Smoking accessory cartridges

Abstract

To provide a cartridge for a smoking tool capable of simplifying a whole structure of an aerosol forming base material including a susceptor.SOLUTION: A cartridge 10 for a smoking tool fitted to a smoking tool 100 of induction heating type for use includes: an aerosol forming base material 1 with a tobacco plant or a non-tobacco plant as a raw material; a cylindrical packaging member 2 covering the aerosol forming base material 1; a mouthpiece 3 arranged nearer to an end part on a downstream side than the aerosol forming base material 1 in the packaging member 2; an air impermeable lid body 7 arranged nearer at an end part on an upstream side than the aerosol forming base material 1 in the packaging member 2; and a susceptor 6 arranged along a central axis in the aerosol forming base material 1. The susceptor 6 is a slender metal plate made of an alloy material, one continuous hole 8 facing an end part of the susceptor 6 is formed in a central part of the lid body 7, and a bore diameter of the continuous hole 8 is set greater than a width dimension of the susceptor 6.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a cartridge for a smoking device.

Background Art

[0002] In recent years, tobacco products that heat a tobacco cartridge containing tobacco components without using a flame and inhale the vaporized tobacco components are widely known. Also, due to the diversification of preferences, cartridges for enjoying the aroma and taste of plants without tobacco components in the same way as tobacco without using a flame have begun to be known. Such cartridges and the like are used by being attached to a heating type smoking device.

[0003] As heating type smoking devices, for example, blade heating type and induction heating type ones are known. As a cartridge for a smoking device used in an induction heating type smoking device, for example, Patent Document 1 is known. The cartridge for a smoking device described in Patent Document 1 has a plug element, an aerosol forming substrate, a support element, an aerosol cooling element, and a mouthpiece arranged in this order from the upstream side to the downstream side inside a cylindrical outer wrapper, and a slender susceptor is arranged along the longitudinal axis direction inside the aerosol forming substrate. The plug element is made of a porous material or has a plurality of openings so that the upstream end of the aerosol forming substrate is not visible, and by this plug element being adjacent to the upstream end of the aerosol forming substrate, it prevents the susceptor arranged inside the aerosol forming substrate from falling off or deforming.

[0004] In the cartridge for a smoking device described in Patent Document 1, when the susceptor is induction heated by an alternating magnetic field generated in the induction heating type smoking device, heat is transferred from the susceptor to the aerosol forming substrate, so that the aerosol forming substrate is heated and an aerosol is generated. And in this state, when a smoker holds the mouthpiece and inhales, air that has passed through the plug element flows into the aerosol forming substrate, so that the aerosol generated by the heat of the susceptor flows to the mouthpiece and into the smoker's mouth.

Prior Art Documents

[0005] [Patent Document 1] Patent No. 6949043 [Overview of the project] [Problems that the invention aims to solve]

[0006] The smoking device cartridge described in Patent Document 1 combines multiple susceptor materials with different Curie temperatures in layers to appropriately control the temperature of the inductively heated susceptor. However, this presents a challenge in that the overall structure of the aerosol-forming substrate containing the susceptor becomes complex.

[0007] The present invention has been made in view of these circumstances, and its purpose is to provide a cartridge for a smoking device that is suitable for use in induction heating type smoking devices and that can simplify the overall structure of the aerosol-forming substrate including the susceptor. [Means for solving the problem]

[0008] To achieve the above objective, one aspect of the present invention provides a cartridge for a smoking device used in an induction heating type smoking device, comprising: an aerosol-forming substrate made from tobacco plants or non-tobacco plants; a cylindrical packaging member covering the aerosol-forming substrate; a mouthpiece disposed at the downstream end of the packaging member beyond the aerosol-forming substrate; a non-permeable lid disposed at the upstream end of the packaging member beyond the aerosol-forming substrate; and a susceptor disposed along the central axis within the aerosol-forming substrate, wherein the susceptor is an elongated metal made of an alloy material, a single communication hole is formed in the center of the lid facing the end of the susceptor, and the diameter of the communication hole is set to be larger than the width of the susceptor. [Effects of the Invention]

[0009] According to the present invention, the overall structure of the aerosol-forming substrate containing the susceptor can be simplified. Other problems, configurations, and effects will be clarified by the following description of the embodiments. [Brief explanation of the drawing]

