JP3880594B2 - Cartridge lighter - Google Patents

Description

  The present invention relates to a gas lighter, and more particularly, to a cartridge lighter in which a lower structure including a fuel tank is detachably attached to an upper structure including a flame nozzle and an ignition mechanism.

JP 2001-12737, JP2003-240238A.

  Patent Document 1 is equipped with an upper structure including an opening / closing lid and a flame nozzle in an inner frame, a fuel tank is detachably coupled to the upper structure, and a fuel tank exchangeable gas is inserted into the outer case. A lighter is listed. In this lighter, the fuel tank cannot be removed from the upper structure unless the outer case is removed from the lighter and the fuel tank coupled to the upper structure is exposed. Cited Document 2 describes an assembly of a gas lighter case and a gas lighter in which a finished product lighter is completely housed in a housing with an open / close lid, and the lighter can be ignited by opening the open / close lid. It is possible to replace the lighter by opening the opening / closing lid of the housing and removing the lighter. However, the fuel tank cannot be detached from the ignition mechanism in the lighter.

  In the gas writer, the superstructure including the flame nozzle and the ignition mechanism is various. However, the lower structure including the fuel tank is often inserted into the outer case, and there is no variety of mechanisms. In order to diversify the types of products, we have a variety of superstructures. However, if the substructure is used in common for many product types, various products can be easily manufactured, and the assembled lighter is defective. If the mechanism needs to be adjusted, the upper structure and the lower structure can be separated and the defective one can be replaced or adjusted separately, making it easier to assemble and adjust the lighter. Goes up.

  The first object of the present invention is to provide a cartridge lighter in which the lower structure can be easily attached to and detached from the upper structure, and secondly, to provide a cartridge lighter in which one type of lower structure can be applied to each of various upper structures. The purpose.

(1) A flame nozzle (6), an ignition mechanism (8) for igniting the fuel gas emitted from the flame nozzle, a fuel gas supply pipe (5, 4) having one end communicating with the flame nozzle, and a user performing a fuel gas release operation An upper mechanism (20) including an external operating element (15) for performing the operation, and an outer case (1) having the upper mechanism mounted on the upper wall and having an upper end closed and a lower end opened , and the fuel gas supply pipe The upper end of the opening (4) at the other end of (5, 4) and the lower end of the external operation element (15) are fixed in the front / rear and left / right (x, y) directions inside the outer case (1). Unit (20); and
A fuel discharge valve and a fuel tank (21) having an inner nozzle (23) to which fuel gas is supplied by opening the fuel discharge valve, and an internal for opening the fuel discharge valve mounted on the fuel tank (21) An operating element (26), a lock case (27) attached to the bottom of the fuel tank (21) , which can be inserted into the lower opening (18) of the outer case (1), and a lower side of the lock case and the lock case (27) a bottom plate for closing the lower opening (18) of the outer case (1) (2 8), and are mounted on said lock casing (27) moves to the release position and the engagement position for engaging the outer casing (1) The inner nozzle (23) and the inner operating element (26) are respectively inserted into the outer case (1) when inserted into the lower opening (18) of the outer case (1). ) the other end of the opening of the fuel gas supply pipe (5,4) (4) and located in the position of the lower end of the external operating element (15) in, move the locking member in the engaged position Is integrally fixed to the outer casing (1) by the locking operation, it is possible to extract from the outer case by the release operation of moving the locking member to the release position, the lower unit (40);
Cartridge lighter.

  In addition, in order to make an understanding easy, the code | symbol of the response | compatibility or equivalent element or part which is shown in a parenthesis is added as an illustration for reference. The same applies to the following.

  According to this, the lower unit (40) can be extracted from the lower opening (18) of the case (1) of the upper unit (20) by releasing the lock member 31. When the lower unit (40) is inserted into the lower opening (18) of the case (1) of the upper unit (20), the inner nozzle (23) and the internal operator (26) of the lower unit (40) are automatically The lower unit (40) is located at the above-mentioned position of the opening (4) at the other end of the fuel gas supply pipe (5, 4) of (20) and the lower end of the external operation element (15), and locks the locking member. ) Is integrated into the upper unit (20). Therefore, the attachment / detachment of the lower structure with respect to the upper structure is simplified.

