JPH0457283B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention is an automatic rice transplanter that uses a so-called flat plate seedbed that can raise seedlings in a flat plate shape, which prevents the seedlings from collapsing and can reliably transfer the seedlings. This relates to a seedling stand in a machine.

(b) Prior Art Conventionally, there are seedling mounting stands for automatic rice transplanters, such as those disclosed in Japanese Utility Model Application Publication No. 52-27823.

(c) Problems to be Solved by the Invention As seen in the above-mentioned Japanese Utility Model Application Publication No. 52-27823, in the case where a pressing body is provided to press the upper surface of the seedbed part downward, the proximal end support of the pressing body is It is difficult to adjust the pressing body up and down, and if the seedling bed lifts up due to the seedling feeding device, the pressing body that is rotatably supported is not enough to hold the seedbed up. There is also a problem that the pressing force of the lifting body may cause the pressing body to rotate upward, and that the pressing force of the pressing body changes depending on the thickness of the seedbed.

In addition, in a seedling platform equipped with a seedling feeding device, the seedlings may collapse near the seedling feeding device or the seedlings at the front end may rise above the bottom of the seedling platform.
It was not possible to plant seedlings at the optimum spacing, depth, and number of plants.

(d) Means for Solving the Problems In the present invention, a seedbed pressing body is disposed above the seedling platform, and the seedbed pressing body is adjusted to slide up and down parallel to the bottom plate of the seedling platform. Moreover, the seedling platform is provided with a drive mechanism for vertically feeding the seedlings, and the seedbed pressing body is configured such that the seedling bed presser is able to move over the entire action range above the drive mechanism for vertically feeding the seedlings. It is an object of the present invention to provide a seedling mounting stand for an automatic rice transplanter that is arranged over a wide range of areas.

(e) Operation: Seedlings are planted while bringing the front end of the seedbed close to the front side of the bottom plate and making the lower end of the seedbed presser face the top surface of the seedbed to prevent the seedbed from floating up.

While the seedling support section is moving laterally, the seedling feeding device is stopped, and a predetermined number of seedlings are planted each time a seedling planting claw (not shown) is operated.

When one row of seedlings has been planted in the horizontal direction, the seedling bed is moved forward by a predetermined distance by the seedling feeding device, and the seedlings are planted while the seedling support section is moved in the opposite horizontal direction.

While the seedbed is being transported forward and during seedling planting, the seedbed is acted upon by a seedbed pressing body which is located over the entire area on the upper surface of the bottom plate, in particular on the upper surface of the drive mechanism, so that the drive mechanism is Even during operation, it is possible to prevent the seedbed from collapsing and rising from the bottom plate, and to carry out regular transfer and planting of seedlings.

(F) Effect The seedling platform of the present invention is configured such that the seedling pressing body can be vertically slidably adjusted and fixed in a state substantially parallel to the bottom plate of the seedling platform, so that the seedling bed section is not lifted up by the seedling feeding device. When the seedling is planted, it can be pressed down sufficiently, and there is no fear that the pressing force will change depending on the thickness of the seedbed.

Furthermore, since the seedbed pressing body is disposed over the entire action range above the drive mechanism for vertically feeding the seedlings, it is possible to press down the seedbed according to the thickness of the seedbed portion. The vertical feeding of seedlings is carried out accurately.

(G) Examples The seedling mounting stand of the present invention will be explained below with reference to the attached drawings.

The seedling stand of the present invention includes a seedling support part 1 consisting of a bottom plate 4 and a side wall 5, and a seedling feeding device 2 provided on the bottom surface of the bottom plate 4.
and a seedbed holding part 3, which is the most important feature of the present invention, and which is provided on the seedling support part 1 so as to be vertically adjustable.

The seedling support part 1 alternately connects a plurality of bottom plates 4 and side plates 5, and has long grooves 6, 6 parallel to the side walls 5 at predetermined positions on one side of the bottom plate 4 that does not connect the side walls 5.
... has been established.

The seedling feeding device 2 is provided with driving mechanisms 7, 7, etc. such as roller belts on the lower surface of the bottom portion 4 so as to be fitted into the long grooves 6, 6, and is connected to a prime mover (not shown).

