Support member provided in cartridge for heated tobacco

Abstract

To provide a support member for a heated tobacco and a cartridge for a heated tobacco in which a shape and arrangement of a hole part are optimized.SOLUTION: A support member 13 provided in a cartridge for a heated tobacco is arranged sandwiching another member between itself and an aerosol forming base material, supports the aerosol forming base material, has a first end surface 30, a second end surface 31, and a peripheral surface part 32, and has a hole part 40 penetrating between the first end surface and the second end surface formed therein. In the peripheral part, a plurality of irregularities 45 each having an irregular shape are formed entirely along a peripheral direction. The plurality of irregularities have a curve surface.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a support member for a heated tobacco product having a tobacco filler made from a tobacco or non-tobacco plant, and a cartridge for a heated tobacco product having the same. [Background technology]

[0002] In recent years, in order to comply with the trend of smoking cessation, heated tobacco products that allow the user to enjoy tobacco by heating a cartridge containing tobacco components without using a flame and inhaling the vaporized tobacco components have become widespread. A cartridge for a heated tobacco product has a tobacco filler that is heated by inserting a heating body such as a blade of a heated tobacco product body, a filter provided at the mouthpiece, and a support member provided between the tobacco filler and the filter, and is formed by wrapping these in a packaging member such as paper. Examples of such a support member for a heated tobacco product and a cartridge for a heated tobacco product include those listed in Patent Document 1.

[0003] In addition, in the heated tobacco of Patent Document 2, a heating element is inserted into the aerosol-forming substrate of a heated tobacco cartridge to heat the aerosol-forming substrate and generate an aerosol containing a tobacco component. The heated tobacco cartridge has a hollow tubular support member that supports the aerosol-forming substrate, and the support member resists the force that the cartridge receives when the heating element is inserted into the aerosol-forming substrate. The tobacco component released from the aerosol-forming substrate by heating is transported through the hollow part of the support member to a mouthpiece located downstream and is inhaled by the user. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Utility Model Registration No. 3212228 [Patent Document 2] Patent No. 6000451 Summary of the Invention [Problem to be solved by the invention]

[0005] The support member for heated tobacco has a function of allowing airflow from the tobacco filler to pass therethrough, and supporting the tobacco filler from one end to prevent the filler from collapsing when a heating element is inserted into the tobacco filler. For this reason, the support member for heated tobacco has a hole penetrating in the length direction, and supports the tobacco filler at the other parts.

[0006] In a cross section of the heated tobacco support member cut along a plane perpendicular to the length direction, the area of ​​the hole is a gap. If the void ratio in the cross section is high, the fluidity of the airflow from the tobacco filler toward the mouthpiece can be improved, but if the void ratio is too high, the function of supporting the tobacco filler is reduced. In addition, the function of supporting the tobacco filler is affected by how the holes are arranged in the cross section. Therefore, by optimizing the shape and arrangement of the holes, it is possible to achieve both the fluidity of the airflow and the function of supporting the tobacco filler.

[0007] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a support member for a heated tobacco product and a cartridge for a heated tobacco product in which the shape and arrangement of the hole are optimized.

[0008] In addition, in the heated tobacco of Citation 2, since the support member is hollow tubular, when the heating element is inserted into the aerosol-forming substrate, the center of the aerosol-forming substrate cannot be supported, and the filling may fly out into the support member. If the porosity of the support member is high, the fluidity of the airflow from the aerosol-forming substrate toward the mouthpiece can be improved, but if the porosity is too high, the function of supporting the aerosol-forming substrate is reduced. For this reason, it is necessary for the support member to achieve both the fluidity of the airflow and the support function of the aerosol-forming substrate.

[0009] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a support member for a heated tobacco product and a heated tobacco cartridge in which the shape and arrangement of the hollow portion of the support member are optimized. [Means for solving the problem]

[0010] In order to solve the above problem, a support member for heated tobacco is a support member provided between a tobacco filler accumulation body and a mouthpiece of a cartridge for heated tobacco, and is characterized in that it has a first end face, a second end face and a peripheral surface portion, and a hole portion is formed that penetrates between the first end face and the second end face, and the hole portion has a first through hole that is positioned in the first end face or the second end face so as not to include the central axis of the peripheral surface portion.

[0011] The heated tobacco support member is characterized in that a plurality of the first through holes are provided along a circumferential direction in the first end face or the second end face.

[0012] In addition, the heated tobacco support member is characterized in that the first through hole has, at least in part, an elliptical arc having a center on a circle having a certain radius from the central axis of the peripheral surface portion on the first end face or the second end face.

[0013] The heated tobacco supporting member is characterized in that the hole has the elliptical arc portion on the outer periphery side in the first end face or the second end face.

[0014] In addition, the heated tobacco support member is characterized in that the hole portion has a second through hole that penetrates between the first end face and the second end face and includes the central axis of the peripheral surface portion.

[0015] In addition, the heated tobacco support member is characterized in that the peripheral surface has an uneven portion having an uneven shape along the circumferential direction, the uneven portion being formed over the entire length from the first end face to the second end face.

[0016] The heated tobacco support member is characterized in that a plurality of the projections and recesses are formed over the entire circumference of the peripheral surface.

[0017] The heated tobacco cartridge is characterized by having a tobacco filler accumulation, a mouthpiece, and a support member provided between the tobacco filler accumulation and the mouthpiece.

[0018] In order to solve the above-mentioned problems, the support member for heated tobacco of the present invention is a support member for heated tobacco that is provided in a heated tobacco cartridge using a tobacco plant or a non-tobacco plant, and has a support portion that is provided along the longitudinal direction of the heated tobacco cartridge at an angle with respect to the central axis of the heated tobacco cartridge, and a lateral extension portion that extends outward from the support portion and whose outer edge contacts a packaging material located on the periphery of the heated tobacco cartridge, and is positioned adjacent to an aerosol-forming substrate located at one end of the heated tobacco cartridge, or with another member sandwiched between the aerosol-forming substrate and the aerosol-forming substrate, and supports the aerosol-forming substrate.

[0019] In addition, the support member for heated tobacco of the present invention is a support member for heated tobacco that is provided in a heated tobacco cartridge using a tobacco plant or a non-tobacco plant, and has a support portion provided at any position in the longitudinal direction, and a lateral extension portion connected to the support portion and whose outer edge portion contacts a packaging material located on the periphery of the heated tobacco cartridge, and is positioned adjacent to an aerosol-forming substrate located at one end of the heated tobacco cartridge, or with another member sandwiched between the aerosol-forming substrate and the aerosol-forming substrate, to support the aerosol-forming substrate.

[0020] Furthermore, the support member for heated tobacco according to the present invention is a support member for heated tobacco provided in a heated tobacco cartridge using a tobacco plant or a non-tobacco plant, and in an end face shape cut along a plane perpendicular to the central axis of the heated tobacco cartridge, the support member has a lateral extension portion extending radially from the center position of the end face shape, and the lateral extension portion has an outer edge portion in contact with a packaging material located on the periphery of the heated tobacco cartridge, and is positioned adjacent to an aerosol-forming substrate located at one end of the heated tobacco cartridge, or with another member sandwiched between the lateral extension portion and the aerosol-forming substrate, and supports the aerosol-forming substrate.

