the control unit 103, etc. For example, the battery 102 is a rechargeable battery or a non-rechargeable battery, such as a lithium ion battery. The battery 102 may be rechargeable by an external power source. The battery 102 is electrically connected to the heating source 110 via the control unit 103. This allows the battery 102 to supply power to the heating source 110 so as to appropriately heat the flavor source 20 contained in the flavor generating article 10.

The control unit 103 is composed of a CPU, a memory, etc., and controls the operation of the flavor inhaler 100. Specifically, the control unit 103 can control the supply of power from the battery 102 to the heating source 110. For example, the control unit 103 starts heating the flavor generating article 10 in response to a user operation on an input device such as a push button or a slide switch (not shown), and ends heating the flavor generating article 10 after a certain period of time has elapsed. If the number of puffing actions by the user exceeds a certain value, the control unit 103 may end heating the flavor generating article 10 even before a certain period of time has elapsed since the start of heating the flavor generating article 10. For example, the puffing action is detected by a sensor (not shown).

Alternatively, the control unit 103 may start heating the flavor generating article 10 in response to the start of the puffing action, and end heating the flavor generating article 10 in response to the end of the puffing action. The control unit 103 may end heating the flavor generating article 10 even before the end of the puffing action, if a certain time has passed since the start of the puffing action. If the heating source 110 is an induction coil, the flavor inhaler 100 may have an electromagnetic shield that prevents electromagnetic waves generated by the induction coil from reaching the control unit 103.

When the heating source 110 is an induction coil, the induction coil may be arranged to surround the periphery of the flavor-generating article 10 as shown in FIG. 2. An insulating material (not shown) may be arranged between the induction coil and the flavor-generating article 10. In other words, the flavor inhaler may have an insulating material arranged to surround the periphery of the flavor-generating article 10. The insulating material may be, for example, a vacuum insulating material, an aerogel insulating material, or an air insulating material.

The housing 101 has a chamber 120 for accommodating the flavor generating article 10 at the mouthpiece end (mouthpiece 130 side). As shown, the mouthpiece 130 is connected to one end of the housing 101 so as to close the chamber 120 of the housing 101. The mouthpiece 130 has an air flow path 130a that communicates between the outside of the mouthpiece 130 and the chamber 120 of the housing 101. More specifically, the air flow path 130a of the mouthpiece 130 communicates with an air outlet 14 (described later) of the flavor generating article 10 placed in the chamber 120.

As shown in FIG. 1, the flavor generating article 10 has a flavor source 20 and a container 12 that contains the flavor source 20. Furthermore, the flavor generating article 10 preferably has a susceptor 23 arranged inside the flavor source 20. In this case, the flavor source 20 can be heated by inductively heating the susceptor 23 of the flavor generating article 10 using an induction coil provided in the flavor inhaler 100. The susceptor 23 can have any shape that can be arranged in the container. Specifically, in the example shown in FIG. 1, the susceptor 23 is plate-shaped. The thickness of the susceptor 23 is, for example, 10 μm or more and 200 μm or less, and preferably 10 μm or more and 100 μm or less. The susceptor 23 can be formed of any material that can be inductively heated.

The susceptor 23 may be configured to separate the flavor source 20 into a first portion and a second portion. In other words, the susceptor 23 may be configured to divide the space in which the flavor source 20 is placed into two portions. In this case, different types of flavor sources 20 may be contained in the first portion and the second portion.

The susceptor 23 shown in FIG. 1 is a flat plate-like body, but is not limited thereto, and the susceptor 23 may be a curved plate-like body. Specifically, for example, the susceptor 23 may be a plate-like body having an S-shaped cross section when viewed in the longitudinal direction. By curving the susceptor 23, the surface area of the susceptor 23 that can be placed in the container 12 can be increased compared to when the susceptor 23 is flat, and the flavor source 20 can be heated efficiently.

The susceptor 23 may be provided in the flavor inhaler 100. In this case, the susceptor 23 may be configured to be insertable into the flavor generating article 10. If the heat source 110 of the flavor inhaler 100 is not an induction coil, but includes a heating element that can be inserted into the flavor generating article 10, such as a microwave generating antenna or a heating blade, or a heating element that heats the flavor generating article 10 from the outside, the susceptor 23 is not necessary for the flavor generating article 10.

The container 12 may have, for example, a substantially cylindrical side wall 12a, a bottom wall 12b provided at an end of the side wall 12a, and an upper wall 12c provided on the side wall 12a opposite the bottom wall 12b. In this embodiment, the side wall 12a is cylindrical. The side wall 12a may be cylindrical having other cross-sectional shapes, such as a square or rectangle. In this embodiment, the container 12 is preferably formed of a dielectric material. For example, the container 12 may be formed of paper. In this case, the container 12 can be manufactured cheaply and easily. More specifically, the container 12 may be formed of a pulp mold. The container 12 may be formed of an air-impermeable material. Here, the air-impermeable material refers to a material having an air permeability of 0 CU when measured according to ISO2965-1997. Specifically, the container 12 may be formed of air-impermeable paper. In this case, it is possible to prevent the vapor or aerosol generated from the flavor source 20 from escaping from unintended parts of the container 12.

The longitudinal length of the container 12 is, for example, 5 mm or more and 25 mm or less, and preferably 8 mm or more and 20 mm or less. In this case, the longitudinal length of the container 12 is the distance from the bottom wall 12b to the top wall 12c, and does not include the length of the nozzle 28 described later. The diameter of the container 12 (i.e., the width of the side wall 12a) is, for example, 5 mm or more and 15 mm or less, preferably 6 mm or more and 12 mm or less, and more preferably 6 mm or more and 10 mm or less. The thickness of the container 12 (the thickness of the side wall 12a, the bottom wall 12b, or the top wall 12c) may be, for example, 0.2 mm or more and 1 mm or less. The thicknesses of the side wall 12a, the bottom wall 12b, and the top wall 12c may be different from each other. The ratio of the longitudinal length of the container 12 to the diameter of the container 12 (the width of the side wall 12a) is preferably 0.5 to 2.5.

The container 12 may be configured to hold the susceptor 23. Specifically, for example, the side wall 12a of the container 12 may have slits that sandwich and support the ends of the plate-shaped susceptor 23. In this case, the ends of the susceptor 23 in the width direction may be supported by the container 12. The container 12 may be formed of a material that contains tobacco-derived fibers.

The flavor source 20 includes, for example, tobacco. Specific examples of tobacco include shredded dried tobacco leaves, ground leaf tobacco, and tobacco extracts (extracts made from water, organic solvents, or a mixture of these). Ground leaf tobacco is a particle obtained by grinding tobacco leaves. The ground leaf tobacco has an average particle size of, for example, 0.2 mm or more and 1.2 mm or less, and preferably 0.5 mm or more and 0.7 mm or less. The grinding can be performed using a known grinder, and may be either dry grinding or wet grinding. Therefore, the ground leaf tobacco is also called leaf tobacco particles. In this embodiment, the average particle size is determined by a laser diffraction/scattering method, and specifically, is measured using a laser diffraction particle size distribution measuring device (for example, Horiba LA-950). The flavor source 20 may have any shape, such as a block shape, a sheet shape, a particle shape, or a paste shape. In this case, the flavor source 20 may be a porous body. When the flavor source 20 is in a sheet form, the thickness of the flavor source 20 is, for example, 0.1 mm or more and 2 mm or less, preferably 0.2 mm or more and 1.5 mm or less, and more preferably 0.2 mm or more and 0.6 mm or less. When the flavor source 20 is in a sheet form, the flavor source 20 may be wrinkled, folded, or cut into strips. When the sheet-shaped flavor source 20 is cut into strips, the width of the strip may be, for example, 0.1 mm or more and 2 mm or less. When the flavor source 20 is in a particulate form, the average particle size of the flavor source 20 may be, for example, 0.1 mm or more and 3 mm or less, preferably 0.212 mm or more and 2.0 mm or less, and more preferably 0.4 mm or more and 1.18 mm or less. When the average particle size of the flavor source 20 is 0.1 mm or more and 3 mm or less, the size of the particles may be a particle that passes through a mesh with a mesh opening of 3 mm, or a particle size that does not pass through a mesh with a mesh opening of 0.1 mm. If the average particle size of the flavor source 20 is too large, the amount of vapor or aerosol generated by the flavor source 20 may decrease, or the heating efficiency may decrease due to a smaller surface area. On the other hand, if the average particle size of the flavor source 20 is too small, the flavor source 20 may easily fall out of the air outlet 14 or air inlet 13 of the container 12. In addition, the flavor source 20 particles may become clogged in the container 12, increasing the inhalation resistance and making it difficult for the user to inhale. The type of tobacco is not limited, and flue-cured, burley, orient, native, and other Nicotiana tabacum and Nicotiana rustica varieties may be used.

The filling rate of the flavor source 20 contained in the container 12 is, for example, 0.15 to 0.7, preferably 0.2 to 0.6, and more preferably 0.25 to 0.5. In this case, the filling rate of the flavor source 20 is the volume ratio of the flavor source 20 to the void volume inside the container 12. The weight of the flavor source 20 contained in the container 12 is, for example, 100 mg to 500 mg, preferably 150 mg to 400 mg, and more preferably 200 mg to 360 mg.

The flavor source 20 may further include an aerosol source. The type of aerosol source is not particularly limited, and various extracts from natural products and/or their constituent components can be selected depending on the application. The aerosol source is preferably a polyhydric alcohol, and can be, for example, glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof.

The flavor source 20 may include tobacco particles and anti-adhesion particles that are attached to the surfaces of the tobacco particles and have a particle size smaller than the tobacco particles. This can prevent the tobacco particles from adhering to each other. The anti-adhesion particles may include particles such as calcium carbonate, titanium dioxide, magnesium oxide, or carbon black. The average particle size of the anti-adhesion particles may be, for example, 0.1 mm or more and 3 mm or less.

The flavor generating article 10 of this embodiment preferably has a filling member 22 located at least one of the upstream and downstream of the flavor source 20 and provided in the air flow path in the container 12. In this case, the filling member 22 can prevent the vapor or aerosol generated in the flavor source 20 from moving upstream or downstream. As a result, when the flavor source 20 is heated while the user is not smoking, the vapor or aerosol generated in the flavor source 20 can be prevented from leaking upstream or downstream. In addition, if the filling member 22 is provided in the flavor inhaler 100, there is a risk that the vapor or aerosol will aggregate or condense in the flavor inhaler 100. According to this embodiment, since the filling member 22 is provided in the flavor generating article 10, it is possible to prevent aggregation or condensation from occurring in the flavor inhaler 100. Here, the filling member 22 can be formed of any material. The filling member 22 may be an air-permeable member or an air-impermeable member. When the filling member 22 is an air-impermeable member, the filling member 22 is arranged upstream or downstream of the flavor source 20 so as not to completely block the air flow path. In the example shown in FIG. 1, the filling member 22a and the filling member 22b are arranged upstream and downstream of the flavor source 20, respectively. This is not limited to this, and the filling member 22 may be arranged only upstream or downstream of the flavor source 20. For example, the filling member 22 may be a porous member, and specifically may be a filter such as a paper filter or an acetate filter.

