JP2584452Y2 - Cable housing pipe vertical cutter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for constructing a cableway (underpass) or a manhole by embracing a cable accommodating tube accommodating a communication cable and removing the accommodating tube protruding from a wall surface. The present invention relates to a cable-housing vertical cutting cutter for safely cutting the housing pipe without damaging the cable in order to house the cable in the path or the manhole.

[0002]

2. Description of the Related Art When expanding telecommunications equipment buried underground, expansion work of existing manholes and handholes is performed, but with this work, part of the current cable housing pipe is not required. Therefore, it is necessary to remove the cable housing tube. In the removal operation, it is necessary to cut the cable housing pipe without damaging the cable and take out the cable from the inside.

For this reason, conventionally, a portion to be removed is cut along the longitudinal direction of the tube using a cutter corresponding to the material of the current cable housing tube, and after the cable is taken out from the tube, an unnecessary portion of the tube is removed. Had been cut.

However, in general, in order to cut a tube, the distance between the housing tube and the housed cable is at least 2c.
m or more, but in fact, due to various factors such as the type of cable, differences in outer diameter dimensions, and the meandering of the cable in the pipe depending on the location, the pipe must be cut by a skilled worker, Nevertheless, it was difficult to avoid a cable cutting accident.

Therefore, when the electric cutter is mounted on a slide member guided along the outer surface of the cable housing pipe, and a cutter having a cable protection plate attached to the rear of the slide member is used, when the cutting is performed, the electric cutter is protected. Even when the plate is inserted between the inner wall of the cable accommodating pipe and the cable, and the fixing position of the cutting blade is shifted during cutting, and the cutting blade is pushed deep, the cable is not cut by the cable protection plate. A cutting machine is also used.

[0006]

However, in the conventional cutter with a cable protection plate, the position of the cutting blade is adjusted according to the cutting depth and fixed with screws.
If the screw is loosened, the position of the blade may be displaced, and since the cable protection plate is attached to the rear end of the slide member on which the cutter is mounted with one point support, if the distance between the cable and the pipe wall is reduced. There is a problem that the cable protection plate is pushed up by the cable and comes into contact with the cutting blade, so that the cable protection plate is cut and the cable is damaged.

The present invention prevents the position of the cutting blade from shifting, and maintains a predetermined distance between the cable protection plate and the pipe wall even when the distance between the cable and the pipe wall becomes narrow. It is an object of the present invention to provide a cutter in which a cutting blade does not contact a cable protection plate.

[0008]

According to the present invention, in order to solve the above-mentioned problems, a slide member for mounting the cutter body and a bracket for fixing the cutter are provided. After adjusting the position of the cutting blade in response to the above, the cutting blade is fixed by screws or the like via the bracket.

Further, when the cable protection plate is sandwiched between the inner wall of the cable housing tube and the cable, even when the cable protection plate is pushed up by the cable, the cable protection plate and the inner wall of the cable housing tube are provided. At a predetermined value, and at the open end of the cable protection plate so that the end of the cable protection plate slides easily on the wall even when the end of the cable protection plate is in contact with the inner wall of the cable housing tube. A piece is provided to form a vertical splitting cutter for the cable housing pipe.

[0010]

Since the present invention is constructed as described above, since the slide member and the cutting blade are fixed by the bracket, the adjusting screw for adjusting the cutting depth of the cutting blade during cutting the cable housing tube is used. It is possible to prevent the cutter from being displaced due to forgetting to tighten the cutting depth adjusting screw when checking the looseness or the cutter, replacing the cutting blade, or the like.

In addition, while the slide member is placed on the cable housing tube and moved in the vertical direction of the tube to cut the space, the space between the inner wall of the cable housing tube and the cable is set to a predetermined value by the space holding piece attached to the cable protection plate. Since the value does not fall below the value, the cable protection plate is cut by the cutting blade and the cable is not damaged.

[0012]

FIG. 1 is a side view of one embodiment of the present invention, FIG. 2 is a side sectional view when the cutter of the present invention shown in FIG. 1 is used, and FIG.
It is AA sectional drawing of.