[0010] [Figure 1] This is a cross-sectional view of a cartridge for a smoking device according to the first embodiment. [Figure 2] This is a front view of a cartridge for a smoking device according to the first embodiment. [Figure 3] This is a cross-sectional view showing a smoking device cartridge according to the first embodiment inserted into a smoking device. [Figure 4] This is a cross-sectional view of a cartridge for a smoking device according to the second embodiment. [Figure 5] This is a cross-sectional view of a cartridge for a smoking device according to the third embodiment. [Figure 6] This is a cross-sectional view of a modified smoking accessory cartridge. [Figure 7] This is a cross-sectional view of a modified smoking accessory cartridge. [Figure 8] This is a cross-sectional view of a modified smoking accessory cartridge. [Figure 9] This is a cross-sectional view of a modified smoking accessory cartridge. [Modes for carrying out the invention]

[0011] Embodiments of the present invention will be described below with reference to the drawings.

[0012] Figure 1 is a cross-sectional view of the smoking device cartridge 10 according to the first embodiment, and Figure 2 is a front view of the smoking device cartridge 10 according to the first embodiment. In the following description, the upstream side in the direction in which the aerosol flows will be simply referred to as the "upstream side" and the downstream side as the "downstream side," in relation to the direction in which a smoker inhales the smoking device cartridge during use.

[0013] As shown in FIGS. 1 and 2, the smoking implement cartridge 10 according to the first embodiment includes an aerosol-forming substrate 1, a cylindrical packaging member 2 that covers the aerosol-forming substrate 1, a mouthpiece 3 disposed at an end of the packaging member 2 on the downstream side of the aerosol-forming substrate 1, a cylindrical exterior member 4 that covers the mouthpiece 3, a support member 5 disposed between the aerosol-forming substrate 1 and the mouthpiece 3, a susceptor 6 disposed along the central axis in the aerosol-forming substrate 1, and a lid 7 disposed at an end of the packaging member 2 on the upstream side of the aerosol-forming substrate 1.

[0014] The aerosol-forming substrate 1 is specifically composed of a smoking material made from a tobacco plant or a non-tobacco plant, which will be described in detail later. The lid 7, the aerosol-forming substrate 1, and the support member 5 are wound and integrated by a sheet-like packaging member 2. The packaging member 2 is made of, for example, paper, but the material is not limited as long as it is a sheet-like member.

[0015] The mouthpiece 3 constitutes the suction port of the smoking implement cartridge 10 and is formed using, for example, paper or the like. The mouthpiece 3 may also include a cellulose acetate filter or the like for removing fine particles. Some of the fine particles in the water vapor or aerosol generated by the aerosol-forming substrate 1 are filtered by the filter of this mouthpiece 3.

[0016] The support member 5 is formed by winding a thin sheet-like member (such as paper, polymer sheet, rubber sheet, metal sheet, etc.) into a cylindrical shape, or is integrally formed from a material with excellent heat resistance (such as glass, ceramic, heat-resistant plastic, etc.), and is arranged such that its axial direction (longitudinal direction) is along the central axis of the smoking implement cartridge 10. Then, by one end of the support member 5 abutting against the aerosol-forming substrate 1 and the other end abutting against the mouthpiece 3, the axial movement of the aerosol-forming substrate 1 is restricted.

[0017] The mouthpiece 3 and the packaging member 2 are wound and integrated by a sheet-like exterior member 4. The exterior member 4 is made of, for example, paper. Note that the exterior member 4 may be omitted and the mouthpiece 3 may be covered with the packaging member 2.

[0018] The susceptor 6 is made of a ferromagnetic metal material that can be induction-heated to a temperature sufficient to generate an aerosol from the aerosol-forming substrate 1. More specifically, it is made of an alloy containing a plurality of ferromagnetic metal materials having different Curie temperatures. Ferromagnetic substances are roughly classified into ferromagnets, paramagnets, and diamagnets. A ferromagnet is a material that strongly magnetizes in the same direction as an external magnetic field when an external magnetic field is applied and retains a strong magnetism even when the external magnetic field is zero. Examples include iron, nickel, cobalt, and ferrite-based stainless steel. The relative permeability of a ferromagnet is extremely larger than 1. For example, if it is iron, it is about 5000, if it is nickel, it is about 600, if it is cobalt, it is about 250, and if it is ferrite-based stainless steel, it is about 1000 to 1800.