The filling member 22 may contain a flavoring. A flavoring is a substance that provides a scent or flavor. The flavoring may be a natural flavoring or a synthetic flavoring. A single type of flavoring may be used as the flavoring, or a mixture of multiple types of flavorings may be used. Any flavoring that is commonly used, such as essential oils, natural flavorings, and synthetic flavorings, may be used as the flavoring. The flavoring may be liquid or solid, and its nature does not matter. Suitable flavors include flavorings selected from tobacco extracts and tobacco components, sugar and sugar-based flavors, licorice, cocoa, chocolate, fruit juice and fruits, spices, liquor, herbs, vanilla, and flower-based flavors, or combinations of these. Specific examples include fragrances selected from isothiocyanates, indoles and their derivatives, ethers, esters, ketones, fatty acids, higher aliphatic alcohols, higher aliphatic aldehydes, higher aliphatic hydrocarbons, thioethers, thiols, terpene hydrocarbons, phenol ethers, phenols, furfural and its derivatives, aromatic alcohols, aromatic aldehydes, lactones, etc., or combinations of these.

For example, a wide variety of flavoring ingredients can be used, such as those described in "Collection of Well-Known and Commonly Used Techniques (Fragrances)" (March 14, 2007, published by the Japan Patent Office), "Dictionary of the Latest Flavors (Popular Edition)" (February 25, 2012, edited by Arai Soichi, Kobayashi Akio, Yajima Izumi, and Kawasaki Michiaki, Asakura Publishing), and "Tobacco Flavoring for Smoking Products" (June 1972, R. J. Reynolds Tobacco Company).

From the viewpoint of providing a good smoking taste, the flavorings that can be contained in the filling member 22 include, for example, acetanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-anethole, star anise oil, apple juice, Peru balsam oil, beeswax absolute, benzaldehyde, benzoin resinoid, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butanedione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamom oil, carob absolute, β- Carotene, carrot juice, L-carvone, β-caryophyllene, cassia bark oil, cedarwood oil, celery seed oil, chamomile oil, cinnamaldehyde, cinnamic acid, cinnamyl alcohol, cinnamyl cinnamate, citronella oil, DL-citronellol, clary sage extract, cocoa, coffee, konjac oil, coriander oil, cuminaldehyde, davana oil, δ-decalactone, γ-decalactone, decanoic acid, dill herb oil, 3,4-dimethyl-1,2-cyclopentanedione, 4,5-dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, 3,7-dimethyl-6 -octenoic acid, 2,3-dimethylpyrazine, 2,5-dimethylpyrazine, 2,6-dimethylpyrazine, ethyl 2-methylbutyrate, ethyl acetate, ethyl butyrate, ethyl hexanoate, ethyl isovalerate, ethyl lactate, ethyl laurate, ethyl levulinate, ethyl maltol, ethyl octanoate, ethyl oleate, ethyl palmitate, ethyl phenylacetate, ethyl propionate, ethyl stearate, ethyl valerate, ethyl vanillin, ethyl vanillin glucoside, 2-ethyl-3,(5 or 6)-dimethylpyrazine, 5-ethyl-3-hydroxy-4-methyl-2(5H)-furanone, 2-ethyl -3-Methylpyrazine, Eucalyptol, Fenugreek Absolute, Genet Absolute, Gentian Root Infusion, Geraniol, Geranyl Acetate, Grape Juice, Guaiacol, Guava Extract, γ-Heptalactone, γ-Hexalactone, Hexanoic Acid, Cis-3-Hexene-1-ol, Hexyl Acetate, Hexyl Alcohol, Phenylhexyl Acetate, Honey, 4-Hydroxy-3-pentenoic Acid Lactone, 4-Hydroxy-4-(3-Hydroxy-1-butenyl)-3,5,5-trimethyl-2-cyclohexen-1-one, 4-(para-hydroxyphenyl)-2-butenyl Tanone, Sodium 4-Hydroxyundecanoate, Immortelle Absolute, β-Ionone, Isoamyl Acetate, Isoamyl Butyrate, Isoamyl Phenylacetate, Isobutyl Acetate, Isobutyl Phenylacetate, Jasmine Absolute, Cola Nut Tincture, Labdanum Oil, Lemon Terpeneless Oil, Licorice Extract, Linalool, Linalyl Acetate, Lovage Root Oil, Maltol, Maple Syrup, Menthol, Menthone, L-Menthyl Acetate, Paramethoxybenzaldehyde, Methyl-2-Pyrrolyl Ketone, Methyl Anthranilate, Methyl Phenylacetate, Methyl Salicylate, 4'- Methylacetophenone, Methylcyclopentenolone, 3-Methylvaleric acid, Mimosa absolute, Honey bean, Myristic acid, Nerol, Nerolidol, γ-Nonalactone, Nutmeg oil, δ-Octalactone, Octanal, Octanoic acid, Orange flower oil, Orange oil, Orris root oil, Palmitic acid, ω-Pentadecalactone, Peppermint oil, Petitgrain Paraguay oil, Phenethyl alcohol, Phenethyl phenylacetate, Phenylacetic acid, Piperonal, Plum extract, Propylguaethol, Propyl acetate, 3-Propylidenephthalide, Prune juice, Pyrvic acid, Raisin extract Structo, rose oil, rum, sage oil, sandalwood oil, spearmint oil, styrax absolute, marigold oil, tea distillate, alpha-terpineol, terpinyl acetate, 5,6,7,8-tetrahydroquinoxaline, 1,5,5,9-tetramethyl-13-oxacyclo(8.3.0.0(4.9))tridecane, 2,3,5,6-tetramethylpyrazine, thyme oil, tomato extract, 2-tridecanone, triethyl citrate, 4-(2,6,6-trimethyl-1-cyclohexenyl)2-buten-4-one, 2,6,6-trimethyl-2-cyclohexene 2-1,4-dione, 4-(2,6,6-trimethyl-1,3-cyclohexadienyl)2-buten-4-one, 2,3,5-trimethylpyrazine, γ-undecalactone, γ-valerolactone, vanilla extract, vanillin, veratraldehyde, violet leaf absolute, citral, mandarin oil, 4-(acetoxymethyl)toluene, 2-methyl-1-butanol, ethyl 10-undecenoate, isoamyl hexanoate, 1-phenylethylacetic acid, lauric acid, 8-mercaptomenthone, sinensal, and hexyl butyrate, with menthol being particularly preferred. These flavorings may be used alone or in combination of two or more.

The type of solid flavor is not particularly limited, and from the viewpoint of imparting a good smoking taste, examples include flavors selected from cocoa powder, carob powder, coriander powder, licorice powder, orange peel powder, herb powder, flower powder, spice powder, and tea powder, etc., or combinations thereof.

Furthermore, the filling member 22 may contain a cooling agent or a flavoring agent. The type of the cooling agent is not particularly limited, and from the viewpoint of imparting a good smoking taste, for example, menthol, camphor, isopulegol, cineole, peppermint oil, peppermint oil, eucalyptus oil, 2-l-menthoxyethanol (COOLACT (registered trademark) 5), 3-l-menthoxypropane-1,2-diol (COOLACT (registered trademark) 10), l-menthyl-3-hydroxybutyrate (COOLACT (registered trademark) 20), p-menthane-3,8-diol (COOLACT (registered trademark) 38D), N-( 2-Hydroxy-2-phenylethyl)-2-isopropyl-5,5-dimethylcyclohexane-1-carboxamide (COOLACT® 370), N-(4-(cyanomethyl)phenyl)-2-isopropyl-5,5-dimethylcyclohexanecarboxamide (COOLACT® 400), N-(3-hydroxy-4-methoxyphenyl)-2-isopropyl-5,5-dimethylcyclohexanecarboxamide, N-ethyl-p-menthane-3-carboxamide (WS-3), ethyl-2-(p-menthane N-(4-methoxyphenyl)-p-menthanecarboxamide (WS-12), 2-isopropyl-N,2,3-trimethylbutyramide (WS-23), 3-l-menthoxy-2-methylpropane-1,2-diol, 2-l-menthoxyethan-1-ol, 3-l-menthoxypropan-1-ol, 4-l-menthoxybutan-1-ol, menthyl lactate (FEMA3748), menthone glycerin acetal (Frescolat MGA, FEMA380 7, FEMA3808), 2-(2-l-menthyloxyethyl)ethanol, menthyl glyoxylate, menthyl 2-pyrrolidone-5-carboxylate, menthyl succinate (FEMA3810), N-(2-(pyridin-2-yl)-ethyl)-3-p-menthanecarboxamide (FEMA4549), N-(ethoxycarbonylmethyl)-p-menthane-3-carboxamide, N-(4-cyanomethylphenyl)-p-menthanecarboxamide, and N-(4-aminocarbonylphenyl)-p-menthane. Cooling agents may be used alone or in combination of two or more.

The type of flavoring agent is not particularly limited, and from the viewpoint of imparting a good smoking taste, examples include sweeteners (sugars (glucose, fructose, isomerized sugar, caramel, etc.), acidulants (organic acids, etc.), and other flavoring agents (materials that impart umami, bitterness, saltiness, etc.). In addition, lipids (wax, wax, fatty acids (short-chain, medium-chain, long-chain fatty acids, etc.)) may be added as desired.

The filling member 22 preferably includes a granular filling member. In this case, the granular filling member can prevent the vapor or aerosol generated in the flavor source 20 from leaking upstream or downstream when the flavor source 20 is heated while the user is not smoking, while allowing the gaps in the granular filling member to function as air flow paths when the user is smoking. Furthermore, by including a granular filling member in the filling member 22, the surface area of the filling member 22 can be increased, and therefore the vapor or aerosol that comes into contact with the granular filling member can be efficiently cooled.

The granular filling member preferably contains at least one selected from the group consisting of calcium carbonate, cellulose, tobacco granules, glycerin, propylene glycol, and flavor additives. When the granular filling member contains, for example, tobacco granules or flavor additives, it is possible to impart flavors and the like to the vapor or aerosol. When the granular filling member contains glycerin or propylene glycol, it is possible to increase the amount of aerosol. When the granular filling member contains calcium carbonate or cellulose, these have relatively low specific heat, so that some aggregation or condensation of the vapor or aerosol occurs, and leakage of the vapor or aerosol from the container can be further suppressed. The granular filling member and the flavor source 20 may contain tobacco granules. In this case, a common material can be used for the flavor source 20 and the granular filling member, so that the flavor-generating article 10 can be efficiently manufactured.

