JPH0243448B2 - - Google Patents

Description

Detailed Description of the Invention "Field of Industrial Application" The present invention has a pair of traveling floats arranged on both the left and right sides of the paddy wheels in the center of the machine body, and a backward-tilting seedling mount that can be moved back and forth from side to side at the rear of the machine body. This invention relates to a single-wheel rice transplanter equipped with a stand.

"Function" According to the present invention, the aircraft body is supported by the wheels and the left and right floats, so that the center of gravity of the aircraft is moved within a triangle connecting the supporting points of the wheels and the left and right floats. , The center of gravity of the machine is moved back to the rear position by the rolling reaction force of the wheels while running, and the seedling stand is reciprocated from side to side at this rear position to apply internal motion forces such as vibrations and shocks to the machine body. As a result of keeping the displacement of the machine's center of gravity within the range of the triangle connecting the wheels and the left and right floats under constantly occurring work conditions, it is possible to effectively maintain the stability of the machine, thereby improving workability and safety. The purpose is to provide a single-wheel type rice transplanter that can be improved.

"Example" Hereinafter, an example of the present invention will be described in detail based on the drawings.

Fig. 1 is an overall side view of a rice transplanter according to the present invention, and Fig. 2 is a plan view thereof, in which 1 is an engine, 2 is an engine base on which the engine 1 is mounted, and 3 is a rice transplanter connected to this base 2. transmission cases, 4, 4 are a pair of left and right transmission cases whose front sides are respectively fixed to the transmission cases 3; 5, 5 are planting claw drive cases installed on the rear sides of the transmission cases 4, 4;
6, 6 are steering handles whose base ends are fixed to the drive cases 5, 5, respectively; 7 is the handle 6;
6 is a backward-tilting seedling stand for four-row planting supported via brackets 8, 8, guide rails 9, support plates 10, 10, and seedling take-out plate 11; Planting claws attached to both ends to take out and plant one seedling from the seedling stand 7, 1
Reference numeral 3 indicates a planting transmission case which is fixed to the drive case 5 on the left side, and reference numeral 14 indicates a planting transmission case which is disposed between the engine 1 and the seedling stand 7 and in the center between the left and right transmission cases 4, and which is connected to the transmission case 3 on the left side. A single wheel for paddy fields is connected via a swing case 15, and 16 is a portal frame 1 that connects the drive cases 5, 5 from above.
swing adjustment levers 18 and 18 provided at 7, symmetrically arranged on the left and right sides of the wheels 14, and the front ends connected to the transmission cases 4, 4 via buffer links 19, 19, and the rear ends near the planting height adjustment links; A pair of running floats are supported by the handles 6, 6 via 20, 20, 21 is a bonnet that covers the upper area of the engine 1 and water wheel 14, 22, 22 are the transmission cases 4, 4 and the handle 6 , 6 are connected to each other to protect the left and right vicinity of the seedling take-out plate 11, and 23, 23 are side markers provided on the left and right outer sides of the machine body so as to be able to rise and fall freely. The structure is such that one seedling is taken out from the planting claws 12 and successively planted in four rows in the field.

By the way, as shown in FIG. 3, the aircraft is equipped with wheels 24 and mounting brackets 25, 25 on the wheels 14 and the left and right floats 18, 18 so that the center of gravity position A of the aircraft coincides with the center shaft support position of the wheels 14 when the machine is stopped. They are supported through each. Then, within the range of a triangle D formed by connecting the support points of these wheels 14, that is, the center of gravity position A of the machine, and the support points B and C of the left and right floats 18, 18 with a line, the seedling stand 7
The seedling platform 7 is supported by the body so as to draw a center of gravity action locus F that changes the center of gravity position E of the seedling platform 7 left and right by the amount of lateral movement L of the seedling platform 7. Furthermore, when the aircraft is running, the transmission reaction force of the wheels 23 causes the center of gravity of the aircraft to be located at A.
When the machine retreats a distance R to the rear displacement position A, the center of gravity of the machine moves left and right by a lateral movement amount l at this displacement position A due to the effect of the variation in the movement amount L of the center of gravity position E on the seedling platform 7. The center of gravity action locus G
is configured to be drawn within the range of the triangle D.

This embodiment is configured as described above, and when the machine changes from a stopped state to a running state, the center of gravity of the machine moves from position A to position A due to the rolling reaction force of the wheels 14. As the seedling platform 7 moves from side to side by the amount of movement L, the center of gravity of the machine at this position A changes from side to side by the amount of movement l, causing internal movements such as vibrations and shocks in the body. At this time, the action locus G of the center of gravity of the machine drawn is included in the range of the triangle D mentioned above, which connects the support points A, B, and C of the wheels 14 and the left and right floats 18, 18.
The aircraft body is stably and reliably supported by these support points A, B, and C, and fluctuations in these points do not cause problems such as tilting the aircraft body.

In the above-mentioned embodiment, the present invention was applied to a single-wheel type rice transplanter for planting in four rows, but the present invention can be similarly applied to other single-wheel type rice transplanters such as those for planting in two rows.

"Effects of the Invention" As shown in the embodiments above, the present invention has a pair of running floats 1 on both the left and right sides of the paddy wheel 14 at the center of the fuselage.
8, 18, and is equipped with a backward-tilting seedling stand 7 at the rear of the machine body that can freely reciprocate from side to side. Since the machine body is supported by these wheels 14 and left and right floats 18, 18, respectively, so as to move within a triangle D connecting points A, B, and C, the rolling reaction force of the wheels 14 changes the center of gravity of the machine when traveling. , the seedling table 7 is moved back and forth from side to side to move back to the rear position A.
The wheels 14 and the left and right floats 18,
As a result of being able to keep the above-mentioned displacement movement of the machine's center of gravity within the range of triangle D connecting 18, it is possible to effectively maintain the stability of the machine, and therefore, even if it is a single-wheel type rice transplanter, the balance can be maintained. It has remarkable effects, such as being able to work better and improving work efficiency and safety.

[Brief explanation of drawings]

FIG. 1 is an overall side view of a single-wheel rice transplanter showing an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is an enlarged plan explanatory view of the main parts. 7... Seedling stand, 14... Paddy wheel, 18... Running float, A, B, C... Support point, D... Triangle.

Claims (1)

[Claims] 1. In a single-wheel rice transplanter, which is equipped with a pair of running floats on both sides of the rice paddy wheels in the center of the machine, and a backward-tilting seedling stand at the rear of the machine that can be moved back and forth from side to side, the center of gravity of the machine is centered on the wheels. A single-wheel rice transplanter characterized in that the machine body is supported by the wheels and the left and right floats so as to be moved within a triangle connecting the support points of the left and right floats.