Flavor inhaler and insertion guide member

The flavor inhaler's insertion guide member with an annular protrusion addresses the challenge of stabilizing and guiding flavor generating articles, reducing friction and steam leakage, for a more efficient inhaler operation.

JP7742919B2Active Publication Date: 2025-09-22JAPAN TOBACCO INC
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Patent Information

Application Number
JP2024164767
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-09-24
Publication Date
2025-09-22
Estimated Expiration
2039-07-01

AI Technical Summary

Technical Problem

Existing flavor inhalers lack a novel structure that effectively guides and stabilizes the insertion of rod-shaped flavor generating articles while preventing leakage of hot steam and reducing friction during insertion and removal.

Method used

A flavor inhaler with an insertion guide member featuring an inner circumferential surface and an annular protrusion that surrounds and abuts against the flavor generating article, guiding its movement and reducing friction by distributing the normal force uniformly, while also preventing steam leakage.

Benefits of technology

The solution enhances the ease of inserting and removing flavor generating articles by reducing friction and preventing steam leakage, ensuring a stable and efficient operation of the flavor inhaler.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a flavor suction device having a new structure and an insertion guide member.SOLUTION: A flavor suction device is used together with a rod-shaped flavor generation article. The flavor suction device comprises an insertion guide member 17 having: an opening 61 into which the flavor generation article can be inserted; an inner peripheral face 62 which surrounds an outer periphery of the flavor generation article inserted from the opening 61; and an annular protrusion part 63 which protrudes from the inner peripheral face 62, extends the whole periphery of the inner peripheral face 62, and contacts with the flavor generation article over the whole periphery of an outer peripheral face of the inserted flavor generation article. The protrusion part 63 includes a part where a longitudinal position of the flavor generation article contacting with the outer peripheral face of the inserted flavor generation article is varied, in a circumferential direction of the inner peripheral face 62.SELECTED DRAWING: Figure 5
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Description

[Technical Field]

[0001] The present invention relates to a flavor inhaler and an insertion guide member. [Background technology]

[0002] Conventionally, flavor inhalers for inhaling flavors without burning a base material containing a flavor source have been known. As such flavor inhalers, an electric smoking system is known that includes a heating element that slides over a tobacco inserted into a tobacco receiver (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2001-521123 Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE INVENTION An object of the present invention is to provide a flavor inhaler and an insertion guide member having a new structure. [Means for solving the problem]

[0005] According to one embodiment of the present invention, there is provided a flavor inhaler for use with a rod-shaped flavor generating article. The flavor inhaler includes an insertion guide member having an opening through which the flavor generating article can be inserted, an inner circumferential surface surrounding the outer periphery of the flavor generating article inserted through the opening, and an annular protrusion protruding from the inner circumferential surface and extending around the entire periphery of the inner circumferential surface to abut against the outer periphery of the inserted flavor generating article along the entire periphery of the flavor generating article, the protrusion including a portion of the inner circumferential surface that changes the longitudinal position of the flavor generating article abutting against the outer periphery of the inserted flavor generating article.

[0006] According to another embodiment of the present invention, there is provided the flavor inhaler and the insertion guide member. [Brief explanation of the drawings]

[0007] [Figure 1A] 1 is an overall perspective view of a flavor inhaler according to an embodiment of the present invention; [Figure 1B] 1 is an overall perspective view of a flavor inhaler according to an embodiment of the present invention, in a state in which a flavor-generating article is held. [Figure 2] FIG. 2 is a cross-sectional view of a flavor generating article. [Figure 3] FIG. 3 is a cross-sectional view taken along the line 3-3 shown in FIG. 1A. [Figure 4] FIG. [Figure 5] FIG. 4 is a cross-sectional view of an insertion guide member. [Figure 6] FIG. 2 is a perspective view of an insertion guide member. [Figure 7] FIG. 2 is a cross-sectional perspective view of an insertion guide member. [Figure 8] FIG. 2 is a cross-sectional perspective view of an insertion guide member. [Figure 9] FIG. 2 is a plan view of an insertion guide member. [Figure 10] FIG. 10 is a bottom view of the insertion guide member. [Figure 11] FIG. 10 is a perspective view of a protrusion according to Modification 1. [Figure 12] 10 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 1. FIG. [Figure 13] 10 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 1. FIG. [Figure 14] FIG. 10 is a perspective view of a protrusion according to Modification 2. [Figure 15] 10 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 2. FIG. [Figure 16] 10 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 2. FIG. [Figure 17] FIG. 11 is a perspective view of a protrusion according to a third modification. [Figure 18] FIG. 10 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 3. [Figure 19]FIG. 10 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 3. [Figure 20] FIG. 10 is a perspective view of a protrusion according to a fourth modified example. [Figure 21] FIG. 10 is a cross-sectional view schematically showing an inner circumferential surface according to a fourth modification. [Figure 22] FIG. 10 is a cross-sectional view schematically showing an inner circumferential surface according to a fourth modification. [Figure 23] FIG. 13 is a perspective view of a protrusion according to a fifth modified example. [Figure 24] FIG. 13 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 5. [Figure 25] FIG. 13 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 5. [Figure 26] FIG. 13 is a perspective view of a protrusion according to a sixth modified example. [Figure 27] FIG. 13 is a cross-sectional view schematically showing an inner circumferential surface according to a sixth modification. [Figure 28] FIG. 13 is a cross-sectional view schematically showing an inner circumferential surface according to a sixth modification. [Figure 29] FIG. 13 is a perspective view of a protrusion according to a seventh modification. [Figure 30] FIG. 13 is a cross-sectional view schematically showing an inner circumferential surface according to a seventh modification. [Figure 31] FIG. 13 is a cross-sectional view schematically showing an inner circumferential surface according to a seventh modification. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings described below, identical or corresponding components are designated by the same reference numerals, and redundant description will be omitted. The flavor inhaler according to this embodiment is used together with a stick-shaped flavor generating product.

[0009] Fig. 1A is an overall perspective view of a flavor inhaler according to this embodiment. Fig. 1B is an overall perspective view of the flavor inhaler according to this embodiment in a state in which a flavor-generating article is held. The flavor inhaler 10 according to this embodiment is configured to generate aerosol containing a flavor by, for example, heating a flavor-generating article 110 having a flavor source containing an aerosol source.