The type of flavor additive contained in the granular filling material is not particularly limited, and from the viewpoint of imparting a good flavor sensation, acetanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, trans-anethole, star anise oil, apple juice, Peru balsam oil, beeswax absolute, benzaldehyde, benzoin resinoid, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butanedione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamom oil, carob absolute, β-carotene, ni ginseng juice, L-carvone, β-caryophyllene, cassia bark oil, cedarwood oil, celery seed oil, chamomile oil, cinnamaldehyde, cinnamic acid, cinnamyl alcohol, cinnamyl cinnamate, citronella oil, DL-citronellol, clary sage extract, cocoa, coffee, konjac oil, coriander oil, cuminaldehyde, davana oil, δ-decalactone, γ-decalactone, decanoic acid, dill herb oil, 3,4-dimethyl-1,2-cyclopentanedione, 4,5-dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, 3,7-dimethyl-6-octenoic acid, 2,3-dimethylpyrazine, 2,5-Dimethylpyrazine, 2,6-Dimethylpyrazine, Ethyl 2-Methylbutyrate, Ethyl Acetate, Ethyl Butyrate, Ethyl Hexanoate, Ethyl Isovalerate, Ethyl Lactate, Ethyl Laurate, Ethyl Levulinate, Ethyl Maltol, Ethyl Octanoate, Ethyl Oleate, Ethyl Palmitate, Ethyl Phenylacetate, Ethyl Propionate, Ethyl Stearate, Ethyl Valerate, Ethyl Vanillin, Ethyl Vanillin Glucoside, 2-Ethyl-3,(5 or 6)-Dimethylpyrazine, 5-Ethyl-3-Hydroxy-4-Methyl-2(5H)-Furanone, 2-Ethyl-3-Methylpyrazine, Eucalyptol, Fenugreek Absolute , Genet Absolute, Gentian Root Infusion, Geraniol, Geranyl Acetate, Grape Juice, Guaiacol, Guava Extract, Gamma-Heptalactone, Gamma-Hexalactone, Hexanoic Acid, Cis-3-Hexene-1-ol, Hexyl Acetate, Hexyl Alcohol, Phenylhexyl Acetate, Honey, 4-Hydroxy-3-Pentenoic Acid Lactone, 4-Hydroxy-4-(3-Hydroxy-1-butenyl)-3,5,5-trimethyl-2-cyclohexen-1-one, 4-(para-hydroxyphenyl)-2-butanone, Sodium 4-Hydroxyundecanoate, Immortelle Absolute, β-Ionone, Isoal Acetate Myrrh, Isoamyl butyrate, Isoamyl phenylacetate, Isobutyl acetate, Isobutyl phenylacetate, Jasmine absolute, Cola nut tincture, Labdanum oil, Lemon terpeneless oil, Licorice extract, Linalool, Linalyl acetate, Lovage root oil, Maltol, Maple syrup, Menthol, Menthone, L-menthyl acetate, Paramethoxybenzaldehyde, Methyl 2-pyrrolyl ketone, Methyl anthranilate, Methyl phenylacetate, Methyl salicylate, 4'-Methylacetophenone, Methylcyclopentenolone, 3-Methylvaleric acid, Mimosa absolute, Honey fruit, Myristic acid, Nerol, Neroli Dole, γ-nonalactone, nutmeg oil, δ-octalactone, octanal, octanoic acid, orange flower oil, orange oil, orris root oil, palmitic acid, ω-pentadecalactone, peppermint oil, petitgrain Paraguay oil, phenethyl alcohol, phenethyl phenylacetate, phenylacetic acid, piperonal, plum extract, propenyl guaethol, propyl acetate, 3-propylidenephthalide, prune juice, pyruvic acid, raisin extract, rose oil, rum, sage oil, sandalwood oil, spearmint oil, styrax absolute, marigold oil, tea distillate, α-terpine ol, terpinyl acetate, 5,6,7,8-tetrahydroquinoxaline, 1,5,5,9-tetramethyl-13-oxacyclo(8.3.0.0(4.9))tridecane, 2,3,5,6-tetramethylpyrazine, thyme oil, tomato extract, 2-tridecanone, triethyl citrate, 4-(2,6,6-trimethyl-1-cyclohexenyl)2-buten-4-one, 2,6,6-trimethyl-2-cyclohexene-1,4-dione, 4-(2,6,6-trimethyl-1,3-cyclohexadienyl)2-buten-4-one, 2,3,5-trimethylpyrazine, γ-undecalactone, γ-valerolactone, vanilla extract It may be at least one selected from the group consisting of: stearic acid, vanillin, veratraldehyde, violet leaf absolute, N-ethyl-p-menthane-3-carboxamide (WS-3), ethyl-2-(p-menthane-3-carboxamide) acetate (WS-5), sugar (sucrose, fructose, etc.), cocoa powder, carob powder, coriander powder, licorice powder, orange peel powder, rose pip powder, chamomile flower powder, lemon verbena powder, peppermint powder, leaf powder, spearmint powder, black tea powder, natural plant flavors (e.g., jasmine oil, lemon oil, vetiver oil, lovage oil), and esters.

The granular filling member preferably includes an upstream granular filling member located upstream of the flavor source 20 and a downstream granular filling member located downstream of the flavor source. Specifically, it is preferable that the filling member 22a includes an upstream granular filling member, and the filling member 22b includes a downstream granular filling member. In this case, the vapor or aerosol generated in the flavor source 20 can be prevented from moving both upstream and downstream by the granular filling member provided in the air flow path. As a result, when the flavor source 20 is heated while the user is not smoking, the vapor or aerosol generated in the flavor source 20 can be prevented from leaking both upstream and downstream.

The filling member 22a (upstream granular filling member) may contain a different material from the filling member 22b (downstream granular filling member). In this case, for example, a material that imparts a flavor or the like is used in the filling member 22b (downstream granular filling member) through which the vapor or aerosol passes, and the filling member 22a (upstream granular filling member) is made of a different material, allowing for freedom in the design of the flavor-generating article 10.

The average particle size of the granular filling member is preferably 0.1 mm or more and 3 mm or less. If the average particle size of the granular filling member is less than 0.1 mm, the particle size is too small, the gaps in the granular filling member are small, and there is a risk that the airflow resistance will be too high. In this case, the granular filling member is likely to spill out of the gaps in the container 12 of the flavor-generating product 10. On the other hand, if the average particle size of the granular filling member is more than 3 mm, the particle size is too large, the gaps in the granular filling member are large, and steam or aerosol is likely to leak through the gaps in the granular filling member. Therefore, if the average particle size is 0.1 mm or more and 3 mm or less, it is possible to suppress the leakage of steam or aerosol through the gaps in the granular filling member while suppressing the increase in airflow resistance or the spilling of the granular filling member from the container 12.

At least one of the filling member 22a and the filling member 22b may have multiple layers. Specifically, for example, the filling member 22a or the filling member 22b may be formed by stacking different types of granular filling members in the longitudinal direction. The hardness of the filling member 22 containing the granular filling members is preferably higher than the hardness of the flavor source 20 or the container 12. This can prevent the filling members 22a and 22b from being broken (crushed) and flowing out of the container 12. The filling member 22 containing the granular filling members may be coated with a buffer element such as polylactic acid or a cushioning material.

The container 12 has an air inlet 13 located upstream of the flavor source 20 and an air outlet 14 located downstream of the flavor source 20. As shown in FIG. 1, when the filling member 22b (granular filling member) is located downstream of the flavor source 20, the air outlet 14 is located downstream of the filling member 22b. The flavor-generating article 10 preferably has an air vent 15 communicating with the inside of the container 12. In this case, air can be supplied through the air vent 15, so that the steam or aerosol generated in the flavor source can be efficiently cooled by the air from the air vent 15. More specifically, the container 12 preferably has an air vent 15 communicating with the filling member 22b. As a result, air can be supplied through the air vent 15 to the filling member 22b (granular filling member) located downstream of the flavor source 20, so that the steam or aerosol generated in the flavor source 20 can be efficiently cooled by the air from the air vent 15. In the example shown in FIG. 1, the vent 15 is provided in the side wall 12a of the container 12, but this is not limited, and the vent 15 may be provided in the top wall 12c. Also, the vent 15 may be provided in both the side wall 12a and the top wall 12c of the container 12.

The vent 15 is preferably provided closer to the flavor source 20 than to the upper end of the container 12 (i.e., the outer end of the upper wall 12c). In this case, the air flow path of the air through the vent 15 can be lengthened, so that the steam or aerosol generated in the flavor source 20 can be cooled more efficiently by the air from the vent 15. On the other hand, the vent 15 may be provided closer to the upper end of the container 12 than to the flavor source 20. In this case, compared to when the vent 15 is provided closer to the flavor source 20, the leakage of the steam or aerosol through the vent 15 can be suppressed. The direction of the vent 15 is preferably directed toward the bottom wall 12b of the container 12. In this case, too, the air flow path of the air through the vent 15 can be lengthened, so that the steam or aerosol generated in the flavor source 20 can be cooled more efficiently by the air from the vent 15.

The flavor generating article 10 preferably has a breathable partition member between the filling member 22 and the flavor source 20. Specifically, in the example shown in FIG. 1, the flavor generating article 10 has a partition member 26a between the filling member 22a and the flavor source 20, and a partition member 26b between the filling member 22b and the flavor source 20. In this case, it is possible to prevent the filling member 22 (granular filling member) and the flavor source 20 from mixing in the container 12.

As shown in FIG. 2, the flavor inhaler 100 has an intake port 110a communicating with the chamber 120. The flavor inhaler 100 may have an air flow path F1 communicating with the air inlet 13 of the container 12 of the flavor generating article 10. Specifically, the air flow path F1 communicates the intake port 110a with the air inlet 13 of the container 12. That is, the intake port 110a communicates with the air inlet 13 of the flavor generating article 10. This air flow path F1 preferably passes through the outside of the side wall 12a of the container 12 and communicates with the air inlet 13. In this case, an air layer (air flow path F1) is formed outside the side wall 12a of the container 12, so that the heat of the container 12 can be prevented from being transmitted to the outside of the flavor inhaler 100. The flavor inhaler 100 also has an exhaust port 130b communicating with the air outlet 14 of the flavor generating article 10.

Specifically, as shown in FIG. 2, when the flavor generating article 10 is housed in the chamber 120, it is preferable that R3>R4, where R3 is the airflow resistance downstream of the susceptor 23 and R4 is the airflow resistance upstream of the susceptor 23. In this case, when the flavor source 20 is heated while the user is not smoking, the steam or aerosol generated in the flavor source 20 can be prevented from moving downstream. Generally, the flow path of the flavor inhaler 100 is relatively long upstream of the susceptor 23, so that the steam or aerosol is less likely to leak from the flavor inhaler 100. Therefore, by making the airflow resistance downstream of the susceptor 23 higher than the upstream, the steam or aerosol can be further prevented from leaking from the flavor inhaler 100.

