JP3785853B2 - Igniter - Google Patents

Abstract

In an igniter having a locking member for locking an actuating member that is operated to ignite the lighter, the parts composing the locking member provide for outstanding operability over a long period of time, improved reliability, manufacturability and cost-effectiveness. The lighter comprises a slideably mounted actuating member running between a valve means and an piezo-electric spark producing unit, in which the locking member is rotatably mounted in the body of the lighter and propped toward the locked position by a propping means, and when the locking means is rotated to the unlocked position, the ignition operation of the actuating member is permitted. <IMAGE>

Description

[0001]
BACKGROUND OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an igniter in which a flame is ejected from an ejection nozzle by operation of an operation member, and normally the ignition operation of the operation member is locked while the lock is released during use.
[0002]
[Prior art]
Conventionally, as shown in, for example, Japanese Patent Laid-Open No. 8-68536, in an igniter, a push button-like lock means for locking the operation of an operation member that performs an ignition operation is provided, and when the lock means is not operated, the operation member Proposed structure with an ignition lock function provided so that the ignition operation can be locked and can be ignited when the lock means is pushed in, and the lock means is automatically returned to the lock position when the lock means is released. Has been.
[0003]
Further, as disclosed in Japanese Patent Application Laid-Open No. 11-63497, an igniter is provided with a lever-like lock unit that locks the operation of the operation member that performs the ignition operation. When the lock unit is not operated, the ignition operation of the operation member is performed. While the lock is released and ignition is possible in accordance with the release operation of the lock means, the operation member can be continuously ignited while the release operation is continued, and when the release operation of the lock means is released, it automatically returns to the lock position. A structure with an ignition lock function provided in this way has been proposed.
[0004]
[Problems to be solved by the invention]
However, in the above-mentioned igniter, the mechanism of the lock means is slidably disposed on the igniter main body so as to lock the movement of the operation member, and the lock member is slid according to the unlocking operation. It is structured to be moved and moved to the unlocked position, and in order to hold this sliding member so as to ensure good sliding over a long period of time, there will be no malfunction of locking diagonally. Therefore, there is a problem that it is disadvantageous in terms of securing productivity in mass production and cost.
[0005]
In the above-described igniter, the unlocking operation of the locking means is a single operation of pushing down the push button or pushing the lever, so that the more complicated unlocking operation is performed. May be desired.
[0006]
From the above points, unlocking is performed by combining the two types of operations of pushing down the push button and pushing down the lever, or unlocking with a combination of these and the sliding operation unit. However, in these unlocking operations, it is necessary to operate with different fingers or discontinuous operations, and there are difficulties in operability, and further improvement is desired for practical application. It is.
[0007]
In other words, as a basic ignition operation of the igniter, the operation of the operation member is required, and in addition to this, a discontinuous operation such as a lock release operation by a plurality of fingers or a push operation after a slide operation is performed. The operation is troublesome and there is a problem that the operability in the case of normal ignition use is impaired, and the mechanism of the igniter as a whole becomes complicated.
[0008]
In view of this point, the present invention is to provide an igniter in which the mechanical parts of the locking means for locking the operation member are advantageous in terms of productivity and cost while ensuring good operating performance for a long time. Is.
[0009]
The present invention is also intended to provide an igniter that improves operability by obtaining a plurality of unlocking operations by a series of consecutive operations.
[0010]
[Means for Solving the Problems]
An igniter according to the present invention that has solved the above-mentioned problems includes a gas nozzle, a valve mechanism that opens and closes the supply of gas from the gas tank to the jet nozzle, and a piezoelectric unit that generates a discharge voltage for ignition. And an operation member that drives the valve mechanism and the piezoelectric unit to perform an ignition operation is slidably supported, and is rotatably supported by an igniter main body. A lock unit that is rotated to a lock position that locks the ignition operation and a release position that allows the ignition operation, and a biasing unit that biases the lock unit in the direction of the lock position are provided. Is.
[0011]
Further, another igniter of the present invention includes an ejection nozzle that ejects gas, a gas tank, a valve mechanism that opens and closes the supply of gas from the gas tank to the ejection nozzle, and a piezoelectric unit that generates a discharge voltage for ignition. In addition to being installed, an operation member that drives the valve mechanism and the piezoelectric unit to perform an ignition operation is slidably installed. The operation member is rotatably supported by an igniter main body, and the ignition operation of the operation member is performed. A lock means that is rotated to a lock position for locking and a release position that allows an ignition operation, an urging means that urges the lock means in the direction of the lock position, and the lock means are rotatable together. The restriction portion is locked to the main body portion at the restriction position to restrict the rotation of the locking means to the release position, and is moved to the non-restriction position where the restriction portion and the main body portion are unlocked by a pushing operation. A restricting means and an elastic means for biasing the restricting portion of the restricting means in the direction of the restricting position are provided to push the restricting means from the restricting position to the non-regulating position, and to move the locking means from the locked position to the release position. The ignition operation by the operation member is allowed by rotating the operation member.
[0012]
The restricting means is formed by an elastic piece fixed to the lock means, and elastic means for urging the restricting portion in the direction of the restricting position by elasticity of the elastic piece constitutes a restricting portion by pushing deformation of the elastic piece. Can be provided to operate from the restricted position to the non-restricted position. At this time, the regulating means may be formed as a separate part from the locking means, or may be integrally formed with the locking means. Moreover, you may form the latching | locking part of the main-body part which the regulation part of the said regulation means latches in the rotation direction of a locking means.
