HK1260508B - Flavor inhaler - Google Patents

Description

Aroma inhaler

Technical Field

The present invention relates to a fragrance inhaler capable of sucking fragrance from a mouthpiece end.

Background Art

For example, in the following patent documents 1 to 3, paper is used as the outer cover to make the touch and appearance of the flavor inhaler similar to that of a cigarette. The following patent documents 4 and 5 disclose the internal structure of the flavor inhaler.

Prior art literature

Patent Literature

Patent Document 1: U.S. Patent Application Publication No. 2013/0284190

Patent Document 2: U.S. Patent Application Publication No. 2014/0246032

Patent Document 3: U.S. Patent Application Publication No. 2014/0196735

Patent Document 4: International Publication No. 2015/120636

Patent Document 5: International Publication No. 2015/120586

Summary of the Invention

Technical problem to be solved by the invention

Typical flavor inhalers are heavier than cigarettes. Therefore, when a user uses a flavor inhaler, their fingers are subjected to a significant load. Consequently, the user must exert increased force to grasp the inhaler, making it inconvenient. Furthermore, such flavor inhalers present a poor sense of balance and stability when grasped, making it difficult to smoke while holding the mouthpiece in the mouth.

An object of the present invention is to provide a flavor inhaler that provides a good sense of balance and stability when grasping the flavor inhaler and enables a proper inhalation action.

Technical solutions to solve problems

The fragrance inhaler of one embodiment of the present invention extends from the mouthpiece end to the front end in a rod-like or cylindrical shape. The fragrance inhaler has a weight concentration portion. The weight concentration portion is located in a portion away from the mouthpiece end, and is arranged at a portion closer to the mouthpiece end than the middle position between the mouthpiece end and the front end, accounting for at least about half of the total weight, or is arranged in a portion near the mouthpiece end and a portion near the front end, and the total weight of the weight of the portion near the mouthpiece end and the weight of the portion near the front end added together accounts for at least about half of the total weight. The value of (length from the mouthpiece end to the center of gravity)/(total length specified by the length from the mouthpiece end to the front end) is within the range of greater than 0.20 and less than 0.45.

Effects of the Invention

According to the present invention, it is possible to provide a flavor inhaler that provides a good sense of balance and stability when grasping the flavor inhaler and enables a proper inhalation action.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a cross-sectional view showing the flavor inhaler according to the first embodiment cut along a plane including the central axis.

FIG2 is a cross-sectional view showing the flavor inhaler according to the second embodiment cut along a plane including the central axis.

FIG3 is a cross-sectional view showing the flavor inhaler according to the third embodiment, taken along a plane including the central axis.

FIG4 is a cross-sectional view showing the flavor inhaler according to the fourth embodiment, taken along a plane including the central axis.

FIG5 is a cross-sectional view of the flavor inhaler according to the fifth embodiment, taken along a plane including the central axis.

FIG6 is a cross-sectional view showing the flavor inhaler according to the sixth embodiment, taken along a plane including the central axis.

FIG7 is a cross-sectional view of the flavor inhaler according to the seventh embodiment, taken along a plane including the central axis.

FIG8 is a cross-sectional view of the flavor inhaler according to the eighth embodiment, taken along a plane including the central axis.

FIG9 is a cross-sectional view of the flavor inhaler according to the ninth embodiment, taken along a plane including the central axis.

FIG10 is a cross-sectional view of the flavor inhaler according to the tenth embodiment, taken along a plane including the central axis.

FIG11 is a cross-sectional view showing the flavor inhaler according to the eleventh embodiment, taken along a plane intersecting the central axis.

FIG. 12 is a table showing conditions of flavor inhalers of Examples, Comparative Examples, and a conventional product.

FIG. 13 is a schematic diagram showing the concept of the flavor inhaler of Examples A-1 to A-6.

FIG. 14 is a schematic diagram showing the concept of the flavor inhaler of Examples B-1 to B-7.

FIG. 15 is a diagram showing the results of experience evaluation of the ease of possession of each Example, each Comparative Example, and conventional product in the table shown in FIG. 12 .

FIG. 16 is a diagram showing the relationship between the experience evaluation results shown in FIG. 15 and the torque.

FIG. 17 is a diagram showing the relationship between the experience evaluation results shown in FIG. 15 and the absolute value of the torque.

DETAILED DESCRIPTION

In the present invention, the flavor inhaler is implemented as a heated (non-combustion) flavor inhaler, for example, by heating a liquid supplied from an aerosol source to generate an aerosol, through which the user can inhale the flavor of tobacco, etc. Alternatively, the flavor inhaler can be implemented as a so-called non-heated flavor inhaler, in which an aerosol or vapor is generated without heating the liquid supplied from the aerosol source, and in which the user can inhale the flavor of tobacco, etc., through the aerosol, etc. Alternatively, the flavor inhaler can be implemented as a heated/non-heated flavor inhaler, in which the aerosol source does not contain the flavor of tobacco, and the user can inhale the flavor of mint, menthol, etc.

[First embodiment]

Hereinafter, a first embodiment of the flavor inhaler will be described with reference to the accompanying drawings. The first to eleventh embodiments shown below are flavor inhalers 11 that include an aerosol source, a heat source that generates aerosol by heating a liquid supplied from the aerosol source, and a power source that supplies electricity to the heat source. Furthermore, the total weight, various weights, position of the center of gravity, and torque of the flavor inhaler 11 mentioned in this application are measured and calculated in a state before use. The state before use refers to, for example, a state in which the flavor inhaler 11 is usable after the lid is removed if the lid has been removed, and the aerosol source has not been used once and is filled with liquid.

As shown in Figure 1, the flavor inhaler 11 is formed into a rod or cylindrical shape extending from a mouthpiece end 13A to a front end 14. The flavor inhaler 11 comprises a cylindrical housing 12, which forms an outer shell; a cylindrical mouthpiece 13; a front end 14 located opposite the mouthpiece end 13A of the mouthpiece 13; a battery 15 housed within the housing 12; an aerosol source 16 housed within the housing 12; a core 17 connected to the aerosol source 16; a heater 18 made of a resistive metal material wound around the core 17; wiring 21 connecting the heater 18 to the battery 15; an air intake port 22 provided in the housing 12; a cylindrical air flow path 23 located in the center of the housing 12; and a drive circuit 24 for controlling the power supply to the heater 18. The total length referred to below is defined by the length from the mouthpiece end 13A to the front end 14 of the flavor inhaler 11. The central axis C extends from the mouthpiece end 13A to the front end 14 of the flavor inhaler 11. The core 17 is formed by bundling a plurality of glass fibers (fibers), and the capillary force acting between the glass fibers can supply the liquid in the aerosol source 16 to the position of the heater 18 (suction).

The suction nozzle 13 is formed of a metal material such as stainless steel or brass. The housing 12 is formed into a cylindrical shape from a resin material, for example. The housing 12 has a first portion 12A located on the side of the suction nozzle end 13A and a second portion 12B located on the side of the front end 14. The first portion 12A is formed of the same metal material as the suction nozzle 13. The second portion 12B is formed of a resin material with a low specific gravity. As the resin material, for example, polycarbonate, polyacetal, polypropylene, fluorine-based resin (Teflon (registered trademark)) and the like can be used. The battery 15 constitutes the power source of the fragrance inhaler 11. The battery 15 is composed of, for example, a cylindrical lithium battery, or other batteries. The battery 15 can also be a rechargeable battery that can be used repeatedly.

