JPS63144707A - Method and apparatus for paying off messemger rope for laying cable in cable rack - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a method and device for feeding out a metsenger rope for cable extension in a cable rack, and relates to a method and device for feeding out a metsenger rope for extending cables in a cable rack. When extending the cable, the metsenger rope can be easily fed out into the cable rack, and the efficiency of the cable extension work using the metsenger rope is improved.

(Conventional technology) Traditionally, when wiring various cables together in buildings, factories, and other architectural structures, a shelf-like cable rack is often laid and the cables are routed and stored within this cable rack. .

When running a wire, if the cable has a large diameter and is relatively heavy, a Messenger rope is connected to the end of the cable and the Messenger rope is pulled from the front of the wire.

That is, as shown in FIG. 9, first, a cable C is prepared on the side of the cable rack L to be wired, and a traction machine W such as a winch is placed on the side of the cable rack L to take out the line. A worker transports the Messenger rope R that has been arranged and gathered up to the unwinding side after knowing where to take it (see (I) in the same figure). Next, the Messenger rope R is connected to the tip of the cable C, and the Messenger rope R is sequentially extended into the cable rack L and connected to the pulling machine W at the receiving end (see (n) in the same figure). Thereafter, the traction machine W is started and the cable C is drawn into the cable rack L by pulling the messenger rope R (see (m) in the same figure). After the line extension work is completed, the Metsusenger rope R is transferred from the traction machine W.
Remove it, transport the Metzenger rope R to the payout side again, and repeat this process.

(Problems to be Solved by the Invention) According to such a conventional work method, a worker has to go back and forth to transport the Messenger rope every time the cable has been extended, which is extremely troublesome. ,Moreover,
If the distance is long, the fatigue level of the workers will increase, and a large number of workers will be required.

In view of the current situation, the inventors of the present invention have considered and investigated ways to easily carry out the work without transporting or reciprocating the Messenger rope, and have completed the present invention.

That is, the present invention aims to improve the efficiency of wire extension work by eliminating the need for transporting and reciprocating the metsenger rope, which was a nuisance in conventional wire extension work. Alternatively, the purpose is to enable the metsenger rope to be easily fed out to the receiving side without knowing how to pay it out, only by operating it at the receiving side.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a method that includes:
A looped guide wire is inserted into the cable rack, one winding section is placed on the cable's feeding side, and the other is placed on the cable receiving side. The tip of the Metsenger rope, whose rear end is connected to the cable to be used, is connected via a connecting string, and then the guide wire is forcibly pulled.
The purpose of this method is to pull the Metsenger rope into the cable rack by circulating it, and move the end of the Metsenger rope to the receiving side. An end path support fitting placed on the end path of the delivery side and a take-up side, a straight path support fitting placed on a straight path depending on the wiring route mode, a horizontal bending path support fitting placed on a horizontal curved path, It consists of a combination of up-down path support fittings arranged on up-down paths, and the guide wire supported and inserted through the end path support fittings, straight path support fittings, horizontal bending path support fittings, and up-down path support fittings is connected to the cable. This is because they are arranged in a loop along the rack.

(Function) In the present invention configured as described above, firstly, terminal path support fittings are provided on each of the cable delivery side and the cable take-off side in the cable rack which is appropriately laid to pass the cable. do.

By selecting and combining them depending on the wiring path mode between them, straight path support fittings are installed for straight paths of cable racks, horizontal bending path support fittings are installed for horizontal curved paths, and up-down path support fittings are installed for up-down paths. .

After installation, the guide wire is passed through and supported by each metal fitting, so that the guide wire sweeps in a loop shape on the side of the cable rack.

Therefore, the connecting string at the tip of the Messenger rope, whose rear end is connected to the cable prepared at the feeder, is connected to the guide wire, and the wire under the guide is pulled around by manual or mechanical operation.

