WO2003008868A1 - Ignitor - Google Patents

Abstract

An ignitor (1) capable of being ignited by the operation of an operating member (20), automatically returning to a locked state after ignited, and capable of improving operability and increasing assemblage, comprising a lock member (25) for locking the operating member (20) in unused state, wherein the lock member (25) moving in the direction of igniting operation integrally with the operating member (20) is installed so as to be moved between a lock position and an unlock position, a lock part (25b) extended in the lockingly moving direction of the lock member (25) interferes with the engagement part (6b) of an ignitor body (2) to lock the igniting operation of the operating member (20), the lock member (25) is energized by an energizing member (26) to the lock position, and the operating member (20) is slid together with the lock member (25) in the state of an ignition lock released by the operation of the lock member (25) to perform the igniting operation.

Description

 5¾ Nitta ¾ Ignition Equipment Technical Field

 The present invention relates to an ignition device for emitting a flame from a gas ejection nozzle by an operation of igniting an operation member. This is related to a mechanism that releases the ignition lock to enable ignition.

 Background art

 Ignition devices, such as ignition rods, can be easily ignited by pushing the operating member, but a lock mechanism is provided to prevent accidental ignition or to prevent accidental ignition. Installation is required, and so far ignition devices with various mechanisms have been proposed.

 For example, in Japanese Patent Application Laid-Open No. 8-61673, a lock member that locks the ignition port due to a lock portion interfering with a part of the operation member can be moved in a direction intersecting the moving direction of the operation member. And an urging member for urging the lock member in the locking direction is provided, and the hook member has a releasing operation portion movable against the urging member. There is disclosed an ignition device having a mechanism in which a part is protruded in the vicinity of an operation part of an operation member.

 Further, in the lock mechanism disclosed in U.S. Pat. No. 6,217,313, a lock member is slidably provided in a part of an operation portion of an operation member for performing an ignition operation. When the arm is in the locked position by the biasing member, the tip of the arm portion extending into the operation member interferes with a part of the piezoelectric unit to be in a licking state. The operation member can be operated after the interference is removed.

However, in the former lock mechanism, the lock member and a biasing member by a spring for biasing the lock member in the direction of the lip are separately assembled to the instrument body, which is a problem in terms of their assemblability. Productivity in mass production It is an obstacle when trying to improve In addition, the ignition operation requires a multi-step operation, and there is a drawback in its operability.

 In other words, it is complicated to assemble the two components, the lock member and the urging member, separately from the operating member, and it is necessary to assemble the urging member in a state where it is deformed to some extent. There is a problem that it is difficult to efficiently assemble these components inside the device main body that is provided. In addition, the lock release operation during the ignition operation in the normal use state is a multi-stage complicated operation in which the release operation part is a projection that is separated from the operation member, and the release operation and the push-in operation of the operation member lack linkability. It may be difficult to obtain stable ignition due to a difficult operation.

 In the latter lock mechanism, the arm of the lock member extends in the moving direction of the operating member and interferes with the piezoelectric unit inside the operating member. Therefore, when the internal space of the operating member is small, As the range of movement of the lock member becomes smaller, it is difficult to obtain stable operability between the lock position and the release position, and the interference between the arm and the piezoelectric unit is so small that a secure lock and release state can be achieved. It is difficult to secure, and the function may be impaired if the tip wears out after many uses.

 In view of this point, in the present invention, with regard to performing ignition by operating the operation member, the ignition port, the release of the port, and the automatic return can be performed while securing good adhesion, and the portability has been improved. It is an object of the present invention to provide an ignition device having a locking mechanism.

 Disclosure of the invention

The ignition device of the present invention includes a device main body, a gas tank unit, a valve mechanism for opening and closing gas supply from the gas tank unit to a gas ejection nozzle, an ignition device for supplying electric power for electric ignition, and performing an ignition operation. An ignition device comprising a slidable operating member, wherein the operable member moves integrally with the operating member in the ignition operation direction and is movably installed between a lock position and an unlock position; A lock portion that is provided on the lock member so as to extend in the direction of movement of the lip, and that locks the ignition operation of the operation member by interfering with an engagement portion formed on the appliance body; An operating member for operating the lock member to release the ignition lock, slide the operating member together with the lock member to perform an ignition operation, and perform a return movement of the operating member. Companion Characterized in that the return to the locking member is automatically locked position Te is there.