The aerosol source 16 is formed by infiltrating a liquid such as propylene glycol or glycerin containing tobacco flavor and menthol flavor into an absorbent body such as cotton wool or a porous body other than this. The aerosol source 16 can also be formed by enclosing propylene glycol or glycerin containing tobacco flavor and menthol flavor in a sealable small solution tank. The aerosol source 16 can also contain no tobacco flavor and only enclose flavors such as menthol. At least one intake hole 22 is formed at a certain interval along the circumferential direction of the shell 12. In addition, in the present embodiment, the intake hole 22 is composed of a plurality of holes, but a single intake hole 22 can also be formed. Each intake hole 22 is composed of a small circular hole arranged in a manner to penetrate the shell 12. The heater 18 constitutes a heat source for heating the liquid supplied from the aerosol source 16 to generate an aerosol.

In this embodiment, the mouthpiece 13 and first portion 12A, formed of a metal material, constitute a first weight-concentrated portion 25. The first weight-concentrated portion 25 is located away from the mouthpiece end 13A, closer to the mouthpiece end 13A than the intermediate position 26 between the mouthpiece end 13A and the front end 14. More specifically, the first weight-concentrated portion 25 is located within a range where the ratio of (length from the mouthpiece end 13A)/(total length) is between 0.15 and 0.45. The first weight-concentrated portion 25 accounts for at least approximately half of the total weight of the flavor inhaler 11. More specifically, the first weight-concentrated portion 25 is located within a range where the ratio of (length from the mouthpiece end 13A)/(total length) is between 0.15 and 0.45, and accounts for at least 45% of the total weight. More preferably, the first weight-concentrated portion 25 is located within a range where the ratio of (length from the mouthpiece end 13A)/(total length) is between 0.15 and 0.45, and accounts for at least 50% and at most 82% of the total weight.

The total weight of the flavor inhaler 11 is appropriately set within a range of 10.0 g to 20.0 g. Preferably, the total weight of the flavor inhaler 11 is within a range of 10.4 g to 15.5 g. More preferably, the total weight of the flavor inhaler 11 is within a range of 10.4 g to 13.9 g. Furthermore, the first weight concentrated portion 25 mentioned herein can be implemented by making it heavier than other portions of the flavor inhaler 11. Therefore, the presence of the first weight concentrated portion 25 does not negate the need to dispose heavier components in portions other than the first weight concentrated portion 25.

In this embodiment, the torque when the hand (fingers) grasps the portion where the value of (length from the nozzle end 13A)/(total length) is 0.3 is set as follows. In this case, the absolute value of the torque is set to, for example, 20.0 gf·cm or less. Preferably, the torque is set to an absolute value of 15.5 gf·cm or less. On the other hand, as described later, the absolute value of the torque can also be set to 11.25 gf·cm or less.

The moment M can be calculated by the following formula.

M=(total weight of the flavor inhaler 11)×{(length from the mouthpiece end 13A to the center of gravity)−(length from the mouthpiece end 13A to the gripping position)}

The center of gravity of the flavor inhaler 11 is set so that the value of (length from the mouthpiece end 13A to the center of gravity)/(total length) is within the range of 0.20 to 0.45. The center of gravity is preferably set so that the value of (length from the mouthpiece end 13A to the center of gravity)/(total length) is within the range of 0.25 to 0.44. It is further preferred that the center of gravity be set so that the value of (length from the mouthpiece end 13A to the center of gravity)/(total length) is within the range of 0.3 to 0.44.

The function of the aroma inhaler 11 will now be described. The aroma inhaler 11 is activated by pressing a switch such as a button located on the housing 12 or by a flow sensor sensing air inhaled through the mouthpiece 13. Alternatively, if the battery 15 is a rechargeable battery, the aroma inhaler 11 can be activated by a sensor located on the aroma inhaler 11 sensing that the aroma inhaler 11 has been removed from the charger.

When the flavor inhaler 11 is activated, the drive circuit 24 supplies power to the heater 18. The power supply method is arbitrary; power may be supplied to the heater 18 intermittently at regular intervals, or a constant voltage may be applied to the heater 18 after the flavor inhaler 11 is activated. Alternatively, a flow meter may be provided midway along the ventilation flow path 23 to control the power flow by increasing or decreasing it in proportion to the flow rate of gas passing through the ventilation flow path 23. Liquid supplied from the aerosol source 16 is heated by the heater 18 and mixed with air supplied from the inhalation port 22 to generate an aerosol.

When the user inhales from the mouthpiece 13, air is drawn into the housing 12 through the inhalation hole 22. This air becomes an aerosol containing a flavor (at least one of tobacco flavor and menthol flavor) as it passes through the core 17. This aerosol is taken into the user's mouth, allowing the user to enjoy the flavor (savory taste).

At this time, the user usually grasps the portion between the middle position 26 and the nozzle end 13A with his fingers. The inventor has conducted a survey of users and found that the users tend to grasp this portion.

In this embodiment, the first weight concentrated portion 25 is located near the grasped portion, and the center of gravity of the flavor inhaler 11 is also located near the grasped portion. Therefore, when the flavor inhaler 11 is grasped substantially horizontally with fingers, for example, the generation of a moment that changes the setting angle of the flavor inhaler 11 can be greatly suppressed.

According to this embodiment, the flavor inhaler 11 extends from the mouthpiece end 13A to the front end 14 in a rod-like or cylindrical shape. The weight-concentrated portion is located away from the mouthpiece end 13A and closer to the mouthpiece end 13A than the intermediate position 26 between the mouthpiece end 13A and the front end 14. The weight-concentrated portion accounts for at least approximately half of the total weight, and the ratio (length from the mouthpiece end 13A to the center of gravity)/(total length) is within the range of 0.20 to 0.45. More specifically, the weight-concentrated portion is within the range of 0.15 to 0.45 and accounts for at least 45% of the total weight. More preferably, the weight-concentrated portion is within the range of 0.15 to 0.45 and accounts for at least 50% to 82% of the total weight.

The inventors conducted a survey of users and found that during smoking, the user would grab the position near the value of (length from the mouthpiece end 13A)/(total length) of 0.3. According to the above structure, there is a weight concentration portion near the part that the user grabs, and the center of gravity of the flavor inhaler 11 is also located near the part that the user grabs. Therefore, the generation of the moment that changes the setting angle of the flavor inhaler 11 is reduced, and an easy-to-hold flavor inhaler 11 can be realized. In addition, unnecessary force applied to the user's fingers in order to maintain the posture of the flavor inhaler 11 is reduced, and a flavor inhaler 11 that is not easy to get tired can be realized.

Preferably, the absolute value of the torque applied when grasping the portion where the value of (length from the mouthpiece end)/(total length) is 0.3 is 15.5 gf·cm or less. This numerical range corresponds to Examples A-1 to A-5 described below. With this structure, the torque required to change the setting angle of the flavor inhaler 11 when grasping the flavor inhaler 11 is reduced, resulting in a flavor inhaler 11 that is easy for the user to hold and does not cause fatigue when grasping.

In the case where the absolute value of the moment when grasping the portion having a value of 0.3 for the (length from the mouthpiece end)/(total length) is below 15.5 gf·cm, it is preferred that the value of the (length from the mouthpiece end 13A to the center of gravity)/(total length) is within a range of 0.25 to 0.44. This numerical range corresponds to embodiments A-2 to A-5 described later. According to this structure, the center of gravity of the flavor inhaler 11 can be positioned such that the value of the (length from the mouthpiece end 13A)/(total length) is close to 0.3. Thus, a flavor inhaler 11 that is easy for the user to hold and not easily fatigued when grasped can be realized.