The metsenger rope is then fed out into the cable rack and delivered to the receiving end. When the tip of the metsenger rope is unwound as far as it can be taken in, the cable is pulled into the cable rack via the metsenger rope by connecting the rope to an appropriate traction machine and starting the traction machine. The line will be extended.

After pulling in and extending the cable, the Metsenger rope can be removed from the cable and the extension work can be repeated for each cable.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 8.

In FIG. 1, an overview of the invention is shown.

That is, a looped guide wire 1 is inserted along the cable rack L where the cable C is to be extended, and one of the winding portions is placed on the side where the cable C is fed out.
The other one is located on the receiving side where the towing machine W is arranged. The guide wire 1 itself is pulled by a worker manually or mechanically, and is looped along its interlocking path.

The tip of the messenger rope R, whose rear end is connected to the cable C to be routed inside the cable rack L, is connected to the position of the guide wire 1 via the connecting string 2 (
(See Figure 1 (I)). The length of the Metsusenger rope R itself roughly corresponds to the length between the point at which it is fed out and the point at which it is picked up, and it must be as light as possible while having sufficient load capacity to tow the cable C. is desirable.

Guide wire 1 to which Metsenger rope R is connected
For example, the robot is forcibly towed and circulated by a worker on the delivery side. Along with this, the messenger rope R is drawn into the cable rack L, and the tip of the messenger rope R reaches the receiving side where the traction machine W is arranged (see FIG. 1 (II)).

At the pick-up point, the tip of the Messenger rope R is removed from the guide wire 1 and connected to the traction machine W, and then the Messenger rope R is started by starting the traction machine W.
The cable C is drawn into the cable rack L through the cable (see Fig. 1 (■)).

After the cables C have been stretched, the messenger rope R is removed from the traction machine W, and the same process is repeated to complete the work of stretching a plurality of cables C.

In addition, when the cable C is pulled by the traction machine W, various types of wire stretching rollers are planned to be used to reduce the wire stretching load (not shown). As shown in FIG. 2, the loop-shaped guide wire 1 is arranged along the wire path by a terminal path support fitting 10 arranged at the terminal path of the feeding side and the receiving side, and a straight line depending on the wiring path mode. This is achieved by a combination of straight road support fittings 20 arranged on roads, horizontal curved road support fittings 30 arranged on horizontal curved roads, and up-down road support fittings 40 arranged on up-down roads.

As shown in FIGS. 3 and 4, the distal tract support fitting 10 includes:
Two pieces 12 are bent and connected to the upper part of the support piece 11 fixed to the main girder L1 of the cable rack L, and side pieces 13 are bent and connected to the sides thereof. A wire support bolt 14 having a loop formed therein through which the guide wire 1 is inserted is connected to the upper piece 12, and a wire tension bolt 15 having a loop formed therein through which the guide wire 1 is inserted is connected to the side piece 13. are slidably inserted and supported by an elastic traction action.

To fix the support piece 11 to the main girder L1, the lower part of the support piece 11 is brought into contact with the screen of the main girder L11, and the U-shaped set bolt 16, which has been placed inside the main girder L1, is inserted through the lower part of the support piece 11.
Fasten with screws. The loops of the wire support bolts 14 and wire tension bolts 15 have their free ends overlapped with the loop bases, and the guide wire 1 is forcibly inserted into the gap, so that smooth insertion of the guide wire 1 into the loops is ensured. Plan. The wire support bolt 14 is connected to the upper piece 12 by screwing it into a screw hole formed in the upper piece 12 and at the same time tightening it with a nut to prevent the wire support bolt 14 itself from spinning or rattling.

The wire tension bolt 15 has a threaded portion inserted into a through hole drilled in the side piece 13, and a coil spring 17 is fitted into the threaded portion and secured with a nut. By adjusting the elastic compression,
The guide wire 1 inserted through the loop is tensioned appropriately. It is also sufficient to provide the wire tension bolt 15 only on either one of the end path support fittings 10 at the feeding side and the pulling side.

