JPS5848785Y2 - fluorescent light socket - Google Patents

Description

[Detailed description of the invention] The present invention relates to the improvement of fluorescent lamp sockets, and its purpose is to provide fluorescent lamp sockets 1 to 1 whose performance does not deteriorate even when used in harsh environments. .

Conventional fluorescent light socket I.1. Since the E body is a plastic molded product, if it is used in a place where it is exposed to organic solvents or rainwater, for example, the body may crack or deteriorate, impairing its function as a socket 1. .

The present invention has been devised in view of these drawbacks, and one embodiment of the present invention will be described below with reference to the drawings.

1 is a bottomed cylindrical socket body made of porcelain, and a connection block 2 is fixed to the bottom 1a with screws 3;
Further, a waterproof gasket 4 is fitted onto the opening edge 1b of the main body 1.

As shown in FIG. 2, the block 2 includes a guide stem 2a, a plunger 2b, a conductive plate 2C1 and a holding spring 2a.
, a back plate 2e, screws 2f, a compression spring 2g, and a bottom plate 2h.These parts are assembled in advance using the bottom plate 2h as a board, and have external dimensions that allow them to be loosely fitted inside the main body 1.

The plunger 2b has a receiving hole 21 for receiving the lamp base.
A conductive plate 2C1 holding spring 2d is provided in the receiving hole 21.

The waterproof gasket 4 has a lamp insertion hole 5 in the center, and is formed so as to come into close contact with the outer peripheral surface of the lamp when the lamp is attached.

In this embodiment, a socket for a high-output fluorescent lamp has been described, but there is no need to be limited to this.

The fluorescent lamp socket of the present invention has a bottomed cylindrical porcelain socket body as described above, a connection block housed inside the socket body for connecting and holding a lamp cap, and a lamp insertion hole that tightly contacts the outer circumferential surface of the lamp. In the fluorescent lamp socket I, which has a hole in the center and includes a waterproof gasket that covers and fits over the front opening of the socket body, the connection block is prevented from being pulled out from the bottom plate fixed to the inner bottom surface of the socket body. A plunger having a protruding guide stem at its tip, a receiving hole for receiving a lamp base, and a conductive plate connected to a power source inside the receiving hole is slidably inserted onto the guide stem, A compression spring is sandwiched between the plunger and the bottom plate, and the plunger is pressed against the plunger to prevent the tip of the guide stem from coming out.The bottom plate is fixed to the bottom surface of the socket body, and the plunger can be moved back and forth into the socket body. The socket body is characterized by the fact that it is equipped with a socket, so even if it is used in a harsh environment where it is exposed to organic solvents or rainwater, the socket body will not crack or deteriorate like conventional sockets. There is no fear, and since the socket and the opening of the main body are covered with waterproof packing, the inside is sealed, so there is no risk of impairing its function as a socket.

Furthermore, although the socket body is made of porcelain with poor dimensional accuracy, the lamp base contact block is loosely fitted into the body, so it is not affected by dimensional errors in the body, and the block structure makes assembly easier. The plunger slides along the guide stem and moves smoothly forward and backward, making it possible to provide a fluorescent lamp socket with extremely stable performance.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the same.

Claims (1)

[Scope of utility model registration request] a bottomed cylindrical porcelain socket body; a connection block that is housed inside the socket body and connects and holds a lamp base;
In a fluorescent lamp socket that has a lamp insertion hole in the center that is in close contact with the outer circumferential surface of the lamp and includes a waterproof gasket that fits over the front surface of the opening of the socket main body, the connection block includes:
A guide stem with a pull-out stop at the tip is provided protruding from a bottom plate fixed to the inner bottom surface of the socket body, and has a receiving hole for receiving a lamp base, and a conductive plate connected to a power source is provided in the receiving hole. A plunger is slidably inserted into the guide stem, a compression spring is sandwiched between the plunger and the bottom plate, and the plunger is pressed against the guide stem to prevent it from being pulled out, and the bottom plate is inserted into the socket. A fluorescent lamp socket characterized in that the plunger is fixed to the bottom of the main body and is movable inside the socket main body.