In this case, more preferably, the value of (length from the mouthpiece end 13A to the center of gravity)/(total length) is within a range of 0.3 to 0.44. This numerical range corresponds to Examples A-3 to A-5 described later. According to this structure, the center of gravity of the flavor inhaler 11 can be arranged close to a position where the value of (length from the mouthpiece end 13A)/(total length) is 0.3. Thus, a flavor inhaler 11 that is easy for the user to hold and does not fatigue when grasping can be realized.

The total weight of the flavor inhaler 11 is within a range of 10.4 g to 15.5 g. Preferably, the total weight of the flavor inhaler 11 is within a range of 10.4 g to 13.9 g. This configuration allows the weight of the flavor inhaler 11 to be within an appropriate range without being excessively heavy, allowing for a flavor inhaler 11 that is not easily fatigued even when held for extended periods of time.

At least a portion of the weight-concentrated portion is made of metal. This structure makes it easier to achieve a weight that is heavier at a location where the value of (length from the mouthpiece end 13A)/(total length) is approximately 0.3 than at other locations. This allows for a flavor inhaler 11 that is easy for the user to hold and less tiring to grasp.

According to this embodiment, the flavor inhaler 11 is a non-combustion type. According to this structure, the disadvantages caused by combustion can be avoided. Thus, the flavor inhaler 11 that can produce the user's favorite flavor without using fire can be realized.

2 to 7 , the second to seventh embodiments, which are modifications of a portion of the first embodiment, are described below with reference to FIG2 to FIG7 . In the following embodiments, the portions different from the first embodiment are mainly described, and the description of the portions common to the first embodiment is omitted.

[Second embodiment]

Referring to Figure 2 , a second embodiment of the aroma inhaler 11 will be described. In this embodiment, the mouthpiece 13 and the first portion 12A of the housing 12 are formed of a resin such as polycarbonate, polyacetal, polypropylene, or a fluorine-based resin (Teflon (registered trademark)). The wall thickness of the mouthpiece 13 is thicker than that of the first embodiment. The wall thickness of the first portion 12A is thicker than that of the first embodiment. On the other hand, the wall thickness of the second portion 12B of the housing 12 is thinner than that of the first embodiment.

In this embodiment, the thick-walled nozzle 13 and the first portion 12A constitute a first weight concentration portion 25. The first weight concentration portion 25 is located away from the nozzle end 13A and is provided at a portion closer to the nozzle end 13A than the intermediate position 26 between the nozzle end 13A and the front end 14. The first weight concentration portion 25 accounts for at least approximately half of the total weight of the flavor inhaler 11. The center of gravity of the flavor inhaler 11 is located within a range where the value of (length from the nozzle end 13A to the center of gravity)/(total length) is greater than 0.20 and less than 0.45.

According to this embodiment, the first weight concentrated portion 25 is also located near the portion that the user grasps, and the center of gravity of the flavor inhaler 11 is also located near the portion that the user grasps. Therefore, the generation of the moment that changes the setting angle of the flavor inhaler 11 is reduced, and the flavor inhaler 11 can be easily held and does not cause fatigue.

[Third embodiment]

Referring to FIG3 , a third embodiment of the aroma inhaler 11 will be described. In this embodiment, the mouthpiece 13 and the first portion 12A of the housing 12 are formed from a resin such as polycarbonate, polyacetal, polypropylene, or a fluorine-based resin (Teflon (registered trademark)). Alternatively, the mouthpiece 13 and the first portion 12A of the housing 12 may be formed from a metal such as stainless steel or brass.

The battery 15 is formed into a cylindrical shape, and a storage section 27 capable of accommodating various components is formed inside the battery 15. The battery 15 is not limited to a cylindrical shape; for example, a sheet-like battery may be bent into a cylindrical shape. Furthermore, FIG3 shows a section of the cylindrical battery 15 to illustrate the structure within the storage section 27. The storage section 27 is provided with the aerosol source 16, the core 17, the heater 18, the wiring 21, and the ventilation flow path 23. The air intake hole 22 is provided on the front end 14 side. The arrangement and shape of the air intake hole 22 are the same as those in the first embodiment.

The aerosol source 16 is arranged near the side of the mouthpiece end 13A. In the present embodiment, the mouthpiece 13, the first portion 12A, and the portion of the battery 15 on the side of the mouthpiece end 13A constitute a first weight concentration portion 25. The first weight concentration portion 25 is located in a portion away from the mouthpiece end 13A and is provided at a portion closer to the mouthpiece end 13A than the intermediate position 26 between the mouthpiece end 13A and the front end 14. The first weight concentration portion 25 accounts for at least approximately half of the total weight of the flavor inhaler 11. The center of gravity of the flavor inhaler 11 is located within a range where the value of (length from the mouthpiece end 13A to the center of gravity)/(total length) is greater than 0.20 and less than 0.45.

According to this embodiment, the first weight concentration portion 25 is also located near the portion grasped by the user, and the center of gravity of the flavor inhaler 11 is also located near the portion grasped by the user. Therefore, the generation of the moment that changes the setting angle of the flavor inhaler 11 is reduced, and the flavor inhaler 11 can be easily held.

[Fourth embodiment]

Referring to Figure 4, a fourth embodiment of the flavor inhaler 11 is described. In this embodiment, the battery 15 is formed to be smaller in length and diameter in the direction of the central axis C than the battery of the first embodiment, and is arranged on the side of the nozzle end 13A. A ventilation flow path 23 is formed in a manner passing through the side of the battery 15, and a partition wall 29 is provided between the battery 15 and the ventilation flow path 23. The aerosol source 16 is provided near the front end 14 (the front end side). The nozzle 13 and the first part 12A of the housing 12 are formed of a resin such as polycarbonate, polyacetal, polypropylene, or a fluorine-based resin (Teflon (registered trademark)). In addition, the nozzle 13 can also be formed of a metal such as stainless steel or brass.

The core 17 and heater 18 are disposed between the battery 15 and the aerosol source 16. The air intake hole 22 is disposed between the battery 15 and the aerosol source 16. The arrangement and shape of the air intake hole 22 are the same as those of the first embodiment.

In this embodiment, the battery 15 and the nozzle 13 constitute a first weight concentrated portion 25. The first weight concentrated portion 25 is located away from the nozzle end 13A and is provided closer to the nozzle end 13A than the intermediate position 26 between the nozzle end 13A and the front end 14. The first weight concentrated portion 25 accounts for at least approximately half of the total weight of the flavor inhaler 11. The center of gravity of the flavor inhaler 11 is located such that the value of (length from the nozzle end 13A to the center of gravity)/(total length) is within a range of 0.20 to 0.45.

According to this embodiment, the first weight concentration portion 25 is also located near the portion grasped by the user, and the center of gravity of the flavor inhaler 11 is also located near the portion grasped by the user. Therefore, the generation of the moment that changes the setting angle of the flavor inhaler 11 is reduced, and the flavor inhaler 11 can be easily held.

[Fifth embodiment]

Referring to Figure 5, a fifth embodiment of the flavor inhaler 11 is described. A component 28 (counterweight) for weight adjustment is provided in the first portion 12A of the housing 12. The component 28 is formed of a metal material such as stainless steel or brass. In the present embodiment, the component 28 is provided on both the inner and outer sides of the first portion 12A. The component 28 can also be provided on either the inner side of the first portion 12A or the outer side of the first portion 12A. The nozzle 13 and the first portion 12A of the housing 12 are formed of a resin such as polycarbonate, polyacetal, polypropylene, or a fluorine-based resin (Teflon (registered trademark)). In addition, the nozzle 13 can also be formed of a metal such as stainless steel or brass.

