WO2024227853A1

WO2024227853A1 - Consumable set for an aerosol generating device

Info

Publication number: WO2024227853A1
Application number: PCT/EP2024/062055
Authority: WO
Inventors: Alec WRIGHT
Original assignee: JT International SA
Current assignee: JT International SA
Priority date: 2023-05-03
Filing date: 2024-05-02
Publication date: 2024-11-07
Anticipated expiration: 2025-11-03
Also published as: CN121038625A

Abstract

The present invention concerns a consumable set (12) for an aerosol generating device (11) comprising: - a tobacco article (13) extending along an article axis (X) and comprising a substrate part (25) and a cooling part (26) arranged successively with the substrate part (25) along the article axis (X); - a mouthpiece (14) defining a recess configured to receive the cooling part (26) of the tobacco article (13); wherein the cooling part (26) is delimited by a wrapper (31) extending around the article axis (X).

Description

Consumable set for an aerosol generating device

FIELD OF THE INVENTION

The present invention concerns a consumable set for an aerosol generating device. Such a consumable set comprises notably a tobacco article configured to operate with the aerosol generating device.

Particularly, the tobacco article comprises a tobacco substrate able to form aerosol when being heated by the aerosol generating device. Thus, such type of aerosol generating devices, also known as heat-not-burn devices, is adapted to heat, rather than burn to generate aerosol for inhalation.

BACKGROUND OF THE INVENTION

The popularity and use of reduced-risk or modified-risk devices (also known as vaporisers) has grown rapidly in the past few years as an aid to assist habitual smokers wishing to quit smoking traditional tobacco products such as cigarettes, cigars, cigarillos, and rolling tobacco. Various devices and systems are available that heat or warm vaporizable substances as opposed to burning tobacco in conventional tobacco products.

A commonly available reduced-risk or modified-risk device is the heated substrate aerosol generation device or heat-not-burn device. Devices of this type generate aerosol or vapour by heating an aerosol substrate that is usually comprised in a separate consumable article. Typically, such aerosol substrate comprises moist leaf tobacco or other suitable vaporizable material to a temperature typically in the range 150°C to 350°C. Heating an aerosol substrate, but not combusting or burning it, releases aerosol that comprises the components sought by the user but not the toxic and carcinogenic by-products of combustion and burning. Furthermore, the aerosol produced by heating the tobacco or other vaporizable material does not typically comprise the burnt or bitter taste resulting from combustion and burning that can be unpleasant for the user and so the substrate does not therefore require the sugars and other additives that are typically added to such materials to make the smoke and/or vapour more palatable for the user.

Tobacco articles, usable with such type of aerosol generating devices can take various forms. Some of them can present an elongated stick or any other suitable shape, like for example a flat shape. Generally, such a tobacco article is received at least partially in a heating chamber of the device which comprises one or several heaters to heat the tobacco article.

When received at least partially in the heating chamber, the tobacco article is configured to generate aerosol which is delivered to the user via a mouthpiece. In some known devices, the mouthpiece is a part of the device. However, in this case, it may be required to clean it regularly. For example, it may be required to clean the external surface of the mouthpiece each time before using the device for hygienic reasons and at least sometimes, the internal surface of the mouthpiece in order to take off the condensation formed during vaping. In some other devices, a mouthpiece can be formed by the aerosol generating article itself. Thus, its cleaning can be avoided but its using may be difficult for the user, especially when the tobacco article presents reduced dimensions. Additionally, such a mouthpiece can be too hot to be in contact with the user’s lips and special cooling means can be required.

SUMMARY OF THE INVENTION

One of the aims of the invention is to propose a consumable set providing a mouthpiece which does not require to be cleaned and which can be easily used even with articles having reduced dimensions.

For this purpose, the invention relates to a consumable set for an aerosol generating device comprising:

- a tobacco article extending along an article axis and comprising a substrate part and a cooling part arranged successively with the substrate part along the article axis;

- a mouthpiece defining a recess configured to receive the cooling part of the tobacco article; wherein the cooling part is delimited by a wrapper extending around the article axis.