[0021] The heated tobacco supporting member according to the present invention also has a connecting portion that connects at least two of the lateral extension portions adjacent to each other in the circumferential direction in the circumferential direction.

[0022] In addition, the heated tobacco support member of the present invention has a lid portion at both ends of the lateral extension portion, the lid portion having an outer edge that contacts the packaging material of the heated tobacco cartridge, and the lid portion has a communicating hole portion that communicates with the space portion formed between adjacent lateral extension portions in the circumferential direction.

[0023] Furthermore, the support member for heated tobacco according to the present invention is a support member for heated tobacco that is provided in a heated tobacco cartridge using a tobacco plant or a non-tobacco plant, and has a support portion that is provided along the central axis of the heated tobacco cartridge, and an outer peripheral portion that is connected to the outer edge of the support portion and whose outer edge contacts a packaging material located on the periphery of the heated tobacco cartridge, and is positioned adjacent to an aerosol-forming substrate located at one end of the heated tobacco cartridge, or with another member sandwiched between the aerosol-forming substrate and the aerosol-forming substrate, to support the aerosol-forming substrate.

[0024] In addition, in the heated tobacco supporting member according to the present invention, the supporting portion has a through-hole portion penetrating between both end faces.

[0025] In addition, the support member for heated tobacco of the present invention is a support member for heated tobacco that is provided in a heated tobacco cartridge using a tobacco plant or a non-tobacco plant, and has a support portion that is provided along the central axis of the heated tobacco cartridge, and a lateral extension portion that extends outward from the support portion and whose outer edge contacts a packaging material located on the periphery of the heated tobacco cartridge, and the lateral extension portion is formed in a spiral shape along the length of the support portion, and is positioned adjacent to an aerosol-forming substrate located at one end of the heated tobacco cartridge, or with another member sandwiched between the lateral extension portion and the aerosol-forming substrate, and supports the aerosol-forming substrate.

[0026] In addition, the support member for heated tobacco of the present invention is a support member for heated tobacco provided in a heated tobacco cartridge using a tobacco plant or a non-tobacco plant, and has a support portion provided along the central axis of the heated tobacco cartridge, a lateral extension portion extending outward from the support portion and having an outer edge portion contacting a packaging material located on the periphery of the heated tobacco cartridge, and a second lateral extension portion extending from the lateral extension portion and having an outer edge portion contacting the packaging material, and is positioned adjacent to an aerosol-forming substrate located at one end of the heated tobacco cartridge, or with another member sandwiched between the aerosol-forming substrate and the aerosol-forming substrate, and supports the aerosol-forming substrate.

[0027] Furthermore, the support member for heated tobacco according to the present invention is a support member for heated tobacco that is provided in a heated tobacco cartridge using a tobacco plant or a non-tobacco plant, and has a main body that is provided along the central axis of the heated tobacco cartridge and whose outer edge is in contact with a packaging material located on the periphery of the heated tobacco cartridge, and a notch in which a part of the outer edge of the main body is cut out, and is positioned adjacent to an aerosol-forming substrate located at one end of the heated tobacco cartridge, or with another member sandwiched between the aerosol-forming substrate and the aerosol-forming substrate, and supports the aerosol-forming substrate.

[0028] In addition, in the heated tobacco supporting member according to the present invention, the main body has a through-hole portion that penetrates between both end portions.

[0029] Furthermore, a heated tobacco cartridge using a tobacco plant or a non-tobacco plant according to the present invention has the aerosol-forming substrate and any one of the heated tobacco support members described above.

[0030] The heated tobacco cartridge of the present invention comprises a tobacco filler accumulation which generates an aerosol when heated, a filter, a support member arranged between the tobacco filler accumulation and the filter, and a packaging member wrapped around the outer periphery of the tobacco filler accumulation, the filter, and the support member, and the support member has an outer periphery with a plurality of uneven portions on its outer surface.

[0031] In the above-mentioned heated tobacco cartridge, the plurality of concave and convex portions may be provided along a circumferential direction.

[0032] In the above-mentioned heated tobacco cartridge, the plurality of concave and convex portions may be provided over the entire cartridge along a circumferential direction.

[0033] In the above-mentioned heated tobacco cartridge, the plurality of concave and convex portions may extend in a length direction from a first end surface to a second end surface of the support member.

[0034] In the above-mentioned heated tobacco cartridge, the plurality of concave and convex portions may be formed over the entire length of the support member from the first end surface to the second end surface.

[0035] In the above-mentioned heated tobacco cartridge, each of the plurality of concave and convex portions may have a tip portion.

[0036] In the above-mentioned heated tobacco cartridge, the plurality of concave-convex portions may include nine or more convex portions.

[0037] In the above-mentioned heated tobacco cartridge, the plurality of concave-convex portions may include 150 or less convex portions.

[0038] In the above-mentioned heated tobacco cartridge, the outer diameter of the support member may be ten times or more the height of the concave-convex portion.

[0039] In the above-mentioned heated tobacco cartridge, the plurality of concave and convex portions may have a cross-sectional shape of a substantially triangular groove.

[0040] In the above-mentioned heated tobacco cartridge, each of the plurality of concave and convex portions may have a curved surface. Effect of the Invention

[0041] According to the support member for heated tobacco of the present invention, since it has a first through hole, it can reliably support the tobacco filler accumulation even if the area of ​​the hole is large, and the support member can be prevented from being crushed when the heated tobacco cartridge is held in the hand.

[0042] According to the supporting member for heated tobacco of the present invention, it is possible to achieve both the fluidity of the airflow and the supporting function of the aerosol-forming substrate. [Brief description of the drawings]

