WO2000073704A1 - Ignitor - Google Patents

Abstract

An ignitor capable of increasing an productivity and reducing a cost of the mechanism parts of lock means to lock operating members for igniting operation while maintaining a good operating performance and increasing a reliability throughout long period of time, wherein an operating members (20) performing the igniting operation by driving a valve mechanism (8) and a piezoelectric unit (22) are installed slidably and lock means (27) to lock the operating members (20) is supported rotatably on an ignitor main body part (2), the lock means (27) is energized in the direction of locking position by energizing means (31), and the lock means (27) is rotated from the lock position to a release position so that the igniting operation is allowed by the operating members (20).

Description

 Akira Itoda

Igniter

Technical field

 The present invention relates to an igniter that ejects a flame from an ejection nozzle by operating an operation member, wherein the ignition operation of the operation member is normally locked, but the lock is released when used. Background art

 2. Description of the Related Art Conventionally, for example, as disclosed in Japanese Patent Application Laid-Open No. Hei 8-685336, a push button-shaped locking means for locking the operation of an operating member for performing an ignition operation in an igniter. When the lock means is not operated, the ignition operation of the operating member is turned on, and the ignition can be performed in accordance with the push-release operation of the lock means, while the release operation of the lock means is performed. There has been proposed a structure provided with an ignition lock function provided to automatically return to the lock position when released.

 Further, as shown in Japanese Patent Application Laid-Open No. 11-63497, the ignition device is provided with a lever-shaped opening means for locking the operation of the operation member for performing the ignition operation. When the locking means is not operated, the ignition operation of the operating member is turned on, and the ignition is enabled in accordance with the releasing operation of the locking means. There has been proposed a structure provided with an ignition lock function that can be performed and automatically returns to a lock position when a release operation of the lock means is released.

However, in the above-described igniter, the mechanism of the locking means is such that a lock member for locking the movement of the operation member is slidably provided on the igniter body, and the lock is released. Slide these locking members according to the operation It is a structure that is moved to the unlocked position, and in order to hold this sliding member to ensure good sliding for a long period of time, there is an operation failure to lock diagonally and lock it. It needs to be manufactured with high accuracy so that there is no disadvantage in terms of securing productivity in mass production and cost.

 Further, in the above-described igniter, the releasing operation of the locking means is a single operation of pressing down a push-button-shaped member or pressing a lever-shaped member. In some cases, a more complicated unlocking operation is desired.

 In view of the above, unlocking is performed by combining the two types of operations, the operation of pushing down the push button and the operation of pushing the lever, or the sliding operation with these. It is conceivable that unlocking is performed by a combination of parts.However, these unlocking operations require operations with different fingers or need to perform discontinuous operations. However, there is a difficulty in its performance, and further improvement is desired for practical use.

 That is, the basic ignition operation of the igniter requires the operation of the operating member, and in addition to this, the unlocking operation with multiple fingers or the pushing operation after the sliding operation In the case of performing a discontinuous operation such as that described above, the operation is troublesome and the operability in the case of normal ignition use is deteriorated, and the mechanism of the igniter as a whole becomes complicated.

 In view of this, the present invention has made the mechanical parts of the locking means for locking the operating member advantageous in terms of productivity and cost while ensuring good operation performance for a long time. No igniter will be provided.

Further, the present invention does not provide an igniter capable of improving operability such that a plurality of lock release operations can be obtained by a series of continuous operations. Disclosure of the invention

 An igniter according to the present invention, which has solved the above-mentioned problems, includes an ejection nozzle for ejecting gas, and includes a gas tank, a valve mechanism for opening and closing gas supply from the gas tank to the ejection nozzle, and a discharge voltage for ignition. The generated piezoelectric unit is installed, and an operating member that drives the valve mechanism and the piezoelectric unit to perform an ignition operation is slidably installed. Locking means rotatably supported between a locking position for locking the ignition operation of the operating member and a release position for permitting the ignition operation; and locking the locking means. And a biasing means for biasing in the direction of the locking position.

 Further, another igniter of the present invention includes an ejection nozzle for ejecting gas, a gas mechanism, a valve mechanism for opening and closing gas supply from the gas tank to the ejection nozzle, and a discharge voltage for ignition. A slidable piezoelectric unit, and an operation member for driving the valve mechanism and the piezo unit to perform an ignition operation is slidably mounted on the igniter body. A locking means for supporting the operation member to lock the ignition operation of the operation member and a rotation position of a release position allowing the ignition operation; and a locking means for locking the locking means. An urging means for urging in the direction of the position; and a rotatable member integrally rotatable with the locking means, wherein the restricting portion is locked to the main body at the restricting position, and the locking means is rotated to the release position. And the push-in operation causes A regulating means for moving to a non-regulating position for releasing the stop, and an elastic means for urging the regulating portion of the regulating means in the direction of the regulating position, and pushing the regulating means from the regulating position to the non-regulating position. It is characterized by actuating and operating the locking means from a locking position to a releasing position to allow an ignition operation by the operating member.

The regulating means is formed of an elastic piece fixed to the locking means, and an elastic means for urging the regulating portion in the direction of the regulating position by the elasticity of the elastic piece. It is possible to provide such a structure that the restricting portion is operated from the restricted position to the non-restricted position by the pushing deformation of the elastic piece. At this time, the regulating means may be formed as a separate part from the locking means, or may be formed integrally with the locking means. Further, the locking portion of the main body portion which is locked by the restricting portion of the restricting means may be formed so as to protrude in the rotation direction of the locking means.

