JP3785986B2 - Igniter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the igniter that performs gas ejection and gas ignition by an ignition operation that rotates the operation member around the fulcrum member, the present invention normally performs the ignition lock by prohibiting the rotation operation of the operation member, The present invention relates to an igniter provided with an operation mechanism that is capable of being ignited by releasing an ignition lock in use.
[0002]
[Prior art]
An igniter, for example, an igniter rod, can be easily ignited by pushing the operating member, but the lock mechanism is used to prevent accidental ignition or accidental ignition. It is required to be installed, and so far an igniter having various mechanisms has been proposed.
[0003]
For example, in Japanese Patent Laid-Open No. 8-61673, a lock member that is ignited and locked by a lock part interfering with a part of an operation member is installed so as to be movable in a direction crossing the moving direction of the operation member. An urging member that urges the urging member in the locking direction is disposed, and the locking member has a release operation portion that can move against the urging member, and the release operation portion is located near the operation portion of the operation member. There has been disclosed an igniter having a mechanism projecting from the igniter.
[0004]
[Problems to be solved by the invention]
However, the lock mechanism as described above is a slide type operation of the operation member of the operation mechanism, and the operation member targeted by the present invention cannot be directly applied to a rotation type.
[0005]
Further, in these ignition lock mechanisms, the operation of another member at a position away from the operation member such as the unlocking member before performing the ignition operation of the operation member is a multi-step operation in the ignition operation. Since it is necessary and has difficulty in operability, it is desirable to provide a lock release and ignition that can be stably performed by a series of operations. Further, after the ignition operation, it is desired to automatically return to the ignition lock state as the finger is removed from the operation member.
[0006]
In view of this point, the present invention provides an igniter including an operation mechanism that can obtain ignition lock, unlocking, and automatic return while ensuring good operability when ignition is performed by rotating the operation member. Is intended to provide.
[0007]
[Means for Solving the Problems]
An igniter according to the present invention includes an ejection nozzle that is disposed at a tip of a rod-like portion and ejects gas, a tank portion that stores fuel, a valve mechanism that opens and closes the supply of gas from the tank portion to the ejection nozzle, a firing device for generating a discharge voltage for ignition in the igniter with an operating mechanism for igniting operation, the operating mechanism includes an operating member of the type buttons arranged in the middle of the main body case, said operating member A fulcrum member arranged as a rotation center on one end side, a fulcrum that is erected on a body case and supports the fulcrum member, and the operation member can be rotated by a pushing operation on the other end side ; a coupling member for actuating the ignition device in accordance with the rotation, a part in from one end to the operating member in the non-operation state is movably mounted to the other end to protrude interfere with the main body case side the Do not rotate the operation member Comprising a locking member to unlock and immersed in the operating within member when moved in the unlocking direction of the other end as well as the ignition lock, and a biasing member which biases the locking member in a locking direction, the after removing the interference by unlocking the other end from the one end of the locking member, subjected to ignition operation by rotating push the other end of said operating member, said along with the return movement of the operating member The lock member automatically returns to the ignition lock state.
[0008]
The lock member unlocking operation is preferably moved along the operation portion of the operation member. At this time, the lock member includes an operation unit slidably attached along the operation unit of the operation member, and an end portion of the operation member that is connected to the operation unit and protrudes from the operation member. It is preferable that the urging member urges the locking member in the protruding direction.
[0009]
In the igniter of the present invention, when the lock member is in the non-operating state and is in the locked position by the biasing member, the lock member is in an ignition lock state in which a part of the lock member interferes with the main body case side, Is prohibited. When the lock member installed on the operation member is unlocked against the urging member, the interference of the lock member is released, thereby enabling the operation member to be rotated, and the fuel ejected with the ignition operation The gas is ignited. When the operation of the operating member is released, the operating member returns and rotates, and the urging force of the urging member moves the lock member to the ignition lock state and automatically returns. The desired lock function is obtained by making the dynamic operation impossible and preventing inadvertent ignition.