Provided with these features, the mouthpiece makes part of a consumable set, i.e. set which can be purchased and replaced independently from the aerosol generating device. Since this set also includes one or several tobacco articles, it can be naturally purchased by the user while purchasing tobacco articles according to his/her habits. So, the mouthpiece can be used with the or each tobacco article of the set and then be replaced by another mouthpiece when the user purchases another set. In other words, like the tobacco articles, the mouthpiece can also form a disposable consumable product which can be replaced after being used with one or several tobacco articles.

Depending on different examples of the invention, a mouthpiece can be associated to each tobacco article of the set. So, when the tobacco article is exhausted, the mouthpiece is replaced together with the tobacco article. According to another example, a single mouthpiece can be associated to several tobacco articles. In this case, the number of tobacco articles can be comprised between 5 and 25, advantageously between 10 and 20. According to this example, when a tobacco article is exhausted, the mouthpiece can be used with another tobacco article until all of the tobacco articles of the consumable set are exhausted.

Advantageously, a mouthpiece provided with the consumable set does not require to be cleaned since it can be easily replaced by purchasing another consumable set. Moreover, when the tobacco article presents reduced dimensions (for example a flat shape), the mouthpiece of the consumable set is ergonomic and is better adapted to contact with the user’s lips/mouths in comparison with the part of the tobacco article suitable for using as a mouthpiece itself.

Additionally, if the mouthpiece is lost, a new mouthpiece can be purchased together with tobacco articles. Moreover, if the aerosol generating device is shared between several users, each user can have his/her own mouthpiece to improve hygiene.

According to some embodiments, the mouthpiece can comprise a flavouring substance associated for example to the tobacco article(s) of the consumable set. This flavouring substance can for example enhance the flavouring of the tobacco article(s) of the consumable set. Thus, when the user uses a consumable set with tobacco article(s) provided with another flavouring, he/she can also change the mouthpiece which would be better adapted to the new flavouring. In other words, the flavouring substance of the mouthpiece can be chosen in concordance with the flavouring of the tobacco articles of the same consumable set.

According to some embodiments, the mouthpiece is made at least partially of a biodegradable material. Thus, the mouthpiece can be easily recycled after being used. Additionally, the cooling part of the tobacco article can be adapted to be received in the mouthpiece. For example, when the cooling part is delimited by the wrapper, the external surface of the wrapper can be in contact with an internal surface of the mouthpiece. Thus, flow leakage between the mouthpiece and the tobacco article can be avoided. In other words, the mouthpiece can ensure a sealing role. In some embodiments, the mouthpiece can be additionally provided with a sealing member designed for example to extend around the wrapper when the cooling part is received in the mouthpiece.

Advantageously, when the cooling part is received in the mouthpiece, the mouthpiece prevents the wrapper from collapsing inwards.

In some embodiments, the wrapper comprises paper.

The paper can be similar to one used as a tipping paper in the conventional tobacco articles. In a variant, the paper is different from one of the conventional tobacco articles.

In some embodiments, the cooling part is entirely hollow.

By “entirely hollow”, it is understood that the cooling part is void and only the wrapper delimits a volume defined as a cooling part. In this case, the wrapper can be provided as a single or multi-layers sheet which in some embodiments can be associated with one or several supporting elements extending at least partially along the sheet. The or each supporting element can be at least partially superposed with the wrapper to support its structure forming the cooling part.

An entirely hollow cooling part can be particularly efficient when it is necessary to cool down the aerosol produced by the substrate part without creating a significant pressure drop. Additionally, since the cooling part is received in the mouthpiece, the mouthpiece can prevent the wrapper from collapsing inwards, even when it is provided without support.

According to some embodiments, the substrate part has a flat shape, advantageously rectangular in each its cross-section.

This shape of the substrate part is particularly advantageous to ensure a fast preheating phase of the tobacco article. Thus, the article can be ready to generate vapor only a few seconds (for example 5 s or 15 s or 20 s) after activating the heating. In some cases, the whole tobacco article can define a flat shape. For example, the cooling part can have substantially the same cross-sectional shape as the substrate part.

By “flat shape” of the tobacco article or at least one of its parts, it is understood that it extends between two first parallel longitudinal planes and two second parallel longitudinal planes perpendicular to the first parallel longitudinal planes, the distance between the second parallel longitudinal planes being at least 3 times, advantageously 5 times and preferably 10 times, greater than the distance between the first parallel longitudinal planes.

