WO1992008931A1

WO1992008931A1 - Safety device of gas lighter

Info

Publication number: WO1992008931A1
Application number: PCT/JP1991/001586
Authority: WO
Inventors: Tadahisa Matsumoto
Original assignee: Tokyo Mac Co., Ltd.
Priority date: 1990-11-20
Filing date: 1991-11-19
Publication date: 1992-05-29
Also published as: JPH04186018A; CN1064142A

Abstract

A safety device for preventing ignition of a gas lighter, which is superior in operability, durability and reliability. This device has such an arrangement that a safety switch for short-circuit discharging, which is separated from jetted gas, is provided between both poles of a piezo-electric member, and this safety switch is operated when necessary, whereby short-circuit discharging occurs between the both poles of the piezo-electric member, so that discharge for ignition is prevented, thereby preventing ignition.

Description

Specification

Gas lighter safety equipment

〔Technical field〕

The present invention relates to a safety device for a gas lighter, and more particularly, to a gas lighter provided with an electric ignition device, which is provided with a safety switch for short-circuit discharge, which is isolated from jet gas.

(Background technology)

Conventional safety devices for gas lighters include those shown in FIGS. 6 and 7, for example. In FIG. 6, a top plate 3 is provided on the upper surface of an operator 2 of a gas lighter 1 so as to be rotatable about an axis 4. The operator 2 cannot be lowered by rotating the top plate 3 so that it is positioned above the hood 5, so that the operator attempts to ignite. Can be prevented. Also, as shown in FIG. 7, a pair of opposing grooves 9 and 10 are recessed on both sides of the upper side of the operator 7 and the hood 8 of the gas lighter 16 so as to be continuous on the side. The lid 11 is slidably provided by partially fitting the grooves 9 and 10. By sliding the lid 11 to cover the upper surface of the hood 8 and at the same time, locating a part of the groove 9 and 10 so that it is partially engaged, the operation element 7 cannot be lowered and attempts to ignite. Even if the user attempts to push down the operator 7, the operator 7 does not move down, thereby preventing ignition. FIG. 8 is a cross-sectional view of a main part common to the gas lighters according to the conventional example. A piezoelectric unit 12 is provided inside the gas lighters 1 and 6, and when the actuators 2 and 7 are lowered to a certain position, they are biased by a spring or the like, not shown. The hammer strikes the piezoelectric body 13, and a voltage is generated at both poles 13 a and 13 b of the piezoelectric body 13. This voltage is guided to one discharge electrode 14 for ignition and the nozzle 15 as the other discharge electrode to cause discharge, and the spark ignites the gas ejected from the nozzle 15. The metal protrusion 16 provided near the pole 13 b of the piezoelectric body 13 descends as the operators 2 and 7 descend, and the conductive lever 17 rotates to rotate the nozzle 15. Is lifted and gas is ejected, and at the same time, the voltage generated in the piezoelectric body 13 is guided to the nozzle 15. In the figure, reference numeral 18 denotes an adjusting lever, which adjusts the state of gas ejected from the nozzle 15 force.

However, in such a conventional safety device, the descent of the operator is mechanically limited, and the operator is fixed so that the operator does not descend even if the user tries to ignite. There was a problem. In other words, because of the mechanical nature, operation with relatively large movement is required for use and release, and in the release state, operation is inferior, such as obstruction. Since these parts were required to be small and lightweight, they could not have sufficient strength and were inferior in durability. In other words, there was a problem that it was difficult to use in actual use, and there was the danger that it would be damaged if inadvertently operated with a strong force.

The present invention has been made by paying attention to such a conventional technique, and has as its object to provide a safety device for a gas lighter which is excellent in operability, durability and reliability.

[Disclosure of the Invention]

The safety device for a gas lighter according to the present invention solves the above-described problems. In order to solve this problem, a safety switch for short-circuit discharge is provided between the two electrodes of the piezoelectric body, which is isolated from the jet gas. Further, the safety switch has a conductor portion which can be freely approached to both poles of the piezoelectric body and can be separated from at least one of the poles. Further, the conductor portion has a predetermined length with respect to the length of the piezoelectric body, is arranged in parallel close to the piezoelectric body, and is operated by an operating portion exposed on the outer surface of the gas lighter. That is what it is.

In the safety device for a gas lighter according to the present invention configured as described above, when the conductor of the safety switch is located in the operating state close to both poles of the piezoelectric body, the voltage generated in the piezoelectric body is Short-circuit discharge occurs via this conductor, and no discharge occurs between the discharge electrodes for ignition. In addition, the conductor is located in a part that is isolated from the ejected gas. Even if a short-circuit discharge causes sparks, the ejected gas does not ignite. As a result, even if the operator is pushed down, the ejected gas does not ignite and it is excellent in reliability, and since there is no mechanical restriction means, even if it is inadvertently operated with a strong force, it will be damaged, etc. There is no danger and the durability is excellent. In addition, operability is excellent because only a slight operation is required to change the position of the conductor.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part showing an embodiment of a gas lighter safety device of the present invention.

