JP2000209963A - Working device of working vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a working device of a working vehicle, capable of carrying out a plurality of works without exchanging the attachment of the working device at a working site. SOLUTION: This working device of the working vehicle 1 provided with a rotation member 3 is obtained by disposing a single boom 4 on the rotation member 3, longitudinally rotatably connecting a plurality of arms 6, 7 to the tip of the boom 4, and attaching a cutter 14 and a cramp device 17 as different working attachments to the arms 6, 7, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a working device provided on a rotating body of a self-propelled working vehicle.

[0002]

2. Description of the Related Art Conventionally, a working device of a self-propelled working vehicle has
It consists of a single boom provided on the revolving superstructure, a single arm connected to the tip of the boom, and a single work attachment attached to the arm. When performing an operation, it is necessary to select an attachment suitable for each operation and change the attachment each time.

[0003] However, it is troublesome to change such attachments at the work site. Further, when performing various operations in a place where traffic is inconvenient, it is difficult to prepare various attachments. Therefore,
In order to perform multiple tasks without changing attachments, a work device for a self-propelled work vehicle is used as a working device on a revolving superstructure.
Some booms are installed, each arm is connected to the end of each boom, and each arm is attached with a different work attachment.However, this work device has two booms on a revolving unit. Therefore, there are problems that the weight is large, the cost is high, the operation is troublesome, and the visibility is low when driving on the road.

[0004]

SUMMARY OF THE INVENTION The present invention solves such a problem in a working device of a working vehicle. A plurality of works can be performed without changing attachments at a work site, and the structure is simple. It is an object of the present invention to provide a working device of a working vehicle which is easy to operate and inexpensive.

[0005]

According to a working device for a working vehicle of the present invention, in a working vehicle provided with a revolving body, a single boom is provided on the revolving body, and a plurality of arms are rotated back and forth at the end of the boom. It is movably connected, and each arm has a different work attachment. When performing a plurality of types of different operations, the operator sequentially selects an arm to which an attachment suitable for each operation is attached, and retracts unnecessary arms to perform the operation.

[0006] In this work device, it is not necessary to change the attachment at the work site, so the work efficiency is improved. Since a single boom is used, the structure is simple, the operation is easy, and the cost is low. When the arm is provided with the turning mechanism, the degree of freedom of the arm is large, the positioning of the attachment and the change of the posture are easy, and various operations can be performed efficiently.

[0007] When a cutter is attached to one arm and a clamp device is attached to the other arm as an attachment for work, as a work vehicle for cutting out wood in the forest, the cutting of wood by the cutter and the wood by the clamp device are performed. Can be handled by one work vehicle.

[0008]

FIG. 1 is a side view of a working vehicle provided with a working device according to an embodiment of the present invention, FIG. 2 is a plan view of a working vehicle provided with a working device, and FIG. It is a side view of the arm provided. The work vehicle 1 is a self-propelled vehicle using a truck of a wheel loader, and a revolving unit 3 is mounted on a main frame 2, and a boom 4 of a working device 11 is pivotally mounted on the revolving unit 3. ing. A boom cylinder 5 is mounted between the revolving superstructure 3 and the boom 4 so that the boom 4 can be raised and lowered by the boom cylinder 5.

Arms 6 and 7 are respectively connected to the right and left sides of the tip of the single boom 4 so as to be able to rotate back and forth. Arm cylinders 8 and 9 are mounted between the boom 4 and the arms 6 and 7, respectively, and the arms 6 and 7 rotate the arms 6 and 7 back and forth. At the end of the right arm 6, the cutter frame 1
0 is attached to be able to tilt back and forth. A work cylinder 12 is mounted between the arm 6 and the cutter frame 10 via links 21 and 22. The work cylinder 12 tilts the cutter frame 10 forward and backward. A motor 13 is provided on the cutter frame 10, and a cutter 14 is attached to an output shaft of the motor 13.

A clamp device 17 is attached to the tip of the left arm 7. The clamp device 17 includes a clamp frame 15 attached to the distal end of the arm 7,
A clamp arm 16 is swingably attached to the clamp frame 15, and a work cylinder 18 is attached between the arm 7 and the clamp arm 16 via links 23 and 24. In this clamp device, the clamp arm 16 is driven to open and close by a work cylinder 18.

The work vehicle 1 is used as a work vehicle for cutting wood in a forest. At the time of logging work, select the right arm 6 to which the cutter frame 10 is attached,
The unnecessary left arm 7 extends the arm cylinder 9 and retracts backward as shown in FIG. Then, the cutter 14 is positioned by operating the boom cylinder 5, the arm cylinder 9, and the work cylinder 12, and the motor 13 is driven to rotate the cutter 14 to cut a tree.

When the cutting is completed, the arm cylinder 8 is extended to retract the right arm 6 rearward, and the left arm 7
To move the clamp frame 1 of the clamp device 17.
The cut wood is clamped by the clamp arm 5 and the clamp arm 16 to handle the wood. The work vehicle 1 can perform a plurality of operations, such as cutting and handling of wood, by the operation device 11 without changing attachments each time, thereby improving work efficiency.

As shown in FIG. 3, the arm 6 is provided with a turning mechanism 19 so that the cutter frame 10 can be turned and the degree of freedom is increased.
It is easy to change the positioning and posture, and the working efficiency is further improved. The turning mechanism 19 is also provided on the arm 7 if necessary.
Can be provided. Various attachments for work can be attached to the arms 6 and 7 of the work device 11 according to the type of work. For example, if a rock drill is attached to the arm 6 and a crusher is attached to the arm 7, the work vehicle 1
Will be able to efficiently crush the building.

Since the working device 11 uses a single boom, the structure is simple, the operation is easy, and the cost is low. The visibility when driving the work vehicle 1 on the road is also good.

[0015]

As described above, the work device for a work vehicle according to the present invention does not require replacement of the attachment at the work site, thereby improving work efficiency. Since a single boom is used, the structure is simple, the operation is easy, and the cost is low. If the arm has a turning mechanism,
The degree of freedom of the arm is large, the positioning of the attachment and the change of the posture are easy, and various operations can be performed efficiently.

When a cutter is attached to one arm and a clamp device is attached to the other arm as an attachment for work, the work vehicle for cutting wood in the forest can be used as a work vehicle for cutting wood in a forest, and can be used as a work vehicle for cutting wood in a forest. Can be handled by one work vehicle.

[Brief description of the drawings]

FIG. 1 is a side view of a work vehicle provided with a work device according to an embodiment of the present invention.

FIG. 2 is a plan view of a working vehicle provided with a working device.

FIG. 3 is a side view of an arm provided with a turning mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Work vehicle 2 Main frame 3 Revolving body 4 Boom 5 Boom cylinder 6 Arm 7 Arm 8 Arm cylinder 9 Arm cylinder 10 Cutter frame 11 Work device 12 Work cylinder 13 Motor 14 Cutter 15 Clamp frame 16 Clamp arm 17 Clamp device 18 Work cylinder 19 Swing mechanism

Claims (3)

[Claims] In a working vehicle provided with a revolving body, a single boom is provided on the revolving body, and a plurality of arms are connected to the tip of the boom so as to be able to rotate back and forth, and different arms are used for different work. A work device for a work vehicle, comprising an attachment. 2. The working device for a working vehicle according to claim 1, wherein the arm has a turning mechanism. 3. The working device for a working vehicle according to claim 1, wherein a cutter is attached to one arm and a clamp device is attached to another arm as an attachment for working.