JP2001105934A - Terminal anchoring device for insulated trolley wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal anchoring device for insulated trolley wires, capable of anchoring a plurality of insulating trolley wires in package and reducing a placement space for the insulating trolley wires. SOLUTION: An anchoring bracket 6 for holding terminals of a plurality of the insulated trolley wires 2 in package is provide to be movable with respect to a fixing system. The anchoring bracket 6 serves for anchoring to the fixing system via a spring 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulated trolley wire terminal terminating apparatus for terminating a terminal portion of an insulated trolley wire.

[0002]

2. Description of the Related Art An insulated trolley wire is used as a power supply line to mobile electric equipment such as a traveling vehicle and a crane.

[0003] As the insulated trolley wire, a single wire type in which one trolley wire is covered with one insulating cover and a multi-wire type in which a plurality of trolley wires are inserted in the insulating cover are used. Have been.

[0004] Since a multi-wire insulated trolley wire is not suitable for use outdoors, a plurality of single-wire insulated trolley wires may be used outdoors in a row.

[0005] The end of the insulated trolley wire is tensioned to keep the insulated trolley wire from being bent so that traveling electric power can be supplied to mobile electric equipment.

For example, Japanese Utility Model Laid-Open Publication No. 61-93334 discloses a multi-wire insulated trolley wire anchoring device in which an insulated trolley wire is attached to a terminal tightening insulator and the terminal tightening insulator is tightened via a compression coil spring. It is shown to be fixed to construction materials.

Further, as a single wire type insulation trolley wire anchoring device, Japanese Utility Model Laid-Open Publication No. 52-25291 discloses a method in which a spring is used to tighten the insulation between the insulator at the end of the insulation trolley wire and the building material. Japanese Patent Application Laid-Open No. Sho 56-138022 discloses that a tightening insulator to which an insulating trolley wire is fixed is urged in a predetermined direction by a bracket fixed to a building and a bolt and a spring fixed to the bracket. It is shown to be.

[0008]

By the way, the conventional single-wire insulated trolley wire anchoring device as described above is of a type in which the anchoring device is attached to each insulated trolley wire.

However, if the anchoring device is attached to each of the insulated trolley wires, it is necessary to increase the space of the terminal portion. When a plurality of insulated trolley wires are arranged and laid, the pitch between the insulated trolley wires is restricted. There is a problem that is.

For this reason, it is difficult to reduce the space for laying the insulating trolley wire, and there is a problem that the miniaturization of the power supply device is restricted.

Japanese Patent Publication No. Sho 61-30937 discloses a terminal device of an insulating trolley for supplying power to an end of an insulating trolley wire.
No. 8 discloses a hanger for collectively supporting a plurality of insulated trolley wires laid in parallel on rails or the like.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, to enable a plurality of insulated trolley wires to be collectively terminated, and to reduce the installation space for the insulated trolley wires. An object of the present invention is to provide an anchoring device.

[0013]

In order to achieve the above object, according to the present invention, there is provided an insulated trolley wire terminal anchoring device for anchoring a plurality of aligned insulated trolley wire ends to a fixed system. An insulated trolley provided with a holding bracket for holding the terminals of a plurality of insulated trolley wires collectively with respect to the fixed system, and holding the holding bracket to the fixed system via a spring. It is a terminal termination device for lines.

According to a second aspect of the present invention, there is provided an end terminal for an insulated trolley wire according to the first aspect, wherein fixing members for individually holding end portions of the insulated trolley wire are arranged in a staggered manner on the end fitting.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1A is a front view of the terminal pulling device for an insulated trolley wire of the present invention, and FIG. 1B is a plan view of the terminal pulling device for an insulated trolley wire of the present invention.

As shown in the drawing, a plurality of (four, but not limited to, four in the drawing) aligned insulating trolley wires 2 are arranged by a hanger 4 provided on a rail 3.
Are supported and mounted so as to be movable along the rails 3, and an end cover 5 is attached to an end of each of the insulating trolley wires 2 to be insulated.

An insulated trolley wire terminal anchoring device 1 is a device for anchoring the ends of the insulated trolley wires 2 to a fixed system such as a rail, and holds the terminals of a plurality of insulated trolley wires 2 at a time. At the same time, it is roughly constituted by a retaining bracket 6 movably provided in a hole 20 formed in the rail 3 and retaining means 7 for retaining the retaining bracket 6 to a fixed system.

First, the retaining bracket 6 has an L-shaped fixing surface 9a for fixing the insulated trolley wire 2, and a retaining surface 9b for retaining the retaining bracket 6 to a fixing system. And a fixing member 21 for fixing the insulating trolley wire 2 to the fixing surface 9 a of the holding plate 9.

The fixing member 21 includes a holding metal member 11 attached to the holding plate 9 by bolts 10 in two stages in a front and rear direction in a staggered manner, and a locking pin for fixing the terminal portion of the insulating trolley wire 2 to the holding metal member 11. And 12.

