JPH08214634A - Transplanter for planting seedling in plural rows - Google Patents

Abstract

PURPOSE: To obtain the plural row-planting transplanter capable of freely controlling distances between planting rows and simple in the structure. CONSTITUTION: In a plural row-planting transplanter having plural seedling- feeding devices 8 provided with laterally transferring devices for transferring seedling trays 7 in the lateral direction and with longitudinally transferring devices 26 for transferring the seedling trays in the longitudinal direction, and plural planting devices for planting seedlings fed from the seedling-feeding devices 8 in a field, the plural seedling-feeding devices 8 are connected to each other with connecting means 15 capable of controlling lateral distances between the plural seedling-feeding devices, and the laterally transferring device 19 is installed on one of the plural seedling-feeding devices 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter for multi-row planting.

[0002]

2. Description of the Related Art As a multi-row planting and transplanting machine, for example, one described in JP-A-4-30702 is known. In this conventional vegetable transplanting machine, a pair of left and right transplanting section mission cases are slidably attached to a machine frame.
Then, a transplanting device transmission case is projected rearward from each planting part mission case, and one set of transplanting devices is provided on one side of the rear part. This vegetable transplanter is equipped with a pair of left and right seedling mounts for each row, and each seedling mount is supported by the support frame fixed to the transplanter transmission case and the rails provided on the front mission case so that it can slide in the left and right directions. Has been done. The entire transplant unit including the transplant device, the seedling table, etc. is individually moved in the left-right direction along the support pipe by the inter-row adjusting lever to adjust the inter-row spacing. In order to prevent the seedling stands from interfering with each other,
Even when one of the transplanting devices is stopped, both seedling mounting tables are configured to continue the lateral movement operation.

[0003]

In the above-mentioned conventional apparatus, the pair of left and right seedling mounting tables and the transplanting device are driven by independent driving devices so that the spacing between the planting lines can be adjusted. The drive system was complicated, maintenance was difficult, and the cost was high.

Therefore, an object of the present invention is to provide a multi-row planting and transplanting machine having a simple structure in which the spacing between the planting rows can be adjusted.

[0005]

In order to achieve the above object, the present invention has taken the following means. That is, the feature of the present invention is that a plurality of seedling feeding devices provided with a lateral feeding device that feeds the seedling tray in the horizontal direction and a vertical feeding device that feeds the seedling tray in the vertical direction, and the seedlings fed from the seedling feeding device in the field. In a multi-row planting and transplanting machine having a plurality of planting devices to be planted in, the plurality of seedling supply devices are connected by a connecting means that can adjust the mutual lateral spacing, the transverse feeding device, a plurality of It is located in one of the seedling feeding devices of.

[0006]

In accordance with the present invention, the lateral spacing between the plurality of implanting devices is adjusted to accommodate the spacing between the implants. Corresponding to the adjustment of the planting device, the lateral spacing of the seedling feeding device is also adjusted. The lateral spacing of the seedling feeder is adjusted by the connecting means. Since the plurality of seedling supply devices are connected by the connecting means, when the lateral feeding device provided in one seedling supply device laterally moves the seedling supply device, the other seedling supply devices also connect the connecting means. Interlocked through.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 2 and 3 show a riding-type two-row vegetable transplanter, which is a tractor 1 and a transplanting device 3 mounted on the rear part of the tractor 1 via a parallel link mechanism 2 so as to be able to move up and down.
Consists of

The transplant device 3 has a machine frame 4 which is rectangular in a plan view, and the front portion of the machine frame 4 is connected to the parallel link mechanism 2. A power receiving device 5 is provided at the center of the front part of the machine frame 4 in the left-right direction (lateral direction).
The power is transmitted from the PTO shaft on the tractor side via the transmission shaft 6. A seedling feeding device 8 for feeding the cell seedling tray 7 to the machine frame 4 in the lateral direction (left-right direction) and the vertical direction (direction orthogonal to the lateral direction), and the cell seedling tray 7 mounted on the seedling feeding device 8. A pair of right and left seedling take-out devices 9 for taking out the seedlings from the seedling and a planting device 10 for planting the seedlings taken out from the seedling take-out device 9 in the field are provided respectively.

