JPH0457282B2 - - Google Patents

Description

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

(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 part lifts up due to the seedling feeding device, the pressing body that is rotatably supported cannot adequately hold down the seedling bed. Otherwise, there is a risk that the pressing body will rotate upward due to the pressing force of the lifting.
Another drawback is that the pressing force applied by the pressing body changes depending on the thickness of the seedbed.

In addition, in a seedling stand equipped with a seedling feeder, the seedlings may collapse near the seedling feeder, or the seedlings at the front end may rise above the bottom of the stand, resulting in improper spacing, depth, and number of plants. I was unable to plant seedlings.

(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 constructed above the seedling platform so as to cross the seedling platform. Further, the seedbed pressing body support rod is configured to be vertically slidable and adjustable, and the seedling platform is provided with a drive mechanism for vertically feeding the seedlings. The above-mentioned seedbed pressing body is intended to provide a seedling platform in an automatic rice transplanter, which is disposed over the entire operating range above the drive mechanism for vertically feeding the seedlings.

(E) Action The front end surface of the seedbed is brought close to the front side of the bottom plate, and the lower end of the seedbed presser is placed above the drive mechanism for vertically feeding the seedlings over the entire action range. Seedlings are planted while facing the upper surface 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 planting of seedlings in one example of the horizontal direction is completed, the seedling bed is moved forward a predetermined distance by the seedling feeding device, and the seedlings are planted while moving the seedling support section in the opposite horizontal direction.

While the seedbed is being transferred forward and during seedling planting, the seedbed is acted upon by a seedbed pressing body located on the upper surface of the bottom plate, particularly over the entire working range of the upper surface of the drive mechanism, so that the drive mechanism is activated. Even during this process, the seedbed can be prevented from collapsing and rising from the bottom plate, and the seedlings can be transferred and planted in a regular manner.

(f) Effects According to the present invention, the seedbed pressing body support rod is disposed in a transverse manner above the seedling platform, the seedbed pressing body is vertically disposed on this, and the support rod can be adjusted and fixed by sliding up and down. Therefore, when the seedling bed part is lifted up by the seedling feeding device, it can be held down sufficiently.

Furthermore, since the seedbed pressing body is disposed over the entire area of action above the drive mechanism for vertically feeding the seedlings, it is possible to press down the seedbed according to the thickness of the seedbed part. , 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 section 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 near 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 plate 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 located directly above the long groove 6, and the holding portion 8 is fixed to the support rod 10 by the elastic spring 12 and the vertical rod. 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 pressing body 13, and the elastic springs 12 of the vertical rod pressing body 13 are formed.
By providing a concave groove 16 that fits into the vertical rod 9 on the surface pressed against the vertical rod 9 by supporting the vertical rod 9 so as to be able to slide up and down, the seedbed pressing body 11 can be slid in the vertical position. The structure allows for dynamic adjustment and position fixation after adjustment.

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 L-shaped lower side 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 front and rear ends of the lower side are bent upward. This prevents the seedlings from sinking into the seedbed 17.

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

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

Seedlings are planted while the front end surface of the seedbed 17 approaches the front side of the bottom plate 4 and the lower end of the seedbed presser part 3 faces the upper surface of the seedbed 17 to prevent the seedbed 17 from floating up.

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, so that the drive mechanism 7 Even during operation, the seedbed 17 can be prevented from collapsing and rising from the bottom plate 4, and regular seedling transfer and seedling planting can be carried out.

According to the present invention, the seedbed pressing body support rod is disposed in a transverse manner above the seedling platform, the seedling bed pressing body is vertically disposed on this, and the support rod is configured to be able to be adjusted and fixed by sliding up and down. This has the effect of sufficiently holding down the seedling bed when it floats up due to the seedling feeding device.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the seedling stand of the present invention, FIG. 2 is a sectional view taken along the line -- in FIG. 1, and FIG. 3 is a cross-sectional plan view of the holding part 8. DESCRIPTION OF SYMBOLS 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, 1
1: Seedbed pressing body.

Claims (1)

[Claims] 1. A seedbed pressing body 11 is disposed above the seedling platform, and the seedbed pressing body 11 is vertically attached to a seedbed pressing body support rod 10 which is installed above the seedling platform and across the seedling platform. , furthermore, a seedbed pressing body support rod 1
0 can be vertically slidably adjusted and fixed, and the seedling platform is provided with a drive mechanism 7 for vertically feeding the seedlings. A seedling stand in an automatic rice transplanter that is arranged above the rice transplanter over the entire operating range.