JP2000328475A - Wiring of cable, and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for wiring twisted PC steel wires or those coated with polyethylene(PE) into cables for bridges or the like, which allows to easily bundle the twisted wires into a given shape. SOLUTION: This method comprises (A) dividing a plurality of twisted PC steel wires 1 for one cable into two parts and winding them on carriers 2, (B) withdrawing the wires 1 from each carrier 2, after it is sent to a work site, (C) bundling the ends of these wires into a given shape and clamping them by a pilot cap 15, (D) providing an adequate number of handling rolls 5 between the carrier and pilot cap, (E) providing a forming roll 10 between the handling rolls and pilot cap, (F) connecting a feeding wire to the pilot cap 15, and (G) feeding the twisted PC wires 1 while continuously forming them into a given shpae.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for wiring a cable for collectively wiring a PC steel stranded wire or a PC steel stranded wire coated with polyethylene (PE) as a cable to a bridge or the like. About.

[0002]

2. Description of the Related Art Conventionally, for example, a plurality of PC steel strands constituting one cable are measured at a factory in advance to a predetermined length and wound around a bundled carrier. The cable is carried into the construction site, and the cable is pulled out from the carrier and wired.

[0003]

However, with the enlargement of structures such as bridges, large-capacity cables are required, and the number of PC steel strands constituting one cable is also increased, and the length and weight are increased. As the number of carriers increases, special carriers, carriers for handling the carriers, heavy equipment, and the like are required, resulting in an increase in cost. Also, when the cable length becomes long, the PC steel strands are simply bundled, so during the wiring work,
There is a problem that the shape of the cable collapses and the wires of the PC steel are twisted or twisted. A cable wiring method and a wiring device according to the present invention are proposed to solve such a problem.

[0004]

The gist of the present invention for solving the above-mentioned problems of the cable wiring method according to the present invention is to divide a plurality of PC steel stranded wires of a required length constituting one cable into carriers and wrap them. Take, after carrying the carrier to the construction site of the structure, draw out the PC steel wire from each carrier, bundle the tip part into a required shape, clamp with a pilot cap, between the carrier and the pilot cap, An appropriate number of separating roller devices are arranged, a forming roller is arranged between the separating roller device and the pilot cap, and a drawing wire is connected to the pilot cap to continuously form a PC stranded wire into a required shape. It is to pull in while.

[0005] The gist of the cable wiring device according to the present invention is to provide a carrier for winding a PC steel stranded wire having a desired length, and a vertical guide in which the PC steel stranded wire drawn from the carrier is vertically arranged in a line. A separating roller device for regulating the position of the PC stranded wire from the vertical guide vertically and horizontally and a forming roller for aligning the PC stranded wire from the separating roller device into a required shape.

According to the method and apparatus for wiring a cable according to the present invention, a structure is adopted in which a plurality of carriers are used to wind a PC steel stranded wire cut to a desired length and carry it into a construction site. It is possible to subdivide and cope with the increase in the weight of the cable accompanying the increase in the size of the object.

[0007] The end portions of a plurality of PC stranded wires drawn out from a plurality of carriers after being formed into a required shape are first bundled with a temporary clamp, a pilot cap is attached, a wiring device is inserted, and the wires are pulled in with a pull-in wire. A plurality of PC steel stranded wires can be continuously formed and bundled without intersecting with a required shape (for example, hexagon), and can be wired as one cable.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a cable wiring method and a wiring device according to the present invention will be described with reference to the drawings. FIGS. 1 and 2 show a schematic embodiment of a cable wiring method, in which a PC steel strand 1 is measured to a predetermined length, and a required number (for example, 19) of carriers 2 is used. , 2 (for example, 10 or 9) and wound.
Therefore, even if the cable becomes large, an ordinary carrier of about 2t can be used, and a special vehicle is not required for transporting the same.

[0009] The length measurement of the PC steel strand 1 and the carrier 2
The winding operation is performed at a factory, for example. Then, the carrier 2 is carried into the construction site and placed on the unreeler 2a. At the site, a wiring device 3 is prepared. Each configuration of the wiring device 3 will be described in detail with reference to FIGS.

On the base 3a of the wiring device 3, a vertical guide 4, a separating roller device 5, and a hexagonal roller 6 are provided in this order from the front end to the rear end. As shown in FIG. 3, the vertical guide 4 is provided with guide members 4a and 4b provided with a rotatable vertical roller 4c and a guide plate 4d on opposing surfaces at a predetermined interval.
a required number of PC steel strands 1 drawn from a carrier 2 placed on a are arranged in a line in a vertical direction;
Are guided so that the PC steel strands 1, 1,... Do not cross each other.

The separating roller device 5 is shown in FIG.
As shown in FIG. 5 (b), a vertical separating roller 5a is formed having rotatable rollers 7, 7 vertically suspended at a required interval in the left-right direction on the frame body 6, and FIG. like,
It comprises a horizontal separating roller 5b having a rotatable roller 9 installed in the frame body 8 at a required interval in the vertical direction and parallel in the horizontal direction. The vertical separating roller 5a
Is used to regulate the position of the PC stranded wire 1 in the left-right direction. The one roller 7 can be moved and adjusted in the left-right direction by the long hole 6a of the mounting portion and the adjusting screw portion 6b. Further, the rollers 9, 9 in the horizontal separating roller 5b are used.
The vertical spacing between them is set to be less than twice the diameter of the PC steel strand 1 so that the PC strand 1 does not intersect.

As shown in FIG. 6, the hexagonal roller (forming roller) 10 is formed by bundling PC steel strands 1 into a predetermined shape and forming, for example, in the case of a hexagonal roller. A U-shaped supporting member 11b, a shaft 11c mounted on the supporting member 11b, and a shaft 11c mounted on the inner wall surface of each of the hexagonal frame members 11 which can be freely opened and closed by hinges 11a and fixed with bolts and the like. A roller 12 rotatably mounted on a shaft 11c via a bearing is provided. The PC steel strands 1 are bundled and formed into a hexagonal shape by the six rollers 12 arranged and supported in a hexagonal shape toward the center of the frame body 11.

Note that guide rollers 13 and 14 are provided in the left and right directions at the front and rear ends of the base 3a.

A method of continuously forming the PC stranded wire 1 into a predetermined shape using the wiring device 3 will be described. First, the PC steel wire 1 is pulled out from each of the carriers 2 and 2, and its tip is bundled in a required shape (hexagon) and clamped by the pilot cap 15.

The carrier 2 and the pilot cap 15
, A vertical guide 4 and a separating roller device 5 are disposed, and the separating roller device 5 and the pilot cap 1 are disposed.
5 and a molding roller 10 is inserted between them, and 1 is inserted from each PC steel so as to be appropriately arranged. Thereafter, a drawing wire is connected to the pilot cap 15 and the PC steel strand 1 is required. It is drawn in a predetermined direction while being continuously formed into a shape. Then, the PC steel stranded wire 1 is drawn out of the carrier 2 and aligned in a vertical line by the vertical guide 4 and is then distributed vertically and horizontally by a separating roller device 5 composed of a vertical separating roller 5a and a horizontal separating roller 5b. Further, a cable formed into a required shape by the molding roller 10 and formed into a single cable is laid between fixing portions to be tensioned and fixed.

[0016]

As described above, according to the method for wiring a cable according to the present invention, a plurality of PC steel stranded wires having a required length constituting one cable are divided into a carrier and wound, and the carrier is mounted on a structure. After being carried into the construction site, the PC steel wire is pulled out from each of the carriers, the ends thereof are bundled in a required shape, clamped with a pilot cap, and an appropriate number of separating roller devices are provided between the carrier and the pilot cap. A wiring method for a cable, in which a forming roller is provided between the separating roller device and the pilot cap, and a drawing wire is connected to the pilot cap, and a PC steel stranded wire is drawn while being continuously formed into a required shape. Therefore, by winding a PC steel stranded wire cut to a desired length on multiple carriers and carrying it to the construction site, it is possible to increase the size of the structure Cormorant relative to the weight of the cable,
It has an excellent effect that it can be flexibly adapted to existing transportation means. In addition, by pulling in the pilot cap to be bundled into the required shape with a pull-in wire, a plurality of PC steel strands can be continuously formed into the required shape, bundled, and easily wired as a single cable. To play.

The cable wiring device according to the present invention comprises a carrier for winding a PC steel stranded wire having a desired length, a vertical guide for vertically arranging the PC stranded wire drawn from the carrier, and a vertical guide. P from vertical guide
A separation roller device that regulates the position of the C steel stranded wire up and down, left and right, and a molding roller that aligns the PC stranded wire from the separation roller device into a required shape. The present invention has an excellent effect that the cable can be easily and continuously formed without interlacing.

[Brief description of the drawings]

FIG. 1 is a plan view showing an outline of a cable wiring method and a wiring device according to the present invention.

FIG. 2 is a front view showing an outline of a cable wiring method and a wiring device according to the present invention.

FIG. 3 is a front view (a) of a vertical guide of the cable wiring device according to the present invention and an enlarged plan view (b) of a part thereof.

FIG. 4 is a plan view (a) and a front view (b) of a longitudinal separating roller 5a of the cable wiring device according to the present invention.

FIG. 5 is a front view of a horizontal separating roller 5b of the cable wiring device according to the present invention.

FIG. 6 is a front view of a molding roller of the cable wiring device according to the present invention.

[Explanation of symbols]

1 PC stranded wire, 2 carrier, 3 wiring device, 3a
Base, 4 vertical guide, 4c vertical roller, 5
Separating roller device, 5a vertical separating roller, 5b horizontal separating roller, 6,8 frame, 7,9 roller, 10 forming roller, 11 frame, 12 roller, 13,14 roller,
15 Pilot cap.

Claims (2)

[Claims] 1. A plurality of Ps having a required length constituting one cable.
After splitting the C-stranded wire into a carrier and winding it up, carrying the carrier to the construction site of the structure, pulling out the PC-stranded wire from each carrier, bundling the tip into a required shape, and clamping with a pilot cap An appropriate number of separating roller devices are disposed between the carrier and the pilot cap, a forming roller is disposed between the separating roller device and the pilot cap, and a drawing wire is connected to the pilot cap. A method of wiring a cable, comprising: drawing in a PC steel stranded wire while continuously forming the wire into a required shape. 2. A carrier for winding a PC steel stranded wire having a desired length, a vertical guide in which PC steel stranded wires drawn from the carrier are vertically arranged in a line, and a PC steel stranded wire from the vertical guide. A cable separating device, comprising: a separating roller device for regulating the position of the cable in the vertical and horizontal directions, and a forming roller for aligning the PC stranded wire from the separating roller device into a required shape.