[0010]
【The invention's effect】
According to the igniter of the present invention, the unlocking operation of the lock member installed on the operation member is required prior to the rotation operation of the operation member, so that it is difficult for a person who does not know proper usage to unlock. As well as being able to prevent inadvertent ignition, it will not be left in the unlocked state by automatically returning to the locked state during return movement, ensuring a secure locked state in the fire extinguishing state. Reliability can be increased. Further, the unlocking operation of the lock member and the rotation operation of the operation member can be performed in a linked manner, and the ignition operation can be performed in a series rather than a multi-stage operation, so that stable ignition with excellent operability can be obtained.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is an external perspective view of an igniter using an ignition rod according to one embodiment, FIG. 2 is a central longitudinal plan view thereof, FIG. 3 is a sectional side view of an operation mechanism, and FIG. 4 is a sectional view taken along line AA in FIG. 5 is a cross-sectional side view showing a support structure of the operating member, FIG. 6 is a cross-sectional side view showing the unlocked state of the operating mechanism of FIG. 3, and FIG. 7 is a cross-sectional side view showing the ignition operation state of the operating mechanism. is there. In these drawings, hatching of cross sections such as a tank part and a valve mechanism is partially omitted.
[0012]
As shown in FIGS. 1 to 3, the igniter (ignition rod) 1 of the present embodiment is provided with a base tank portion 2 that accommodates high-pressure gas fuel such as butane gas and an operation mechanism 5 that performs an ignition operation. The intermediate operation unit 3 and a rod-like unit 4 extending forward from the operation unit 3 and having a gas ejection nozzle 9 at the tip. The operation mechanism 5 includes an operation member 51 (operation button) that is rotated, and is linked to be driven by the operation mechanism 5 to open and close the supply of gas from the tank unit 2 to the gas ejection nozzle 9. A mechanism 7 and a piezoelectric unit 8 which is one of ignition devices for generating a discharge voltage for ignition are installed.
[0013]
The tank unit 2 includes a bottomed cylindrical tank body 21, a lid member 22 that closes the opening of the tank body 21, and a tank cover 23 that is attached to the outside of the tank body 21. A known valve mechanism 7 for opening and closing the supply is provided. The valve mechanism 7 has a nozzle member 71 at the center, and the nozzle member 71 is opened and closed by engaging one end of a substantially L-shaped operating lever 72. The gas supplied from the valve mechanism 7 is supplied to the ejection nozzle 9 installed at the tip of the rod-like portion 4 by the gas pipe 73.
[0014]
The operation unit 3 includes a main body case 31 (instrument main body) that is divided into upper and lower parts in the horizontal direction, and an inner cylinder 41 of the rod-like portion 4 is integrally formed on the front end side of the main body case 31. The rod-like portion 4 includes a jet nozzle 9 connected to the tip of the gas pipe 73 at the center of the tip of the inner cylinder 41, and a rod-like metal cylinder 43 is attached to the outer peripheral portion of the inner cylinder 41. A flame is ejected from a crater opened at the front end surface of the body 43. The metal cylinder 43 is provided with a discharge electrode (not shown) protruding in the vicinity of the ejection nozzle 9.
[0015]
Further, the upper case 31a of the main body case 31 is opened with a window portion 32 in which the operation member 51 of the operation mechanism 5 is installed at the center portion, and the protection portion 33 is provided on the upper case 31a at the periphery of the window portion 32. Protrusions are formed. The protection portion 33 is formed so as to have a high portion on the rod-like portion 4 side and surround the operation member 51.
[0016]
The operation mechanism 5 includes a rotatable operation member 51 having an operation portion 51a on the surface, and an axial fulcrum member 52 serving as a rotation center in a direction orthogonal to the center line of the valve mechanism 7 of the operation member 51. A link member 53 (linkage lever) that operates the piezoelectric unit 8 in response to the rotation of the operation member 51, and a lock member 54 that is installed on the operation member 51 and prohibits the rotation of the operation member 51 to lock the ignition. And a biasing member 6 for biasing the lock member 54 in the locking direction.
[0017]
The piezoelectric unit 8 is installed between the operation member 51 and the lid member 22. The piezoelectric unit 8 generates a discharge voltage in response to the turning operation of the operation member 51. A projection 81 is provided on the slide portion, and the operation lever 72 is moved when the projection 81 moves backward due to an ignition operation. The nozzle member 71 of the valve mechanism 7 is opened to rotate and rotate to rotate the nozzle member 71 so as to supply gas. Further, the discharge voltage generated in the piezoelectric unit 8 is energized to the ejection nozzle 9 and the discharge electrode of the rod-like portion 4 through a known energization mechanism, and a discharge spark for ignition is generated.