 It is preferable that the operating member, in which the hook member and the urging member are assembled, is assembled to the instrument body.

 It is preferable that the lock member is installed integrally with the operation member also as an operation portion of the operation member.

 The lock member and the operation member may be combined so that a part of the ignition device can be moved to a position where ignition is possible. Further, the lock member may be provided in the operation member.

 On the other hand, it is preferable that the engagement portion of the appliance main body is formed of a member extending in parallel with the ignition operation direction of the operation member, and a lock portion of the hook member is locked at a distal end thereof.

 It is preferable that the lock portion of the hook member is movable in the ignition operation direction in a state where the hook release state is maintained by the engagement portion of the appliance body.

 The engagement portion of the device main body may include a vertical groove through which the lock portion of the hook member passes.

 Further, the engaging portion of the device main body may be formed and disposed inside the device main body. Further, the lock portion of the lock member may be disposed inside the device main body.

 The ignition device is composed of a piezoelectric unit, a battery-type discharge unit, a current-carrying heating unit, and the like, and performs power supply and ignition according to operation of an operation member.

In the ignition device of the present invention, when the hook member is in the locked position by the biasing member, the lock portion interferes with the engagement portion of the device main body, and the movement of the operation member is prevented to prevent ignition. Locks are going on. When the lock member is operated to the release position against the urging member, the lock portion also moves to release the interference with the engagement portion, and thereby the operation member can be moved. The emitted fuel gas is ignited. When the operation of the operating member and the lock member is released, the lock portion of the buckle member moves to a position where it interferes with the engaging portion of the appliance body by the urging of the urging member as the operating member returns. Then, the ignition port is automatically returned to the above-mentioned ignition opening state. When not in use, the ignition operation of the operation member is always disabled to prevent inadvertent ignition. Period lock function.

 According to the ignition device of the present invention, since the unlocking operation of the lock member is required prior to the ignition operation of the operation member, it is difficult for a person who does not know how to use the lock to release the lock. And automatically return to the locked state during return movement, so that it is not left in the unlocked state, and in the fire extinguishing state, a reliable locked state is ensured to increase reliability. I can do it. In addition, by extending the lock portion of the lock member in the lock movement direction and interfering with the engagement portion of the appliance body to obtain the lip-locking state, a wide range of movement of the lip-lock member can be ensured, thus ensuring reliable operation. A locked state is obtained and the operability to the unlock position is excellent. Further, the unlocking operation of the lock member and the pushing operation of the operating member can be performed in a coordinated manner, and the ignition operation can be performed in a series instead of a multi-step operation, so that stable ignition with excellent operability can be obtained.

 Furthermore, the lock member and the urging member can be assembled in advance to the instrument body after being integrally assembled with the operation member, so that efficient assembly can be performed and productivity in mass production can be improved.

 Simple words of drawings

 FIG. 1 is a cross-sectional view of a main part showing an ignition port state of an ignition device according to a first embodiment of the present invention,

 FIG. 2 is a sectional view of a main part showing the ignition operation state of FIG. 1,

 FIG. 3A is an exploded perspective view of the lock mechanism of FIG. 1,

 FIG. 3B is a perspective view of an assembled state of the lock mechanism of FIG. 1,

 FIG. 4 is a cross-sectional view of a main part showing an ignition port state of an ignition device according to a second embodiment of the present invention,

 FIG. 5 is a sectional view of a main part showing the ignition operation state of FIG. 4,

 FIG. 6A is an exploded perspective view of the lock mechanism of FIG. 4,

 FIG. 6B is a perspective view of an assembled state of the lock mechanism of FIG. 4,

 FIG. 7 is an essential part cross-sectional view showing a state of a spark plug of an ignition device according to a third embodiment of the present invention,

FIG. 8 is a cross-sectional view of a principal part showing the unlocked state of FIG. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

 <First embodiment>

 Figs. 1 to 3B show an ignition device using an ignition rod according to this embodiment. Fig. 1 is a cross-sectional view of a main part, Fig. 2 is a cross-sectional view of an operating state, and Figs. 3A and 3B are perspective views of a lock mechanism. It is a figure.

