JPS6316271Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a wire gripping portion of a multi-conductor spacer using a spring.

In recent years, various electric wire gripping parts called spring type clamps that clamp electric wires using the spring force of a spring have been developed and used. As a new type of spring-type clamp, one end of the clamping body is hinged at one end to the clamp body of the wire gripping part provided at the end of the spacing body, and the other end is connected to the clamp body by a pair of clamps provided in a direction parallel to the spacing body. Utility Model Application No. 56-46475 discloses a device in which the spring constant is increased and the overall size is reduced by tightening and holding the device with a coil spring. However, when attaching this type of spring type clamp to an electric wire, the spring receiver washer is tightened in advance using a long bolt to compress the spring, and when the electric wire is gripped between the clamp body and the clamping body. First, it is necessary to hook the stopper to the latching part of the clamping body, loosen the long bolt, and tension the metal fitting by the force of the spring, so that the clasp is firmly engaged with the latching part. However, this bolt is not used for any further purpose, takes up space, increases the size of the clamp, and is wasteful in terms of cost.

Therefore, the purpose of this invention is to eliminate such waste and make effective use of it by attaching the frame plate member, which the short bolt that presses the spring receiver washer screws onto, to the clamp body in a removable manner, and attaching the electric wire. Before tightening, press the spring receiver washer with the bolt to compress the spring, and after attaching the wire, loosen the bolt and use the spring force to tension the stopper to the latching part of the tightening body, and then tighten the bolt. An object of the present invention is to provide an improved electric wire gripping part of a multi-conductor spacer which allows the frame plate member to be removed from the clamp body at the same time.

Other objects, features and advantages of the invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

1 and 2 of the drawings show one wire gripping portion in one example of a two-conductor spacer in which the wire gripping portions of this invention are provided at both ends of an elongated plate-shaped spacer. It can be used not only as a spacer for two conductors but also as a spacer for multi-conductors such as four conductors and four conductors.

As shown in the figure, the wire gripping parts 10 of this invention are attached to both ends of a long and thin plate-shaped spacer 2, respectively, and only one of them is shown in the drawing. Therefore, depending on the shape of the spacer 2, the spacer 1 can be used for 2 conductors, 4 conductors, 6 conductors, etc.
can be configured. The wire gripping part 10 of this invention includes a clamp body 11 having a groove 12 for receiving the spacer 2 at one end and a wire receiving groove 13 at the other end, and a clamp body 11 hingedly connected to the clamp body 11 by a pin 38. The clamping body 31 has a corresponding wire receiving groove 32 for holding the wire in cooperation with the wire receiving groove 13 of the clamp body 11.

The clamp body 11 and the clamping body 31 of the wire gripping part 10 have shapes as shown in the figure, and are made of aluminum alloy casting, for example. The clamp body 11 has a groove 12 at one end for receiving the spacer 2, and a hole 19 for a bolt 21 to be engaged with the hole 4 of the spacer 2 inserted into the groove 12. A bush 22 and a coil spring 23 are provided between the bolt 21 and the hole 19 to ensure electrical continuity between the spacer 2 and the clamp body 11 and to prevent rattling. Further, a wire receiving groove 13 is provided at the other end of the clamp body 11, and cooperates with the wire receiving groove 32 of the clamping body 31 to grip an electric wire (not shown). A bracket portion 33 of a clamping body 31 is engaged with a bracket portion 14 near the wire receiving groove 13 of the clamp body 11, and the clamping body 31 is hingedly connected to the clamp body 11 by a pin 38. Further, a hook portion 34 is provided at the other end of the tightening body 31.
is provided so that a stopper 42 of an eye bolt 41, which will be described later, can be hooked thereto. Furthermore,
A mounting portion 15 for the coil springs 51 is formed in the clamp body 31, and two coil springs 5 can be attached to the clamp body 31.
A space 17 is formed, which is divided into two spaces 17 that can be provided in parallel. In order to attach the coil spring 51, the eye bolt 41 is inserted into the hole 1 of the attachment part 15.
6 so as to be slidable therethrough. The eyebolt 41 is threaded at one end and has a spring catch washer 48 adjustably mounted thereon by a nut 52. Also, a pin 43 is provided at the other end of the eye bolt 41.
A stopper fitting 42 is pivotally mounted. Coil springs 51 are provided surrounding these eye bolts 41, with one end engaging the spring receiving washer 48 and the other end engaging the clamp body 11.