[0019] On the other hand, a paramagnet is a material that weakly magnetizes in the same direction as an external magnetic field when an external magnetic field is applied and loses magnetism when the external magnetic field is zero. Examples include aluminum, chromium, platinum, and manganese. The relative permeability of a paramagnet is slightly larger than 1. For example, if it is aluminum, it is about 1.000021, if it is platinum, it is about 1.000265, and if it is manganese, it is about 1.000830. Also, a diamagnet is a material that weakly magnetizes in the opposite direction to an external magnetic field when an external magnetic field is applied and loses magnetism when the external magnetic field is zero. Examples include copper, graphite, and bismuth. The relative permeability of a diamagnet is slightly smaller than 1. For example, if it is copper, it is about 0.999990, if it is graphite, it is about 0.99980, and if it is bismuth, it is about 0.999834.

[0020] Ferromagnetic metal materials can be easily induced to heat compared to paramagnetic or diamagnetic metal materials because, when an alternating magnetic field is generated, not only is an induced current flowing and Joule heating generated, but heat (hysteresis loss) is also generated due to friction and vibration between molecules.

[0021] Furthermore, ferromagnetic metal materials have high Curie temperatures; for example, nickel has a Curie temperature of around 358°C. Therefore, even when heating the smoking cartridge 10 at a high temperature of, for example, 200°C, the heating temperature does not reach the Curie temperature, maintaining its ferromagnetic properties and allowing the aerosol-forming substrate 1 to be heated stably. In this embodiment, the susceptor 6 is an alloy containing nickel, as well as chromium, aluminum, silicon, manganese, carbon, phosphorus, sulfur, iron, etc. In addition to such combinations of materials, alloys of iron and nickel or iron and cobalt can also be used. Moreover, instead of an alloy composed of ferromagnetic metal materials with different Curie temperatures, the susceptor 6 can also be an alloy combining a ferromagnetic metal material and a paramagnetic metal material, for example, an alloy of iron, chromium, and aluminum, or an alloy combining a ferromagnetic metal material and a diamagnetic metal material, for example, an alloy of iron and copper.

[0022] The susceptor 6 is a metal plate formed from the alloy described above in a rectangular shape. An example of its external dimensions is a length (long side) of 12 to 18 mm, a width (short side) of 1.0 to 2.5 mm, and a thickness of 0.11 to 0.63 mm. Preferably, the length is 12 to 18 mm, the width is 1.0 to 2.5 mm, and the thickness is 0.11 to 0.15 mm. More preferably, the length is 14 mm, the width is 1.8 mm, and the thickness is 0.13 mm. Such a susceptor 6 is arranged along the central axis within the aerosol-forming substrate 1, and the susceptor 6 and the aerosol-forming substrate 1 are set to the same length. Therefore, one end of the susceptor 6 is exposed on the upstream end face of the aerosol-forming substrate 1.

[0023] The lid 7 is made of a material that can withstand the temperature of the heated susceptor 6 or the heated aerosol-forming substrate 1. In this embodiment, heat-resistant silicone rubber that is impermeable to air is used, but any heat-resistant material that is impermeable to air, such as metal, resin, or ceramics, may be used. The lid 7 is a disc-shaped member having the same outer diameter as the diameter of the aerosol-forming substrate 1, and its outer circumference is fixed to the inner surface of the exterior member 4 by means of adhesive or other means. A circular communication hole 8 is formed at the center of the lid 7, and this communication hole 8 faces the susceptor 6 that is exposed from the end face of the aerosol-forming substrate 1. The diameter of the communication hole 8 is set to be larger than the width dimension of the susceptor 6, so that the susceptor 6 is always exposed in the communication hole 8 even if the relative mounting angle between the lid 7 and the exterior member 4 changes.

[0024] Next, specific examples of raw materials used as the aerosol-forming substrate 1 will be described. The aerosol-forming substrate 1 is composed of any one or more combinations of the raw materials shown below.

[0025] Aerosol-forming substrate 1 is made from tobacco plants or non-tobacco plants. Examples of tobacco plants include tobacco leaves, tobacco stems, expanded tobacco, homogenized tobacco, etc. Examples of non-tobacco plants include plants other than tobacco plants. Preferred parts of non-tobacco plants include leaves, pulp, seeds, roots (scale roots, tubers, etc.), stems, tubers, bark (stem bark, tree bark, etc.), flowers (petals, stamens, pistils, etc.), trunks, branches, etc.