According to some embodiments, the mouthpiece further defines a flow passage extending the recess.

The flow passage can thus be used to deliver aerosol formed in the substrate part of the tobacco article and cooled in the cooling part of the article.

According to some embodiments, the recess and the flow passage form in the mouthpiece a through hole extending between two opposite surfaces of the mouthpiece.

In other words, the mouthpiece presents a through hole suitable for inserting the cooling part of the tobacco article at one end and for deliver aerosol on the other end.

According to some embodiments, the mouthpiece further forms a stop in a transition zone between the recess and the flow passage to prevent the tobacco article from passing into the flow passage.

Provided with these features, the tobacco article can be positioned accurately in respect with the mouthpiece and advantageously, in respect with the device. This can further reduce risk of leakage and heat losses. The stop can be formed by a protrusion or a shoulder. The shoulder can be formed in the transition zone between the substrate part and the cooling part. For example, the cross-sectional area of the cooling part can be at least slightly smaller than the cross-sectional area of the substrate part, forming thus a shoulder in the transition zone.

According to some embodiments, the recess has a shape complementary to the shape of the cooling part. Thus, the recess can fit accurately the external shape of the cooling part and gaps between the cooling part and the mouthpiece can be minimized. This can further reduce vapour leakage.

In some embodiments, the tobacco articles from a same consumable set can have a specific cross-sectional shape in the corresponding cooling parts. In this case, the mouthpiece provided with the consumable set comprises a recess fitting this specific cross- sectional shape of the cooling parts. In other words, in some embodiments, the mouthpieces from different consumable sets cannot be interchanged.

According to some embodiments, the recess or the cooling part comprises at least one internal wall forming one or several airflow channels when the cooling part is received in the recess. In some embodiments, the or each airflow channel extends according to the article axis.

The internal walls can be used to support the wrapper delimiting the cooling part. For example, when one or several internal walls are formed in the cooling part, these walls can extend between opposite walls of the cooling part preventing thus the wrapper from collapsing inwardly while being inserted into the mouthpiece. When one or several internal walls are formed in the cooling part, a gap between these walls and an internal surface of the wrapper delimiting the recess can be provided. This gap allows inserting the wrapper of the tobacco article so as the internal walls are received in the cooling part. In some cases, the tobacco article can be guided by the gap while being inserted in the recess of the mouthpiece.

According to some embodiments, the mouthpiece is formed by injection moulding.

This method can advantageously be used to form the mouthpiece since it is already used to form at least some parts of the tobacco article and/or in packaging. Thus, the mouthpiece can be formed in an efficient and non-expensive way.

According to some embodiments, the mouthpiece is formed from an absorbent material. This material, such for example paper, can be user to absorb vapour formed in the interior part of the mouthpiece. So, it is possible de minimize flow leakage during or after a vaping session.

According to some embodiments, the mouthpiece comprises paper.

Paper is a good absorbent material that makes it possible to minimize flow leakage during or after a vaping session. Paper is also a naturally poor conductor of heat. Its heat conduction can be around at about -0.05 W/(m.k). Provided with these features, the mouthpiece can remain relatively cold even when the substrate part is being heated to produce aerosol. Finally, paper is relatively non-expensive and can be easily recycled.

The texture of the paper used to form the mouthpiece can be similar to one the conventional tobacco articles, for example be similar to one of the tipping paper used as a wrapper in the conventional tobacco articles. It will give more natural feelings for the user.

According to some embodiments, the consumable set comprises a plurality of tobacco articles and at least one mouthpiece adapted to receive the cooling part of each tobacco article. The number of tobacco articles can be comprised between 5 and 25, advantageously between 10 and 20.

According to some embodiments, the consumable set forms a pack of tobacco articles. In other words, the consumable set is a pack of tobacco articles.