[0013]
Further, the restricting means is slidably supported by the lock means and urged in the protruding direction by the elastic means, and the restricting portion is locked to the main body portion at the restricting position, and is restricted at the pushed non-regulating position. You may provide so that the latching of a part and a main-body part may be released.
[0014]
Further, it is desirable that the restricting means is automatically returned from the non-restricted position to the restricted position in accordance with the return rotation of the lock means from the unlocked position to the locked position.
[0015]
On the other hand, it is preferable that a gas pipe is inserted through the lock means.
[0016]
Further, it is desirable to provide the operation member so that the ignition operation can be repeated by continuing the release operation of the lock means.
[0017]
The lock means has a lock portion that locks the ignition operation by interfering with a part of the operation member at the lock position, and the lock portion moves to a non-interference position with the operation member when rotated to the release position. It is preferable to provide it. At this time, it is desirable that the center of rotation of the locking means is supported so as to be movable.
[0018]
【The invention's effect】
According to the above-described igniter of the present invention, the lock means is rotatably held in the igniter main body, and the urging means is urged in the lock direction so that the unlocking operation is rotated. Thus, a reliable operation can be obtained even when the support of the lock mechanism component to the main body is low in dimensional accuracy, which is advantageous in terms of productivity and cost in mass production.
[0019]
According to another igniter of the present invention, when the restricting means is in the restricting position where the pushing operation is not performed, the lock means cannot be rotated to the release position but is in the locked position and is ignited by the operation member. While the operation cannot be performed and the ignition lock state is established, the lock means is rotated from the lock position to the release position while the restriction means provided to rotate integrally with the lock means is pushed from the restriction position to the non-regulation position. Thus, the operation member can be ignited, and combustion can be started by igniting the operation member while ejecting the fuel gas, and ignition combustion can be performed only by a series of two operations of rotating the lock unit while pushing the regulating unit. As a result, a good ignition control function can be ensured while improving operability, and the structure can be simplified.
[0020]
In addition, if the operation of the operation member is repeated so that the ignition operation can be repeated by continuing the release operation of the locking means, the reignition operation can be easily performed when ignition combustion cannot be performed by one ignition operation, Excellent operability. Further, when the restricting means is provided so as to automatically return to the restricting position in accordance with the return rotation of the lock means to the lock position, the return to the ignition lock state can be automatically performed.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the igniter of the present invention will be described in detail with reference to the drawings.
[0022]
<First Embodiment>
1 to 5 show an igniter using an ignition rod according to this embodiment. FIG. 1 is a front view of the main part, FIG. 2 is a cross-sectional side view of the main part, and FIG. 3 is a cross-sectional view taken along line AA in FIG. FIG. 5 is an exploded perspective view of parts related to the ignition control mechanism, and FIG. 5 is a cross-sectional side view of the main part in an operating state.
[0023]
The igniter 1 (ignition rod) includes a main body portion 2 and an extension tip portion 3 (a tip portion is not shown) extending in a rod shape. The main body 2 is formed by a lower case 5 whose outer shell portion is formed of a synthetic resin and an intermediate case 6 that is vertically divided at the center above the upper case, and in FIG. 2, FIG. 4 and FIG. One of the cases 6 is illustrated.
[0024]
A gas tank (not shown) formed of a synthetic resin containing high-pressure gas such as butane gas is installed in the lower case 5 on the base end side of the main body 2. A valve mechanism 8 for opening and closing the supply is provided. The valve mechanism 8 is supplied with gas from the gas tank, and a nozzle member 10 is interposed in the gas passage. One end portion of a turning lever 14 for opening the nozzle member 10 is engaged with the tip portion of the nozzle member 10, and the passage is opened by the forward movement of the nozzle member 10 by the operation of the turning lever 14, and the gas is opened. Or the passage is closed and the gas supply is stopped by a backward movement by a spring disposed in the valve mechanism 8. The amount of gas supplied, that is, the size of the flame is adjusted by the rotation of the flame adjustment knob 13 protruding outward.
[0025]
Further, a sleeve member 16 and a connector pipe 17 are disposed on the extended line at the most distal end portion 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 jet nozzle (not shown) to feed gas.
[0026]
The intermediate case 6 of the main body 2 is provided with an operation member 20 (ignition button) on the side of the valve mechanism 8 so as to be slidable in parallel with the center line of the valve mechanism 8. A piezoelectric unit 22 is installed between the gas tank 20 and the gas tank.
[0027]
As shown in FIG. 4, the operating member 20 has a cylindrical portion 20b that is slidably supported from the opening of the intermediate case 6, and the operating portion 20a is inclined at the tip of the cylindrical portion 20b. Is provided. Further, a leg portion 20d extending in the sliding direction is connected to an end portion of the cylindrical portion 20b on the valve mechanism 8 side. The leg portion 20d is configured to be linked to the end portion of the rotating lever 14 during the ignition movement and to rotate it.
[0028]
Furthermore, an opening 20e into which a lock part 30b of a lock member 30 (to be described later) can be inserted is formed in the back surface part between the leg part 20d and the operation part 20a, and an end part of the opening 20e on the operation part 20a side is formed. It is formed in the lock engaging part 20f.
