Sealing member for aerosol suction cartridge

Abstract

To provide a sealing member for an aerosol suction cartridge that can ensure both heat stability and breathability. [Solution] A sealing member 9 for an aerosol suction cartridge, characterized in that the sealing member is formed into a cylindrical shape by forming a sheet-like material into a shape that includes one or more of a roll shape 9a, a folded shape 9b, or a random shape 9c, and is formed so that the winding axis in the case of a roll shape, or the folding line in the case of a folded shape or random shape, is oriented in the longitudinal direction of the aerosol suction cartridge as a whole.

Description

[Technical Field]

[0001] The present invention relates to an induction heating type aerosol suction cartridge, and a sealing member and sealing mechanism used therein.

[0002] In recent years, tobacco products that use a method of heating a tobacco cartridge containing tobacco components and inhaling the vaporized tobacco components without using a flame have become widely known. In addition, due to the diversification of preferences, aerosol inhalation cartridges that use cartridge products that allow users to enjoy the aroma and flavor of plants that do not contain tobacco components, like cigarettes, without using a flame, are also becoming known.

[0003] Such an aerosol suction cartridge generates an aerosol by heating an aerosol-forming substrate in which a filler has been accumulated. Methods for heating an aerosol-forming substrate include (1) a blade heating method in which the aerosol suction cartridge is inserted into a heating blade installed inside a heating device and the heating blade is electrically heated to heat the filler (see, for example, Patent Document 1), and (2) an induction heating method in which an induction heating element, which is a component mainly composed of a ferromagnetic material, is provided inside the aerosol-forming substrate in advance, and an alternating magnetic field generated by an induction heating device D generates hysteresis loss and Joule heat inside the induction heating element, thereby heating (induction heating), thereby heating the filler (see, for example, Patent Document 2).

[0004] 9 is a schematic side cross-sectional view of an induction heating type aerosol suction cartridge 100 that uses a conventional aerosol-forming substrate 101. The aerosol suction cartridge 100 has a sealing member 108, an aerosol-forming substrate 101, a support member 105, and a mouthpiece 106 linearly arranged, and is wrapped in an exterior member 107 to form a cylindrical shape.

[0005] The aerosol suction cartridge 100 has an elongated cylindrical shape overall, and includes an aerosol-forming substrate 101 housing an accumulation of fillers 104 that generate an aerosol when heated, a support member 105 for preventing the aerosol-forming substrate 101 from moving or the exterior member 107 from bending, a mouthpiece 106 that allows airflow from the aerosol-forming substrate 101 to pass through and enables the user to inhale the aerosol, and a cylindrical sealing member 108 that is disposed at the opposite end of the mouthpiece 106. These are arranged along the longitudinal direction and integrally formed by being wrapped cylindrically with the sheet-like exterior member 107. Here, the exterior member 107 is made of a flexible material such as paper, and the sealing member 108 and the support member 105 are made of paper, resin such as plastic, or rubber such as silicone.

[0006] The aerosol-forming substrate 101 has a cylindrical filler 104 housed inside a cylindrical packaging member 103 having an opening at the center, and an induction heating member 102 for induction heating inserted into the filler 104. The induction heating member 102 is disposed along the height direction of the cylinder, and its length is approximately the same as the length of the packaging member 103 in the longitudinal direction, i.e., the length of the aerosol-forming substrate 101, and is physically close to the support member 105 and the sealing member 108.

[0007] In the case of an induction heating system, the aerosol-forming substrate 101 of the aerosol suction cartridge 100 is inserted into the insertion port D1 of the induction heating device D from the sealing member 108 side as shown in FIG. 10 and heated. The temperature sensor D2 of the induction heating device D is located directly below the insertion port D1, which corresponds to the position directly below the center of the cylinder when the aerosol suction cartridge 100 is inserted. The sealing member 108 appropriately transmits the heat generated by the induction heating member 102, thereby optimizing the operation of the temperature sensor D2. In other words, if the sealing member 108 is not present or the induction heating member 133 is too close to the temperature sensor, excessive heat generated by the induction heating member 102 may be transmitted to the temperature sensor, causing the temperature sensor D2 to react and stop the operation of the induction heating device D before sufficient aerosol is generated. On the other hand, if the heat is shielded or the distance is increased more than necessary, the temperature sensor D2 will not react, causing the induction heating device D to operate excessively, which may lead to an accident or malfunction.

[0008] Furthermore, to ensure the breathability of the aerosol suction cartridge 100, a vent hole, which is a through-hole, is formed in the sealing member 108. However, if this hole is too large, the temperature sensor will overreact as mentioned above, while if the hole is missing or too small, the temperature sensor will not react as much as necessary and breathability will be poor. This problem is particularly pronounced in conventional sealing members 108, where the vent holes are formed exclusively near the center of the bottom surface.

[0009] On the other hand, since the sealing member 108 is necessary for the aerosol suction cartridge 100, it is preferable to reduce the production cost per unit as much as possible. [Prior art documents] [Patent documents]

[0010] [Patent Document 1] Special Publication No. 2015-519915 [Patent Document 2] Japanese Patent Publication No. 2021-175399 Summary of the Invention [Problem to be solved by the invention]

[0011] In view of the above circumstances, the present invention aims to provide a sealing member, a sealing mechanism, and an aerosol suction cartridge using the same, which can improve thermal stability, improve breathability, or reduce costs. [Means for solving the problem]

[0012] In order to solve the above problem, the invention described in claim 1 is a sealing member for an aerosol suction cartridge, characterized in that it has a main body portion having an overall cylindrical shape and one or more openings formed in a direction perpendicular to the bottom surface of the main body portion, and the circle forming the bottom surface is closed over part or all of the height direction of the main body portion within a range of at least a radius of 0.5 mm from its center. The invention described in claim 2 is a sealing member for an aerosol suction cartridge, which has a main body shaped like a cylinder with a portion of its outer periphery cut out in the vertical direction, and when attached to the central hole of the circular tube of the outer casing of the aerosol suction cartridge, it blocks part or all of the main body in the vertical direction within a range of at least a radius of 0.5 mm from the center of the bottom surface of the cylinder, and the gap between the inner surface of the outer casing and the outer surface of the sealing member forms one or more openings. The invention described in claim 3 is a sealing member for an aerosol suction cartridge, characterized in that the sealing member described in claim 1 or 2 is provided with a support member within one bottom surface of the main body portion, which is in contact with the aerosol-forming substrate when provided in the aerosol suction cartridge, and the opening is formed on the bottom surface at a location other than where the support member is provided. The invention described in claim 4 is the sealing member described in any one of claims 1 to 3, characterized in that the aspect ratio of the opening is 24 or less and the opening rate is 2% or more and 90% or less. The invention described in claim 5 is a sealing member according to any one of claims 1 to 3, characterized in that it is made of a material including natural fibers, synthetic fibers, natural leather, synthetic leather, natural resin, natural rubber, plastic, synthetic rubber, metal, paper, wood, bamboo, or ceramics. A sixth aspect of the present invention provides the sealing member according to any one of the first to third aspects, wherein the opening is formed so as to surround the blocked portion. The invention described in claim 7 is a sealing member for an aerosol suction cartridge, characterized in that it is made of a transparent or translucent material and has one or more ventilation openings formed therein. The invention described in claim 8 is a sealing member for an aerosol suction cartridge, characterized in that the sealing member is made of a material including natural fibers, synthetic fibers, natural leather, synthetic leather, natural resin, natural rubber, plastic, synthetic rubber, metal, paper, wood, bamboo, or ceramics, has a hollow tube shape overall, and the difference in dimension between the outer diameters of the hollow tube is 1.0 to 3.0 mm. The invention described in claim 9 is a sealing structure for an aerosol suction cartridge, characterized in that a non-closed notch formed on the side of an outer casing of the aerosol suction cartridge is bent inward of the outer casing, using the part connected to the outer casing as a fulcrum, and the non-closed shape supports an aerosol-forming substrate installed inside the outer casing. The invention described in claim 10 is a sealing member for an aerosol suction cartridge, characterized in that it has an overall spherical shape and has at least three ventilation through holes formed in its radial direction, at least three of the through holes passing through the center of the sphere and intersecting each other perpendicularly at the center. The invention described in claim 11 is a sealing member for an aerosol suction cartridge, characterized in that the sealing member has an overall plate-like shape, has one or more bent portions formed therein, and is made of a flexible material. The invention described in claim 12 is a sealing member for an aerosol suction cartridge, characterized in that it is shaped like a cone, a truncated cone, or a cylinder, and has a through hole formed in the lower bottom surface or an air vent groove formed in the side surface in the height direction of the cone, truncated cone, or cylinder. The invention of claim 13 is the sealing member of claim 12, characterized in that it has an insert member for fixing the position at the center of the upper bottom surface of the cylinder or the truncated cone. The invention described in claim 14 is a sealing member for an aerosol suction cartridge, characterized in that it comprises a main body portion having an overall hollow tubular shape and an airflow adjustment valve at the upstream end of the main body portion in the airflow direction. The invention described in claim 15 is a sealing member described in claim 14, characterized in that the airflow adjustment valve is formed by one or more notches formed on the bottom surface covering one end of the opening of the main body portion. The invention described in claim 16 is a sealing member for an aerosol suction cartridge, comprising a main body portion having an overall cylindrical shape and one or more openings formed in a direction perpendicular to the bottom surface of the main body portion, wherein the main body portion, when attached to the central hole of the circular tube of the outer casing member of the aerosol suction cartridge, has a protrusion that protrudes radially from the outer casing member in a side view. The invention described in claim 17 is the sealing member described in claim 16, characterized in that the protrusion is a cylindrical member formed integrally with the main body on the bottom surface of the main body on the upstream side of the air flow, and the outer diameter of the cylindrical member is set to be larger than the outer diameter of the outer member. In the invention described in claim 18, the protrusion is one or more uneven shapes, groove shapes, or protrusion shapes formed integrally with the main body on the side surface of the main body on the upstream side of the air flow. 17. The sealing member according to claim 16, wherein: The invention described in claim 19 is the sealing member described in claim 16, characterized in that one or more openings of a predetermined size and arrangement are formed on the side of the exterior member, and the protrusions are formed on the side of the main body portion of a size and arrangement corresponding to the openings. [Effects of the Invention]

[0013] According to this invention, the sealing member is closed near the center of its bottom surface, which blocks some of the heat generated by the induction heating member and suppresses the heat transmitted to the temperature sensor of the induction heating device, thereby ensuring heating stability.

