JP2018174784A - Smoking tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a smoking tool facilitating assembly and disassembly, having safety, and simplifying maintenance.SOLUTION: A smoking tool 1 includes: a cylindrical holding tube 10 in which tobacco is inserted; a heater part 20 disposed inside the holding tube 10; a connection terminal part 35 provided at a base end side of the heater part 20; a connector 52 disposed inside the holding tube 10 and supplying electric power to the heater part 20; and a heater fixing structure 15 provided inside the holding tube 10, capable of fixing the heater part 20 in the axial direction when being assembled, and capable of opening the heater part 20 when being disassembled.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a smoking device for smoking by heating tobacco by a heater.

  Conventionally, the smoking act ignites a cigarette leaf, vaporizes components such as nicotine and tar contained in the tobacco leaf at the time of combustion, and aspirates and vaporizes these components. In this conventional smoking behavior, harmful substances of human beings become smoke and stay in the room at the time of burning of the leaves of the cigarette and its wrapping paper, it is pointed out that the harmful effect of the passive smoking of the surrounding people.

  Therefore, in recent years, substances containing suction components contained in tobacco leaves or tobacco leaves (here, these are collectively referred to as “cigarettes”) are heated by an electric heater without igniting tobacco leaves, A smoking device that vaporizes this suction component is in widespread use. According to this, since the tobacco leaf and the paper do not burn, the harmful effect of the passive smoking is reduced.

  In this type of smoking device, a heater for heating is disposed inside the tubular member, and when the cigarette is inserted into the tubular member, the heater is axially pierced at the tip of the cigarette. . When the cigarette leaves are heated by this heater, nicotine and the like are vaporized and can be sucked. A sliding cylinder is provided on the inner peripheral side of the cylindrical member for pulling out the cigarette after the suction is completed, and the sliding cylinder holds the cigarette. When the sliding cylinder is pulled out of the cylindrical member, the sliding cylinder and the cigarette interlock and are forcibly separated from the heater. Since the integrity of the cigarette is maintained in the slide cylinder at the time of withdrawal, it is possible to suppress that a part of the cigarette is broken and remains (see Patent Document 1).

Patent No. 6050826

  Conventional smoking articles have the following problems.

  (1) Even if a slide cylinder is present, cigarette burns, burns, leaf fragments, etc. gradually remain around the heater. However, since the heater and the like can not be disassembled, cleaning of the residue is difficult.

  (2) When the area around the heater is scratched with a bar or the like for cleaning purposes, the heater is easily broken, which causes a problem of easy breakage. In that case, since only the heater can not be replaced, there is no alternative but to buy the smoking tool itself. Similarly, since the heater is made of ceramic, it is broken rapidly by rapid cooling when moisture such as rain or sweat is applied in a high temperature state immediately after smoking. Also in that case, there is a problem that it is only necessary to buy the smoking device itself again.

  (3) The assembly structure of the heater, the battery for heating the heater, the circuit board for voltage control, etc. is complicated, and there is a problem that the manufacturing cost increases.

  (4) The residue deposited around the heater inhibits the reciprocating movement of the slide cylinder. As a result, the cigarette is inserted and suctioned in a state where the slide cylinder is not fully pushed in, and the heating by the heater tends to be insufficient.

  (5) When smoking repeatedly, the heater is stressed by contact with the cigarette, and the heater, the heater holding portion, and the like may be deformed (displaced). As a result, when the heater interferes with the slide cylinder, the heater is easily broken by the manual operation of the slide cylinder. In particular, when the heater is a rod made of metal, the heater is easily bent.

  (6) The sliding cylinder is likely to be hot. Therefore, it is dangerous for the smoker to withdraw the hot slide with the cigarette.

  The present invention has been made in view of the above problems, and it is an object of the present invention to provide a smoking device which is easy to assemble and disassemble and safe and easy to maintain.

  The present invention for achieving the above object is a cylindrical holding cylinder into which cigarettes are inserted from the front end side toward the rear end side, and is disposed inside the holding cylinder and extends in the axial direction of the holding cylinder A heater unit for heating the cigarette; and a connection terminal unit integrally provided on the base end side of the heater unit for supplying electric power to the heater unit; and disposed inside the holding cylinder, the connection terminal unit And a connector for supplying power to the heater unit, and provided inside the holding cylinder, the heater unit being axially fixable at the time of assembly, and the heater unit being openable at the time of disassembly And a fixed structure.

  In relation to the smoking tool, the heater fixing structure is provided on the inside of the holding cylinder, and is engaged with the heater portion in the axial direction to restrict movement of the heater portion toward the tip end. And a rear side engaging portion which is provided inside the holding cylinder and which is engaged with the heater portion in the axial direction to restrict the movement of the heater portion to the rear side. Do.

  In relation to the smoking tool, at least one of the front engagement portion and the rear engagement portion in the heater holding structure is characterized in that it can be disassembled in an axial direction or a radial direction.

  As the heater fixing structure, a stopper portion integrally provided on the base end side of the heater portion to configure a step in a radial direction is provided in relation to the smoking tool, and the front side engaging portion is The tip end side engaging surface of the stopper portion is axially engaged.

  In relation to the smoking tool, at least one of the front side engaging portion and the rear side engaging portion is characterized in that it is detachable with respect to the holding cylinder.

  In relation to the above-mentioned smoking article, the connector is characterized in that it also serves as the rear side engaging portion in the heater fixing structure.

  In relation to the above-mentioned smoking tool, it further comprises a substrate on which the connector is mounted, and the holding cylinder is provided with a step for controlling the substrate which restricts the movement of the substrate to the rear end side in the axial direction. I assume.

  In relation to the smoking tool, the substrate regulating step is removable with respect to the remaining portion of the holding cylinder, and by removing the substrate regulating step, at least the connector, the substrate, and the heater unit Can be taken out of the holding cylinder in the axial direction.

  In relation to the smoking tool, the holding cylinder is characterized by including an engaging portion restricting step portion which restricts the movement of the front side engaging portion toward the tip end in the axial direction.

  In relation to the smoking tool, the engagement portion restricting step portion is removable with respect to the remaining portion of the holding cylinder, and by removing the engagement portion restricting step portion, at least the front side engagement is achieved. The part and the heater part can be taken out of the holding cylinder in the axial direction.

  It is a bottomed cylindrical member arranged in the inside of the above-mentioned holding cylinder in relation to the above-mentioned smoking article, and provided with an inner cylinder which can be inserted with the above-mentioned cigarette from its opening, and a bottom of the above-mentioned inner cylinder An opening is formed in which the heater portion is inserted, and the bottom portion doubles as at least a part of the heater fixing structure.

  In relation to the above-mentioned smoking article, it is characterized by providing a cleaning part arranged to be able to reciprocate in the axial direction while approaching or abutting on the outer peripheral surface of the heater part.

  In relation to the smoking tool, the cleaning unit has a weight area having a predetermined weight, and by vibrating the holding cylinder in the axial direction, the cleaning section is moved by inertia of the weight area. It is characterized in that it reciprocates in the axial direction.

  In relation to the above-mentioned smoking article, the whole of the cleaning section is accommodated in the inside of the holding cylinder in the whole area of the reciprocating movement stroke.

  In relation to the smoking tool, when the heater unit is viewed sideways, at least a part of the cleaning unit is overlapped with the heater unit over the entire area of the reciprocation stroke.

  In relation to the above-mentioned smoking article, the tip of the above-mentioned heater part has projected to the above-mentioned cleaning part over the whole region of a reciprocation move stroke.

  In relation to the above-mentioned smoking article, it is characterized by having energizing means which biases the cleaning part to the tip side.

  In relation to the smoking tool, the biasing means biases the cleaning portion toward the distal end side only during a partial stroke on the proximal side during the reciprocating movement stroke.

  An operation unit is provided on the rear side of the cleaning unit in relation to the smoking tool, and when the user moves the operation unit in the axial direction, the cleaning unit operates in conjunction with the movement of the operation unit. It is characterized in that it moves in the axial direction.

