JPS6024767Y2 - Work equipment mounting device - Google Patents

Description

[Detailed description of the invention] This invention relates to a work equipment mounting device that allows heavy work equipment such as an evacuation plate to be easily and quickly attached to and removed from the front of the tractor body. The purpose is to scale the mounting device.

This idea is to provide a connecting pin or a pair of right and left axes located in the front and back on a support frame connected to both sides of the working machine, and a pair of right and left receiving parts located in the front and rear of the mounting frame fixed to both sides of the front of the tractor body. A connecting pin having a pair of left and right receiving portions or a left and right axis is provided, and by moving the tractor body forward, the connecting pin is fitted into the receiving portion to support the rear part of the work equipment in a stable state on both front and rear sides of the mounting frame, and further, A fixing claw is provided on the mounting frame or the support frame, and the fixing claw prevents the connecting pin from being removed from the receiving portion, so that the working machine can be attached and detached very easily.

An embodiment of this invention will be explained based on the drawings.

1 is a tractor body, and mounting frames 3 are fixed to both sides of a front frame 2 of the tractor body 1.

The front ends of these mounting frames 3 are connected by a connecting pin 4 having left and right axes, and a connecting pin 5 that projects left and right is provided on the outer side of the rear end.

Next, a support frame 8 is provided for supporting the rear part of the boom 7 on which the earth removal plate 6 serving as a working machine is supported.

A bracket 1° for holding a hydraulic cylinder 9 for raising and lowering the earth removal plate 6 is attached to the front end of the support frame 8.

A pair of left and right receiving portions 11 into which both side portions of the connecting pin 4 are fitted are fixed on the inside of the front end of the support frame 8, and a pair of left and right receiving portions 12 into which each of the connecting pins 5 is fitted at the rear portion. is fixed.

These receiving parts 11, 12 are approximately U-shaped and widen toward the rear.

Furthermore, hook-shaped fixing claws 13 that support the outer periphery of both sides of the connecting pin 4 from the rear side are rotatably connected to the inside of the front end of the support frame 8 while being biased by a spring 14. .

This spring 14 is attached to the fixed claw 1 in the state shown in FIG.
3 in the counterclockwise direction, but the rotation fulcrum 1 of the fixed claw 13
5, the fixed claw 13 is biased clockwise.

A stopper 16 that restricts the counterclockwise stroke of the fixed claw 13 is provided upright on the support frame 8 .

Further, a slope 17 that slopes downward toward the rear is formed on the rear upper edge of the fixed claw 13, and the rear portions of the fixed claw 13 are connected to each other by a connecting pipe 18.

Furthermore, a connecting plate 1 connecting the left and right support frames 8
A pipe-shaped jack point 21 is provided at the center of the support frame 9 to which the upper end of a jack 20 that holds the support frame 8 independently is locked.

In such a configuration, when the tractor body 1 is moved forward with the support frame 8 supported by the jacks 20 as shown in FIG. It fits into the receiving part 11 while retracting the claw 13, and the rear connecting pin 5 also fits into the receiving part 12 at the rear.
to be inserted into.

The fixing claw 13 is returned to its original position by the force of the spring 14 and the receiving part 1
1 to prevent the connecting pin 4 from coming off.

Then, by connecting a hydraulic hose (not shown) to the hydraulic cylinder 9 and removing the jack 20, the earth removal plate 6 becomes usable.

Next, when removing the earth removal plate 6 from the tractor body 1, the support frame 8 is supported by the jack 20, and the fixing claw 13 is rotated downward against the force of the spring 14.

At this time, the spring 14 crosses the pivot point 15 and maintains the fixed claw 13 in the retracted state.

As a result, by moving the tractor body 1 backward, the connecting pins 4 and 5 are removed from the receiving portions 11.12, and the connected state is released.

In addition, since the jack point 21 is pipe-shaped, the jack 20 will not come off even if the upper end of the jack 20 is fitted and the support frame 8 receives an impact, and as a result, the support state of the support frame alone is extremely stable. ing.

Since this invention is constructed as described above, the work equipment can be attached and detached by simply moving the tractor body forward and backward without moving the work equipment at all while the work equipment remains in a stable position. This has the advantage that it can be installed very easily and in a short time without the need for any tools when attaching and detaching, and that it can be maintained in a strong connected state by the fixing claws.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention; Fig. 1 is a side view, Fig. 2 is a side view showing a connected state, and Fig. 3 is a central vertical sectional side view showing a part of the connected state in an enlarged manner. , FIG. 4 is an enlarged horizontal sectional view showing a part of the connected state. 1...Tractor body, 3...Mounting frame, 4-5...Connection pin, 6...Earth removal plate (work machine), 8... ...Support frame, 11~
12...Receiving part, 13...Fixing claw.

Claims (1)

[Scope of utility model registration request] A support frame that holds both sides of the work machine and a mounting frame fixed to both sides of the front part of the tractor body are provided, and connecting pins located in the front and rear of either the support frame or the mounting frame are connected to the left-right axis. A pair of left and right receiving portions are provided on the other side, and each of the connecting pins is inserted into the receiving portion. A mounting device for a work machine, characterized in that a fixing claw that locks in a fitted state is provided in a manner that can be freely engaged and detached.