JPH0614811B2 - Rice transplanter seedling supply device - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

This invention is used for a rice transplanter that cuts and transplants matted seedlings with a seedling planting device, and corresponds to a seedling planting device that has stopped operating among a plurality of seedling planting devices. This will stop the transfer of only seedlings that grow.

[Prior art]

In the rice transplanter, in the vicinity of the end of the work, among the plurality of seedling planting devices arranged side by side, seedlings are not partially planted so as to correspond to the width of the field. Therefore, when the operation of the seedling planting device is stopped, the seedling feeding device automatically stops (Actual Publication No. 57-53125), and when the seedlings are dammed on the seedling tank, the seedling feeding device also automatically stops ( No. 55-176715) is proposed.

[Problems to be Solved by the Invention]

However, the former requires a cylinder to move left and right on the shaft for each line, and the structure is complicated, and muddy water is always covered under the seedling tank where these are installed, so the cylinder is on the shaft. It may not move and is not in practical use. In addition, the latter requires a damming work for the seedlings, which is troublesome to operate. It should be noted that it is possible to replace the former tubular portion with the latter tension clutch, but in the latter, this tension roller greatly extends downward from the seedling tank when the belt is stopped, so a large space is required, It could not be installed in a place with limited space such as the lower end of the seedling tank.

[Means for Solving the Problems]

This invention divides the seedling tank 9 that reciprocates left and right in order to solve the above problems into a plurality of seedling placing portions 9a to 9e, and a seedling planting device 10 ... Corresponding to each seedling placing portion 9a to 9e. Provided,
In a multi-row Ueda planting machine provided with a plurality of stop clutches 31 ... Which partially stop the seedling planting devices 10 ...
The seedling planting device 10 for seedlings placed on the respective seedling placement portions 9a to 9e
The transfer belt 28 that transfers to the side of the upper and lower driven rollers 2
5 and the driving rollers 22 are wound around each driving roller 22, and each driving roller 22 is supported by one driving shaft 24, and the driven rollers 25 are supported by a plurality of divided roller supporting shafts 26. Each roller support shaft 26 ... Is independently provided so as to move toward and away from the drive shaft 24, and when one of the stop clutches 31 ... Is disengaged, the corresponding roller support shaft 26 is driven. This is a seedling supply device for a rice transplanter, which is provided so as to move to the 22 side and loosen the transfer belt 28 so that the transfer belt 28 does not rotate.

[Operation effect]

According to the present invention, the rotation of the transfer belt 28 corresponding to the seedling planting device 10 that has stopped operating is automatically stopped, so that the bottom of the stopped seedling is not damaged by the transfer belt 28. Further, transfer belts 28 for transferring the seedlings placed on the seedling placing portions 9a to 9e to the seedling planting device 10 side are wound around the upper and lower driven rollers 25 ... The drive rollers 22 are supported by one drive shaft 24, the driven rollers 25 are supported by a plurality of divided roller support shafts 26, and each roller support shaft 26 is independently driven by the drive shaft 24.
Since the rotation of the drive roller 22 is transmitted to or cut off from the transfer belt 28 by being provided so as to approach or leave in the direction of, the configuration is simple and can be reasonably provided in a narrow space under the seedling tank 9. it can. Further, the side close to the seedling planting device 10 ... Is used as the drive roller 22 ...
Since the transfer belts 28 are provided so as not to move, the relationship with the seedling planting device 10 does not change even if the transfer belt 28 extends, and good seedling transplantation is performed for a long period of time. Further, the rotation and stop of the transfer belt 28 are switched only by moving the upper driven roller 25.
No. 5 is a relatively high position and is less likely to get muddy water, and because it moves vertically along the long hole and does not require precision in the structure of its support, it does not work even if a little muddy water is applied. It is possible to exert stable performance for a long time without any trouble.