[0029]
The rotating lever 14 is formed in a substantially L shape, is supported so as to be rotatable around a fulcrum of an intermediate portion, and is rotated by a leg portion 20d of the operating member 20, so that an ignition operation can be performed. With this rotation, the nozzle member 10 of the valve mechanism 8 is moved so as to be pulled out and opened to supply gas.
[0030]
The piezoelectric unit 22 feeds a discharge voltage, and a slide part 22a that expands and contracts is fitted into the cylindrical portion 20b of the operation member 20, and the slide part is moved along with the retreat operation of the operation member 20. 22a is configured to immerse and generate a discharge voltage. The lead wires 23 (two) connected to the electrodes of the piezoelectric unit 22 are connected to an ejection nozzle and a discharge electrode (not shown).
[0031]
The intermediate case 6 is integrally formed with a protective frame 24 that forms a space for inserting a finger outside the operation portion 20a of the operation member 20 and surrounds the intermediate case 6.
[0032]
Next, an ignition control mechanism for restricting the ignition operation of the operation member 20 is installed for the igniter 1 having the above structure.
[0033]
The control mechanism is configured to lock or release the ignition operation of the operation member 20. The lock unit 27 includes a lock member 30 rotatably supported on the inner surface of the main body 2 (intermediate case 6), and the lock unit. And a biasing means 31 using a torsion spring that biases 27 in the direction of the lock position, and is linked so as to allow ignition operation of the operation member 20 when the lock means 27 is rotated from the lock position to the release position. Has been.
[0034]
The locking member 30 is provided with a substantially semicircular side plate 30a having an outer periphery formed in an arc shape on both sides (see FIG. 3), and an opening 20e of the operation member 20 is formed at one end of the side plate 30a. A hook-shaped lock portion 30b that can be inserted and engaged with the lock engaging portion 20f is formed. The both side plates 30a are integrally connected at their outer peripheral arcs by a peripheral wall 30c to form a space inside. Further, on the outer surface of the both side plates 30a, a shaft portion 30d extending laterally is provided at the center position of the outer peripheral arc shape, and this shaft portion 30d is a long hole bearing of the main body portion 2 (intermediate case 6). A lock position and a lock portion that are inserted into the portion 2a (see FIG. 4), are supported rotatably and movable along the bearing portion 2a, and the lock portion 30b engages with the lock engaging portion 20f of the operation member 20. 30b can be rotated to a release position where it moves into the main body 2. The peripheral wall 30c protrudes outward from the window portion 2b opened in the wall surface opposite to the protective frame 24 of the main body 2 (intermediate case 6), and the outer surface portion of the peripheral wall 30c serves as a finger-hanging portion for rotating operation. A concave groove is formed in the lateral direction.
[0035]
Further, a spring receiver 30e having two protrusions is provided on the outer surface of one side plate 30a. A central coil portion of a torsion spring 31 as an urging means is fitted on the outer periphery of the shaft portion 30d on the side where the spring receiver 30e is projected, and one linear portion of the torsion spring 31 is attached to the spring receiver 30e. The other linear portion is engaged with the protruding portion 2c of the main body portion 2, and the lock portion 30b is urged in the locking direction to rotate toward the operation member 20 side. Note that the urging force of the urging means 31 is set to be strong, and the turning operation force in the release direction is set to be relatively large.
[0036]
A stopper 30f (see FIG. 3) projects from the outer surface of the other side plate 30a. When the lock member 30 is rotated in the locking direction, the stopper 30f abuts against a not-shown locking portion of the main body 2 to restrict the stop position. Further, the rotation of the lock member 30 in the releasing direction restricts the maximum rotation position by the front end portion of the side plate 30a coming into contact with the protruding portion 2c of the main body portion 2 (see FIG. 5).
[0037]
In the assembled state of the lock member 30, the connector pipe 17 and the gas pipe 18 are provided so as to be inserted through the space between the side plates 30a (the same applies to other embodiments described later). . Further, the distal end portion in the release direction of the peripheral wall 30c in the lock member 30 is formed at a position that does not interfere with the gas pipe 18 disposed therein when the lock member 30 is rotated to the release position shown in FIG.
[0038]
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-operation state in which the lock member 30 is in the locked position (standby state) and the operation member 20 protrudes into the protective frame 24. In this state, the lock portion 30b of the lock member 30 is The operation member 20 projects inwardly from the opening 20e of the operation member 20 and engages with the lock engaging portion 20f. The pushing operation of the operation member 20 is impossible and the ignition operation cannot be performed.
[0039]
Next, when the igniter 1 is used, as shown in FIG. 5, when the peripheral wall 30 c of the lock member 30 is turned forward in the release direction, the lock portion 30 b interferes with the opening 20 e of the operation member 20. The operation member 20 can be pushed and ignited by moving from the position to the release position inside the main body 2. At that time, the force for operating the lock member 30 to rotate also acts to push or push the shaft portion 30d forward, and the shaft portion 30d moves the bearing portion 2a forward along its elongated hole shape. The center of rotation moves.
[0040]
When the operation member 20 is ignited in the unlocked state, the nozzle member 10 is pulled out via the rotating lever 14 with the movement of the operation member 20, and the valve mechanism 8 is opened, and the gas is supplied to the ejection nozzle through the gas pipe 18. Supply. A discharge voltage (alternating 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 tip 3 and the ejection nozzle to ignite the ejection gas.