  The present invention for achieving the above object is a cylindrical holding cylinder into which cigarettes are inserted from the front end side toward the rear end side, and is disposed inside the holding cylinder and extends in the axial direction of the holding cylinder A heater unit for heating the cigarette, and a cleaning unit axially reciprocably disposed while coming close to or in contact with the outer peripheral surface of the heater unit, the cleaning unit having a predetermined weight It is a smoking tool characterized by having a weight area and vibrating the said maintenance cylinder in the direction of an axis, so that the cleaning part reciprocates in the direction of an axis by inertia of the weight area.

  The present invention for achieving the above object is a cylindrical holding cylinder into which cigarettes are inserted from the front end side toward the rear end side, and is disposed inside the holding cylinder and extends in the axial direction of the holding cylinder A heater unit for heating the cigarette, and a cleaning unit axially reciprocably disposed while coming close to or in contact with the outer peripheral surface of the heater unit; when the heater unit is viewed sideways, The smoking article is characterized in that at least a part of the cleaning portion overlaps the heater portion in the entire area of the reciprocating movement stroke.

  The present invention for achieving the above object is a cylindrical holding cylinder into which cigarettes are inserted from the front end side toward the rear end side, and is disposed inside the holding cylinder and extends in the axial direction of the holding cylinder A heater unit for heating the cigarette, a cleaning unit axially reciprocably disposed while coming close to or in contact with the outer peripheral surface of the heater unit, and an operation unit provided on the rear side of the cleaning unit; And the cleaning unit is moved in the axial direction in conjunction with the movement of the operation unit when the user moves the operation unit in the axial direction.

  According to the present invention, it is possible to obtain an excellent effect that it is possible to obtain a smoking tool which is easy to assemble and disassemble and safe and easy to maintain.

(A) It is a front fragmentary sectional view of a smoking article concerning a first embodiment of the present invention, (B) is a side view of BB arrow of a front sectional view, (C) is C of a front sectional view. It is a side view of -C arrow, (D) is a fragmentary sectional view of DD arrow of a front sectional view. It is a side surface sectional view of the smoking tool. (A) is a plan view, a front sectional view, a bottom view and a side sectional view of the cleaning part, (B) is a front view and a side view of a heater part etc., and (C) is a plan view of the substrate and a front view , (D) is a plan view and a front sectional view of the stopper for the cleaning unit, (E) is a plan view and a front sectional view of the inner cylinder, and (F) is an elastic plate It is a top view and a front view. (A) is a front sectional view and a bottom view of the holding cylinder, (B) is a plan view and a front sectional view of the elastic ring, and (C) is a plan view and a front sectional view of the rear end cap. It is an exploded view of the smoking tool. (A)-(D) are front fragmentary sectional views which show the smoking procedure of the smoking tool. (A) thru | or (C) are front fragmentary sectional views which show the cleaning procedure of the smoking tool. (A) is a front fragmentary sectional view concerning the modification of the smoking tool, (B) is a front sectional view showing the inner cylinder of the modification, (C) is a bottom view of the inner cylinder , (D) is a bottom view of the disassembled state of the inner cylinder. (A) is a front fragmentary sectional view concerning the modification of the smoking tool, (B) is a front sectional view showing the inner cylinder of the modification, (C) is a bottom view of the inner cylinder , (D) is a bottom view of the disassembled state of the inner cylinder. (A) is a front fragmentary sectional view concerning a modification of the smoking tool, (B) is a fragmentary sectional view of BB arrow of (A), (C) is a B- of (A) It is sectional drawing of the decomposition | disassembly state of B arrow. (A) And (B) is a front fragmentary sectional view which concerns on the modification of the smoking tool. (A) is a front fragmentary sectional view concerning the modification of the smoking tool, (B) is a sectional view of the BB arrow of (A), (C) is a BB of (A) It is sectional drawing of the decomposition | disassembly state of the arrow. (A) And (B) is a front fragmentary sectional view which concerns on the modification of the smoking tool. (A) And (B) is a side surface fragmentary sectional view of the smoking article concerning a second embodiment of the present invention. (A) And (B) is a side surface fragmentary sectional view of the smoking article concerning a third embodiment of the present invention. (A) is a side surface sectional view concerning a modification of a smoking object concerning a third embodiment of the present invention, and (B) is a front fragmentary sectional view. (A) is a side surface sectional view concerning a modification of a smoking object concerning a third embodiment of the present invention, and (B) is a front fragmentary sectional view. (A) And (B) is a side surface fragmentary sectional view of the smoking article concerning a fourth embodiment of the present invention. (A) is a side surface sectional view of a smoking device concerning a fifth embodiment of the present invention, and (B) is a side surface sectional view of a modification of the smoking device. (A) is a side surface sectional view of a smoking device concerning a sixth embodiment of the present invention, and (B) is a side surface sectional view of a modification of the smoking device. (A) is a side surface fragmentary sectional view of the modification of the smoking tool, (B) and (C) is a K section enlarged fragmentary sectional view of (A). It is an exploded view of the smoking article concerning a 7th embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the attached drawings.

  FIG.1 and FIG.2 shows the whole structure of the smoking article 1 which concerns on 1st embodiment of this invention. The smoking tool 1 is disposed inside the holding cylinder 10 and the holding cylinder 10 in which the tobacco is inserted from the front end side toward the rear end side, and extends in the axial direction of the holding cylinder 10 to heat the cigarette The heater unit 20, the stopper unit 30 integrally provided on the base end side of the heater unit 20, and the connection terminal unit 35 integrally provided on the base end side of the heater unit 20 and supplying power to the heater unit 20 A base 50 housed on the rear end side inside the holding cylinder 10, a front side engaging portion 78 fixed inside the holding cylinder 10 and engaged with the stopper portion 30, and a shaft relative to the heater portion 20 It has the cleaning part 40 grade | etc., Arrange | positioned so that reciprocating movement to direction is possible.

  <Retaining cylinder>

  As shown in FIG. 4A, the holding cylinder 10 has a substantially cylindrical shape here, and has a front end opening 10A and a rear end opening 10B. At the inside, the tip end side is a cigarette storage space 10C for storing cigarettes, and the rear end side is a substrate storage space 10D for storing the substrate 50. In addition, a space between the cigarette housing space 10C and the substrate housing space 10D is a heater mounting space 10E in which a part of the heater unit 20 extends.

  The holding cylinder 10 is provided with an engagement portion restricting step 12 which is formed in the vicinity of the tip end opening 10A so that the inner wall is reduced in diameter radially inward. The engagement portion regulating step 12 has an engagement surface 12A opposed to the rear end side, and other members (the cleaning portion stopper 48 and the inner cylinder 70) directly engaged with this are interposed Finally, it axially engages with the front engagement portion 78. As a result, the front side engaging portion 78 can not move to the tip side in the axial direction.

  On the inner wall of the substrate accommodation space 10D in the holding cylinder 10, a pair of slit-like substrate recesses 14 extending in the axial direction is formed in a pair so as to substantially face each other in the diameter direction. By inserting both widthwise edges of the substrate 50 into the pair of substrate recesses 14, the substrate 50 is positioned in the circumferential direction in the substrate accommodation space 10 D (see FIG. 1D). A positioning surface 14A is formed at the back end of the substrate recess 14, and the substrate 50 is positioned on the tip side in the axial direction by bringing the tip edge of the substrate 50 into contact with the positioning surface 14A. Ru. When the substrate 50 is fixed by being offset in the radial direction from the axial center of the substrate accommodation space 10D, the slit-like recess 14 for the substrate is also formed to be opposed at the position offset in the radial direction from the axial center. Just do it. That is, the slit-like substrate recess 14 may be opposed along a predetermined chord of the inner circumference circle.