A space 17 in the clamp body 11 is provided to pre-compress the pair of coil springs 51 when attaching the electric wire.
Flange portions 18 are provided facing the mounting portion 15 and protruding from each other. This empty space 17
A frame plate member 55 having a bolt 58 is provided to be engaged with the flange portion 18 at the flange portion 56, and the tip of the bolt 58 is engaged so as to press the spring receiver washer 48. Therefore, by tightening the bolt 58 screwed to the frame plate member 55, the spring receiver washer 48 is pressed, and the coil spring 51 is compressed.

Electric wire gripping section 10 of this invention configured in this way
is used to construct a multi-conductor spacer 1 by inserting the end of the spacer 2 into the groove 12 of the clamp body 11 and connecting with the bolt 21. When attaching the electric wire, tighten the bolt 58 screwed to the frame plate member 55 whose flange portion 56 is engaged with the flange portion 18 of the hollow space 17 of the clamp body 11, as shown in the figure. The pair of coil springs 51 are compressed in advance by the tips of the coil springs 58 via the spring receiving washers 48. In this state where the coil spring 51 is compressed, the stopper 42 is removed from the hook 34 of the clamping body 31, and the clamping body 31 is attached to the pin 38.
It pivots around and opens so that the wire can be received in the wire receiving grooves 13 and 32 of the clamp body 11 and the clamping body 31. Place the wire in the wire receiving groove 1
3, 32, tighten the tightening body 31 with pin 3.
8 to close it, and tighten the stopper 42 to pin 4.
3 pivots around the latching part 34 of the clamping body 31.
Hang on. Next, by loosening the bolt 58 that compresses the coil spring 51, the coil spring 51
The spring force is applied to the stopper 34 via the eye bolt 41.
Since the stopper 34 is tightened and tightened against the hook part 34 by the force of the electric wire, the electric wire can be firmly held by the clamp body 11 and the tightening body 31. On the other hand, since the tip of the bolt 58 separates from the spring receiver washer 48, the bolt 58 and the frame plate member 55 can be removed from the clamp body 11.
It can be reused for the wire gripping part of another spacer. Further, the spring force of the coil spring 51 can be adjusted as necessary using the nut 52 of the eye bolt 41.

If the wire gripping part of the multi-conductor spacer of this invention is used, it can be made smaller by using two coil springs, and the overall shape can be made compact, which prevents the occurrence of corona discharge and makes it possible to It does not interfere with the passing of the vehicle over the air, and eliminates the need for long bolts to compress the coil spring.By using the frame plate member and short bolts, the coil spring can be pre-compressed when installing the electric wire, making it easy to install. This multi-conductor material can be removed from the clamp body and reused for the wire gripping part of another spacer later on, and is easy to work with and easy to install, reduces work time, and eliminates redundant and unnecessary materials. A wire gripping part of the spacer for use is obtained.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional front view of one of the wire gripping parts of the multi-conductor spacer of this invention, and Fig.
It is a bottom view of the electric wire grip part of a figure. In the figure, 10... Wire gripping part, 11... Clamp body, 13, 32... Wire receiving groove, 31... Tightening body, 34... Latching part, 41... Eye bolt, 4
2... Stopper, 48... Spring receiver washer, 51...
Coil spring, 55...frame plate member, 58...bolt.

Claims (1)

[Scope of utility model registration request] In a multi-conductor spacer in which wire gripping parts are provided at both ends of the spacer, a wire receiving groove 13 is provided at one end.
A clamp body 11 is provided with a clamp body 11, and a clamping body 3 is hinged to the clamp body at one end and has a wire receiving groove 32 corresponding to the wire receiving groove of the clamp body.
1. A spring washer 4 is slidably arranged in parallel to the mounting portion 15 of the clamp body in a direction parallel to the spacer 2 and is attached to one end of the spring washer 4.
A pair of eyebolts 41 each having a stopper 42 pivoted at the other end so as to be able to be latched onto the latching portion 34 of the tightening body 31; A pair of coil springs 51 are locked to the mounting portion of the main body, and a bolt 58 whose tip can be engaged with the spring receiving washer provided on the eye bolt is screwed, and the coil springs are arranged side by side. An electric wire gripping part of a multi-conductor spacer comprising a frame plate member 55 which is removably engaged and held by flange parts 18 provided facing each other in a space partitioned into a clamp body.