[0018]
The operation member 51 of the operation mechanism 5 has a substantially elliptical plane, a front portion on the side of the rod-shaped portion 4 is formed high, and an upper surface formed obliquely is provided on the operation portion 51a. The ignition operation is performed so as to be hung on the portion 51a and pushed.
[0019]
As shown in FIGS. 3 to 5, the base end of a fulcrum member 52 (rotary shaft) that extends in the lateral direction is fixed to the lower part of the tank member 2 side on both side surfaces of the operation member 51, while the fixed portion In the main body case 31, support portions 34 are provided upright on both sides of the bottom surface of the lower case 31 b, and a receiving groove 34 a (see FIG. 5) having an open top is formed at the upper end of the support portion 34. The fulcrum member 52 is inserted into the receiving groove 34 a of the support portion 34, and the operation member 51 is rotatably supported so that the front side moves circularly around the fulcrum member 52.
[0020]
The lock member 54 installed on the operation member 51 is connected to an operation unit 54a slidably attached along the operation unit 51a of the operation member 51, and is connected to the operation unit 54a via a connection unit 54b. The rear end portion is provided with a lock portion 54 c that protrudes and protrudes from the operation member 51 and can interfere with the main body case 31, and the lock member 54 is urged in the protruding direction by the urging member 6.
[0021]
The operating member 51 is formed with a concave groove 51b extending in the vertical direction on the surface of the substantially central portion of the operating portion 51a. Further, the concave portion 51b extends in the vertical direction through the operating portion 51a. A hole 51c is formed. A flat plate-like operation portion 54a of the lock member 54 is slidably inserted into the concave groove 51b, and a connecting portion 54b protruding downward from the bottom surface of the operation portion 54a is slidably inserted into the elongated hole 51c. Furthermore, a lock portion 54c is provided to extend rearward to the lower end portion of the connecting portion 54b, and the rear end portion of the lock portion 54c is inserted into an insertion hole 51d opened in the rear wall of the operation member 51, and the operation portion It is attached so that it may protrude from the operation member 51 with the sliding of 54a.
[0022]
In addition, the protective portion 33 in the upper case 31a of the main body case 31 is provided with an engaging portion 35 that can interfere with the lock portion 54c at a rear portion of the window portion 32. The rotation operation 51 is prohibited, and the ignition lock state is established. Unlocking is performed when the lock member 54 is moved along the operation portion 51a of the operation member 51, so that the lock member 54 is disengaged from the engaging portion 35, and the rotation of the operation member 51 is allowed.
[0023]
A projection 54e is provided on the front surface of the connecting portion 54b, and similarly, a projection 51e is provided on the inner surface of the front wall of the operation member 51, and a biasing member 6 by a coil spring is mounted between the projections to lock the locking portion. The locking member 54 is urged in the locking direction in which 54c protrudes.
[0024]
Na us, for attachment of the locking member 54 with respect to operation member 51, the locking member 54 or the operating member 51 optionally has become divided structure.
[0025]
Further, the operation member 51 includes a linking member 53 extending downward at the rear portion, and the tip of the piezoelectric unit 8 is in contact with a lower portion of the rear end of the linking member 53. When the operation member 51 is rotated, the linking member 53 acts to move the piezoelectric unit 8 backward. Further, the linkage member 53 is urged in the return direction by a return spring (not shown) built in the piezoelectric unit 8 and receives a force for rotating the front portion of the operation member 51 upward.
[0026]
Incidentally, as shown in FIG. 4, for reinforcement of the fulcrum member 52, the reinforcing ribs 55 for connecting the operating member 51 in the lower part of both sides of the fulcrum member 52 that has been installed.
[0027]
The effect | action is demonstrated about the igniter 1 of this embodiment. First, as shown in FIGS. 1 to 5, when the operation member 51 and the lock member 54 are not operated (the neglected state), the lock member 54 is locked by the biasing member 6. The lock portion 54 c interferes with the engaging portion 35 in the retracted position where 54 c protrudes. Even if the operation member 51 is to be rotated in this state, the operation member 51 is in an ignition lock state in which the operation member 51 cannot rotate, that is, cannot be ignited due to the interference.
[0028]
Next, at the time of ignition, as shown in FIG. 6, a finger is put on the operation portion 54 a of the lock member 54 in the operation portion 51 a of the operation member 51, and the lock member 54 is first moved in the arrow direction of the biasing member 6. Operate to push up from the rear against the urging force. As a result, the rear end portion of the lock portion 54c is immersed in the operation member 51, the interference with the engaging portion 35 is released, and the operation member 51 can be rotated.
