JP2555927B2 - Clip-type cable terminal board and connection tool - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable terminal plate and a connecting tool for connecting between devices of a telephone exchange.

[0002]

2. Description of the Related Art When connecting devices of a telephone exchange with cables, the cables from each device are connected using a terminal board. Conventionally, in this connection work, a cable is connected in one-touch with a connecting tool at a clip-type terminal. Here, a specific connection process using a clip-type cable terminal board will be shown below as a conventional example.

FIG. 4 is a connecting process diagram showing a process of connecting electric wires in a conventional clip type cable terminal board.

The clip type terminal 15 as shown in FIG.
A thin plate of phosphor bronze is punched by a punching press with a highly accurate mold. The clip-type terminal 15 includes terminal pieces 15a and 15b, which are sheared and face each other just like split chopsticks.
The cable 12 can be sandwiched between a and 15b.

The clip type terminals 15 as described above are supported by a synthetic resin molded insulating pedestal 11 so as to be arranged at appropriate intervals.

The connecting tool 13 used for connecting the cable 12 is formed with the tip side of the tool and the side with no cutting edge, and can be used by reversing arbitrarily.

A cable connecting method using this tool will be described. As shown in FIG. 4 (a), first, the cable 12 is placed on the crack of the terminal while being covered, and the connecting tool 13 is used to connect the cable 12 (see FIG. As shown in b), when the terminal pieces 15a, 15a
Since each b has an appropriate elasticity, the terminal pieces 15a, 1
The elasticity of the cable 12 increases as the cable 12 is pushed between 5b. Therefore, the cable 12 has a terminal piece 1
5a and 15b bite into the cable 12, the coating of the cable 12 is peeled off, and a bare core wire is held between the terminal pieces 15a and 15b and brought into close contact therewith.

At this time, a force that spreads outward acts on the upper ends of the terminal pieces 15a and 15b, and the force is spread by the inner wall of the connecting tool 13, so that the cable core wire is stronger to the terminals. Get caught

At this time, since the lower end of one side of the connecting tool 13 is the cutting edge 14, when the connecting tool 13 is pushed once, the extra length of the core wire is cut at the cutting point 16.

By using such a clip-type cable terminal board, anyone can easily perform cable connection work.

[0011]

In this conventional clip-type cable terminal board, a connecting tool having a cutting edge on one side is used at the time of connecting a cable, but this connecting tool has a function for preventing erroneous insertion. Since there is no such problem, there is a problem that the operator mistakes the use of the connecting tool and, when pushing it in the opposite direction, the cable side to be connected to the device is cut.

Further, when the distance between the clip type cable terminals is narrow, if the cutting tool has a cutting edge, when connecting the cables, other cables already connected to the terminals may be accidentally cut. There was also a problem.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a clip-type cable terminal plate and a connecting tool which can be connected without accidentally disconnecting the cable by the connecting tool.

[0014]

A clip-type cable terminal plate according to the present invention for achieving the above object is a clip having two terminal pieces that are sheared and face each other and sandwich a cable therebetween. In a clip-type cable terminal plate composed of a type terminal and a pedestal supporting the clip-type terminal , the cable is placed on a pedestal which is one of the extending directions of the cable sandwiched by the two terminal pieces. To disconnect
It is characterized in that a female blade is provided.

Further, the connecting tool according to the present invention is characterized in that a hole for fitting with the outer shape of the clip type terminal and the blade on the base of the clip type cable terminal plate is provided.

[0016]

In the present invention having the above-described structure, the clip type cable terminal plate has a blade on a pedestal which is one of the extending directions of the cable sandwiched between the two terminal pieces of the clip type terminal, and has a connection. The tool has a hole that fits into the outer shape of the clip-type terminal and the blade on the base of the clip-type cable terminal plate. Therefore, the worker puts the cable in the crack of the two terminal pieces forming the clip-type terminal and pushes down the cable using the connecting tool, and accordingly, the cable is dragged to the place where it contacts the blade on the pedestal. The cable is stripped off, and a bare core wire is held between the two terminal pieces and brought into close contact. Then, when the connecting tool is pushed further, the blade is pushed into the cable and the excess length of the cable is cut.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the schematic construction of an embodiment of the clip type cable terminal board of the present invention, and FIG. 2 shows a connecting tool used in the embodiment of the clip type cable terminal board of the present invention. It is a perspective view showing a schematic structure.