[0043] [Figure 1] FIG. 2 is a cross-sectional view showing a usage form of the heated tobacco cartridge. [Diagram 2] FIG. [Diagram 3] FIG. 2 is a front view of a first end surface of the support member. [Figure 4] FIG. 11 is a perspective view of a support member according to a first modified example. [Diagram 5] 1 is a cross-sectional view of a support member according to a first modified example provided in a heated tobacco cartridge, taken along a plane perpendicular to the longitudinal direction. FIG. [Figure 6] 13 is a front view of a first end surface of a support member according to a second modified example. FIG. [Figure 7] FIG. 13 is a front view of a first end surface of a support member according to a third modified example. [Figure 8] FIG. 13 is a front view of a first end surface of a support member according to a fourth modified example. [Figure 9] FIG. 13 is a front view of a first end surface of a support member according to a fifth modified example. [Figure 10] FIG. 13 is a front view of a first end surface of a support member according to a sixth modified example. [Figure 11] 2 is a cross-sectional view taken along a plane including a central axis along the longitudinal direction of the heated tobacco cartridge in this embodiment. FIG. [Figure 12] FIG. 2 is a cross-sectional view showing a usage form of the heated tobacco cartridge. [Figure 13] FIG. 2 is a side view of the support member of the first embodiment. [Figure 14] 14(a) is a front view of a support member of the first embodiment, and FIG. 14(b) is a rear view of the support member. [Figure 15] FIG. 11 is a front view of a support member according to a second embodiment. [Figure 16] FIG. 11 is an enlarged perspective view of the vicinity of a support portion of a support member according to a second embodiment. [Figure 17] FIG. 11 is an end view of a support member of a third embodiment, cut along a plane perpendicular to the central axis of the heated tobacco cartridge. [Figure 18] FIG. 11 is an end view of a support member of a fourth embodiment, cut along a plane perpendicular to the central axis of the heated tobacco cartridge. [Figure 19] FIG. 13 is a perspective view of a support member according to a fifth embodiment. [Figure 20] FIG. 13 is an end view of a support member of a sixth embodiment, cut along a plane perpendicular to the central axis of the heated tobacco cartridge. [Figure 21] FIG. 13 is an end view of the support member of the seventh embodiment, cut along a plane perpendicular to the central axis of the heated tobacco cartridge. [Figure 22] FIG. 13 is an end view of a support member of an eighth embodiment, cut along a plane perpendicular to the central axis of the heated tobacco cartridge. [Diagram 23] FIG. 13 is an end view of a support member of the ninth embodiment, cut along a plane perpendicular to the central axis of the heated tobacco cartridge. [Figure 24] FIG. 13 is an end view of the support member of the tenth embodiment, cut along a plane perpendicular to the central axis of the heated tobacco cartridge. [Diagram 25] FIG. 23 is a perspective view of a support member according to an eleventh embodiment. [Figure 26] FIG. 23 is a side view of the support member of the twelfth embodiment. [Figure 27] FIG. 23 is a front view of the support member of the twelfth embodiment. [Figure 28] FIG. 13 is an end view of the support member of the thirteenth embodiment, cut along a plane perpendicular to the central axis of the heated tobacco cartridge. [Figure 29] FIG. 13 is an end view of a modified support member having a cutout portion. [Diagram 30] FIG. 13 is an end view of a modified support member having a cutout portion. [Diagram 31] FIG. 13 is an end view of a modified support member having a cutout portion. [Diagram 32] FIG. 13 is an end view of a modified support member having a cutout portion. [Diagram 33] FIG. 13 is an end view of a modified support member having a cutout portion. [Diagram 34] FIG. 13 is an end view of a modified support member having a cutout portion. [Diagram 35] FIG. 21 is an end view of a support member of a fourteenth embodiment, cut along a plane perpendicular to the central axis of the heated tobacco cartridge. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0044] An embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 shows a cross-sectional view of a heated tobacco cartridge 1 having a tobacco filler assembly 10 in this embodiment. As shown in this figure, the heated tobacco cartridge 1 is formed by integrating a substantially cylindrical tobacco filler assembly 10 filled with a large amount of tobacco filler 20, a heated tobacco support member 12 (hereinafter simply referred to as support member 12), and a filter 14 serving as a mouthpiece, which are arranged along the length direction and wrapped in a sheet-like packaging member 16.

[0045] The tobacco filler assembly 10 is formed by bundling long tobacco fillers 20 in the lengthwise direction and wrapping them in a sheet-like wrapping material 25 to form a substantially cylindrical shape. The tobacco filler 20 is made from a non-tobacco plant. However, the tobacco filler 20 may be made from tobacco.

[0046] The tobacco filler 20 is formed by mixing aerosol formers that generate aerosols, microcrystalline cellulose, additives that add flavor, preservatives, adhesives or thickeners, etc. with dried and ground non-tobacco plants, forming the mixture into a sheet, and then cutting the sheet into a predetermined width and length. However, the tobacco filler 20 may also be formed into a dust form.

[0047] The support member 12 allows the airflow containing the aerosol generated in the tobacco filler accumulation 10 to flow toward the filter 14. A first end face 30 of the support member 12 abuts against the end face of the tobacco filler accumulation 10, and a second end face 31 of the support member 12 abuts against the end face of the filter 14. The support member 12 has holes 40 extending from the first end face 30 to the second end face 31, and the airflow flows through the holes 40. The filter 14 is a sponge-like porous body and is formed in a cylindrical shape.

[0048] In this embodiment, the heated tobacco cartridge 1 is formed to have a diameter of 6.5 to 7.5 mm and a length of 40 to 49 mm. The tobacco filler assembly 10 has a length of 11 to 13 mm. However, it may have other dimensions.

[0049] FIG. 1 shows a cross-sectional view illustrating a usage form of a heated tobacco cartridge 1. The heated tobacco cartridge 1 is used by being attached to a heated tobacco body 2. The heated tobacco body 2 has an insertion section 51 into which the heated tobacco cartridge 1 is inserted. The insertion section 51 is provided with a needle-shaped or blade-shaped heating section 50 that is inserted into the tobacco filler 20 of the inserted heated tobacco cartridge 1. The heating section 50 generates heat while inserted into the tobacco filler 20, thereby generating an aerosol from the tobacco filler 20. In this state, the user can inhale an airflow containing an aerosol by inhaling through the filter 14.

[0050] The support member 12 will be described in detail. Fig. 2 shows a perspective view of the support member 12. The support member 12 is a cylindrical member made of a resin material. An example of the resin material that forms the support member 12 is silicon. However, the support member 12 may be made of other resin materials, or materials other than resin materials such as wood or metal (aluminum, etc.) that enhance the cooling effect.

[0051] 2, the support member 12 has a first end face 30, a second end face 31, and a peripheral surface portion 32. The support member 12 has a hole portion 40 penetrating from the first end face 30 to the second end face 31. The hole portion 40 functions as a flow path that allows an airflow containing an aerosol generated in the tobacco filler assembly 10 to flow to the filter 14 side.

[0052] 3 is a front view of the first end face 30 of the support member 12. In a cross section of the support member 12 cut along a plane perpendicular to the longitudinal direction, the support member 12 has the same shape from the first end face 30 to the second end face 31. Therefore, the cross section is also the same as that shown in FIG.

[0053] As shown in FIG. 3, the hole portion 40 has a first through hole 41 arranged on the outer periphery so as not to include the central axis C of the peripheral surface portion 32. The first through hole 41 has an elliptical shape, and has a shape that is longer in the circumferential direction than in the radial direction of the support member 12. Three first through holes 41 are provided along the circumferential direction. The ellipse centers P of the first through holes 41 are each arranged on an imaginary circle V having a certain radius from the central axis C. In addition, the ellipse centers P are each arranged at intervals of 120° in the circumferential direction around the central axis C. Therefore, the three first through holes 41 are arranged at equal intervals in the circumferential direction.