The straight path support fitting 20 for a straight path has an upper piece 22 bent and connected to the upper part of a support piece 21 fixed to the main girder L1 of the cable rack L, as shown in FIG. A wire support bolt 23 having a loop formed therein through which the guide wire 1 is inserted is connected to the upper piece 22 . Also,
A support arm 24 is connected to the support piece 21 itself, and an insertion slit 26 is cut in the peripheral wall of a wire receiver 25 attached to the support arm 24, through which the connecting cord 2 is inserted.

The fixing structure of the support piece 21 to the main girder L1 and the connection structure of the wire support bolt 23 to the upper piece 22 are the same as those of the support piece 11 and the wire support bolt 14 in the terminal path support fitting 10, so the explanation thereof will be omitted. is omitted. The illustrated support arm 24 is made by bending a strip-shaped plate material of appropriate thickness and width into an L-shape on the side. The support arm 24 is screwed to the support piece 21 at the vertical part, and has a wire receiver on the lower surface of the tip of the horizontal part. 25 is supported by screws. Insertion slit 26 of wire receiver 25
is provided from one end of the cylindrical wire receiver 25 to the other end, and the width becomes gradually wider at both ends, and the width is wide enough at the center to allow only the connecting string 2 to be inserted. It is considered to be narrow (see Figure 7).

The guide wire 1 inserted into the wire receiver 25 is connected to the mesh rope R via the connecting string 2.
When connecting the ropes, as shown in FIG. 7, a conical cap 3 with a rounded top is attached to the tip of the Messenger rope R. Then, when the metsenger rope R pulled along with the guide wire 1 being towed and circulated reaches the wire receiver 25 position, the connecting cord 2
is inserted into the wire receiver 25, while the cap 3 moves along the outer side of the wire receiver 25 while slidingly contacting the outer surface of the edge of the insertion slit 26 when attaching the rope. At this time,
When attaching the rope, the conical top of the cap 3 makes smooth sliding contact with the wire receiver 25 and does not hinder movement.

In addition, the horizontal curved road support fittings 30 for horizontal curved roads are
As shown in FIG. 6, in response to the bending angle in the horizontal plane on a curved road, several pieces of structure similar to the straight road support bracket 20 are installed at the front and rear of the curved road. Attached to L1. That is, the support piece 31 fixed to the main girder L1, the upper piece 3 bent and connected above the support piece 31
2. It comprises a wire support bolt 33 connected to the upper piece 32, a support arm piece 34 connected to the support piece 31 itself, and a wire receiver 35 that has an insertion slit 36 and is attached to the support arm piece 34. The wire receiver 35 is designed to be able to swing freely in a horizontal plane relative to the support arm piece 34 in accordance with the bending angle.

In addition, the insertion slit 26 of the wire receiver 25 in the straight path support fitting 20 and the insertion slit 36 of the wire receiver 35 in the horizontal curved path support fitting 30 are both located laterally when installed in the cable rack L. especially,
In a horizontal curve, the guide wire 1 is directed outward and is towed around the wire receiver 25.35.
Care has been taken to ensure that it does not fall out.

Furthermore, up-down road support fittings 40 for up-down roads
As shown in FIG. 8, for example, the guide rod 41 is made of an approximately L-shaped round bar fixed to the main beam 1, and the guide wire 1 is slidably guided on the lower surface of the horizontal portion thereof. ing. The guide rod 41 itself is fixed to the main girder L1 by using the U-shaped set support piece 42, which is not properly fixed inside the main girder L1.
The vertical threaded portions of the guide rod 41 are inserted through both sides of the guide rod 41 and fixed with nuts.

As shown in FIG. 2, this up-down path support fitting 40 is attached to the main girder L1 of the lower cable rack L that is continuous with the cable rack L installed at an angle.
It is located at the bend in the vertical direction.

