TW202038762A - Heating type cigarette - Google Patents

Abstract

Provided is a technique for suppressing occurrence of damages of electric heater such as breaking or bending when inserted into a tobacco rod, avoiding a tobacco filler constituting the tobacco rod from being pushed into the mouthpiece side, and suppressing buckling deformation of the tobacco rod, in a heating type cigarette with the tobacco rod formed by filling the tobacco filler containing a tobacco raw material and an aerosol generating base material in the inner side of a wrapping paper. A heating type cigarette according to the present invention has a tobacco rod formed by filling a tobacco filler containing cut tobacco and an aerosol generating base material on the inner side of a wrapping paper, wherein the heating type cigarette includes a heater insertion cavity for insertion of a heater of a heating device, which opens in the front end side of the tobacco rod and extends in the axial direction of the tobacco rod.

Description

Heated cigarette

The present invention relates to a heated cigarette.

A heated cigarette is known. The heated cigarette has a tobacco rod, and the tobacco rod is filled with tobacco raw materials (such as tobacco shreds, tobacco particles, tobacco sheets, etc.) and mist ( Aerosol (also called aerosol) is formed by a method of generating a tobacco filler of a base material (glycerin, propylene glycol, etc.) (for example, refer to Patent Document 1). This kind of heated cigarette is a type of tobacco filling material that is heated by an electric heater in a heating device in a non-burning manner, and the mist generated in the tobacco filling material is delivered to the user Tobacco. With regard to electric heaters, heaters of various shapes such as blades and rods have been put into practical use. When in use, the electric heater is inserted from the front end of the tobacco rod to install the tobacco rod.于heating device.

[Prior Technical Literature] [Patent Literature]

Patent Document 1: Japanese Patent No. 5920744

Patent Document 2: Japanese Patent No. 5348648

However, in the conventional heated cigarettes, the insertion resistance when the electric heater is inserted from the front end of the tobacco rod is large, and when the tobacco rod (tobacco filler) is inserted, the electric heater may bend or bend. Damage, or the tobacco filler material constituting the tobacco rod is pushed into the suction nozzle side, and the tobacco rod is buckled and deformed.

The present invention was developed in view of the above-mentioned problems, and its purpose is to provide the following technology: heating a tobacco rod formed by filling a tobacco filler material containing tobacco raw materials and a mist generating substrate on the inside of the roll paper In cigarettes, it is used to prevent the electric heater from bending or bending when the electric heater is inserted into the tobacco rod, or the tobacco filler that constitutes the tobacco rod is pushed into the suction nozzle side, and the tobacco rod The situation of buckling deformation.

The heated cigarette of the present invention for solving the above-mentioned problems has a tobacco rod formed by filling a tobacco filler containing a tobacco raw material and a mist generating substrate on the inner side of a wrapper, the heated cigarette The heater insertion cavity is provided with a heater insertion cavity into which the heater of the heating device is inserted. The heater insertion cavity is tied to the front end surface side of the tobacco rod to form an opening, and extends along the axial direction of the tobacco rod.

Here, the cross-sectional area orthogonal to the axial direction of the tobacco rod in the cavity for inserting the heater can be compared with the opposed parts of the heater when the tobacco rod is inserted to a predetermined depth. The cross-sectional area is smaller.

In addition, the cross-sectional area of the cavity for inserting the heater perpendicular to the axial direction of the tobacco rod can be set to be opposed to each of the heaters inserted in the tobacco rod to a predetermined depth. The cross-sectional area of the oriented part is within the range of 70% or more and 99% or less.

In addition, the aforementioned cavity for heater insertion may have a cylindrical shape with a diameter of 1 mm or more and 4 mm or less.

In addition, the heater insertion cavity may have a conical shape with a tapered tip along the axial direction of the tobacco rod, and the diameter at the first end position located on the front end surface of the tobacco rod may be 1 mm or more and 4mm or less, and the diameter at the second end position on the opposite side of the front end surface is larger than 0mm and 0.5mm or less.

In addition, the heater insertion cavity may have a frusto-conical shape with a tapered tip along the axial direction of the tobacco rod, and the diameter at the first end position on the front end surface side of the tobacco rod may be 1 mm Above and 4 mm or less, and the diameter at the second end position located on the opposite side of the front end surface is 0.5 mm or more and 3.5 mm or less.

