JPH03280804A - Supporting device of machine body in seedling transplanter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention is effective when used in a seedling planting machine for field cultivation.
To provide a support device for a seedling transplanter that adapts to the height of a ridge and the horizontal slope of a field.

(Prior art) As seen in Japanese Utility Model Application Publication No. 58-16008, an attempt was made to keep the distance between the aircraft body and the ground constant by moving the front wheels up and down according to the vertical movement of the aircraft body. There is.

(Problems to be Solved by the Invention) However, the above-mentioned device has no adaptability to the lateral inclination of the machine body, and problems still remain with the portable seedling transplanter.

In other words, it was found that the machine tilted sideways while transplanting the seedlings, causing the seedlings to be transplanted at an angle and causing the cabbage and Chinese cabbage balls to become deformed.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a pair of transmission cases 6.6 and arms 18. are a pair of front wheels 11.
11 and rear wheels 19.19 are attached, and the left and right transmission cases 6.6 and arms 18.18 are connected by independent gate-shaped rods. A height detector 30 for detecting the lateral inclination of the fuselage 4 and a tilt detector 32 for detecting the lateral inclination of the fuselage 4 are provided. When the fuselage 4 rises or falls above a certain distance from the ground, the pair of front wheels 11.11 is moved up and down in the same direction by the push and pull of the rod 21 to correct the distance between them. One of the horizontal bars and the tilt detector 32 is such that when the aircraft 4 tilts beyond a certain angle, the horizontal bar expands and contracts and the front wheel 1 on one side
The gate-shaped central rod 28 on the rear wheel 19.19 side moves the rear wheel 19.19 in the same direction as the front wheel 11°11 by pushing and pulling the rod 21. As it moves up and down, the left and right rear wheels shift due to the slope of the ground.19.
The device for supporting the body of a seedling planting machine is characterized in that the intermediate part of the device 19 is connected to the rod 21 by a pin 24 so as to move up and down in opposite directions.

(Function) Since this invention is configured as described above, when the distance between the aircraft body 4 and the ground changes beyond a certain range, the height detector 30
The rod 21 is pushed or pulled by the signal from the front wheel 11.
The central rod 23 on the 11 side moves in the same direction, the horizontal rods rotate the transmission case 6.6, and the left and right front wheels 11.11 move up and down in the same direction. Also, at this time, the rear wheel 19.19
Since the central rod 28 on the side is also pushed and pulled by the rod 21, its horizontal rods 29.29 rotate the pair of arms 18.18,
The rear wheels 19.19 are raised and lowered in the same direction as the front wheels 11.11, and the above-mentioned spacing of the fuselage 4 is corrected.

When the body 4 moves forward on a slope, it tilts sideways, but when the tilt exceeds a certain range, the tilt detector 32 rotates, the front wheel 11 on one side moves up and down, and the tilt of the i-body 4 is corrected. At this time, the aircraft body 4 is tilted with respect to the ground, but the rear wheels 1
The central rod 28 on the 9.19 side rotates around the pin 24, the left and right side rods 29.29 rotate the arm 18.18, and the left and right rear wheels 19.19 move up and down in opposite directions. That lower end force? along the ground.

In addition, if the ground is twisted or if the front wheel 11 on one side
Alternatively, even if the rear wheel 19 runs onto a lump of dirt or stone, each of the two wheels adapts as described above.

(Effect) The seedling planting machine pushes seedlings into the ground with a seedling planting rod that moves up and down from the machine body 4. Therefore, if the body 4 changes vertically relative to the ground, the seedlings may be planted too shallowly or too deeply, which is not favorable for growth. Further, when the body 4 tilts laterally along the slope of the ground, the seedlings are transplanted at an angle, and the balls of cabbage or Chinese cabbage are deformed.

In contrast, in the present invention, as described above, the body 4 of the seedling transplanter is supported so that it is within a certain distance from the ground, and is also supported so that it is within a certain angle close to the horizontal. Because it is supported, the transplanting depth of the seedlings is uniform, and the seedlings are placed almost vertically, which improves their growth and alignment.

(Example) Next, this invention will be explained in detail.

An engine 2 is fixed in front of a gear box 1, and frames 3, 3 extend rearward from the left and right sides of the rear of the gear box 1, forming a body 4.

