CN116867385A - Non-combustion heated tobacco products and non-combustion heated tobacco sticks - Google Patents

Abstract

A non-combustion heating tobacco product, which is equipped with an electric heating device and a tobacco rod. The tobacco rod is provided with: a tobacco rod part with a tobacco filler containing shredded tobacco; a mouthpiece part coaxially connected with the tobacco rod part; The heating device has a hollow tube heater defined to form a heating chamber inside. The hollow tube heater has a compression cylinder portion for compressing the tobacco rod portion from the outer peripheral side when the tobacco rod is inserted, and a heating wall portion formed of at least a part of the compression cylinder portion for heating the tobacco rod portion from the outer peripheral side. The tobacco filler is rolled by rolling paper in a state of randomly orienting shredded tobacco. The cross-sectional area of the tobacco rod is relatively large compared with the cross-sectional area of the inner cavity of the compression cylinder. The tobacco rod inserted into the compression cylinder is It is limited to being compressed by the inner wall surface of the compression cylinder.

Description

Non-combustion heated tobacco products and non-combustion heated tobacco sticks

Technical field

The invention relates to a non-combustion heated tobacco product and a non-combustion heated tobacco rod.

Background technique

A non-combustion heated tobacco product is known, which is provided with an electric heating device and a non-combustion heating tobacco rod used together with the electric heating device, the electric heating device having a heater assembly, as the heater assembly A battery unit of a power source, a control unit that controls a heating element of the heater assembly, and the like (see Patent Document 1, for example). An example of a non-combustion heated tobacco rod includes a tobacco rod having a tobacco filler containing a tobacco raw material (for example, shredded tobacco, tobacco particles, a molded body of tobacco sheets, etc.) and an aerosol generating source (glycerol, propylene glycol, etc.) and a rolling paper that wraps the tobacco filler; and a mouthpiece part that is coaxially connected to the tobacco rod part by being rolled with a sheet paper together with the tobacco rod part.

In addition, when using an electrically heated tobacco product, the non-combustion heated tobacco rod is inserted into the chamber of the heater assembly in the electrically heated device from the insertion port, and the heating element of the heater assembly is heated by the power supply from the battery unit. fever. As a result, the tobacco filler in the tobacco rod portion is heated, an aerosol is generated from the aerosol generation source contained in the tobacco filler, and the flavor component is delivered into the mouth.

existing technical documents

patent documents

Patent Document 1: International Publication No. 2017-198838

Patent Document 2: (Japan) Patent No. 5877618

Contents of the invention

Invent the problem to be solved

As a method of heating a non-combustion heated tobacco rod using an electric heating device, it is known that tobacco is heated from the outer circumferential side by a heating portion having a heating element disposed on the inner wall surface of a hollow tube defining a chamber of a heater assembly. The outside heating method of the rod. In such an external heating type electric heating device, from the viewpoint of increasing the delivery amount of flavor components, it is important to ensure the contact state between the tobacco rod inserted into the chamber and the heating part to improve heating efficiency.

On the other hand, as the tobacco raw material contained in the tobacco filler of the tobacco rod portion in the non-combustion heated tobacco rod, tobacco sheets are sometimes used, and the tobacco sheets are rolled and folded into pleats with paper to form the tobacco rod portion. . By defining folds of the tobacco sheets along the axial direction of the tobacco stem, a plurality of aerosol flow paths are formed between the pleated and folded tobacco sheets along the axial direction of the tobacco stem.

However, the non-combustion heated tobacco rod using pleated tobacco sheets as the tobacco raw material has a large cross-sectional area in each aerosol flow path formed between the pleated tobacco sheets. Therefore, for example, from the viewpoint of increasing the delivery amount of flavor components in a non-combustion heated tobacco rod, if a specification is adopted in which the tobacco rod portion inserted into the chamber on the device side is compressed from the outer peripheral side through the inner wall surface of the chamber, then When the tobacco rod is inserted into the chamber, the aerosol flow path formed as a large gap is flattened, and the ventilation resistance during smoking may change significantly. Furthermore, when manufacturing the tobacco rod, it is difficult to control the position of the aerosol flow path in its cross section, and there is also a concern that the ventilation resistance during smoking will easily vary among individual non-combustion heated tobacco rods.

The present invention was made in view of the above-mentioned actual circumstances, and an object thereof is to provide a technology for ensuring the delivery amount of flavor components in a non-combustion heated tobacco rod during smoking and suppressing variation in ventilation resistance.

solutions to problems

The technology of the present invention is a non-combustion heated tobacco product, which is provided with an electric heating device and a non-combustion heated tobacco rod used together with the electric heating device, wherein the non-combustion heating tobacco product A heated tobacco rod is provided with: a tobacco rod portion having a tobacco filler containing shredded tobacco and a rolling paper wrapping the tobacco filler; and a nozzle portion that is wrapped with the tobacco rod portion by a sheet paper. The tobacco rod parts are coaxially connected; the electric heating device is equipped with a hollow tube heater, and the hollow tube heater is limited to form a heating chamber inside into which the non-combustion heated tobacco rod can be inserted, The hollow tube heater has: a compression cylinder portion for compressing the tobacco rod portion from the outer circumferential side when the non-combustion heated tobacco rod is inserted; and a heating wall portion composed of at least one portion of the compression cylinder portion. A part is formed for heating the tobacco rod part from the outer peripheral side; the tobacco filler is rolled by the rolling paper in a state where the tobacco shreds are randomly oriented, and the cross-sectional area of the tobacco rod part is the same as the The internal hollow cross-sectional area of the compression cylinder is relatively large, and the tobacco rod inserted into the compression cylinder is limited to be compressed by the inner wall surface of the compression cylinder.

Here, the cross-sectional area of the tobacco rod part may be limited to a cross-sectional area after insertion into the compression tube part of 60% or more and 99% or less compared to before insertion.

In addition, the compression tube part may include a pair of opposing clamping wall parts extending along the axial direction of the compression tube part, and the tobacco rod part inserted into the compression tube part may be configured to be held by the clamping wall part. The inner wall surface of the clamping wall portion is compressed.

In addition, the inner wall surfaces of the pair of clamping wall portions may be arranged to face each other in parallel.

In addition, the diameter of the tobacco rod part may be limited to a size that is 105% or more and 200% or less with respect to the distance between the inner wall surfaces of the pair of clamping wall parts.

In addition, the non-combustion heated tobacco product may be configured such that when the non-combustion heated tobacco rod is inserted into a predetermined position in the heating chamber, the entire tobacco rod portion and the inhalation A part of the mouth is compressed by the inner wall surface of the compression cylinder.

In addition, the cross-sectional area of the nozzle part may be limited to 60% or more and 99% or less of the cross-sectional area after insertion into the compression tube part compared with before insertion.

In addition, the hollow tube may further include an insertion tube portion located on the insertion port side, and the internal hollow cross-sectional area of the insertion tube portion is relatively larger than the cross-sectional area of the tobacco rod portion.

Additionally, the present invention may be identified as a non-combustion heated tobacco rod for use with an electrically heated device. That is, the present invention is a non-combustion heated tobacco rod for use with an electrically heated device when inserted into a hollow defined as a heating chamber forming the electrically heated device inside. The non-combustion heated tobacco rod is heated from the outer circumferential side while inside the tube heater. The non-combustion heated tobacco rod is provided with: a tobacco rod portion having a tobacco filler containing shredded tobacco and a rolling paper in which the tobacco filler is rolled; and a mouthpiece portion. , which is coaxially connected to the tobacco rod part by being rolled with a sheet paper together with the tobacco rod part; the tobacco filler is rolled by the rolling paper in a state where the cut tobacco is randomly oriented, The cross-sectional area of the tobacco rod part is relatively large compared with the internal hollow cross-sectional area of the compression cylinder part, which is the compression cylinder part of the hollow tube heater and has a heating function from the outer peripheral side. The heating wall portion of the tobacco rod portion is limited to be compressed by the inner wall surface of the compression cylinder portion when the tobacco rod portion is inserted into the compression cylinder portion.

In addition, the means for solving the problem in this invention can be combined and adopted as much as possible.

Invention effect

According to the present invention, it is possible to provide a technology for ensuring the delivery amount of flavor components in a non-combustion heated tobacco rod during smoking and suppressing variation in ventilation resistance.

Description of the drawings

Fig. 1 is a perspective view of the tobacco rod according to the embodiment.

FIG. 2 is a diagram explaining the internal structure of the tobacco rod according to the embodiment.

3 is an external perspective view of the electric heating device according to the embodiment.

FIG. 4 is a diagram explaining the internal structure of the electric heating device according to the embodiment.

Fig. 5 is a perspective view of the hollow tube heater according to the embodiment.

Fig. 6 is a schematic diagram of a longitudinal cross-section of the hollow tube heater according to the embodiment.

Fig. 7 is an exploded view of the hollow tube heater according to the embodiment.

Fig. 8 is a perspective view of the chamber tube according to the embodiment.

9 is a view of the heating chamber of the hollow tube heater according to the embodiment as viewed from the insertion port side.

Fig. 10 is a perspective view of the plug member according to the embodiment.

Fig. 11 is a diagram showing a cross-section at position A-A of the hollow tube heater shown in Fig. 6 .

FIG. 12 is a diagram showing a cross section of the hollow tube heater shown in FIG. 6 at position B-B.

13 is a diagram illustrating a state in which a tobacco rod is inserted into a predetermined position in the heating chamber of the electric heating device according to the embodiment.

Detailed ways

Here, embodiments of the non-combustion heated tobacco products and non-combustion heated tobacco rods of the present invention will be described based on the drawings. It should be noted that the dimensions, materials, shapes, relative arrangements, etc. of the components described in this embodiment are only examples.

<Implementation>

FIG. 1 is a perspective view of a non-combustion heated tobacco rod (hereinafter, simply referred to as "tobacco rod") 100 according to the embodiment. FIG. 2 is a diagram explaining the internal structure of the tobacco rod 100 according to the embodiment. The tobacco rod 100 has a structure suitable for use with an electrically heated device 1 described below, and the electrically heated device 1 and the tobacco rod 100 constitute a non-combustion heated tobacco product. When using non-combustion heated tobacco products, the tobacco rod 100 can be freely inserted and removed from the heating chamber 60 through the insertion port (indicated by reference numeral 5A in FIGS. 4, 6, etc.) of the electric heating device 1.

The tobacco rod 100 of the embodiment has a substantially cylindrical rod shape. In the example shown in FIGS. 1 and 2 , the tobacco rod 100 includes a tobacco rod portion 110 , a nozzle portion 120 , and a sheet paper 130 that integrally connects them. The mouthpiece part 120 is coaxially connected to the tobacco rod part 110 by being rolled up with the sheet paper 130 together with the tobacco rod part 110.

