JPH0735851Y2 - Cutting edge horizontal transfer type simple attachment / detachment device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION This invention relates to the attachment and detachment of a cutting edge of a road grader grader.

[0002]

2. Description of the Related Art In a conventional cutting edge attachment / detachment device, as disclosed in Japanese Patent Application No. 3-108595, a link of the attachment / detachment device body and a hydraulic cylinder are vertically arranged above a rear surface of a grader. .

[0003]

The problems described in the prior art have the following problems. The lower surface of the vehicle body, which is equipped with a conventional road leveling grader in which the desorption device is vertically arranged above the rear surface of the grader, has a small space between the grader device and the lower surface of the vehicle body during snow removal work. In order to remove snow before it gets in the way and causes obstacles such as freezing, it is an issue to make the space as large as possible.

The present application has been made in view of the above problems of the prior art, and an object of the present application is to provide the following. In a road surface leveling device that is mounted on the lower surface of the center of the vehicle and scrapes off snow and ice burns formed on the road during the winter, a cutting edge (JIS D61) that cuts off snow and snow that is mounted as a blade of a grader.
(Including 03), do not install with a large number of bolts and nuts at the time of replacement, and the worker dives under the entanglement prevention device (Ministry of Transport Ordinance No. 8 of March 15, 1979) under the vehicle. Insert it from the outside of the grader, without having to lift the cutting edge by hand in a cramped position.
As for the fixing, the hydraulic cylinder is actuated via the link mechanism to instantly crimp and complete the mounting.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention is as follows. That is, in the case of the present application, a stopper 4 is attached to the lower side of the front surface of the grader 2 supported on the lower surface of the vehicle body 1 on which the entanglement prevention device 3 is mounted, and the rear surface of the grader 2 is attached and detached at a predetermined position. A device body B is provided, and this desorption device body B is composed of a holder 6 that acts in the front-rear direction by the action of a hydraulic cylinder 5, and a side-U-shaped guide groove 6A formed on the front surface of the holder 6. While the stopper 4
Cutting edge 7 configured to be located on the back of the
A guide bolt 8 which is laterally inserted into a guide groove 6A is attached to the rear side of the guide groove 8A, and a guide roller 8A is loosely fitted to the outer periphery of the guide bolt 8 to dispose the attaching / detaching device body B at the lower rear portion of the grader. However, the rings 9 and 10 and the hydraulic cylinder 5 are configured to operate in the lateral direction, so that the desorption device body B can be made compact and the obstacles due to snow during work can be minimized. It is a simple delivery type desorption device.

[0006]

EXAMPLES Examples will be described with reference to the drawings. A
Is a horizontal cutting edge type simple detachment device of the present invention. Reference numeral 2 denotes a grader supported by a known method on the lower surface of the vehicle body 1 on which a known entanglement prevention device 3 is mounted.
A stopper 4 is attached to the lower side of the front surface of the grader 2. Although illustration is omitted, a publicly-known metal connection to the vehicle body is provided above the grader. Further, a desorption device body B is arranged below the rear surface of the grader 2 at predetermined positions. In addition, in the figure, the desorption device bodies B are provided at three positions, that is, both end portions and the central portion of the grader 2.

Therefore, the attachment / detachment device body B is provided with a shaft 16 installed in the longitudinal direction of the grader 2 on a bracket 2A projecting below the rear surface of the grader 2, and this shaft 16
The holder mounting bracket 6B that is swingably supported in the front-back direction with the fulcrum as a fulcrum, the holder 6 that is fixed to the lower portion of the holder mounting bracket 6B, and the side surface U-shaped carved on the front surface of the holder 6. It comprises a guide groove 6A and a holder shaft 6C which serves as a fulcrum shaft of the link 10 provided on the rear surface of the holder 6.

A cutting edge 7 having a guide bolt 8 and a guide roller 8A mounted on the groove 6A is provided.
Is inserted, and the link 9 is arranged with the link support shaft 2B fixed to the bracket 2A as a fulcrum by the expansion and contraction operation of the hydraulic cylinder 5 supported by the cylinder mounting pin 15.
And a pin 13 are rotatably connected by a pin 13 and a holder shaft 6C
A link 10 having a fulcrum as a fulcrum is connected to the rod of the hydraulic cylinder 5 and the pin 14 so as to operate. In this case, in order to make the operations of the hydraulic cylinder 5, the link 9, and the link 10 act in a substantially perpendicular direction, the spherical bearings 11 and 1
The action of 2 is used.