The clip type cable terminal board of this embodiment is
As shown in FIG. 1, it has an insulating pedestal 3 made of synthetic resin, and the insulating pedestal 3 has a clip-type terminal 1 and a thin plate having a cutting edge 2 formed on the upper end thereof, which are the same as those of the conventional one. It is supported. The clip-type terminal 1 is a phosphor bronze thin plate punched by a punching press with a highly accurate mold. This clip-type terminal 1 has terminal pieces 1a and 1b.
And is formed so as to face each other just like split chopsticks, and the cable can be held between the terminal pieces 1a and 1b. Although FIG. 1 shows a single clip type terminal 1, a plurality of clip type terminals 1 are usually arranged at appropriate intervals. In the clip-type cable terminal board of the present embodiment, the clip-type terminal and the thin plate having the blade formed on the upper end are shown to be aligned with each other, but the present invention is not limited to this, and the clip-type terminal is not limited to this. The blade and the blade may be integrally formed.

On the other hand, a connecting tool 4 used when connecting a cable to the clip type cable terminal plate shown in FIG.
Has a hole that fits into the outer shape of the clip-type terminal 1 and the cutting edge 2 on the insulating pedestal 3 shown in FIG. This connecting tool 4 can be arbitrarily inverted and used, and the operator pushes down the connecting tool 4 while holding the cable in the clip-type terminal 1 so that the cable is cut into the cutting edge 2.
It is dragged to the place where it touches and is pushed further and the insulation base 3
The cable can be cut by fitting the outer shape including the upper clip-type terminal 1 and the cutting edge 2 and the hole formed in the connecting tool 4. Further, a notch 5 is formed on the side surface of the lower end portion of the connecting tool 4 so as to communicate with the hole formed in the connecting tool 4. The notch 5 pulls out the cable at the time of cutting, and the clip type terminal 1 on the insulating pedestal 3
Also, the outer shape of the cutting edge 2 and the hole formed in the connecting tool 4 can be reliably fitted.

Next, a cable connecting method using the above connecting tool will be described.

FIG. 3 is a connecting process diagram showing a process of connecting electric wires in one embodiment of the clip type cable terminal board of the present invention.

As shown in FIG. 3 (a), the cable 7 is first placed on the split of the terminal while being covered, and the connecting tool 4 is used to move the terminal in the direction of arrow F as shown in FIG. 3 (b). When pushed down along the cracks, the terminal pieces 1a and 1b have appropriate elasticity, so that the elasticity of the cable 7 increases as the cable 7 is pushed between the terminal pieces 1a and 1b. Therefore, the terminal pieces 1a and 1b bite into the cable 7, the coating of the cable 7 is peeled off, and a bare core wire is held between the terminal pieces 1a and 1b so as to be in close contact with each other. The cable 6 that can be connected with such a coating is a single wire (for example, a core diameter of 0.
4 to 0.8 mm) polyethylene and PVC insulation coated electric wires are considered.

At this time, a force that spreads outward acts on the upper ends of the terminal pieces 1a and 1b, and the force is spread by the inner wall of the connecting tool 4, so that the cable core wire is stronger to the terminals. Get caught

At this time, since the hole formed in the connecting tool 4 is shaped to fit with the outer shape of the clip-type terminal 1 protruding from the upper surface of the insulating pedestal 3 and the cutting edge 2, When the tool 4 is pushed once, the extra length of the core wire is cut at the cutting point 7.

By using such a clip-type cable terminal plate and a connecting tool, anyone can easily carry out the cable connecting work, and can work without considering the directionality of the connecting tool.

[0027]

As described above, the clip-type cable terminal plate and the connecting tool according to the present invention have the pedestal which is one of the extending directions of the cable held between the two terminal pieces of the clip-type cable terminal plate. Since the connecting tool has a hole on the upper side and the outer shape consisting of this blade and the clip type terminal is fitted, it is possible to work without considering the direction of use of the connecting tool as in the past. Therefore, the operator does not accidentally cut the use of the connecting tool by mistake.

Further, since there is no cutting edge on the side of the connecting tool, if the space between the clip type cable terminals is narrow, it is possible to prevent accidental disconnection of other cables already connected to the terminals.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of an embodiment of a clip-type cable terminal board of the present invention.

FIG. 2 is a perspective view showing a schematic configuration of a connecting tool used in one embodiment of the clip-type cable terminal board of the present invention.

FIG. 3 is a connection process diagram showing a process of connecting electric wires in one embodiment of the clip-type cable terminal board of the present invention.

FIG. 4 is a connection process diagram showing a process of connecting electric wires in a conventional clip-type cable terminal plate.

[Explanation of symbols]

 1 Clip type terminal 1a, 1b Terminal piece 3 Insulation pedestal 4 Connection tool 5 Notch 6 Cable 7 Cutting point

Claims (2)

(57) [Claims] 1. A clip-type cable terminal plate comprising a clip-type terminal having two terminal pieces that are sheared and face each other and hold a cable therebetween, and a pedestal that supports the clip-type terminal. In the clip type cable terminal plate, a blade for cutting the cable is provided on a pedestal in which one of the cables sandwiched by the two terminal pieces extends. 2. A connecting tool provided with a hole for fitting with the outer shape of the clip-type terminal and the blade on the base of the clip-type cable terminal plate according to claim 1.