In the present embodiment, the weight adjustment component 28, the mouthpiece 13, and the aerosol source 16 constitute a first weight concentration portion 25. The first weight concentration portion 25 is located away from the mouthpiece end 13A and is disposed at a portion closer to the mouthpiece end 13A than an intermediate position 26 between the mouthpiece end 13A and the front end 14. The first weight concentration portion 25 accounts for at least approximately half of the total weight of the flavor inhaler 11. The center of gravity of the flavor inhaler 11 is located within a range where the value of (length from the mouthpiece end 13A to the center of gravity)/(total length) is greater than 0.20 and less than 0.45.

According to this embodiment, the weight-concentrated portion includes a weight-adjustable member 28. This structure makes it relatively easy to change the weight of the first weight-concentrated portion 25, simplifying the design of the flavor inhaler 11. Furthermore, according to this embodiment, the first weight-concentrated portion 25 is located near the portion where the user grasps, and the center of gravity of the flavor inhaler 11 is also located near the portion where the user grasps. This reduces the torque required to change the setting angle of the flavor inhaler 11, resulting in a flavor inhaler 11 that is easy to hold and less tiring.

[Sixth embodiment]

Referring to Figure 6, a sixth embodiment of the flavor inhaler 11 is described. In this embodiment, the housing 12 is formed longer in the axial direction (center axis C direction) compared to the housing of the first embodiment. Therefore, the battery 15 is arranged on the side close to the mouthpiece end 13A relative to the housing 12 as a whole. The mouthpiece 13 and the first part 12A of the housing 12 are formed of resins such as polycarbonate, polyacetal, polypropylene, fluorine-based resin (Teflon (registered trademark)). In addition, the mouthpiece 13 can also be formed of metals such as stainless steel and brass. Inside the housing 12, a hollow portion 31 is formed on the front end 14 side. The drive circuit 24 is formed as a disc-shaped substrate and is arranged in the hollow portion 31.

In this embodiment, the portion of the battery 15 on the side of the mouthpiece end 13A, the mouthpiece 13, and the aerosol source 16 constitute a first weight concentration portion 25. The first weight concentration portion 25 is located in a portion away from the mouthpiece end 13A and is provided at a portion closer to the mouthpiece end 13A than the intermediate position 26 between the mouthpiece end 13A and the front end 14. The first weight concentration portion 25 accounts for at least approximately half of the total weight of the flavor inhaler 11. The center of gravity of the flavor inhaler 11 is located in a range where the value of (length from the mouthpiece end 13A to the center of gravity)/(total length) is greater than 0.20 and less than 0.45.

According to this embodiment, the first weight concentrated portion 25 is also located near the portion that the user grasps, and the center of gravity of the flavor inhaler 11 is also located near the portion that the user grasps. Therefore, the generation of the moment that changes the setting angle of the flavor inhaler 11 is reduced, and the flavor inhaler 11 can be easily held and does not cause fatigue.

[Seventh embodiment]

Referring to Figure 7 , a seventh embodiment of the flavor inhaler 11 will be described. In this embodiment, the cross-sectional area of the battery 15, measured in a direction intersecting the central axis C, is smaller than that of the first embodiment. The battery 15 is arranged in parallel with the airflow path 23, the aerosol source 16, the core 17, the wiring 21, and the heater 18. The mouthpiece 13 and the first portion 12A of the housing 12 are formed of a metal such as stainless steel or brass.

In the present embodiment, the nozzle 13, the portion on the nozzle end 13A side of the battery 15, the portion on the front end 14 side of the battery 15, the aerosol source 16, the core 17 and the heater 18 constitute a second weight concentration portion 32. The second weight concentration portion 32 and the aforementioned first weight concentration portion 25 are different in relative positions in the direction of the central axis C. The second weight concentration portion 32 is composed of a portion 32A near the nozzle end and a portion 32B near the front end. The portion 32A near the nozzle end is composed of a portion in which the value of (length from the nozzle end 13A)/(total length) is within a range of greater than 0 and less than 0.2. The portion 32A near the nozzle end is composed of, for example, a metal nozzle 13 and a portion on the nozzle end 13A side of the battery 15.

Portion 32B near the tip is comprised of a portion where the ratio (length from nozzle end 13A)/(total length) is within a range of 0.9 to 1.0. Portion 32B near the tip is comprised, for example, of aerosol source 16, core 17, heater 18, and a portion of battery 15 on the tip 14 side. Portion 32A near the tip is preferably heavier than portion 32B near the tip.

The combined weight of the second weight concentrated portion 32A near the mouthpiece end and the portion 32B near the front end accounts for at least approximately half of the total weight of the flavor inhaler 11. More specifically, the combined weight of the portion of the second weight concentrated portion 32 where the value of (length from the mouthpiece end)/(total length) is within the range of 0 to 0.2 and the combined weight of the portion where the value of (length from the mouthpiece end)/(total length) is within the range of 0.9 to 1.0 accounts for at least 45% of the total weight of the flavor inhaler 11. Preferably, the weight of the second weight concentrated portion 32 accounts for at least 50% and at most 86% of the total weight of the flavor inhaler 11.

In this embodiment, the torque applied when grasping the portion where the value of (length from the nozzle end 13A)/(total length) is 0.3 is set to, for example, an absolute value of 20.0 gf·cm or less. Preferably, the absolute value of the torque is set to 14.5 gf·cm or less. Alternatively, as described later, the absolute value of the torque can be set to 11.25 gf·cm or less.

The center of gravity of the flavor inhaler 11 is set within the range of (length from the mouthpiece end 13A to the center of gravity)/(total length) being greater than or equal to 0.20 and less than or equal to 0.45. Preferably, the center of gravity is set within the range of (length from the mouthpiece end 13A to the center of gravity)/(total length) being greater than or equal to 0.25 and less than or equal to 0.44. More preferably, the center of gravity is set within the range of (length from the mouthpiece end 13A to the center of gravity)/(total length) being greater than or equal to 0.3 and less than or equal to 0.44.

In this embodiment, the second weight concentrated areas 32 are located near the mouthpiece end portion 32A and the front end portion 32B, and the center of gravity of the flavor inhaler 11 is also located near the grasped portion. Therefore, when the flavor inhaler 11 is grasped approximately horizontally with fingers, for example, the second weight concentrated areas 32 located in the two locations facilitate balance, and the moment causing the flavor inhaler 11 to change its setting angle can be minimized.

According to this embodiment, the flavor inhaler 11 has a rod-like or cylindrical shape extending from the mouthpiece end 13A to the front end and includes a weight-concentrated portion. The weight-concentrated portion is provided in a portion 32A near the mouthpiece end and a portion 32B near the front end. The combined weight of the portion 32A near the mouthpiece end and the portion 32B near the front end accounts for at least approximately half of the total weight, and the ratio (length from the mouthpiece end 13A to the center of gravity)/(total length) is within the range of 0.20 to 0.45. More specifically, the combined weight of the portion of the second weight-concentrated portion 32 where the ratio (length from the mouthpiece end)/(total length) is within the range of 0 to 0.2 and the portion where the ratio (length from the mouthpiece end)/(total length) is within the range of 0.9 to 1.0 accounts for at least 45% of the total weight of the flavor inhaler 11. Preferably, the weight of the second weight-concentrated portion 32 accounts for at least 50% and at most 86% of the total weight of the flavor inhaler 11.

