JPH09161923A - Fluorescent lamp socket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a socket pressing an electric wire with constant pressing force regardless of whether a lamp is fitted or removed by providing an electric wire contact section and a buffer section bent downward into a ridge shape on a conductive piece made of an elastic raw material, and inserting the buffer section into a groove provided in the socket. SOLUTION: A receiving plate 40 receiving the end section of a lamp and provided with pin holes 42 penetrated by lamp pins is put from the back side of an opening 33 provided on the front face of a socket 10, and a conductive piece 20 made of an elastic raw material and having an electric wire contact section 22 at one end and a receiving plate pressing section 25 pressing the receiving plate 40 at the other end is provided in the socket 10. A buffer section 26 bent downward into a ridge shape is formed at the middle position of the pressing section 25 of the conductive piece 20, and the buffer section 26 is inserted into a groove 11 provided in the socket 10. The conductive piece 20 can be fixed in the socket 10. Even if the pressing section 25 is pressed by the receiving plate 40 when the lamp is fitted, the force is cut off by the buffer section 26 and is prevented from affecting the other electric wire contact side.

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 a socket) in which a pair of sockets are used facing each other with a fluorescent lamp interposed therebetween.
More particularly, it relates to an improved creation of the mounting means for the conductive pieces of such sockets.

[0002]

2. Description of the Related Art Conventionally, as a socket of this type, a receiving plate for receiving an end portion of a lamp and having a pin hole through which a lamp pin penetrates is applied from the back side of an opening provided in the front of the socket, and one end of the socket is connected with an electric wire. It is known to press the receiving plate with the other end of a conductive piece made of an elastic material which is a contact point (for example, Japanese Utility Model Publication No. 1-43831). Then, 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 them to make contact with the electric wire.

FIG. 8 is a view showing a main part of a conventional technique of this type of socket. Here, by inserting the electric wire L from the electric wire insertion hole 51, the conductive piece 60 is caused by the tip thereof.
The contact portion 61 at one end of the
1 and the inner wall of the socket 50. And
In this case, the electric wire L to be inserted with the contact portion 61 of the conductive piece 60
Since they are in contact with each other at an acute angle, the self-locking action occurs in which the end portion of the contact portion 61 bites into the electric wire in the pulling-out direction to prevent the pulling out even if the electric wire is allowed to be inserted.

[0004]

As described above, the socket of the prior art described above has a simple structure and produces a reliable self-locking action, which is a useful technique in this respect. However, in the above-mentioned conventional socket, the conductive piece 60 is placed midway on the rib 52 provided in the socket, one end of which serves as the contact portion 61 with the electric wire L, and the other end of which has the receiving plate 63 provided with the pin hole 64. Since the receiving plate pressing portion 62 of the lamp is used, the receiving plate 63 by the end portion of the lamp is attached when the lamp is mounted.
By pressing, the contact portion 61 with the electric wire L at the other end excessively presses the inner wall of the socket 50 like a seesaw with the place placed on the rib 52 as a fulcrum, resulting in the insertion of the electric wire L.・ There was a problem that it was difficult to pull out.

[0005]

The present invention was created in view of the problems of the prior art as described above, and prevents unnecessary pressing force at the contact portion of the electric wire, regardless of whether the lamp is attached or detached. An object of the present invention is to provide a socket that presses an electric wire with a constant pressing force.

That is, the socket according to the present invention receives the end portion of the lamp and the pin hole 4 through which the lamp pin should pass.
An opening 33 provided with a receiving plate 40 provided with 2 on the front surface of the socket
In the socket which is to be pressed from the back side of the base plate and which is to be pressed by the receiving plate pressing portion 25 at the other end of the conductive piece 20 made of an elastic material having one end as the electric wire contact portion 22,
The intermediate portion of the contact portion 22 of the electric wire of 0 and the receiving plate pressing portion 25 is formed as a buffer portion 26 bent downward in a mountain shape.
Is fitted into the groove 11 provided in the socket, and is used as a means for attaching the conductive piece 20 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 downward in a mountain shape into the groove 11 provided in the socket. It is fixed in the groove 11 by the force of pushing and expanding, and first has the effect of fixing the conductive piece 20 in the socket.

On the other hand, since the conductive piece 20 is divided into the front and the rear with the buffer portion 26 sandwiched therebetween, even if the receiving plate pressing portion 25 is pressed by the receiving plate 63 at the time of mounting the lamp, the force thereof is kept by the buffer portion 26. This is cut off, and an effect of preventing the ripple from spreading to the electric wire contact side of the other end is produced.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 and 7 are views showing the entire socket of the present invention. Reference numeral 10 in the drawing is a body of the socket, and a lid 30 is prepared for the body 10.