The present invention operates as follows. With a link support shaft 2B fixed to a bracket 2A protruding below the rear surface of the grader 2 as a fulcrum, a link 9 loosely fitted via a spherical bearing 11 and a shaft 16 installed on the bracket 2A. , A holder mounting bracket 6 supported swingably in the longitudinal direction of the grader 2
Link 10 loosely fitted to holder shaft 6C fixed to B
The other end of the link 9 which is connected to the hydraulic cylinder 5 via the spherical bearing 12 is connected to the hydraulic cylinder 5 via the spherical bearing 12, and the other end of the hydraulic cylinder is connected to the bracket by the cylinder mounting pin 15 via the spherical bearing 12. It is fixed to 2A.

When the hydraulic cylinder 5 expands and contracts, the link 9 rotates about the link support shaft 2B. Therefore, the link 10 also rotates with the holder shaft 6C as a reference, and the position of the pin 13 moves laterally. In this case, naturally, the distance between the link support shaft 2B and the holder shaft 6C is extended, and this operation is performed by connecting the holder mounting bracket 6B and the holder 6, the holder shaft 6C, and the link 10 which are supported with the shaft 16 as a fulcrum. Due to the difference in distance between the shaft 16 and the links 9 and 10, and the characteristics of the spherical bearings 11 and 12, the shaft 16 is used as a fulcrum, the holder is rotated toward the stopper 4, and the cutting edge is crimped. is there.

[0011]

Since the present invention is constructed as described above, it has the following effects. In the cutting edge horizontal transfer type simple attaching / detaching device, the attaching / detaching device body B is arranged on the lower surface of the grader rear surface, and no member relating to the attaching / detaching device body B is installed on the upper portion of the rear surface of the grader. The space between them can be widened to facilitate the removal of snow adhering between the vehicle and the grader device.

[Brief description of drawings]

FIG. 1 is a plan view showing a state in which a grader is mounted on a vehicle body.

FIG. 2 is a side view of the above.

FIG. 3 is a rear view when the mounting and fixing of the cutting edge is completed.

FIG. 4 is an enlarged view of a main part of the above.

5 is a side view of FIG. 4.

FIG. 6 is an enlarged rear view of the main part for explaining a state where the cutting edge is not attached to the grader in which the present apparatus is installed.

FIG. 7 is a side view of the above.

FIG. 8 is an enlarged rear view of the main part immediately before the mounting and fixing of the cutting edge.

FIG. 9 is a side view of the above.

FIG. 10 is a rear view showing a state where a guide bolt is attached to the cutting edge.

FIG. 11 is an enlarged vertical sectional view of the above.

[Explanation of reference symbols] A cutting edge lateral feeding type simple detaching device B detaching device body 1 vehicle body 2 grader 2A bracket 2B link support shaft 3 entrainment prevention device 4 stopper 5 hydraulic cylinder 6 holder 6A guide groove 6B holder mounting bracket 6C holder Axis 7 Cutting edge 8 Guide bolt 8A Guide roller 9,10 Link 11,12 Spherical bearing 13,14 Pin 15 Cylinder mounting pin 16 Shaft

Claims (1)

[Scope of utility model registration request] 1. A stopper (4) is attached to a lower side of a front surface of a grader (2) supported on a lower surface of a vehicle body (1) on which a entanglement prevention device (3) is mounted, and a grader (2) is attached to the lower side. ), A desorption device body (B) is arranged at a predetermined location on the back surface of the desorption device body (B),
It is composed of a holder (6) that acts in the front-back direction by the action of and a guide groove (6A) of a side face U-shape carved in the front surface of the holder (6), and is located on the back surface of the stopper (4). Cutting edges (7) configured to
A guide bolt (8) which is laterally inserted into a guide groove (6A) is attached to the rear side of the guide groove (6A), and a guide roller (8A) is loosely fitted to the outer periphery of the guide bolt (8). A cutting edge horizontal transfer type simple attachment / detachment device.