JPS5812028Y2 - gas lighter - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a disposable gas lighter filled with liquefied gas, and has a structure in which the fuel gas opening/closing mechanism can be manufactured at a lower cost than conventional ones.

Conventionally, as shown in FIG. 5, the fuel gas opening/closing mechanism is a single blind pipe in which the fuel injection pipe 6' is closed at the lower end and a small hole 5' is provided near the lower end leading to the inside. is attached to the center hole 2' of a plug body 1' made of a soft elastic material such as rubber fitted to the upper end of the fuel tank, and the fuel injection pipe 6' is tilted at the same time as ignition via the ignition mechanism 8'. Accordingly, a device has been developed in which a gap is created between the small hole 5' and the inner surface of the center hole of the plug body 1', thereby opening a passage for fuel gas.

This product has a simple structure and is efficient, but when actually making the fuel injection pipe 6', the lower end of one straight pipe is closed with solder in advance, and then a small hole 5' is cut horizontally slightly above it. Therefore, if the amount of .-. is too large, the small hole may not be properly opened as a communicating hole, resulting in disadvantages such as poor machining efficiency and the need for post-machining inspection.

On the other hand, in this invention, the fuel injection pipe is simply one
It is formed from a straight pipe to greatly reduce the processing effort, and as shown in Fig. 1, the plug body 1 is made of a soft elastic material such as rubber and is fitted to the upper end of the fuel tank. In the center hole 2,
A top-shaped metal seat 5 having a protruding short column 4 is fitted in advance on the top surface of the disc 3, and then a fuel injection pipe 6, which is a straight pipe with upper and lower ends open, is inserted into the seat at its lower end. The short pillar 4 of No. 5 is held in a loosely inserted state.

Note that 7 is a core thread for fuel suction, which is made by piercing a fine thread through the plug body 1 with a sewing needle and then cutting both ends to a required length.

The parts not shown, such as the ignition mechanism, are the same as those of the prior art.

In FIG. 2, the injection pipe 6 and seat 5 are exploded and partially shown in cross section.

This invention has the above structure, and when the fuel injection pipe 6 is pressed and tilted to one side via the ignition mechanism, the lower end of the fuel injection pipe 6 is pushed toward the inner wall of the center hole 2 of the plug body 1 to one side, as shown in FIG. In order to press the seat 5, gaps a, b, and c are formed in the side and part of the upper and lower surfaces of the seat 5, respectively, and the fuel gas filling the bottom of the center hole 2 passes through the gap a from the gap C and reaches the seat 5. After emerging from the top, the fuel passes through the gap and enters the fuel injection pipe 6, where it is ejected from the crater at the upper end and ignited by the ignition mechanism.

As shown in FIG. 3 which shows the operating state and FIG. 4 which is an enlarged view of the main part, the upper and lower sides of the disc 3 of the catch seat 5 have inclined sides of 31° and 32°.
Therefore, a gap is formed at the sloped side and serves as a passage for fuel gas.

The fuel gas passes from the gap C through the gap formed by the lower oblique side 31 to the gap a, and from there passes through the gap formed by the upper oblique side 32 to the gap, and from around the short column 4 to the injection pipe 6.
It is something you can go inside.

Then, when the pressure from the ignition mechanism is released, it returns to the closed state shown in FIG. 1 again.

As described above, this device consists of a fuel gas opening/closing mechanism consisting of a fuel injection pipe 6, which is a straight pipe with both ends open, and a solid seat 5, which can be easily fabricated from metal pipes and metal pieces. This makes it extremely advantageous for continuous mass production, as it eliminates the need for continuity testing of the small holes.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the main parts of this invention, Fig. 2 is a partially disassembled front view of the fuel injection pipe and seat, and Fig. 3 is a sectional view showing the operating state of Fig. 1. 4 is an enlarged view of the main part of FIG. 3, and FIG. 5 is a sectional view showing an example of a conventional lighter. In the figure, -1 is a stopper, 2 is a center hole, 3 is a disk, 4 is a short column, 5 is a seat, and 6 is a fuel injection pipe.

Claims (1)

[Scope of utility model registration request] A plug body made of a soft elastic material such as rubber is fitted to the top end of a cylindrical container-shaped fuel tank and is pierced through the core thread T at the bottom, and a fuel injection pipe is fitted into the center hole of the plug body. In a gas lighter in which the fuel injection pipe is suppressed and tilted through an ignition mechanism located adjacent to the fuel injection pipe, a disc 3 is inserted into the center hole 2 of the plug body 1 in advance. After a top-shaped seat 5 with a short pillar 4 protruding from its top surface is fitted, a straight fuel injection pipe 6 with upper and lower ends opened above it.
A gas lighter characterized in that the short pillar 4 of the catch seat 5 is loosely fitted into the lower end of the fuel injection pipe 6.