In this case, it can for example comprise a box adapted to receive a plurality of tobacco articles and at least one mouthpiece. The box can be provided with a lid and an inner liner preserving the flavour of the tobacco articles and/or mouthpiece(s). A special compartment can for example be designed inside the box to receive one or several mouthpieces.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention and its advantages will be better understood upon reading the following description, which is given byway of non-limiting example and which is made with reference to the appended drawings, in which: - Figure 1 is a schematic view of an aerosol generating assembly comprising an aerosol generating device and a consumable set according to the invention, the consumable set comprising a tobacco article and a mouthpiece;

- Figure 2 is a perspective view of the tobacco article of Figure 1 ;

- Figure 3 shows cross-sectional views of several examples of the tobacco articles of Figure 1 ;

- Figure 4 shows different schematic views of the mouthpiece of Figure 1 engaged/disengaged with/from the tobacco article of Figure 1 ; and

- Figure 5 is a schematic view of a pack of tobacco articles comprising a plurality of tobacco articles and at least one mouthpiece, of Figure 1 .

DETAILED DESCRIPTION OF THE INVENTION

Before describing the invention, it is to be understood that it is not limited to the details of construction set forth in the following description. It will be apparent to those skilled in the art having the benefit of the present disclosure that the invention is capable of other embodiments and of being practiced or being carried out in various ways.

As used herein, the term “aerosol generating device” or “device” may include a vaping device to deliver an aerosol to a user, including an aerosol for vaping, by means of a heater element explained in further detail below. The device may be portable. “Portable” may refer to the device being for use when held by a user. The device may be adapted to generate a variable amount of aerosol, e.g. by activating the heater element for a variable amount of time (as opposed to a metered dose of aerosol), which can be controlled by a trigger. The trigger may be user activated, such as a vaping button and/or inhalation sensor. The inhalation sensor may be sensitive to the strength of inhalation as well as the duration of inhalation to enable a variable amount of vapour to be provided (so as to mimic the effect of smoking a conventional combustible smoking article such as a cigarette, cigar or pipe, etc.). The device may include a temperature regulation control to drive the temperature of the heater and/or the heated aerosol generating substance (aerosol pre-cursor) to a specified target temperature and thereafter to maintain the temperature at the target temperature that enables efficient generation of aerosol. As used herein, the term “aerosol” may include a suspension of vaporizable material as one or more of: solid particles; liquid droplets; gas. Said suspension may be in a gas including air. Aerosol herein may generally refer to/include a vapour. Aerosol may include one or more components of the vaporizable material.

As used herein, the term “vaporizable material” or “precursor” may refer to a smokable material which may for example comprise nicotine or tobacco and an aerosol former. Tobacco may take the form of various materials such as shredded tobacco, granulated tobacco, tobacco leaf and/or reconstituted tobacco. Suitable aerosol formers include: a polyol such as sorbitol, glycerol, and glycols like propylene glycol or triethylene glycol; a non-polyol such as monohydric alcohols, acids such as lactic acid, glycerol derivatives, esters such as triacetin, triethylene glycol diacetate, triethyl citrate, glycerin or vegetable glycerin. In some embodiments, the aerosol generating agent may be glycerol, propylene glycol, or a mixture of glycerol and propylene glycol. The substrate may also comprise at least one of a gelling agent, a binding agent, a stabilizing agent, and a humectant.

Figure 1 shows an aerosol generating assembly 10 comprising an aerosol generating device 11 and a consumable set 12. The consumable set 12 comprises a tobacco article 13 and a mouthpiece 14. The tobacco article 13 is intended to operate with the aerosol generating device 1 1 and shown in more detail in Figure 2.

Referring to Figure 1 , the aerosol generating device 11 comprises a device body 15 extending along a device axis Y between a closed end 16 and an open end 17. The open end 17 presents an opening from which the tobacco article 13 can be inserted inside the device 11 . The device body 15 delimits an internal space of the device 11 receiving various elements designed to carry out different functionalities of the device 1 1 . This internal space can for example receive a battery for powering the device 1 1 , a control module for controlling the operation of the device 11 , a heating chamber 60 for heating the tobacco article 13, etc. In the example of Figure 1 , only the heating chamber 60 is shown. Particularly, the heating chamber 60 is designed to receive at least partially the tobacco article 13. In the example of Figure 1 , the heating chamber 60 may be for example arranged adjacent to the opening formed by the open end 17 of the device body 15. The heating chamber 60 may for example extend according to the device axis Y and present a cup shape. The heating chamber 60 may comprise a heater designed to heat at least a part of the tobacco article 13. The heater comprises for example a pair of heating plates facing each other and designed to heat opposite walls of the tobacco article 13 as it will be explained in further detail below. According to other embodiments, the heater comprises any other mean suitable for heating the tobacco article, as for example a heating blade or a magnetic coil.

