JPS589084Y2 - Gas lighter fuel inlet socket - Google Patents

Description

[Detailed description of the invention] This invention relates to a socket that is attached to a fuel inlet provided in advance on the bottom of the fuel tank in order to fill the fuel tank with liquefied gas after assembling a simple gas lighter. It is something.

After assembling each part of a simple gas lighter, the tip of the fuel gas supply pipe is pressed into contact with the fuel inlet, and after fuel is injected, a stopper made of metal, hard resin, etc. is driven into the fuel inlet to seal it. Although it is a finished product, it is fine if the fuel tank is made of a strong material with elasticity such as nylon or Duracon, but if it is made of a relatively weak resin, the plug body is fine. There is a risk that cracks may occur on the rim of the fuel inlet due to the impact.

In order to prevent this fuel inlet from breaking, it is possible to make the fuel inlet thicker in advance, insert a socket made of an elastic material, and drive a plug into the socket. developed the above-mentioned socket, and considered it not only to protect the mouth rim, but also to allow the plug to be inserted at the same time as fuel injection. Then, as shown in FIG. 1, a short tubular member 1 with an inner diameter large enough to fit a conventionally used predetermined plug a is formed using an elastic material such as base rubber. At the same time, one end thereof is provided with a collar edge 2 that projects outwardly, and a cut line 3 of a required length is recessed along the axis from the mouth edge of the same end to the inner peripheral surface. .

This idea has the above structure, and in order to use it, the second
As shown in the figure, hold the assembled gas lighter with the bottom cylinder of the fuel tank 4 facing upward, and press fit the socket of this invention into the conical hole previously made in the bottom of the fuel tank 4.
Lock and fix with the brim edge 2.

Next, insert a specified stopper a into the socket so that the curved surface is the notched line 3.
After inserting and holding the socket in such a way that it is enclosed by the socket, the tip of the fuel gas supply pipe (not shown) is brought into contact with the open end of the socket to supply fuel gas.

Then, the liquid fuel gas passes through the notches 3 and enters the socket, and is sealed in the fuel tank as shown by the arrow.

After filling the liquefied gas in this manner, the fuel gas supply pipe is removed, and at the same time, the stopper a, which was held in place at one end of the socket, is installed into a separate push rod (not shown) or into the fuel gas supply pipe, and the housing is installed. Push it deeply into the socket through the rod that is attached.

As a result, as shown in FIG.
The tip is pushed to the other end opening of the socket at 1 after passing through 1, and the other end opening of the socket squeezed by the conical hole of the fuel tank 4 is closed, and the sealing is completed.

As mentioned above, since this device is made of elastic material such as rubber, the hard stopper a cannot be driven into the fuel tank.
There is no risk of the valve being destroyed, and since the plug body a is held through the notches 3 without blocking fuel injection, the plug body a can be opened at the same time as the fuel supply from the fuel gas supply pipe is stopped. As a result, the loss of fuel gas can be reduced, and the plug body a can be sequentially supplied into the fuel gas supply mechanism to perform a constant filling operation continuously. There are many advantages, such as the possibility of automating the device and greatly reducing manufacturing costs.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of this invention, FIG. 2 is a cross-sectional view showing the state in which the plug is inserted and held, and FIG. 3 is a cross-sectional view showing the state after the plug is inserted. Codes in the figure: 1 is a short tubular member, 2 is an edge, 3 is a cut line,
4 is the fuel tank, and a is the plug.

Claims (1)

[Scope of utility model registration request] A short tubular member 1 made of an elastic material such as rubber is press-fitted into a conical hole pre-drilled in the bottom of the fuel tank 4, and has an inner diameter large enough to fit a predetermined plug a, and extends outward. A socket for a fuel inlet of a gas lighter, in which a brim 2 is formed, and a cut line 3 of a required length is recessed along the axis from the opening rim at one end to the inner circumferential surface.