[0041]
When the operation member 20 is pushed in before the lock member 30 is released, the lock engaging portion 20f and the lock portion 30b of the lock member 30 are strongly engaged and locked. The release operation of the lock member 30 in the release direction becomes difficult, but the shaft member 30d of the lock member 30 is movably supported by the long hole-shaped bearing portion 2a as described above, so that the lock member 30 is pushed in. When the pivoting operation is performed, the shaft portion 30d moves forward, the engagement between the lock portion 30b and the lock engaging portion 20f is easily released, and the locking member 30 can be pivoted in the releasing direction ( The same applies to other embodiments described later).
[0042]
When the lock member 30 is kept rotated and the operation to the release position is continued, the operation member 20 can repeatedly perform the ignition operation, and the continuous ignition operation when the gas is not ignited by one ignition operation. (This also applies to other embodiments described later).
[0043]
When the operation member 20 and the lock member 30 are released to end use, the operation member 20 protrudes and returns to the initial position due to the elastic force of the spring in the piezoelectric unit 22, and the lock member 30 is attached. Due to the urging force of the urging means 31 (torsion spring), the lock member 30 moves to the lock position so that the lock portion 30b protrudes, and automatically returns to the lock state of FIG.
[0044]
In the present embodiment, since the lock member 30 is rotatably supported, it is difficult to cause a malfunction due to the rotational movement being caught in the middle, and stable ignition for repeated use over a long period of time. A control function can be secured. Further, the gas pipe 18 is inserted between the side plates 30a of the lock member 30, so that the lock member 30 can be installed while avoiding interference with the internal mechanism and ensuring good assembly.
[0045]
<Second Embodiment>
This embodiment is shown in FIG. 6 and FIG. 7, and the ignition control mechanism is formed in the same manner and the basic function is the same, unlike the first embodiment in the form of the main part of the igniter.
[0046]
The main body 102 in the igniter 100 of the present embodiment is formed of a case 7 in which the entire outer portion is vertically divided substantially at the center.
[0047]
Further, the shape of the operation member 120 that performs the ignition operation is partially different. The operation member 120 has a cylindrical portion 120b that is slidably supported by the case 7, and an operation portion 120a is provided obliquely at the tip of the cylindrical portion 120b. The operation part 120a is formed to extend from the cylindrical part 120b toward the main body part 102, and a leg part 120d linked to the rotation lever 14 is extended to the rear end part of the cylindrical part 120b. A locking wall 120e extends from the extended portion of the operation portion 120a in parallel with the rear surface of the cylindrical portion 120b, and a lock locking portion 120f whose front end can be locked with the locking portion 30b of the locking member 30. Is formed.
[0048]
In accordance with the operation member 120 as described above, the positions of the bearing portion 102a and the projection portion 102c of the main body portion 102 are arranged close to the window portion 102b side, and the window portion 102b is opened long in the front-rear direction, and the protective frame The shape of 124 is different.
[0049]
On the other hand, the lock member 30 of the lock means 27 has the same configuration as that of the first embodiment, and the position of the bearing portion 102a that supports the shaft portion 30d is disposed on the window portion 102b side. The protruding amount of the peripheral wall 30c exposed to the outside from the window portion 102b is large.
[0050]
Others are the same as those in the first embodiment, and the same components are denoted by the same reference numerals.
[0051]
Next, FIG. 8 shows another mode in which the lock member 130 of the lock means 27 is miniaturized in the igniter 100 of this embodiment. Others are the same as FIG.
[0052]
The lock member 130 of this aspect is provided with a small radius of the arc portion of the side plates 130a, that is, the peripheral wall 130c, and the window portion 102b of the main body portion 102 (the length in the front-rear direction is the same as that of the first embodiment. The locking portion 130b, the shaft portion 130d, the spring support 130e, and the like are formed in the same manner.
[0053]
As the peripheral wall 130c of the lock member 130 is downsized, when the distal end of the peripheral wall 130c presses the gas pipe 18 when the lock member 130 rotates in the release direction, the distal end of the peripheral wall 130c is cut off. Although it is necessary to avoid interference with the gas pipe 18, when the leading end of the peripheral wall 130 c is at a position away from the opening end of the window portion 102 b at the locked position, a part of the case 7 of the main body portion 102 is moved to the window portion. You may project and form so that the front-end | tip part of the surrounding wall 130c may be covered from the opening end of 102b.
[0054]
<Third Embodiment>
This embodiment is shown in FIGS. 9 to 11 and shows another embodiment of the ignition control mechanism. The main body 2, the operation member 20 and the like of the igniter 200 are the same as those in the first embodiment (FIGS. 1 to 5). ), The same components are denoted by the same reference numerals, and the description thereof is omitted.
[0055]
The ignition control mechanism of this embodiment includes a lock means 27 by a rotatable lock member 230 that locks the ignition operation of the operation member 20, and an urging means by a torsion spring that urges the lock means 27 in the direction of the lock position. 31 and a restricting portion 32c that is integrally fixed to the lock member 230 and is locked to the main body 2 to restrict the rotation of the lock means 27, and is restricted by the elasticity of the elastic piece itself. And a restricting means 26 constituted by a restricting member 32 which is an elastic means for urging the portion 32c, and the restricting means 26 is pushed from the restricting position to the non-regulating position, or at the same time or continuously, the locking means 27 is locked. When the operation member 20 is rotated to the release position, the operation member 20 is linked so as to allow the ignition operation.
