JPS5830970B2 - Rice field leveling machine for tractors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a tractor which is extremely useful for the work of scraping away soil at high places along the edges of rice fields and transporting the scraped soil to low places in the center to correct height differences in rice fields. Regarding the circumferential round ground leveling machine, the details of the usurpation are as follows with reference to the attached drawings.

An earth transport platform 4 is formed by a rising front wall 2 having a width approximately equal to the distance between left and right rear wheels 18 of a tractor 13 and a horizontal bottom wall 3.

Although the drawing shows side plates 5 only on the left and right sides of the soil transport platform 4,
When it is not needed, it can be removed so that there is no side plate.

(It may be box-shaped and the rear plate may be slidably provided so as not to interfere with dump operation.

) A main entrance 1 is formed near the front of the center of this soil transport platform 4.

Although the main entrance 1 in the drawings is shown as an opening formed in the center of the rising front wall 2, it may be located closer to the front of the center of the soil transport platform 4.

L-shaped mounting frame 7 when viewed from the side where this soil transport platform 4 is installed
The spacing between the left and right vertical bars 9, 9' and the left and right horizontal bars 8, 8' is formed to be approximately the same as the width of the main entrance 1, and a soil transport platform 4 is installed at the tips of the left and right horizontal bars 8, 8' of this mounting frame 7. The soil transport platform 4 is pivoted to the tips of the left and right horizontal rods 8, 8'- so that the front side of the soil carrier 4 is placed on the mounting frame 7, and the soil transfer platform 4 performs a dumping operation relative to the mounting frame 7.

(The shaft is fixed using the frame 3' of the soil transport platform.

) Upper introduction plate 1 with a gap connected to the lower end of the lower part of the mounting frame 7
A holding device 22 is provided to hold the introduction plate 10 in a proper inclined state.

In the drawing, a mounting plate 19 is attached to the lower front side of the left and right vertical bars 9, 9' of the mounting frame 7 in a facing state.
A pivot hole 20 is drilled in the upper introduction plate 10, and a mounting shaft 2 is provided on both sides of the upper introduction plate
1 is provided protrudingly, the mounting shaft 21 is fitted into the pivot hole 20, the soil introduction plate 10 is rotatably suspended from the mounting frame 7, and a space is formed between the lower part of the mounting frame 7 and the soil introduction plate 10. A case is shown in which a holding device 22 is provided to hold the soil introduction plate 10 in an appropriate inclined state, and the holding device 22 is a horizontal beam 22' installed between the left and right mounting plates 19.
This figure shows a case where the downward rotation of the soil introduction plate 10 is roughly stopped by the stopper plate 2γ to maintain an appropriate inclination angle.

The holding device 22 may adopt another design, or may hold the scraped soil at an appropriate inclination angle and move it into the soil transport platform 4 from the earth embankment entrance 1 provided near the front of the soil transport platform 4. Any structure that allows it to be introduced is fine.

A releasable locking device 17 is provided on the mounting frame 7 and the rising front wall 2 of the soil transport platform 4 to lock them together in a superposed state.

The locking device 17 shown in the drawings raises the hook 17', which is pulled down by a spring provided on the upper part of the mounting frame 17, to the front wall 2.
The figure shows a case in which the reinforcing machine is elastically engaged with an engaging rod 17' provided on the upper part of the reinforcing machine.

The mounting frame 7 with the soil transport platform 4 attached thereto is attached to the tractor 13.
It is installed at the rear of the device via a linking mechanism 11 so that it can be raised and lowered using a lift arm 12.

The connecting mechanism 11 in the drawing includes a lower link rod 14 with one end pivotally connected to the tractor 13 side and the other end pivotally connected to the soil transport platform 4 side.
, an upper link rod 15 having one end pivotally connected to the tractor 13 side and the other end pivotally connected to the soil transport platform 4 side, and a connecting rod 16 connecting the lift arm 12 and the lower link rod 14. ing.

Reference numeral 6 in the figure is a side plate of the soil introduction plate 10.

Due to the use of large agricultural machinery, the rice fields gradually become ridged or high.
The center becomes lower, and this height difference results in a difference in water depth, which leads to poor rice cultivation management and reduced yields.

The present invention is intended to easily level the difference in height of the rice field, and since it is configured as described above, the lift arm 12 is moved until the horizontal bottom wall 3 of the soil transport platform 4 reaches a substantially horizontal state as shown in FIG. If the tractor 13 is lowered and maintained in this state and is moved forward along the ridges, the soil at the high points of the ridges of the rice field will be scraped away by the plows.

This scraped soil passes through the soil introducing plate 10 from the plow and is sent into the soil transport platform 4 from the earth embankment entrance 1.