Left and right wheel drive shafts 5.5 protrude from the gear box 1 to the left and right,
The ends of a pair of transmission cases 6.6 are respectively attached to the shafts 5.5 so as to be movable laterally. A pair of metal parts 7.7 are rotatably attached to the gear box 1 inside the transmission case 6.6, and as shown in FIG. passed through,
The transversely moved transmission case 6.6 is configured to be stopped by pins 9,9. The front axle 1 is attached to the lower end of the transmission case 6.
0.10 is attached, and the front wheel 11°11 is fixed to this. In addition, the wheel drive shafts 5, 5 and the front axle 10.1
0, sprockets 12,13 are each fixed in a transmission case 6,6, and a chain 14 is wound around the sprockets 12,13.

Metals 16 are attached to both ends of the horizontal shaft 15 fixed to the rear of the frames 3, 3.
．． 16 is rotatably attached, and its metal 16.16
The crossbar 17.17 is moved laterally and passed through so that it is fixed with a bolt. A pair of arms 18.18 is this horizontal bar 17
．． 17 extends from the outer end to the rear wheel, and a rear wheel 619.19 is provided at the rear end.

A cylinder 20 is provided in the center of the body 4 so as to face forward and backward, and a rod 21 that protrudes backward is configured to move in and out when pressure oil is taken in and out. A connector 22 is attached to the rear end of the rod 21.
will be provided. This connector 22 is mounted so as to be cushioned by a spring, not shown.

The tip of the bar 7a and the right end of the central rod 23 are connected by a horizontal rod 25. The left horizontal rod is composed of a cylinder 26 and a rod 27 extending behind it, and both ends thereof are connected to the left end of the central rod 23 and the end of a lever 7a that extends upward from the left metal 7.

That is, the front wheels 11, 11 are connected to the central rod 23, the horizontal rods 25 connected to the left and right of the central rod, the cylinder 26, and the rod 27.
are connected in a portal shape.

The middle part of the central rod 28 is pivoted to the connector 22 with a pin 24, and both ends thereof are bent downward, and each end is connected to a lever 16a made of metal 16.16.

16a are connected by horizontal rods 29, 29.

That is, the left and right rear wheels 19.19 are connected in a portal shape by the center rod 28 and the left and right side rods 29.29.

As shown in FIG. 1, a plate-shaped height detector 30 that slides on the upper surface of the ridge is rotatably attached to the lower center of the body 4 about a shaft 33 extending back and forth beside a horizontal shaft 31. As shown in FIG.

As shown in FIG. 3, a pump 34 is provided to be driven by the engine 2, and the pressure oil discharged from the pump is divided into two parts by a flow dividing valve 35, and one part passes through a valve box 36 and enters the cylinder. 20, and the other one is configured to be supplied to the cylinder 26 through a valve box 37. Bento box 3
6 is provided with a valve 38 connected by a rod 39 to a height detector 30, with the end of this detector 30 in position, the valve 38 is in a neutral position and the pump is 34
The pressure oil discharged by is sent back to the tank 40.

When the end of the height detector 30 falls, the valve 38 moves to the right, pressure oil enters the right chamber of the cylinder 20, and oil in the left chamber enters the tank 4.
0 and the rod 21 is returned into the cylinder 20. Also, when the end of the height detector 3o rises, the valve "38 moves to the left, pressure oil enters the left chamber of the cylinder 20, oil in the right chamber returns to the tank 40, and the rod 21 is pushed out. Configure.

A valve 41 is provided within the valve box 37 and connected to the tilt detector 32. When the inclination detector 32 is perpendicular to the body 4, the valve 41 is in a neutral position, and the pressure oil discharged by the pump 34 is returned to the tank 40.

When the tilt detector 32 approaches the right with respect to the fuselage 4 (the fuselage 4 tilts downward to the right), the valve 41 moves to the right, pressure oil enters the left chamber of the cylinder 26, and oil in the right chamber flows into the tank 40. Return to
Rod 27 protrudes. Also, if the aircraft tilts downward to the left,
Valve 41 is moved to the left, pressure oil enters the right chamber of cylinder 26 , oil in the left chamber returns into tank 40 , and rod 27 is arranged to return into cylinder 26 .

The valve 38 is configured so that it can be operated manually, and the heavy-duty tilt detector 32 is connected to the pin 4 at the neutral position.
Configure it so that movement can be stopped at 2.

In the figure, 43 indicates a seedling platform, and 44 indicates a seedling planting rod.

The seedling transplanter configured in this manner is placed in a field so that the left and right wheels straddle the ridge, and the body 4 is supported on the ground by the front wheels 11.11 and the rear wheels 19.19. The front wheels 11.11 are driven by the engine 2 to move forward, and the tip of the seedling planting rod 44 turns in an egg-shaped orbit when viewed from the side, and the seedlings on the seedling platform 43 are taken out and transplanted into the ridge.