[0056]
The lock member 230 is provided with a substantially semicircular side plate 230a having an outer periphery formed in an arc shape on both sides, and a hook-like shape that can be inserted into the opening 20e of the operation member 20 at one end of the side plate 230a. A lock portion 230b is formed. The both side plates 230a are integrally connected by an inner connecting portion 230c, and a space is formed inside. In addition, a shaft portion 230d is provided at the center of rotation on the side surfaces of the both side plates 230a, and this shaft portion 230d is inserted into the long hole-shaped bearing portion 2a (see FIG. 4) of the main body portion 2 so as to be locked. It is rotatably supported at the position and the release position. The outer peripheral portion of the side plate 230a protrudes outward from the window portion 2b of the main body portion 2, and this outer peripheral portion serves as a finger-hanging portion for rotating operation, and a concave groove is formed in the lateral direction.
[0057]
Further, a spring receiver 230e with two protrusions is provided on the outer surface of one side plate 230a, and a straight portion of a torsion spring 31 as an urging means is engaged, and urging is performed in the locking direction as in the above embodiment. Is done.
[0058]
On the other hand, the restricting member 32 is formed into a separate part from, for example, a resin different from the lock member 230, and is an elastic piece 32a curved in a substantially arc shape having a width corresponding to the inner space between the side plates 230a of the lock member 230. A fixing portion 32b is connected to the base portion of the elastic piece 32a, and the fixing portion 32b is fitted and fixed to the connecting portion 230c of the lock member 230 from behind.
[0059]
A restricting portion 32c is formed at the tip of the elastic piece 32a, and a protruding pressing portion 32d is formed at the intermediate portion. When the elastic piece 32a is in a free state (non-pressed state), the curved shape has a larger radius of curvature than the arc portion of the side plate 230a of the lock member 230, and the restricting portion 32c at the tip projects outward from the side plate 230a. The restricting portion 32 c interferes with the locking portion 2 d at the front end of the window portion 2 b of the main body portion 2. Due to this interference, the rotation of the lock member 30 is restricted. The restricting position and the pressing part 32d are pushed in, the radius of curvature becomes small, and the restricting part 32c moves into the side plate 230a, so that the locking part 2d is in contact with the locking part 2d. It can be elastically deformed to an unregulated position where engagement is impossible. The restricting portion 32c is urged to the restricting position by the elasticity of the elastic piece 32a and is deformed to return.
[0060]
At the tip of the elastic piece 32a of the restricting member 32, a protrusion 32e is formed at the tip of the restricting portion 32c so that the lock member 230 is rotated to the lock position and the restricting member 32 is at the restricting position. Further, (FIG. 10), the protrusion 32e is locked inside the opening end locking portion 2d of the window portion 2b of the main body portion 2 so that the elastic piece 32a is not detached from the outside of the window portion 2b. At this time, the protrusion 32e is formed at a position where it does not interfere with the gas pipe 18 when it is rotated to the release position shown in FIG.
[0061]
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 is that the restricting member 32 is in the restricting position and the lock member 230 is in the locked position (leaving state), and the operating member 20 is in the non-operating state. Cannot be ignited. Further, when 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 restricting member 32 is not pushed, even if the lock member 230 is turned, the turning operation of the lock member 230 is not performed. It is impossible.
[0062]
Next, when the igniter 200 is used, as shown in FIG. 11A, when the pressing portion 32d of the elastic piece 32a of the regulating member 32 is pushed into the non-regulating position against the elastic force, The restricting portion 32c at the distal end of the elastic piece 32a moves from the front of the locking portion 2d of the main body portion 2 to an inward position where it does not interfere, and the lock member 30 is allowed to rotate in the releasing direction.
[0063]
Subsequently, as shown in FIG. 11B, when the outer peripheral portion of the side plate 23a of the lock member 230 is rotated forward in the release direction while the pressing portion 32d of the regulating member 32 is being pushed, the lock portion 230b is operated. It moves from the interference position in the opening 20e of the member 20 to the release position inward of the main body portion 2, and the operation member 20 can be pushed and ignited.
[0064]
When the operation member 20, the lock member 230, and the regulating member 32 are released to end use, the operation member 20 protrudes and returns to the initial position, and the lock member 230 is biased by a biasing means 31 (torsion spring). It is rotated to the locked position by the urging force. As the lock member 230 rotates, the restricting member 32 also protrudes by the elastic force of the elastic piece 32a so that the restricting portion 32b returns to the restricting position so that the lock member 230 cannot be turned and the pushing of the operation member 20 is prevented. It automatically returns to the locked state of FIG.
[0065]
In the present embodiment, since the lock member 230 and the regulating member 32 are separate parts, the lock member 230 and the regulating member 32 can be molded with a resin material having characteristics suitable for each part. Can be secured satisfactorily. Moreover, the assembly of both is excellent in productivity as a fitting structure.
[0066]
<Fourth embodiment>
This embodiment is shown in FIG. 12 and FIG. 13, and the form of the main body 102 of the igniter 300 is the same as that of the second embodiment (FIGS. 6 and 7). Although the form is different from that of the third embodiment, the basic functions are the same.
