WO2023105657A1 - 非燃焼加熱型スティック、吸引システム - Google Patents
非燃焼加熱型スティック、吸引システム Download PDFInfo
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- A24D3/17—Filters specially adapted for simulated smoking devices
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/42—Cartridges or containers for inhalable precursors
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F47/00—Smokers' requisites not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
- A61M11/04—Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised
- A61M11/041—Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised using heaters
- A61M11/042—Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised using heaters electrical
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/06—Inhaling appliances shaped like cigars, cigarettes or pipes
Definitions
- the present invention relates to non-combustion heated sticks and suction systems.
- the smoking article described in U.S. Pat. No. 6,200,000 has a body of smokable material and a filter assembly.
- the filter assembly includes a cooling segment, a filter segment adjacent the cooling segment, and a mouth end segment received in the mouth of the user.
- the smoking article is configured such that a first portion of the cooling segment resides within the device and a second portion of the cooling segment extends out of the device when the smoking article is fully inserted into the device. It is A second portion of the cooling segment comprises a vent area that allows air to flow into the cooling segment and mix with the volatilized at least one component of the smokable material.
- a non-combustion heated smoking article described in US Pat. a member having a shape, wherein the mouth end of the cooling segment is joined to said member, and said perforation is provided at a position of 2 to 4 mm from said joining surface.
- An object of the present invention is to provide a non-combustion heating stick or the like that can increase the amount of aerosol that can be supplied into the oral cavity.
- the first feature of the present invention completed for this purpose is a base member including an aerosol source, and a tubular member that cools the vapor generated by heating the base member to generate an aerosol. and a filter portion through which the aerosol passes, wherein the cooling portion has an opening for allowing air to flow from the outside to the inside, and is 7 mm or more from the boundary between the cooling portion and the filter portion, or and a non-combustion heating stick formed at a position within 13 mm from the boundary between the cooling portion and the base portion.
- the opening may be formed at a position of 8 mm or more from a boundary between the cooling portion and the base portion.
- a third feature is that the opening may be formed at a position within 12 mm from a boundary between the cooling section and the filter section.
- the fourth feature is a base part including an aerosol source, and a cylindrical cooling part that cools vapor generated by heating the base part to generate aerosol. , a filter portion through which the aerosol passes, a holding portion that holds the non-combustion heating stick, a heating portion that heats the base portion, the holding portion and the heating portion.
- a suction device having a housing that accommodates the The cooling part of the non-combustion heating stick is held by a holding part and exposes at least a part of the filter part to the outside of the housing, and the cooling part of the non-combustion heating stick has an opening through which air flows into the non-combustion heating stick.
- the suction system is formed at a position within the housing while the combustion-heated stick is held by the holding portion.
- a fifth feature is that the holding part holds the non-combustion heating stick between the inner surface and the outer surface of the part of the cooling part of the non-combustion heating stick in which the opening is formed. A gap may be formed.
- a sixth feature is that the holding portion includes an insertion portion provided on the opening side, and an insertion portion provided on the side opposite to the opening with respect to the insertion portion so that the non-combustion heating stick is inserted in the direction of insertion.
- a compressing portion that compresses in a cross direction, the insertion portion being cylindrical with an inner diameter larger than the outer diameter of the outer surface of the non-combustion heating stick, and the holding portion being the non-combustion heating stick
- the aperture may be located inside the insertion portion while holding the stick.
- a seventh characteristic is that the opening may be formed at a position of 7 mm or more from the boundary between the cooling section and the filter section, or within 13 mm from the boundary between the cooling section and the base material section. .
- the air warmed by heating the base material portion is more effective than, for example, the case where the opening is formed at a position less than 8 mm from the boundary between the cooling portion and the base material portion. Since the inflow into the cooling section through the opening is suppressed, the amount of aerosol that can be supplied into the user's oral cavity can be increased.
- the openings are closer to the part where the substrate part is heated, compared to the case where the openings are formed at a position farther than 12 mm from the boundary between the cooling part and the filter part, for example.
- the amount of aerosol that can be supplied to the user's oral cavity can be increased.
- the openings are more likely to be positioned closer to the base material side than the boundary between the cooling part and the filter part, it is possible to increase the amount of aerosol that can be supplied into the oral cavity.
- a gap is formed with high accuracy between the inner surface of the insertion part and the outer surface of the part of the cooling part in which the opening is formed. It is possible to make it easier for the air to flow into the inside of the cooling part from.
- the seventh feature it is possible to increase the amount of aerosol that can be supplied into the oral cavity by being sucked using the suction device according to the fourth to sixth features.
- FIG. 4 is a diagram showing an example of a cross section taken along line IV-IV of FIG. 3; 5(a) is a diagram showing an example of a cross section taken along Va-Va in FIG. 4. FIG. 5(b) is a diagram showing an example of a cross section taken along line Vb-Vb of FIG. 4.
- FIG. 4 is a diagram showing an example of air flow during suction in the suction system; It is a figure which shows the longitudinal cross section of the stick which concerns on 2nd Embodiment.
- FIG. 1 is a diagram schematically showing an example of the schematic configuration of a suction system 1 according to the first embodiment.
- FIG. 2 is a diagram showing an example of a longitudinal section of the stick 2 according to the first embodiment.
- the suction system 1 includes a non-combustion heated stick (hereinafter sometimes referred to as a “stick”) 2 having an aerosol source that generates an aerosol when heated, and a stick 2 that generates an aerosol by heating.
- a suction device 100 is provided.
- the stick 2 comprises a substrate portion 10, a cooling portion 20 and a filter portion 30. As shown in FIG.
- the base material portion 10 is formed in a cylindrical shape.
- the direction of the centerline CL of the base member 10 may be referred to as the "centerline direction”.
- the stick 2 further includes a tipping paper 40 that integrates the base material portion 10, the cooling portion 20, and the filter portion 30 by winding them in order in the direction of the center line.
- one end side in the centerline direction (the left side in FIG. 2) may be referred to as the first side
- the other end side in the centerline direction (the right side in FIG. 2) may be referred to as the second side.
- the first side is the end side that is inserted into the suction device 100 .
- the second side is opposite to the first side and is the end side that the user holds in his/her mouth for suction.
- a cross section along the centerline direction is called a "longitudinal cross section", and a cross section taken along a plane perpendicular to the centerline direction is defined as a "transverse cross section”.
- the base member 10 has an aerosol source 11 that generates vapor from which an aerosol is generated when heated, and a wrapping paper 12 that covers the outer periphery of the aerosol source 11 .
- the base material part 10 is formed in a cylindrical shape by winding the aerosol source 11 around the wrapping paper 12 .
- the aerosol source 11 may be tobacco-derived, for example, tobacco cuts or tobacco raw materials molded into granules, sheets, or powder.
- the aerosol source 11 may also include non-tobacco sources made from plants other than tobacco, such as mints and herbs.
- the aerosol source 11 may contain perfume.
- the type of fragrance is not particularly limited, and menthol is particularly preferable from the viewpoint of imparting a good flavor.
- flavors may be used individually by 1 type, or may use 2 or more types together.
- the aerosol source 11 may contain a medicament for inhalation by the patient.
- the aerosol source 11 is not limited to solids, and may be polyhydric alcohols such as glycerin and propylene glycol, and liquids such as water.
- the base material part 10 is accommodated in the internal space of the holding part 130 while the stick 2 is held by the holding part 130 .
- the base material portion 10 formed by winding the aerosol source 11 with the wrapping paper 12 preferably has a columnar shape that satisfies a shape having an aspect ratio of 1 or more defined by the following formula (1).
- Aspect ratio h/w
- w is the width of the cross section of the base member 10
- h is the size of the base member 10 in the direction of the center line
- h ⁇ w is preferred.
- the shape of the cross section is not limited, and may be a polygon, a polygon with rounded corners, a circle, an ellipse, or the like. is the diameter of the circumscribed circle or the major axis of the circumscribed ellipse. It is preferable that the width of the cross section of the aerosol source 11 constituting the base material portion 10 is 4 mm or more and 9 mm or less.
- the size h of the base material portion 10 in the center line direction can be appropriately changed according to the size of the product. It is more preferable that it is above.
- the size h of the base material portion 10 in the center line direction is usually 70 mm or less, preferably 50 mm or less, more preferably 30 mm or less, and even more preferably 25 mm or less.
- the ratio of the size h of the base material part 10 to the size of the stick 2 is not particularly limited, but from the viewpoint of the balance between the delivery amount and the aerosol temperature, it is usually 10% or more, and 20%. It is preferably 25% or more, more preferably 30% or more.
- the ratio of the size h of the base material portion 10 to the size of the stick 2 is usually 80% or less, preferably 70% or less, more preferably 60% or less, and 50% or less. 45% or less is particularly preferable, and 40% or less is most preferable.
- the content of the aerosol source 11 in the base material portion 10 is not particularly limited, but may be 200 mg or more and 800 mg or less, preferably 250 mg or more and 600 mg or less. This range is particularly suitable for the base member 10 with a circumference of 22 mm and a size of 20 mm in the centerline direction.
- the cut tobacco material contained in the aerosol source 11 is not particularly limited, and known materials such as lamina and backbone can be used.
- dried tobacco leaves are pulverized to an average particle size of 20 ⁇ m or more and 200 ⁇ m or less to obtain pulverized tobacco, which is homogenized and processed into a sheet (hereinafter simply referred to as a homogenized sheet). It can be anything.
- a homogenizing sheet having a size approximately equal to the size in the center line direction of the base material part 10 is chopped substantially horizontally with the center line direction of the base material part 10, and the aerosol source 11 is filled with the so-called strand. It can be a type.
- the width of the chopped tobacco is preferably 0.5 mm or more and 2.0 mm or less for filling the aerosol source 11 .
- отно ⁇ еским can be used for the tobacco leaves used for producing the cut tobacco and the homogenized sheet.
- examples include yellow, burley, oriental, landrace, other Nicotiana-tabacum varieties, Nicotiana-Rustica varieties, and mixtures thereof.