The lid 30 has an opening 33 on one side which exposes the receiving plate 40 by applying it 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 portion of a lamp (not shown). The receiving plate 40 has a pair of pin holes 42, 42 through which a lamp pin should pass, and a peripheral side thereof. A protrusion 41 is provided to prevent the lid body 30 from coming off when it is applied from the back side of the opening 33 of the lid body 30.

Reference numeral 20 in the drawing is a conductive piece. The conductive piece 20 has one end as a contact side with an electric wire described below and the other end as a receiving plate pressing portion 25 for pressing the receiving plate 40 toward the back side of the lid body 30. Part 25
By locating the lamp pin in the pin hole 42 of the receiving plate, the penetrating lamp pin comes into contact with the conductive piece.

The conductive piece 20 is made of a highly elastic band-shaped metal, and is bent downward in a mountain shape (here, V-shape) between the contact side of the electric wire and the middle portion of the receiving plate pressing portion 25. It is configured as a buffer unit 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, and the conductive piece 20 narrows the buffer portion 26 against the repulsive force to fit in this groove 11. By being inserted and fixed, it is fixed to the socket, and this fixed state is maintained by the force of the cushioning portion 26 to push and spread.

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

According to the above conductive piece 30, the wire insertion hole 31
The inserted electric wire L penetrates through the cutout portion of the pulling-up piece 23 and pushes the pulling-up piece by the tip thereof, and is sandwiched between the pulling-up piece and the electric wire contact portion 22, and in the pulling-out direction. On the other hand, the end of the pulling up piece bites in and the pulling out is blocked. Reference numeral 32 in the drawing 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 blocked by the buffer portion 26, which affects the pressing force of the pulling piece 23 at the other end against the wire contact portion 22. Since it 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 of the present invention.

FIG. 2 is a perspective view of the conductive piece.

FIG. 3 is a perspective view of the conductive piece observed from an angle different from that of FIG. 2;

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

FIG. 5 is a cross-sectional view of the main part of the same as above.

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 cross-sectional view of a prior art socket.

[Explanation of symbols]

 10 Main Body (of Socket) 11 Groove 20 Conductive Piece 21 Transverse Section 25 Receiving Plate Pressing Section 26 Buffer Section 23 Raising Piece 30 Lid 33 Opening 40 Receiving Plate 42 Pin Hole

Claims (2)

[Claims] 1. A receiving plate (4) for receiving an end of a lamp and having a pin hole (42) through which a lamp pin passes.
0) is applied from the back side of the opening (33) provided on the front surface of the socket, and the receiving plate pressing portion (25) at the other end of the conductive piece (20) made of an elastic material has one end as the electric wire contact portion (22). In the socket for pressing the plate, the contact portion (22) of the electric wire of the conductive piece (20) and the receiving plate pressing portion (2)
5) A buffer part (26) in which a midway portion is bent downward in a mountain shape.
And the buffer portion (26) is provided in the groove (1
A fluorescent lamp socket, characterized in that it is used as a means for attaching the conductive piece (20) to the socket by being inserted into 1). 2. A receiving plate (4) for receiving an end portion of the lamp and provided with a pin hole (42) through which the lamp pin passes.
0) is applied from the back side of the opening (33) provided on the front side of the socket, and the receiving plate is pressed by the receiving plate pressing portion (25) at the other end of the conductive piece (20) made of an elastic material, one end of which is the contact side with the electric wire. In the socket that should be pressed, the conductive piece has the following configuration (a), and the cushioning portion (26) of this conductive piece (20) is fitted into the groove (11) provided in the socket to make the conductive piece (20) A fluorescent lamp socket, characterized in that it is used as a mounting means for the socket. (A) One end is a cross section (21) that should cross the wire insertion path provided in the socket, and one end of this cross section is bent along the wire (L) to be inserted from the wire insertion path. As a result, the wire contact portion (22) is provided, and the crossing portion of the wire has a cutout width through which the wire can penetrate (23).
Cut out with the hinge part left, and set the raising direction of this raising piece as the insertion direction of the electric wire, and set the degree of raising so that the end of the raising piece can be pressed against the electric wire. Support plate pressing part (2
5) A buffer part (26) in which a midway portion is bent downward in a mountain shape.
And conductive pieces.