JPH0233634Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention moves a pair of left and right soil gathering tools up and down in conjunction with the planting operation of the planting nails, which circulates up and down. The present invention relates to a rice transplanter configured to backfill grooves formed in the mud surface to prevent planted seedlings from falling over due to the mud surface grooves.

[Conventional technology]

In the above-mentioned rice transplanter, conventionally, the distance between the pair of right and left soil gathering tools has been constant.

[Problem that the invention attempts to solve]

In conventional machines, when the muddy soil is relatively soft, the soil gathering tool acts very close to the planted seedlings even though the muddy soil is easy to move, and the muddy soil is suddenly pushed toward the planted seedlings, causing the planted seedlings to be damaged. However, if the mud is relatively hard, the soil mulching tool may act far away from the planted seedlings even though the mud is difficult to move, causing the mud to tilt. There were cases in which the planted seedlings were not sufficiently prevented from lodging because the soil did not penetrate into the mud grooves sufficiently, resulting in insufficient trench filling. In addition, when the amount of seedlings taken out in the width direction of the seedlings is adjusted to a large value, the spacing between the earth-harvesting tools is narrow despite the fact that the width of the planted seedlings in the lateral direction of the machine is large, and the earth-harvesting tools that operate downward do not catch the planted seedlings. Contact may cause the posture of the planted seedlings to be disturbed.Also, when the amount of seedlings taken out is adjusted to a small value, the spacing between the soil mowers is wide even though the width of the planted seedlings is small, and the soil mowers may not be properly planted. Because the mud acts far away from the seedlings and does not get close enough to the planted seedlings, the planted seedlings sometimes fall over.

The purpose of the present invention is to enable changing and adjusting the spacing of the mulch.

[Means for solving problems]

The feature of the present invention is that, in the above-mentioned rice transplanter, the soil gathering tool is installed so that its position can be changed in the direction in which the distance between the tools changes.
Its action and effects are as follows.

[Effect]

By changing the mounting position of the mulching tool, the distance between the mulching tools changes.

[Effect of idea]

The spacing between the soil tools can be adjusted according to the quality of the mud and the size of the seedlings to be planted.In other words, even if the mud is soft, it will flow slowly toward the planted seedlings, and even if the mud is hard, it will be easy to plant. Make sure to get close to the seedlings.
Alternatively, even if the width of the seedlings to be taken out is large, it can be adjusted so that the soil gathering tool and the seedlings do not come into contact with each other, and even if the width of the seedlings to be taken out is small, the mud can be adjusted to ensure that the planted seedlings are covered with mud. Regardless of conditions such as the quality and size of the planted seedlings, it is now possible to work with high precision without causing the planted seedlings to fall over or become disturbed in their posture.

〔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, 1 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 of 1 are provided, one set corresponding to each planting nail 5...
1..., and a cam 13 attached to the claw drive crankshaft 10, the claw drive crankshaft 10 rotates once every time, that is, the planting claws 5 . . . is provided with an interlocking rod 14 that swings the shaft 12 back and forth once every time the shaft 12 is operated one cycle.

As shown in FIG. 6 and FIG. 7, the mud pressing surfaces 11A, 11A... of the earth gathering tools 11, 11...
is formed into an inclined surface that is located inward toward the rear and inward toward the top so as to press the mud toward the front and the sides when the earth gathering tools 11, 11, . . . are lowered.

In the backfilling mechanism 9, the position 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 soil 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 relative to the shaft 12 can be changed and fixed.

In other words, 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 posture around the axis of the mulch tools 11, 11..., the vertical reciprocating swing range of the mulch tools 11, 11..., that is, the amount of mud pushed toward the groove b... side, is adjusted. be.

Then, by changing the position of the mulching tools 11, 11, .
1 and the interval between the planting claws 5 and the soil gathering tool 11 in the lateral direction of the machine body, and the spacing between the pair of left and right soil gathering tools 11, 11 is adjusted. There is.

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 mulching tool, and FIG. 7 is an enlarged cross-sectional view of the mulching tool. 5... Planting nails, 11... Soil gathering tool, a... Mud surface, b... Groove.

Claims (1)

[Scope of utility model registration request] In conjunction with the planting operation of the planting claws 5, which circulate in the vertical direction, the pair of left and right soil gathering tools 11, 11 are moved vertically and back, so that the planting claws 5 fill the grooves b formed in the mud surface a. This rice transplanter is configured to be returned to its original position, and the rice transplanter 11 is installed so that its position can be changed in the direction in which the spacing between the soil shifting tools changes.