JP6855336B2 - Rice transplanter - Google Patents

Description

The present invention relates to a transplanter for planting seedlings in a field.

Conventionally, the transplanters disclosed in Patent Documents 1 and 2 are known.
The transplanting machine disclosed in Patent Document 1 includes a machine having a transplanting portion for planting seedlings in a field, wheels provided on the machine, and a container mounting table on which a container for accommodating seedlings is placed. The transplanting machine disclosed in Patent Document 2 includes a machine having a transplanting portion for planting seedlings in a field, wheels provided on the machine, and a stand capable of supporting the machine on the ground with the wheels floating. ..

Japanese Unexamined Patent Publication No. 2015-89343 Japanese Unexamined Patent Publication No. 2015-53901

The container mounting table included in the transplanter disclosed in Patent Document 1 is a table provided exclusively for mounting a container. On the other hand, the stand provided in the transplanter disclosed in Patent Document 2 is provided exclusively for supporting the machine. That is, in the transplanters disclosed in Patent Documents 1 and 2, the member supporting the container (container mounting stand) and the member supporting the machine body (stand) are provided as dedicated members, and other members. It could not be used for the purpose.

Therefore, an object of the present invention is to provide a transplanter capable of using both a member for supporting a container for accommodating seedlings and a member (stand) for supporting an airframe.

The transplanting machine according to one aspect of the present invention can support the machine having a transplanting portion for planting seedlings in a field, wheels provided on the machine, and the machine on the ground with the wheels floating. A removable stand, a mounting portion on which the removed stand can be mounted by projecting upward from the machine body, a chair provided on the side of the machine body on which an operator can sit, and a chair seated on the chair. The deck is provided at the feet of the worker, and the mounting portion is provided between the machine body and the chair and is located on the front side of the chair, and the stand can be inserted into the deck. It has a cylinder that is erected on top, and the stand has a locking portion that can lock a container that accommodates seedlings in a state of being mounted on the mounting portion.

Further, the chair is arranged so that the worker can sit on the chair diagonally forward facing the machine body side, and the deck is located at the feet of the worker sitting on the chair diagonally forward and the mounting portion. Is located on the front side of the worker seated on the chair facing diagonally forward.
Further, the stand is provided with a ground portion abutting the ground while supporting the body on the ground, is mounted to the mounting portion toward the ground portion upward, the ground portion of the disc one The shape is such that the portion is cut out in a straight line, and the outer surface of the container can be brought into contact with the cutout portion .
Further, the mounting portion has a pin which penetrates into the cylindrical body and the stand.

Further, the locking portion has a claw portion that can be inserted into the opening for the handle of the container.
Further, the locking portion can lock the container by inclining the outlet for taking out the seedlings so as to face the chair.

According to the above-mentioned transplanter, by removing the stand supporting the machine body and mounting it on the mounting portion, it can be used as a member for locking (supporting) the container for accommodating the seedlings. That is, the member that supports the container and the member that supports the airframe can be used in combination.

It is a top view of the transplant part. It is a side view of the transplant part. It is a schematic front view of a transplant part. It is a perspective view of the planting device. It is a perspective view which shows the opening / closing mechanism and the interlocking mechanism. It is a side view which shows the opening / closing mechanism and the support mechanism. It is a front view which shows the angle adjustment of a planting tool. It is a top view of the seedling supply device. It is a front sectional view of the seedling supply device. It is a perspective view which shows the support structure of a chair. It is a front perspective view which shows the support mechanism of a chair. It is a front perspective view which shows the support mechanism of a chair. It is a perspective view which shows the chair orientation change mechanism. It is a rear perspective view which shows the peripheral structure of an elevating step and a foot rest plate. It is a rear perspective view which shows the peripheral structure of the elevating step and the state which the stand is attached to the attachment part. It is a perspective view which shows the lower part of the stand in the state of being attached to the attachment part. It is a perspective view which shows the state which the container is locked with the locking part of the stand mounted on the mounting part. It is a side view of a transplanter. It is a top view of a transplanter.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings as appropriate.
18 and 19 show a transplanter 1 for planting seedlings in a field (ridge) while traveling in the field. FIG. 18 is a side view of the transplanter 1, and FIG. 19 is a plan view of the transplanter 1.
In the embodiment of the present invention, the traveling direction of the transplanter 1 at the time of planting seedlings (direction of arrow A1 in FIGS. 18 and 19) is forward, and the opposite side of the traveling direction (direction of arrow A2 in FIGS. 18 and 19) is backward. The left side (direction of arrow B1 in FIG. 19) in the direction of travel will be described as the left side, and the right side (direction of arrow B2 in FIG. 19) will be described as the right side in the direction of travel.

Further, as shown in FIG. 19, the horizontal direction, which is a direction orthogonal to the front-rear direction K1, will be described as the machine body width direction (width direction of the machine body 2) K2. The direction from the central portion to the right portion or the left portion in the width direction of the transplanter 1 (airframe 2) will be described as the outer side of the machine body (outer side in the width direction of the machine body). In other words, the outer side of the machine body is the direction K2 in the width direction of the machine body and away from the center in the width direction of the transplanter 1 (body 2). The direction opposite to the outside of the fuselage will be described as the inside of the fuselage (inside in the width direction of the fuselage). In other words, the inside of the machine is the direction K2 in the width direction of the machine and is closer to the center in the width direction of the body 2.

As shown in FIGS. 18 and 19, the transplanter 1 has a machine body 2. A prime mover (engine) E1 is mounted on the rear part of the airframe 2. Further, the airframe 2 has a mission case M1 to which power from the prime mover E1 is transmitted. Further, at the rear part of the machine body 2, a steering handle 5 that is gripped by an operator when walking the transplanter 1 is provided.
The transplanter 1 has front wheels (wheels) 3L and rear wheels (wheels) 4L arranged on the left side of the airframe 2, and front wheels (wheels) 3R and rear wheels (wheels) 4R arranged on the left side of the airframe 2. .. The front wheels 3L, 3R and the rear wheels 4L, 4R support the aircraft 2 so that it can travel.

A front wheel support arm 6L is provided on the left side of the airframe 2. The upper portion of the front wheel support arm 6L is rotatably supported by the airframe 2 around a horizontal axis (an axis extending in the body width direction K2). The front wheel 3L is rotatably attached to the lower part of the front wheel support arm 6L.
A front wheel support arm 6R is provided on the right side of the airframe 2. The upper portion of the front wheel support arm 6R is rotatably supported by the airframe 2 around the horizontal axis. The front wheels 3R are rotatably attached to the lower part of the front wheel support arm 6R.

A wheel support 7L is provided on the left side of the airframe 2. The upper portion of the wheel support 7L is rotatably supported by the airframe 2 around the horizontal axis. A rear wheel 4L is rotatably attached to the lower part of the wheel support 7L.
A wheel support 7R is provided on the right side of the airframe 2. The upper portion of the wheel support 7R is rotatably supported by the airframe 2 around the horizontal axis. The rear wheel 4R is rotatably attached to the lower part of the wheel support 7R.

The front wheels 3L and 3R are wheels that rotate freely, and the rear wheels 4L and 4R are drive wheels that are rotationally driven by transmitting power from the mission case M1.
The front wheel support arms 6L and 6R and the wheel supports 7L and 7R can swing up and down, and can be driven to swing by a hydraulic cylinder (not shown). As a result, the front wheels 3L and 3R and the rear wheels 4L and 4R move up and down relative to the aircraft 2. By simultaneously raising and lowering the front wheels 3L and 3R and the rear wheels 4L and 4R with respect to the body 2, the body 2 moves up and down with respect to the ground.

Further, stands 8L and 8R capable of supporting the front part of the machine body 2 can be attached to the lower part of the front part of the machine body 2. The stand 8L supports the left side of the front portion of the machine body 2. The stand 8R supports the right side of the front part of the machine body 2. The stands 8L and 8R can support the aircraft 2 on the ground with the wheels (front wheels 3L, 3R and rear wheels 4L, 4R) floating in cooperation with the rear stand (not shown) that supports the rear part of the aircraft 2. is there.

When the stands 8L and 8R are not in use (when the transplanter 1 is planted, moved, etc.), they are removed from the lower part of the machine 2 and mounted on the mounting portions 9L and 9R provided on the machine 2. .. The mounting portion 9L is provided so as to project upward on the deck 10L provided on the left side of the machine body 2. The mounting portion 9R is provided on the deck 10R provided on the right side of the machine body 2 so as to project upward. The decks 10L and 10R are the parts on which the worker rides, and the parts on which the feet of the worker who plant the seedlings are placed.

