JPS5847078Y2 - Pile extractor - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a pile extractor that is mainly applied to wooden piles driven for agricultural purposes.

Cultivation of rushes or other agricultural products may require driving a large number of stakes, but once the cultivation of the piles is completed, the stakes will become an impediment to the next cultivation of other varieties. So I need to pull this out.

Since the ground surface of agricultural land is soft and there are many piles driven into the ground, it is important that agricultural piles can be easily transported and moved, and that they can be pulled out easily and quickly. It is desired that the wooden piles be obtained without damaging the wooden piles when pulled out.

This invention was developed in response to the above-mentioned request, and its purpose was to suspend the connecting part of the trouble joint link from the front end of the handle, which acts as a lever with the upper part of the support as a fulcrum, at the bottom of the traction rod. and the ends of the links of the trouble joint are respectively connected to the upper ends of the chucking arms which are connected in an intersecting manner at the intersecting portions, and the connecting portions and the intersecting portions are fitted and inserted into the pillars. The chucking arm is fixedly attached to the sliding body, and the chucking arm is provided with a pair of hooking claws to enable continuous and quick pile removal operations, and to pull out the pile almost parallel to the support. Therefore, the present invention provides an inexpensive pile extractor that can minimize damage to piles, has a simple structure, is lightweight, and is easily movable.

This invention will be explained below based on embodiments shown in the accompanying drawings.

1 is plywood, and the center front part of this base plate 1 has a concave cavity 2.
It is formed.

A column 3 is erected on the upper surface of the base plate 1, and the front part of a handle 4 is pivotally supported at the upper end of the column 3, so that the handle 4 performs a lever action using this pivot support 5 as a fulcrum. .

A traction rod 6 is hooked to the front end of the handle 4.

The connecting portions 7 of the links 8, 8 of the trouble joint are connected by a hanging metal fitting 9, and this hanging metal fitting 9 is suspended from the lower end of the traction rod 6.

The other end of the trouble joint link 8.8 is connected to the upper end of the catching arm 10.10.

Catching arm 10.10 Its center part intersects 11
A pair of lower clamping claw plates 12.
12 is swingably attached.

An upper clamping claw plate 13 is attached to the upper part of the intersection part 11 so as to be able to swing.
13 was established.

The upper clamping pawl plate 13j3 is connected to the catching arm 1 so that it can perform a common clamping action with the lower clamping pawl plate 12.12.
0.10, the upper clamping pawl plate 13.13 is attached in a bent manner near the position.

The hanging fitting 9 of the connecting part 7 of the trouble joint and the crossing part 11 of the catching arm 10.
6, respectively.

The clamping claw plates 12 and 13 disposed at the upper part and the width part have a concave curved shape along the outer peripheral surface of the wooden stake a, and the upper and lower ends thereof are designed to swing back and forth around the support shaft. It's Nishide.

Further, the upper clamping claw plates 13, 13 and the lower clamping claw plate 12゜12 have a reinforcing plate 17.17 protrudingly fixed to the mounting portion of the catching arm 10.10.
It is swingably provided at the tip.

Since this device has the above-mentioned configuration, when the bundle 4 is pressed downward, the traction rod 6 is pulled up by lever action using the shaft support as the fulcrum 5, and the link 8 of the trouble joint is pulled up.
. At the same time, a movement parallel to the support column 3 is applied.

The upper and lower clamping claw plates 13 and 12 are designed to perform equal clamping action at the same time, so when pulling out the wooden stake a, etc., the upper and lower clamping claw plates 13 and 12 have a stronger clamping and pulling action. The stability is good because it performs the following steps.

When the rear part of the bundle 4 is lifted, the traction rod 6 is lowered, so that the links 8, 8 of the trouble joint and the opening of the catching arm are in an open state. However, when the rear part of the bundle 4 is pushed down, , the traction rod 6 lifts up, and the upper and lower clamping claw plates 13, 12 pull out the wooden stake a in parallel with the support column 3 together with the sliding body 14, 15 while still clamping the wooden stake a.

At the same time as releasing the pressure on the bundle 4, the traction rod 6 descends,
The clamping claw plate 12.13 releases the clamping of the main pile a.

Therefore, by applying continuous lifting and lowering operations to the bundle 4, the wooden stakes a are continuously pulled out in a certain range.

As mentioned above, this device suspends the connecting portions of the links 1 to toggle joints from the lower part of the traction rod that hangs down from the front end of the bundle, which acts as a lever with the strut portion as the fulcrum. The end of the joint link,
The chucking arms are connected to the upper ends of the chucking arms that are connected in a cross-shaped manner at the crossing portions, and the connecting portions and the crossing portions are fixed to a sliding body fitted into the support. Because the stake is equipped with a hook, the stake can be pulled out parallel to the support without any difficulty, and the wooden stake will not break or break.
Since damage at the pinched portion can be effectively avoided, it is also possible to reuse wooden stakes, etc. once extracted.

The removal of wooden piles or the like at fixed length intervals can be carried out quickly by continuous lifting and lowering of the bundle, making it possible to easily complete the pile removal work in a short time.

1 to bundle join 1 by a bundle with leverage
- is operated, so the clamping of main piles, etc. is reliable, and the work of removing piles can be performed accurately.

Furthermore, since the structure is simplified, the overall weight is light and transportation is easy.

It has the advantage of being easy to handle, especially when moving and installing on relatively soft cultivated land.

[Brief explanation of drawings]

The drawings show an embodiment of this invention; FIG. 1 is a front view, FIG. 2 is a side view, and FIG. 3 is a plan view. 3... Prop, 4... Bundle, 6...
...Traction rod, 7...Connection part, 8...
・Link, 10... Catching arm, 11
......Cross point,]2...Lower clamping claw plate,
13... Upper clamping claw plate, 14... Upper sliding body, 15... Lower sliding body.

Claims (3)

[Scope of utility model registration request] (1) ) Connecting part 7 of link 8 of the rubble joint,
It is suspended from the lower part of a traction rod 6 that hangs down from the front end of a handle 4 that acts as a lever using the upper part of the pillar 3 as a fulcrum,
In addition, connect the end of the link 8 of the trouble joint to the intersection 1.
1 are connected to the upper ends of the chucking arms 10 connected in a cross-shaped manner, and the connecting portion 7 and the crossing portion 11
A pile extractor characterized in that the chucking arm 10 is provided with a pair of clamping pawl plates 12 and 13, and the chucking arm 10 is provided with a pair of clamping claw plates 12 and 13. (2) The pile extractor according to claim 1, wherein the clamping claw plates 12 and 13 are provided at two locations on the upper side and the lower side of the chucking arm 10. (3) Claims 1 or 2 of the above utility model registration, characterized in that the clamping claw plates 12 and 13 are pivotally supported in a swinging manner.
Pile extractor as described in section.