JPH0233636Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention moves the soil gathering tool up and down in conjunction with the planting operation of the planting nails that circulate up and down, thereby removing mud with the planting nails. The present invention relates to a rice transplanter configured to backfill grooves formed in the surface to prevent planted seedlings from lodging due to the muddy surface grooves.

[Conventional technology]

In the above-mentioned rice transplanter, conventionally, the range in which the earth-harvesting tool moves back and forth up and down with respect to the mud is constant.

[Problem that the invention attempts to solve]

With conventional machines, when the mud is relatively soft, the mulch tool penetrates deep into the mud and activates the mulch even though the mud is easy to flow, and a large amount of mud is swept away over a wide area, pushing down surrounding already planted seedlings. In addition, when the mud is relatively hard, the depth of the mulch tool's penetration into the mud is shallow, even though the mud is difficult to move.
The amount of mud forced into the grooves formed by the planting claws was insufficient, and the lodging of planted seedlings caused by the mud grooves could not be sufficiently prevented.

The purpose of the present invention is to enable adjustment of the amount of mud being pushed.

[Means for solving problems]

The feature of the present invention is that the above-mentioned rice transplanter is equipped with an adjustment part that changes the reciprocating range of the soil reciprocating tool against mud up and down, and its functions and effects are as follows. be.

[Effect]

The smaller the range of the up-and-down reciprocating movement of the mulch tool against mud, the shallower the depth of the mulch penetration of the mulch tool, and the less the amount of mud pressed and moved by the mulch tool. The larger the range, the deeper the mud penetration depth of the mulch tool becomes, and the larger the amount of mud that is pressed and moved by the mulch tool.

[Effect of idea]

Therefore, if the mud is soft, the mud will flow into the grooves formed by the planting nails by natural flow, and a small amount of mud will be delivered to the earth-filling tool to compensate for the lack of backfill due to the natural inflow of mud. If the mud is hard, it is difficult for the mud to get into the groove formed by the planting nails due to natural flow. In order to ensure that the mud groove is sufficiently filled with the earth-filling tool, the amount of mud pressed and moved by the earth-harvesting tool is adjusted so that a large amount of mud is pressed and moved, and regardless of the quality of the mud, the dirt caused by the mud-surface groove is removed. It has become possible to work while extremely well preventing the lodging of planted seedlings caused by the lodging of planted seedlings caused by the muddy soil being pushed and moved by the soil gathering tool.

〔Example〕

As shown in FIGS. 1 and 2, a driving unit 2 and a central ground leveling float 3 are disposed at the front of a pair of left and right running wheels 1, 1, and at the rear of the running wheels 1, 1. The seedling tray 4 has a rearwardly tilted seedling tray 4 that can be moved laterally by reciprocating drive, and the seedling tray 4 is rotated up and down in conjunction with the lateral movement of the seedling tray 4.
A four-row planting device 6 having a group of claws 5 for taking out the upper seedlings in unit quantities and planting them on the mud surface a is positioned in front of the seedling platform 4. A walking rice transplanter is constructed by disposing a control handle 7 extending rearward and soil leveling floats 8, 8 on both sides.

A mechanism 9 is provided at the rear of the machine body, which operates in conjunction with the planting operation of the planting claws 5 and backfills the grooves b... formed in the mud surface a by the planting claws 5.

As shown in FIGS. 3 to 5, the backfilling mechanism 9 has a horizontal axis located slightly rearward of the lower part of the crankshaft 10 that collectively drives the planting claws 5... A pair of left and right earth gathering tools 11, 11 that plunge into the mud surface a and press the mud on both sides of the groove b toward the groove b side by swinging downward around X.
A plurality of sets are provided corresponding to each of the planting nails 5..., and they are attached to a shaft 12 that supports the soil gathering tools 11, 11... so as to collectively swing them up and down, and to the nail drive crankshaft 10. Each time the pawl driving crankshaft 10 rotates once through a cam 13, that is, each time the planting pawl 5... operates one cycle, the shaft 12 is reciprocated by a linking rod 14. There is.

Mud pressing surface 11 of the earth gathering tools 11, 11...
A, 11A... are designed to press the mud to the front and side when the earth mopping tools 11, 11... are lowered.
It is formed into an inclined surface that is located more inwardly toward the rear and more inwardly toward the top.

In the backfilling mechanism 9, the pawl driving crankshaft 10 is configured such that the posture of the cam 13 around the crankshaft center relative to the pawl driving crankshaft 10 can be changed and fixed.
At the same time, the earth gathering tools 11, 11...
... are attached to the shaft 12 so that the horizontal posture around the axis X and the position in the axial direction can be changed and fixed with respect to the shaft 12.

That is, by changing the posture of the cam 13 around the nail drive crankshaft, the start timing of the backfilling operation relative to the circulation operation of the planting nails 5 is adjusted.

Then, by changing the mounting posture of the mulching tools 11, 11, . death,
The adjustment section is configured to change the amount of mud pushed toward the groove b...side.

Then, by changing the position of the earth-filling tools 11, 11... in the axial direction, the earth-filling tool 1 relative to the groove b...
The operating positions of 1, 11... in the lateral direction are adjusted.

The shaft 12 is supported by a stay 17 that projects rearward from a pivot bracket 16 of a swing link 15 that regulates the posture of the planting nail 5.

[Brief explanation of the drawing]

The drawings show an embodiment of the rice transplanter according to the present invention. Figure 1 is an overall side view of the walk-behind rice transplanter, Figure 2 is an overall plan view of the walk-behind rice transplanter, and Figures 3 to 5 are soil gathering tools. FIG. 6 is an enlarged longitudinal cross-sectional rear view of the mulch, and FIG. 7 is an enlarged cross-sectional plan view of the mulch. 5... Planting nails, 11... Soil gathering tool, a... Mud surface, b... Groove.

Claims (1)

[Scope of utility model registration request] By reciprocating the soil gathering tool 11 up and down in conjunction with the planting operation of the planting nails 5 which circulate up and down, the grooves b formed in the mud surface a are backfilled with the planting nails 5. This rice transplanter is equipped with an adjustment section that changes the reciprocating range of the soil gathering tool 11 up and down against mud.