[0026] In this specification, "plants" refers to a group of organisms distinct from animals, and includes not only organisms with roots that live in a fixed location, such as grass and trees, but also algae such as microalgae and seaweed, fungi such as mushrooms, and so on.

[0027] The aerosol-forming substrate 1 is prepared, for example, by appropriately mixing dried and pulverized non-tobacco plants with an aerosol-generating aerosol former, microcrystalline cellulose, flavor enhancers, preservatives, binders, or thickeners, and then pulverizing or classifying it to form a powder or granules, or molding it into a paste. Alternatively, the aerosol-forming substrate 1 may be formed into a sheet and then cut into strips or rods of a predetermined width and length.

[0028] For example, if the part of a non-tobacco plant is the leaf, tea can preferably be used. Teas differ not only in the type of plant used to make tea, but also in the processing method, even if they are from the same plant. Specifically, for example, Japanese tea, black tea, Angelica keiskei tea, hydrangea tea, Gynostemma pentaphyllum tea, aloe tea, ginkgo leaf tea, oolong tea, turmeric tea, Quercus glauca tea, Eleutherococcus senticosus tea, plantain tea, Glechoma hederacea tea, persimmon leaf tea, chamomile tea, Cassia obtusifolia tea, quince tea, chrysanthemum tea, Gymnema sylvestris tea, guava tea, goji berry tea, sedge leaf tea, black bean tea, Geranium thunbergii tea, brown rice tea, burdock tea, comfrey tea, Bibu tea, cherry blossom tea, Sa Examples of teas that can be reused include fragrant tea, shiitake mushroom tea, perilla tea, jasmine tea, ginger tea, horsetail tea, sweet pepper tea, senna tea, buckwheat tea, angelica tree tea, dandelion tea, sweet tea, houttuynia cordata tea, eucommia tea, sword bean tea, elderberry tea, privet tea, Job's tears tea, senna tea, loquat leaf tea, pu-erh tea, safflower tea, pine needle tea, mate tea, barley tea, Japanese laurel tea, mugwort tea, eucalyptus tea, monk fruit tea, rooibos tea, and bitter melon tea. For these teas, the used tea leaves can also be used after brewing. By using used tea leaves, expensive teas can be reused and put to good use.

[0029] Furthermore, extracts and processed products of non-tobacco plants, as exemplified above, can also be used. Examples of extract forms include liquid, syrup, powder, granules, and solutions.

[0030] Examples of aerosol formers used as raw materials for aerosol-forming substrate 1 include glycerin, propylene glycol, 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. Among these, glycerin and propylene glycol are preferred.

[0031] The microcrystalline cellulose used as a raw material for the aerosol-forming substrate 1 is obtained, for example, by partially depolymerizing α-cellulose obtained from fibrous plant pulp with acid, in which the soluble portion is removed from the cellulose and the insoluble portion is crystallized as appropriate.

[0032] Microcrystalline cellulose can be used in powder form or dispersed in a solvent such as water to form a suspended solution. In this case, a high-speed stirrer or high-pressure homogenizer can be used to disperse it in the solvent.

[0033] Furthermore, flavor additives are preferably used as raw materials for the aerosol-forming substrate 1 as needed. Examples of flavor additives include mint, cocoa, coffee, black tea extract, and catechin powder from tea extract. Preservatives used in food are preferred, such as sorbic acid, potassium sorbate, benzoic acid, and sodium benzoate.

[0034] The aerosol-forming substrate 1 may contain menthol and a water-insoluble crosslinked polymer (preferably polyvinylpolypyrrolidone). By combining menthol with a water-insoluble crosslinked polymer, the sublimation of menthol can be effectively suppressed, and the flavor of menthol 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. In addition, peppermint, mint oil, or other menthol-containing substances may be used.

[0035] The flavor additive is provided on the mouthpiece 3, for example, by impregnating the wall of the mouthpiece 3. The manner in which the flavor additive is provided on the mouthpiece 3 is not limited to this embodiment; for example, the flavor additive may be provided on the mouthpiece 3 by embedding a capsule containing the flavor additive in the wall of the mouthpiece 3. Alternatively, a capsule containing the flavor additive may be placed between the mouthpiece 3 and the aerosol forming substrate 1. When the flavor additive is enclosed in a capsule, the smoker can break the capsule by pressing it with their finger, allowing the aromatic components of the flavor additive to volatilize at a desired time.