Reference numeral 101 is the mouth end of the tobacco rod 100 (nozzle part 120). Reference numeral 102 is the front end of the tobacco rod 100 on the opposite side to the mouth end 101 . The tobacco rod 110 is arranged on the front end 102 side of the tobacco rod 100 . In the examples shown in FIGS. 1 and 2 , the tobacco rod 100 has a substantially constant diameter throughout the entire length along the length direction from the mouth end 101 to the front end 102 .

[sheet paper]

The material of the sheet paper 130 is not particularly limited, and paper made of general plant fiber (pulp), paper using polymer-based chemical fiber (polypropylene, polyethylene, nylon, etc.), polymer-based paper can be used. Paper, metal foil such as aluminum foil, etc., or composite materials combining them. For example, the sheet paper 130 may be made of a composite material obtained by bonding a metal foil to a paper base material. It should be noted that the sheet paper 130 here refers to a sheet material that connects a plurality of segments in the tobacco rod 100, such as connecting the tobacco rod part 110 and the nozzle part 120.

The basis weight of the sheet paper 130 is not particularly limited, but is usually 32 gsm or more and 40 gsm or less, preferably 33 gsm or more and 39 gsm or less, and more preferably 34 gsm or more and 38 gsm or less. The air permeability of the sheet paper 130 is not particularly limited, but is usually from 0 collector units to 30,000 collector units, preferably from 0 collector units to 10,000 collector units. Air permeability is a value measured in accordance with ISO 2965:2009 and is expressed by the flow rate (cm ³ ) of gas passing through an area of 1 cm ² per minute when the pressure difference on both sides of the paper is 1 kPa. 1 collector unit (1 collector unit, 1C.U.) is cm ³ /(min·cm ² ) at 1 kPa.

The sheet paper 130 may contain fillers in addition to the above-mentioned pulp. For example, metal carbonates such as calcium carbonate and magnesium carbonate, metal oxides such as titanium oxide, titanium dioxide, and aluminum oxide, and metal sulfates such as barium sulfate and calcium sulfate can be used. Salt, metal sulfides such as zinc sulfide, quartz, kaolin, talc, diatomaceous earth, gypsum, etc., especially calcium carbonate are preferably contained from the viewpoint of improving whiteness, opacity and increasing heating speed. Moreover, these fillers may be used individually by 1 type, and may be used in combination of 2 or more types.

In addition to the above-mentioned pulp or filler, the sheet paper 130 may also add various auxiliary agents. For example, the sheet paper 130 may have a water resistance improving agent for improvement. Water resistance improving agents include wet paper strength enhancers (WS agents) and sizing agents. Examples of wet paper strength enhancers include urea formaldehyde resin, melamine formaldehyde resin, polyamide epichlorohydrin (PAE), and the like. Examples of sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), highly saponified polyvinyl alcohol with a saponification degree of 90% or more, and the like.

A coating agent can be added to at least one of the front and back surfaces of the sheet paper 15 . The coating agent is not particularly limited, but a coating agent that can form a film on the surface of paper and reduce liquid permeability is preferred.

The manufacturing method of the sheet paper 130 is not particularly limited, and general methods can be applied. For example, in the case of a method using pulp as the main component, examples of using pulp include a Fourdrinier wire paper machine, a rotary screen paper machine, This method is used to organize and homogenize the texture in the papermaking process of round-short composite papermaking machines. It should be noted that, as needed, a wet paper strength enhancer can be added to impart water resistance to the roll paper, or a sizing agent can be added to adjust the printing conditions of the roll paper.

<Tobacco stem>

The structure of the tobacco rod portion 110 is not particularly limited, and a general method can be adopted. For example, a tobacco rod portion in which the tobacco filler 111 is wrapped in a wrapping paper 112 may be used.

[Tobacco filler]

In this embodiment, the tobacco filler 111 includes shredded tobacco. The material of the shredded tobacco contained in the tobacco filler 111 is not particularly limited, and publicly known materials such as leaves and leaf stems can be used. In addition, the dried tobacco leaves may be pulverized so that the average particle diameter is 20 μm or more and 200 μm or less to prepare a pulverized tobacco product, which may be homogenized and processed into a sheet (hereinafter also simply referred to as a homogenized sheet). ), chop it into pieces. Furthermore, it may be a so-called roll type in which a homogenized sheet having a length approximately the same as the longitudinal direction of the tobacco rod is cut into pieces substantially horizontally to the longitudinal direction of the tobacco rod and then filled into the tobacco rod. In addition, the width of the shredded tobacco is preferably 0.5 mm or more and 2.0 mm or less after filling the tobacco rod portion 110 . In addition, the content of dry tobacco leaves contained in the tobacco stem 110 is not particularly limited, but may be 200 mg/stem or more and 800 mg/stem or less, preferably 250 mg/stem or more and 600 mg/stem or less. This range is particularly suitable for the tobacco rod 110 with a circumference of 22 mm and a length of 20 mm.

Regarding the tobacco leaves used for the production of shredded tobacco and homogenized sheets, various types of tobacco can be used. Examples include yellow varieties, Burley varieties, Oriental varieties, native varieties, other tobacco varieties, Nicotiana tabacum varieties, and mixtures thereof. Regarding the mixture, each of the above varieties can be mixed appropriately to achieve the target taste. Details of the above-mentioned tobacco varieties are disclosed in "Tobacco Affairs, Tobacco Comprehensive Research Center, March 31, 2009". There are various existing methods for manufacturing the above-mentioned homogenized sheet, that is, a method of crushing tobacco leaves and processing them into a homogenized sheet. The first method is to use papermaking technology to make paper sheets. The second method is to mix crushed tobacco leaves with an appropriate solvent such as water and homogenize it, then pour the homogenized product thinly on a metal plate or metal plate strip, and dry it to produce a cast sheet. The third method is to mix an appropriate solvent such as water with the crushed tobacco leaves and homogenize them, and then extrusion mold them into a sheet shape to produce a rolled sheet. The types of the above-mentioned homogenized sheets are disclosed in detail in "Tobacco Affairs, Tobacco Comprehensive Research Center, March 31, 2009".

The moisture content of the tobacco filler 111 may be 10% by weight or more and 15% by weight or less based on the total amount of the tobacco filler 111, and is preferably 11% by weight or more and 13% by weight or less. If the moisture content is such, the occurrence of winding stains is suppressed, and the winding adaptability during manufacturing of the tobacco rod portion 110 is improved. There are no particular restrictions on the size of the shredded tobacco contained in the tobacco filler 111 and its preparation method. For example, dried tobacco leaves may be chopped into tobacco leaves with a width of 10.5 mm or more and 2.0 mm or less. In addition, when using the pulverized product of a homogenized sheet, it is also possible to grind and homogenize the dried tobacco leaves so that the average particle diameter is about 20 μm to 200 μm, process the sheet, and chop it into pieces. Sheets with a width of 0.5mm or more and 2.0mm or less.

Tobacco filler 111 may also include an aerosol substrate that generates aerosol smoke. The type of the aerosol base material is not particularly limited, and extracts derived from various natural products and/or their constituent components can be selected according to the use. Examples of the aerosol base material include glycerol, propylene glycol, glycerol triacetate, 1,3-butanediol, and mixtures thereof. The content of the aerosol base material in the tobacco filler 111 is not particularly limited. From the perspective of fully generating the aerosol and imparting a good flavor, it is usually 5% by weight or more, preferably 10% by weight, based on the total amount of the tobacco filler. % or more, and usually 50 wt% or less, preferably 15 wt% or more and 25 wt% or less.

Tobacco filler 111 may also include flavors. The type of the fragrance is not particularly limited. From the viewpoint of imparting good fragrance, examples include acetoanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, Trans-arnitol, anise oil, apple juice, Peruvian balm, beeswax oil, benzaldehyde, benzoins, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3- Butanedione, 2-butanol, butyrate, butyric acid, caramel, cardamom oil, carob extract, beta-carotene, carrot juice, L-carboxylic acid, beta-caryophyllene, cinnamon bark oil, Cypress oil, celery seed oil, chamomile oil, cinnamic aldehyde, cinnamic acid, cinnamyl alcohol, cinnamyl cinnamic acid ester, citronella oil, DL-citronellol, clary sage extract, cocoa, coffee, cognac oil , coriander oil, cuminaldehyde, safflower oil, δ-decanolide, γ-decanolide, capric acid, dill weed oil, 3,4-dimethyl-1,2-cyclopentanedione, 4,5-dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, 3,7-dimethyl-6-octenoic acid, 2,3-dimethylpyrazine, 2, 5-dimethylpyrazine, 2,6-dimethylpyrazine, ethyl 2-methylbutyrate, ethyl acetate, ethyl butyrate, ethyl hexanoate, ethyl isovalerate, ethyl lactate , Ethyl laurate, ethyl levulinate, ethyl maltitol, ethyl caprylate, ethyl oleate, ethyl palmitate, ethyl phenyl acetate, ethyl propionate, ethyl stearate, valeric acid Ethyl ester, ethyl vanillin, ethyl vanillin glucoside, 2-ethyl-3, (5 or 6)-dimethylpyrazine, 5-ethyl-3-hydroxy-4-methyl- 2-(5H)furanone, 2-ethyl-3-methylpyrazine, phyllyl alcohol, fenugreek extract, common extract, gentian root extract, geraniol, geranyl acetate, grape juice , guaiacol, guar extract, γ-heptane lactone, γ-caprolactone, caproic acid, cis-3-hexen-1-ol, hexyl acetate, hexanol, hexyl phenylacetate , honey, 4-hydroxy-3-valerolactone, 4-hydroxy-4-(3-hydroxy-1-butenyl)3,5,5-trimethyl-2-cyclohexen-1-one , 4-(p-Hydroxyphenyl) 2-butanone, sodium 4-hydroxyundecanoate, helichrysum, β-ionone, isopentyl acetate, isopentyl butyrate, isopentyl phenylacetate Ester, isobutyl acetate, isobutyl phenylacetate, jasmine extract, kola nut extract, rock rose oil, terpene-free lemon oil, licorice extract, linalool, linalyl acetate, lavender root oil , maltitol, maple syrup, menthol, menthone, L-menthyl acetate, p-methoxybenzaldehyde, methyl-2-pyrrolidone, methyl anthranilate, methyl phenylacetate, salicyl Methyl acid ester, 4'methylacetophenone, methylcyclopentenone, 3-methylpentanoic acid, mimosa essence, molasses, myristic acid, nerol, nerol, γ-nonanone, Nutmeg oil, delta-caprolactone, octanal, caprylic acid, orange flower oil, mandarin oil, orris root oil, palmitic acid, omega-pentadecanolactone, peppermint oil, orange leaf oil, phenylethyl alcohol, benzene Phenyl acetate, phenylacetic acid, piperidinol, plum extract, allyl ethyl guaiacol, propyl acetate, 3-propylidene phthalide, prune juice, pyruvic acid, raisin extract, rose oil, Rum, sage oil, sandalwood oil, spearmint oil, styrax extract, calendula oil, tetrahydrothiophene, alpha-terpineol, terpinel acetate, 5,6,7,8-tetrahydrofuran Hydroquinoxaline, 1,5,5,9-tetramethyl-13-oxaheterocycle (8-dimethyl3-0-(4-9))tridecane, 2,3,5,6- Tetramethylpyrazine, thyme oil, tomato extract, 2-tridecanone, triethyl citrate, 4-(2,6,6-trimethyl-1-cyclohexenyl)2-butene -4-one, 2,6,6-trimethyl-2-cyclohexene-1,4-dione, 4-(2,6,6-trimethyl-1,3-cyclohexadienyl )2-Buten-4-one, 2,3,5-trimethylpyrazine, γ-undecylactone, γ-valerolactone, vanilla extract, vanillin, valeraldehyde, violet extract, N -Ethyl-p-menthane-3-carboxamide (WS-3), ethyl-2-(p-menthane-3-carboxamide)acetate (WS-5), and menthol is particularly preferred. Moreover, these fragrances may be used individually by 1 type, and may be used in combination of 2 or more types.