 The ignition device (ignition rod) 1 of the present embodiment is composed of a device main body 2 and a rod-shaped extending end portion 3 (a tip portion is not shown). The appliance main body 2 is formed of a gas tank part 5 molded of synthetic resin and an intermediate case 6 which is vertically divided at the center substantially in front of this, and one of the intermediate cases 6 is shown in FIGS. 1 and 2. Is shown. A gas storage chamber (not shown) for storing high-pressure gas such as butane gas is provided in the gas tank section 5 on the base end side (the right side in the figure) of the apparatus main body 2, and an upper wall portion of the gas storage chamber is provided. A valve mechanism 8 for opening and closing gas supply is provided in the apparatus. The valve mechanism 8 includes a nozzle member 10 interposed in a gas passage through which gas in the gas storage chamber is supplied. The tip of the nozzle member 10 is engaged with one end of a rotary lever 14 for opening the nozzle member 10, and the nozzle member 10 moves forward by the operation of the rotary lever 14. Then, while the gas passage is opened to supply the gas, the nozzle member 10 is moved backward by the spring provided in the pulp mechanism 8 to close the gas passage and stop the gas supply. The pulp mechanism 8 has a flame adjusting knob 13 protruding to the outside, and the rotation thereof can adjust the gas supply amount, that is, the size of the flame.

 Further, a connector member 16 is disposed on an 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 tip 3 and is connected to a gas ejection nozzle (not shown) to supply gas. An operating member 20 slidable parallel to the center line of the pulp mechanism 8 is provided on the intermediate case 6 of the instrument body 2 on a side of the pulp mechanism 8. A piezoelectric unit 22, which is one of the ignition devices, is provided between the inside of 0 and the gas tank unit 5.

The operating member 20 has a box-shaped base 2 Ob slidably supported inside from the opening of the intermediate case 6, and a lock member 25 described below is provided on the front surface of the box-shaped base 20 b. Maneuver It is also provided as a work part (see Fig. 3B). An end of the box-shaped base 2 Ob on the pulp mechanism 8 side is provided with a leg 20 d extending in the sliding direction. The leg portion 20d is linked to the end of the turning lever 14 when the ignition is moved, so as to turn it.

 The rotary lever 14 is formed in a substantially L-shape, is rotatably held around a fulcrum of an intermediate portion, and is rotated by a leg portion 20 d of the operation member 20. Yes, the nozzle member 10 of the pulp mechanism 8 is moved forward so as to be pulled out in the opening direction by the rotation accompanying the ignition operation.

 The piezoelectric unit 22 is for supplying a discharge voltage, and the extending and contracting slide portion 22 a is located above the inner wall 20 e in the box-shaped base portion 20 b of the operation member 20. The sliding portion 22 a is immersed and moved with the retreating operation of the operation member 20 to generate a discharge voltage. A lead wire 23 connected to one pole of the piezoelectric unit 22 is connected to a discharge electrode (not shown). The other pole is connected to a gas ejection nozzle via a path (not shown).

 The intermediate case 6 is integrally provided with a protective frame 6a that surrounds a space where a finger is inserted at the front side of the operation member 20 on a side of a portion linearly connected to the extension portion 3. In addition, on the inner surface of the intermediate case 6 (apparatus body 2) above the front end of the operating member 20 in the non-operating state, it protrudes from both sides in the center direction parallel to the ignition operation direction of the operating member 20. It is provided with engaging portions 6b, 6b of the provided plate members. As shown in FIG. 3A, the inner surfaces of the engaging portions 6b, 6b on both sides are close to each other at a central portion with a width narrower than a locking portion 25b of a hook member 25 described later. The front end face f of the engaging portions 6b, 6b can be locked with the lock portion 25b.