  As shown in FIG. 4C, the holding cylinder 10 is provided with a rear end cap 80 which is attachable to and detachable from the rear end opening 10B. Here, when the rear end opening 10B is an internal thread and the rear end cap 80 is an external thread, the both are coupled by the screw fastening structure. The inner side surface (tip side surface) of the rear end cap 80 serves as a substrate regulating step portion 88 extending radially inward as compared to the rear end opening 10B. As shown in FIG. 1, the substrate regulation step portion 88 abuts on the rear end edge of the substrate 50 to regulate movement of the substrate 50 to the rear end side in the axial direction. On the other hand, if the rear end cap 80 is removed, at least the substrate 50 and the heater portion 20 can be taken out from the rear end opening 10 B of the holding cylinder 10. In the present embodiment, all the internal components including the inner cylinder 70 and the like can be taken out from the rear end opening 10B. In addition, although the structure in which the rear end cap 80 is fastened to the holding cylinder 10 by a screw is illustrated here, another coupling method such as a claw or press fitting may be used.

  <Heater section etc>

  As shown in FIG. 3B, the heater portion 20 is a strip-shaped plate extending in the axial direction, and the front end side is a heating area 22 having a high temperature, and the rear end side is a non-heating area 24 having a low temperature or room temperature. . In the heating area 22, a high temperature wiring element 22A which is heated to a high temperature when energized due to a high resistance value is provided inside or on the surface. In the non-heating area 24, a low temperature wiring element 24A which has a resistance value lower than that of the high temperature wiring element 22A and which hardly generates heat during energization is provided inside or on the surface. The tip end of the heater portion 20 is inclined to have an angle with respect to the direction perpendicular to the axis, and is smoothly inserted into the inside of the tobacco leaf.

  The stopper 30 is integrally disposed on the proximal end side of the heater 20. The stopper portion 30 constitutes a step that expands in the radial direction (at least one of the width direction or the thickness direction, and here, the width direction) with reference to the heater portion 20. The stopper portion 30 may be integrally formed of the same material as the heating area 22 and the non-heating area 24. Alternatively, the heating area 22 and the non-heating area 24 may be bonded, welded, and engaged to each other by separate members. It may be integrated. The front end side engaging surface 30A of the stopper portion 30 engages with the rear end side engaging surface 78B of the front side engaging portion 78 through the elastic plate 16 (see FIG. 1). Furthermore, a connection terminal portion 35 is provided on the rear end side of the stopper portion 30 in the heater portion 20. The connection terminal portion 35 is composed of a plurality of metal pins extending in the axial direction. The connection terminal portion 30 is not limited to the metal pin structure, but is a socket structure in which a metal pin or a metal plate is combined inside or outside the male or female socket of an insulator, or a plate structure in which a metal electrode surface is formed on the insulating substrate surface. Various terminal structures such as a fastening structure fixed with a screw, a sandwiching structure for winding a wire etc. around a screw etc, a crimped terminal structure, etc. can be adopted.

  <Board>

  As shown in FIG. 3C, the substrate 50 is disposed at the end edge on the front end side, and the connector portion 52 to which the metal pin of the connection terminal portion 35 is detachably inserted, the temperature control circuit 53, and the outside A power receiving connector 54 connected and supplied with power, a switch 55, and an LED 56 are provided. Here, the power receiving connector 54 is a connector of USB standard (in detail, micro USB), and is connected to external power. Note that a connector opening 11A for exposing the power reception connector 54 to the outside is formed in the holding cylinder 10 (see FIG. 1B). The external power is preferably a DC power supply of about 5.0V. The power reception connector 54 is connected to a converter for DC conversion of household AC power, or connected to an external battery, an external battery or the like. In addition, although it does not show in particular here, you may mount a battery and a battery in the inside of the smoking article 1. FIG. The temperature control circuit 53 controls the current and / or the voltage supplied through the power receiving connector 54 to control the temperature of the heating area 22 of the heater unit 20. In the present embodiment, the heating area 22 is controlled to be stable in the range of 180 ° C. to 240 ° C.

  The switch 55 switches ON / OFF of heating by the heater unit 20. This operation is performed via the external operation unit 11B disposed radially movably in the holding cylinder 10 (see FIG. 1 (C)). The LED 56 informs the smoker of the ON / OFF operation state and the failure state of heating by lighting, blinking, extinguishing, and the like. The light of the LED 56 is emitted to the outside through the light transmitting portion 11C formed in the holding cylinder 10 (see FIG. 1 (C)).

  <Front side engagement part (inner cylinder) etc.>

  As shown in FIG. 1, the front side engaging portion 78 is configured by a part of a bottomed inner cylinder 70 disposed on the inner periphery of the holding cylinder 10. Specifically, as shown in FIG. 3E, the inner cylinder 70 is formed of a cylindrical cylinder portion 73 extending in the axial direction, a bottom portion 75 formed on the rear end side of the cylinder portion 73, and a bottom portion 75 Opening 75A. In the opening 75A, the heater unit 20 is inserted from the rear end side toward the front end side. It is preferable that a gap (not shown) is provided between the opening 75A and the heater unit 20. The gap can suppress the heat of the heater unit 20 from being transmitted to the inner cylinder 70. The inner cylinder 70 is preferably made of a material having high heat insulation or heat resistance (for example, a material having high heat resistance such as polycarbonate or polypropylene). It is because the heat of the tobacco to be heated can be suppressed from being transmitted to the holding cylinder 10.

  The periphery of the opening 75 </ b> A in the bottom portion 75 is a front engagement portion 78. As shown in FIG. 1, the rear end side engagement surface 78B of the front side engagement portion 78 abuts on the front end side engagement surface 30A of the stopper portion 30 via the elastic plate (elastic member) 16 (axial direction Engage in Therefore, the movement of the heater unit 20 to the tip side is restricted by the stopper unit 30.

  <Rear side engaging part etc>

  Inside the holding cylinder 10, the rear side engaging part 39 which regulates that the heater part 20 moves to the back side is provided. In the present embodiment, the rear side engaging portion 39 is realized by the connector portion 52. That is, the connector unit 52 restricts the movement of the heater unit 20 to the rear side. The movement restriction of the heater unit 20 by the connector unit 52 is not limited to the case where the stopper unit 30 and the connector unit 52 are engaged. For example, the pin of the connection terminal portion 35 in the heater portion 20 is set to be longer, and the pin tip of the connection terminal portion 35 is the connector portion 52 before the stopper portion 30 or the like in the heater portion 20 engages with the connector portion 52. It also includes the case where it collides with the bottom of the hole, thereby restricting the rearward movement of the heater unit 20.

  <Heater fixing structure>

  Inside the holding cylinder 10, a heater fixing structure 15 is provided, which can fix the heater unit 20 in the axial direction at the time of assembly and can open the heater unit 20 at the time of disassembly. The heater fixing structure 15 of the present embodiment is configured of the front side engaging portion 78, the rear side engaging portion 39 (connector portion 52), the stopper portion 30 and the like as described above. At the time of disassembly, if the front side engaging portion 78 is removed to the tip end side of the holding cylinder 10 or the rear side engaging portion 39 (connector portion 52) is detached from the heater portion 20, the heater portion 20 becomes independent. It can be opened and only the heater unit 20 can be replaced.

  As shown in FIG. 3 (F), the elastic plate 16 is elastically deformable in the axial direction, and is made of a heat insulating material. For example, the material of the elastic plate 16 is preferably silicone rubber or the like. The elastic plate 16 absorbs shape errors of various parts and members such as an outer dimension error of the substrate 50, an installation error of the connector portion 52, and a shape error of the stopper portion 30 by its own elastic deformation. In addition, this elastic plate 16 is not an essential structure, and its installation place is not limited to a present Example, either.

  <Cleaning part>

  As shown in FIG. 1, the cleaning unit 40 is disposed so as to be capable of reciprocating in the axial direction while approaching or abutting on the outer peripheral surface of the heater unit 20. As shown in FIG. 3A, the cleaning portion 40 is a cylindrical member, and a groove-like through hole 44 is formed inside. The shape of the through hole 44 as viewed in the axial direction is substantially the same as the shape of the heater portion 20 as viewed in the axial direction, and the heater portion 20 is inserted into the through hole 44. As a result, the cleaning unit 40 approaches or abuts on the outer peripheral surface of the heater unit 20, and while being slid with the heater unit 20, can be reciprocated in the axial direction.

