JPS6226947Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a lamp socket for a fluorescent lamp.

Conventionally, a pair of connection terminals, each pole of which is connected to a pin terminal protruding from the end of a straight tube fluorescent lamp, is housed in a socket body, a pair of cord insertion portions are formed in the socket body, and these cords are inserted. There is a lamp socket in which a cord inserted into the lamp socket is prevented from coming out by a self-locking piece that acts like a wedge and is connected to a connecting terminal.

Since it is necessary to insert two cords into one cord insertion part for sending wiring, two self-locking contact pieces are separated by a slit and bent independently at the tip of the connection terminal. There is an idea that was formed in this way. However, if no feed wiring is used, one cord will be inserted into one cord insertion portion, and since the cord swings so much, it will also move against the connection terminal, causing it to come loose or cause a connection failure. Also, even when inserting two cords into one cord insertion section for sending wiring, if you insert cords with different line thicknesses,
Since the positions of the individual cords are not determined, there is a problem in that one cord comes into contact with two self-locking contact pieces and prevents contact between the other cord and the self-locking contact piece.

This invention was developed in view of these points, and the object is to provide a lamp socket for a fluorescent lamp that can maintain a good connection state regardless of whether or not a feed wiring is implemented.

This invention includes a socket body that is open on one side and houses a pair of connection terminals that are connected to pin terminals at the end of a straight tube fluorescent lamp for each pole, and a cover that closes the open side of the socket body, At each end of the cord connection side of the connection terminal, two self-locking contact pieces that bend independently are formed separated by a slit, and the step-shaped separation part formed on the socket body and the A cord insertion portion is provided by forming a pair of individual cord holes that are separated from each other inside and outside and up and down by a step-shaped presser rib of the cover formed opposite to the separation portion, and the individual cord of the cord insertion portion is provided. The socket is characterized in that the connecting terminals are attached to the socket body with the self-locking contact pieces facing the respective holes. Therefore,
By attaching a cover to the socket main body, the cord insertion part forms a pair of individual cord holes separated from each other inside and out and above and below by the step-like separation part of the socket main body and the step-like separation part of the cover. It is easy to form individual cord holes, and each cord is inserted into each individual cord hole, so whether one or two cords are inserted into the cord insertion part, they can be separated by the slit. The self-locking contact pieces are designed to operate individually to securely hold each cord, ensuring that the cords do not fall out and maintaining a good electrical connection. be.

An embodiment of this invention will be explained based on the drawings.
1 is the socket body. Although not shown, a rotor 2 is attached to the socket body 1 for holding the end of a straight tube fluorescent lamp. The socket body 1 is open on one side, and is provided with a cover 3 that closes this open side.The socket body 1 has a screw fitting 4 for screwing the cover 3.
is inserted, and furthermore, two cord insertion portions 6 and a release groove 9 sandwiched between ribs 7 and 8 are formed with the support wall 5 as a boundary. Furthermore, the socket body 1 has grooves 11 for holding a pair of left and right connection terminals 10.
, ribs 12 and pillars 13 are formed. These connection terminals are made of a highly elastic brass plate, and two self-locking contact pieces 14 and 15 of different lengths are formed at the tips of the terminals, separated by a slit 16 and flexible independently. There is. However,
The socket main body 1 is formed with a step-shaped separation part 19 for supporting two cords 17 and 18 while separating them for each cord insertion part 6.

Next, step-shaped pressing ribs 20 and 21 are integrally formed on the cover 3 to press the cords 17 and 18 separated by the separation part 19. The cord insertion portion 6 is connected to the cords 17 and 18 by the presser ribs 20 and 21 and the separating portion 19.
A pair of individual cord holes 6a are formed independently to allow insertion of only one cord each.

In such a configuration, the left and right connection terminals 10
The longer self-locking contact piece 14 is joined to the plane of the separating part 19 and the side surface of the support wall 5, and the shorter self-locking contact piece 15 is joined to the side face of the separating part 19 and the bottom face of the cord insertion part 6. to be joined to. When viewed from the end of the socket body 1, the cord insertion portion 6 is divided into two parts by the separating portion 19 into an inner and outer portion and an upper and a lower portion, as shown in FIG.
7 and 18 are held with their movements regulated and prevented from coming off by self-locking contact pieces 14 and 15, respectively.
One cord 17 or 18 will not be joined to the two self-locking contact pieces 14, 15, so even if one cord 17 or 18 is inserted into one cord insertion part 6, the feed wiring Therefore, even if two cords 17, 18 are inserted, or even if the cords 17, 18 have different thicknesses, one self-locking contact piece 14 or 15 can be bent independently to form a single cord. Ensure that only 17 or 18 are retained. Therefore, the cords 17 and 18 do not fall off, and the electrical connection is good. The formation of the holding ribs 20 and 21 on the cover 3 further strengthens the prevention of the cords 17 and 18 from coming off.

In addition, when removing the cords 17 and 18, use the release groove 9.
This can be done by inserting a screwdriver or the like into the connecting terminal 10.

As mentioned above, this invention consists of a socket body that is open on one side and houses a pair of connection terminals that are connected to pin terminals at the end of a straight tube fluorescent lamp for each pole, and a cover that closes off the open side of the socket body. and
At each end of the cord connection side of the connection terminal, two self-locking contact pieces that bend independently are formed separated by a slit, and the step-shaped separation part formed on the socket body and the A cord insertion portion is provided by forming a pair of individual cord holes that are separated from each other inside and outside and up and down by a step-shaped presser rib of the cover formed opposite to the separation portion, and the individual cord of the cord insertion portion is provided. Since the connecting terminals are attached to the socket body with the self-locking contact pieces facing the respective holes, the cord insertion portion can be connected to the step-shaped separating portion of the socket body and the step of the cover by attaching the cover to the socket body. Since a pair of individual cord holes separated from each other inside and outside and above and below is formed by the shaped separation part, it is easy to form the individual cord hole, and the cord insertion part is formed by the pair of individual cord holes. Therefore, each cord is inserted into the individual cord hole, and whether one or two cords are inserted into the cord insertion part, the self-locking contact pieces separated by the slit are individually inserted. It operates to securely hold each cord, ensuring that the cords do not come off, and maintaining a good electrical connection.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
Figure 2 is a perspective view, Figure 2 is a plan view of the socket body, Figure 3 is an exploded perspective view, Figure 4 is a perspective view showing the inner surface of the cover, Figure 5 is a partially enlarged plan view of the socket body, FIG. 6 is an enlarged sectional view taken along line A--A in FIG. 5, showing the state in which the cord is held. 1...Socket body, 6...Cord insertion part, 6
a... Individual cord hole, 10... Connection terminal, 14,
15...Self-locking contact piece, 16...Slit, 1
7, 18... code, 19... separation section.

Claims (1)

[Scope of utility model registration request] A socket body with an open side housing a pair of connection terminals to be connected to pin terminals at the end of a straight tube fluorescent lamp for each pole is provided, and a cover that closes the open side of the socket body is provided. At each end of the cord connection side, two self-locking contact pieces that bend independently are formed by separating them with a slit, and are opposed to the stepped separation part formed in the socket body and the separation part. A cord insertion portion is provided by forming a pair of individual cord holes which are separated from each other inside and outside and up and down by a stepped presser rib of the cover formed by A lamp socket for a fluorescent lamp, characterized in that the connection terminals are attached to the socket body with locking contact pieces facing each other.