JPS5914270Y2 - insulated trolley - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an insulated trolley, particularly a multi-wire insulated trolley having two or more conductors.

Recently, insulated trolleys have come to be used in various fields as power supply lines for cranes, hoists, etc., replacing bare trolley wires.

However, the conventional insulated trolley is a one-phase independent type, and in the case of three-phase power supply, it is necessary to install three insulated trolleys.

As a result, the number of hangers increases, resulting in poor installation efficiency.

On the other hand, there has been a proposal for a so-called three-phase all-insulated trolley, in which three conductors are covered with insulating material at predetermined intervals.
This structure is flat as a whole, and has the disadvantage that it complicates the installation process and is prone to shaking in strong winds.

An object of the present invention is to provide a multi-wire insulated trolley which can eliminate the above-mentioned drawbacks of conventional workability and increase work efficiency.

The following explanation will be given based on the drawings of the embodiments.The conventional product covers one conductor 4 with an insulator 5 as shown in FIG. 2, but the present invention covers two or more conductors as shown in FIG. A conductor 1 and two Metsenger wires made of steel wires or stranded steel wires, that is, branch wires 3, are arranged in parallel in the longitudinal direction with the conductor 1 in the center and the branch wires 3 on both sides thereof, and these are simultaneously covered with an insulator 2. It has a similar structure.

Note that 1a is a current collector contact surface facing from the opening 2a of the insulator 2.

This type of multi-wire insulated trolley is made by extruding and covering the required number of conductors all at once, and when installing, the 3 branch wires on both sides are
The terminal is held in place and tension is applied to the structure.

Therefore, the conductor 1 is supported through the insulator 2, and since no tension is applied to each conductor 1, there is no disconnection of the conductor 1, and even if there are multiple wires, the terminal can be tied only by holding two branch wires 3. Yes, improving work efficiency.

As described above, according to the insulated trolley of the present invention, tension is applied to the branch wires 3 on both sides to construct the trolley, so there is no disconnection of the conductor 1, and the vibration can be reduced in response to strong winds.

2 Since no tension is applied to the conductor 1, the cross-sectional area can be reduced.

3. Compared to conventional products in which each phase is erected one at a time, it is possible to erect them all at once, which improves work efficiency and eliminates or significantly reduces the need for special support devices.

4. Since it is a multi-wire integrated type, the shape and dimensions can be reduced, and the area occupied during construction is reduced.

It has the following effects.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing an embodiment of the multi-wire insulated I-rolly of the present invention. FIG. 2 shows a conventional one-phase independent insulated trolley. 1: Conductor, 2: Insulator, 3: Branch wire.

Claims (1)

[Scope of utility model registration request] Conductors of 2 or more wires are covered continuously with insulating material except for a part,
In an integrated insulated troneau with an insulator between the conductors,
An insulated trolley characterized by having a pair of metsenger wires buried in the longitudinal direction on both sides of the insulating material.