[0036] Furthermore, if the flavor additive is encapsulated in microcapsules, for example, the encapsulated microcapsules may be provided on the aerosol-forming substrate 1. Of course, the microcapsules may also be provided on the support member 5.

[0037] Examples of binders or thickeners used as raw materials for the aerosol-forming substrate 1 include rubbers such as guar gum, xanthan gum, acacia gum, and locust bean gum; cellulose binders such as hydroxypropyl cellulose, carboxymethylcellulose, hydroxyethylcellulose, methylcellulose, and ethylcellulose; polysaccharides such as starch, organic acids such as alginic acid, sodium alginate, sodium carboxymethylcellulose, caranagin, agar, and pectin (conjugated base salts of organic acids); and combinations thereof.

[0038] Next, the method of using the smoking device cartridge 10 will be explained with reference to Figure 3. Figure 3 is a cross-sectional view showing the smoking device cartridge 10 inserted into the smoking device 100.

[0039] As shown in Figure 3, the smoking device cartridge 10 is used by being attached to an induction heating type smoking device 100. The smoking device 100 has an insertion part 101 for inserting the smoking device cartridge 10, a coil 102 built in so as to be wound cylindrically around the insertion part 101, and a circuit board (not shown) including a CPU that controls the flow of alternating current through the coil 102.

[0040] When the smoking device cartridge 10 is inserted into the insertion section 101, the aerosol-forming substrate 1, which is the object to be heated, is positioned inside the coil 102. When the switch of the smoking device 100 is turned on in this state, an alternating current flows through the coil 102 under the control of the CPU, and an alternating magnetic field is generated so as to penetrate the aerosol-forming substrate 1. As a result, an induced current flows through the susceptor 6, which is positioned along the central axis inside the aerosol-forming substrate 1, generating Joule heat and heat due to hysteresis loss, thus inductively heating the susceptor 6. Then, heat is transferred from the susceptor 6 to the aerosol-forming substrate 1, heating the aerosol-forming substrate 1 and generating an aerosol. In this state, when the smoker puts the mouthpiece 3 in their mouth and inhales, air flows into the aerosol-forming substrate 1 from the communication hole 8 of the lid 7, so the aerosol generated in the aerosol-forming substrate 1 flows into the mouthpiece 3 and into the smoker's mouth. At that time, concentrated air flows in from the communication hole 8 of the lid 7 toward the susceptor 6, and as this air passes around the susceptor 6, the susceptor 6 is cooled, so that the temperature of the inductively heated susceptor 6 is appropriately controlled.

[0041] The smoking device cartridge 10 configured in this manner according to the first embodiment can achieve the following effects.

[0042] A susceptor 6 is positioned along the central axis within the aerosol-forming substrate 1, and a non-permeable lid 7 is positioned at the upstream end of the aerosol-forming substrate 1. A single communication hole 8 is provided in the center of the lid 7, facing the susceptor 6, and the diameter of this communication hole 8 is set to be larger than the width of the susceptor 6. Therefore, concentrated air drawn in through the communication hole 8 of the lid 7 passes around the susceptor 6, appropriately controlling the temperature of the induction-heated susceptor 6 and suppressing excessive temperature rise of the alloy susceptor 6. Thus, instead of adopting a complex configuration of layering multiple susceptor materials with different Curie temperatures, it is sufficient to position a single alloy susceptor 6 along the central axis within the aerosol-forming substrate 1, simplifying the overall structure of the aerosol-forming substrate 1 including the susceptor 6.

[0043] Furthermore, since the communication hole 8 of the lid 7 is set to be larger than the width dimension of the susceptor 6, it is possible to insert the susceptor 6 into the aerosol-forming substrate 1 through the communication hole 8 of the lid 7 after completing the assembly of the smoking device cartridge 10 without the susceptor 6. Therefore, a device for pre-positioning the susceptor 6 inside the aerosol-forming substrate 1 is unnecessary, and the production equipment can be simplified. Moreover, since the size, length, and alloy ratio of the susceptor 6 inserted into the aerosol-forming substrate 1 through the communication hole 8 can be freely changed, it is possible to place an optimal susceptor 6 inside the aerosol-forming substrate 1 that matches the materials and moisture content contained in the filler of the aerosol-forming substrate 1, thereby realizing a highly versatile smoking device cartridge 10. However, it is also possible to complete the assembly of the smoking device cartridge 10 after pre-positioning the susceptor 6 inside the aerosol-forming substrate 1.