[0054] The first end face 30 has a hole 40 and a solid portion at the other part, and this solid portion abuts against the end face of the tobacco filler accumulation body 10. When the heating unit 50 of the heated tobacco body 2 is inserted, the tobacco filler accumulation body 10 receives a force in the longitudinal direction, and therefore the tobacco filler accumulation body 10 can be supported by the solid portion of the abutting support member 12. The hole 40 of this embodiment is disposed on the outer periphery of the support member 12 so as not to include the central axis C of the peripheral surface portion 32, and has a first through hole 41 having a shape longer in the circumferential direction than in the radial direction of the support member 12, so that the wall thickness between the outer periphery end of the first end face 30 and the outer periphery end of the first through hole 41 can be increased. Therefore, the solid portion of the outer periphery of the first end face 30 can be widened, so that the tobacco filler accumulation body 10 can be reliably supported. In addition, the wide solid portion of the outer periphery of the first end face 30 makes it possible to make the shape less likely to be crushed when the support member 12 is held by hand.

[0055] The area of ​​the holes 40 relative to the area of ​​the first end face 30 is calculated as the porosity. The porosity can be set in a range of 50% or less or 75% or more. Preferably, the porosity is set to 35 to 50%. In FIG. 3, the porosity is 34.3%. By making the first through holes 41 elongated in the circumferential direction of the support member 12, the porosity can be ensured to improve the fluidity of the airflow, while a thick solid portion can be formed in the outer periphery to improve the retention of the tobacco filler assembly 10.

[0056] Next, a first modified example of the support member will be described. Fig. 4 shows a perspective view of the support member 13 according to the first modified example. As shown in this figure, the support member 13 has a first end face 30, a second end face 31, and a peripheral surface portion 32, and a hole portion 40 is formed penetrating between the first end face 30 and the second end face 31. The hole portion 40 has a shape similar to that of the support member 12 shown in Figs. 2 and 3.

[0057] 4 has a large number of uneven portions 45 on the peripheral surface portion 32. The uneven portions 45 have a fine uneven shape along the circumferential direction of the support member 13. The uneven portions 45 are formed so as to extend over the entire length of the peripheral surface portion 32 of the support member 13 in the longitudinal direction from the first end face 30 to the second end face 31.

[0058] 5 shows a cross-sectional view of the support member 13 according to the first modified example provided in the heated tobacco cartridge 1, cut along a plane perpendicular to the length direction. As shown in this figure, a large number of small gaps are formed by the uneven portion 45 between the packaging member 16 wrapped around the outer periphery of the support member 13 and the peripheral surface portion 32 of the support member 13. These gaps are formed so as to be continuous from the first end surface 30 to the second end surface 31 of the support member 13, so that a part of the airflow can flow from the tobacco filler accumulation body 10 to the filter 14. This expands the flow path of the airflow by adding to the hole portion 40, and improves the fluidity.

[0059] Furthermore, by forming the uneven portion 45 on the peripheral surface portion 32, the support member 13 can be easily grasped by an assembly machine during manufacture of the heated tobacco cartridge 1, making manufacture easier.

[0060] Next, a second modified example of the support member will be described. Fig. 6 shows a front view of a first end face 61 of a support member 60 according to the second modified example. The support member 60 of this example differs from the support member 12 of Fig. 2 in the form of a hole portion 63. As shown in Fig. 6, the hole portion 63 does not include the central axis C of the peripheral surface portion 62, and has a first through hole 64 that is longer in the circumferential direction than in the radial direction.

[0061] The first through-hole 64 has a half-moon shape with an elliptical arc S on the side facing the peripheral surface portion 62 of the support member 60 and a straight portion T on the side facing the central axis C of the support member 60. The center position P of the ellipse having the elliptical arc S is located on an imaginary circle V having a certain radius from the central axis C of the peripheral surface portion 62. Three first through-holes 64 are formed along the circumferential direction, and each of the center positions P is on the imaginary circle V and is disposed at intervals of 120° from each other.

[0062] Since the first through hole 64 has an elliptical arc S on the outer periphery side facing the peripheral surface portion 62, it is possible to ensure a sufficient wall thickness between the outer periphery of the first through hole 64 and the peripheral surface portion 62. In the case of Fig. 3, the entire first through hole 41 is an elliptical arc, whereas in Fig. 6, only a part of the first through hole 64 is an elliptical arc. It is desirable that the first through hole has an elliptical arc at least in a range of 60° centered on the center position P of the ellipse.

[0063] Furthermore, the hole portion 63 has a second through hole 65 including the central axis C of the peripheral surface portion 62. The second through hole 65 has a circular shape centered on the central axis C. By providing the second through hole 65, the porosity of the support member 60 can be increased.

[0064] Next, a third modified example of the support member will be described. Fig. 7 shows a front view of a first end surface 71 of a support member 70 according to the third modified example. The support member 70 of this example also differs from the support member 12 of Fig. 2 in the form of the hole portion 73. As shown in Fig. 7, the hole portion 73 has a first through hole 74 that does not include the central axis C of the peripheral surface portion 72, and a second through hole 75 that includes the central axis C.

[0065] The first through holes 74 have a circular shape, and four of them are arranged at 90° intervals in the circumferential direction. The second through holes 75 have a circular shape, and are arranged with the central axis C as the center position. In this example, the first through holes 74 are made small in diameter to ensure the thickness of the outer periphery of the support member 70, while the number of first through holes 74 is increased to ensure the porosity. The porosity in this example is 24.8%.

[0066] Next, a fourth modified example of the support member will be described. Fig. 8 shows a front view of a first end surface 81 of a support member 80 according to the fourth modified example. The support member 80 of this example also differs from the support member 12 of Fig. 2 in the form of the hole portion 83. As shown in Fig. 8, the hole portion 83 has a first through hole 84 that does not include the central axis C of the peripheral surface portion 82, and a second through hole 85 that includes the central axis C.

[0067] The first through holes 84 have a circular shape, and five of them are arranged at intervals of 72°. The second through holes 85 have a circular shape, and are arranged with the central axis C as the center position. In this example, the number of the first through holes 84 is further increased to ensure the porosity. The porosity in this example is 29.7%.

[0068] Next, a fifth modified example of the support member will be described. Fig. 9 shows a front view of a first end surface 91 of a support member 90 according to the fifth modified example. The support member 90 of this example also differs from the support member 12 of Fig. 2 in the form of the hole portion 93. As shown in Fig. 9, the hole portion 93 has a first through hole 94 that does not include the central axis C of the peripheral surface portion 92, and a second through hole 95 that includes the central axis C.

[0069] The first through holes 94 have an outer circumferential side facing the peripheral surface portion 92, which is a convex arc toward the outer circumferential side, and the central axis C side is also a convex arc toward the outer circumferential side. The centers of the circles having the arcs on the outer circumferential side of the first through holes 94 are spaced apart at 72° intervals as in the fourth modified example, and five first through holes 94 are arranged along the circumferential direction. The second through holes 95 have a circular shape and are arranged with the central axis C as their center position. The porosity in this example is 27.4%.

[0070] Next, a sixth modified example of the support member will be described. FIG. 10 shows a front view of the first end face 101 of the support member 100 according to the sixth modified example. The support member 100 of this example also differs from the support member 12 of FIG. 2 in the form of the hole portion 103. As shown in FIG. 10, the hole portion 103 has three first through holes 104 in the circumferential direction that do not include the central axis C of the peripheral surface portion 102. The first through holes 104 have a circular shape, and the center positions are arranged at intervals of 120° in the circumferential direction of the first end face 101. The porosity in this example is 34.5%.