The rear stand folds when not in use.
The transplanter 1 has a transplanting unit 11 for planting seedlings in a field and a seedling supply unit 12 for supplying seedlings to the transplanting unit 11. The transplant portion 11 is provided at the front portion of the machine body 2. The seedling supply unit 12 is provided above the machine body 2 from the front part to the rear part. The seedling supply unit 12 has a first seedling supply device 12L provided on the left side of the machine body 2 and a second seedling supply device 12R provided on the right side of the machine body 2.

A first chair (chair) 13L is provided on one side (left side) of the machine body 2, and a second chair (chair) 13R is provided on the other side (right side) of the machine body 2. The first chair (chair) 13L is arranged on the side (left side) of the first seedling supply device 12L, and is provided on the upper side of the deck 10L. The second chair 13R is arranged on the side (right side) of the second seedling supply device 12R, and is provided on the upper side of the deck 10R.

The first chair 13L and the second chair 13R are chairs on which a worker who supplies seedlings to the seedling supply unit 12 sits. The rice transplanter 1 is a passenger-type rice transplanter 1 in which an operator sitting on the first chair 13L and / or the second chair 13R can perform operations such as steering during planting work. When a worker sits on both the first chair 13L and the second chair 13R, for example, the worker of the first chair 13L supplies the seedlings to the first seedling supply device 12L, and the worker of the second chair 13R is the first. 2 Seedlings are supplied to the seedling supply device 12R.

Next, the first seedling supply device 12L and the second seedling supply device 12R will be described with reference to FIGS. 8 and 9. Since the first seedling supply device 12L and the second seedling supply device 12R have the same structure, the first seedling supply device 12L will be described, and the description of the second seedling supply device 12R will be omitted.
The first seedling supply device 12L has seedling supply cups 14A and 14B in which seedlings are supplied from above by an operator. As shown in FIG. 9, the seedling supply cups 14A and 14B have a tubular cup body 15 having a vertical opening and a bottom lid 16 that rotatably closes the bottom opening of the cup body 15. The seedling supply cups 14A and 14B can hold the seedlings with the bottom lid 16 closed, and can discharge the seedlings downward when the bottom lid 16 is opened.

As shown in FIG. 8, the seedling supply cups 14A and 14B are arranged in a loop at regular intervals so as to exhibit a long oval shape in the front-rear direction K1 in a plan view. The seedling supply cups 14A and 14B are movable along this oval-shaped cup arrangement path (transfer path).
The seedling supply cups 14A and 14B are the first cup 14A for dropping and discharging seedlings at the first position X1 on the outer side of the machine body at the front part of the cup placement path, and the seedling supply cups 14A and 14B on the inner side of the machine body at the front part of the cup placement path. The second cup 14B, which drops and discharges the seedlings at the second position X2, is arranged alternately along the cup arrangement path.

In the first seedling supply device 12L, the seedling supply cups 14A and 14B are orbitally transferred along the cup arrangement path in the direction indicated by the arrow Y1. In the second seedling supply device 12R, the seedling supply cups 14A and 14B are orbitally transferred along the cup arrangement path in the direction indicated by the arrow Y2.
The opening of the bottom lid 16 is restricted by the regulating member, and when the first cup 14A is located at the first position X1 and the second cup 14B is located at the second position X2, the bottom lid 16 is separated from the regulating member and opened.

The first seedling supply device 12L includes a drive sprocket 18 arranged at the rear portion on the inner peripheral side of the cup arrangement path, a driven sprocket 19 arranged at the front portion on the inner peripheral side of the cup arrangement path, and these sprockets 18, 19. It has an endless transfer chain 20 wound over. A connecting portion 21 is provided at the lower part of the cup body 15, and the connecting portion 21 is connected to the transfer chain 20.

Therefore, the transfer chain 20 is driven by the drive sprocket 18, so that the seedling supply cups 14A and 14B are intermittently transferred.
Seedling guides 22 are provided at the first position X1 and the second position X2. The seedling guide 22 receives the seedlings discharged from the seedling supply cups 14A and 14B and guides them downward.
Next, the transplant portion 11 will be described in detail with reference to FIGS. 1 to 7.

As shown in FIGS. 1 and 2, the transplantation unit 11 has a transplantation frame 23.
The transplant frame 23 has a main frame 24, a first mounting member 25L, a second mounting member 25R, and a plurality of frame materials (upper frame material 27, lower frame material 28, front frame material 29).
The main frame 24 is attached to the front portion of the machine body 2. The central portion of the main frame 24 in the width direction K2 coincides with the central portion of the main frame 2 in the width direction K2. The first mounting member 25L is fixed to the lower part of the left side of the main frame 24 and is fixed to the front part of the deck 10L. The second mounting member 25R is fixed to the lower part of the right side of the main frame 24 and is fixed to the front part of the deck 10R.

The rear portion 27a of the upper frame material 27 extends forward from the upper portion of the main frame 24. The front portion 27b of the upper frame member 27 extends downward from the front end of the rear portion 27a in an inclined direction that shifts downward as it goes forward. The lower frame material 28 is fixed to the machine body 2 below the main frame 24 and extends forward from the body body 2. The upper frame material 27 and the lower frame material 28 are located at the center of the body in the width direction K2.

The front frame material 29 is located at the front end portion of the upper frame material 27 and the lower frame material 28, and extends in the body width direction K2. The front end portions of the upper frame member 27 and the lower frame member 28 are fixed to the central portion of the front frame member 29.
As shown in FIGS. 1 and 2, the transplant portion 11 is provided with a drive shaft 31 that is rotationally driven around a horizontal axis. The drive shaft 31 is formed of, for example, a hexagonal bar. The drive shaft 31 is provided so as to extend in the body width direction K2 in front of the lower part of the main frame 24. A shaft support member 32 is provided at the center of the main frame 24 in the body width direction K2. The drive shaft 31 is inserted through the shaft support member 32, and its central portion is rotatably supported by the shaft support member 32 via a bearing member.

The power from the transmission case M1 is transmitted to the drive shaft 31 via the power transmission mechanism 34 to the central portion in the axial direction. One end (left end) of the drive shaft 31 is located in front of the first mounting member 25L. The other end (right end) of the drive shaft 31 is located in front of the second mounting member 25R.
As shown in FIGS. 1, 2 and 3, the transplanting portion 11 has a first planting device 36L and a second planting device 36R. The first planting device 36L is arranged in front of the left side of the main frame 24 and on the left side of the upper frame material 27 and the lower frame material 28. The second planting device 36R is arranged in front of the right side of the main frame 24 and on the right side of the upper frame material 27 and the lower frame material 28.

As shown in FIG. 4, the first planting device 36L has a plurality of planting tools (first planting tool 37L, third planting tool 38L) for planting seedlings in the field. The plurality of planting tools are supported by the first transmission body 39L so as to be able to move up and down via the first elevating mechanism 40L and the first support 41L. The first planting tool 37L and the third planting tool 38L move up and down at the same time, the seedlings are supplied at the ascending position, the seedlings are lowered while holding the seedlings, and the seedlings are rushed into the field (ridge) and opened at the descending position. As a result, a planting hole is formed in the field, and seedlings are released and planted in the planting hole.

The second planting device 36R also has a plurality of planting tools (second planting tool 37R, fourth planting tool 38R) for planting seedlings in the field. The plurality of planting tools are supported by the second transmission body 39R so as to be able to move up and down via the second elevating mechanism 40R and the second support body 41R. The second planting tool 37R and the fourth planting tool 38R also operate in the same manner as the first planting tool 37L and the third planting tool 38L, and seedlings are planted in the field. Further, the second planting tool 37R and the fourth planting tool 38R are lowered when the first planting tool 37L and the third planting tool 38L are raised.

In the present embodiment, the transplanter 1 is a four-row planting transplanter in which two seedlings planted by the first planting device 36L and two seedlings planted by the second planting device 36R are in the front-rear direction. It is a transplanter for staggered planting that is misaligned with K1.
As shown in FIGS. 1 and 2, the first transmission body 39L and the second transmission body 39R are devices for transmitting the driving force of the drive shaft 31. The first transmission body 39L is arranged on one end side of the drive shaft 31. The second transmission body 39R is arranged on the other end side of the drive shaft 31 so as to face the first transmission body 39L in the body width direction K2.