  When the superstructure including the flame nozzle and the ignition mechanism has a variety of upper units, all types of upper units are connected to the opening (4) at the other end of the fuel gas supply pipe (5, 4) and the external operating element (15). The same type of lower unit (40) can be fitted by fixing the lower end in the same position in the case. That is, one type of lower structure can be applied to each of various upper structures.

  (2) The opening (4) portion at the other end of the fuel gas supply pipe (5, 4) is a flexible tube; a taper entering the opening (4) at the upper end of the inner nozzle (23) The cartridge writer as described in (1) above. According to this, when attaching the lower unit (40) to the upper unit (20), the upper end of the inner nozzle (23) smoothly enters the flexible tube, and the inner nozzle (23) has a little position and size. Even if there is an error, the flexible tube absorbs it, so that the connection of the inner nozzle (23) to the fuel gas supply pipe (5, 4) is simple and accurate.

  (3) The opening part of the other end of the fuel gas supply pipe (5, 4) is a flexible tube (4); the upper end of the inner nozzle (23) is smaller than the inner diameter of the opening (4) The cartridge writer according to the above (1) or (2), which has an outer diameter and a flange on which the lower end surface of the tube hits. According to this, when the lower unit (40) is attached to the upper unit (20), the upper end of the inner nozzle (23) smoothly enters the flexible tube, and the flange is pressed against the lower end surface of the tube. Even if there is a slight position and dimensional error in the inner nozzle (23), the flexible tube absorbs it, so it is easy to connect the inner nozzle (23) to the fuel gas supply pipe (5, 4). And accurate.

  (4) The inner nozzle (23) is a part of the movable valve of the fuel discharge valve of the fuel tank (21), and is opened when the inner nozzle (23) is pulled up; ) Is a lever using a fulcrum with one end engaged with the inner nozzle (23), and the other nozzle opposite to the one end is pushed down with respect to the fulcrum, and the inner nozzle (23) is pulled up; The cartridge writer according to any one of (1) to (3) above, wherein the lower end of the operation element (15) is lowered and the other end of the internal operation element (26) is pressed down. According to this, the external operation element (15) only needs to move up and down with respect to the internal operation element (26), and a lever that uses a fulcrum, that is, a member for connecting the internal operation element (26) to the external operation element (15) is required. do not do. When the fuel tank (21) of the lower unit (40) is inserted into the case (1) of the upper unit (20), the other end of the lever using the fulcrum is automatically positioned at the lower end of the external operation element (15). Therefore, the arrangement of the internal manipulator (26) with respect to the external manipulator (15) is simple and accurate.

(5) The lock member (31) is mounted on the lock case (27) so as to be rotatable about a vertical axis, and is formed in engagement grooves (16a, 16b) carved on the inner wall surface of the outer case (1). It is a cam plate having claw portions (31b, 31c) to be fitted, and the claw portions (31b, 31c) are fitted into and removed from the engagement grooves (16a, 16b) by forward and reverse rotation. A cartridge writer according to any one of (1) to (4) above; According to this, the lock unit (31) can be locked (unlocked) and unlocked (unlocked) with respect to the upper unit (20) by forward and reverse rotation driving of the upper unit (20). The detachment of the lower unit (40) with respect to 20) is easy.

  (6) The claw portions (31b, 31c) have projections (31b, 31c) protruding in the vertical direction that fit into the engagement grooves (16a, 16b); the cartridge lighter according to (5) above . According to this, since the contact of the claw portions (31b, 31c) with the groove walls of the engagement grooves (16a, 16b) becomes point contact by the protrusions (31b, 31c), the lock (detention) and the unlock (retention) The forward / reverse rotation of the lock member (31) for releasing the release is smooth.