In the example of Figure 2, the tobacco article 13 presents a flat shape. In other words, in this example, the tobacco article 13 is a flat-shaped cuboid extending along an article axis X between an inlet end 18 and an outlet end 19, and having external dimensions LxWxD. In a typical example, the length L of the article 13 according to the article axis X equals substantially to 33 mm while its width W and depth D are substantially equal respectively to 12 mm and 1 ,2 mm. According to different examples, the values L, W and D can be selected within a range of +/- 40%, for example. The depth D of the tobacco article 13 is formed by a pair of parallel walls 23A, 23B, called hereinafter lateral walls 23A, 23B, and the width W of the tobacco article 13 is formed by a pair of parallel walls 24A, 24B, called hereinafter wider walls 24A, 24B. Since in the example of Figure 2 the tobacco article 13 presents a flat shape, each wider wall 24A, 24B is for example at least 5 times, advantageously 10 times, wider than each lateral wall 23A, 23B. The flat shape of the tobacco article 13 is thus defined by the ratio between each wider wall 24A, 24B and each lateral wall 23A, 23B, which is greater than 5, advantageously greater than 10. In some embodiments, the edges between the wide and lateral walls 23A, 23B, 24A, 24B can be rounded. According to other examples, the tobacco article 13 can have any other suitable shape, for example a cylindrical shape having a circular or oval cross-section.

The tobacco article 13 comprises a substrate part 25 and a cooling part 26 arranged along the article axis X. The substrate part 25 may for example be slightly longer than the cooling part 26. For example, the length L2 of the substrate part 25 according to the article axis X may be substantially equal to 18 mm and the length L1 of the cooling part 26 according to the article axis X may be substantially equal to 15 mm. The substrate part 25 defines the inlet end 18 of the article 13 and the cooling part 16 defines the outlet end 19 of the article 13. The substrate part 25 and the cooling part 26 may be fixed one to the other by a wrapper 31 extending around the article axis X. In this case, the wrapper 31 forms the lateral and wider walls 23A, 23B, 24A, 24B of the tobacco article 13. In some embodiments, the wrapper 31 is formed from a same wrapping sheet. In some other embodiments, the wrapper 31 is formed from separate wrapping sheets wrapping separately the parts 25, 26 and fixed one to the other by any other suitable mean. The wrapper 31 may, for example, comprise paper and/or non-woven fabric and/or aluminium foil. The wrapper 31 may be porous or air impermeable. In some embodiments, when the wrapper 31 comprises aluminium, the aluminium can wrap only the tobacco substrate, to prevent condensation leakage and/or vapour leakage. In an embodiment, the wrapper is a laminate of paper and aluminium which extends along the full length of the article axis X. Additionally, aluminium allows a better heat transfer.

The substrate part 25 of the tobacco article 13 is designed to be received (for example through the opening formed by the device body 15) in the heating chamber 60 of the aerosol generating device 1 1 so as the article and device axes X, Y coincides, as it is shown in Figure 1. The part of each wider wall 23A, 23B corresponding to the substrate part 25 of the article 13 is designed to be heated by the heating chamber 60 of the device 11. Particularly, each of these parts is designed to be in contact with the heating plate forming the heater, as explained above. In some embodiments, the corresponding part of only one of the wider walls 23A, 23B is designed to be heated by the heater. The substrate part 25 comprises a tobacco substrate containing a vaporizable material as defined above. The vaporizable material is for example compressed to form a solid structure which is able to release aerosol upon heating. This solid structure can for example form a cuboid shape. In some examples, the solid structure forms on its surface aerosol channels conducting aerosol formed by the vaporizable material. In some examples, the solid structure can have a corrugated shape in each its cross-section. In this example, the corrugated shape defines a plurality of valley regions, each valley region forming an aerosol channel as explained above.