  The outer diameter of the cleaning portion 40 substantially matches the inner diameter of the inner peripheral surface of the inner cylinder 70 (that is, the inner peripheral surface of the holding space of cigarettes). As a result, the cleaning portion 40 approaches or abuts against the inner circumferential surface of the inner cylinder 70, and can reciprocate while sliding in the axial direction. Therefore, the cleaning unit 40 also functions as a holding member that indirectly holds the heater unit 20 by being interposed between the inner cylinder 70 and the heater unit 20.

  On the tip end face of the cleaning portion 40, along the edge of the through hole 44, a first protrusion 40A having a sawtooth-like cross section that is convex in the tip direction is formed. The first protrusion 40A plays a role of scraping off the tobacco leaf attached to the outer peripheral surface of the heater portion 20. Further, on the tip end face, a second protrusion 40B having a sawtooth-like cross section which is convex in the tip end direction along the outer peripheral edge is formed. The second projection 40B plays a role of preventing burning or the like from entering the gap between the inner cylinder 70 and the cleaning portion 40, and scraping off tobacco leaves and paper rolls attached to the inner peripheral surface of the inner cylinder 70. .

  The cleaning portion 40 is set such that the axial dimension L is the same or larger than the diameter R. Further, except for the through hole 44, the cleaning portion 40 is a solid member. The solid portion becomes a weight region 42 having a desired weight, and the smoker vibrates the holding cylinder 10 in the axial direction to generate inertia in the cleaning unit 40. As a result, the cleaning unit 40 reciprocates relative to the heater unit 20 and the inner cylinder 70 inside the holding cylinder 10.

  Between the rear end surface of the cleaning portion 40 and the bottom portion 75 of the inner cylinder 70, a compression spring 60 serving as biasing means for biasing the cleaning portion 40 toward the tip end is disposed. The compression spring 60 biases the cleaning unit 40 toward the distal end side within a range of a part of the proximal end side in the reciprocating movement stroke (moving stroke) of the cleaning unit 40. Specifically, when no external force other than gravity is applied to the cleaning unit 40 (see FIG. 1), the compression spring 60 does not bias the cleaning unit 40. On the other hand, when the cleaning unit 40 is pushed to the back side (rear end side) by the inertial force of the cleaning unit 40 or the cleaning unit 40 is pushed to the back side through the cigarette inserted by the smoker (see FIG. B)) The compression spring 60 is contracted and its cleaning (repulsion) biases the cleaning unit 40 to the tip side.

  As shown in FIG. 1, a cylindrical cleaning portion stopper 48 is installed between the inner cylinder 70 and the engagement portion regulating step 12 on the inner peripheral surface of the holding cylinder 10 (FIG. 3 (D )reference). The inner diameter of the cleaning portion stopper 48 is set smaller than the inner diameter of the inner cylinder 70, and as a result, a cleaning portion restricting step portion 49 projecting radially inward is formed at the boundary between the both. The cleaning portion restricting step portion 49 axially engages with the distal end surface of the cleaning portion 40 to define one limit of the moving stroke of the cleaning portion 40. The other limit of the movement stroke of the cleaning unit 40 is defined by the rear end surface of the cleaning unit 40 engaging with the bottom 75 of the inner cylinder 70 via the contracted spring 60.

  An elastic ring 18 is disposed between the cleaning portion stopper 48 and the engagement portion regulating step 12 (see FIG. 4B). The elastic ring 18 is elastically deformable in the axial direction, and is made of a material having high heat resistance or heat insulation. Similar to the elastic plate 16, the elastic ring 18 is subjected to external dimensional error of the substrate 50, installation error of the connector portion 52, shape error of the stopper portion 30, the inner cylinder 70 and the stopper 48 for cleaning portion by elastic deformation of itself. Absorb. In addition, the elastic ring 18 is not an essential structure, and the installation place is not limited to a present Example, either.

  <Assembly method of smoking article>

  Next, a method of assembling the smoking device 1 will be described. In addition, since the disassembling method may be performed in the procedure opposite to the assembling method, the description here is omitted.

  As shown in FIG. 5, the connector portion 52 (rear side engagement portion 39) of the substrate 50 and the connection terminal portion 35 are connected to integrate them, and the heater portion 20 is opened in the elastic plate 16 and the inner cylinder 70. Insert 75A from the rear end side toward the front end side. As a result, the stopper portion 30 engages with the front engagement portion 78 via the elastic plate 16. On the other hand, the compression spring 60 and the cleaning portion 40 are inserted into the inner cylinder 70 from the front end side toward the rear end side. As a result, the internal heating module M is completed by the substrate 50, the connection terminal portion 35, the stopper portion 30, the heater portion 20, the inner cylinder 70 (front side engaging portion 78), the compression spring 60 and the cleaning portion 40.

  The elastic ring 18 and the cleaning unit stopper 48 are previously inserted into the holding cylinder 10 from the rear end opening 10B. Thereafter, the internal heating module M is inserted from the rear end opening 10B. When the internal heating module M is pushed toward the tip of the holding cylinder 10, the front end surface of the inner cylinder 70 is engaged with the engagement portion regulating step 12 of the holding cylinder 10 via the elastic ring 18 and the stopper 48 for the cleaning portion. Engage in the axial direction. Thereafter, the rear end cap 80 is screwed into the rear end opening 10B of the holding cylinder 10, and the substrate regulating step portion 88 is brought into contact with the rear end edge of the substrate 50. The heating module M is completely positioned, and the assembly of the smoking device 1 is completed. As a result, the heater unit 20 is fixed in the axial direction by the heater holding structure 15 (the front engagement unit 78, the stopper unit 30, the rear engagement unit 39 (connector unit 52), etc.) provided inside the holding cylinder 10. Be done. At the same time, since disassembly is easy, it is possible to replace only the heater part 20 (and its integral part), which is the most fragile part, as a consumable.

  <How to use smoking equipment>

  As shown in FIG. 6A, the cigarette T is inserted from the tip opening 10A of the holding cylinder 10 to the inside. As shown in FIG. 6 (B), if the cigarette T is strongly pushed into the inside, the heating area 22 of the heater unit 20 is stuck in the inside of the leaf of the cigarette T. At this time, the cleaning unit 40 is temporarily pushed to the rear end side by the tip of the cigarette T, and the compression spring 60 is contracted. However, when the smoker releases his hand from the cigarette T, FIG. As shown, the restoring force of the compression spring 60 pushes back the cleaning unit 40 and the cigarette T slightly and stops. In this state, when the switch 55 is turned on and heating of the cigarette T by the heater unit 20 is started, components such as nicotine contained in the leaves of the cigarette T are vaporized, and the device is put into a smoking enabled state. After the smoking is completed, the switch 55 may be turned off (it may be automatically turned off by a timer), and then the cigarette T may be pulled out in the axial direction by hand as shown in FIG. 6 (D). At this time, part of the leaves of the cigarette T may become residue Z and remain on the circumferential surface of the heater unit 20 or the inner circumferential surface of the inner cylinder 70.

  Therefore, after smoking, as shown in FIG. 7 (A), the smoker vibrates the holding cylinder 10 in the vertical direction, with the tip opening 10A of the holding cylinder 10 directed vertically downward (here, as shown in FIG. Although not, the cleaning unit 40 moves vertically downward when the state of FIG. 7 (A) is reached). As a result, as shown in FIGS. 7 (B) and 7 (C), the cleaning part 40 inside reciprocates relative to the heater part 20 and the inner cylinder 70 in the axial direction, thereby scraping the residue Z. Drop. By this simple operation, the inside of the holding cylinder 10 is always kept clean. When the state of FIG. 7A is used as a reference, the movement stroke S of the front end surface of the cleaning unit 40 is the stroke SA of the compression spring 60 in the contraction direction (rear end direction) (see FIG. 7B). And the stroke SB in the distal direction (see FIG. 7C). As described above, by securing the stroke in both directions at the start of the excitation, the initial movement of the cleaning unit 40 can be smoothed.