[0014] Furthermore, by setting the shape of the sealing member and the size and number of openings relative to the bottom surface and height within a certain range, it is possible to ensure breathability while maintaining appropriate heat shielding properties.

[0015] Furthermore, it is possible to reduce the production cost per product. [Brief explanation of the drawings]

[0016] [Figure 1] 1A and 1B are a schematic front view and a cross-sectional side view (XX) and (b) of a sealing member according to a first embodiment of the present invention. [Figure 2] 1 is a schematic perspective view of a sealing member according to a first embodiment of the present invention. [Figure 3] 1 is a schematic side cross-sectional view of an aerosol suction cartridge using a sealing member according to a first embodiment of the present invention. [Figure 4] FIG. 10 is a schematic perspective view of a sealing member according to a second embodiment of the present invention. [Figure 5] 1A and 1B are a schematic front view and a schematic side cross-sectional view (YY) and (b) of an aerosol suction cartridge equipped with a sealing member according to a second embodiment of the present invention. [Figure 6] FIG. 10 is a schematic side cross-sectional view of an aerosol suction cartridge using a sealing member according to a second embodiment of the present invention. [Figure 7]FIG. 10 is a schematic front view of a sealing member according to another embodiment of the present invention. [Figure 8] FIG. 10 is a schematic front view of a sealing member according to another embodiment of the present invention. [Figure 9] FIG. 1 is a schematic side cross-sectional view of an aerosol suction cartridge using a conventional sealing member. [Figure 10] FIG. 10 is a schematic partial cross-sectional side view showing the aerosol suction cartridge using a conventional sealing member in use. [Figure 11] FIG. 10 is a schematic perspective view of a sealing member according to a third embodiment of the present invention. [Figure 12] 10A and 10B are a schematic front view and a cross-sectional side view (XX) and (XX) of a sealing member according to a third embodiment of the present invention. [Figure 13] FIG. 10 is a schematic perspective view of a sealing member according to a fourth embodiment of the present invention. [Figure 14] FIG. 10 is a schematic side cross-sectional view of an aerosol suction cartridge equipped with a sealing mechanism according to a fifth embodiment of the present invention. [Figure 15] FIG. 10 is a schematic side view of an aerosol suction cartridge equipped with a sealing mechanism according to a fifth embodiment of the present invention. [Figure 16] FIG. 10 is a schematic side view of a sealing member according to a sixth embodiment of the present invention. [Figure 17] FIG. 10 is a schematic cross-sectional side view of an aerosol suction cartridge equipped with a sealing member according to a sixth embodiment of the present invention. [Figure 18] 10A and 10B are a schematic front view and a side view of a sealing member according to a seventh embodiment of the present invention. [Figure 19] 10A and 10B are a schematic front view and a schematic side cross-sectional view (XX)(b) of an aerosol suction cartridge equipped with a sealing member according to a seventh embodiment of the present invention. [Figure 20] FIG. 13 is a schematic perspective view of a sealing member according to an eighth embodiment of the present invention. [Figure 21] FIG. 13 is a schematic cross-sectional side view of an aerosol suction cartridge equipped with a sealing member according to an eighth embodiment of the present invention. [Figure 22]FIG. 10 is a schematic front view of a sealing member according to another embodiment of the present invention. [Figure 23] 5A and 5B are a schematic front view and a side view of a sealing member according to another embodiment of the present invention. [Figure 24] FIG. 10 is a schematic side cross-sectional view of an aerosol suction cartridge equipped with a sealing member according to another embodiment of the present invention. [Figure 25] FIG. 10 is a schematic perspective view of a modified example of the sealing member according to the fourth embodiment of the present invention. [Figure 26] 10A and 10B are a schematic front view and a cross-sectional side view (XX) and (XX) of a modified example of a sealing member according to the fourth embodiment of the present invention. [Figure 27] FIG. 10 is a schematic front view of another modified example of the sealing member according to the fourth embodiment of the present invention. [Figure 28] 10A and 10B are a schematic perspective view and a side cross-sectional view, respectively, of a modified example of a sealing member according to another embodiment of the present invention. [Figure 29] FIG. 10 is a schematic front view of a modified example of a sealing member according to another embodiment of the present invention. [Figure 30] 10A and 10B are a schematic perspective view and a side cross-sectional view, respectively, of a modified example of a sealing member according to another embodiment of the present invention. [Figure 31] FIG. 10 is a schematic side view of a modified example of an exterior member according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0017] The present invention will be described with reference to the accompanying drawings, in which the size, spacing, number, and other details of the components of the drawings are greatly simplified or exaggerated compared to the actual objects in order to facilitate visibility and understanding.

[0018] Embodiment 1 Embodiment 1 will be described with reference to Figures 1 to 3. Figure 3 is a schematic side cross-sectional view of an aerosol suction cartridge 10 using a sealing member 1 according to embodiment 1. The aerosol suction cartridge 10 has a linear arrangement of the sealing member 1, an aerosol-forming substrate 13, a support member 14, and a mouthpiece 15, which are wrapped in an exterior member 16 to form an elongated cylindrical shape.

[0019] The aerosol suction cartridge 10 has an elongated cylindrical shape overall. It includes an elongated cylindrical aerosol-forming substrate 13 containing an accumulation of filler 132 that generates an aerosol when heated, a support member 14 for preventing the aerosol-forming substrate 13 from moving or the outer casing 16 from bending, and a mouthpiece 15 through which airflow from the aerosol-forming substrate 13 passes and allows the user to inhale the aerosol. These components are arranged along the longitudinal direction and integrally formed by being wrapped around the sheet-like outer casing 16 into a cylindrical shape. The outer casing 16 is made of a flexible material such as paper. In this specification, "elongated" means that, in a three-dimensional shape, one direction is longer than the other. In the first embodiment, "elongated cylindrical shape (circular tube shape)" means that the height of the cylinder (circular tube) (i.e., the component perpendicular to the base) is longer than the diameter of the circle that forms the base of the cylinder (circular tube). This also applies to subsequent embodiments.

[0020] The aerosol suction cartridge 10 in the first embodiment is preferably formed with a diameter of 4.0 mm to 7.5 mm, more preferably 5.0 mm to 7.0 mm, and a length of 40 mm to 80 mm. Setting the diameter of the aerosol suction cartridge 10 in the range of 6.5 to 7.5 mm allows the aerosol suction cartridge 10 to fit with an insertion port D1 provided in the induction heating device D with a moderate force, thereby enabling the aerosol suction cartridge 10 to be suitably held in the induction heating device D while facilitating attachment and detachment of the aerosol suction cartridge 10. Setting the length of the aerosol suction cartridge 10 to 40 mm or more is preferable because it is longer than the length of the insertion port D1 provided in the induction heating device D for receiving the aerosol suction cartridge 10. Therefore, even when the aerosol suction cartridge 10 is inserted into the induction heating device D, the suction nozzle can be exposed, ensuring the length necessary for the user to inhale the aerosol.

[0021] Next, as shown in FIGS. 1 and 2, the sealing member 1 has the function of passing air from the outside of the aerosol suction cartridge 10 toward the aerosol-forming substrate 13 and the function of fixing the aerosol-forming substrate 13 so as not to move. Therefore, in the first embodiment, as shown in FIGS. 1 and 2, the aerosol suction cartridge 10 has a main body 11 having an overall cylindrical shape and one or more openings 12 formed therethrough in a direction perpendicular to the bottom surface (i.e., in the height direction of the cylinder). The circle forming the bottom surface is partially or entirely blocked in the height direction of the main body 11 within a predetermined range from its center (i.e., when housed in the central hole of the exterior member 16, the sealing member 1 blocks the central hole within a predetermined range from its center). The blocked area (blocked area) is within a radius of at least 0.5 mm from the center of the bottom surface. The wider the blocked area, the more stable the induction heating, but if it is too wide, the air permeability will be reduced. Therefore, an appropriate blocked area is determined taking into consideration the aspect ratio and opening ratio, which will be described later. In the first embodiment, as shown in Fig. 1, a single opening 12 is formed to surround a blocked portion at the center of the circle forming the bottom surface, and the blocked portion is within a range of 0.5 mm from the center of the bottom surface. Note that in this specification, the term "blocked" is not limited to completely covering or sealing, but also includes a state of partially hiding or blocking. In other words, the sealing member 1 of the first embodiment has a shape in which the opening 12, which is a C-shaped through-hole, is formed in the height direction of the cylindrical main body 11.

