JPH0446526B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is used in a rice transplanter that cuts out one seedling from a flat plate-shaped group of seedlings and transplants the seedling.

(Prior Art) A device is used in which a plurality of ratchet wheels are provided at the lower part of the bottom plate 13b, and the flat plate-shaped seedlings A on the bottom plate 13b are sent out downward by rotation of the ratchet wheels. Further, when the upper end of the flat seedling A falls due to being cut off, the actuating body 30 of the detector 28 rises above the bottom plate 13b to notify that the seedling is broken.
This is disclosed in Publication No. 158634, Publication of Utility Model Application Publication No. 56-77232, etc.

(Problems to be Solved by the Invention) A plurality of flat seedlings A, A... placed side by side on the respective bottom plates 13b are connected to the planting claws 14a, 1.
At 4a..., one seedling at the bottom end is cut off horizontally. Then, when the side edge is cut off, it is rolled out downward. Here, a plurality of planted nails 14a, 14
The amounts of the above-mentioned seedlings removed by a... do not match completely, and the positions of the upper ends of the plate-shaped seedlings A, A... become uneven when the machine is operated.

When the one whose upper end descends the fastest among the plurality of flat seedlings A, A... passes over the actuator 30, a signal is issued by a command from the detector 28, and the operator starts operation of the rice transplanter. Stop, and add a new flat seedling A on the bottom plate 13a where the signal was issued.

Here, when the operator restarts the operation of the rice transplanter, the difference in the positions of the upper ends of the plurality of flat seedlings A, A, etc. is very small, so a signal is output one after another within a short period of time, and the signal is often displayed. You will have to stop driving. Therefore, in order to avoid this trouble, the operator should select flat seedlings A, A... whose upper ends have not yet passed over the operating body 30.
After adding new plate-shaped seedlings A, A, etc. to the top, operation is resumed.

Here, in the conventional device, the actuating body 30 was provided above the ratchet wheel, so the upper end was the actuating body 30.
A new plate-shaped seedling A that is added onto a plate-shaped seedling A that has not passed through is not given the forced transport force by the ratchet wheel. On the other hand, some of the flat seedlings A are difficult to descend depending on the soil quality and moisture condition, and resistance is applied by the actuator 30, so new flat seedlings added above the actuator 30 A
does not descend, and the upper end of the lower plate-shaped seedling A is the operating body 3.
When the vehicle passed above 0, the detector 28 would issue a signal and the operator would stop the operation. Also,
If I ignored this and continued driving, the seedlings would not come down, resulting in missing plants when transplanting.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a plate-shaped seedling A on each of a plurality of horizontally arranged bottom plates 13b, 13b... provided with side plates 13a, 13a on the left and right sides. , A..., a plurality of vertical seedling feeding endless belts 21, 21... wrapped around a pair of upper and lower rollers 24, 23, and a plurality of detection devices for detecting the presence or absence of seedlings. The seedling stand 13 is provided with the bottom plates 13b, 13b... facing upward and is movable from side to side, and the endless vertical seedling feeders 21, 21... are provided with the bottom plate 13b. ，
13b... One bottom plate 13b in the lower part
, the pair is arranged side by side with a certain distance between them, and the upper surface protrudes slightly upward from the bottom plate 13b, and when the seedling platform 13 reaches the lateral end, the direction in which the plate-shaped seedling A placed on top is sent downward. The detectors 28, 28... are provided so that the actuating bodies 30, 30... projecting upward from the bottom are arranged to undulate depending on the presence or absence of the flat seedlings A, A..., respectively. The actuating bodies 30, 30... are a pair of left and right endless seedling vertical feed belts 2.
The seedling feeding device in a rice transplanter is characterized in that it is arranged in a straight line between the axes of upper and lower rollers 24, 23 between 1, 21, . . . in a side view.

