JPH019367Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a seedling planting device that is capable of changing the number of planting rows. Specifically, as the device circulates up and down, the seedlings taken out from the seedling outlet are planted in the field. This invention relates to a device in which a plurality of planting claws are provided, and a plurality of fixed position stopping clutch mechanisms are provided for dividing the drive of the planting claws into a plurality of groups and stopping each group separately and only at a specific phase.

In the above-mentioned seedling planting device, it is desirable that the seedling take-out port be closed when the planting claw is in a stopped state so as to suppress the accidental dropping of seedlings from the seedling take-out port corresponding to the planting claw whose drive is stopped. Therefore, the purpose of the present invention is to make it possible to automatically close the seedling extraction port when the planting claw is stopped by a simple modification that makes effective use of the original configuration, and furthermore,
For this purpose, it is possible to suppress an increase in operating force for driving and intermittent operation of the planting claw.

The structure of the present invention is that, in the above-mentioned seedling planting device, a plurality of lids are provided which can be opened and closed to separately close each of the plurality of seedling take-out ports to prevent the seedlings from falling, and each of the lids is to the planting claw corresponding to the seedling take-out port on which it closes, and is driven to the closed position when the planting claw is in the specific phase, and to the open position when the planting claw is in the seedling take-out phase. It is characterized by being interlocked and connected so that the

Next, the effects of the feature configuration of the present invention will be described.

In other words, by focusing on the fact that the planting claw is stopped only at a specific phase by the action of the fixed position stop clutch mechanism, and by making effective use of this fact, the lid body that closes the seedling take-out port is connected to the planting claw. The fixed position stop clutch mechanism is connected to the planting claw so that it is in the closed position when the clutch is in a specific phase, and opened and closed in the open position when the planting claw is in the seedling retrieval phase. If you stop the drive of the planting claw by operating the , the seedling take-out port corresponding to the stopped planting claw will automatically close without any special operation, and it will be possible to reliably prevent seedlings from falling. Furthermore, as mentioned above, since the lid is opened and closed by effectively utilizing the driving force of the planting claw itself, for example, the lid can be used as an operating tool for a fixed position stop clutch mechanism. An operating tool for the clutch mechanism for opening and closing the lid body when the lid body is connected so that it can be switched to the open position when the clutch is moved to the engaged position, and to the closed position when it is moved to the clutch disengaged position. However, the desired purpose can be achieved without such inconvenience and without adversely affecting the intermittent operation of the planting nail. As a result, a seedling planting device that can be used more conveniently has been obtained.

Embodiments of the present invention will be described in detail below based on the drawings.

As shown in FIGS. 1 and 2, it is equipped with a pair of left and right rear wheels 1, 1 that can be driven and rotated and whose direction can be changed, and a pair of left and right rear wheels 2, 2 that can be driven and rotated,
Engine 3 and transmission case 4, driver's seat 5
an inclined seedling platform 6 that moves back and forth horizontally with a constant stroke with six pine-shaped seedlings W placed side by side in the rear of the passenger vehicle body, which is located in front of the vehicle and at the front end of the vehicle; Six planting claws 7 take out one seedling from the lower end of each pine-shaped seedling W and plant it in the field as they circulate up and down, and are arranged side by side at appropriate intervals in the lateral direction. A seedling planting device 9 equipped with three floats 8 and the like is connected so as to be able to rise and fall via a pair of upper and lower lifting links 10a and 10b, and a hydraulic cylinder 11 for lifting and lowering the seedling planting device is connected to the lifting link 10a. , 10b are provided in a state where they can be vertically swung with respect to the vehicle body, and are configured so that four rows of seedlings are planted sequentially as the vehicle advances, and in order to maintain a constant planting depth, In order to avoid contact of the seedling planting device 9 with the ground when traveling on a headland or on a road, the seedling planting device 9 is configured to be able to be raised and lowered relative to the vehicle body.

To drive the seedling planting device 9, as shown in FIG. The input shaft 14 of the transmission case 13 for driving the device is interlocked and connected via a transmission shaft 15 with a universal joint that allows the seedling planting device 9 to move up and down. A planting clutch 16 that intermittents the drive of
is provided. A sliding shaft 17 for driving a seedling stand is attached to the transmission case 13 for driving the planting device.
are penetrated and supported so as to be slid at a constant stroke, and the claw drive transmission shaft 18 and three drive shafts 19 for each two adjacent planting claws 7 of the six planting claws 7 are interlocked. Three chains 20 to be connected are provided, and each chain 20
A fixed position stop clutch mechanism 22 is provided as described later, which stops the drive of each input sprocket 21 individually only when the planting claws 7 are positioned at a specific phase before taking out the seedlings. 7 and the seedling stand 6 can be turned on and off all at once, and also so that unnecessary driving of the claws 7 can be stopped when working at the edge of a ridge.

To configure the fixed position stop clutch mechanism 22, as shown in FIGS. 3 and 4, the input sprocket 21 is freely rotatably supported on the transmission shaft 18, and the input sprocket 21 is slid to the side of the input sprocket 21 to engage and disengage. A movable clutch piece 24 spline-connected to the transmission shaft 18 is provided with an occlusal protrusion 23,
The input sprocket 21 is configured to be able to be driven on and off. A swing type locking piece 25 that locks and moves the movable clutch piece 24 elastically biased toward the clutch engagement side toward the clutch disengagement side is attached to the rotating shaft 26.
A disk-shaped member 28 is attached to the input sprocket so as to be integrally rotatable with the input sprocket, and also controls the swinging arm 27 connected to the locking piece 25 so as to prevent the locking piece 25 from moving toward the clutch disengagement side. 21 so as to rotate integrally with the disc-shaped member 2.
8, an input sprocket 21 is formed with a notch 29 into which the swinging arm 27 is engaged when the planting claw 7 is in the specific phase, and thus rotates once in one cycle of the planting claw 7. It is configured such that the drive of the planting claws 7 can be stopped only when the planting claws 7 reach a specific phase.

Further, a clutch lever 30 for each of the fixed position stop clutch mechanisms 22 and an arm 26a attached to the rotating shaft 26 are interlocked and connected via a release wire 31, and the clutch lever 30 is locked and held at the clutch release position. A locking frame 32 is provided.

The mounting structure of the planting claw 7 will be described in detail.
As shown in FIGS. 5 and 6, the pawl drive shaft 1
Crank arm 3 attached to rotate integrally with 9
3 and the swing arm 34.
The planting claw 7 is attached to the claw support case 35 in a state where it is clamped by a presser metal fitting 36 bolted to the claw support case 35. However, 37 in the diagram
is a seedling pusher that operates to project so as to separate the seedling from the claw 7 when the claw 7 reaches near the bottom dead center, and is attached to the claw support case 35 so as to be driven in and out.

As shown in FIGS. 5 to 7, a plurality of seedling outlet openings 39 formed in a notch in a seedling sliding frame 38 horizontally disposed along the lower end of the seedling platform 6 are provided to prevent seedlings from falling. A plurality of lids 40 each closing separately to prevent
The two lids 40 are pivoted to be swingable to open and close, and two of the lids 40 are driven on and off at the same time as described above.
Two pieces corresponding to each planting claw 7 are interlocked and connected by a horizontal shaft 41 so that they can swing integrally to open and close. An interlocking rod 42 is used to open and close the lid 40 by pushing and pulling it in accordance with the vertical circulation operation of the planting claw 7.
By this, the swinging arm 41a attached to the horizontal shaft 41 so as to rotate integrally with the crank arm 33 of the planting claw 7 corresponding to the seedling removal port 39 where the lid body 40 closes is interlocked, and the lid is closed. The body 40 is set in a closed position when the planting claws 7 are in the specific phase as shown in FIG. 5, and in an open position when the planting claws 7 are in the seedling extraction phase as shown in FIG. It is configured. However, the interlocking rod 40 is
The interlocking rod 4 is slidably penetrated within a certain range through the member 48 which is rotatably supported on the
A compression spring 49 is provided which presses the planting claw 7 against the rotating member 48 to provide linkage flexibility for stroke absorption.

In short, if the fixed position stop clutch mechanism 22 is operated to stop driving the planting claw 7, the seedling extraction port 39 corresponding to the stopped planting claw 7 can be automatically closed. .

As shown in FIGS. 5 and 8, a wide belt 42 for placing and conveying the pine-shaped seedlings W on the seedling platform 6 to the side of the seedling outlet 39, and a protrusion for locking and conveying the seedlings W are provided. A plurality of chains 43 are provided on the seedling stand 6, and a belt 42 is provided in such a manner that the chain 43 is driven and rotated by a fixed amount each time the seedling stand 6 reaches the stroke end, and the pine-shaped seedlings W are moved upward. A plurality of chains 43 with protrusions for fastening and transferring are interlocked and connected to the belt 42 by a transmission chain 44 so as to rotate together with the belt 42,
Then, each time the seedling stand 6 reaches the stroke end, the pine-shaped seedlings W are moved between the belt 42 and the chain 43.
The structure is such that the seedlings are fed to the side of the seedling outlet 39 while being held between the two.

In carrying out the present invention, the specific structure for interlocking and connecting the lid body 40 and the planting claws 7 can be modified in various ways.

For example, as shown in FIG.
The link 46 pivotally attached to the horizontal shaft 41 may be pivotally connected to the swing arm 41a attached to the horizontal shaft 41.

Further, the specific structure of the lid body 40 can be changed in various ways, such as opening and closing the lid body 40 by sliding the lid body 40.

[Brief explanation of the drawing]

Fig. 1 is a side view of the riding rice transplanter, Fig. 2 is a schematic plan view showing the transmission system, Fig. 3 is a cross-sectional plan view of the fixed position stop clutch mechanism, Fig. 4 is a side view of the mechanism,
Figures 5 and 6 are a partially cutaway side view showing the planting claw attachment part, Figure 7 is a partially cutaway exploded rear view showing the lid attachment part, and Figure 8 is a seedling feeding structure. The schematic rear view shown in FIG. 9 is a side view of another embodiment. 7... Planting claw, 22... Fixed position stop clutch mechanism, 39... Seedling extraction port, 40... Lid body, 42...
Interlocking rod.

Claims (1)

[Claims for Utility Model Registration] A plurality of planting claws 7 are provided to plant the seedlings taken out from the seedling take-out port 39 in the field as they circulate up and down, and a plurality of planting claws 7 are driven to drive the planting claws 7. This seedling planting device is provided with a plurality of fixed position stopping clutch mechanisms 22 that are divided into groups and stopped only at a specific phase, and each of the plurality of seedling take-out ports 39 is connected to a seedling-planting device that prevents seedlings from dropping. A plurality of lids 40 are provided so as to be openable and closable, and each of the lids 40 is
It drives the planting claw 7 corresponding to the seedling take-out port 39 that closes to the closed position when the planting claw 7 is in the specific phase, and to the open position when the planting claw 7 is in the seedling take-out phase. A seedling planting device characterized by being interlocked and connected so that it can be opened and closed. Practical use characterized in that a connecting rod 42 is provided which pivots the lid body 40 so that it can swing freely to open and close, and which pushes and pulls the lid body 40 to open and close it in accordance with the vertical circulation operation of the planting claws 7. A seedling planting device as set forth in the scope of patent claims.