[0010] As shown in Figures 1A and 1B, the flavor inhaler 10 has a top housing 11A, a bottom housing 11B, a cover 12, a switch 13, a lid portion 14, a first vent 15, and a cap 16. The top housing 11A and the bottom housing 11B are connected to each other to form the outermost housing 11 of the flavor inhaler 10. The outer housing 11 is sized to fit in a user's hand. When using the flavor inhaler 10, the user can hold the flavor inhaler 10 in their hand and inhale the flavor.

[0011] The top housing 11A has an opening (not shown), and the cover 12 is coupled to the top housing 11A to close the opening. As shown in FIG. 1B , the cover 12 has an opening 12a through which the flavor-generating article 110 can be inserted. The lid portion 14 is configured to open and close the opening 12a of the cover 12. Specifically, the lid portion 14 is attached to the cover 12 and configured to be movable along the surface of the cover 12 between a first position that closes the opening 12a and a second position that opens the opening 12a. In this way, the lid portion 14 can permit or restrict access of the flavor-generating article 110 to the interior of the flavor inhaler 10 (the opening 61 of the insertion guide member 17 shown in FIG. 4 ).

[0012] The switch 13 is used to switch the operation of the flavor inhaler 10 on and off. For example, as shown in FIG. 1B, a user operates the switch 13 while inserting the flavor-generating article 110 into the opening 12a, whereby power is supplied from a power source (not shown) to a heating element (not shown), and the flavor-generating article 110 can be heated without burning. When the flavor-generating article 110 is heated, aerosol evaporates from the aerosol source contained in the flavor-generating article 110, and the flavor of the flavor source is taken into the aerosol. A user operates the flavor inhaler of the flavor-generating article 110. By sucking on the part protruding from 10 (the part shown in FIG. 1B), the aerosol containing the flavor can be inhaled.

[0013] The first ventilation port 15 is a ventilation port for introducing air into the heating assembly 41 (see FIG. 3) housed in the internal space of the outer housing 11. The cap 16 is configured to be detachable from the bottom housing 11B. When the cap 16 is attached to the bottom housing 11B, the first ventilation port 15 is formed between the bottom housing 11B and the cap 16. The cap 16 may have, for example, a through-hole or a notch (not shown). In this specification, the longitudinal direction of the flavor inhaler 10 refers to the direction in which the flavor-generating article 110 is inserted into the opening 12a. In addition, in the flavor inhaler 10 of this specification, the side into which air flows (e.g., the first ventilation port 15 side) is defined as the upstream side, and the side from which air flows out (e.g., the opening 12a side) is defined as the downstream side.

[0014] Next, the configuration of the flavor generating article 110 used in the flavor inhaler 10 according to this embodiment will be described. FIG. 2 is a cross-sectional view of the flavor generating article 110. In the embodiment shown in FIG. 2, the flavor generating article 110 has a base member 110A including a filler 111 and a first wrapping paper 112 around which the filler 111 is wrapped, and a mouthpiece portion 110B forming an end portion opposite the base member 110A. The base member 110A and the mouthpiece portion 110B are connected by a second wrapping paper 113 that is different from the first wrapping paper 112. However, it is also possible to omit the second wrapping paper 113 and connect the base member 110A and the mouthpiece portion 110B using the first wrapping paper 112.

[0015] The mouthpiece section 110B in FIG. 2 has a paper tube section 114, a filter section 115, and a hollow segment section 116 disposed between the paper tube section 114 and the filter section 115. The hollow segment section 116 is composed of, for example, a packed layer having one or more hollow channels and a plug wrapper covering the packed layer. Because the packed layer has a high fiber packing density, when inhaling, air and aerosol flow only through the hollow channels and hardly at all within the packed layer. In flavor-generating article 110, when it is desired to reduce the loss of aerosol components due to filtration by the filter section 115, shortening the length of the filter section 115 and replacing it with the hollow segment section 116 is effective in increasing the amount of aerosol delivered.

[0016] 2 is composed of three segments, but in this embodiment, suction mouth section 110B may be composed of one or two segments, or may be composed of four or more segments. For example, suction mouth section 110B can be formed by omitting hollow segment section 116 and arranging cardboard tube section 114 and filter section 115 adjacent to each other.

[0017] 2, the longitudinal length of the flavor-generating article 110 is preferably 40 mm to 90 mm, more preferably 50 mm to 75 mm, and even more preferably 50 mm to 60 mm. The circumference of the flavor-generating article 110 is preferably 15 mm to 25 mm, more preferably 17 mm to 24 mm, and even more preferably 20 mm to 23 mm. In addition, the length of the base material 110A of the flavor-generating article 110 may be 20 mm, the length of the first wrapping paper 112 may be 20 mm, the length of the hollow segment 116 may be 8 mm, and the length of the filter 115 may be 7 mm, although the lengths of these individual segments can be changed as appropriate depending on manufacturing suitability, required quality, and the like.

[0018] In this embodiment, the filling 111 of the flavor-generating article 110 may contain an aerosol source that generates an aerosol when heated to a predetermined temperature. The type of aerosol source is not particularly limited, and extracts from various natural products and / or their constituent components may be selected depending on the application. Examples of the aerosol source include glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof. The content of the aerosol source in substance 111 is not particularly limited, and from the viewpoint of generating sufficient aerosol and imparting a good flavor and aroma, it is usually 5% by weight or more, preferably 10% by weight or more, and usually 50% by weight or less, preferably 20% by weight or less.

[0019] The filler 111 of the flavor-generating article 110 in this embodiment may contain tobacco shreds as a flavor source. The material of the tobacco shreds is not particularly limited, and known materials such as lamina or backbone can be used. The content of the filler 111 in the flavor-generating article 110 is, for example, 200 mg to 400 mg, and preferably 250 mg to 320 mg, for a circumference of 22 mm and a length of 20 mm. The moisture content of the filler 111 is, for example, 8 wt % to 18 wt %, and preferably 10 wt % to 16 wt %. This moisture content suppresses the occurrence of stains and improves the suitability for wrapping during the production of the base portion 110A. There are no particular limitations on the size or preparation method of the tobacco shreds used as the filler 111. For example, dried tobacco leaves shredded to a width of 0.8 mm to 1.2 mm may be used. Alternatively, dried tobacco leaves may be crushed and homogenized to an average particle size of approximately 20 μm to 200 μm, processed into a sheet, and then shredded to a width of 0.8 mm to 1.2 mm. Furthermore, the above-mentioned sheet may be gathered without being shredded and used as filler 111. Filler 111 may also contain one or more flavorings. While the type of flavoring is not particularly limited, menthol is preferred from the viewpoint of providing a good smoking experience.