The first transmission body 39L has a support case 43L and a transmission mechanism 44L provided on the support case 43L. In the support case 43L, the base portion (base portion of the first transmission body 39L) 42L is fixed to the front surface of the first mounting member 25L by bolts or the like, and the support case 43L has a forward protruding shape from the first mounting portion 25L. Further, the base portion 42L is attached to the first attachment member 25L so that the position can be changed in the body width direction K2 (for example, the position can be changed to two positions). Therefore, the position of the first transmission body 39L (first planting device 36L) can be changed in the axial direction of the drive shaft 31 at one end of the drive shaft 31.

The transmission mechanism 44L transmits the power of the drive shaft 31 to the first elevating mechanism 40L. The transmission mechanism 44L is rotatably provided on a first sprocket 46 attached to one end of the drive shaft 31 via a bearing member 45 and a transmission shaft 49 provided on the front portion of the support case 43L. It has a sprocket 47 and a chain 48 wound around the first sprocket 46 and the second sprocket 47. The bearing member 45 can rotate integrally with the drive shaft 31 and can move in the axial direction.

The tip end side of the support case 43L (first transmission body 39L) is connected to the left side portion of the front frame member 29 by the first connecting member 50L. The rear portion of the first connecting member 50L is fixed to the tip end side of the support case 43L. The front portion of the first connecting member 50L is attached to the mounting stay 35L fixed to the front frame member 29 by bolts or the like so that the position can be adjusted in the body width direction K2.

Since the second transmission body 39R has the same configuration as the first transmission body 39L, the description thereof will be omitted. The second transmission body 39R also has a support case 43R and a transmission mechanism 44R provided on the support case 43R. The support case 43R has a base portion (base portion of the second transmission body 39R) 42R fixed to the front surface of the second mounting member 25R so as to be repositionable in the body width direction K2 by bolts or the like. Therefore, the position of the second transmission body 39R (second planting device 36R) can be changed in the axial direction of the drive shaft 31 at the other end of the drive shaft 31. The transmission mechanism 44R transmits the power of the drive shaft 31 to the second elevating mechanism 40R. The transmission mechanism 44R is configured in the same manner as the transmission mechanism 44L.

The tip end side of the support case 43R (second transmission body 39R) is connected to the left side portion of the front frame member 29 by the second connecting member 50R. The rear portion of the second connecting member 50R is fixed to the tip end side of the support case 43R. The front portion of the second connecting member 50R is attached to the mounting stay 35R fixed to the front frame member 29 by bolts or the like so that the position can be adjusted in the body width direction K2.

That is, the frame body is composed of the first connecting member 50L, the second connecting member 50R, the main frame 24, the first mounting member 25L, the second mounting member 25R, the support case 43L, the support case 43R, and the front frame material 29. There is. As a result, the first planting device 36L and the second planting device 36R are arranged in the frame and protected.
As shown in FIG. 1, the first elevating mechanism 40L and the second elevating mechanism 40R are arranged side by side in the direction along the drive shaft 31 (machine width direction K2). The first elevating mechanism 40L is arranged in the front part of the first transmission body 39L toward the inside of the machine. The first elevating mechanism 40L includes a first rotation case 51 rotatably supported by a support case 43L via a transmission shaft 49, and a second rotation rotatably supported on the free end side of the first rotation case 51. It has a case 52 and. The first support 41L is supported on the free end side of the second rotating case 52, and the first planting tool 37L and the third planting tool 38L are attached to the first support 41L. The rear portion of the first support 41L is suspended (upwardly urged) by a spring (not shown).

In the first elevating mechanism 40L, the first rotating case 51 is rotationally driven by the transmission shaft 49, and the second rotating case 52 is in the opposite direction to the first rotating case 51 in conjunction with the rotation of the first rotating case 51. A power transmission mechanism is provided in the first rotating case 51 and the second rotating case 52 so as to rotate in the first rotating case 51 and the second rotating case 52. When the first rotating case 51 is rotationally driven, the first support 41L moves up and down, and the first planting tool 37L and the third planting tool 38L move up and down accordingly. That is, the first elevating mechanism 40L is supported by the first transmission body 39L, and the power of the first transmission body 39L raises and lowers the first planting tool 37L and the third planting tool 38L.

The second elevating mechanism 40R is arranged in the front part of the second transmission body 39R toward the inside of the machine. The second elevating mechanism 40R includes a first rotation case 51 rotatably supported by the support case 43R via a transmission shaft 49, and a second rotation rotatably supported on the free end side of the first rotation case 51. It has a case 52 and. The second support 41R is supported by the second rotating case 52, and the second planting tool 37R and the fourth planting tool 38R are attached to the second support 41R.

The second elevating mechanism 40R also has the same configuration as the first elevating mechanism 40L and operates in the same manner. In the second elevating mechanism 40R, the second support 41R moves up and down by rotationally driving the first rotating case 51, whereby the second planting tool 37R and the fourth planting tool 38R move up and down. That is, the second elevating mechanism 40R is supported by the second transmission body 39R and raises and lowers the second planting tool 37R and the fourth planting tool 38R by the power of the second transmission body 39R.

As shown in FIG. 4, the first support 41L is arranged on the side of the first elevating mechanism 40L toward the inside of the machine. The first support 41L connects the first member 53L that supports the first planting tool 37L, the second member 54L that supports the third planting tool 38L, and the first member 53L and the second member 54L. It has a plurality of connecting members 55L. The first member 53L and the second member 54L are arranged at intervals in the body width direction K2. The plurality of connecting members 55L are arranged between the first member 53L and the second member 54L. The first planting tool 37L is arranged on the outer side of the machine body at the rear of the first member 53L. The third planting tool 38L is arranged on the rear side of the second member 54L toward the inside of the machine.

The second support 41R will be described with reference to FIG. 4. The second support 41R is arranged on the side of the second elevating mechanism 40R toward the inside of the machine. The second support 41R connects the first member 53R that supports the second planting tool 37R, the second member 54R that supports the fourth planting tool 38R, and the first member 53R and the second member 54R. It has a plurality of connecting members 55R. Since the configurations of the first member 53, the second member 54, and the plurality of connecting members 55R are the same as those of the first support 41L, the description thereof will be omitted. The second planting tool 37R is arranged on the outer side of the fuselage at the rear of the first member 53R. The fourth planting tool 38R is arranged on the rear side of the second member 54R toward the inside of the machine.

As shown in FIG. 6, the first planting tool 37L is supported by the first member 53L of the first support 41L so as to be openable and closable back and forth by the first support mechanism 56L. With reference to FIG. 6, the second planting tool 37R, the third planting tool 38L, and the fourth planting tool 38R will also be described. The second planting tool 37R is the first member 53R of the second support 41R. It is supported by a second support mechanism 56R so that it can be opened and closed back and forth. The third planting tool 38L is supported by the second member 54L of the first support 41L by a third support mechanism 57L so as to be openable and closable in the front-rear direction. The fourth planting tool 38R is supported by the second member 54R of the second support 41R so as to be openable and closable back and forth by the fourth support mechanism 57R.

Since the structures of the first planting tool 37L to the fourth planting tool 38R are the same, the structure of the first planting tool 37L will be described as a representative, and the second planting tool 37R to the fourth planting tool 38R will be described. The description is omitted.
As shown in FIGS. 5 and 6, the first planting tool 37L has a first component 58 on the front side and a second component 59 on the rear side. When the first planting tool 37L is closed (the first component 58 and the second component 59 overlap each other in the front-rear direction K1), the first planting tool 37L has an upward opening shape and a shape that tapers downward in a side view. It is presented. The first planting tool 37L is opened when the first component 58 and the second component 59 are separated from each other in the front-rear direction K1.

The first mounting bracket 61 is fixed to the front side of the upper part of the first component 58. A second mounting bracket 62 is fixed to the rear side of the upper part of the second component 59.
Since the structures of the first support mechanism 56L to the fourth support mechanism 57R are the same, the structure of the first support mechanism 56L will be described as a representative, and the description of the second support mechanism 56R to the fourth support mechanism 57R will be omitted.

