JPH0635772B2 - Column removal device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a columnar object removing device, and more particularly to a columnar object removing device for easily and safely cutting and removing columnar objects such as utility poles.

(Prior Art) When removing existing poles such as utility poles, a method of pulling out with a building pole car, or cutting and removing manually by a person climbing the utility pole and cutting with a cutting tool is adopted. ing.

(Problems to be solved by the invention) By the way, when using a construction pole car to remove a utility pole, etc., when the construction pole car is stopped in a place where the work space is narrow, such as a road width, a traffic stop or a lane may occur. Because it is compressed, it becomes an obstacle to traffic.

Further, in the case of manually cutting and removing the electric pole, the electric pole is manually cut and the portion of the PC steel wire is cut by an acetylene gas cutting machine or the like, which requires a great deal of labor and time.

The present invention has been made in view of the above points, and an object of the present invention is to provide a columnar object removing device that can easily and reliably cut and remove a columnar object even in a place where it is difficult to secure a work place.

(Means for Solving Problems) In order to solve the above problems, the columnar object removing device of the present invention is
A support mechanism axially supported by a support shaft, comprising a ring-shaped inner body and a ring-shaped outer body partially having a notch portion, and a sandwiching member for sandwiching and supporting a columnar object in the inner side of the ring-shaped inner body, the support mechanism being opposed to each other; A cutting mechanism which is attached to a support shaft so as to be able to move up and down, and which comprises an annular inner body having a notch in a part thereof and an annular outer body, and a cutting means for cutting a columnar object facing the inner side of the annular inner body. A gripping mechanism that is pivotally supported by the support shaft, has a notch in a part thereof, and has a sandwiching member facing the inside, and grips the cutting and removing part of the columnar object.

(Operation) In the columnar object removing device of the present invention, the columnar object to be removed is lifted by the supporting mechanism by itself to support it at a predetermined position, and then the cutting mechanism supported by the supporting mechanism so as to be vertically movable is operated to form the columnar object. Cut and remove from the top of the object. Then, the support mechanism is operated to lower the columnar object, and the cutting operation is repeated again.

Further, in the present invention, it is preferable that the support mechanism is provided with a gripping mechanism so that the columnar object can be removed without dropping if the cutting and removing section is pinched.

(Embodiment) Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of the columnar object removing device of the present invention, FIG. 2 is a plan view of a support mechanism, FIG. 3 is a plan view of a cutting mechanism, FIG. 4 is a plan view of a gripping mechanism, and FIG. It is a figure which shows the state which sets a thing removal device to a columnar object.

In the figure, reference numeral 1 is a columnar object removing device, which is used when removing a columnar object S such as a utility pole, and is provided with a support mechanism A, a cutting mechanism B, and a gripping mechanism C.

As shown in FIG. 1, the support mechanism A includes a first clamp 11 and a second clamp 12, both of which are connected by a connecting mechanism 13. The connecting mechanism 13 includes an upper arm portion 14 provided on the first clamp 11 and a second clamp 1
The lower arm portion 15 provided in 2 is connected by a joint 16,
It is possible to fold these back and forth. A cylinder mechanism 17 is installed between the upper arm portion 14 and the lower arm portion 15, and the coupling mechanism 13 is bent around the joint 16.

The first clamp 11 and the second clamp 12 have a columnar object S.
Since both of them have the same structure, the first clamp 11 will be described based on FIG. 2, and the description of the second clamp 12 will be omitted.

As shown in FIG. 2, the first clamp 11 is composed of an annular inner body 18 and an annular outer body 19 which are slidably engaged, and the annular inner body 18 and the annular outer body 19 respectively include one of them. The part can be inserted into the notched columnar object S.

Cylinders 20, 2 are provided at positions facing the annular inner body 18.
1 is provided, and at the tips of the cylinders 20 and 21, sandwiching members 22 and 23 are provided so as to be able to advance and retract toward the inside, and by supplying fluid pressure to the cylinders 20 and 21,
The columnar object S is pressed to support the support mechanism A on the columnar object S.
One of the sandwiching members 22 and 23 may be fixed to the annular inner body 18 without using a cylinder.