As described above, the heating source 110 of the flavor inhaler 100 may have a heating body that can be inserted into the flavor generating article 10, rather than an induction coil. That is, the heating source 110 may be configured to be inserted into the container 12 of the flavor generating article 10 when the flavor generating article 10 is accommodated in the chamber 120. In this case, when the flavor generating article 10 is accommodated in the chamber 120, the airflow resistance downstream of the flavor source 20 is R1, and the airflow resistance upstream of the flavor source 20 is R2, it is preferable that R1>R2. As a result, in this case, when the flavor source 20 is heated while the user is not smoking, the steam or aerosol generated in the flavor source 20 can be prevented from moving downstream. In addition, generally, the flow path of the flavor inhaler 100 is relatively long upstream of the flavor source 20, so that the steam or aerosol is less likely to leak from the flavor inhaler 100. Therefore, by making the airflow resistance downstream of the flavor source 20 higher than that upstream, it is possible to further prevent the vapor or aerosol from leaking from the flavor inhaler 100.

1 and 2, the flavor generating article 10 may further have a nozzle 28 communicating with the air outlet 14 of the container 12. As shown in FIG. 1, the inner diameter D1 of the nozzle 28 is preferably smaller than the inner diameter D2 of the container 12. In this case, the flow rate of the vapor or aerosol from the flavor generating article 10 can be increased when the user smokes, compared to when the flavor generating article 10 does not have the nozzle 28. This can prevent the vapor or aerosol flowing out from the flavor generating article 10 from colliding with the flow path wall surface of the flavor inhaler 100 (the wall surface of the mouthpiece 130 that defines the air flow path 130a shown in FIG. 2) and coagulating or condensing. The inner diameter D1 of the nozzle 28 and the inner diameter D2 of the container 12 refer to the maximum inner diameter in the direction perpendicular to the longitudinal direction.

The length L1 of the nozzle 28 (see FIG. 2) is preferably 3 mm or more and 10 mm or less. If the length L1 of the nozzle 28 is less than 3 mm, the nozzle 28 is too short and the steam or aerosol flowing out from the nozzle 28 may diffuse, and it may not be possible to effectively prevent the steam or aerosol from colliding with the flow path wall of the flavor inhaler 100. If the length L1 of the nozzle 28 is more than 10 mm, the size of the flavor inhaler 100 may become too large to accommodate the flavor generating article 10 having the nozzle 28. Therefore, if the length L1 of the nozzle 28 is in the above range, it is possible to prevent the size of the flavor inhaler 100 from becoming too large while suppressing the diffusion of the steam or aerosol. In this embodiment, the length of the nozzle 28 refers to the length of the nozzle 28 in the longitudinal direction. In addition, it is preferable that the length of the nozzle 28 is the same as or shorter than the length of the mouthpiece 130. Specifically, it is preferable that the length of the nozzle 28 is half or less of the length of the mouthpiece 130. In this case, the air taken in through the air inlet 110a and the vapor or aerosol generated by the flavor source 20 are more likely to mix.

As shown in FIG. 1, the diameter D3 of the air outlet 14 of the container 12 and the inner diameter D1 of the nozzle 28 may be substantially equal. In this case, since there is substantially no difference between the diameter D3 of the air outlet and the inner diameter D1 of the nozzle, pressure loss at the boundary between the air outlet 14 and the nozzle 28 can be suppressed. The inner diameter D1 of the nozzle 28 and the diameter D3 of the air outlet 14 are preferably 1 mm or more and 4 mm or less. The inner diameter D1 of the nozzle 28 and the diameter D3 of the air outlet 14 may be the same or different.

The flavor generating article 10 may have a mesh or filter covering the air outlet 14 of the container 12. In this case, the flavor source 20 can be prevented from being discharged from the nozzle 28. In the example shown in FIG. 1 and FIG. 2, the container 12 has a single air outlet 14, but this is not limited to this, and the container 12 may have multiple air outlets 14. In this case, it is preferable that all of the multiple air outlets 14 communicate with the (single) nozzle 28. This allows the steam or aerosol generated by the flavor source 20 to come into contact with the wall surface of the container 12 that defines the multiple air outlets 14, thereby improving the cooling efficiency of the steam or aerosol. In addition, it is preferable that the diameter D3 of each of the multiple air outlets 14 is smaller than the inner diameter D1 of the nozzle 28. In other words, by providing multiple air outlets 14 with small diameters, it is possible to prevent the contents of the container 12 from flowing out to the outside through the multiple air outlets 14. Note that multiple nozzles 28 may be provided for each of the multiple air outlets 14.

As shown in FIG. 2, the ratio of the length L1 of the nozzle 28 to the distance d1 from the tip of the nozzle 28 to the opening of the mouthpiece 130 of the flavor inhaler 100 is preferably 10:0 to 3:7. If the length of the nozzle is relatively shorter than the above ratio range, the vapor or aerosol flowing out of the nozzle 28 may diffuse, and it may not be possible to effectively prevent it from colliding with the flow path wall surface of the flavor inhaler 100. Therefore, if the above ratio is within the above range, the diffusion of the vapor or aerosol can be suppressed.

As shown in FIG. 2, the flavor inhaler 100 has a gap G1 between the mouthpiece 130 and the nozzle 28, which is adjacent to the nozzle 28 in the radial direction. The intake port 110a of the flavor inhaler 100 is preferably configured to supply air to this gap G1. The steam or aerosol flowing out from the nozzle 28 is diffused and enters the gap G1 between the mouthpiece 130 and the nozzle 28, forming a spiral flow, which may cause aggregation or coagulation in the mouthpiece 130 or the nozzle 28. When the flavor inhaler 100 has the intake port 110a, air can be supplied to the gap G1, so that the steam or aerosol flowing out from the nozzle 28 can be prevented from entering the gap G1. In the illustrated example, the inner diameter of the mouthpiece 130 is constant, but the inner diameter of the mouthpiece 130 may expand toward the exhaust port 130b.

In the example shown in FIG. 2, the intake port 110a may be formed at the boundary between the mouthpiece 130 and the housing 101. That is, the intake port 110a may be provided between the surface of the mouthpiece 130 facing the container 12 and the surface of the container 12 facing the mouthpiece 130. Here, a groove portion that defines at least a part of the intake port 110a may be formed on at least one of the surface of the mouthpiece 130 facing the container 12 and the surface of the container 12 facing the mouthpiece 130. In this case, the intake port 110a can be provided upstream of the gap G1, so that the steam or aerosol flowing out of the nozzle 28 can be efficiently prevented from entering the gap G1.

Next, a flavor generating article 10 according to another embodiment that can be used in the flavor inhaler 100 shown in FIG. 2 will be described. FIG. 3 is a schematic side cross-sectional view of the flavor generating article 10 according to another embodiment. The container 12 of the flavor generating article 10 shown in FIG. 3 has a guide portion 29 that extends in the extension direction of the nozzle 28 and is located between the mouthpiece 130 and the nozzle. In this case, when the mouthpiece 130 is attached to the housing 101, the guide portion 29 can guide the mouthpiece 130, so that the guide portion 29 can easily position the flavor generating article 10 relative to the mouthpiece 130. The guide portion 29 can be formed on the container 12. Specifically, in the illustrated example, the guide portion 29 is formed on the upper wall 12c of the container 12. It is preferable that the guide portion 29 is formed in a ring shape (continuously) when viewed in the longitudinal direction. The guide portion 29 may be formed intermittently along the ring shape when viewed in the longitudinal direction.

As shown in FIG. 2, an air flow path F2 communicating with the intake port 110a extends between the mouthpiece 130 and the upper wall 12c of the container 12. That is, a portion of the air flowing in from the intake port 110a flows into the gap G1 through the air flow path F2. In the flavor-generating article 10 shown in FIG. 3, the guide portion 29 can be configured to guide the air supplied from the intake port 110a toward the opening of the mouthpiece 130. That is, the air flowing in from the intake port 110a into the gap G1 can be guided by the guide portion 29 to the opening of the mouthpiece 130. This can prevent steam or aerosol from accumulating in the gap G1.

Figure 4 is a schematic side cross-sectional view of a flavor generating article 10 according to another embodiment. The flavor generating article 10 shown in Figure 4 differs from the flavor generating article 10 shown in Figures 1 to 3 in the shape of the nozzle 28. Specifically, as shown in Figure 4, the nozzle 28 includes a portion 28a whose outer diameter increases from the opening of the nozzle 28 toward the air outlet 14 of the container 12. In this case, a tapered surface is formed on the outer circumferential surface of the nozzle 28, the outer diameter of which decreases toward the opening of the nozzle 28. Therefore, the nozzle 28 itself can function as the guide portion 29 shown in Figure 4.

5 is a schematic side cross-sectional view of a flavor generating article 10 according to another embodiment. The flavor generating article 10 shown in FIG. 5 differs from the flavor generating article 10 shown in FIG. 1 to FIG. 4 in that it has a flow path curved portion. Specifically, the flavor generating article 10 shown in FIG. 5 has a flow path curved portion arranged downstream of the flavor source 20 and configured to curve the air flow path passing through the container. This allows the air flow path downstream of the container 12 to be longer than when there is no flow path curved portion. Therefore, it is possible to suppress the steam or aerosol that has passed through the container 12 from leaking to the outside of the container 12, and to promote cooling of the steam or aerosol. In general, the flow path of the flavor inhaler 100 is relatively long upstream of the flavor source 20, so that the steam or aerosol is less likely to leak from the flavor inhaler 100. Therefore, by arranging the flow path curved portion downstream of the flavor source 20, it is possible to efficiently suppress the steam or aerosol from leaking from the flavor inhaler 100. In addition, as shown in FIG. 5, when the curved flow path portion is disposed inside the container 12, the vapor or aerosol is cooled and coagulated or condensed in the curved flow path portion, so that it is possible to suppress the vapor or aerosol from coagulating or condensing outside the container 12 (for example, inside the flavor inhaler 100). The curved flow path portion may be disposed upstream of the flavor source 20.

