JP2852279B2 - Rice transplanter seedling guide structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for planting seedlings in a rice transplanter.

[0002]

2. Description of the Related Art In general, a rice transplanter is provided with a seedling rest on which seedlings are placed, an outlet for seedlings formed below the seedling stand, and planting claws. The seedlings (roots) are planted in the field by holding the roots of the seedlings, taking out the seedlings, and inserting the planting claws into the field. In this case, a pair of right and left seedling guides extending downward from the outlet along the passage locus of the planting nails are provided, and after the seedlings are taken out from the outlet by the planting nails, the planting nails reach the lower field and the seedlings reach. Until the seedlings are planted, the seedling guide guides the roots of the seedlings from the left and right, and the seedling guides give light resistance to the roots of the seedlings, so that the seedlings (roots) do not fall from the planting nails. There are many.

[0003]

There are many mat-type seedlings used as seedlings for planting, and the mat-type seedlings are germinated by sowing seed seeds on the floor soil in a state where the soil is spread in a nursery box. Produced by. Therefore, the root portion of the seedling that the planting claw takes out from the outlet is in a state where the root of the seedling and the floor soil are intertwined. In this case, the type of floor soil to be used (for example, floor soil with a lot of clay or floor soil with a lot of sand)
Also, depending on the thickness of the floor soil laid in the nursery box, the nature of the roots of the seedlings, etc., the roots of the seedlings may be hard, soft, sticky and difficult to break, or brittle and easily break.

[0004] Thus, for example, when the roots of the seedlings are brittle due to sandy floor soil, etc.,
By the time it reaches the lower field and is planted,
The roots of the seedlings collapse due to the resistance received from the seedling guide, and the seedlings (roots) fall from the planting nails before reaching the lower field,
The planting claws may cause a condition where the seedlings cannot be planted normally in the field. Also, for example, when the root of the seedling is hard, if the resistance from the seedling guide is not sufficiently applied to the root of the seedling, the planting nail alone cannot hold the seedling (root) until it reaches the lower field as described above. In some cases, seedlings (roots) may fall off the planting nails.

[0005] Conversely, if the roots of the seedlings are sticky due to, for example, clay floor soil, the seedlings removed by the planting nails will
By the time it reaches the lower field and is planted,
When the root of the seedling bites into the planting nail due to the resistance received from the seedling guide, it becomes difficult for the root of the seedling to separate from the planting nail, and when the planting nail reaches the lower field and plant the seedling,
The roots of the seedlings may be delayed from being released from the planting nails, so that the seedlings may not be properly planted in the field. Further, for example, when the root portion of the seedling is loose due to softness or the like, even if the seedling (root portion) does not fall from the planting nail and reaches the field and is planted, the root portion of the seedling is loosened in the field after planting. Therefore, if the above-described seedlings that tend to have loose roots are planted in a soft field with a lot of water, the roots of the seedlings may fall apart in the field and the seedlings may fall easily. An object of the present invention is to provide a seedling guide structure of a rice transplanter so that seedlings can be normally planted in a field by planting claws regardless of the state of the root of the seedling.

[0006]

A feature of the present invention resides in the following structure in a seedling guide structure of a rice transplanter. A seedling rest on which the seedlings are placed, an outlet for the seedling formed at the lower part of the seedling stand, and a planting claw for taking out the seedling through the outlet and planting it in the field are provided. A pair of left and right seedling guides extending downward along the passage trajectory is provided, and on the side opposite to the planting claws in the left and right seedling guides, is separated by a predetermined distance from the end opposite to the planting claws in the left and right seedling guides By being erected across the right and left seedling guides,
It has a connecting member that can set and change the interval between the left and right seedling guides.

[0007]

According to the first aspect of the present invention, the distance between the left and right seedling guides can be changed by the connecting member. Thereby, for example, if the roots of the seedlings are brittle due to sandy floor soil, etc., for example, if the interval between the left and right seedling guides is widened, the seedlings taken out by the planting claws reach the lower field and are planted until they are planted. As the resistance from the seedling guide to the root of the seedling decreases, the resistance received from the seedling guide collapses the root of the seedling,
There is no such thing as a seedling (root) falling from the planting nail. Also, for example, if the roots of the seedlings are sticky due to clay flooring, etc., for example, if the interval between the left and right seedling guides is widened, the resistance applied to the roots of the seedlings from the seedling guides will be reduced in the same manner as described above. There is no possibility that the root portion of the seedling bites into the planting nail due to the resistance received, and the root portion of the seedling is hardly separated from the planting nail.

Conversely, for example, when the roots of the seedlings are hard and easily fall from the planting nails, for example, if the interval between the left and right seedling guides is reduced, the resistance from the seedling guides will be sufficiently applied to the roots of the seedlings. By the nail and the left and right seedling guides, the seedling taken out by the planting nail is held by the planting nail without falling until it reaches the field below and planted in the field. Also, for example, when the root portion of the seedling is likely to be loose due to soft root portion of the seedling, for example, if the interval between the left and right seedling guides is reduced, the root portion of the seedling is relatively strongly pressed by the seedling guide. The roots of the seedlings taken out by the claws are pressed and compacted by the seedling guides, thereby preventing a state in which the roots of the seedlings fall apart in the field after planting.

[II] In a pair of left and right seedling guides as in the feature of claim 1,
When the distance between the left and right seedling guides is changed, a connecting member as in claim 1 is laid across the left and right seedling guides, and the distance between the left and right seedling guides is set and changed by this connecting member. Is considered as a simple structure.

