JPS643324Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention has a soil gathering tool in which a plurality of seedling planting claws that circulate up and down are placed side by side behind the wheels, and that presses and moves muddy soil toward the planted seedlings as it descends. A rotary shaft is provided corresponding to each of the seedling planting claws, and drives and swings the soil collecting tool so that each of the soil collecting tools reciprocates up and down in conjunction with the seedling planting claw. This rice transplanter relates to a rice transplanter that is suspended horizontally near the ground behind the wheels while being linked to a seedling planting claw.

The above-mentioned rice transplanter is configured to fill the mud scraping holes formed behind the planted seedlings by the planting claws with mud pressed by the soil gathering tool in order to advance the rice transplanter. In addition, by driving multiple earth-harvesting tools with one rotating shaft, the rotating shaft can be driven by one rotating shaft without having to link each earth-harvesting tool to the seedling planting claw separately. It is configured to be able to drive multiple soil gathering tools with a simple drive system that only needs to be linked to the seedling planting claw, but the conventional rotating shaft is located close to the ground over its entire length. If the mud is relatively hard and the mound formed by the wheels does not quickly flow and sink after the wheels pass, the part of the rotating shaft located behind the wheel will come into contact with the mound, causing the vehicle to be unable to drive. There were disadvantages in that the resistance was large and the planted seedlings were easily pushed over by the muddy soil pushed and moved by the rotating shaft.

The purpose of the present invention is to modify the rotating shaft so that contact with the mound of mud formed by the wheels can be avoided as much as possible.

The characteristic configuration of the present invention is that, in the rice transplanter mentioned above, the part of the rotating shaft located behind the wheel is formed into a crankshaft shape so that it is always located at a higher level than other parts.

In other words, the part of the rotating shaft located behind the wheel,
It is formed in the shape of a crankshaft so that it is located at a higher level than other parts at any time when the earth mulling tool is lowered or in the raised position, so that the mound of mud formed by the wheels is removed. Even if some remains after the wheels have passed, the rotating shaft will not be able to come into contact with the mounded mud, resulting in increased running resistance and making it difficult to control the aircraft. Problems such as falling down are less likely to occur.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in Fig. 1, a self-propelled aircraft has a pair of left and right running wheels 1, 1, an engine 2, a control handle 3, etc., and one sensor that also serves as a ground sensor to keep the planting depth constant. A center float 4 and two side floats 5, 5 are installed, and four planting arms 6 are placed side by side in the lateral direction of the aircraft behind the wheels 1, and seedlings are placed on each of the planting arms 6. The planting claw 6a is drivably attached to the planting case 8 so that the planting claw 6a moves vertically to take out the seedlings from the seedling stand 7 and to plant the taken out seedlings.
It is constructed as a walk-behind rice transplanter capable of planting 4 rows.

To configure the center float 4, as shown in FIG. 2, ground leveling portions 4b are provided on both left and right sides of the float body 4a. Each of the ground leveling parts 4b,
The planting clutch 9 is configured to be able to swing around the axis P between an operating position protruding laterally outwardly from the float body 4a and a retracted position standing upright.
In conjunction with the cutting operation, both the ground leveling parts 4b, 4b
the planting clutch 9 so that it is in the retracted position.
In conjunction with the input operation, both ground leveling parts 4b, 4b
A spring 10 is provided to bias both the soil leveling parts 4b, 4b to the working position so that the soil leveling parts 4b, 4b are in the working position, and both the soil leveling parts 4b, 4b and the operating lever 11 of the planting clutch 9 are interlocked by a release wire 12 or the like. When connected and the machine turns, the soil leveling section 4b is automatically put into the retracted position by simply disengaging the planting clutch 9, thereby preventing mud from climbing onto the soil leveling section 4b and mud pushing by the soil leveling section 4b. There is. In addition, for this purpose, the ground leveling part 4b is configured to swing up and down around the horizontal axis on the front end side,
It may also be linked to the steering clutch.

As shown in Figures 3 and 4, planting case 8
One rotating shaft 14 is attached to the arm 13 extending from the
is placed horizontally behind the wheel 1 and positioned close to the ground, and eight soil gathering tools 15, two of which correspond to each of the seedling planting claws 6a, are attached to the rotating shaft 1.
4 extends from the rotating shaft 14 so as to be able to swing up and down, and to push the mud toward the planting seedling side as it moves downward, and each of the soil gathering tools 15 has a seedling planting claw. The rotary shaft 14 is configured to move vertically and reciprocate in conjunction with the seedling planting claw 6a, and to collect mud as the seedling planting claws 6a are planted.
The rotation link 1 for driving the planting arm is connected via the push/pull link 16, the rotation arm 17, and the sprocket 18.
A mud scraping hole is formed at the rear of the planted seedlings by the planting claw 6a due to the fact that the planting arm 6 is oriented backwards and the machine moves forward. is constructed so that it is buried by the mud pressed by the earth-filling tool 15.

As shown in FIGS. 3 to 5, the portion 14a of the rotary shaft 14 located behind the wheel 1 can be removed from other portions at any time when the mulch tool 15 is lowered or in the raised position. The wheel 1 is formed into a crankshaft shape so as to be located at a higher level than the wheel 14b.
The structure is such that it is difficult to come into contact with the mound of mud that remains after the wheels pass.

The present invention can also be applied to a riding rice transplanter or a multi-row planting type other than four-row rice transplanters.

[Brief explanation of the drawing]

The drawings show an embodiment of the rice transplanter according to the present invention, in which Fig. 1 is a side view of the walking rice transplanter, Fig. 2 is a perspective view of the center float, and Fig. 3 is a plan view of the seedling planting section.
FIG. 4 is a partially cutaway side view of the mulching tool installation section, and FIG. 5 is a rear view of the rotary shaft installation section. 1... Wheel, 6a... Seedling planting claw, 14... Rotating shaft, 14a... Rotating shaft wheel rear part, 14b...
Rotating shaft part, 15... Earth gathering tool.

Claims (1)

[Scope of utility model registration request] A plurality of seedling planting claws 6a that operate in a vertical circulation are arranged in parallel behind the wheel 1, and a soil gathering tool 15 that presses and moves muddy soil toward the planted seedlings as it descends is attached to each of the seedling planting claws 6a. A rotary shaft 14 for driving and swinging the soil gathering tool 15 is connected to the seedling planting tool 15 so that each of the soil gathering tools 15 moves up and down in conjunction with the seedling planting claw 6a. A rice transplanter horizontally suspended near the ground behind the wheel 1 in a state in which it is interlocked with an attached claw 6a, and a portion 14a of the rotating shaft 14 located behind the wheel 1.
The rice transplanter is characterized in that the part 14b is formed in the shape of a crankshaft so that the part 14b is always located at a higher level than the other part 14b.