The flow path bending portion may include one or more selected from the group consisting of a spiral flow path body, a spiral flow path body, and a gas-impermeable plate-shaped member. In this case, the air flow path can be curved in a spiral, a spiral, or random manner by the flow path bending portion. In the example shown in FIG. 5, a gas-impermeable plate-shaped member 31 is arranged in the container 12 as the flow path bending portion. The plate-shaped member 31 is preferably arranged so as to extend in a direction intersecting the longitudinal direction of the flavor-generating product 10. In this case, the steam or aerosol from the flavor source 20 moving along the longitudinal direction can be caused to collide with the plate-shaped member 31 and moved in a direction intersecting the longitudinal direction. In the example shown in FIG. 5, the plate-shaped member 31 is arranged so as to extend in a direction perpendicular to the longitudinal direction. The plate-shaped member 31 may have any shape, such as a disk or a polygonal plate. In addition, the plate-shaped member 31 is preferably arranged so as to overlap the air outlet 14 when viewed from the longitudinal direction. In this case, it is possible to prevent the vapor or aerosol generated in the flavor source 20 from flowing directly into the air outlet 14 without bending. In addition, the outer shape of the plate-shaped member 31 when viewed in the longitudinal direction may be a shape similar to the outer shape of the container 12. Specifically, for example, when the container 12 (side wall 12a) is cylindrical, the plate-shaped member 31 may be disk-shaped. The length of the plate-shaped member 31 (i.e., the length in the short direction of the container 12 shown in FIG. 5) is preferably 90% or less of the inner diameter of the container 12, and more preferably 80% or less. In addition, the length of the plate-shaped member 31 is, for example, 40% or more of the inner diameter of the container 12, preferably 50% or more, and more preferably 60% or more. When the length of the plate-shaped member 31 is in the above range, it is possible to obtain a preferable airflow resistance while bending the air flow path.

Figure 6 is a schematic exploded perspective view of a spiral flow path body, which is another example of a flow path curvature section. As shown in the figure, the spiral flow path body 32 may have an upper member 33, a lower member 34, and a spiral member 35 located between them. Air flowing in from the lower member 34 may move along the spiral member 35 and flow out from the upper member 33. That is, the spiral flow path body 32 may have a spiral flow path 36 defined by the upper member 33, the lower member 34, and the spiral member 35. The spiral flow path 36 may have a flow path start point 36a and a flow path end point 36b. Therefore, the spiral flow path body 32 can curve the flow path of the flowing air into a spiral shape.

The upper member 33 is, for example, generally plate-shaped and is preferably formed from any gas-impermeable material. Specifically, for example, the upper member 33 is preferably formed from gas-impermeable paper. The upper member 33 may be formed in a thicker block shape. The upper member 33 has an air outlet 33a that allows air that has moved along the spiral member 35 to flow out of the spiral flow path body 32. In the illustrated example, the air outlet 33a is formed in approximately the center of the upper member 33, aligned with the center of the spiral of the spiral member 35.

The spiral member 35 is a member having a spiral shape, i.e., a shape that describes a line that moves away from the center as it rotates within a single plane. In the example shown in FIG. 6, the spiral member 35 has a curved spiral shape, but is not limited to this, and a portion of the spiral member 35 may be straight, or the spiral member 35 may have corners. The spiral member 35 is preferably formed of any gas-impermeable material. Specifically, for example, the spiral member 35 is preferably formed of gas-impermeable paper.

The lower member 34 is, for example, generally plate-shaped and is preferably formed from any gas-impermeable material. Specifically, for example, the lower member 34 is preferably formed from gas-impermeable paper. The lower member 34 may be formed in a thicker block shape. The lower member 34 has an air inlet 34a for supplying air to the spiral flow path. In the illustrated example, the air inlet 34a is formed near the outer edge of the lower member 34, aligned with the outside of the spiral of the spiral member 35.

The spiral member 35 may be formed integrally with the upper member 33 or the lower member 34. In this case, the formation of a gap between the spiral member 35 and the upper member 33 or the lower member 34 is suppressed, so that leakage of steam or aerosol from the gap between the spiral member 35 and the upper member 33 or the lower member 34 can be suppressed. In addition, the spiral flow passage body 32 can be easily formed simply by attaching the separate upper member 33 or lower member 34 to the spiral member. Also, as shown in FIG. 6, the upper member 33, the lower member 34, and the spiral member 35 may each be formed separately and then joined together.

The spiral flow path body 32 may be arranged to cover a part of the cross section perpendicular to the longitudinal direction of the container 12 of the flavor-generating product 10, as in the plate-like member 31 shown in FIG. 5. That is, the spiral flow path body 32 may be arranged in the flavor-generating product 10 so as to have a gap between it and the side wall 12a of the container 12. On the other hand, the spiral flow path body 32 may be arranged to cover the entire cross section perpendicular to the longitudinal direction of the container 12 of the flavor-generating product 10. In other words, the spiral flow path body 32 may be arranged to be substantially in close contact with the side wall 12a of the container 12. That is, when viewed from the longitudinal direction of the container 12, the outer shape of the spiral flow path body 32 may substantially match the inner shape of the container 12. The spiral flow path body 32 may be arranged to close the opening of the container 12. In this case, the spiral flow path body 32 can function as a lid (upper wall 12c) of the container 12. Therefore, by providing the spiral flow path body 32 in the container 12, it is possible to prevent the flavor source 20 from spilling out of the container 12. The spiral flow path body 32 may also be disposed at the top of the container 12 and joined to the container 12. In this case, it is preferable that the outer shape of the spiral flow path body 32 as viewed from the longitudinal direction of the container 12 substantially matches the inner shape of the container 12.

The spiral flow path body 32 preferably has an air vent that communicates with the spiral flow path 36 between the flow path start point 36a and the flow path end point 36b. In this case, air can be supplied through the air vent, so that the steam or aerosol passing through the spiral flow path 36 can be efficiently cooled by the air from the air vent. The air vent 15 can be formed in at least one of the upper member 33, the lower member 34, and the spiral member 35. The flow path start point 36a communicates with the air inlet 34a of the lower member 34, and the flow path end point 36b communicates with the air outlet 33a of the spiral flow path body 32.

Figure 7 is a schematic exploded perspective view of another example of a spiral flow path body 32. The spiral flow path body 32 shown in Figure 7 has a different configuration of the lower member 34 compared to the spiral flow path body 32 shown in Figure 6. Specifically, the lower member 34 shown in Figure 7 has a gas-permeable member 34b and a gas-impermeable member 34c provided on the surface of the gas-permeable member 34b. In this case, steam or aerosol flows in from the part of the gas-permeable member 34b where the gas-impermeable member 34c is not provided, moves in a spiral shape along the spiral member 35, and can flow out from the upper member 33.

The gas-permeable member 34b is, for example, generally plate-shaped and made of any gas-permeable material. Specifically, for example, the gas-permeable member 34b is preferably made of nonwoven fabric. The gas-impermeable member 34c is, for example, generally plate-shaped and made of any gas-impermeable material. Specifically, for example, the gas-impermeable member 34c is preferably made of paper. As described above, the portion of the gas-permeable member 34b where the gas-impermeable member 34c is not provided can function as an air inlet for supplying air to the spiral flow path 36.

As shown in FIG. 7, it is preferable that the gas-impermeable member 34c is disposed on at least one surface of the gas-permeable member 34b so as not to overlap with the outer edge of the gas-permeable member 34b. In this case, the vapor or aerosol flows in from the outer edge of the gas-permeable member 34b, moves in a spiral shape along the spiral member 35, and can flow out from the upper member 33.

Also, as shown in FIG. 7, the center of the gas-impermeable member 34c and the center of the gas-permeable member 34b may substantially coincide. In this case, steam or aerosol can be prevented from flowing in from the center of the gas-permeable member 34b. Furthermore, when the gas-impermeable member 34c is arranged so as not to overlap with the outer edge of the gas-permeable member 34b, the steam or aerosol can flow in from the outer edge of the gas-permeable member 34b, move in a spiral shape along the spiral member 35, and flow out from the upper member 33. Here, the center of the gas-impermeable member 34c or the gas-permeable member 34b refers to the center in a direction perpendicular to the longitudinal direction, i.e., the direction perpendicular to the direction in which the upper member 33, the lower member 34, and the spiral member 35 are adjacent to each other.

8 is a schematic exploded perspective view of a spiral flow path body, which is another example of a flow path curved portion. The spiral flow path body 40 has at least one spiral flow path 42 having an air inlet 42a and an air outlet 42b. More specifically, in this embodiment, the spiral flow path body 40 has a flow path body 41 disposed in the container 12 of the flavor-generating product 10, and a plurality of annular walls 44 are formed on the outer circumferential surface of the flow path body 41, and an annular flow path 45 is formed between adjacent annular walls 44. Also, as shown in FIG. 8, the annular wall 44 may have one or more parallel flow paths 43 extending approximately parallel to the longitudinal direction of the flavor-generating product 10, connecting adjacent annular flow paths 45 to each other. In other words, the annular wall 44 may have a cutout portion for defining one or more parallel flow paths 43. In this embodiment, the spiral flow path 42 may be formed by the plurality of annular flow paths 45 and one or more parallel flow paths 43. When the adjacent annular walls 44 are the first annular wall 44 and the second annular wall 44, it is preferable that the one or more parallel flow passages 43 formed in the first annular wall 44 are positioned so as not to overlap with the one or more parallel flow passages 43 formed in the second annular wall 44 when viewed in the longitudinal direction. In this case, the length of the spiral flow passage 42 can be increased, so that the cooling of the steam or aerosol can be promoted. Specifically, it is preferable that the parallel flow passages formed in the first annular wall 44 and the parallel flow passages provided in the second annular wall 44 are provided at positions shifted by 180 degrees.

The spiral flow path 42 may extend in the longitudinal direction of the flavor-generating article 10. In other words, the spiral flow path 42 may have a flow path that follows a curve that moves in the longitudinal direction while rotating. It is preferable that the air inlet 42a and the air outlet 42b are positioned so that they do not overlap when viewed in the longitudinal direction of the flavor-generating article 10.

The spiral flow passage body 40 is preferably arranged to fit into the side wall 12a of the container 12 of the flavor generating article 10. In this case, the side wall 12a of the container 12 and the flow passage body 41 define a spiral flow passage 42, and most of the vapor or aerosol generated by the flavor source 20 can pass through the spiral flow passage 42.

In Figs. 5 to 8, the flow path bending portion is described as a plate-shaped member 31, a spiral flow path body 32, and a helical flow path body 40. However, the flow path bending portion may include a groove or a rough surface formed on the inner surface of the wall (upper wall 12c or side wall 12a) of the container 12. In this case, the flow path of the vapor or aerosol passing through the container 12 can be curved without providing a flow path bending portion separately from the container 12. Also, in Figs. 5 to 8, the flow path bending portion is described as being disposed inside the container, but the flow path bending portion may be disposed outside the container 12. In this case, it is possible to prevent the flavor source 20 in the container 12 from entering the flow path bending portion.