In addition, the heated cigarette system may have a filter coaxially connected to the base end side of the tobacco rod, and the filter system includes a cooling portion for extracting from the tobacco filler. The contained mist generates the volatile substances released by the substrate to be cooled.

In addition, in the heated cigarette of the present invention, the filter system may include a support portion for supporting the tobacco filler, and the support portion is arranged at the connection end connected to the base end side of the tobacco rod. When the heater is When it is inserted into the cavity for inserting the heater, it is used to prevent the tobacco filler from being pushed toward the mouth end side of the filter.

In addition, in the heated cigarette of the present invention, the filter may include a mouthpiece portion arranged on the mouth end side of the filter.

In addition, the cavity for inserting the heater may be formed as a through hole that penetrates the tobacco rod, or may be formed as a recess that does not penetrate the tobacco rod.

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

According to the present invention, the following technology can be provided: in a heating type cigarette having a tobacco rod formed by filling a tobacco filler containing tobacco raw materials and a mist generating substrate on the inner side of the roll paper, to suppress electrical heating When the device is inserted into the tobacco rod, the electric heater may cause damages such as bending and bending, or the tobacco filler that constitutes the tobacco rod is pushed into the suction nozzle side, causing the tobacco rod to buckle and deform.

1‧‧‧Heating cigarette

1a‧‧‧Nozzle end

1b‧‧‧Front end

2‧‧‧Tobacco rod

2a‧‧‧Front face

3‧‧‧Filter

4‧‧‧Support Department

5‧‧‧Cooling Department

5a‧‧‧Vent

6‧‧‧Cigarette holder

7‧‧‧Reeling paper

8‧‧‧Outer paper

21‧‧‧Tobacco filler

22‧‧‧roll paper

23, 23A, 23B, 23C, 23D, 23E‧‧‧Hole for heater insertion

23a‧‧‧First end

23b‧‧‧Second end

100‧‧‧Heating device

102‧‧‧Shell

103, 103A, 103B‧‧‧electric heater

103a‧‧‧Base end

103b‧‧‧Front end

104‧‧‧Controller

105‧‧‧Power

106‧‧‧Opening

107‧‧‧Containment cavity

107a‧‧‧Bottom

CL1‧‧‧Central axis

Figure 1 is a diagram schematically showing the internal structure of the heating cigarette of the first embodiment.

Figure 2 is a diagram showing the details of the tobacco rod in the heated cigarette.

Figure 3 is a schematic configuration diagram of a heating device using a heated cigarette.

Fig. 4 is a diagram showing a state in which the tobacco rod is installed in the cavity of the heating device and the electric heater is inserted into the tobacco rod to a predetermined depth.

Figure 5 is a diagram illustrating the tobacco rod of the first modification.

Fig. 6 is a diagram showing a state in which the tobacco rod of the first modification is installed in the receiving cavity of the heating device.

Fig. 7 is a diagram illustrating the tobacco rod of the second modification.

Fig. 8 is a diagram showing a state where the tobacco rod of the second modification is installed in the receiving cavity of the heating device.

Fig. 9A is a diagram illustrating a cavity for heater insertion in a third modification.

Fig. 9B is a diagram illustrating the heater insertion cavity of the fourth modification.

Fig. 9C is a diagram illustrating the heater insertion cavity of the fifth modification.

Here, the embodiment of the heating cigarette of the present invention will be explained based on the drawings. In addition, as long as it is not specifically stated, the technical scope of the invention is not limited to the dimensions, materials, shapes, and relative arrangements of the constituent elements described in this embodiment.

<Implementation Type 1>

[Heated cigarette]

FIG. 1 is a diagram schematically showing the internal structure of the heating cigarette 1 of the first embodiment. The heating type cigarette 1 is a tobacco material in which the tobacco filler is heated in a non-burning manner, and the mist generated in the tobacco filler is delivered to the user.

The heated cigarette 1 is provided with tobacco rods 2 and filters 3 arranged coaxially and neatly. The heated cigarette 1 has a mouthpiece end 1a, which is inserted into the mouth by a user during use, and a front end 1b, which is an end located on the opposite side of the mouthpiece end 1a. The filter 3 has a support part 4, a cooling part 5, and a mouthpiece part 6 arranged coaxially and neatly, and these components are arranged in order from the front end side of the filter 3. The support part 4, the cooling part 5, and the mouthpiece part 6 of the filter 3 are integrally wound by the winding paper 7. Furthermore, the tobacco rod 2 and the filter 3 are integrally connected by being wound up by the outer paper 8.

