JPH0621293Y2 - Crop prevention device using crop harvesting machine - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of agricultural crop harvesting machines, and more particularly to improvement of spherical agricultural crop harvesting machines such as potatoes and beets.

[0002]

[Prior Art and Problems] Taking potato harvesting machines, beet harvesting machines, etc. as examples, when a harvested product filled in a tank is discharged from the tank to the ground, it rolls under the harvesting machine and is trampled by the movement of the machine. There was an occasion. In order to prevent this drawback, an operator stood on the side of the harvesting machine with a blocking plate at the time of discharging the harvested product from the tank to prevent the harvested product from rolling under the harvesting machine. Therefore, every time the harvested product is discharged from the tank, a worker is required to prevent crushing.

The present invention has been made in view of such conventional circumstances and the recent shortage of manpower. Even if the harvested product in the tank is discharged to the ground, the harvested product discharge movement of the tank does not depend on the manpower. An object of the present invention is to provide a crop harvesting machine configured so as to prevent crushing of the discharged harvest in cooperation with the above.

[0004]

Means for Solving the Problems In order to achieve the above-mentioned object, the means provided by the present invention is such that one side of a crop harvesting machine having a rotatable tank holds the upper position by keeping the tank stationary. That is, a blocking plate that holds the lower position by reversing the upward rotation of the tank is provided.

[0005]

[Function] When the tank, which has been left stationary on the machine frame of the crop harvesting machine, rotates upwards and turns over, and releases the harvested product to the ground, the upper position is maintained in conjunction with the upward rotation of the tank. The blocking plate has been lowered to maintain its lower position, blocking the released crop from rolling under the crop harvesting machine.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A crop harvesting machine 1 is shown as a potato harvester, and the harvesting machine itself may have a well-known configuration. The same applies to beat harvesters. The tank 2 is rotatably mounted on the harvesting machine 1 and is constructed in a known manner so that the harvested product P can be discharged to one side of the machine. The tank 2 has a well-known configuration in which the upper end of one side of the tank frame 1 is pivotally attached to the upper end of the inclined side frame 1-1 of the machine frame that constitutes the harvesting machine 1. Since the harvested product P in the tank is rotated upward and reversed to discharge the harvested product P to one side of the harvesting machine 1, the shut-off plate 3 is opened by utilizing the large swinging operation of the tank 2 around the shaft attachment portion 4. It is configured to raise and lower. The tank 2 has a front surface 2 facing the front part of the harvesting machine 1 (on the left side in FIG. 2, the tractor connecting part side (not shown)).
-1 one lower corner and one rear lower corner of the rear surface 2-2 facing the rear part of the machine (on the right side of FIG. 2, the rotary bucket conveyor side) are respectively provided with arcuate guide parts 5, and the guide plate is a blocking plate. The lever 6 of 3 is guided and moved, and at the same time as the movement of the lever 3, the rotary rod 7 of the blocking plate 3 is rotated to raise and lower the blocking plate 3. The arc-shaped guide portion 5 formed on the front surface 2-1 and the rear surface 2-2 of the tank 2 has a curved plate configuration that bulges in the tank upper direction centered on one lower corner side of the tank 2 and has a relatively small diameter. A rolling wheel 8 which is constructed and is axially attached to the end portion of the lever 6 is brought into contact with and guided.

The shield plate 3 has a long structure in the front and back so as to cover almost the entire length of the harvesting machine 1, one end of a pair of front and rear levers 6 is pivotally attached to the upper edge, and the lever is attached to the lower side of the rod attachment part. One end of the moving rod 7 is axially attached. The blocking plate 3 has a lower part made of a rubber plate, and is configured so as not to be damaged even if the discharged harvest P is hit. The rod 6 having one end pivotally attached to the blocking plate 3 has a rolling wheel 8 at the other end, and the middle is pivotally attached to both ends of the fixed long rod 9.
The rolling wheel 8 is brought into contact with the lower surface of the guiding portion 5. The rotary rod 7 having one end pivotally attached to the blocking plate 3 has the other end pivotally attached to the front end of the fixed support rod 10, and raises and lowers the blocking plate 3 in cooperation with the lever 6.

In the drawing, reference numeral 11 is a fixed support rod which is vertically fixed and supported by the front end of a fixed support rod 10 whose base end is fixed to the machine frame, and which supports near the both ends of the fixed long rod 9. To do. As shown in FIGS. 1 and 2, the blocking plate 3 configured as described above allows the roller 8 to guide the guide wheel 5 by the lower stationary tank as long as the tank 2 holds the lower stationary mode on the machine frame. Since it is pressed against the lower end of the rod, it is lifted by the lathe rod 6 and the rotary rod 7 to hold the upper position. As shown in FIGS. 3 and 4, the blocking plate 3 rotates in the direction in which the guide portion 5 moves away from the wheel 8 when the tank 2 starts to rotate upward about the shaft mounting portion 4, Although it begins to descend due to the weight of the blocking plate 3 itself, the rolling wheels 8 continue to keep in contact with the guiding portion 5 so that they do not suddenly descend and gradually descend in conjunction with the upward rotation of the tank 2. Then, the rolling of the harvested product P gradually discharged from the tank 2 to the harvesting machine 1 is blocked.
Then, the tank 2 rotates up to the upper limit and turns over,
After releasing the harvested product P, the rolling wheel 8 comes off the guiding portion 5,
It rises high and floats in the air, and the blocking plate 3 descends by its own weight to hold the lower position, and blocks the rolling of the discharged harvested product P toward the harvester 1.

When the blocking plate 3 holding the lower position is raised to the upper position, the whole amount of the harvested product P is discharged and the emptied tank 2 is rotated downward and left stationary on the machine frame. Then, the guide portion 5 and the rolling wheels 8 are reversely operated to raise the blocking plate 3 to hold the upper position (FIG. 4 → FIG. 3).
→ The order is shown in FIGS. 2 and 1.)

[0010]

[Effect of the Invention] Since the present invention is configured as described above,
When the blocking plate moves up and down in conjunction with the upward rotation and downward rotation of the tank, and the tank rotates upward and reverses to release the harvested product, the blocking plate maintains the lower position and the released harvested product is Blocks from rolling under the harvesting machine to prevent crops from being trampled on the harvesting machine. Since the operation of the blocking plate is automatically performed in conjunction with the operation of the tank, the personnel for preventing the crushing of the harvested products becomes unnecessary.

[Brief description of drawings]

FIG. 1 is a front view showing an example of a harvesting machine provided with a crushing prevention device according to the present invention, in which a barrier plate holds an upper position.

FIG. 2 is a right side view of FIG.

FIG. 3 is a front view showing the time when the upward rotation of the tank is started.

FIG. 4 is a front view showing a mode in which the tank discharges the whole harvest and the barrier plate holds the lower position.

FIG. 5 is an operation explanatory view of a lever for a tank and a blocking plate.

[Explanation of symbols]

 1 ... Agricultural crop harvesting machine 2 ... Tank 3 ... Blocking plate P ... Harvested product

Claims (1)

[Scope of utility model registration request] 1. A crop harvesting machine provided with a blocking plate for holding an upper position of a crop harvesting machine having a rotatable tank by holding the tank stationary downward and holding the lower position by turning the tank upward and rotating. A device to prevent the crops from being trampled.