When a large amount of soil falls onto the horizontal bottom wall 3 and is piled up in a heap, the lift arm 12 lifts the soil transport platform 4 upwards as shown in FIG. When the driver moves forward or backward to a low place in the center and releases the locking device 17, the soil transport platform 4 performs a large dumping operation due to its own weight including soil, causing all the loaded soil to fall.

This process is repeated to level the rice field.

After dropping the soil, when the soil transport platform 4 is returned to its original position while moving forward a little, it is easily locked again by the locking device 17.

The first feature of the present invention is that the earth embankment entrance has an opening formed in the center of the rising front wall 2 of the soil transport platform 4 at a distance between the left and right vertical rods 9° 9' and the left and right horizontal rods 8, 8' of the mounting frame 7. Since the opening is approximately the same as the width of soil transport platform 4, only the width into which soil is introduced is opened, and the rest is blocked by the front wall or bottom wall.
This makes it possible to load the vehicle.

The second feature of the present invention is the structure that scrapes the soil, and the mounting frame 7
A soil introduction plate 10 with a plow connected to the lower end is mounted on a shaft and diagonally installed via a holding device 22 that holds it in an appropriate inclined state. The soil is picked up to the top by the soil introduction plate 10 which is connected to the earth, and is dropped into the soil transport platform 4 from above through the soil embankment entrance 1, so that the soil can be reliably and efficiently transferred into the soil transport platform 4 without spilling the soil that has been scraped on the way. It will be loaded.

It is also possible to lift the plow tip when you do not want to remove soil, and it is also possible to rotate the plow tip upward when the plow gets in the way when retreating. It is also possible to lower it to

The third feature of the present invention is that the mounting frame 7 has a structure that discards soil.
is L-shaped when viewed from the side, and the left and right horizontal rods 8 of the mounting frame 7
, 8' are provided so that the front side of the soil carrier 4 is placed, so that the soil carrier 4 can be stably attached to the mounting frame 7.

Since the soil transport platform 4 is pivoted at the tips of the left and right horizontal rods 8 and 8', the fulcrum for the dump operation is the tip of the left and right horizontal rods 8° and 8', and the weight of the soil is added when discharging soil. It will be dumped with a slam and the soil will fall well,
On the contrary, it becomes empty and lighter, and when it returns to its original position, it is held by the left and right horizontal rods 8 and 8', so when the tractor 13 crawls forward, it automatically pulls the soil transport platform 4 back to its original position. This also makes it possible to use the pivot joint part easily and for a long time.

The fourth feature of the present invention is the locking device for the soil transport platform 4, in which a locking device 17 is provided at the top for securing the mounting frame 7 and the front wall of the soil transport platform 4 when they are overlapped. This means that the driver of the tractor 13 can perform the release operation by turning his hand backwards while remaining on board.

As described above, the present invention scrapes soil at a certain depth from the gap by moving the tractor 13 forward, and moreover, loads the soil reliably and in large quantities into the soil transport platform 4, and easily and easily transports the soil to a desired location. It is possible to flatten the surface of the rice field very efficiently because it allows all of the water to fall, and when it is used in rice fields, the depth of the water can be made uniform, which improves rice cultivation management and improves the harvest. This is an effective tractor circumferential leveling machine.

[Brief explanation of the drawing]

Figures 1 and 2 are front views showing the operation of this device, and Figure 3 is a slope view of the soil transport platform. 1... Soil introduction port, 2... Standing front wall, 3... Horizontal bottom wall, 4... Soil transport platform, 7... Mounting frame, 8, 8'
・-・Left and right horizontal bars, 9, 9′...Left and right vertical bars, 10...
- Soil introduction plate, 11... Connection mechanism, 12... Lift arm, 13... Tractor 17... Locking device, 2
2... Holding device.

Claims (1)

[Claims] 1. A rising front wall and a horizontal bottom wall form a soil transport platform, and a leading entrance is formed at the front of the center of the soil transport platform.
The distance between the left and right vertical bars and the left and right horizontal bars of the L-shaped mounting frame is approximately the same as the width of the main entrance when viewed from the side where this soil transport platform is attached, and the soil transport platform is attached to the left and right horizontal bars of this mounting frame. The front side is mounted, and the soil transport platform is pivoted to the tips of the left and right horizontal rods so that the soil transport platform can dump against the mounting frame.
An upper introduction plate with a gap connected to its lower end is rotatably attached to the lower part of the mounting frame, and a holding device is provided to hold the upper introduction plate in an appropriate tilted state, allowing the mounting frame and soil transport platform to stand up. A releasable locking device is provided on the front wall to secure the two in a superposed state, and a mounting frame to which the soil transport platform is attached is installed at the rear of the tractor via a connecting mechanism so that it can be raised and lowered using a lift arm. This is a tractor circumferential leveling machine that is characterized by: