JPH044375Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to an earth terminal device used for earth wiring.

[Background technology]

Conventional earth terminal devices generally have a terminal board housed in a body made up of a plurality of members put together, and a preceding wiring is connected to the terminal board by a winding method. As a result, there were problems such as the time it took to assemble the body and the time it took to connect the preceding wiring. When the preceding wiring is a thick single wire with a diameter of 2.6 mm (φ2.6), it is difficult to connect using the winding method, and as a result, the time required to connect the wire is particularly long. Moreover, conventional earth terminal devices are often installed independently, and there is a problem in that it is difficult to install them together with other wiring devices.

Therefore, the following earth terminal equipment was developed. That is, it includes a body, a terminal plate installed on the body, a lock spring, and a release button. The body is a one-piece body having means for attaching it to the mounting frame on both sides, and
It has a recess. The terminal board has a connection means for connecting a ground wire of an electrical appliance or the like. The lock spring connects the preceding wiring to the terminal board when pressed, and the release button releases the connection of the preceding wiring by the lock spring. The terminal board is housed in the recess of the body together with the lock spring and the release button so that the connection means of the terminal board is exposed from the recess.

Since this earth terminal device has an integral body, there is no need to assemble the body, and therefore the device can be assembled in a short time. Furthermore, since the preceding wiring is connected to the terminal board by pressing using the lock spring, the time required to connect the preceding wiring can be shortened. Moreover,
Since it is provided with a means for attaching to the mounting frame, it can be easily installed alongside other wiring devices using the mounting frame.

In this earth terminal device, it is desired that the terminal plate can be fixed easily, quickly, and reliably in the recess of the body.

[Purpose of invention]

This invention was made in view of the above circumstances, and the object thereof is to provide an earth terminal device in which the terminal plate can be fixed easily, quickly, and reliably in the recess of the body.

[Disclosure of invention]

In order to achieve the above-mentioned objects, this invention includes a one-piece body having a recess, a terminal board having a connection means, a locking spring that connects the conductor to the terminal board by pressing, and a locking spring that connects the conductor to the terminal board. The terminal board, the lock spring, and the release button are each provided with a release button for releasing the connection, and the terminal board, the lock spring, and the release button are housed in the recess so that the connection means is exposed from the recess, and mounting means for the mounting frame are provided on both sides of the body. A ground terminal device in which a recess is provided on the side surface of the recess, and the side surface of the terminal board is made up of an inclined piece made by cutting and raising a part of the terminal board, and the side surface of the terminal board is made of an inclined piece that is perpendicular to the side surface. The gist of the present invention is an earth terminal device characterized in that a convex portion that can be elastically deformed in a direction is provided, and the concave portion and the convex portion constitute fitting and fixing means.

This idea will be explained in detail below.