The content of the flavoring material in the tobacco filler 111 is not particularly limited. From the viewpoint of imparting a good flavor, it is usually 10,000 ppm or more, preferably 20,000 ppm or more, and more preferably 25,000 ppm or more. In addition, it is usually 70,000 ppm or less, preferably 50,000 ppm or less. More preferably, it is 40,000 ppm or less, and still more preferably, it is 33,000 ppm or less.

[roll paper]

The rolling paper 112 is a paper material used to wrap the tobacco filler 111, and its structure is not particularly limited, and general materials can be used. For example, as the base paper used for the roll paper 112, cellulose fiber paper can be used, and more specifically, hemp, wood, or a mixture thereof can be used. The basis weight of the base paper in the roll paper 112 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, and more preferably 45 gsm or less. The thickness of the roll paper 112 having the above characteristics is not particularly limited. From the viewpoint of rigidity, air permeability, and ease of adjustment during paper production, it is usually 10 μm or more, preferably 20 μm or more, more preferably 30 μm or more, and usually 10 μm or more. 100 μm or less, preferably 75 μm or less, more preferably 50 μm or less.

The shape of the wrapping paper 112 of the tobacco rod part 110 (tobacco filler 111) is square or rectangular. When used as the wrapping paper 112 for wrapping the tobacco filler 111 (for making the tobacco rod part 11), the length of one side can be about 12 mm to 70 mm, and the length of the other side can be 15 mm to 15 mm. 28 mm, a preferable length of the other side is about 22 mm to 24 mm, and a more preferable length is about 23 mm.

In addition to the above-mentioned pulp, the roll paper 112 may also contain fillers. The filler content may be 10% by weight or more and less than 60% by weight, preferably 15% by weight or more and 45% by weight or less based on the total weight of the rolling paper 112 . In the rolling paper 112, in the preferred basis weight range (25 gsm or more and 45 gsm or less), the filler is preferably 15 wt% or more and 45 wt% or less. Furthermore, when the basis weight is 25 gsm or more and 35 gsm or less, the filler is preferably 15 wt% or more and 45 wt% or less. When the basis weight is more than 35 gsm and 45 gsm or less, the filler is preferably 25 wt% or more and 45 wt% or less. As the filler, calcium carbonate, titanium dioxide, kaolin, etc. can be used, but calcium carbonate is preferably used from the viewpoint of improving fragrance or whiteness.

Various additives other than base paper or fillers may be added to the roll paper 112. For example, in order to improve water resistance, a water resistance improving agent may be added. Water resistance improving agents include wet paper strength enhancers (WS agents) and sizing agents. Examples of wet paper strength enhancers include urea formaldehyde resin, melamine formaldehyde resin, polyamide epichlorohydrin (PAE), and the like. Examples of sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), highly saponified polyvinyl alcohol with a saponification degree of 90% or more, and the like. As an auxiliary agent, a paper strength enhancer can be added, and examples thereof include polyacrylamide, cationic starch, oxidized starch, CMC, polyamide epichlorohydrin resin, polyvinyl alcohol, and the like. In particular, it is known that oxidized starch can improve air permeability by using a very small amount (for example, Japanese Patent Application Laid-Open No. 2017-218699). In addition, the roll paper 112 may be coated as appropriate.

A coating agent may be added to at least one of the front and back surfaces of the roll paper 112 . The coating agent is not particularly limited, but a coating agent that can form a film on the surface of paper and reduce liquid permeability is preferred. For example, alginic acid and its salts (such as sodium salt), polysaccharides such as pectin, cellulose derivatives such as ethylcellulose, methylcellulose, carboxymethylcellulose, and nitrocellulose, starch, and their Derivatives (for example, ether derivatives such as carboxymethyl starch, hydroxyalkyl starch, and cationic starch, ester derivatives such as starch acetate, starch phosphate, and starch octenyl succinate).

In the tobacco rod part 110 configured as described above, the tobacco filler 111 is wrapped with the wrapping paper 112 in a state where the shredded tobacco is randomly oriented. The randomly oriented cut tobacco means that the cut tobacco is wrapped in the rolling paper 112 without being oriented in a specific direction. In addition, the axial length of the tobacco rod portion 110 can be appropriately changed according to the size of the product, but it is usually 10 mm or more, preferably 12 mm or more, more preferably 15 mm or more, further preferably 18 mm or more, and usually 70 mm or less, preferably 70 mm or less. 50 mm or less, more preferably 30 mm or less, still more preferably 25 mm or less.

<Nozzle>

The structure of the tobacco rod 100 is not particularly limited, and a general method can be adopted. In the manner shown in FIG. 1 , the suction nozzle part 120 includes two sections (sections), namely a cooling section 121 and a filtering section 122 . The cooling segment 121 is disposed sandwiched between the tobacco rod portion 110 and the filter segment 122 in a state of contact with them. In other ways, gaps may be formed between the tobacco rod 110 and the cooling segment 121 and between the tobacco rod 110 and the filtering segment 122 . In addition, the nozzle part 120 may also be formed from a single segment.

[Cooling section]

The structure of the cooling segment 121 is not particularly limited as long as it has the function of cooling the mainstream smoke of the cigarette. An example of the structure is a structure in which thick paper is processed into a cylindrical shape. In this case, the inside of the cylindrical shape is a cavity, and the vapor containing the aerosol-generating base material and the tobacco flavor component contacts the air in the cavity and is cooled.

The cooling section 121 is provided with a vent hole 103 which is an opening for taking in air from the outside. The number of ventilation holes 103 in the cooling section 121 is not particularly limited. In this embodiment, the plurality of ventilation holes 103 are arranged at certain intervals in the circumferential direction of the cooling segment 121 . In addition, the groups of ventilation holes 103 arranged in the circumferential direction of the cooling segment 121 may also be formed in multiple stages along the axial direction of the cooling segment 121 . By providing the ventilation hole 103 in the cooling section 121, when the tobacco rod 100 is smoked, low-temperature air flows into the cooling section 121 from the outside, thereby reducing the temperature of volatile components and air flowing in from the tobacco rod portion 110. In addition, the vapor containing the aerosol-generating base material and tobacco flavor components is condensed by cooling with low-temperature air introduced into the cooling section 121 through the vent hole 103 . Thereby, the generation of aerosol is promoted, and the size of aerosol particles can be controlled.

When the cooling segment 121 is filled with a sheet or the like for cooling volatile components or air flowing from the tobacco rod portion 110 to the cooling segment 121, the total surface area of the cooling segment 121 is not particularly limited, and examples thereof include 300mm ² /mm or more, 1000mm ² /mm or less. This surface area is the surface area per length (mm) of the cooling segment 121 in the ventilation direction. The total surface area of the cooling segments 121 is preferably 400 mm ² /mm or more, more preferably 450 mm ² /mm or more, on the other hand, it is preferably 600 mm ² /mm or less, more preferably 550 mm ² /mm or less.

Preferably, the internal construction of the cooling segment 121 has a large total surface area. Therefore, in a preferred embodiment, it is also possible that the cooling segment 121 is formed from a sheet of thin material that is corrugated to form the channels and then pleated, pleated and folded. If there are many folds or folds within a given volume of the element, the total surface area of the cooling section 121 increases. The thickness of the constituent material of the cooling segment 121 is not particularly limited, and may be, for example, 5 μm or more and 500 μm or less, or may be 10 μm or more and 250 μm or less.

The ventilation holes 103 in the cooling section 121 are preferably arranged at a position more than 4 mm away from the boundary between the cooling section 121 and the filter section 122 . This not only improves the cooling capacity of the cooling section 121, but also suppresses the retention of components generated by heating in the cooling section 121, thereby increasing the delivery amount of the components. It should be noted that the sheet paper 130 is preferably provided with openings at a position directly above the ventilation holes 103 provided in the cooling section 121 (a position where they overlap vertically). The openings of the cooling section 121 are preferably set so that the air inflow ratio from the openings when smoking with an automatic smoking machine is 17.5 ml/second (when the ratio of air sucked from the suction port end is set to 100% by volume) The volume ratio of the air flowing in from the opening) is 10 to 90 volume %, preferably 50 to 80 volume %, more preferably 55 to 75 volume %. For example, each opening can be selected from the range of 5 to 50. The number of openings V in the hole group and the diameter of the openings V are selected from the range of 0.1 to 0.5mm, and the combination of these selections is achieved. The above-mentioned air inflow ratio can be measured according to the method of ISO9512 using an automatic smoking machine (for example, a single automatic smoking machine manufactured by Borgwaldt Co., Ltd.). The axial length of the cooling segment 121 is not particularly limited, but is usually 10 mm or more, preferably 15 mm or more, and is usually 40 mm or less, preferably 35 mm or less, and more preferably 30 mm or less. The axial length of the cooling segment 121 is particularly preferably 20 mm. By setting the axial length of the cooling segment 121 to be equal to or greater than the above-mentioned lower limit, a sufficient cooling effect can be ensured and a good flavor can be obtained. In addition, by setting the axial length of the cooling segment 121 to be equal to or less than the upper limit, loss caused by vapor and mist generated during use adhering to the inner wall of the cooling segment 121 can be suppressed.

