JPH0423051B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a working machine that can be conveniently used for tasks such as transplanting trees, erecting utility poles, etc., digging in left and right directions, and forklifting. .

[Conventional technology]

Conventionally, various types of civil engineering and other working machines have been provided, but as special ones, the machines shown in Figs.
Figure 4 shows a tree transplanting machine shown in Publication No. 53-23644. In the figure, 92 is an arm, 94
is a bucket, and 95 is a clamp piece.

This tree transplanting machine digs a hole with a pair of left and right buckets 94 attached to the tip of an arm 92.
Dig up the tree, clamp the tree with clamp pieces 95,
It is proposed for use in roping and moving around roots.

[Problem to be solved by the invention]

Conventional civil engineering machines have functions corresponding to each work purpose. In addition, the tree transplanting machine shown in the above publication can be conveniently used for root-roping, transplanting, etc. of trees, but the Bucket 94 has constant spacing in the left and right direction, so Excavation work is not adaptable. Furthermore, since the clamp piece 95 is also in a fixed position, it may be difficult to adapt it to the shape of the tree. Another problem is that it is difficult to use for tasks other than transplanting trees.

This invention was made to solve the above-mentioned problems, and it not only facilitates transplanting regardless of the size of the tree and the shape of the trunk and branches, but also makes it suitable for erecting pillar-shaped objects such as utility poles. Another object of the present invention is to provide a working machine that can be conveniently used for civil engineering work such as trenching in the horizontal direction of the front, and forklift work for grabbing and moving objects.

[Means to solve the problem]

The working machine according to the present invention includes a pair of booms that can be raised and lowered on a swivel base on a self-propelled cart, and an arm that can be turned left and right is attached to the tip of the boom.
The tip of the arm is equipped with a bucket that can be swung left and right, and the arm is equipped with scissors that can be moved up and down.

[Function] The working machine of the present invention is equipped with a pair of booms that can be raised and lowered, a pair of arms that can be tilted in the left and right directions, and a pair of buckets that can be swung in the left and right directions. By making full use of the functions of the elements, it is possible to efficiently and powerfully dig a hole in the desired location, size, and depth. Moreover, since the scissors can be moved up and down, they can be held with good adaptability regardless of the size or shape of a tree, utility pole, or other object to be moved.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1 to 8 show a working machine according to an embodiment of the present invention, in which FIG. 1 is a side view, FIG. 2 is a front side perspective view, and FIG. 3 is a front perspective view of an arm, bucket, etc. Fig. 4 is a plan view of the boom, arm, etc., Fig. 5 is a plan view of the boom, arm, etc. in another state, Fig. 6 is a front view, Fig. 7 is a plan view of the scissors, etc., and Fig. 8 is a modified version. It is a top view of an example scissors etc.

In the figure, 1 is a rotating base, 2 is a boom, 3 is an arm, 4 is a bucket, 6 is a counterweight,
10 is a self-propelled trolley, 51 is a first scissors, 52 is a second scissors, 21 is a hydraulic cylinder that raises and lowers the boom 2, 31 is a hydraulic cylinder that changes the angle of the arm 3, and 41 is a rake angle of the bucket 4. 511 is a hydraulic cylinder that raises and lowers the first scissors 51, and 53 is a hydraulic cylinder that opens and closes the scissors 51 and 52.

The self-propelled truck 10 is a crawler type or wheel type truck that can be self-propelled by power such as an internal combustion engine. A swivel base 1 that can rotate horizontally is mounted on a self-propelled cart 10, and on the swivel base 1 are a pair of booms 2, 2, a driver's cab 7, a counterweight 6, etc., which are installed in parallel on the left and right. is installed. The pair of booms 2, 2 can be raised and lowered by boom hydraulic cylinders 21, 21, respectively. The counterweight 6 serves as a water tank, and its weight can be easily adjusted. In the case of transplanting a tree, water from the tank of the counterweight 6 can be applied to the root of the tree after the transplant is completed.

