JP2002171810A - Ground leveler for seedling planting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ground leveler for a seedling planting machine for leveling the ground in stable accuracy through evenly raking the surface of soil in front of a float mounted on a seedling planting unit with slight vertical swing motion of the float. SOLUTION: This ground leveler for a seedling planting machine has such a construction as to be characterized by being provided with a spiral 3 for earthing up sideways through undergoing rotation interlockingly with a seedling planting unit 1 in front of a sliding float 2 mounted on the seedling planting unit 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soil leveling device for a seedling planter, in which a soil surface immediately before sliding of a float is raked to stably and smoothly perform a sliding leveling action by the float. .

[0002]

2. Description of the Related Art A seedling plant is supported by a float that slides on the soil surface, and seedling is planted by a planting device on a soil surface leveled by the float.

[0003]

In the seedling plant having such a float, the leveling action of the soil by the float is small and has a limit on the surface of the soil such as a ridge or a headland where the unevenness is remarkable. It changes remarkably, for example, seedling planting becomes deep or shallow. According to the present invention, a flattening spiral or a rake is provided on the front side of the float to scrape the soil surface, so that the float can be smoothly leveled.

[0004]

According to the first aspect of the present invention, the float 2 mounted on the seedling plant 1 and slid is interlocked and rotated from the side of the seedling plant 1 to the side. A soil leveling device for a seedling plant, which is provided with a soil helix 3.

[0005] The invention according to claim 2 is that, in front of a float 2 which is mounted on the seedling plant 1 and slides, a soil helix 3 which is brought to the side by rotation and covers the soil helix 3 while covering the soil helix 3 A spiral cover 5 having a leveling part 4 for leveling the soil horizon of the soil horizon 3 is disposed, and a lateral end of the leveling part 4 located behind the horizon spiral 3 is outwardly rearward. The arrangement of the seedling plant leveling device is characterized in that the inclined receding surface 7 is formed.

According to a third aspect of the present invention, a notch 9 is formed in a front portion of a float 2 mounted on the seedling plant 1 and slid, in a portion opposed to an elevating cylinder 8 for moving the seedling plant 1 up and down. And a rake 10 for leveling the soil surface is provided.

[0007]

According to the first aspect of the present invention, the seedling planting device 1 mounted on the rear side of the vehicle body performs a seedling planting operation in conjunction with the power take-out shaft of the vehicle body. At the same time, the soil spiral 3 provided on the front side of the float 2 of the seedling planting apparatus 1 is driven and rotated by the transmission mechanism on the side of the seedling planting apparatus 1, and the soil surface on the front side of the float 2 is leveled.

For this reason, the soil surface on which the float 2 slides is
Even if there is a large uneven surface, it is evened out, and the leveling action by the float 2 is performed accurately and smoothly. Further, the soil helix 3 can be moved up and down integrally with the seedling planting apparatus 1 and can share a clutch or the like for turning on and off the transmission, so that the transmission mechanism can be simplified, and the operation can be performed easily and easily.

According to a second aspect of the present invention, the uneven surface of the soil is scraped by the rotation of the soil helix 3 and the float 2
Can be smoothly performed. The scattering of muddy soil due to the rotation of the soil spiral 3 is prevented by the spiral cover 5, the accumulation on the float 2 on the rear side can be prevented, and the leveling action by the leveling portion 4 is effectively performed. This flat part 4
In order to make the soil guided in the lateral direction easily escape to the rear side by the retreating surface 7 of the lateral end, the soil pressure on the soil side spiral 3 on the front side is reduced, and mud clogging in the soil side spiral 3, It is possible to prevent the wrapping of straw waste and the like, and to reduce the load on the porcelain spiral 3 so that the porcelain burying can be performed smoothly.

According to the third aspect of the present invention, the rake 10 on the front side of the float 2 flattens the soil surface.
Leveling by the float 2 is performed smoothly. In addition, the float 2 and the rake 10 are also raised as the seedling plant 1 is raised. At this time, the notch is notched even if the front-rear position of the raising / lowering cylinder 8 and the frontmost rake 10 for performing the lifting action approaches. The portion 9 makes it difficult to interfere or disturb, so that the front-rear distance between the vehicle body and the seedling planting device 1 is restricted from being increased irrespective of the configuration of the rake 10, so that a compact configuration can be achieved.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is applicable to a float type seedling planting apparatus which is mounted on a rear side of a riding type tractor body so as to be able to ascend and descend and has a float at a lower portion to slide on a soil surface. Hereinafter, the schematic configuration of the seedling transplanter will be described using reference numerals of the embodiments shown in the drawings.