 Next, a lock mechanism for restricting the ignition operation of the operation member 20 is provided for the ignition device 1 having the above-described structure. The lock mechanism includes a lock member 25 attached to the operation member 20 for locking or releasing the ignition operation of the operation member 20 and an urging member 26 using a coil spring.

The lock member 25 is mounted on the entire front surface of the operation member 20 so as to be slidable in a direction substantially perpendicular to the moving direction and also as an operation part thereof so as not to be separated from the operation member 20. I have. As shown in FIG. 3A, the lock member 25 has a substantially rectangular substrate. An operation in which a lock portion 25b extending upward (in the lock movement direction) and protruding is provided at an upper end portion of the substrate 25a, and a front surface of the substrate 25a is formed in a curved shape, and an uneven shape for finger hanging is provided. The part 25c (unlocking operation part and ignition operation part) is formed. In addition, sliding protrusions 25 d are provided on both sides of the upper portion of the rear surface of the substrate 25 a so as to protrude rearward and extend in a vertical direction. Stop projections are formed. Further, the back surface of the substrate 25a below the sliding protrusion 25d is provided with a receiving portion 25e which protrudes rearward in a plate shape and has a cylindrical protrusion provided on the lower surface.

 On the other hand, upper portions of the front end of the box-shaped base portion 20b of the operation member 20 are provided with guide grooves 20f extending vertically on both sides. The sliding protrusion 25 d of the lock member 25 is pushed into and fitted into the guide groove 20 f from the front side. At this time, the receiving portion 25. In a state where the urging member 26 of the operation member 20 is mounted downward, the urging member 26 is inserted into a space below the middle wall 20e of the box-shaped base portion 20b of the operation member 20 and assembled as shown in FIG. 3B.

 By attaching the lock member 25 to the operation member 20, the lock member 25 can be moved up and down between an upper lock position (see FIG. 1) and a lower unlock position (see FIG. 2). The lock member 25 is locked from the operation member 20 by the urging force of the urging member 26 compressed between the receiving portion 25 e of the lock member 25 and the opposing inner wall of the box-shaped base 20. The part 25b is biased in the direction of the upper locking position where it protrudes.

 Further, when the operating member 20 having the above-described lock member 25 attached thereto is assembled to the intermediate case 6, the lock portion 25b is disposed in the intermediate case 6 at the lock position urged upward, It interferes with the front end of the engaging portion 6b, and when it moves to the unlock position below, the interference between the two is released, and the lock is released along the lower surface of the engaging portion 6b with the push-in ignition operation. The lock portion 25b in the state is configured to move.

The operation of the above-described hook mechanism of the ignition device 1 of the present embodiment will be described. First, the state shown in FIG. 1 is the lock position (left position) in which the lock member 25 has risen. In this state, the moving operation for igniting the operation member 20, specifically, the lock member 25 Even if you operate the front operation part 25 c of the The lock portion 25b of the lock member 25 comes into contact with the engagement portion 6b of the appliance main body 2 and the ignition port is locked, and the pushing operation is impossible and the ignition operation cannot be performed.

 Next, when the ignition device 1 is used, as shown in FIG. 2, when the lock member 25 is slid in the direction orthogonal to the operation direction of the operation member 20, that is, in the downward unlocking direction, Then, the lock portion 25b moves downward from the front end of the engagement portion 6b to release the interference, the ignition lock is released, and the push-in ignition operation of the operation member 20 becomes possible. By pushing in the lock member 25 and the operation member 20 while maintaining this state, the gas is supplied and the discharge ignition is performed to ignite.