9 is a schematic side cross-sectional view of a flavor generating article 10 according to another embodiment. The flavor generating article 10 shown in FIG. 9 differs from the flavor generating article 10 shown in FIG. 1 to FIG. 8 in that it has a check valve. Specifically, the flavor generating article 10 shown in FIG. 9 has a check valve 50 located downstream of the flavor source 20 and configured to allow gas to move from the flavor source 20 to the outside of the container 12. This allows the check valve 50 to prevent the vapor or aerosol generated in the flavor source 20 from moving downstream. As a result, when the flavor source 20 is heated while the user is not smoking, the vapor or aerosol generated in the flavor source 20 can be prevented from leaking downstream. In general, the flow path of the flavor inhaler 100 is relatively long upstream of the flavor source 20, so that the vapor or aerosol is less likely to leak from the flavor inhaler 100. Therefore, by arranging the check valve 50 downstream of the flavor source 20, the vapor or aerosol can be efficiently prevented from leaking from the flavor inhaler 100. However, a check valve 50 may be placed upstream of the flavor source 20.

The check valve 50 shown in FIG. 9 is a so-called ball-type check valve. Specifically, the check valve 50 shown in FIG. 9 has a ball valve 51 and a valve seat 52. The valve seat 52 is located downstream of the flavor source 20 and is configured to separate a space accommodating the flavor source 20 and the susceptor 23 from a space 53 accommodating the ball valve 51. The ball valve 51 is disposed in the space within the container 12 between the valve seat 52 and the upper wall 12c, i.e., in the space 53, and is configured to be able to open and close an opening formed in the valve seat 52. The edge forming the opening formed in the valve seat 52 may be inclined to match the ball valve 51. This allows the ball valve 51 to more reliably close the opening of the valve seat 52. Specifically, as shown in FIG. 2, when the flavor-generating article 10 is housed in the flavor inhaler 100 and the user inhales through the mouthpiece 130, the ball valve 51 moves away from the valve seat 52 due to air passing through the container 12, opening the check valve 50; when the user is not inhaling, the ball valve 51 comes into contact with the valve seat 52, closing the check valve 50.

10 is a plan view showing another example of a check valve 50 used in the flavor generating article 10. The check valve 50 shown in FIG. 10 is a so-called flap-type check valve. Specifically, the check valve 50 has a base 54 having an opening or notch 54c, and a flap portion 55 provided on the downstream side of the base 54 so as to cover the opening or notch 54c. In this case, the flap portion 55 covers the opening or notch 54c, thereby suppressing leakage of steam or aerosol downstream. The check valve 50 shown in FIG. 10 is arranged such that the base 54 is located downstream of the flavor source 20, similar to the check valve 50 shown in FIG. 9, and separates the space that houses the flavor source 20 and the susceptor 23 from the space 53 that houses the flap portion 55. The diameter (maximum length) of the opening or notch 54c can be 1 mm or more and 4 mm or less.

The base 54 has a first portion 54a and a second portion 54b spaced apart from the first portion 54a. The first portion 54a and the second portion 54b may be located on the same plane. Both ends of the flap portion 55 may be fixed to the first portion 54a and the second portion 54b of the base 54, respectively. In this case, it is preferable that the length between both ends of the flap portion 55 is longer than the distance between the first portion 54a and the second portion 54b of the base 54. As a result, the flap portion 55 is fixed to the base 54 so as to bend or flex, so that a part of the flap portion 55 is spaced apart from the base 54, and the user can inhale the vapor or aerosol from the gap between the flap portion 55 and the base 54.

In the example shown in FIG. 10, the flap portion 55 has a generally rectangular planar shape overall, and both ends thereof are fixed to the first portion 54a and the second portion over their entire length with an adhesive or the like.

The flap portion 55 may include a first flap member 55a and a second flap member 55b. In this case, it is preferable that one end of each of the first flap member 55a and the second flap member 55b is fixed to the base 54, and the other end of each of the first flap member 55a and the second flap member 55b is fixed to each other. This allows the first flap member 55a and the second flap member 55b to be overlapped and fixed. Due to the weight of this overlapping portion, the opening and closing action of the flap portion 55 becomes good (it does not open easily). Therefore, by using the first flap member 55a and the second flap member 55b, it is possible to easily form a flap portion 55 with such a good opening and closing action. Note that the other ends of each of the first flap member 55a and the second flap member 55b do not have to be fixed to each other. In this case, the other ends of each of the first flap member 55a and the second flap member 55b overlap without being adhered to each other.

Furthermore, it is preferable that the length of the first flap member 55a and the length of the second flap member 55b are substantially equal. In this case, the distances from each of the two ends of the flap portion 55 to the overlapping portions of the first flap member 55a and the second flap member 55b are equal, making it more desirable to open and close the flaps, and more specifically, making it easier to adjust the function of suppressing the pressure of the vapor or aerosol. The length of the first flap member 55a or the second flap member 55b, i.e., the length between one end and the other end of the first flap member 55a or the second flap member 55b, may be, for example, 1 mm or more and 10 mm or less.

The first flap member 55a and the second flap member 55b may be fixed to overlap each other at the other end. In this case, it is preferable that the ratio of the length of the overlapping portion of the first flap member and the second flap member to the length between one end and the other end of the first flap member 55a or the second flap member 55b is 0 or more and 0.4 or less. This makes it possible to increase the weight of the central portion of the flap portion 55 by overlapping the first flap member 55a and the second flap member 55b while maintaining the flexibility of the entire flap portion 55, making it more desirable to open and close the flap portion 55. Specifically, when the flap portion 55 opens while suppressing the pressure of the steam or aerosol, it can operate smoothly. The length of the overlapping portion of the first flap member 55a and the second flap member 55b may be, for example, 0 mm or more and 2 mm or less. Additionally, the ratio of the length of the overlapping portion of the first flap member 55a and the second flap member 55b to the diameter (maximum length) of the opening or notch 54c can be greater than or equal to 0 and less than or equal to 1.

When using a flavor generating article 10 having a check valve 50 as shown in FIG. 9 or FIG. 10, in the flavor inhaler 100 shown in FIG. 2, it is preferable that the airflow resistance downstream of the flavor source 20 is greater than the airflow resistance upstream of the flavor source 20. In this case, when the flavor source 20 is heated while the user is not smoking, the vapor or aerosol generated in the flavor source 20 can be prevented from moving downstream.

11 is a schematic side cross-sectional view of a flavor generating article 10 according to another embodiment. The flavor generating article 10 shown in FIG. 11 has a flavor source 20 and a container 12 that contains the flavor source 20. As shown in the figure, the container 12 has a first cylindrical body 60 having a first bottom wall 61 and a first side wall 62, and a second cylindrical body 70 having a second bottom wall 71 and a second side wall 72. The first cylindrical body 60 is inserted into the second cylindrical body 70 so that the first side wall 62 abuts against the second bottom wall 71. In this case, as shown in the figure, an air layer A1 can be easily provided between the first side wall 62 and the second side wall 72, so that the heat of the container 12 can be prevented from being transferred to the outside of the flavor generating article 10. The flavor generating article 10 may further have a susceptor 23 (corresponding to an example of a heat source) contained in the container 12.

As shown, the first bottom wall 61 of the first cylindrical body 60 is provided at one end of the first side wall 62, and a first opening 63 is formed at the other end of the first cylindrical body 60. Both ends of the first cylindrical body 60 may be closed, so that the first cylindrical body 60 has a closed space. As shown, the second bottom wall 71 of the second cylindrical body 70 is provided at one end of the second side wall 72, and a second opening 73 is formed at the other end of the second cylindrical body 70. Both ends of the second cylindrical body 70 may be closed, but it is preferable to have a second opening 73 for inserting the first cylindrical body 60.

As shown, a filling member 22a is disposed upstream of the flavor source 20 and the susceptor 23. A filling member 22b is disposed upstream of the flavor source 20 and the susceptor 23. In the illustrated example, the filling members 22a and 22b are made of the same material as the flavor source 20, and may be, for example, tobacco granules. To hold the susceptor 23 in an appropriate position in the longitudinal direction of the container 12, a rib may be formed on the second bottom wall 71 to support one longitudinal end of the susceptor 23.

It is preferable that an air flow path is formed between the first side wall 62 and the second side wall 72. In this case, an air layer A1 (air flow path) is formed outside the first side wall 62 of the container 12, which can further prevent the heat of the container 12 from being transferred to the outside of the flavor-generating article 10. In the illustrated example, the second opening 73 of the second cylindrical body 70 functions as the air inlet 13, and the air layer A1 functions as the air flow path.

As shown, the second side wall 72 has at least one rib 72a on its inner surface, and the rib 72a preferably abuts against the outer surface of the first side wall 62. In this case, the rib 72a can form a gap (air layer A1) of a certain width between the first side wall 62 and the second side wall 72. In this embodiment, the rib 72a extends along the longitudinal direction on the inner surface of the second side wall 72. Also, in this embodiment, multiple ribs 72a are arranged circumferentially spaced apart on the inner surface of the second side wall. The multiple ribs 72a are preferably arranged at equal intervals along the circumferential direction on the inner surface of the second side wall.

As shown in the figure, the first side wall 62 preferably has an opening or a notch that communicates the air flow path (air layer A1) with the inside of the first cylindrical body 60. In this case, air that has passed through the air flow path can be supplied into the container 12 through the opening or the notch. The opening or the notch may be covered by the second side wall 72 through the air flow path (air layer A1). In this case, the opening or the notch can be prevented from being exposed. In addition, the number of openings or the notches is not particularly limited, and any number of openings or notches, one or more, can be formed in the first side wall 62. When multiple openings or notches are formed in the first side wall 62, the multiple openings or notches may be arranged at equal intervals in the circumferential or longitudinal direction. In the illustrated embodiment, the first cylindrical body 60 has the opening or the notch 62a and the opening or the notch 62b, but may have only one of the opening or the notch 62a and the opening or the notch 62b.

As shown in FIG. 11, the opening or notch 62a is preferably located upstream of the susceptor 23. In this case, the air flowing into the container 12 from the opening or notch 62a passes through the susceptor 23, so that the steam or aerosol generated near the susceptor 23 can be efficiently delivered. On the other hand, the opening or notch 62b is preferably located downstream of the susceptor 23. In this case, air can be supplied through the opening or notch 62b, so that the steam or aerosol generated in the flavor source can be efficiently cooled by the air from the opening or notch. In this embodiment, the flavor generating article 10 has the susceptor 23 as a heat source, but even when the flavor generating article 10 is heated by a heat source other than the susceptor 23, the opening or notch 62a is preferably located upstream of the heat source. Also, the opening or notch 62b is preferably located downstream of the heat source.

The upstream opening or notch 62a of the susceptor 23 may be larger than the downstream opening or notch 62b. In other words, the opening area of the upstream opening or notch 62a of the susceptor 23 may be larger than the opening area of the downstream opening or notch 62b. In this case, leakage of steam or aerosol from the downstream opening or notch 62b can be suppressed. In addition, the amount of air supplied from the upstream opening or notch 62a to the flavor source 20 can be increased. On the other hand, the upstream opening or notch 62a of the susceptor 23 may be smaller than the downstream opening or notch 62b. In other words, the opening area of the upstream opening or notch 62a of the susceptor 23 may be smaller than the opening area of the downstream opening or notch 62b. In this case, the amount of air supplied from the downstream opening or notch 62b can be increased to further promote cooling of the steam or aerosol.