[0067]
In the igniter 300 of the present embodiment, the operation portion 120a of the operation member 120 protrudes toward the main body portion 102, and as described above, the bearing portion 102a (see FIG. 7) and the projection portion 102c approach the window portion 102b side. Is formed.
[0068]
In the ignition control mechanism of this example, the lock member 330 of the lock means 27 is provided with a small diameter of the arc-shaped outer peripheral portion of both side plates 330a, as in the embodiment of FIG. The portion 330c, the shaft portion 330d, and the like are substantially the same as the third embodiment, although their shapes are slightly different. Further, the restriction member 132 of the restriction means 26 formed as a separate part from the lock member 330 is an elastic member in which the base portion of the elastic piece 132a is fixed to the connecting portion 330c of the lock member 330 by the fixing portion 132b and the pressing portion 132d is provided. The length of the piece 132a is shortened. The position of the restricting portion 132c at the tip of the elastic piece 132a is a position away from the opening end of the window portion 102b formed in the main body portion 102, and accordingly, the engagement of the main body portion 102 to which the restricting portion 132c is locked. A stopper 102d is provided at the tip of the protrusion 102e that protrudes in the rotational direction of the lock member 330 so as to approach the restricting portion 132c from the opening end of the window 102b.
[0069]
The operation of the ignition control mechanism of this embodiment is the same as that of the third embodiment. In the locked state of FIG. 12, the pushing operation of the operation member 120 is disabled, the ignition operation is locked, and the elastic piece 132a of the regulating member 132 is pushed. Thus, the lock member 330 can be rotated by operating to the non-restricted position, and the lock member 330 is rotated to the release position as shown in FIG.
[0070]
In the present embodiment, the installation space of the lock member 330 and the restriction member 132 is narrow, and when the lock member 330 is rotated to the release position while being downsized to reduce the amount of protrusion from the window portion 102b, the restriction is performed. In order to avoid crushing the gas pipe 18 by the restricting portion 132c at the tip of the elastic piece 132a of the member 132, the main body portion 102 has a structure in which the length of the elastic piece 132a is shortened to prevent interference with the gas pipe 18. The locking with the locking portion 102d is ensured.
[0071]
<Fifth embodiment>
This embodiment is shown in FIG. 14 and FIG. 15, and the form of the main body 2 of the igniter 400 is the same as that of the first embodiment (FIGS. 1 to 5). The means 26 is integrally formed, and the basic function is the same as that of the third embodiment.
[0072]
The ignition control mechanism in this embodiment includes a lock means 27 by a rotatable lock member 430 that locks the ignition operation of the operation member 20, and an urging means by a torsion spring that urges the lock member 430 toward the lock position. 31 and a restricting means 26 that is molded integrally with the lock member 430 and that restricts the rotation of the lock member 430 by the restricting portion 232c of the elastic piece 232a being engaged with the main body portion 2, and the restricting member 232 is provided. Simultaneously with the pushing operation from the restriction position to the non-regulation position, or when the lock member 430 is continuously rotated from the lock position to the release position, the operation member 20 is linked to allow the ignition operation.
[0073]
The lock member 430 has a substantially semicircular side plate 430a disposed on both sides, and a hook-shaped lock portion 430b that can be inserted into the opening 20e of the operation member 20 is formed at one end of the side plate 430a. ing. The both side plates 430a are integrally connected by a regulating member 232, and a space is formed inside. Further, a shaft portion 430d is provided at the center of rotation on the side surfaces of both side plates 430a, and this shaft portion 430d is inserted into the long hole-shaped bearing portion 2a (see FIG. 4) of the main body portion 2 to lock It is rotatably supported at the position and the release position. Further, a spring receiver 430e having two protrusions is provided on the outer surface of one side plate 430a, and a linear portion of a torsion spring 31 as an urging means is engaged and urged in the locking direction in the same manner as described above.
[0074]
On the other hand, the restriction member 232 has an elastic piece 232a that is integrally formed with the side plate 430a of the lock member 430 and is curved in a substantially arc shape having a width corresponding to the outer space of the both side plates 430a. The base fixing portion 232b is fixed to the both side plates 430a to connect the side plates 430a on both sides. The elastic piece 232a extends to cover the outer side of the both side plates 430a. A restricting portion 232c is formed at the tip of the elastic piece 232a, and the surface of the elastic piece 232a protruding outward from the window portion 2b of the main body 2 is pushed and rotated. The groove is formed in the lateral direction.
[0075]
When the elastic piece 232a is in a free state (non-pressed state), the restricting portion 232c at the front end interferes with the engaging portion 2d at the front end of the window portion 2b of the main body portion 2 to restrict the rotation of the lock member 430. The elastic piece 232a can be elastically deformed to the restriction position and the non-restriction position where the elastic piece 232a is pushed, and is urged to the restriction position by the elasticity of the elastic piece 232a itself. A protrusion 232e is formed at the tip of the restricting portion 232c so as to be engaged inside the opening end of the window portion 2b.