 When the user releases the operating part 25c of the hook member 25 to end use, the operating member 20 projects and returns to the initial position by the spring in the piezoelectric unit 22, and is locked. The member 25 is moved to the lock position by the urging force of the urging member 26, and automatically returns to the ignition port state shown in FIG. 1 in which the lock portion 25b interferes with the engagement portion 6b.

Second Embodiment>

 FIG. 4 is a cross-sectional view of a main part of an ignition device provided with a hook mechanism according to another embodiment, FIG. 5 is a cross-sectional view showing an operating state, and FIGS. 6A and 6B are perspective views of the hook mechanism. .

 The buckling mechanism of the igniting device 11 of the present embodiment includes an operating member 20, a piezoelectric unit 22 (ignition device), and an urging member, except that the forms of the buckling member 27 and the engaging portion 6 c are different. The members 26 and the like are configured in the same manner as in the first embodiment, and the same portions are denoted by the same reference numerals and description thereof will be omitted.

Further, in the present embodiment, the lock position, the unlock position, and the force ^s of the lock member 27 are configured to be opposite to the lock member 25 of the above-described first embodiment.

The flap member 27 is mounted on the entire front surface of the operation member 20 so as to be slidable in a direction substantially perpendicular to the moving direction thereof and also as an operation part thereof so as not to be separated from the operation member 20. ing. As shown in FIG. 6A, the lock member 27 has a substantially T-shaped lock portion 27 b extending upward (in the lock movement direction) and protruding from the upper end of the substantially rectangular substrate 27 a. The front surface of the substrate 27a is formed in a curved shape, and an operation portion 27c provided with a 囬 convex shape for finger hanging is formed. Also, on both sides of the upper part of the back of the board 27a, A sliding projection 27 d that projects rearward and extends in the vertical direction is provided. The sliding projection 27 has a retaining projection that protrudes laterally at the tip. Further, near the lower end of the back surface of the substrate 27a, there is provided a receiving portion 27e which protrudes rearward in a plate shape and has a cylindrical projection attached to the upper surface. The lock portion 27 b is provided in a substantially T shape by a narrow connecting neck portion erected at the center of the upper end of the substrate 27 a and a horizontal bar portion extending to both sides at the upper end thereof. It becomes.

 On the other hand, as shown in FIG. 6A, the engaging portions 6c, 6c formed by the plate-like members formed on the intermediate case 6 are provided at the upper part of the front end of the operating member 20 in the non-operation state.

The inner surface of the (device main body 2) protrudes from both sides in the center direction parallel to the ignition operation direction of the operating member 20, and the inner surfaces of the engaging portions 6 c, 6 c on both sides have vertical grooves 6 in the center. The locking portions 27b face each other with a space wider than the width of the connecting neck portion so that d is formed. The front end surfaces of the engaging portions 6c, 6c and the horizontal bar portion of the lock portion 27b can be locked.

 Assembling of the lock member 27 to the operation member 20 as described above is performed by sliding the locking protrusion 27 of the hook member 27 from the front side with respect to the guide groove 20 f of the box-like base 20 b. d Pushed in and fitted, the receiving part 27 e is the middle wall of the box-shaped base 20 b of the operating member 20 with the biasing member 26 by a coil spring mounted on the cylindrical projection upward. It is inserted into the space below 20 e and assembled as shown in FIG. 6B. As a result, the lock member 27 can be moved up and down between a lower lock position (see FIG. 4) and an upper unlock position (see FIG. 5), and the receiving portion 27 e of the lock member 27 and the box can be moved. By the urging force of the urging member 26 contracted between the base portion 20b and the middle wall 20e, the lock member 27 locks the lower portion of the lock portion 27b close to the operation member 20. It is biased in the direction of the position.

