JP2001164510A - Method of cutting periphery of pavement-surface projection - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rapidly cut the periphery of a pavement-surface projection such as utility pole circularly. SOLUTION: A cutter 30 with a rotating blade 31 is moved along a surface, pushing an applying tool 21 for a guide tool 20 against the utility pole 10, and a pavement slab is cut in a circular shape or an imperfect circular shape. The cut pavement slab is crushed by a breaker or the like and removed, and a quick-setting concrete removing section is restored and paved, thus completing construction works in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cutting and removing a pavement such as a utility pole, a sign, a fire hydrant around a road occupation protruding from a pavement surface.

[0002]

2. Description of the Related Art When repairing a pavement around a protrusion of a columnar member such as an electric pole or changing a temporary pavement after installation to a main pavement,
It is necessary to cut and remove the pavement slab around the utility pole. Conventionally, the periphery was cut into a square with a straight line and crushed and removed with a breaker. However, since the cutting area becomes large, as shown in FIG. 4, a guide rail is fixed to a utility pole, and a cutting machine is arranged along the guide rail. A method has been proposed in which an electric pole is moved by rollers to cut the periphery of a utility pole in a circular shape.

[0003]

The circular cutting is economical because the removal area of the pavement road slab is small, the area of the pavement to be restored is small compared to other methods, and therefore, the amount of restoration material is small. . However, in the conventional method, it is troublesome to fix the guide rail to the utility pole, it is troublesome, and even if some skill is required, there is a demand for a method of easily cutting the periphery of a protruding object such as a utility pole into a circle. Was. SUMMARY OF THE INVENTION The present invention provides a method for easily cutting a protrusion on a pavement such as a telephone pole into a circular shape or an incomplete circular shape.

[0004]

SUMMARY OF THE INVENTION A pavement slab cutting machine cuts the periphery of a protrusion into a circular or incomplete circle through a guide tool that keeps a constant distance from the protrusion of the pavement slab, and cuts the paved slab. Cutting and removing method around the protruding object to be removed. More specifically, the guide tool comprises an arc-shaped plate and a spacer that match the outer periphery of the utility pole, and the arc-shaped plate is brought into contact with the projecting object, and the cutting machine is moved so as to trace the outer periphery of the projecting object with the arc-shaped plate. In addition, another guide member can be wound around and fixed to the protruding object, can extend the wire by extension, can keep the cutting machine at a fixed distance from the protruding object, and can control the outer periphery of the protruding object. It is designed to respond to changes in length.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. As shown in FIG. 2, the utility pole 10 is a pavement slab 1
It is normal that it is built in contact with the end of 1, and it is in contact with gutters and curbstones, so it is difficult to cut the entire circumference of the utility pole into a complete circle, and it has to be cut into an incomplete circle. I can't.

[0006] The guide member 20 includes an arcuate patch 21 conforming to the outer periphery of the utility pole 10 and a spacer 22 extending from the patch.
A cutting machine 30 having a rotary blade 31 is attached to the end of the spacer 22 so that the angle of the rotary blade 31 with respect to the road surface can be adjusted. The patch 21 uses a low-friction material or coats the surface with a low-friction material so as to easily slide and move along the utility pole 10. Or, the patch 21
A plurality of balls are rotatably embedded so as to protrude from the surface of the power pole by several millimeters so that the surface of the telephone pole can be moved smoothly.

The operator applies the contact 21 to the surface of the utility pole 10 and cuts the outer periphery of the utility pole in a circular shape while holding the cutter 30 and pressing the guide 20 against the utility pole. When the cutting of the pavement slab is completed, the pavement slab between the utility pole 10 and the cutting line is crushed with a breaker or the like and removed.

[0008] A primer is applied to the cut surface and the side of the utility pole, and quick-setting concrete is poured to complete the restoration of the pavement.

Another embodiment of the guide tool 20, as shown in FIG. 3, is a wire 23 housed in a dispensable manner.
The wire 23 is wound around a utility pole to form a loop, fixed, and connected to a cutting machine 30 to cut the periphery of the utility pole 10 into a circular shape.

[0010]

According to the present invention, the guide can be used to easily cut the periphery of a protruding object such as a utility pole into a circular shape, so that the work can be performed quickly.

[Brief description of the drawings]

FIG. 1 is a front view illustrating a cutting state.

FIG. 2 is a plan view illustrating a cutting state.

FIG. 3 is a front view illustrating a cutting state using another guide tool.

FIG. 4 is a front view illustrating a cutting state according to a conventional method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Utility pole 11 Paved road plate 20 Guide tool 21 Patch tool 22 Spacer 23 Wire 30 Cutting machine 31 Rotary blade

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takayuki Shimamura 1-2-2, Nishi-Shinjuku, Shinjuku-ku, Tokyo (72) Inventor Katsuya Sato 1-1, Minami Dainichicho, Shushuji, Yamashina-ku, Kyoto, Kyoto (72) Invention Person Yu Murase F-term (reference) 1-22-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo 2D053 AA25 AD01 DA01

Claims (3)

[Claims] 1. A method for cutting around a protruding object in which a cutting machine is kept at a fixed distance from a protruding object on a pavement road surface via a guide tool and the periphery is cut into a circular or incomplete circular shape. 2. The cutting method according to claim 1, wherein the guide comprises an arc-shaped plate and a spacer which match the outer periphery of the utility pole. 3. A cutting method according to claim 1, wherein the guide member can be fixedly wound around the protrusion, and the wire can be extended by extending the wire.