JPS6351645B2 - - Google Patents

Description

[Detailed Description of the Invention] When automatically planting seedlings of field crops by moving the transplanter along the ridges formed on the contour lines of the slope,
Conventionally, among the drive wheels provided on the left and right sides of a transplanter, which can be raised and lowered freely, the mountain side is raised and the valley side is lowered, respectively, so that the machine is raised and lowered in opposite directions to maintain the machine horizontally.

When working on a slope like this, with a single-row transplanter, the machine moves across the center of a single row as shown in Figure 4, so the drive wheel a must be raised and lowered as described above. However, the relative position between the planting claw b installed on the center line of the machine and the top of the ridge does not change.
There is no need to adjust the height of the transplanter, but in a two-row transplanter, the ridges on the mountain side and the ridges on the valley side are at different heights, so when the machine is horizontal, the planting nails on the mountain side will go deeper into the ground. This causes the inconvenience that the planting nails on the valley side are too shallow. To avoid this, the left and right planting nails must be raised and lowered according to the height of the ridge, that is, according to the angle of inclination of the slope.

When using a two-row transplanter on a slope, the present invention automatically raises and lowers the position of the left and right planting claws in conjunction with horizontally leveling the machine, so that the seedlings are always placed vertically at a constant depth. The purpose is to plant.

The present invention will be described based on an embodiment shown in the drawings. Reference numeral 1 denotes an engine, and its power is transmitted to a moving shaft 3 via a transmission 2.

4 is a drive wheel that runs on the bottom of the groove between the ridges;
A pair of axles are provided on the left and right sides of the machine body so as to straddle the ridges of the strips, and their axles 5 are pivotally supported by a chain case 6. 7 indicates a chain stretched between the dynamic shaft 3 and the axle 5.

Reference numeral 8 denotes a pair of left and right shaft cylinders rotatably fitted around the outer periphery of the moving shaft 3. The outer walls of the chain case 6 are fixed to the left and right outer ends of the shaft cylinders 8, respectively, and an arcuate rotation is provided on the outer surface of the shaft cylinder 8. Fix the moving rods 9 in pairs on the left and right.

10 is an isosceles triangular turning plate, the apex of which is pivoted to the fuselage 11, and both ends of the base are connected to connecting rods 12.
It is connected to the rotating rod 9 via. A large number of concavities and convexities are arranged in an arc shape on the bottom side of the rotating plate 10, and a movable engagement element 13 is removably engaged with the concavities and convexities.

When moving the transplanter along the ridges on the contour line of the slope, the operating rod 14 is operated to raise the engaging member 13 to disengage it from the rotating plate 10, and the operating handle 15 Press down on the mountain side.
As a result, the left and right chain cases 6 turn separately, the drive wheels 4 on the mountain side rise relative to the aircraft body, and the drive wheels 4 on the valley side descend. At this time, the left and right shaft cylinders 8 rotate in opposite directions, respectively, and rotate the rotating plate 10 via the rotating rod 9 and the connecting rod 12.

After changing the height of the left and right drive wheels 4 and leveling the aircraft in this way, the engaging element 13 is lowered and engaged with the swivel plate 10 to fix the height of the left and right drive wheels 4, thereby leveling the aircraft. maintain the condition.

Next, reference numeral 16 denotes a rotating pot that rotates intermittently, and when the pot moves to a fixed position, the bottom plate 16a opens and the seedlings stored in the pot are dropped into the planting claws 17 below.

The planting claws 17 descend while holding the seedlings, and when they reach the top of the ridge, they open their tips and plant the seedlings into the soil.
Reference numeral 18 denotes a leveling plate for leveling the top of the ridge, and 19 a pair of conical pressing rolls for pressing both left and right sides near the top of the ridge.
7 to the frame 20 as one body to form the planting unit A.
form.