(7) The cartridge lighter according to (5) or (6), wherein the lock member (31) is coupled to the lock case (27) through a resilient member (30). According to this, even against the bottom plate (28) in case the lower end, in a manner to compress the resilient member (30), engaging grooves (16a, 16b) the vertical position of the locking member (31) against Can be matched. After locking, elastic force is applied to the bottom plate ( 28) by the elastic member (30). As a result, the bottom plate ( 28) does not rattle against the case (1).

  (8) The fuel tank (21) has a pipe (43) penetrating the fuel tank in the vertical direction and having upper and lower ends open to the outside of the tank; any one of (1) to (7) above Cartridge lighter. According to this, the flint ignition mechanism assumes that the flint (42) is in a vertical posture, and the flint cylinder (8) can be extended to the opening portion of the bottom plate (28) under the lighter through the pipe (43). .

  Other objects and features of the present invention will become apparent from the following description of embodiments with reference to the drawings.

  FIG. 1 shows a cartridge lighter of the first embodiment. First, the configuration of the upper unit 20 will be described. The lighter case 1 has a substantially rectangular shape with the upper end closed and the lower end opened. A suspension leg 2 is provided inside the case 1, and the upper end of the suspension leg 2 is fixed to the upper wall of the case 1. The lower end of the suspension leg 2 is bent in the L direction, and the relay pipe 3 extending in the vertical direction passes through the bent and horizontal portion (parallel to the left-right direction y), and is fixed to the horizontal portion. The upper end of the flexible tube 4 is attached to the lower end of the relay tube 3 so that the lower end of the relay tube 3 is press-fitted into the upper end of the flexible tube 4. The rear end of the connecting tube 5 is attached to the upper end of the connecting tube 3 such that the upper end of the connecting tube 3 is press-fitted into the rear end of the connecting tube 5. The tip of the connecting tube 5 is attached to the lower end of the flame nozzle 6 that passes through the upper wall of the case 1 and is fixed to the upper wall, and the lower end of the flame nozzle 6 is pressed into the tip of the connecting tube 5. . A gas discharge port (not shown) opened at the upper end surface of the flame nozzle 6 is covered with a cap 10.

  A file rotation wheel 7 is supported by a vertical pin (parallel to the z direction) (not shown) supported by the upper wall of the case 1 and a flint cylinder 8 (located behind the arm 11) so as to be rotatable about the pin. . The file turning wheel 7 is integrally and continuously ignited, and the left end portion of the flint cylinder 8 that supports the vertical pin that serves as the turning shaft of the turning wheel 7, the firing filed wheel that is integrally continuous with the file turning wheel 7, The flint (ignition material) supported by the flint cylinder 8 and pressed against the ignition file ring is covered with a cap 10 having a lower opening.

  The cap 10 is fixed to the left end of the arm 11. The right end of the arm 11 is supported by an arm trunk 12 so as to be able to stand up and rotate around a pin 13. The arm trunk 12 is hollow, and a toggle link extends through the upper wall of the case and is attached to the upper wall of the case. The right end of the arm 11 extends to the tip of the toggle link. The toggle cam in the part is engaged. The toggle link applies a pushing force to the cam surface of the toggle cam of the arm 11 under the action of the compression coil spring inside the cylinder 14, which tries to rotate the cam counterclockwise around the pin 13. The cap 10 is forced to the closed position shown in FIG.

  When the user lifts the cap 10 and raises the arm 11, when the arm 11 is inclined at about 45 degrees with respect to the upper end surface of the case, the toggle cam surface exceeds the dead center of the toggle link. Is applied from the toggle link, and the arm stands up to an inclination of about 60 degrees (cap release state). When the user tilts the arm 11 to an inclination of about 45 degrees, the toggle cam surface exceeds the dead center of the toggle link, so that a counterclockwise rotational force is applied to the arm 11 from the toggle link, and the arm 11 is in a horizontal posture. Return to (cap closed state: FIG. 1). In conjunction with the tilting of the link arm that causes the cap arm 11 to rise and fall, the lifting rod 15 moves up and down.