As shown in FIGS. 5 and 6, the first support mechanism 56L includes a first swing member 63, a second swing member 64, a first attachment 65, and a second attachment 66. The upper front portion of the first swing member 63 is rotatably supported by the first member 53L of the first support 41L by the pivot axis 67 around the horizontal axis. The upper rear portion of the second swing member 64 is rotatably supported by the first member 53L of the first support 41L by the pivot axis 68 around the horizontal axis. An engaging portion (roller) 69 is provided at the rear portion of the upper portion of the first swing member 63. An open engaging recess 70 is formed in the front portion of the upper portion of the second swing member 64. The engaging portion 69 is inserted into the engaging recess 70 and engaged.

The first fixture 65 has a first plate 65A fixed to the first swing member 63 and a second plate 65B fixed to the first plate 65A. The lower portion of the second plate 65B projects downward from the first plate 65A. A first mounting bracket 61 is attached to the lower portion of the second plate 65B via bolts or the like.
The second fixture 66 has a third plate 66A fixed to the second swing member 64 and a fourth plate 66B fixed to the third plate 66A. The lower part of the fourth plate 66B projects downward from the third plate 66A. A second mounting bracket 62 is attached to the lower portion of the fourth plate 66B via a bolt or the like.

Further, the first support mechanism 56L has a spring 71 that urges the first planting tool 37L in the closing direction.
In FIG. 6, when the first swing member 63 swings back and forth around the pivot 67, the first component 58 swings back and forth and the engaging portion 69 moves up and down accordingly. When the engaging portion 69 moves up and down, the second swing member 64 swings back and forth around the pivot 68, and the second component 59 swings back and forth. As a result, the first planting tool 37L opens and closes back and forth. The second planting tool 37R, the third planting tool 38L, and the fourth planting tool 38R also open and close back and forth in the same operation.

As shown in FIGS. 5 and 6, the first planting device 36L has a first opening / closing mechanism 72L that opens / closes the first planting tool 37L. The second planting device 36R has a second opening / closing mechanism 72R that opens / closes the second planting tool 37R. Since the first opening / closing mechanism 72L and the second opening / closing mechanism 72R have the same configuration, the first opening / closing mechanism 72L will be described, and the description of the second opening / closing mechanism 72R will be omitted.
The first opening / closing mechanism 72L has a cam 73, a cam roller 74, a cam link 75, and an opening / closing rod 76. The cam 73 is provided on the free end side of the second rotation case 52, and rotates with the rotation of the second rotation case 52. The cam 73 has a pressing portion 73a having a large protrusion amount in the out-of-diameter direction and a pressing release portion 73b having a small protrusion amount in the out-of-diameter direction. The cam roller 74 comes into contact with the outer circumference of the cam 73. The upper part of the cam link 75 is rotatably supported by the first member 53L by the pivot axis 78 around the horizontal axis. A cam roller 74 is pivotally supported in the upper and lower parts of the cam link 75. One end of the opening / closing rod 76 is pivotally connected to the lower part of the cam link 75, and the other end of the opening / closing rod 76 is pivotally connected to the lower part of the first swing member 63.

From the front of the top dead center position to the front of the bottom dead center position of the elevating path of the first planting tool 37L, the cam roller 74 is in contact with the pressing release portion 73b, and the first planting tool 37L is closed. When the first planting tool 37L rushes into the field, the cam roller 74 rides on the pressing portion 73a. Then, the cam roller 74 is pressed by the cam 73, and the cam link 75 swings forward around the pivot 78. When the cam link 75 swings forward, the first component 58 is pulled via the opening / closing rod 76 to open the first planting tool 37L.

The second planting tool 37R is also opened and closed by the second opening / closing mechanism 72R in the same operation.
As shown in FIG. 5, the first planting device 36L has a first interlocking mechanism 81L that opens and closes the third planting tool 38L in conjunction with the first opening / closing mechanism 72L. The second planting device 36R has a second interlocking mechanism 81R that opens and closes the fourth planting tool 38R in conjunction with the second opening / closing mechanism 72R. Since the first interlocking mechanism 81L and the second interlocking mechanism 81R have the same configuration, the first interlocking mechanism 81L will be described, and the description of the second interlocking mechanism 81R will be omitted.

As shown in FIG. 5, the first interlocking mechanism 81L has an interlocking link 82, a connecting member 83, and a connecting rod 84. The upper part of the interlocking link 82 is rotatably supported by a second member 54 of the first support 41L by a pivot axis 85 around a horizontal axis. The pivot 85 is provided concentrically with the pivot 78. The lower front portion of the interlocking link 82 is connected to the cam link 75 by a connecting member 83. As a result, the interlocking link 82 swings integrally with the cam link 75. One end of the connecting rod 84 is pivotally connected to the lower part of the interlocking link 82. The other end of the connecting rod 84 is pivotally connected to the first swinging member 63 that swingably supports the first component 58 of the third planting tool 38L.

In the above-mentioned first opening / closing mechanism 72L, the interlocking link 82 swings in conjunction with the front-rear swing of the cam link 75, so that the third planting tool 38L opens / closes via the connecting rod 84.
In the same operation as this, the fourth planting tool 38R is opened and closed by the second interlocking mechanism 81R in conjunction with the opening and closing operation of the second planting tool 37R.
As shown in FIG. 7, the second plate 65B is provided with a plurality of mounting holes (first mounting holes 86a to fourth mounting holes 86d) for fixing the first mounting bracket 61 with bolts. The first mounting hole 86a and the second mounting hole 86b are provided side by side in the body width direction K2. The third mounting hole 86c and the fourth mounting hole 86d are provided side by side in the machine width direction K2 above the first mounting hole 86a and the second mounting hole 86b.

When the first mounting bracket 61 is bolted to the first mounting hole 86a and the second mounting hole 86b, the first component 58 is set to the first mounting posture Z1 shown by the solid line. Further, when the first mounting bracket 61 is bolted to the first mounting hole 86a and the fourth mounting hole 86d, the first component 58 becomes the second mounting posture Z2 indicated by the virtual line. Further, when the first mounting bracket 61 is bolted to the second mounting hole 86b and the third mounting hole 86c, the first component 58 becomes the third mounting posture Z3 shown by the virtual line.

Similarly, the second component 59 can be changed to the first mounting posture Z1, the second mounting posture Z2, and the third mounting posture Z3.
As described above, the first planting tool 37L is attached to the first support mechanism 56L so that the angle can be changed in the body width direction K2 with respect to the vertical direction.
Further, the second planting tool 37R has the same mounting structure as the first planting tool 37L, and is mounted on the second support mechanism 56R so that the angle can be changed in the body width direction K2 with respect to the vertical direction. Further, the third planting tool 38L has the same mounting structure as the first planting tool 37L, and is mounted on the third support mechanism 57L so that the angle can be changed in the body width direction K2 with respect to the vertical direction. Further, the fourth planting tool 38R has the same mounting structure as the first planting tool 37L, and is mounted on the fourth support mechanism 57R so that the angle can be changed in the body width direction K2 with respect to the vertical direction.

By adjusting the angle of the first planting tool 37L to the fourth planting tool 38R and adjusting the positions of the first planting device 36L and the second planting device 36R in the machine width direction K2, the inter-row adjustment can be performed. can do.
As shown in FIG. 3, the first planting device 36L is provided with a first relay guide 87L that guides seedlings to the first planting tool 37L and the third planting tool 38L. Further, the second planting device 36R is provided with a second relay guide 87R for guiding the seedlings to the second planting tool and the fourth planting tool.

The first relay guide 87L includes a first guide 88L that guides the seedlings to the first planting tool 37L and a third guide 89L that guides the seedlings to the third planting tool 38L. The second relay guide 87R includes a second guide 88R that guides the seedlings to the second planting tool 37R and a fourth guide 89R that guides the seedlings to the fourth planting tool 38R.
The first guide 88L is attached to the first member 53L of the first support 41L, and the third guide 89L is attached to the second member 54L of the first support 41L. The second guide 88R is attached to the first member 53R of the second support 41R, and the fourth guide 89R is attached to the second member 54R of the second support 41R.

The planting tool may be extended upward so that the planting tool has a function of a relay guide.
Next, the chairs 13L and 13R and the peripheral structure of the chair will be described in detail mainly with reference to FIGS. 10 to 15 and 18.
First, the support structures of the chairs 13L and 13R will be described with reference to FIGS. 10 to 12 and 18. Although FIGS. 10 to 12 and 18 show the support structure of the first chair 13L, the support structure of the second chair 13R is also the same.