Further, when the operating member 20 having the above-described lock member 27 attached thereto is assembled to the intermediate case 6, the lock portion 27b is disposed in the intermediate case 6 at the lock position urged downward. The horizontal bar portion interferes with the front end of the engaging portion 6c, and when the upper bar is moved to the unlock position, the interference between the two is released. The horizontal bar portion of the lock portion 27b in the unlocked state above the portion 6c is configured so that the connecting neck portion of the lock portion 27b moves in the vertical groove 6d. The operation of the above-described hook mechanism of the ignition device 11 of the present embodiment will be described. First, the state shown in FIG. 4 is the lock position (the left position) where the lock member 27 is lowered. In this state, the operation for ignition of the operation member 20 is performed. Even if the front operation part 27 c of the lock member 27 is operated so that the operation member 20 is pushed in, the horizontal bar part of the lock part 27 b of the lock member 27 contacts the engagement part 6 c of the instrument body 2. The ignition port is locked, the pushing operation is impossible and the ignition operation cannot be performed.

 Next, when the ignition device 11 is used, as shown in FIG. 5, when the lock member 27 is slid in the direction orthogonal to the operation direction of the operation member 20, that is, in the upward unlocking direction, The horizontal bar of the lock part 27 b moves upward from the front end of the engaging part 6 c to release the interference, the ignition port is released, and the connecting neck of the port part 27 b is a vertical groove. In accordance with 6 d, the push-in ignition operation of the operation member 20 becomes possible. By pressing the lock member 27 and the operation member 20 while maintaining this state, gas supply and discharge ignition are performed and ignition is performed.

 When the operator releases the operating part 27 c of the lock member 27 to end use, the operating member 20 projects and returns to the initial position by the spring in the piezoelectric unit 22, and returns to the initial position. 7 is moved downward to the locked position by the urging force of the urging member 26, and automatically returns to the ignition locked state in FIG. 4 where the horizontal bar of the lock portion 27b interferes with the engagement portion 6c.

<Third embodiment>

 FIG. 7 is a cross-sectional view of a main part of an ignition device provided with a lock mechanism according to still another embodiment, and FIG. 8 is a cross-sectional view showing an unlocked state.

 The ignition device (ignition rod of another form) 12 of the present embodiment is composed of a device main body 4 having a different form, and an extended end portion 7 (a tip portion is not shown) extending in a rod shape from the center of the device main body 4. Be composed. The appliance body 4 is formed of a gas tank part 9 made of synthetic resin and an intermediate case 60 which is vertically divided at the center in front of this, and one of the intermediate cases 60 is shown in FIGS. 7 and 8. Is shown. The intermediate case 60 is formed in a ring shape with a finger insertion window 60a opened in the center.

The gas tank 9 at the base end (right side in the figure) of the instrument body 4 has a gas storage chamber (not shown) for storing high-pressure gas such as butane gas. A pulp mechanism 8 similar to that described above for opening and closing gas supply is provided. The pulp mechanism 8 includes a nozzle member 10 that opens and closes a similar gas passage, a rotary lever 14 that opens the nozzle member 10, and a flame adjustment knob 13. A connector member 17 is arranged at the foremost part of the nozzle member 10 and connected to a gas pipe 19 (hatching is omitted in FIGS. 7 and 8). Is connected to a gas ejection nozzle (not shown) in the, and supplies gas.

 An operation member 30 that can slide freely in parallel to the side of the valve mechanism 8 and a piezoelectric unit 32 that is one of the ignition devices are provided. The operating member 30 has a box-shaped base 3Ob slidably supported inside from an opening facing the finger insertion window 60a of the intermediate case 60, and the box-shaped base 30b is A lock member 29 is provided on the front surface also as an operation part.

 In the piezoelectric unit 32, a slide portion 32a is fitted to the upper back of a box-shaped base portion 30b of the operation member 30, and a protrusion portion 32b is provided on the slide portion 32a. As the operation member 30 moves backward, the slide portion 32 a moves backward to generate a discharge voltage, and the protrusion 32 b is attached to the end of the substantially L-shaped rotary lever 14. The nozzle member 10 is brought into contact and rotated to move the nozzle member 10 forward in the opening direction. A lead wire 33 connected to a terminal plate 35 connected to one of the poles of the piezoelectric unit 32 is connected to a discharge electrode (not shown), and the other pole is connected to the rotating lever 1 by the protrusion 32b. 4. Connected to a gas outlet nozzle (not shown) via a connector member 17 and a lead wire 34 inserted into the gas pipe 19.