[filter segments]

The structure of the filter segment 122 is not particularly limited as long as it functions as a general filter. For example, a filter segment in which cellulose acetate tows are processed into a cylindrical shape can be used. The single-filament fineness and total fineness of the cellulose acetate tow are not particularly limited. When the filter segment 122 has a circumference of 22 mm, the single-filament fineness is preferably 5 to 20 g/9000m, and the total fineness is preferably 12000-30000g/9000m. The cross-sectional shape of the fibers of the cellulose acetate tow may be a Y cross-section or an R cross-section. When the cellulose acetate tow is filled to form the filter segment 122, in order to increase the filter hardness, 5 to 10% by weight of glycerol triacetate may be added based on the weight of the cellulose acetate tow. In the example shown in FIG. 2 , the filter segment 122 is composed of a single segment, but the filter segment 122 may also be composed of multiple segments. When the filter segment 122 is composed of a plurality of segments, for example, a hollow segment such as a central hole is arranged on the upstream side (tobacco rod part 110 side) and a segment on the downstream side (the mouth end 101 side). A method of arranging an acetate filter in which the cross section of the suction port is filled with cellulose acetate tows. According to this method, unnecessary loss of the generated aerosol can be prevented, and the appearance of the tobacco rod 100 can be improved. In addition, from the viewpoint of changing the feeling of sucking and sucking comfort, an acetate filter may be arranged on the upstream side (tobacco rod portion 110 side) and a hollow center hole or the like may be arranged on the downstream side (sucking mouth end 101 side). segmental approach. In addition, the filter segment 122 may use other alternative filter materials such as a paper filter filled with sheet-like pulp paper instead of the cellulose acetate filter.

General functions of the filter in the filter segment 122 include, for example, adjustment of the amount of air mixed when inhaling mist, reduction of aroma, reduction of nicotine or tar, etc., but it is not necessary to have all of these functions. In addition, in electrically heated tobacco products that produce fewer components and tend to have a lower filling rate of tobacco fillers compared to paper tobacco products, it is also important to suppress the filtering function and prevent the tobacco filler from falling off. One of the functions.

The cross-sectional shape of the filter segment 122 is substantially circular, and the diameter of the circle can be appropriately changed according to the size of the product, but is usually 4.0 mm or more and 9.0 mm or less, preferably 4.5 mm or more and 8.5 mm or less, and more preferably 5.0mm or more, 8.0mm or less. In addition, when the cross section is not circular, assuming that the diameter is a circle having the same area as the area of the cross section, the diameter of the circle is applied. The circumference of the filter segment 122 can be appropriately changed according to the size of the product, but is usually 14.0 mm or more and 27.0 mm or less, preferably 15.0 mm or more and 26.0 mm or less, and more preferably 16.0 mm or more and 25.0 mm or less. The axial length of the filter segment 122 can be appropriately changed according to the size of the product, but is usually 15 mm or more and 35 mm or less, preferably 17.5 mm or more and 32.5 mm or less, and more preferably 20.0 mm or more and 30.0 mm or less. The shape and size of the filter material can be appropriately adjusted so that the shape and size of the filter segment 122 are within the above range.

The ventilation resistance per 120 mm length of the filter segment 122 in the axial 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, and more preferably 90 mmH ₂ O Above, 260mmH ₂ O and below. The above-mentioned ventilation resistance is measured according to the ISO standard (ISO6565) using, for example, a filter ventilation resistance measuring device manufactured by Cerulean Corporation. The ventilation resistance of the filter segment 122 refers to a predetermined flow rate from one end surface (first end surface) to the other end surface (second end surface) in a state where air does not pass through the side surfaces of the filter segment 122 The air pressure difference between the first end face and the second end face when the air flow rate is 17.5cc/min. The unit of ventilation resistance can usually be expressed in mmH ₂ O. It is known that the relationship between the ventilation resistance of the filter segment 122 and the length of the filter segment 122 is proportional within the commonly implemented length range (length 5 mm ~ 200 mm). If the length of the filter segment 122 is 2 times, its ventilation resistance Also 2 times.

In addition, the density of the filter material in the filter segment 122 is not particularly limited, and is usually 0.10g/cm ³ or more and 0.25g/cm ³ or less, preferably 0.11g/cm ³ or more and 0.24g/cm ³ or less, and more Preferably it is 0.12g/ ^cm3 or more and 0.23g/ ^cm3 or less. From the viewpoint of improving strength and structural rigidity, the filter segment 122 may be provided with a wrapping paper (filter rod wrapping paper) in which a filter material or the like is wrapped. The manner in which the paper is rolled is not particularly limited and may include seams containing more than one row of adhesive. The adhesive may include a hot melt adhesive, and the hot melt adhesive may further include polyvinyl alcohol. In addition, when the filter segment 122 is composed of two or more segments, it is preferable that the two or more segments are wound together with the winding paper. The material of the rolled paper in the filter segment 122 is not particularly limited, and known materials can be used. In addition, fillers such as calcium carbonate and the like may also be included.

The thickness of the winding paper is not particularly limited, but is usually from 20 μm to 140 μm, preferably from 30 μm to 130 μm, and more preferably from 30 μm to 120 μm. The basis weight of the wound paper is not particularly limited, but 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. In addition, the rolled paper may or may not be coated, but from the viewpoint of being able to impart functions other than strength and structural rigidity, it is preferably coated with a desired material.

In the case where the filter segment 122 includes a central hole segment and a filter media, the central hole segment and the filter media may be connected, for example, by an outer wrapper (outer wrap). The outer wrapping paper may be, for example, cylindrical paper. Additionally, the tobacco stem 110, the cooling segment 121, the connected central bore segments and the filter media may be connected, for example, by a mouthpiece lining paper. These connections can be made, for example, by applying vinyl acetate-based paste or other paste on the inner surface of the nozzle lining paper, placing the tobacco rod part 110, the cooling segment 121, the connected center hole segment and the filter material, and then Coil to connect. It should be noted that they can also be connected multiple times using multiple backing papers.

The filter media of filter segment 122 may include a breakable additive release container (eg, a capsule) that includes a breakable shell such as gelatin. The form of the capsule (also referred to as "additive release container" in this field) is not particularly limited, and may be in a known manner. For example, it can be a breakable additive release container, and the breakable additive release container may include gelatin or the like. Broken shell. The form of the capsule is not particularly limited. For example, it may be an easily destructible capsule, and its shape is preferably a ball. As additives contained in the capsule, any of the above-mentioned additives may be contained, and it is particularly preferable to contain a flavoring agent or activated carbon. In addition, as an additive, one or more materials that contribute to filtering smoke may be added. The form of the additive is not particularly limited, but is usually liquid or solid. It should be noted that the use of capsules containing additives is well known in the art. Breakable capsules and methods of making them are well known in the art.

Examples of the flavoring agent include menthol, spearmint, peppermint, fenugreek, clover, medium-chain fatty acid triglyceride (MCT), and the like. The flavoring agent may be menthol, or may be menthol or the like, or a combination thereof may be used.

Flavors may be added to the filter media of filter segment 122 . By adding flavor to the filter material, the delivery amount of the flavor during use is increased compared to the prior art in which flavor is added to the tobacco filler constituting the tobacco rod portion 110 . The degree of increase in the delivery amount of fragrance is further increased depending on the position of the openings provided in the cooling section 121 . There is no particular limitation on the method of adding the fragrance to the filter material, as long as the fragrance is added so as to be substantially uniformly dispersed in the filter material to which the fragrance is added. An example of the added amount of the fragrance is to add it to 10 to 100% by volume of the filter material. As the adding method, the filter material may be added in advance before the filter segment is formed, or may be added after the filter segment is formed. The type of flavor is not particularly limited, and the same flavor as contained in the tobacco filler 111 may be used.

The filter segment 122 includes a filter media to which at least a portion of the filter media may also have activated carbon added. In a tobacco rod, the amount of activated carbon added to the filter material is the value of the specific surface area of the activated carbon × the weight of the activated carbon / the cross-sectional area of the filter material in the direction perpendicular to the ventilation direction, which can be 15.0m ² /cm ² Above, 80.0m ² /cm ² or less. For convenience, the above "specific surface area of activated carbon × weight of activated carbon/cross-sectional area of the filter material in the direction perpendicular to the ventilation direction" is sometimes expressed as "surface area of activated carbon per unit cross-sectional area." The surface area of activated carbon per unit cross-sectional area can be calculated based on the specific surface area of activated carbon added to the filter material of one tobacco rod, the weight of the added activated carbon, and the cross-sectional area of the filter material. Note that activated carbon may not be uniformly dispersed in the filter material to which activated carbon is added, and the above range is not required to be satisfied in all cross-sections of the filter material (cross-sections in the direction perpendicular to the ventilation direction).

The surface area of activated carbon per unit cross-sectional area is more preferably 17.0 m ² /cm ² or more, and further preferably 35.0 m ² /cm ² or more. On the other hand, it is more preferably 77.0 m ² /cm ² or less, and even more preferably 73.0 m ² /cm ² or less. The surface area of activated carbon per unit cross-sectional area can be adjusted, for example, by adjusting the specific surface area of activated carbon, its added amount, and the cross-sectional area of the filter material in the direction perpendicular to the ventilation direction. The above calculation of the surface area of activated carbon per unit cross-sectional area is calculated based on the filter material with added activated carbon. When the filter segment 122 is composed of a plurality of filter media, only the cross-sectional area and length of the filter media to which activated carbon is added are used as the basis.

Examples of activated carbon include activated carbon made of wood, bamboo, coconut shells, walnut shells, coal, etc. as raw materials. In addition, as the activated carbon, one with a BET specific surface area of 1100 m ² /g or more and 1600 m ² /g or less can be used, and one with a BET specific surface area of 1200 m ² /g or more and 1500 m ² /g or less can be preferably used, and 1250 m ² /g can be further preferably used. Activated carbon above and below 1380m ² /g. The BET specific surface area can be determined by the nitrogen adsorption method (BET multi-point method). In addition, as the activated carbon, one with a pore volume of 400 μL/g or more and 800 μL/g or less can be used, more preferably 500 μL/g or more and 750 μL/g or less can be used, and still more preferably 600 μL/g or more and 700 μL/g can be used. Activated carbon below /g. The pore volume can be calculated from the maximum adsorption amount obtained using the nitrogen adsorption method. The amount of activated carbon added per unit length of the filter medium in the ventilation direction is preferably 5 mg/cm or more and 50 mg/cm or less, more preferably 8 mg/cm or more and 40 mg/cm or less, and still more preferably 10 mg/cm. Above, below 35mg/cm. By setting the specific surface area of activated carbon and the amount of activated carbon added to the above ranges, the surface area of activated carbon per unit cross-sectional area can be adjusted to a desired value.