  Furthermore, in the present embodiment, as shown in FIG. 7, the entire cleaning unit 40 is always housed inside the holding cylinder 10 throughout the reciprocating movement stroke of the cleaning unit 40. In this case, the cleaning unit 40 whose temperature has risen does not protrude from the holding cylinder 10 to the outside, so the safety for the smoker is high.

  Furthermore, in the present embodiment, when the heater unit 20 is viewed sideways, at least a part of the cleaning unit 40 overlaps the heater unit 20 in the entire area of the reciprocating movement stroke of the cleaning unit 40. That is, the heater unit 20 always exists in the through hole 44 of the cleaning unit 40. In this case, since the heater unit 20 is always held by the cleaning unit 40 during vibration, it is possible to reduce the trouble of bending the heater unit 20. In particular, in the present embodiment, as shown in FIG. 7C, since the projecting end of the heater unit 20 always protrudes with respect to the cleaning unit 40, interference between the projecting end and the cleaning unit 40 is avoided, and at the time of excitation. Damage to the heater unit 20 at the time of

  As mentioned above, according to the smoking tool 1 of this embodiment, the stopper part 30 which has a level | step difference of radial direction is provided with respect to the heater part 20, The front side engagement fixed to the holding cylinder 10 side By axially engaging the joint portion 78, positioning is performed on the tip side in the axial direction. As a result, since the positioning accuracy of the heater part 20 becomes high, it becomes possible to heat a cigarette always in a stable state.

  Further, according to this structure, since the heater portion 20 is positioned not by bonding or welding but by axial engagement, the heater portion 20 and the stopper portion 30 can be pulled out from the rear end side or the front side engagement By removing the mating portion 78 from the holding cylinder 10, the heater portion 20 can be easily disassembled. In particular, in the smoking tool 1, the front engagement portion 78 (inner cylinder 70) is axially removable from the holding cylinder 10. Therefore, as shown in FIG. 5, after assembling and modularizing the front side engaging portion 78 and the heater portion 20 (the stopper portion 30) in advance, the assembling and disassembling becomes extremely easy since the mounting can be mounted on the holding cylinder 10 . Further, since the present structure is easy to disassemble, it becomes possible to replace only the heater part 20 (and its integral part) which is the most fragile part as a consumable item.

  At this time, since the holding cylinder 10 side is provided with the engagement portion restricting step portion 12 which restricts the movement of the front side engaging portion 78 (inner cylinder 70) to the tip end side in the axial direction, The positioning operation of the front side engaging portion 78 (inner cylinder 70) is also facilitated, and as a result, the positioning operation of the heater portion 20 is also simplified indirectly. Since the positioning accuracy of the front side engaging portion 78 (inner cylinder 70) also increases, the positioning accuracy of the heater portion 20 also indirectly increases.

  In the present embodiment, since the front side engaging portion 78 is provided by the bottom portion 75 of the inner cylinder 70, if the inner cylinder 70 is positioned on the holding cylinder 10, the front side engaging portion 78 is fixed. Also complete at the same time. Further, the heat insulating property of the inner cylinder 70 can suppress the heat of the heater unit 20 from being transmitted to the holding cylinder 10 and the substrate 50 side.

  Further, in the smoking tool 1, the holding cylinder 10 is provided with a substrate regulating step portion 88 (rear end cap 80) for restricting movement of the substrate 50 to the rear end side in the axial direction. When the substrate 50 is positioned on the rear end side by the substrate regulating step portion 88, the heater portion 20 attached to the connector portion 52 is also positioned indirectly. Therefore, the heater unit 20 is positioned at the front end side by the engaging unit 78 and positioned at the rear end side by the substrate 50, so that the heater unit 20 is stably held in the holding cylinder 10 in the axial direction.

  Further, since the substrate regulating step portion 88 (rear end cap 80) is detachable from the remaining portion of the holding cylinder 10, the substrate 50 and the heater portion 20 can be opened at the rear end opening of the holding cylinder 10 when this is removed. It is very easy to disassemble from 10B.

  Furthermore, in the smoking tool 1, the cleaning unit 40 that reciprocates in the axial direction with respect to the inner peripheral surface of the heater unit 20 and the inner cylinder 70 is provided. Therefore, the residue Z attached to the heater unit 20 or the like Can be scraped off easily. As a result, the tobacco storage space 10C can be always kept clean.

  In particular, the main cleaning unit 40 has a weight region 42 having a predetermined weight, and causes the cleaning unit 40 to reciprocate in the axial direction by inertia when the holding cylinder 10 is vibrated in the axial direction. Under the present circumstances, since the whole of the cleaning part 40 is accommodated in the inside of the holding cylinder 10 in the whole region of a reciprocation stroke, the safety at the time of cleaning is improved. Moreover, since the slide structure etc. for carrying out forced operation of the cleaning part 40 from the exterior become unnecessary, the structure of the smoking tool 1 can be simplified.

  In the smoking device 1, at least a part of the cleaning portion 40 always overlaps the heater portion 20 in the axial direction throughout the reciprocating movement stroke. In this way, since the heater unit 20 is always held by the cleaning unit 40, bending of the heater unit 20 can be suppressed. In the present embodiment, since the tip of the heater unit 20 protrudes with respect to the cleaning unit 40, it is possible to suppress wear and the like of the tip at the time of vibration.

  Furthermore, the smoking tool 1 includes a compression spring 60 (biasing means) that biases the cleaning portion 40 toward the distal end. The compression spring 60 can provide the cleaning portion 40 with a stroke SA in the compression direction of the compression spring 60. For example, when the residue Z of cigarette is clogged in the gap between the cleaning unit 40 and the heater unit 20, the cleaning unit 40 is pressed backward with a rod or the like to compress the compression spring 60 It is possible to release the pressure and to return the compression spring 60 to release the residue Z clogged in the gap.

  <Modification of Heater Holding Structure>

  Although the case where the connector part 52 is made to serve as the back side engaging part 39 of the heater holding structure 15 was illustrated in the smoking tool 1 of 1st embodiment, this invention is not limited to this. For example, as shown in FIG. 8, a circumferentially extending recessed groove may be formed around the stopper portion 30, and the opening 75 A of the bottom portion 75 may be fitted into this recessed groove. With this configuration, the distal end side engaging surface 30A engaged with the bottom end 75 on the distal end side in the recessed groove of the stopper portion 30 and the rear end engaging surface engaged rearward with respect to the bottom portion 75 30B is formed, and the heater holding structure 15 fixed in the axial direction is realized. The bottom portion 75 serves as both the front side engaging portion 78 and the rear side engaging portion 39.

  Under the present circumstances, as shown to FIG. 8 (B) thru | or (D), it is preferable that the inner side cylinder 70 is comprised so that isolation | separation is possible for the some cylinder piece 71 by the isolation | separation boundary 70X extended in an axial direction. As described above, when the inner cylinder 70 (the front engagement portion 78 and the rear engagement portion 39) including the opening 75A can be disassembled in the radial direction, these can be freely fitted to the recess of the stopper 30. It can be combined or separated. Although the case where it separates into two tube pieces 71 was illustrated here, it may separate into three or more.

  Moreover, although the case where the ditch | groove extended in the circumferential direction was provided around the stopper part 30 and the opening 75A of the bottom part 75 was fitted was illustrated in the modification of FIG. 8, this invention is not limited to this. For example, as in the case of the heater holding structure 15 shown in FIG. 9, the stopper portion 30 of the heater portion 20 is omitted, and the opening 75A of the bottom portion 75 presses the heater portion 20 from the radial direction. The heater unit 20 may be fixed and held in the axial direction by force). Under the present circumstances, it is preferable to suppress the relative slip of the axial direction effectively by arrange | positioning high friction resistant materials 75B, such as high heat resistance rubber, on the inner periphery of opening 75A (or outer periphery of heater part 20).