As shown in FIGS. 1 and 4, each of the seedling feeding devices 8 is composed of left and right side frames 11 and a connecting frame 12 for connecting the side frames 11 and the like, and is inclined in the front-rear direction. There is. The seedling feeding device 8 is supported by a pair of front and rear lower slide rails 13 provided on the machine frame 4 and an upper slide rail 14 arranged above the machine frame 4 so as to be movable in the left-right direction. There is.

As shown in FIG. 1 and FIG. 2, the pair of left and right seedling feeding devices 8 are connected by a connecting means 15 whose lateral distance can be adjusted. In this example,
A pair of connecting links 16 is exemplified as the connecting means 15. The connecting link 16 is formed in an X shape in which the center of the link is rotatably supported. Each link 15
The end portions of are selectively coupled to the plurality of mounting holes 18 of the mounting portions 17 and 17 provided at the facing portions of the seedling supply devices 8 and 8. By selecting this mounting hole 18, the lateral gap between the pair of left and right seedling feeding devices 8 can be adjusted, and the pair of seedling feeding devices 8 are rigidly coupled. Therefore, the pair of seedling supply devices 8 can be integrally moved in the left-right direction.

One of the pair of seedling feeders 8 is provided with a lateral feed device 19. The lateral feed device 19 has a lateral feed drive device 20 provided on the machine frame 4. The drive device 20 has an output shaft 21 protruding in the lateral direction. Power is transmitted from the power receiving device 5 to the drive device 20 so that the output shaft 21 can be intermittently rotated. One end of a feed shaft 22 is coupled to the output shaft 21 so as to be integrally rotatable and axially movable. The other end of the feed shaft 22 is supported by a bearing 23 provided on the machine frame 4. The bearing 23 is fixed to the machine frame 4 so that when the distance between the seedling feeding devices 8 is changed by the connecting means 15, the mounting position can be changed accordingly.

An endless spiral groove 24 is formed on the feed shaft 22 over a predetermined length, and a moving bracket 25 that engages with the spiral groove 24 is fitted on the feed shaft 22. The moving bracket 25 is fixed to the connecting frame 12 of the seedling feeding device 8. By intermittently rotating the feed shaft 22, the seedling feeding device 8 is movable laterally at a predetermined pitch. This feed pitch is the lateral pot interval of the cell seedling tray 7. The seedling supply device 8 is reciprocally movable within the range where the spiral groove 24 is provided.

When one of the seedling feeding devices 8 is fed laterally by the lateral feeding device 19, the other seedling feeding device 8 is fed.
Are linked together by the connecting means 15 and thus are interlocked. Therefore, unlike the conventional case, it is not necessary to provide an independent lateral feeding device for the other seedling feeding device, and the structure is simplified.

The seedling feeding device 8 is provided with a vertical feeding device 26 that feeds the cell seedling trays 7 by one pitch in the vertical direction. The vertical feed device 26 has a vertical feed drive shaft 27 that is provided in a penetrating shape in the lower portion of the side frame 11, and a vertical feed driven shaft 28 that is provided in an upper portion of the side frame 11 in a laterally penetrating shape. The drive shaft 27 and the driven shaft 28 are provided so as to be immovable in the axial direction with respect to the side frame 11 of the one seedling feeding device 8, but not with respect to the side frame 11 of the other seedling feeding device 8. It is provided so that it can move in any direction.

On the drive shaft 27 and the driven shaft 28, a pair of left and right drive sprockets 29 and a driven sprocket 30 are integrally rotatable for each seedling feeding device 8. And each sprocket 29, 30 of one seedling supply device 8
Is provided so as to be immovable in the axial direction with respect to each shaft 27, 28, but each sprocket 29, 3 of the other seedling feeding device 8 is
0 is provided so as to be movable in the axial direction with respect to the shafts 27 and 28.

An endless chain 31 is wound around the drive sprocket 29 and the driven sprocket 30. Engagement pins 32 are provided on the chain 31 so as to project laterally at a predetermined pitch. The pot portion of the cell seedling tray 7 can be engaged with the engagement pin 32. A longitudinal feed drive device 33 for rotating the drive shaft 27 by a predetermined angle is provided in one seedling supply device 8. This vertical feed drive device 3
3 is a ratchet wheel 35 provided on the drive shaft 27 via a one-way clutch 34, and the wheel 3
It has a link mechanism 36 for rotating 5 by a predetermined angle and a swing mechanism 37 for swinging the link mechanism 36.