The tractor body 11 is of a four-wheel drive type having a front wheel 12 and a rear wheel 13, and is operated by operating a steering handle 15 on a steering post 14.
, And a driver's seat 16 is provided in the center of the floor 17 in a riding mode. An engine is mounted on a front portion of the steering post 14 and travels by transmitting a front wheel 12, a rear wheel 13 and the like via a transmission mechanism such as a transmission case, and a seedling plant connected to a rear portion from a power take-off shaft 18. 1 to transmit the seedlings.

A lift link 19 in the form of a parallel link is provided at the rear end of the vehicle body 11 with a lift cylinder 2 which is expanded and contracted by hydraulic pressure.
It is raised and lowered by 0. The hitch 22 of the seedling plant 1 is attached to and detached from the link hitch 21 at the rear end of the lift link 19. Lift arm 2 integrated with front end of lift link 19
3 is connected to a plunger 24 that moves in and out of the tip of the lift cylinder 20, and the seedling plant 1 is raised and lowered by the plunger 24 moving in and out.

In the seedling planting apparatus 1, a seedling tank 26 inclined downward and backward is supported on the upper part of a seedling frame 25 so as to be able to reciprocate right and left. A planting claw 27 for separating and planting the seedlings fed from the seedling tank 26 is provided, and a center float 2 and side floats 28 on both left and right sides thereof are provided at a lower portion. Planting claws 27 on the soil surface leveled by 28
Seedling planting is carried out.

The center float 2 is a seedling plant frame 2
5 swings up and down around the support shaft 29 with respect to 5, and the swing of the center float 2 interlocks the elevation control valve 31 in the hydraulic circuit of the lift cylinder 20 via the interlocking mechanism 30, and the soil surface becomes deep. When the center float 2 moves upward beyond a certain area, the lift cylinder 20 is extended to raise the seedling planting device 1, and conversely, when the soil surface becomes deep and the center float 2 moves down, the seedling planting device 1 descends. By doing so, the seedling planting depth is controlled to be kept constant.

Here, the invention according to claim 1 is mainly based on FIGS. 1 to 3, in which the float 2 mounted on the seedling plant 1 and slid is interlockingly rotated from the seedling plant 1 side. And a soil leveling device for a seedling plant, which is provided with an earthen spiral 3 for soiling to the side.

As a result, the seedling planting device 1 mounted on the rear side of the vehicle body performs a seedling planting operation in conjunction with the power take-out shaft of the vehicle body. At the same time, the soil spiral 3 provided on the front side of the float 2 of the seedling planting apparatus 1 is driven and rotated by the transmission mechanism on the side of the seedling planting apparatus 1, and the soil surface on the front side of the float 2 is leveled.

For this reason, the soil surface on which the float 2 slides is
Even if there is a large uneven surface, it is evened out, and the leveling action by the float 2 is performed accurately and smoothly. Further, the soil helix 3 can be moved up and down integrally with the seedling planting apparatus 1 and can share a clutch or the like for turning on and off the transmission, so that the transmission mechanism can be simplified, and the operation can be performed easily and easily.

Here, the hitch frame 32 having the hitch 22 has a transmission case 33, and the lower part of the hitch frame 3 is mounted on the lower part of the hitch frame 32. The input shaft 37 of the transmission case forming the seedling planting frame 25 is interlocked with the power take-out shaft 18 via a transmission shaft 36 having a universal joint 34 and an expansion joint 35. The input shaft 41 on the transmission case 33 is interlocked with the lower shaft 39 via the transmission shaft 40, and the earthen spiral 3 is interlocked with the transmission mechanism for transmitting the seedling plant 1. The seedling plant 1 and the transmission clutch 42 of the soil spiral 3 are provided on the power take-out shaft 18 on the vehicle body 11 side. Seedling frame 25
Of the planting shaft 4 for transmitting the planting claws 27 from the transmission shaft 43 of
4, the lateral movement mechanism 46 of the seedling tank 26, the seedling feeding belt 4
5 etc. can be transmitted.