FIG. 1 shows one embodiment of the earth terminal device according to this invention. As shown in the figure, this earth terminal device consists of a body 1, a terminal board (full tech) 2, a lock spring 3, a release button 4, and a screw 5.
and a pressing plate 6, respectively. The body 1 is a one-piece body, and includes a recess (hollowed part, undercut) 1a that opens on the upper surface, and two claws (protrusions) 1b and one recess 1c on both sides. There is. The claw 1b and the recess 1c serve as means for attaching to the mounting frame. A recess 7 is provided on both sides of the inner wall surface of the recess 1a. The bottom of the body 1 is provided with a hole for inserting a conducting wire and a removal hole (not shown) used for removing the conducting wire connected to the terminal plate 2. The body 1 is preferably made of thermoplastic resin, but is not limited thereto. The terminal plate 2 includes an upper portion 2a having a substantially C-shaped side surface and a lower portion 2b projecting downward from the lower end of the upper portion 2a. upper part 2
A screw hole 9 is provided in the ceiling part 8 of a, and the upper part 2
On both sides of a, there is an inclined piece made by cutting out a part of the terminal board in a U-shape and expanding the upper end side outward, and is elastically deformable in a direction perpendicular to the side surface of the terminal board. A convex portion (fixing protrusion) 10 is provided. The convex portion 10 is fitted into the concave portion 7 of the body, and the convex portion 10 and the concave portion 7 constitute fitting and fixing means. lower part 2
b has foot portions 11 on both sides of the lower end. The lock spring 3 is
The upper part 3a is almost S-shaped, and the lower part 3b is almost V-shaped.
It is shaped like a letter. The release button 4 is provided with a pressing portion 4a made of a flange in the middle portion. screw 5
consists of two members: a knob 5a and a shaft (core rod) 5b. The shaft 5b is threaded at its lower part, and its base is press-fitted into a recess provided on the back surface of the knob 5a and fixed to the knob 5a. The holding plate 6 is provided with a hole for screw insertion, and the shaft 5
This hole is inserted into the narrow diameter part provided in b to prevent it from coming off the screw 5. screw 5
After the shaft 5b is passed through the screw hole 9, a large diameter portion is provided at the tip of the shaft 5b to prevent it from coming off.
It is prevented from coming off from the terminal plate 2. The screw hole 9, the screw 5, and the holding plate 6 of the terminal board constitute a connection means to which a ground wire from an electric device or the like is connected (user connection). After the screws 5 are prevented from coming off as described above, the terminal board 2 is fitted (press-fitted) into the recess 1a so that the connection means is exposed from the opening of the recess 1a. ,
The terminal plate 2 will not come off from the recess 1a. At this time, the protrusion 10 of the terminal board is fitted into the recess 7 of the recess 1a. The lock spring 3 has both ends connected to the foot portion 1 of the terminal board 2.
The release button 4 is housed in the recess 1a together with the terminal board 2 with the terminal board 2 facing toward the direction 1. It is housed within 1a.

This earth terminal device has an integral body (one piece), so there is no need to assemble the body, and therefore the device can be assembled in a short time.
In addition, the body structure has become simpler (compact and streamlined structure), making manufacturing easier and lowering manufacturing costs.

Moreover, with the above-mentioned fitting and fixing means,
Since the terminal plate is fixed in the recess of the body, the terminal plate can be fixed easily, quickly, and reliably.

The preceding wiring is connected as follows. Insert the conductor through the conductor insertion hole provided at the bottom of the body 1, and then insert the lock spring 3 and the foot 1 of the terminal board 2.
Insert between 1. Then, the leading end of the conductive wire is pressed against the terminal board 2 by the lock spring 3, and the conductive wire is connected to the terminal board 2. Therefore, the preliminary wiring connection can be easily and quickly completed, and the construction time can be shortened. In this state, even if the lead wire is pulled, it will not come off because the tip of the lower part 3b of the lock spring is applied to the lead wire from diagonally below. Therefore, when removing the conductor, push the release button 4 by inserting a screwdriver into the removal hole provided at the bottom of the body 1, and push the tip of the lower part 3b of the lock spring with the pressing portion 4a. After doing this, you can remove it by pulling on the wire.

When connecting the ground wire of an electrical appliance or the like to the terminal board 2, the tip of the ground wire is sandwiched between the terminal board 2 and the holding plate 6, and the screw 5 is tightened.

This earth terminal equipment, for example,
It can be installed on a wall or the like using the mounting frame shown in the figure. This mounting frame is made of plastic or the like, and as shown in the figure, a plate screw hole 12, a box screw hole 13, and a scissor fitting mounting hole 14 are provided at the front and rear ends. Three sets of two holes 15 are provided on one side of the mounting frame, and a horizontally long plate 16 that projects downward is provided on the opposite side. Three openings 17 are arranged in parallel on this plate 16, and a convex protruding piece 18 is provided at the lower edge of each opening 17.
is provided. After inserting the two claws 1b on one side of the earth terminal device (see Figure 1) into one set of holes 15, insert the two claws 1b on the opposite side into the protruding piece 1.
The earth terminal device is inserted into the opening 17 so as to be placed on both shoulders 18a of the frame 8, and the earth terminal device is attached to the mounting frame so that the upper surface thereof protrudes from the opening 19 of the frame itself. In this way, the earth terminal device can be easily attached to the mounting frame. Here, the earth terminal fixture consists of one set of holes 15
and one protruding piece 18 is used (it is a one-piece module). Therefore,
Using the remaining set of holes 15 and the protruding piece 18,
Other wiring devices with claws on both sides can be attached to the mounting frame, and in this way, it can be easily installed alongside other wiring devices. After this, a mounting frame is attached to the wiring box embedded in the wall or the like using the screw holes 13, a plate is attached to the mounting frame using the screw holes 12, and the earth terminal device is attached to the wall or the like. When attaching the earth terminal device to a thin wall, it is preferable to use the mounting hole 14 and attach the mounting frame to an opening provided in the thin wall using scissors. In this way, the earth terminal device according to this invention can be easily attached to a wall or the like using the mounting frame.