The seedbed holding part 3, which is the most important aspect of the present invention, penetrates the holding parts 8, 8 and vertical rods 9, 9 on both sides, which are set on the outer surfaces of the side walls 5, 5 at both ends of the seedling support part 1, into the holding parts 8, 8. It consists of a supported seedbed pressing body support rod 10, a plurality of approximately L-shaped seedbed pressing bodies 11, 11, whose upper ends are fixed to the seedbed pressing body support rod 10,
Each seedbed pressing body 11 is cantilevered at the upper free end of the L-shape and fixed to the support rod 10 so as to be positioned directly above the long groove 6, and the holding portion 8 is fixed to the support rod 10 using an elastic spring 1.
Through holes 15, 15 through which the vertical rod 9 can pass are bored in the upper and lower opposing surfaces of the casing 14 containing the vertical rod 2 and the vertical rod presser 13. By providing a concave groove 16 that fits with the vertical rod 9 on the surface to be pressed and supporting the vertical rod 9 so that it can slide up and down, the seedbed pressing body 11 can be slid to the vertical position and the position after the adjustment can be adjusted. It is configured to be fixed.

Further, the lower side of the L shape of the approximately L-shaped seedbed pressing body 11 is configured to be parallel to the bottom plate 4 of the seedling platform.
Therefore, the pressing body 11 is configured to be vertically slidable and fixed in position substantially parallel to the bottom plate 4 or in a nearly parallel state.

In addition, the free end tip of the lower side of the L-shape of the seedbed pressing body 11 is bent upward, and both the front and rear ends of the lower side are bent, so that when the seedbed 17 is lifted up, the lower side is bent upward. This prevents the front and rear end portions from sinking into the seedbed 17.

The operation of the seedling stand of the present invention having the above structure is as follows.

A flat plate-shaped seedling bed 17 in which seedlings have been raised is placed on the seedling support part 1 with the seedling body part 18 facing upward.

The front end surface of the seedbed 17 is brought close to the front piece of the bottom plate 4, and the lower end of the seedbed holding part 3 is opposed to the upper surface of the seedbed 17 to prevent the seedbed 17 from floating up while planting the seedlings.

While the seedling support part 1 is moving in the lateral direction A, the seedling feeding device 2 is stopped, and a predetermined number of seedlings are planted each time a seedling planting claw (not shown) is operated.

When the planting of seedlings in one row in the horizontal direction is completed, the seedling bed 17 is transported forward a predetermined distance by the seedling feeding device 2, and
Seedling planting is performed while the seedling support section 1 moves in the lateral direction A' opposite to the above.

While the seedbed 17 is being transferred forward and while seedlings are being planted, the seedbed 17 is located on the top surface of the bottom plate 4, particularly on the top surface of the drive mechanism 7, and is acted on by the seedbed pressing body 11, so that the drive mechanism Even while the seedbed 7 is in operation, the seedbed 17 can be prevented from collapsing and rising from the bottom plate 4, and the regular transfer and planting of seedlings can be carried out.

As described above, the seedling platform of the present invention is configured such that the seedbed pressing body can be slid up and down and fixed in a state substantially parallel to the bottom plate of the seedling platform, so that the seedling bed portion is moved by the seedling feeding device. It has the effect that it is possible to sufficiently press down when the seedlings rise, and there is no fear that the pressing force will change depending on the thickness of the seedbed.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the seedling stand of the present invention, and FIG. 2 is a sectional view taken along the line -- in FIG. 1. FIG. 3 is a cross-sectional plan view of the holding part 8. 1: Seedling support part, 2: Seedling feeding device, 3: Seedling bed holding part, 4: Bottom plate, 5: Side wall, 6: Long groove, 7: Drive mechanism, 8: Holding part, 10: Seedling bed pressing body support rod.

Claims (1)

[Claims] 1 A seedbed pressing body 11 is disposed above the seedling platform, and the seedbed pressing body 11 is configured so that it can be slid vertically and fixed in parallel to the bottom plate 4 of the seedling platform, and is also configured to allow seedling The platform is provided with a drive mechanism 7 for vertically feeding the seedlings, and the seedbed pressing body 11
1 is a seedling mounting table in an automatic rice transplanter, which is disposed over the entire operating range above the drive mechanism 7 for vertically feeding the seedlings.