The earth spiral 3 is provided on the front side of the center float 2 and the upper side is covered with a spiral cover 5. By the transmission rotation from the transmission case 33, the soil can be moved from the center to the left and right sides. The left and right ends of the spiral cylinder shaft 38 are supported by the arm 47 and the transmission case 33. The earthen spiral 3 is configured to be able to move up and down with respect to the seedling plant frame 25 via the parallel link 50 by the expansion and contraction of the expansion and contraction shaft 48. The telescopic shaft 48 can be adjusted by operating a handle 49.

When the lift cylinder 20 is shortened to lower the seedling-planting device 1 to bring each float 2, 28 into contact with the ground, at the same time the soil spiral 3 also contacts the soil surface in front of the center float 2, so that the seedling-planting state is maintained. Become. When the transmission clutch 42 is engaged, the respective parts of the seedling planting apparatus 1 are transmitted, and the soil spiral 3 is transmitted. As the fuselage advances, the soil helix 3 flattens the soil surface from the center to both sides. Center float 2
In this method, the soil is smoothed by the soil helix 3 so that leveling is easily performed. For this reason, the up-and-down control which raises and lowers the seedling plant 1 in conjunction with the raising and lowering control valve 31 by the vertical swing of the center float 2 is performed smoothly, stably and accurately.

Next, an invention according to a second aspect mainly based on FIGS. 4 and 5 is an earthen helical device in which the float 2 attached to the seedling plant 1 and slid to the side by rotation is moved to the side. 3 and a spiral cover 5 having a leveling portion 4 for covering the soil helix 3 and leveling the soil horizon of the soil helix 3 are arranged. At the lateral end of the flat portion 4, a receding surface 7 that is inclined outward and rearward is formed to constitute a leveling device for a seedling planter.

As a result, the uneven surface of the soil is flattened by the rotation of the soil helix 3, and the leveling action by the float 2 can be performed smoothly. The scattering of muddy soil due to the rotation of the soil spiral 3 can be prevented by the spiral cover 5, and the accumulation on the float 2 on the rear side can be prevented, and the leveling action by the leveling portion 4 can be effectively performed. The soil guided laterally by the leveling portion 4 is easily escaped to the rear side by the receding surface 7 at the lateral end.
The soil pressure on the bearing 6 can be reduced to prevent the bearing portion 6 from being clogged with mud or wrapping with straw waste, etc., and the load on the soil helix 3 can be reduced to allow a smooth soil erosion. Can be.

Here, the rear end of the spiral cover 5 covering the upper part of the soil helix 3 hangs down and slides on the soil surface B as a flat part 4, whereby the central part of the soil helix 3 is moved by the soil helix 3. Leveling the soil surface that is swept to the side from the side. On the left and right sides of the leveling portion 4, there is formed a retreating surface 7 which is inclined outward and rearward so as to be spaced apart from the front side spiral 3.
The retreating surface 7 is formed to face the rear of the bearing 6 with respect to the transmission case 33 and the arm 47 at both ends of the front side spiral 3.

The soil surface swept by the rotation of the soil helix 3 is further leveled by the leveling portion 4 of the spiral cover 5 and slid by the center float 2. This flat part 4
The soil that is leveled out is pushed out to the left and right sides, but is guided backward by the retreating surface 7. Therefore, even when there is a large amount of extruded mud, the mud pressure on the front bearing 6 is reduced, and the soil is spiraled. The resistance due to clogging of the drive 3 and the winding of straw waste can be reduced. Thus, the receding surface 7
Is guided to the space between the center float 2 and the side float 28 on the rear side.

Furthermore, the invention according to a third aspect mainly based on FIGS. 6 to 8 shows a lifting cylinder 8 for raising and lowering the seedling plant 1 on the front side of a float 2 mounted on the seedling plant 1 and sliding. And a rake 10 for forming a notch 9 in the opposite portion of the rake 10 to scrape the soil surface is provided.

Thus, the rake 10 on the front side of the float 2 flattens the soil surface.
Leveling is performed smoothly. In addition, the float 2 and the rake 10 are also raised as the seedling plant 1 is raised. At this time, the notch is notched even if the front-rear position of the raising / lowering cylinder 8 and the frontmost rake 10 for performing the lifting action approaches. The portion 9 makes it difficult to interfere or disturb, so that the front-rear distance between the vehicle body and the seedling planting device 1 is restricted from being increased irrespective of the configuration of the rake 10, so that a compact configuration can be achieved.