[0044] Figure 4 is a cross-sectional view of a smoking device cartridge 20 according to the second embodiment, and the parts corresponding to those in Figure 1 are denoted by the same reference numerals.

[0045] As shown in Figure 4, the smoking device cartridge 20 according to the second embodiment has through holes 21 formed in the packaging member 2 that covers the aerosol-forming substrate 1. Multiple through holes 21 are formed at predetermined intervals along the circumferential direction of the packaging member 2, but one through hole 21 is sufficient as long as it communicates with the outer circumferential surface of the aerosol-forming substrate 1. Furthermore, the position of the through holes 21 in the packaging member 2 is not particularly limited, but it is preferable that they be formed in the part of the packaging member 2 that faces the outer circumferential surface on the upstream side of the aerosol-forming substrate 1.

[0046] In the second embodiment of the smoking device cartridge 20 configured in this way, since the packaging member 2 has through holes 21 that communicate with the outer surface of the aerosol-forming substrate 1, air drawn in from the communication holes 8 of the lid 7 flows not only along the axial direction of the aerosol-forming substrate 1, but also flows into the interior through the through holes 21 of the packaging member 2 and through the outer surface of the aerosol-forming substrate 1. As a result, the aerosol near the central axis of the aerosol-forming substrate 1 heated by the susceptor 6 is mixed with the aerosol on the outer surface of the aerosol-forming substrate 1 which is at a lower temperature. Therefore, the smoking device cartridge 20 according to the second embodiment is expected to have the same effects as the first embodiment, as well as the additional effect of obtaining a richer flavor and taste.

[0047] Figure 5 is a cross-sectional view of a smoking device cartridge 30 according to the third embodiment, and the parts corresponding to those in Figure 1 are denoted by the same reference numerals.

[0048] As shown in Figure 5, in the third embodiment of the smoking device cartridge 30, a void 31 is defined between the lid 7 and the aerosol-forming substrate 1, and through holes 32 are formed in the packaging member 2 in the area facing this void 31. Multiple through holes 32 are formed in the packaging member 2 in the area facing the void 31, but one is sufficient as long as it communicates with the void 31.

[0049] In the third embodiment of the smoking device cartridge 30 configured in this way, a void 31 is defined between the lid 7 and the aerosol-forming substrate 1, and a through-hole 32 is formed in the packaging member 2 in the part facing this void 31. As a result, concentrated air drawn in from the communication hole 8 of the lid 7 not only passes around the susceptor 6, but the air drawn in from the communication hole 8 of the lid 7 and the air drawn in from the through-hole 32 of the packaging member 2 are mixed in the void 31, and then this air passes through the entire interior of the aerosol-forming substrate 1. This not only suppresses excessive temperature rise of the susceptor 6, but also lowers the temperature of the entire aerosol-forming substrate 1. Therefore, the smoking device cartridge 30 according to the third embodiment provides the same effects as the first embodiment, and additional effects such as stable flavor and taste can be expected.

[0050] Next, we will describe some variations of smoking accessory cartridges.

[0051] (Torture - 1) Figure 6 is a cross-sectional view of a smoking device cartridge 40 according to Modification 1. As shown in Figure 6, the smoking device cartridge 40 according to Modification 1 has a plurality of susceptors 6 arranged along the axial direction within the aerosol forming substrate 1, and the other configurations are basically the same as the smoking device cartridge 10 according to the first embodiment. Alternatively, one of the plurality of susceptors 6 may be arranged along the central axis within the aerosol forming substrate 1, and this susceptor 6 may face the communication hole 8 of the lid 7.

[0052] (Variation 2) Figure 7 is a cross-sectional view of a smoking device cartridge 50 according to modified example 2. In this example, as shown in Figure 7, the lid 51 positioned at the upstream end of the aerosol-forming substrate 1 is not made of an impermeable material, but is made of a porous material that allows for airflow, such as ceramic. In addition, no support member is positioned between the aerosol-forming substrate 1 and the mouthpiece 3; instead, a hollow cooling section 52 is formed.