  Furthermore, although the case where the bottom part 75 of the inner side cylinder 70 is engaged with the stopper part 30 of the heater part 20 was illustrated as the heater holding structure 15 in the smoking tool 1 of 1st embodiment, this invention is not limited to this. For example, as shown in FIG. 10, the inner cylinder 70 may be omitted, and a circular holding plate 76 instead of the bottom 75 may be fixed to the inner periphery of the holding cylinder 10. An opening 76A is formed in the holding plate 76, and the heater portion 20 is inserted into the opening 76A. A stepped portion (here, a concave groove extending in the circumferential direction) 10P is formed in the inner peripheral surface of the holding cylinder 10, and the holding plate 76 is engaged with the stepped portion 10P in the axial direction (particularly, the tip direction). Match. As a result, the holding plate 76 is fixed to the inside of the holding cylinder 10 in the axial direction (in particular, in the tip direction), so that the heater portion 20 can be held via the holding plate 76.

  Under the present circumstances, as shown to FIG. 10 (B) and (C), it is preferable that the holding cylinder 10 is comprised so that isolation | separation is possible for several cylinder piece 10Y by the separation boundary 10X extended in an axial direction. As described above, when the holding cylinder 10 is disassemblable in the radial direction including the step portion (groove) 10P, the holding plate 76 can be freely held or released by the step portion 10P. Although the case where it isolate | separates into two cylinder pieces 10Y was illustrated here, you may isolate | separate into three or more. The female end cap 77 is attached to the front end side of the holding cylinder 10 and the rear end cap 80 is also attached to the rear end side, so that the holding cylinder 10 extends in the radial direction after assembly. Do not separate. Since the holding cylinder 10 has a divided structure, the cleaning portion restricting step 49 is directly formed on the inner peripheral surface of the holding cylinder 10, and the front end surface of the cleaning portion 40 is axially engaged. You may combine. On the other hand, when the holding cylinder 10 does not have the divided structure, the cleaning portion restricting step 49 may be provided on the tip end cap 77 side.

  Moreover, although the case where the holding plate 76 which becomes an independent member intervenes between the holding cylinder 10 and the heater part 20 was illustrated in the heater holding structure 15 of FIG. 10, this invention is not limited to this. For example, as shown in FIG. 11A, by forming the stopper portion 30 of the heater portion 20 in a plate shape that reaches the inner peripheral surface of the holding cylinder 10, the holding plate can be omitted. Accordingly, the outer peripheral edge of the stopper portion 30 axially engages with the step portion 10P formed on the inner peripheral surface of the holding cylinder 10. The heater portion 20 can not move in both axial directions due to the recessed groove (bidirectional stepped portion) of the stepped portion 10P. That is, the recess 10P serves as the rear engagement portion 39 and the front engagement portion 78.

  Furthermore, as in 11 (B), the stepped portion 10P may be a stepped portion in one direction which is reduced in diameter from the rear end side toward the front end side. In this way, the stopper portion 30 of the heater portion 20 is inserted from the rear end side of the holding cylinder 10 and engaged with the step portion 10P, whereby movement of the heater portion 20 in the distal direction can be restricted. In this case, since it is not necessary to make the holding cylinder 10 into a divided structure, the tip cap 77 can be omitted. Although not shown in the drawings, it is also possible to adopt a structure in which the stopper portion 30 is inserted from the front end side as the other direction step part whose diameter is reduced from the front end side to the rear end side.

  Furthermore, as shown in FIG. 12, the holding plate 76 of FIG. 10 may be integrally molded on the inner peripheral surface of the holding cylinder 10. In this case, as shown in FIGS. 12 (B) and 12 (C), it is preferable to make the holding cylinder 10 and the holding plate 76 split in the radial direction, and the convenience at the time of assembly or disassembly improves.

  In the heater holding structure 15 of the first embodiment, the bottom portion 75 and the elastic plate 16 are formed into a flat shape, and the stopper portion 30 is engaged only in the axial direction. However, the present invention is not limited to this. For example, as shown in FIG. 13A, a convex portion 75E may be formed on the rear surface side of the bottom portion 75, and a radially extending concave groove 75F may be formed in the convex portion 75E. When at least a part of the stopper portion 30 is inserted into the recessed groove 75F, the stopper portion 30 is also positioned in the radial or circumferential direction, so that the central axis of the heater portion 20 and the central axis of the holding cylinder 10 are coaxial Accuracy can be improved. Furthermore, as shown in FIG. 13 (B), it is also preferable to make the concave groove 75F into a tapered shape (V groove shape). In this case, the opening on the insertion side of the recessed groove 75F becomes wider, so the insertion of the stopper portion 30 becomes easy, and the stopper portion 30 to be inserted can automatically realize centering along the inclined surface. The coaxial accuracy can be further enhanced. In addition, if the concave groove 75F has a tapered shape, there is also an advantage that the inclination of the stopper portion 30 can be properly tolerated if an external force acts on the heater portion 20 to incline.

  In FIG. 13, since the thickness of the bottom portion 75 is thin, the convex portion 75E is formed on the rear surface side, and the concave groove 75F is formed therein, but if the thickness of the bottom portion 75 is increased The recessed groove 75F may be formed directly on the rear surface side.

  Next, a smoking device 1 according to a second embodiment of the present invention will be described with reference to FIG. In addition, about the part, member, and structure which are the same as or similar to the smoking tool of 1st embodiment, description is abbreviate | omitted, and only a different point from 1st embodiment is demonstrated.

  The cleaning portion 40 has an axially extending leg 46 at the rear end side. The leg 46 extends through the leg opening 75B formed in the bottom 75 of the inner cylinder 70 to the substrate accommodation space 10D. On the other hand, the compression spring (biasing member) shown in the first embodiment is omitted. The length of the leg 46 is set such that a part of the leg 46 always extends into the substrate accommodation space 10D within the range of the entire stroke of the cleaning unit 40, as shown in FIG. 14 (B). Is preferred.

  According to the smoking device 1 of the second embodiment, when the cleaning portion 40 can not reciprocate due to any reason, the rear end cap 80 is removed and the leg 46 is pushed to the tip side by a rod or the like. For example, the cleaning unit 40 can be forcibly moved.

  Next, a smoking device 1 according to a third embodiment of the present invention will be described with reference to FIG. In addition, about the part, member, and structure which are the same as or similar to the smoking tool of 2nd embodiment, description is abbreviate | omitted, and only a different point from 2nd embodiment is demonstrated.

  In the smoking tool 1, the legs 46 of the cleaning unit 40 are set thicker than in the second embodiment. In this way, the weight of the leg 46 is increased, so that the leg 46 can bear part or all of the weight region 42. As a result, it is possible to reduce the volume on the main body side of the cleaning unit 40 excluding the leg 46, and hence the axial direction can be made compact. As a result, the overall axial length of the smoking device 1 is reduced as compared to the first and second embodiments.

  Note that, as a modification of the third embodiment, as shown in FIGS. 16 and 17, the radially extending clogs 47 are connected to the vicinity of the rear end of the legs 46, and the clogs 47 are held by a holding cylinder It is preferable to make it project outside from 10 and to provide the operation part 120 in the tip. When the user slides the operation unit 120 in the axial direction, the cleaning unit 40 moves in the axial direction via the legs 46 in conjunction with this. As a result, since the heater unit 20 can be cleaned manually without vibrating the holding cylinder 10, the weight of the leg 46 can be reduced. In the holding cylinder 10, an axial slit 10S is formed to avoid interference with the sliding clogs 47. Specifically, the operation portion 120 and the clogs portion 47 are integrally formed, and the clogs portion 47 is inserted into the interior from the slit 10S, and the deepest end of the clogs portion 47 is formed on the leg portion 46. Insert into the opening 46A. As a result, the clogs 47 and the legs 46 are internally connected. At this time, a barbed projection 47A is formed on the side surface of the clogs 47, and the barbed projection 47A is forcibly pushed into the slit 10S at the time of insertion. After the insertion, the clogged projection 47A is obstructive to prevent the clogs 47 from easily coming off the slit 10S. At the time of disassembling, if the clogs 47 are forcibly pulled, the hooks 47A and the slits 10S are unhooked and can be removed from the slits 10S. In addition, in the operation unit 120, a notch 120A for avoiding interference with the external operation unit 11B is formed as necessary.

