JPH0351651Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is designed to close the flame port of a disposable gas lighter that has a piezoelectric ignition mechanism, and also to operate the safety lid of the gas lighter to make the ignition operator inoperable. Relating to locking devices.

(Prior Art) Conventionally, as a disposable gas lighter with a piezoelectric ignition mechanism, a windshield having a flame port at the top of the lighter body and an ignition operator are arranged next to each other, and the top surfaces of both are arranged on approximately the same plane. Tonashi,
By pushing the ignition operator into the main body of the lighter, a piezoelectric unit having a piezoelectric element and a striking mechanism housed in the main body of the lighter is operated, and the valve of the gas ejection nozzle in the windshield is opened. Products are widely available (1987-
(See Publication No. 150273).

In addition, there was a safety device for gas lighters in which the push-in operation of the ignition operator was locked by a stopper (stop button) attached to the outer surface of the ignition operator or near it (1983-
(See Publication No. 129671).

(Problem to be solved by the invention) In the case of the former gas lighter (Japanese Utility Model Publication No. 55-150273), which has a conventional piezoelectric ignition mechanism, The valve of the gas jet nozzle is opened at the same time, and a spark discharge is generated to ignite the product, so it is possible that children or others may operate it by mistake, resulting in accidents such as fires and burns. There was a problem.

In other words, this type of gas lighter, represented by disposable lighters (so-called 100-yen lighters), is produced and sold by one company alone in the hundreds of thousands of units per month.
It is now well-received as a ``cheap and easy-to-use lighter'' in all countries, both domestically and internationally, and by everyone from children to adults.

However, with this type of gas lighter, the valve of the gas jet nozzle is automatically opened by the operation of the ignition operator, and a spark discharge for ignition is generated, making ignition easy. Coupled with the frequent occurrence of burns caused by children's incorrect operation, there was a social demand for gas lighters equipped with safety devices such as stoppers.

Therefore, simply attaching a stopper cannot meet the need for a disposable gas lighter that is inexpensive and has a minimum number of parts.

For example, a safety device for gas lighters (1983-1983) in which the push-in operation of the ignition switch was locked by a brown stopper (stop button).
129671), a leaf spring with both ends folded inside a horizontally long slit formed in the peripheral wall of the cover of the lighter body and a small hole in the center is inserted into a finger with a screw hole in the center. By arranging the hanging members, inserting machine screws into the small holes, and screwing the ends of the machine screws into the screw holes through the slits to an appropriate depth, the bent portions near both ends of the leaf spring can be fixed. The magnitude of the frictional force between the outer surface of the cover and the inner surface of the peripheral wall of the cover is adjusted to eliminate the rough interlocking of the finger hook member, and when the finger hook member is slid until the machine screw approaches one end of the slit, Since the inward folded part of the leaf spring enters the underside of the ignition operator and makes it impossible to push down the ignition operator, such a configuration requires a complicated assembly structure and is difficult to install. In addition to being time-consuming, it is necessary to assemble the leaf spring, finger hook, and small screws before attaching the cover and ignition control, so it is necessary to ignite the locking means in parallel (at the same time) with assembling the lighter. It has the disadvantage that it must be installed under the operator, and it cannot be easily installed separately after the subsequent process, that is, after the lighter is assembled.

In addition, at the very least, the number of parts such as covers, leaf springs, finger hooks, and small screws must be increased, which makes it impossible to meet the needs for inexpensive disposable gas lighters that minimize the number of parts. It was hot.

In addition, this type of disposable lighter has its flame mouth open and the ignition part exposed, so if the nozzle does not close completely due to dust, etc., which is extremely rare, fireflies etc. Embers may burn the pocket or cause a fire accident due to gas leakage, which may pose a safety problem.

The present invention was developed in view of these conventional problems and demands, and is a simple method that does not require a large number of parts. In other words, it is a simple method that does not require a large number of parts. In other words, it is a simple method that does not require any unnecessary parts. Moreover, this is an easy-to-operate locking device for gas lighters that eliminates the trouble of assembling the locking means under the ignition operator in parallel (at the same time) with the lighter assembly, which was required in the past. In addition, when the burner cap piece is rotated toward the windshield side, the burner cap piece protrudes from the top of the windshield and closes the burner opening, thereby closing the burner opening when not in use. The object of the present invention is to provide an operation lock device that can also be used as a safety lid for a gas lighter, which can prevent accidents caused by infiltration of dust, etc., and embers, such as fireflies.

(Means for solving the problem) In view of the above-mentioned problems, the characteristic structure of the present invention in order to achieve the initial objective is to push a windshield surrounding the gas jet nozzle and a piezoelectric unit into the end face of the lighter body. In a gas lighter, the ignition operator is arranged adjacent to the ignition operator and is provided with a stopper on or near the outer surface of the ignition operator that prevents the ignition operator from being pushed in. Gas lighter safety lid operation consisting of a flame spout cap piece that is rotatably supported on the top surface of the child and is attached so as to protrude from the top of the windshield and close the flame spout when it is rotated toward the windshield side. Located in the locking device.