 Further, the restricting means is slidably supported by the locking means and urged in the protruding direction by elastic means, and the restricting portion is locked to the main body at the restricting position. It may be provided so as to release the lock between the restricting portion and the main body portion.

 Further, it is desirable that the restricting means be provided so as to automatically return from the non-restricted position to the restricted position with the return rotation of the locking means from the release position to the locked position.

 On the other hand, it is preferable to provide the gas pipe so as to pass through the inside of the opening means.

 In addition, it is desirable that the operation member is provided so that the ignition operation can be repeatedly performed by continuing the releasing operation of the locking means.

 The locking means has a locking portion that locks an ignition operation by interfering with a part of the operating member at a locking position, and the locking portion is rotated when the locking portion is turned to a release position. It is preferable to provide such that it moves to a position where it does not interfere with the operation member. At this time, it is desirable that the center of rotation of the locking means be movably supported.

 According to the igniter of the present invention as described above, the locking means is rotatably held on the igniter main body, and is urged in the locking direction by the urging means. In addition, since the lock release operation is pivotal, the operation of the lock mechanism component with respect to the main body can be reliably performed even with low dimensional accuracy, and productivity and cost in mass production can be improved. This is advantageous.

According to another igniter of the present invention, when the regulating means is in the regulating position where the regulating means is not pushed in, the locking means is rotated to the release position. In the lock position, the ignition operation cannot be performed by the operating member, and the ignition lock state occurs.On the other hand, the control means, which is rotatable integrally with the lock means, is released from the control position. By rotating the locking means from the lock position to the release position while pushing the lock member into the regulation position, the operation member can be ignited, and fuel gas is ejected by the operation. Combustion can be started by igniting while the ignition is performed in a series of two operations in which the locking means is rotated while pushing the regulating means. The control function can be secured and the structure can be simplified.

 Further, if the operation member is provided so that the ignition operation can be repeatedly performed by continuing the releasing operation of the locking means, ignition combustion cannot be performed by one ignition operation. Re-ignition operation can be easily performed in this case, and the operability is excellent. In addition, if the regulating means is set to automatically return to the regulating position with the return rotation of the locking means to the locking position, the return to the ignition locking state is automatically performed. I can do it.

BRIEF DESCRIPTION OF THE FIGURES

 FIG. 1 is a front view of a main part of an igniter according to a first embodiment of the present invention. FIG. 2 is a cross-sectional side view of a main part of FIG.

 Fig. 3 is a cross-sectional view of Fig. 2

 Fig. 4 is an exploded perspective view of parts related to the ignition control mechanism in Fig. 1.

 Fig. 5 is a sectional side view of the main part showing the operating state of Fig. 2.

 FIG. 6 is a sectional side view of a main part of an igniter according to a second embodiment of the present invention. FIG. 7 is an exploded perspective view of parts related to the ignition control mechanism of FIG.

 Fig. 8 is a cross-sectional side view of the main part showing the operating state of Fig. 6.

 FIG. 9 is a front view of a main part of an igniter according to a third embodiment of the present invention. FIG. 10 is a cross-sectional side view of a main part of FIG.

FIGS. 11A and 11B are cross-sectional side views of the main part showing the operating state of FIG. FIG. 12 is a cross-sectional side view of a main part of an igniter according to a fourth embodiment of the present invention.

 FIG. 13 is a sectional perspective view of a main part showing the operation state of FIG. 12.

 FIG. 14 is a cross-sectional side view of a main part of an igniter according to a fifth embodiment of the present invention.

 Fig. 15A and Fig. 15B are cross-sectional side views of the main part showing the operating state of Fig. 14

 FIG. 16 is a sectional side view of a main part of an igniter according to a sixth embodiment of the present invention.

 Fig. 17 is a front view of the main part of Fig. 16.

 Fig. 18 is a cross-sectional view of XV I I-XV I I I of Fig. 17.

 Fig. 19A and Fig. 19B are cross-sectional side views of the main part showing the operating state of Fig. 16.

Best mode for carrying out the invention

 Hereinafter, each embodiment of the igniter of the present invention will be described in detail with reference to the drawings.

 <First Embodiment>

 Fig. 1 and Fig. 5 show an ignition device using an ignition rod according to this embodiment. Fig. 1 is a front view of a main part, Fig. 2 is a cross-sectional side view of a main part, Fig. 3 is a III-III cross-sectional view of Fig. 2, and Fig. 4 is FIG. 5 is an exploded perspective view of parts related to the ignition control mechanism, and FIG. 5 is a sectional side view of a main part in an operating state.

 The igniter 1 (ignition rod) is composed of a main body 2 and a rod-like extending tip 3 (the tip is not shown). The main body 2 is formed of a lower case 5 whose outer shell is formed of synthetic resin, and an intermediate case 6 which is vertically divided at the center substantially vertically above the lower case 5 as shown in FIGS. 2, 4 and 4. In FIG. 5, one of the intermediate cases 6 is shown.