[0071] Although the embodiment of the present invention has been described above, the application of the present invention is not limited to this embodiment, and the present invention can be applied in various ways within the scope of its technical concept. For example, in this embodiment, only the support member 12 is provided between the tobacco filler assembly 10 and the filter 14, but a cooling member may be provided between the support member 12 and the filter 14.

[0072] Furthermore, the first through hole 41, which is longer in the circumferential direction than in the radial direction of the first end face 30, may have a shape other than an elliptical shape.

[0073] In addition, as an example of a modification of the support member 12 shown in Figure 2, support member 13 having unevenness 45 on peripheral surface 32 is shown, but unevenness may be provided on the peripheral surface of the support members according to the second to sixth modified examples.

[0074] Fig. 11 shows a cross-sectional view of a heated tobacco cartridge 1001 in this embodiment. As shown in this figure, the heated tobacco cartridge 1001 is formed by integrating an aerosol-forming substrate 1010 provided at one end, a heated tobacco support member 1012 (hereinafter simply referred to as the support member 1012), and a filter 1014 serving as a mouthpiece, which are arranged along the length direction and wrapped in a sheet-like packaging member 1016. Note that the support member 1012 is shown diagrammatically in Fig. 11. The configuration of the heated tobacco cartridge 1001 in this embodiment is common to all embodiments except for the support member 1012.

[0075] The aerosol-forming substrate 1010 is formed in such a manner that a long tobacco filler 1020 is bundled along the length direction and wrapped in a sheet-like wrapping material 1025 to form a substantially cylindrical shape. The tobacco filler 1020 is formed from a non-tobacco plant. However, the tobacco filler 1020 may be formed from tobacco.

[0076] The tobacco filler 1020 is formed by mixing aerosol formers that generate aerosols, microcrystalline cellulose, additives that add flavor, preservatives, adhesives or thickeners, etc. with dried and ground non-tobacco plants, forming the mixture into a sheet, and cutting the sheet to a predetermined width and length. However, the tobacco filler 1020 may be formed into different shapes, such as fine dust or granules.

[0077] The support member 1012 has a flow path 1012c that allows an airflow containing an aerosol generated in the aerosol-forming substrate 1010 to flow toward the filter 1014. A first end surface 1012a of the support member 1012 abuts against an end surface of the aerosol-forming substrate 1010, and a second end surface 1012b of the support member 1012 abuts against an end surface of the filter 1014. The support member 1012 allows an airflow to flow between the aerosol-forming substrate 1010 and the filter 1014, and supports the aerosol-forming substrate 1010 in the length direction. The filter 1014 is a sponge-like porous body and is formed in a cylindrical shape.

[0078] In this embodiment, the heated tobacco cartridge 1001 is formed to have a diameter of 6.5 to 7.5 mm and a length of 40 to 49 mm. The aerosol-forming substrate 1010 has a length of 11 to 13 mm. However, it may have other dimensions.

[0079] FIG. 12 shows a cross-sectional view illustrating a usage form of the heated tobacco cartridge 1001. The heated tobacco cartridge 1001 is attached to a heated tobacco body 1002 for use. The heated tobacco body 1002 has an insertion section 1051 into which the heated tobacco cartridge 1001 is inserted. The insertion section 1051 is provided with a needle-shaped or blade-shaped heating section 1050 that is inserted into the tobacco filler 1020 of the inserted heated tobacco cartridge 1001. The heating section 1050 generates heat while inserted into the tobacco filler 1020, thereby generating an aerosol from the tobacco filler 1020. In this state, the user inhales through the filter 1014 to inhale an airflow containing the aerosol.

[0080] The support member 1012 will be described in detail. The support member 1012 is made of a resin material. An example of the resin material that forms the support member 1012 is silicone. However, the support member 1012 may be made of other resin materials, or materials other than resin materials such as wood or metal (aluminum, etc.) that enhance the cooling effect.

[0081] A support member 1030 according to a first embodiment will be described. FIG. 13 shows a side view of the support member 1030, and FIG. 14 shows a front view (FIG. 14(a)) and a rear view (FIG. 14(b)) of the support member 1030. The support member 1030 has a first end face 1035 and a second end face 1036 that constitute both end faces along the longitudinal direction of the heated tobacco cartridge 1001. The support member 1030 has a support part 1031 that is provided inclined with respect to the central axis C1 of the heated tobacco cartridge 1001 along the longitudinal direction of the heated tobacco cartridge 1001, and a lateral extension part 1032 that extends outward from the support part 1031. The lateral extension part 1032 extends from the support part 1031 in four directions that are mutually orthogonal. The support portion 1031 is inclined with respect to the central axis C1 along the Y and Z directions in the figure, and is not inclined in the X direction in the figure. However, the support portion 1031 may be inclined with respect to all of the X, Y, and Z directions in the figure.

[0082] An outer edge 1033 of the lateral extension 1032 contacts the packaging member 1016 of the heated tobacco cartridge 1001 shown by the dashed line in Fig. 14. The four regions surrounded by the lateral extension 1032 and the packaging member 1016 each become a flow path 1037 penetrating from a first end surface 1035 to a second end surface 1036 of the support member 1030, and the airflow containing the aerosol generated from the aerosol-forming substrate 1010 of the heated tobacco cartridge 1001 can flow toward the filter 1014.

[0083] In the support member 1030 of this example, the flow path 1037 is inclined with respect to the central axis C1, so that the flow distance of the airflow containing the aerosol generated from the aerosol-forming substrate 1010 is increased, and the cooling effect of the airflow can be improved. In addition, the cross-sectional area of ​​the flow path 1037 changes along the longitudinal direction, so that turbulence is generated in the airflow and the airflow is made uniform. Furthermore, since the outer edge portion 1033 of the side extension portion 1032 that contacts the packaging member 1016 is inclined, the support of the packaging member 1016 is strengthened, and the flow path 1037 is less likely to be crushed by an external force from the side.

[0084] A support member 1040 according to a second embodiment will be described. Fig. 15 shows a front view of the support member 1040, and Fig. 16 shows an enlarged perspective view of the support member 1040 near a support portion 1041. The support member 1040 has four side extension portions 1042 whose outer edge portions 1043 contact the packaging member 1016. The side extension portions 1042 are arranged so as to face four directions perpendicular to each other from the central axis C2 of the support member 1040. The side extension portions 1042 are connected by support portions 1041 provided at any position in the longitudinal direction of the support member 1040, and the side extension portions 1042 are not directly connected to each other.

[0085] In this example, the support portion 1041 is provided at the center of the support member 1040. The support portion 1041 is formed by connecting rod-shaped members in a cross shape. The lateral extension portion 1042 has a recess 1042a that opens in the direction of the central axis C2 of the support member 1040, and the four ends of the support portion 1041 are disposed in and connected to the recess 1042a. The support portion 1041 is not limited to being rod-shaped, and may have other shapes such as a plate shape.