 The intermediate case 60 is provided on one side of a finger insertion window 60 a at an upper portion of a front end of the operation member 30 in a non-operation state, and a case disposed in parallel with the ignition operation direction of the operation member 30. And an engaging portion 60b formed by a plate-shaped member on the wall surface. A through-hole 60c into which the hook portion 29b of the hook member 29 can be inserted is opened at the distal end portion of the engaging portion 60b, and the front end face of the engaging portion 60b. (The rear end of the opening of the through hole 60c.) Force Lockable with the lock portion 29b of the lock member 29.

A lock member 29 for locking or releasing the ignition operation of the operation member 30 is mounted on the operation member 30 and is urged in a locking direction (upward in the figure) by an urging member 26 by a coil spring. The lock member 29 is also mounted on the entire front surface of the operation member 3 ◦ excluding the frame portion so as to be slidable in a direction substantially perpendicular to the movement direction and also as an operation portion so as not to be separated from the operation member 30. Have been. The hook member 29 has a lock portion 29b extending upward (in the lock movement direction) and protruding into a pin shape at the upper end of the substantially rectangular substrate 29a. The operation section 29c is formed with a curved surface and provided with an uneven shape for finger hanging. On the upper side of the upper surface of the back surface of the substrate 29a, there is provided a sliding protrusion 29d formed in the same manner as in the previous example, protruding rearward and extending vertically. Further, a receiving portion 29 e is provided on the rear surface of the upper end portion of the substrate 29 a so as to protrude rearward in a plate shape, and receives the upper end of the urging member 26 on the lower surface.

 On the other hand, the upper half of the box-shaped base portion 30b of the operation member 30 is formed in a concave portion 30c, and has a guide groove 30f extending vertically in both sides thereof. The sliding protrusion 29 d is inserted into the guide groove 30 f, and the lock member 29 is assembled to the operation member 30. At this time, the bottom of the receiving portion 29 e and the concave portion 30 c are fitted. An urging member 26 is mounted between the inner wall 30e and the inner wall 30e.

 By attaching the lock member 29 to the operation member 30, the lock member 29 can move up and down between an upper lock position (see FIG. 7) and a lower unlock position (see FIG. 8). The locking member 29 is actuated by the urging force of the urging member 26 compressed between the receiving portion 29 e of the hook member 29 and the middle wall 30 e of the box-shaped base 30 b. The lock portion 29b is urged from 30 toward the lock position where the lock portion 29b projects. Further, when the operating member 30 having the above-described lock member 29 attached thereto is assembled to the intermediate case 60, the lip portion 29b is moved to the intermediate case 60 at the lock position urged upward. Into the through-hole 60c, and interferes with the front end of the engaging portion 60b, so that when it moves to the unlocked position below, the lip portion 29b comes out of the through-hole 60c. Thus, the interference between the two is released, and the unlocked lock portion 29b moves along the lower surface of the engagement portion 60b along with the push-in ignition operation.

The operation of the above-described hook mechanism of the ignition device 12 of the present embodiment will be described. First, the state shown in FIG. 7 is the lock position (the left position) where the lock member 29 is raised. In this state, the operation for ignition of the operation member 30 is performed. 2 Operate the front operation section 2 9 c of 9 so that the operation member 30 is pushed in. Also, the locking portion 29b of the lip member 29 comes into contact with the engaging portion 60b of the appliance body 4 and the crater is lit, so that the pushing operation is impossible and the ignition operation cannot be performed.

 Next, when the ignition device 1 is used, as shown in FIG. 8, when the lock member 29 is slid in a direction orthogonal to the operation direction of the operation member 30, that is, in a downward unlocking direction, the sliding operation is performed. However, the locking portion 29b moves downward from the front end of the engaging portion 60b to remove the interference, the ignition lock is released, and the push-in ignition operation of the operating member 30 is enabled. By pressing the lock member 29 and the operation member 30 while maintaining this state, the gas is supplied and the discharge ignition is performed to ignite.