A gas tank (not shown) formed of a synthetic resin that accommodates a high-pressure gas such as blown gas in a lower case 5 is provided on the base end side of the main body 2. The gas tank is provided with a valve mechanism 8 for opening and closing gas supply on the upper wall portion. The gas in the gas tank is supplied to the valve mechanism 8, and a nozzle member 10 is interposed in the gas passage. One end of a rotary lever 14 for opening the nozzle member 10 is engaged with the tip of the nozzle member 10, and the nozzle 14 is actuated by the operation of the rotary lever 14. A passage is created by the forward movement of the nozzle member 10, and gas is supplied, or the passage is closed by a retreat movement by a spring disposed in the valve mechanism 8, and the gas supply is stopped. The gas supply amount, that is, the size of the flame is adjusted by turning the flame adjustment knob 13 projecting to the outside.

 Further, a sleeve member 16 and a connector pipe 17 are arranged on the extension of the tip of the nozzle member 10 and connected to the gas pipe 18. The gas pipe 18 extends to the tip of the extension end 3 and is connected to an ejection nozzle (not shown) to supply gas.

 An operating member 20 (ignition button) is disposed in the intermediate case 6 of the main body 2 on the side of the valve mechanism 8 so as to be freely slidable in parallel with the center line of the valve mechanism 8. A piezoelectric unit 22 is provided inside the operation member 20 between the operation member 20 and the gas nozzle.

 As shown in FIG. 4, the operating member 20 has a cylindrical portion 2 O b slidably supported inside the opening of the intermediate case 6, and a distal end portion of the cylindrical portion 20 b. An operation unit 20a is provided at an angle. Further, a leg portion 20d extending in the sliding direction is connected to an end of the cylindrical portion 20b on the valve mechanism 8 side. The leg portion 20d is configured so as to be linked with the end of the turning lever 14 to turn the same during the ignition movement.

Further, an opening 20 e through which a lock portion 30 b of a lock member 30 described later can pass is provided on a back portion between the leg portion 20 d and the operation portion 20 a. Is formed, and the end of the opening 20 e on the operation portion 20 a side is a locking portion 2. It is formed at 0 f.

 The rotation lever 14 is formed in a substantially L-shape, is rotatably supported around a fulcrum of an intermediate portion, and is rotated by a leg 20 d of the operation member 20. The nozzle member 10 of the valve mechanism 8 is moved so as to be pulled out by the rotation accompanying the ignition operation, and is opened to supply gas.

 Further, the piezoelectric unit 22 supplies a discharge voltage, and a sliding portion 22 a that expands and contracts is fitted to a cylindrical portion 20 b of the operating member 20, and the operating member The slide portion 22a is immersed and moved with the retreating operation of 20 to generate a discharge voltage. The lead wires 23 (two wires) connected to the electrodes of the piezoelectric unit 22 are connected to the ejection nozzle (not shown) and the discharge electrode.

 The intermediate case 6 is formed with a protective frame 24 enclosing a space for inserting a finger outside the operating portion 20a of the operating member 20.

 Next, an ignition control mechanism for regulating the ignition operation of the operation member 20 is provided for the igniter 1 having the above-described structure.

 This control mechanism locks or cancels the ignition operation of the operation member 20, and a lock member 30 rotatably supported on the inner surface of the main body 2 (intermediate case 6). Locking means 27, and urging means 31 by a torsion panel for urging the locking means 27 in the direction of the locking position, and the locking means 27 is locked. It is linked so that the ignition operation of the operation member 20 is allowed when the rotation operation is performed from the position to the release position.

The locking member 30 has substantially semicircular side plates 30a each having an outer periphery formed in an arc shape and disposed on both sides (see FIG. 3), and one end of the side plate 30a is provided at one end. A hook-shaped lock portion 30b which is inserted into the opening 20e of the operation member 20 and can be engaged with the lock engagement portion 20f is formed. The outer peripheral arc portions of the both side plates 30a are integrally connected by a peripheral wall 30c, A space is formed inside. Further, on the outer surface of both side plates 30a, a shaft portion 30d extending laterally is provided at the center position of the arc of the outer circumference, and the shaft portion 30d is provided on the main body 2 (the intermediate case 6). ) Is inserted into a long-hole-shaped bearing portion 2a (see FIG. 4) and supported rotatably and movably along the bearing portion 2a, and a lock portion 30b is The lock portion can be turned between a lock position where the lock portion is engaged with the lock portion 2Of and a release position where the lock portion 3Ob moves into the main body portion 2. The peripheral wall 30c protrudes outward from a window 2b opened on a wall opposite to the protective frame 24 of the main body 2 (intermediate case 6), and the outer surface of the peripheral wall 30c is rotated. It is used as a finger hook for the user, and a concave groove is formed in the lateral direction.

 On the outer surface of one side plate 30a, a panel receiver 30e composed of two projections is provided. The center coil part of the torsion panel 31 as an urging means is inserted into the outer periphery of the shaft part 30 d on the side where the spring receiver 30 e protrudes, and the torsion spring 31 is One straight portion is engaged with the panel receiver 30 e, the other straight portion is locked by the projection 2 c of the main body 2, and the lock portion 30 b is moved to the operation member 20 side. It is urged in the rotating locking direction. The urging force of the urging means 31 is set to be relatively high, and the turning operation force in the release direction is set to be relatively large.

 On the outer surface of the other side plate 30a, a stopper 30f (see Fig. 3) is protrudingly provided. When the locking member 30 rotates in the locking direction, the stopper 30f comes into contact with a not-shown locking portion of the main body 2 to regulate the stop position. When the locking member 30 is turned in the release direction, the tip of the side plate 30a contacts the protrusion 2c of the main body 2 to regulate the maximum turning position (see FIG. 5). ).

