JPH0113322B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a preliminary seedling platform for a rice transplanter, and more specifically, when feeding seedlings from the preliminary seedling platform to a seedling tank of a rice transplanting device, the seedlings can be efficiently and easily loaded. This invention relates to a spare seedling stand configured to perform feeding operations.

In the case of a conventional rice transplanter in which a rice transplanting device d having a seedling tank c that is rollably mounted on a towing vehicle body b having a spare seedling platform a is provided, the tiller e is inclined and the towing vehicle body b If the rice-transplanting device d is kept horizontal by the rolling device, but the preliminary seedling platform a is tilted together with the towing vehicle body b, so seedlings are supplied from the preliminary seedling platform a to the seedling tank c. At this time, the seedling supply end a' of the preliminary seedling stand a did not match the upper end c' of the seedling tank c, making it extremely difficult to supply the seedlings.

Therefore, an object of the present invention is to eliminate the drawbacks of the conventional structure described above and provide a spare seedling stand that can efficiently and easily supply seedlings. The measures taken were as follows.

That is, a towing vehicle body 1, a rice transplanting device 2 that is rollably equipped with respect to the towing vehicle body 1, and the towing vehicle body 1.
In a rice transplanter 4 having a spare seedling platform 3 installed in the rice transplanter 4, the posture of the preliminary seedling platform 3 can be changed between a horizontal state and an inclined state by moving the rice transplanting device side of the preliminary seedling platform 3 up and down. At the same time, a preliminary seedling loading stand 3 is installed at the height of the seedling supply port of the seedling tank 5 on the rice transplanting device 2 side.
Place the spare seedling stand 3 so that the height of the supply port matches that of the
A stopper 15 for receiving the seedlings is provided, and the preliminary seedling stand 3
This is a spare seedling platform for a rice transplanter, which is provided so as to be able to roll freely around an axis 6 in the longitudinal direction of the machine so as to match the seedling supply side of the seedling tank 5 of the rice transplanting device 2.

Next, one embodiment of the present invention will be described based on the drawings. Reference numeral 1 denotes a general towing vehicle body of a riding type, which is composed of a front steering wheel 7, a rear driving wheel 8, a steering handle 9, a passenger seat 10, and the like. Reference numeral 2 is a four-row rice planting device that is installed at the rear of the towing vehicle body 1 so as to be movable up and down via a link mechanism. A seedling planting rod 12, which is provided opposite to the lower end and reciprocates up and down to divide the seedlings from the seedling tank 5 one by one and plant them in the field, a transmission case 13 for the rice transplanting device, and the lower end of the transmission case 13. The bases are fixed to both sides of the ground leveling float 14 and the transmission case 13, which are provided along the lower side of the seedling tank 5, protruding slightly beyond the upper end 5a of the seedling tank 5, and the lower rear end of the preliminary seedling loading stand 3 described later. It is composed of a loop-shaped spare seedling stand stopper 15 and the like. 16 is a rolling shaft having an axis in the longitudinal direction of the aircraft,
Rolling bearing 1 provided at the rear of link mechanism 11
7 and is rotatably supported. Reference numeral 3 denotes a preliminary seedling loading stand provided at the rear of the towing vehicle body, on which four plate-shaped seedlings with soil scooped from the seedling raising box can be placed side by side on the seedling scooping plate 18. Rolling arms 19, 19' extending downward are integrally provided at the lower portions of the left and right center portions. The width of the preliminary seedling stand 3 is configured to be the same as the width of the seedling tank 5. Reference numerals 20 and 20' denote support columns for a preliminary seedling stand fixedly installed on both sides of the rear part of the towing vehicle body 1, and at the upper end thereof, there are support shafts 21 and 21' whose axes extend in the left-right direction of the vehicle.
is provided. Reference numeral 22 denotes a swing arm, and bearing members 23 and 23' that fit into the support shafts 21 and 21' are provided at both ends of the swing arm.
It is provided to swing in the longitudinal direction of the aircraft with the axis 1 and 21' as the axes. Reference numeral 24 denotes a rolling column that is integrally erected upward in the center of the swinging arm 22, and a shaft support member 25a that is U-shaped in side view is provided at the upper end of the column. The lower end of 19 is a shaft 6 whose axis is in the longitudinal direction of the aircraft.
It is supported by Reference numeral 27 is a hydraulic vertical movement device for the preliminary seedling platform 3, which separates the upper chamber 27a' and the lower chamber 27.
The lower end of the hydraulic cylinder 27a is pivotally supported to the fuselage by a shaft 28, and the upper end of the hydraulic piston 27b is A U-shaped shaft support portion 25b is provided, and the rolling arm 1 is supported by the shaft support member 25b.
9' is pivotally supported by a shaft 6 having an axis in the longitudinal direction of the fuselage. Reference numeral 29 denotes a rolling stopper that prevents the rolling arm 19 fixedly attached to the machine body from swinging, and is provided with clamping notches 29a that clamp the rolling arm 19 from both left and right sides.
In addition, the rolling arm 1 is provided in the clamping notch 29a.
Correction guide part 29b for correcting the rolling posture of No.9
is provided. 30 is a spare seedling stand posture control lever for vertically moving the spare seedling stand 3;
By operating the lever 30, the control valve 31 is switched, the hydraulic piston 27b is moved forward and backward, and the swing arm 22 of the stand 3 for supporting seedlings is swung back and forth around the support shafts 21 and 21'. Platform 3
It allows you to move up and down.

