JP3290959B2 - 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 rest, 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 along the passage of the planting nails from the outlet 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-shaped seedlings used as seedlings for planting. The mat-shaped seedlings are germinated by sowing seeds on the floor soil in a state in which the floor soil is laid 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 of the seedling is loose due to softness or the like, the root of the seedling is loosened in the field after planting, even if the seedling (root) reaches the field without falling from the planting nail and is planted. Therefore, if the above-described seedlings that tend to have loose roots are planted in a soft field with a large amount of water, the roots of the seedlings may fall apart in the field and the seedlings may easily fall. SUMMARY OF THE INVENTION It is an object of the present invention to provide a seedling guide structure of a rice planting machine so that a seedling can be normally planted in a field by a planting claw irrespective of a root state 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, an engaging portion provided at a plurality of upper and lower locations of each of the left and right seedling guides, and a connecting member for setting an interval between the left and right seedling guides By connecting the connecting member to an appropriate one of the plurality of engaging portions of the left and right seedling guides and laying the connecting member over the left and right seedling guides, the distance between the left and right seedling guides can be reduced. The connection member can be set and changed freely, and the connection member can be detached from the engagement portion.

[0007]

According to the first aspect of the present invention, the distance between the left and right seedling guides can be set and set by engaging the connecting member with the engaging portions of the left and right seedling guides and bridging the right and left seedling guides. Can be changed. 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. Since the resistance applied from the seedling guide to the root portion of the seedling is reduced, the root portion of the seedling is not collapsed by the resistance received from the seedling guide, and the seedling (root portion) does not fall 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 off the planting nails, for example, if the distance 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 nail and right and left seedling guide,
Until the seedlings taken out by the planting nail reach the field below, they are held by the planting nail without falling 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 nails are pressed and solidified by the seedling guide, and the state in which the roots of the seedlings fall apart in the field after planting is prevented.

[II] According to the feature of the first aspect, by engaging the connecting member with the engaging portions of the left and right seedling guides, the connecting member can be bridged over the left and right seedling guides. This allows the connecting member to be pressed into engagement with the engaging portions of the left and right seedling guides without engaging in a complicated operation of tightening the bolts and nuts, thereby allowing the connecting member to be brought into contact with the left and right seedling guides. The connecting member can be easily detached from the engaging portions of the left and right seedling guides by separating the connecting members from the engaging portions of the left and right seedling guides.

[III] According to the feature of the first aspect, the engaging portions are provided at a plurality of upper and lower portions of each of the left and right seedling guides, and among the plurality of engaging portions in the left and right seedling guides, it seems appropriate. The interval between the left and right seedling guides is set by engaging the connecting member with the engaging portion to be engaged. As described above, according to the first aspect of the present invention, if the connecting member is prepared, it is possible to set and change the interval between the left and right seedling guides. There is no need to replace the 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 falling by the planting claws, and it is possible to prevent a state in which the roots of the seedlings fall apart in the field after planting and the seedlings fall, and Planting performance could be improved. According to the features of claim 1, by engaging the left and right seedling guides with the engaging portions, the connecting member can be easily laid across the left and right seedling guides without performing complicated operations,
Since it can be removed, the workability of attaching and detaching the connecting member is improved.

According to the first aspect of the present invention, the engaging portions are provided at a plurality of upper and lower portions of each of the left and right seedling guides, and are connected to an appropriate one of the plurality of engaging portions of the left and right seedling guides. By engaging the members to set and change the interval between the left and right seedling guides,
When the distance between the left and right seedling guides is changed, it is not necessary to replace the connection member with another connection member, so that the connection member is less likely to be lost.

[0013]

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 are placed on the seedling planting device 4, and the seedling rest 6 is reciprocally moved sideways with a constant stroke. The seedlings are taken out from the lower end of the seedling rest 6 one plant at a time and planted. A rotary seedling planting mechanism 7 for a plurality of rows, 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 for 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 slide rail 11 fixed to the planting and transmission case 10, and as shown in FIG. A pair of left and right support frames 13 erected from the left and right ends of a square pipe-shaped main frame 12 that supports the front portion of the planting transmission case 10 is engaged and supported slidably 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.

On each of the outer surfaces of the left and right seedling guides 16, a pair of upper and lower tapered protrusions 16b, 1 are formed.
6c are provided, and the projections 16b and 16c are used to bridge a U-shaped connecting member 17 that regulates the interval between the left and right seedling guides 16. As shown in FIG. 4 (a), the connecting members 1 are connected from the tips of the upper left and right projections 16b.
When the connecting member 17 is laid across the left and right seedling guides 16 by press-fitting and engaging the 7, the interval between the left and right seedling guides 16 is set to be narrow, and the left and right seedling guides 16 are narrowed downward and elastic. The roots of the seedlings are firmly pressed from the left and right, so that the function of the seedlings is sufficiently exhibited.

As shown in FIG. 4B, the connecting members 17 are press-fitted from the tips of the lower left and right projections 16c and engaged with each other.
When the connecting member 17 is laid across the left and right seedling guides 16, the distance between the left and right seedling guides 16 is set to be slightly wider, so that the left and right seedling guides 16 are slightly narrowed and do not elastically expand. Fixed. As shown in FIGS. 5 and 6, the constrictions of the left and right projections 16b and 16c are placed from the side.
The embodiment may be implemented in a form in which the connecting member 17 is press-fitted and engaged.

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 rice transplanter.

FIG. 2 is a side view of the vicinity of an outlet of a sliding rail 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 Nursery stand 7a Planting claw 14 Extraction port 16 Seedling guide 16b, 16c Engagement part 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), provided at a plurality of upper and lower locations of each of the left and right seedling guides (16).
The obtained engaging portions (16b) and (16c) and the left and right
A connecting member (17) for setting an interval between the seedling guides (16);
And a plurality of engaging portions (1) in the left and right seedling guides (16).
6b) and (16c), the connecting portion
The member (17) is engaged, and the connecting member (17) is
By erection over right seedling guide (16),
The interval between the left and right seedling guides (16) can be set and changed freely,
And, the connecting member (17) is connected to the engaging portion (16b),
A seedling guide structure of a rice transplanter, which is configured to be detachable from (16c) .