[0020] In this embodiment, the first wrapping paper 112 and the second wrapping paper 113 of the flavor-generating article 110 can be made from base paper having a basis weight of, for example, 20 gsm to 65 gsm, preferably 25 gsm to 45 gsm. The thickness of the first wrapping paper 112 and the second wrapping paper 113 is not particularly limited, but is 10 μm to 100 μm, preferably 20 μm to 75 μm, and more preferably 30 μm to 50 μm, from the viewpoints of rigidity, breathability, and ease of adjustment during papermaking.

[0021] In this embodiment, the first cigarette paper 112 and the second cigarette paper 113 of the flavor-generating article 110 may contain a filler. The content of the filler may be 10% by weight to 60% by weight, preferably 15% by weight to 45% by weight, based on the total weight of the first cigarette paper 112 and the second cigarette paper 113. In this embodiment, the filler is preferably 15% by weight to 45% by weight for a preferred basis weight range (25 gsm to 45 gsm). Examples of fillers that can be used include calcium carbonate, titanium dioxide, and kaolin. Paper containing such a filler exhibits a bright white color that is preferable from the viewpoint of appearance when used as cigarette paper for the flavor-generating article 110, and can permanently maintain its whiteness. By incorporating a large amount of such a filler, the ISO whiteness of the cigarette paper can be increased to, for example, 83% or more. Furthermore, from the viewpoint of practical use as cigarette papers for the flavor-generating article 110, the first cigarette paper 112 and the second cigarette paper 113 preferably have a tensile strength of 8 N / 15 mm or more. This tensile strength can be increased by reducing the filler content. Specifically, the tensile strength can be increased by reducing the filler content below the upper limit of the filler content indicated in each of the basis weight ranges exemplified above.

[0022] Next, the internal structure of the flavor inhaler 10 shown in Figures 1A and 1B will be described. Figure 3 is a cross-sectional view taken along the line 3-3 in Figure 1A. As shown in Figure 3, the flavor inhaler 10 has a power supply unit 20, a circuit unit 30, and a heating unit 40 in the internal spaces of the outer housing 11 and the inner housing 18. The top housing 11A and the bottom housing 11B that make up the outer housing 11 surround the inner housing 18 and store the inner housing 18 in their internal spaces.

[0023] The circuit section 30 includes a first circuit board 31 and a second circuit board 32 that are electrically connected to each other. and a third circuit board 33. The first circuit board 31 is disposed, for example, as shown in the figure, adjacent to one surface of the rectangular power source 21 and extending in the longitudinal direction. A partition wall 34 is provided between the first circuit board 31 and the heating unit 40, thereby defining at least a portion of the area that houses the power source unit 20 and the first circuit board 31. The partition wall 34 may be provided with a notch, a through-hole, or the like that provides fluid communication between the space on the power source unit 20 side and the space on the heating unit 40 side.

[0024] The second circuit board 32 is disposed inside the top housing 11A between the cover 12 and the power supply unit 20, and extends in a direction perpendicular to the extension direction of the first circuit board 31. The switch 13 is disposed adjacent to the second circuit board 32. When a user presses the switch 13, a part of the switch 13 may come into contact with the second circuit board 32. The third circuit board 33 is disposed extending in the longitudinal direction in a space formed on the opposite side of the heating unit 40 from the opening 12a.

[0025] Third circuit board 33 has a main surface on which various electronic components are attached. For example, third circuit board 33 may be disposed inside bottom housing 11B so that its main surface is inclined relative to the longitudinal direction. This allows the main surface of third circuit board 33 to be enlarged, enabling effective use of the space inside bottom housing 11B.

[0026] The first circuit board 31, the second circuit board 32, and the third circuit board 33 each include, for example, a microprocessor, and can control the supply of power from the power supply unit 20 to the heating unit 40. This allows the first circuit board 31, the second circuit board 32, and the third circuit board 33 to control the heating of the flavor-generating article 110 by the heating unit 40.

[0027] The power supply unit 20 has a power source 21 electrically connected to the first circuit board 31, the second circuit board 32, and the third circuit board 33. The power source 21 may be, for example, a rechargeable battery or a non-rechargeable battery. The power source 21 is electrically connected to the heating unit 40 via at least one of the first circuit board 31, the second circuit board 32, and the third circuit board 33. This allows the power source 21 to supply power to the heating unit 40 so as to appropriately heat the flavor-generating article 110. As shown in the figure, the power source 21 is arranged in parallel with the heating unit 40. This prevents the longitudinal length of the flavor inhaler 10 from increasing even if the size of the power source 21 is increased.

[0028] The flavor inhaler 10 also has a terminal 22 that can be connected to an external power source. The terminal 22 can be connected to a cable such as a micro USB. If the power source 21 is a rechargeable battery, connecting the external power source to the terminal 22 allows current to flow from the external power source to the power source 21, thereby charging the power source 21. Furthermore, connecting a data transmission cable such as a micro USB to the terminal 22 may allow data related to the operation of the flavor inhaler 10 to be transmitted to an external device.

[0029] As shown in the figure, the heating section 40 has a heating assembly 41 extending in the longitudinal direction, a bottom cap 50 with an L-shaped cross section, and a generally cylindrical insertion guide member 17. The heating assembly 41 includes a plurality of cylindrical members and forms a cylindrical body as a whole. The heating assembly 41 is configured to be able to accommodate a portion of the flavor-generating article 110 therein, and has the functions of defining a flow path for air to be supplied to the flavor-generating article 110 and heating the flavor-generating article 110 from the outer periphery.

[0030] The bottom housing 11B is formed with a first vent 15 and a second vent 19 for allowing air to flow into the heating assembly 41. Specifically, the first vent 15 is in fluid communication with the upstream end of a flow path that passes through the bottom cap 50 and reaches the heating assembly 41. In other words, the first vent 15 is in fluid communication with the upstream end of the heating assembly 41 via the through flow path of the bottom cap 50. In addition, the second vent 19 is in fluid communication with the upstream end of the heating assembly 41 through the through flow path of the bottom cap 50. 18. The downstream end of air flow path 19A is fluidly connected to the upstream end of the flow path through bottom cap 50, so that second vent 19, like first vent 15, is ultimately in fluid communication with heating assembly 41.

