JPS5854829Y2 - wire clamp - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a nut cracker type electric wire clamp that can be installed without bolts and with one touch.

Wire clamps have conventionally been used to attach spacers, dampers, etc. to overhead wires.

This wire clamp has a clamp main body 1 as shown in Fig. 3.
Connect one end of the clamp body 1' and the cap 2' with a hinge 3', tighten the bolt/nut 4' to the other end of the clamp body 1' and the cap 2', and insert the electric wire 5 between the clamp body 1' and the cap 2'. This is a so-called nut cracker type clamp that grips the bolt 4', and its gripping force is controlled by the tightening force of the bolt/nut 4'.

The tightening force of bolts and nuts varies from person to person and is not constant.
There was a risk that the bolts would come loose after tightening, damaging the wires, or that the tightening force would become excessive, damaging the bolts.

For this reason, it is necessary to periodically inspect and retighten after properly tightening, which is cumbersome to manage.Also, bolts and nuts are tightened for each clamp, so in the case of multi-conductor conductors with a large number of clamps. had the disadvantage that this tightening required a considerable amount of effort.

Recently, so-called boltless wire clamps have been developed to improve this, eliminating the need for tightening bolts and nuts, and allowing the clamp body and cap to be pressed into contact with each other in one touch to grip the wires, but the structure is complicated and the tightening force is low. It wasn't very big.

In view of this, the present invention has devised a wire clamp that has a large tightening force and can be easily installed with one touch.A nut cracker type wire clamp that grips wires by a clamp body with one end hinged and a cap. A lever is rotatably attached to both sides of the clamp body, a base plate is rotatably provided at the tip of this lever, a rod body having a saddle at the tip is inserted into this base plate via a repulsive spring, and this is attached to the lever 5 side. The saddle is fitted into a saddle holder provided on the cap, and the electric wire is gripped by pressing the clamp body and the cap into contact with each other.

Next, this will be explained in more detail based on the drawings.

Fig. 1 shows an example of a wire clamp according to the present invention gripped by an electric wire. A lever 5 of a desired length is rotatably attached to both sides of the lever 5, and a base plate 6 is rotatably provided at the tip of the lever 5, and a rod 7 having a saddle 8 at the tip has a repulsive rod 7. When the clamp body 1 and the cap 2 are inserted through the spring 9 and are pushed toward the lever 5 side and the saddle portion 8 is fitted into the saddle holder 10 provided on the cap 2, the clamp body 1 and the cap 2 are connected to the lever 5, the rod body 7 having the saddle portion 8, and the saddle portion 8. The clamp body 1 and the cap 2 are brought into pressure contact with each other by a repulsive spring 9.
The electric wire 4 between the two is gripped.

In order to grip the wire 4 with the wire clamp according to the present invention,
As shown in FIG. 2, the clamp body 1 and the cap 2 are opened, and at this time, the base plate 6 provided at the tip of the lever 5 attached to the clamp body 1 is easily rotated, and a saddle portion 8 is inserted therein. The rod body 7 can be positioned outward (FIG. 2 shows this state), and after inserting an electric wire (not shown) between the clamp body 1 and the cap 2, the rod body 7 is closed. By rotating approximately 180 degrees and fitting the saddle 8 into the saddle holder 10 of the cap 2, the clamp body 1 and the cap 2 are separated.
(See Figure 1)
.

In order to remove the wire clamp gripped in this way, the saddle 8 of the rod 7 can be removed from the saddle support 10, so it can be easily removed with a single touch and can be easily attached and removed.

Further, the gripping force of the electric wire clamp when attached is based on the repulsive force of the repulsive spring, so that a large gripping force can be achieved.

It goes without saying that the repulsive spring inserted into the rod 7 is not limited to a stringed spring, but may be a stack of leaf springs, for example.

As explained above, according to the present invention, levers are rotatably attached to both sides of the clamp body in a nut cracker type electric wire clamp, a board is rotatably provided at the tip of the lever, and a repulsive spring is connected to the board. A rod with a saddle at the tip is inserted, the saddle is positioned on the lever side, and the saddle is fitted into the saddle holder provided on the cap to attach the wire clamp, so the wire clamp can be attached and removed in one touch without bolts. It can be easily done with
It is suitable for multi-conductor power transmission lines with a large number of clamps, and since the clamping force is based on the repulsive force of the repulsive spring, the desired clamping force can be easily achieved, and the practical effect is great.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of the electric wire clamp according to the present invention gripped by an electric wire, Fig. 2 is a perspective view showing an example of the clamp body and cap opened, and Fig. 3 is It is a front view showing a conventional electric wire clamp. 1... Clamp body, 2... Cap, 3... Hinge joint, 3... Electric wire, 5...
... Lever, 6 ... Board 1, 7 ...
- Rod body, 8...Saddle part, 9...Repulsion spring, 10...Saddle part support.

Claims (1)

[Scope of utility model registration request] In a nut cracker-type wire clamp that grips a wire by press-contacting a clamp body with one end hinged and a cap, a lever is rotatably attached to both sides of the clamp body, and a base plate is rotatably attached to the tip of the lever. A rod having a saddle at the tip is inserted into this board via a repulsive spring, the saddle is positioned on the lever side, and the saddle is fitted into a saddle holder provided on the cap to press the clamp body and the cap into contact. An electric wire clamp characterized by: