JPH11341635A - Call wire drawing-out device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a call wire drawing-out device which can prevent a call wire from being worn away nor scratched and an insulating bushing from being damaged when the device draws out the call wire and, at the same time, with which workers can safely pass an electric wire or cable through a pipe when one worker is positioned to the feeding side of the electric wire or cable. SOLUTION: A call wire drawing-out device is provided with a tension roller 3 which is constituted to prevent a call wire L drawn out of a pipe 1 from coming into contact with the outlet of the pipe 1 or its vicinity and positioned inside a box 2 for power distribution and a driving roller 11 for drawing-out which is constituted to prevent the call wire L drawn out of the box 2 from coming into contact with the opened end section of the communicating port 4a of a substrate 4 to the box 2 and is positioned outside the box 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nominal line drawing device used to draw a nominal line used when passing through a pipe in a general indoor wiring path or the like. is there.

[0002]

2. Description of the Related Art Conventionally, when a wire is passed through a pipe in a general indoor wiring path or the like, first, a work of passing a nominal wire through the pipe is performed, and then an electric wire to be routed to a leading end or a trailing end of the nominal wire. And the operation of pulling out the nominal line from the distribution box by connecting cables and cables, and the operation of sending out wires and cables to be passed to the piping. These operations are performed manually and simultaneously at distant positions.

[0003]

However, when the operation of pulling out the nominal line from the power distribution box as in the prior art described above is performed manually, the angle of pulling out from the power distribution box may become tight or loose depending on the degree of pulling. So that the cutout at the open end of the distribution box,
There has been a problem that the nominal line comes into contact with the insulating bushing attached to the connection portion between the pipe and the distribution box, and the nominal line is worn or damaged, or the insulating bushing is damaged.

Further, the above-mentioned conventional operation of passing a wire through a pipe requires at least two workers on the side of drawing out the nominal wire and the side of sending out the wires and cables, and furthermore, the pipe is long or the pipe is bent. If there are many, there is a problem that a large frictional force is applied to the nominal line, a large number of workers and a large amount of labor are required on the side where the nominal line is pulled out, and the wiring work is very difficult. I was

[0005] In addition, the above-mentioned conventional wiring work in the piping is as follows.
Scaffolds are unstable, and are often performed in poor work environments such as narrow and dark places, which is unsuitable for many workers, and often results in injuries or accidents. There was a problem that it was very dangerous for workers.

Accordingly, the present invention is to solve the above-mentioned conventional problems, and is intended to prevent the nominal wire from being worn or damaged, and to prevent the insulation bushing from being damaged. It is an object of the present invention to provide a call-drawing device that can easily perform a wiring operation into a pipe and can safely perform an operation for an operator.

[0007]

In order to solve the above-mentioned problem, the present invention provides a nominal line drawing device which includes a tension roller 3 for preventing a nominal line L drawn from a pipe 1 from contacting the outlet of the pipe 1 or the vicinity of the outlet. 2 and a draw-out drive roller that prevents the nominal line L drawn out of the power distribution box 2 from contacting the open end of the communication port 4a to the power distribution box 2 provided on the base 4. 11 is provided outside the distribution box 2.

[0008] Further, the nominal line drawing device of the present invention includes:
It is assumed that a tension roller 3 is provided in the power distribution box 2 so that the nominal line L drawn from the pipe 1 does not contact the outlet of the pipe 1 or the vicinity of the outlet.
A draw-out drive roller 11 is provided outside the power distribution box 2 so that the nominal line L drawn out of the power distribution box 2 does not contact the opening end of the communication port 4a to the power distribution box 2 provided on the base 4. The drawer drive roller 11 can be remotely operated.

[0009] Then, the nominal line drawing device of the present invention is:
The position and angle at which the tension roller 3 is installed in the power distribution box 2 can be freely changed.

[0010] Further, the present invention provides
An auxiliary roller 17 may be provided between the tension roller 3 and the drawing drive roller 11.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings.

In the present invention, a tension roller 3 is provided in a power distribution box 2 so that a nominal line L drawn from a pipe 1 does not come into contact with an outlet of the pipe 1 or near the outlet. .

That is, the tension roller 3 is attached to a base 4 provided with a communication port 4a to the power distribution box 2 by a detachable mounting arm 5 protruding from the communication port 4a to form a connection line for the nominal line L. It is mounted so as to be orthogonal to the drawing direction. And the communication port 4a
The screw 9 is screwed from the screw hole 6 provided around the opening of the power distribution box 2 into the screw hole 8 provided around the opening of the power distribution box 2 or the opening of the holed cover 7 attached to the opening. Thus, the base 4 is fixed to the power distribution box 2, and the tension roller 3 attached to the base 4 is disposed in the power distribution box 2. The base 4 has a number of screw holes 1 for mounting the mounting arm 5.
The mounting arm 5 is screwed into an appropriate screw hole 10 out of these many screw holes 10 so that the position and angle at which the tension roller 3 is installed in the power distribution box 2 can be freely adjusted. Make changes possible. The tension roller 3 prevents the nominal line L drawn from the pipe 1 from coming into contact with the outlet of the pipe 1 or near the outlet.

[0014] Further, the present invention provides
A draw-out drive roller 11 is provided outside the power distribution box 2 so that the nominal line L drawn out of the power distribution box 2 does not contact the opening end of the communication port 4a to the power distribution box 2 provided on the base 4. It is assumed.

