JPS6316270Y2 - - 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 proposed, and are being used. Such a spring type clamp has a clamp body and a clamping body that is hinged to the clamp body, and the wire is held between the clamp body and the clamping body by one spring that projects perpendicularly to the clamp body or the clamping body. It is held between the clamp body and the tightening body by the spring force,
A locking member extending from the spring receiver is locked to the tightening body. An example of such a spring type clamp is shown in, for example, Japanese Utility Model Application No. 148476/1983. However, in such a spring type clamp, the spring constant of the coil spring used is small, and the repulsive force transmission mechanism such as the latching member and the coil spring protruding perpendicularly from the clamp body are unstable.
In addition, the mounting direction of the coil spring matches the twisting direction of the twist test, and the coil spring and spring holder protruding from the clamp body cause corona discharge and impede the passage of the spacecraft. There are some shortcomings.

Therefore, the purpose of this invention is to eliminate such drawbacks of the conventional method in a multi-conductor spacer in which a wire gripping part is provided at the end of the spacer, and in which a clamping part is hinged at one end to the clamp body. The other end of the body is tensioned and fixed by a pair of coil springs provided in a direction parallel to the spacing body, and the coil springs are made smaller as a pair and the part protruding from the clamp body is eliminated. To provide an electric wire gripping part of a multi-conductor spacer that does not require special tools, can be easily attached to electric wires, and has an overall compact noiseless structure.

According to this invention, the wire gripping portion of the multi-conductor spacer includes a clamp body having a wire receiving groove, and a clamping body that is hinged to the clamp body and has a wire receiving groove corresponding to the wire receiving groove of the clamp body. and a pair of metal fittings which are slidably arranged in parallel to the clamp body in a direction parallel to the spacing body and have a spring catch washer at one end and a locking fitting pivotally mounted at the other end so as to be latched to the clamping body. It includes a spring eyebolt, and a pair of coil springs that are provided surrounding the spring eyebolt and have one end locked to the spring receiving washer of the spring eyebolt and the other end locked to the clamp body.

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, partially in section, one example of a two-conductor spacer in which wire gripping portions of this invention are provided at both ends of a spacer. Of course,
The wire gripping portion of this invention can be used not only for a two-conductor spacer but also for a multi-conductor spacer such as a four-conductor or four-conductor spacer.

As shown in the figure, the wire gripping portions 10 of this invention are attached to both ends of a spacer 2 in the form of an elongated plate, for example. Therefore, depending on the shape of the spacer 2, the spacer 1 can be configured for two conductors, four conductors, or six conductors. The wire gripping part 10 of this invention has a groove 12 at one end for receiving the spacer 2.
However, the clamp body 11 is provided with a wire receiving groove 13 at the other end, and a corresponding one is hinged to the clamp body 11 by a pin 38 and cooperates with the wire receiving groove 13 of the clamp body 11 to hold the electric wire. It is mainly composed of a tightening body 31 having a wire receiving groove 32.

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, for example, aluminum alloy casting. The clamp body 11 is provided with a groove 12 at one end for receiving the spacer 2, and the spacer 2 wrapped around the groove 12.
A hole 19 for a bolt 21 to be engaged with the hole 4 is provided, and a bush 22 and a coil spring 23 are provided between the bolt 21 and the hole 19, so that the spacer 2 and the clamp body 11 are provided with a bush 22 and a coil spring 23. This ensures continuity and prevents rattling. Further, a wire receiving groove 13 is provided at the other end of the clamp body 11.
is provided in the wire receiving groove 32 of the clamping body 31.
It is adapted to grip an electric wire (not shown) in cooperation with the 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 hooking portion 34 is provided at the other end of the tightening body 31, and an eye bolt 41, which will be described later,
The stopper fitting 42 can be latched.
Furthermore, a mounting portion 15 for a coil spring 51 is formed in the clamp body 31, and two coil springs 5 can be attached to each other.
1 can be provided in parallel. An eye bolt 41 is slidably provided through the hole 16 in the mounting portion 15 for mounting the coil spring 51. The eyebolt 41 is threaded at one end and has a spring catch washer 48 adjustably mounted thereon by a nut 52. Also, eye bolt 4
A stopper 42 is pivotally attached to the other end of 1 by a pin 43. 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. Further, it is preferable that the eye bolt 41 is provided with a sleeve 44 made of plastic, for example, to prevent the coil spring 51 from wobbling.