- the mixture can be appropriately blended and used so as to obtain the desired taste. Details of tobacco varieties are disclosed in "Tobacco Encyclopedia, Tobacco Research Center, March 31, 2009".
- There are a number of conventional methods for producing homogenized sheets that is, methods for pulverizing tobacco leaves and processing them into homogenized sheets. The first is a method of producing a papermaking sheet using a papermaking process.
- the second method is to mix pulverized tobacco leaves with an appropriate solvent such as water to homogenize the mixture, and then thinly cast the homogenized product on a metal plate or metal plate belt and dry it to produce a cast sheet.
- a third method is to prepare a rolled sheet by mixing a suitable solvent such as water with pulverized tobacco leaves, homogenizing the mixture, and extruding the mixture into a sheet. Details of the types of homogenizing sheets are disclosed in "Encyclopedia of Tobacco, Tobacco Research Center, March 31, 2009".
- the water content of the aerosol source 11 can be 10% by mass or more and 15% by mass or less, preferably 11% by mass or more and 13% by mass or less, relative to the total amount of the aerosol source 11 . Such a water content suppresses the occurrence of winding stains, and improves the winding suitability of the base material portion 10 during manufacturing.
- the aerosol source 11 is not particularly limited, and may contain extracts from various natural products and/or constituents thereof, depending on the application. Extractable substances and/or constituents thereof may include glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof.
- the content of the extracting substance and/or its constituent components in the aerosol source 11 is not particularly limited, and from the viewpoint of sufficiently generating an aerosol and imparting a good flavor, it is usually It is 5% by mass or more, preferably 10% by mass or more.
- the content of the extractable substance and/or its constituent components in the aerosol source 11 is usually 50% by mass or less, preferably 15% by mass or more and 25% by mass or less.
- the packing density of the aerosol source 11 is not particularly limited, but is usually 250 mg/cm 3 or more, preferably 300 mg/cm 3 or more, from the viewpoint of securing the performance of the stick 2 and imparting a good flavor. Also, the packing density in the aerosol source 11 is usually 400 mg/cm 3 or less, preferably 350 mg/cm 3 or less.
- the aerosol source 11 may be composed of a tobacco sheet.
- the number of tobacco sheets may be one, or two or more.
- the aerosol source 11 is composed of one tobacco sheet
- a tobacco sheet having one side of a size approximately equal to the size in the center line direction of the object to be filled is used as the object to be filled.
- a filling mode (so-called gathered sheet) is exemplified in a state in which the sheet is folded back multiple times horizontally with respect to the center line direction of the sheet.
- a tobacco sheet having one side of which is approximately the same size as the centerline direction of the object to be filled is wound in a direction orthogonal to the centerline direction of the object to be filled. mentioned.
- the aerosol source 11 is composed of two or more tobacco sheets, for example, a plurality of tobacco sheets each having a size approximately equal to the size in the center line direction of the object to be filled
- a mode in which the material is wound in a direction orthogonal to the center line direction of the material to be filled so as to be arranged concentrically is exemplified.
- Concentrically arranged means that the centers of all the tobacco sheets are arranged at approximately the same position.
- Two or more tobacco sheets may all have the same composition or physical properties, or a part or all of each tobacco sheet may have different compositions or physical properties. Moreover, the thickness of each tobacco sheet may be the same or different. The thickness of each tobacco sheet is not limited, but is preferably 150 ⁇ m or more and 1000 ⁇ m or less, more preferably 200 ⁇ m or more and 600 ⁇ m or less, in terms of balance between heat transfer efficiency and strength.
- the aerosol source 11 prepares a plurality of tobacco sheets having different widths, prepares a laminated body in which the width decreases from the first side to the second side, passes the laminated body through a winding tube, and winds and forms the laminated body. It can be manufactured by According to this manufacturing method, the plurality of tobacco sheets extend in the centerline direction and are arranged concentrically around CL.
- the laminate is preferably prepared so that a non-contact portion is formed between adjacent tobacco sheets after roll-forming. If there is a non-contact portion (gap) between the plurality of tobacco sheets, which is not in contact with the tobacco sheets, the flavor flow path can be secured and the delivery efficiency of the flavor component can be enhanced. On the other hand, since the heat from the heating part 121 can be transferred to the outer tobacco sheets through the contact portions of the plurality of tobacco sheets, high heat transfer efficiency can be ensured. In order to provide a non-contact portion between a plurality of tobacco sheets where the tobacco sheets do not contact, for example, an embossed tobacco sheet is used, adjacent tobacco sheets are laminated without bonding the entire surfaces of adjacent tobacco sheets, and adjacent tobacco sheets are stacked together.
- the entire or part of the adjacent tobacco sheets are lightly adhered so that they can be separated after roll-forming, thereby preparing a laminate.
- the wrapping paper 12 may be arranged on the end surface of the first side of the laminate.
- the packing density of the aerosol source 11 is not particularly limited, but is usually 250 mg/cm 3 or more, preferably 300 mg/cm 3 or more, from the viewpoint of securing the performance of the stick 2 and imparting a good flavor. Also, the packing density of the aerosol source 11 is usually 400 mg/cm 3 or less, preferably 350 mg/cm 3 or less.
- Polyols such as glycerin, propylene glycol, and 1,3-butanediol may be added to tobacco sheets.
- the amount added to the tobacco sheet is preferably 5% by mass or more and 50% by mass or less, more preferably 15% by mass or more and 25% by mass or less, relative to the dry mass of the tobacco sheet.
- Tobacco sheets can be appropriately manufactured by known methods such as paper making, slurrying, and rolling. Note that the uniformizing sheet described above can also be used.
- papermaking it can be produced by a method including the following steps. 1) Dry tobacco leaves are crushed and extracted with water to separate the water extract and residue. 2) Dry and concentrate the water extract under reduced pressure. 3) Pulp is added to the residue, fiberized with a refiner, and then paper is made. 4) A concentrated solution of the water extract is added to the paper sheet and dried to obtain a tobacco sheet. In this case, a step of removing some components such as nitrosamine may be added (see JP-T-2004-510422). In the case of a slurry method, it can be manufactured by a method including the following steps.
- a non-woven tobacco sheet manufactured by a method including the following steps can also be used. 1) Mix powdered tobacco leaves and a binder. 2) The mixture is sandwiched between non-woven fabrics. 3) Forming the laminate into a certain shape by heat welding to obtain a non-woven tobacco sheet.
- the types of raw material tobacco leaves used in each of the above methods may be the same as those described for the aerosol source 11 containing cut tobacco.
- the composition of the tobacco sheet is not particularly limited, for example, the content of the tobacco raw materials (tobacco leaves) is preferably 50% by mass or more and 95% by mass or less with respect to the total mass of the tobacco sheet.
- the tobacco sheet may also contain a binder, and examples of such binders include guar gum, xanthan gum, carboxymethylcellulose, sodium salts of carboxymethylcellulose, and the like.
- the amount of the binder is preferably 1% by mass or more and 10% by mass or less with respect to the total mass of the tobacco sheet.
- the tobacco sheet may further contain other additives. Examples of additives include fillers such as pulp.
- the structure of the wrapping paper 12 used for the base material portion 10 is not particularly limited, and can be a general form, for example, one containing pulp as a main component.
- pulp in addition to wood pulp such as softwood pulp and hardwood pulp, non-wood pulp such as flax pulp, hemp pulp, sisal pulp, and esparto, which are generally used for wrapping paper 12 for tobacco products, can be used. It may be obtained by mixing and manufacturing.
- the types of pulp that can be used include chemical pulp, ground pulp, chemi-grand pulp, thermomechanical pulp, and the like prepared by kraft cooking, acid/neutral/alkaline sulfite cooking, soda salt cooking, and the like.
- the winding paper 12 is manufactured by preparing and uniforming the texture in the papermaking process using a fourdrinier paper machine, a cylinder paper machine, a circular and short composite paper machine, and the like. If necessary, a wet strength agent may be added to impart water resistance to the wrapping paper 12, or a sizing agent may be added to adjust the printing condition of the wrapping paper 12. Furthermore, aluminum sulfate, various anionic, cationic, nonionic or amphoteric retention improvers, drainage improvers, papermaking internal additives such as paper strength agents, and dyes, pH adjusters, Papermaking additives such as antifoam agents, pitch control agents, and slime control agents can be added.
- the basis weight of the base paper for the wrapping paper 12 is, for example, usually 20 gsm or more, preferably 25 gsm or more. On the other hand, the basis weight is usually 65 gsm or less, preferably 50 gsm or less, more preferably 45 gsm or less.
- the thickness of the wrapping paper 12 is not particularly limited, and is usually 10 ⁇ m or more, preferably 20 ⁇ m or more, more preferably 30 ⁇ m or more, from the viewpoints of rigidity, air permeability, and ease of adjustment during paper production.
- the thickness of the wrapping paper 12 is usually 100 ⁇ m or less, preferably 75 ⁇ m or less, more preferably 50 ⁇ m or less.
- the shape of the wrapping paper 12 for producing the base material part 10 can be square or rectangular.
- the length of one side can be about 12 mm or more and 70 mm or less. , and a more preferable length is about 23 mm.
- the aerosol source 11 is wound with the wrapping paper 12 in a cylindrical shape, for example, in the circumferential direction, the end of the wrapping paper 12 and the end of the wrapping paper 12 on the opposite side are overlapped by about 2 mm and glued to form a cylindrical paper. It has the shape of a tube in which the aerosol source 11 is filled.
- the size of the rectangular wrapping paper 12 can be determined by the size of the base material portion 10 .
- the paper wrapper 12 may also contain fillers.
- the content of the filler can be 10% by mass or more and less than 60% by mass, preferably 15% by mass or more and 45% by mass or less, based on the total mass of the wrapping paper 12 .
- the filler content is preferably 15% by mass or more and 45% by mass or less in a preferable basis weight range (25 gsm or more and 45 gsm or less).