[0022] Here, the cylinder forming the sealing member 1 preferably has a diameter of 4.0 mm to 7.5 mm and a length along the height direction of 3.0 to 7.0 mm, for example.

[0023] In order for the sealing member 1 to allow air to pass smoothly, the size and number of openings 12 relative to the bottom surface and height of the sealing member 1 are important factors. Considering the aspect ratio, which is the ratio of the area of ​​the opening side to the area of ​​the openings 12 (opening side surface area / opening area), and the opening rate, which is the ratio of the area of ​​the openings 12 to the total area of ​​the bottom surface (the area of ​​the circle that makes up the bottom surface when no openings 12 are formed), it is desirable that the aspect ratio be 24 or less and the opening rate be 2% or more, and it is even more desirable that the opening rate be 20% or more and the aspect ratio be 12 or less. Furthermore, taking into account blocked areas, it is preferable that the opening rate be a maximum of 90% or less.

[0024] Materials that can be used for the sealing member 1 include natural fibers such as cotton and silk; synthetic fibers such as nylon (registered trademark), polyester, acrylic, and polyurethane; natural leather, synthetic leather, natural resin, natural rubber, plastics such as polyacetal, polyethylene, polycarbonate, vinyl chloride, PTFE, and polyamide; synthetic rubber such as silicone; metals such as stainless steel, iron, nickel, aluminum, and copper; paper, glass, carbon fiber, wood, bamboo, and ceramics. In the first embodiment, silicone is used. In the case of metals, non-ferromagnetic materials are preferred to prevent excessive heating, such as paramagnetic materials like aluminum and non-magnetic materials like copper. Furthermore, when using plastics or rubber, considering their proximity to the induction heating element 133, it is preferable to use materials with high heat resistance. Specifically, for plastics, the heat resistance temperature (the temperature at which the material does not deform when no force is applied) is preferably 100°C or higher. For example, polycarbonate, polyacetal, polyamide, PET, ABS, glass epoxy resin, PTFE, PVDF, and PEEK are preferred, and silicone rubber is preferred for rubber.

[0025] 3, the aerosol-forming substrate 13 has a cylindrical packing material 132, which is an aerosol generation source, accumulated and housed inside a central hole of a cylindrical packaging material 131 having an opening at the center, and further has an induction heating member 133, which generates heat in response to an alternating magnetic field, disposed inside the packing material 132. The length along the height direction is preferably set to, for example, 10 to 30 mm.

[0026] The diameter of the aerosol-forming substrate 13 is approximately equal to the diameter of the mouthpiece 15 and is a generally constant value along the central axis. The size of this diameter is preferably in the range of 4.0 mm to 7.5 mm, for example, and more preferably in the range of 5.0 mm to 7.0 mm.

[0027] The packaging member 131 is a cylindrical member made of a flexible and combustible material such as paper, and the size of the cylindrical member is preferably set to be the same as that of the aerosol-forming substrate 13, i.e., an outer diameter of 4.0 mm to 7.5 mm, more preferably 5.0 mm to 7.0 mm, and a length along the height direction of 10 mm to 30 mm.

[0028] <About Filler 132> Filler 132 is formed by mixing dried and ground tobacco or non-tobacco plant material with an aerosol former that generates an aerosol, microcrystalline cellulose, flavor additives, preservatives, adhesives, or thickeners, etc., forming the mixture into a sheet, and then cutting it to a predetermined width and length. Filler 132 may have a variety of shapes. For example, it may be formed into strips, a paste, or granules.

[0029] When the filler 132 is configured in a strip shape, the cross section perpendicular to the central axis is substantially rectangular, and the ratio of the long side to the short side of the cross section is preferably in the range of 1:1 to 30:1, for example. The length of the long side is preferably in the range of 0.1 mm to 7.5 mm, more preferably in the range of 0.1 mm to 3.0 mm. The length of the short side is preferably in the range of 0.1 mm to 1.0 mm, more preferably in the range of 0.1 mm to 0.5 mm. The length of the filler 132 is preferably in the range of 10 mm to 25 mm, more preferably in the range of 10 mm to 20 mm. An example of the dimensions of such a filler 132 is a long side of 1.5 mm, a short side of 0.3 mm, and a length of 12 mm.

[0030] Next, a description will be given of specific examples of the raw materials used as the filler 132. The filler 132 is made of any one or a combination of the following raw materials.

[0031] The filler 132 is made from tobacco plants or non-tobacco plants. Tobacco plants include tobacco leaves, tobacco stems, expanded tobacco, homogenized tobacco, etc. Non-tobacco plants include plants other than tobacco plants. Preferred parts of non-tobacco plants include leaves, pulp, seeds, roots (scale roots, tuberous roots, etc.), stems, tubers, bark (stem bark, bark, etc.), flowers (petals, stamens, pistils, etc.), trunks, branches, etc.

[0032] In this specification, "plants" refers to a group of organisms, as opposed to animals, and includes not only organisms that have roots and live in a fixed location, such as grass and trees, but also algae such as microalgae and seaweed, and fungi such as mushrooms.

[0033] Filler 132 is made, for example, by mixing dried and crushed non-tobacco plants with an aerosol former that generates an aerosol, microcrystalline cellulose, flavor additives that add flavor, preservatives, binders, thickeners, etc., and then crushing or classifying the mixture to form powder or granules, or forming it into a paste.Filler 132 can also be formed into a sheet, which is then cut into strips or rods of a predetermined width and length.

[0034] For example, tea leaves can be used when non-tobacco plants are used as raw materials. Tea leaves vary not only depending on the plant that produces the tea, but also depending on the processing method, even within the same plant, different tea leaves can be produced. Specific examples include Japanese tea, black tea, and oolong tea.

[0035] As the aerosol former, for example, glycerin, propylene glycol, etc. are preferably used.

[0036] Next, microcrystalline cellulose is obtained, for example, by partially depolymerizing α-cellulose obtained from the pulp of fibrous plants with an acid, and is obtained by removing the soluble portion from the cellulose and, if necessary, crystallizing the insoluble portion.

[0037] The microcrystalline cellulose may be in the form of powder or may be dispersed in a solvent such as water to form a suspension. In this case, a high-speed stirrer or a high-pressure homogenizer can be used to disperse the microcrystalline cellulose in the solvent.

[0038] Furthermore, if necessary, a flavor additive may be used as an ingredient of the filling 132 to add flavor. Examples of flavor additives include mint, cocoa, coffee, black tea extract, and tea extract catechin powder. Preservatives that are used in food products are preferred, such as sorbic acid, potassium sorbate, benzoic acid, and sodium benzoate.

[0039] Binders or thickeners include gums such as guar gum, cellulosic binders such as hydroxypropyl cellulose, polysaccharides such as conjugate base salts of organic acids such as starch, and combinations thereof.

[0040] <Regarding induction heating member 133> The induction heating member 133 is made by processing a flat plate-shaped material. This flat plate has a thickness of 0.05 to 0.5 mm, preferably 0.1 to 0.3 mm. Its length is approximately the same as the height of the aerosol-forming substrate 13, but may differ from the aerosol-forming substrate 13 by, for example, ±1 to 3 mm, to the extent that it does not impede the formation of aerosol. Note that the induction heating member 13 does not necessarily have to be flat, and can be polygonal, rod-shaped, columnar, cylindrical, particulate, spherical, porous, sheet-shaped, L-shaped, V-shaped, U-shaped, U-shaped, or a variety of other shapes, including combinations thereof.

[0041] The induction heating member 133 is made of a metal material containing a ferromagnetic substance. A ferromagnetic substance is a material that, when subjected to an external magnetic field, becomes strongly magnetized in the same direction as the external magnetic field and is particularly attracted to a magnet. Examples of ferromagnetic substances include iron, ferrite iron, ferrite powder, ferrite particles, ferritic stainless steel (e.g., SUS430), nickel, nickel-iron alloys (e.g., 42 alloy, 36 invar), and cobalt. The relative permeability of ferromagnetic substances is significantly greater than 1; for example, iron is approximately 5000, nickel is approximately 600, cobalt is approximately 250, and ferritic stainless steel is approximately 1000 to 1800.

[0042] Among magnetic materials, paramagnetic materials are those that, when an external magnetic field is applied, become weakly magnetized in the same direction as the external magnetic field, and lose their magnetism when the external magnetic field is reduced to zero, such as aluminum, platinum, and manganese.The relative permeability of paramagnetic materials is slightly greater than 1, for example, approximately 1.000021 for aluminum, approximately 1.000265 for platinum, and approximately 1.000830 for manganese.

[0043] Diamagnetic materials, among magnetic materials, are materials that become magnetized in the opposite direction to an external magnetic field when it is applied, and lose their magnetism when the external magnetic field is reduced to zero, such as copper, graphite, bismuth, etc. The relative permeability of diamagnetic materials is slightly less than 1, for example, about 0.999990 for copper, about 0.99980 for graphite, and about 0.999834 for bismuth.

