JPH09296447A - Device for drawing-out pile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To draw out a pile driven in the ground with a small force and a simple device. SOLUTION: A horizontal piece 2 contacting one side face of a pile B is provided at the front end of a lever 1 inclined forward And the underface of the front end side of the lever is positioned to contact a support member C provided on the ground near the pile B driven in the ground surface A so as to expose a part thereof above the ground. The basal end of a rotary piece 4 is pivotted at a position a little separated from the front end of the lever 1 toward the rear end and the front end thereof is further extended forward than the horizontal piece 2. And a horizontal fitting piece 7 is provided so as to fit to the opposite side face against the horizontal piece 2 of the pile B, at the side face of the front end of the rotary piece 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple pile removing machine capable of removing a pile driven into the ground with a small force.

[0002]

2. Description of the Related Art Conventionally, in order to extract a pile struck on the ground from the ground, grasp the pile with a hand and pull it out as it is, or remove the soil around the pile in advance with a scoop or the like.
Often the stakes are pulled out by hand.

[0003]

As described above, it takes a considerable force to pull out a pile manually, and it is difficult to pull out a pile that is struck deep in the ground.

If the soil around the pile is removed before the pile is pulled out, the pile can be pulled out with a small force, but the work of removing the soil is troublesome.

The present invention has been made in view of the above-mentioned problems of the prior art, and requires a small force and
An object of the present invention is to provide a simple pile removing machine capable of removing a pile struck on the ground by a simple operation.

[0006]

According to the present invention, the above-mentioned problem is solved as follows. (1) Apply the bottom surface near the front end to the fulcrum member provided on the ground near the pile that was driven into the ground so that part of it is exposed to the ground, and attach it to the front end of the lever lever that is inclined forward and downward. ,
A lateral abutting piece that abuts one side surface of the pile is provided, and a base end portion is pivotally attached to a part of the lever rod slightly distant from the front end to the rear end side, and the tip end is forward of the abutting piece. On the side surface of the tip end portion of the rotating piece that is extended to the side, a lateral engagement piece that opposes the contact piece and engages with the side surface of the pile opposite to the contact piece. Set up.

(2) In the above item (1), at least one of the abutting piece and the engaging piece has a laterally cylindrical shape.

(3) In the above item (1) or (2), a plurality of lateral anti-slip ridges are provided at a portion of the abutting piece and / or the engaging piece that abuts at least one of the piles. .

(4) In any one of the above items (1) to (3), a plurality of lateral projections are provided on a portion of the lower surface near the front end portion of the lever rod which is brought into contact with the fulcrum member.

[0010]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the lever rod (1) made of a substantially linear rod is abutted at the front end (the right side in FIG. 1 is the front) with a laterally short cylindrical shape. The piece (2) is fixed by welding or the like, and a mounting plate (3) facing upward is fixed to one side surface of the lever rod (1) near the front end.

At the portion of the mounting plate (3) slightly rearward of the front end of the lever (1), the base end of the turning piece (4) is provided with a step bolt (5) and a nut (6). Is pivotally attached so as to be rotatable and detachable.

The tip of the turning piece is turnable forward of the contact piece (3), and one side surface of the tip has a short horizontal cylindrical shape similar to the contact piece (3). The engaging piece (7) is an abutting piece.
It is fixed so as to face (3).

On the surfaces of the contact piece (3) and the engagement piece (7) facing each other, a plurality of anti-slip ridges (8) (9) oriented in their axial direction are provided, respectively. There is.

Reference numeral (10) is a bottom member fixed to the lower surface of the lever rod (1) near the front end portion, and the lower surface is provided with a plurality of lateral projections (11).

Next, referring to FIGS. 3 and 4, the pile punching machine of the present embodiment is used to remove the pile (B) driven into the ground (A) so that a part of the pile is exposed to the ground. Explain how to pull out.

First, for example, a mallet (C) used when driving the pile (B) is placed as a fulcrum member at a position separated from the pile (B) on the ground (A) by a predetermined distance. Mallet (C)
Any position of the bottom member (10) is applied to the lever (1) and the lever (1) is tilted so as to be lowered forward.

At this time, the abutting piece (2) is attached to the front side of the pile (B),
That is, the side surface close to the mallet (C) is contacted, and the engaging piece (7)
Are brought into contact with the side surface of the pile (B) opposite to the contact piece (2).

In this state, when the rear end of the lever (1) is pushed down, the lever (1) rotates in a seesaw manner with the contact point between the bottom member (10) and the mallet (B) as a fulcrum. As the contact piece (2) at the front end of the lever rod (1) moves and is lifted while biting into the pile (B), the pile (B) is pulled upward.

