JPH09298817A - Metal fittings for hanging sheave - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make easier the work of catching a supporting line to the supporting line fixing metal fittings and to prevent an existing cable from contacting to a communication cable under installation, by installing a holding member for temporarily holding a plate in an open state. SOLUTION: Only a supporting line among communication capables hung to a sheave 4 for cable stringing work is clamped between a seat plate 10 and a push plate 11 and tightened with supporting line fixing bolts 12, 12 for attaching the supporting line with the seat plate 10 and the push plate 11. At this point, the bottom end of the push plate 11 is pulled upward with a holding member 16, so that the lower gap between the seat plate 10 and the push plate 11 is held in a widened state, and thus the supporting line can be caught as it is by a supporting line fixing metal fittings 7. In this way, the communication cable can be easily attached to the supporting line fixing metal fittings, and contacting of communication cable to existing cable can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool used for an overhead wire of a cable, and more particularly to a metal wheel hanging metal fitting for hanging a gold wire for a cable overhead wire.

[0002]

2. Description of the Related Art When a communication cable supported by a telephone pole via a suspension metal fitting is overhead-extended, in order to continuously and stably extend the communication cable without contacting an obstacle or the like on the ground. Generally, a method of extending a wire while suspending a communication cable using a wire car for cable overhead is generally used.

As shown in FIG. 4, in this construction method, a pulling device 33 such as a winch is provided with a feeding end of a communication cable 31 wound around a rotatably supported drum 30 via a tow rope 32 made of a wire or the like. The communication cable 31 is hung over the wire car 36 for cable overhead wire supported by the electric pole 35 through the hanging metal fitting 34, and the wire is extended on the wire car 36 for cable overhead wire. The communication cable 31 is attached to the hanging bracket 34 so as to be transferred to the hanging bracket 34.

Hanging bracket 34 used in this construction method
Is a support wire 37 of the communication cable 31, as shown in FIG.
It is composed of a support wire fixing metal fitting 38 for sandwiching and fixing the support wire fixing metal fitting 38 and a band 39 for fixing the support wire fixing metal fitting 38 to the electric pole 35. It guides the communication cable 31 which is hung from the hanging bracket 34 and extended.

According to this wire drawing method, the communication cable 31
The communication cable 31 is continuously and stably extended in the air because the payout end is towed while being hung over the cable overhead wire wheel 36.

[0006]

However, the support wire fixing metal fitting 38 is for fixing the support wire 37 by sandwiching the support wire 37 of the communication cable 31 between a pair of plates and tightening these plates with bolts 41. Since each plate is provided with a groove or a protrusion for preventing the support wire 37 from falling off, when the support wire 37 is transferred to the support wire fixing bracket 38, the distance between these plates can be reduced with one hand. Therefore, it is difficult to insert the support wire 37, which is tensioned by its own weight or the like, into the support wire fixing metal fitting 28 while lifting it with one hand.

Further, as shown in FIG. 3, the existing cable 4
When the communication cable 31 is crossed over the upper part of the second line, the cable-carrying wire wheel 36 is arranged directly above the existing support wire fixing bracket 43, so that the communication cable 31 being extended may hang down. There was a risk of shaking and contacting the existing cable 42. Therefore, in the unlikely event that the communication cable 3
Cable 1 being extended when 1 contacts existing cable 42
The pre-hanger 1 (for integrally engaging the optical cable or the like with the support wire 37) is caught on the cable ring of the existing cable 42 (for hanging the optical cable or the like on the support wire) and stably extended. There is a possibility that the line cannot be formed or that the cable ring of the existing cable 42 comes off and falls.

Therefore, an object of the present invention is to solve the above problems, to facilitate the work of sandwiching the support wire 37 in the support wire fixing metal fitting 38, and to allow the communication cable 31 being extended to contact the existing cable 42. The purpose is to provide a metal fittings for a gold car.

[0009]

In order to achieve the above object, the present invention is detachably supported on a utility pole or the like together with a hanging bracket for fixing a cable by sandwiching it with a pair of plates, and the tip of the projecting portion thereof. The metal wheel suspension metal fitting for suspending the metal wire for cable overhead wire is provided with a holding member for temporarily holding the plate in the open state.

Further, it is preferable that the projecting portion is formed to have a length extending beyond the position of the existing cable.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the gold wheel suspension metal fitting 1 is for suspending the gold wire 4 for the cable overhead wire while being supported by the suspension metal fitting 3 attached to the electric pole 2.
The suspending metal fitting 3 includes a support wire fixing metal fitting 7 for fixing the supporting wire 6 of the communication cable 5 by sandwiching it, and a supporting wire fixing metal fitting 7
And a band 8 for fixing to the telephone pole 2.