[0044] When a ferromagnetic material is placed inside a magnetic field (alternating magnetic field) whose direction and magnitude change over time, not only does it generate Joule heat due to eddy currents flowing due to electromagnetic induction, but it also generates heat due to energy loss (hysteresis loss) that occurs when the direction of magnetization inside the ferromagnetic material changes. Therefore, induction heating is easier than with paramagnetic or diamagnetic materials, and the filler 132 can be heated sufficiently.

[0045] Furthermore, the Curie temperature, which is the temperature at which a ferromagnetic material loses its magnetic order and transitions to a paramagnetic material, is, for example, about 358° C. for nickel. Therefore, even when the filler 132 is heated to a high temperature of, for example, 200° C., the heating temperature does not reach the Curie temperature, and the properties of the ferromagnetic material can be maintained, allowing the filler 132 to be heated stably.

[0046] The material of the induction heating member 133 may be a ferromagnetic material such as iron, ferrite iron, ferrite powder, ferrite particles, ferritic stainless steel, ferromagnetic steel, stainless steel, nickel, cobalt, or a metal material that is a combination of these. For example, a combination of ferritic stainless steel and nickel can be used, and more preferably, an alloy that is a combination of iron, chromium, and aluminum (iron-chromium-aluminum alloy).

[0047] Here, we will explain the relationship between temperature and magnetism of iron and chromium. The Curie temperature of iron is approximately 770°C, and the Neel temperature of chromium, which is the temperature at which it changes from an antiferromagnetic material to a paramagnetic material, is approximately 35°C.

[0048] Furthermore, the induction heating member 133 may be made of a metal material containing a ferromagnetic material as a main component. For example, a ferromagnetic alloy, which is an alloy containing preferably 60% or more, more preferably 80% or more, of a ferromagnetic material, may be used. Examples include a nickel alloy or a nickel-iron alloy. Even in this case, the filler 132 can be sufficiently heated by induction heating the ferromagnetic material. Note that instead of the ferromagnetic material, a metal material containing a paramagnetic material and a diamagnetic material may be used. In this case, induction heating itself is still possible. However, from the viewpoint of shortening the heating time and reducing power consumption, it is preferable to use a metal material containing a ferromagnetic material.

[0049] The support member 14 prevents the aerosol-forming substrate 13 from moving toward the support member 14 and the exterior member 16 from bending, and allows the airflow containing the aerosol generated in the aerosol-forming substrate 13 to flow toward the mouthpiece 15. The support member 14 is, for example, cylindrical with a through-hole in the height direction, and is disposed between the aerosol-forming substrate 13 and the mouthpiece 15 so that its axis in the height direction is aligned with the central axis of the aerosol suction cartridge 10. The support member 14 is formed, for example, with a diameter of 4.0 mm to 7.5 mm and a length along the central axis of 50 mm or less. Note that the support member 14 may have dimensions different from those described above depending on the appropriate function and configuration. In the first embodiment, a support member main body made of a resin material is formed with an insertion hole serving as an air flow path. Examples of materials for the support member 14 include polypropylene, polylactic acid, silicone, and paper.

[0050] The mouthpiece 15 is a cylindrical member that is placed in the mouth of the user. The length along the central axis is set to 10 to 50 mm. The diameter is, for example, approximately the same as that of the aerosol-forming substrate 13 and the support member 14. The mouthpiece 15 is formed, for example, from a material such as paper. Alternatively, the mouthpiece 15 may be formed into a cylindrical shape by rolling up a paper sheet, or may include a cellulose acetate filter for removing fine particles. It may also be formed from a porous material containing silicone. In the first embodiment, the mouthpiece 15 is a white filter that functions to filter water vapor generated by the aerosol-forming substrate 13 and some of the fine particles in the aerosol. If the filler 132 is made from a non-tobacco plant, the mouthpiece 15 does not need to be a filter. In this case, the mouthpiece may be formed from a part of the exterior member 16, or a hollow member may be attached.

[0051] Next, a manufacturing process of the filler 132 according to the first embodiment will be described.

[0052] The manufacturing process of the filler 132 further includes internal processes such as a drying and grinding process in which the main raw material, tobacco or non-tobacco plant, is dried and ground and weighed, etc.; a preparation process in which other raw materials are pre-treated and weighed, etc.; a mixing process in which the raw materials are mixed to form a composition; and a filler molding process in which the composition is molded.

[0053] In the drying and grinding process, the main raw material, tobacco or non-tobacco plant parts (e.g., leaves, seeds, dried fruit, stems, bark, roots, etc.), are ground into a specific powder to create a composition. It is preferable to adjust the moisture content to a level suitable for absorbing or supporting the aerosol former, water, and other ingredients that will be added later. The drying temperature is preferably between 60°C and 80°C. This range makes it easy to achieve the desired moisture content while avoiding the loss of essential flavor components. Furthermore, the drying and grinding process can also include a sieving process to sieve the ground material, allowing it to be adjusted to the desired particle size before being introduced into the mixing process.

[0054] In the preparation step, it is possible to prepare the raw materials necessary for producing the filler 132. The microcrystalline cellulose described above is weighed in the preparation step and then put into the mixing step.

[0055] In the mixing step, a conventional mixer can be used. For example, a preferred mode is to mix the raw materials in a mixing vessel while applying shear force with a stirring blade.

[0056] In the filler molding process, when strips or rods are to be formed, a composition containing various raw materials is formed into a thin sheet using a multiple roll mill, and then cut to form filler 132. Using a multiple roll mill is preferable because it allows for kneading and dispersion by compressing the material by forcing it between the narrow rolls and shearing due to the difference in roll speed, while a doctor blade is used to form a sheet of the desired thickness. Alternatively, a press roller or a press machine can be used to produce the filler.

[0057] In this case, the thickness of the sheet is preferably in the range of 0.1 mm to 1.0 mm, more preferably in the range of 0.1 mm to 0.5 mm. The obtained sheet is cut to a predetermined width using a cutter, a rotary cutter using a rotary blade, or the like.

[0058] Furthermore, when forming powdered or granular filler 132, it is preferable to appropriately pulverize or classify the composition. The average particle diameter of powdered or granular filler 132 is preferably, for example, 0.1 to 3.0 mm, and more preferably 0.5 mm or less. The average particle diameter is determined, for example, by the sieving method described in JIS K 0069:1992. In other words, this average particle diameter refers to the diameter corresponding to 50% of the mass obtained by integrating the mass from the larger mesh size in test results using multiple sieves. Alternatively, the particle diameter at 50% of the integrated value in the particle size distribution determined by laser diffraction / scattering may be used as the average particle diameter. Furthermore, filler 132 may be formed into a fluid paste by adding an appropriate amount of a thickener, water, etc. to the powdered or granular composition and kneading it.

[0059] The filling may be formed by other means, such as forcing the composition through an orifice under pressure. Furthermore, in the filling, non-tobacco plants, aerosol formers, binders or thickeners, flavor additives, preservatives, or water may be added as needed.

[0060] Here, when providing adhesiveness to the surface of filler 132, any means capable of providing adhesiveness may be used, and the aforementioned binder may be attached to at least a portion of the surface. By providing adhesiveness, when strip- or rod-shaped filler 132 is combined with powder-, granular, or paste-like filler 132, the powder-, granular, or paste-like filler 132 can be stably held on the surface of strip- or rod-shaped filler 132.

[0061] <Manufacturing process of aerosol-forming substrate> The aerosol-forming substrate 13 is formed by enclosing the filler 132 and the induction heating member 133 in a cylindrical shape with the packaging member 131 and converging them to fit the diameter of the aerosol-forming substrate 13. In addition to the above-mentioned filler forming process, this process includes the following internal processes: a converging process in which the sheet-like filler 132, which is the aerosol generation source, and the long, ribbon-like material of the induction heating member 133 are converged while flowing them linearly in the same direction at a predetermined speed; an enclosing process in which this is packaged in a long, tape-like wrapping paper into a cylindrical shape; and a cutting process in which this is cut at predetermined intervals with a cutter.

[0062] <Assembly process> In the assembly process, the sealing member 1, the aerosol-forming substrate 13, the support member 14, and the mouthpiece 15 are arranged in a line in this order and then wrapped in the exterior member 16, thereby completing the aerosol suction cartridge 10. Here, it is preferable to form the sealing member 1 from a transparent or translucent material, since this makes it possible to check whether the induction heating member 133 is properly disposed after the assembly process.

[0063] Embodiment 2 The sealing member 2 according to the second embodiment will be described with reference to Figures 4 to 6. Here, illustrations and descriptions of parts common to the first embodiment will be omitted as appropriate. Furthermore, when referring to a configuration that corresponds across multiple embodiments, it will be expressed as "sealing member 1, etc." The same applies to other configurations.

[0064] As shown in Fig. 4, the seal member 2 of the second embodiment has a main body 21 shaped like a cylinder with parts of the outer periphery cut out in the height direction. In the second embodiment, the outer periphery of the main body 21 is cut out in four places in the height direction, forming an X-shape. Here, the seal member 1 of the first embodiment differs from the seal member 2 of the second embodiment in that it has a cylindrical outline, whereas the seal member 2 of the second embodiment lacks at least one place on the outer periphery. Also, the seal member 1 of the first embodiment has an opening 12 that is itself a through-hole, whereas the seal member 2 of the second embodiment differs in that it does not necessarily have this.