[0031] The downstream end of the heating assembly 41 is fluidly connected to the upstream end of a flow path that passes through the insertion guide member 17 and leads to the opening 12a shown in FIG. 1B. The insertion guide member 17 is formed, for example, from a resin material and is a member provided between the cover 12 having the opening 12a and the downstream end of the heating assembly 41. When the flavor-generating article 110 is inserted into the flavor inhaler 10 through the opening 12a of the cover 12 as shown in FIG. 1B, it passes through the insertion guide member 17, and a portion of the flavor-generating article 110 is disposed inside the heating assembly 41. For this reason, the insertion guide member 17 is preferably formed so that the opening on the cover 12 side is larger than the opening on the downstream side of the heating assembly 41. This makes it easier to insert the flavor-generating article 110 into the insertion guide member 17 through the opening 12a.

[0032] 1B , when the flavor-generating article 110 is inserted into the flavor inhaler 10 through the opening 12a and the user inhales from the portion of the flavor-generating article 110 protruding from the flavor inhaler 10, i.e., the filter portion 115 shown in FIG. 2 , air flows into the heating assembly 41 through the first vent port 15 and the second vent port 19. The flowing air passes through the heating assembly 41 and reaches the user's mouth together with the aerosol generated from the flavor-generating article 110. Therefore, the side of the heating assembly 41 closer to the first vent port 15 and the second vent port 19 (the side closer to the bottom cap 50) is the upstream side, and the side of the heating assembly 41 closer to the opening 12a (the side closer to the insertion guide member 17) is the downstream side.

[0033] Next, the configuration of the heating unit 40 shown in Fig. 3 will be described. Fig. 4 is a cross-sectional view of the heating unit 40. As shown in Fig. 4, the heating unit 40 has a heating assembly 41, a bottom cap 50, and an insertion guide member 17. The heating assembly 41 has a cup-shaped container 42 that forms a chamber for accommodating the flavor-generating article 110, a heating member 43, a heat-shrinkable tube 44, and a heat-insulating member 45.

[0034] The container 42 has a first opening 42a at one end through which the flavor-generating article 110 can be inserted, and a second opening 42b at the other end that forms an air inlet, and is configured to accommodate the flavor-generating article 110. In this embodiment, the container 42 has an inner wall configured to contact at least a portion of the outer wall of the flavor-generating article 110 inserted through the first opening 42a. The container 42 also has a bottom wall 42d against which the tip of the flavor-generating article 110 inserted through the first opening 42a abuts. The second opening 42b is a through-hole formed in the bottom wall 42d of the container 42. The second opening 42b is located upstream of the air flow, and the first opening 42a is located downstream. In addition, a boss 42c configured to press the outer wall of the inserted flavor-generating article 110 radially inward is formed on the inner circumferential surface of the container 42 on the first opening 42a side.

[0035] The heating member 43 may be a flexible film heater configured by sandwiching a heating resistor between two films such as PI (polyimide). The heating member 43 is arranged so as to be in contact with the container 42. Specifically, in the example shown, the heating member 43 is arranged on the outer circumferential surface of the container 42, and the inner surface of the heating member 43 is in close contact with the outer surface of the container 42. Because the heating member 43 is arranged along the outer circumferential surface of the container 42, it is deformed into a generally cylindrical shape as a whole.

[0036] The heat-shrinkable tube 44 is cylindrical and keeps the heating element 43 in close contact with the container 42. Specifically, the heat-shrinkable tube 44 is thermally shrunk by applying heat while being disposed on the outer periphery of the heating element 43, thereby applying stress to the heating element 43 so as to press the heating element 43 against the container 42. Here, the heat-shrinkable tube 44 is thermally shrunk while covering a portion of the downstream side of the bottom cap 50, thereby keeping the container 42 and the bottom cap 50 in close contact with each other. It can be made to fit closely with 0.

[0037] The heat insulating member 45 is a tubular member having a double-pipe structure and is disposed radially outward from the heat-shrinkable tube 44 at a predetermined distance. The heat insulating member 45 includes an inner tubular member 45a, an outer tubular member 45b, a first annular member 45c, and a second annular member 45d. The inner tubular member 45a and the outer tubular member 45b are disposed side by side in the radial direction of the inserted flavor-generating article 110. The first annular member 45c is disposed downstream of the inner tubular member 45a and the outer tubular member 45b, and the second annular member 45d is disposed upstream of the inner tubular member 45a and the outer tubular member 45b. For example, the heat insulating member 45 may be a vacuum insulating material having reduced pressure air or a vacuum inside a double-pipe structure. Specifically, by reducing the pressure in the space formed by the inner tubular member 45a, the outer tubular member 45b, and the first annular member 45c and the second annular member 45d, the heat generated by the heating member 43 is less likely to be transmitted to the outside of the heating assembly 41. However, the structure of the heat insulating member 45 is not limited to the above, and the heat insulating member 45 in the drawing may be omitted.

[0038] The bottom cap 50 is a member that forms a pipe having a downstream end 50a that engages with the upstream end (the end on the second opening 42b side) of the container 42, and an upstream end 50b on the opposite side of the downstream end 50a. The bottom cap 50 forms an internal flow path that introduces air toward the second opening 42b of the container 42. The bottom cap 50 shown in FIG. 4 forms an internal flow path that is bent in an L-shape. In addition, the upstream end 50b of the bottom cap 50 is disposed close to or adjacent to the first air vent 15 and the air flow path 19A shown in FIG. 3.

[0039] The upstream end of the insertion guide member 17 (the end on the first opening 42a side) surrounds the outer periphery of the downstream end of the container 42, and a predetermined gap is provided between the insertion guide member 17 and the container 42. In other words, the upstream end of the insertion guide member 17 has an inner diameter larger than the outer diameter of the downstream end of the container 42, and is capable of accommodating the downstream end of the container 42.

[0040] Next, the configuration of the insertion guide member 17 shown in Fig. 4 will be described. Fig. 5 is a cross-sectional view of the insertion guide member 17. Fig. 6 is a perspective view of the insertion guide member 17. Figs. 7 and 8 are cross-sectional perspective views of the insertion guide member 17. Fig. 9 is a plan view of the insertion guide member. Fig. 10 is a bottom view of the insertion guide member.

[0041] 5 to 10, the insertion guide member 17 has an opening 61, an inner circumferential surface 62, a protruding portion 63, a guide portion 64, a groove portion 65, and an enclosing portion 66. The opening 61 communicates with the opening 12a of the cover 12, and is configured to allow the flavor-generating article 110 to be inserted therethrough. The inner circumferential surface 62 is configured to surround the outer periphery of the flavor-generating article 110 inserted through the opening 61. The inner circumferential surface 62 also has non-protruding portions 62a formed adjacent to the opening 61 side of the protruding portion 63 and the opposite side of the opening 61, and including an area spaced apart from the outer circumferential surface of the inserted flavor-generating article 110.