In this case, when the planting nails take out the seedlings from the outlet, the planting nails and the seedlings (roots) pass between the left and right seedling guides and reach the field. The connecting member is located on the side opposite to the planting claws in the left and right seedling guides, and the connecting member is further away from the end opposite to the planting claws in the left and right seedling guides by a predetermined distance. It is configured as follows. Therefore, the planting claws and the seedlings (roots) pass between the left and right seedling guides and reach the field without contacting the connecting member.

[0011]

According to the first aspect of the present invention, in the seedling guide structure of the rice transplanter, by changing the interval between the left and right seedling guides, the root portion of the seedling (hard and soft, sticky and brittle, etc.) can be reduced. Irrespective of this, the seedlings can be normally planted in the field without dropping by the planting claws, and the state that the roots of the seedlings fall apart in the field after planting and the seedlings fall down can be prevented. Planting performance could be improved. When the connecting member for setting and changing the interval between the left and right seedling guides is provided as in the first aspect, the planting claws and the seedlings (roots) do not contact the connecting member so that there is no obstacle between the left and right seedling guides. Since the seedlings pass through and reach the field, and the seedlings are planted, planting defects such as planting nails and seedlings (roots) coming into contact with the connecting members and falling from the planting nails do not occur.

[0012]

1 shows a riding type rice transplanter to which the present invention is applied. In this rice transplanter, a seedling planting device 4 is connected to a rear part of a four-wheel drive type riding traveling body 1 via a four-link mechanism 3 driven by a hydraulic cylinder 2 so as to be able to move up and down. It has a structure in which the fertilizer application device 5 is mounted.

A plurality of seedlings for seedlings are placed on the seedling planting device 4, and the seedling rest 6 is reciprocated and moved at a constant stroke. A plurality of rotating seedling planting mechanisms 7, a float 8 for leveling a field scene, a pair of left and right drawing markers 9 for forming a running reference line in a field scene of the next step, and the like are provided.

As shown in FIG. 2, the lower end of the seedling rest 6 is guided and supported by a sliding rail 11 fixed to the planting and transmission case 10, and as shown in FIG. The pair of left and right support frames 13 erected from the left and right ends of a rectangular pipe-shaped main frame 12 that supports the front part of the planting transmission case 10 is slidably engaged and supported left and right. .

As shown in FIG. 2 and FIG.
1 shows a planting claw 7a of the seedling planting mechanism 7 in each planting line.
Is formed with a notch, through which the outlet 1 passes.
A take-out guide 15 is attached to 4, and a pair of left and right seedling guides 16 for guiding the roots of the seedlings taken out by the planting claws 7 a from left and right are attached below the take-out guide 15. The seedling guide 16 is made of a resin material, and as shown in FIG.
5 is inserted into the mounting groove 15a formed through the guide protrusion 16a.

The outer surface of the seedling guide 16 is provided with a pair of upper and lower tapered stepped projections 16b and 16c. The projections 16b and 16c are U-shaped to regulate the distance between the left and right seedling guides 16. It is used to bridge the connecting member 17. In the case where the connecting member 17 is laid across the right and left seedling guides 16, for example, as shown in FIG.
And at a predetermined distance from an end 16d of the left and right seedling guides 16 opposite to the planting claws 7a. As shown in FIG. 4A, the right and left seedling guides 16 are press-fitted from the tips of the upper left and right projections 16b.
When the connecting member 17 is installed over the
6 is set to be narrow, and the left and right seedling guides 16 are set to be narrower and elastically expandable, so that the function of compacting the roots of the seedlings from the left and right is sufficiently exhibited.

As shown in FIG. 4 (b), when the connecting member 17 is laid across the lower left and right projections 16c, the distance between the left and right seedling guides 16 is set to be slightly wider, and the left and right seedling guides 16 are set. Is slightly narrowed downward and is not elastically expanded. As shown in FIG. 5 and FIG.
The connection member 17 may be press-fitted from the side to the constricted portions of 6b and 16c. 5 and 6
In the same manner, the connecting member 17 is located on the opposite side of the right and left seedling guides 16 from the planting claws 7a, and a predetermined distance from the end 16d of the left and right seedling guides 16 opposite to the planting claws 7a. Just away.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is an overall side view of a riding type rice transplanter.

FIG. 2 is a side view of the vicinity of a slide rail outlet and a seedling guide.

FIG. 3 is a perspective view of the vicinity of an outlet of a sliding rail and a seedling guide.

FIG. 4 is a rear view of the vicinity of the seedling guide.

FIG. 5 is a side view showing another embodiment of the seedling guide and the connecting member.

FIG. 6 is a rear view showing another embodiment of the seedling guide and the connecting member.

[Explanation of symbols]

6 Seedling stand 7a Planting claw 14 Extraction port 16 Seedling guide 16d Ends of left and right seedling guides opposite to planting claw 17 Connecting member

Claims (1)

(57) [Claims] 1. A seedling rest (6) on which seedlings are placed, and a seedling outlet (14) formed below the seedling rest (6).
And a planting claw (7a) through which the seedling is taken out through the outlet (14) and planted in the field, and extends downward along the passage locus of the planting nail (7a) from the outlet (14). A pair of left and right seedling guides (1
6), the planting claws (7) in the left and right seedling guides (16).
On the opposite side to a), the left and right seedling guides (16)
At the end (16) opposite to the planting nail (7a).
By connecting the right and left seedling guides (16) to the connecting member (17), the distance between the left and right seedling guides (16) can be set and changed by being laid across the right and left seedling guides (16) so as to be located at a predetermined distance from d). ) Equipped with a rice seedling guide structure.