[0065] FIG. 5 shows a schematic front view (a) of an aerosol suction cartridge 10 equipped with a sealing member 2 and a side cross-sectional view (b) of the vicinity of the tip. As shown, when attached to the central hole of the exterior member 16, the sealing member 1 closes the central hole within a predetermined range from the center of the cylindrical bottom surface. The gap between the inner surface of the central hole of the exterior member 16 and the outer surface of the sealing member 1 forms one or more openings 22. Four openings 22 are formed here. The circle forming the bottom surface is closed over a portion or the entire height of the main body 21 within a predetermined range from its center. The closed area is within a radius of at least 0.5 mm from the center of the bottom surface, and is determined taking into consideration the aspect ratio and opening ratio, which will be described later. In the second embodiment, as shown in FIG. 5, four openings 22 are formed surrounding the closed area, and the closed area is within a radius of approximately 1 mm from the center of the bottom surface.

[0066] Furthermore, in the sealing member 2 of the second embodiment, the size of the opening 22 relative to the bottom surface and height of the sealing member 2 is also an important factor for allowing air to pass through smoothly. Considering the aspect ratio, which is the ratio of the area of ​​the opening side (the outer surface of the main body 21 forming the opening 22 and the inner surface of the central hole of the exterior member 16) to the area of ​​the opening 22 (opening side surface area / opening area), and the aperture ratio, which is the ratio of the area of ​​the opening 22 to the entire area of ​​the bottom (the area of ​​the circle constituting the bottom when no notch is formed) (opening area / bottom surface area), it is desirable that the aspect ratio be 24 or less and the aperture ratio be 2% or more, and more desirable that the aperture ratio be 20% or more and the aspect ratio be 12 or less. Furthermore, considering the need to install a blocking portion, it is preferable that the aperture ratio be a maximum of 90% or less. Furthermore, when considering the opening side in the second embodiment, only the region of the inner surface of the central hole of the exterior member 16 corresponding to the height of the sealing member 2 is considered, and the region where the sealing member 2 is not present (for example, the region where the aerosol-forming substrate 13 is present in FIG. 5(b)) is not considered.

[0067] According to this invention, the sealing member 1 etc. is closed near the center of its bottom surface, which blocks part of the heat generated by the induction heating member 133 and suppresses the heat transmitted to the temperature sensor D2 of the induction heating device D, thereby ensuring heating stability.

[0068] Furthermore, by setting the size and number of the openings 12 (22) relative to the bottom surface and height of the sealing member 1 or the like within a certain range, it becomes possible to ensure breathability while maintaining an appropriate heat shielding property.

[0069] Embodiment 3 11 and 12, sealing members 1-2 and 2-2 according to the third embodiment will be described. Here, illustrations and descriptions of parts common to the first and second embodiments will be omitted as appropriate.

[0070] The sealing member 1-2 includes a cylindrical main body 11-2 and a support 13-2 that is located on one bottom surface of the main body 11-2 and grounds against the aerosol-forming substrate 13 when the sealing member 1-2 is attached to the aerosol suction cartridge 10. The main body 11-2 also has one or more openings 12-2 that penetrate the cylindrical body in the height direction. The main body 11-2 may be a thinner version of the sealing member 1 of the first embodiment (with a shorter height). If the height of the main body 11-2 is too long, the exchange space S (described later) becomes too narrow, preventing sufficient effectiveness. If the height of the main body 11-2 is too short, the main body 11-2 becomes too thin, resulting in poor stability when inserted into the central hole of the exterior member 16. Therefore, the height of the sealing member 1-2 is preferably in the range of 20 to 90%, and more preferably 30 to 80%, of the total height of the sealing member 1-2.

[0071] The opening 12-2 is formed at a location on the bottom surface of the main body 11-2 other than where the support 13-2 is provided. That is, the support 13-2 is placed at or near the center of the circle that forms the bottom surface of the sealing member 1 so as not to cover or block the entire opening 12-2.

[0072] 12A is a front view of the sealing member 1-2, and FIG. 12B is a side cross-sectional view of the sealing member 1-2 near its tip when attached to the aerosol suction cartridge 10. In this state, the sealing member 1-2 forms an exchange space S of a certain range surrounded by the inner wall of the exterior member 16, the bottom surface of the aerosol-forming substrate 13, and the support column 13-2. It is preferable that the exchange space S is formed integrally without being divided into multiple parts.

[0073] In this configuration, the outside air that has entered through the opening 12-2 is mixed in the exchange space S and enters the filler 132 from the bottom surface of the aerosol-forming substrate 13 other than the area where the support 13-2 is grounded, which is effective in improving breathability. In addition, the accumulation of heat at the tip portion is reduced and the heat transferred to the temperature sensor D2 of the induction heating device D is suppressed, making it possible to ensure heating stability.

[0074] The same effect can be obtained by shortening the height of the sealing member 2 of embodiment 2 as the main body 2-2. Furthermore, the main bodies 1-2 and 2-2 do not necessarily have to be formed according to the same design rules as the sealing members 1 and 2, and any shape can be used as long as the support pillars 13-2 and 23-2 do not completely block the opening 12-2.

[0075] Embodiment 4 A sealing member 4 according to the fourth embodiment will be described with reference to Fig. 13. Here, illustrations and descriptions of parts common to the first to third embodiments will be omitted as appropriate.

[0076] The sealing member 4 has a thin hollow tube shape, and its outer diameter is approximately the same as the inner diameter of the exterior member 16, and is set to a degree that allows it to fit and be fixed when inserted into the interior of the exterior member 16. Here, "thin" means that the difference in size between the inner diameter and the outer diameter (i.e., equivalent to twice the wall thickness) is equal to or smaller than the inner diameter. The inner diameter is set as large as possible within a range that ensures a wall thickness that does not impair the overall structural strength and that can support the aerosol-forming substrate 13. Specifically, the difference in size between the outer diameter and the inner diameter is preferably 1 to 3 mm, and more preferably 1.2 to 1.5 mm.

[0077] In addition, in consideration of structural strength, materials containing natural fibers, synthetic fibers, natural leather, synthetic leather, natural resin, natural rubber, plastic, synthetic rubber, metal, paper, wood, bamboo, or ceramics are preferably used.

[0078] Variations 25, 26, and 27 are schematic diagrams of modified sealing member 4 according to embodiment 4 (the dotted lines in FIG. 25 indicate the internal openings). First, sealing member 4b in FIGS. 25 and 26 includes a main body 4b1 having a hollow tube shape as a whole, one or more openings 4b2 formed in the height direction of the hollow tube of the main body, and an airflow adjustment valve 4b3 at the upstream end of main body 4b1 in the aerosol airflow direction when main body 4b1 is attached to the central hole of the circular tube of exterior member 16 of aerosol suction cartridge 10. Here, the hollow tube of main body 4b1 has a bottom surface that covers one end of the opening, and airflow adjustment valve 4b3 is defined by a notch 4b4 formed in the bottom surface.

[0079] In Figures 25 and 26, four airflow adjustment valves 4b3 are formed by X-shaped notches 4b4 formed on the bottom surface. The intersection of the X-shaped lines is preferably located at the radial center of the hollow tube. When a user inhales aerosol, airflow adjustment valves 4b3 deform toward the downstream side of the aerosol (the inner side of the opening of main body portion 4b1) to adjust the flow rate of the aerosol. Therefore, the bottom surface of main body portion 4b1 is preferably made of an elastic material that can be elastically deformed by suction force, such as an elastomer material containing silicone rubber. Furthermore, the airflow adjustment valves 4b3 may be molded integrally with main body portion 4b1, or may be molded as separate parts and then joined.

[0080] The thickness of the airflow adjustment valve 4b3 is not particularly limited as long as it can be elastically deformed by suction force, but a thickness of 0.05 to 1.0 mm is preferably used. Also, the airflow adjustment valve 4b3 can be appropriately shaped so that the center side is thinner so that it can be elastically deformed by suction force.

[0081] The length of the notch 4b4 is preferably such that the airflow adjustment valve 4b3 can be elastically deformed by the suction force. Specifically, the distance from the intersection of the X-shaped lines to the end points of the lines is preferably 20% or more, and more preferably 40% or more, of the inner diameter of the hollow tube.

[0082] Figure 27 shows other examples of shapes. Figure 27(a) shows four U-shaped notches 4c4, Figure 27(b) shows four V-shaped notches 4d4, Figure 27(c) shows four W-shaped notches 4e4, and Figure 27(d) shows four L-shaped notches 4f4. In addition to these, any shape, such as a U-shape or an Ω-shape, is possible as long as the notches are non-closed. Again, the length of the notches 4c4 and the like is preferably such that the airflow adjustment valve 4b3 can be elastically deformed by suction force. Specifically, the distance from one end of the non-closed shape to its intersection or bending point is preferably 20% or more of the inner diameter of the hollow tube, and more preferably 40% or more. The non-closed shape will be explained in the fifth embodiment.

