JPS6110309Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the structure of the packing for a lamp socket, which is easy to attach to the lamp socket, does not easily come off once attached, and exhibits excellent sealing performance. The structure is also designed to be simple.

For example, various display lamps in automobiles have conventionally been constructed as shown in FIGS. 1 and 2. That is, 1 is the windshield, 2 is the lamp case, 3
is the lamp cover, 4 is the lamp, 5 is the packing, 6
7 is a lamp socket, and 7 is a terminal accommodated in the lamp socket 6 and connected to the lamp 4. In the case of this indicator lamp A, in order to seal between the lamp cover 3 and the lamp socket 6, the lamp socket 6 has a brim-like packing fixture 6 on the front of its outer periphery.
A is provided around the fixture 6a, and in front of the fixture 6a is a gasket fitting ring 6 which is further tapered to prevent the gasket from falling off.
b, and an adapter 6c with a locking claw 6d for the opening 3a of the lamp cover 3.

Therefore, when assembling the indicator lamp A, it is necessary to attach the gasket 5 manually, and it is troublesome to fit the gasket, as it may fall off if it is not completely installed, and the structure of the lamp socket is Because it has a complicated shape to prevent the packing from falling off and to ensure sealing performance, it has the drawback of making it difficult to reduce the overall weight and size. Furthermore, due to the complicated shape of the mold, it is difficult to fit the packing into the ring. There was a drawback that burrs P were formed on the outer periphery of 6b, making it difficult to achieve a complete seal.

The present invention has been made in view of the above-mentioned drawbacks, and provides a lamp socket gasket that is easy to attach to the lamp socket and exhibits excellent sealing properties that prevent it from coming off once installed, by devising the structure of the gasket itself. Additionally, in connection with the structure of the packing, the structure of the lamp socket is simplified, making it easy to reduce the size and weight of the lamp socket.

Hereinafter, one embodiment of the present invention will be explained based on the drawings. In FIG. 3, B is a packing for a lamp socket, which is made up of an elastic sealing member 8 and a reinforcing member 9 made of elastic metal sealed therein. configured.

The elastic sealing member 8 has a mounting hole 8a for the lamp socket in the axial direction, and is formed as a substantially truncated conical member 8b whose diameter gradually increases from the base end to the distal end. A protrusion 8c is provided in a protruding manner. This elastic sealing member 8 is made of an elastic material made of synthetic rubber such as EPDM, CR, NBR, silicone rubber, or natural rubber, and has water resistance, ozone resistance, heat resistance, oil resistance, etc., depending on the location, temperature, humidity, etc. Select and manufacture the material that best suits the conditions.

The reinforcing member 9 is made of an elastic metal material such as steel, brass, or phosphor bronze, and has a shape that increases in diameter from the proximal end toward the distal end, and the proximal end 9a is corrugated as shown in FIG. Alternatively, it may have a shape in which arbitrary uneven portions 9b such as a sawtooth shape or a slit shape are continuously provided. This reinforcing member 9 is the elastic seal member 9
When molded using a mold, it is sealed inside and integrally molded.

In the above configuration, in order to use the lamp socket packing B, as shown by the two-dot chain line in FIG.
It may be moved to a position that satisfies sealing performance in relation to the lamp cover 3 (see FIG. 1).

This lamp socket packing B has a rubber-like reinforcing member 9 embedded in the elastic sealing member 8, so it is easy to insert when installing, and when removing, the uneven part 9b on the base end side 9a will touch the outer periphery of the socket B. It has a structure that is extremely difficult to remove because it acts as if it were tightening. Therefore, the gasket B can be easily inserted automatically using a jig, and the gasket B can also be used when attaching the lamp socket 10 to the lamp cover 3.
There is no risk that the sealing performance will be impaired due to shifting of the position.

Further, in relation to the structure of the lamp socket packing B, the lamp socket 10 is formed as a uniform cylindrical body that houses the terminal 7 therein, and has a lock pawl 1 corresponding to the lock pawl 6d at the front end thereof.
Since it has a simple structure in which 0a is provided, it is easy to reduce the size and weight, and furthermore, there is no occurrence of burrs, which is a drawback of the prior art, so a perfect seal can be achieved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional indicator lamp in its separated state, FIG. 2 is a perspective view of its assembled state, FIG. 3 is a longitudinal cross-sectional view showing an embodiment of the lamp socket packing according to the present invention, and FIG. is a plan view of the reinforcing member 9,
FIG. 5 is an explanatory diagram of the usage state of the packing according to the present invention. 8...Elastic sealing member, 8a...Insertion hole, 9...
...Reinforcing member, 9a... Proximal end side, 9b... Uneven part.

Claims (1)

[Scope of utility model registration request] Inside the truncated cone-shaped elastic seal member, which has an insertion hole for the lamp socket in the axial direction and whose diameter gradually increases from the base end to the distal end, there is an elastic seal member whose diameter gradually increases from the base end to the distal end. 1. A packing for a lamp socket, characterized in that a reinforcing member made of metal is encapsulated therein, and a corrugated or slit-like uneven portion is continuously provided on the proximal end side of the reinforcing member.