Further, the bolt 21 for attaching the spacer 2 to the clamp body 11 may be integrally formed as shown in the figure, or may be formed in three separate parts: the sleeve, the bolt, and the washer. Therefore, it can also be fixed to the clamp body 11.

Electric wire gripping section 10 of this invention configured in this way
The ends of the spacer 2 are inserted into the grooves 12 of the clamp body 11 and connected by bolts 21 to form the spacer 1 for multiple conductors. The electric wire can be received in the wire receiving grooves 13 and 32 of the clamp body 11 and the clamp body 31 by pivoting the clamp body 31 around the pin 38 and opening it when the stopper 42 is removed from the hooking part 34 of the clamp body 31. I can do it.
Once the wires are received in the wire receiving grooves 13 and 32, the clamping body 31 is pivoted around the pin 38 to close it, and the stopper 42 of the eyebolt 41 is pivoted from the chain line position to the latching part 34 of the clamping body 31. By being hooked, the electric wire can be clamped and held between the clamp body 11 and the clamping body 31. The tightening force can be adjusted as appropriate using the nut 52 of the eye bolt 41. If necessary, the spring receiver washer 48 can be secured to the clamp body 11 using a bolt 55.

According to the electric wire gripping part of the multi-conductor spacer of this invention, it can be made smaller by using two coil springs, and it can be placed close to the center plane of the clamp in a direction parallel to the spacer, so that it protrudes. By eliminating the parts, the entire outer surface can be shaped like a drum, which prevents the occurrence of corona discharge, and also makes it easier for the spacecraft to cross over without any obstructions, and a hinge mechanism is provided at the repulsive force transmission part. This eliminates the need for special tools during construction and makes it easier to attach to the wire, and by increasing the width of the gripping part and the relief at the clamp mouth, it reduces stress during knitting, twisting, and vibration of the wire. A compact, noiseless structure without radio wave interference or rattling of various parts can be achieved, and the structure eliminates the need for a conventionally required housing, making it possible to easily manufacture the device in a small and lightweight manner. Furthermore, the same structure can be applied to various wire sizes.

FIG. 3 shows an example of a wire gripping portion 10' that is slightly angled with respect to the mounting of the spacer.
It is particularly suitable for use as a multi-conductor spacer.

[Brief explanation of drawings]

Figure 1 is a partially sectional front view showing an example of a multi-conductor spacer using the wire gripping part of this invention, and Figure 2 is a plan view of the left wire gripping part of the multi-conductor spacer in Figure 1. FIG. 3 is a bottom view showing the right wire gripping portion, and FIG. 3 is a partially sectional front view showing another example of the wire gripping portion of this invention. In the figure, 10, 10'... wire gripping part, 11...
Clamp body, 13, 32...Wire receiving groove, 31
... Tightening body, 34 ... Latching part, 41 ... Eye bolt, 42 ... Stop fitting, 48 ... Spring receiver washer,
51...Coil spring.

Claims (1)

[Scope of utility model registration request] A multi-conductor spacer in which wire gripping portions are provided at both ends of the spacer, a clamp body 11 having a wire receiving groove 13, a wire receiver hinged to the clamp body at one end and corresponding to the wire receiving groove of the clamp body. A clamping body 31 having a groove 32 is slidably arranged in parallel with the mounting portion 15 of the clamp body in a direction parallel to the spacing body 2, a spring receiving washer 48 is provided at one end, and the clamping body 31 is latched at the other end. A pair of eye bolts 41 having a stopper 42 pivotally mounted so as to be able to be latched to the clamp body 34; A wire gripping part of a multi-conductor spacer equipped with a coil spring 51.