[0083] This allows the sealing member 4 to be formed with a simple structure, which is effective in reducing manufacturing costs, and the large inner diameter makes it possible to improve breathability. Furthermore, if a sufficient distance is provided between the bottom surface of the aerosol-forming substrate 13 and the bottom surface of the exterior member 16, the heat transmitted to the temperature sensor D2 can be suppressed, thereby ensuring heating stability.

[0084] Fifth embodiment The seal structure according to the fifth embodiment will be described with reference to Figures 14 and 15. Here, illustrations and descriptions of parts common to the first to fourth embodiments will be omitted as appropriate.

[0085] In the aerosol suction cartridge 20 according to the fifth embodiment, a non-closed notch 16-1 is formed on the side of the exterior member 16. Here, a non-closed shape refers to a shape that, when drawn with a single continuous line, including curved or broken lines (i.e., a single stroke), does not intersect with each other and does not have a partially closed shape, or a shape drawn with two or more lines that does not include a closed shape in any part or all of the line. Examples of non-closed shapes include V-, U-, W-, U-, Ω-, and X-shapes. Conversely, a closed shape refers to a shape that includes a partially or fully closed figure, such as O-, Q-, or rectangular shapes.

[0086] A sealed structure is obtained by bending the portion formed by the non-closed cut 16-1 toward the inside of the exterior member 16, using the portion connected to the exterior member 16 (dotted line in FIG. 15) as a fulcrum, and supporting the aerosol-forming substrate 13 housed within the exterior member 16. At this time, an opening 16-2 is formed in the non-closed cut.

[0087] The size of the non-closed notches 16-1 is set to an appropriate size because if they are too small, they will not be able to adequately support the aerosol-forming substrate 13, but if they are too large, they will block the bottom surface of the aerosol-forming substrate 13 and impair breathability. Specifically, when bent inside the exterior member 16, it is preferable that the length of the fold line is 2 to 3 mm, and the length of the part supporting the aerosol-forming substrate 13 (taken as the length parallel to the radial direction of the exterior member 16) is a maximum of 2 to 3 mm or 30 to 50% of the inner diameter of the exterior member 16. It is also preferable that there are 2 to 4 fold lines, and the fold lines are formed so as to be located on the same circumference in the height direction of the exterior member 16.

[0088] According to this, by processing the exterior member 16 and using a part of it, a seal structure that can replace a sealing member can be obtained with a simple configuration without requiring any other parts, which is effective in reducing manufacturing costs. Also, since outside air can be taken in not only from the cylindrical tip of the exterior member 16 but also from the opening 16-2, it is also effective in improving breathability. Furthermore, the seal structure of this embodiment can also replace the support member 14. Also, since the portion formed by the non-closed shape cut 16-1 etc. absorbs heat, it is possible to ensure heating stability.

[0089] Sixth embodiment A seal member 6 according to the sixth embodiment will be described with reference to Figures 16 and 17. Here, illustrations and descriptions of parts common to the first to fifth embodiments will be omitted as appropriate.

[0090] As shown in Fig. 16, the sealing member 6 has an overall spherical shape with at least three ventilation through-holes 61 formed in its radial direction. The diameter of the sphere is preferably approximately the same as or slightly larger than the inner diameter so that it can fit into the central hole of the exterior member 16. Specifically, it is preferably 0.01 to 0.5 mm larger, and more preferably 0.05 to 0.2 mm larger. In Fig. 16, dotted lines indicate the through-holes 61 formed inside.

[0091] The material of the sealing member 6 can be the same as that of the sealing member 1 in embodiment 1, but considering that it will fit into the central hole of the exterior member 16, it is preferable to use an elastic material such as an elastomer resin containing plastic or rubber (natural or synthetic).

[0092] If the size of the through-holes 61 is too small, the breathability will be impaired, so the diameter of the through-holes 61 is preferably 0.2 mm or more. Furthermore, it is preferable that at least three of the through-holes 61 pass through the center of the sphere and intersect each other perpendicularly at the center.

[0093] FIG. 17 is a side cross-sectional view of the vicinity of the tip of the sealing member 6 attached to the aerosol suction cartridge 10. When the sealing member 6 is made of an elastic material as described above, it is fixed to the inside of the exterior member 16 by its elasticity and the rigidity of the exterior member 16. In FIG. 17(a), one of the through-holes 61 is arranged parallel to the longitudinal direction of the aerosol suction cartridge 10, while in FIG. 17(b), it is arranged obliquely. In either case, at least one of the through-holes 61 connects the exterior and interior of the aerosol suction cartridge 10 to allow air to circulate, serving as an air channel for introducing outside air, thereby ensuring breathability. Furthermore, in the manufacturing process, a cylindrical sealing member like the sealing member 1 must be arranged in the appropriate orientation (with the height of the cylinder facing the longitudinal direction of the aerosol suction cartridge 10) on the exterior member 16; for example, inserting it sideways can result in problems. On the other hand, the sealing member 6 of the sixth embodiment may be disposed in any direction, and there is no need to pay attention to the direction, which is also effective in reducing manufacturing costs. Furthermore, the sealing member 6 shields the heat generated by the induction heating member 133 to some extent, so that heating stability can be ensured.

[0094] Embodiment 7 The sealing member 7 according to the seventh embodiment will be described with reference to Figures 18 and 19. Here, illustrations and descriptions of parts common to the first to sixth embodiments will be omitted as appropriate.

[0095] As shown in FIG. 18 , the sealing member 7 has an overall plate-like shape with one or more bent portions 71 formed therein and is made of a flexible material. In the seventh embodiment, the sealing member 7 is U-shaped, but it may also be V-, U-, W-, or L-shaped. The bent portion may be bent like a U- or W-shape, or may be curved like a U-shape. Furthermore, if the plate material is too thick, it becomes difficult to process or elastically deform it. On the other hand, if it is too thin, its strength decreases and its shape stability is lost. Therefore, it is preferable that the thickness be moderate. The preferred thickness depends on the material, but is preferably 0.05 to 0.2 mm for metal and 0.5 to 1.5 mm for plastic.

[0096] As described above, it is preferable to use a flexible material that can elastically deform in response to an external force. Specifically, plastic, rubber, or metal is preferable. As in the previous embodiments, when using plastic or rubber, it is preferable to use a material with high heat resistance.

[0097] The seal member 7 may be formed by processing a flat plate-shaped material to form a bent portion, or may be formed into a predetermined shape from the beginning.

[0098] FIG. 19 shows (a) a schematic front view of an aerosol suction cartridge 10 equipped with a sealing member 7 and (b) a schematic side cross-sectional view of the vicinity of the tip. Here, a U-shaped central portion 72 is disposed inside the exterior member 16, facing toward the aerosol-forming substrate 13. The dimensions of the central portion 72 are preferably set so that it can be stored in a slightly bent state. In this case, the elasticity of the material of the central portion 72 causes the two adjacent portions to press against the inner wall of the exterior member 16, thereby fixing the sealing member 7 inside the exterior member 16. For similar reasons, the sealing member 7 can be fixed inside the exterior member 16 even when the sealing member 7 has another shape, such as a W-shape, a V-shape, or a U-shape.

[0099] Furthermore, by bending the central portion 72, it is possible to suppress a temperature rise of the sealing member 7 and improve breathability by being partly separated from the aerosol-forming substrate 13. Furthermore, since the central portion 72 shields the heat generated by the induction heating member 133 to some extent, it is possible to ensure heating stability.

[0100] Embodiment 8 20 and 21, a seal member 8 according to the eighth embodiment will be described. Here, illustrations and descriptions of parts common to the first to seventh embodiments will be omitted as appropriate.

[0101] As shown in Figure 20, the sealing member 8 has a truncated cone shape 8a (Figure 20(a)), a cylindrical shape 8b (Figure 20(b)), and a cone shape 8c (Figure 20(c)), and ventilation grooves 8a-2, 8b-2, and 8c-2 are formed on the side surfaces in the height direction of the truncated cone 8a-1, the cylinder 8b-1, and the cone 8c-1, and through holes 8a-3, 8b-3, and 8c-3 are formed on the lower bottom surfaces.

[0102] Furthermore, in the truncated cone shape 8a and the cylindrical shape 8b, insert members 8a-4 and 8b-4 are provided on the upper base surfaces of the truncated cone 8a-1 and the cylindrical column 8b-1, respectively, to be inserted into the aerosol-forming substrate 13 and fix the position of the sealing member 8. The insert members 8a-4 and 8b-4 are preferably formed near the center of the upper base surface of the truncated cone 8a-1 and the cylindrical column 8b-1.

[0103] When the sealing member 8 is in the shape of a truncated cone 8a, the ventilation groove 8a-2 is formed by cutting out a part of the side surface and extending from the upper bottom surface to the lower bottom surface. The same applies to the case of a cylindrical shape 8b. In addition, when the sealing member 8 is in the shape of a cone 8c, it is preferable that the ventilation groove 8a-2 is formed from the bottom surface to the apex.

[0104] Furthermore, when the sealing member 8 is in the shape of a truncated cone 8a, the through-holes 8a-3 are preferably formed from the lower bottom surface toward the side surface, and the same is true for the through-holes 8c-3 of the cone-shaped member 8c. On the other hand, when the sealing member 8 is in the shape of a column 8b, the through-holes 8b-3 are preferably formed from the upper bottom surface toward the lower bottom surface.

