JP3181978B2 - Wire connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire connector for easily disconnecting and reconnecting an electric wire provided on a wraparound electric wire or the like for connecting between anchor portions of an overhead distribution line.

[0002]

An object of the present invention is to cut off an electric wire in a short time at an electric wire portion having a short length, fixed at both ends, and having a relatively large outer diameter, such as a wrapped electric wire for connecting between the draw-off portions of an overhead distribution line. In some cases, the work of reconnecting the electric wire in a short time may be required.

Conventionally, such work has been performed by compression connection or tightening connection by bolting. However, such work is complicated and time-consuming. Recently, in order to minimize the power outage time or to work without power outage, it is often required to perform the above disconnection and reconnection in hot-line work. It is difficult to meet the demand.

[0004] The present invention has been made in view of the above points, and is an electric wire connector installed on the above-mentioned wrapped electric wires, so that the electric wires can be easily disconnected and reconnected in the shortest time. It is intended to provide a new electric wire connector.

[0005]

The electric wire connector of the present invention comprises:
It is composed of a pair of wire connection bases provided integrally with the wire connection sleeve portion and the short piece insertion portion and one rod-shaped short piece,
A pair of wire connection bases are arranged and fixed so that the axes of the short-circuit piece insertion holes are parallel or on the same line, and one short-circuit piece can be inserted into and removed from the pair of wire connection bases. It is characterized in that

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments and functions of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view of a first embodiment of the present invention, and shows only a pair of electric wire connection bases and one short-circuit piece. FIG. 2 is a perspective view of a pair of electric wire connection bases of the embodiment of FIG. 1 embedded in a flexible insulator.

In the figures, reference numerals 1 and 1 'denote electric wire connection bases made of a good conductor such as copper or aluminum. The electric wire connection sleeve portion 2 or 2' for connecting the electric wire W or W 'and the short-circuit piece insertion portion 3 or 3 ', which are integrally formed so as to be orthogonal to each other. The pair of electric wire connection bases 1 and 1 ′ are arranged such that the axes of the short-circuit piece insertion holes 4 and 4 ′ are parallel to each other, and the axes of the electric wire connection sleeves 2 and 2 ′ are orthogonal to each other. It is arranged as it is. However, the wire connection sleeves 2 and 2 '
Does not have to be on the same line. The inner surfaces of the short-circuit piece insertion holes 4 and 4 'are desirably silver-plated in order to improve electrical contact.

FIG. 1 shows only a pair of electric wire connection bases 1 and 1 'and one short-circuit piece 6, but they are fixed by a suitable support (not shown) and, if necessary, protected by a cover (not shown). . In the embodiment shown in FIG. 2, the pair of electric wire connection bases 1 and 1 'arranged as described above are embedded and fixed in a flexible insulator 5 such as rubber.

The short-circuiting piece 6 is a U-shaped rod made of a good conductor such as copper or aluminum similarly to the electric wire connection base, and the pair of legs 7 and 7 ′ are connected to the above-mentioned pair of electric connection bases 1, 1. ′, Freely inserted into the shorting piece insertion holes 4, 4 ′,
It is formed so that it can be removed. It is desirable that the legs 7, 7 'are also silver-plated to improve the electrical contact.

Therefore, when the legs 7, 7 'of the short-circuiting piece 6 are inserted into the short-circuiting piece insertion holes 4, 4', the pair of wire connection bases 1 and 1 'are electrically connected by the short-circuiting piece 6, Therefore, the electric wires W and W 'are connected. When the short-circuit piece 6 is pulled out from the wire connection bases 1 and 1 ', conduction between the wire connection bases 1 and 1' is cut off, and the wires W and W 'are separated. Then, the short-circuit piece 6 is again connected to the wire connection bases 1 and 1 '.
, The wires W and W 'can be reconnected. That is, according to the electric wire connector of the present invention, the short-circuit piece 6 is removed from the electric wire connection bases 1 and 1 ′ and the base 1
And re-insertion into 1 ', the electric wires W and W' can be disconnected and re-connected, and the electric wires can be disconnected and re-connected very easily and in the shortest time.

However, also in the above-described wire connector of the present invention, due to restrictions on the precision in working and assembling, the short-circuit piece insertion holes 4 and 4 'of the pair of wire connection bases 1 and 1' have the shaft centers of the short-circuit piece insertion holes 4 and 4 '. Insufficient parallelism or shorts 7, 7 '
In some cases, the straightness and parallelism are insufficient, and the legs 7 and 7 'of the short-circuiting piece cannot be smoothly inserted into the short-circuiting piece insertion holes 4 and 4'.

