JP3068392U - Removal device for cut pavement - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a light-weight, convenient removal and transportation device that can be removed by a simple operation on a pavement road surface that has been cut into a flat circular shape by a cutter or the like for the construction of pipes and the like. thing. SOLUTION: A horizontal support shaft 3 is provided at a lower portion of a lifting member 1 having a lifting hook 2 at an upper end portion. Immediately on both sides of the support shaft 3 according to the outer peripheral surface shape of a pavement road surface to be removed. The two arm members provided with the inner surface-shaped gripping members 41 and 51 at the distal end are symmetrically linked.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a device capable of easily removing a pavement road surface cut by a cutter or the like into a circular shape or a square shape or the like as viewed from a plane while keeping the cut surface.

[0002]

[Prior art]

 In general, electric companies and gas companies can cut existing pavement roads into circular or square shapes with a cutter or the like for plumbing or wiring work, and crush the cut parts to remove them. Much has been done. Conventionally, various cutter devices have been proposed and put into practical use as this cutting device. However, as a means for removing the road surface after cutting, an existing air hammer, drill, or the like is used, so that a large weight is required. Many of them were large and required a lot of labor to transport, and many were not easy to operate.

[0003] Accordingly, not only can the pavement road surface cut into a circular or polygonal shape by a cutter or the like be easily removed as it is cut, but also the operation is simple, lightweight and convenient for transportation and handling. It would be very useful if there was a proper removal device.

[0004]

[Problems to be solved by the invention]

 In view of the above-mentioned conventional technology, the present invention can remove the pavement road surface that has been cut into a flat circular shape by a cutter or the like for the construction of piping, etc. by a simple operation, and is lightweight and convenient for transportation and handling. It is an object to provide a device.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, the configuration of the removing device of the present invention is such that a horizontal support shaft is provided at a lower portion of a lifting member having a hook for lifting at an upper end portion, and a horizontal support shaft is provided on both sides of the support shaft. In addition, two arm members provided with a grip member having an inner surface shape conforming to the outer peripheral surface shape of the pavement road surface to be removed are symmetrically linked to each other.

[0006]

[Embodiment of the invention]

 Next, an embodiment of the present invention will be described with reference to the drawings. 1 is a plan view of an apparatus according to an embodiment of the present invention, FIG. 2 is a front view, and FIG. 3 is a front view of a state in which a cut road surface is removed using the apparatus of FIG.

In FIG. 1, reference numeral 1 denotes a shaft-shaped lifting member having a hook 2 attached to an upper end portion, and a horizontal support shaft 3 is attached to a lower portion of the lifting member. Reference numerals 4 and 5 denote frame-shaped arms which are connected to the support shaft 3 in opposite directions with the shaft 3 interposed therebetween. The arm 4 has an appropriate plane width with the lifting member 1 interposed therebetween. Narrow arms 5 are attached to the shaft 3 respectively.

[0008] At the tip end of the arm 4, a grip portion is formed here, which has an arc shape conforming to the outer surface shape of the circular cut road surface R, and whose inner surface is formed as a wholesaler-like rough surface 41a as an example. A member 41 is attached to be inclined inward, while a gripping member 51 similar to the gripping member 41 is mounted on the arm 5 via an adjustment bolt 52. Reference numeral 53 denotes a bearing for rotatably supporting the adjustment bolt 52, and reference numeral 54 denotes a bearing to which the adjustment bolt 52 is screwed. By operating the adjustment bolt 52, the gripping member 51 at the tip of the arm 5 moves forward and backward. . Reference numeral 6 denotes a stopper provided on the lifting member 1 for restricting the arms 4 and 5 from falling vertically when the device of the present invention is lifted.

In the removing device of the present invention configured as described above, the hook 2 attached to the distal end of the wire W of the lifting machine (not shown) is hooked on the hook 2 to cut the pavement road surface R illustrated in FIG. When the gripping members 41 and 51 are positioned on the circular cutting groove formed in the cut portion C and lowered to fit the gripping members 41 and 51 into the grooves and the lifting member 1 is lifted, the gripping members 41 and 51 are moved to the cut road surface Rc. As shown in FIG. 3, the cut road surface Rc is easily removed from the pavement road surface R. During the lifting, the arms 4 and 5 are inclined downward due to the weight of the cut road surface Rc, so that the inner surfaces of the gripping members 41 and 51 can more firmly support the cut road surface Rc. There is no risk that the cut road surface Rc will fall off.

In the above-described example, the removal of the cut road surface Rc cut into a circular shape has been described. However, the present invention is not limited to this, and can be applied to, for example, the removal of a cut road surface having a square shape. In this case, if the lifting member 1 is set so as to be located at the position of the center of gravity of the rectangular cut road surface Rc and the gripping member is formed in a face-like shape and inclined inward, the same as in the above example. The cut road surface can be safely removed.

[0011]

[Effect of the invention]

 The present invention is as described above, and a horizontal support shaft is provided below a lifting member having a lifting hook at an upper end portion, and an outer peripheral surface of a pavement road surface to be removed is provided on both sides of the support shaft. The removal device was formed by symmetrically linking two arm members provided at the tip with a gripping member having an inner surface shape conforming to the shape, so when removing a cut road surface, it was formed on a pavement road surface. If the gripping member is fitted into the groove of the cutter, and the hook of the lifting member is hooked with the wire of the lifting machine and lifted, the gripping member cuts into the outer peripheral surface of the flat circularly cut road surface, so the road surface was cut. As it is lifted as it is, the cut road surface can be easily and safely removed as it is. In addition, since the removing device has a simple structure as a whole, it can be easily and inexpensively manufactured and provided, and can be transported and handled easily because it is finished relatively light in weight.

[Brief description of the drawings]

FIG. 1 is a plan view of an example of the device of the present invention.

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a front view of a state where a cut road surface is removed using the apparatus of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lifting member 2 Hook 3 Support shaft 4,5 Arm 41,51 Gripping member 52 Adjusting bolt 53,54 Bearing 6 Stopper

Claims (3)

[Utility model registration claims] 1. A horizontal support shaft is provided at a lower portion of a lifting member having a lifting hook at an upper end portion, and an inner surface shape conforming to an outer peripheral surface shape of a pavement road surface to be removed is provided on both sides of the support shaft. An apparatus for removing a cut pavement road surface, characterized in that two arm members each having a gripping member provided at a distal end thereof are symmetrically linked. 2. The removing apparatus according to claim 1, wherein one or both of the arm members are provided with a mechanism for adjusting the position of the gripping member. 3. The removing device according to claim 1, wherein the inner surface of the gripping member is formed as a rough surface.