[0076]
The operation of the ignition control mechanism of this embodiment is the same as that of the third embodiment. In the locked state of FIG. 14, the pushing operation of the operation member 20 is disabled and the ignition operation is locked, as shown in FIG. The elastic member 232a of the restricting member 232 is pushed in and operated to the non-restricted position so that the lock member 430 can be turned, and the lock member 430 is turned to the release position as shown in FIG. The ignition operation of the member 20 is enabled.
[0077]
In the present embodiment, the lock member 430 and the regulating member 232 are integrally formed, so that the number of parts is small, which is advantageous in terms of productivity and cost.
[0078]
<Sixth Embodiment>
This embodiment is shown in FIGS. 16 to 19 and shows another embodiment of the ignition control mechanism. The main body 2 of the igniter 500 is the same as that of the first embodiment (FIGS. 1 to 5). .
[0079]
The ignition control mechanism includes a lock means 27 by a lock member 530 that is rotatably supported to lock the ignition operation of the operation member 20, and a restriction means by a push button type restriction member 332 that restricts the rotation operation of the lock member 530. 26, and when the lock member 530 is rotated from the lock position to the release position while the restricting member 332 is pushed and moved from the restricting position where the restricting member 332 protrudes to the non-regulating position, the ignition operation of the operation member 20 is permitted. It is linked to.
[0080]
The lock member 530 has a substantially semicircular side plate 530a having an outer periphery formed in an arc shape on both sides, and a hook shape that can be inserted into the opening 20e of the operation member 20 at one end of the side plate 530a. The lock portion 530b is formed. The both side plates 530a are integrally connected at their circular arc portions by a peripheral wall 530c, and a space is formed inside. Further, a shaft portion 530d is provided at the rotation center portion on the side surface of the both side plates 530a, and this shaft portion 530d is inserted into the long hole-shaped bearing portion 2a (see FIG. 4) of the main body portion 2 so as to be locked. It is rotatably supported at the position and the release position. A part of the peripheral wall 530c protrudes outward from the window portion 2b of the main body portion 2, and a surface portion of the peripheral wall 530c serves as a finger-hanging portion for rotating operation, and a concave groove is formed in the lateral direction. Further, a sliding groove 530g is formed on the side plate 530a from the outer peripheral portion toward the center portion, and a regulating member 332 described later is attached. Further, a spring receiver 530e having two protrusions is provided on the outer surface of one side plate 530a, and the straight portion of the torsion spring 31 as an urging means is engaged and urged in the locking direction.
[0081]
On the other hand, as shown in FIG. 18, the restricting member 332 is formed in a rectangular tube-like push button shape, and is attached to the sliding groove 530g of the lock member 530 from the outside, and the tip pressing portion 332a is outward. It is slidable between a restricting position protruding into the non-restricting position where it is immersed. Inside the restricting member 332, an elastic means 33 by a coil spring is compressed between the spring receiver 530h formed on the peripheral wall 530c of the lock member 530 and biased to the restricting position. 332b engages with the back surface of the peripheral wall 530c and stops at the restriction position.
[0082]
In addition, protrusion-like restricting portions 332c are provided on both side surfaces of the restricting member 332, and the restricting portions 332c are concave locking portions formed by cutting out on the side of the window portion 2b of the main body 2 at the restricting position. 2f (see FIG. 17), the rotation of the lock member 530 is restricted, and the engagement between the restricting portion 332c and the engaging portion 2f is released at the non-restricted position where the pressing portion 332a is pushed. Is formed.
[0083]
The operation of the ignition control mechanism of the present embodiment as described above will be described. First, the state shown in FIG. 16 is that the restricting member 332 is in the restricting position, the lock member 530 is in the locked position (left state), and the operation member 20 is in the non-operating state. In this state, the lock portion 530b of the lock member 530 is operated. The operation member 20 cannot be ignited by protruding inward of the member 20 and engaging with the lock engaging portion 20f. Further, when the restricting portion 332c of the restricting member 332 is engaged with the locking portion 2f of the main body portion 2 and the restricting member 332 is not pushed in, the rotation operation of the lock member 530 is impossible.
[0084]
Next, when using the igniter 500, as shown in FIG. 19A, when the pressing portion 332a of the regulating member 332 is pushed into the non-regulating position against the coil spring 33, the regulating portion 332c is The main body 2 moves away from the locking portion 2f to the inward position, and the lock member 530 is allowed to rotate in the releasing direction. Subsequently, as shown in FIG. 19B, when the peripheral wall 530c of the lock member 530 is rotated forward in the release direction while the pressing portion 332a of the regulating member 332 is being pushed, the lock portion 530b is moved to the release position. In addition, the operation member 20 can be pushed and ignited.
[0085]
When the operation member 20, the lock member 530, and the regulating member 332 are released to end use, the operation member 20 protrudes and returns to the initial position, and the lock member 530 is biased by a biasing means 31 (torsion spring). It moves to the locked position by the urging force. When the lock member 530 returns to the lock position, the restricting portion 332c of the restricting member 332 is automatically engaged with the engaging portion 2f and returned to the restricting position so that the lock member 530 cannot be moved automatically. Return.
[0086]
Note that the surface of the restricting portion 332c of the restricting member 332 is formed as a curved surface so that the insertion and locking to the engaging portion 2f is surely performed, and the restricting portion 332c is in sliding contact with the inner surface of the main body portion 2. When moving smoothly.
[0087]
In the present embodiment, the restricting member 332 has a push button shape, so that the pushing operation can be easily performed.