The support wire fixing metal fitting 7 is arranged to face the seat plate 10 fixed to the band 8 via metal fitting fixing bolts 9 and a holding plate for pressing the support wire 6 against the seat plate 10. 11 and support wire fixing bolts 12 and 12 which are inserted into the seat plate 10 and the holding plate 11, respectively, for sandwiching and tightening the support wire 6 between the holding plate 10 and the seat plate 11.

The holding plate 11 and the seat plate 10 have grooves 13 and projections 14 formed on the surfaces facing each other.
The sandwiched support line 6 is designed not to fall off. The support wire fixing bolts 12 and 12 are the seat plate 10 and the pressing plate 11.
2 are provided side by side, and are arranged at appropriate intervals.

The gold wheel suspension metal fitting 1 comprises a frame 15 engaged with the suspension metal fitting 3 and a holding member 16 for temporarily holding the holding plate 11 in an open state.

The frame 15 is formed by bending a metal plate, and is composed of overhang portions 17 and 17 for suspending the cable overhead wire 4 and a hanger portion 18 for suspending the holding member 16. Become. The left and right sides of the frame 15 are formed by being bent inward (hereinafter, the side facing the utility pole 2 is the inside) to reinforce the frame 15, and the frame 15 can be suspended even if the cable wire car 4 is suspended.
Is not distorted.

The projecting portions 17, 17 are portions located at the lower portion of the frame 15, and are formed in a bifurcated manner by cutting out the center of the lower portion of the frame 15. This is for engaging the metal fixture fixing bolt 9 between the bifurcated overhanging parts 17 and 17 and engaging the frame 15 with the suspension metal fitting 3. When they are straddled, the overhanging portions 17, 17 are respectively positioned below the support wire fixing fitting 7.
Further, engagement holes 20 and 20 for hooking the hooks 19 and 19 of the cable overhead wire wheel 4 are formed at the lower ends of the bifurcated overhangs 17 and 17, respectively. The hooks 19 and 19 of the gold wire 4 for the cable overhead wire are hooked on 20 and 20, respectively, so that the gold wire 4 for the cable overhead wire is suspended. As shown in FIG. 2, the overhanging portions 17, 17 have a length of
When the cable is attached to the hanging bracket 3, a length (outside the existing cable 4) that extends sufficiently outside the position of the existing cable 42 is installed.
(Extending from the position 2 to the outside by about 15 cm), and the existing cable 42 and the existing cable 42 immediately below and in the vicinity of the gold wire 4 for the cable overhead wire suspended on the gold wire suspension fitting 1. It is designed so that the attached equipment etc. are not located.

The hanger portion 18 is a portion located on the upper portion of the frame 15, and when the metal fitting fixing bolt 9 is straddled over the projecting portion 17, the hanger portion 18 projects above the support wire fixing metal fitting 7 by an appropriate length. Is formed in. The hanger portion 18 has a projecting plate 21 formed by bending its upper end outward, and an elastic body 24 of a holding member 16 described later is provided at the lateral center of the projecting plate 21 projecting outward. A hole 22 for hooking is formed.

At the boundary between the overhanging portion 17 and the hanger portion 18, the overhanging portion 17 is bent outward with respect to the hanger portion 18, and the overhanging portion 17 overhangs to the outside of the support wire fixing fitting 7. It is like this.

The holding member 16 comprises a hooking member 23 for rolling up the lower edge of the holding plate 11 upward, and an elastic body 24 for urging the hooking member 23 so as to pull it upward. The hook member 23 is plate-shaped, and has a claw 25 formed at the lower portion by folding the lower end of the plate inward. In addition, a hole 26 for engaging the elastic body 24 is formed at the upper end of the hook member 23.

The elastic body 24 is a pullable coil spring, one end of which is hooked to the hole 22 of the projecting plate 21 to be connected to the hanger portion 18 of the frame 15, and the other end of which is a hole 26 of the hooking member 23. Hanging member 23
It is connected to.

Next, the operation will be described.

When extending the communication cable 5, first, the suspension fitting 3 is attached to the utility pole 2. The suspension bracket 3 is attached to the utility pole 2 by tightening the utility pole 2 with a band 8. The support wire fixing bracket 7 is attached to the band 8 in advance, and the support wire fixing bolts 12 and 12 are loosened to hold down the holding plate 11.
So that it is in a movable state.

After the suspension fitting 3 is attached to the electric pole 2 in this manner, the gold wheel suspension attachment 1 is attached to the suspension attachment 3. At this time, the gold wheel suspension metal fitting 1 is attached to the metal fitting fixing bolt 9 between the band 8 of the suspension fitting 3 and the support wire fixing metal fitting 7 so that the overhanging portion 17 is crotch, and the metal fitting fixing bolt 9 is attached. The frame 15 is placed on top.

