JPH0129734Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a self-locking terminal device that locks and connects an inserted electric wire with a locking piece of an elastic locking spring.

[Prior art]

FIG. 1 is a sectional view showing a conventional self-locking terminal device disclosed in Japanese Utility Model Publication No. 50-41002. A locking spring 6 is fixed to the terminal plate 4 and locks and connects the electric wire 5 between the provided L-shaped terminal plate 4 and the rising portion of the terminal plate 4.
Then, when the lock spring 6 is pressed with a tool such as a screwdriver 7 inserted through the release hole 3 to release the lock, the lock spring 6 comes into contact and prevents excessive deformation of the lock spring 6. The terminal plate 4 is provided with a stopper 8 which is cut and raised integrally with the terminal plate 4.

However, the terminal device as described above requires two parts, the terminal plate 4 and the locking spring 6, and has a large number of parts, and even if it is attempted to integrate the locking spring 6 and the terminal plate 4, it is difficult to form the stopper 8. Terminal board 4 and locking spring 6
The disadvantage was that the shape was complicated.

[Summary of the idea]

The object of this invention is to improve the above-mentioned conventional drawbacks and to provide a self-locking terminal device with a small number of parts and a simple structure.

[Example of idea]

2 and 3 show a terminal device for a fluorescent lamp socket which is an embodiment of this invention. 1 is a bottomed box-shaped main body, 11 is a terminal chamber provided in this main body 1, 2 is an electric wire insertion hole formed at the bottom of the terminal chamber 11, and 3 is a release hole arranged in parallel with this electric wire insertion hole 2. ,
Reference numeral 14 denotes a protruding strip formed protruding from the side wall of the terminal chamber 11, and the end surface on the wire insertion hole 2 side serves as a stopper wall 15. Reference numeral 6 designates a locking spring that forms a contact piece (not shown) for a fluorescent lamp socket at one end and is housed in the terminal chamber 11. Reference numeral 17 designates a locking piece formed by bending the other end of the locking spring 6. . The tip of this lock piece 17 faces the side wall of the terminal chamber 11 on the wire insertion hole 2 side. Reference numeral 18 denotes a stopper portion extending to one side in the direction of the side wall on which the protruding strip 14 is formed at the tip of the lock piece 17, and is housed in the terminal chamber 11 between the stopper wall 15 and the wire insertion hole 2. Note that the electric wire 5 and driver 7 are the same as those in the conventional terminal device described above.

In the terminal device configured as above,
The electric wire 5 inserted from the electric wire insertion hole 2 is connected to the locking piece 17
The electric wire 5 can be removed by inserting a release tool such as a driver 7 through the release hole 3 and pressing the lock piece 17 to elastically deform it inward. In this case, the stopper part 18 is
The locking spring 6 comes into contact with the stopper wall 15 to restrict further deformation and prevent plastic deformation of the locking spring 6. The stopper portion 18 only needs to be extended from one side of the tip of the locking piece 17, and the protruding strip 14 acting as the stopper wall 15 may also be formed to protrude into the terminal chamber 11 of the main body 1, resulting in a terminal device with a very simple structure. Become. Further, since the locking piece 17 is configured to straddle the protruding strip 14, there is no problem in mounting the locking spring 6 into the terminal chamber 11, and the work can be carried out in the same manner as in the conventional case.

[Effect of idea]

Since this invention is constructed as described above, it has the effect of being able to provide a stopper that prevents plastic deformation of the locking spring with a very simple structure.

[Brief explanation of drawings]

Fig. 1 is an end view showing a conventional self-locking terminal device, Figs. 2 and 3 show an embodiment of this invention, Fig. 2 is a sectional view, and Fig. 3 is a perspective view of the main parts. be. In the figure, 1 is the main body, 2 is the wire insertion hole, 3 is the release hole, 6 is the locking spring, 14 is the protrusion, 17 is the locking piece,
18 is a stopper portion. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] The main body has a wire insertion hole and a release hole formed therein, and a locking spring installed in the main body.The main body has a protrusion extending along the wire insertion direction on the inner wall surface, and a locking spring. The locking piece of the spring is made to straddle the above-mentioned protruding line, and a stopper part is provided at the tip of the locking piece beyond the protruding line to protrude toward the wall surface of the main body on which the protruding line is formed, so that the locking piece moves in the releasing direction. A self-locking terminal device characterized in that a stopper portion comes into contact with a protrusion when deformed by a predetermined amount or more.