JPH044491Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a seedling stopping device on a seedling mounting stand of a walking rice transplanter or a riding rice transplanter.

[Prior art]

Conventionally, the seedling mounting table installed in rice transplanters is designed to place multiple pine seedlings horizontally, but when planting along ridges or headlands, it is necessary to place multiple pine seedlings on the table. Among the seedlings, pine seedlings at positions where they are not to be planted are stopped by a seedling stopping device.

This kind of conventional seedling stopping device on the seedling mounting table of a rice transplanter is designed to stop only some of the seedling planting devices among the multiple sets of seedling planting devices installed opposite to the multiple seedling mounting tables. A clutch-type vehicle has been proposed that is provided with a clutch mechanism for stopping the vehicle.

However, this method requires a clutch mechanism to stop only a part of the seedling planting device, which has the disadvantage of being expensive, and also because the seedling planting device is paired with two rows. Therefore, there is also the disadvantage that it is not possible to stop a device for planting only one seedling.

On the other hand, as a type different from this clutch type, the seedling planting device remains movable without being stopped, and the locking piece provided below the seedling mounting table is moved upward by a predetermined distance. Many devices have been proposed in the form of a locking piece, which allows pine seedlings in any row to come to a halt by being locked to the lower end of the seedbed.

However, with this type of locking piece, the locking piece itself is usually provided on the surface of the pine seedlings below the seedling placement table, so even if it is a walk-behind rice transplanter, the locking piece itself cannot be used. There is an inconvenience in that the operator has to move to the front of the operating position in order to operate the locking piece, and in the case of riding rice transplanters, the locking piece located below the rear of the driver's seat is inconvenient. There was an inconvenience in that the operator had to get out of the driver's seat to operate it.

[Purpose of invention]

The present invention was devised in view of the above-mentioned conventional situation and to eliminate the drawbacks, and the seedling stopping device can be activated by one-touch operation of the bottom plate extending above the seedling table. It is an object of the present invention to provide a seedling stopping device on a seedling mounting table of a rice transplanter.

[Structure of the idea]

The seedling stopping device of the seedling mounting table of the rice transplanter according to the present invention which achieves the above object is configured to move the seedling mounting table horizontally to the seedling mounting table which moves back and forth from side to side with the facing seedling take-out port facing downward. In a rice transplanter equipped with a seedling feeding roller that is driven in the seedling feeding direction only at the terminal end and freely rotates in the reverse direction, a bottom plate provided on the seedling mounting table that is selectively movable between a lower position and an upper position is connected to a locking needle. The locking needle is moved integrally with the seedling bed while piercing the back side of the pine seedbed that moves upward with the bottom plate as the bottom plate moves upward, and moves the bottom plate downward. This was done by evacuating from the back side of the pine seedbed, which had been moved downward along with the bottom board.

〔Example〕

Hereinafter, the drawings showing one embodiment of the present invention will be described.

Figure 1 shows a walking type rice transplanter.
This rice transplanter 1 has a control handle 2 disposed at the rear of the machine body, and a worker is positioned behind a grip portion 3 of the control handle 2.

In front of the control handle 2, there is a seedling mounting table 4 which is inclined in a direction substantially along the direction of inclination of the control handle 2.
is provided so as to be horizontally movable back and forth in the left-right direction, and a seedling receiving plate 5 is provided below the seedling mounting table 4 to which the body is fixed laterally. A seedling outlet 6 is opened in the seedling receiving plate 5, and a seedling planting device 8 having a planting rod 7 at its tip facing the seedling outlet 6 is installed in two rows in pairs. It is arranged.

When the planting rod 7 descends through the seedling take-out port 6 of the seedling table 4 through the movement trajectory 9 shown in FIGS. 6 and 7, its lower end touches the seedling receiving plate 5 on the seedling table 4 Seedlings are separated from the front row of the pine seedbed 10 along with their seedlings and planted on the field below.

The seedling table 4 shown in FIG. 2 is for two rows, and this seedling table 4 has ribs 4a arranged at both left and right ends and in the center at intervals of the width of the pine seedbed. The lower end side is fixed to a lateral sliding member 21 that reciprocates laterally to the left and right with respect to the seedling receiving plate 5 fixed to the body, and the upper end side of each rib 4a is a lateral member disposed laterally. 22, the seedling mounting table 4 is constructed to be lightweight and strong, and by utilizing the ribs 4a, it can be constructed for multiple rows.