The plate-shaped seedlings with soil are placed on the seedling tank 5 of the riding-type rice transplanter 4 configured as described above and the preliminary seedling loading stand 3 in the seedling loading state shown by the solid line in FIG. 2, and each part is driven. At least rice planting work is to be carried out, but when there are only a few plate-shaped seedlings with soil left in the seedling tank 5,
The operator stops the aircraft when the seedling tank 5 is located at the center of the left and right sides of the aircraft, that is, when the phases of the seedling tank 5 and the preliminary seedling platform 3 match in the horizontal direction,
The plate-shaped seedlings with soil on the preliminary seedling platform 3 are supplied to the seedling tank 5. In this case, when the preliminary seedling platform control lever 30 is operated from the upper position to the lower position, the upper chamber 27a of the hydraulic cylinder 27a In order for pressurized oil to be delivered to the lower chamber 27a'', the oil in the lower chamber 27a'' to be discharged, and the hydraulic piston 27b to move downward, the preliminary seedling platform 3 is installed on the preliminary seedling platform supports 20, 20'. The supported shaft 21,
By swinging the swinging arm 22 in the direction A about the axis 21', it is displaced to the seedling feeding state shown by the imaginary line in FIG. At that time, rolling arm 19
is the clamping notch 29 of the rolling stopper 29.
Since the stand 3 is detached from the shaft 26, the stand 3
It is possible to roll freely around the axes a and 26b, and even when the rice transplanting device 2 is rolling around the rolling shaft 16 relative to the tractor body 1 because the tiller is tilted, it can be rolled in the same way as the seedling tank 3. The lower rear end of the preliminary seedling platform 3 is supported by a preliminary seedling platform stopper 15 provided on the rice transplanting device 2.
The rear end of the preliminary seedling stand 3 and the upper end 5a of the seedling tank 5 match. Then, the operator supplies the plate-shaped seedlings with soil on the preliminary seedling platform 3 to the seedling tank 5, and the rear end of the preliminary seedling platform 3 and the upper end 5a of the seedling tank 5
Since these conditions match, it is possible to supply seedlings extremely efficiently and easily.

Then, when the seedling supply work is finished, when the preliminary seedling platform control lever 30 is operated to the upper position, pressure oil is sent to the lower chamber 27a'' of the hydraulic cylinder 27a, and the upper chamber 2
7a' is discharged and the hydraulic piston 27b advances upward, the preliminary seedling stand 3 is moved by supporting shafts 21, 2.
The swinging arm 22 swings in the opposite direction of arrow B about 1' as the axis, resulting in the seedling placement state shown by the solid line in FIG. In this case, while the rolling arm 19 is corrected from rolling by the correction guide part 29b of the rolling stopper 29, the holding notch 2
9a, the preliminary seedling mounting table 3 is maintained in a horizontal state without rolling in the seedling mounting state.

After completing the seedling supply work, each part is driven again to move the machine forward and perform the rice planting work.

The present invention provides a rice transplanter that includes a towing vehicle body 1, a rice transplanting device 2 that is rollably equipped with respect to the towing vehicle body 1, and a spare seedling platform 3 that is installed in the towing vehicle body 1. The rice transplanting device side of the preliminary seedling platform 3 is configured to be able to change its posture between a horizontal state and an inclined state by moving up and down, and the rice transplanting device 2
A stopper 15 is provided on the side to receive the preliminary seedling platform 3 so that the height of the seedling supply port of the seedling tank 5 matches the height of the supply port of the preliminary seedling platform 3, and the preliminary seedling platform 3 is used for rice planting. Since this is a spare seedling platform for the rice transplanter that can be rolled freely around the axis 6 in the longitudinal direction of the machine body in order to match the seedling supply side of the seedling tank 5 of the device 2, the rice transplanter 2 side can be moved up and down. By tilting so that the heights of the seedling supply port of the preliminary seedling platform 3 and the seedling supply port side of the seedling tank 5 are aligned to match the height of the seedling tank 5 at the time, the rice transplanting device 2 is Even when rolling, the spare seedling platform 3 rolls in such a way that the seedling supply port of the preliminary seedling platform 3 matches the seedling supply port of the seedling tank 5, making it extremely easy and efficient to load the preliminary seedlings. The effect of supplying the seedlings mounted on the platform 3 to the seedling tank 5 is achieved.

[Brief explanation of drawings]

Fig. 1 is a rear view of a rice transplanter with a conventional configuration, Fig. 2 is a side view of a four-row riding type rice transplanter embodying the present invention, Fig. 3 is an enlarged perspective view of main parts, and Fig. 4 FIG. 2 is an explanatory diagram of the operation of the hydraulic vertical movement device. 1... Traction vehicle body, 2... Rice transplanting device, 3... Spare seedling loading stand, 4... Rice transplanting machine, 5... Seedling tank.

Claims (1)

[Claims] 1. In a rice transplanter that has a towing vehicle body 1, a rice transplanting device 2 that is rollably equipped with respect to the towing vehicle body 1, and a spare seedling platform 3 that is installed in the towing vehicle body 1, the preliminary seedling platform 3 is The rice transplanting device side of the preliminary seedling platform 3 is configured to be able to change its posture between a horizontal state and an inclined state by moving up and down, and the preliminary seedling platform 3 is placed at the height of the seedling supply port of the seedling tank 5 on the rice transplanting device 2 side. A stopper 15 is provided to receive the preliminary seedling platform 3 so that the height of the supply port matches, and the shaft 6 in the longitudinal direction of the machine is installed so that the preliminary seedling platform 3 is aligned with the seedling supply side of the seedling tank 5 of the rice transplanting device 2. A spare seedling stand for a rice transplanter, which is characterized by being able to roll freely around the rice transplanter.