In the assembled state of the locking member 30, the connector pipe 17 and the gas pipe 18 are provided so that the space between the side plates 30 a passes through the space (described later). The same applies to other embodiments.) Also, release of the peripheral wall 30 c of the locking member 30. The distal end in the direction is formed at a position where it does not interfere with the gas pipe 18 disposed inside when it is turned to the release position shown in FIG.

 The operation of the ignition control mechanism of the igniter 1 of the present embodiment as described above will be described. First, the state shown in FIG. 2 is a non-operating state in which the locking member 30 is in the locking position (leaving state) and the operating member 20 projects into the protection frame 24. In this state, The lock portion 30b of the lock member 30 projects from the opening 20e of the operation member 20 to the inside of the operation member 20 and engages with the lock engagement portion 2Of. However, the pushing operation of the operation member 20 cannot be performed, and the ignition operation cannot be performed.

 Next, when the igniter 1 is used, as shown in Fig. 5, when the peripheral wall 30c of the locking member 30 is rotated forward in the releasing direction, the locking portion 3O b moves from the interference position inside the opening 20 e of the operation member 20 to the release position inside the main body 2, and the push-in ignition operation of the operation member 20 becomes possible. At this time, the force for operating the locking member 30 to rotate also acts to push or push the shaft portion 30d forward, and the shaft portion 30d pushes the bearing portion 2a. The center of rotation moves forward along the shape of the slot.

 Then, when the operating member 20 is fired in the above-mentioned unlocked state, the nozzle member 10 is pulled out via the rotating lever 14 with the movement of the operating member 20, and the valve mechanism 8 is pulled out. Is opened to supply gas to the jet nozzle through the gas pipe 18. In addition, a discharge voltage (AC voltage) is generated from the piezoelectric unit 22 in accordance with the operation of the operation member 20, and is applied between the discharge electrode of the extension end 3 and the ejection nozzle, and the discharge voltage (AC voltage) is reduced. Ignition takes place.

If the operation member 20 is pushed in before the locking member 30 is released, if the locking member 20 f and the locking member 30 are locked. The lock member 30 Ob strongly engages with the lock member 30 to make it difficult to release the lock member 30 in the releasing direction. However, the shaft portion 30 d of the lock member 30 d Is movably supported by the long-hole-shaped bearing portion 2a as described above, and when the locking member 30 is rotated so as to be pushed in, the shaft portion 30d moves forward. As a result, the engagement between the locking portion 3Ob and the locking portion 2Of is easily released, and the locking operation of the locking member 30 in the releasing direction becomes possible ( The same applies to other embodiments described later.)

 When the lock member 30 is kept rotated and the operation to the release position is continued, the operation member 20 can perform the ignition operation repeatedly, and the gas is ignited by one ignition operation. If not, the continuous ignition operation becomes easy (the same applies to other embodiments described later).

 When the operating member 20 and the locking member 30 are released to end use, the operating member 20 protrudes and moves due to the elasticity of the spring in the piezoelectric unit 22, and the initial position is reduced. When the locking member 30 returns to the position, the locking member 30 is moved to the locking position so that the locking portion 30b is protruded by the urging force of the urging means 31 (torsion panel). And automatically returns to the locked state shown in Fig. 2, which prevents the operation member 20 from being pushed.

 In the present embodiment, since the lock member 30 is rotatably supported, malfunctions due to the rotational movement being caught halfway are less likely to occur. A stable ignition control function can be secured for long-term repeated use. Furthermore, the gas pipe 18 is inserted between the side plates 30a of the locking member 30 so that the locking member 30 can be prevented from interfering with the internal mechanism. It can be installed while ensuring the ease of assembly.

<Second embodiment>

 This embodiment is shown in FIGS. 6 and 7, in which the form of the main body of the igniter is different from that of the first embodiment, the ignition control mechanism is formed similarly, and the basic functions are the same.

The main body 102 of the igniter 100 of the present embodiment is formed of a case 7 in which the entire outer shell is vertically divided substantially at the center. Further, the shape of the operation member 120 for performing the ignition operation is partially different. The operating member 120 has a tubular portion 12 Ob slidably supported by the case 7, and the operating portion 120 a is obliquely provided at a tip end of the tubular portion 12 Ob. Is provided. The operating portion 120a is formed so as to extend from the cylindrical portion 120b to the main body portion 102 side, and is linked to the rotating lever 14 at the rear end of the cylindrical portion 120b. The leg 120d is extended. A locking wall 120 e extends from an extension of the operation portion 120 a in parallel with a back surface of the cylindrical portion 120 b, and a distal end of the locking wall 120 e is provided with a locking member 30. It is formed on a lock locking portion 120 f which can be locked to the locking portion 30 b of the locking member.

 The positions of the bearing portion 102 a and the projection portion 102 c of the main body portion 102 are arranged close to the window portion 102 b in accordance with the operation member 120 described above. The window 102b is opened long in the front-rear direction, and the shape of the protective frame 124 is different.

 On the other hand, the locking member 30 of the locking means 27 has the same configuration as that of the first embodiment, and the position of the bearing portion 102a supporting the shaft portion 30d is different. By being disposed on the window 102b side, the amount of protrusion of the peripheral wall 30c exposed to the outside from the window 102b is large.

 The rest is the same as the first embodiment, and the same components are denoted by the same reference numerals.

 Next, FIG. 8 shows another mode in which the locking member 130 of the locking means 27 is reduced in the igniter 100 of this embodiment. Others are the same as in FIG.