Instead of the mounting frame shown in Figure 2, this earth terminal device can also be installed on a wall, etc. using a mounting frame made of metal etc. that has fixed claws and movable claws on both sides of the opening. . In this case, the earth terminal device is attached to the mounting frame by inserting the fixed claw into the recess 1c on one side (see FIG. 1) and then pushing the movable claw into the recess 1c on the opposite side.

Note that in the above embodiment, the protrusion of the fitting and fixing means is provided on the terminal board, and the recess is provided on the body; Good too. Although the screw is made up of two members, the shaft and the knob, they may be made into one piece. Further, it is not necessarily necessary to prevent the presser plate from coming off the screw and the screw from coming off the terminal board. but,
If the screws do not come off the terminal board, the screws and retainer plate will not be lost.
If the retainer plate does not come loose from the spring screw, it will have the effect of making assembly easier. Although a wire connection means consisting of a screw, a holding plate, and a screw hole is provided, it is not necessary to necessarily provide such a wire connection means. For example, it may be provided with a connection means consisting of a screw and a screw hole. In this wire connection means, a conductor is wound around the shaft of a screw, and then the screw is tightened to connect the wire. Although two types of attachment means are provided, a claw and a recess, only one of them may be used. Further, attachment means other than these may be provided. It is convenient if the release button and lock spring are used in common with those of other types of wiring devices.

[Effect of idea]

The earth terminal device according to this invention includes a one-piece body having a recess, a terminal plate having a connection means, a locking spring that connects the conductor to the terminal plate by pressing, and a release that releases the connection of the conductor by the locking spring. A terminal plate, a lock spring, and a release button are housed in the recesses so that the connection means is exposed from the recess, and mounting means for the mounting frame are provided on both sides of the body. The earth terminal device is provided with a recess on the side surface of the recess, and the side surface of the terminal board is made up of an inclined piece with a part of the terminal board cut and raised, and is elastically deformable in a direction perpendicular to the side surface. Since a convex portion is provided, and the concave portion and the convex portion constitute a fitting and fixing means, the terminal plate can be easily, quickly, and reliably fixed to the concave portion of the body.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of one embodiment of the earth terminal device according to this invention, and FIG. 2 is a perspective view of the mounting frame. 1...Body, 1a...Recess, 1b...Claw, 1
c... recess, 2... terminal board, 3... lock spring, 4...
...Release button, 5...screw, 6...pressing plate, 7...
Concave portion, 9...screw hole, 10...convex portion.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A one-piece body with a recess, a terminal board with a connection means, a lock spring that connects a conductor to the terminal board by pressing, and a release of the connection of the conductor by the lock spring. The terminal board, the lock spring, and the release button are housed in the recess so that the connection means is exposed from the recess, and mounting means for the mounting frame are provided on both sides of the body. A ground terminal device is provided with a recess on the side surface of the recess, and the side surface of the terminal board is made up of an inclined piece made by cutting out a part of the terminal board, and is elastic in a direction perpendicular to the side surface. An earth terminal device characterized in that a deformable convex portion is provided, and the concave portion and the convex portion constitute fitting and fixing means. (2) The earth terminal device according to claim 1 of the utility model registration claim, wherein the body is a single module.