At the tip of each of the booms 2, 2 extending forward, shafts 23, 23 extending in the substantially axial direction of the booms 2, 2 are provided, and by fitting and attaching to these shafts 23, 23, the arms 3, 3 It is attached so that it can swing left and right. As shown in Figures 4 and 5,
The arms 3, 3 are pushed and pulled diagonally by a pair of arm hydraulic cylinders 31, 31 provided diagonally and intersectingly between the booms 2, 2 and the arms 3, 3, so that the arms 3, 3 can be moved from side to side. It is driven to change the angle in the direction. The heights of the boom mounting hardware are different so that the cylinders 31 and 31 do not collide.
Reference numeral 22 denotes a detachable connecting rod that connects the left and right booms 2, 2 for reinforcement.

A bucket belt 4, 4 is attached to the tip of each arm 3, 3, and the bucket belt 4, 4 is driven by bucket belt hydraulic cylinders 41, 41 to change the rake angle in the left-right direction.

Each arm 3, 3 has a first scissors 5, respectively.
1, 51, and second scissors 52, 52 are attached, and the first scissors 51, 51 are driven up and down by hydraulic cylinders 511, 511 along the arms 3, 3, and can be stopped at any position. It is. Each pair of scissors 51, 51, 52, 52 is driven to open and close by a hydraulic cylinder 53 provided in each pair of scissors. The shape of the scissors 51 and 52 is
It may be rod-shaped as shown in Fig. 7, it may be dogleg-shaped as shown in Fig. 8, it may be curved, or it may be shaped appropriately for the object to be held. Bye. In that case, it is desirable that the pins 56 that connect the scissors 51 and 52 to the scissor support frame 54 and the pin 57 that connects to the hydraulic cylinder 53 be easily attachable and detachable. The scissors support frames 54, 54 of the scissors 51, 51, which can be raised and lowered, are provided with necessary rollers 55, and the arms 3
Alternatively, it can be moved up and down along a guide such as a rail or groove provided on the arm 3, and is driven up and down by a hydraulic cylinder 511 so that it can be stopped at any position. Note that the power for the rotation movement of the swivel table 1, the expansion and contraction movement of each hydraulic cylinder, etc. may be provided by a hydraulic system driven by, for example, the internal combustion engine.

Hereinafter, a method of using a working machine according to an embodiment of the present invention will be explained. First, the case where it is used for transplanting trees will be explained. To dig a hole in the transplant destination land, the self-propelled cart 10 is used to move, the direction is adjusted using the swivel base 1, the booms 2, 2 are raised and lowered using hydraulic cylinders 21, 21, and the arm 3 is moved using hydraulic cylinders 31, 31. ，
3, move buckets 4, 4 with hydraulic cylinders 41, 41, and dig a hole. In this case, conventional bucket hoes and shovels only dig in the near or forward direction, but with this work machine, two buckets face each other laterally to scoop up the material, so the work efficiency is high. Furthermore, compared to the above-mentioned tree transplanting machine, this working machine has a variable angle drive arm, so it has a high degree of freedom in its work.

Next, excavate the base of the tree in the same way as above, and if the tree is small, dig out 4 buckets at a time.
You can scoop it up with 4. In the case of large trees, dig around the roots of the tree with a bucket 4.
At that time, the booms 2, 2, arms 3, 3, and buckets 4, 4 can be moved freely by each hydraulic cylinder, so a hole of the desired shape can be dug around the roots, and You can dig out the roots in the same way. In the conventional example described above, since the position of the bucket is fixed, it is difficult to dig out a large tree properly.

Next, the trunk and branches of the tree are held and lifted using the scissors 51, 51, 52, and 52, and a rope is tied to the base. Next, while supporting the base of the tree with buckets 4, 4, the trunk and branches are held and transported with scissors 51, 51, 52, 52. At that time, scissor hand 5
1 and 51 can be moved up and down, so by setting the scissors 51 and 51 at appropriate positions according to the shape of the tree and holding the tree, the tree can be held securely without being damaged. There is no problem in transporting and planting at the destination. After planting, it is also possible to drain the water in the tank of the counterweight 6 and water the tree.