In this embodiment, the locking member 130 is provided with a small circular arc portion of the both side plates 130a, that is, a small radius of the peripheral wall 130c, and a window portion 102b of the main body portion 102. (The length in the front-rear direction is formed to be equal to that of the first embodiment.) The protrusion amount of the peripheral wall 130c is reduced, and the lock portion 130b, the shaft portion 13 0 d Panel receiver 1 3 0 e, etc. are similarly formed You.

 In addition, with the downsizing of the peripheral wall 130c of the locking member 130, when the locking member 130 pivots in the release direction, the tip of the peripheral wall 130c becomes a gas pipe. When pressing 18, it is necessary to cut off the tip of the peripheral wall 130 c to avoid interference with the gas pipe 18, but with this, the tip of the peripheral wall 130 c at the mouth position When the part is located away from the opening end of the window 102 b, a part of the case 7 of the main body 102 is moved from the opening end of the window 102 b to the tip of the peripheral wall 130 c. The protrusion may be formed so as to cover the portion.

 <Third embodiment>

 This embodiment is shown in FIGS. 9 to 11A and 11B, showing another embodiment of the ignition control mechanism. The main body 2, the operating member 20, etc. of the igniter 200 are the first embodiment. This is the same as the embodiment (FIGS. 1 to 5), and the same components are denoted by the same reference numerals and description thereof will be omitted.

 The ignition control mechanism of this embodiment includes a locking means 27 using a rotatable locking member 230 for locking the ignition operation of the operation member 20, and a locking means 27. Means 31 by a torsion panel for urging the locking means in the direction of the locking position; and the locking means which is integrally fixed to the locking member 230 and locked to the main body 2 to lock the locking means. The elastic member 3 2a for regulating the rotation of 27 has a regulating portion 32c, and the regulating member 32 serving as an elastic means for urging the regulating portion 32c with the elasticity of the elastic piece itself. And the locking means 26 is pushed from the restricted position to the non-regulated position, and simultaneously or continuously, the locking means 27 is released from the locked position. It is linked so as to allow the ignition operation of the operation member 20 when the rotation operation is performed.

The locking member 230 has a substantially semicircular side plate 230a having an outer periphery formed in an arc on both sides, and an operating member 2 is provided at one end of the side plate 230a. Hook-shaped lock part 2 3 0 that can be inserted into opening 0 0 e b is formed. The both side plates 230a are integrally connected by an inner connecting portion 230c to form a space inside. In addition, a shaft portion 230 d is provided on the side surface of both side plates 230 a at the center of rotation, and this shaft portion 230 d is a slot-shaped bearing portion 2 a ( (See Fig. 4) and is rotatably supported between the lock position and the release position. The outer peripheral portion of the side plate 230a projects outward from the window portion 2b of the main body portion 2, and this outer peripheral portion serves as a finger hook for rotating operation, and has a concave groove formed in the lateral direction. .

 The outer surface of one side plate 230a is provided with a spring support by two projections.

230 e is provided, and the linear portion of the torsion panel 31 as urging means is engaged, and is urged in the locking direction as in the above-described embodiment.

 On the other hand, the restricting member 32 is formed as a separate part by using, for example, a different resin from the locking member 230, and is formed inside both side plates 230 a of the locking member 230. The elastic piece 32 has a substantially arc-shaped curved elastic piece 32 a having a width corresponding to the interval. A fixed portion 32 b is continuously provided at a base of the elastic piece 32 a, and the fixed portion 32 b is formed. The locking member 230 is fitted and fixed to the connecting portion 230c of the locking member 230 from behind.

 A restricting portion 32c is formed at the tip of the elastic piece 32a, and a protruding pressing portion 32d is formed at an intermediate portion. In the free state (non-pressed state), the elastic piece 32 a has a curved shape having a larger radius of curvature than the arc portion of the side plate 230 a of the locking member 230, and a regulating portion at the tip. 32 c protrudes outward from the side plate 230 a, and the restricting portion 32 c interferes with the locking portion 2 d at the front end of the window 2 b of the main body 2. Due to this interference, the rotation of the mouth member 30 is regulated.

3d is pushed in, the radius of curvature is reduced, and the regulating part 32c moves into the side plate 230a, and is elastic with the unregulated position where it cannot engage with the locking part 2d. Deformable. Then, the restricting portion 32c is urged to the restricting position by the elasticity of the elastic piece 32a and is returned and deformed. In addition, at the tip of the elastic piece 32a of the regulating member 32, a projection 32e is formed at the tip further than the regulating portion 32c, and the locking member 230 is locked. When the regulating member 32 is in the regulating position and the regulating member 32 is in the regulating position (FIG. 10), the protrusion 32 e is positioned inside the opening end locking portion 2 d of the window 2 b of the main body 2. It is locked so that the elastic piece 32a does not come off the window 2b. At this time, the projection 32 e is formed at a position that does not interfere with the gas pipe 18 when the projection 32 e is rotated to the release position shown in FIG. 11B.

 The operation of the ignition control mechanism of the igniter 200 of the present embodiment as described above will be described. First, the state shown in FIG. 9 and FIG. 10 indicates that the restricting member 32 is in the restricting position and the locking member 230 is in the locking position (leaving state), and the operating member 20 is in the non-operating state. However, in this state, the pushing operation of the operation member 20 cannot be performed, and the ignition operation cannot be performed. In addition, the restricting portion 32c of the restricting member 32 protrudes and interferes with the locking portion 2d of the main body portion 2, and the locking member 230 is rotated when the restricting member 32 is not pushed in. Even then, the rotation operation of the lock member 230 is impossible.