[0086] In the support member 1040, the four regions surrounded by the side extension portions 1042 and the packaging member 1016 become flow paths 1047 that allow the airflow containing the aerosol generated from the aerosol-forming substrate 1010 to flow. The four side extension portions 1042 may have different shapes. Since the side extension portions 1042 are connected by the support portion 1041 that does not extend in the longitudinal direction, the shape of each of them can be designed relatively freely. In addition, since the side extension portions 1042 are not directly connected to each other, a slight gap is generated between the flow paths 1047, and the airflow in each of the flow paths 1047 is made uniform.

[0087] A support member 1060 according to a third embodiment will be described. Fig. 17 shows an end view of the support member 1060 cut along a plane perpendicular to the central axis C1 of the heated tobacco cartridge 1001. The support member 1060 has the same cross-sectional shape along the longitudinal direction. Hereinafter, only end views are shown for support members having the same cross-sectional shape along the longitudinal direction.

[0088] The support member 1060 has two side extensions 1062 extending radially from a center position C3 (not shown) of the end face shape. The side extensions 1062 form an angle of 180° with each other. Therefore, the two side extensions 1062 are arranged in a straight line. An outer edge 1063 of the side extensions 1062 contacts the packaging member 1016. Two flow paths 1067 are formed by the side extensions 1062 and the packaging member 1016.

[0089] A support member 1070 according to a fourth embodiment, which is a modified example of the third embodiment, will be described. FIG. 18 shows an end view of the support member 1070 cut along a plane perpendicular to the central axis C1 of the heated tobacco cartridge 1001. The support member 1070 has four side extensions 1072 extending radially from a center position C4 (not shown) of the end face shape. The side extensions 1072 form an angle of 90° with each other. Therefore, a cross-shaped end face shape is formed by the four side extensions 1072. An outer edge 1073 of the side extensions 1072 contacts the packaging member 1016. The side extensions 1072 and the packaging member 1016 form four flow paths 1077.

[0090] As in the support member 1060 according to the third embodiment and the support member 1070 according to the fourth embodiment, the support member has a lateral extension extending radially from the center position of the end face shape, which simplifies the shape of the support member and facilitates its manufacture. In addition, by adjusting the thickness of the lateral extension, it is easy to balance the support force for the aerosol-forming substrate 1010 and the fluidity of the airflow. The number of lateral extensions is not limited to two or four, and may be any other number.

[0091] A support member 1080 according to the fifth embodiment will be described. FIG. 19 shows a perspective view of the support member 1080. The support member 1080 has four side extensions 1082 similar to the support member 1070 according to the fourth embodiment. The support member 1080 has a lid portion 1084 whose outer edge portion 1084a contacts the packaging member 1016 at both ends of the side extensions 1082. The outer shape of the lid portion 1084 has a circular shape whose outer edge portion 1084a contacts the packaging member 1016 over the entire circumference. The lid portion 1084 also has a communication hole portion 1084b that communicates with a space portion 1086 formed between the side extensions 1082 adjacent in the circumferential direction. Since four spaces 1086 are formed in the circumferential direction, four communication hole portions 1084b are also formed. Since the supporting member 1080 has the lid portion 1084, the area of ​​the end face in contact with the aerosol-forming substrate 1010 can be increased, and the aerosol-forming substrate 1010 can be supported more firmly.

[0092] The support member according to the first to fourth embodiments may have a connecting portion that connects at least two circumferentially adjacent side extension portions in the circumferential direction. The connecting portion may be formed so as to extend over the entire circumference of the support member, or may be formed over a part of the circumference of the support member. The support member 1090 according to the sixth embodiment shown in FIG. 20 is the support member 1060 according to the third embodiment provided with a connecting portion 1093. The support member 1090 has two side extension portions 1092 that extend radially from the central axis C1 of the heated tobacco cartridge 1001, and the outer edge portion 1921 of the side extension portion 1092 contacts the packaging member 1016. The side extension portions 1092 are connected by a connecting portion 1093 having a cross section of an arc shape. An outer peripheral surface 1093a of the connecting portion 1093 contacts the packaging member 1016. As a result, since the connecting portion 1093 is present on the peripheral edge portion of the supporting member 1090, the supporting function of the aerosol-forming substrate 1010 can be improved.

[0093] A support member 1100 according to a seventh embodiment will be described. FIG. 21 shows an end view of the support member 1100 cut along a plane perpendicular to the central axis C1 of the heated tobacco cartridge 1001. The support member 1100 has a support part 1101 having a circular cross section provided along the central axis C1 of the heated tobacco cartridge 1001, and an outer peripheral part 1002 having a circular cross section arranged outside the support part 1101. In this specification, "along the central axis" broadly includes a mode of extending toward the extension direction of the central axis C1 of the heated tobacco cartridge 1001. Specifically, in addition to a mode of extending linearly toward the extension direction of the central axis C1, a mode of extending curvedly, a mode of extending in a wave shape, a mode of extending in a spiral shape, or a mode of a combination of these is included. The outer peripheral part 1002 is connected to the outer edge of the support part 1101 by a connecting part 1104. An outer edge 1103 of the outer periphery 1002 contacts the packaging material 1016. The support portion 1101 and the outer periphery 1102 are arranged concentrically, and the connecting portion 1104 is arranged along the radial direction. The support portion 1101 has a through hole 1106 in the center.

[0094] An outer edge 1103 of the outer periphery 1102 contacts the packaging member 1016, but since the outer edge 1103 is provided over the entire circumference, there is almost no gap between the support member 1100 and the packaging member 1016. In the support member 1100, a flow path 1107 is formed between the support part 1101 and the outer periphery 1102. In addition, the through hole part 1106 of the support part 1101 also serves as a flow path for the airflow.

[0095] In this manner, the support member 1100 has the support part 1101 and the outer peripheral part 1102, and therefore the support member 1100 supports both the radial support part and the peripheral part of the aerosol-forming substrate 1010. This makes it possible to effectively prevent the aerosol-forming substrate 1010 from falling off. Note that the support part 1101 does not necessarily have to have the through-hole part 1106.

[0096] A support member 1110 according to an eighth embodiment, which is a modified example of the seventh embodiment, will be described. FIG. 22 shows an end view of the support member 1110 cut along a plane perpendicular to the central axis C1 of the heated tobacco cartridge 1001. The support member 1110 has a support part 1111 having a circular cross section provided along the central axis C1 of the heated tobacco cartridge 1001, and four plate-shaped outer peripheral parts 1112 connected to the outer edge of the support part 1111. A through-hole part 1116 is formed in the support part 1111. The outer peripheral parts 1112 are arranged at an angle of 90° in the circumferential direction and extend along the radial direction. An outer edge part 1113 of the outer peripheral part 1112 contacts the packaging member 1016.

