JP3095347B2 - Fluorescent lamp socket - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluorescent lamp socket (hereinafter abbreviated as "socket") using a pair of sockets facing each other with a fluorescent lamp interposed therebetween.
More specifically, the present invention relates to an improved creation of means for attaching a conductive piece of such a socket.

[0002]

2. Description of the Related Art Heretofore, as a socket of this type, a receiving plate for receiving an end of a lamp and having a pin hole through which a lamp pin has to be passed is applied from the back side of an opening provided in the front of the socket, and one end of the socket is connected to an electric wire. A device in which this receiving plate is pressed by the other end of a conductive piece made of an elastic material as a contact point is known (for example, Japanese Utility Model Publication No. 1-43831). In this type of socket, one end of the conductive piece is brought into contact with the inner wall of the socket, and an electric wire is inserted between the ends to make contact with the electric wire.

FIG. 8 is a diagram showing a main part of this type of conventional socket, in which an electric wire L is inserted through an electric wire insertion hole 51 so that a conductive piece 60
The contact portion 61 at one end of the wire is pushed out, and the electric wire L is connected to the contact portion 6.
1 and the inner wall of the socket 50. And
In this case, the contact portion 61 of the conductive piece 60 and the inserted wire L
Because of the acute contact with the wire, the insertion of the electric wire is permitted, but the self-locking action occurs in which the end of the contact portion 61 cuts into the electric wire in the pulling direction to prevent the wire from being pulled out.

[0004]

As described above, the above-mentioned conventional socket has a simple structure and ensures a self-locking effect, and is a useful technique in this respect. However, in the above-mentioned prior art socket, the conductive piece 60 is placed halfway on the rib 52 provided in the socket, and the receiving plate 63 having one end as the contact portion 61 with the electric wire L and the other end with the pin hole 64 is provided. The receiving plate pressing portion 62, the receiving plate 63 by the end of the lamp when the lamp is mounted.
Causes a phenomenon in which the contact portion 61 with the other end of the electric wire L excessively presses the inner wall of the socket 50 like a seesaw with the portion placed on the rib 52 as a fulcrum, and as a result, the insertion of the electric wire L -There was a problem that extraction was difficult.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and prevents unnecessary pressing force of a contact portion of an electric wire, regardless of whether a lamp is attached or detached. It is an object of the present invention to provide a socket for pressing an electric wire with a constant pressing force.

That is, according to the socket of the present invention, the pin hole 4 through which the lamp pin is to be penetrated while receiving the end of the lamp is provided.
The opening 33 provided in the front of the socket with the receiving plate 40 provided with
Of the conductive piece 20 made of an elastic material, one end of which is an electric wire contact portion 22 and which is to be pressed by the receiving plate pressing portion 25 at the other end of the conductive plate.
In the middle of the contact portion 22 of the wire 0 and the receiving plate pressing portion 25, a buffer portion 26 is bent downward in a mountain shape.
Is inserted into a groove 11 provided in the socket, whereby the conductive piece 20 is attached to the socket.

Therefore, according to the present invention, the conductive piece 20 is attached to the socket by fitting the buffer portion 26 bent in a downward mountain shape into the groove 11 provided in the socket. It is first fixed in the groove 11 by the force of the pushing and expanding, and firstly acts to fix the conductive piece 20 in the socket.

On the other hand, since the front and rear portions of the conductive piece 20 are divided with the buffer portion 26 interposed therebetween, even if the receiving plate pressing portion 25 is pressed by the receiving plate 63 when the lamp is mounted, the force is still applied by the buffer portion 26. An effect is obtained in which the connection is cut off and is prevented from spreading to the wire contact side at the other end.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 and 7 are views showing the whole socket of the present invention. In the figure, reference numeral 10 denotes a socket main body, and a lid 30 is prepared for the main body 10.

The lid 30 has an opening 33 on one side to expose the receiving plate 40 by applying the receiving plate 40 from the back side.
It has a configuration in which an electric wire insertion hole 31 (here, four holes are provided) for inserting the electric wire L is provided on the other side.
It is fixed to the main body 10 by 4 and 44.

The receiving plate 40 has a function of receiving an end of a lamp (not shown). The receiving plate 40 is provided with a pair of pin holes 42, 42 through which lamp pins are to be penetrated in the center, and on the peripheral side. An overhang 41 is provided to prevent the lid 30 from coming off when it is applied from the back side of the opening 33.

In the figure, reference numeral 20 denotes a conductive piece. One end of the conductive piece 20 serves as a contact side with an electric wire described below, and the other end serves as a receiving plate pressing portion 25 that presses the receiving plate 40 toward the back side of the lid 30. Part 25
By positioning the pin in the pin hole 42 of the receiving plate, the penetrated lamp pin comes into contact with the conductive piece.

The conductive piece 20 is made of an elastic band-shaped metal, and bends the contact side of the electric wire and an intermediate portion of the receiving plate pressing portion 25 in a downward mountain shape (V shape here). This is configured as a buffering section 26.

