JPH0740301Y2 - Wiring equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a wiring device such as an outlet or a switch equipped with a wire connecting device of a so-called quick-connecting structure that can be connected simply by inserting an electric wire.

[Prior Art] Some conventional wiring devices are provided with an electric wire connecting device having a so-called quick-connect structure that can be connected simply by inserting an electric wire. This wire connecting device is composed of a terminal frame and a substantially C-shaped locking spring, and an electric wire inserted between the terminal frame and the locking spring is pressed against the terminal frame by the spring force of the locking spring. The locking piece formed on the locking spring is locked to the electric wire to prevent the electric wire from being pulled out. Further, in this type of electric wire connecting device, a release button is provided so that the electric wire can be removed, and the locking button of the locking spring is pressed by the release button so as to be separated from the terminal frame,
The locked state of the electric wire by the locking spring is released.

[Problems to be Solved by the Invention] However, in such a wire connection device having a quick-connecting structure, it is very troublesome to assemble the release button into the housing of the wiring device including the body and the cover.

The present invention has been made in view of the above points, and an object thereof is to provide a wiring device in which a wire connection device having a quick-connect structure can be easily incorporated.

[Means for Solving the Problem] In order to achieve the above object, the present invention forms a release button together with a body or a cover, and houses the entire release button in a housing.

Here, the terminal frame and the locking spring may be integrally formed so that the wire connection device having the quick-connecting structure can be more easily assembled.

In order to facilitate the removal of the wire in such a quick-connecting wire connection device, the release button at the tip of the locking piece of the locking spring that prevents the wire from being pulled out should have low friction. It is advisable to form a release pressing portion that comes into contact with.

[Operation] According to the present invention, by integrally forming the release button on the body or the cover as described above, the troublesome assembling work of the release button can be eliminated and the quick-connecting type wire connecting device can be easily incorporated. It was done.

In this wiring device, if the terminal frame and the locking spring are integrally formed, they can be installed at the same time without requiring positioning of the terminal frame and the locking spring, and further, the quick-connecting structure wire connection device can be installed. It will be easy.

If a release pressing portion is formed at the tip of the locking piece of the locking spring that prevents the electric wire from coming into contact with the release button with low friction, the locking piece will not catch on the release button and the release button will slip. The lock spring can be pressed smoothly with the release button, and the electric wire can be easily removed.

[Embodiment 1] FIGS. 1 and 2 show an embodiment of the present invention. In this embodiment, an outlet is taken as an example of a wiring device, and a housing 1 of this outlet has a box-shaped body 2 having an upper surface opening as shown in FIG. 1, and a cover attached to the opening surface of the body 2. 3 and 3. The body 2 and the cover 3 are made of synthetic resin or the like.

The lower surface of the body 2 is formed with an electric wire insertion hole 2a for inserting an electric wire such as a power supply wire and a release hole 2b for inserting a tool such as a screwdriver when the electric wire is removed. A projecting protrusion 2c is provided.

A plug blade insertion opening 3a for inserting a plug blade of a plug (not shown) is formed on the upper surface of the cover 3, and a fitting hole 3c is provided corresponding to the fitting projection 2b of the body 2 from the lower surface of the outer peripheral edge. The fixing piece 3b is vertically provided downward, and the fitting hole 3c of the cover 3 and the fitting protrusion 2c of the body 2 are fitted to each other so that the cover 3 is attached to the body 2.

Inside the body 2, a wire connection device 4 having a quick-connect structure and a blade receiving spring 5 for receiving a plug blade of a plug (not shown) are housed.

The electric wire connecting device 4 includes a terminal frame 6 formed in a U-shape that opens downward, and a substantially C-shaped locking tab 7, and the terminal frame 6 and the locking spring through the electric wire insertion hole 2 a of the body 2. The wire inserted between the lock spring 7 and the terminal frame 6 is pressed by the spring force of the lock spring 7, and the locking piece 7a formed on the lock spring 7 is locked to the wire to prevent the wire from coming off. Wire to the wire insertion hole
The connection can be made just by inserting it in 2a.
Here, the locking spring 7 is arranged in the body 2 by inserting the lower end into a recess formed in the body 2. The terminal frame 6 of the wire connecting device 4 is formed integrally with the blade receiving spring 5.

By the way, the electric wire connection device 4 of the present embodiment is provided with a release button 8, and the release button 8 is integrally formed by hanging from the inner bottom surface of the cover 3. The release button 8 has a thin upper portion connected to the cover 3 in the elastic direction of the locking spring 7, and allows a tool 10 (see FIG. 5) such as a driver to release the release hole 2b.
When it is inserted between the release button 8 and the inner side surface of the body 2 through the through button, the release button 8 is bent with a light force toward the locking spring 7 side as shown by an arrow in FIG.

In this wiring device, when the release button 8 is bent toward the locking spring 7 side with the tool 10 such as a driver as described above, the release button 8 separates the locking piece 7a of the locking spring 7 from the terminal frame 6. Then, the locked state of the electric wire by the locking spring 7 is released, and the electric wire is released.

In the present embodiment, the blade receiving spring 5 integrally formed with the terminal frame 6 is housed in the body 2, and the locking spring 7 is housed therein.
In this state, the cover 3 is attached to the body 2. At this time, the release button 8 is arranged at a predetermined position in the housing 1 at the same time when the cover 3 is attached to the body 2, and the troublesome assembling work of the release button 8 can be eliminated. The electric wire connection device 4 can be easily incorporated. Moreover, this ease of installation leads to a reduction in the assembly time of the wiring equipment.