- the filler content is preferably 15 mass % or more and 45 mass % or less, and when the basis weight is 35 gsm or more and 45 gsm or less, the filler content is 25 mass % or more. It is preferably 45% by mass or less.
- a filler calcium carbonate, titanium dioxide, kaolin, and the like can be used, but from the viewpoint of enhancing flavor and whiteness, it is preferable to use calcium carbonate.
- auxiliary agents other than base paper and fillers may be added to the wrapping paper 12.
- a water resistance improver may be added to improve water resistance.
- Water resistance improvers include wet strength agents (WS agents) and sizing agents.
- wet strength agents include urea formaldehyde resin, melamine formaldehyde resin, polyamide epichlorohydrin (PAE), and the like.
- sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol having a degree of saponification of 90% or more.
- a paper strength agent may be added, and examples thereof include polyacrylamide, cationic starch, oxidized starch, CMC, polyamide epichlorohydrin resin, polyvinyl alcohol, and the like.
- oxidized starch improves air permeability (Japanese Patent Application Laid-Open No. 2017-218699).
- a coating agent may be added to at least one of the front and back sides of the wrapping paper 12 .
- the coating agent is not particularly limited, but a coating agent capable of forming a film on the paper surface and reducing liquid permeability is preferred.
- alginic acid and its salts e.g. sodium salts
- polysaccharides such as pectin
- cellulose derivatives such as ethyl cellulose, methyl cellulose, carboxymethyl cellulose, nitrocellulose
- starch and derivatives thereof e.g. carboxymethyl starch, hydroxyalkyl starch and cationic starch
- ether derivatives such as starch acetate, starch phosphate and ester derivatives such as starch octenylsuccinate).
- the cooling unit 20 is arranged adjacent to the base material unit 10 and the filter unit 30, and has a cylindrical forming paper 21 having a hollow (cavity) cross section.
- the size of the cooling part 20 in the center line direction is 15 mm or more. Also, the size of the cooling part 20 in the center line direction is 35 mm or less, preferably 30 mm or less, and more preferably 25 mm or less.
- the forming paper 21 is cylindrical, and its inner diameter can be appropriately changed according to the size of the product.
- the inner diameter of the forming paper 21 is preferably substantially the same as the inner diameter of the wrapping paper 12 .
- the thickness of the molding paper 21 is not particularly limited, and may be, for example, 5 ⁇ m or more and 500 ⁇ m or less, or 10 ⁇ m or more and 250 ⁇ m or less.
- the material of the forming paper 21 is not particularly limited.
- pulp may be the main component, and polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polylactic acid, cellulose acetate, and aluminum foil may be used. It may be a caustic-based one, or any combination thereof.
- the forming paper 21 may be formed by a thin sheet of material that is crumpled to form channels and then pleated, gathered and folded to increase the inner surface area. .
- the cooling part 20 is provided with a plurality of openings V (also called “ventilation filter (Vf)" in this technical field) concentrically and circumferentially.
- the aperture V is a hole penetrating the forming paper 21 .
- the shape of the holes is circular.
- the shape of the aperture V may be a shape other than a circle, such as a polygonal shape, a polygonal shape with rounded corners, an elliptical shape, or the like. Due to the presence of the openings V, air flows into the inside of the forming paper 21 of the cooling unit 20 from the outside at the time of suction, and the temperature of steam and air flowing in from the base material unit 10 can be lowered.
- the apertures V are provided so that the ratio of air inflow through the apertures V is 10% by volume or more and 90% by volume or less when sucked at 17.5 ml/sec by an automatic smoking machine.
- This "air inflow ratio” is the volume ratio of the air that has flowed in from the opening V when the ratio of the air sucked from the mouth end is 100% by volume.
- the air inflow ratio is preferably 50% by volume or more and 80% by volume or less, more preferably 55% by volume or more and 75% by volume or less.
- the number of holes V per hole group is selected from the range of 5 to 50
- the diameter of the holes V is selected from the range of 0.1 to 0.5 mm.
- the air inflow ratio can be measured by a method conforming to ISO9512 using a winding quality measuring instrument (SODIMAX D74/SODIM manufactured by SAS). The region where the opening V exists will be described in detail later.
- the filter unit 30 includes a first filter 31 connected to the second side of the cooling unit 20 , a second filter 32 positioned on the second side of the first filter 31 , and a combination of the first filter 31 and the second filter 32 . It has a roll paper 33 that is wound outwardly and connects the first filter 31 and the second filter 32 .
- the first filter 31 has a hollow cross section and the second filter 32 has a solid cross section.
- the filter unit 30 is connected (coupling) to the cooling unit 20 by integrally winding the second-side end of the cooling unit 20 and the first-side end of the filter unit 30 using tip paper 40 . be done.
- the cross section of the outer periphery of the first filter 31 and the second filter 32 of the filter part 30 is substantially circular, and the diameter of the circle can be changed according to the size of the product, but is usually 4.0 mm or more. It is 9.0 mm or less, preferably 4.5 mm or more and 8.5 mm or less, and more preferably 5.0 mm or more and 8.0 mm or less. If the cross section is not circular, the above diameter is assumed to be a circle having the same area as that of the cross section, and the diameter of that circle is applied.
- the length of the cross section of the outer periphery of the first filter 31 and the second filter 32 can be changed as appropriate according to the size of the product. It is preferably 26.0 mm or less, more preferably 16.0 mm or more and 25.0 mm or less.
- the size of the filter part 30 in the center line direction can be appropriately changed according to the size of the product. More preferably, it is 15.0 mm or more and 25.0 mm or less.
- the shape and dimensions of the first filter 31 and the second filter 32 can be appropriately adjusted so that the shape and dimensions of the filter section 30 fall within the above ranges.
- the ventilation resistance per 120 mm of the size of the filter part 30 in the center line direction is not particularly limited, but is usually 40 mmH 2 O or more and 300 mmH 2 O or less, preferably 70 mmH 2 O or more and 280 mmH 2 O or less, It is more preferably 90 mmH 2 O or more and 260 mmH 2 O or less.
- the airflow resistance is measured according to the ISO standard method (ISO6565) using, for example, a Cerulean filter airflow resistance meter.
- the airflow resistance of the filter section 30 is determined by the air flow rate (17.5 cc/min) when air is flown from the first side to the second side in a state in which air does not pass through the side surface of the filter section 30. Refers to the pressure difference between the first side and the second side. Units are generally expressed in mmH2O .
- the first filter 31 and the second filter 32 are not particularly limited as long as they contain filter materials and have general filter functions.
- General functions of filters include, for example, adjusting the amount of air mixed when inhaling aerosols, etc., reducing flavor, reducing nicotine and tar, etc., but having all of these functions is not possible. don't need it.
- the non-combustion heating stick 2 which tends to produce fewer components and have a lower filling rate of the aerosol source 11 than cigarette products, the aerosol source 11 can be dropped while suppressing the filtering function. It is also one of the important functions to prevent
- the filter material that constitutes the first filter 31 and the second filter 32 is, for example, a cylindrically shaped filler such as acetate, charcoal, cellulose fiber, non-woven fabric, or pulp paper. Moreover, the aspect using the paper filter filled with the sheet-like pulp paper may be used.
- the density of the filter material is not particularly limited, it is usually 0.10 g/cm 3 or more and 0.25 g/cm 3 or less, preferably 0.11 g/cm 3 or more and 0.24 g/cm 3 or less. More preferably, it is 0.23 g/cm 3 or more and 0.23 g/cm 3 or less.
- the form of web 33 is not particularly limited, and may include one or more rows of adhesive-containing seams.
- the adhesive may comprise a hot melt adhesive, and the hot melt adhesive may comprise polyvinyl alcohol.
- the filter part 30 consists of two or more members, it is preferable that the roll paper is wound together with these two or more members.
- the material of the paper roll 33 is not particularly limited, and known materials can be used, and it may contain a filler such as calcium carbonate.
- the thickness of the paper roll 33 is not particularly limited, and is usually 20 ⁇ m or more and 140 ⁇ m or less, preferably 30 ⁇ m or more and 130 ⁇ m or less, and more preferably 30 ⁇ m or more and 120 ⁇ m or less.
- the basis weight of the paper roll 33 is not particularly limited, and is usually 20 gsm or more and 100 gsm or less, preferably 22 gsm or more and 95 gsm or less, and more preferably 23 gsm or more and 90 gsm or less. Further, the paper roll 33 may or may not be coated, but from the viewpoint of imparting functions other than strength and structural rigidity, it is preferably coated with a desired material.
- the configuration of the tipping paper 40 is not particularly limited, and can be in a general form, and for example, can include pulp as a main component.
- pulp in addition to being made from wood pulp such as softwood pulp and hardwood pulp, non-wood pulp such as flax pulp, hemp pulp, sisal pulp, and esparto, which are generally used for cigarette paper, are mixed. It may also be obtained by manufacturing. These pulps may be used singly or in combination of multiple types at any ratio.
- the tipping paper 40 may be composed of one sheet, or may be composed of a plurality of sheets or more.
- the tip paper 40 may be manufactured by the manufacturing method described above, or may be a commercially available product.
- the shape of the tipping paper 40 is not particularly limited, and can be square or rectangular, for example.
- the basis weight of the tipping paper 40 is not particularly limited, but is usually 32 gsm to 60 gsm, preferably 33 gsm to 55 gsm, more preferably 34 gsm to 53 gsm.
- the air permeability of the tipping paper 40 is not particularly limited, it is generally 0 Coresta unit or more and 30000 Coresta unit or less, and preferably more than 0 Coresta unit and 10000 Coresta unit or less. Air permeability is a value measured in accordance with ISO 2965:2009, and is expressed as the flow rate (cm 3 ) of gas passing through an area of 1 cm 2 per minute when the pressure difference between both sides of the paper is 1 kPa. be done.
- One Coresta unit (1 Coresta unit, 1 CU) is cm 3 /(min ⁇ cm 2 ) under 1 kPa.