[0042] The protruding portion 63 is annular and protrudes from the inner circumferential surface 62, extending along the entire circumference of the inner circumferential surface 62. The protruding portion 63 is configured to abut against the inserted flavor generating article 110 along the entire outer circumferential surface of the flavor generating article 110. The protruding portion 63 includes a portion along the circumferential direction of the inner circumferential surface 62 where the longitudinal position of the inserted flavor generating article 110 that abuts against the inserted flavor generating article 110 changes. Specifically, the protruding portion 63 includes an inclined portion 63a, two convex portions 63b, and a pair of horizontal portions 63c. The inclined portion 63a is configured to extend obliquely with respect to the longitudinal direction of the inserted flavor generating article 110. Two convex portions 63b are provided so as to protrude toward the opening 61. The two convex portions 63b are arranged at equal intervals along the circumferential direction of the inner circumferential surface 62. The horizontal portions 63c extend perpendicular to the longitudinal direction of the inserted flavor-generating article 110 and face each other with respect to the central axis of the inserted flavor-generating article 110. The horizontal portion 63c forms the end portion of the protruding portion 63 opposite the opening 61 in the longitudinal direction of the inserted flavor generating article 110 (the lower side in FIG. 5).

[0043] The guide portion (second guide portion) 64 is provided on the inner circumferential surface 62 and is configured to extend along the longitudinal direction of the flavor generating article 110 inserted from the horizontal portion 63c to the opposite side of the opening 61 (the lower side in FIG. 5). The guide portion 64 guides the movement of the flavor generating article 110 relative to the inner circumferential surface 62. The guide portion 64 also has a guide surface 64a arranged to face the outer circumferential surface of the inserted flavor generating article 110. The guide surface 64a is configured to be spaced apart from the outer circumferential surface of the inserted flavor generating article 110 and to extend along the longitudinal direction of the inserted flavor generating article 110.

[0044] The groove portion 65 is provided on the opening 61 side of the insertion guide member 17 and is attached to the cover 12 to form a space for movement of the lid portion 14 that opens and closes the opening 12a of the cover 12. The surrounding portion 66 is provided on the opposite side of the insertion guide member 17 from the opening 61 (the upstream end of the insertion guide member 17), and is configured to surround the outer periphery of the downstream end of the container 42.

[0045] According to the above configuration, a region where the outer peripheral surface of the inserted flavor-generating article 110 is spaced from the inner peripheral surface 62, i.e., a gap, is formed at each position in the longitudinal direction of the flavor-generating article 110 in the region where the outer peripheral surface of the inserted flavor-generating article 110 abuts against the protruding portion 63. Therefore, even if the outer peripheral surface of the flavor-generating article 110 receives a pressing force from the protruding portion 63 when inserting and / or removing the flavor-generating article 110, at least a portion of the pressing force is used to move and / or deform the flavor-generating article 110 in the gap. Therefore, the normal force that the outer peripheral surface of the flavor-generating article 110 actually receives from the protruding portion 63 is smaller than the pressing force when no gap is formed. Thus, according to the above configuration, the normal force acting on the outer peripheral surface of the flavor-generating article 110 from the protruding portion 63 is smaller, thereby reducing the frictional force acting on the flavor-generating article 110 when inserting and / or removing the flavor-generating article 110.

[0046] Furthermore, since the protruding portion 63 abuts against the flavor generating article 110 along the entire outer periphery of the inserted flavor generating article 110, it is possible to prevent the hot steam generated in the heating unit 40 from leaking through the opening 61. The protruding portion 63 may be configured to abut against a portion of the inserted flavor generating article 110 in the longitudinal direction that is likely to elastically deform when subjected to a radially inward pressing force. For example, the protruding portion 63 may be configured to abut against the cardboard tube portion 114 of the flavor generating article 110 shown in FIG. 2.

[0047] Furthermore, the guide portion 64 has a guide surface 64a arranged to face the outer peripheral surface of the inserted flavor-generating article 110, and the guide surface 64a prevents the inserted flavor-generating article 110 from swinging around the horizontal portion 63c as a fulcrum.

[0048] The insertion guide member 17 may be formed by combining a plurality of members. This makes it possible to easily form an insertion guide member 17 having a complex shape. In this case, the protrusion 63 may be formed at the joint between the plurality of members. When a plurality of members are combined, a process for eliminating steps that occur at the joints between the members is required, but by actively using these steps as the protrusion 63, the process for eliminating the steps can be omitted.

[0049] Furthermore, in the above embodiment, the non-projecting portion 62a may be formed on only one of the opening 61 side and the opposite side of the opening 61 of the projecting portion 63. Furthermore, the convex portions 63b are not limited to two locations, and may be provided in three or more locations as long as they are arranged at equal intervals in the circumferential direction of the inner circumferential surface 62. The convex portion 63b may be provided in only one location on the inner circumferential surface 62. Furthermore, the guide portion (first guide portion) 64 may be configured to extend toward the opening 61 side (upper side in FIG. 5) along the longitudinal direction of the flavor-generating article 110 inserted from the horizontal portion 63c. Furthermore, The guide portion 64 may extend from only one of the horizontal portions 63c.

[0050] Modifications of the protrusion 63 and the guide portion 64 in the above embodiment will be described below.

[0051] (Variation 1) Fig. 11 is a perspective view of a protrusion according to Modification 1. Fig. 12 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 1. Fig. 13 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 1. Fig. 12 is a cross-sectional view of inner circumferential surface 62 taken along arrows 12-12 in Fig. 11, and Fig. 13 is a cross-sectional view of inner circumferential surface 62 taken along arrows 13-13 in Fig. 11.

[0052] 11 to 13, the protruding portion 63 is formed by an inclined portion 63a extending obliquely with respect to the longitudinal direction of the inserted flavor generating article 110. With the above configuration, the normal force acting from the protruding portion 63 on the outer peripheral surface of the flavor generating article 110 can be uniformly distributed in the longitudinal direction of the flavor generating article 110. Furthermore, in the region where the outer peripheral surface of the inserted flavor generating article 110 abuts against the protruding portion 63, there is one or two contact points between the protruding portion 63 and the flavor generating article 110 at each position in the longitudinal direction of the flavor generating article 110. Therefore, the gap becomes larger at each position in the longitudinal direction of the flavor generating article 110, making it easier for the flavor generating article 110 to move and / or deform.