The inventor investigated the user and found that, during smoking, the user would grab the position where the value of (length from the mouthpiece end 13A)/(total length) was 0.3. According to the above structure, the center of gravity of the flavor inhaler 11 can be configured at a position where the value of (length from the mouthpiece end 13A)/(total length) is close to 0.3. In addition, the portion 32A near the mouthpiece end and the portion 32B near the front end are provided with the second weight concentration portion 32. Therefore, when, for example, grasping the flavor inhaler 11 substantially horizontally with a finger, it is easy to maintain balance by being dispersed in the second weight concentration portion 32 at the mouthpiece end 13A side and the front end 14 side. In addition, the moment of force for changing the setting angle of the flavor inhaler 11 can be suppressed to be smaller. Thus, it is possible to realize a flavor inhaler 11 that is easy to maintain and not easily fatigued when grasping.

Preferably, the absolute value of the moment when grasping the portion where the value of (length from the mouthpiece end)/(total length) is 0.3 is 14.5 gf·cm or less. This numerical range corresponds to Examples B-2 to B-6 described below. This structure reduces the moment that changes the setting angle of the flavor inhaler 11 when grasping it, thereby achieving a flavor inhaler 11 that is easy for the user to hold and does not cause fatigue when grasping it.

When the absolute value of the moment when grasping the portion having a value of 0.3 of (the length from the mouthpiece end)/(total length) is below 14.5 gf·cm, it is preferred that the value of (the length from the mouthpiece end 13A to the center of gravity)/(total length) is within the range of 0.25 to 0.44. This numerical range corresponds to Examples B-3 to B-6 described later. According to this structure, the center of gravity of the flavor inhaler 11 can be further configured to a position close to the value of 0.3 of (the length from the mouthpiece end 13A)/(total length). Thus, a flavor inhaler 11 that is easy for the user to hold and not easily fatigued when grasped can be realized.

In this case, more preferably, the value of (length from the mouthpiece end 13A to the center of gravity)/(total length) is within a range of 0.3 to 0.44. This numerical range corresponds to Examples B-4 to B-6 described later. With this structure, it is possible to configure the device closer to a value of (length from the mouthpiece end 13A)/(total length) close to 0.3. This makes it possible to achieve a flavor inhaler 11 that is easy for the user to hold and does not fatigue when grasping.

8 to 10 , the eighth, ninth, and tenth embodiments, which are partial modifications of the seventh embodiment, are described. In the following embodiments, the differences from the seventh embodiment are mainly described, and description of the common portions with the seventh embodiment is omitted.

[Eighth Embodiment]

Referring to Figure 8, an eighth embodiment of the flavor inhaler 11 is described. In this embodiment, the housing 12 is formed longer in the axial direction (center axis C direction) compared to the housing of the first embodiment. The battery 15 is arranged at the middle position 26 in the center axis C direction of the housing 12. A component 28 (counterweight) for weight adjustment is provided on the front end 14 side of the housing 12 (the second part 12B). The component 28 is formed of a metal material such as stainless steel or brass. In this embodiment, the component 28 is provided on both the inner and outer sides of the second part 12B. The component 28 can also be provided on either side of the inner side of the second part 12B or the outer side of the second part 12B. The nozzle 13 and the first part 12A of the housing 12 are formed of a metal such as stainless steel or brass.

The portion of the mouthpiece 13, aerosol source 16, core 17, heater 18, and battery 15 on the mouthpiece end 13A side constitute a portion 32A near the mouthpiece end of the second weight concentrated portion 32. The weight adjustment member 28 constitutes a portion 32B near the front end of the second weight concentrated portion 32. The combined weight of the portion 32A near the mouthpiece end and the portion 32B near the front end of the second weight concentrated portion 32 accounts for at least approximately half of the total weight of the second weight concentrated portion 32.

In the present embodiment, the center of gravity of the flavor inhaler 11 is located within a range where the value of (length from the mouthpiece end 13A to the center of gravity)/(total length) is greater than or equal to 0.20 and less than or equal to 0.45.

According to the present embodiment, the part 28 of weight adjustment is set in the part within the range of more than 0.9 and less than 1.0 in the value of (length from the mouthpiece end 13A)/(total length). According to this structure, the weight of the second weight concentration portion 32 can be changed relatively easily, and the design of the flavor inhaler 11 can be made easy. In addition, according to the present embodiment, there is also the second weight concentration portion 32 dispersed in the mouthpiece end 13A side and the front end 14 side two places, and the center of gravity of the flavor inhaler 11 is also located near the part that the user grasps. Therefore, by being dispersed in the second weight concentration portion 32 dispersed in the mouthpiece end 13A side and the front end 14 side two places, it is easy to keep balance, and reduce the generation of the moment of force that changes the setting angle of the flavor inhaler 11. Therefore, it is possible to realize that the user is easy to keep, and the flavor inhaler 11 that is not easily fatigued after keeping for a long time can be realized.

[Ninth embodiment]

Referring to Figure 9 , a ninth embodiment of the flavor inhaler 11 will be described. In this embodiment, the battery 15 is shorter and smaller in the direction of the central axis C than in the previous embodiments. The battery 15 is located within the housing 12 near the front end 14. The mouthpiece 13 and the first portion 12A of the housing 12 are formed of a metal such as stainless steel or brass.

The mouthpiece 13, the first portion 12A of the housing 12, the aerosol source 16, the core 17, and the heater 18 constitute a portion 32A near the mouthpiece end of the second weight concentrated portion 32. The battery 15 constitutes a portion 32B near the front end of the second weight concentrated portion 32. The combined weight of the portion 32A near the mouthpiece end and the portion 32B near the front end of the second weight concentrated portion 32 accounts for at least approximately half of the total weight of the second weight concentrated portion 32.

In the present embodiment, the center of gravity of the flavor inhaler 11 is located within a range where the value of (length from the mouthpiece end 13A to the center of gravity)/(total length) is greater than or equal to 0.20 and less than or equal to 0.45.

According to this embodiment, the second weight-concentrated portion 32, distributed between the mouthpiece end 13A and the front end 14, positions the center of gravity of the flavor inhaler 11 near the portion held by the user. Consequently, the presence of the second weight-concentrated portion 32, distributed between the mouthpiece end 13A and the front end 14, facilitates balance and reduces the torque that would otherwise cause the flavor inhaler 11 to shift in position. This results in a flavor inhaler 11 that is easy for the user to hold and less tiring to hold for extended periods.

[Tenth embodiment]

With reference to Figure 10, the tenth embodiment of the flavor inhaler 11 is described. The battery 15 is arranged near the middle position 26 in the direction of the central axis C of the housing 12. A component 28A (counterweight) for weight adjustment is provided on the side of the mouthpiece end 13A of the housing 12 (the first part 12A). A component 28B (counterweight) for weight adjustment is provided on the front end side of the housing 12 (the second part 12B). Components 28A and 28B are formed of metal materials such as stainless steel and brass. In the present embodiment, components 28A and 28B are arranged on both sides of the inside and outside of the first part 12A, and on both sides of the inside and outside of the second part 12B. Component 28A may also be arranged on either side of the inside of the first part 12A or the outside of the first part 12A. Component 28B may also be arranged on either side of the inside of the second part 12B or the outside of the second part 12B. If component 28B is only provided outside second portion 12B, battery 15 can occupy the entire interior of housing 12, extending to front end 14 (leaving no cavity at the front end of housing 12). While both components 28A and 28B are provided in this embodiment, only one of them may be provided. The nozzle 13 and first portion 12A of housing 12 are formed of a metal such as stainless steel or brass.

The mouthpiece 13, aerosol source 16, core 17, heater 18, and component 28A constitute a portion 32A near the mouthpiece end of the second weight concentrated portion 32. Component 28B constitutes a portion 32B near the front end of the second weight concentrated portion 32. The combined weight of the portion 32A near the mouthpiece end and the portion 32B near the front end of the second weight concentrated portion 32 accounts for at least approximately half of the total weight of the second weight concentrated portion 32.