The end of the height detector 30 rotates around the horizontal axis 31 and moves up and down according to the height of the ridge, but for example, the end approaches the body 4 side beyond a certain limit (ta body 4 (the seedlings tend to be planted too deep), and the rod 39 is connected to the valve 3.
Move 8 to the left. Then, one pressure oil discharged from the pump 34 and separated by the flow dividing valve 35 enters the left chamber of the cylinder 20, and the oil in the right chamber returns to the tank 40 and flows to the rod 21.
is pushed out later, and the central rod 23 is connected to the horizontal rod 25 and the cylinder 2.
6 to the rear, levers 7a and 7a move the transmission case 6.
6 clockwise in FIG. 1, and the front wheels 11.11 are lowered. Further, the rod 21 pushes the central rod 28 backward, and the horizontal rods 29, 29 push the lever 16a.

16a clockwise, the arm 18.18 pivots about the transverse axis 15 and the rear wheel 19.19 lowers. As a result, the body 4 rises and the distance between it and the top surface of the ridge is corrected.

Note that when the end of the height detector 30 descends and becomes far away from the body 4, each wheel moves in the opposite direction to the above, and the body 4 descends. Its operation is the opposite of the movement described above, and the explanation will be omitted since it will be almost redundant.

Next, when the field is tilted laterally, the body 4 is tilted laterally. Then, when the slope exceeds the limit and tilts downward to the right (for example, the slope detector 32 moves the valve 41 to the right. Then, the other pressure oil discharged from the pump 34 and separated by the diversion valve 35 is The oil in the right chamber enters the left chamber of the cylinder 26, returns to the tank 40, the rod 27 protrudes, and the left lever 7a
rotates counterclockwise, and the left transmission case 6 is connected to the wheel drive shaft 5.
The left front wheel 11 moves up in the same direction around the
The horizontal tilt of is corrected. At this time, the central rod 28 rotates clockwise around the pin 24 when viewed from above, the left and right levers 16a, 16a rotate counterclockwise and clockwise, respectively, and the left and right rear wheels 19°19 move up and down. , its lower end touches the ground.

In addition, if the aircraft 4 is tilted downward to the left,
The slope is corrected in the same manner as above.

Further, even when the ground is tilted in a twisted manner, each wheel contacts the ground while the body 4 remains horizontal.

[Brief explanation of drawings]

Fig. 1 is a side view of a seedling transplanter according to the present invention, Fig. 2 is a plan view of a portion of the seedling M machine with a front wheel lateral movement device added, and Fig. 3 is a layout diagram of each mechanism. It is. , the symbols in the figure are as follows. 4 Body 6 Transmission case 11 Front wheel 18 Arm 19 Rear wheel 21 Rod 23 Central rod 24 Pin 28 Central rod 30 Height detector 32 Inclination detector

Claims (1)

[Claims] A pair of front wheels 11, 11 and a pair of rear wheels 19, 19 are attached to the ends of a pair of transmission cases 6, 6 and arms 18, 18, which are pivoted on the left and right sides of the fuselage 4 and extend longitudinally, respectively, and are used to transmit left and right transmissions. The cases 6, 6 and the arms 18, 18 are connected by independent gate-shaped rods, and the fuselage 4 is equipped with a height detector 30 that detects the distance between the fuselage 4 and the ground, and a height detector 30 that detects the lateral inclination of the fuselage 4. A tilt detector 32 is provided to detect the front wheel 11.
, the middle of the gate-shaped central rod 23 on the 11 side and the height detector 30 are located between the middle of the gate-shaped central rod 23 on the 11 side and the height detector 30. front wheel 1
One of the gate-shaped horizontal rods on the 1 and 11 sides and the inclination detector 32 are arranged so that when the aircraft 4 tilts beyond a certain angle, the horizontal rod expands and contracts to move the front wheels 11 on one side up and down to correct the inclination. The gate-shaped central rod 28 on the rear wheels 19, 19 side connects the rear wheels 19, 19 with the front wheels 11, 1 by pushing and pulling the rod 21.
1. A seedling transplanter characterized in that the left and right rear wheels 19, 19 move up and down in the same direction as 1 and are connected to a rod 21 by a pin 24 at the middle part thereof so that the left and right rear wheels 19, 19 move up and down in opposite directions depending on the inclination of the ground. A support device for the aircraft.