When the heated cigarette 1 is used, air is sucked by the user from the tip 1b through the heated cigarette 1 to the mouth end 1a. The front end 1b of the heated cigarette 1 can be understood as the front end or upstream end of the tobacco rod 2, and the mouthpiece end 1a of the heated cigarette 1 can be understood as the rear end or downstream end of the mouthpiece portion 6.

The tobacco rod 2 is arranged at the tip 1b of the heated cigarette 1. The tobacco rod 2 is a rod-shaped member covered by the roll paper 22 to cover the side of the tobacco filler 21 containing the tobacco raw material and the mist generating substrate. In this embodiment, the tobacco raw material contained in the tobacco filler 21 may include any one or more of tobacco shreds, tobacco particles, and reconstituted tobacco materials. In this embodiment, the tobacco filler 21 is reconstituted as a tobacco material. The reconstituted tobacco material may be cut into small pieces of reconstituted tobacco sheet, or pulverized into a granular or powder form, or the reconstituted tobacco sheet is not cut but cut Folded, etc. The reconstituted tobacco sheet is formed into a sheet by an appropriate method, for example, by adding a binder, a gelling agent, a crosslinking agent, a flavor, a viscosity regulator, etc. to the homogenized tobacco, and mixing it. Homogenized tobacco is a tobacco material obtained by pulverizing, grinding and mixing tobacco leaves, dried tobacco leaves, tobacco shreds, expanded tobacco, regenerated tobacco, etc. The reconstituted tobacco sheet system may be a reconstituted pulping sheet (reconstituted tobacco cast sheet) formed using an appropriate method such as slurry method, papermaking method, rolling method, etc. , Reconstitute the tobacco sheet and reconstitute the rolled sheet. For example, the reconstituted tobacco pulping sheet is a reconstituted tobacco sheet manufactured by pulping the reconstituted tobacco spread on a flat plate, drying and dewatering. In addition, the reconstituted tobacco sheet is a reconstituted tobacco sheet manufactured by blending pulp (cellulose fibers) in the reconstituted tobacco pulping and papermaking. material. In addition, the reconstituted tobacco rolled sheet is a reconstituted tobacco sheet manufactured by rolling the reconstituted tobacco pulp into a sheet by a roller or the like, and then drying it.

The mist generating substrate contained in the tobacco filler 21 is a substance that generates mist when the volatile substances released after volatilization are cooled. The type of the mist generating substrate is not particularly limited, and extractable substances derived from various natural products can be appropriately selected according to the application. In terms of mist generating substrates, for example, there are glycerin, propylene glycol, triacetin, 1,3-butanediol, and these mixtures. In addition, the tobacco filler 21 series may contain flavors. The kind of fragrance is not particularly limited.

The support 4 is a segment located on the front end side of the filter 3. The support part 4 is located directly downstream of the tobacco rod 2 and is arranged in a state of contact with the rear end of the tobacco rod 2. The supporting part 4 may be, for example, a hollow cellulose acetate tube. In other words, the supporting portion 4 may be formed by penetrating a center hole in the center of the cross section of the cylindrical cellulose acetate fiber bundle. In addition, in other forms of the support part 4, it may be a paper filter or a paper tube filled with cellulose fibers. If it is a paper tube having a certain thickness, it can effectively function as the support part 4. The supporting part 4 is a segment for preventing the tobacco filler 21 from being pushed into the downstream side toward the cooling part 5 in the heating cigarette 1 when the electric heater of the heating device of the heating cigarette 1 is inserted into the tobacco rod 2. In addition, the support part 4 also functions as a spacer for separating the cooling part 5 of the heated cigarette 1 and the tobacco rod 2.