[0053] (Variation 2) Fig. 14 is a perspective view of a protrusion according to Modification 2. Fig. 15 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 2. Fig. 16 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 2. Fig. 15 is a cross-sectional view of inner circumferential surface 62 taken along arrows 15-15 in Fig. 14, and Fig. 16 is a cross-sectional view of inner circumferential surface 62 taken along arrows 16-16 in Fig. 14.

[0054] 14 to 16, the protruding portion 63 is formed by an inclined portion 63a, similar to Modification 1. Furthermore, the guide portion (second guide portion) 64 is configured to extend from the end of the protruding portion 63 on the opening 61 side (upper side in FIG. 14) to the opposite side of the opening 61 (lower side in FIG. 14) along the longitudinal direction of the inserted flavor-generating article 110. Furthermore, the guide portion 64 has a guide surface 64a arranged to face the outer peripheral surface of the inserted flavor-generating article 110.

[0055] According to the above configuration, the guide surface 64a can prevent the inserted flavor-generating article 110 from swinging. Furthermore, the guide portion 64 extends from the end of the protruding portion 63 on the opening 61 side (upper side in FIG. 14) to the opposite side of the opening 61 (lower side in FIG. 14), so that the movement of the flavor-generating article 110 can be guided over a long range in the longitudinal direction of the flavor-generating article 110.

[0056] The guide portion 64 is not limited to extending from the end of the protruding portion 63 on the opening 61 side (upper side in FIG. 14), but may extend from any position on the protruding portion 63. The guide portion (first guide portion) 64 may also extend from the protruding portion 63 to the opening 61 side (upper side in FIG. 14) along the longitudinal direction of the inserted flavor-generating article 110.

[0057] (Variation 3) Fig. 17 is a perspective view of a protrusion according to Modification 3. Fig. 18 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 3. Fig. 19 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 3. Fig. 18 is a cross-sectional view of inner circumferential surface 62 taken along arrows 18-18 shown in Fig. 17, and Fig. 19 is a cross-sectional view of inner circumferential surface 62 taken along arrows 19-19 shown in Fig. 17.

[0058] 17 to 19, the protruding portion 63 includes an inclined portion 63a, two vertical portions 63d, and a horizontal portion 63c. The vertical portions 63d are configured to extend adjacent to each other along the longitudinal direction of the inserted flavor generating article 110. The horizontal portion (first horizontal portion) 63c extends perpendicular to the longitudinal direction of the inserted flavor generating article 110 and forms the end portion of the protruding portion 63 on the opening 61 side (upper side in FIG. 17) in the longitudinal direction of the inserted flavor generating article 110. Here, the vertical portion 63d extends from the end portion of the inclined portion 63a on the opening 61 side (upper side in FIG. 17) toward the opening 61, and the end portion of the vertical portion 63d on the opening 61 side is connected by the horizontal portion 63c.

[0059] According to the above configuration, the vertical portion 63d functions as an insertion guide that guides the movement of the flavor-generating article 110 relative to the inner circumferential surface 62, thereby eliminating the need for the guide portion 64 shown in Fig. 14. Furthermore, the horizontal portion 63c can function as a bearing that positions the inserted flavor-generating article 110 in the radial direction.

[0060] (Variation 4) Fig. 20 is a perspective view of a protrusion according to Modification 4. Fig. 21 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 4. Fig. 22 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 4. Fig. 21 is a cross-sectional view of inner circumferential surface 62 taken along arrows 21-21 in Fig. 20, and Fig. 22 is a cross-sectional view of inner circumferential surface 62 taken along arrows 22-22 in Fig. 20.

[0061] As shown in Figures 20 to 22, the protruding portion 63 includes an inclined portion 63a, a pair of vertical portions 63d, and a horizontal portion 63c. The vertical portion 63d is configured to extend along the longitudinal direction of the inserted flavor generating article 110. The horizontal portion (first horizontal portion) 63c extends perpendicular to the longitudinal direction of the inserted flavor generating article 110 and forms the end portion of the protruding portion 63 on the opening 61 side (upper side in Figure 20) in the longitudinal direction of the inserted flavor generating article 110. Here, the vertical portions 63d are arranged at approximately the middle position in the longitudinal direction of the inclined portion 63a so as to face each other with respect to the central axis of the inserted flavor generating article 110. Note that the horizontal portion 63c does not necessarily have to be provided.

[0062] According to the above configuration, the vertical portion 63d functions as an insertion guide that guides the movement of the flavor generating article 110 relative to the inner circumferential surface 62, thereby eliminating the need for the guide portion 64 shown in, for example, Figure 14. The horizontal portion 63c can function as a bearing that radially positions the inserted flavor generating article 110. Furthermore, by locating the vertical portion 63d at the longitudinal intermediate position of the inclined portion 63a, it is possible to prevent the end of the vertical portion 63d from getting caught on the flavor generating article 110 when inserting and / or removing the flavor generating article 110.

[0063] (Variation 5) Fig. 23 is a perspective view of a protrusion according to Modification 5. Fig. 24 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 5. Fig. 25 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 5. Fig. 24 is a cross-sectional view of inner circumferential surface 62 taken along arrows 24-24 shown in Fig. 23, and Fig. 25 is a cross-sectional view of inner circumferential surface 62 taken along arrows 25-25 shown in Fig. 23.

[0064] As shown in Figures 23 to 25, the protruding portion 63 includes four vertical portions 63d and four horizontal portions 63c. The vertical portions 63d are configured to extend along the longitudinal direction of the inserted flavor generating article 110. The horizontal portions 63c are configured to extend perpendicular to the longitudinal direction of the inserted flavor generating article 110 and to connect the ends of adjacent vertical portions 63d. Furthermore, the horizontal portions (first horizontal portion, second horizontal portion) 63c form the end portion on the opening 61 side (upper side in Figure 23) of the protruding portion 63 in the longitudinal direction of the inserted flavor generating article 110, and also form the end portion on the opposite side of the opening 61 (lower side in Figure 23). Here, the vertical portions 63d and the horizontal portions 63c form two convex portions 63b protruding toward the opening 61 side (upper side in Figure 23). The two convex portions (upward convex portions) 63b are arranged at equal intervals in the circumferential direction of the inner peripheral surface 62. Note that, when a horizontal portion 63c formed at the end of the protruding portion 63 on the opening 61 side is used as a reference, the vertical portion 63d and the horizontal portion 63c can also be considered to form two convex portions (downward convex portions) protruding to the opposite side of the opening 61 (the lower side in FIG. 23).