It is preferable that the first bottom wall 61 of the first cylindrical body 60 has a first ventilation hole 64. In this case, the first ventilation hole 64 can function as an air inlet or an air outlet of the container 12. In the example shown in FIG. 11, since the container 12 has an air inlet 13, the first ventilation hole 64 can function as an air outlet. Also, as shown in FIG. 11, the second bottom wall 71 may be configured so that air does not pass through. As a result, when the first bottom wall 61 has the first ventilation hole 64, the first side wall 62 has an opening or notch 62a, and an air flow path (air layer A1) is formed between the first side wall 62 and the second side wall 72, the air that flows into the container 12 through the air flow path (air layer A1) and the opening or notch 62a can flow out of the container 12 from the first ventilation hole 64. That is, the flavor-generating article 10 can have a so-called counterflow type flow path. Therefore, in the example shown in FIG. 11, the air inlet 13 and the first vent 64 that functions as an air outlet are formed on the same side of the container 12.

12 is a schematic cross-sectional side view of a flavor generating article 10 according to another embodiment. The flavor generating article 10 shown in FIG. 12 differs from the flavor generating article 10 shown in FIG. 11 in that the second bottom wall 71 of the second cylindrical body 70 has a second vent 74. In this case, the second vent 74 can function as an air inlet or an air outlet of the container 12. In the example shown in FIG. 12, since the first bottom wall 61 has the first vent 64 functioning as an air inlet, the second vent 74 can function as an air outlet. Also, in the example shown in FIG. 12, the first vent 64 functioning as an air inlet and the air inlet 13 are formed on the same side of the container 12. In this case, when air is supplied from the bottom side of the flavor inhaler 100, air can be easily supplied to the air inlet 13 and the first vent 64.

Furthermore, the flavor generating article 10 shown in FIG. 12 differs from the flavor generating article 10 shown in FIG. 11 in that it has non-tobacco particles 80 as a filling member 22b upstream of the flavor source 20 in the container 12. In this case, the non-tobacco particles 80 can prevent the vapor or aerosol generated in the flavor source 20 from leaking upstream when the flavor source 20 is heated while the user is not smoking, while allowing the gaps in the non-tobacco particles 80 to function as air flow paths when the user is smoking. Instead of or in addition to the non-tobacco particles 80, tobacco particles or particles of an aerosol generating substance may be filled upstream of the flavor source 20.

The first cylindrical body 60 of the flavor generating article 10 shown in FIG. 12 has a connection portion 65 between the first bottom wall 61 and the first side wall 62, the diameter of which decreases from the first side wall 62 toward the first bottom wall 61. By having the connection portion 65 in the container 12, air from the first air vent 64 can pass through the connection portion 65 and be diffused in the width direction, so that air can be supplied to a wider range of the flavor source 20. When the container 12 contains a susceptor 23 as shown in FIG. 12, the susceptor 23 may abut against the connection portion 65. In this case, the connection portion 65 can hold the susceptor 23 at an appropriate position in the longitudinal direction of the container 12.

FIG. 13 is a schematic cross-sectional side view of a flavor generating article 10 according to another embodiment. The flavor generating article 10 shown in FIG. 13 differs from the flavor generating article 10 shown in FIG. 11 in that the container 12 has a heat source insertion chamber 82 that is isolated from the space that contains the flavor source 20. In this case, the heat source 110 can be inserted into the heat source insertion chamber 82 to heat the flavor source 20 without destroying the container of the flavor source 20. Note that for ease of explanation, the heat source 110 is illustrated in FIG. 13.

In the illustrated example, the first cylindrical body 60 has a cylindrical portion 66 extending longitudinally from the first bottom wall 61 inside the first side wall 62. The cylindrical portion 66 and the first bottom wall 61 define a heating source insertion chamber 82. The cylindrical portion 66 divides the inside of the container 12 so that the flavor source 20 in the container 12 does not enter the heating source insertion chamber 82. In addition, the cylindrical portion 66 is preferably not breathable so that the steam or aerosol generated by the flavor source 20 does not enter the heating source insertion chamber 82. The cylindrical portion 66 penetrates the second bottom wall 71 of the second cylindrical body 70. Specifically, the second bottom wall 71 of the second cylindrical body 70 has an opening 71a through which the cylindrical portion 66 passes, and the cylindrical portion 66 fits into the opening 71a so that there is substantially no gap.

The heating source 110 may be, for example, an antenna for generating microwaves. Specifically, the heating source 110 may be configured to radiate microwaves to the flavor source 20 when inserted into the heating source insertion chamber 82. In this case, the cylindrical portion 66 is preferably formed of a material with a low dielectric constant that does not easily absorb microwaves. The heating source 110 may be a resistive heating type pin-type or blade-type heater. In this case, the cylindrical portion 66 is preferably formed of a material with good thermal conductivity, such as a metal, in order to efficiently transfer heat from the heating source 110 to the flavor source 20.

The manufacturing method of the flavor generating article 10 shown in Figs. 11 to 13 will be described. The manufacturing method of these flavor generating articles 10 includes arranging the flavor source 20 inside the first cylindrical body 60, and inserting the first cylindrical body 60 into the second cylindrical body 70 so that the first side wall 62 of the first cylindrical body 60 in which the flavor source 20 is arranged abuts against the second bottom wall 71 of the second cylindrical body 70. This makes it possible to easily manufacture a flavor generating article having an air layer between the first side wall 62 and the second side wall 72. The first cylindrical body 60 and the second cylindrical body 70 may be bonded to each other, for example, with an adhesive, or may be fixed to each other by mechanical means such as a snap fit. When a susceptor 23 is accommodated inside the container 12 of the flavor generating article 10, the susceptor 23 may be arranged inside the first cylindrical body 60 before arranging the flavor source 20 inside the first cylindrical body 60.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications are possible within the scope of the claims and the technical ideas described in the specification and drawings. Furthermore, any shape or material not directly described in the specification and drawings is within the scope of the technical ideas of the present invention as long as it provides the functions and effects of the present invention.