 When the operator releases the operating part 29c of the lock member 29 to end use, the operating member 30 protrudes and returns to the initial position by the spring in the piezoelectric unit 32, and returns to the initial position. 9 moves to the lock position by the urging force of the urging member 26, and the lock portion 29b is inserted into the through hole 60c and interferes with the engagement portion 60b. Automatically return to.

 In each of the embodiments described above, the lock members 25, 27, 29 are mounted on the entire front surface of the operation members 20, 30, and are integrally disposed so as to also serve as the operation portion of the ignition operation. However, on the front surface of the operation member 20, an operation portion fixed to the operation member is provided, a lock member is slidably mounted on a part of the operation portion, and the lock member is disposed in the operation member. You may make it.

 In addition, as the ignition device for performing electric ignition, the power of a piezoelectric unit 22, 32 having a piezo element for generating a discharge voltage as described above, and a battery type having a discharge circuit for generating a discharge voltage using a battery as a power supply. A discharge unit, an energizing heating unit that uses a battery as a power source to supply power to the heating wire, and the like can be used.These ignition devices open and close the contacts according to the operation of the operating member, and return the operating member. A spring is attached.

Claims

Scope of Word (1) Apparatus body, gas tank section, pulp mechanism for opening and closing gas supply from the gas tank section to gas ejection nozzle, ignition device for supplying electric power for electric ignition, and slidable operation for performing ignition operation In an ignition device comprising a member and  A lock member that moves together with the operation member in the ignition operation direction and is movably installed between a lock position and a lock release position;  A lock portion that is provided on the lock member so as to extend in a direction in which the hook moves, and that locks an ignition operation of the operating member by interfering with an engagement portion formed in the appliance body; An urging member for urging the lock position.  In a state in which the ignition member is operated and the ignition member is disengaged, the ignition member is slid together with the lock member to perform an ignition operation, and the lock member is moved with the return movement of the operation member. The ignition device automatically returns to the locked position.  (2) The ignition device according to claim 1, wherein the operating member, in which the lock member and the urging member are assembled, is assembled to the device main body.  (3) The ignition device according to (1) or (2), wherein the lock member is installed integrally with the operation member also as an operation portion of the operation member.  (4) The lock device according to claim 1, wherein the lock member and the operation member are combined so that a part of the ignition device can be moved to a position where ignition is possible. Ignition equipment.  (5) The ignition device according to claim 1 or 2, wherein the lock member is disposed in the operation member.  (6) The engagement portion of the appliance main body is a member extending in parallel with the ignition operation direction of the operation member, and a lock portion of the hook member is locked at a distal end portion. The ignition device described in 1.  (7) The lock portion of the lip member is movable in the ignition operation direction in a state where the lip release state is maintained by the engagement portion of the appliance body. Ignition equipment. (8) The engagement portion of the device main body has a vertical groove through which the lock portion of the lock member is inserted. 7. The ignition device according to claim 6, wherein the ignition device is provided.  (9) The engaging portion of the appliance main body is a wall member of the appliance main body extending in parallel with the ignition operation direction of the operating member, and a lock portion of the hook member is engaged with a tip end having a through hole opened. The ignition device according to claim 1, wherein the ignition device is stopped.  (10) The ignition device according to claim 1 or 2, wherein the engagement portion of the device main body is disposed inside the device main body.  (11) The engaging portion of the appliance main body is a member disposed inside the appliance main body so as to extend in parallel with the ignition operation direction of the operating member, and has a tip portion provided with a lock of the hook member. The ignition device according to claim 1, wherein the portion is locked.  (12) The ignition device according to claim 1 or 2, wherein the lock portion of the lock member is disposed inside the device main body.  (13) A request, wherein the engaging portion of the appliance main body is disposed inside the appliance main body, and the lock portion of the hook member is disposed inside the appliance main body. An ignition device according to item 1 or 2.