(Function) Since the present invention is configured as described above, the rice transplanter is operated with the flat seedlings A, A,... placed on each of the plurality of bottom plates 13b, 13b.... Then,
For the flat seedlings A, A..., since the seedling platform 13 is moving left and right, the lower end is placed horizontally in the planting claws 14, 14.
A... will be taken out one by one. When the horizontal ends are cut off, the endless belts 21, 21 for vertically feeding the seedlings are removed.
... turns and sends out flat seedlings A, A... downward. In this way, plate-shaped seedlings A, A...
are sent downward one after another, but when their upper ends pass over the actuating bodies 30, 30... of the detectors 28, 28..., the actuating bodies 30, 30... stand up, and the detectors 28, 28... A signal is issued based on a command from

Then, the operator stops the operation of the rice transplanter and
Flat seedling A whose upper end passes over the operating body 30
A new flat seedling A is placed on top of the flat seedling A whose upper end has passed the upper end of the vertical feeding endless belt 21.
and restarted operation of the rice transplanter.

(Effect) As described above, according to the present invention, a new flat seedling A that is added onto a flat seedling A whose upper end has passed the operating body 30 is forced to Since the transfer force is applied, the upper and lower two plate-shaped seedlings A and A are forcibly transferred as set,
There is no chance of missing plants when transplanting seedlings.

In addition, when the upper end of one plate-shaped seedling A passes over the operating body 30 and a seedling addition signal is issued, the operator stops the operation of the rice transplanter and not only the plate-shaped seedling A for which this signal was issued, but also , a new plate-shaped seedling A is added to the plate-shaped seedling A where the upper end of the endless seedling vertical feeding belt 21 is appearing when the addition is near, but the new plate-shaped seedling A at the position where this signal is not output is also not a seedling. Since it is forcibly fed by the vertical feeding endless belt 21, the two plate-shaped seedlings A, A, new and old, are fed together, and the actuating body 30 does not stand up from this joint and generate a false alarm, and it also prevents slipping. Even if the flat seedlings A are bad, they will not be missing as in the conventional method.

Then, in this way, a new plate-shaped seedling A is added on top of the plate-shaped seedling A that is not emitting a signal,
Since this is forcibly sent, the number of times the machine has to stop to add seedlings is reduced, resulting in more efficient work.

(Example) Next, an example of the present invention shown in the drawings will be described.

1 is a passenger towing vehicle, and a pair of left and right front wheels 4, 4 and rear wheels 5, 5, which are driven and rotated by a prime mover mounted on the front upper part of the vehicle body 2 and covered by a bonnet 3, are lowered. A steering post is provided on the rear side of the bonnet 3, a handle 6 is provided on this, and a driver's seat 7 is provided behind the handle.
has been established. Reference numeral 8 denotes a chain case that extends diagonally rearward and downward from the left and right sides of the transmission case that constitutes a part of the fuselage 2, and the rear wheels 5, 5 are attached to the lower end of the chain case.

Reference numeral 9 denotes a support frame for the pilot seat 7, which connects the left and right chain cases 8, 8 and is provided in a gate shape when viewed from the back. Reference numeral 10 denotes a preliminary seedling mounting table, which is provided on both left and right sides of the supporting frame 9.

Reference numeral 11 denotes a sight, which is provided on the central front part of the bonnet 3. And this sight 1
1 is equipped with a lamp L, which lights up to issue a signal (warning) when there are fewer seedlings in the seedling tank, which will be described later.

Reference numeral 12 denotes a rice transplanting machine frame, which is mainly composed of a main planting case 12a, and a seedling stand 13 is diagonally installed on the top of this machine frame 12 so as to be able to move back and forth from side to side so that the rear side is at the bottom. Seedling planting devices 14, 14, . . . are attached to the rear end side of the machine frame 13.

That is, FIG. 3 shows a seedling stand 13 for four rows, which has four bottom plates 1 provided with side plates 13a, 13a on the left and right sides.
3b, 13b..., the bottom plate 13b, 13
Both the rear end and the front end of b... are open.

Reference numerals 15 and 16 are supports that support the back surface of the seedling stand 13 and are capable of reciprocating from side to side.

Reference numeral 17 denotes a screen frame, which is approximately L-shaped in side view, is provided integrally with the support 15, is fixed to the rice transplanter frame 12 at the lower end of the seedling platform 13, and is fixed to the rice transplanter frame 12 at the lower end of the seedling platform 13. Seedling dividing openings 18, which are provided longer than the overall width and correspond to the respective bottom plates 13b, 13b...
18... are provided.

In addition, the seedling planting devices 14, 14, . . .
Main planting mission case 12 located below 3.
A pair of sub-planting transmission cases 12b extending rearward at a predetermined distance left and right from a, cranks 15, 15... and swinging bodies 16, 16... on the left and right of the rear end of 12b. The planting claws 14a, 14a... are attached to the seedling dividing openings 18, 1.
8...... from top to bottom to cut off the seedlings and plant them on the soil surface below.

Reference numerals 19, 20, and 20 are soil leveling floats having a center portion and a side portion, and the front portions thereof are provided at the lower part of the rice transplanter frame 12 so as to be movable up and down.

21, 21... is an endless belt for vertically feeding seedlings, and the protrusion a
The bottom plates 13b, 13b, . . . are made of a wide rubber belt provided with a large number of
Elongated holes 22, 22 are long bored in the front and back leaving a little left and right center part in the vertical direction...The upper surface is inside the bottom plate 13b,
A pair of upper and lower rollers 24, 24, and 2 are provided so as to protrude above 13b, and these endless bands 21, 21... are wound around.
3, 23... are integrally installed on the seedling stand 13. The lower rollers 23, 23 are supported by a shaft 25 on which a ratchet (not shown) is inserted, and the ratchet lever 26 rotates on the side of the main planting mission case 12a. When the roller 2 engages the drive rotor 27
3, 23... are provided so as to rotate, thereby rotating the endless bands 21, 21... in the direction of arrow A. The rotor 27 and the ratchet lever 26 are
It is provided so as to engage only when the seedling platform 13 reaches the left and right lateral ends.

28, 28... are detectors consisting of micro switches 29, 29... and operating bodies 30, 30..., each of which is left between the pair of left and right endless bands 21, 21. Seedling tank bottom plate 13
It is elastically supported by a spring 32 in a form that protrudes higher than the upper surface of the endless band 21 from a hole 31 bored in b. The actuating body 30 is a roller 2 when viewed from the side.
The endless band 21 between 3 and 24 stands in a straight position. 33 is a pivot shaft of the operating body 30.
Micro switch 29, 29... is seedling stand 13
The switches 29, 29... are attached to the back side of the bottom plate 13b, and when the operating bodies 30, 30... are pressed by the weight of the flat seedling A, the switches 29, 29... are turned OFF.
The switches 29, 29, . . . are turned on by the biasing force of the springs 32, 32, .

The microswitch 29 of each detector 28 is energized to the lamp L using the electric circuit shown in FIG. 34 is a main switch.

Reference numeral 35 denotes an elevating link, the bases of the upper link 35a and lower link 35b are pivotally connected to the support frame 9, the tips of both links are connected by a vertical link 35c, and the rice transplanter frame 12 is attached to this vertical link 35c. is mounted so that it can rotate freely via a rolling shaft.

Reference numeral 36 denotes a hydraulic cylinder device, the base of which is pivotally mounted on the body side of the towing vehicle 1, and the tip of the piston is connected to an arm fixed to the upper link 35a to operate the elevating link 35 up and down. The rice transplanter frame 12 is configured to move up and down.

In the configuration of the above example, the plate-shaped seedlings A, A, etc., which have grown into pine shapes and are rectangular in plan view, are placed in the seedling tank 13.
a, 13a... Place the rice transplanter on top and operate the rice transplanter.