That is, the draw-out drive roller 11
Is composed of a pressure roller 11a and a driving roller 11b that draw the nominal line L at an angle that does not contact the opening end of the communication port 4a with the nominal line L interposed therebetween, and is orthogonal to the direction in which the nominal line L is drawn. In this way, these rollers are arranged vertically and arranged outside the power distribution box 2. The pressure roller 11a is provided with a gap adjusting means 12 with a drive roller 11b that sandwiches and pulls out the nominal line L, so that the gap with the drive roller 11b can be adjusted by a handwheel 13. Further, the drive roller 11b is attached to a shaft 16a of a drive motor 16 mounted on a base 15 detachably attached to the base body 4 by a detachable pin 14. It should be noted that, with the tension roller 3 alone, the connection angle of the communication port 4a
If the angle cannot be adjusted so that it does not touch the open end of the
An auxiliary roller 17 is provided between the tension roller 3 and the drawing drive roller 11. This auxiliary roller 17
In the illustrated embodiment, the tension roller 3 is provided on the substrate 4 side.
May be provided on the side of the base 15 to which is attached.

[0016] Then, the nominal line drawing device of the present invention is:
The drawer driving roller 11 can be remotely operated.

That is, a remote controller 18 is connected to the drive motor 16 of the drawer drive roller 11 by wire or wirelessly.
By turning on and off 8, the drawer drive roller 11 can be remotely operated.

With the use of the above-configured line drawing device of the present invention, a line drawn through a pipe in a general indoor wiring path or the like is drawn out from the pipe as follows.

First, as shown in FIG. 4, an electric wire or cable (not shown) to be passed is connected to the rear end of a call line L passed through the pipe 1 in the indoor wiring path. Pull out a part of the front end of the line L from the distribution box 2,
As shown in the figure, the tension roller 3, the auxiliary roller 1
7. Hook the drawer drive roller 11 in order, and adjust the gap of the drawer drive roller 11 by the handwheel 13 of the gap adjusting means 12.

When the operator drives the drawer driving roller 11 by turning on the remote controller 18 held by the hand from the wire or cable feeder side, the caller passed through the pipe 1 is turned on. The line L can be drawn from the distribution box 2.

In this case, the tension roller 3 prevents the nominal line L drawn from the pipe 1 from coming into contact with the outlet of the pipe 1 or the vicinity of the outlet. The insulating bushing B is prevented from hitting, and the insulating bushing B is not damaged. The drawing line L is drawn out by the drawing-out drive roller 11 and the auxiliary roller 17 at an angle at which the drawing line L drawn out of the power distribution box 2 does not come into contact with the opening end of the communication port 4 a of the base 4. Nominal line L is not worn or damaged.

Further, the nominal line L passed through the pipe 1 may have a long pipe or many bent parts in the pipe.
Even if a large frictional force is applied to the nominal wire, the wire is drawn out of the power distribution box 2 by the draw-out drive roller 11 without a large number of workers. It is only necessary to perform the work of sending out, and it is not necessary to perform the work of drawing out the nominal line L from the power distribution box.

Further, since the nominal line L passed through the pipe 1 is drawn out of the power distribution box 2 by the draw-out driving roller 11, a place where the working environment is poor such as an unstable scaffold or a narrow and dark place. Therefore, even when such a work is performed, the worker does not need to perform the work, so that injuries, accidents, and the like are less likely to occur.

[0024]

As described above, the nominal line drawing device of the present invention is constructed as described above. Therefore, the nominal line is worn or damaged, and the insulating bushing attached to the connecting portion between the pipe and the power distribution box is provided. It was not damaged. Furthermore, the nominal line drawing device according to the present invention enables a worker to easily perform a wire connection operation into a pipe by placing a single worker on the wire or cable sending side, and also enables a worker to safely perform a work. Can be performed.

[Brief description of the drawings]

FIG. 1 is a side view of a nominal line drawing device of the present invention.

FIG. 2 is a partial plan view of the nominal line drawing device of the present invention.

FIG. 3 is a front view of the nominal line drawing device of the present invention.

FIG. 4 is an explanatory view showing a use state of the call line drawing device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Piping 2 Distribution box 3 Tension roller 4 Substrate 4a Communication port 11 Pull-out drive roller 17 Auxiliary roller L Nominal wire B Insulating bushing

Claims (4)

[Claims] A tension roller (3) is provided in a power distribution box (2) so that a nominal line (L) drawn from a pipe (1) does not contact an outlet of the pipe (1) or a vicinity of the outlet. In addition, make sure that the nominal line (L) drawn out of the power distribution box (2) does not contact the open end of the communication port (4a) to the power distribution box (2) provided on the base (4). Pull-out drive roller (1
A line drawing device wherein 1) is disposed outside the distribution box (2). 2. A tension roller (3) is provided in a power distribution box (2) so that a nominal line (L) drawn from a pipe (1) does not contact an outlet of the pipe (1) or a vicinity of the outlet. In addition, make sure that the nominal line (L) drawn out of the power distribution box (2) does not contact the open end of the communication port (4a) to the power distribution box (2) provided on the base (4). Pull-out drive roller (1
1. A callout drawing device, wherein 1) is disposed outside the power distribution box (2), and the drawing drive roller (11) can be remotely operated. 3. The position and angle of the tension roller (3) in the power distribution box (2) can be freely changed.
Nominal line drawing device described. 4. A device according to claim 1, wherein an auxiliary roller (17) is provided between said tension roller (3) and said drive roller (11). .