Some aspects disclosed in the present specification are described below.
(1)
A flavor source;
a container containing the flavor source;
a filling member located at least one of upstream and downstream of the flavor source and provided in an air flow path within the container.
(2)
In the flavor generating article according to (1),
The flavor generating article, wherein the filling member comprises a particulate filling member.
(3)
In the flavor generating article according to (2),
The flavor generating article, wherein the granular filling member comprises at least one selected from the group consisting of calcium carbonate, cellulose, tobacco granules, glycerin, and flavor additives.
(4)
In the flavor generating article according to (3),
The particulate filling member and the flavor source comprise tobacco granules.
(5)
In the flavor generating article according to any one of (2) to (4),
the particulate filler member is located downstream of the flavor source;
The container has an air inlet located upstream of the flavor source, an air outlet located downstream of the granular filling member, and an air vent in communication with the granular filling member.
(6)
In the flavor generating article according to any one of (2) to (5),
The particulate filling member includes an upstream particulate filling member located upstream of the flavor source, and a downstream particulate filling member located downstream of the flavor source.
(7)
In the flavor generating article according to (6),
A flavor generating article, wherein the upstream particulate filling member comprises a different material than the downstream particulate filling member.
(8)
In the flavor generating article according to any one of (2) to (7),
A flavor generating article, wherein the average particle size of the granular filling member is 0.1 mm or more and 3 mm or less.
(9)
In the flavor generating article according to any one of (2) to (8),
The flavor generating article has a breathable partition member between the granular filling member and the flavor source.
(10)
In the flavor generating article according to any one of (1) to (9),
A flavor generating article having a susceptor disposed within said flavor source.
(11)
A flavor generating article according to any one of (1) to (10),
A smoking system comprising: a flavor inhaler having a heat source for heating the flavor generating article.
(12)
In the smoking system according to (11),
The flavor inhaler has a chamber for receiving the flavor generating article,
the heat source is configured to be inserted into the container of the flavor generating article when the flavor generating article is contained in the chamber;
A smoking system in which, when the flavor generating article is contained in the chamber, the airflow resistance downstream of the flavor source is R1 and the airflow resistance upstream of the flavor source is R2, such that R1 > R2.
(13)
In the smoking system described in (11) which cites (10),
The flavor inhaler has a chamber for receiving the flavor generating article,
A smoking system in which, when the flavor generating article is contained in the chamber, the airflow resistance downstream of the susceptor is R3 and the airflow resistance upstream of the susceptor is R4, such that R3>R4.
(14)
In the smoking system according to any one of (11) to (13),
the flavor inhaler has an air flow path communicating with an air inlet of the container of the flavor generating article;
The air flow passage passes through an exterior sidewall of the container and communicates with the air inlet.
(15)
A flavor source;
a container containing the flavor source;
a flow path deflection portion disposed downstream of the flavor source and configured to deflect an air flow path passing through the container.
(16)
In the flavor generating article according to (15),
The flavor generating article, wherein the flow path curved portion includes at least one member selected from the group consisting of a spiral flow path body, a spiral flow path body, and a gas-impermeable plate-like member.
(17)
In the flavor generating article according to (16),
The spiral flow path body has an upper member, a lower member, and a spiral member located therebetween,
The flavor generating article wherein air flowing in from the lower member moves along the spiral member and flows out from the upper member.
(18)
In the flavor generating article according to (17),
The flavor generating article, wherein the lower member has a gas permeable member and a gas impermeable member provided on the surface of the gas permeable member.
(19)
In the flavor generating article according to (18),
The flavor-generating article, wherein the gas impermeable member is disposed on at least one surface of the gas permeable member so as not to overlap an outer edge of the gas permeable member.
(20)
In the flavor generating article according to (19),
A flavor generating article, wherein a center of the gas impermeable member and a center of the gas permeable member are substantially coincident.
(21)
In the flavor generating article according to any one of (17) to (20),
The flavor generating article, wherein the spiral member is integrally formed with the upper member or the lower member.
(22)
In the flavor generating article according to any one of (17) to (21),
The flavor generating article, wherein the spiral flow path body is positioned so as to close the opening of the container.
(23)
In the flavor generating article according to any one of (17) to (22),
the spiral flow path body has a spiral flow path defined by the upper member, the lower member, and the spiral member;
The spiral flow passage has an air inlet and an air outlet,
The spiral flow passage body has an air vent communicating with the spiral flow passage between the air inlet and the air outlet.
(24)
In the flavor generating article according to any one of (16) to (22),
The spiral flow path body has at least one spiral flow path having an air inlet and an air outlet,
The spiral flow path extends in a longitudinal direction of the flavor generating article,
The flavor generating article, wherein the air inlet and the air outlet are positioned so as not to overlap when viewed in the longitudinal direction of the flavor generating article.
(25)
In the flavor generating article according to any one of (16) to (22),
The plate-like member is disposed so as to extend in a direction intersecting with a longitudinal direction of the flavor generating article.
(26)
In the flavor generating article according to (15),
the container has a wall defining an interior space;
The flow path curvature includes a groove or a roughened surface formed on the inner surface of the wall.
(27)
In the flavor generating article according to any one of (15) to (26),
The flow path curved portion is disposed outside the container, the flavor generating article.
(28)
A flavor source;
a container containing the flavor source;
a check valve located downstream of the flavor source and configured to permit gas transfer from the flavor source to an exterior of the container.
(29)
In the flavor generating article according to (28),
The flavor generating article, wherein the check valve comprises a ball-type check valve or a flap-type check valve.
(30)
In the flavor generating article according to (29),
The check valve includes a flap-type check valve,
The flap-type check valve is a flavor-generating article having a base having an opening or a notch, and a flap portion provided on the downstream side of the base so as to cover the opening or the notch.
(31)
In the flavor generating article according to (30),
each of the ends of the flap portion is secured to a first portion and a second portion of the base;
A flavor generating article, wherein the length between the ends of the flap portion is greater than the distance between the first and second portions of the base.
(32)
In the flavor generating article according to (30) or (31),
The flap portion includes a first flap member and a second flap member,
one end of each of the first flap member and the second flap member is fixed to the base;
The other ends of the first flap member and the second flap member are secured to each other.
(33)
In the flavor generating article according to (32),
A flavor generating article, wherein a length of the first flap member and a length of the second flap member are substantially equal.
(34)
In the flavor generating article according to (32) or (33),
The first flap member and the second flap member are fixed to overlap each other at the other end,
A flavor generating article, in which the ratio of the length of the overlapping portion of the first flap member and the second flap member to the length between the one end and the other end of the first flap member or the second flap member is greater than or equal to 0 and less than 0.4.
(35)
A smoking system having a flavor generating article according to any one of (28) to (34) and a flavor inhaler,
the flavor generating article having an air inlet and an air outlet;
The flavor inhaler has an intake port communicating with the air inlet and an exhaust port communicating with the air outlet,
A smoking system, wherein the airflow resistance downstream of the flavor source is greater than the airflow resistance upstream of the flavor source.
(36)
A flavor source;
a container containing the flavor source and having an air inlet and an air outlet;
a nozzle in communication with the air outlet of the container;
The flavor generating article, wherein the inner diameter of the nozzle is smaller than the inner diameter of the container.
(37)
In the flavor generating article according to (36),
The length of the nozzle is 3 mm or more and 10 mm or less.
(38)
(36) or (37) A flavor generating article,
The flavor generating article has a vent in communication with the interior of said container.
(39)
In the flavor generating article according to any one of (36) to (38),
A flavor generating article, wherein a diameter of the air outlet of the container and an inner diameter of the nozzle are substantially equal.
(40)
In the flavor generating article according to any one of (36) to (39),
A flavor generating article having a mesh or filter covering the air outlet of the container.
(41)
In the flavor generating article according to any one of (36) to (40),
the container has a plurality of said air outlets;
A flavor generating article, wherein all of said plurality of air outlets are in communication with said nozzle.
(42)
A flavor generating article according to any one of (36) to (41),
A smoking system comprising: a flavor inhaler having a chamber for containing the flavor generating article; and a mouthpiece.
(43)
In the smoking system according to (42),
A smoking system, wherein the ratio of the length of the nozzle to the distance from the tip of the nozzle to the opening of the mouthpiece of the flavor inhaler is from 10:0 to 3:7.
(44)
In the smoking system according to (42) or (43),
The flavor inhaler has an air supply port radially adjacent to the nozzle, which supplies air to a gap between the mouthpiece and the nozzle.
(45)
In the smoking system according to (44),
A smoking system, wherein a groove portion that defines at least a portion of the air supply port is formed on at least one of a surface of the mouthpiece facing the container and a surface of the container facing the mouthpiece.
(46)
In the smoking system according to any one of (42) to (45),
A smoking system, wherein the container extends in the extension direction of the nozzle and has a guide portion positioned between the mouthpiece and the nozzle.
(47)
In the smoking system described in (46) which cites (44),
A smoking system, wherein the guide portion is configured to guide air supplied from the air supply port toward the opening of the mouthpiece.
(48)
In the smoking system according to any one of (42) to (47),
A smoking system, wherein the nozzle includes a portion whose outer diameter increases from the nozzle opening towards the air outlet of the container.
(49)
In the smoking system according to any one of (42) to (48),
the flavor inhaler has an air flow path in communication with the air inlet of the container of the flavor generating article;
The air flow passage passes through an exterior sidewall of the container and communicates with the air inlet.
(50)
A flavor source;
a container for containing the flavor source;
the container has a first cylindrical body having a first bottom wall and a first side wall, and a second cylindrical body having a second bottom wall and a second side wall;
A flavor-generating article, wherein the first cylindrical body is inserted into the second cylindrical body so that the first side wall abuts the second bottom wall.
(51)
In the flavor generating article according to (50),
An air flow passage is formed between the first side wall and the second side wall.
(52)
In the flavor generating article according to (51),
The first side wall has an opening or a notch that communicates the air flow path with the inside of the first cylindrical body.
(53)
In the flavor generating article according to (52),
a heat source disposed within the vessel;
The flavor generating article, wherein the opening or notch is located upstream of the heat source.
(54)
In the flavor generating article according to (52),
a heat source disposed within the vessel;
The flavor generating article, wherein the opening or notch is located downstream from the heat source.
(55)
In the flavor generating article according to (52),
a heat source disposed within the vessel;
the first side wall has the opening or the notch upstream and downstream of the heat source,
The flavor generating article wherein the upstream opening or cutout is larger than the downstream opening or cutout.
(56)
In the flavor generating article according to (52),
a heat source disposed within the vessel;
the first side wall has the opening or the notch upstream and downstream of the heat source,
The flavor generating article, wherein the upstream opening or cutout is smaller than the downstream opening or cutout.
(57)
In the flavor generating article according to any one of (50) to (56),
The second side wall has at least one rib on an inner surface thereof, the rib abutting an outer surface of the first side wall.
(58)
In the flavor generating article according to any one of (50) to (57),
The flavor generating article, wherein the first bottom wall has a vent hole.
(59)
In the flavor generating article according to any one of (50) to (58),
The second bottom wall is configured to be air impermeable.
(60)
In the flavor generating article according to any one of (50) to (59),
The second bottom wall has a vent hole.
(61)
In the flavor generating article according to any one of (50) to (60),
A flavor generating article having non-tobacco particles within said container upstream of said flavor source.
(62)
In the flavor generating article according to any one of (50) to (61),
The container has a chamber for inserting a heat source separated from a space containing the flavor source.
(63)
In the flavor generating article according to any one of (50) to (62),
A flavor generating article having a susceptor housed in the container.
(64)
A flavor source is disposed inside the first cylindrical body;
A method for manufacturing a flavor-generating article, comprising: inserting the first cylindrical body into the second cylindrical body so that a first side wall of the first cylindrical body in which the flavor source is disposed abuts a second bottom wall of the second cylindrical body.

10: Flavor-generating article 12: Container 12a: Side wall 12b: Bottom wall 13: Air inlet 14: Air outlet 15: Vent 20: Flavor source 22, 22a, 22b: Filling member 23: Susceptor 26a, 26b: Partition member 28: Nozzle 28a: Part 29: Guide portion 31: Plate-like member 32: Spiral flow path body 33: Upper member 33a: Air outlet 34: Lower member 34a: Air inlet 34b: Gas-permeable member 34c: Gas-impermeable member 35: Spiral member 36: Spiral flow path 40: Spiral flow path body 42: Spiral flow path 42a: Air inlet 42b: Air outlet 50: Check valve 53: Space 54: Base body 54a: First portion 54b : Second portion 54c : Opening or notch 55 : Flap portion 55a : First flap member 55b : Second flap member 60 : First cylindrical body 61 : First bottom wall 62 : First side wall 62a : Opening or notch 62b : Notch 64 : First ventilation port 70 : Second cylindrical body 71 : Second bottom wall 71a : Opening 72 : Second side wall 72a : Rib 74 : Second ventilation port 80 : Non-tobacco particles 82 : Chamber for inserting heating source 100 : Flavor inhaler 110 : Heating source 110a : Intake port 120 : Chamber 130 : Mouthpiece 130a : Air flow path 130b : Exhaust port 200 : Smoking system A1 : Air layer

Claims (14)

A flavor source;
a container containing the flavor source and having an air inlet and an air outlet;
a nozzle in communication with the air outlet of the container;
The flavor generating article, wherein the inner diameter of the nozzle is smaller than the inner diameter of the container. The flavor generating article according to claim 1,
The length of the nozzle is 3 mm or more and 10 mm or less. 3. The flavor generating article according to claim 1 or 2,
The flavor generating article has a vent in communication with the interior of said container. The flavor generating article according to any one of claims 1 to 3,
A flavor generating article, wherein a diameter of the air outlet of the container and an inner diameter of the nozzle are substantially equal. The flavor generating article according to any one of claims 1 to 4,
A flavor generating article having a mesh or filter covering the air outlet of the container. The flavor generating article according to any one of claims 1 to 5,
the container has a plurality of said air outlets;
A flavor generating article, wherein all of said plurality of air outlets are in communication with said nozzle. A flavor generating article according to any one of claims 1 to 6,
A smoking system comprising: a flavor inhaler having a chamber for containing the flavor generating article; and a mouthpiece. 8. The smoking system according to claim 7,
A smoking system, wherein the ratio of the length of the nozzle to the distance from the tip of the nozzle to the opening of the mouthpiece of the flavor inhaler is from 10:0 to 3:7. 9. A smoking system according to claim 7 or 8,
The flavor inhaler has an air supply port radially adjacent to the nozzle, which supplies air to a gap between the mouthpiece and the nozzle. 10. The smoking system according to claim 9,
A smoking system, wherein a groove portion that defines at least a portion of the air supply port is formed on at least one of a surface of the mouthpiece facing the container and a surface of the container facing the mouthpiece. A smoking system according to any one of claims 7 to 10,
A smoking system, wherein the container extends in the extension direction of the nozzle and has a guide portion positioned between the mouthpiece and the nozzle. A smoking system according to claim 11, which is derived from claim 9,
A smoking system, wherein the guide portion is configured to guide air supplied from the air supply port toward the opening of the mouthpiece. A smoking system according to any one of claims 7 to 12,
A smoking system, wherein the nozzle includes a portion whose outer diameter increases from the nozzle opening towards the air outlet of the container. A smoking system according to any one of claims 7 to 13,
the flavor inhaler has an air flow path in communication with the air inlet of the container of the flavor generating article;
The air flow passage passes through an exterior sidewall of the container and communicates with the air inlet.