The cooling part 5 is located directly downstream of the support part 4 and is arranged so as to abut against the rear end of the support part 4. When the heated cigarette 1 is used, the volatile substances released from the tobacco rod 2 (tobacco filler 21) flow along the cooling part 5 toward the downstream side. The volatile substances released from the tobacco rod 2 (tobacco filler 21) are cooled by the cooling part 5, thereby forming a substance to be inhaled by the user. Mist. In the configuration shown in Fig. 1, the cooling part 5 is formed by a hollow paper tube having a vent hole 5a through which air can be introduced to the outside. However, the cooling part 5 may not have the vent hole 5a. In addition, the cooling part 5 may have an endothermic agent which is arranged so as not to hinder the flow of volatile substances and mist. For example, the cooling part 5 may be formed of a filter material having a plurality of flow paths (through holes) formed along the longitudinal direction (axial direction) of the filter 3.

The mouthpiece portion 6 is a segment located at the rear end of the filter 3, that is, on the side of the mouthpiece end 1a. The mouthpiece portion 6 may be located directly downstream of the cooling portion 5 and arranged in a state of being in contact with the rear end of the cooling portion 5. In the form shown in Fig. 1, the mouthpiece portion 6 may be provided with, for example, a filter material formed by cellulose acetate fibers formed into a cylindrical shape. In addition, the mouthpiece portion 6 may be a center hole filter, a paper filter filled with cellulose fibers, or a paper tube without a filter material. The cigarette holder part 6 can be formed by any of a solid filter material with a filter material, a mesoporous filter, a paper filter, and a paper tube without a filter material, and can also be formed by selectively combining these form.

Figure 2 is a diagram showing the details of the tobacco rod 2 in the heated cigarette 1. As shown in FIG. 2, the front end surface 2a of the tobacco rod 2 (tobacco filler 21) has an opening formed in a heater insertion cavity 23 into which the heater of the heating device is inserted. In the example shown in FIG. 2, the heater insertion cavity 23 is formed as a non-penetrating recess (cavity) along the axial direction of the tobacco rod 2 (tobacco filler 21). However, the heater insertion cavity 23 may be formed as a cavity penetrating along the axial direction of the tobacco rod 2 (tobacco filler 21). In the configuration shown in Figure 2, the heater insertion cavity 23 has a tapered shape with a tapered diameter from the front end surface 2a of the tobacco rod 2 (tobacco filler 21) toward the rear end side. , But may have a frustoconical shape with a narrower diameter from the front end surface 2a toward the rear end side. The shape of the heater insertion cavity 23 is not particularly limited. It may have a conical shape or a shape other than a truncated cone shape, such as a cylindrical shape. The symbol CL1 shown in Figure 2 is the central axis of the tobacco rod 2. The heater insertion cavity 23 may be formed coaxially with the central axis CL1 of the tobacco rod 2.

Here, it is preferable that the heater insertion cavity 23 of the tobacco rod 2 (tobacco filler 21) has a diameter of 1 mm or more and 4 mm or less at the position of the first end 23a on the side of the front end surface 2a of the tobacco rod 2 , And the diameter at the position of the second end 23b located on the side opposite to the front end surface 2a is larger than 0 mm and 0.5 mm or less. In addition, it is preferable that the heater insertion cavity 23 has a diameter at a position of the first end 23a located on the side of the front end surface 2a of the tobacco rod 2 to be 10% or more and 80% or less with respect to the diameter of the tobacco rod 2. The diameter at the second end 23b is set to be 0% larger than the diameter of the tobacco rod 2 and 10% or less.

Fig. 3 is a schematic configuration diagram of the heating device 100 to which the heating cigarette 1 of the first embodiment is applied. The heating device 100 has a housing 102 belonging to a housing, which is used to house various constituent parts. In the housing 102, an electric heater 103, a controller (control part) 104, a power supply 105, and the like are housed. The housing 102 has a receiving cavity 107 which contains an opening 106 for inserting the tobacco rod 2 of the heated cigarette 1. The accommodating cavity 107 is a cylindrical hollow part that can accommodate the tobacco rod 2.

As shown in Fig. 3, an electric heater 103 is provided in the housing cavity 107. The electric heater 103 has a conical shape, and is vertically protruded from the center of the bottom 107a of the accommodating cavity 107 toward the opening 106 side, and gradually increases from the base end 103a to the front end 103b. fine. In addition, the central axis of the electric heater 103 is coaxial with the central axis of the housing cavity 107. In addition, although the type of electric heater 103 is not particularly limited, for example, A heating wire (for example, Nichrome, FeCr, FeNi, etc.) is arranged around the steel material, or a ceramic heater.

