JPH0233638Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention uses a seedling planting tool that is F-shaped when viewed from the side, with the planting claw side facing toward the rear of the aircraft body, and the planting claws are rotated up and down. By providing a pair of backfilling tools in a state where they are driven to swing up and down as shown in FIG. The present invention relates to a rice transplanter configured to backfill grooves formed in the mud surface with the planting claws to prevent planted seedlings from lodging due to the mud surface grooves.

[Conventional technology]

In the rice transplanter mentioned above, conventionally, the support shaft of the backfilling tool is placed as close as possible to the seedling planting site in the longitudinal direction of the machine body, and at a position as high as possible, and the tip of the backfilling tool that operates for backfilling The side of the backfilling tool should be moved as much as possible along the front and back direction of the aircraft to perform soil collection efficiently, and the tip side of the backfilling tool should be moved in a direction that is away from the planting seedlings to the rear regardless of the aircraft movement. It rises in the direction along the culm direction of the seedling, and presses it forward against the leaves coming out of the stem, as in the case where it rises in a direction inclined to the culm direction from the rear side to the front side of the planted seedling. In order to prevent the planted seedlings from tilting or lodging, for example, the method disclosed in Japanese Patent Publication No. 8811/1973 has been used. That is, the backfilling tool support shaft was arranged near the rear side of the operating trajectory of the planting nail.

[Problem that the invention attempts to solve]

In the case of conventional machines, the support shaft of the backfilling tool is designed to avoid contact with the seedling planting tool or planting claw, and
One for the left backfilling tool to prevent it from coming into contact with the planted seedlings that move relatively backwards due to the aircraft movement.
Two systems are required, one for the right-side backfill tool, and as a result, not only are multiple support shafts required, but the backfill tool also requires two drive systems, one for the left side and one for the right side. This made it more complicated and disadvantageous in terms of cost.

The purpose of the present invention is to provide a backfilling structure that is efficient in burying soil and is less likely to cause disturbance in the posture of planted seedlings, which is advantageous in terms of both structure and cost.

[Means for solving problems]

The present invention is characterized in that, in the above-mentioned rice transplanter, both of the backfilling tools are attached to one driving rotating support shaft, and the support shaft is located behind the crankshaft for driving the seedling planting claw, and The reason is that the inner edge of the curved part of the seedling planting tool in the lowest position is located close to it, and its functions and effects are as follows.

[Effect]

By arranging the support shaft at the above location, even if this support shaft is a single shaft common to both the left and right backfilling tools, it is possible to prevent it from coming into contact with the seedling planting tool, planting claw, or seedlings, and to keep the support shaft at the planting location. The spindle can be arranged so as to be located as close as possible in the longitudinal direction of the aircraft and at a position as high as possible.

[Effect of idea]

Therefore, the tip side of the backfilling tool should move as much as possible along the longitudinal direction of the aircraft to fill the soil, and at the same time, it should be moved upward in a direction that is away from the planted seedlings or in a direction that is along the culm of the planted seedlings. In this way, backfilling is carried out efficiently, and while the posture of the planted seedlings is prevented as much as possible, the driving rotation shaft and drive system for both the left and right backfilling tools can be made into one common shaft or one system. , the structure has become easy and inexpensive to obtain.

〔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.

To configure the planting device 6, as shown in FIGS. 3 to 5, each of the four seedling planting tools 18, which are F-shaped in side view, is placed in such a state that the planting claw 5 side faces toward the rear of the machine. The planting claws 5 are mounted on the machine body through the crankshaft 10 and the swing link 15 so as to be driven to swing up and down so that the planting claws 5 are circulated up and down.

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.

In configuring the backfilling mechanism 9, as shown in FIGS. 2 to 6, the planting claws 5... are located slightly rearward of the lower part of the crankshaft 10 that collectively drives the group. A plurality of pairs of left and right backfill tools 11, 11, which plunge into the mud surface a and press the mud on both sides of the trench b toward the trench b side by swinging downward around the horizontal axis X, are attached to each planting claw. 5..., and a pair of backfilling tools 11, 11 in each set are provided in a state dispersed on both the left and right sides of the planting nail 5, and the backfilling tools 11, 11... are provided at once. One body horizontal support shaft 12 that is supported so as to swing up and down is provided behind the crankshaft 10,
In addition, the seedling planting tool 18 is provided at a position close to the inner edge 19 of the curved portion of each of the seedling planting tools 18 in the lowest state, and the claw driving crankshaft 10 is rotated every time through a cam 13 attached to the crankshaft 10. In other words, an interlocking rod 14 is provided that swings the shaft 12 back and forth once every time the planting nails 5 operate one cycle.

In addition, the backfilling mechanism 9 basically operates in conjunction with the planting device 6 in order to start the backfilling operation after the planting nails 5 reach the bottom dead center C of entering the soil. Furthermore, the cam 13 is mounted on the pawl driving crankshaft 10 so that its posture around the crankshaft center with respect to the pawl driving crankshaft 10 can be changed and fixed, and the backfilling tools 11, 11...
is attached to the shaft 12 so that its posture around the horizontal axis X and its position in the axial direction can be changed and fixed with respect to the shaft 12, and by changing the posture of the cam 13 around the pawl driving crank shaft, the planting pawl 5... The backfilling operation start timing is adjusted with respect to the circulation operation of the backfilling tool 1.
By changing the posture around the axis of the backfilling tools 11, 11..., the amount of plunge of the backfilling tools 11, 11... into the mud surface, that is, the amount of mud pushed toward the groove b... side, is adjusted. By changing the axis position of 11, 11..., groove b...
It is configured to adjust the working position of the backfilling tools 11, 11, . . . in the lateral direction.

The shaft 12 is connected to a stay 17 that projects rearward from the pivot bracket 16 of the swing link 15.
It is supported by...

[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 walking rice transplanter, Figure 2 is an overall plan view of the walking rice transplanter, and Figures 3 to 5 are backfilling. FIG. 6 is a side view of the tool placement part and a rear view showing the action of the backfilling tool. 5... Planted nail, 10... Crankshaft, 11...
...backfilling tool, 12...support shaft, 18...seedling planting tool, 19...inner edge, a...mud surface, b...groove.

Claims (1)

[Scope of utility model registration request] The seedling planting tool 18, which is F-shaped in side view, is placed in a state where the planting claw side faces toward the rear of the aircraft, and the planting claw 5 is
A pair of backfilling tools 11, 11 are distributed and arranged on both the left and right sides of the planting nail 5, and are interlocked with the planting operation of the planting nail 5. The rice transplanter is configured to backfill the groove b formed in the mud surface a with the planting claws 5 by reciprocating up and down with the planting claws 5, and the rice transplanter includes one backfilling tool 11, 11. At the same time, the support shaft 12 is installed at a location behind the seedling planting claw driving crankshaft 10 and close to the inner edge 19 of the curved part of the seedling planting tool 18 in the lowest position. A rice transplanter in place.