[Embodiment 2] Another embodiment of the present invention is shown in FIGS. In the first embodiment described above, the terminal frame 6 and the blade receiving spring 5 were integrally formed, but in the present embodiment, the terminal frame 6 integrated with the blade receiving spring 5 is provided with the locking spring 7. Further, it is integrally formed. As in the first embodiment, two terminal frames 6 and two locking springs 7 are provided for each pole of the two-wire type electric wire to enable feed wiring.

FIG. 4 shows the blade receiving spring 5, the two sets of the terminal frame 6 and the locking spring 7.
The development view when and are formed integrally is shown. In FIG. 4, a rectangular portion 9a located at the center of the integral member 9
Is a blade receiving spring 5, an H-shaped portion 9b whose lower end is connected to the central portion of the portion 9a is a terminal frame 6, and a thin rectangular portion 9c is a locking spring which is connected to both sides of the portion 9b at the central portion. It is the part that becomes 7. As shown in FIG. 5, the two terminal frames 6 have a shape in which they are connected by a bridging piece 6a at a corner portion opposite to the blade receiving spring 5. Further, the portions 9a and 9b are formed by bending the portions shown by broken lines in FIG. 4 to form the blade receiving spring 5 and the terminal frame 6 shown in FIG. And the site 9c is replaced by the site 9b
At the connecting part with, bend so as to overlap with the inner surface of the portion of the terminal frame 6 of the terminal frame 6 that becomes the vertical piece 6b on the blade receiving spring 5 side, and once bend in a C shape, then the upper end portion Is folded back to the base end side in a direction in which it overlaps to form a pressing piece 7b, and a locking piece 7a for locking the electric wire is formed with the lower end portion thereof directed obliquely upward.

The plate material integrally forming the blade receiving spring 5, the terminal frame 6 and the locking spring 7 is made of a material having conductivity and spring property, for example, a copper alloy spring material. Here, when the terminal frame 6 and the locking spring 7 are integrally formed in this way, the terminal frame 6
And the lock spring 7 contact each other on both sides of the electric wire, and the electric wire connecting device 4
The current capacity of can be increased. It may be formed of a plywood of a copper plate and a spring material such as stainless steel. In this case, when the current capacity is increased as described above, the electric wire contact surface between the locking spring 7 and the terminal frame 6 is a copper plate. The terminal frame 6 and the locking spring 7 may be integrally formed so as to be on the side.

By the way, from the inside of the tip of the locking piece 7a of each locking spring 7 of this embodiment, as shown in FIGS. 5 and 6, a vertical piece on the side opposite to the blade receiving spring 5 of the terminal frame 6 is provided. An L-shaped pressing portion for releasing 7c protruding toward the release button 8 side from 6b and having a tip bent downward
When the electric wire is removed by the tool 10, the releasing pressing portion 7c comes into contact with the releasing button 8 with a small frictional force. In other words, the tip of the conventional locking piece 7a is the release button 8
There is a case where the release button 8 slips badly due to being locked by and the lock spring 7 cannot be smoothly pressed by the release button 8. Therefore, in the present embodiment, the release pressing portion 7c is formed on the locking spring 7 so that the locking piece 7a does not get caught on the release button 8 so that the release button 8 slides smoothly and the wire removal operation is smooth. It is something that can be done.

By the way, in the above description, the case where the wiring device is an outlet has been described, but in the case of a switch, for example, a contact spring and a locking spring are integrally formed, or a constituent member of the terminal block and the terminal frame. The present invention can be applied to other wiring appliances by integrally forming

[Advantage of the Invention] As described above, in the present invention, since the release button is integrally formed with the body or the cover, the troublesome assembling work of the release button can be eliminated, and the quick-connecting type wire connection device can be incorporated. It will be easy. In addition, since the entire release button is housed in the housing, it is possible to prevent the release button from easily operating even if force is applied to the housing carelessly, and it is possible to reliably prevent the electric wire from coming off due to a malfunction of the release button. Is what you can do.

Here, if the terminal frame and the lock spring are integrally formed in this wiring device, they can be incorporated at the same time without requiring positioning of the terminal frame and the lock spring, and further, the wire connection device of the quick-connect structure. Easy to install.

If a release pressing portion is formed at the tip of the locking piece of the locking spring that prevents the electric wire from coming into contact with the release button with low friction, the locking piece will not catch on the release button and the release button will slip. The lock spring can be pressed smoothly with the release button, and the electric wire can be easily removed.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of an embodiment of the present invention, FIG. 2 is a perspective view of an essential part of the same, FIG. 3 is a partially cutaway sectional view of another embodiment, and FIG. The figure is a development view of the above-mentioned integrated member,
FIG. 5 is a perspective view of an essential part of the above, and FIG. 6 is an enlarged perspective view of the essential part. 1 is a housing, 2 is a body, 3 is a cover, 4 is an electric wire connecting device, 6 is a terminal frame, 7 is a locking spring, 7a is a locking piece, 7c is a release pressing portion, 8 is a release button, and 9 is an integral body. It is a member.

Claims (3)

[Scope of utility model registration request] 1. An electric wire inserted between a terminal frame and a locking spring is pressed against the terminal frame by the spring force of the locking spring, and a locking piece formed on the locking spring is locked to the electric wire. Wiring device with a wire connecting device equipped with a release button that locks the locking wire of the locking spring by pushing it away from the terminal frame to release the wire. In the wiring device, the release button is integrally molded with a body or a cover and the release button is entirely housed in a housing. 2. The wiring device according to claim 1, wherein the terminal frame and the locking spring are integrally formed. 3. The wiring device according to claim 1, wherein a releasing pressing portion is formed at the tip of the locking piece of the locking spring for preventing the electric wire from coming off, and the releasing button comes into contact with the releasing button in a state where the friction is small.