The heating cigarette 1 constructed in the above manner has a heater insertion cavity 23 formed in the tobacco rod 2 (tobacco filler 21). Therefore, when the tobacco rod 2 is installed in the accommodating cavity 107 of the heating device 100, By inserting the electric heater 103 into the heater insertion cavity 23 of the tobacco rod 2 (tobacco filler 21), the insertion resistance when the electric heater 103 is inserted into the tobacco filler 21 can be reduced. Thereby, the usability when the tobacco rod 2 is installed in the heating device 100 (when the electric heater 103 is inserted into the tobacco rod 2) can be improved. In addition, it can be suppressed that when the electric heater 103 is inserted into the tobacco rod 2, the electric heater 103 may be damaged such as bending and bending, or the tobacco rod 2 may be buckled and deformed. In addition, it can also be prevented that when the tobacco rod 2 is installed in the receiving cavity 107 of the heating device 100, the tobacco filler 21 of the tobacco rod 2 may be pushed into the mouthpiece side.

In addition, in this embodiment, since the heater insertion cavity 23 of the tobacco rod 2 (tobacco filler 21) has a conical shape, when the electric heater 103 is inserted into the heater insertion cavity 23, the The tobacco filler 21 surrounding the side periphery of the heater insertion cavity 23 and the electric heater 103 are closely adhered appropriately, and the heat conduction from the electric heater 103 to the tobacco filler 21 can be improved. Furthermore, when the tobacco rod 2 of the heated cigarette 1 is withdrawn from the accommodating cavity 107 of the heating device 100 after use, the friction generated between the electric heater 103 and the tobacco filler 21 will also be small, so it is not easy to cause The tobacco filler 21 falls off. In addition, it is not easy to cause sintering of the tobacco filler 21 during use. Therefore, when the tobacco rod 2 is withdrawn from the accommodating cavity 107 of the heating device 100 after use, the tobacco filler 21 is not easy to fall off.

Here, the heater insertion cavity 23 of the tobacco rod 2 (tobacco filler 21) in the present embodiment has a cross-sectional area orthogonal to the central axis CL1 of the tobacco rod 2 and can be set to be larger The cross-sectional area of each facing portion of the electric heater 103 inserted into the tobacco rod 2 to a predetermined depth is smaller. Fig. 4 is a diagram showing a state where the electric heater 103 is inserted into the tobacco rod 2 to a predetermined depth when the tobacco rod 2 is installed in the receiving cavity 107 in the heating device 100. In this embodiment, the diameter (cross-sectional area) of the heater insertion cavity 23 is relative to the diameter of each facing portion of the electric heater 103 inserted into the tobacco rod 2 to a predetermined depth ( The cross-sectional area) is set within the range of 70% or more and 99% or less. The opposing parts referred to herein refer to parts facing each other in the electric heater 103 and the heater insertion cavity 23 in a state where the electric heater 103 is inserted into the tobacco rod 2 to a predetermined depth.

In the hollow portion 23 for inserting the heater of the tobacco rod 2 (tobacco filler 21) in this embodiment, when the cross-sectional area is set to be larger than each of the electric heaters 103 of the heating device 100 using the heating cigarette 1 When the corresponding portion is smaller, when the electric heater 103 is inserted into the heater insertion cavity 23, the electric heater 103 is inserted while expanding the heater insertion cavity 23. At this time, the tobacco filler 21 surrounding the side periphery of the heater insertion cavity 23 and the electric heater 103 can be more closely attached, and the heat transfer efficiency from the electric heater 103 to the tobacco filler 21 can be improved.

<First modification>

Fig. 5 is a diagram illustrating the tobacco rod 2 (tobacco filler 21) of the first modification. The heater insertion cavity 23A of the tobacco rod 2 in the first modified example has a cylindrical shape with a fixed diameter along the direction of the central axis CL1 of the tobacco rod 2. Fig. 6 is a diagram showing a state in which the tobacco rod 2 of the first modification is installed in the receiving cavity 107 of the heating device 100. Fig. 6 shows a state where the electric heater 103A is inserted into the tobacco rod 2 to a predetermined depth. In addition, in this modification, the electrical The heater 103A has a cylindrical shape similar to the heater insertion cavity 23A of the first modification.

