JPH034119Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a suspension fitting, particularly a so-called cantilever suspension clamp for electric wires.

Suspension clamps for suspending insulated wires, that is, wires coated with insulating material, have conventionally used clamps made of materials such as cast aluminum or malleable cast iron. A straight wire was placed on top of the wire, the other wire was placed over it, and the wire was tightened and held. Since the covering is an insulating material, there is no electrical problem, so no particular consideration has been given to the mechanical protection of the covering when it is directly attached.

However, directly holding the wire with a metal clamp has a high risk of causing mechanical damage to the sheathing due to vibration of the wire and other factors. The method of protecting electrical wires from mechanical damage by wrapping tape around them has the drawbacks of poor workability and susceptibility to vibration.

Therefore, in order to protect the coating, it has been considered to provide a collar on the wire receiving portion. The collar is integrated with the clamp to reduce the hassle of installing it one by one. However, considering that construction work is often carried out to replace electric wires with wires of different diameters,
There are also problems with the integrated structure.

Therefore, the purpose of this invention is to provide a suspension clamp that is convenient for wire re-stretching work and can prevent mechanical damage to wires. It consists of a holding part which is rotatably hinged at one end, the other end of the wire receiving part is extended and suspended from a fixed part, and the other end of the holding part is formed in a notch shape. Then, using a so-called cantilever suspension clamp that is tightened to the wire receiving part by a bolt that engages with this notch, a collar made of soft resin is attached to the wire receiving part and the holding part so that it can be attached and removed, respectively. and a presser section, and a means for preventing the collar from falling off is provided, and the presser section cooperates with the wire receiving section to grip the electric wire,
The falling-off prevention means is characterized in that it includes a mounting shaft that is provided protruding from each collar, passes through a mounting hole installed in the wire receiving portion or the holding portion, and is provided with a retainer.

The invention will be explained below with reference to the illustrated embodiments.

As shown in FIGS. 1 and 2, the suspension clamp has a main body 1 with a wire receiving portion 1a at the bottom, and the approximately semi-cylindrical receiving portion 1a receives the wire by a hinge pin 2 in cooperation with the wire receiving portion. The holding part 3 to be gripped is hinged, an electric wire (not shown) is received in the receiving part 1a, the electric wire is held between the holding part 3, and the holding part 3 is tightened to the main body 1 with bolts 4 and nuts 5. Therefore, the electric wire is supported in the air by holding the electric wire and connecting an insulator fitting (not shown) for suspension to the two forked portions 1b of the upper part of the main body 1 with a bolt 6 and a nut 7. be. As shown in the figure, the bolt 4 for tightening the main body 1 and the presser part 3 is installed through a long hole provided in the main body 1 in the vertical direction, and is attached to the top of the presser part 3 in the vertical direction. Therefore, by loosening the nut 5, the bolt 4 is moved upward, and the bolt 4 and the holding part 3 are engaged with each other. It is configured such that the presser foot 3 can be rotated by releasing the presser foot 3. As a result, even when the holding part 3 is rotated, all the members do not separate from each other.

In this invention, the collar 8 is attached to the wire receiving part 1a,
8', and a collar made of, for example, soft resin is interposed between the electric wire and the metal part of the clamp. The collars 8, 8' are divided into two parts, and one half of the collar 8' is detachably attached to the receiving part 1a, and the other half of the collar 8 is detachably attached to the holding part 3. That is, as shown by collar 8 in FIG. It can be fitted into the provided mounting hole 10 and 10' of the receiving part 1a, respectively, and can be mounted to the clamp body and the holding part by applying an O-ring 11 to the circumferential groove provided at the tip of the mounting shaft. O-ring 1
1 and insert the mounting shaft 9,
The collar can be removed by removing 9'. In this way, the collar cannot be removed when installed. In addition, in the above embodiment, the attachment holes 10, 1 are used as this drop-off prevention means.
0', the mounting shafts 9, 9', and the O-ring 11 are provided, but the present invention is not limited to this. It may also be attached by, etc.

According to this invention, a cantilever suspension clamp having the above structure is used as a suspension fitting, and a collar made of soft resin is provided on each wire receiving portion and holding portion so as to be attachable and detachable, and Equipped with a means to prevent the above collar from falling off.
The holding part grips the electric wire in cooperation with the wire receiving part, and the falling-off prevention means is provided in a protruding manner on each collar and penetrates through a mounting hole installed in the wire receiving part or the holding part, and is prevented from falling out. The built-in mounting shaft prevents damage to the wire sheathing when gripping the wire, and even if the wire sheathing is damaged, the insulating properties of the collar maintain the insulation between the clamp body and the wire. In addition to having the effect of a collar, it is easy to replace even if the collar is damaged due to vibration, etc., and when replacing wires with different diameters, it is easy to change only the collar according to the wire diameter. Since the suspension clamp can be replaced with another one, the suspension clamp can be applied to a wide range of wire sizes, and construction is simple and economical.Furthermore, because of the cantilever suspension clamp of the above configuration, each member can be separated from each other. Therefore, even when the electric wire is restrung or the collar is replaced, the suspension fittings can remain attached, and each member can be held in that state.
It has many benefits, including extremely good workability at high places.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the suspension fitting of this invention, FIG. 2 is a side view as seen in the direction of the arrow in FIG. 1, and FIG. 3 is a perspective view of the collar (half). 1... Clamp body, 2... Hinge pin, 3...
Presser part, 4... Bolt, 5... Nut, 6... Kotta bolt, 7... Nut, 8, 8'... Collar,
9, 9'...Mounting shaft, 10,10'...Mounting hole, 1
1...O-ring.

Claims (1)

[Scope of utility model registration request] It consists of a wire receiving part with a half-split configuration, and a holding part whose one end is rotatably hinged to one end of the wire receiving part, and the other end of the wire receiving part is extended and suspended from a fixed part. and the other end of the holding part is formed in a notch shape, and the suspension fitting is tightened to the wire receiving part by a bolt that engages with the notch, and the hanging fitting is attached to the wire receiving part and the holding part,
A removable collar made of soft resin is provided for each of the wire receiving part and the holding part, and a means for preventing the collar from falling off is provided, and the holding part cooperates with the wire receiving part to grip the electric wire, The suspension fitting is characterized in that the drop-off prevention means includes a mounting shaft that is provided protrudingly from each collar, passes through a mounting hole installed in the wire receiving portion or the holding portion, and is provided with a retainer.