- the chipping paper 40 may contain fillers other than the above pulp, for example, metal carbonates such as calcium carbonate and magnesium carbonate, metal oxides such as titanium oxide, titanium dioxide and aluminum oxide, barium sulfate, metal sulfates such as calcium sulfate, metal sulfides such as zinc sulfide, quartz, kaolin, talc, diatomaceous earth, gypsum, etc.; preferably contains These fillers may be used singly or in combination of two or more.
- the chipping paper 40 may contain various auxiliary agents, for example, a water resistance improver to improve water resistance.
- Water resistance improvers include wet strength agents (WS agents) and sizing agents.
- wet strength agents include urea formaldehyde resin, melamine formaldehyde resin, polyamide epichlorohydrin (PAE), and the like.
- sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol having a degree of saponification of 90% or more.
- a coating agent may be added to at least one of the front and back sides of the tip paper 40 .
- the coating agent is not particularly limited, but a coating agent capable of forming a film on the paper surface and reducing liquid permeability is preferred.
- a portion of the outer surface of the tipping paper 40 may be covered with a rip release material.
- the lip release material is configured to assist the user to easily release the contact between the lips and the tipping paper 40 without substantially sticking when the user mouths the filter portion 30 of the stick 2 .
- Lip release materials may include, for example, ethyl cellulose, methyl cellulose, and the like.
- the outer surface of the tipping paper 40 may be coated with a rip release material by applying an ethylcellulose-based or methylcellulose-based ink to the outer surface of the tipping paper 40 .
- a plurality of through holes 41 are formed in the chip paper 40 at positions facing the openings V provided in the cooling unit 20 .
- the shape and the like of the plurality of through holes 41 are not particularly limited as long as they are formed so as not to block the plurality of openings V provided in the cooling section 20 .
- one through-hole 41 may face one opening V, or one through-hole 41 may face two or more openings V.
- the tip paper 40 in which the through holes 41 are formed is placed outside the forming paper 21 so that the through holes 41 and the openings V face each other. can be exemplified by winding the tipping paper 40 on the .
- a through hole 41 may be formed.
- the suction device 100 includes a power supply unit 111 that accumulates power and supplies power to each component of the suction device 100, a sensor unit 112 that detects various information about the suction device 100, an information and a notification unit 113 for notifying the user of.
- the suction device 100 also includes a storage unit 114 for storing various information for the operation of the suction device 100, a communication unit 115 for transmitting and receiving information between the suction device 100 and other devices, and the suction device 100. and a control unit 116 that controls the overall operation of the.
- the suction device 100 also includes a heating portion 121 that heats the stick 2 , a heat insulating portion 122 that prevents heat transfer from the heating portion 121 to other components of the suction device 100 , and a holding portion 130 that holds the stick 2 . , is equipped with In the suction device 100 , the user performs suction while the stick 2 is held by the holding portion 130 .
- the suction device 100 also has a housing 110 that accommodates a power supply unit 111, a sensor unit 112, a notification unit 113, a storage unit 114, a communication unit 115, a control unit 116, a heating unit 121, a heat insulation unit 122, and a holding unit 130.
- the housing 110 is provided with an opening 110 a formed for inserting the stick 2 inside the housing 110 .
- materials forming the housing 110 include plastics and metal materials such as aluminum.
- the suction device 100 may be provided with an opening/closing lid (not shown) that opens and closes the opening 110a by being slid on the upper surface of the housing 110 .
- FIG. 3 is a diagram showing an example of a schematic configuration of the holding section 130.
- FIG. 4 is a diagram showing an example of a cross section taken along line IV-IV in FIG.
- FIG. 5(a) is a diagram showing an example of a cross-section taken along the line Va-Va in FIG.
- FIG. 5(b) is a diagram showing an example of a cross section taken along line Vb-Vb of FIG.
- the holding portion 130 includes an insertion portion 140 positioned on the side where the stick 2 is inserted, a compression portion 150 radially compressing the stick 2 , a connection portion 160 connecting the insertion portion 140 and the compression portion 150 , and the stick 2 . and a positioning portion 170 that determines the position in the center line direction of the.
- the insertion portion 140, the compression portion 150, and the connection portion 160 are cylindrical portions configured so that their center lines are the same.
- the insertion portion 140, the compression portion 150, and the connection portion 160 can be exemplified by being integrally molded and directly or indirectly fixed to the housing 110 (see FIG. 1).
- the material of the insertion portion 140, the compression portion 150 and the connection portion 160 can be exemplified by metal such as stainless steel.
- the insertion portion 140, the compression portion 150, and the connection portion 160 may contain a ceramic material. Examples of ceramic materials include alumina, aluminum nitride, and silicon nitride ceramics, which may be laminated and sintered.
- the holding section 130 holds the stick 2 inserted through the insertion section 140 by compressing it with the compression section 150 .
- the centerline direction of the insertion portion 140 , the compression portion 150 and the connection portion 160 and the centerline direction of the stick 2 are the same.
- the holding portion 130 contacts the positioning portion 170 inside the housing 110 at the first side end of the stick 2 in the center line direction, and the second end of the stick 2 in the center line direction contacts the housing 110 .
- the stick 2 is held so as to be exposed to the outside.
- the centerline direction of the stick 2 in the state where the stick 2 is held by the holding portion 130 is referred to as the vertical direction
- the side where the first end of the stick 2 in the centerline direction is located is the lower side
- the side on which the end of the second side in the centerline direction is located may be referred to as the upper side.
- the insertion portion 140 is a cylindrical portion.
- the inner diameter of the insertion portion 140 is larger than the outer diameter of the tipping paper 40 arranged on the outermost side of the stick 2 .
- An upper opening of the insertion portion 140 is provided at a position facing the opening 110 a of the housing 110 .
- the center of the opening 110a and the center of the insertion portion 140 are provided so as to match.
- the upper end of the insertion portion 140 and the inner surface of the housing 110 are in contact with each other, or are provided with a small gap (for example, 0.5 mm).
- the upper end portion of the insertion portion 140 exists inside the housing 110 by the thickness of the housing 110 plus the gap between the inner surface of the housing 110 and the upper surface of the housing 110 .
- the thickness of the housing 110 is 0.5 mm and the gap between the upper end of the insertion portion 140 and the inner surface of the housing 110 is 0.5 mm
- the upper end of the insertion portion 140 is 1 mm above the upper surface of the housing 110. exists inside.
- the upper end of the insertion portion 140 is preferably close to the upper surface of the housing 110, and should be within 1 mm from the upper surface of the housing 110. is desirable.
- the compression portion 150 is a bottomed tubular portion, and has a bottom portion 151 and a tubular portion 152 .
- a through hole 155 is formed in the center of the bottom portion 151 .
- the cylindrical portion 152 has a pair of flat plate-like opposed walls 156 that are opposed to each other with a distance smaller than the outer diameter D of the base portion 10 of the stick 2 .
- the compression section 150 differs from the insertion section 140 in that a pair of opposing walls 156 are provided when viewed in the vertical direction. That is, the compression portion 150 has a pair of arcuate portions 157 having the same shape as the insertion portion 140 and a pair of opposing walls 156 arranged on both sides of the pair of arcuate portions 157 .
- the pair of opposing walls 156 are provided so as to be parallel to each other in the vertical direction, and the distance B between the pair of opposing walls 156 is set to be smaller than the outer diameter D of the base member 10 of the stick 2. It is In the cross section of the pair of arcuate portions 157 , the diameter of the virtual circle passing through the inner surfaces of the pair of arcuate portions 157 is larger than the outer diameter D of the base portion 10 of the stick 2 .
- connection portion 160 is provided between the lower end portion of the insertion portion 140 and the upper end portion of the compression portion 150, and the cross section of the connection portion 160 changes from that of the insertion portion 140 to that of the compression portion 150 from the top to the bottom. It is a part that gradually changes to
- the positioning part 170 is a member mounted inside the compression part 150 .
- the positioning portion 170 includes a columnar body portion 171 having an outer surface along the inner surfaces of the bottom portion 151 and the cylindrical portion 152 of the compression portion 150, a lower projecting portion 172 projecting downward from the bottom surface of the body portion 171, and the top surface of the body portion 171. and a pair of upper protrusions 173 protruding upward from the .
- the lower projecting portion 172 has a columnar first columnar portion 175 and a second columnar portion 176 having a diameter smaller than that of the first columnar portion 175 .
- the first columnar portion 175 and the second columnar portion 176 are arranged side by side in the vertical direction so that the first columnar portion 175 is on the upper side and the second columnar portion 176 is on the lower side.
- the diameter of the first columnar portion 175 is slightly smaller than the diameter of the through hole 155 formed in the bottom portion 151 of the compression portion 150 .
- the positioning part 170 is attached to the compression part 150 with the first columnar part 175 and the second columnar part 176 passing through the through hole 155 and exposed to the outside of the compression part 150 .
- the upper projecting portion 173 has a rectangular parallelepiped shape, and when viewed in the vertical direction, the longitudinal direction is the direction along the inner surface of the opposing walls 156 of the compression portion 150, and the lateral direction is the direction in which the pair of opposing walls 156 face each other. are arranged as follows. That is, the pair of upper protruding portions 173 are provided with a predetermined gap G in the direction in which the pair of opposing walls 156 face each other. In addition, the longitudinal size of the upper protrusions 173 is larger than the interval B between the pair of opposing walls 156, and the pair of upper protrusions 173 are in contact with both of the pair of opposing walls 156, and the compressing portion is compressed. 150 is suppressed. Also, the size of the pair of upper projecting portions 173 in the vertical direction is the same.
- the upper surfaces of the pair of upper protruding portions 173 are arranged so that when the stick 2 is inserted into the compression portion 150, the tip of the base portion 10 of the stick 2 (in the direction of the center line) 1st side end surface).
- the stick 2 inserted into the compressing portion 150 is inserted to a prescribed position where the tip of the base portion 10 contacts the pair of upper projecting portions 173 .
- the base portion 10 is sandwiched between the pair of opposing walls 156 of the compression portion 150 and compressed.
- the tip of the base member 10 straddles the upper part of the gap G formed between the pair of upper protrusions 173 .
- the heating part 121 can be exemplified by a metal thin film heater or a film heater arranged along the outer peripheral surface of the cylinder part 152 of the compression part 150 .
- a metal thin film heater is a planar heat-generating heater that uses a metal thin film as a heating element and has flexibility.
- a film heater has, for example, a metal serving as a heating element and insulating films arranged on both sides of the metal to insulate the metal.
- stainless steel can be used as the metal for the heating element
- polyimide can be used as the insulating film.
- the heating unit 121 is electrically connected to the power supply unit 111 via electric wiring, and generates heat when power is supplied from the power supply unit 111 to heat the holding unit 130 .
- the base portion 10 of the stick 2 inserted into the holding portion 130 is heated via the holding portion 130 from the outer peripheral side.
- the heat insulating part 122 is arranged so as to cover at least the outer circumference of the heating part 121 .
- the heat insulating part 122 is configured by a vacuum heat insulating material, an airgel heat insulating material, or the like.
- a vacuum insulation material is, for example, a heat insulation material in which heat conduction due to gas is nearly zero by wrapping glass wool and silica (powder of silicon) in a resin film to create a high vacuum state. be.
- the heat insulation part 122 prevents the heat generated by the operation of the heating part 121 from being transferred to other components of the suction device 100 .
- the opening V is preferably formed at a position of 7 mm or more in the direction of the cooling section 20 (first side) from the boundary between the cooling section 20 and the filter section 30 . This is because not only the cooling capacity can be improved, but also the staying in the cooling part 20 of substances generated by heating the base material part 10 can be suppressed, and the amount of aerosol can be increased. In addition, the vapor generated from the aerosol as a condensation nucleus by heating the base material 10 comes into contact with the air from the outside before adhering to the inner surface of the forming paper 21, and the temperature is lowered and liquefied, and the aerosol is formed. It promotes being generated.
- the opening V is preferably formed at a position 12 mm or less from the boundary between the cooling section 20 and the filter section 30 toward the cooling section 20 side (first side).
- the opening V exists in a region separated from the boundary between the cooling part 20 and the base material part 10 by a predetermined distance or more in the direction toward the cooling part 20 (second side). This is to prevent the air warmed by heating the base material portion 10 from flowing into the cooling portion 20 through the opening V. As shown in FIG.
- the opening V is located between the cooling part 20 and the base material part 10 It is preferably formed at a position of 8 mm or more and 13 mm or less in the direction of the cooling unit 20 side (second side) from the boundary between the .
- the number of hole groups may be one, or two or more. When two or more hole groups are present, these hole groups are preferably formed at the positions described above.
- the stick 2 and the suction device are arranged such that the opening V in the state where the holding portion 130 holds the stick 2 is inside the housing 110 and inside the insertion portion 140 or the connection portion 160. 100 are configured. If the opening V provided in the outer peripheral portion of the cooling portion 20 is compressed by the cylindrical portion 152 of the compression portion 150, the amount of air flowing into the cooling portion 20 from the opening V is reduced. This is to prevent V from existing inside the cylinder portion 152 of the compression portion 150 . That the opening V exists inside the insertion portion 140 or the connection portion 160 means that the area in which the opening V exists in the vertical direction overlaps with the area in which the insertion portion 140 or the connection portion 160 is provided in the vertical direction. It is that you are.
- the distance L1 from the end surface (tip surface) on the first side in the center line direction of the stick 2 to the opening V is the distance from the upper surface of the pair of upper projecting portions 173 of the positioning portion 170 to the lower end of the connecting portion 160. (in other words, the upper end of the cylindrical portion 152 of the compression portion 150) and smaller than the distance L3 from the upper surface of the pair of upper projecting portions 173 to the upper end of the insertion portion 140. ing.
- the positioning portion 170 Since the lower surface of the main body portion 171 contacts the upper surface of the bottom portion 151 of the compression portion 150, the positioning portion 170 has a distance equal to the sum of the vertical size of the main body portion 171 and the vertical size of the upper projecting portion 173.
- L4 the distance L1 from the end surface of the stick 2 on the first side in the center line direction to the opening V is set as follows. That is, the distance L1 is greater than the distance L6 obtained by subtracting the distance L4 from the distance L5 from the lower end of the connecting portion 160 to the upper surface of the bottom portion 151 of the compression portion 150, and the distance L6 is greater than the distance L6 from the upper end of the insertion portion 140 to the bottom portion 151 of the compression portion 150. is set to be shorter than the distance L8 obtained by subtracting the distance L4 from the distance L7 to the upper surface of the .
- the heating portion 121 is arranged up to the upper end portion of the cylinder portion 152 of the compression portion 150 .
- the heating portion 121 is used in the cooling portion 20 in addition to the base portion 10 of the stick 2. It is preferable to heat the part on the base material part 10 side as well. For example, it is preferable to heat a region within a predetermined heating distance Lh in the direction from the boundary between the cooling unit 20 and the base material unit 10 toward the cooling unit 20 side.
- the distance L2 from the upper surface of the pair of upper projecting portions 173 of the positioning portion 170 to the upper end portion of the cylindrical portion 152 of the compressing portion 150 (in other words, the lower end portion of the connecting portion 160) of the base portion 10 of the stick 2 is It is preferable that the size is the sum of the size h in the direction of the center line and the heating distance Lh. It can be exemplified that the heating distance Lh is 5 mm.
- the opening V does not exist near the heating part 121 . This is because when the air heated by the heating unit 121 flows into the cooling unit 20 through the opening V, the generation of aerosol is less likely to be promoted. Therefore, it is preferable that the distance from the upper end portion of the cylindrical portion 152 of the compression portion 150 to the opening V in the vertical direction is equal to or greater than the predetermined lower limit distance Lm. It can be exemplified that the lower limit distance Lm is 3 mm.
- the opening V is located at (heating distance Lh + lower limit distance Lm) or more in the direction of the cooling unit 20 from the boundary between the cooling unit 20 and the base material unit 10. It is preferably formed in For example, when the heating distance Lh is 5 mm and the lower limit distance Lm is 3 mm, the opening V is formed at a position of 8 mm or more in the direction of the cooling part 20 from the boundary between the cooling part 20 and the base material part 10. It is preferable that Note that, for example, when the vertical dimension of the connection portion 160 is less than the lower limit distance Lm, the opening V exists inside the insertion portion 140 .
- FIG. 6 is a diagram showing an example of air flow during suction in the suction system 1.
- the stick 2 When sucking using the suction device 100 , the stick 2 is inserted to a prescribed position where the tip of the base member 10 comes into contact with the pair of upper projecting portions 173 of the holding portion 130 . Then, when the stick 2 is inserted to the specified position, the tip of the base member 10 straddles the upper part of the gap G formed between the pair of upper protrusions 173 . A gap exists between the inner surface of the pair of arcuate portions 157 of the holding portion 130 and the outer surface of the stick 2 .
- the air outside the housing 110 moves between the inner surface of the insertion portion 140 of the holding portion 130 and the outer surface of the stick 2 and the inner surface of the connecting portion 160 and the outer surface of the stick 2 . between the inner surface of the pair of arc-shaped portions 157 of the compression portion 150 and the outer surface of the stick 2 , and the gap G between the pair of upper projecting portions 173 from the tip of the base portion 10 to the base. It is introduced inside the member 10 . Then, the air introduced into the inside from the tip of the base member 10 and the vapor generated by heating the base member 10 are mixed and reach the inside of the cooling unit 20 .
- the air introduced from the outside of the housing 110 into the gap between the inner surface of the insertion portion 140 of the holding portion 130 and the outer surface of the stick 2 flows into the cooling portion 20 through the opening V.
- the vapor generated by heating the base material portion 10 comes into contact with the air that has flowed into the cooling portion 20 through the openings V, and the temperature decreases, thereby promoting the generation of aerosol.
- the air that has flowed into the cooling part 20 from the opening V cools the mixture of the air that has been introduced inside from the tip of the base material part 10 and the steam that is generated by heating the base material part 10. Since retention in the portion 20 is suppressed, the delivery amount of the aerosol is increased.
- the opening V in the state where the holding portion 130 holds the stick 2 exists inside the housing 110 and inside the insertion portion 140 or the connection portion 160, a plurality of openings are provided in the circumferential direction. A gap exists between the entrances of all the openings V formed and the inner surface of the insertion portion 140 or the connection portion 160 . Therefore, compared to the case where the opening V is present inside the compression part 150, the amount of air flowing in from the opening V is large, so it is possible to supply more aerosol into the user's oral cavity. .
- the size of the stick 2 protruding from the upper surface of the housing 110 in the center line direction is preferably within 25 mm.
- the stick 2 protruding from the top surface of the housing 110 is sucked by the user, so the size of the stick 2 protruding from the top surface of the housing 110 in the centerline direction is preferably 10 mm or more.
- the opening V in the state where the stick 2 is held by the holding portion 130 is the insertion portion.
- the sizes of the filter section 30 , the insertion section 140 , and the connection section 160 are preferably set so that they exist inside the 140 or the connection section 160 .
- the size of the stick 2 protruding from the top surface of the housing 110 in the center line direction is 25 mm
- the size of the filter section 30 in the center line direction is 20 mm
- the boundary between the cooling section 20 and the filter section 30 is 20 mm.
- the stick 2 includes the base portion 10 including the aerosol source, the cylindrical cooling portion 20 that cools the vapor generated by heating the base portion 10 to generate the aerosol, and a filter part 30 through which the aerosol passes.
- the cooling unit 20 has an opening V through which air flows from the outside to the inside. It is formed at a position within According to this stick 2, the vapor generated by heating the base material 10 is less likely to stay in the cooling unit 20, and the temperature drops before it adheres to the inner surface of the forming paper 21, thus generating an aerosol. is promoted, and the amount of aerosol that can be supplied to the user's oral cavity is increased.