Further, the annular inner body 18 and the annular outer body 19 can be rotated with respect to the annular inner body 18 by the operation of the rotation drive mechanism 24. That is, in a state where the columnar object S is pinched by the sandwiching members 22 and 23 arranged to face the annular inner body 18, the rotary drive mechanism 24 is driven to move the annular outer body 19 to the annular inner body 18. The orientation of the support mechanism can be changed by rotating the support mechanism.

In this embodiment, the support mechanism A is provided with two first clamps 11 and two second clamps 12 so that it can be easily attached to the pillar S by the carrier as described later.
The number of clamps may be one.

As shown in FIG. 1, the cutting mechanism B includes a first clamp 1
It is slidably supported by a support shaft 31 provided on the slide shaft 1, and can be moved up and down along a sliding portion 32 by an elevator mechanism (not shown).

If the first clamp 11 and the second clamp 12 are connected by, for example, a fluid pressure cylinder so that they can be brought close to each other, even if the cutting mechanism B is fixed and supported by the first clamp 11, the first clamp 11 By alternately raising and lowering the second clamp 12 and the second clamp 12, the columnar object can be raised and lowered.

As shown in FIG. 3, the cutting mechanism B is composed of an annular inner body 33 and an annular outer body 34 which are slidably engaged, and the annular inner body 33 and the annular outer body 34 cut a part thereof. Missing pillar S
It can be attached to.

Cylinders 35, 3 are provided at positions facing the annular inner body 33.
6 is provided, and cutting blades 37, 38 are provided at the tips of the cylinders 35, 36 so as to be capable of advancing and retracting inward, and the columnar object S is cut by supplying fluid pressure to the cylinders 35, 36. .

Further, the annular inner body 33 is operated by the rotation drive mechanism 39,
The columnar object S can be cut by rotating in opposition to the annular outer body 34 to change the positions of the cutting blades 37, 38.

The cutting mechanism B may be a method in which the columnar object S is pinched and pushed from both sides in this way, or a structure in which a saw-like cutting blade is operated by opening and closing the fluid cylinder to cut.

As shown in FIG. 1, the gripping mechanism C is rotatably provided above the cutting mechanism B on the support shaft 31 provided in the support mechanism A, and sandwiches the cutting and removing portion of the columnar object S. , As shown in FIG.

That is, the arm 41 that constitutes the gripping mechanism C is rotatably supported by the support shaft 31, and is rotated at an arbitrary angle by a rotation mechanism (not shown). The arm 41 is provided with cylinders 42 and 43 at opposite positions.
Clamping members 44 and 45 are provided in 43 so as to be able to advance and retract toward the inside, and by supplying fluid pressure to the cylinders 42 and 43, the cutting and removing portion of the columnar object S is held by clamping and cut by cutting. It supports the removal part and prevents it from falling.

As shown in FIG. 1, the support shaft 31 is provided in a support mechanism A, the cutting mechanism B is slidably provided in the support shaft 31 as described above, and the gripping mechanism C is rotatably supported. Has been done. A pole 50 is provided on the upper portion of the support shaft 31 so as to be expandable and contractable by a cylinder mechanism (not shown). A rope 51 is provided above the pole 50,
The rope 51 supports the cutting and removing portion of the columnar object S.

Instead of the rope 51, a chain or the like may be used to support the cutting and removing section. Further, the pole 51 may be housed in the support shaft 31 when it is not used.

The columnar object removing device 1 is set on the columnar object S as shown in FIG. That is, it is transported to the work site by the truck T, and first, the first clamp 11 is fixed to the pillar S. Next, the second clamp is loosened to release the holding body H of the track T and the holding body H of the track T is released, and the cylinder mechanism 17 is operated to extend the connecting mechanism 13. As a result, the connecting mechanism 13 becomes a straight line in the vertical direction, and the columnar object S intervenes between the clamping members of the second clamp 12 and is clamped to the columnar object S.

As described above, the columnar object removing device 1 as a whole has the track T.
It is attached to the pillar S by itself from a carrier such as a vehicle, and is stably fixed to the pillar S by itself.