FIG. 2 is a cross-sectional view taken along line 示 -Π in FIG.

FIG. 3 is a side view showing the main parts of the piezoelectric unit, the operation device, and the safety device shown in FIG.

FIG. 4 is a side view as viewed from the direction indicated by the arrow W in FIG.

FIG. 5 is a side view corresponding to FIG. 4 showing an operation state of the safety device. FIG. 6 and FIG. 7 are perspective views of main parts showing a conventional safety device of a gas lighter, respectively.

FIG. 8 is a sectional view of a main part common to each of the conventional gas lighters shown in FIGS. 6 and 7.

[Mode for Carrying Out the Invention]

A preferred embodiment of the present invention will be described below with reference to the drawings shown in FIGS. In addition, the same reference numerals are given to portions common to the related art, and duplicate description will be omitted.

In this example, a recess 22 is provided on a side surface of an operation element 21 which is an outer surface of a gas lighter 20, and an operation section 24 of a safety switch 23 is slidably provided in the recess 22. It is a thing. A conductor 25, which is a metal plate, is attached to the back of the operation unit 24. The conductor 25 is a piezoelectric unit of the piezoelectric unit 12 provided inside the operation unit 21. Are arranged in parallel close to each other. Then, by operating the operation portion 24 by sliding it up and down in the recess 22, the conductor portion 25 is evenly applied to both poles 13 a and 13 b of the piezoelectric body 13 as shown in FIG. They are brought into the operating state by bringing them close to each other, or are released only from one of the poles, in this example, pole 13b in this example, as shown in FIGS. 3 and 4. In this way, the safety switch 23 is attached to a part of the operation member 21 and moves up and down in the direction of arrow A, which is an ignition / extinguishing operation, together with the piezoelectric unit 12 provided therein. However, the present invention is not limited to this example, and may be attached to a gas lighter main body other than the operator 21. Further, the conductor part 25 itself may be used also as the operation part without using the operation part 24.

When the conductor part 25 of the safety switch 23 configured as described above is operated by the operation part 4 and is placed in the operating state as shown in FIG. 5, Even when the operator 21 is pushed down to ignite, the voltage generated in the piezoelectric body 13 is short-circuited through the conductor 25 as shown by arrow B in the figure, causing the ignition electrodes 14 and 15 to discharge. No inter-discharge occurs. In addition, the conductor 25 is located in a place isolated from the gas to be ejected, so that even if a short-circuit discharge causes sparks, the gas to be ejected does not ignite.

As another example (not shown), a rod-shaped or plate-shaped conductor is rotatably interposed between the two poles of the piezoelectric body in place of the sliding switch as in the above example. A dynamic switch may be used. In addition, the conductor may be prepared separately and inserted from the outside without being incorporated in the gas writer. In addition, the safety switch forms an electric circuit for short-circuit discharge by extending the conductors from both poles 13a and 13b of the piezoelectric body 13 to other predetermined parts, and a mere conduction provided between them is provided. May be used as an electric switch.

[Industrial applicability]

The safety device for a gas lighter according to the present invention has the contents as described above. Even if the operator is pushed down, the jet gas does not ignite, so that the safety is excellent and there is no mechanical restriction means. Therefore, there is no danger of being damaged even if the operator is manipulated with a strong force by accident, resulting in excellent durability. In addition, it can be operated and released by a simple operation that only changes the position of the conductor, so it is excellent in operability and does not hinder the ignition operation in the released state. The above operability is also excellent.

Claims

The scope of the claims

(1) In a gas writer equipped with an electric ignition device that discharges a voltage generated between both electrodes of a piezoelectric body between discharge electrodes for ignition and ignites the ejected gas,

A safety device for a gas lighter, wherein a safety switch for short-circuit discharge is provided between both electrodes of the piezoelectric body, which is isolated from the ejected gas.

(2) The gas lighter according to claim 1, wherein the safety switch includes a conductor portion that can be freely approached to both poles of the piezoelectric body and is separated from at least one of the poles. Safety equipment.

(3) The conductor portion has a predetermined length with respect to the length of the piezoelectric body, is disposed in parallel with the piezoelectric body, and is exposed by the operating portion exposed to the outer surface of the gas lighter. The safety device of a gas lighter according to claim 2, which is to be operated.