Next, the work of erecting a columnar object such as a telephone pole will be explained. Bucket the telephone pole that has been knocked down on the ground 4,
4, move arms 3, 3, etc. to lift it, and stand it up while supporting it with scissors 51, 51, 52, 52. Next, scissors 51, 51, 52,
52, scoop up the base of the pole with buckets 4 and 4, hold the pole, and lift the boom 2,
2. Move arms 3, 3, etc. to adjust the posture and transport. At the construction site, scissors 51, 51, 52, 5
Lower and stand the utility pole while holding it with 2, move the machine using each hydraulic cylinder to vertically erect the utility pole, and embed it.

Next, I will explain the work of creating a groove parallel to the stone wall from the bottom of the stone wall to the land above the stone wall, for example, on land with steps such as a stone wall. For this kind of work, conventional excavators and shovels scoop earth and sand forward or backward in the direction of work, so it is not easy to dig trenches in the front and left and right directions, and it is necessary to dig deep trenches. I couldn't do that. On the other hand, the working machine according to the present invention uses the bucket carts 4, 4 to scoop up soil from left and right directions with respect to the working direction, so it is possible to easily dig a trench to a depth up to the length of the arm 3. .

Furthermore, since the working machine according to the present invention has scissor hands whose positions can be set arbitrarily, it can be conveniently used as a forklift for tasks such as lifting objects, turning them, and loading them onto trucks, etc. .

As described above, the working machine according to the present invention can be conveniently used for various types of work. By removing one boom and below, it can be used as a regular shovel or backhoe.

〔Effect of the invention〕

As described above, according to the present invention, a pair of booms are provided with a pair of arms and buckets that can be turned left and right, and a scissor hand that can be raised and lowered and placed in any desired position. By moving the scissors up and down against a tree-shaped tree, you can securely hold the tree without damaging it, and the pair of arms and buckets that move left and right improve the freedom of digging holes and trenches. This has the effect of providing a multi-purpose working machine that can easily erect long objects such as utility poles using a pair of buckets and scissors, and can also be conveniently used as a forklift.

[Brief explanation of drawings]

1 to 8 show a working machine according to an embodiment of the present invention, FIG. 1 is a side view, FIG. 2 is a front perspective view, FIG. 3 is a front perspective view of main parts, and FIG. 4 is a A plan view of the main part, FIG. 5 is a plan view of the main part in another state,
6 is a front view, FIG. 7 is a plan view of the scissors, and FIG. 8 is a plan view of the scissors according to another embodiment. 9 to 14 show a conventional example, FIG. 9 is a side view, FIG. 10 is a perspective view of the main part, FIG. 11,
Figure 12 is a plan view of the clamp piece, Figure 13,
FIG. 4 is an explanatory diagram of the operation. In the figure, 1 is a rotating base, 2 is a boom, 3 is an arm, 4 is a bucket, 51 and 52 are scissor hands, 1
0 is a self-propelled trolley.

Claims (1)

[Claims] 1. A self-propelled trolley, a swivel platform mounted on the self-propelled trolley that can rotate horizontally, a pair of left and right booms that can be raised and tilted in parallel attached to the swivel platform, and a swivel platform that is attached to the tip of each of the booms. A pair of left and right arms that are movable in the left and right direction, a pair of left and right buckets that are attached to the tips of the arms so as to be left and right opposite to each other, and that are swingable in the left and right direction, and this arm is located in the middle of the pair of left and right arms. 1. A working machine comprising: a pair of scissor hands which are each a pair of rod-shaped bodies that are provided so as to be movable up and down along the arms, and which open and close so as to sandwich a workpiece between the two arms.