[Brief description of the drawings]
FIG. 1 is a front view of an essential part of an igniter according to a first embodiment of the present invention.
2 is a cross-sectional side view of the main part of FIG.
3 is a cross-sectional view taken along the line AA in FIG.
4 is an exploded perspective view of parts related to the ignition control mechanism of FIG. 1;
5 is a cross-sectional side view of an essential part showing the operating state of FIG. 2;
FIG. 6 is a sectional side view of an essential part of an igniter according to a second embodiment of the present invention.
7 is an exploded perspective view of parts related to the ignition control mechanism of FIG. 6;
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 main parts of an igniter according to a third embodiment of the present invention.
10 is a cross-sectional side view of the main part of FIG. 9;
11 is a cross-sectional side view of the main part showing the operating state of FIG. 10;
FIG. 12 is a cross-sectional side view of an essential part of an igniter according to a fourth embodiment of the present invention.
13 is a cross-sectional perspective view of the main part showing the operating state of FIG. 12;
FIG. 14 is a sectional side view of an essential part of an igniter according to a fifth embodiment of the present invention.
15 is a cross-sectional side view of an essential part showing the operating state of FIG. 14;
FIG. 16 is a sectional side view of an essential 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.
18 is a sectional view taken along line BB in FIG.
19 is a cross-sectional side view of the main part showing the operating state of FIG. 16;
[Explanation of symbols]
1,100,200,300,400,500 Igniter (ignition rod)
2,102 body
2a, 102a Bearing
2b, 102b Window
2d, 2f, 102d Locking part
102e protrusion
5-7 cases
8 Valve mechanism
20,120 Operation member
20a, 120a operation unit
20f, 120f Lock locking part
26 Regulatory measures
27 Locking means
30,130,230,330,430,530 Lock member
30b, 130b, 230b, 330b, 430b, 530b Lock part
30d, 130d, 230d, 330d, 430d, 530d Shaft
31 Biasing means (torsion spring)
32,132,232,332 Restriction member
32a, 132a, 232a Elastic piece (elastic means)
32c, 132c, 232c, 332c Regulatory Department
33 Elastic means (coil spring)

Claims (8)

A gas nozzle, a valve mechanism that opens and closes the supply of gas from the gas tank to the jet nozzle, and a piezoelectric unit that generates a discharge voltage for ignition are installed, and the valve mechanism and the piezoelectric unit. In an igniter in which an operation member that performs an ignition operation by driving is slidably installed,
A lock means rotatably supported by the igniter main body, and engaged with the operation member to lock the ignition operation of the operation member and to a release position allowing the ignition operation; Urging means for urging the lock means in the direction of the lock position, and the lock means has an outer circumference formed in a substantially arc shape, and the outer circumference is partially opposite to the operation member of the igniter. A lock member pivotally supported by the igniter at the center position of the arc so as to be exposed to the outside, the lock member having a lock portion engaged with the operation member;
An igniter configured to rotate the outer periphery exposed to the outside to disengage the operation member and the lock portion . A gas nozzle, a valve mechanism that opens and closes the supply of gas from the gas tank to the jet nozzle, and a piezoelectric unit that generates a discharge voltage for ignition are installed, and the valve mechanism and the piezoelectric unit. In an igniter in which an operation member that performs an ignition operation by driving is slidably installed,
A lock means rotatably supported by the igniter main body, and engaged with the operation member to lock the ignition operation of the operation member and to a release position allowing the ignition operation;
Biasing means for biasing the locking means in the direction of the locking position;
The freely locking means and rotated integrally and regulating unit in the regulating position is engaged with a portion of the body portion to restrict rotation of the release position of the locking means, the body and the restricting portion by the pressing operation Restricting means for moving to a non-regulating position to release the locking with a part of the part ;
An elastic means for urging the restriction portion of the restriction means in the direction of the restriction position;
The lock means can be pivoted to the igniter at the center position of the arc so that the outer periphery is formed in a substantially arc shape and the outer periphery is partially exposed to the outside of the igniter opposite to the operation member. A lock member that is pivotally supported by the lock member, and the lock member has a lock portion that engages with the operation member,
The restricting means is pushed from a restricted position to a non-restricted position, and the exposed outer periphery of the lock member is turned from a locked position to a release position to allow ignition operation by the operating member. Igniter.   The restricting means is formed of an elastic piece fixed to the lock means, and constitutes an elastic means for urging the restricting portion in the direction of the restricting position by the elasticity of the elastic piece, and is restricted by the pushing deformation of the elastic piece. The igniter according to claim 2, wherein the part is operated from a restricted position to a non-restricted position.   The igniter according to claim 3, wherein the restricting means is formed as a separate part from the locking means.   The igniter according to claim 3, wherein the restricting means is formed integrally with the locking means.   4. The igniter according to claim 3, wherein the locking portion of the main body portion that is locked by the restriction portion of the restriction means is formed to protrude in the rotation direction of the lock means.   The restricting means is slidably supported by the lock means and urged in the protruding direction by an elastic means, and the restricting portion is locked to the main body at the restricting position, and the restricting position is pushed into the restricting position. The igniter according to claim 2, wherein the engagement between the part and the body part is released. The igniter according to claim 1 or 2 , wherein the lock means is supported so that the center of rotation is movable.

Images