[0105] Furthermore, the insert members 8a-4 and 8b-4 are preferably provided in the case of the truncated cone shape 8a and the cylindrical shape 8b, since this allows the position of the seal member 8 to be fixed. Here, in the case of the conical shape 8c, the tip shape itself has the function of the insert members 8a-4 and 8b-4.

[0106] In addition, in Figure 20, the insert members 8a-4 and 8b-4 are shown in a conical shape with a sharp tip, but this is not limited to this and any shape such as a rod, plate, pyramid, or prism may be used as long as the tip can be inserted into the filler 132 of the aerosol-forming substrate 13, but it is preferable to form the tip into a sharp shape.

[0107] 21 shows (a) a schematic front view of an aerosol suction cartridge 10 equipped with a sealing member 8 and (b) a schematic side cross-sectional view of the vicinity of the tip. It is preferable that the diameter of the lower base in the case of a truncated cone shape 8a, and the diameter of the bottom in the case of a cylindrical shape 8b or a cone shape 8c are approximately the same as the inner diameter of the exterior member 16, in other words, large enough to fit into the central hole of the exterior member 16.

[0108] In the case of the truncated cone shape 8a, it is preferable to insert the insert member 8a-4 until the upper bottom surface contacts the bottom surface of the aerosol-forming substrate 13, as shown in FIG. 1(a). At this time, it is preferable that the lower bottom surface is flush with the bottom surface of the exterior member 16, i.e., the height of the truncated cone 8a-1 is the same as the distance from the bottom surface of the aerosol-forming substrate 13 to the bottom surface of the exterior member 16. In this state, a certain space is formed in the gap between the inner surface of the exterior member 16 and the side surface of the truncated cone 8a-1, and air taken in through the ventilation grooves 8a-2 and through holes 8a-3 permeates the entire space and is drawn into the interior of the aerosol-forming substrate 13. This has the effect of improving breathability. Furthermore, the truncated cone 8a-1 shields the heat generated by the induction heating member 133 to some extent, ensuring heating stability.

[0109] In the case of the cylindrical shape 8b, as shown in FIG. 1(b), it is preferable that the bottom surface of the side facing the bottom surface of the aerosol-forming substrate 13 does not contact the bottom surface of the aerosol-forming substrate 13, forming a gap. Similarly, it is preferable that the other bottom surface of the cylindrical shape 8b-2 is positioned flush with the bottom surface of the exterior member 16, as described above. In this state, air taken in through the ventilation grooves 8b-2 and through holes 8b-3 permeates the entire gap and is drawn into the aerosol-forming substrate 13. This has the effect of improving breathability. The truncated cone 8b-1 shields the heat generated by the induction heating member 133 to some extent, ensuring heating stability.

[0110] Furthermore, in the case of the conical shape 8c, it is preferable to insert the insert member 8c-4 until the bottom surface of the cone 8c-1 is flush with the bottom surface of the exterior member 16 without any steps, as shown in FIG. 1C. In this state, a certain space is formed in the gap between the inner surface of the exterior member 16 and the side surface of the cone 8c-1, and air taken in through the ventilation grooves 8c-2 and through-holes 8c-3 permeates the entire space and is drawn into the aerosol-forming substrate 13. This has the effect of improving breathability. In addition, the cone 8c-1 shields the heat generated by the induction heating member 133 to some extent, ensuring heating stability.

[0111] In the eighth embodiment, the induction heating member 133 is located at a position deviated from the center in the radial direction of the aerosol-forming substrate 13 due to the influence of the insert member 8a-4 and the like.

[0112] Furthermore, if the truncated cone 8a-1, the cylinder 8b-1, and the cone 8c-1 are securely fitted into the central hole of the exterior member 16, the insert members 8a-4 and the like are not necessarily required. Conversely, if the insert members 8a-4 and the like are provided, the truncated cones 8a-1 and the like do not necessarily need to be securely fitted into the central hole of the exterior member 16, and for example, the diameter of the lower base surface may be smaller than the inner diameter of the central hole of the exterior member 16.

[0113] Moreover, it is not necessary to form both the ventilation groove 8a-2 etc. and the through-hole 8a-3 etc., and either one will suffice as long as it is possible to take outside air in. Moreover, it is more preferable if a screw thread is formed on the side surface of the insert member 8a-4 etc., since this makes it easier to insert it into the aerosol-forming base 13.

[0114] Although the embodiments of the present invention have been described above, the scope of the present invention is not limited to the above-described embodiments, but extends to other embodiments that can be regarded as equivalent to these, and combinations thereof.

[0115] First, by making the seal member 1 and the like a different color (for example, black) from the mouthpiece 15, it becomes possible to easily distinguish between the upstream side and the downstream side of the aerosol inhalation cartridge 10.

[0116] Furthermore, the sealing member 1 etc. does not necessarily have to be placed inside the central hole of the exterior member 16, but may be attached to the tip of the exterior member 16 or only partly placed in the central hole. In this case, a shape such as that of the sealing member 2 of the second embodiment in particular can further improve breathability.

[0117] Furthermore, the exterior member 16 does not necessarily have to be integral, and may be formed by joining two or more exterior elements. For example, the sealing member 1, etc., the aerosol-forming substrate 13, and the support member 14 may be housed in a cylindrical exterior element, and the mouthpiece 15 may be wrapped around the cylindrical exterior element with a sheet-like exterior element to form a cylindrical shape. In this case, the cylindrical exterior element and the sheet-like exterior element constitute the exterior member 16. On the other hand, the packaging member 131 and the exterior member 16 do not necessarily have to be separate structures. It is also possible to form the aerosol suction cartridge 10 by housing the filler 132 and the induction heating member 133 in the center hole of the exterior member 16, and then housing the sealing member 1, etc., the support member 14, and the mouthpiece 15 within the aerosol-forming substrate 13. This can further simplify the manufacturing process and reduce manufacturing costs. In this case, the support member 14 and the mouthpiece 15 may be placed in the central hole of the exterior member 16, and then the filler 132 may be filled in, the induction heating member 133 may be inserted, and the sealing member 1 or the like may be attached, or the support member 14 and the mouthpiece 15 may be placed in after the filler 132 has been filled in.

[0118] Furthermore, the shape of the seal member 1 and the opening 12 (22) can take various shapes as long as the size of the opening 12 (22) is appropriate relative to the bottom surface and height of the seal member 1 and the circle forming the bottom surface is blocked within a predetermined range from its center. For example, in the first embodiment, the seal member 1 has a single opening 12, but this is not limited to this; multiple openings 12 may be included. Figure 7 shows examples of other shapes of the seal member 1. As shown in (a), four openings 32 may be arranged inside the main body 31 to surround the blocked area, forming an X-shape. As shown in (b), multiple small openings 32 may be arranged to surround the blocked area. Furthermore, the opening 12 (22) does not necessarily have to surround the blocked area. For example, the seal member 4 in Figure 8(a) is an example of another shape of the seal member 2. However, as shown here, two opposing side surfaces of the cylinder may be cut out to form a straight line shape. In this case, the opening formed when the seal member 4 is attached to the central hole of the exterior member 16 does not surround the blocked portion, but the same effects as in the first and second embodiments can be obtained.

[0119] Also, like the seal member 5 in FIG. 8(b), it may have both the opening 52 like the seal member 1 of the first embodiment and the notch like the seal member 2 of the second embodiment.

[0120] Furthermore, the support member 14 does not necessarily need to be installed if the aerosol-forming substrate 13 does not move toward the support member 14 or the exterior member 16 does not bend. For example, the mouthpiece 15 may be adjacent to the aerosol-forming substrate 13, or the location where the support member 14 was located may be left as a space. In this case, the space between the aerosol-forming substrate 13 and the mouthpiece 15 results in the inner surface of the exterior member 16 being exposed inside the circular tube, which reduces the number of parts and is therefore effective in reducing costs. Providing a space is particularly effective in improving breathability.

[0121] A cooling member for cooling the aerosol may be provided between the support member 14 and the mouthpiece 15. This effectively cools the heat of the aerosol, allowing the user to inhale it without any problems. Here, the cooling member is preferably made of a material with a large surface area, such as a porous material or a crimped material, made of paper, resin, metal, or the like. The support member 14 may also serve as the cooling member.

[0122] Alternatively, as shown in FIG. 22, the sealing member may be formed into a cylindrical shape by forming a thin sheet-like material, such as paper, into a roll shape 9a (FIG. 22(a)), a folded shape 9b (FIG. 22(b)), or a random shape 9c (FIG. 22(c)). In this case, it is preferable that the diameter of the rolled-up material in the case of the rolled-up material 9a, and the width of the folded or bent sheet in the case of the folded or random shapes 9b and 9c, are smaller than the inner diameter of the exterior member 16. Furthermore, it is more preferable to orient the rolled-up axis in the case of the rolled-up material 9a, and the folding line in the case of the folded or random shapes 9b and 9c, in the longitudinal direction of the aerosol suction cartridge 10, since this facilitates the formation of air channels. Furthermore, forming multiple holes in the sheet is also effective in ensuring breathability. The rolled-up material 9a, the folded shape 9b, and the random shape 9c may be mixed.