The cooling part 26 is intended to act as a cooler to cool the vapour before it is inhaled by the user. In the example of Figure 2, the cooling part 26 is hollow, advantageously entirely. In other words, in this example, the cooling part 26 is delimited only by a wrapper, for example the wrapper 31 explained above, extending around the article axis X. According to other examples, the cooling part 26 comprises at least one internal wall extending along the article axis X and forming one or several airflow channels. For example, the internal wall can be entirely adjacent to the internal surface of the wrapper 31 or extend between a pair of walls, lateral or wider 23A, 23B, 24A, 24B. In this last case, several airflow channels can be formed in the cooling part 26. The internal wall can also be formed by a core inserted into the cooling part 26. In some embodiments, the core can act as a filtering element. Figure 3 shows different examples of a non-hollow cooling part 26.

In example A, an internal wall 37 is formed parallel to the lateral walls 23A, 23B formed by the wrapper 31 . This internal wall 37 is arranged for example substantially in the middle between the lateral walls 23A, 23B and divides the cooling part 26 on two airflow channels.

In example B, two internal walls 37A, 37B are formed parallel to the lateral walls 23A, 23B. Additionally, two internal walls 37C, 37D are formed parallel to the wider walls 24A, 24B. The internal wall 37C extends between the lateral wall 23B and the internal wall 37A and the internal wall 37D extends between the lateral wall 23A and the internal wall 37B. In this case, five airflow channels are formed in the cooling part 26.

In example C, a core formed by two tubular elements 37A, 37B is inserted in the cooling part 26. Each tubular element 37A, 37B extends according to the article axis X and forms for example a circular shape in its cross-section. Each tubular element 37A, 37B can be in contact with the wider walls 24A, 24B.

In example D, a core 37 formed by a corrugated paper is inserted into the cooling part 26. The core 37 may be formed through an extrusion and/or rolling process into a stable shape. Advantageously, the core 37 is arranged inside the cooling part 26 to be in contact with the wider walls 24A, 24B.

Figure 4 shows different views of the mouthpiece 14 adapted to be engaged with the tobacco article 13. The mouthpiece 14 is made for example from by paper by injection moulding. Particularly, as shown in this Figure 4, the mouthpiece 14 defines on its rear surface 38 a recess 40 adapted to receive the cooling part 26 of the tobacco article 13. For this purpose, the recess 40 has a shape complementary to the shape of the cooling part 26. Thus, the recess 40 can have a substantially rectangular cross-section similar to one of the tobacco article 13. In some examples, the recess 40 can be provided with a sealing member configured to be engaged with an external surface of the cooling part 26. As it is shown in part C of Figure 4, the recess 40 is adapted to receive substantially entirely the cooling part 26 of the tobacco article 13 without the substrate part 25. The recess 40 is extended by a flow passage 41 opening to a front surface 39 of the mouthpiece 14 opposite to its rear surface 38. In other words, the recess 40 together with the flow passage 41 form a through hole of the mouthpiece 14 extending between the rear surface 38 and the front surface 39. The mouthpiece 14 can further define a stop in a transition zone between the recess 40 and the flow passage 41. The stop prevents the tobacco article 13 from crossing the whole mouthpiece 14 while being inserted from the rear surface 38. The stop can be formed by the flow passage 41 having a cross-section slightly different from the cross-section of the recess 40. For example, the cross-sectional area of the flow passage 41 can be smaller than the cross-sectional area of the recess 40. Thus, a shoulder can be formed between the recess 40 and the flow passage 41 . The outlet end 19 of the tobacco article 13 can thus be abutted against the shoulder to prevent it from crossing the flow passage 41 . According to other examples, the stop is formed by a protrusion in the transition zone.