At the beginning of manufacture and installation, the short-circuit piece insertion hole 4,
Even if the legs 7 and 7 'of the 4' and the short-circuiting pieces have sufficient parallelism and straightness, two pieces are required for the temperature change cycle after installation, aging, or rough handling of the operator. Of the short-circuit piece insertion holes 4, 4 'of the electric wire connection base, or the straightness or parallelism of the legs 7, 7' of the short-circuit piece is lost, and the short-circuit piece is removed. In some cases, reinsertion cannot be performed smoothly.

In view of the above, in the electric wire connector of the present invention, as shown in FIG. 2, a pair of electric wire connection bases 1 and 1 'are embedded in a flexible insulator 5 such as rubber, plastic or the like. It is desirable that the connection bases 1 and 1 'are fixed to each other by a flexible insulator and are supported flexibly. By flexibly supporting the wire connection bases 1 and 1 'in this manner, the flexible insulator is appropriately deformed when the short-circuit piece is inserted into or removed from the wire connection base, and the short-circuit piece insertion holes 4, 4'. Insufficient parallelism of the short-circuit piece 6, and the insufficient parallelism of the legs 7, 7 'of the short-circuit piece 6 are compensated, repaired, inserted,
The smooth removal is ensured.

Further, it is desirable that a cylindrical spring contact body is provided in the short-circuit piece insertion holes 4 and 4 '. By inserting a spring contact body, it is easy to insert the legs 7, 7 'by making a slight difference between the inner diameter of the short-circuit piece insertion holes 4, 4' and the outer diameter of the legs 7, 7 'of the short-circuit piece. And Also, when compensating for and repairing the insufficient straightness of the legs 7, 7 ', a sufficient electrical connection between the inner surfaces of the short-circuit piece insertion holes 4, 4' and the legs 7, 7 'of the short-circuit piece. Contact can be ensured.

As such a spring contact member, for example, a spring contact band member described in Japanese Utility Model Publication No. 51-8710 is suitable. FIGS. 10 and 11 show a perspective view and a cross-sectional view of the band formed in a cylindrical shape. A spring contact strip 10 formed from an elastic metal strip has an array of contact tongues 11 formed by parallel grooves 12. The tongue piece 11 crosses the surface of the band body 10 as shown in FIG.

The first embodiment of the electric wire connector according to the present invention has been described in detail together with the operation thereof. Other embodiments are shown in FIGS. 3, FIG. 5, FIG. 7, FIG. 8, and FIG. 9 show perspective views of other different embodiments, similarly to FIG. 1, showing only a pair of wire connection bases and short-circuit pieces. These electric wire connection bases are supported by a suitable support (not shown), and may be covered by a cover (not shown) if necessary. FIGS. 4 and 6 are perspective views showing the electric wire connection base shown in FIGS. 3 and 5 embedded in a flexible insulator.

The second embodiment of the present invention shown in FIGS. 3 and 4 is different from the first embodiment shown in FIGS. 1 and 2 in that:
In the first embodiment, the wire connecting sleeves 2 and 2 ′ extend at right angles from the side surfaces of the shorting piece insertion portions 3 and 3 ′, and the wires W and W
3 is perpendicular to the axis of the wire W and the wire W and W ′, and the short-circuiting piece insertion hole is orthogonal to the axis of the wire W and W ′.
In the second embodiment of FIG. 4, the wire connection sleeves 2, 2 ′ branched at right angles from the side surfaces of the short-circuit piece insertion portions 3, 3 ′ are parallel to the axis of the short-circuit piece insertion holes 4, 4 ′. This means that the axes of the wires W and W 'are parallel to the insertion holes of the short-circuit pieces, and the insertion of the short-circuit pieces 6 is performed in a direction parallel to the axes of the wires W and W'.

In the third embodiment shown in FIGS. 5 and 6, similarly to the second embodiment shown in FIGS. 3 and 4, the axes of the short-circuit piece insertion holes 4, 4 'and the wires W, W' are formed. Formed in parallel with the axis,
5 and 6, the short-circuit piece insertion holes 3 and 3 'are arranged so as to be on the same axis. Therefore, the short-circuit piece 6 is not a U-shaped bent rod, but a linear rod.

In the fourth embodiment shown in FIG. 7, as in the first embodiment shown in FIGS. 1 and 2, the wire connecting sleeves 2 and 2 'are branched at right angles to the short-circuit piece insertion portions 3 and 3'. As in the third embodiment of FIGS. 5 and 6, the short-circuit piece insertion holes 4 and 4 '
Are arranged on the same axis. Therefore, in this embodiment, the short bar 6 of the linear rod-shaped body is the electric wire W,
It is inserted in a direction perpendicular to the axis of W '.