  Next, the configuration of the lower unit 40 will be described. When viewed in the y direction, a vertical U-shaped pin frame 22 is fixed to the upper surface of the fuel tank 21, and an inner nozzle 23 passes through the pin frame 22 and the tank upper wall. The upper end of the inner nozzle 23 has a tapered surface that penetrates into the lower end opening of the tube 4. There is a flange below the taper surface (see FIG. 3 for details), and this flange is in contact with the lower end of the tube 4. A gas discharge lever 26 is mounted on one of the pins 24 and 25 spanning the two opposing walls of the pin frame 22 so as to be rotatable about the pin 24. The left end of the lever 26 is a flange of the inner nozzle 23. The right end is located directly below the lower end of the lifting rod 15.

  Thereby, the lever 26 is rotated clockwise by the lowering of the elevating rod 15 when the cap 10 is opened (the arm 11 stands up), and the inner nozzle 23 is pushed up. The inner nozzle 23 is a part of an on-off valve for gas release installed in the fuel tank 21. When the inner nozzle 23 is pulled up, the valve is opened, and the fuel gas in the fuel tank 21 passes through the inner nozzle 23 to Go outside. This fuel gas blows upward from the flame nozzle 6 through the tubes 4 and 5. When the user turns the file turning wheel 7 to generate flint sparks, the fuel gas emitted from the flame nozzle 6 becomes a flame.

  Female screw sleeves 37 and 38 are fixed to the lower bottom of the fuel tank 21 by brazing, and a lock case 27 and a bottom plate 28 are fixed to these sleeves 37 and 38. A lock plate 31 is mounted on the lock case 27 so as to be rotatable about a vertical axis (parallel to the z direction). The lock plate 31 is in a posture indicated by a dotted line in FIG. 2A in the locked state, and the claw portions (31b, 31c: FIG. 5) of the lock plate 31 are engaged with the engagement grooves (16a on the inner surface of the case 1). 16b: FIG. 2 and FIG. 3), the fuel tank 21 cannot move relative to the case 1 in the longitudinal direction z. Note that 39a shown in FIG. 2 is an injection valve for injecting the fuel gas liquid into the tank, and 39b is an adjustment ring for adjusting the gas discharge flow rate that determines the flame length.

  Next, an operation for separating the lower unit 40 from the upper unit 20 will be described. Reference is first made to FIG. When the lock cap 29 that engages with the lock plate 31 and is partially exposed on the lower surface of the bottom plate 28 is rotated counterclockwise until the lock plate 31 cannot be rotated against the fuel flow rate adjusting cylinder (b) in FIG. ), The lock plate 31 indicated by the dotted line protrudes from the engagement grooves 16a and 16b on the inner surface of the case, and is movable in the longitudinal direction z with respect to the case 1. In this unlocked (unlocked) state, the bottomed round holes 29a and 29b on the lower surface of the lock cap 29 are aligned with the bottomed round hole 28b which is an unlock position index of the bottom plate 28 ((b) in FIG. 2). ).

  In this unlocked state, the nail of one finger of both hands is inserted into the nail holes 17a and 17b of the case 1 to support the case 1, and the bottom plate 28 is grasped and pulled by the other hand, whereby the lower unit 40 is moved to the upper unit. As shown in FIG. 3, the upper unit 20 and the lower unit 40 are completely separated from each other.

  When the units 20 and 40 are assembled together, the lower unit 40 (the fuel tank 21) is inserted into the upper unit 20 (the case 1), the lock cap 29 is rotated clockwise, and the lock plate 31 is the fuel flow rate adjusting cylinder. Turn until you can't turn it. When it cannot be turned, as shown in FIG. 2A, the lock plate 31 indicated by a dotted line is fitted in the engaging grooves 16a and 16b on the inner surface of the case, and is longitudinal with respect to the case 1. z cannot be moved. In this locked (detained) state, the bottomed round holes 29a and 29b on the lower surface of the lock cap 29 are aligned with the bottomed round hole 28a which is a lock position index of the bottom plate 28 ((a) of FIG. 2).

  FIG. 4 is an exploded view of a bottom assembly that is a combination of the lock case 27 and the bottom plate 28. As shown in FIG. 5, the lock plate 31 has an axial hole 31 a having an oval shape, and projections 31 b and 31 c protruding in the z direction (direction perpendicular to the paper surface of FIG. 5B) are formed on the claw portion. The protrusion 31d for rotation prevention is formed integrally and continuously. The lock cap 29 shown in FIG. 4 is a flat-cut outer peripheral surface whose outer shape is perfectly engaged with the oval shaft hole 31a of the plate 31, and has a round hole inside and a female screw hole at the bottom of the round hole. A bottomed round hole 29a, 29b (FIG. 2) into which a pair of pins of a turning tool is inserted is engraved on the lower end surface. 31 is a ring-shaped rubber plate, 32 is a washer, 33 is a hollow shaft with a flange, and 34 to 36 are screws (male threads).

  The trunk portion of the lock cap 29 having the planing outer peripheral surface is passed through the central holes of the rubber plate 30, the lock plate 31, and the washer 32, and then passed through the cylindrical portion of the hollow shaft 33 with a hook in the through hole of the lock case 27. The cylindrical portion is inserted into the round hole of the lock cap 29, and the screw 34 is passed through the cylindrical portion of the hooked hollow shaft 33 and screwed into the female screw hole at the bottom of the round hole of the lock cap 29. As a result, the rubber plate 30, the lock plate 31, the washer 32 and the lock case 27 are laminated in a sandwich shape between the flange of the lock cap 29 and the flange of the hollow shaft 33, and these are integrated with the screw 34. The lock cap 29 can be rotated around the cylindrical portion of the hollow shaft 33 with the flange. With respect to this rotation, the lock plate 31 is engaged with the planing outer peripheral surface of the lock cap 29, so that the lock plate 31 rotates in the same manner as the rotation of the lock cap 29. The lower end of the lock cap 29 is received in the central opening of the bottom plate 28 and the lock case 27 is fitted to the bottom plate 28, and then the screws 35 and 36 are passed through the bottom plate 28 and the lock case 27 to the lower bottom of the fuel tank 21. By screwing into certain female screw sleeves 37, 38 (FIGS. 1, 3), the lock case 27 is assembled integrally with the bottom plate 28 and is assembled integrally with the tank 21.

  6 (a) shows the appearance of the lighter shown in FIG. 1, and FIG. 6 (b) shows the appearance of the cap 10 raised in use. In this use state, the fuel gas flows out from the flame nozzle 6, and when the user turns the file turning wheel 7, the file wheel 41 rotates, and the flint pressed against the file wheel 41 from the left end of the flint cylinder 8 sparks. By this spark, the fuel gas flowing out from the flame nozzle is ignited and becomes a flame.

  FIG. 7 shows a second embodiment. In the second embodiment, the cap 10 has a substantially rectangular shape with an open bottom and covers almost the entire upper end surface of the case 1, but the front wall of the circumferential surface of the file turning wheel 7 is exposed. 7 and the circumferential surface of the file turning wheel 7 is exposed about half a circle even when the cap is closed as shown in FIG. The file turning wheel 7 is a case 1 and is mounted so as to be rotatable about a horizontal axis (parallel to the y direction). A flint 42 pushed out from the upper end of the flint cylinder 8 is in pressure contact with the peripheral surface of the file ring 41 connected to the file rotating wheel 7. The flint cylinder 8 extends in the longitudinal direction z and its lower end surface is exposed on the lower surface of the bottom plate 28. A pipe 43 through which the cylinder 8 passes penetrates the fuel tank 21 in the vertical direction, and upper and lower ends thereof are brazed to the upper wall and the lower wall of the tank 21.

  FIG. 8A shows the lower surface of the bottom plate 28. The lock case 27 and the bottom plate 28 of the second embodiment have openings through which the flint cylinder 8 passes. The combination of the lock case 27, the bottom plate 28 and the lock plate 31 is the same as that of the first embodiment. By rotating the lock plate 31 to the unlocking position shown in FIG. Can be removed from. Other structures are the same as those of the first embodiment shown in FIG.

  FIG. 9 shows one modification of the second embodiment. In this modified example, the flame nozzle 6 is close to the left end side of the case 1, but the lower unit 40 has the same structure and dimensions as those of the second embodiment shown in FIG. The flint cylinder 8 of the upper unit 20 is bent with a curvature that allows the flint and the holding coil spring to pass through easily so as to go to the position of the pipe 43 of the tank 21. Since the other structure is the same as that of the second embodiment shown in FIG. 7, the lower unit 40 of the second embodiment is adapted to the upper unit in which the flint cylinder 8 extends vertically to the bottom plate 28. As in one embodiment, the upper unit of the embodiment in which the flint cylinder 8 is outside the case 1 is also applicable. In this case, it is preferable to replace only the bottom plate 28 of the lower unit 40 with one having no opening for exposing the lower end of the flint cylinder 8.

  FIG. 10 (a) shows the appearance of one embodiment of a lighter equipped with the lower unit 40 of the above modification of the second embodiment, and FIG. 10 (b) shows the appearance in use. This upper unit has the same structure as the upper unit 20 shown in FIG.

  FIG. 11 (a) shows the appearance of another embodiment of the lighter equipped with the lower unit 40 of the above-mentioned modification of the second embodiment, and FIG. 11 (b) shows the appearance of its use state. Show. The upper unit of this lighter is such that the rotation center of the file rotating wheel 7 is parallel to the thickness direction of the case 1 (the x direction in FIG. 9), and the flame nozzle 6 is disposed at the approximate center in the left-right direction of the case 1. It is.

  FIG. 12A shows the appearance of still another embodiment of the lighter equipped with the lower unit 40 of the above-described modification of the second embodiment, and FIG. Indicates. The upper unit of this lighter is equipped with the case 1 in this order from the left to the right, the flame nozzle, the file rotating wheel 7 and the gas release button 44. The flame nozzle is surrounded by a windshield 45 in three directions. By rotating the file turning wheel 7 with the thumb, the spark generated by the rotation of the file wheel 41 is released into the windshield, and the gas raising button 44 following the turning operation depresses the lifting rod inside the case 1 (see FIG. 9). When a rod corresponding to 15 shown in the figure is pushed down, a flame stands from the flame nozzle surrounded by the windshield 45.

  The lower unit 20 shown in FIG. 7 can be used in combination with the upper unit shown in FIGS. 6, 10, 11 and 12. That is, it adapts to various superstructures.

It is a front view which fractures | ruptures and shows case 1 of 1st Example of this invention. It is a bottom view of the lighter shown in FIG. 1, (a) shows the state which clamped the baseplate 28 to the outer case, (b) shows the state which released the restraint. It is the front view which pulled out the fuel tank 21 of the lighter shown in FIG. 1 from the outer case in the restraint cancellation | release state shown to (b) of FIG. Case 1 is shown broken. FIG. 4 is an exploded perspective view of a combination portion of a bottom plate 28 and a lock case 27 shown in FIGS. It is an enlarged view of the lock plate shown in FIG. 4, (a) is a side view, (b) is a top view, (c) is a perspective view. (A) is a perspective view which shows the external appearance of the lighter shown in FIG. 1, (b) is a perspective view which shows a use condition. It is a front view which fractures | ruptures and shows the case 1 of 2nd Example of this invention. It is a bottom view of the lighter shown in FIG. 7, (a) shows the state in which the bottom plate 28 is restrained to the outer case, and (b) shows the state in which the restraint is released. It is a front view which fractures | ruptures and shows case 1 of 1 modification of 2nd Example. (A) is a perspective view which shows the external appearance of one form of the lighter equipped with the lower unit 40 of the 1st modification of 2nd Example, (b) is a perspective view which shows a use condition. (A) is a perspective view which shows the external appearance of another form of the lighter equipped with the lower unit 40 of the 1st modification of 2nd Example, (b) is a perspective view which shows a use condition. (A) is a perspective view which shows the external appearance of another form of the lighter equipped with the lower unit 40 of the 1st modification of 2nd Example, (b) is a perspective view which shows a use condition.

Explanation of symbols

1: Case 2: Suspension leg 3: Relay pipe 4: Nozzle receiver 5: Connecting tube 6: Flame nozzle 7: File rotating wheel 8: Flint cylinder 9: Branch 10: Cap 11: Cap arm 12: Arm trunk 13: Pin 14: Toggle cylinder 15: Lifting rod 16a, 16b: Engaging groove 17a, 17b: Claw hole 18: Lower opening 20: Upper unit 21: Fuel tank 22: Pin frame 23: Inner nozzle 24, 25: Pin 26: Gas Release lever 27: Lock case 28: Bottom plate 29: Lock cap 30: Rubber ring 31: Lock plate 32: Washer 33: Lock set screw 34-36: Countersunk screw 37, 38: Female screw sleeve 39a: Gas inlet 39b: Adjustment ring 40: Lower unit 41: File ring 42: Flint 43: Pipe 44: Gas release button 45: Windshield

Claims (8)

A flame nozzle, an ignition mechanism for igniting the fuel gas discharged from the flame nozzle, a fuel gas supply pipe having one end communicating with the flame nozzle, and an upper mechanism including an external operation element for a user to perform a fuel gas discharge operation; An outer case having a mechanism mounted on the upper wall and having an upper end closed and a lower end opened , and the opening at the other end of the fuel gas supply pipe and the lower end of the external operation element are front-rear and left-right directions inside the outer case. The position of the upper unit; and
A fuel tank having a fuel discharge valve and an inner nozzle to which fuel gas is supplied by opening the fuel discharge valve, an internal operator mounted on the fuel tank for opening the fuel discharge valve, and a bottom of the fuel tank A lock case that can be inserted into the lower opening of the outer case, a bottom plate that is located below the lock case and closes the lower opening of the outer case, and a lock plate that is attached to the lock case and is engaged with the outer case A lock member that can be moved to a mating engagement position and a release position, and when inserted into the lower opening of the outer case, the inner nozzle and the inner operation element are each the fuel gas supply pipe in the outer case. of positioned at the position of the lower end of the opening and an external operator on the other end is fixed integrally to the outer casing by a locking operation of moving the locking member in the engaged position, the lock It can be withdrawn from the outer case by the release operation of moving the member in the release position, the lower unit;
Cartridge lighter.   2. The cartridge lighter according to claim 1, wherein an opening portion at the other end of the fuel gas supply pipe is a flexible tube; a tapered end surface entering the opening is provided at an upper end of the inner nozzle;   The opening part of the other end of the fuel gas supply pipe is a flexible tube; the upper end of the inner nozzle has an outer diameter smaller than the inner diameter of the opening, and a flange with which the lower end surface of the tube hits the lower part. The cartridge writer according to claim 1 or 2.   The inner nozzle is a part of the movable valve of the fuel discharge valve of the fuel tank, and the valve is opened when the inner nozzle is pulled up; the internal operation element uses a fulcrum with one end engaged with the inner nozzle. A lever that pulls up the inner nozzle by depressing the other end opposite to the one end with respect to the fulcrum; and lowering the lower end of the external operation element and depressing the other end of the internal operation element; Item 4. The cartridge writer according to any one of Items 1 to 3. The lock member is a cam plate that is mounted on the lock case so as to be rotatable about a vertical axis, and has a claw portion that fits into an engagement groove formed on an inner wall surface of the outer case. The cartridge lighter according to any one of claims 1 to 4, wherein the claw portion is fitted into and disengaged from the engagement groove by rotation.   The cartridge lighter according to claim 5, wherein the claw portion has a protrusion protruding in a vertical direction that fits into the engagement groove. The cartridge writer according to claim 5 or 6, wherein the lock member is coupled to the lock case via an elastic member.   The cartridge lighter according to any one of claims 1 to 7, wherein the fuel tank has a pipe penetrating the fuel tank in a vertical direction and having upper and lower ends opened to the outside of the tank.

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