[0123] Furthermore, in the sixth embodiment, the sealing member 6 need not be spherical, but may be a horizontal cylinder, as in the sealing member 6b in Fig. 23. The sealing member 6b has two or more through-holes 6b1 formed in the side surface of the cylinder, and it is preferable that these through-holes intersect at the center when viewed from the bottom of the cylinder. In Fig. 23, three sets of six holes are formed, each set consisting of two intersecting holes.

[0124] The height of the sealing member 6b is preferably set to a size that allows it to fit into the central hole of the exterior member 16 when attached to the central hole of the exterior member 16 so that it is oriented perpendicular to the longitudinal direction of the aerosol suction cartridge 10. Furthermore, setting the diameter of the bottom of the cylinder smaller than the inner diameter of the exterior member 16 is preferable to prevent the cylinder from falling out when the height of the cylinder is arranged parallel to the longitudinal direction of the aerosol suction cartridge 10. On the other hand, forming through-holes 6b1 in the height direction through the bottom (i.e., three holes form a set and intersect, as in embodiment 6) is more preferable because it allows use even when the bottom is exposed. In this case, the diameter of the bottom is preferably set to a size that allows it to fit into the central hole of the exterior member 16, as in the sealing member 6 of embodiment 6.

[0125] Figure 24 is a side cross-sectional view of the vicinity of the tip of the aerosol suction cartridge 10 with the seal member 6b attached. When the seal member 6b is made of an elastic material as described above, it is fixed to the inside of the exterior member 16 by its elasticity and the rigidity of the exterior member 16. This figure shows a case where one of the through-holes 6b1 is arranged parallel to the longitudinal direction of the aerosol suction cartridge 10. However, even if it is arranged obliquely, as in Figure 17(b) described in embodiment 6, at least one of the through-holes 6b1 connects the outside and inside of the aerosol suction cartridge 10 so that air can circulate, serving as an air channel for taking in outside air, thereby ensuring breathability. This makes it possible to obtain the same effect as in embodiment 6.

[0126] Another embodiment is a sealing member 9d shown in Fig. 28, which has a cylindrical main body 9d1 as a whole and one or more openings 9d2 formed perpendicular to the bottom surface. Here, when the main body 9d1 is attached to the central hole of the circular tube of the exterior member 16 of the aerosol suction cartridge 10, the main body 9d1 has a protrusion 9d3 that protrudes radially from the exterior member 16 in a side view.

[0127] Here, the protruding portion 9d3 is a cylindrical member formed integrally with the main body portion 9d1 on the bottom surface of the main body portion 9d1 on the upstream side of the aerosol airflow when the main body portion 9d1 is attached to the central hole of the circular tube of the exterior member 16 of the aerosol suction cartridge 10, and its outer diameter is set to be larger than the outer diameter of the exterior member 16. Alternatively, the protruding portion 9d3 may be molded as a separate part from the main body portion 9d1 and then joined.

[0128] Furthermore, to prevent the aerosol suction cartridge 10 from falling out during use, the outer diameter of the protrusion 9d3 is preferably approximately the same as the inner diameter of the insertion opening D1 of the induction heating device D, and more preferably 0.05 to 0.5 mm larger. Furthermore, the material of the protrusion 9d3 is preferably an elastically deformable material, such as an elastomer containing silicone rubber, so that it can elastically deform inside the insertion opening D1.

[0129] Furthermore, as shown in Figure 29, the protrusion may be one or more uneven shapes formed integrally with the main body 9e1 on the side of the main body 9e1 upstream of the airflow (protrusion 9e3 in Figure 29(a)), or one or more groove shapes (protrusion 9f3 in Figure 29(b)), or even one or more protrusion shapes (protrusion 9g3 in Figure 29(c)).

[0130] 30 and 31, one or more openings 16a1 may be formed in a predetermined size and arrangement on the side of the exterior member 16, and protrusions 9h3 may be formed in a size and arrangement corresponding to the openings 16a1 on the side of the main body 9h1. In FIG. 30, the protrusions 9h3 are semi-cylindrical and are located on the side of the main body 9h1 slightly downstream (preferably 0.5 to 2 mm) from the upstream end of the aerosol. Preferably, the protrusions 9h3 are located at equal intervals on the side of the main body 9h1.

[0131] When the sealing member 9h is attached to the central hole of the circular tube of the outer casing member 16 of the aerosol suction cartridge 10, in a side view, the protrusion 9h3 passes through the opening 16a1 and is exposed to the outside, protruding radially from the outer casing member 16.

[0132] Furthermore, the opening is not limited to a window shape like the opening 16a1, but may be a notch shape like the opening 16b1.

[0133] In this configuration, the protrusions 9d3 and the like are in close contact with the insertion opening D1, so that the aerosol suction cartridge 10 can be prevented from coming off during use.

[0134] Furthermore, the filler 132 used herein is in the form of a sheet formed into strips, but is not limited to this and may be formed into a powder or granules, a paste, or a mixture of these.

[0135] In addition to the tea leaves mentioned in the embodiment, all commonly used tea leaves can be used as the raw material for the filling 132. Also, used tea leaves can be used for these tea leaves. Using used tea leaves allows for the reuse and effective use of expensive tea leaves.

[0136] Extracts of the above-mentioned non-tobacco plants, so-called extracts and processed products, can also be used. The extracts may be in the form of liquid, starch syrup, powder, granules, solution, etc.

[0137] In addition to those listed in the embodiments, the aerosol formers that can be used as raw materials for the filler 132 include sorbitol, triethylene glycol, lactic acid, diacetin (glycerin diacetate), triacetin (glycerin triacetate), triethylene glycol diacetate, triethyl citrate, isopropyl myristate, methyl stearate, dimethyl dodecanedione, and dimethyl tetradecanedione.

[0138] Furthermore, menthol and a water-insoluble crosslinked polymer (preferably polyvinylpolypyrrolidone) may be contained as flavor additives. By combining menthol with a water-insoluble crosslinked polymer, sublimation of menthol can be effectively suppressed, and the menthol flavor can be maintained for a long period of time. Here, menthol is not limited to that obtained from natural products, but may also be a synthetic product. Peppermint, mint, peppermint oil, and other menthol-containing substances may also be used.

[0139] The flavor additive is provided in the mouthpiece 15, for example, by impregnating the wall of the mouthpiece 15. The manner in which the flavor additive is provided in the mouthpiece 15 is not limited to this, and for example, the flavor additive may be provided in the mouthpiece 15 by embedding a capsule containing the flavor additive in the wall of the mouthpiece 15. Alternatively, a capsule containing the flavor additive may be disposed between the mouthpiece 15 and the aerosol suction cartridge 10. When the flavor additive is encapsulated in a capsule, the user can break the capsule by pressing it with their finger, allowing the aromatic component of the flavor additive to volatilize at the desired timing.

[0140] Furthermore, when the flavor additive is encapsulated in a microcapsule, for example, the encapsulated microcapsule may be provided in the aerosol suction cartridge 10. Of course, the microcapsule may be provided in the support member 14.

[0141] In addition to those mentioned in the embodiments, binders or thickeners used as raw materials for the filler 132 include gums such as xanthan gum, gum arabic, and locust bean gum, cellulose binders such as carboxymethyl cellulose, hydroxyethyl cellulose, methyl cellulose, and ethyl cellulose, organic acids such as alginic acid, polysaccharides such as sodium alginate, sodium carboxymethyl cellulose, caranagin, agar, and pectin, and combinations thereof.

[0142] When using raw materials that do not contain nicotine, such as non-tobacco plants, substances that provide a similar sensation to nicotine, i.e., a kick, may be added. Preferred examples include plants of the Piperaceae family (such as pepper, long pepper, pseudo-piper, and capsicum), black pepper, white pepper, piperine, lobeline, chavicin, capsaicin, dihydrocapsaicin, glucosinolate, and allyl isothiocyanate.

[0143] Furthermore, in embodiment 1, the sealing member 1 has a shape in which an opening 12, which is a C-shaped through-hole, is formed in the height direction of the cylindrical main body 11, but this is not limited to this, and the through-hole may have an unclosed shape such as a V-shape, a U-shape, or a C-shape. [Explanation of symbols]

[0144] 1, 2, 3, 4, 5, 6, 7, 8, 9 Seal material 11, 21, 31 Main body 12, 22, 32 openings 13 Aerosol-forming substrate 131 Packaging materials 132 Filling 133 Induction heating components 14 Support member 15 mouthpiece 16 Exterior materials

Claims

1. An aerosol suction cartridge, The aerosol suction cartridge has a sealing member, an aerosol-forming substrate, a support member, and a mouthpiece linearly arranged, and is wrapped in an exterior member to form an elongated cylindrical shape; The sealing member is formed into a cylindrical shape by forming a sheet-like member into a shape including at least one of a roll shape, a folded shape, and a random shape, and is formed so that the winding axis in the case of the roll shape, and the folding line in the case of the folded shape and the random shape, are oriented in the longitudinal direction of the aerosol suction cartridge as a whole, and has a length along the height direction of 3.0 to 7.0 mm, The aerosol-forming substrate has an elongated cylindrical shape and includes an accumulation of fillers into which a rod-shaped heating member is inserted and which generates an aerosol when heated. An aerosol suction cartridge comprising:

2. The sheet-like member has a plurality of holes formed in its surface to ensure breathability.

2. The aerosol suction cartridge according to claim 1 .

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