In the heater insertion cavity 23A of the first modification, the diameter (cross-sectional area) may be set to a relatively smaller value than the electric heater 103A. At this time, when the electric heater 103A is inserted into the heater insertion cavity 23A, the electric heater 103A is inserted while expanding the heater insertion cavity 23A. Thereby, the tobacco filler 21 surrounding the side circumference of the heater insertion cavity 23A and the electric heater 103A can be closely adhered. As a result, the heat transfer efficiency from the electric heater 103A to the tobacco filler 21 can be improved.

Here, if the heater insertion cavity 23A has an excessively small diameter, the insertion resistance when inserting the electric heater 103A is likely to increase, and if the heater insertion cavity 23A has an excessively large diameter, When the electric heater 103A is inserted, the contact property tends to deteriorate. Therefore, in the heater insertion cavity 23A of the first modification, the diameter (cross-sectional area) of the electric heater 103A is set to a range of 70% to 99%. Inside. Thereby, the insertion resistance when the electric heater 103A is inserted and the contact after insertion can be combined. As a result, the availability when the tobacco rod 2 is installed in the heating device 100 (when the electric heater 103A is inserted into the tobacco rod 2) and the heating efficiency when the tobacco filler 21 is heated by the electric heater 103A can be improved at the same time.

Furthermore, since the diameter of the heater insertion cavity 23A of the first modification has a certain cylindrical shape, even at the second end 23b side, the heater insertion cavity 23A can be sufficiently heated when the heater is heated. The surrounding tobacco filler 21 is heated. Therefore, the tobacco tobacco filler 21 can not easily generate temperature distribution along the direction of the central axis CL1 when the heater is heated, and the delivery amount and delivery stability of the mist can be improved.

In addition, the heater insertion cavity 23A of the first modification example preferably has a cylindrical shape with a diameter of 1 mm or more and 4 mm or less. In addition, it is preferable to set the diameter of the heater insertion cavity 23A to 10% or more and 80% or less with respect to the diameter of the tobacco rod 2. For example, when the diameter of the tobacco rod 2 is 7 mm, it is preferable to set the diameter of the heater insertion cavity 23A to approximately 2.5 mm.

<Second Modification>

Fig. 7 is a diagram illustrating the tobacco rod 2 (tobacco filler 21) of the second modification. The heater insertion cavity 23B of the tobacco rod 2 of the second modification has a frustoconical shape (truncated cone shape) that is tapered along the central axis CL1 of the tobacco rod 2. Fig. 8 is a diagram showing a state in which the tobacco rod 2 of the second modification is installed in the receiving cavity 107 of the heating device 100. Fig. 8 shows a state where the electric heater 103B is inserted into the tobacco rod 2 to a predetermined depth. In addition, in this modification, the electric heater 103B has a truncated cone shape (truncated cone shape) similarly to the heater insertion cavity 23B of the second modification.

In the heater insertion cavity 23B of the second modification, the diameter (cross-sectional area) can also be set to be larger than that of the electric heater 103B inserted into the tobacco rod 2 to a predetermined depth. The diameter (cross-sectional area) is smaller. At this time, when the electric heater 103B is inserted into the heater insertion cavity 23B, the electric heater 103B is inserted while expanding the heater insertion cavity 23B. Thereby, the tobacco filler 21 surrounding the side periphery of the hollow part 23B for heater insertion and the tip part 103b can be closely adhered. As a result, the heat transfer efficiency from the electric heater 103B to the tobacco filler 21 can be improved.

Here, if the heater insertion cavity 23B has an excessively small diameter, the insertion resistance when inserting the electric heater 103B is likely to increase. If the heater insertion cavity 23B is inserted If the diameter is excessively large, the contact property when the electric heater 103B is inserted tends to deteriorate. Therefore, the diameter (cross-sectional area) of the heater insertion cavity 23B of the second modification is relative to the diameter of each facing portion of the electric heater 103B inserted into the tobacco rod 2 to a predetermined depth (Cross-sectional area), set to be within the range of 70% or more and 99% or less. Thereby, the insertion resistance when the electric heater 103B is inserted into the tobacco rod 2 and the contact property after insertion can be combined. As a result, the availability when the tobacco rod 2 is installed in the heating device 100 (when the electric heater 103B is inserted into the tobacco rod 2) and the heating efficiency when the tobacco filler 21 is heated by the electric heater 103B can be improved at the same time.

