JPH0513202B2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a pile driving device.

<Conventional technology> An example of a conventional pile driving device using a heavy plow is shown in the fourth example.
As shown in the figure.

This type of piling device is a device in which a leader b is suspended from the tip of a boom a, and a heavy peg c is moved up and down along the leader b to drive a pile d.

<Problems with conventional technology> However, this type of device requires a great deal of effort and skill when setting the position where the pile is to be driven.

In other words, several workers hold the bottom end of the heavy leader, and while communicating with the operator, lift it up a little and shift its position little by little.
This is to position the bottom end of the soda.

This not only required a great deal of effort and skill, but also took time to position and was dangerous because it involved moving a heavy object.

<Objective of the present invention> The present invention was made to improve the above-mentioned problems, and it is possible to easily set the pile driving position in a short time, and to ensure safe work. The purpose is to provide a pile driving device that can.

<Configuration of the present invention> Next, examples of the present invention will be described.

<A> Overall configuration In Fig. 1, 1 is a main body rotatably mounted on a running belt 2, and a boom 3 is attached to the main body 1 so as to be able to rise and fall.

At the tip of the boom 3, attach the leader 4 to the horizontal pin 3.
1 supports it rotatably, and the leader 4 has a heavy peg 41.
be installed so that it can be moved up and down.

<B> Attaching the boom and leader The leader 4 is a framework made by connecting two vertical boards with horizontal members.

The heavy peg 41 is located in a space between two vertical plates, and moves up and down within the space.

Horizontal pins 3 are placed on each outside of both vertical plates of this leader 4.
1 protrudes, and the leader 4 and boom 3 are rotatably attached via this horizontal pin 31.

Since the horizontal pin 31 does not protrude into the space within the vertical plate, the vertical movement of the heavy peg 41 is not hindered by the horizontal pin 31, and the top of the leader 4 can be effectively used as a working range.

<C> Attaching the sheave The sheave 5 is rotatably attached to the top of the leader 4 via a sheave shaft 51.

One of the features of the device of the present invention is that the sheave 5 is not attached to the boom 3 side but is attached to the leader 4 side.

Since the sheave 5 is attached to the top of the leader 4, the radius of the sheave 5 is not affected by the cross-sectional dimension of the boom 3, and the sheave 5 with the smallest bendable dimension of the wire w can be adopted.

<D> Arrangement of the sheave shaft and pins (Fig. 2) The sheave shaft 51 and pin 31 are connected to the vertical line L1 passing through the center of the sheave shaft 51 and the vertical line of the wire w for hanging the heavy plow 41 hanging from the sheave 5. The vertical line L3 passing through the pin 31 is positioned between the pin 31 and L2.

As a result of this arrangement, the wire w is
By winding the leader 4 to the side, the leader 4 is attached to the main body 1.
It can give the force to move away from the object. (Fig. 3) <Effects of the present invention> As described above, in the present invention, the sheave is attached not to the boom side but to the leader side.

Furthermore, the leader can be moved away from the aircraft by pulling the wire.

Therefore, when setting the pouring position, first pull the wire to swing out the leader a little, and then gradually loosen the wire.
The reader can be returned to the aircraft side and set directly above the designated position.

Therefore, positioning work is easy and can be done safely within a short time.

[Brief explanation of the drawing]

Figure 1: A perspective view of an embodiment of the pile driving device of the present invention, Figure 2: An explanatory diagram of the attachment state of the boom and leader, Figure 3: An explanatory diagram of the leader swinging out state, Figure 4: Conventional An explanatory diagram of a pile driving device. 1... Main body, 2... Running belt, 3... Boom, 4
...Leader, 5...Thieves.

Claims (1)

[Claims] 1. A leader is supported by a pin at the tip of a boom, a sheave is attached to the upper end of the leader, and a line between a vertical line passing through the center of the sheave and a heavy plow lifting wire hanging from the sheave. , A pile driving device configured by locating the pivot pin of the leader.