[0097] In the support member 1110, four flow paths 1117 are formed in the circumferential direction by the support portion 1111, the outer circumferential portion 1112, and the packaging member 1016. In addition, the through-hole portion 1116 of the support portion 1111 also serves as a flow path for the airflow. In this manner, the outer circumferential portion 1112 may be formed in a plate shape to form the flow paths 1117 between the outer circumferential portion 1112 and the packaging member 1016. Note that the support portion 1111 does not have to have the through-hole portion 1116.

[0098] A support member 1120 according to a ninth embodiment, which is a modified example of the seventh embodiment, will be described. FIG. 23 shows an end view of the support member 1120 cut along a plane perpendicular to the central axis C1 of the heated tobacco cartridge 1001. The support member 1120 has a support part 1121 having a circular cross section provided along the central axis C1 of the heated tobacco cartridge 1001, and four outer peripheral parts 1122 connected to the outer edge of the support part 1121. A through hole part 1126 is formed in the support part 1121. The outer peripheral parts 1122 have a fan-shaped cross section that widens from the center side toward the outer peripheral side. The outer peripheral parts 1122 are each arranged at an angle of 90° in the circumferential direction. An outer edge part 1123 of the outer peripheral parts 1122 contacts the packaging member 1016.

[0099] In the support member 1120, four flow paths 1127 are formed in the circumferential direction by the support part 1121, the outer circumferential part 1122, and the packaging member 1016. In addition, the through-hole part 1126 of the support part 1121 also serves as a flow path for the airflow. By making the outer circumferential part 1122 fan-shaped in this manner, the area for supporting the aerosol-forming substrate 1010 is increased. Note that the support part 1121 does not have to have the through-hole part 1126.

[0100] A support member 1130 according to a tenth embodiment, which is a modified example of the embodiment in FIG. 17, will be described. FIG. 24 shows an end view of the support member 1130 cut along a plane perpendicular to the central axis C1 of the heated tobacco cartridge 1001. The support member 1130 has a support portion 1131 having a square cross section provided along the central axis C1 of the heated tobacco cartridge 1001, and four plate-shaped outer peripheral portions 1132 connected to the outer edge of the support portion 1131. A through-hole portion 1136 is formed in the support portion 1131. The outer peripheral portion 1132 extends from a corner of the support portion 1131 along the radial direction. An outer edge portion 1133 of the outer peripheral portion 1132 contacts the packaging member 1016.

[0101] In the support member 1130, four flow paths 1137 are formed in the circumferential direction by the support portion 1131, the outer circumferential portion 1132, and the packaging member 1016. In addition, the through-hole portion 1136 of the support portion 1131 also serves as a flow path for the air current. In this manner, the support portion 1131 can have various shapes, such as a square cross-sectional shape. Note that the support portion 1131 does not have to have the through-hole portion 1136.

[0102] A support member 1140 according to an eleventh embodiment will be described. FIG. 25 shows a perspective view of the support member 1140. The support member 1140 has a support portion 1141 having a circular cross section provided along the central axis C1 of the heated tobacco cartridge 1001, and a side extension portion 1142 extending outward from the support portion 1141. The support portion 1141 has a through hole portion 1146. The side extension portion 1142 is formed in a spiral shape along the longitudinal direction of the support portion 1141. An outer edge portion 1143 of the side extension portion 1142 contacts the packaging member 1016. Therefore, the area surrounded by the support portion 1141, the side extension portion 1142, and the packaging member 1016 becomes the flow path of the airflow. Since the side extension portion 1142 is spiral, the flow path of the airflow is longer, and the cooling effect of the airflow can be increased. In addition, since the outer edge portion 1143 in contact with the packaging member 1016 extends in the circumferential and longitudinal directions, the flow path is less likely to be crushed by an external force from the side.

[0103] A support member 1150 according to a twelfth embodiment will be described. Fig. 26 shows a side view of the support member 1150, and Fig. 27 shows a front view of the support member 1150. The support member 1150 has a support portion 1151 having a circular cross section and provided along the central axis C1 of the heated tobacco cartridge 1001, a lateral extension portion 1152 extending outward from the support portion 1151, and a second lateral extension portion 1158 extending from the lateral extension portion 1152.

[0104] The lateral extension portion 1152 is formed in a plate shape extending radially from the central portion 1151. An outer edge portion 1153 of the lateral extension portion 1152 contacts the packaging member 1016. The lateral extension portion 1152 is longer in the longitudinal direction than the central portion 1151, and a connecting portion 1154 is provided on the lateral extension portion 1152 on the tip side of the end face of the central portion 1151, the connecting portion 1154 being aligned along the radial direction of the central portion 1151. The lateral extension portion 1152 is connected to one end of the connecting portion 1154, and a second lateral extension portion 1158 is connected to the other end of the connecting portion 1154.

[0105] The second lateral extension 1158 is a plate-like member extending radially from the central portion 1151, and is connected only to the lateral extension 1152 by the connecting portion 1154, with a gap between the central portion 1151 and the second lateral extension 1158. The outer edge 1159 of the second lateral extension 1158 contacts the packaging member 1016. The area surrounded by the central portion 1151, the lateral extension 1152, the second lateral extension 1158, and the packaging member 1016 becomes the airflow flow path 1157. In this example, there is one second lateral extension 1158, but by changing the shape of the connecting portion 1154, two or more second lateral extensions 1158 can be provided in the circumferential direction. Since the second lateral extension 1158 is connected only to the lateral extension 1152 via the connecting portion 1154, the number of the second lateral extensions 1158 can be easily changed as necessary.

[0106] A support member 1160 according to a thirteenth embodiment will be described. FIG. 28 shows an end view of the support member 1160 cut along a plane perpendicular to the central axis C1 of the heated tobacco cartridge 1001. The support member 1160 has a main body 1161 having a substantially circular cross section and provided along the central axis C1 of the heated tobacco cartridge 1001. An outer edge 1163, which is the outer peripheral surface of the main body 1161, contacts the packaging member 1016. The main body 1161 has a cutout 1162 formed by cutting out a part of the outer edge 1163. The main body 1161 also has a through hole 1166 in the center.

[0107] The cutout portion 1162 is a narrow groove, and the bottom portion has an arc-shaped cross section. The cutout portion 1162 serves as a flow path for the airflow. The through-hole portion 1166 also serves as a flow path for the airflow. The balance between the support function of the aerosol-forming substrate 1010 and the fluidity of the airflow can be adjusted depending on the shape and number of the cutout portion 1162 and the presence or absence, shape and number of the through-hole portion 1166. A modified example having a cutout portion will be described below.

[0108] The support member 1170 of Fig. 29(a) has two notches 1172 arranged at an angle of 180° to each other. The support member 1180 of Fig. 29(b) has two notches 1182 arranged at an angle of approximately 45° to each other. The support member 1190 of Fig. 29(c) has two notches 1192 whose bottoms are linear in cross section, and has a through hole 1196.

[0109] The support member 1200 in Fig. 30(a) has one slightly wide cutout 1202. The support member 1210 in Fig. 30(b) has a slightly wide cutout 1212 and a through hole 1216 in the center. The support member 1220 in Fig. 30(c) has two cutouts 1222, and the through hole 1226 has an elliptical cross section. The support member 1230 in Fig. 30(d) has three cutouts 1232 and two through holes 1236.