Guide grooves 11 are provided on both left and right sides of the rib 4a, and a guide groove 11 is provided in the pair of opposing guide grooves 11 so that the rib 4a can be selectively moved to a lower position K and an upper position S. A bottom plate 12 made of a flexible material and movable along the curve of the seedling mounting table 4 is guided and fitted. A handle 23 is provided at the upper end of the bottom plate 12 to facilitate push/pull operations, and the seedling table 4 is driven in one direction only at the end of the horizontal movement of the seedling table 4, and is driven in the opposite direction. Since a rotatable seedling feeding roller 24 is provided, the bottom plate 12 is provided with a hole 25 for allowing this seedling feeding roller 24 to act.

Note that this bottom plate 12 does not require removing the bottom plate of the seedling table 4 itself as in the embodiment, but uses a seedling table having a bottom plate in the same way as in the past, and places the lower position K and the upper position on the bottom plate. A double bottom plate that can be selectively moved to S and S may be arranged.

Although not shown, a click stop or the like is provided as a positioning device for the upper and lower movement positions of the bottom plate 12, respectively.

The bottom plate 12 has a plurality of elongated holes 13 opened laterally upward by a predetermined distance from the lower end, and a seedling locking device 15 is installed in each of these elongated holes 13.
A plurality of locking needles 14 constituting the locking pins 14 are arranged to rise and fall, respectively. When the bottom plates are arranged in double layers as in the previous example, the elongated holes 13 are opened in both bottom plates.

The locking needles 14 are each fixed to a support shaft 16 that is rotatably supported by left and right guide members 17, 17 fixed below the bottom plate 12, and an arm 18 fixed to the support shaft 16 is attached to the support shaft 16. The bottom plate 12 is operatively connected to the seedling locking device 15 by removably pivoting the other end of the rod 19, one end of which is pivoted to the tip of the rod, to a support member 20 fixed to the back surface of the bottom plate 12. It's becoming like that.

In other words, this seedling locking device 15 stands up the back side 10a of the pine seedbed 10, which has moved upward together with the bottom plate 12 due to the movement of the upper position S of the bottom plate 12, in conjunction with the upward movement of the bottom plate 12.
It is locked by a locking needle 14 inserted into the bottom plate 12, and this locking needle 14 is located at a lower position K
It is interlocked and connected to the bottom plate 12 so as to escape from the back side 10a of the pine seedbed 10 which has moved downward together with the bottom plate 12 due to the movement.

Therefore, this seedling mounting stand 4 is
In the case of the walking type rice transplanter shown in FIG. By arranging the handle 23 so as to be close to the driver's seat 26, which is indicated by the chain line in FIG. Seedling table 4
It can be operated at hand using the bottom plate 12 that extends upward and is close to the operator.

By moving the bottom plate 12 extending above the seedling table 4 to the upper position S by manual operation, the back side 10a of the pine seedling bed 10, which has moved upward together with the bottom plate 12, is raised up as the bottom plate 12 moves. By locking with a seedling locking device 15 using a locking needle 14 inserted into the back side 10a of the pine seedbed 10, the lower end of the pine seedbed 10 and the seedling receiving plate 5 are locked.
Since there is a gap of H between the seedling planting device 8 and
It can be used as a seedling stopping device that stops planting seedlings with a single touch operation while in the working position without stopping the machine.This allows the worker to stop planting seedlings with a single touch operation from his/her hand when planting on headlands or along ridges. Accordingly, among the plurality of seedling mounting stands 4 arranged in parallel, the seedling locking device 1 of an arbitrary row of seedling mounting stands 4 that is unnecessary for seedling planting is set.
5 can be operated conveniently. in this case,
The seedling feeding roller 24 is driven in the seedling feeding direction only at the end of the lateral movement of the seedling table 4 and freely rotates in the reverse direction, and the bottom plate 12 of the seedling table 4 is also arranged at a steep slope. However, due to the resistance of the seedling feeding roller 24 to freely rotate in the opposite direction to the seedling feeding direction or the slipping of the steeply inclined bottom plate 12, the pine seedling bed 10
can be moved integrally with the bottom plate 12 to an upper position while gradually stabbing the locking needle 14, which moves together with the bottom plate 12, deeper into the back side 10a thereof.
Further, when the seedling mounting table 4 moves to the end of the horizontal movement, the seedling feeding roller 24 is driven, but at this time as well,
The back side 10 of the pine seedling bed 10 moves together with the bottom plate 12 to the upper position while piercing the locking needle 14.
Since the side of the seedling feeding roller 24 rotating in a circular path slips with respect to a, the pine seedling bed 10 can be reliably pulled up to the seedling stopping position without being vertically fed even at the end of the horizontal movement of the seedling table 4, and the bottom plate At the upper position of the pine seedling bed 10 that has moved together with the pine seedling bed 12, the locking needle 14 stands up as shown in FIG. Since the depth is deeper than the operating height of the seedling feeding roller 24 by the height h, the pine seedling bed 10 is
Even if 4 is repeatedly driven, the seedlings can be reliably held at the seedling stopping position without moving to the lower position.