The gripper 11 has a structure in which grooves 11a for accommodating the insulating trolley wire 2 and spacers 11b are provided alternately, and the grooves 11a and the spacers 11b are integrated by bolts 22. The insulating trolley wire 2 is accommodated in the insulating cover 2a, and the locking pin 12 is inserted into the pin insertion hole and the gripping metal 11 to fix the insulating trolley wire 2 in a staggered manner.

That is, the groove 11a of the gripping metal 11 installed on the terminal side, which is a latter stage in FIG.
The insulated trolley wires 2 of the third and third stages (odd-numbered stages) are accommodated and fixed by the locking pins 12, and the groove 11a of the gripping metal fitting 11 installed at the front stage has two stages from the upper side in the figure. The first and fourth (even-numbered) insulated trolley wires 2 are accommodated and fixed by locking pins 12.

It is necessary to provide an insulation distance between the locking pins 12 for electrical safety. However, by staggering the locking pins 12, the pitch between the insulating trolley wires 2 can be reduced. Things.

On the other hand, the retaining means 7 fixes the holding plate 9 with one end of the long bolt 14 inserted across the fixing bracket 13 attached to the fixing system and the retaining surface 9 b of the holding plate 9. Nut 15 and long bolt 14
At the other end, a nut 17 for fixing the fixing bracket 13 and the long bolt 14 via a spring 16 is provided.

Since the retaining bracket 6 is attached to the fixed bracket 13 via the spring 16 by the long bolt 14, the retaining bracket 6 and the retaining bracket 6 are collectively held by the tension of the spring 16. The insulated trolley wire 2 is urged toward the fixed bracket 13 (left side in the figure).

Next, the operation of the present invention will be described.

The end portions of the plurality of insulated trolley wires 2 which are aligned are respectively housed in the grooves 11a of the holding metal fittings 11 which are attached to the fixing surface 9a of the holding plate 9 in two stages in a staggered manner. Insulation cover 2a for wire 2 and gripping bracket 1
A plurality of insulated trolley wires 2 are collectively fixed to the retaining bracket 6 by inserting a locking pin 12 through the first fixing trolley wire 1.

The long bolt 14 is inserted through the holding surface 9b of the holding plate 9 of the holding fixture 6 to which the insulating trolley wire 2 is fixed and the fixing bracket 13 of the fixed system, and the long bolt 14 and the holding surface 9b of the holding plate 9 are fixed. Are fixed by a nut 15, and the long bolt 14 and the fixing bracket 13 are fixed by a nut 17 via a spring 16.

The tensioning of the plurality of insulating trolley wires 2 fixed to the retaining metal fittings 6 is performed by tightening the retaining metal fittings 6 with the springs 16, and the insulating trolley wires 2 are laid straight.

In this manner, the plurality of insulated trolley wires 2 arranged in a line are fixed to the holding fixture 6 at a time, and the
Since the spring 16 is configured to apply tension to the
A plurality of insulated trolley wires 2 can be collectively retained, and the space at the end of the insulated trolley wire 2 can be saved.

Further, since the fixing members 21 are arranged in a staggered manner, the pitch between the insulating trolley wires 2 can be reduced, and the space for laying the insulating trolley wires 2 can be reduced.

The means for fixing the insulating trolley wire 2 to the grip metal 11 is not limited to the locking pin 12, but may be a fixing means using bolts or a fixing means using a hook or the like.

[0033]

In summary, according to the present invention, a plurality of insulated trolley wires aligned in a lump are collectively fixed to a holding bracket, and the plurality of insulated trolley wires are collectively fixed by holding the holding bracket. Can be retained.

Since a plurality of aligned insulating trolley wires can be collectively pulled, space saving at the end of the insulating trolley wire can be achieved.

Further, since the pitch between the insulating trolley wires can be reduced by staggering the fixing members, the space for laying the insulating trolley wires can be reduced, and the size of the power supply device can be reduced.

[Brief description of the drawings]

FIG. 1A is a front view of an insulated trolley wire terminal anchoring device of the present invention, and FIG. 1B is a plan view of the insulated trolley wire terminal anchoring device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Termination device for insulated trolley wire 2 Insulated trolley wire 6 Retaining fitting 7 Retaining means 11 Gripping fitting 12 Locking pin 16 Spring 21 Fixing material

Claims (2)

[Claims] 1. An insulated trolley wire terminal anchoring device for anchoring a plurality of aligned insulated trolley wire ends to a fixed system, wherein a plurality of insulated trolley wire ends are collectively held. A terminal anchoring device for an insulated trolley wire, wherein a retaining bracket is provided movably with respect to a fixed system, and the retaining bracket is retained on the fixed system via a spring. 2. A fixing member for individually holding end portions of an insulated trolley wire is arranged in a zigzag manner on a holding fitting.
A terminal anchoring device for an insulated trolley wire according to claim 1.