- the opening V is formed at a position 8 mm or more from the boundary between the cooling section 20 and the base material section 10 .
- the air warmed by heating the base material portion 10 is suppressed from flowing into the cooling portion 20 through the openings V, so that the openings V are separated from the cooling portion 20 and the base material portion 10.
- the amount of aerosol that can be supplied to the user's oral cavity is increased compared to the case where it is formed at a position less than 8 mm from the boundary of the .
- the opening V is preferably formed within 12 mm from the boundary between the cooling section 20 and the filter section 30 . This makes it difficult for the openings V to be close to the portion where the substrate portion 10 is heated, so compared to the case where the openings V are formed at a position farther than 12 mm from the boundary between the cooling portion 20 and the filter portion 30. As a result, the amount of aerosol that can be supplied into the user's oral cavity increases.
- the suction system 1 includes a base portion 10 including an aerosol source, a cylindrical cooling portion 20 that cools vapor generated by heating the base portion 10 to generate an aerosol, and a cooling portion 20 that allows the aerosol to pass through.
- a stick 2 having a filter portion 30, a holding portion 130 holding the stick 2, a heating portion 121 heating the base portion 10, and a housing 110 accommodating the holding portion 130 and the heating portion 121.
- a suction device 100 holds at least the base portion 10 of the stick 2 inserted into the housing 110 through the opening 110 a formed in the housing 110 with the holding portion 130 , and at least part of the filter portion 30 is held in the housing 110 . expose to the outside.
- an opening V for allowing air to flow from the outside to the inside is formed at a position inside the housing 110 while the stick 2 is held by the holding portion 130 .
- the openings V are more likely to be located on the side of the substrate portion 10 from the boundary between the cooling portion 20 and the filter portion 30. Air flows into the interior of the cooling section 20 .
- the vapor generated by heating the base material 10 is less likely to stay in the cooling unit 20, and the temperature drops before it adheres to the inner surface of the forming paper 21, which promotes the generation of aerosol.
- the amount of aerosol that can be supplied into the user's oral cavity is increased.
- the holding portion 130 includes an insertion portion 140 provided on the side of the opening 110a and a compression portion 140 provided on the opposite side of the insertion portion 140 from the opening 110a for compressing the stick 2 in a direction intersecting the insertion direction. a portion 150;
- the insertion portion 140 has a cylindrical shape with an inner diameter larger than the outer diameter of the outer surface of the stick 2 , and the opening V is positioned inside the insertion portion 140 while the stick 2 is held by the holding portion 130 .
- the opening V in the state where the holding part 130 holds the stick 2 may exist inside the connection part 160 .
- a gap is also formed between the inner surface of the connecting part 160 and the outer surface of the cooling part 20 of the stick 2 where the opening V is formed. Air can easily flow into the interior of the cooling unit 20 from the opening.
- FIG. 7 is a view showing a longitudinal section of the stick 5 according to the second embodiment.
- the stick 5 according to the second embodiment differs from the stick 2 described above in the cooling section 520 corresponding to the cooling section 20 . Differences from the first embodiment will be described below.
- the same reference numerals are used for the same components as in the first embodiment, and detailed description thereof will be omitted.
- the cooling section 520 differs from the stick 2 in that it does not have a member corresponding to the forming paper 21 .
- the cooling part 520 is a space formed inside the stick 5 and is a cylindrical space surrounded by the base material part 10 , the filter part 30 and the tipping paper 40 .
- the through-holes 41 formed in the tipping paper 40 function as openings V through which air flows from the outside to the inside of the cooling part 520 .
- the position of the hole V in the center line direction is the same as the position of the hole V in the center line direction of the stick 2 according to the first embodiment.
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Abstract
Description
また、特許文献2に記載された非燃焼加熱喫煙物品は、たばこおよびエアロゾル生成基材を含むたばこ含有セグメントと、周上に穿孔を有する筒状の冷却セグメントと、冷却セグメントより小さい内径を有する筒状の部材と、を備え、冷却セグメントの吸い口方向の端が前記部材と接合されており、前記穿孔が前記接合面から2~4mmの位置に設けられている。
本発明は、口腔内へ供給可能なエアロゾル量を増加させることができる非燃焼加熱型スティック等を提供することを目的とする。
第2の特徴は、前記開孔は、前記冷却部と前記基材部との境界から8mm以上の位置に形成されていても良い。
第3の特徴は、前記開孔は、前記冷却部と前記フィルタ部との境界から12mm以内の位置に形成されていても良い。
他の観点から捉えると、第4の特徴は、エアロゾル源を含む基材部と、前記基材部が加熱されることで生成された蒸気を冷却してエアロゾルを生成する筒状の冷却部と、前記エアロゾルが通過するフィルタ部と、を有する非燃焼加熱型スティックと、前記非燃焼加熱型スティックを保持する保持部と、前記基材部を加熱する加熱部と、前記保持部及び前記加熱部を収容するハウジングと、を有する吸引装置と、を備え、前記吸引装置は、前記ハウジングに形成された開口部から当該ハウジング内に挿入された前記非燃焼加熱型スティックの少なくとも前記基材部を前記保持部にて保持するとともに少なくとも前記フィルタ部の一部を当該ハウジングの外に露出させ、前記非燃焼加熱型スティックの前記冷却部には、外部から内部に空気を流入させる開孔が、当該非燃焼加熱型スティックが前記保持部にて保持された状態で前記ハウジング内となる位置に形成されている、吸引システムである。
第5の特徴は、前記保持部は、前記非燃焼加熱型スティックを保持した状態で、内面と当該非燃焼加熱型スティックの前記冷却部における前記開孔が形成された部位の外面との間に隙間を形成しても良い。
