JPS64708Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a wedge attached to a light bulb body, particularly a small light bulb body.

Conventionally, the dimer wire exposed downward from the wedge of the bulb body is bent upward. The socket consists of a synthetic resin housing having a fitting hole, and a terminal installed in the fitting hole.
As shown in Fig. 1, the clamping piece b of the terminal a holds the wedge c in a clamped state, and the wedge wire d is pressed against the wall surface of the wedge c, so that the wedge wire d and the clamping piece b come into contact with each other and conduction is established. It was set up in a structure that

However, in the above-mentioned conventional device, when the light bulb body is small, the work of folding the composite wire back to the side of the wedge held by the clamping piece of the terminal requires precision and is time-consuming. As shown in the figure, when the bulb body is folded back to position d' and fitted into the socket as it is, there is a disadvantage that poor contact tends to occur, and there is a risk of the bulb being shot if used in this state.

The present invention was developed in consideration of the above-mentioned disadvantages, and includes a protrusion that abuts the center of the wedge in the diametrical direction of the center on both sides of the opposing inner surfaces of the long side of the fitting hole. At the same time, a tongue piece extending to the protrusion is provided on the side edge of the clamping piece that presses the wedge wire, and since the tongue piece comes into close contact with the center of the wedge in a biased state, the wedge wire can be placed in the proper position. When fitting not only a bulb body that has been folded back, but also a bulb body that has not folded the stem wire to the proper position into a socket, the protrusions serve as a guide to straighten the stem wire toward the terminal side and connect the stem wire to the terminal. The purpose of this invention is to provide a socket that provides reliable electrical continuity between the two.

Next, the present invention will be explained in detail based on an embodiment shown in FIGS. 2 to 7.

In the figure, reference numeral 1 denotes a socket, and the socket 1 consists of a housing 2 made of synthetic resin and a terminal 5 attached to a fitting hole 3 formed in the center of the housing 2. The fitting hole 3 has a substantially square shape, and a light bulb body 6 is provided at the center of each of the long side inner surfaces.
The clamping part 30 clamps the center part 70 of the wedge 7.
are placed facing each other. and the clamping part 3
A protrusion 31 that abuts the center portion 70 of the wedge 7 is integrally formed in the longitudinal direction of the clamping portion 30 at the center of the wedge 7. When the wedge 7 is fitted into the fitting hole 3, the protrusion 31 It is located in the diametrical direction of the center part 70 of the 7 and holds the center part 70 between them. 4
is a locking claw for attaching the housing 2 to a printed circuit board or the like, and is integrally formed with the housing 2.

As shown in FIG. 4, the terminal 5 has a left gripping piece 50 and a right gripping piece 53, and the left and right gripping pieces 50, 53 hold the side portion 71 of the wedge 7 in a gripping state. be. The right arm holding piece 53 is bent into a substantially dogleg shape, and a protrusion 54 provided at the apex is attached to the side portion 7.
1, the left arm holding piece 50 is bent into a substantially square shape, and presses against the central flat pressing surface 51.
is in biased contact with the composite wire 8 folded back on the wall surface of the side portion 71, and the composite wire 8 and the terminal 5 are electrically connected (if the composite wire is folded back at an appropriate position on the side portion of the wedge). Also left arm holding piece 50
A tongue piece 52 is integrally formed by extending the side edge of the pressing surface 51 laterally. It reaches the protrusion 31 and comes into close contact with the central portion 70 of the wedge 7 in a biased state. When fitting the wedge 7 in which the wedge wire 8 is not folded back to the proper position and is folded back toward the central portion 70 side into the fitting hole 3, the wedge wire 8' is not folded back to the protrusion as shown in FIG. 31 and the protrusion 31 acts as a guide, and the terminal 5
Corrected to the side. The corrected composite wire 8' then comes into contact with the tongue piece 52, so that the composite wire 8' and the terminal 5 are electrically connected. When the composite wire 8 is folded back in a direction other than the central portion 70 of the wedge 7, the central piece 55 of the terminal 5 acts as a guide and conducts.

Therefore, according to the present invention, the projection that abuts the center of the wedge acts as a guide to straighten the wedge wire folded back toward the center of the wedge toward the terminal, and the tongue piece provided on the holding piece of the terminal. Since the corrected aluminum wire makes contact with the terminal and ensures continuity between the aluminum wire and the terminal, precision is not required when folding the aluminum wire, and even when attaching a small light bulb, it is easy to attach the light bulb. It can be attached to a socket and has excellent practical effects, such as ensuring that the composite wire is electrically connected to the terminal within the socket.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing a conventional example, Fig. 2 is a top view showing an embodiment of the socket of the invention, Fig. 3 is a top view showing the housing of the socket of the invention, and Fig. 4 is a top view of the socket of the invention. 5 is a sectional view taken along line V-V in FIG. 2, FIG. 6 is a side view of the socket of the present invention, and FIG. 7 is an explanatory diagram of the socket of the present invention. It is. DESCRIPTION OF SYMBOLS 1... Socket, 2... Housing, 3... Fitting hole, 31... Protrusion, 5... Terminal, 50... Left arm holding piece, 52... Tongue piece, 53... Right arm holding piece, 6... …
Bulb body, 7...Wedge, 8, 8'...Dimension wire.

Claims (1)

[Scope of utility model registration request] A socket consisting of a housing having a fitting hole into which a wedge of a light bulb is fitted, and a terminal installed in the fitting hole to hold the wedge in a clamped state, and the clamping piece of the terminal is folded back to the wedge. In a device in which the wire is pressed against the wall surface of the wedge to establish electrical conduction between the wire and the terminal, a protrusion that contacts the center of the wedge in the diametrical direction of the center is placed on the opposite inner surface of the long side of the fitting hole. A socket characterized in that tongue pieces are integrally formed on the side edge of the clamping piece, the tongue pieces facing each other on both side surfaces, reaching the protrusion, and coming into close contact with the central part of the wedge in a biased state.