In the example of Figure 4, the recess 40 is entirely hollow. In some other examples, the recess 40 can comprise one or several internal walls similar to those (i.e. 37, 37A to 37D) explained in reference to Figure 3. In this case, the cooling part 26 of the tobacco article 13 can be entirely hollow or comprise internal walls arranged to not interact with or to not hit the internal walls of the recess 40. Additionally, the internal walls of the recess 40 form a gap with the lateral surface delimiting the recess 40 so as the wrapper 31 of the tobacco article 13 can be inserted into the gap while inserting the tobacco article 13 into the recess 40. For this purpose, the internal walls of the recess 40 can be attached in the transition zone between the recess 40 and the flow passage 41 . In this manner, the internal walls of the recess 40 can support (i.e. hold open) the cooling part 26 of the tobacco article

13 which, as explained above, can be entirely or partially hollow. In some embodiments, the internal walls of the recess 40 can be extended to the flow passage 41 of the mouthpiece

14 and/or the flow passage 41 itself can form an additional cooling zone independent from the tobacco article 13.

Figure 5 shows schematically a pack of tobacco articles 50 comprising a plurality of tobacco articles 13 and a unique mouthpiece 14. The mouthpiece 14 is usable with each of the tobacco articles 13. Particularly, the recess 40 of the mouthpiece 14 is adapted to receive the cooling part 26 of each of the tobacco articles 13 of the pack 50. According to other examples, more than one mouthpieces 14 are included in the pack of tobacco articles 50.

In use, the user can for example purchase a pack of tobacco articles 50 as shown in Figure 5. Then, the user extracts from the pack of tobacco articles 50 the mouthpiece 14 and a tobacco article 13. Then, the user inserts the cooling part 26 of the tobacco article 13 into the recess 40 from the rear surface 38 of the mouthpiece 14. Then, the user inserts the substrate part 25 of the tobacco article 13 into the aerosol generating device 1 1. The rear surface 38 of the mouthpiece 14 closes the open end 17 of the device body 15 and the aerosol generating device 11 is ready to be used. After the vaping session, the mouthpiece 14 can be disengaged from the tobacco article 13 and stored in the pack of tobacco articles

50 until being used with another tobacco article 13.

Claims

1. A consumable set (12) for an aerosol generating device (1 1 ) comprising:

- a tobacco article (13) extending along an article axis (X) and comprising a substrate part (25) and a cooling part (26) arranged successively with the substrate part (25) along the article axis (X);

- a mouthpiece (14) defining a recess (40) configured to receive the cooling part (26) of the tobacco article (13); wherein the cooling part (26) is delimited by a wrapper (31 ) extending around the article axis (X).

2. The consumable set (12) according to claim 1 , wherein the wrapper (31 ) comprises paper.

3. The consumable set (12) according to any one of the preceding claims, wherein the cooling part (26) is entirely hollow.

4. The consumable set (12) according to any one of the preceding claims, wherein the substrate part (25) has a flat shape, advantageously rectangular in each its crosssection.

5. The consumable set (12) according to any one of the preceding claims, wherein the mouthpiece (14) further defines a flow passage (41 ) extending the recess (40).

6. The consumable set (12) according to claim 5, wherein the recess (40) and the flow passage (41 ) form in the mouthpiece (14) a through hole extending between two opposite surfaces (38, 39) of the mouthpiece (14).

7. The consumable set (12) according to claim 5 or 6, wherein the mouthpiece (40) further forms a stop in a transition zone between the recess (40) and the flow passage (41 ) to prevent the tobacco article (13) from passing into the flow passage (41 ).

8. The consumable set (12) according to any one of claims 5 to 7, wherein the recess (40) has a shape complementary to the shape of the cooling part (26).

9. The consumable set (12) according to any one of the preceding claims, wherein the recess (40) or the cooling part (26) comprises at least one internal wall forming one or several airflow channels when the cooling part (26) is received in the recess (40).

10. The consumable set (12) according to claim 9, wherein the or each airflow channel extends according to the article axis (X).

11 . The consumable set (12) according to any one of the preceding claims, wherein the mouthpiece (14) is formed by injection moulding.

12. The consumable set (12) according to any one of the preceding claims, wherein the mouthpiece (14) is formed from an absorbent material.

13. The consumable set (12) according to any one of the preceding claims, wherein the mouthpiece (14) comprises paper.

14. The consumable set (12) according to any one of the preceding claims, comprising a plurality of tobacco articles (13) and at least one mouthpiece (14) adapted to receive the cooling part (26) of each tobacco article (13).

15. The consumable set (12) according to claim 14, forming a pack of tobacco articles

(50).