[0110] A support member 1240 in Fig. 31(a) has a cutout portion 1242 having a substantially triangular groove-shaped cross section. A support member 1250 in Fig. 31(b) has a cutout portion 1252 having a substantially triangular groove-shaped cross section and a through hole portion 1256. A support member 1260 in Fig. 31(c) has two cutout portions 1262 having a substantially triangular groove-shaped cross section and a through hole portion 1266. A support member 1270 in Fig. 31(d) has four cutout portions 1272 having a substantially triangular groove-shaped cross section.

[0111] A support member 1280 in FIG. 32(a) has a number of cutouts 1282, each having a substantially triangular groove-like cross section and smaller than the cutout 1242 in FIG. 31(a), over the entire circumference in the circumferential direction. A support member 1290 in FIG. 32(b) has a number of cutouts 1292, each having a substantially triangular groove-like cross section, over the entire circumference in the circumferential direction, and has a through hole 1296 in the center. A support member 1300 in FIG. 32(c) has a number of cutouts 1302, each having a substantially triangular groove-like cross section, over a partial region in the circumferential direction, and has two through holes 1306. A support member 1310 in FIG. 32(d) has a number of cutouts 1312, each having a substantially triangular groove-like cross section, over a partial region in the circumferential direction.

[0112] A support member 1320 in FIG. 33(a) has a number of notches 1322 formed by a smoothly curved groove over the entire circumference in the circumferential direction. A support member 1330 in FIG. 33(b) has a number of notches 1332 formed by a smoothly curved groove over the entire circumference in the circumferential direction, and has a through hole 1336 in the center. A support member 1340 in FIG. 33(c) has a number of notches 1342 formed by a smoothly curved groove over a portion in the circumferential direction, and has two through holes 1346. A support member 1350 in FIG. 33(d) has a number of notches 1352 formed by a smoothly curved groove over a portion in the circumferential direction, and has three through holes 1356.

[0113] A support member 1360 in FIG. 34(a) has a number of cutouts 1362 having a substantially square cross-sectional shape all around the circumference in the circumferential direction. A support member 1370 in FIG. 34(b) has a number of cutouts 1372 having a substantially square cross-sectional shape all around the circumference in the circumferential direction, and has a through hole 1376 in the center. A support member 1380 in FIG. 34(c) has a number of cutouts 1382 having a substantially square cross-sectional shape in a part of the circumferential direction, and has three through holes 1386. A support member 1390 in FIG. 34(d) has a number of cutouts 1392a having a substantially square cross-sectional shape, a cutout 1392b having a substantially triangular cross-sectional shape, and a cutout 1392c formed by a smooth curved surface, each at different positions in the circumferential direction.

[0114] In this way, the support member having the cutout can take various forms. In any case, the gap between the cutout and the packaging member 1016 can be used as a flow path for the airflow. In each embodiment in which the cutout is provided, the area of ​​the solid part of the support member is increased, so that the support function of the aerosol-forming substrate 1010 can be improved.

[0115] A support member 1400 according to a fourteenth embodiment will be described. Fig. 35 shows an end view of the support member 1400 according to the fourteenth embodiment cut along a plane perpendicular to the central axis C1 of the heated tobacco cartridge. The support member 1400 has five through-holes 1406 in the central and peripheral portions.

[0116] The support member 1400 can adjust the fluidity of the airflow from the aerosol-forming substrate 1010 by adjusting the porosity, which is the ratio of the cross-sectional area of ​​the through-hole portion 1406 to the cross-sectional area of ​​the support member 1400. In addition, the airflow resistance can be adjusted by the thickness and material of the packaging member 1016. Since there is a slight gap between the packaging member 1016 and the support member 1400, when the filter 1014 is sucked and the inside of the packaging member 1016 becomes a negative pressure state, outside air is taken in through the packaging member 1016. The degree to which outside air is taken in changes depending on the airflow resistance of the packaging member 1016.

[0117] When the airflow resistance of the packaging member 1016 is less than 30 kPa, the airflow resistance is low, so that outside air can be easily taken in, and a mild taste can be obtained by combining with the airflow from the aerosol-forming substrate 1010. In this case, the porosity of the support member 1400 is preferably less than 50%.

[0118] When the airflow resistance of the packaging member 1016 is 30 kPa or more and less than 70 kPa, the airflow resistance is in the medium range, and by appropriately taking in outside air, a good balance with the airflow from the aerosol-forming substrate 1010 can be achieved. In this case, the porosity of the support member 1400 is preferably 30 to 70%.

[0119] When the airflow resistance of the packaging member 1016 is 70 kPa or more, the airflow resistance is high, making it difficult to take in outside air, and the airflow from the aerosol-forming substrate 1010 becomes dominant, resulting in a strong, satisfying taste. In this case, the porosity of the support member 1400 is preferably 50% or more.

[0120] When the porosity (%) of the support member 1400 is A and the airflow resistance (kPa) of the packaging member 1016 is B, it is desirable to satisfy any one of the following relational expressions (1) to (4). A×B=1050~10500 (1) A2×B=5000~25000 (2) A3×B=160,000~400,000 (3) A4×B=5000000~6500000 (4)

[0121] Although the embodiment of the present invention has been described above, the application of the present invention is not limited to this embodiment, and can be applied in various ways within the scope of its technical concept. For example, in this embodiment, only the support member 1012 is provided between the aerosol-forming substrate 1010 and the mouthpiece 1014, but another member such as a cooling member may be provided between the support member 1012 and the mouthpiece 1014. Also, the number of lateral extensions in each embodiment may be one or more. [Explanation of symbols]

[0122] 1. Heat-not-burn tobacco cartridge 2. Heat-not-burn tobacco device 10 Tobacco filler assembly 12 Support member 14 Filters 16 Packaging materials 20 Tobacco filling 25 Packaging 30 1st end face 31 Second end face 32 Peripheral part 40 Hole 41 First through hole 45 Uneven part 50 Heating section 51 Insertion section 1101 Heated tobacco cartridge 1002 Heat-not-burn tobacco body 1010 Aerosol forming substrate 1012 Support member 1041014 Filter 1016 Packaging materials 1020 Tobacco filling 1025 Packaging 1030 Support member 1031 Support part 1032 Lateral extension 1033 Outer edge 1035 1st end face 1036 Second end face 1037 Channel 1040 Support member 1041 Support part 1042 Lateral extension 1043 Outer edge 1047 Channel 1050 Heating section 1051 Insertion part

Claims

[Claim 1] A support member provided in a heated tobacco cartridge, a support member for supporting the aerosol-forming substrate, the support member being disposed between the aerosol-forming substrate and another member; a first end surface, a second end surface, and a peripheral surface portion, and a hole portion is formed penetrating between the first end surface and the second end surface; A plurality of concave-convex portions having a concave-convex shape are formed on the entire peripheral surface portion along a circumferential direction, The plurality of uneven portions have curved surfaces. A support member comprising:

Images