As shown in FIGS. 10 and 18, the chairs 13L and 13R are supported by the wheel supports 7L and 7R. Specifically, the first chair 13L is supported by the wheel support 7L. The second chair 13R is supported by the wheel support 7R.
The wheel supports 7L and 7R each have a transmission case 100.
The transmission case 100 includes a front gear case 100a, a rear gear case 100b, and a transmission shaft case 100c. The front gear case 100a is connected to a rear shaft case 101 projecting outward from the transmission case M1. The rear shaft case 101 contains an output shaft 102 that extracts power from the transmission housed in the mission case M1. The rear gear case 100b is connected to the outer side of the axles of the rear wheels 4L and 4R. The transmission shaft case 100c connects the front gear case 100a and the rear gear case 100b. The transmission shaft case 100c houses a transmission shaft that transmits power from the front gear mechanism housed in the front gear case 100a to the rear gear mechanism housed in the rear gear case 100b. The power of the prime mover E1 is output from the output shaft 102 via the transmission mechanism in the transmission case M1, and the rear wheels 4L, via the transmission mechanism (front gear mechanism, transmission shaft, rear gear mechanism) in the transmission case 100. It is transmitted to the 4R axle. As a result, the rear wheels 4L and 4R are driven by the power of the prime mover E1. The transmission mechanism housed in the transmission case 100 may be a chain transmission mechanism. The transmission case 100 is provided so as to be swingable with respect to the machine body 2. Specifically, the transmission case 100 is provided so as to be swingable around the horizontal axis (around the axis of the output shaft 102) with respect to the machine body 2.

The chairs 13L and 13R are supported by the transmission case 100 by the support mechanism 103. The support mechanism 103 has a support column 104, a bracket 105, a support shaft 106, and a connecting member 107.
The support columns 104 are arranged on the outer side of the rear wheels 4L and 4R. The upper portion of the support column 104 is connected to a chair support plate 108 fixed to the lower surface of the seat portion 13a of the chairs 13L and 13R, and extends downward from the chair support plate 108. A bracket 105 is attached to the lower part of the support column 104. The strut 104 is composed of, for example, a cylindrical pipe.

The bracket 105 has a first side plate 105a, a second side plate 105b, and a connecting portion 105c. The first side plate 105a is arranged on the inside of the machine body of the support column 104, and is located between the rear wheels 4L and 4R and the support column 104. The second side plate 105b is arranged on the outer side of the body of the support column 104 and faces the first side plate 105a. The connecting portion 105c extends in the width direction of the machine body and connects the rear portion of the first side plate 105a and the rear portion of the second side plate 105b. In the case of the present embodiment, the first side plate 105a, the second side plate 105b, and the connecting portion 105c are integrally formed by bending one metal plate.

The bracket 105 is pivotally supported by the transmission case 100. Specifically, the bracket 105 is pivotally supported by the first pivot shaft 141 with respect to the pivot plate 100d provided on the transmission shaft case 100c of the transmission case 100. The pivot plate 100d extends upward from the transmission case 100. The pivot plate 100d includes a first pivot plate 100d1 and a second pivot plate 100d2 arranged so as to face each other. The first pivot plate 100d1 is arranged on the side of the first side plate 105a toward the inside of the aircraft. The second pivot plate 100d2 is arranged on the outer side of the fuselage of the second side plate 105b. The first pivot shaft 141 extends in the width direction of the machine body and penetrates the first side plate 105a, the second side plate 105b, the first pivot plate 100d1, and the second pivot plate 100d2. As a result, the bracket 105 can swing around the first pivot shaft 141 with respect to the transmission case 100.

The support shaft 106 projects laterally from the machine body 2. One end side of the support shaft 106 is fixed to the machine body 2 and extends from the body 2 toward the outside of the body. The support shaft 106 is arranged above and behind the output shaft 102.
The connecting member 107 has an inner plate 107a, an outer plate 107b, and an upper plate 107c. The inner plate 107a is arranged on the inside of the machine body of the support column, and is located between the support column 104 and the rear wheels 4L and 4R. The outer plate 107b is arranged on the outer side of the body of the support column 104 and faces the inner plate 107a. The upper plate 107c connects the upper portion of the inner plate 107a and the upper portion of the outer plate 107b in front of the support column 104.

One end side (front side) of the connecting member 107 is pivotally supported on the other end side (outside side of the machine body) of the support shaft 106. As a result, the connecting member 107 can swing upward or downward around the support shaft 106. The other end side (rear side) of the connecting member 107 is pivotally supported by the bracket 105. Specifically, the other end side of the connecting member 107 is pivotally supported by the second pivot shaft 142 with respect to the bracket 105. The other end side of the connecting member 107 is above the transmission case 100 and is arranged above the pivot plate 100d. The other end side of the inner plate 107a is arranged on the side of the first side plate 105a of the bracket 105 toward the inside of the machine. The other end side of the outer plate 107b is arranged on the outer side of the second side plate 105b of the bracket 105. A tubular body 105d is fixed to the rear portion of the bracket 105, and the second pivot shaft 142 is rotatably supported with respect to the tubular body 105d. The second pivot shaft 142 extends in the width direction of the machine body and penetrates the inner plate 107a, the outer plate 107b, and the tubular body 105d. As a result, the bracket 105 can swing upward or downward around the second pivot shaft 142 with respect to the other end side of the connecting member 107. The second pivot shaft 142 is located above and behind the first pivot shaft 141.

The bracket 105, the connecting member 107, the output shaft 102, the support shaft 106, the first pivot shaft 141, and the second pivot shaft 142 constitute a four-section link mechanism. When the transmission case 100 swings upward or downward around the output shaft 102, the bracket 105 moves upward or downward. Therefore, when the transmission case 100 swings around the output shaft 102, the support column 104 to which the bracket 105 is attached can be raised and lowered without tilting. Therefore, the posture of the worker seated on the chairs 13L and 13R supported by the support column 104 is not impaired. Further, the weight of the worker sitting on the chairs 13L and 13R can be distributed and supported by the first pivot shaft 141 and the second pivot shaft 142 and the like.

As shown in FIG. 13, the transplanter 1 includes a chair orientation changing mechanism 110.
The chair orientation changing mechanism 110 is a mechanism capable of setting the orientations of the chairs 13L and 13R at a plurality of positions around the axis of the support column 104. The chair orientation changing mechanism 110 is composed of a setting plate 111 provided on the support column 104 and a pin 112 provided on the chairs 13L and 13R.
The setting plate 111 is attached to the upper part of the support column 104 and faces the lower surface of the seat portion 13a of the chairs 13L and 13R. Specifically, as shown in FIG. 12, the setting plate 111 is provided below the chair support plate 108 that supports the lower surface of the seat portion 13a of the chairs 13L and 13R. A plurality of holes 111a are formed in the setting plate 111. The plurality of holes 111a are arranged in an arc shape (or an annular shape) around the axis of the support column 104 (around the axis in the vertical direction). In the case of the present embodiment shown in FIG. 12, the number of holes 111a is 5, but the number of holes 111a may be a plurality (preferably 3 or more) and is not limited.

A pin 112 and a projecting body 113 are provided on the lower surface of the seat portion 13a of the chairs 13L and 13R. Specifically, the upper portion of the pin 112 and the upper portion of the projecting body 113 are directly or indirectly connected to the chair support plate 108 that supports the seat surface 13a. The projecting body 113 projects downward from the lower surface of the seat portion 13a. The protrusion 113 is composed of, for example, a cylindrical pipe. The outer diameter of the pipe forming the projecting body 113 is formed to be smaller than the inner diameter of the pipe forming the support column 104. The lower part of the projecting body 113 is inserted into the upper part of the support column 104. As a result, the chairs 13L and 13R are supported on the upper part of the support column 104.

The pin 112 projects downward from the lower surface of the seat portion 13a of the chairs 13L and 13R. The pin 112 can be inserted from above with respect to the hole 111a when the projecting body 113 is inserted into the support column 104. By inserting the pin 112 into the hole 111a, the orientations of the chairs 13L and 13R are fixed. Note that FIG. 13 shows a state immediately before the pin 112 is inserted into the hole 111a (a state in which the chair is floated).