第6の特徴は、前記保持部は、前記開口部側に設けられた挿入部と、当該挿入部に対して当該開口部とは反対側に設けられて前記非燃焼加熱型スティックを挿入方向と交差する方向に圧縮する圧縮部と、を有し、当該挿入部は、当該非燃焼加熱型スティックの前記外面の外径よりも大きな内径の円筒状であり、前記保持部が前記非燃焼加熱型スティックを保持した状態で、前記開孔は、前記挿入部の内部に位置しても良い。
第7の特徴は、前記開孔は、前記冷却部と前記フィルタ部との境界から7mm以上、又は、前記冷却部と前記基材部との境界から13mm以内の位置に形成されていても良い。
第2の特徴によれば、例えば開孔が冷却部と基材部との境界から8mm未満の位置に形成されている場合と比較して、基材部を加熱することにより温められた空気が開孔から冷却部の内部に流入することが抑制されるので、ユーザの口腔内へ供給可能なエアロゾル量を増加させることができる。
第3の特徴によれば、例えば開孔が冷却部とフィルタ部との境界から12mmより遠い位置に形成されている場合と比較して、開孔が、基材部を加熱する部位に近くなり難くなるので、ユーザの口腔内へ供給可能なエアロゾル量を増加させることができる。
第4の特徴によれば、開孔が、冷却部とフィルタ部との境界から、より基材部側に位置し易くなるので、口腔内へ供給可能なエアロゾル量を増加させることができる。
第5の特徴によれば、開孔から空気を冷却部の内部に流入し易くすることができる。
第6の特徴によれば、保持部がスティックを保持した状態で、挿入部の内面と冷却部における開孔が形成された部位の外面との間に確度高く隙間が形成されるので、開孔から空気を冷却部の内部に流入し易くすることができる。
第7の特徴によれば、第4~第6の特徴に係る吸引装置を用いて吸引されることで、口腔内へ供給可能なエアロゾル量を増加させることができる。
図1は、第1実施形態に係る吸引システム1の概略構成の一例を模式的に示す図である。
図2は、第1実施形態に係るスティック2の縦断面の一例を示す図である。
吸引システム1は、加熱されることでエアロゾルを生成するエアロゾル源を有する非燃焼加熱型スティック(以下、「スティック」と称する場合がある。)2と、スティック2を加熱することでエアロゾルを生成する吸引装置100とを備えている。
スティック2は、基材部10と冷却部20とフィルタ部30とを備える。基材部10は、円柱状に形成されている。以下、基材部10の中心線CLの方向を、「中心線方向」と称する場合がある。スティック2は、中心線方向に、基材部10、冷却部20、フィルタ部30の順に並べた状態で巻かれることで、これらを一体化する、チップペーパー40をさらに備える。以下、中心線方向の一方の端部側(図2においては左側)を第1側、中心線方向の他方の端部側(図2においては右側)を第2側と称する場合がある。第1側は吸引装置100に挿入される方の端部側である。第2側は第1側と反対側であり、ユーザが吸引のために口で咥える端部側である。また、中心線方向に沿った断面を「縦断面」と称し、中心線方向に直交する面にて切断した断面を「横断面」と定義する。
基材部10は、加熱されることでエアロゾルが生成される蒸気を生じるエアロゾル源11と、エアロゾル源11の外周を覆う巻紙12とを有している。基材部10は、エアロゾル源11が巻紙12に巻かれることで円柱状に形成されている。エアロゾル源11は、例えば、たばこ刻み又はたばこ原料を、粒状、シート状、又は粉末状に成形した加工物などの、たばこ由来のものであっても良い。また、エアロゾル源11は、たばこ以外の植物(例えばミント及びハーブ等)から作られた、非たばこ由来のものを含んでいても良い。一例として、エアロゾル源11は、香料を含んでいても良い。香料の種類は、特に限定されず、良好な香味の付与の観点から、特に好ましくはメンソールである。また、これらの香料は1種を単独で用いても、又は2種以上を併用しても良い。吸引装置100が医療用吸入器である場合、エアロゾル源11は、患者が吸入するための薬剤を含んでも良い。なお、エアロゾル源11は固体に限られるものではなく、例えば、グリセリン及びプロピレングリコール等の多価アルコール、並びに水等の液体であっても良い。基材部10は、スティック2が保持部130に保持された状態において、保持部130の内部空間に収容される。
アスペクト比=h/w・・・(1)
wは基材部10における横断面の幅、hは基材部10の中心線方向の大きさであり、h≧wであることが好ましい。横断面の形状は限定されず、多角、角丸多角、円、楕円等であって良く、幅wは横断面が円形の場合は直径、楕円形である場合は長径、多角形又は角丸多角である場合は外接円の直径又は外接楕円の長径である。基材部10を構成するエアロゾル源11における横断面の幅は4mm以上9mm以下であることが好ましい。
また、中心線方向において、スティック2の大きさに対する基材部10の大きさhの割合は、特段制限されないが、デリバリー量とエアロゾル温度のバランスの観点から、通常10%以上であり、20%以上であることが好ましく、25%以上であることがより好ましく、30%以上であることがさらに好ましい。また、スティック2の大きさに対する基材部10の大きさhの割合は、通常80%以下であり、70%以下であることが好ましく、60%以下であることがより好ましく、50%以下であることがさらに好ましく、45%以下であることが特に好ましく、40%以下であることが最も好ましい。
また、たばこ刻みの幅は、エアロゾル源11に充填するうえで0.5mm以上2.0mm以下であることが好ましい。
エアロゾル源11中の抽出物質及び/又はそれらの構成成分の含有量は、特に限定されず、十分にエアロゾルを生成させるとともに、良好な香味の付与の観点から、エアロゾル源11の全量に対して通常5質量%以上であり、好ましくは10質量%以上である。また、エアロゾル源11中の抽出物質及び/又はそれらの構成成分の含有量は、通常50質量%以下であり、好ましくは15質量%以上、25質量%以下である。
各たばこシートの厚みについては制限されないが、伝熱効率と強度の兼ね合いから、150μm以上1000μm以下が好ましく、200μm以上600μm以下がより好ましい。
この製造方法によれば、複数のたばこシートが、中心線方向に延在するとともに、CLを中心として同心状に配置されるようになる。
複数のたばこシート間に、たばこシートが接触しない非接触部を設けるために、例えば、エンボス加工したたばこシートを用いる、隣接するたばこシート同士の全面を接着せずに積層する、隣接するたばこシート同士の一部を接着して積層する、あるいは隣接するたばこシート同士の全面あるいは一部を、巻上げ成形後に剥がれるように軽度に接着して積層することで積層体を調製する方法を挙げることができる。
巻紙12を含めた基材部10を調製する場合には、積層体の第1側の端面に巻紙12を配置しても良い。
抄造の場合は、以下の工程を含む方法で製造できる。1)乾燥たばこ葉を粗砕し、水で抽出して水抽出物と残渣に分離する。2)水抽出物を減圧乾燥して濃縮する。3)残渣にパルプを加え、リファイナで繊維化した後、抄紙する。4)抄紙したシートに水抽出物の濃縮液を添加して乾燥し、たばこシートとする。この場合、ニトロソアミン等の一部の成分を除去する工程を加えても良い(特表2004-510422号公報参照)。
スラリー法の場合は、以下の工程を含む方法で製造できる。1)水、パルプ及びバインダーと、砕いたたばこ葉を混合する。2)混合物を薄く延ばして(キャストして)乾燥する。この場合、水、パルプ及びバインダーと、砕いたたばこ葉を混合したスラリーに対して紫外線照射もしくはX線照射することでニトロソアミン等の一部の成分を除去する工程を加えても良い。
前記の各方法で用いる原料のたばこ葉の種類は、たばこ刻みを含むエアロゾル源11で説明したものと同じものを用いることができる。
たばこシートの組成は特に限定されないが、例えば、たばこ原料(たばこ葉)の含有量はたばこシート全質量に対して50質量%以上95質量%以下であることが好ましい。また、たばこシートはバインダーを含んでもよく、係るバインダーとしては、例えば、グアーガム、キサンタンガム、カルボキシメチルセルロース、カルボキシメチルセルロースのナトリウム塩等が挙げられる。バインダー量としては、たばこシート全質量に対して1質量%以上、10質量%以下であることが好ましい。たばこシートはさらに他の添加物を含んでも良い。添加物としては、例えばパルプなどのフィラーを挙げることができる。
パルプの種類としては、クラフト蒸解法、酸性・中性・アルカリ亜硫酸塩蒸解法、ソーダ塩蒸解法等による化学パルプ、グランドパルプ、ケミグランドパルプ、サーモメカニカルパルプ等を使用できる。
巻紙12の厚みは、特に限定されず、剛性、通気性、及び製紙時の調整の容易性の観点から、通常10μm以上であり、好ましくは20μm以上であり、より好ましくは30μm以上である。また、巻紙12の厚みは、通常100μm以下であり、好ましくは75μm以下であり、より好ましくは50μm以下である。
基材部10を作製するための巻紙12の形状は正方形又は長方形を挙げることができる。
巻紙12では、好ましい坪量の範囲(25gsm以上45gsm以下)において、填料の含有量が15質量%以上45質量%以下であることが好ましい。
さらに、坪量が25gsm以上35gsm以下のとき、填料の含有量が15質量%以上45質量%以下であることが好ましく、坪量が35gsm以上45gsm以下のとき、填料の含有量が25質量%以上45質量%以下であることが好ましい。
填料としては、炭酸カルシウム、二酸化チタン、カオリン等を使用することができるが、香味や白色度を高める観点等から炭酸カルシウムを使用することが好ましい。
助剤として、紙力増強剤を添加してもよく、例えば、ポリアクリルアミド、カチオンでんぷん、酸化でんぷん、CMC、ポリアミドエピクロロヒドリン樹脂、ポリビニルアルコール等を挙げられる。特に、酸化でんぷんについては、極少量用いることにより、通気度が向上することが知られている(特開2017-218699号公報)。
冷却部20は、基材部10とフィルタ部30とに隣接して配置され、横断面が中空(空洞)となるように筒状に成形された成形紙21を有する。
冷却部20の中心線方向の大きさは、15mm以上である。また、冷却部20の中心線方向の大きさは、35mm以下であり、30mm以下であることが好ましく、25mm以下であることがより好ましい。冷却部20の中心線方向の大きさを上述した下限以上とすることで、十分な冷却効果を確保して良好な香味を得ることができ、上述した上限以下とすることで、生成した蒸気及びエアロゾルが成形紙21に付着することによるロスを抑制することができる。
成形紙21の材質は、特段制限されず、例えば、パルプが主成分のものであって良く、また、ポリエチレン、ポリプロピレン、ポリ塩化ビニル、ポリエチレンテレフタラート、ポリ乳酸、酢酸セルロース、及びアルミ箔のいずれかが主成分のもの、またはこれらの任意の組み合わせであって良い。
なお、成形紙21は、内側の表面積を増加させるために、チャネルを形成するためにしわ付けされて、次に、ひだ付け、ギャザー付け、及び折り畳まれた薄い材料のシートによって形成されても良い。
空気流入割合は、巻品質測定器(S.A.S社製造のSODIMAX D74/SODIM)を用い、ISO9512に準拠した方法で測定することができる。
開孔Vが存在する領域については後で詳述する。
フィルタ部30は、冷却部20の第2側に接続された第1フィルタ31と、第1フィルタ31の第2側に位置する第2フィルタ32と、第1フィルタ31と第2フィルタ32との外側に巻かれて第1フィルタ31と第2フィルタ32とを接続する巻取紙33とを有している。第1フィルタ31は横断面が中空であり、第2フィルタ32は横断面が中実である。フィルタ部30は、冷却部20の第2側の端部とフィルタ部30の第1側の端部とがチップペーパー40を用いて一体に巻き取られることで、冷却部20に接続(連結)される。
フィルタ部30の中心線方向の大きさは、製品のサイズに合わせて適宜変更し得るが、通常10.0mm以上30.0mm以下であり、12.5mm以上27.5mm以下であることが好ましく、15.0mm以上25.0mm以下であることがより好ましい。フィルタ部30の形状や寸法が上記範囲となるように、第1フィルタ31、第2フィルタ32の形状や寸法を適宜調整できる。
通気抵抗は、ISO標準法(ISO6565)に従って、例えばセルリアン社製フィルタ通気抵抗測定器を使用して測定される。フィルタ部30の通気抵抗は、フィルタ部30の側面における空気の透過が行なわれない状態で第1側から第2側に所定の空気流量(17.5cc/min)の空気を流した際の、第1側と第2側との気圧差を指す。単位は、一般的にはmmH2Oで表す。
