JP2599057Y2 - Connection structure of wire connection bracket - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure of electric wire connecting fittings used for connecting electric wires.

[0002]

2. Description of the Related Art For example, when a branch wire is drawn from one connection fitting (clamp) holding an electric wire, the forked end of the other connection fitting (jumper socket) is fitted to the leg side provided on the clamp, and both ends are fitted. Is connected with a through bolt. At this time, when the nut is tightened, the bolt rotates together. This work is performed near the top of the tower and must be done with one hand at all times.In order to prevent this co-rotation, a ridge is provided near the opening on one side of the forked end, and the inserted bolt head is It is stopped by.

[0003] In this structure, however, the insertion direction of the bolt is limited only from the side having the ridge. For a worker leaning on the tower and tightening the nut, it is easier to insert the nut from the opposite direction, and even if it is convenient for periodic inspection, it is not possible. A structure that can be selectively inserted from either the left or right side of the through hole has been desired.

[0004]

A set of connecting fittings for connecting respective electric wires are provided with an engaging portion, and in a joined state, a ridge is provided near an opening of a through bolt hole on both sides so as to engage with a bolt head. When tightening with a bolt and a nut, a washer having a thickness that satisfies the height of the ridge is inserted into the bolt leg on the nut side, and the nut is tightened through this.

[0005]

1 to 3 show a case of a retaining clamp for retaining an electric wire to a steel tower and a jumper socket for connecting a jumper wire to the retaining clamp. One set of connection fittings is connected by providing a retaining clamp 1 on one side and a jumper socket 2 on the other side. The detent clamp 1 is capable of inserting and crimping an electric wire at one end, and the tab 1a at the other end is stopped by a steel tower via an insulator. The clamp 1 also has a leg side 1b at one lower end to serve as an engaging portion. Jumper socket 2 has leg 1b at one end
Is formed to form a forked portion 2a into which is insertable, and is used as another engaging portion. At the other end, a jumper wire can be inserted and crimped.
An insertion hole for a through bolt 3 is formed in the forked portion 2a and the leg side 1b, and protrusions 2b for engaging with the bolt head and preventing rotation are provided at both outlets of the forked portion. The washer 4 has an outer shape that can be inserted into the leg of the bolt 3 avoiding the ridge 2b, and has a thickness equal to or slightly larger than the height of the ridge.

FIGS. 4 and 5 show another embodiment. Each of the pair of opposing connection sleeves 5 has an engaging portion 5a at one end and a sleeve 5b capable of inserting and crimping an electric wire at the other end. Insertion holes for through bolts 3 are drilled in each of the engaging portion offset planes.
c is provided. The washer 4 has an outer shape that can be inserted into the leg portion of the bolt 3 while avoiding the ridge 2b, and has the same thickness as in the above embodiment. The number of protrusions is not limited to one, and a plurality of protrusions may be provided to engage with each side of the bolt head.

Therefore, in the retaining clamp, the washer 4 is fitted to the leg of the bolt 3 penetrating the forked part 2a and the leg side 1b, and tightened with a nut. The wrench can be operated without disturbing the strip. The operation is the same whether the bolt insertion direction is left or right. The same effect is obtained in the connection sleeve 5.

[0008] In addition to the connection fitting, there is a T-shaped connection sleeve (not shown), and another connection fitting is bolted to the center leg side. Hex notches are provided at the outlets on both sides of the through bolt holes in each joint state, and the same bolt tightening as in the above embodiment can be performed.

[0009]

[Effect of the invention] The actual opening of the bolt as a detent structure 60
-99327 is known. For the bolt inserted into the U-shaped cut of the rotating body flange, this U-shaped cut prevents the bolt head from turning, and the other end of the washer prevents the removal by centrifugal force. The bolt can be inserted only in one direction. On the other hand, the present invention is directed to the through hole of the stationary contact member, and the washer prevents the bolt from running idle regardless of whether the bolt is inserted from either side. The feature of the present invention is that the extreme work of high-place workers can be eased by this.

[0010]

[Brief description of the drawings]

FIG. 1 is a front view of the present invention.

FIG. 2 is a side view of the present invention.

FIG. 3 is a rear view when the nut of the present invention is removed.

FIG. 4 is a front view showing another embodiment of the present invention.

FIG. 5 is a side sectional view of a part of the present invention.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01R 4/28-4/46

Claims (1)

(57) [Scope of request for utility model registration] 1. A pair of connecting fittings for electric wire connection, wherein a pair of parallel ridges capable of preventing rotation of a bolt head are provided at both ends of a through hole at both contact surfaces with an opening therebetween. A connection structure of a wire connection fitting in which a washer having a thickness that satisfies the height of the ridge is inserted and inserted into the leg end of the insertion bolt to tighten a nut.