The pin 112 can be selectively inserted into any of the plurality of holes 111a, and the orientation of the chairs 13L and 13R is set depending on which hole the pin 112 is inserted into. Since the plurality of holes 111a are arranged around the axis of the support column 104, the orientations of the chairs 13L and 13R can be set at a plurality of positions around the axis of the support column 104 by selecting the holes for inserting the pins 112. Become. In other words, the positions of the backrest portions 13b (see FIGS. 15 and 18) of the chairs 13L and 13R can be set to a plurality of positions around the axis of the support column 104.

The orientations of the chairs 13L and 13R that can be changed by the chair orientation changing mechanism 110 include, for example, at least a state in which the seated worker faces diagonally forward and a state in which the seated worker faces forward. The worker can supply the seedlings to the seedling supply cups 14A and 14B while facing diagonally forward.
The configuration of the chair orientation changing mechanism 110 is not limited to the combination of the hole 111a and the pin 112. For example, instead of the hole 111a, a notch (recess) capable of locking the pin 112 is provided on the setting plate 111. It may be provided on the outer peripheral portion.

As shown in FIGS. 14, 15, and 19, the transplanter 1 includes boarding / alighting steps 120L and 120R. Although FIGS. 14 and 15 show the peripheral structure of the boarding / alighting step 120L, the peripheral structure of the boarding / alighting step 120R is also the same.
The boarding / alighting steps 120L and 120R are parts that the worker uses as a foothold when getting on and off the chairs 13L and 13R. The boarding / alighting steps 120L and 120R are provided between the machine body 2 and the rear wheels (wheels) 4L and 4R and in front of or behind the chairs 13L and 13R. In the case of the present embodiment, the boarding / alighting step 120L is provided between the aircraft 2 and the rear wheels 4L and behind the chair 13L. Further, the boarding / alighting step 120R is provided between the aircraft 2 and the rear wheel 4R and behind the chair 13R.

The boarding / alighting steps 120L and 120R are located between the mounting tables 121L and 121R on which the irrigation tank T is placed and the rear wheels (wheels) 4L and 4R. Specifically, as shown in FIGS. 14 and 15, the end 120d on the outer side of the machine body of the boarding / alighting steps 120L and 120R is the end 121a on the outer side of the machine body of the mounting platforms 121L and 121R and the rear end 120d in the width direction of the machine body. It is located between the wheels 4L and 4R.

The mounting table 121L is fixed at a position closer to the rear on the left side of the machine body 2, and is located between the body 2 and the rear wheels (wheels) 4L. The mounting table 121R is fixed at a position closer to the rear on the right side of the machine body 2, and is located between the body 2 and the rear wheels (wheels) 4R. The irrigation tank T is placed on the mounting tables 121L and 121R in a direction in which the length in the width direction of the machine body is shorter than the length in the front-rear direction. The boarding / alighting steps 120L and 120R are located in front of the mounting tables 121L and 121R and behind the support shaft 106 and the output shaft 102.

The boarding / alighting steps 120L and 120R have a step plate 120a, a front connecting plate 120b, and a rear connecting plate 120c. The step plate 120a is a plate on which an operator puts his / her feet when getting on and off, and is arranged with one side facing upward and the other side facing downward. That is, the step plate 120a is arranged so as to be substantially parallel (substantially horizontal) to the ground.
The step plate 120a is provided at a position lower than the seating surface of the chairs 13L and 13R. More specifically, the step plate 120a is provided at a position lower than the support shaft 106. The front connecting plate 120b is connected to the front portion of the step plate 120a and extends upward. The rear connecting plate 120c is connected to the rear portion of the step plate 120a and extends upward. The upper portions of the front connecting plate 120b and the rear connecting plate 120c are connected to the side portion of the machine body 2. As a result, the boarding / alighting steps 120L and 120R are connected to the side portions (left side portion and right side portion) of the machine body 2.

As shown in FIGS. 14, 16, 18, and 19, the transplanter 1 includes decks (footrests) 10L and 10R. Although FIGS. 14 and 16 show the peripheral structure of the deck 10L, the peripheral structure of the deck 10R is also the same.
The decks 10L and 10R are made of, for example, a metal plate. As shown in FIGS. 14, 16 and 18, the decks 10L and 10R are provided above the support shaft 106. The decks 10L and 10R have a rear plate portion 10a, a front plate portion 10b, and a connecting portion 10c connecting the rear plate portion 10a and the front plate portion 10b. The rear plate portion 10a is arranged above the support shaft 106 and extends along the support shaft 106 in the width direction of the machine body. The front plate portion 10b is arranged in front of the support shaft 106 and above the output shaft 102. The front plate portion 10a is provided at a position lower than that of the rear plate portion 10a. The connecting portion 10c connects the rear plate portion 10a and the front plate portion 10b in front of the support shaft 106. That is, in the case of the present embodiment, the decks 10L and 10R are composed of plates having steps (the height of the rear plate portion 10a and the height of the front plate portion 10b are different). However, the decks 10L and 10R may be composed of (flat) plates having no steps.

The decks 10L and 10R are provided in front of the support columns 104 that support the chairs 13L and 13R and toward the inside of the aircraft. As a result, the decks 10L and 10R are positioned at the feet of the worker sitting on the chairs 13L and 13R facing diagonally forward. Therefore, a worker who supplies seedlings to the planting cup can put his feet on the decks 10L and 10R during the work.
The decks 10L and 10R are provided in front of the boarding / alighting steps 120L and 120R and at a position higher than the boarding / alighting steps 120L and 120R. Specifically, the deck 10L is provided in front of the boarding / alighting step 120L and at a position higher than the boarding / alighting step 120L. The deck 10R is provided in front of the boarding / alighting step 120R and at a position higher than the boarding / alighting step 120R. As a result, the decks 10L and 10R can be used as an intermediate step in which the operator can get on the board while moving from the boarding / alighting steps 120L / 120R to the chairs 13L / 13R, or from the chairs 13L / 13R to the boarding / alighting steps 120L and 120R. It is available.

Next, the stands 8L and 8R and the mounting portions 9L and 9R will be described in detail mainly with reference to FIGS. 15 to 17. 15 and 16 show a state in which the stand 8L is mounted on the mounting portion 9L, but the same applies to the state in which the stand 8R is mounted on the mounting portion 9R. Further, although FIG. 17 shows the locking portion 130 of the stand 9R, the locking portion 130 of the stand 9L has the same configuration. The state in which the stands 8L and 8R are attached to the lower part of the machine body 2 is shown by a virtual line in FIG.

The stands 8L and 8R are made of a cylindrical body such as a pipe. The stands 8L and 8R can be attached to the lower part of the front part of the machine body 2 by, for example, inserting into a cylinder provided in the lower part of the front part of the machine body 2. Further, it can be removed from the lower part of the front part of the machine body 2 by pulling it out from the cylinder body.
As shown in FIG. 18, the stands 8L and 8R have a grounding portion 8a on one end side. The ground contact portion 8a is a disk having a diameter larger than the outer diameter of the cylindrical bodies constituting the stands 8L and 8R, and comes into contact with the ground while the machine body 2 is supported on the ground. The ground contact portion 8a may have a shape in which a part of the disk is cut out in a straight line. A first through hole 8b is formed in the stands 8L and 8R. The first through hole 8b penetrates the stands 8L and 8R in a direction orthogonal to the central axis direction.

The mounting portions 9L and 9R can mount the stands 8L and 8R removed from the machine body 2. Specifically, the mounting portion 9L can mount the stand 8L. The stand 8R can be mounted on the mounting portion 9R. The mounting portions 9L and 9R can be mounted by projecting the stands 8L and 8R upward from the machine body 2. The mounting portion 9L is provided between the machine body 2 and the chair 13L. The mounting portion 9R is provided between the machine body 2 and the chair 13R. Further, the mounting portions 9L and 9R are provided in front of the chairs 13L and 13R and toward the inside of the aircraft.

The mounting portions 9L and 9R have a tubular body 9a and a pin 9b. As shown in FIG. 16, the tubular body 9a is erected on the decks 10L and 10R. Specifically, the tubular body 9a is connected to the upper surface of the front plate portion 10b of the decks 10L and 10R so that the central axis direction faces the vertical direction. The stands 8L and 8R can be inserted into the cylinder 9a from above. The tubular body 9a has a second through hole 9c that penetrates the tubular body 9a in a direction orthogonal to the central axis direction. The pin 9b is penetrated through a second through hole 9c provided in the tubular body 9a of the mounting portions 9L and 9R and a first through hole 8b provided in the stands 8L and 8R.