In addition, as the activated carbon, it is preferable that the cumulative 10 volume % particle size (particle size D10) of the activated carbon particles is 250 μm or more and 1200 μm or less. In addition, it is preferable that the cumulative 50 volume % particle size (particle size D50) of the activated carbon particles is 350 μm or more and 1500 μm or less. In addition, particle diameter D10 and D50 can be measured by the laser diffraction scattering method. An example of an apparatus suitable for this measurement is the laser diffraction/scattering particle size distribution measuring apparatus "LA-950" produced by Horiba Manufacturing Co., Ltd. Powder flows into the device's unit along with pure water, and the particle size is detected based on the light scattering information of the particles.

The measurement conditions based on the above measurement device are as follows.

Measurement mode: manual flow mode unit measurement

Dispersion medium: ion exchange water

Dispersion method: Measured after 1 minute of ultrasonic irradiation

Refractive index: 1.92-0.00i (refractive index of sample)/1.33-0.00i (refractive index of dispersion medium)

Number of measurements: Change the sample and measure 2 times

In addition, the method of adding activated carbon to the filter medium of the filter segment 122 is not particularly limited, as long as the activated carbon is added so as to be substantially uniformly dispersed in the filter medium to which the activated carbon is added.

In addition, in the tobacco rod 100 configured as above, a part of the outer surface of the sheet paper 130 may be covered with a lip release material. The lip release material refers to a material configured so that when the user bites the mouthpiece 120 of the tobacco rod 100, the contact between the auxiliary lip and the sheet paper 130 is easily separated without substantially adhesion. Lip release materials may include, for example, ethyl cellulose, methyl cellulose, and the like. For example, the outer surface of the sheet paper 130 may be coated with an ethyl cellulose-based or methyl cellulose-based ink, and the outer surface of the sheet paper 130 may be coated with a lip release material.

In this embodiment, the lip release material of the sheet paper 130 is arranged at least in a predetermined mouth area that comes into contact with the user's lips when the user bites the mouth part 120 . More specifically, the lip release material arrangement area R1 (refer to FIG. 1 ) covered by the lip release material in the outer surface of the sheet paper 130 is defined to be located from the suction end 101 of the suction nozzle part 120 to the ventilation hole 103 the area between.

In addition, the ventilation resistance in the long axis direction of each tobacco rod 100 configured as above is not particularly limited, but from the viewpoint of easy smoking, it is usually 8 mmH ₂ O or more, preferably 10 mmH ₂ O or more, and more preferably 10 mmH 2 O or more. 12 mmH ₂ O or more, and usually 100 mmH ₂ O or less, preferably 80 mmH ₂ O or less, and more preferably 60 mmH ₂ O or less. The ventilation resistance is measured according to the ISO standard (ISO6565:2015) using, for example, a filter ventilation resistance measuring device manufactured by Cerulean Corporation. The ventilation resistance refers to a predetermined air flow rate (17.5cc/ min) of air, the air pressure difference between the first end face and the second end face. The unit is usually expressed in mmH ₂ O. It is known that the relationship between ventilation resistance and tobacco rod 100 is proportional within the commonly implemented length range (length 5 mm to 200 mm). If the length of tobacco rod 100 is twice as long, its ventilation resistance is also twice as long.

The rod-shaped tobacco rod 100 preferably has a columnar shape with an aspect ratio of 1 or more that satisfies the following definition.

Aspect ratio=h/w

w is the width of the front end 102 of the tobacco rod 100, h is the axial length, preferably h≥w. The cross-sectional shape of the tobacco rod 100 is not particularly limited, and may be a polygon, a rounded polygon, a circle, an ellipse, or the like. The width w of the tobacco rod 100 is the diameter when the cross-sectional shape of the tobacco rod 100 is a circle, the major diameter when the cross-sectional shape of the tobacco rod 100 is an ellipse, and the diameter of the circumscribed circle when the tobacco rod 100 is a polygon or a rounded polygon. The major diameter of the circumscribed ellipse. The axial length h of the tobacco rod 100 is not particularly limited. For example, it is usually 40 mm or more, preferably 45 mm or more, and more preferably 50 mm or more. In addition, it is usually 100 mm or less, preferably 90 mm or less, and more preferably 80 mm or less. The width w of the front end 102 of the tobacco rod 100 is not particularly limited. For example, it is usually 5 mm or more, preferably 5.5 mm or more. In addition, it is usually 10 mm or less, preferably 9 mm or less, and more preferably 8 mm or less. The ratio of the lengths of the cooling section 121 and the filtering section 122 (cooling section:filtering section) in the length of the tobacco rod 100 is not particularly limited, but from the viewpoint of the delivery amount of the flavoring and the appropriate aerosol temperature, Usually 0.60~1.40:0.60~1.40, preferably 0.80~1.20:0.80~1.20, more preferably 0.85~1.15:0.85~1.15, further preferably 0.90~1.10:0.90~1.10, particularly preferably 0.95~1.05:0.95 ~1.05. By setting the ratio of the lengths of the cooling segment 121 and the filter segment 122 within the above range, it is possible to obtain a cooling effect, an effect of suppressing loss caused by adhesion of generated steam and mist to the inner wall of the cooling segment 121, and a filter. The balance of air volume and fragrance adjustment function can achieve good fragrance and fragrance intensity.

<Electric heating device>

Next, the electric heating device 1 used with the tobacco rod 100 is explained. The electric heating device 1 is a smoking device for smoking the tobacco rod 100, and is combined with the tobacco rod 100 to form a non-combustion heating tobacco product. FIG. 3 is an external perspective view of the electric heating device 1 according to the embodiment. The electric heating device 1 is provided with an operation button (not shown) that can be switched between operation and non-operation, for example, by a user's operation. When in operation, the electric heating device 1 heats the tobacco filler 111 of the tobacco rod 100 without burning it, thereby removing the tobacco from the tobacco. The filler 111 releases fragrance components.

The electric heating device 1 has a housing 11 for accommodating and protecting various internal components in the device 1 . Reference numeral 12 shown in FIG. 3 is an upper surface panel part of the housing 11 , reference numeral 13 is a bottom panel part of the housing 11 , and reference numeral 14 is a side panel part of the housing 11 . However, in this specification, references to the up, down, left, and right directions of the electric heating device 1 only refer to the relative positional relationship of each element constituting the electric heating device 1 . In addition, the material forming the housing 11 is not particularly limited, and may be made of a plastic material (for example, glass-filled nylon formed by injection molding) or a metal material such as aluminum. In addition, the shape, size, etc. of the housing 11 of the electric heating device 1 are not particularly limited.

A sliding opening and closing cover 15 is attached to the upper surface panel 12 of the electric heating device 1 . The opening and closing cover 15 can open and close the insertion port (indicated by reference numeral 5A in FIGS. 4 and 6 etc.) opened in the upper surface panel part 12 by sliding operation by the user. The insertion port of the electric heating device 1 is formed as a circular opening, and is configured so that the tobacco rod 100 can be freely inserted and removed. In addition, the housing 11 is provided with an indicator 17 such as an LED that provides the user with the operating status of the electric heating device 1 .

Next, the internal structure inside the housing 11 accommodated in the electric heating device 1 will be described. FIG. 4 is a diagram explaining the internal structure of the electric heating device 1 according to the embodiment. In FIG. 4 , illustration of some components housed in the housing 11 is omitted. As shown in FIG. 4 , the heater unit 20 , the control unit 30 , the power supply 40 and the like are accommodated in the casing 11 . The position of each component housed in the housing 11, the range it occupies in the housing, etc. are not particularly limited and can be changed appropriately.

The heater unit 20 is a unit having an electrically heated hollow tube heater 21 for heating the tobacco rod portion 110 in the tobacco rod 100 during operation. The power supply 40 is a power supply for supplying operating power to the hollow tube heater 21, the indicator 17, etc., and is electrically connected to them via electrical wiring. The power supply 40 may include, for example, a lithium-ion battery, a nickel battery, an alkaline battery, or the like. The control unit 30 is a computer including a CPU, a memory, and the like, and controls the overall operating state of the electric heating device 1 . The control unit 30 may be a microcontroller in which a CPU, a memory, an input/output circuit, a timer circuit, etc. are mounted on an IC chip, for example. When the electric heating device 1 is operating, the control unit 30 supplies electric power to the hollow tube heater 21 from the power supply 40, and performs heating control to heat the tobacco rod portion 110 of the tobacco rod 100 through the hollow tube heater 21.

The heater unit 20 includes, in addition to the hollow tube heater 21 defined in the form of a hollow tube in which a heating chamber into which the tobacco rod 100 can be inserted is formed. Thermal insulator 22 and the like in at least a part of the section. The thermal insulator 22 helps to reduce the heat generated by the operation of the hollow tube heater 21 from being transferred to the outside of the electrically heated device 1 .

FIG. 5 is a perspective view of the hollow tube heater 21 according to the embodiment. FIG. 6 is a schematic longitudinal cross-sectional view of the hollow tube heater 21 according to the embodiment. FIG. 7 is an exploded view of the hollow tube heater 21 of the embodiment. As shown in FIGS. 5 to 7 , the hollow tube heater 21 in the heater unit 20 includes an insertion cylinder 5 , a chamber tube 6 , a plug member 7 , and the like. Reference symbol CL shown in FIG. 6 is the central axis of the hollow tube heater 21. Hereinafter, the cross section along the direction of the central axis CL of the hollow tube heater 21 will be referred to as a "longitudinal cross section", and the cross section in the direction orthogonal to the central axis CL will be referred to as a "cross section".

The insertion tube portion 5 of the hollow tube heater 21 is a sleeve member having a hollow cylindrical shape, and an opening end formed at the upper end thereof is formed as an insertion port 5A. The insertion port 5A is an opening for inserting the tobacco rod 100 into the hollow tube heater 21 (inside the heating chamber) so that the tobacco rod 100 can be removed and removably inserted.

FIG. 8 is a perspective view of the chamber tube 6 according to the embodiment. The chamber tube 6 is a bottomed hollow cylindrical member with an upper end 6A formed as an open end, and a hollow heating chamber 60 is formed inside. FIG. 9 is a view of the heating chamber 60 of the hollow tube heater 21 according to the embodiment as viewed from the insertion port 5A side.

The upper end 6A of the chamber tube 6 is connected to the lower end 5B of the insertion tube 5 , whereby the insertion tube 5 and the chamber tube 6 are integrated. In addition, a bottom wall 64 is formed at the lower end of the chamber tube 6 , and an opening 64A is formed in the center of the plane of the bottom wall 64 .

The chamber tube 6 includes a connecting tube portion 61 located on the upper end 6A side, a narrow tube portion 62 located below the connecting tube portion 61 , and a compression tube portion 63 located below the narrow tube portion 62 . The upper end 6A of the connecting tube 61 is provided with an annular flange extending radially outward of the connecting tube 61 , and the annular flange is coupled to the end surface of the lower end 5B of the insertion tube 5 . In addition, the connecting tube 61 of the chamber tube 6 has a substantially hollow cylindrical shape, and its inner diameter is, for example, equal to the inner diameter of the lower end 5B of the insertion tube 5 .