In addition, the heater insertion cavity 23B according to the second modification has a truncated cone shape (truncated cone shape), so it can have both a conical heater insertion cavity 23 and a cylindrical shape. The advantages of the heater insertion cavity 23.

That is, the heater insertion cavity 23B of the second modification is easy to ensure that the diameter at the position of the second end 23b on the suction nozzle side is larger than that of the conical heater insertion cavity 23 Therefore, the temperature distribution along the central axis CL1 in the tobacco filler 21 is not easily generated when the heater is heated. In addition, the heater insertion cavity 23B according to the second modification has a diameter (cross-sectional area) that becomes smaller and smaller at the tip along the direction of the central axis CL1 of the tobacco rod 2. Therefore, the electric heater can be reduced The insertion resistance of 103B when inserting the tobacco rod 2 can also improve the contact after insertion.

Here, the heater insertion cavity 23B of the second modified example preferably has a diameter at a position of the first end 23a on the side of the front end surface 2a of the tobacco rod 2 of 1 mm or more and 4 mm or less, and is positioned at and The diameter of the position of the second end 23b on the opposite side of the front end surface 2a is set to be 0.5 mm or more and 3.5 mm or less. In addition, the heater insertion cavity 23B preferably has a diameter at the position of the first end 23a on the side of the front end surface 2a of the tobacco rod 2 relative to the diameter of the tobacco rod 2. It is set to 10% or more and 80% or less, and the diameter of the position of the second end 23b is set to 5% or more and 70% or less with respect to the diameter of the tobacco rod 2.

In addition, the heater insertion cavity 23, 23A, 23B of the tobacco rod 2 (tobacco filler 21) in this embodiment is not limited to the above-mentioned conical, cylindrical, and frusto-conical shapes, and various shapes can be adopted . In addition, the number of heater insertion holes 23, 23A, and 23B formed in the tobacco rod 2 (tobacco filler 21) is not particularly limited. For example, the tobacco rod 2 (tobacco filler 21) may be formed with a plurality of heater insertion cavities 23, 23A, and 23B.

In addition, the heater insertion hollow portions 23, 23A, and 23B described above have been described as an example in which a non-penetrating recess that does not penetrate the tobacco rod 2 is formed along the central axis CL1 of the tobacco rod 2. It can be formed as a through hole penetrating the tobacco rod 2. Fig. 9A is a diagram illustrating the heater insertion cavity 23C of the third modification. The heater insertion cavity 23C of the third modification has a conical shape, and is the same as the heater insertion cavity 23 shown in FIG. 2 except that a point is formed as a through hole penetrating the tobacco rod 2. Fig. 9B is a diagram illustrating the heater insertion cavity 23D of the fourth modification. The heater insertion cavity 23D of the fourth modification has a cylindrical shape, and is the same as the heater insertion cavity 23A shown in FIG. 5 except for forming a through hole penetrating the tobacco rod 2. Fig. 9C is a diagram illustrating the heater insertion cavity 23E of the fifth modification. The heater insertion cavity 23E of the fifth modification has a truncated cone shape, and except for the point formed as a through hole penetrating the tobacco rod 2, it is the same as the heater insertion cavity 23B shown in Fig. 7 the same.

In addition, as shown in FIGS. 9A to 9C, when the heater insertion holes 23C, 23D, and 23E are provided as through holes penetrating in the direction of the central axis CL1 of the tobacco rod 2, the heater insertion holes can be formed The tobacco rod 2 behind the cavities 23C, 23D, 23E is joined by a filter (filter The tip attachment) device is connected to the filter 3 as a whole. With this, for example, when a needle is inserted into the front end surface 2a of the tobacco rod 2 to form the heater insertion holes 23C, 23D, 23E, even if the tobacco filler 21 is pushed by the needle to the suction nozzle side, if the The tobacco rod 2 is connected to the filter 3 without any special defects.

In addition, as shown in FIGS. 9A to 9C, by forming heater insertion hollow portions 23C, 23D, and 23E as through holes penetrating the tobacco rod 2, there is no need to install the heater at the tip of the electric heater 103. There is no tobacco filler 21 on the further downstream side, and the thermal conductivity during heating of the heater is reduced. Thereby, the mist generated when the heater is heated can be prevented from being cooled and condensed in the tobacco filler 21 near the front end of the electric heater 103. As a result, the amount of mist delivered during use can be increased.