On the other hand, in order to form a sweeping path for the guide wire 1 in the up-down path, the guide wire 1 is guided and supported above the guiding position of the guide wire 1 by the up-down path support fitting 40, as shown in FIG. Up-down path auxiliary support metal fittings 45 are arranged. This up-down path auxiliary support metal fitting 45 has a wire support bolt 48 in which a loop through which the guide wire 1 is inserted is formed in an upper piece 47 that is bent and connected to the upper part of a support piece 46 fixed to the main girder L1. It is made up of connected parts. Although not shown, the guide rod 41 is connected to the support piece 21 fixed to the main girder L1 in the same manner as the support piece 21 of the straight road support fitting 20 or the support piece 31 of the horizontal curved road support fitting 30. In this way, the guide wire 1 can be guided slidingly, and the wire support bolt 14 can be connected to the upper piece 12 which is bent and connected to the upper part to form a sweeping thread path for the guide wire 1. Good (not shown).

Next, the use of the apparatus of the present invention will be explained with reference to FIG.

In a cable rack L which is suitably laid down to pass the cable C, terminal path support fittings 10 are arranged on each of the cable C feeding side and the receiving side. By selecting and combining them depending on the wiring route mode between them, the straight path support metal fitting 20 is used for the straight path of the cable rack L, the horizontal curve support metal fitting 30 is used for the horizontal curved path, and the up-down path support metal fitting 40 is used for the up-down path. Up-down path auxiliary support metal fittings 45 are respectively provided. After installation, in the loops of the wire support bolts 14, 23, 33 in the respective fittings 10, 20, 30, 40, 45, the wire receivers 25, 35
The guide wire 1 is looped around the side of the cable rack L by passing the guide wire 1 through the cable rack L and applying appropriate tension by inserting the guide wire 1 into the loop of the wire tension bolt 15.

Therefore, the connecting string 2 at the tip of the metsenger rope R connected to the cable C prepared at the feeding end is connected to the guide wire 1, and the guide wire 1 is pulled around by manual or mechanical operation. Then, the metsenger rope R is let out into the cable rack L and reaches the traction machine W installed on the receiving side. In this way, when the tip of the metsenger rope R is paid out as far as it can be taken, the cable C is connected by connecting the metsenger rope R to the traction machine W and starting the traction machine W.
is drawn into the cable rack L via the metsenger rope R and extended. After pulling in and extending cable C.
It is sufficient to remove the metsenger rope R from the cable C and repeat the wire extension work for each cable C.

[Effects of the Invention] The present invention is configured as described above, and therefore, it is possible to pay out the Messenger rope R into the cable rack L by pulling the guide wire 1 at the feeding or receiving side. Since there is no need for the worker to carry the Messenger rope R as in the past, the burden on the worker can be reduced and work efficiency can be improved.

In addition, at the end of the cable rack, there is a terminal support fitting 10.
, and in the wiring paths between them, straight path support fittings 20, horizontal bending furnace support fittings 30, and up-down path support fittings 40 are arranged by appropriately combining them depending on the mode.
The guide wire 1 inserted and supported by these metal fittings 10°20.30.40 follows the wiring path of the cable rack.

Moreover, since the guide wire 1 is looped between the feeding end and the receiving end, and is arranged along the route of the cable C within the cable rack L,
The messenger rope R itself is let out into the cable rack L, and reliably guides the cable C being routed into the cable rack L.

[Brief explanation of the drawing]