As shown in FIG. 8 and others, the compression cylinder portion 63 in the chamber tube 6 is formed into a hollow cylinder having a substantially oblong (elliptical) cross section. In addition, the upper end of the narrow cylindrical portion 62 in the chamber tube 6 connected to the connecting cylindrical portion 61 has a hollow cylindrical shape, and the lower end connected to the compression cylindrical portion 63 has a substantially oblong (elliptical) cylindrical shape. As described above, the cross-sectional shape of the narrow cylindrical portion 62 in the chamber tube 6 in this embodiment is gradually changed along the axial direction of the narrow cylindrical portion 62 . More specifically, the narrow cylindrical portion 62 of the chamber tube 6 has a pair of narrow wall portions 62A that gradually become narrower toward the lower end side of the narrow cylindrical portion 62 at positions facing each other across the central axis of the chamber tube 6 . , 62A, the cross-sectional shape of the narrow tube portion 62 is continuously changed along the axial direction by the pair of narrow wall portions 62A, 62A.

Next, the plug member 7 in the hollow tube heater 21 will be described. As shown in FIGS. 5 and 6 , the plug member 7 is attached to the bottom wall 64 of the chamber tube 6 (compression tube portion 63 ). FIG. 10 is a perspective view of the plug member 7 of the embodiment. The plug member 7 is composed of: a main body portion 71 that is positioned on the heating chamber 60 side along the inner surface of the bottom wall 64 when mounted on the bottom wall 64 of the chamber tube 6 (compression cylinder portion 63); and a protruding portion. part 72; which protrudes from the lower surface 71A side of the main body part 71; and a set of pedestal parts 73 which protrudes upward from the upper surface 71B side of the main body part 71. The main body part 71 has a size that can be mounted inside the compression tube part 63 . The protruding portion 72 of the plug member 7 has a stepped cylindrical shape. The base end portion 721 has a diameter slightly smaller than the opening 64A of the bottom wall 64 and is configured to be inserted through the opening 64A. When the plug member 7 is attached to the bottom wall 64 of the compression tube 63 , the protruding portion 72 protrudes to the outside of the heating chamber 60 through the opening 64A of the bottom wall 64 .

A set of base portions 73 in the plug member 7 are arranged at intervals in the cross-sectional direction of the heating chamber 60, with a gap SP1 formed therebetween. The upper surface of each pedestal portion 73 is formed as a positioning bottom surface 731. When the tobacco rod 100 is inserted into the hollow tube heater 21 (inside the heating chamber 60) from the insertion port 5A, the positioning bottom surface 731 is used to hold the tobacco rod 100 through the positioning bottom surface 731. The front end 102 of the part 110 is in contact for positioning. The positioning bottom surface 731 of each base portion 73 is flat and positioned at the same height in the heating chamber 60 . The tobacco rod 100 inserted into the heating chamber 60 has a specification such that it is inserted into a predetermined position at the moment when the front end 102 of the tobacco rod portion 110 comes into contact with the positioning bottom surface 731 of each base portion 73 . That is, in the hollow tube heater 21 , the position (predetermined position) of the positioning bottom surface 731 of each base portion 73 corresponds to the innermost position of the heating chamber 60 . With the tobacco rod 100 inserted into the innermost position of the heating chamber 60 , the front end 102 of the tobacco rod portion 110 is placed so as to straddle the upper portion of the gap SP1 formed between the set of base portions 73 . When the electric heating device 1 is used to smoke the tobacco rod 10, the air flowing from the insertion opening 5A into the heating chamber 60 of the hollow tube heater 21 passes between the inner wall surface of the hollow tube heater 21 and the tobacco rod 10 The gap is introduced to the bottom side of the heating chamber 60, and then introduced from the front end 102 of the tobacco rod part 110 to the inside of the tobacco rod part 110 through the gap SP1.

As shown in FIG. 6 , in the chamber tube 6 of this embodiment, a heating region RH is formed in at least a part of the compression tube 63 . The heating area RH of the compression cylinder 63 is a heat generating area for heating the tobacco rod 110 inserted into the tobacco rod 100 in the heating chamber 60 at least from the outer circumferential side, and is provided with a heater element 23 that generates heat by energization. It should be noted that in drawings other than FIG. 6 , the heater element 23 is appropriately omitted from illustration. The heater element 23 provided in the heating area RH is an element that generates heat by supplying operating power from the power supply 40, and is not particularly limited. The heating area RH of the compression cylinder 63 is, for example, a metal pipe such as stainless steel, and a metal film heater may be disposed along the outer peripheral surface of the metal pipe. Metal film heaters are planar heating heaters that use a metal film as a heating element and are flexible. In addition, in the heating region RH of the compression cylinder portion 63 , a film heater may be arranged along the outer peripheral surface of the metal pipe instead of the metal thin film heater. The film heater may have, for example, a structure in which a layer made of an electrically insulating material and a layer made of a heating rail which is an example of a heating element are overlapped. In addition, for example, the heater element 23 may have a structure in which a layer composed of a heating rail is disposed between two layers composed of an electrically insulating material. The electrically insulating material may be polyimide, for example, and the heating track may be metal, such as stainless steel. In addition, the heating region RH of the compression cylinder 63 may contain a ceramic material. Examples of the ceramic material include alumina, aluminum nitride, silicon nitride ceramics, and the like, or they may be laminated and sintered.

When the control unit 30 of the electric heating device 1 performs heating control of the hollow tube heater 21, the heater element provided in the heating wall portion RH of the hollow tube heater 21 is energized by the power supply from the power supply 40. The heating wall portion RH generates heat, and as a result, the tobacco rod portion 110 of the tobacco rod 100 inserted into the heating chamber 60 can be heated from the outer peripheral side.

In the present embodiment, the heater element 23 is disposed over substantially the entire section in the axial direction of the compression tube portion 63 in the hollow tube heater 21, so that the heating wall portion RH is formed throughout the section. In the example shown in FIG. 6 , the heater element is provided so as to cover the outer peripheral surface of the compression cylinder 63 from the upper end in the axial direction of the compression cylinder 63 to a position corresponding to the height of the positioning bottom surface 731 of the base 73 . 23, thereby forming the heating wall portion RH in this area. However, the installation manner of the heater element 23 provided in the compression cylinder portion 63 is not particularly limited. That is, the heating wall portion RH may be formed over the entire length of the compression tube portion 63 , or may be formed only in a shorter portion than the range shown in FIG. 6 . In addition, the heater element 23 in the compression cylinder 63 does not need to be provided on the outer peripheral side of the compression cylinder 63 . For example, the heater element 23 may be embedded inside the wall of the compression cylinder 63 or may be disposed on the inner peripheral side.

Here, FIG. 11 is a diagram showing a cross section (A-A cross section) of the hollow tube heater 21 shown in FIG. 6 at the position A-A. FIG. 12 is a diagram showing a cross section at the B-B position (B-B cross section) of the hollow tube heater 21 shown in FIG. 6 . The A-A cross-section of the hollow tube heater 21 corresponds to the cross-section of the insertion cylinder 5 and the B-B cross-section corresponds to the cross-section of the compression cylinder 63 in the chamber tube 6 .

The compression tube portion 63 in the hollow tube heater 21 is configured to compress the tobacco rod portion 110 from at least the outer peripheral side when the tobacco rod 100 is inserted into the heating chamber 60 . In the following, when only the diameter of the tobacco rod 100 (the tobacco rod part 110 and the nozzle part 120) is mentioned, it refers to the diameter of the original shape (before being compressed by the compressed cylinder part 63). When it is intended to refer to the compressed cylinder part 63 In the case of the diameter of the compressed tobacco rod 100 (tobacco rod portion 110, mouthpiece portion 120), this content is clearly stated.

The cross-sectional area of the inner cavity of the insertion tube portion 5 of the hollow tube heater 21 is relatively large compared with the cross-sectional area of the tobacco rod 100 (tobacco rod portion 110, mouthpiece portion 120). More specifically, the inner diameter of the insertion tube 5 is relatively larger than the diameter of the tobacco rod 100 (the tobacco rod 110 and the mouthpiece 120). Reference numeral L1 shown in the cross section along A-A of FIG. 6 represents the cross-sectional outer shape (contour) of the tobacco rod 100 in a state of being inserted into the insertion tube portion 5 of the hollow tube heater 21. As shown in the figure, a gap is formed between the inner wall surface 50 inserted into the barrel 5 and the contour L1 of the tobacco rod 100 . With such a structure, when the user inserts the tobacco rod 100 from the insertion opening 5A, the tobacco rod 100 can be smoothly inserted into the heating chamber 60 . In addition, when the tobacco rod 100 is inserted into the heating chamber 60, the gap between the inner wall surface 50 of the insertion tube 5 and the tobacco rod 100 can be formed as an air flow path.

On the other hand, the compression cylinder portion 63 of the hollow tube heater 21 has a substantially oblong (elliptical) cylinder shape as described above. Therefore, as shown in the B-B hollow cross-sectional view of FIG. 6 , the hollow cross-section in the compression tube 63 is formed into a substantially elliptical shape (elliptical shape). The compression cylinder 63 is composed of a pair of opposing clamping wall portions 631 and 631 extending along the axial direction of the compression cylinder 63 and a pair of arcuate walls connecting the ends of the clamping wall portions 631 and 631 to each other. Parts 632 and 632 are formed. Here, the inner wall surfaces 631A and 631A of the pair of clamping wall portions 631 and 631 extend along the axial direction of the compression tube portion 63 and are arranged to face each other in parallel. It should be noted that the inner wall surfaces 632A and 632A of the pair of arc wall portions 632 and 632 also extend in the axial direction of the compression tube portion 63 and are arranged to face each other in parallel.

The distance between the inner wall surfaces 631A and 631A in the pair of clamping wall portions 631 and 631 is called "the distance between the clamping wall surfaces D1". The distance D1 between the clamping wall surfaces is set to be smaller than the diameter of the tobacco rod 100 (the tobacco rod portion 110 and the nozzle portion 120). In the internal cross-sectional view along line B-B in FIG. 6 , reference numeral L2 indicates the outer shape (contour) of the original shape of the tobacco rod 100 in the cross-sectional direction. In the present embodiment, the cross-sectional area of the tobacco rod 100 (tobacco shaft part 110, mouthpiece part 120) is relatively larger than the internal cross-sectional area of the compression tube part 63, and the tobacco inserted into the compression tube part 63 The rod 100 (the tobacco rod part 110 and the nozzle part 120) is limited to be compressed by the inner wall surface of the compression tube part 63. More specifically, the distance D1 between the clamping wall surfaces of the pair of opposing clamping wall portions 631 and 631 in the compression tube portion 63 is set smaller than the diameter of the tobacco rod 100 (the tobacco rod portion 110 and the nozzle portion 120). size of. Therefore, when the tobacco rod 100 is inserted into the compression cylinder portion 63 of the hollow tube heater 21, the tobacco rod 100 is clamped by the inner wall surfaces 631A, 631A of the pair of clamping wall portions 631, 631 and receives pressure from the outer peripheral side. compression. It should be noted that in this embodiment, the following specifications are used: when the tobacco rod 100 is inserted into the compression cylinder portion 63 of the hollow tube heater 21, the inner wall surfaces 632A, 632A of the pair of arc wall portions 632, 632 A gap is formed between the inner wall surfaces 632A and 632A and the peripheral surface of the tobacco rod 100 . However, the inner wall surfaces 632A and 632A may be in contact with the peripheral surface of the tobacco rod 100 .

The distance D1 between the clamping walls of the compression cylinder 63 is substantially equal to the minor axis dimension of the inner hollow cross section of the compression cylinder 63 having a substantially oblong (elliptical) shape. In addition, the major axis dimension of the inner hollow cross-section in the compression cylinder portion 63 is not particularly limited. As an example, in this embodiment, the major axis dimension of the inner hollow cross section in the compression tube portion 63 is equal to the diameter of the tobacco rod 100 (the tobacco rod portion 110 and the nozzle portion 120). However, the major axis dimension of the inner hollow cross-section in the compression tube portion 63 may be set to be smaller than the diameter of the tobacco rod 100 (the tobacco rod portion 110, the nozzle portion 120), or may be set to be smaller than the diameter of the tobacco rod 100 (the tobacco rod portion 110, the nozzle portion 120). Rod 100 diameter large size.

FIG. 14 is a diagram illustrating a state in which the tobacco rod 100 is inserted into a predetermined position in the heating chamber 60 of the electric heating device 1 according to the embodiment. As shown in FIG. 14 , the tobacco rod 100 inserted into the heating chamber 60 at a predetermined position is positioned between the front end 102 of the tobacco rod portion 110 and the positioning bottom surface 731 of the base portion 73 of the hollow tube heater 21 , that is, the heating chamber 60 are positioned with their bottom surfaces in contact. In addition, as shown in FIG. 14 , in a state where the tobacco rod 100 is inserted into a predetermined position (positioning bottom surface 731 ) of the heating chamber 60 , the position (height) of the ventilation hole 103 in the nozzle 120 (cooling section 121 ) ) coincides with the position (height) of the insertion port 5A.

In addition, the axial length of the compression tube portion 63 in the hollow tube heater 21 from the upper end to the positioning bottom surface 731 of the base portion 73 is larger than the length dimension of the tobacco rod portion 110 . Therefore, for the tobacco rod 100 inserted into the predetermined position of the heating chamber 60 in the hollow tube heater 21 , the entire tobacco rod portion 110 and a part of the nozzle portion 120 are inserted into the compression tube portion 63 . Thereby, the entire tobacco rod part 110 and a part of the nozzle part 120 are sandwiched between the inner wall surfaces 631A, 631A of the pair of clamping wall parts 631, 631, thereby being compressed from the outer peripheral side.

Furthermore, when the user performs a predetermined turn-on operation on the operation button of the electric heating device 1, the control unit 30 starts supplying power to the hollow tube heater 21 from the power supply 40, and starts heating the tobacco rod portion 110 in the tobacco rod 100. heating control. When the heating control is started, the heater element 23 provided in the heating wall portion RH of the compression cylinder portion 63 in the hollow tube heater 21 is energized, so that the heating wall portion RH generates heat. Therefore, the tobacco filler 111 contained in the tobacco shaft portion 110 of the tobacco rod 100 is heated without being burned, and vapor containing the aerosol generating base material and the tobacco flavor component can be generated.

In the hollow tube heater 21 of the present embodiment, the entire area in the axial direction of the compression tube portion 63 is formed as the heating wall portion RH. Therefore, when the hollow tube heater 21 is operated, the tobacco rod portion 110 can be heated in a state of being compressed by the compression tube portion 63 (heating wall portion RH). In this way, by compressing and heating the tobacco rod portion 110 from the outer peripheral side, the heat generated by the heating wall portion RH (heater element 23) can be efficiently transferred to the tobacco filler 111 of the tobacco rod portion 110. As a result, the tobacco filler 111 of the tobacco rod portion 110 is effectively heated, thereby increasing the amount of aerosol and flavor components delivered.

Furthermore, the tobacco filler 111 is wrapped with the wrapping paper 112 in the tobacco rod portion 110 of the tobacco rod 100 in a state where the shredded tobacco is randomly oriented. Therefore, the cut tobacco is arranged in a uniformly dispersed state in the cross section of the tobacco rod portion 110, and the gap between the cut tobacco can be reduced. As a result, even if the tobacco rod portion 110 is compressed from the outer circumferential side as the tobacco rod portion 110 is inserted into the compression tube portion 63, the ventilation resistance during smoking can be suppressed from greatly changing. That is, the ventilation resistance during smoking is less likely to vary from tobacco rod 100 to tobacco rod 100 , which can help ensure stable quality of the flavor of the tobacco rod 100 . That is, according to the tobacco rod 100 in this embodiment and the non-combustion heating tobacco product including the tobacco rod 100, it is possible to ensure the delivery amount of the flavor component of the tobacco rod 100 and suppress the variation in ventilation resistance.

In addition, the cross-sectional area of the tobacco rod part 110 in the present embodiment is preferably limited to 60% or more and 99% or less after the cross-sectional area is inserted into the compression tube part 63 in the electric heating device 1 compared with before insertion. , is more preferably limited to 80% or more and 98 or less. In addition, the diameter of the tobacco rod part 110 is preferably limited to a size that is 105% or more and 200% or less with respect to the distance between the inner wall surfaces 631A, 631A of the pair of clamping wall parts 631, 631, and is more preferably limited to 109%. 140% above size below. Therefore, when the hollow tube heater 21 in the electric heating device 1 is operating, the heat generated by the heating wall portion RH (heater element 23) can be transmitted to the tobacco filler 111 of the tobacco rod portion 110 more efficiently, and more efficiently. Efficiently heat tobacco filler 111. In addition, when the cross-sectional area of the tobacco rod portion 110 after being inserted into the compression cylinder portion 63 of the electric heating device 1 is less than 60% based on the reference before insertion, the tobacco rod portion 110 is inserted into the compression cylinder portion 63. 110 may be over-compressed. As a result, the rolling paper 112 may be damaged when inserted into the compression tube part 63, or the ventilation resistance of the tobacco rod part 110 may increase excessively, making it difficult to smoke.

It should be noted that when the hollow tube heater 21 is operating, the vapor generated in the tobacco rod part 110 and containing the aerosol generating base material and tobacco flavor components flows from the tobacco rod part 110 into the cooling section of the mouthpiece part 120 121, is cooled by contact with the air taken in from the vent hole 103 into the cavity of the cooling section 121. In this way, the temperatures of components and air flowing in from the tobacco rod portion 110 can be lowered. Furthermore, the vapor of the aerosol-generating substrate is liquefied by being cooled in the cooling section 121, thereby promoting the generation of aerosol. Then, after passing through the filter section 122, the aerosol containing flavor components is sucked into the oral cavity from the suction end 101.

As described above, when the tobacco rod 100 is inserted into the predetermined position of the heating chamber 60, the entire tobacco rod portion 110 and a part of the nozzle portion 120 (cooling segment 121) are compressed by the cylinder portion 63. The inner wall surfaces (the inner wall surfaces 631A and 631A of the pair of clamping wall portions 631 and 631) are compressed. When the hollow tube heater 21 is operating, not only the tobacco rod part 110 of the tobacco rod 100 but also the mouthpiece part 120 (cooling section 121) is heated in a state of being compressed by the inner wall surface of the compression cylinder part 63, thereby It is possible to obtain the effect that steam or mist is less likely to adhere to the inner wall of the nozzle portion 120 (cooling section 121). In addition, the cross-sectional area of the nozzle part 120 is preferably limited to 60% or more and 99% or less of the cross-sectional area after insertion into the compression tube part 63 compared with before insertion, and is more preferably limited to 80% or more and 98% or less. . Thereby, the above-described adhesion-inhibiting effect of vapor or mist can be obtained more significantly. In addition, when the cross-sectional area of the nozzle portion 120 after being inserted into the compression cylinder portion 63 of the electric heating device 1 is less than 60% based on the reference before insertion, the nozzle portion 120 is inserted into the compression cylinder portion 63. 120 is likely to be over-compressed. As a result, the nozzle portion 120 may be damaged when inserted into the compression tube portion 63 . On the contrary, when the cross-sectional area of the nozzle portion 120 after being inserted into the compression tube portion 63 exceeds 99% of that before insertion, the adhesion between the nozzle portion 120 and the hollow tube heater 21 may be reduced, possibly It is difficult to fully obtain the effect that steam or mist hardly adheres to the inner wall of the nozzle 120 .

In addition, when the tobacco rod 100 is inserted into the heating chamber 60 of the hollow tube heater 21 in the electric heating device 1, it is resisted by contact with the pair of clamping wall portions 631, 631 in the compression cylinder portion 63. At the same time, it is inserted into a predetermined position (positioning bottom surface 731) of the heating chamber 60. That is, in this embodiment, before the front end 102 of the tobacco rod 100 comes into contact with the positioning bottom surface 731 of the heating chamber 60, insertion resistance is generated by contact with the clamping wall portions 631, 631. Therefore, it is difficult for the user to That is, it is difficult to grasp the moment when the front end 102 of the tobacco rod 100 comes into contact with the positioning bottom surface 731 of the heating chamber 60 from the change in the insertion resistance of the tobacco rod 100 .

In contrast, the tobacco rod 100 is limited to being installed in the nozzle portion 120 (cooling segment 121) in a state where the front end 102 of the tobacco rod portion 110 is inserted into a predetermined position (positioning bottom surface 731) of the heating chamber 60. The position (height) of the ventilation hole 103 is consistent with the position (height) of the insertion port 5A of the heating chamber 60 . This allows the user to easily visually grasp the stop time of the insertion operation based on the relative position between the position (height) of the ventilation hole 103 and the position (height) of the insertion port 5A when the tobacco rod 100 is inserted into the heating chamber 60 . That is, when the tobacco rod 100 is inserted into the heating chamber 60, the position of the ventilation hole 103 is used as a mark, and when it is visually confirmed that the position (height) of the ventilation hole 103 coincides with the position (height) of the insertion port 5A, The moment when the front end 102 of the tobacco rod 100 comes into contact with the positioning bottom surface 731 of the heating chamber 60 can be grasped without relying on changes in the insertion resistance of the tobacco rod 100 .