  Next, a smoking device 1 according to a fourth embodiment of the present invention will be described with reference to FIG. In addition, about the part, member, and structure which are the same as or similar to the smoking tool of 2nd embodiment, description is abbreviate | omitted, and only a different point from 2nd embodiment is demonstrated.

  As compared with the second embodiment, an engagement protrusion 46A is provided at the rear end of the leg 46 of the cleaning portion 40 in a protruding manner. The engagement projection 46A can be axially engaged with the leg opening 75B. Therefore, as shown in FIG. 18B, when the cleaning unit 40 moves to the tip side, the engagement protrusion 46A and the leg opening 75B are engaged, and the cleaning unit 40 is stopped. Since the stopper 48 for cleaning parts shown in 1st embodiment becomes unnecessary in connection with this, the inner side cylinder 70 is extended integrally to the step 12 for engaging part control. In addition, although the compression spring 65 is provided in FIG. 18, this can also be abbreviate | omitted.

  Next, a smoking device 1 according to a fifth embodiment of the present invention will be described with reference to FIG. 19 (A). In addition, about the part, member, and structure which are the same as or similar to the smoking article of 4th embodiment, description is abbreviate | omitted and it demonstrates only to a different point from 4th embodiment.

  Compared with the fourth embodiment, a relief space 90 for avoiding contact with the heater unit 20 is formed in the inside of the main body of the cleaning unit 40. The relief space 90 reaches the rear end of the main body of the cleaning unit 40. As a result, the front end surface of the main body of the cleaning unit 40 contacts the heater unit 20 and can be cleaned, but the rear end surface does not contact the heater unit 20 due to the relief space 90.

  The relief space 90 can reduce the sliding resistance when the cleaning unit 40 reciprocates. Moreover, since the contact area with the heater part 20 decreases, it can suppress that the heat of the heater part 20 transfers to the board | substrate 50 side. At the same time, since the air warmed in the relief space 90 enters the tobacco side through the through holes 44 at the time of suction, it is also possible to enhance the suction efficiency. In order to heat the air of the relief space 90 effectively, it is desirable to expand the heating area 22 of the heater unit 20 to the inside of the relief space 90.

  In the smoking tool 1, the leg 46 is linearly guided by the leg opening 75B, so the posture of the cleaning unit 40 is always stable. Along with this, as shown in FIG. 19B, the outer edge of the tip end surface of the cleaning portion 40 can be separated from the inner wall of the inner cylinder 70. That is, an annular second relief space 92 is also formed around the distal end surface of the cleaning unit 40. In this case, the heat of the front end surface of the cleaning unit 40 is not easily transmitted to the inner cylinder 70. In addition, there is a possibility that the residue Z of cigarette may enter into the second relief space 92, but if the outer peripheral edge is made to approach the inner cylinder 70 at the base end side of the main body of the cleaning unit 40, the cleaning It becomes possible.

  Next, a smoking device 1 according to a sixth embodiment of the present invention will be described with reference to FIG. In addition, about the part, member, and structure which are the same as or similar to the smoking tool of 1st embodiment, description is abbreviate | omitted, and only a different point from 1st embodiment is demonstrated.

  The smoking tool 1 has a structure without the cleaning unit. Therefore, the bottom portion 75 of the inner cylinder 70 is thick in the axial direction so as to compensate for the space of the cleaning portion. As described above, when the bottom portion 75 is thick and the heater portion 20 is held by the opening 75A, the posture of the heater portion 20 can always be stabilized. The bottom portion 75 is not limited to being integrated with the inner cylinder 70, and may be separate.

  The opening 75A formed in the bottom portion 75 preferably holds at least a part of the heating region 22 on the tip side of the heater unit 20. That is, the tip end surface of the bottom portion 75 preferably reaches the heating area 22. As a result, the axial distance from the connection terminal portion 35 or the stopper portion 30 to the holding portion of the heater portion 20 by the opening 75A (hereinafter, the distance between the holding portions) becomes long, and the posture of the heater portion 20 is stabilized. As a result, it is possible to enhance the durability against the bending moment acting on the heater unit 20 when inserting the cigarette. In addition, it is possible to heat sufficiently by the heating area 22 up to the tip of the cigarette to be inserted, so that no tobacco leaves are wasted.

  In order to stabilize the posture of the heater unit 20, it is preferable to secure the axial length of the non-heated region 24 to a certain extent. On the other hand, it is also possible to shorten the axial length of the non-heated region 24 and shorten the distance between holdings, and since the heater portion 20 tends to be oblique with respect to the axis of the holding cylinder 10 , It can absorb bending moment moderately.

  Furthermore, as a modified example of the smoking tool 1 according to the sixth embodiment, as shown in FIG. 20 (B), it is preferable to form a relief space 90 in the bottom portion 75. The relief space 90 reduces the contact area between the bottom portion 75 and the heater portion 20. As a result, the heat of the heater unit 20 can be suppressed from being released wastefully through the bottom portion 75.

  Preferably, the relief space 90 reaches the substrate 50 side. That is, the front end surface of the bottom portion 75 holds the heater unit 20, but the rear end surface does not contact the heater unit 20 due to the relief space 90. On the other hand, in order to cause the bottom portion 75 to function as the front side engaging portion 78, only a part of the bottom portion 75 may be engaged with only the stopper portion 30.

  The air warmed in the escape space 90 may be made to enter the side of the cigarette through the opening 75A at the time of suction to enhance the suction efficiency. In order to heat the air of the relief space 90 effectively, it is desirable to expand the heating area 22 of the heater unit 20 to the inside of the relief space 90.

  The shapes of the bottom portion 75 and the front side engaging portion 78 are not limited to those shown in FIG. 20, and can be variously modified. For example, as in the modification shown in FIG. 21, the bottom portion 75 for holding the heater portion 20 may be thin, and the position fixing leg portion 93 may extend from the bottom portion 75 toward the rear end side. When the position fixing leg portion 93 abuts on the substrate restricting step portion 88, the positioning of the rear end side of the bottom portion 75 is realized.

  At this time, as shown in FIG. 21B, the clip means 94 may be provided in the connector portion 52 of the substrate 50. The clip means 94 functions as the front side engaging portion 78 of the present invention and engages with the stopper portion 30 in the axial direction. As a result, it is possible to prevent the heater unit 20 from falling to the tip side. When the clip means 94 is opened, as shown in FIG. 21C, the connection terminal portion 35 can be pulled out.

  Next, a smoking device 1 according to a seventh embodiment of the present invention will be described with reference to FIG. In addition, about the part, member, and structure which are the same as or similar to the smoking tool of 1st embodiment, description is abbreviate | omitted, and only a different point from 1st embodiment is demonstrated.

  In the smoking device 1, the holding cylinder 10 is provided with a detachable tip cap 77 in the vicinity of the tip. Here, an external thread is formed on the outer peripheral surface near the end of the holding cylinder 10 excluding the end cap 77, and an internal thread is formed on the inner peripheral surface of the end cap 77. By screwing an external screw and an internal screw, both are connected. The tip end cap 77 is annular, and the tip end opening 10A and the engagement portion restricting step 12 are formed. When the tip end cap 77 is removed, the engagement portion regulating step 12 is separated from the remaining portion of the holding cylinder 10 indirectly.

  When assembling the smoking tool 1, the tip end cap 77 is removed in advance, and at least the front side engaging portion 78 and the heater portion 20 are axially inserted from the tip end side of the holding cylinder 10 toward the rear end side. Just do it. Specifically, the internal heating module M is assembled in advance using the substrate 50, the connection terminal portion 35, the stopper portion 30, the heater portion 20, the inner cylinder 70 (front side engaging portion 78), the compression spring 60 and the cleaning portion 40. The internal heating module M is inserted from the tip end side of the holding cylinder 10. Thereafter, after the elastic ring 18 and the stopper for cleaning portion 48 are set, the tip end cap 77 is screwed to the holding cylinder 10.