At this time, each operating body 30, 30...
is lying under the flat seedlings A, A..., and the respective switches 29, 29... are turned OFF, and the lamp L is extinguished. Here, the seedling platform 13 moves from side to side with the lower ends of the flat seedlings A, A... in contact with the inner wall surface of the screen frame 13, so that the seedling dividing openings 18, 18... are moved from top to bottom. Each of the planting claws 14a, 14a, etc. passing through the plant cuts off one seedling, and the cut out seedling descends as it is and is inserted into the mud surface below. Each of the plate-shaped seedlings A, A... is cut off horizontally one by one, and when the seedling platform 13 reaches the horizontal end, one horizontal row is cut off, but at this time, the rotating The child 27 pushes and turns the ratchet lever 26, the shaft 25 turns the lower rollers 23, 23..., and the endless bands 21, 21...
turns in the direction of arrow A, and the flat seedling stands A, A...
It descends by the amount that is removed. As the rice planting work progresses in this manner, the upper ends of the flat seedlings A, A, etc. descend, and one of them passes over the operating body 30. Then, the actuating body 30 is pulled by the spring 32 and stands up, and the micro switch 29 is turned on and the lamp L is turned on.
lights up. The operator, seeing this lit lamp L, stops the operation of the rice transplanter and moves the standby seedling stand 1.
The spare plate-shaped seedling A above 0 is placed on the bottom plate 13b on which the above-mentioned operating body 30 stands up, and is added to the upper end of the plate-shaped seedling A thereon.

At this time, among the left and right plate-shaped seedlings A, A...
If the upper end of the endless strip 21, 21... is exposed, and the upper end of the endless strip 21, 21... is exposed, a new flat plate will be placed on top of it even if the lamp L is not lit. To perform efficient work by adding seedlings A and reducing the frequency of stopping the operation of a rice transplanter.

[Brief explanation of the drawing]

FIG. 1 is a side view of a rice transplanter according to the present invention, FIG. 2 is a partially cutaway side view of the main parts thereof, FIG. 3 is a plan view thereof, and FIG. 4 is an electric circuit diagram thereof. The symbols in the figure are as follows. 13... Seedling stand, 13a... Side plate, 13b... Bottom plate, 14a... Planting claw, 21... Vertical feeding endless belt, 23... Roller, 24...
Roller, 28...detector, 30...operating body.

Claims (1)

[Claims] 1. A seedling stand 13 on which plate-shaped seedlings A, A... are placed on each of a plurality of horizontally arranged bottom plates 13b, 13b..., each having side plates 13a, 13a provided on the left and right sides,
A plurality of vertically feeding endless bands 21, 21 for seedlings are wound around a pair of upper and lower rollers 24, 23, respectively.
and a plurality of detectors 28, 28 for detecting the presence or absence of seedlings.
..., the seedling stand 13 has bottom plates 13b, 13b...
... is provided to move from side to side in a diagonal position facing upward, and the endless vertical feeding of seedlings 21, 21 ... is provided on the bottom plate 13.
b, 13b... one bottom plate 1 in the lower part
A pair of seedlings A are lined up side by side with a certain distance between them with respect to 3b, and the upper surface protrudes slightly upward from the bottom plate 13b, and when the seedling platform 13 reaches the lateral end, the flat plate-shaped seedling A placed on top is sent downward. The detectors 28, 28... are provided to rotate in the direction, and the actuating bodies 30, 30... protrude from the bottom to the top when the flat seedlings A, A...
The actuating bodies 30, 30... are provided to be undulating depending on the presence or absence of the rollers, and the respective actuating bodies 30, 30... are arranged in a straight line between the axes of the upper and lower rollers 24, 23 between the left and right pair of vertical seedling feeding endless bands 21, 21. A seedling supply device in a rice transplanter, characterized in that the device is arranged in a portion of the rice transplanter.