To release the seedling locking device 15, the operator simply moves the bottom plate 12 to the lower position K with a single touch operation.
The pine seedling bed 10 has moved downward together with the bottom plate 12
Normal seedling planting can be carried out by retracting the seedling locking device 15 from the back side 10a and bringing the lower end of the pine seedbed 10 into contact with the seedling receiving plate 5. In this case, the rear side 10a of the pine seedling bed 10 where the locking needles 14 of the seedling locking device 15 move downward together with the bottom plate 12.
Since the pine seedling bed 10 moves integrally with the seedbed 10 while sticking into the bottom plate, the pine seedling bed 10 can be moved integrally with the bottom plate 12 without slipping downward before the bottom plate 12, and at the same time, the lower position where the pine seedling bed 10 has been moved together with the bottom plate 12 can be moved integrally with the bottom plate 12. Then, the locking needle 14 can be retracted from the pine seedling bed 10.

[Effect of idea]

In short, the seedling stopping device in the seedling mounting table of the rice transplanter according to the present invention is designed to prevent the seedling planting device from moving back and forth from side to side with the opposing seedling take-out port facing downward. In a rice transplanter equipped with a seedling feeding roller that is driven only in the seedling feeding direction and freely rotates in the opposite direction, the seedling mounting table has a bottom plate that is selectively movable between a lower position and an upper position, and has a locking needle. Interlockingly connected to a seedling locking device, the locking needle is
By moving the bottom plate upward, the back side of the pine seedbed that moves upward with the bottom plate is pierced and moved together with the seedbed, and by moving the bottom plate downward, it is evacuated from the back side of the pine seedbed that has moved downward with the bottom plate. By simply moving the bottom plate provided on the seedling table to the upper position by manual operation, the locking needle, which moves upward together with the bottom plate, pierces the back side of the pine seedling bed and moves together with the seedling bed, allowing the seedlings to be sent. The pine seedling bed can be reliably moved to the upper position along with the bottom board even against the resistance of the rollers or the slippage of the steeply inclined bottom board, and at the same time,
Can be securely locked in the upper position.

Moreover, by simply moving the bottom plate of the seedling table to the lower position by manual operation, the locking needles of the seedling locking device can be retracted from the back side of the pine seedling bed, which has moved downward together with the bottom plate, allowing normal seedlings to be retracted. Planting can be done.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention,
Fig. 1 is an overall side view of the walk-behind rice transplanter, Fig. 2 is a perspective view of the seedling mounting table, Fig. 3 is a sectional view taken along the line A-A in Fig. 2, and Fig. 4 is a B--B in Fig. 2. B arrow sectional view, 5th
The figure is a plan view taken in the direction of arrow C in Figure 4, Figures 6 and 7 are side sectional views of the seedling mounting table showing the operating state, Figure 6 shows the seedling planting state, and Figure 7 shows the seedlings stopped. It indicates the condition. 4... Seedling mounting table, 6... Seedling take-out port, 8... Seedling planting device, 10... Pine seedbed, 10a... Back side,
12... Bottom plate, 15... Seedling locking device.

Claims (1)

[Scope of utility model registration request] The seedling placing device moves back and forth from side to side with the facing seedling outlet facing downward, and includes a seedling feeding roller that is driven in the seedling feeding direction only at the end of the horizontal movement of the seedling placing device and freely rotates in the opposite direction. In the rice transplanter equipped with the above-mentioned rice transplanter, a bottom plate provided on the seedling mounting table that is selectively movable between a lower position and an upper position is interlocked and connected to a seedling locking device equipped with a locking needle, and the locking needle is connected to a seedling locking device provided with a locking needle. The rice transplanter's seedlings are pierced through the back side of the pine seedbed that moves upwards with the bottom plate due to the upward position movement, and are moved together with the seedbed, and are evacuated from the back side of the pine seedbed that moves downward with the bottom plate due to the downward position movement of the bottom plate. Seedling stopping device on the mounting table.