Here, the rake 10 is arranged in front of the center float 2 so as to be able to move up and down integrally with the seedling plant 1. I do. Notch 9 at the center of this rake 10
At the rear of the lifting cylinder 8. At the position where the seedling plant 1 is raised, the tip of the plunger 24 extending from the lifting cylinder 8 approaches the notch 9 of the rake 10 or is in a state where it can intervene.
The notch 9 can be set as an interval 52 between the rake claws 51 of the rake 10 itself. A cutout configuration can also be used.

The rake 10 is mounted in such a manner that a pair of left and right mounting arms 58 are projected forward from the seedling plant frame 25, and rake arms 59 mounted on the left and right sides of the rake 10 at the front end thereof are turned around the rake shaft 53. Make it movably supported. The rake arm 59 springs downward from the mounting arm 58 by the spring 54. When the scratching resistance acts on the rake 10 to a large extent, the rake 10 is retracted upward against the spring 54 to remove the straw debris, the earth mass, etc., deposited by the scratching from the rake 10 and return to the scratching state again. It is.

Such a rake 10 may be configured to swing up and down together with the center float 2 in accordance with the raising and lowering control of the seedling plant 1. However, the rake 10 may be provided at an independent position irrespective of the center float 2. You can also. The tip of the plunger 24 of the elevating cylinder 8 is attached to the arm 55 integrated with the lift link 19 with a pin 56, and the expansion and contraction of the plunger 24 causes the lift link 19 to rotate around the link hinge 57 with respect to the body frame 11. Is turned up and down. When the lift link 19 is moved down to the seedling planting position, the floats 2 and 28 are separated downward from the lift link 19 and are in a ground contact state, and the rake 10 is located in front of the slide float 2. It can scratch the soil. When the lift cylinder 19 is moved upward and the seedling transplanter 1 and the rake 10 are brought to the non-seedling work position, the plunger 24 for raising the lift link 19 and the rake 10 come close to each other. The formation of the portion 9 can prevent such interference. Therefore, the plunger 24 can be moved up and down in such a manner that the tip of the plunger 24 can intersect with the notch 9 of the rake 10.

In this way, the distance between the lifting cylinder 20 and the center float 2 can be reduced as much as possible.
In the case where the rake 10 is provided, the lift link 19 is not set to be particularly long.

[Brief description of the drawings]

FIG. 1 is a side view of a seedling plant apparatus.

FIG. 2 is a diagram of the transmission mechanism.

FIG. 3 is a plan view of a seedling planter.

FIG. 4 is a plan view of a porcelain spiral portion showing a partially different embodiment.

FIG. 5 is a side view thereof.

FIGS. 6A and 6B are a plan view and a front view of a rake unit showing another embodiment.

FIG. 7 is a plan view thereof.

FIG. 8 is an operation side view thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seedling plant 2 Float 3 Soil side spiral 4 Leveling part 5 Spiral cover 6 Bearing part 7 Retreat surface 8 Elevating cylinder 9 Notch part 10 Rake

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Narutoshi Ishioka 1-Family Yachikura, Tobe-cho, Iyo-gun, Ehime Pref.

Claims (3)

[Claims] 1. A seedling, characterized in that an earthen spiral 3 is provided on the front side of a float 2 which is mounted on a seedling planting apparatus 1 and slides, which is interlockingly rotated from the side of the seedling planting apparatus 1 and draws soil to the side. Planting equipment leveling equipment. 2. A squirrel spiral 3 which is attached to a seedling plant 1 and slides on the front side of a float 2 which slides on the side.
And a spiral cover 5 having a leveling portion 4 for covering the soil helix 3 and leveling the soil horizon of the soil helix 3, and a leveling member located behind the soil helix 3. A leveling device for a seedling planter, characterized in that a retreating surface 7 that is inclined outward and rearward is formed at a lateral end of the portion 4. 3. An elevating cylinder 8 for moving the seedling plant 1 up and down in front of a float 2 mounted on the seedling plant 1 and sliding.
A rake 10 for forming a notch 9 at the opposite portion of the rake 10 to scrape the soil surface.