Therefore, when the tobacco rod 100 is inserted into the hollow tube heater 21 of the electric heating device 1, as long as the position of the ventilation hole 103 in the tobacco rod 100 is consistent with the height of the insertion opening 5A, The tobacco rod 100 can be correctly inserted into the prescribed position. Furthermore, since the timing when the tobacco rod 100 is inserted into the predetermined position can be properly grasped, no matter whether the front end 102 of the tobacco rod 100 is in contact with the positioning bottom surface 731 of the heating chamber 60, attempts to further remove the tobacco from this state can be made. The action of pushing the rod 100 into the heating chamber 60 prevents problems before they occur. This can prevent the tobacco rod 100 from buckling in the middle or being flattened in the axial direction. In addition, when inserting the tobacco rod 100 into the heating chamber 60 of the hollow tube heater 21, it is also possible to prevent the user from mistaking the insertion resistance caused by the contact between the tobacco rod 100 and the clamping wall portions 631, 631 for a tobacco rod. The resistance of the front end 102 of the tobacco rod 100 coming into contact with the positioning bottom surface 731 of the heating chamber 60 stops the insertion of the tobacco rod 100 before the predetermined position.

In addition, when the vent hole 103 for introducing external air into the cooling section 121 of the nozzle section 120 is located on the upstream side of the cooling section 121 (tobacco rod section 110 side), the tobacco rod 100 is heated when the tobacco rod 100 is smoked. The vapor of volatile components released from the object 111 has a large cooling effect. On the other hand, when the tobacco rod 100 is smoked, when the ventilation hole 103 is located in the heating chamber 60 (in the area below the insertion port 5A and surrounded by the wall surface of the hollow tube heater 21), the smoking process is It is difficult to smoothly introduce external air into the suction nozzle portion 120 (cooling section 121) through the vent hole 103. On the other hand, the tobacco rod 100 of the present embodiment is configured such that, in a state where the insertion of the tobacco rod 100 into the predetermined position (positioning bottom surface 731) of the heating chamber 60 is completed, the passage of the nozzle portion 120 (cooling section 121) is The position (height) of the air hole 103 coincides with the position (height) of the insertion port 5A of the heating chamber 60, so the cooling effect of the cooling segment 121 during suction and the efficiency of taking in external air through the ventilation hole 103 can be achieved. In other words, from the viewpoint of balancing the cooling effect of the cooling section 121 during smoking and the intake efficiency of the external air through the ventilation hole 103, the position of the ventilation hole 103 in the tobacco rod 100 and the insertion of the heating chamber 60 can be changed. Depth is limited to the best relative relationship.

Furthermore, the tobacco rod 100 in this embodiment is covered with a lip release material in the lip release region R1 (see FIGS. 1 , 14 , etc.) located between the mouth end 101 of the mouthpiece 120 and the ventilation hole 103 . The outer surface of paper 130. In the present embodiment, the lip release material arrangement region R1 in which the lip release material is arranged is limited to a predetermined position (positioning bottom surface 731, positioning bottom surface 731, (innermost position), it is located in a region closer to the insertion port 5A than at least the heating wall portion RH of the compression tube portion 63 . Accordingly, when the heating wall portion RH of the compression cylinder portion 63 generates heat due to the operation of the hollow tube heater 21 in the electric heating device 1, lip release in the lip release material arrangement region R1 in the tobacco rod 100 can be suppressed. The material is directly heated by the heated wall RH. As a result, components that may affect the flavor of the tobacco rod 100 can be suppressed from being released from the lip release material. In the present embodiment, the lip release material arrangement area R1 is particularly limited to the area between the mouth end 101 of the mouth part 120 and the ventilation hole 103 . As described above, the vent hole 103 of the nozzle part 120 is limited to be in contact with the heating chamber 60 when the front end 102 of the tobacco rod 100 is inserted into the predetermined position (positioning bottom surface 731, innermost position) of the heating chamber 60 The position (height) of the insertion port 5A is the same. Therefore, as described above, by setting the range of the lip release material arrangement region R1 in the tobacco rod 100, when the tobacco rod 100 is inserted into the innermost position of the heating chamber 60, the heating wall of the compression tube 63 is portion RH, the lip release material arrangement region R1 can be positioned more reliably on the insertion port 5A side.

The embodiments of the present invention have been described above. However, the respective structures and combinations thereof in the embodiments are merely examples, and structures may be added, omitted, or added appropriately within the scope that does not deviate from the gist of the present invention. Substitutions and other changes. For example, the specific form of the compression tube 63 in the hollow tube heater 21 of the electric heating device 1 is not particularly limited as long as its cross-sectional area is relatively small compared to the cross-sectional area of the tobacco rod 100 . Therefore, in the above-mentioned embodiment, the compression cylinder 63 is constituted by a pair of clamping wall portions 631, 631 that are opposed in parallel along the axial direction. However, it may be replaced by The tobacco rod 100 is sandwiched between the non-parallel wall portions and the tobacco rod 100 inserted into the compression tube 63 is compressed from the outer peripheral side.

In addition, the compression cylinder portion 63 in the hollow tube heater 21 may be a cylindrical body having an inner diameter smaller than the diameter of the tobacco rod 100 . In this case, the inner diameter of the narrow cylindrical portion 62 located between the connecting cylindrical portion 61 and the compression cylindrical portion 63 in the chamber tube 6 may be directed from the upper end side connected to the connecting cylindrical portion 61 toward the compression cylindrical portion 63 The lower end side of the connection is gradually tapered in diameter. In any of the above modes, by compressing the inner wall surface of the tube portion 63, the tobacco rod 100 can be compressed from the outer peripheral side, and the tobacco rod 100 can be compressed and heated when the hollow tube heater 21 is operated.

Explanation of reference signs

1 Electric heating device

5 Insert the barrel

6 chamber tube

11 housing

20 heater units

21 Hollow tube heater

5A insertion port

60 heating chamber

61 Connecting barrel

62 Narrow barrel

63 Compression barrel

RH heated wall

100 tobacco sticks

103 vent

110 tobacco stem

120 nozzle part

121 cooling section

122 filter segments

130 sheet paper

631 Clamping wall

Claims (12)

1. A non-combustion heated tobacco product provided with an electrically heated device and a non-combustion heated tobacco rod for use with the electrically heated device, the non-combustion heated tobacco product characterized in that,

the non-combustion heating type tobacco rod comprises:

a tobacco rod portion having a tobacco filler containing cut tobacco and a roll paper around which the tobacco filler is wound;

a mouthpiece section coaxially coupled to the tobacco rod section by being wound with the tobacco rod section by a sheet-like paper;

the electrically heated device is provided with a hollow tube heater defined to internally form a heating chamber into which the non-combustion heated tobacco rod may be inserted,

the hollow tube heater has:

a compression tube portion for compressing the tobacco rod portion from an outer periphery thereof upon insertion of the non-combustion heating tobacco rod;

A heating wall portion formed of at least a part of the compression cylinder portion for heating the tobacco rod portion from an outer peripheral side;

the tobacco filler is wrapped by the roll paper in a state that the cut tobacco is randomly oriented,

the cross-sectional area of the tobacco rod portion is relatively large compared to the inner hollow cross-sectional area of the compression tube portion, and the tobacco rod portion inserted into the compression tube portion is defined to be compressed by the inner wall surface of the compression tube portion.

2. The non-combustion heated tobacco product of claim 1 wherein the cross-sectional area of the tobacco rod portion is defined such that the cross-sectional area after insertion into the compression cylinder portion is from 60% to 99% as compared to the cross-sectional area before insertion.

3. A non-combustion heated tobacco product as claimed in claim 1 or claim 2 in which the compression sleeve includes a pair of opposed gripping wall portions extending in an axial direction of the compression sleeve, the tobacco rod portion configured to be inserted into the compression sleeve being compressed by inner wall surfaces of the gripping wall portions.

4. A non-combustion heated tobacco product as claimed in claim 3 in which the inner wall surfaces of the pair of retaining wall portions are arranged in parallel opposition.

5. The non-combustion heated tobacco product of claim 4 wherein the diameter of the tobacco rod portion is defined by a dimension in which the distance between the inner wall surfaces of the pair of retaining wall portions is from 105% to 200%.

6. The non-combustion heated tobacco product according to any one of claims 1 to 5, wherein the entirety of the tobacco rod portion and a part of the nozzle portion are compressed by the inner wall surface of the compression cylinder portion in a state in which the non-combustion heated tobacco rod is inserted into the heating chamber at a predetermined position.

7. The non-combustion heated tobacco product according to claim 6 wherein the cross-sectional area of the mouthpiece portion is defined such that the cross-sectional area after insertion into the compression cylinder portion is from 60% to 99% as compared to the cross-sectional area before insertion.

8. The non-combustion heating tobacco product according to any one of claim 1 to 7, wherein the hollow tube further includes an insertion tube portion on the insertion port side,

the interior cross-sectional area of the insertion tube portion is relatively large compared to the cross-sectional area of the tobacco rod portion.

9. A non-combustion heating type tobacco rod for use with an electric heating device, which is heated from an outer peripheral side in a state of being inserted into a hollow tube heater defined in a heating chamber in which the electric heating device is formed, the non-combustion heating type tobacco rod comprising:

A tobacco rod portion having a tobacco filler containing cut tobacco and a roll paper around which the tobacco filler is wound;

a mouthpiece section coaxially coupled to the tobacco rod section by being wound with the tobacco rod section by a sheet-like paper;

the tobacco filler is wrapped by the roll paper in a state that the cut tobacco is randomly oriented,

the cross-sectional area of the tobacco rod portion is relatively large compared with the inner hollow cross-sectional area of a compression cylinder portion which is a compression cylinder portion of the hollow tube heater and has a heating wall portion for heating the tobacco rod portion from the outer peripheral side, the tobacco rod portion inserted into the compression cylinder portion being defined to be compressed by the inner wall surface of the compression cylinder portion.

10. The non-combustion heated tobacco rod according to claim 9 wherein the cross-sectional area of the tobacco rod portion is defined such that the cross-sectional area after insertion into the compression barrel portion is from 60% to 99% as compared to the cross-sectional area before insertion.

11. The non-combustion heated tobacco rod as claimed in claim 9 or 10, wherein the length of the tobacco rod portion is defined such that the entirety of the tobacco rod portion and a part of the suction nozzle portion are compressed by the inner wall surface of the compression cylinder portion in a state in which the non-combustion heated tobacco rod is inserted into the heating chamber at a prescribed position.

12. The non-combustion heated tobacco rod as recited in claim 11 wherein the cross-sectional area of the mouthpiece portion is defined such that the cross-sectional area after insertion into the compression barrel portion is from 60% to 99% as compared to the cross-sectional area before insertion.