JPS5818430Y2 - Feeder wire support fittings - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a feeder wire support fitting suitable for use inside a tunnel.

Conventionally, in tunnels, if there is an electrically safe distance between the feeder line and the tunnel wall, making the distance between the two as narrow as possible simplifies tunnel excavation work and saves labor. .

However, with the conventional band type, in order to facilitate the work of supporting the feeder wire, it is necessary to always provide a certain distance between the feeder wire and the tunnel wall, and even a relatively large distance. There is a drawback that the distance between the tunnel wall and the tunnel wall becomes too large.

The present invention was devised in view of this, and will be described below based on examples.

In the figure, 1 is a fixed band, and B is a support rod installed on the tunnel ceiling wall so as to be approximately perpendicular to the tunnel traveling direction.
It is to be fixed at

This fixing band 1 consists of two band pieces that are screwed together at one end with a shaft P and can be opened and closed, and holds the support rod B using semicircular holding parts 1a, 1a formed on each band piece. The open ends of both band pieces are tied together, a fixing bolt 2 is passed through the fixing bolt 2, and the fixing band 1 is securely attached to the support rod by tightening the nut threaded onto the fixing bolt.

A binding material 3 is provided protruding from the upper surface of the upper band piece of the fixing band 1, and a metal fitting 4 is integrally provided on the upper part of the binding material 3 by welding or the like to support the electric wire K from below.

This receiver can be used to attach one (Fig. 4) or two feeder wires to the metal fitting 4.
As shown in the figure, the belt-shaped metal plate is bent into a deep dish shape so that two strips arranged in parallel can be supported across both sides from the bottom surface, and the bottom surface is placed in the center with respect to the longitudinal direction of the feeder wire. (See Figure 3 = This will prevent the feeder wire from being damaged by the corners of the bracket) and curve it so that both ends hang down, and then pull both ends outward. It is stretched and bent into a hook shape, and retaining portions 4a and 4b are formed in the shape of fork ends.

The receiver is provided on the upper part of the metal fitting 4, and the receiver is provided with a holding metal fitting 5 which cooperates with the metal fitting.

This presser metal fitting has a receiver that covers the upper opening of the metal fitting.
In addition, the hook shapes that engage with the retaining parts 4 a and 4 b of the metal fittings are bent at both ends to form wire retaining parts 5 a and 5 b, and the retaining parts 4 a and 4 a of the metal fittings are fitted into each other. After that, insert the shaft 6 or bolt between 4a and 5a,
In addition, a bolt 7 is inserted between the engaging portion 4b and the line maintenance 5b so that both 4
．． 5 are made into one body, and the retainer is made of metal fitting 4 and the holding metal fitting 5 are held together as shown in FIG.
They are made to mesh with each other so that the parts b fit into each other.

According to the present invention, a deep dish-shaped receiver with an open upper part is integrally provided with a metal fitting 4 protruding from a fixing band 1 which is fixed to a support rod, so that it can be received from the bottom of a stretched feeder wire. It is easy to insert the metal fitting as if scooping it, and since this receiver can be covered like a lid by inserting the holding metal fitting from the side into the upper part of the metal fitting, the distance between it and the tunnel ceiling can be kept small.

That is, since it is designed to be covered from the side, the work can be done easily even if the distance between the feeder line and the tunnel wall is narrow.

In addition, both ends of the presser metal fitting 5 serving as the lid not only engage with the engaging portions 4 a and 4 b of the receiver metal fitting 4, but also the retaining portions 4 a and 4 b of the receiver metal fitting 4 engage with the retaining portions 4 a and 4 b of the receiver metal fitting. Line maintenance 5 of metal fittings 5
Since the presser metal fittings are in a state where they are sandwiched, the presser metal fittings are tightly fitted and fixed, so that the presser metal fittings can be prevented from falling off.

Furthermore, as mentioned above, the feeder wire is completely fitted into the deep dish shape, so together with the lid of the holding bracket, the feeder wire does not have to be pulled out, and the wire extension work can be carried out smoothly. There is an advantage that by loosening the fixing bolt 2, the entire support fitting can be slid on the support rod and moved from side to side.

[Brief explanation of drawings]

FIG. 1 is an overall view, FIG. 2 is a front view, FIG. 3 is a side view, and FIG. 4 is a front view showing a metal fitting for a single feeder wire. 1...Fixing band, 2...Fixing bolt, 3...Binding material, 4...Bracket is metal fitting, 4
a...Engaging part, 4b...Engaging part, 5.
...Presser metal fitting, 5a... Line maintenance, 5b...
...Track maintenance, 6...Axle, 7...Bolt, P...Axle, B...Support rod (direction perpendicular to the tunnel track) of).

Claims (1)

[Scope of Claim for Utility Model Registration] A fixing band 1 that is movably fixed to a support rod B installed in a direction intersecting the railroad tracks in a tunnel, has an opening at the top and is fixed on both sides. A deep dish-shaped receiver having portions 4 a and 4 b formed on the lower surface and both sides of the feeder wire is provided with a metal fitting 4 integrally with the fixing band 1;
On the top of the metal fitting 4, this receiver has a holding metal fitting 5 which cooperates with this metal fitting to hold down the feeder wire, and at both ends thereof, the said receiver has an engaging part 4a of the metal fitting 4. 4b and the line maintenance 5 that fits and engages in a mutually sandwiched state.
a and 5 b are provided, and the above-mentioned receiver has an axis between the metal fitting and the holding metal fitting,
A wire support fitting that can be attached and detached using bolts, etc.