[0065] According to the above configuration, the vertical portion 63d functions as an insertion guide that guides the movement of the flavor-generating article 110 relative to the inner circumferential surface 62, thereby eliminating the need for the guide portion 64 shown in, for example, Figure 14. Furthermore, the horizontal portion 63c can function as a bearing that radially positions the inserted flavor-generating article 110. Furthermore, since the overall length of the protruding portion 63 can be increased, the function of the insertion guide can be more effectively exerted.

[0066] (Variation 6) Fig. 26 is a perspective view of a protrusion according to Modification 6. Fig. 27 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 6. Fig. 28 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 6. Fig. 27 is a cross-sectional view of inner circumferential surface 62 taken along arrows 27-27 shown in Fig. 26, and Fig. 28 is a cross-sectional view of inner circumferential surface 62 taken along arrows 28-28 shown in Fig. 26.

[0067] As shown in FIGS. 26 to 28, the protruding portion 63 includes an inclined portion 63a, two convex portions 63b, and four horizontal portions 63c. The convex portions 63b are provided in two locations so as to protrude toward the opening 61 (upper side in FIG. 26). The two convex portions 63b are arranged at equal intervals in the circumferential direction of the inner peripheral surface 62. The horizontal portions 63c are configured to extend perpendicular to the longitudinal direction of the inserted flavor-generating article 110. The horizontal portions (first horizontal portion, second horizontal portion) 63c form the end of the protruding portion 63 on the opening 61 side (upper side in FIG. 26) in the longitudinal direction of the inserted flavor-generating article 110, and also form the end on the opposite side of the opening 61 (lower side in FIG. 26). Here, the horizontal portions 63c are configured to be as short as possible.

[0068] According to the above configuration, by making the horizontal portion 63c as short as possible, it is possible to reduce the insertion resistance when inserting and / or removing the flavor-generating article 110 while retaining the bearing function of the horizontal portion 63c to radially position the inserted flavor-generating article 110.

[0069] (Variation 7) Fig. 29 is a perspective view of a protrusion according to Modification 7. Fig. 30 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 7. Fig. 31 is a cross-sectional view schematically showing an inner circumferential surface according to Modification 7. Fig. 30 is a cross-sectional view of inner circumferential surface 62 as seen from the arrow 30-30 in Fig. 29, and Fig. 31 is a cross-sectional view of inner circumferential surface 62 as seen from the arrow 31-31 in Fig. 29.

[0070] 29 to 31, the protrusion 63 includes an inclined portion 63a and two convex portions 63b. The convex portions 63b are provided in two locations so as to protrude toward the opening 61 side (upper side in FIG. 29). The two convex portions 63b are arranged at equal intervals in the circumferential direction of the inner circumferential surface 62.

[0071] According to the above configuration, by omitting the vertical portion extending along the longitudinal direction of the inserted flavor-generating article 110 and the horizontal portion extending perpendicular to the longitudinal direction of the inserted flavor-generating article 110, it is possible to prevent the flavor-generating article 110 from getting caught when inserting and / or removing the flavor-generating article 110.

[0072] Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications are possible within the scope of the claims and the technical ideas described in the specification and drawings. As long as they achieve the functions and effects of the present invention, they are within the scope of the technical idea of ​​the present invention.

[0073] Some of the aspects disclosed in this specification are described below. According to a first form, there is provided a flavor inhaler to be used together with a rod-shaped flavor generating article, the flavor inhaler comprising an insertion guide member having an opening into which the flavor generating article can be inserted, an inner peripheral surface surrounding the outer periphery of the flavor generating article inserted through the opening, and an annular protrusion protruding from the inner peripheral surface and extending around the entire circumference of the inner peripheral surface, and abutting against the flavor generating article around the entire circumference of the outer peripheral surface of the inserted flavor generating article, the protrusion including a portion that changes the longitudinal position of the flavor generating article abutting against the outer peripheral surface of the inserted flavor generating article in the circumferential direction of the inner peripheral surface.

[0074] According to the second embodiment, in the flavor inhaler of the first embodiment, the inner peripheral surface has a non-protruding portion formed adjacent to at least one of the opening side of the protruding portion and the side opposite the opening, and including an area spaced apart from the outer peripheral surface of the inserted flavor-generating article.

[0075] According to a third aspect, in the flavor inhaler of the first or second aspect, the protruding portion includes an inclined portion extending obliquely with respect to the longitudinal direction of the inserted flavor generating article.

[0076] According to the fourth embodiment, in the flavor inhaler of any of the first to third embodiments, the protrusion includes a plurality of convex portions protruding toward the opening side, and the plurality of convex portions are arranged at equal intervals in the circumferential direction of the inner peripheral surface.

[0077] According to the fifth aspect, in the flavor inhaler of any of the first to fourth aspects, the protruding portion includes at least one horizontal portion extending perpendicular to the longitudinal direction of the inserted flavor-generating article, and the at least one horizontal portion includes a first horizontal portion forming an end portion on the opening side of the protruding portion in the longitudinal direction and / or a second horizontal portion forming an end portion on the opposite side of the opening.

[0078] According to the sixth embodiment, in the flavor inhaler of any of the first to fourth embodiments, the protrusion includes a pair of horizontal portions that extend perpendicular to the longitudinal direction of the inserted flavor-generating article and that face each other relative to the central axis of the inserted flavor-generating article, and the pair of horizontal portions form opposite ends of the opening of the protrusion in the longitudinal direction.

[0079] According to the seventh form, in any of the flavor inhalers from the first form to the sixth form, the flavor inhaler includes at least one guide portion provided on the inner circumferential surface and configured to guide the movement of the flavor generating article relative to the inner circumferential surface, and the at least one guide portion includes a first guide portion extending toward the opening along the longitudinal direction of the flavor generating article inserted from the protrusion and / or a second guide portion extending to the opposite side of the opening.

[0080] According to an eighth aspect, in the flavor inhaler of the seventh aspect, the guide portion has a guide surface disposed so as to face the outer peripheral surface of the inserted flavor generating article.

[0081] According to a ninth aspect, in the flavor inhaler of the eighth aspect, the guide surface is configured to be spaced apart from the outer peripheral surface of the inserted flavor generating article and to extend along the longitudinal direction.