On the other hand, as shown in Figs. 2, 5, and 7, by forming the heater insertion holes 23, 23A, 23B as non-through holes that do not penetrate the tobacco rod 2, for example, there is no When the heater insertion cavity 23, 23A, 23B is formed by inserting a needle into the front end surface 2a of the tobacco rod 2, the tobacco filler 21 of the tobacco rod 2 is pushed to the suction nozzle side by the needle . Thereby, in the filter attaching machine device, after the filter 3 is connected to the tobacco rod 2, the heater insertion holes 23, 23A, 23B can be perforated, and the manufacturability is excellent.

In summary, although the embodiment of the present invention has been described, the heating cigarette of the present invention is not limited to this.

1‧‧‧Heating cigarette

1a‧‧‧Nozzle end

1b‧‧‧Front end

2‧‧‧Tobacco rod

2a‧‧‧Front face

3‧‧‧Filter

4‧‧‧Support Department

5‧‧‧Cooling Department

5a‧‧‧Vent

6‧‧‧Cigarette holder

7‧‧‧Reeling paper

8‧‧‧Outer paper

21‧‧‧Tobacco filler

22‧‧‧roll paper

23‧‧‧Hole for inserting heater

Claims (11)

A heating type cigarette is provided with a tobacco rod formed by filling a tobacco filler containing tobacco raw materials and a mist generating substrate on the inside of a roll paper; the heating type cigarette is provided with a heating device for heating The heater inserting cavity into which the heater is inserted, the heater inserting cavity is tied to the front end surface of the tobacco rod to form an opening, and extends along the axial direction of the tobacco rod. The heating cigarette according to the first item of the scope of patent application, wherein the cross-sectional area of the hollow portion for inserting the heater perpendicular to the axial direction of the tobacco rod is greater than that of the tobacco rod inserted into the tobacco rod to a predetermined depth In this state, the cross-sectional area of each facing portion of the aforementioned heater is smaller. The heating cigarette according to the second item of the patent application, wherein the cross-sectional area of the hollow portion for inserting the heater perpendicular to the axial direction of the tobacco rod is set relative to the tobacco rod inserted into the tobacco rod. The cross-sectional area of each facing portion of the heater in the state to a predetermined depth is within the range of 70% or more and 99% or less. The heating cigarette according to the first or second patent application, wherein the cavity for inserting the heater has a cylindrical shape with a diameter of 1 mm or more and 4 mm or less. According to the heating type cigarette described in item 1 or item 2 of the scope of patent application, the cavity for inserting the heater has a conical shape with a tapered tip along the axial direction of the tobacco rod, and is located at The diameter of the first end position on the front end surface side of the tobacco rod is 1 mm or more and 4 mm or less, and the diameter at the second end position opposite to the front end surface is larger than 0 mm and 0.5 mm or less. According to the heating cigarette described in item 1 or item 2 of the scope of the patent application, the cavity for inserting the heater has a thinner tip along the axial direction of the tobacco rod The shape is frustoconical, and the diameter at the first end position on the front end face side of the tobacco rod is 1mm or more and 4mm or less, and the diameter at the second end position on the opposite side to the front end face is 0.5mm or more and 3.5 mm below. The heated cigarette according to the first or second claim, wherein the heated cigarette has a filter coaxially connected to the base end of the tobacco rod, and the filter includes a cooling part, The cooling part is used to cool the volatile substances released from the mist generating substrate contained in the tobacco filler. The heated cigarette according to claim 7, wherein the filter includes a support portion for supporting the tobacco filler, and the support portion is arranged at the connection end connected to the base end side of the tobacco rod. When the heater is inserted into the cavity for inserting the heater, it is used to prevent the tobacco filler from being pushed into the suction nozzle end side of the filter. The heated cigarette according to claim 8, wherein the filter includes a mouthpiece portion arranged at the mouth end side of the filter. According to the heating type cigarette according to the first or second patent application, the cavity for inserting the heater is formed as a through hole penetrating the tobacco rod. The heated cigarette according to the first or second claim, wherein the cavity for inserting the heater is formed as a recess that does not penetrate the tobacco rod.

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