  As described above, in the smoking tool 1 of the present embodiment group, the inner cylinder 70 having high thermal insulation property is set independently to the holding cylinder 10, and the case where the cigarette is accommodated in the inner cylinder 70 is considered. Although illustrated, the present invention is not limited thereto. When the heat insulation of the holding cylinder 10 is high, the inner cylinder 70 can be omitted.

  Moreover, although this heater part 20 illustrated the case where it becomes belt shape, this invention is not limited to this, Various shapes, such as columnar shape, rod shape, and a cylindrical shape, are employable.

  Furthermore, although the case where the compression spring 60 is provided as the biasing member is illustrated in the present smoking tool 1, the present invention is not limited thereto, and other elastic bodies such as a tension spring, a plate spring, rubber and the like may be employed. good.

  Furthermore, although the case where the connector portion 52 is mounted on the substrate 50 is illustrated in the smoking tool 1, the present invention is not limited to this, and the connector portion 52 and the substrate 50 are separate, for example, flexible wiring And the like may be electrically connected. However, when the connector portion 52 is fixedly installed on the substrate 50, the connector portion 52 can be indirectly positioned by fixing the substrate 50, so the internal structure can be simplified.

  In addition, the smoking article of the present invention is not limited to the above-mentioned embodiment, and it goes without saying that various modifications can be added without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 smoking tool 10 holding cylinder 10A tip end opening 10B rear end opening 10C cigarette accommodation space 10D substrate accommodation space 10E heater portion mounting space 11A connector opening 11B external operation portion 11C light transmission portion 12 engagement portion regulating step 12A engagement Surface 14 Recess for substrate 14A Positioning surface 16 Elastic plate 18 Elastic ring 20 Heater part 22 Heating area 22A High temperature wiring element 24 Non heating area 24A Low temperature wiring element 30 Stopper part 30A Tip side engagement surface 35 Connection terminal part 39 Rear engagement Part 40 Cleaning part 40A First projection 40B Second projection 42 Weight area 44 Through hole 46 Leg 46A Engaging projection 48 Stopper for cleaning part 49 Stepped part for cleaning part 50 Substrate 52 Connector part 53 Temperature control circuit 54 Power receiving connector 55 Switch 70 Inner cylinder 73 Tube portion 75 Bottom portion 75A Opening 75B Leg opening 77 Tip cap 8 other party side engaging portion 78B rear side engagement surface 80 proximal end cap 88 substrate restricting stepped portions 90 escape space 92 second relief space 93 position fixing legs 94 clip means M internal heating module T tobacco Z residue

Claims (22)

A cylindrical holding cylinder into which cigarettes are inserted from the front end side to the rear end side;
A heater portion disposed inside the holding cylinder and extending in the axial direction of the holding cylinder to heat the cigarette;
A connection terminal unit provided integrally on the proximal end side of the heater unit and supplying power to the heater unit;
A connector disposed inside the holding cylinder and connected to the connection terminal to supply power to the heater;
A heater fixing structure provided inside the holding cylinder, capable of axially fixing the heater portion at the time of assembly, and capable of opening the heater portion at the time of disassembly;
A smoking article characterized by comprising. As the heater fixing structure,
A front side engaging portion provided inside the holding cylinder and axially engaged with the heater portion to restrict movement of the heater portion toward the tip end;
A rear side engaging portion provided inside the holding cylinder and axially engaged with the heater portion to restrict movement of the heater portion to the rear side;
Characterized in that,
The smoking article according to claim 1. At least one of the front side engaging portion and the rear side engaging portion in the heater holding structure is dissociable in an axial direction or a radial direction.
The smoking device according to claim 2. The heater fixing structure includes a stopper portion integrally provided on the base end side of the heater portion to form a step in the radial direction,
The front side engaging portion axially engages with the front end side engaging surface of the stopper portion.
The smoking article according to claim 2 or 3. At least one of the front side engaging portion and the rear side engaging portion is detachably attachable to the holding cylinder.
The smoking article according to any one of claims 2 to 4. The connector also functions as the rear side engaging portion in the heater fixing structure.
The smoking article according to any one of claims 2 to 5. It further comprises a substrate on which the connector is mounted,
The holding cylinder is characterized by including a substrate regulating step portion which regulates movement of the substrate toward the rear end side in the axial direction.
A smoking article according to claim 6. The substrate regulating step is removable from the remaining portion of the holding cylinder, and by removing the substrate regulating step, at least the connector, the substrate, and the heater are axially moved from the holding cylinder. Characterized in that it can be taken out,
The smoking article according to claim 7. The holding cylinder is characterized by including an engaging portion restricting step portion which restricts the movement of the front side engaging portion toward the tip end in the axial direction.
The smoking article according to any one of claims 2 to 8. The engagement portion regulating step portion is detachable with respect to the remaining portion of the holding cylinder,
By removing the engagement portion restricting step portion, at least the front side engagement portion and the heater portion can be taken out from the holding cylinder in the axial direction.
The smoking article according to claim 9. It is a bottomed cylindrical member disposed inside the holding cylinder, and is provided with an inner cylinder into which the cigarette can be inserted from its own opening,
The bottom of the inner cylinder is formed with an opening into which the heater portion is inserted,
The bottom portion also serves as at least a part of the heater fixing structure.
The smoking article according to any one of claims 1 to 10. A cleaning unit is provided, which is disposed to be reciprocably movable in the axial direction while approaching or abutting on the outer peripheral surface of the heater unit.
A smoking article according to any of the preceding claims. The cleaning unit has a weight area having a predetermined weight,
By vibrating the holding cylinder in the axial direction, the cleaning portion reciprocates in the axial direction due to the inertia of the weight region.
A smoking article according to claim 12. In the entire area of the reciprocation stroke, the entire cleaning unit is accommodated inside the holding cylinder.
The smoking article according to claim 12 or 13. When the heater unit is viewed sideways, at least a part of the cleaning unit overlaps the heater unit over the entire area of the reciprocation process.
The smoking article according to any one of claims 12 to 14. The tip of the heater portion is protruded with respect to the cleaning portion throughout the reciprocating movement stroke.
The smoking article according to claim 15. It has a biasing means which biases said cleaning part to the tip side,
The smoking article according to any one of claims 12 to 16. The biasing means biases the cleaning portion toward the distal end side only during a partial stroke on the proximal side during the reciprocating movement stroke.
A smoking article according to claim 17. An operation unit is provided on the rear side of the cleaning unit,
When the user moves the operation unit in the axial direction, the cleaning unit moves in the axial direction in conjunction with the movement of the operation unit.
The smoking article according to any one of claims 12 to 17. A cylindrical holding cylinder into which cigarettes are inserted from the front end side to the rear end side;
A heater portion disposed inside the holding cylinder and extending in the axial direction of the holding cylinder to heat the cigarette;
And a cleaning unit disposed so as to reciprocate in the axial direction while approaching or abutting on the outer peripheral surface of the heater unit,
The cleaning unit has a weight area having a predetermined weight,
The smoking article characterized in that the cleaning portion reciprocates in the axial direction by the inertia of the weight region by vibrating the holding cylinder in the axial direction. A cylindrical holding cylinder into which cigarettes are inserted from the front end side to the rear end side;
A heater portion disposed inside the holding cylinder and extending in the axial direction of the holding cylinder to heat the cigarette;
And a cleaning unit disposed so as to reciprocate in the axial direction while approaching or abutting on the outer peripheral surface of the heater unit,
When viewing the heater unit sideways, at least a part of the cleaning unit overlaps the heater unit over the entire area of the reciprocating movement stroke. A cylindrical holding cylinder into which cigarettes are inserted from the front end side to the rear end side;
A heater portion disposed inside the holding cylinder and extending in the axial direction of the holding cylinder to heat the cigarette;
A cleaning unit disposed so as to reciprocate in the axial direction while approaching or abutting on the outer peripheral surface of the heater unit;
And an operation unit provided on the rear side of the cleaning unit,
When the user moves the operation unit in the axial direction, the cleaning unit moves in the axial direction in conjunction with the movement of the operation unit.

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