JPS646019Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a rice transplanter configured to support a seedling planting device for planting four rows by a central float and left and right floats arranged in the left and right direction. , suppresses the situation where already planted seedlings are pushed over or their posture disturbed due to mud being pushed out as the float slides on muddy surfaces, as well as the flow of mud between adjacent floats due to the float sliding that has a negative impact on the seedlings that are to be planted in the future. The purpose is to make it possible.

Next, embodiments of the present invention will be described based on illustrative drawings.

A 4-row seedling planting device 3 is connected to the rear of the traveling body 1 via a parallel quadruple link mechanism 2, and a central float 4 is provided to support the seedling planting device 3 on the mud surface.
A riding type rice transplanter is constructed by arranging left and right floats 5, 5 side by side in the left and right direction.

In the seedling planting device 3, clutch mechanisms 7, 7 are provided for separately driving and disconnecting the seedling planting claws 6, 6 on the left and right two rows, and the clutch mechanisms 7, 7 are selectively operated by the levers 8, 8. Seedling claws 6, 6 that reversibly stop the drive in conjunction with
A cover 10 that closes the seedling outlet 9 corresponding to the seedling outlet 9,
10, it is possible to selectively plant seedlings in two rows if necessary, and the seedlings that are not taken out can be placed on the sliding plate 1 of the seedling stand 11.
When moving from side to side on 2, the lower end surface of the seedling gets caught in the seedling take-out ports 9, thereby preventing landslides and seedling breakage.

Furthermore, a seedling stay 13 for preventing the placed seedlings from floating up from the seedling stand 11 is attached to the seedling holding portion a...
The seedling stay 13 is provided in a plate-like structure that protrudes intermittently in the longitudinal direction, so that the entire length of the seedling stay 13 can be held against the soiled seedlings even when the bed thickness of the soiled seedlings changes in the vertical direction of seedling feeding. If the seedling stay 13 is constructed by bending a round bar, the seedling leaves will be pulled to the bent part of the round bar. This causes the seedlings to break, but this situation can be resolved by using a plate-like structure.

Note that the seedling extraction port cover 10 may be configured to be manually operated.

A center float 4 that also serves as a center float that detects the ground level of the seedling planting device 3 and automatically maintains the seedling planting device 3 in a set posture in conjunction with it, on the rear side and in the width direction thereof. Seedling planting recesses A, A are formed on both sides to allow the two seedling planting claws 6, 6 on the center side to perform seedling planting operations on the mud surface, and are open toward the rear and laterally outward. , the left and right floats 5,
On the rear side of 5 and in the center of the width direction, 2 on both left and right sides.
Seedling planting recesses B, which allow the seedling planting claws 6, 6 of the rows to plant seedlings on the mud surface, are cut out to open rearward, and the outer ends of the left and right floats 5, 5 are cut out. The narrow part dimension l of the adjacent floats 4 and 5 is made as large as possible while keeping the floats as far away as possible from the already planted seedlings.

That is, conventionally, as shown in FIG. 5, the central float 4 is constructed in the same manner as the structure according to the present invention, and the left and right floats 5 are provided with recesses B for planting seedlings that are open laterally outwardly and rearwardly. However, the dimension l between adjacent floats 4 and 5 becomes small, and
As the floats 4 and 5 slide, the flow speed of mud between the floats increases, which may have a negative effect on the two central rows of seedlings that are to be planted, or the structure shown in Figure 6, that is, the left and right floats 5, 5, in which a recess B for planting seedlings is formed that opens laterally and rearward on the side of the central float 4, the dimension l ₁ from the immediate seedling to the outer edge of the float 5 is smaller. This has the disadvantage that the mud that is pushed out as the float 5 slides may push down the planted seedlings or disturb their posture.

However, as in the present invention, the left and right floats 5,
5, by providing a recess B that opens at the rear in the center of the width direction, the dimension l ₁ from the planted seedlings to the outer edge of the float is provided with the same mud surface support area as the conventional structure. In addition, the dimensions l between the adjacent floats 4 and 5 can be configured to be as large as possible,
Negative effects on already planted seedlings and seedlings to be planted in the future can be effectively suppressed.

Note that it is also possible to implement the present invention in a walking rice transplanter.

Alternatively, a structure may be constructed in which the left and right floats 5, 5 have float portions extending laterally outwardly so that seedlings can be planted at the rear thereof, and a six-row seedling planting device 3 is provided.

In summary, the present invention provides the above-described rice transplanter with a seedling planting recess B that opens at the rear on the rear sides of the left and right floats 5 and at the center in the width direction, and on the rear side of the center float 4. It is characterized by having recesses A, A for planting seedlings that are large and open on both sides in the width direction and open at the rear and laterally outward sides.

That is, when configured as described above, as detailed in the embodiment, the dimension 1 between the adjacent floats 4 and 5, and the , the dimensions l ₁ between the outer ends of the left and right floats 4 and the planted seedlings can both be configured to be large, thereby preventing the planted seedlings from being pushed down or disturbed by mud being pushed out, or the distance between the floats 4 and 5. By simply modifying the float structure, it is possible to suppress the negative effects of the flowing mud on the seedlings that are about to be planted.
We are now able to successfully plant seedlings.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the rice transplanter according to the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a plan view of the seedling planting device, Fig. 3 is a vertical side view thereof, and Fig. 4 is a float. 5 and 6 are plan views of float shapes for comparison with the present invention. 3...Seedling planting device, 4...Central float, 5...
...Left and right floats, A, B...Recesses for planting seedlings.

Claims (1)

[Scope of Claim for Utility Model Registration] A rice transplanter configured to support 3 parts of a seedling planting device for planting 4 rows by a central float 4 and left and right floats 5, 5 arranged in the left and right direction, wherein the left and right floats 5, A recess B for planting seedlings is provided on the rear side of the central float 4 and at the center in the width direction, and a recess B for planting seedlings is opened at the rear side of the central float 4 and on both sides in the width direction, as well as at the lateral side. A rice transplanter characterized by having recesses A and A.