【Example】

An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 is a traveling vehicle body, 2 is a front wheel, 3 is a rear wheel, 4 is a hood for covering an engine, 5 is a steering wheel, and 6 is a control seat. Reference numeral 7 is a rice transplanter, which supports a seedling tank 9 on the upper part of the planting mission case 8 so as to reciprocate left and right, and a seedling planting device 10 ... At the rear end of the planting mission case 8 a crank 11.
The rocking rod 12 and the rocking rod 12 are provided so as to move up and down along a long oval locus, and the central and left and right leveling floats 13 and 14 are attached to the lower side of the planted mission case 8. The rice transplanting device 7 is attached to the traveling vehicle body 1 by the elevating link mechanism 15 so as to be vertically movable. In the figure, 16 is an upper link, 17 is a lower link, and 18 is a hydraulic cylinder device. In the seedling tank 9, the left and right frames 19 and 19 and the bottom plate 20 are separated from each other by partitioning bodies 21 ...
b.9c.9d.9e. Then, the bottom plates 20 of the respective seedling placing portions 9a to 9e formed by being divided
Holes 20a are formed in the left and right intermediate portions and the left and right side end portions in the up and down direction (FIG. 3). 22 are lower drive rollers near the seedling planting device 10 side, and are fixed to a single drive shaft 24 supported by brackets 23 at the lower front portion of the seedling tank 9. Denoted at 25 are upper driven rollers, which are attached to respective roller supporting shafts 26. The roller supporting shafts 26 are supported by the elongated holes 27 of the bracket 23 so as to be movable in parallel with the bottom plate 20. ing. 28, a rubber transfer belt, which is wound around a driving roller 22 and a driven roller 25.
.. is moved downward (toward the seedling planting device), the transfer belts 28 are loosened so that they cannot be transmitted and rotated. The drive shaft 24 is provided so as to be transmitted and rotated via a ratchet mechanism 29.
The letter a is provided so that it is engaged with the rotary arm 30 that is driven to rotate on the outer side of the planted mission case 8 only when the seedling tank 9 reaches the left and right lateral ends to be rotated. 31 ... is a stop clutch, which is appropriately turned “ON” by a shifter 35, which is interposed between the rotary shaft 33 of the crank 11 of the seedling planting device 10 and the drive sprocket 34.
It is provided so that you can turn it off. Denoted at 36 are springs that urge the clutch 31 in the "disengaged" direction. Denoted at 37 are clutch operating levers for operating "on" and "off" of the respective stop clutches 31. Five are arranged side by side on the left side of the control seat 6. These clutch operating levers 37 ... It is connected to the stop clutches 31 through. 39 is a wire connecting between the spring 40 locked to the driven shaft 26 and the clutch operating lever 37, and the stop clutch 31 ... When the transmission is turned off, the seedling is cut off Seedling placement parts 9a to 9e corresponding to the planting device 10 ...
The roller support shaft 26 of the
The transfer belt 28 wound around the driven roller 25 attached to the drive roller 22 is loosened so that the transfer belt 28 slides between the drive roller 22 and the drive belt 22 and does not perform the transfer function. Next, the operation of the above example will be described in detail. Each seedling placing section 9a-
A mat-shaped seedling is placed on 9e. At this time, the clutch operating levers 37 ... Are operated backward as shown in FIGS. 1 and 2 to tension the clutch wires 38 ... And the wires 39. The support shafts 26 are pulled up and the seedling placement portions 9a to 9e are pulled up.
The transfer belts 28, which are stretched on the bottom plate of, are tensioned. In this state, each part is driven to start seedling planting work. That is, when the rice transplanting device 7 is towed by the traveling vehicle body 1 with the lower leveling floats 13 and 14 in contact with the surface soil surface of the paddy field,
The seedling planting device 10 ... Is driven while the seedling tank 9 reciprocates left and right. Therefore, the lower ends of the seedlings on the seedling placement parts 9a to 9e are cut off by the seedling planting device 10 for each plant and planted on the surface soil surface of the paddy field that has been leveled. At this time, when the seedling tank 9 reaches the left and right lateral ends, the ratchet lever 29a is engaged with the rotating arm 30 that is always rotating, the drive shaft 24 is rotated, and the transfer belt 28 is moved by the drive roller 22. Is turned. For this reason, the mat-shaped seedlings are sent to the seedling planting device 10 side, and even when the seedling tank 9 is folded back and moved, no stall is caused. In this way, planting work of seedlings is performed, but as the planting is approached, the size of the remaining planted field (distance to the ridge)
When it is more than a multiple of the total planting width of the rice transplanter, for example, in the case of 5 row planting rice transplanter of the example, when 8 rows are left, 3 rows are planted first and then Complete the full width transplant by planting 5 rows. At this time, the planting of the two unplanted sides is stopped, but the clutch operating lever 37 on the stopped side is stopped.
・ Operate 37 in the direction of arrow a. Then each wire 3
8 and 39 are loosened, the seedling planting device 10.10 at that portion is stopped, and the transfer belts 28.28 of the seedling placing portions 9a and 9b corresponding to the seedling planting device 10.10 are loosened, and the seedling tank. Even when 9 reaches the lateral edge, the seedling placing part 9a
The transfer belts 28, 28 of 9b do not rotate. Therefore, the roots of the seedlings may not be scratched and damaged by the transfer belts 28 or 28, or may be strongly pressed downward and compressed to change the number of seedlings to be planted after the planting is restarted. Note that, as shown in FIG. 9, the drive shaft 24 may be divided into a plurality of drive shafts 24 and may be connected by the shaft couplings 41 ...

[Brief description of drawings]

FIG. 1 is a side view of a rice transplanter according to the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a sectional side view of a part thereof, and FIG. 4 is a simplified plan view of a part thereof. FIG. 6 is a partially cut front view, FIG. 6 is a partially cut front view, FIG. 7 is a partially cut side view, FIG. 8 is a partially cut plan view, and FIG. 9 is another example. It is a front view of a part of FIG. The reference numerals in the figure are as follows. 9 ... Seedling tank, 9a-9e ... Seedling placement part 10 ... Seedling planting device, 22 ... Drive roller 24 ... Drive shaft, 25 ... Followed roller 26 ... Roller support shaft, 28 ... Transfer belt 31 ... Stop clutch

Claims (1)

[Claims] 1. A seedling tank 9 that reciprocates left and right is divided into a plurality of seedling placing portions 9a to 9e, and seedling planting devices 10 are provided corresponding to the respective seedling placing portions 9a to 9e. Attached device 10
In a multi-row planter planting machine provided with a plurality of stop clutches 31 for partially stopping ..., a transfer belt for transferring the seedlings placed on the respective seedling placement sections 9a to 9e to the seedling planting device 10 side. 28 are upper and lower driven rollers 25 and driving rollers 22.
Each drive roller 22 is supported by one drive shaft 24, and the driven rollers 25 are supported by a plurality of divided roller support shafts 26 and each roller support shaft 26.
Are independently provided so as to move toward and away from each other in the direction of the drive shaft 24, and when one of the stop clutches 31 is disengaged, the corresponding roller support shaft 26 moves to the drive roller 22 side. The seedling supply device of the rice transplanter is characterized in that the transfer belt 28 is loosened so that the transfer belt 28 does not rotate.