At first, the engaging piece (7) is only in contact with the side surface of the pile (B) by its own weight, but as the front end of the lever (1) rises, the engaging piece (7) becomes The angle formed by the turning piece (5) becomes gradually smaller, and the turning piece (4) is relatively pulled toward the contact piece (2) side by the principle of the toggle link, so that the pile (B) is moved. The pile (B) can be tightened gradually toward the abutment piece (2), and the pile (B) is abutting piece (2) and engaging piece (7).
It becomes difficult to come off from between.

As described above, the pile removing machine of this embodiment is provided with a lever rod.
(1) The rear end side is the force point, the bottom member (10) is the fulcrum, and the abutment piece (2) at the front end of the lever rod (1) is the action point. With this, the pile (B) driven into the ground (A) can be easily pulled out, and the operation is also easy.

Since the abutment piece (2) and the engagement piece (7) are provided with laterally-slip projections (8) and (9), the pile (B) can be securely held. it can. In addition, since the lateral projections (11) are provided on the lower surface of the bottom member (10), the lever (1) and the mallet (C) are moved between the lever (1) while the lever (1) is being rotated. It is possible to prevent slippage between them. Therefore, even if a stone or any other object is used as the fulcrum member instead of the mallet (C), the lever bar (1) can be smoothly rotated.

Further, in this embodiment, the lever (2) is formed into a cylindrical shape and is pressed against the pile (B), so that the lever lever is provided.
When (1) is rotated from the state shown in FIG. 3 to the state shown in FIG. 4, the cylindrical contact piece (2) is slightly moved by the amount corresponding to the rotation angle of the lever rod (1). There is an advantage that the rotation of the pile (B) causes the pile (B) to be slightly pushed upward by rolling contact, which assists withdrawal of the pile (B) by the lever principle.

At this time, the amount of feed of the pile (B) to the upper side is very small, but the force at that time is the force acting on the force point.
(F) x total length of lever (1) / radius of abutment piece (2), so a remarkably large force is obtained, which contributes to ease of pulling out the pile (B).

[0025]

According to the present invention, the following effects can be obtained. (a) The lever principle is used, where the rear end side of the lever is the force point, the middle part of the lever member is the fulcrum, and the abutting piece at the front end is the action point. The pile can be pulled out and the operation is simple (Claim 1).

(B) According to the second aspect of the invention, since at least one of the abutment piece and the engagement piece has a cylindrical shape, the abutment piece and the engagement piece can be formed even if there is a slight variation in the diameter of the pile. The engagement piece can always stably contact the surface of the pile. As a result, in the state where the contact piece and the engagement piece are in pressure contact with the surface of the pile, the front end side of the lever bar can be smoothly raised and the pile can be smoothly pulled out. Further, when the contact piece is cylindrical, as described above, the rotation of the lever causes the cylindrical contact piece to rotate slightly, and the rotation of the contact piece causes the pile to be fed upward. Has the advantage of contributing to the ease of pulling out the pile.

(C) According to the third aspect of the invention, since the sideways anti-slip ridges are provided on at least one of the abutment piece and the engagement piece, slippage between them and the pile is prevented. Can be prevented and the pile can be securely held and pulled out.

(D) According to the invention described in claim 4, since the lateral projection is provided on the lower surface of the lever rod, slippage between the lever rod and the fulcrum member can be prevented, and the lever rod can be prevented. Can be smoothly rotated around the fulcrum member.

[Brief description of drawings]

FIG. 1 is an external perspective view of one embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a side view showing a state just before the pile is pulled out by the pile pulling machine.

FIG. 4 is a side view showing a state in which the pile is pulled out by the same pile pulling machine.

[Explanation of symbols]

 (1) Lever (2) Abutment piece (3) Mounting plate (4) Rotating piece (5) Stepped bolt (6) Nut (7) Engaging piece (8) (9) Ridge (10) Bottom Material (11) Ridge (A) Ground (B) Pile (C) Mallet

Claims (4)

[Claims] 1. A lever bar tilted downward to the front by contacting a lower surface near the front end with a fulcrum member provided on the ground near a pile driven into the ground so that a part of the lever is exposed to the ground. The front end is provided with a lateral abutting piece that comes into contact with one side surface of the pile, and the base end portion is pivotally attached to a part of the lever rod slightly distant to the rear end side from the front end, and the tip end portion is abutted. A laterally-engaged engagement member that opposes the contact piece and engages with a side surface of the pile opposite to the contact piece on the side surface of the tip end of the rotating piece that extends forward of the contact piece. A pile removing machine characterized by having a joint piece. 2. At least one of the contact piece and the engagement piece,
The pile removing machine according to claim 1, which has a horizontally-oriented cylindrical shape. 3. A plurality of lateral anti-slip ridges are provided at a portion of the abutting piece and / or the engaging piece that abuts at least one of the piles. Piling machine. 4. The pile puncher according to claim 1, wherein a plurality of lateral projections are provided at a portion of the lower surface of the lever rod near the front end portion to be brought into contact with the fulcrum member. Machine.