 Next, when the igniter 200 is used, as shown in FIG. 11A, the pressing portion 3 2 d of the elastic piece 32 a of the regulating member 32 is unregulated against its elastic force. When it is pushed into this position, the restricting portion 32c at the tip of the elastic piece 32a moves from the front of the locking portion 2d of the main body 2 to an inward position where it does not interfere with the locking member. Rotation in the release direction of 30 is allowed.

 Subsequently, as shown in FIG. 11B, the outer peripheral portion of the side plate 23 a of the locking member 230 is rotated forward in the releasing direction while the pressing portion 32 d of the regulating member 32 is pushed in. When operated, the lock portion 23 Ob moves from the interference position in the opening 20 e of the operation member 20 to the release position inside the main body 2, and the push-in ignition of the operation member 20 is performed. Operation becomes possible.

When the operating member 20, the locking member 230 and the restricting member 32 are released to end use, the operating member 20 protrudes and moves to its initial position. At the same time, the lock member 230 rotates to the lock position by the urging force of the urging means 31 (torsion panel). With the rotation of the lock member 230, the restricting member 32 also protrudes with the elastic force of the elastic piece 32a, and the restricting portion 32b protrudes and returns to the restricting position. The rotation of 230 is also disabled, and the lock is automatically returned to the locked state shown in FIG. 10 which prevents the operation member 20 from being pushed.

 In the present embodiment, since the locking member 230 and the regulating member 32 are separate parts, the locking member 230 and the regulating member 32 can be formed of a resin material having characteristics suitable for each part. The rigidity of the member 230 and the elasticity of the regulating member 32 can be satisfactorily ensured. Also, the assembly of the two is excellent in productivity as a fitting structure.

<Fourth embodiment>

 This embodiment is shown in FIGS. 12 and 13, in which the form of the main body 102 of the igniter 300 is the same as that of the second embodiment (FIGS. 6 and 7). Accordingly, the form of the ignition control mechanism is different from that of the third embodiment, but the basic functions are the same.

 In the igniter 300 of the present embodiment, the operating part 120a of the operating member 120 protrudes toward the main body part 102, and as described above, the bearing part 102a (See FIG. 7), the projection 102c is formed closer to the window 102b side.

In the ignition control mechanism of this example, the locking member 33 ◦ of the locking means 27 has a small diameter corresponding to the arc-shaped outer peripheral portion of both side plates 330 a as in the embodiment of FIG. The other locking portions 330b, connecting portions 330c, shaft portions 330d, etc. have slightly different shapes from those of the third embodiment, but are substantially the same. In addition, the locking member 33 of the restricting means 26 formed as a separate part from the locking member 330 is formed by fixing the base of the elastic piece 132 a to the locking member 33 by the fixing portion 132 b. The elastic piece 1 32 a, which is fixed to the connecting section 3 0 c of No. 0 and is provided with the pressing section 1 32 d, becomes shorter. Is wearing. The position of the restricting portion 1332c at the tip of the elastic piece 1332a is located away from the opening end of the window portion 102b formed in the main body portion 102. The locking portion 102 d of the main body 102 to which the above-mentioned restricting portion 13 2 c locks is brought into close proximity to the restricting portion 13 2 c from the opening end of the window 102 b. It is provided at the tip of a protrusion 102 e that protrudes in the rotation direction of the hook member 330.

 The operation of the ignition control mechanism of this embodiment is the same as that of the third embodiment. In the locked state shown in FIG. 12, the pushing operation of the operating member 120 is disabled and the ignition operation is locked. Then, while pushing the elastic piece 13 2 a of the regulating member 13 2 into the non-regulating position to allow the locking member 330 to rotate, the locking member 330 is moved as shown in FIG. As shown in FIG. 3, it is rotated to the release position, and the ignition operation of the operation member 120 is enabled.

 In this embodiment, the installation space for the locking member 330 and the regulating member 132 is narrow, and the opening is reduced while reducing the size to reduce the amount of protrusion from the window 102 b. When the member 330 rotates to the release position, in order to prevent the restricting member 1332c at the tip of the restricting member 1332 from pressing and crushing the gas pipe 18 when the member 33 rotates to the release position. However, in a structure in which the length of the elastic piece 132a is reduced to prevent interference with the gas pipe 18, the locking of the main body 102 with the locking portion 102d is performed. Is secured. <Fifth embodiment>

 This embodiment is shown in FIGS. 14 and 15A and 15B. The configuration of the main body 2 of the igniter 400 is the same as that of the first embodiment (FIGS. 1 to 5). The locking means 27 and the regulating means 26 of the control mechanism are integrally formed, and the basic functions are the same as in the third embodiment.

The ignition control mechanism in this embodiment includes a locking means 27 using a rotatable locking member 43 that locks the ignition operation of the operation member 20, and a locking member 43. A biasing means 31 by means of a torsion panel for biasing in the direction of the locking position and the locking member 430 are formed integrally with the A restricting means 23 for restricting the rotation of the mouth member 4 30 by locking the restricting portion 2 32 c by the piece 2 32 a to the main body 2 to restrict the restricting member 2 32 When the lock member 43 is rotated from the lock position to the release position at the same time as the push operation from the position to the non-restricted position, or continuously, the ignition operation of the operation member 20 is performed. Linked to allow.

