JPH0126072Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lamp socket aimed at improving productivity.

Conventional swan-type sockets have a movable contact plate inside a cylindrical receiver that is biased by a spring, but in most cases the range of movement is determined only by the biasing force of the spring.
If the spring pressure is increased in order to increase the contact pressure, there is a drawback that the movable contact plate will protrude more than necessary when the lamp is not attached, and only a small contact pressure can be produced. In some cases, an engagement hole is provided on the side surface of the receiver, and a part of the movable contact plate is engaged with this engagement hole to prevent the movable contact plate from jumping out unnecessarily. However, there is a drawback that it is difficult to attach the movable contact plate to the engagement hole.

The present invention aims to improve productivity by solving the above-mentioned drawbacks, and also improves moldability by dividing the socket shell into two parts.

The present invention will be described below based on one embodiment.

In the drawings, reference numeral 1 denotes a socket body, in which a base 3 made of synthetic resin is molded and fixed to the base of a cylindrical receiver 2, and a movable contact plate 5 is provided between the base 3 and the inside of the receiver 2. A biasing spring 4 is housed, tongue pieces 6 are formed on a part of the side surface of the receiver 2, for example, at two places, and the tongue pieces 6 are deformed inward to lock onto the periphery of the movable contact plate 5. to prevent it from falling out. 7 is a metal seat, 8 and 9 are terminal pieces, and 10 is a J slot. The movable contact plate 5 has a rivet 11 in the center.
is inserted and caulked on the back side, and the metal seat 12 is attached. Reference numeral 13 denotes a cylindrical cover made of synthetic resin, which has an engagement hole 14 at its base that fits the base 3, and is used to accommodate the socket body 1 therein. 15 is a waterproof gasket attached to the end of the cover 13. 16 is a lamp;
The center contact portion 17 contacts the rivet 11, and the pins 18 protruding from two sides are locked in the J slot 10 and conductive.

The present invention is constructed as described above, and has the following effects.

1. Since the deposit 2 is covered with the cover 13,
Good insulation.

2. Since the tongue pieces 6 need only be deformed inward after being placed inside the receiver 2 of the movable contact plate 5, the work of attaching the movable contact plate 5 is facilitated and productivity is improved.

3. Since the movable range of the movable contact plate 5 is restricted by the tongue piece 6, unnecessary protrusion of the movable contact plate 5 can be prevented, so that the spring pressure of the spring 4 can be made sufficiently strong and sufficient contact pressure can be ensured. .

4. Since the cover 13 is made separate from the socket main body 1, the work of deforming the tongue piece 6 is facilitated, and productivity is improved. If cover 13 is attached to socket body 1
If it is integrated with the tongue piece 6, it will be almost impossible to deform the tongue piece 6, so the movable contact plate 5 will have to be forced into the tongue piece 6 which has been deformed in advance. It would be impossible if we did not add springiness to 6.

5. Since the cover 13 and the socket body 1 are made separate, only the base 3 needs to be molded and fixed to the receiver 2, so the mold structure becomes simple and the molding work becomes easy.

[Brief explanation of drawings]

Each of the drawings shows an embodiment of the present invention.
The figure is an exploded perspective view of the socket body, FIG. 2 is an exploded perspective view of the cover, and FIG. 3 is an assembled sectional view. 1... Socket body, 2... Receiver, 3... Base, 4... Spring, 5... Movable contact plate, 6...
... tongue piece, 13 ... cover, 14 ... engagement hole.

Claims (1)

[Scope of utility model registration request] A base made of synthetic resin is molded and fixed to the base of a cylindrical receiver, a spring is provided between the receiver and the base and biases the movable contact plate, and a spring is installed on the side of the receiver. A socket body which is locked to the periphery of the movable contact plate to prevent it from coming off by deforming the formed tongue piece inward, and a synthetic resin having an engagement hole that fits the base and housing the socket body therein. lamp socket with a cylindrical cover made of