The stands 8L and 8R removed from the machine body 2 are mounted on the mounting portions 9L and 9R with the ground contact portion 8a facing upward. Specifically, the stands 8L and 8R with the ground contact portion 8a facing upward are inserted from above the tubular body 9a, and the first through hole 8b and the second through hole 9c are overlapped with each other and the pin 9b is inserted. The stands 8L and 8R are mounted on the mounting portions 9L and 9R. That is, the stands 8L and 8R are mounted on the mounting portions 9L and 9R with their top and bottom facing upside down from the state of supporting the front portion of the machine body 2.

The stands 8L and 8R have a locking portion 130. The locking portion 130 is a portion capable of locking the container C for accommodating seedlings in a state of being mounted on the mounting portions 9L and 9R. The locking portion 130 is provided at a position closer to the upper side of the stands 8L and 8R. The locking portion 130 has a base portion 130a and a claw portion 130b.
The base 130a is fixed to the stands 8L and 8R and extends from the rear to the front. The front end portion of the base portion 130a is located toward and above the aircraft body with respect to the rear end portion. In other words, the base 130a extends so as to move toward the inside of the aircraft and upward from the rear to the front.

The claw portion 130b includes a first claw portion 131b and a second claw portion 132b. The first claw portion 131b is connected to the front end portion of the base portion 130a. The second claw portion 132b is connected to the rear end portion of the base portion 130a. Therefore, the first claw portion 131b is located in the machine body and above the second claw portion 132b. The first claw portion 131b and the second claw portion 132b face each other, and the base portion 130a and the claw portion 130b (the first claw portion 131b and the second claw portion 132b) are formed in a substantially U shape as a whole. The claw portion 130b extends from the base portion 130a toward the outside of the machine body. The claw portion 130b extends so as to move upward and forward toward the outside of the machine body.

The claw portion 130b (first claw portion 131b and second claw portion 132b) can be inserted into the opening Ca for the handle provided on the side surface of the container C. By inserting the claw portion 130b into the opening Ca of the container C, the container C is locked to the locking portion 130. In a state where the container C is locked to the locking portion 130 (hereinafter referred to as “locked state”), the outlet (opening at the upper part of the container) Cb for taking out the seedlings of the container C faces the chairs 13L and 13R. Tilt like. Specifically, in the locked state, the container C is inclined so that the front portion is high and the rear portion is low. As a result, the worker seated on the chairs 13L and 13R can easily take out the seedlings housed in the container C from the outlet Cb. Further, in the locked state, the surface of the container C on the machine body side comes into contact with the support column 104. As a result, the posture of the container C is stabilized.

Next, the effect of this embodiment will be described.
The transplanting machine 1 includes a first planting tool 37L and a second planting tool 37R for planting seedlings in a field, a drive shaft 31 that is rotationally driven, and a driving force of the drive shaft 31 that is arranged on one end side of the drive shaft 31. The first elevating body 39L that transmits the above, the first elevating mechanism 40L that is supported by the first transmitting body 39L and raises and lowers the first planting tool 37L by the power of the first transmitting body 39L, and the other end of the drive shaft 31. The second transmission body 39R, which is arranged on the side facing the first transmission body 39L and transmits the driving force of the drive shaft 31, and the second transmission body 39R supported by the second transmission body 39R and powered by the second transmission body 39R. A second elevating mechanism 40R for elevating and lowering the planting tool 37R is provided, and the first elevating mechanism 40L and the second elevating mechanism 40R are attached to the drive shaft 31 between the first transmission body 39L and the second transmission body 39R. They are arranged side by side in the direction along the line.

According to this configuration, maintenance of the first transmission body 39L and the second transmission body 39R can be easily performed.
In addition, a first support that is attached with a third planting tool 38L and a fourth planting tool 38R for planting seedlings in a field, a first planting tool 37L and a third planting tool 38L, and is raised and lowered by a first lifting mechanism 40L. It includes a body 41L and a second support 41R to which a second planting tool 37R and a fourth planting tool 38R are attached and which is raised and lowered by a second raising and lowering mechanism 40R.

According to this configuration, the number of planting rows can be increased with a simple configuration.
Further, a first opening / closing mechanism 72L for opening / closing the first planting tool 37L, a second opening / closing mechanism 72R for opening / closing the second planting tool 37R, and a third planting tool 38L interlocking with the first opening / closing mechanism 72L. It includes a first interlocking mechanism 81L that opens and closes, and a second interlocking mechanism 81R that opens and closes the fourth planting tool 38R in conjunction with the second opening and closing mechanism 72R.

According to this configuration, the structure can be simplified.
Further, it is provided with a first support mechanism 56L that supports the first planting tool 37L so as to be openable and closable in the front-rear direction, and a second support mechanism 56R that supports the second planting tool 37R so as to be openable and closable in the front-rear direction. The attachment 37L is attached to the first support mechanism 56L so that the angle can be changed in the body width direction K2 with respect to the vertical direction, and the second planting tool 37R is attached to the second support mechanism 56R with respect to the vertical direction. It is attached so that the angle can be changed in the width direction K2.

According to this structure, it is possible to change the line spacing of the seedling planting line with a simple structure.
In addition, the third planting tool 38L and the fourth planting tool 38R for planting seedlings in the field, the third support mechanism 57L for supporting the third planting tool 38L so as to be openable and closable, and the fourth planting tool 38R are provided. A fourth support mechanism 57R that can be opened and closed back and forth is provided, and the third planting tool 38L is attached to the third support mechanism 57L so that the angle can be changed in the body width direction K2 with respect to the vertical direction. The 4 planting tool 38R is attached to the 4th support mechanism 57R so that the angle can be changed in the body width direction K2 with respect to the vertical direction.

According to this structure, it is possible to change the line spacing of the seedling planting line with a simple structure.
A transplant frame 23 that supports the bases of the first transmission body 39L and the second transmission body 39R, and the frame material (front frame material 29) arranged on the tip side of the first transmission body 39L and the second transmission body 39R. The transplanted frame 23, the first connecting member 50L that connects the frame member and the tip end side of the first transmission body 39L, and the second connecting member 50R that connects the frame member and the tip end side of the second transmission body 39R. It has.

According to this configuration, the first transmission body 39L and the second transmission body 39R can be firmly supported.
Further, the first transmission body 39L can be repositioned in the axial direction of the drive shaft 31 at one end of the drive shaft 31, and the second transmission 39R is at the other end of the drive shaft 31. The position can be changed in the axial direction of.

According to this structure, it is possible to change the line spacing of the seedling planting line with a simple structure.
In addition, the first relay guide 87L that guides the seedlings to the first planting tool 37L and the third planting tool 38L, and the second relay guide 87R that guides the seedlings to the second planting tool 37R and the fourth planting tool 38R. And have.
According to this configuration, seedlings can be reliably supplied to the first planting tool 37L to the fourth planting tool 38R.

Further, the transplanter 1 supports the machine 2 provided with the transplant portion 11 for planting seedlings in the field, the wheels (rear wheels) 4L and 4R provided on the side of the machine 2, and the wheels 4L and 4R on the body 2. The wheel supports 7L and 7R and the chairs 13L and 13R supported by the wheel supports 7L and 7R are provided.
According to this configuration, since the chairs 13L and 13R are supported by the wheel supports 7L and 7R that support the wheels 4L and 4R on the airframe 2, the chairs 13L and 13R are stably and reliably placed above the wheels 4L and 4R. Can be supported by.

Further, a prime mover E1 for driving the wheels 4L and 4R is provided, and the wheel supports 7L and 7R accommodate a transmission mechanism for transmitting the power of the prime mover E1 to the axles of the wheels 4L and 4R and can swing with respect to the airframe 2. The chairs 13L and 13R are supported by the transmission case 100.
According to this configuration, the chairs 13L and 13R are supported by the transmission case 100 that can swing with respect to the machine body 2, so that when the transmission case 100 swings with respect to the machine body 2, the chairs 13L and 13R Can follow the movement of the transmission case 100.

Further, it includes a support column 104 that supports the chairs 13L and 13R, and a bracket 105 that is attached to the support column 104 and pivotally supported by the transmission case 100.
According to this configuration, the chairs 13L and 13R can be reliably and stably supported by the transmission case 100.
Further, a support shaft 106 projecting laterally from the machine body 2 and a connecting member 107 having one end side pivotally supported by the support shaft 106 and the other end side pivotally supported by the bracket 105 are provided.