In the present embodiment, the center of gravity of the flavor inhaler 11 is located within a range where the value of (length from the mouthpiece end 13A to the center of gravity)/(total length) is greater than or equal to 0.20 and less than or equal to 0.45.

According to this embodiment, the weight of the second weight-concentrated portion 32 can be easily changed, making it easier to design the flavor inhaler 11. Furthermore, according to this embodiment, the second weight-concentrated portion 32 is also dispersed between the mouthpiece end 13A and the front end 14, so the center of gravity of the flavor inhaler 11 is also located near the portion that the user grasps. Therefore, by distributing the second weight-concentrated portion 32 between the mouthpiece end 13A and the front end 14, balance is easily maintained, and the torque that would otherwise change the setting angle of the flavor inhaler 11 is reduced. Thus, a flavor inhaler 11 that is easy for the user to hold and does not fatigue even when held for extended periods of time can be achieved.

[Eleventh embodiment]

11 , an eleventh embodiment of the flavor inhaler 11 will be described. In this embodiment, the description will focus on portions different from the first embodiment or the seventh embodiment, and description of portions common to the first embodiment will be omitted.

As shown in Figure 11, in the present embodiment, when cut with the face that intersects with central axis C, battery 15 has the cross-sectional shape of a semicircle roughly.Therefore, in the present embodiment, when the flavor inhaler 11 is divided by the face P that includes central axis C, the weight of one side 41 after the division is larger than the weight of the other side 42 after the division. Specifically, the weight of one side 41 after the flavor inhaler 11 is larger than the weight of the other side 42 after the division. In more detail, the weight of one side 41 after the flavor inhaler 11 is preferably more than 1.5 times and less than 10 times the weight compared with the weight of the other side 42 after the division. In addition, the weight of one side 41 after the flavor inhaler 11 is more preferably more than 1.5 times and less than 5 times the weight compared with the weight of the other side 42 after the division.

According to this embodiment, when the flavor inhaler 11 is divided by a surface extending from the mouthpiece end 13A to the central axis C of the front end 14, the weight of the one side 41 after the division is more than 1.5 times greater than the weight of the other side 42 after the division. According to this structure, the flavor inhaler 11 produces weight unevenness between the one side 41 and the other side 42 after the division by the surface containing the central axis C. Therefore, when the flavor inhaler 11 is formed into a cylindrical shape, it is possible to prevent the flavor inhaler 11 from continuously rolling on the table. Thus, the risk of the flavor inhaler 11 falling from the table and causing damage to the internal electronic components can be reduced. In addition, for example, when a power start switch is provided on the housing 12 on the other side 42 after the division, the switch can always be located on the upper side, so it is easy to use.

In this embodiment, the battery 15 is formed into a substantially semicircular cross-section to create a weight imbalance between the divided sides 41 and 42. However, this method is not limited to this. For example, a weight adjustment member (counterweight) having a substantially semicircular cross-section or a flexible sheet-like member (counterweight) bent into a substantially semicircular shape can also be placed inside the housing 12 to create a weight imbalance. This can also prevent the cylindrical fragrance inhaler 11 from rolling on a table and falling.

The aroma inhaler 11 is not limited to the above-described embodiment. During implementation, variations in the structural elements can be employed without departing from the intended scope. For example, the housing 12 is not limited to a cylindrical shape; it can also be formed into a cylindrical shape with a quadrilateral cross-section. Furthermore, a single aroma inhaler 11 can be realized by appropriately combining the structural elements of the various embodiments described above.

[Example]

Below, with reference to Figures 12 to 17, an embodiment of the flavor inhaler 11 is described. Figure 12 shows the conditions of each example of Example A, each example of Example B, an existing product, and a comparative example. Figure 13 is a conceptual diagram of Example A, which corresponds to the first to sixth embodiments and the eleventh embodiment described above. As shown in Figure 13, in Examples A-1 to A-6 and Comparative Example A-7, the first weight concentration portion 25 is located in a portion away from the mouthpiece, and is provided in a portion closer to the mouthpiece end 13A side than the middle position 26 between the mouthpiece end 13A and the front end 14. More specifically, the first weight concentration portion 25 is provided at a position where the value of (length from the mouthpiece end 13A)/(total length) is within a range of greater than 0.15 and less than 0.45.

FIG14 is a conceptual diagram of Example B, which corresponds to the seventh to tenth and eleventh embodiments described above. As shown in FIG14 , Comparative Example B-1, Examples B-2 to B-7, and Comparative Example B-8 have second weight concentration portions 32 separately provided in a portion 32A near the nozzle end and a portion 32B near the front end. More specifically, the second weight concentration portion 32 is separately provided at two locations where the value of (length from the nozzle end 13A)/(total length) is within a range of 0 to 0.2 and a range of 0.9 to 1.0.

(Existing product 1)

Existing product 1 has the specifications shown in the table in Figure 12. The value of (length from the mouthpiece end 13A to the center of gravity)/(total length) is 0.52. Therefore, the center of gravity of existing product 1 is located near the approximately middle position 26 in the direction of the central axis C of the fragrance inhaler 11. In addition, the torque when grasping the portion where the value of (length from the mouthpiece end 13A)/(total length) is 0.3 is 53.5 gf·cm. Therefore, in existing product 1, due to the large torque generated, there is a tendency for users to find it difficult to hold. This tendency can also be confirmed by the results of an experience evaluation obtained by multiple subjects who actually grasped and felt it and evaluated (rated) the ease of holding. In this experience evaluation, "difficult to hold" was scored as 0 points, "slightly difficult to hold" as 1 point, "average" as 2 points, "slightly easy to hold" as 3 points, and "easy to hold" as 4 points. The results shown in Figure 15 represent the average score of the ratings made by a total of 6 subjects, both men and women. As a result, the average score of the conventional product 1 is between "slightly difficult to hold" and "difficult to hold" and close to "difficult to hold". Therefore, the conventional product 1 can be called a "difficult to hold" flavor inhaler 11.

(Example A-1)

In Example A-1, the weight of the first weight concentrated portion 25 accounts for 46% of the total weight of the flavor inhaler 11. In Example A-1, the position of the center of gravity is set to a value of (length from the mouthpiece 13 to the center of gravity)/(total length) of 0.22.

In Example A-1, the moment when grasping the portion where the value of (length from the nozzle end 13A)/(total length) is 0.3 is -11.8 gf·cm.

As shown in Figure 15, the results of the experience evaluation of Example A-1 were scores in the middle between "average" and "slightly difficult to maintain." Therefore, from the perspective of ease of maintenance, the evaluation was below "average."

(Example A-2)

In Example A-2, the weight of the first weight concentrated portion 25 accounts for 55% of the total weight of the flavor inhaler 11. In Example A-2, the position of the center of gravity is set so that (length from the mouthpiece end 13A to the center of gravity)/(total length) is 0.25.

In Example A-2, the moment when grasping the portion where the value of (length from the nozzle end 13A)/(total length) is 0.3 is -6.4 gf·cm.

As shown in FIG15 , the result of the experience evaluation of Example A-2 was a score slightly closer to “average”, somewhere between “average” and “slightly difficult to hold”. Therefore, from the perspective of ease of holding, it is roughly average.

(Example A-3)

In Example A-3, the weight of the first weight concentrated portion 25 accounts for 72% of the total weight of the flavor inhaler 11. In Example A-3, the position of the center of gravity is set to a value of (length from the mouthpiece end 13A to the center of gravity)/(total length) of 0.3.

