JPS6236211Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is mainly concerned with the improvement of the wire temporary holding structure of the compression terminal that connects the twisted wire structure used for transmitting high-voltage power. This type of connection work, which is common, can be easily and reliably performed by one operator according to predetermined standards.
Furthermore, it has an efficient structure that not only improves workability but also eliminates manufacturing loss and material loss, thereby increasing economic efficiency.

Conventionally, this type of temporary holding structure includes one in which a gripping piece for temporarily holding the wire is integrally formed at the mouth of the wire insertion compression part of the compression terminal, or a separate temporary holding cap at the entrance of the wire insertion compression part of the compression terminal. However, these have a defect in that their holding power is not reliable, and since the wire connection work is often done at a high place on the pole, it is difficult to connect the wire to the wire insertion compression part. If you insert only the correct size and release your hand when compressing with a compression tool, the position of the carefully inserted wire and compression terminal may shift, or in some cases, the wire may slip out of the compression terminal and fall to the ground. It was hot. Therefore, it is necessary for another person to maintain the mutual position of the wire and compression terminal until the compression work is completed, and in addition to the compression worker, there is a need for another person to hold this, and in the end two people are needed for this connection work. of workers. In addition, since the temporary holding structure is provided separately from the wire insertion and compression section, there is not only material loss, but also the need to devise ways to generate sufficient holding force, which results in manufacturing and assembly losses, making it impractical. It was hot.

This invention was made in order to eliminate the above-mentioned conventional drawbacks, and the invention is to provide one or more protrusions on the inner side of the tube of the wire insertion compression part of the compression terminal to fit into the valleys between the outer wires of the stranded wires. This invention relates to the invention of a compression terminal characterized in that it is provided at two locations and allows an electric wire made of the stranded wire to be inserted spirally from the mouth by effectively utilizing the characteristics of the stranded wire.

Hereinafter, one embodiment will be specifically described based on the drawings.

In the drawings, reference numeral 1 denotes a wire insertion compression portion of the compression terminal A, which is tubular in shape and is formed to ensure electrical and mechanical performance after compression. 2 is a stranded wire B formed by converging multiple single wires and twisting them into a spiral shape.
3 is the stranded wire B
The covering portion 4 is a protrusion provided near the wire insertion opening of the wire insertion compression portion 1 of the compression terminal A, and has a shape that substantially fits the valley portion 2. This protrusion 4 is the third
In addition to providing two protrusions 4, 4 at opposing positions as shown in the figure and FIG. 4, as shown in FIG.
It is sufficient to simply provide the protrusions 4. In addition, protrusion 4
As in the embodiment, it is provided near the wire insertion port to facilitate fitting of the protrusion 4 and the trough 2.

In the above configuration, during the connection work, the protrusion 4 provided on the wire insertion compression part 1 of the compression terminal A is adapted to the valley part 2 of the stranded wire B, and the compression terminal A is rotated in accordance with the twist of the stranded wire B. When pushed in, the compression terminal A is fitted to the stranded wire B using the same principle as screw fitting, and the stranded wire B is inserted and held in the wire insertion compression portion 1 of the compression terminal A by a predetermined length. However,
The electric wire insertion compression part 1 of the compression terminal A and the stranded wire B are firmly connected to each other while maintaining a fixed mutual positional relationship based on the screw principle, so that they will not shift or come off unnecessarily. Therefore, the compression work for connecting the electric wire and the terminal using the compression tool can be performed quickly and reliably by one operator.

As explained above, this device has a simple structure in which the wire insertion compression part of the compression terminal is provided with a protrusion that fits the valley of the stranded wire, and the wire can be temporarily held firmly and reliably to the compression terminal. There is no need to disconnect or disconnect electric wires during work, and a single worker can efficiently connect safely and securely according to predetermined standards, and the work is extremely efficient and economical.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment of this invention before connection, Fig. 2 is a front view after connection, Fig. 3 is a cross-sectional plan view of the main part, Fig. 4 is a vertical cross-sectional front view of the same, and Fig. 4 is a front view of the same before connection. FIG. 5 is a cross-sectional plan view of a different embodiment. A...Compression terminal, 1...Wire insertion compression part, B...
...Twisted wire, 2...Trough between outer wires of stranded wire, 4
...Protrusion.

Claims (1)

[Scope of utility model registration request] An electric wire characterized in that one or two protrusions 4 are provided on the inner surface of the insertion side end of the electric wire insertion compression part 1 of the compression terminal A, which approximately fits into the troughs 2 between the outer wires of the stranded wire B. Compression terminal for connection.