[0029]
As shown in FIG. 7, when the lock member 54 is released and the front part of the operation member 51 is rotated so as to be pushed in the direction of the arrow, the linking member 53 moves the piezoelectric unit 8 backward by this ignition operation. Then, the projection 81 rotates the operating lever 72 to pull up the nozzle member 71 and open the valve mechanism 7 to supply gas to the ejection nozzle 9 through the gas pipe 73. In addition, a discharge voltage is generated with the operation of the piezoelectric unit 8, a discharge spark is generated between the discharge electrode of the rod-like portion 4 and the ejection nozzle 9, and the ejection gas is ignited.
[0030]
When the rotation push of the operation member 51 is released to stop the use, the operation member 51 is returned and rotated in the reverse direction by the return spring (not shown) in the piezoelectric unit 8 to return to the initial position. When the finger is released from the operation portion 54a of the lock member 54, the lock member 54 is moved rearward by the urging force of the urging member 6, and the lock portion 54c is projected to interfere with the engagement portion 35. , Automatically return to the ignition lock state. Further, when the finger is released from the lock member 54 before the operation member 51 returns and rotates, the lock portion 54c tends to protrude by the biasing member 6, but the lock portion 54c is formed on the wall surface of the upper case 31a. After sliding in contact with, it protrudes at the interference position and returns to the initial position.
[0031]
According to the present embodiment, before the rotation operation of the operation member 51 is performed, an unlocking operation for sliding the operation portion 54a of the lock member 54 is required, and the lock member 54 is always engaged with the engagement portion 35 in a non-use state. The ignition lock state is obtained by interfering with the motor and automatically returns to the locked state after use, so that the intended lock function to prevent inadvertent ignition can be obtained. Can be rotated smoothly and the operability is good.
[0032]
Note that the ignition device for generating the discharge voltage may be constituted by a discharge circuit using a battery instead of the piezoelectric unit 8 described above.
[Brief description of the drawings]
FIG. 1 is an external perspective view of an igniter according to an embodiment of the present invention. FIG. 2 is a central longitudinal plan view of FIG. 1. FIG. 3 is a cross-sectional side view of an operating mechanism. FIG. 5 is a cross-sectional side view showing the support structure of the operating member. FIG. 6 is a cross-sectional side view showing the unlocked state of the operating mechanism of FIG. Cross-sectional side view showing condition [Explanation of symbols]
1 igniter (ignition rod)
2 Tank part 3 Operation part 4 Rod-like part 5 Operation mechanism 6 Energizing member 7 Valve mechanism 8 Piezoelectric unit (ignition device)
9 Spout nozzle
21 Tank body
31 Main unit case
34 Bearing
35 Engagement part
51 Operation members
51a Operation unit
51b Groove
51c slotted hole
51d insertion hole
52 fulcrum members
53 Linking member
54 Locking member
54a Operation unit
54b Connecting part
54c Lock part
71 Nozzle member
72 Actuating lever

Claims (1)

An ejection nozzle that is disposed at the tip of the rod-like portion and ejects gas; a tank portion that contains fuel; a valve mechanism that opens and closes the supply of gas from the tank portion to the ejection nozzle; and generates a discharge voltage for ignition In an igniter including an ignition device that performs an ignition operation and an operation mechanism that performs an ignition operation,
The operation mechanism includes a button-type operation member disposed in the middle of the main body case, a fulcrum member disposed as a rotation center on one end side of the operation member, and the fulcrum member standing on the main body case and supporting the fulcrum member. The support member is rotatable by the pushing operation on the other end side, the linkage member that operates the ignition device in response to the rotation of the operation member, and the operation member from one end side to the other end side. When movably installed and in a non-operating state, a part of it protrudes and interferes with the main body case to inhibit the operation member from rotating, lock the ignition, and operate when the other end moves in the unlocking direction. A locking member that immerses into the member and releases the lock; and a biasing member that biases the locking member in the locking direction;
The lock member is unlocked from one end side to the other end side to remove the interference, and then the other end side of the operation member is pushed and rotated to perform an ignition operation. With the return movement of the operation member, The igniter characterized in that the lock member automatically returns to an ignition lock state.

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