In Example A-3, the moment when grasping the portion where the value of (length from the nozzle end 13A)/(total length) is 0.3 is 0.0 gf·cm. Therefore, in Example A-3, no moment is generated when grasping the portion where the value of (length from the nozzle end 13A)/(total length) is 0.3.

As shown in Figure 15 , the results of the user experience evaluation of Example A-3 were scores intermediate between "easy to hold" and "somewhat easy to hold." Therefore, from the perspective of ease of holding, the flavor inhaler 11 can be said to be "easy to hold."

(Example A-4)

In Example A-4, the weight of the first weight concentrated portion 25 accounts for 82% of the total weight of the flavor inhaler 11. In Example A-4, the position of the center of gravity is set to a value of (length from the mouthpiece end 13A to the center of gravity)/(total length) of 0.35.

In Example A-4, the moment when grasping the portion where the value of (length from the nozzle end 13A)/(total length) is 0.3 is 6.2 gf·cm.

As shown in Figure 15 , the results of the experience evaluation of Example A-4 were scores intermediate between “easy to hold” and “somewhat easy to hold.” Therefore, from the perspective of ease of holding, the flavor inhaler 11 can be said to be “easy to hold.”

(Example A-5)

In Example A-5, the weight of the first weight concentrated portion 25 accounts for 50% of the total weight of the flavor inhaler 11. In Example A-5, the position of the center of gravity is set to a value of (length from the mouthpiece end 13A to the center of gravity)/(total length) of 0.44.

In Example A-5, the moment when grasping the portion where the value of (length from the nozzle end 13A)/(total length) is 0.3 is 14.5 gf·cm.

As shown in Figure 15, the results of the experience evaluation of Example A-5 were scores intermediate between "somewhat easy to hold" and "average." Therefore, from the perspective of ease of holding, the flavor inhaler 11 was rated better than "average."

(Example A-6)

In Example A-6, the weight of the first weight concentrated portion 25 accounts for 50% of the total weight of the flavor inhaler 11. In Example A-6, the position of the center of gravity is set to a value of (length from the mouthpiece end 13A to the center of gravity)/(total length) of 0.42.

In Example A-6, the moment when grasping the portion where the value of (length from the nozzle end 13A)/(total length) is 0.3 is 18.6 gf·cm.

As shown in Figure 15, the experience evaluation results of Example A-6 were intermediate between "slightly difficult to hold" and "difficult to hold." Therefore, from the perspective of ease of holding, the flavor inhaler 11 was rated worse than "average."

(Comparative Example A-7)

In Comparative Example A-7, the weight of the first weight concentrated portion 25 accounts for 20% of the total weight of the flavor inhaler 11. In Comparative Example A-7, the position of the center of gravity is set so that (length from the mouthpiece end 13A to the center of gravity)/(total length) is 0.52.

In Comparative Example A-7, the moment when grasping the portion where the value of (length from the nozzle end 13A)/(total length) was 0.3 was 34.1 gf·cm.

As shown in FIG15 , the experience evaluation result of Comparative Example A-7 was a score between "slightly difficult to hold" and "difficult to hold," close to "difficult to hold." Therefore, from the perspective of ease of holding, it can be said that the flavor inhaler 11 was rated worse than "average."

(Comparative Example B-1)

In Comparative Example B-1, the weight of the second weight concentrated portion 32 accounts for 83% of the total weight of the flavor inhaler 11. In Comparative Example B-1, the position of the center of gravity is set so that (length from the mouthpiece end 13A to the center of gravity)/(total length) is 0.17.

In Comparative Example B-1, the moment for grasping the portion where the value of (length from the nozzle end 13A)/(total length) is 0.3 is -20.2 gf·cm.

As shown in FIG15 , the experience evaluation result of Comparative Example B-1 was a score between “slightly difficult to hold” and “difficult to hold”, close to “difficult to hold”. Therefore, from the perspective of ease of holding, it can be said that the flavor inhaler 11 was rated worse than “average”.

(Example B-2)

In Example B-2, the weight of the second weight concentrated portion 32 accounts for 85% of the total weight of the flavor inhaler 11. In Example B-2, the position of the center of gravity is set so that (length from the mouthpiece end 13A to the center of gravity)/(total length) is 0.21.

In Example B-2, the moment when grasping the portion where the value of (length from the nozzle end 13A)/(total length) is 0.3 was -10.1 gf·cm.

As shown in Figure 15, the experience evaluation results of Example B-2 were close to "average" between "average" and "slightly difficult to hold". Therefore, from the perspective of ease of holding, it can be said that the flavor inhaler 11 was rated close to "average".

(Example B-3)

In Example B-3, the weight of the second weight concentrated portion 32 accounts for 82% of the total weight of the flavor inhaler 11. In Example B-3, the position of the center of gravity is set so that (length from the mouthpiece end 13A to the center of gravity)/(total length) is 0.25.

In Example B-3, the moment when grasping the portion where the value of (length from the nozzle end 13A)/(total length) is 0.3 was -6.2 gf·cm.

As shown in FIG15 , the result of the experience evaluation of Example B-3 was a score consistent with “normal.” Therefore, from the perspective of ease of holding, the flavor inhaler 11 can be said to be “normal.”

(Example B-4)

In Example B-4, the weight of the second weight concentrated portion 32 accounts for 86% of the total weight of the flavor inhaler 11. In Example B-4, the position of the center of gravity is set to a value of (length from the mouthpiece end 13A to the center of gravity)/(total length) of 0.30.

In Example B-4, the moment when grasping the portion where the value of (length from the nozzle end 13A)/(total length) is 0.3 was -0.7 gf·cm.

As shown in FIG15 , the results of the user experience evaluation of Example B-4 were scored somewhere between "Normal" and "Somewhat Easy to Hold," close to "Somewhat Easy to Hold." Therefore, from the perspective of ease of holding, the flavor inhaler 11 was rated "Somewhat Easy to Hold."

(Example B-5)

In Example B-5, the weight of the second weight concentrated portion 32 accounts for 80% of the total weight of the flavor inhaler 11. In Example B-5, the position of the center of gravity is set to a value of (length from the mouthpiece end 13A to the center of gravity)/(total length) of 0.35.

In Example B-5, the moment when grasping the portion where the value of (length from the nozzle end 13A)/(total length) is 0.3 was 5.2 gf·cm.

As shown in Figure 15 , the results of the user experience evaluation of Example B-5 were between "easy to hold" and "somewhat easy to hold." Therefore, from the perspective of ease of holding, it can be said that the flavor inhaler 11 is "easy to hold."

(Example B-6)

In Example B-6, the weight of the second weight concentrated portion 32 accounts for 50% of the total weight of the flavor inhaler 11. In Example B-6, the position of the center of gravity is set so that the value of (length from the mouthpiece end 13A to the center of gravity)/(total length) is 0.41.

In Example B-6, the moment when grasping the portion where the value of (length from the nozzle end 13A)/(total length) is 0.3 is 11.6 gf·cm.

15 , the results of the user experience evaluation of Example B-6 were between “somewhat easy to hold” and “average.” Therefore, from the perspective of ease of holding, the flavor inhaler 11 was rated better than “average.”

(Example B-7)

In Example B-7, the weight of the second weight concentrated portion 32 accounts for 50% of the total weight of the flavor inhaler 11. In Example B-7, the position of the center of gravity is set to a value of (length from the mouthpiece end 13A to the center of gravity)/(total length) of 0.40.

In Example B-7, the moment when grasping the portion where the value of (length from the nozzle end 13A)/(total length) is 0.3 was 15.5 gf·cm.