フィルタ材の密度は、特段制限されないが、通常0.10g/cm3以上0.25g/cm3以下であり、0.11g/cm3以上0.24g/cm3以下であることが好ましく、0.12g/cm3以上0.23g/cm3以下であることがより好ましい。
巻取紙33の材料は特段制限されず、公知のものを用いることができ、また、炭酸カルシウム等の充填剤等を含んでいてよい。
巻取紙33の厚さは、特段制限されず、通常20μm以上140μm以下であり、30μm以上130μm以下であることが好ましく、30μm以上120μm以下であることがより好ましい。
巻取紙33の坪量は、特段制限されず、通常20gsm以上100gsm以下であり、22gsm以上95gsm以下であることが好ましく、23gsm以上90gsm以下であることがより好ましい。
また、巻取紙33は、コーティングされていても、されていなくとも良いが、強度や構造剛性以外の機能を付与できる観点からは、所望の材料でコーティングされることが好ましい。
チップペーパー40の構成は、特段制限されず、一般的な態様とすることができ、例えば、パルプが主成分のものを挙げることができる。パルプとしては、針葉樹パルプや広葉樹パルプなどの木材パルプで抄造される以外にも、亜麻パルプ、大麻パルプ、サイザル麻パルプ、エスパルトなど一般的にたばこ物品用の巻紙に使用される非木材パルプを混抄して製造して得たものでも良い。これらのパルプは、単独の種類で用いてもよく、複数の種類を任意の割合で組み合わせて用いても良い。
パルプの態様としては、クラフト蒸解法、酸性・中性・アルカリ亜硫酸塩蒸解法、ソーダ塩蒸解法等による化学パルプ、グランドパルプ、ケミグランドパルプ、サーモメカニカルパルプ等を使用できる。
なお、チップペーパー40は、上述の製造方法により製造したものでも、市販品を用いても良い。
チップペーパー40の形状は、特段制限されず、例えば、正方形又は長方形とすることができる。
チップペーパー40の通気度は、特段制限されないが、通常0コレスタユニット以上30000コレスタユニット以下であり、0コレスタユニット超10000コレスタユニット以下であることが好ましい。通気度は、ISO 2965:2009に準拠して測定される値であり、紙の両面の差圧が1kPaのときに、1分ごとに面積1cm2を通過する気体の流量(cm3)で表される。1コレスタユニット(1コレスタ単位、1C.U.)は、1kPa下においてcm3/(min・cm2)である。
図1に示すように、吸引装置100は、電力を蓄積するとともに、吸引装置100の各構成要素に電力を供給する電源部111と、吸引装置100に関する各種情報を検出するセンサ部112と、情報をユーザに通知する通知部113とを備えている。また、吸引装置100は、吸引装置100の動作のための各種情報を記憶する記憶部114と、吸引装置100と他の装置との間で情報を送受信するための通信部115と、吸引装置100の動作全般を制御する制御部116とを備えている。
図3は、保持部130の概略構成の一例を示す図である。
図4は、図3のIV-IV部の断面の一例を示す図である。
図5(a)は、図4のVa-Va部の断面の一例を示す図である。図5(b)は、図4のVb-Vb部の断面の一例を示す図である。
保持部130は、スティック2を挿入する側に位置する挿入部140と、スティック2を半径方向に圧縮する圧縮部150と、挿入部140と圧縮部150とを接続する接続部160と、スティック2の中心線方向の位置を定める位置決め部170とを備えている。
底部151には、中央部に貫通孔155が形成されている。
筒部152は、スティック2の基材部10の外径Dよりも小さい間隔で対向するように設けられた平板状の一対の対向壁156を有している。圧縮部150は、上下方向に見た場合に、挿入部140に対して、一対の対向壁156が設けられている点が異なる。つまり、圧縮部150は、挿入部140と同一形状である円弧状の一対の円弧状部157と、一対の円弧状部157の両側に配置された一対の対向壁156とを有している。
加熱部121は、圧縮部150の筒部152の外周面に沿って配置された、金属薄膜ヒータやフィルムヒータであることを例示することができる。金属薄膜ヒータは、発熱体に金属薄膜を使用するとともに柔軟性を有する面状発熱ヒータである。フィルムヒータは、例えば、発熱体となる金属と、その金属の両側に配置されて金属を絶縁する絶縁フィルムとを有する。発熱体となる金属は例えばステンレス、絶縁フィルムは例えばポリイミドであることを例示することができる。
断熱部122は、少なくとも加熱部121の外周を覆うように配置される。例えば、断熱部122は、真空断熱材、及びエアロゲル断熱材等により構成される。なお、真空断熱材とは、例えば、グラスウール及びシリカ(ケイ素の粉体)等を樹脂製のフィルムで包んで高真空状態にすることで、気体による熱伝導を限りなくゼロに近づけた断熱材である。そして、断熱部122は、加熱部121の作動により発せられた熱が吸引装置100の他の構成要素へ伝熱することを抑制する。
次に、スティック2の冷却部20に形成された開孔Vが存在する領域について説明する。以下、開孔Vにおける中心線方向の位置について言及する場合には、円形の開孔Vの円の中心の位置を意味する。なお、成形紙21の外側にチップペーパー40を巻いた後に、成形紙21とチップペーパー40とを同時に貫通することで、開孔Vとともに貫通孔41を形成している場合には、開孔Vと貫通孔41とは同じ領域に存在する。
吸引システム1においては、保持部130がスティック2を保持した状態における開孔Vが、ハウジング110の内部であって、挿入部140又は接続部160の内部に存在するように、スティック2及び吸引装置100が構成されている。冷却部20の外周部に設けられた開孔Vが圧縮部150の筒部152にて圧縮されると開孔Vから冷却部20内部に流入する空気の量が少なくなってしまうため、開孔Vが圧縮部150の筒部152の内部に存在しないようにするためである。開孔Vが挿入部140又は接続部160の内部に存在するとは、上下方向における開孔Vが存在する領域と、上下方向における挿入部140又は接続部160が設けられている領域とが重なっていることである。
なお、例えば、接続部160における上下方向の大きさが下限距離Lm未満である場合には、開孔Vは、挿入部140の内部に存在する。
吸引装置100を用いて吸引する際、スティック2は、基材部10の先端が保持部130の一対の上突出部173に接触する規定位置まで挿入される。そして、スティック2が規定位置まで挿入されると、基材部10の先端は、一対の上突出部173間に形成された隙間Gの上部を跨ぐ。また、保持部130の一対の円弧状部157の内面とスティック2の外面との間には隙間が存在する。それゆえ、ユーザにより吸引されると、ハウジング110の外部にある空気が、保持部130の挿入部140の内面とスティック2の外面との間の隙間、接続部160の内面とスティック2の外面との間の隙間、圧縮部150の一対の円弧状部157の内面とスティック2の外面との間には隙間、一対の上突出部173間の隙間Gを通って基材部10の先端から基材部10の内部に導入される。そして、基材部10の先端から内部に導入された空気と、基材部10が加熱されることで生成された蒸気とが混ざり合って冷却部20の内部に至る。
また、保持部130は、開口部110a側に設けられた挿入部140と、挿入部140に対して開口部110aとは反対側に設けられてスティック2を挿入方向と交差する方向に圧縮する圧縮部150と、を有する。そして、挿入部140は、スティック2の外面の外径よりも大きな内径の円筒状であり、保持部130がスティック2を保持した状態で、開孔Vは、挿入部140の内部に位置する。これにより、保持部130がスティック2を保持した状態で、挿入部140の内面とスティック2の冷却部20における開孔Vが形成された部位の外面との間に確度高く隙間が形成されるので、開孔Vから空気が冷却部20の内部に流入し易くなる。
図7は、第2実施形態に係るスティック5の縦断面を示す図である。
第2実施形態に係るスティック5は、上述したスティック2に対して、冷却部20に相当する冷却部520が異なる。以下、第1実施形態と異なる点について説明する。第1実施形態と同じものについては同じ符号を用い、その詳細な説明は省略する。
Claims (7)
- エアロゾル源を含む基材部と、
前記基材部が加熱されることで生成された蒸気を冷却してエアロゾルを生成する筒状の冷却部と、
前記エアロゾルが通過するフィルタ部と、
を備え、
前記冷却部には、外部から内部に空気を流入させる開孔が、前記冷却部と前記フィルタ部との境界から7mm以上、又は、前記冷却部と前記基材部との境界から13mm以内の位置に形成されている、
非燃焼加熱型スティック。 - 前記開孔は、前記冷却部と前記基材部との境界から8mm以上の位置に形成されている、
請求項1に記載の非燃焼加熱型スティック。 - 前記開孔は、前記冷却部と前記フィルタ部との境界から12mm以内の位置に形成されている、
請求項1に記載の非燃焼加熱型スティック。 - エアロゾル源を含む基材部と、前記基材部が加熱されることで生成された蒸気を冷却してエアロゾルを生成する筒状の冷却部と、前記エアロゾルが通過するフィルタ部と、を有する非燃焼加熱型スティックと、
前記非燃焼加熱型スティックを保持する保持部と、前記基材部を加熱する加熱部と、前記保持部及び前記加熱部を収容するハウジングと、を有する吸引装置と、
を備え、
前記吸引装置は、前記ハウジングに形成された開口部から当該ハウジング内に挿入された前記非燃焼加熱型スティックの少なくとも前記基材部を前記保持部にて保持するとともに少なくとも前記フィルタ部の一部を当該ハウジングの外に露出させ、
前記非燃焼加熱型スティックの前記冷却部には、外部から内部に空気を流入させる開孔が、当該非燃焼加熱型スティックが前記保持部にて保持された状態で前記ハウジング内となる位置に形成されている、
吸引システム。 - 前記保持部は、前記非燃焼加熱型スティックを保持した状態で、内面と当該非燃焼加熱型スティックの前記冷却部における前記開孔が形成された部位の外面との間に隙間を形成する、
請求項4に記載の吸引システム。 - 前記保持部は、前記開口部側に設けられた挿入部と、当該挿入部に対して当該開口部とは反対側に設けられて前記非燃焼加熱型スティックを挿入方向と交差する方向に圧縮する圧縮部と、を有し、当該挿入部は、当該非燃焼加熱型スティックの前記外面の外径よりも大きな内径の円筒状であり、
前記保持部が前記非燃焼加熱型スティックを保持した状態で、前記開孔は、前記挿入部の内部に位置する、
請求項5に記載の吸引システム。 - 前記開孔は、前記冷却部と前記フィルタ部との境界から7mm以上、又は、前記冷却部と前記基材部との境界から13mm以内の位置に形成されている、
請求項4から6のいずれか1項に記載の吸引システム。
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EP21967156.7A EP4445755A1 (en) | 2021-12-08 | 2021-12-08 | Non-combustion-heating-type stick, and inhalation system |
PCT/JP2021/045032 WO2023105657A1 (ja) | 2021-12-08 | 2021-12-08 | 非燃焼加熱型スティック、吸引システム |
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GB201608931D0 (en) | 2016-05-20 | 2016-07-06 | British American Tobacco Co | Article for use in apparatus for heating smokeable material |
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WO2014104078A1 (ja) | 2012-12-28 | 2014-07-03 | 日本たばこ産業株式会社 | 非燃焼吸引型たばこ製品用香味源及び非燃焼吸引型たばこ製品 |
JP2017218699A (ja) | 2016-06-09 | 2017-12-14 | 日本製紙パピリア株式会社 | 喫煙物品用巻紙 |
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