JPS5938543Y2 - tractor shovel - Google Patents

Description

[Detailed description of the invention] This invention relates to an excavator that uses a hydraulically controlled three-point support arming system on a tractor. It is an object of the present invention to provide a structure of a tractor shovel that can extremely easily and quickly transfer thickly deposited manure, compost, sand, etc. to a desired location.

In the present invention, the excavator main body A, which has a generally triangular cross section and is open from the front to the top, is divided into two parts in the front-rear direction, and both parts are pivoted at the upper end pivot points 1.1' of the left and right dividing line, respectively, and the lower end are provided with connecting pieces 2, 2' for temporary fixing to fit them together with a certain force, and the excavator body A
A base 3'' of a connecting arm 3, which has a pivot point 3' with the upper link of the tractor at its tip, is pivoted to the upper end of the back surface of the rear wall a, and is movable up and down. Pivot parts 4, 4' with both the left and right lower links of the tractor are provided on the left and right sides of the lower side, and the upper end of the support leg 5 is rotatably pivoted to the tip of the shovel body A. This relates to a tractor shovel.

In the figure, B indicates the tractor, 6 indicates the upper link of the three-point support armament rack system of the tractor, 7° 7' indicates the lower link, and 8 indicates the stopper.

Since the present invention has the above-mentioned configuration, the tip pivot portion 3' of the connecting arm 3 of the present excavator is pivotable vertically relative to the tip of the upper link 6, which is fixed in advance in a substantially horizontal state. By attaching the excavator to the tractor and pivoting the left and right pivot joints 4, 4' to the tips of the left and right lower links 7 and 7' so as to be able to move up and down, the excavator of the present invention can be completely mounted on the tractor. To perform this work, first move the lower link 7.7' up and down by operating the hydraulic control lever as shown in Figure 4, so that the tip of the excavator body A is slightly lifted above the ground. If the tractor B is set at a certain level and the tractor B is moved backwards in this state, only the fertilizer, compost, etc. that has accumulated on the upper surface of the ground can be press-fitted into the excavator body A, and the excavator body A is filled with fertilizer, etc. When the hydraulic pressure control lever is operated to rotate the lower link 7.7' upward, the excavator main body A rotates the opening upward due to the presence of the connecting arm 3, as if scooping fertilizer, etc. while rising.

Therefore, after driving the tractor in this state and transporting the excavators to the desired collection location, if the lower link 7.7' is rotated downward again by operating the hydraulic control lever, the support leg 5 can be moved to the excavator body. When A rises, it hangs down from the tip of the shovel body A due to its own weight, so the lower end of the support leg 5 first touches the ground and the tip side of the shovel body A automatically supports it. Therefore, when the lower link 7.7' further rotates downward, the excavator body A, which is divided into two parts in the front and back direction,
The bottom part is opened centering on the upper end pivot parts 1, 1' of both left and right dividing lines against the fitting force of the temporary connecting pieces 2, 2', and fertilizer, etc. is automatically released directly below it. It is something that can be done.

Furthermore, even without the support legs 5, if the excavator main body A is divided into two parts in the front and back direction and both parts are pivotally connected at the upper end pivot parts 1 and 1' of the left and right dividing line, the required height above the ground can be achieved. By touching the tip of the shovel body A to the top of the manure, compost, sand, etc. that is being accumulated, the bottom of the shovel body A is opened and the fertilizer, etc. can be automatically discharged directly below. .

Next, when returning the excavator body A to its original state, the lower link 7.7' is simply operated by operating the hydraulic control lever without requiring any special troublesome operations.
, the bottom opening of the excavator body A will automatically close due to the weight of the excavator body A, and the temporary connecting piece 2 will close automatically.
, 2' maintains this state.

As explained in detail above, the excavator main body A, which is open from the front to the top, is divided into two in the front and rear direction.
By lifting the excavator body A, the divided front part automatically closes the bottom surface under its own weight, so that both the left and right parts are pivoted at the upper end pivot joints 1.1' of the dividing line, and when the excavator body A is lowered, , connect the divided front part to the pivot joint part 1
, 1' in the direction of the bottom opening under its own weight, the upper end is rotatably supported on the excavator main body A in front of the pivot parts 1, 1', and the support legs Since the body 5 is provided, the front part of the divided shovel body can be closed by its own weight without using another hydraulic cylinder to open and close the front part of the divided shovel body as in conventional tractor shovels. In addition, when opening the excavator, the weight of the excavator body and the weight of the objects inside are placed on the supporting legs, so even if there are objects inside, the excavator can be opened easily with its own blade.Moreover, the tractor is equipped with a hydraulic cylinder. In cases where the shovel cannot be rotated in the unloading direction due to lack of space, it is possible to unload the objects carried in the shovel with a simple configuration.

In addition, the structure is extremely simple, and it can be attached to and detached from the tractor using a three-point link, just like conventional rotary tillers, and there is no need to modify the tractor side. It is possible to perform the above complex work automatically while sitting in the driver's seat by simply operating the hydraulic control lever by effectively utilizing the oil pressure control lever. This has the effect of making it possible to easily and quickly transport fertilizer and the like to a desired location, making it possible to reduce costs and improve work efficiency.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a front view thereof, FIG. 3 is a side view thereof, and FIG. 4 is an explanatory diagram showing the state of use. A... Excavator body, a... Rear wall body,
B...Tractor 1,1'...Both left and right dividing line upper end pivot joint, 2.2'...Temporary connection piece, 3... Connecting arm, 3'... Pivot joint, 3'''... Base, 4, 4'...
Pivot joint, 5...Support leg body.

Claims (1)

[Scope of utility model registration request] The excavator body A, which is open from the front to the top, is divided into two parts in the front-rear direction, and by lifting the excavator body A, the two parts are placed on both the left and right dividing lines so that the front part of the divided parts automatically closes the bottom part under its own weight. End pivot joint 1,1
′, and as the excavator body A descends, the divided front part can be rotated by its own weight in the direction of the bottom opening around the pivot part. A tractor excavator characterized in that A is provided with a support leg 5 whose upper end is rotatably supported.