As shown in FIG15 , the experience evaluation results of Example B-7 were midway between "average" and "slightly difficult to hold," with a score close to "slightly difficult to hold." Therefore, from the perspective of ease of holding, the flavor inhaler 11 was rated worse than "average."

(Comparative Example B-8)

In Comparative Example B-8, the weight of the second weight concentrated portion 32 accounts for 53% of the total weight of the flavor inhaler 11. In Comparative Example B-8, the position of the center of gravity is set to a value of (length from the mouthpiece end 13A to the center of gravity)/(total length) of 0.50.

In Comparative Example B-8, the moment when grasping the portion where the value of (length from the nozzle end 13A)/(total length) was 0.3 was 31.0 gf·cm.

As shown in FIG15 , the experience evaluation result of Comparative Example B-8 was a score between "slightly difficult to hold" and "difficult to hold," close to "difficult to hold." Therefore, from the perspective of ease of holding, it can be said that the flavor inhaler 11 was evaluated as "difficult to hold."

Below, as shown in Figures 16 and 17, the results of the above-mentioned embodiments are analyzed. In the graph of Figure 16, the relationship between the torque of Examples A-1 to A-6, Comparative Example A-7, Comparative Example B-1, Example B-2 to B-7, and Comparative Example B-8 and the results of the experience evaluation is shown. The torque is calculated by the method described in the first embodiment. In the graph of Figure 17, the relationship between the absolute value of the torque of Examples A-1 to A-6, Comparative Example A-7, Comparative Example B-1, Example B-2 to B-7, and Comparative Example B-8 and the results of the experience evaluation is shown. In addition, Figure 17 shows the regression formula (linear regression formula) calculated based on the absolute value of the torque of Examples A-1 to A-6, Comparative Example A-7, Comparative Example B-1, Example B-2 to B-7, and Comparative Example B-8 and the results of the experience evaluation. The regression formula obtained by regression analysis is:

y＝-0.1006x+3.1319…Formula (1)

Therefore, it can be seen that the absolute value of the moment and the results of the experience evaluation show a negative correlation. In addition, the coefficient of determination ^R2 of the regression line is

R ² = 0.7491 ≧ 0.5

The linear regression has good accuracy. According to the formula (1), x when y = 2.0 (normal) is

x＝11.2514··≒11.25.

Therefore, it can be understood that when x is 11.25 or less, the experience evaluation result is "average" or better. Therefore, in order to achieve an "easy to hold" flavor inhaler 11, at least with respect to the torque, it is desirable that the absolute value of the torque when grasping the portion where the value of (length from the mouthpiece end 13A)/(total length) is 0.3 is 11.25 or less.

The absolute value of the moment when grasping the flavor inhaler 11 of Examples A-2 to A-4 and B3 to B5, where the ratio (length from the mouthpiece end 13A)/(total length) is 0.3, is 11.25 gf·cm or less. This structure reduces the load on the user's finger when grasping the flavor inhaler 11, making it possible to achieve a so-called "easy to hold" flavor inhaler 11.

The applicant also claims the following matters as inventions.

[1] A fragrance inhaler, wherein:

With a weight-concentrated portion,

The weight concentrated portion is located in the range of (the length from the nozzle end) / (the total length specified by the length from the front end to the nozzle end) being greater than 0.15 and less than 0.45, and accounts for more than 45% of the total weight, or is located in the range of (the length from the nozzle end) / (the total length) being greater than 0 and less than 0.2 and within the range of 0.9 and less than 1.0, and accounts for more than 45% of the total weight,

The value of (the length from the nozzle end to the center of gravity)/(the total length) is within the range of 0.20 to 0.45.

[2] The aroma inhaler according to [1], wherein

The value of (the length from the nozzle end to the center of gravity)/(the total length) is within the range of 0.22 to 0.44.

[3] The aroma inhaler according to [1], wherein

The value of (the length from the nozzle end to the center of gravity)/(the total length) is within the range of 0.21 to 0.41.

Explanation of symbols

11 ...flavor inhaler, 13 ...mouthpiece, 14 ...front end, 15 ...battery, 16 ...aerosol source, 25 ...first weight concentrated portion, 26 ...intermediate position, 28 ...component, 32 ...second weight concentrated portion, 32A ...portion near the mouthpiece end, 32B ...portion near the front end, 41 ...one side, 42 ...the other side.

Claims (14)

1. A fragrance inhaler, extending from the mouthpiece end to the front end in a rod-like or cylindrical shape, characterized in that, The device has a weight concentration section located at a distance from the nozzle end and positioned further from the nozzle end than the midpoint between the nozzle end and the front end, accounting for more than 45% of the total weight. Alternatively, the weight concentration section includes a portion near the nozzle end and a portion near the front end, wherein the combined weight of the portion near the nozzle end and the portion near the front end accounts for more than 45% of the total weight. The value of (length from the nozzle end to the center of gravity) / (total length defined by the length from the nozzle end to the front end) is in the range of 0.20 or more and 0.45 or less. 2. The aroma inhaler as described in claim 1, characterized in that, The weight concentration portion is located in the range of (length from the nozzle end) / (total length defined by the length from the nozzle end to the front end) being 0.15 or more and 0.45 or less, or the portion of the weight concentration portion is located in the range of (length from the nozzle end) / (total length defined by the length from the nozzle end to the front end) being 0 or more and 0.2 or less, and the portion of (length from the nozzle end) / (total length defined by the length from the nozzle end to the front end) being 0.9 or more and 1.0 or less. 3. The aroma inhaler as described in claim 1, characterized in that, The absolute value of the torque when grasping a portion where the value of (length from the nozzle end) / (total length defined by the length from the nozzle end to the front end) is 0.3 is less than 15.5 gf·cm. 4. The aroma inhaler as described in claim 3, characterized in that, The absolute value of the torque when grasping a portion where the value of (length from the nozzle end) / (total length defined by the length from the nozzle end to the front end) is 0.3 is less than 14.5 gf·cm. 5. The aroma inhaler as described in claim 3 or 4, characterized in that, The value of (length from the nozzle end to the center of gravity) / (total length defined by the length from the nozzle end to the front end) is in the range of 0.25 or more and 0.44 or less. 6. The aroma inhaler as described in claim 5, characterized in that, The value of (length from the nozzle end to the center of gravity) / (total length defined by the length from the nozzle end to the front end) is in the range of 0.3 or more and 0.44 or less. 7. The aroma inhaler as claimed in claim 1, characterized in that, The absolute value of the torque when grasping a portion where the value of (length from the nozzle end) / (total length defined by the length from the nozzle end to the front end) is 0.3 is less than 11.25 gf·cm. 8. The aroma inhaler as claimed in claim 1, characterized in that, The total weight is in the range of 10.4g or more and 15.5g or less. 9. The aroma inhaler as claimed in claim 1, characterized in that, At least a portion of the weight concentration section is made of metal. 10. The aroma inhaler as claimed in claim 1, characterized in that, The weight concentration section has a weight adjustment component. 11. The aroma inhaler as claimed in claim 1, characterized in that, When the parts are divided using a surface extending from the nozzle end to the front end along a central axis, the weight of one of the divided parts is more than 1.5 times greater than the weight of the other divided part. 12. The aroma inhaler as claimed in claim 1, characterized in that, The weight of the portion near the nozzle end is greater than the weight of the portion near the front end. 13. The aroma inhaler as claimed in claim 1, characterized in that, The aroma inhaler is non-combustible. 14. The aroma inhaler as claimed in claim 1, characterized in that it comprises: Aerosol source; A heat source heats the liquid supplied from the aerosol source to generate aerosols; The power source supplies electricity to the heat source.