[0082] According to the tenth form, in the flavor inhaler of any of the first to third forms, the protrusion includes a pair of vertical portions extending adjacent to each other along the longitudinal direction of the inserted flavor-generating article, and a horizontal portion extending perpendicular to the longitudinal direction, the pair of vertical portions extending from the opening-side end of the inclined portion toward the opening side, and the opening-side ends of the pair of vertical portions are connected by the horizontal portion.

[0083] According to an eleventh aspect, in the flavor inhaler of any one of the first to third aspects, the protruding portion includes a pair of vertical portions extending along the longitudinal direction of the inserted flavor generating article, The pair of vertical portions are arranged to face each other in the longitudinal direction.

[0084] According to the twelfth form, in the flavor inhaler of the first or second form, the protrusion includes a plurality of vertical portions extending along the longitudinal direction of the inserted flavor-generating article, and a horizontal portion extending perpendicular to the longitudinal direction and connecting the ends of adjacent vertical portions, and the vertical portions and horizontal portions form an upward convex portion protruding toward the opening side and / or a downward convex portion protruding on the opposite side of the opening.

[0085] According to a thirteenth aspect, in the flavor inhaler of any one of the first to twelfth aspects, the insertion guide member is formed by combining a plurality of members, and the protrusion is formed at a joint between the plurality of members.

[0086] According to the fourteenth form, there is provided an insertion guide member for a rod-shaped flavor generating article, comprising an opening through which the flavor generating article can be inserted, an inner peripheral surface surrounding the outer periphery of the flavor generating article inserted through the opening, and an annular protrusion protruding from the inner peripheral surface and extending around the entire circumference of the inner peripheral surface, and abutting against the flavor generating article around the entire circumference of the outer peripheral surface of the inserted flavor generating article, wherein the protrusion includes a portion that changes the longitudinal position of the flavor generating article abutting against the outer peripheral surface of the inserted flavor generating article in the circumferential direction of the inner peripheral surface. [Explanation of symbols]

[0087] 10...Flavor aspirator 17...Insertion guide member 61...Aperture 62…Inner peripheral surface 62a...Non-protruding part 63...Protrusion 63a…Slope part 63b…Convex portion 63c…Horizontal part 63d…Vertical part 64...Guide part 64a...Guide surface 65...Groove 66...Encirclement 110...Flavor-generating items

Claims

1. A flavor inhaler to be used together with a stick-shaped flavor generating article, an opening into which the flavor-generating article can be inserted; an inner peripheral surface surrounding the outer periphery of the flavor-generating article inserted through the opening; an insertion guide member having a protruding portion protruding from the inner circumferential surface and coming into contact with the flavor-generating article, the protruding portion includes a plurality of convex portions protruding toward the opening, The insertion guide member is formed by combining a plurality of members, The protrusions are formed at the joints between the plurality of members. Flavor aspirator.

2. The flavor inhaler according to claim 1, The inner circumferential surface has a non-protruding portion formed adjacent to at least one of the opening side and the opposite side of the opening of the protruding portion, the non-protruding portion including a region spaced apart from the outer circumferential surface of the inserted flavor-generating article. Flavor aspirator.

3. The flavor inhaler according to claim 1 or 2, The protrusion includes an inclined portion extending obliquely with respect to the longitudinal direction of the inserted flavor-generating article. Flavor aspirator.

4. The flavor inhaler according to any one of claims 1 to 3, The plurality of convex portions are arranged at equal intervals in the circumferential direction of the inner circumferential surface. Flavor aspirator.

5. A flavor inhaler according to any one of claims 1 to 4, the protrusion includes at least one horizontal portion extending perpendicular to the longitudinal direction of the inserted flavor generating article; The at least one horizontal portion includes a first horizontal portion that forms an end portion of the protrusion on the opening side in the longitudinal direction and / or a second horizontal portion that forms an end portion on the opposite side of the opening. Flavor aspirator.

6. A flavor inhaler according to any one of claims 1 to 4, the protrusion includes a pair of horizontal portions extending perpendicular to the longitudinal direction of the inserted flavor-generating article and facing each other with respect to a central axis of the inserted flavor-generating article; The pair of horizontal portions form ends of the protrusion opposite the opening in the longitudinal direction. Flavor aspirator.

7. A flavor inhaler according to any one of claims 1 to 6, at least one guide portion provided on the inner circumferential surface and configured to guide movement of the flavor-generating article relative to the inner circumferential surface; The at least one guide portion includes a first guide portion extending toward the opening along the longitudinal direction of the flavor-generating article inserted from the protruding portion and / or a second guide portion extending toward the opposite side of the opening. Flavor aspirator.

8. The flavor inhaler according to claim 7, The guide portion has a guide surface disposed so as to face the outer peripheral surface of the inserted flavor-generating article. Flavor aspirator.

9. A flavor inhaler according to any one of claims 1 to 8, Further comprising a container capable of containing the flavor-generating article; an end portion of the insertion guide member opposite to the opening surrounds an outer periphery of an end portion of the container on the opening side; A predetermined gap is provided between the insertion guide member and the container. Flavor aspirator.

10. A flavor inhaler according to any one of claims 1 to 9, a heating element for heating the inserted flavor-generating article; a heat insulating member disposed at a distance from the heating member in a radial direction of the inserted flavor generating article, The heat insulating member is a vacuum heat insulating material having reduced pressure air or vacuum inside a double structure. Flavor aspirator.

11. A flavor inhaler according to any one of claims 1 to 10, the protrusion is configured to abut against a hollow portion of each portion in the longitudinal direction of the inserted flavor-generating article; Flavor aspirator.

12. A flavor inhaler according to any one of claims 1 to 11, The protruding portion includes a portion of the inner circumferential surface that abuts against the outer circumferential surface of the inserted flavor-generating article, and the portion changes the longitudinal position of the flavor-generating article. Flavor aspirator.

13. An insertion guide member for a stick-shaped flavor-generating article, an opening into which the flavor-generating article can be inserted; an inner peripheral surface surrounding the outer periphery of the flavor-generating article inserted through the opening; a protruding portion protruding from the inner circumferential surface and abutting against the flavor-generating article, the protruding portion includes a plurality of convex portions protruding toward the opening, The insertion guide member is formed by combining a plurality of members, The protrusions are formed at the joints between the plurality of members. Insertion guide member.

Citation Information

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