JPH0448100Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a wedge-type retention clamp, and particularly to a wedge-type retention clamp having a wire insertion groove in the clamp body into which an electric wire can be inserted from the side.

BACKGROUND ART As shown in FIG. 1, a conventional wedge-type retaining clamp integrally includes a clamp body 1, an overhead line puller 2, and a retaining portion 3, and inserts an electric wire W into a curved wire insertion groove 4 on the side surface. Insert through opening 5 and wedge 6
into the wire insertion groove 4 together with the wire W, and insert the wedge 6
The electric wire W is fixed by the wedge action.

As shown schematically in Figure 2, overhead line work using such a wedge-type retaining clamp involves first fixing the retaining section 3 to a utility pole, etc. via an insulator P, etc., and fixing one end to the wire at the zero point. Hook the hook part at the other end of the simmerer 10 onto the overhead wire handle 2 that is integrated with the clamp body 1, tighten the simmerer 10, pull in the wire W, bend the wire W along the curved wire insertion groove 4, and then When the electric wire W is inserted into the insertion groove 4 through the opening 5 of the wire W, and the wedge 6 is inserted into the insertion groove 4 and the simmerer 10 is loosened, the electric wire W is held by the clamp body 1 by its tension.

This kind of overhead line work is usually done on unstable poles, so bending the wires is extremely difficult and requires skill, so it is necessary to use removable wire support brackets and consider the position of the overhead wire handles. There is already a known device that attempts to control the posture of the clamp body by using the tightening force of a simmerer.
58-57230).

Problems to be Solved by the Invention However, in cases where the clamping force of the simmerer is used to control the posture of the clamp body, a member that receives the large tension of the electric wire is required.
Not only is it difficult to design the position of the overhead wire puller on the clamp body so that the wire insertion groove is completely horizontal, but the clamp body must always take a fixed position, which may cause it to be slightly curved. It cannot accommodate the ends of wires that are wrapped (e.g., wrapped). Therefore, such a clamp cannot completely eliminate the work of bending the wire.

This invention was made to solve such problems, and the purpose is to provide a wedge-type retaining clamp that does not require bending the wires during overhead line work and has excellent workability.

Means for Solving the Problems In order to achieve the above object, this invention includes a clamp body having a wire insertion groove into which a wire can be inserted from the side, and a clamp body that is rotatably pivoted to the clamp body. A wedge-type retaining clamp is constructed from a retaining member having a handle and a retaining portion.

Function: The retaining member having the overhead wire puller and the retaining portion is rotatably attached to the clamp body, so when the wire is tightened and pulled in by the simmerer, the tension is applied to the wire, the anchoring point 0, and the overhead wire puller. , it only works linearly with the retaining part and the fixing part, and has no effect on the clamp body, which can rotate freely. It can be easily aligned. Further, when the wire is clamped by loosening the simmerer, the tension of the wire acts on the wire, the clamp body, the pivot portion, and the retaining portion, so that the clamp body can securely grip the wire.

Embodiment Hereinafter, an embodiment of this invention will be described with respect to a wedge-type retaining clamp shown in the figure.

As shown in FIG. 3, the wedge-type retaining clamp includes a clamp body 11 into which the electric wire W can be inserted through an opening 15 on the side, and a hinge pin that constitutes a pivot portion 18 on this clamp body 11 to allow rotation. It consists of a retaining member 17 which is pivotally mounted.

The anchorage member 17 has an overhead line puller 12 on its front part.
An opening constituting the
3 is formed. Note that the clamp body 11 has a wedge 16 for firmly gripping the electric wire, as in the prior art.

When carrying out overhead line work, as shown in FIG. 4, first, the tie member 17 is fixed to the utility pole via the insulator P by the tie part 13, and the other end of the simmerer 20, whose one end is fixed to the electric wire W, is tied. The electric wire W is pulled in by hooking it onto the overhead line handle 12 at the front of the member 17 and tightening the shimmerer 20. At this time, although the retaining member 17 is subjected to the tension of the electric wire W, the clamp body 11 can freely rotate because it is pivotally attached to the clamp body 11. Therefore, the insertion groove 1 of the clamp body 11
4 can be easily aligned with the straight electric wire W, and the clamp body 11 can be fitted onto the electric wire W. As a result, the electric wire W can be inserted into the insertion groove 14 without bending the electric wire W.
When the wedge 16 is inserted into the insertion groove 14 along the electric wire W and the simmerer 20 is loosened there, the tension of the electric wire W acts on the clamp body 11, and the electric wire is inserted by the action of the inclined insertion groove 14 and wedge 16. W is fixedly held by the clamp body 11. Since there is no need to perform the difficult work of bending wires in dangerous locations such as on utility poles, overhead line work is significantly improved.

In addition, if the clamp body and the retaining member are made removable at the pivot joint, in the case of a difference in the shape of the insulator, it is possible to replace only the retaining member without having to replace the entire retaining clamp. In addition, only the clamp body or only the retaining member can be replaced as necessary.

Effects of the invention According to this invention, since the retaining member having the overhead wire puller and the retaining portion is rotatably attached to the clamp body, the opening of the insertion groove of the clamp body can be easily inserted into the state of the electric wire. Since the wire can be inserted into the insertion groove of the clamp body without bending the wire, the overhead wire work can be significantly improved.

[Brief explanation of the drawing]

Figure 1 is a side view of a conventional wedge-type detention clamp, Figure 2 is a schematic illustration of overhead line work using the wedge-type detention clamp shown in Figure 1, and Figure 3 is a wedge-type retention clamp showing an embodiment of this invention. Side view of the clamp,
FIG. 4 is a schematic explanatory diagram of overhead line work using the wedge-type retaining clamp shown in FIG. 3. 1, 11... Clamp body, 2, 12... Catenary wire handle, 3, 13... Retaining part, 4, 14... Wire insertion groove, 5, 15... Opening, 6, 16... Wedge, 17 ...Retaining member, 18... Pivot joint, 10,
20...Simmerer.

Claims (1)

[Scope of utility model registration request] A wedge-type retaining clamp comprising a clamp body having a wire insertion groove into which a wire can be inserted from the side, and a retaining member rotatably attached to the clamp body and having an overhead wire puller and a retaining portion.