In the present invention, two planting units A are arranged approximately midway between the center line of the machine body and the left and right drive wheels 4, and the front end of each unit A is installed in a horizontal position approximately midway between the driving shaft 3 and the axle 5. It is rotatably connected to a mounting shaft 21. The mounting shaft 21 is connected to the shaft cylinder 8 through left and right parallel links 22, and moves each unit A in the front-rear direction parallel to the center of the ridge.

The mounting shaft 21 may be directly mounted on the outer wall of the chain case 6 without using the parallel link 22.

Reference numeral 23 denotes a crankshaft for driving the upper and lower parallel links 24 that vertically move up and down the planting claws 17. Even if the mounting shaft 21 moves up and down or the unit A moves left and right by the parallel links 22, the engine is always activated. In order to reliably transmit power, the crankshaft 2
3 is connected to an output shaft (not shown) of the mission 2 via a universal joint and a key.

Then, in advance, the leveling plate 18 and the pressure roll 19 are
Adjust the height using the turnbuckle 25 to set the optimal planting depth.

In the figure, 26 is an idler wheel that runs on the bottom of the groove in the center, and 27
are guide plates attached to the left and right sides of the guide plates, which rotate the idler wheels 26 left and right while contacting the sides of the ridge, thereby automatically advancing the machine body along the ridge.

However, when working on a slope, the driving wheels 4 on the mountain side are raised and lowered in order to level the machine as described above, and the driving wheels on the valley side are raised and lowered. and planting unit A
Since the distance from the mounting shaft 21 of the drive wheel 4 to the mounting shaft 21 is 1/2 of the distance between the driving shaft 3 and the axle 5, if the length that the drive wheel 4 moves up and down is 2l, the mounting shafts 21 of the left and right planting units will move up and down by l, respectively. .

As a result, the left and right planting units A placed between the center line of the machine and the left and right drive wheels 4 correctly match the height of the two ridges as shown in FIG.
Plant the seedlings perpendicularly to the ground surface at the same optimal planting depth as the planting depth adjusted in advance on level ground.

In this way, in the present invention, the left and right planting units A are arranged approximately midway between the center line of the fuselage and the left and right drive wheels 4, and the mounting shaft 21 that connects the shaft tube 8 or chain case 6 and the unit A is moved. Axle 3 and drive wheel 4
Since it is installed approximately midway between the drive wheel 4 and the axle 5,
When the plant is raised or lowered, each unit A automatically moves up and down a distance equal to 1/2 of the lifting distance of the drive wheel 4, and not only does the planting depth remain unchanged, but each unit A also maintains a horizontal position. Since the unit A is connected to the shaft cylinder 8 or the chain case 6 through the mounting shaft 21 and is raised and lowered in a parallel position, the effect is that the seedlings are always planted vertically regardless of the steepness or steepness of the slope.

[Brief explanation of drawings]

FIG. 1 is an overall side view of the embodiment of the present invention, FIG. 2 is a plan view of the main parts thereof, FIG. 3 is an explanatory diagram of its operation, and FIG. 4 is an explanatory diagram of the operation of the conventional example. 1 is the engine, 3 is the driving shaft, 4 is the drive wheel, 6 is the chain case, 8 is the shaft cylinder, 16 is the rotating pot, 17
is a planting claw, 21 is a mounting shaft, and A is a planting unit.

Claims (1)

[Claims] 1 A shaft cylinder is fitted around the outer periphery of a driving shaft provided in the aircraft body rotated by the engine, and the left and right drive wheels are pivotally supported by a chain case fixed to the end of the shaft, and the shaft cylinder is rotated on a slope to reverse the left and right driving wheels. In a transplanter that keeps the machine horizontal by raising and lowering the machine, a rotating pot for storing seedlings and a planting claw for receiving and planting the seedlings are integrally assembled to the frame to form a planting unit, and this unit is attached to the machine body. Two units are arranged approximately midway between the center line and the left and right drive wheels, and each unit is connected to the left and right mounting shafts that are located approximately midway between the drive shaft and the axle of the drive wheels and parallel to the shaft cylinder. , and a two-row transplanting device for fields, wherein the mounting shaft is connected to the shaft cylinder or chain case.