In the fifth and sixth embodiments shown in FIGS. 8 and 9, the short-circuit piece insertion holes 3, 3 'and the wire connection sleeves 2, 2' intersect at an angle of 45 degrees. In the fifth embodiment shown in FIG. 8, the two electric wire connection bases 1 and 1 'are disposed so that the axes of the short-circuit piece insertion holes 4 and 4' are parallel to each other. In the sixth embodiment shown in FIG. 9, the short-circuit piece insertion holes 4 and 4 'are arranged so that their axes are on the same line.

Also in the above-described fourth to sixth embodiments, it is desirable that the pair of electric wire connection bases 1 and 1 'be buried in a flexible insulator made of rubber or plastic, and FIGS. It is easily understood from the above description that in each of the embodiments described in (1) and (2), it is desirable that the spring contact band is provided inside the short-circuit piece insertion hole in a cylindrical shape.

[0022]

According to the wire connector of the present invention having the construction and operation as described in detail above, the short-circuit piece 6 is inserted into or removed from the short-circuit piece insertion holes 4 and 4 'of the pair of wire connection bases 1 and 1'. By doing so, the electric wires W and W 'connected to the electric wire connection sleeves 2 and 2' of the bases 1 and 1 'can be connected or disconnected from each other, so that the electric wires W and W' can be connected. Alternatively, the separation can be performed very easily and in the shortest time.

In the present invention, when the pair of electric wire connection bases are fixed to each other by a flexible insulator made of rubber or plastic, short-circuits may occur due to restrictions on machining accuracy, aging, and rough handling of the operator. Single insertion hole 4, 4
軸 even if the axis of ´ is inconsistent or lacks parallelism, or the straightness and parallelism of the short-circuit piece are insufficient, the smooth insertion of the short-circuit piece 6 into the short-circuit piece insertion holes 4 and 4 ′ or the removal from it. Can be secured.

Further, in the present invention, the short-circuit piece insertion holes
When a spring contact strip is provided on the inner surface of the ´ ′, a slight difference is made between the inner diameter of the shorting piece insertion hole and the outer diameter of the leg of the shorting piece in order to facilitate insertion and removal of the shorting piece 6. Even if you give
Good electrical contact can be maintained even when slight deviations occur in the parallelism or straightness of the axes of the two electric wire connection bases.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention (however, only a pair of wire connection bases and short-circuit pieces are shown).

FIG. 2 is a perspective view of a pair of wire connection bases of the embodiment of FIG. 1 embedded in a flexible insulator.

FIG. 3 is a perspective view similar to FIG. 1 for a second embodiment of the present invention.

FIG. 4 is a perspective view of the embodiment of FIG. 3 embedded in a flexible insulator.

FIG. 5 is a perspective view similar to FIG. 1 for a third embodiment of the present invention.

FIG. 6 is a perspective view of the embodiment of FIG. 5 embedded in a flexible insulator.

FIG. 7 is a perspective view similar to FIG. 1 for a fourth embodiment of the present invention.

FIG. 8 is a perspective view similar to FIG. 1 for a fifth embodiment of the present invention.

FIG. 9 is a perspective view similar to FIG. 1 for a sixth embodiment of the present invention.

FIG. 10 is a developed plan view of the spring contact strip.

FIG. 11 is a sectional view of a spring contact strip.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 and 1 'Wire connection base 2 and 2' Wire connection sleeve 3 and 3 'Short-circuit piece insertion part 4 and 4' Short-circuit piece insertion hole 5 Insulator 6 Short-circuit piece 10 Spring contact strip 11 Contact tongue

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H02G 1/02 H01R 11/01 H02G 15/08

Claims (3)

(57) [Claims] 1. An electric wire connecting base comprising a pair of electric wire connecting bases integrally provided with an electric wire connecting sleeve portion and a short-circuit piece inserting portion, and one rod-shaped short-circuiting piece. Wherein a pair of wire connection bases are disposed and fixed as described in (1), and one short piece is inserted into and removed from the short piece insertion holes of the pair of wire connection bases. . 2. The electric wire connector according to claim 1, wherein the pair of electric wire connection bases are fixed to each other by a flexible insulator such as rubber. 3. The electric wire connector according to claim 1, wherein a spring contact strip is provided inside the short-circuit piece insertion hole of the electric wire connection base in a cylindrical shape.