(Function) In the present invention configured as described above, the stopper is rotatably supported on the top surface of the ignition operator, and when the stopper is rotated toward the windshield, it projects from the top of the windshield to open a flame port. Since it consists of a flame cap piece that is attached so as to close it, it can be attached to the top of the ignition operator with a single touch, and the operation locking device of the gas lighter can be attached to the flame cap piece (minimum number of parts required). ), and if you rotate the burner cap piece toward the windshield, the burner cap piece will protrude to the top of the windshield and close the burner port, preventing dust etc. from entering from the burner port when not in use. I will do it.

(Example) Next, one embodiment of the present invention will be described with reference to the drawings.

In the figure, reference numeral 1 denotes a lighter body, which consists of a gas tank 2, a cap 3 that closes the opening of the gas tank 2, and an intermediate case 4 supported on the cap 3. A piezoelectric unit 5 is inserted. Although not shown in the figure, the piezoelectric unit 5 has a built-in piezoelectric element and a striking mechanism for striking it, and a high potential difference is created between the terminals 6 and 7 by pushing in the upper end.

The piezoelectric unit 5 is housed in the lighter body 1 with its upper end protruding from the upper end of the intermediate case 4. An ignition operator 8 is attached to the upper end of the piezoelectric unit 5.
is covered.

The ignition operator 8 has a discharge electrode 9 connected to the terminal 6 projecting from the front of the upper end, and a protrusion 8a on the front surface of the upper end abuts against the lower side of the windshield 10 to prevent it from coming off.

This windshield 10 is made of press-molded metal plate,
Cut-and-raised piece 10a cut inward on the body part
is engaged with a recess on the outer surface of the intermediate case 4a and is prevented from coming off.

Further, a gas jet nozzle 11 is protruded from the upper end of the lighter body 1 toward the flame port 10b of the windshield 10.
When the operating lever 12 is operated in the drawing direction, the valve 13 is opened and gas is ejected. Further, the operating lever 12 is made of a conductive material, and by pushing down the ignition operator 8, the operating part of the piezoelectric unit 5 is pushed down, the terminal 7 comes into contact with the operating lever 12, and the lever 12 is connected to the valve 13. After the nozzle is operated in the opening direction, a high voltage is generated, a spark discharge is made between the nozzle 11 and the discharge electrode 9, and the nozzle is ignited.

A plate-shaped burner cap piece 14 is attached to the top surface of the ignition operator 8 in an overlapping manner. This burner cap piece 14 is supported so as to be rotatable around a pin 15, and when it is rotated toward the windshield 10 side, the burner port 10b at the top of the windshield is closed.

Further, a small protrusion 14a for moderation is formed on the lower surface of the flame cap piece 14, and by fitting this into a concave hole 8b for moderation on the top surface of the ignition operator 8, the flame cap piece 14 is held in a predetermined direction so as to close the flame port 10b. In this way, when the flame port cap piece 14 is in the flame port closed state, even if an operating force in the pushing direction is applied to the ignition operator 8, the flame mouth cap piece 14 fixed to the ignition operator 8 side will not move. It is not operated because it is in a locked state as it hits the top surface of the windshield 10.

(Effect of the invention) In the gas lighter safety lid operation lock device according to the invention, the stopper is rotatably supported on the top surface of the ignition operator, and when the stopper is rotated toward the windshield side, the stopper is rotatably supported on the top surface of the ignition operator. Since it consists of a flame cap piece that extends over the top and is attached to close the flame opening, it can be attached to the top of the ignition operator with a single touch, so the assembly structure is simple and requires no effort to install. Moreover, it eliminates the trouble of assembling the locking means under the ignition control element in parallel (at the same time) with the lighter assembly, which was required in the past, and requires only the burner cap piece (minimal increase in parts). We are now able to provide an operation lock device for gas lighters.

In addition, the locking and unlocking operations can be performed with the thumb placed on the ignition control, making it easy to operate.Moreover, by rotating the burner cap piece toward the windshield, the burner cap piece can be removed. This has the effect of protruding from the top of the windshield to close the flame opening, thereby preventing dust and the like from entering through the flame opening when not in use.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention.
The figure is a perspective view of the main part, and FIG. 2 is a longitudinal sectional view. 1... Lighter body, 5... Piezoelectric unit, 8
...Ignition operator, 14, 15...Concave groove, 16...
Stopper piece, 16a...engaging part, 16b...cap part.

Claims (1)

[Scope of utility model registration request] A windshield surrounding a gas ejection nozzle and an ignition operator for operating the piezoelectric unit in the pushing direction are arranged adjacent to each other on the end face of the lighter body, and the pushing operation of the ignition operator is prevented on or near the outer surface of the ignition operator. In the gas lighter, the stopper is rotatably supported on the top surface of the ignition operator, and when rotated toward the windshield, protrudes from the top of the windshield to block the flame port. A safety lid/operation lock device for a gas lighter, characterized by comprising a flame cap piece attached as shown in FIG.