Then, the engaging holes 20 and 2 of the gold wheel suspension fitting 1
The hook 19 of the cable overhead wire wheel 4 is hooked at 0 to attach the cable overhead wire wheel 4 to the gold wheel suspension metal fitting 1, and the cable overhead wire wheel 4 is suspended from the gold wire suspension metal fitting 1.

Next, the pressing plate 11 is moved outward to move the seat plate 1
0 as appropriate, and the hook member 2 is attached to the lower edge of the holding plate 11.
Hook the claw 25 of 3 from the outside. At this time, since the hook member 23 is pulled upward by the elastic body 24,
The lower edge of the holding plate 11 will be rolled up.

When the preparation for extending the communication cable 5 is completed in this way, as shown in FIG. 4, a tow rope 32 is connected to the feeding end of the communication cable 5, and the tow rope 32 is connected to the wire cable car. After laying over 4, it is towed by a towing device such as a winch. As a result, the communication cable 5
It will be guided by the towline 32 and will be extended on the gold wire 4 for cable overhead lines. At this time, since the overhanging portion 17 is formed to have a length that extends beyond the position of the existing cable 42, the communication cable 5 that is being extended does not hang down or sway and contact the existing cable 42. The communication cable 5 is stably extended.

Then, the communication cable 5 is attached to the support wire fixing metal fitting 7 so as to be transferred from the respective cable overhead wire wheels 4 to the support wire fixing metal fittings 7 of the respective hanging metal fittings 3. Specifically, only the support wire 6 of the communication cable 5 hung on the gold wire 4 for the cable overhead wire is sandwiched between the seat plate 10 and the holding plate 11 to fix the support wire fixing bolts 12, 1
The support wire 6 is sandwiched between the seat plate 10 and the pressing plate 11 by tightening 2. At this time, since the lower edge of the holding plate 11 is pulled upward by the holding member 16 and is in a rolled-up state, the lower space between the seat plate 10 and the holding plate 11 is held in a sufficiently wide state. Therefore, the support wire 6 can be easily sandwiched between the support wire fixing fittings 7 in the state as it is.

In this way, the gold wheel suspension fitting 1 is attached to the seat plate 10
Since the holding member 16 that temporarily holds the lower portion between the holding plate 11 and the holding plate 11 is provided, the communication cable 5 is held between the seat plate 10 and the holding plate 11 when the support wire 6 is sandwiched between the two hands. It is easy to move the communication cable 5 which can be carried by one hand and is heavy to move with one hand.
Can be attached to.

Further, since the overhanging portion 17 is formed to have a length that extends sufficiently outside the position of the existing cable, the existing cable 42 and the existing cable 42 are provided immediately below and in the vicinity of the suspended cable overhead wire train 4. It is possible to prevent the communication cable 5 being extended from contacting the existing cable 42 or the like due to hanging or shaking of the communication cable 5 without being positioned.

A coil spring is used as the elastic body 24 in terms of durability and ease of handling, but the elastic body 24 is not limited to this, and the hooking member 23 such as a stretchable rubber cord is elastically moved upward. Any material that can be pulled to hold the holding plate 11 in the temporarily opened state may be used.

Further, although the hook member 23 is a plate-shaped member, it is not limited to this, and may be, for example, a wire-shaped member bent to form a claw at the lower end. Anything may be used as long as it has something corresponding to a claw hooked on the lower edge of the plate 11.

[0033]

In summary, according to the present invention, the following excellent effects can be obtained.

(1) The communication cable can be easily attached to the support wire fixing fitting.

(2) It is possible to prevent the communication cable that is being extended from hanging or swinging and coming into contact with an existing cable or the like.

[Brief description of drawings]

FIG. 1 is a perspective view of a money-carrying metal fitting showing a preferred embodiment of the present invention.

FIG. 2 is a schematic side view showing a mounting state of the gold wheel suspension fitting.

FIG. 3 is a schematic side view showing a mounting state of a conventional gold wheel suspension fitting.

FIG. 4 is a side view showing a cable drawing work state.

[Explanation of symbols]

 1 Gold Car Hanging Bracket 2 Telephone Pole 3 Hanging Bracket 4 Gold Car for Cable Overhead Wire 5 Cable (Communication Cable) 10 Plate (Seat Plate) 11 Plate (Holding Plate) 16 Holding Member 17 Overhanging Part

Claims (2)

[Claims] Claims: 1. A metal-carrying metal fitting, which is detachably supported by a utility pole or the like together with a metal fitting for fixing a cable between a pair of plates, and which suspends the metal wire for a cable overhead wire at the tip of the projecting portion. A metal fitting for suspending a gold wheel characterized by comprising a holding member for temporarily holding the plate in an opened state. 2. The money-carrying metal fitting according to claim 1, wherein the projecting portion is formed to have a length extending beyond the position of the existing cable.