1, 2 and 3, 1 is a cutter body, 2 is a cutter, 2a is a cutter position adjusting screw for adjusting a cutting depth of the cutter, 3 is a cutting blade of the cutter, and 4 is a cable cutting pipe. A sliding member that slides upward, 5 is a cutter fixing bracket, 6 is a cable protection plate fixed to the slide member 4, 7 is a spacing holding piece fixed to the tip of the cable protection plate, 8 is a cable housing tube, 9 is a cable.

As shown in FIG. 1, the cutter according to the present invention comprises a general-purpose electric cutter on a slide member 4 slidable in the axial direction of the housing pipe 8 which is vertically divided. A cable housing pipe which is placed and mounted with a cutter fixing bracket 5 between the slide member 4 and the cutter 2 to fix the cutting depth of the cutter with the cutting blade 3 and face the cutting blade 3 to be vertically divided. 8, a spacing member 7 is attached to the open end of the cable protection plate 6 attached to the end of the slide member.

Conventionally, the cutter fixing bracket 5 is used by fixing the cutter position adjusting screw 2a by loosening the cutter position adjusting screw 2a and appropriately setting the cutting depth of the cutting blade. If the tightening of the screw 2a is insufficient, the screw is provided to prevent the cable protection plate 6 from being loosened and the depth of the cut to be deep, and to prevent the cable 9 from being damaged. is there.

When the cable 9 meanders or bends in the cable accommodating tube 8, the spacing member 7 rises,
Since there is a case where the upper part of the cable accommodating tube 8 is approaching or in contact with the upper part of the cable accommodating tube 8, when the conventional cutter is used in this state,
Even if a cable protection plate is attached, the protection plate is pushed up by the cable 9 and cut by the cutting blade so that the cable 9 is not damaged.

FIG. 2 is a side sectional view of the cable housing pipe 8 when the cable housing pipe 8 is vertically divided. When the cable 9 is floating above the cable housing pipe 8, the cable 9 is fixed to the open ends of the cable protection plate 6. The state where the space between the cable protection plate 6 and the cutting blade 3 is maintained by the space holding piece 7 is shown. FIG. 3 is a sectional view taken along line AA in this case.

The shape of the spacing member 7 does not have to be hemispherical, and the mounting position does not have to be at the tip of the cable protection plate 6. The work efficiency was highest when the hemispherical spacing member 7 was attached to the tip of the cable protection plate 6.

The interval held by the interval holding piece 7 can be changed depending on the type of the cable and the shape of the cutter.

[0020]

As described in detail above, according to the present invention, the depth of cut by the cutting blade can be fixed by attaching the bracket for fixing the cutter, and at the same time, the gap holding piece is provided on the cable protection plate. By mounting, there is an effect that there is no possibility that the cable is damaged by the cutting blade, and an effect that the slip in the cable housing pipe of the cutter is improved and the working efficiency can be improved can be expected.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment of the present invention.

FIG. 2 is a side sectional view when the cutter of the present invention shown in FIG. 1 is used.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cutter body 2 Cutter 2a Cutter position adjusting screw 3 Cutting blade 4 Slide member 5 Cutter fixing bracket 6 Cable protection plate 7 Spacing piece 8 Cable storage tube 9 Cable

Claims (1)

(57) [Scope of request for utility model registration] 1. A cutter for vertically dividing an end of a cable housing tube, and a slide member having the cutter mounted on an upper surface and a lower surface formed to be slidably contacted along an outer surface of the cable housing tube. One end is fixed to the rear end of the lower surface of the slide member, is loosely fitted in the cutting gap by the cutting blade of the cutter, is fixed to the other end of a slidable plate material of a predetermined size,
The sliding member is supported facing each other at a predetermined interval, and is sandwiched between the inner surface of the cable housing tube and the cable housed in the cable housing tube, and the cable is damaged by the cutting blade. In a vertically divided cutter for a cable housing pipe comprising a cable protection plate of a predetermined size for preventing the above, a position of a cutting blade of the cutter fixed to the slide member corresponds to a thickness of a pipe wall of the cable housing pipe. A bracket for fixing the cutter, and at an open end of the cable protection plate, a distance between the cable protection plate and the inner wall of the cable housing tube is maintained at a predetermined value or more, and the cable housing of the cable protection plate is held. A vertical splitting cutter for a cable housing pipe provided with a spacing member for facilitating insertion into the pipe.