When the columnar object removing device 1 is moved to the truck T after the work is completed, the above work procedure may be reversed.

Hereinafter, the removal of the columnar article S by the columnar article removal apparatus 1 configured as described above will be described.

The columnar article removing device 1 with the columnar article S attached holds the columnar article S by the support mechanism A and the grasping mechanism C, and raises the cutting mechanism B to grasp the columnar article S. In this state, the support mechanism A
Also, the gripping mechanism C is opened, and the support mechanism A and the gripping mechanism C are raised with respect to the cutting mechanism B.

In this raised position, the support mechanism A and the gripping mechanism C
Grips the columnar object S, releases the grip of the cutting mechanism B in this state and raises it, and at this raised position, the cutting mechanism B
The columnar object S is gripped by and is raised by repeating this.

This raising may be performed by the support mechanism A and the cutting mechanism B, or by the grasping mechanism C and the cutting mechanism B instead of the support mechanism A.

When the columnar article cutting / removing device 1 is raised to a predetermined position of the columnar article S, that is, when it is raised to the position shown in FIG. 1, for example, the rope 5 provided on the pole 50 of the support shaft 31 at this position.
1 is attached to the columnar article removing part, and the columnar article removing part is set in a state in which it can be cut. In this state, the cutting mechanism B is operated to cut a predetermined portion of the columnar object S, the gripping mechanism C is rotated 90 degrees to a position where it does not interfere with the columnar object S, and the columnar object removing device 1 is lowered. This lowering operation is performed by operating the support mechanism A, the gripping mechanism C, and the cutting mechanism B, contrary to the above-described raising operation, and the columnar object removing portion is loaded on the vehicle or the like.

In this way, the pillars S are sequentially cut from above to remove all the pillars S.

(Effects of the Invention) As described above, the columnar object removing device of the present invention includes a support mechanism that grips and supports a columnar object, and a cutting mechanism that cuts the columnar object that is provided on the support mechanism so as to be lifted and cut. Since it has a gripping mechanism for holding the removal part, it has the following points as compared with the conventional one.

That is, the columnar removal in a building column vehicle requires a large parking and working space, and it is difficult to work in a narrow place because it obstructs traffic, but according to the columnar removal device of the present invention, when the columnar object is set, You can remove the transport vehicle that obstructs the traffic, the working space is small, and the cutting and removing part of the columnar object is held by the gripping mechanism, so it does not fall on the ground, obstructing the traffic or making it dangerous. Never exposed.

Further, in the case of cutting by human power, since the worker has to climb a utility pole or the like, work is performed at a high place, which is dangerous and requires a lot of labor. Moreover, the PC steel wire cannot be cut manually by using a clipper, so it is necessary to use an acetylene gas cutting machine or the like. Furthermore, it is necessary to consider hanging the cut-and-removed part with a crane or the like to prevent danger such as falling prevention.

On the other hand, according to the pillar removing device of the present invention, the operation of the machine can be performed on the ground, and the cutting and removing can be performed by the same machine, and the time and labor can be reduced.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a front view of a columnar object removing device of the present invention, FIG. 2 is a plan view of a supporting mechanism A, FIG. 3 is a plan view of a cutting mechanism, and FIG. The drawing is a plan view of the clamp, and FIG. 5 is a view showing a state in which the columnar object removing device is set on the electric pole. 1 ... Columnar removing device, A ... Support mechanism B ... Cutting mechanism, C ... Gripping mechanism

Claims (1)

[Claims] 1. A sandwiching member, which is axially supported by a support shaft and has an annular inner body and a circular outer body, each of which has a notch in a part thereof, and which sandwiches and supports a columnar object inside the annular inner body. Opposed cutting means for cutting the columnar object to the inner part of the annular inner body, which is composed of the arranged support mechanism and an annular inner body partially attached with a notch in the support shaft so as to move up and down, and an annular outer body. A columnar article removing device comprising a cutting mechanism arranged and a grasping mechanism which is axially supported by a support shaft and has a notch in a part thereof, and a clamping member is arranged to face each other on an inner side to grasp a cutting and removing section of the columnar object.