JPS6232807A - Ground leveling float mount apparatus of 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 (Field of Industrial Application) The present invention relates to a leveling float attachment device for a transplanter.

(Conventional device) Conventionally, Japanese Patent Publication No. 48-6848 and Japanese Patent Publication No. 49-17
As seen in Publication No. 808, there have been known transplanters that accommodate a rotary seedling planting device in which seedling planting tools are attached to the front and rear sides of a rotating case. The structure is such that the rotating case rotates on the outside of the soil leveling float that levels the ground, and the rotating case is not placed on the soil leveling float, and the rear pivot of the soil leveling float is lower than the center of rotation of the rotating case. It was a separate structure. In other words, even when the earth leveling float rotates up and down, the rotating case and the earth leveling float do not interfere with each other at all.

On the other hand, as in the conventionally known Japanese Utility Model Application Publication No. 60-55314, there was a structure in which a ground leveling float was disposed below the rotating case, but in this case, the rear pivot of the leveling float was located closer to the center of rotation of the rotating case. It was also quite far back.

(Problems to be Solved by the Invention) Among the above-mentioned conventional techniques, those disclosed in Japanese Patent Publication No. 48-6848 and Japanese Patent Publication No. 49-17808,
There was a problem in that the rotating case was directly inserted into the soil and rotated, causing mud to be thrown upwards.

Further, in the method disclosed in Japanese Utility Model Application Publication No. 60-55314, when the leveling float moves up and down.

There is a problem that the earth leveling float and the rotary case may interfere with each other, and for this reason, the distance between the lower end of the rotation trajectory of the rotary case and the upper surface of the earth leveling float must be made considerably large. There was a problem in that the seedling planting tool had to be made larger and the planting locus had to be made larger, resulting in large fluctuations in the depth of seedling planting.

(Technical means for solving the problem) That is, the rotation center (
A transplanter having a rotary seedling planting device (8) in which seedling planting tools (15), (15) are attached to the sides of the rotating case in at least two locations spaced apart from the rotary case by the same appropriate distance from A rotary case (10) is provided on the top of the soil leveling floats (10), (11) for leveling the soil surface for seedling planting by the seedling planting tools (15), (15), and this leveling float (10)
), the rear pivot portion (d) of (11) is located near the rotation center (main) of the rotation case (14) in side view, and
The soil leveling float mounting device for the transplanter is configured at a position closer to the transplant locus (a).

(Operations and Effects of the Invention) Since the present invention has the above-described configuration, the vertical movement of the soil leveling float can be increased without interfering with the rotating case, and the land leveling adaptability is widened, and seedling planting It has the effect of reducing variations in depth.

(Example) An example of the present invention will be described in detail based on the drawings. (1
) is a towing vehicle body, which is a riding-type tractor in the illustrated example, but it goes without saying that it may be a walking-type vehicle body.

(2) shows the cockpit, (3) shows the rear wheels for propulsion, (4)
(5) is a lifting link mechanism, and (5) is a hydraulic cylinder device.

(8) is the transplanter, and the transmission case (7) also serves as the frame.
), a seedling planting device (8) (described later), a seedling tank (9) that reciprocates from side to side, and soil leveling floats (10), (11), (11) at the center and sides for leveling the soil surface, etc. .

This transplanter (8) is connected to the lifting link mechanism (4).
It is rotatably attached to the rear of the vehicle via a rolling hitch (12).

The seedling planting device (8) is attached to a rotating shaft (13) protruding from the side of the transmission case (7) and rotated by transmission, and the front and rear intermediate portions thereof are attached to the front and rear of the rotation case (14) which is rotated by transmission. Rotating case (14) with seedling planting tool (15) and (15) on the outside
The seedling planting tool (15) is configured so that the transplanting trajectory (a) at the tip of the segmentation claw (15a) has an elliptical shape that is elongated in the vertical direction. are doing. The seedling pusher (15b) provided on the back side of the separation claw (15a) moves downward when the separation claw (15a) plunges into the soil surface to transplant the seedling, and then moves upward. It is provided. Note that it is convenient to make the upwardly drawn portion of the transplanting locus (a) vertical and approximately semi-elliptical to reduce straining of the seedlings during transplantation.

Center leveling float (1G) and side leveling float (1G)
1) prepares the ground for planting seedlings using the seedling planting device (8), and the rear part is pivotally supported on the transmission case (7) side by a horizontal pin (18), and the front part is attached to the top and bottom. Transmission case (7) with expansion and contraction links (17) and (18) for free movement.
attached to the side.

Then, each of these leveling floats (10), (11), (1
1) The left and right outer surfaces or one side surface is constricted inwardly from the front to the rear in plan view, and the rear part is narrow, and the upper surface of the outer part of the narrow part is concave downward. It is configured to have a thinner shape.

Then, the ground leveling floats (10), (11), (11
) on the rear side of the constricted part (12) of the seedling planting tool (15).
) is located above the concave portion (C), and the rotating case (14) is configured to be rotated by transmission.

Also, leveling floats (10), (11), (11)
The rear pivot part (d) (pivot part by pin (16)) is
In side view, the rotation center (
It is located slightly forward and lower of the book), close to the trajectory (a), and located close to the center of rotation (, t).

In the embodiment, the pin (16) is directly inserted into the transmission case (7) to attach the soil leveling float, but this pin (IB) can be moved slightly up and down using the operating lever to adjust the seedling planting depth. Of course, an insertion hole for a pin (IB) may be formed in the arm that swings by the operating lever so that the height can be adjusted.

Next, to explain the action of the upper side, when each part is rotated by transmission while propelling the towing vehicle body (1), each ground leveling flow)
(10) and (11) level the soil surface, and the rotating case (1
With the rotation of 4), the seedling planting tools (15) and (15) operate, and the separation claws (15a) draw the transplanting trajectory (a), and the seedlings are removed one by one from the seedling tank (8). The seedling presser (15b) pushes down the engaged seedlings to release them, and the seedlings are planted one after another.

At this time, the front sides of the soil leveling floats (10) and (11) move up and down due to the unevenness of the topsoil surface, but since the rear pivot part (d) is located near the center of rotation of the rotating case (14), the rotating case (14) unexpectedly floated (10)
, (11) does not collide with the upper surface, and since the pivot point (d) is located on the side approaching the transplanting trajectory (a), fluctuations in the planting depth of seedlings are reduced and reliable planting is possible.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a side view of the main part, Fig. 3 is a rear view of the main part,
FIG. 4 is a plan view of the soil leveling float. In the figure, (8) is a seedling planting device, (10) and (11) are soil leveling floats, (14) is a rotating case, (15) is a seedling planting tool, (a) is a transplanting trajectory, (d) is The pivot point of the soil leveling float, (ne) indicates the center of rotation of the rotating case.

Claims (1)

[Claims] A rotary type in which seedling planting tools (15), (15) are attached to the sides of the rotating case (15) at at least two locations spaced apart from the center of rotation (E) by the same appropriate distance from the center of rotation (E) of the rotating case (14) which is rotated by transmission. In a transplanter having a seedling planting device (8), a rotary case ( 14), and this leveling float (10),
A soil leveling float for a transplanter in which the rear pivot (d) of (11) is located near the rotation center (e) of the rotating case (14) and closer to the transplant trajectory (a) when viewed from the side. Mounting device.