On the other hand, a groove 11 corresponding to the buffer portion 26 of the above-mentioned conductive piece is provided in the main body 10 of the socket. By being inserted and fixed, the socket is fixed to the socket, and the fixed state is maintained by the force of the buffer section 26 which is to be expanded.

In this embodiment, the contact side of the conductive piece 20 with the electric wire is a cross section 21 to cross the electric wire insertion path immediately below the electric wire insertion hole 31 of the lid 30, and one end of this cross section is formed. An electric wire contact portion 22 is formed by bending along the electric wire L to be inserted from the electric wire insertion path, and a raising piece 23 having a cutout width through which the electric wire can be penetrated is provided at a transverse portion of the electric wire (in this embodiment, provided at two locations). ) Is cut out while leaving the hinge portion, the raising direction of the raising piece 23 is set as the insertion direction of the electric wire, and the degree of raising is set so that the end of the raising piece can be pressed against the electric wire (FIG. 2 and FIG. 3).

According to the conductive piece 30 described above, the wire insertion hole 31
The inserted wire L penetrates the cutout portion of the raising piece 23, pushes up the raising piece by its tip, and is sandwiched between the raising piece and the wire contact portion 22. On the other hand, the end of the elevating piece bites and the pulling out is prevented. In the drawing, reference numeral 32 denotes a release hole for inserting a release tool for forcibly pushing down the raising piece 23 of the conductive piece when pulling out the electric wire.

[0017]

According to the present invention having the above configuration,
Even if the receiving plate pressing portion 25 is pressed by the receiving plate 63 at the time of mounting the lamp, the force is interrupted by the buffer portion 26 and the pressing force of the raising member 23 at the other end to the wire contact portion 22 is affected. Since this is prevented from being applied, a socket is realized in which the electric wire is pressed with a constant pressing force regardless of whether the lamp is attached or detached.

[Brief description of the drawings]

FIG. 1 is a sectional view of a socket according to the present invention.

FIG. 2 is a perspective view of a conductive piece according to the first embodiment;

FIG. 3 is a perspective view of the same, as viewed from a different angle from FIG. 2;

FIG. 4 is a sectional view of a main part of the socket of the present invention.

FIG. 5 is a cross-sectional view of a main part in the same use state.

FIG. 6 is a front view of the socket of the present invention.

FIG. 7 is an exploded perspective view of the socket of the present invention.

FIG. 8 is a sectional view of a conventional socket.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 (Socket) main body 11 Groove 20 Conductive piece 21 Crossing part 25 Receiving plate pressing part 26 Buffer part 23 Raised piece 30 Lid 33 Opening 40 Receiving plate 42 Pin hole

Claims (2)

(57) [Claims] 1. A cover for a body (10) of a socket.
(30) is prepared, and a receiving plate (40) provided with a pin hole (42) through which a lamp pin penetrates is received from the rear side of the opening (33) provided in the lid (30) , while receiving the end of the lamp. A receiving plate pressing portion (25) at the other end of a conductive piece (20) made of an elastic material having one end as a wire contact portion (22)
In the socket to which the receiving plate is to be pressed, the contact portion (22) of the conductive piece (20) with the electric wire and the receiving plate pressing portion (2)
5) A buffer part (26) with a halfway point bent downward in a mountain shape
The buffer portion (26) is narrowed against the repulsive force and inserted into a groove (11) provided in the body (10 ) of the socket to thereby provide the buffer portion (26). By the force that tries to spread
A fluorescent lamp socket fixed to the inside of the groove to attach the conductive piece (20) to the socket. 2. A lid for the body (10) of the socket.
(30) is prepared, and a receiving plate (40) provided with a pin hole (42) through which a lamp pin penetrates is received from the rear side of the opening (33) provided in the lid (30) , while receiving the end of the lamp. A receiving plate pressing portion (25) at the other end of a conductive piece (20) made of an elastic material having one end as a wire contact portion (22)
In the socket for pressing the receiving plate, the conductive piece has the following configuration (a) and the conductive piece (2)
0) The socket (26) is squeezed against the repulsive force and socket
Is inserted into the groove (11) provided in the main body (10) of the main body (10) , so that the groove (26) is pressed by the force of the buffer portion (26) to expand.
A fluorescent lamp socket fixed to the inside of the lamp to provide means for attaching the conductive piece (20) to the socket.
(A) One end is a cross section (21) to be traversed by the wire insertion path provided in the socket, and one end of this cross section is bent along the electric wire (L) to be inserted from the wire insertion path. In this manner, the electric wire contact portion (22) is formed, and a protruding piece (23) having a cutout width through which the electric wire can penetrate is cut out at the crossing portion of the electric wire except for the hinge portion, and the direction in which the protruding piece is protruded is set as the insertion direction of the electric wire. At the same time, the degree of raising is set so that the end of the raising piece can be pressed against the electric wire, and furthermore, the buffer part ( 26) The conductive piece.