According to this configuration, the bracket 105, the connecting member 107, the output shaft 102, and the support shaft 106 form a four-node link mechanism. Therefore, when the transmission case 100 swings around the output shaft 102, the support column 104 to which the bracket 105 is attached can be raised and lowered without tilting. Therefore, the posture of the worker seated on the chairs 13L and 13R supported by the support column 104 is not impaired.

Further, the chair orientation changing mechanism 110 is provided so that the orientations of the chairs 13L and 13R can be set at a plurality of positions around the axis of the support column 104.
According to this configuration, the direction in which the worker seated on the chairs 13L and 13R faces can be changed, so that the worker can change the direction in which the seedlings are placed in the seedling supply cups 14A and 14B in the most suitable posture (direction) for the work. Supply work, etc. can be performed.

Further, the boarding / alighting steps 120L and 120R provided between the machine body 2 and the wheels (rear wheels) 4L and 4R and in front of or behind the chairs 13L and 13R are provided.
According to this configuration, the operator can put his / her foot on the boarding / alighting steps 120L / 120R from between the machine body 2 and the wheels (rear wheels) 4L / 4R. Therefore, the operator can easily reach the chairs 13L and 13R from the furrows (ridge grooves) of the field through the passage formed between the rear wheels 4L and the mounting table 121L, using the boarding / alighting steps 120L and 120R as a foothold. Can be reached.

Further, mounting tables 121L and 121R on which the irrigation tank T is placed are provided between the machine body 2 and the wheels (rear wheels) 4L and 4R, and the boarding / alighting steps 120L and 120R include the mounting tables 121L and 121R and the wheels 4L and 4R. It is provided between.
According to this configuration, the operator can get on the boarding / alighting steps 120L / 120R through between the mounting tables 121L / 121R and the wheels 4L / 4R. Therefore, even when the irrigation tank T is mounted on the mounting tables 121L and 121R, access to the boarding / alighting steps 120L and 120R is not hindered.

Further, footrests (deck) 10L and 10R for workers seated on chairs 13L and 13R are provided, and the footrests 10L and 10R are provided above the support shaft 106.
According to this configuration, the worker can put his / her feet on the footrests 10L and 10R at the time of work. Further, the footrests 10L and 10R can be arranged by effectively utilizing the space above the support shaft 106.

Further, footrests (deck) 10L and 10R for workers seated on the chairs 13L and 13R are provided, and the boarding / alighting steps 120L and 120R are provided behind the chairs 13L and 13R. The platforms 10L and 10R are provided in front of the boarding / alighting steps 120L and 120R and at a position higher than the boarding / alighting steps 120L and 120R.
According to this configuration, the operator can get on the decks 10L and 10R while moving from the boarding / alighting steps 120L and 120R to the chairs 13L and 13R, or from the chairs 13L and 13R to the boarding / alighting steps 120L and 120R. Available as a step.

Further, the transplanting machine 1 includes a machine body 2 provided with a transplanting portion 11 for planting seedlings in a field, wheels 3L, 3R (4L, 4R) provided on the machine body 2, and the machine body 2 on the ground with the wheels floating. The stands 8L, 8R are provided with a stand 8L, 8R that can be supported and can be removed, and a mounting portion 9L, 9R that can be mounted by projecting the removed stand 8L, 8R upward from the machine body 2, and the stands 8L, 8R are provided. It has a locking portion 130 capable of locking the container C for accommodating seedlings in a state of being mounted on the mounting portions 9L and 9R.

According to this configuration, by removing the stands 8L and 8R that support the machine body 2 and mounting them on the mounting portions 9L and 9R, it can be used as a member for locking (supporting) the container C that houses the seedlings. That is, the member that supports the container and the member that supports the airframe can be used in combination. As a result, the stands 8L and 8R can be effectively used, and it is not necessary to provide a dedicated stand or equipment for installing the container.

Further, the chairs 13L and 13R provided on the side of the machine body 2 are provided, and the mounting portions 9L and 9R are provided between the machine body 2 and the chairs 13L and 13R.
According to this configuration, the stands 8L and 8R mounted on the mounting portions 9L and 9R are arranged in the vicinity of the worker seated on the chairs 13L and 13R. Therefore, when the container C is locked in the locking portion 130, the worker can easily take out the seedlings housed in the container C.

Further, the stands 8L and 8R are provided with a ground contact portion 8a that comes into contact with the ground while the machine body 2 is supported on the ground, and are mounted on the mounting portions 9L and 9R with the ground contact portion 8a facing upward.
According to this configuration, the stands 8L and 8R can be mounted on the mounting portions 9L and 9R by a simple operation of turning the stands 8L and 8R upside down from the state of supporting the front portion of the machine body 2. Further, with the container C locked to the locking portion 130, the outer surface of the container C can be brought into contact with the grounding portion 8a of the stands 8L and 8R to receive the container C, and the container C is locked to the locking portion 130. Container C is stable. Further, when the ground contact portion 8a has a shape in which a part of the disk is cut out in a straight line, the outer surface of the container C is brought into contact with the cut out portion to support the container C more stably. be able to.

Further, the mounting portions 9L and 9R have a tubular body 9a into which the stands 8L and 8R can be inserted, and a pin 9b penetrated through the tubular body 9a and the stands 8L and 8R.
According to this configuration, the stands 8L and 8R can be easily and surely mounted on the mounting portions 9L and 9R. Further, since the rotation of the stands 8L and 8R around the axis is prevented by the pin 9b, it is possible to prevent the container C locked to the locking portion 130 from rotating.

Further, the locking portion 130 has a claw portion 130a that can be inserted into the opening Ca for the handle of the container C.
According to this configuration, the container C can be locked to the locking portion 130 by a simple operation of inserting the claw portion 130a into the opening Ca for the handle of the container C. It is also easy to remove the container C from the locking portion 130.

Further, the locking portion 130 can lock the container C by inclining the outlet Cb for taking out the seedlings so as to face the chairs 13L and 13R.
According to this configuration, the worker seated on the chairs 13L and 13R can easily take out the seedlings housed in the container C from the outlet Cb.
Although the present invention has been described above, it should be considered that the embodiments disclosed this time are exemplary in all respects and are not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and it is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1 Transplanter 2 Aircraft 11 Transplant 3L, 3R Front wheels (wheels)
4L, 4R rear wheels (wheels)
8L, 8R Stand 8a Grounding part 9L, 9R Mounting part 9a Cylinder 9b Pin 13L, 13R Chair 130 Locking part 130a Claw part C Container Ca Opening Cb Outlet

Claims (6)

An aircraft equipped with a transplant part for planting seedlings in the field,
The wheels provided on the aircraft and
A stand that can support the aircraft on the ground with the wheels floating and that can be removed.
A mounting part that can be mounted by projecting the removed stand upward from the aircraft,
A chair provided on the side of the machine and on which an operator can sit,
The deck located at the feet of the worker sitting on the chair,
With
The mounting portion has a tubular body provided between the machine body and the chair, located on the front side of the chair, into which the stand can be inserted, and erected on the deck.
The stand is a transplanter having a locking portion capable of locking a container for accommodating seedlings in a state of being mounted on the mounting portion. The chair is arranged so that the worker can sit on it facing diagonally forward on the side of the machine.
The deck is located at the feet of an operator seated in the chair facing diagonally forward.
The transplanter according to claim 1, wherein the mounting portion is located on the front side of an operator seated on the chair with the mounting portion facing diagonally forward. The stand is provided with a ground contact portion that comes into contact with the ground while the aircraft is supported on the ground, and is mounted on the mounting portion with the ground contact portion facing upward.
The transplanter according to claim 1 or 2, wherein the grounding portion has a shape in which a part of a disk is cut out in a straight line, and the outer surface of the container can be brought into contact with the cutout portion. The mounting portion, transplantation machine as set forth in claim 1 having a pin which penetrates into the cylindrical body and the stand. The transplanter according to any one of claims 1 to 4, wherein the locking portion has a claw portion that can be inserted into an opening for a handle of the container. The transplanter according to any one of claims 1 to 4, wherein the locking portion can lock the container by inclining the outlet for taking out seedlings so as to face the chair.

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