Figures 1 to 8 show an embodiment of the present invention, Figures 1 (I) to (III) are schematic diagrams showing the outline of the method of the present invention, and Figure 2 is a perspective view of the entire device of the present invention. FIG. 3 is a perspective view showing the terminal path support fitting, FIG. 4 is a front view thereof, FIG. 5 is a perspective view showing the straight path support fitting, and FIG. 6 is a perspective view showing the horizontal curved path support fitting. Fig. 7 is a perspective view of the wire receiver section and the rope attachment when the cap is moved, Fig. 8 is a perspective view showing the up-down path support fittings, and Figs. 9 (I) to (m) are 1 is a schematic diagram showing an outline of a conventional method. L... Cable rack, Ll... Main girder, C... Cable, R... Metsenger rope, W... Traction machine, 1... Guide wire, 2... Connecting string, 3・・・
・Rope installation is done with a cap, 10...terminal path support fittings,
DESCRIPTION OF SYMBOLS 11... Support piece, 12... Top piece, 13... Side piece, 14... Wire support pole l-115... Wire tension bolt, 16... Set bolt, 17
...Coil spring, 20...Straight path support fitting,
21... Support piece, 22... Upper piece, 23... Wire support bolt, 24... Support arm, 25... Wire receiver, 26... Insertion slit, 30... Horizontal bending Road support fitting, 31... Support piece, 32... Upper piece, 33... Wire support bolt, 34... Support arm piece, 35... Wire receiver, 36... Insertion slit, 40 ...Up-down road support fitting, 41...
Guide rod, 42...Set support piece, 45...Uprun path auxiliary support fitting, 46...Support piece, 47...Upper piece, 48...Wire support bolt. ≧

Claims (1)

[Claims] 1. A looped guide wire is arranged in a looped manner along the cable rack where the cable is to be extended, and one of the winding parts is used to feed out the cable, and the other part is used to take it back. The tip of the messenger rope, whose rear end is connected to the cable to be routed inside the cable rack, is connected to the designated position of the guide wire via a connecting cord, and then the guide wire is A method for feeding out a messenger rope for cable extension of a cable rack, characterized by forcibly towing and circulating the messenger rope to draw the messenger rope into the cable rack, and moving the tip of the messenger rope to the receiving side. 2. End path support fittings placed on the end path of the cable rack where the cable is to be extended and the cable take-off side, straight path support fittings placed on the straight path depending on the type of wiring path, and horizontal curved paths. It consists of a combination of horizontal curved road support fittings placed on the up-down road, and up-down road support fittings placed on the up-down road. A device for feeding out a messenger rope for cable extension of a cable rack, characterized in that a guide wire supported and inserted through the cable rack is arranged in a loop shape along the cable rack. 3. The terminal path support fitting has an upper piece connected to the upper part of the support piece fixed to the main girder of the cable rack, and a side piece connected to the side part, and the upper piece has a loop through which the guide wire is inserted. The formed wire support bolts are connected, and the wire tension bolt, which also has a loop formed in the side piece through which the guide wire is inserted, is slidably supported by an elastic traction action. A messenger rope feeding device for cable extension of a cable rack according to claim 2, comprising: 4. The straight path support fitting has an upper piece connected to the upper part of the support piece fixed to the main girder of the cable rack, and this upper piece has the following:
A wire support bolt having a loop formed therein through which the guide wire is inserted is connected, a support arm is connected to the support piece itself, and the connecting cord is inserted into the peripheral wall of a wire receiver attached to this support arm. A device for feeding out a messenger rope for cable extension of a cable rack according to claim 2 or 3, wherein an insertion slit is cut to allow the messenger rope to extend. 5. The horizontal curve support fitting has an upper piece connected to the upper part of the support piece fixed to the main girder of the cable rack, and this upper piece has a wire support bolt formed with a loop through which the guide wire is inserted. In addition, a support arm is connected to the support piece itself, and an insertion slit is cut in the peripheral wall of the wire receiver attached to the support arm, through which the connecting string is inserted. The device for feeding out a messenger rope for cable extension of a cable rack according to any one of claims 2 to 4, wherein the device is capable of swinging in a horizontal plane according to the bending angle with respect to the support arm piece. 6. The up-down road support fittings are approximately L fixed to the main girder.
The cable of the cable rack according to any one of claims 2 to 5, which comprises a guide rod made of a round bar in the shape of a letter, and a guide wire is slidably guided on the lower surface of the horizontal portion thereof. Messenger rope feeding device for wire extension.