[0053] In this configuration, air passing through the porous lid 51 flows axially from the upstream end face of the aerosol-forming substrate 1, cooling the susceptor 6 placed inside the aerosol-forming substrate 1. The aerosol is then cooled by the cooling section 52 before flowing to the mouthpiece 3 and into the smoker's mouth.

[0054] (Variation 3) Figure 8 is a cross-sectional view of a smoking device cartridge 60 according to Modification 3. In this example, as shown in Figure 8, the cooling section 61 formed between the aerosol-forming substrate 1 and the mouthpiece 3 is made of a porous material, and the other configurations are basically the same as those of the smoking device cartridge 50 according to Modification 2.

[0055] (Variation 4) Figure 9 is a cross-sectional view of a smoking device cartridge 70 according to Modification 4. In this example, as shown in Figure 9, the lid 71 positioned at the upstream end of the aerosol-forming substrate 1 is made of a non-permeable thin metal plate or the like, and the packaging member 2 has a through hole 72 that communicates with the outer surface of the aerosol-forming substrate 1. The other configurations are basically the same as those of the smoking device cartridge 50 according to Modification 2. A porous cooling section may be used instead of the hollow cooling section 52.

[0056] It should be noted that the present invention is not limited to the embodiments described above, and various modifications are possible without departing from the spirit of the invention. All technical matters included in the technical concept described in the claims are subject to the present invention. The embodiments described above are preferred examples, but those skilled in the art can realize various alternatives, modifications, variations, or improvements from the contents disclosed herein, and these are included in the technical scope described in the appended claims.

[0057] For example, in the smoking device cartridge 30 according to the third embodiment shown in Figure 5, not only may a through-hole 32 be formed in the packaging member 2 in the part facing the void 31, but a through-hole may also be formed in the packaging member 2 in the part facing the outer surface of the aerosol-forming substrate 1. With this configuration, it is expected that the flavor additive added to the aerosol-forming substrate 1 will mix more uniformly into the aerosol.

[0058] Furthermore, in the smoking device cartridges 10, 20, and 30 according to the first to third embodiments, instead of placing the support member 5 between the aerosol-forming substrate 1 and the mouthpiece 3, a hollow cooling section (see Figures 7 and 9) or a porous cooling section (see Figure 8) may be formed. [Explanation of symbols]

[0059] 1. Aerosol-forming substrate 2 Packaging components 3. Mouthpiece 4. Exterior components 5. Support Member 6 Susceptors 7 Lid 8 Communication hole 10, 20, 30 Smoking accessory cartridges 21 Through hole 31 Cavity 32 Through holes 100 Smoking Accessories 101 Insertion part 102 coils

Claims

1. A cartridge for a smoking device that is used attached to an induction heating type smoking device, an aerosol-forming substrate made from tobacco plants or non-tobacco plants, A cylindrical packaging member covering the aerosol-forming substrate, A mouthpiece positioned at the end of the packaging member downstream of the aerosol-forming substrate, A non-air-permeable lid is positioned at the end of the packaging member upstream of the aerosol-forming substrate, A susceptor arranged along the central axis within the aerosol-forming substrate, Equipped with, The susceptor is an elongated metal made of an alloy material. A single communication hole is formed in the center of the cover, facing the end of the susceptor. The diameter of the communication hole is larger than the width dimension of the susceptor, and the susceptor is exposed within the communication hole. A cartridge for smoking accessories characterized by the following features.

2. In the smoking device cartridge according to claim 1, A cartridge for a smoking device, characterized in that the packaging member has through holes formed therein that communicate with the aerosol-forming substrate.

3. In the smoking device cartridge according to claim 2, A cartridge for a smoking device, characterized in that the through-hole is formed at a position facing the upstream outer surface of the aerosol-forming substrate.

4. In the smoking device cartridge according to claim 2, A cartridge for a smoking device, characterized in that a void is defined between the aerosol-forming substrate and the lid, and the through-hole is formed at a position opposite to the void.

5. In the smoking device cartridge according to claim 1, A cartridge for a smoking device, characterized in that the lid is made of a heat-resistant material that is not breathable.

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