 The locking member 43 has a substantially semicircular side plate 43a provided on both sides, and an opening 20e of the operating member 20 at one end of the side plate 43a. A hook-shaped lock portion 43 Ob that can be inserted into the hole is formed. The both side plates 4300a are integrally connected by a regulating member 2322, and a space is formed therein. In addition, a shaft portion 330d is provided on the side surface of the both side plates 43a at the center of rotation, and the shaft portion 330d is a long hole-shaped bearing portion 2a of the main body portion 2. (See Fig. 4) and is pivotally supported between the lock position and the release position. On the outer surface of one of the side plates 430a, a panel receiver 430e having two projections is provided, and the linear portion of the torsion panel 331 as an urging means is engaged. Then, it is biased in the locking direction.

 On the other hand, the restricting member 232 is formed integrally with the side plate 430a of the locking member 430, and is formed in a substantially arc shape having a width corresponding to the width between the outer sides of the side plates 430a. It has a curved elastic piece 2 32 a, and the fixed portion 2 32 b of the base of the elastic piece 2 32 a is fixed to both side plates 4 300 a, and the both side plates 4 330 a are connected. are doing. The elastic pieces 2 32 a extend over the outer sides of the side plates 4 a, and at the ends thereof are formed with restricting portions 2 32 c, which project outward from the windows 2 b of the main body 2. The surface of the piece 2 32 a serves as a finger hook for pushing and rotating operation, and a concave groove is formed in the lateral direction.

In the free state (non-pressed state) of the elastic piece 2 32 a, the restricting portion 2 32 c at the tip interferes with the locking portion 2 d at the front end of the window 2 b of the main body 2, and the locking member 4 3 Rotation of the elastic piece 2 The elastic piece can be elastically deformed to the non-regulated position into which it is pushed, and is biased to the restricted position by the elasticity of the elastic piece itself. The regulation unit

Further, a protrusion 2 32 e is formed at the end of the window 2 b to be locked inside the open end of the window 2 b.

 The operation of the ignition control mechanism of the present embodiment is the same as that of the third embodiment. In the locked state of FIG. 14, the pushing operation of the operating member 20 is disabled and the ignition operation is locked. As shown in Fig. 15A, push the elastic piece 2 3 2a of the regulating member 2 32 into the non-regulating position and operate the locking member 4.

The locking member 43 is rotated to the release position as shown in FIG. 15B while the rotation of the rotation member 30 is enabled, and the ignition operation of the operation member 20 is enabled.

 In the present embodiment, since the locking member 430 and the regulating member 232 are formed into a single body, the number of parts is small, which is advantageous in terms of productivity and cost.

Sixth embodiment>

 This embodiment is shown in FIGS. 16 to 19A and B, which shows another embodiment of the ignition control mechanism. The main body 2 of the igniter 500 is the same as the first embodiment (FIG. 1). To Fig. 5).

 This ignition control mechanism includes a locking means 27 by a pivotally supported locking member 530 for locking the ignition operation of the operation member 20, and a rotation of the locking member 530. A regulating means 26 comprising a push button-type regulating member 3 32 for regulating the operation is provided. The locking member 5 is moved while pushing the regulating member 3 32 from the projecting regulating position to the non-regulating position. It is linked so as to allow the ignition operation of the operation member 20 when the 30 is turned from the lock position to the release position.

The locking member 530 has, on both sides, a substantially semicircular side plate 530a having an outer periphery formed in an arc, and the operating member is provided at one end of the side plate 530a. Hook-shaped lock part that can be inserted into 20 opening 20 e 5 30 b is formed. The two side plates 5300a have an arc portion integrally connected by a peripheral wall 5300c, and a space is formed therein. Further, a shaft portion 530d is provided on the side surface of the both side plates 530a at the center of rotation, and the shaft portion 530d is formed in the elongated bearing portion 2a of the main body portion 2. (See Fig. 4), and is rotatably supported at the lock position and the release position. A part of the peripheral wall 530 c projects outward from the window 2 b of the main body 2, and a surface portion of the peripheral wall 530 c serves as a finger-holding portion for rotating operation, and is provided in a lateral direction. A concave groove is formed. Further, a sliding groove 5300 g is formed in the side plate 5350 a from the outer peripheral portion toward the center portion, and a later-described regulating member 332 is mounted. On the outer surface of one of the side plates 530a, a panel receiver 530e having two projections is provided, and the linear portion of the torsion panel 31 as an urging means is engaged, and the lock is provided. It is urged in the clock direction.

 On the other hand, as shown in FIG. 18, the regulating member 3332 is formed in the shape of a square tubular push button, and is formed outside the sliding groove 5300g of the locking member 5330. It is slidable between a restricted position where the distal end pressing portion 332a protrudes outward and a non-restricted position where it is immersed. Inside the restricting member 33, elastic means 33 by coil spring is contracted between the restricting member 33 and a spring receiver 530 h formed on the peripheral wall 53OC of the locking member 53O. It is urged to the regulating position, and the leg 332b of the regulating member 332 locks to the rear surface of the peripheral wall 5300c and stops at the regulating position.

 Protrusions 3332c are provided on both sides of the restricting member 332. The restricting portions 3332c are cut at the restricting positions on the sides of the window 2b of the main body 2. The locking member 2 f (see FIG. 17), which is formed with a notch, is inserted and locked to restrict the rotation of the locking member 530, and the pressing portion 332 a is pushed in. It is formed so as to release the lock between the restricting portion 3332c and the locking portion 2f at the restricting position.