The swinging mechanism 37 includes one seedling feeding device 8
The rotary shaft 38 is rotatably provided between the side frames 11, and a biasing arm 39 is projectingly provided on the rotary shaft 38. The biasing arm 39 includes a gas damper or a spring (not shown). It is urged in one direction by urging means such as. A pair of left and right swing arms 40 is fixed to the rotary shaft 38, and a cam follower 41 is provided at the tip of each arm 40.

On the other hand, a pair of left and right cams 42 are fixed to the feed shaft 22 of the transverse feed device 19. The cam 42 and the cam follower 41 form the seedling feeding device 8
Are provided at positions that can be engaged when the left and right stroke ends are reached. Then, the seedling feeding device 8 is fed laterally at a predetermined pitch by the lateral feeding device 19, and when the stroke end thereof is reached, the one cam 42 and the cal follower 41 are at the same position, and the cam follower 4 is moved.
1 is pushed by the rotating cam 42 to move the swing arm 4
0 swings against the biasing means to rotate the rotary shaft 38 by a predetermined amount. This rotation is transmitted to the ratchet wheel 35 via the link mechanism 36, and the wheel 35 rotates a predetermined amount to rotate the drive shaft 27, rotate the drive sprocket 29, and move the chain 31 a predetermined pitch. This predetermined pitch is the vertical pitch of the seedling pots of the cell seedling tray 7.

When the seedling feeding device 8 is fed laterally in the opposite direction from the stroke end by one pitch, the engagement between the cam 42 and the cam follower 41 is released, and the rotating shaft 38 is returned to its original position by the urging means. The rotation is transmitted to the ratchet wheel 35 via the link mechanism 36.
The reverse rotation of the wheel 35 is not transmitted to the drive shaft by the one-way clutch 34.

The seedling take-out device 9 is provided corresponding to the seedling supply device 8 and takes out the seedlings grown in the seedling pot of the cell seedling tray 7 by the take-out claws 43 which swing and rotate. The seedling take-out device 9 is configured to be driven by the power from the power receiving device 5. The seedling take-out device 9 is provided on the machine frame 4 so that the mounting position can be changed in the left-right direction.

The planting device 10 receives the seedlings taken out by the seedling taking-out device 9 and plantes them in the field, and has a planting cylinder 44 that swings and rotates. The planting device 10 is configured to be driven by the power from the power receiving device 5. The planting device 10 is provided on the machine frame 4 so that the mounting position can be changed in the left-right direction. According to the embodiment having the above-mentioned configuration, when changing the spacing of the planting strips, the machine frame mounting position is adjusted so that the lateral spacing between the planting device 10 and the seedling extracting device 9 becomes the spacing of the planting strips. . And
The seedling supply device 8 also adjusts the attachment position of the connecting means 15 so that the distance between the rows is set.

The present invention is not limited to the above-mentioned embodiment, and, for example, the concrete constitution of the connecting means is not limited to the X-type link, and the adjacent seedlings are supplied such as cylinders and screw means. Any means may be used as long as the distance between the devices can be adjusted and the devices can be moved integrally.

[0023]

According to the present invention, since the structure is simple, the maintenance is simple and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a plan development view of a main part of an embodiment.

FIG. 2 is an overall plan view of the embodiment.

FIG. 3 is a front view of FIG.

FIG. 4 is a front view of a main part.

[Explanation of symbols]

 7 Seedling tray 8 Seedling supply device 10 Planting device 15 Connecting means 19 Horizontal feed device 26 Vertical feed device

Claims (1)

[Claims] 1. A plurality of seedling feeding devices provided with a lateral feeding device for feeding a seedling tray in a horizontal direction and a vertical feeding device for feeding a seedling tray in a vertical direction,
In a multiple-row planting and transplanting machine having a plurality of planting devices for planting seedlings supplied from the seedling supply device in a field, the plurality of seedling supply devices are connection means capable of adjusting mutual lateral intervals. The multi-row planting and transplanting machine, wherein the transverse feeding device is provided in one of the plurality of seedling supplying devices.