The operation of the ignition control mechanism of the present embodiment as described above will be described. I do. First, the state shown in FIG. 16 indicates that the regulating member 332 is in the regulating position and the locking member 530 is in the locking position (leaving state), and the operating member 20 is in the non-operating state. In this state, the locking portion 530b of the locking member 530 projects inwardly of the operating member 20 and engages with the locking portion 20f, and the ignition operation of the operating member 20 is performed. Cannot be performed. In a state where the restricting portion 332c of the restricting member 332 is engaged with the locking portion 2f of the main body 2 and the restricting member 332 is not pushed in, the locking member 5330 is turned. Operation is impossible. Next, when the igniter 500 is used, as shown in FIG. 19A, the pressing portion 332a of the regulating member 3332 is moved to the non-regulated position against the coil spring 33. When the push-in operation is performed, the regulating portion 332c moves from the locking portion 2f of the main body 2 to the inside position and comes off, and the rotation of the locking member 5300 in the releasing direction is allowed. You. Then, as shown in FIG. 19 (B), the peripheral wall 53 0 c of the locking member 5 30 is released in the forward releasing direction while the pressing portion 3 32 a of the regulating member 3 32 is still pushed in. When the rotary operation is performed, the mouth portion 53 Ob moves to the release position, and the push-in ignition operation of the operation member 20 becomes possible.

 When the operating member 20, the locking member 530, and the regulating member 332 are released to end use, the operating member 20 protrudes and returns to the initial position, and the locking member is locked. The member 530 is moved to the lock position by the urging force of the urging means 31 (torsion screw). When the locking member 530 returns to the lock position, the restricting portion 3332c of the restricting member 3332 is inserted into and engaged with the locking portion 2f to return to the restricting position. It automatically returns to the initial state where the movement of the locking member 530 is also disabled.

 The surface of the regulating portion 332 c of the regulating member 332 is formed into a curved surface so that the insertion into the engaging portion 2 f is reliably performed and the regulating portion is also formed. 3 3 2c moves smoothly when sliding on the inner surface of main body 2.

In the present embodiment, the regulating member 33 is pressed to form a button. This makes the pushing operation easier.

Claims

The scope of the claims  1. Equipped with an ejection nozzle for ejecting gas, a gas tank, a valve mechanism for opening and closing gas supply from the gas tank to the ejection nozzle, and a piezoelectric unit for generating a discharge voltage for ignition. In addition, in an igniter in which an operating member that drives the valve mechanism and the piezoelectric unit to perform an ignition operation is slidably installed,  An opening means rotatably supported by the igniter main body and being rotated between an opening position for locking the ignition operation of the operating member and a release position allowing the ignition operation; An igniter comprising: an urging means for urging the hook means in a direction of the mouth position.  2. A jet nozzle for jetting gas, a gas tank, a valve mechanism for opening and closing gas supply from the gas tank to the jet nozzle, and a piezoelectric unit for generating a discharge voltage for ignition. And an operating member for driving the valve mechanism and the piezoelectric unit to perform an ignition operation and slidably installed.  Locking means rotatably supported by the igniter body and being rotatably operated between a lock position for locking the ignition operation of the operation member and a release position allowing the ignition operation;  An urging means for urging the locking means in the direction of the locking position; and a rotatable body integrally rotatable with the locking means. Restricting means for restricting the rotation of the locking means to the release position, and moving to a non-restricted position for releasing the engagement between the restricting portion and the main body by a pushing operation;  And a flexible means for urging the regulating portion of the regulating means in the direction of the regulating position, Pressing the restricting means from the restricting position to the non-restricting position and operating the locking means from the locking position to the releasing position to allow the ignition operation by the operating member. A featured igniter. 3. The restricting means is formed of an elastic piece fixed to the locking means, and constitutes elastic means for urging the restricting portion in the direction of the restricting position by the elasticity of the elastic piece; 3. The igniter according to claim 2, wherein the restricting portion is operated from the restricted position to the non-restricted position by the pushing deformation of the igniter.  4. The igniter according to claim 3, wherein the regulating means is formed as a separate part from the locking means.  5. The igniter according to claim 3, wherein the restricting means is formed integrally with the locking means.  6. The igniter according to claim 3, wherein a locking portion of the main body portion to which the restricting portion of the restricting device is locked is formed so as to protrude in a rotation direction of the locking device.  7. The restricting means is slidably supported by the locking means and urged in the protruding direction by the elastic means, and the restricting portion is locked to the main body at the restricting position, and is pushed into the non-restricting portion. The igniter according to claim 2, wherein the lock between the restricting portion and the main body is released at the position.  8. The method according to claim 2, wherein the restricting means automatically returns to the restricted position from the non-restricted position with the return rotation of the locking means from the release position to the locked position. Igniter.  9. The igniter according to claim 1 or 2, wherein a gas pipe passes through the inside of the locking means.  10. The igniter according to claim 1, wherein the ignition operation of the operating member can be performed repeatedly by continuing the releasing operation of the locking means.  11. The locking means has a locking portion that locks the ignition operation by interfering with a part of the operating member at the locking position, and when the locking means is turned to the release position, the locking means is turned off. The igniter according to claim 1, wherein the locking portion moves to a position where the locking portion does not interfere with the operation member. 12. The locking means is supported so that the center of rotation is movable. The igniter according to claim 11, characterized in that: