JP2020000042A - Transplanter - Google Patents

Abstract

To provide a transplanter capable of quickly stopping operation of a seedling supply part when force for interfering operation to the seedling supply part is applied.SOLUTION: A transplanter comprises: a machine body which can travel; a prime motor provided on the machine body; a transplanting part which is provided on the machine body for transplanting the seedlings to a farm field; a seedling supply part which is provided on the machine body for supplying seedlings to the transplanting part; a power transmission mechanism for transmitting power from the prime motor to the seedling supply part; and a power block mechanism for, when force for interfering operation is applied to the seedling supply part, blocking transmission of power to the seedling supply part by the power transmission mechanism.SELECTED DRAWING: Figure 13

Description

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

BACKGROUND ART Conventionally, a transplanter disclosed in Patent Document 1 is known.
The transplanter disclosed in Patent Literature 1 supplies a traveling vehicle body, a steering handle provided at a rear portion of the traveling vehicle body for walking operation, a seedling planting apparatus for planting seedlings in a field, and supplying seedlings to the seedling planting apparatus. Seedling supply device. The seedling supply device includes a tubular body, a plurality of seedling containers that have a bottom lid that opens and closes a lower opening of the tubular body, and are connected to each other in a loop shape. It is configured to have a moving mechanism for rotating around the shape of a loop-like locus and an opening mechanism for opening the bottom cover of the seedling container above the seedling plant.

JP 2011-160814 A

  In the transplanter disclosed in Patent Document 1, even if a force that hinders the operation of the seedling supply unit (seedling supply device) is applied, unless the operator performs an operation to stop the seedling supply unit. The operation of the seedling supply cannot be stopped. For this reason, when the operator accidentally puts his hand in the moving mechanism of the seedling supply unit, the operation of the seedling supply unit cannot be stopped immediately.

  The present invention has been made in view of the related art, and provides a transplanter that can quickly stop the operation of the seedling supply unit when a force that hinders the operation is applied to the seedling supply unit.

  A transplanter according to an aspect of the present invention includes a movable body, a prime mover provided in the body, a transplanter provided in the body and planting seedlings in a field, and a transplanter provided in the body and provided with the transplanter. A seedling supply unit for supplying seedlings to the plant; a power transmission mechanism for transmitting power from the prime mover to the seedling supply unit; and a power transmission mechanism for applying a force to the seedling supply unit to hinder operation. And a power cutoff mechanism for cutting off transmission of power to the seedling supply unit.

Further, the seedling supply section has a seedling supply cup and a transfer mechanism for transferring the seedling supply cup along an annular path, and the power cutoff mechanism has a force for preventing the transfer mechanism from transferring. When power is applied, transmission of power to the seedling supply unit by the power transmission mechanism is shut off.
In addition, the power cutoff mechanism includes a first transmission shaft to which power from the prime mover is transmitted, a second transmission shaft to transmit power to the seedling supply unit, the first transmission shaft and the second transmission shaft. A relay portion interposed between the first transmission shaft and the first transmission shaft to transmit power from the first transmission shaft to the second transmission shaft, wherein the relay portion has a force that prevents rotation with respect to the second transmission shaft. Sometimes, transmission of power from the first transmission shaft to the second transmission shaft is interrupted.

  The transplanter further includes a chair arranged around the body and on which an operator supplying the seedlings to the seedling supply unit is seated, wherein the seedling supply unit supports the seedling supply unit and the annular path. A supporting frame having an annular frame surrounding the outer periphery of the frame, wherein the supporting frame is provided with a handrail gripped by an operator sitting on the chair, and the handrail is provided behind the frame. A rear portion disposed along the edge; and a side portion extending forward from the rear portion and disposed along a side edge of the frame portion.

Further, the side part shifts upward as it goes forward.
Further, a chair is provided around the machine body and on which a worker who supplies seedlings to the seedling supply section is seated, and a mounting section to which the chair is detachably mounted, wherein the mounting section includes the chair. A first mounting portion for mounting the chair on the side of the seedling supply portion, and a second mounting portion for mounting the chair behind the seedling supply portion and inward of the first mounting portion in the body width direction. ,including.

  Further, the first mounting portion is movable to a first position beside the seedling supply portion and a second position closer to the seedling supply portion than the first position.

  According to the above transplanter, since a power cutoff mechanism for cutting off transmission of power to the seedling supply unit by the power transmission mechanism when a force that hinders operation is applied to the seedling supply unit, When a force that hinders the operation is applied, the operation of the seedling supply unit can be quickly stopped by the power cutoff mechanism.

It is a top view of a seedling supply device. It is a front sectional view of a seedling supply device. It is a top view of a seedling supply part and a handrail. It is the perspective view which looked at the horizontal adjustment lever, the indicator, etc. from the upper back. It is a rear view of a reference body and a reference body. It is a top view of a transplant part. It is a side view of a transplant part. It is a schematic front view of a transplant part. It is a perspective view of an implanting device. It is a perspective view showing an opening and closing mechanism and an interlocking mechanism. It is a side view which shows an opening / closing mechanism and a support mechanism. It is a figure showing composition of a power transmission mechanism which transmits power from a prime mover to a transplant part and a seedling supply part. It is a perspective view which shows a part of power transmission mechanism which transmits the power from a motor to a transplant part and a seedling supply part. It is a perspective view which shows a power cutoff mechanism. It is an exploded perspective view showing a power cutoff mechanism. It is a top view which shows the arrangement | positioning of a part of tube in an implantation part. It is a top view which shows the whole arrangement | positioning of the tube in a transplant part. It is a side view showing the state where the tube was attached to the attachment part of the guide member. It is a front view which shows a cover, a grounding member, a support member, and a ridge height detection member. It is a side view which shows a cover, a grounding member, a support member, and a ridge height detection member. It is a perspective view of a cover. It is a front view of a cover. It is a top view of a cover. It is a left view of a cover. It is a perspective view which shows the attachment method of the cover with respect to a fuselage. It is a perspective view which shows the attachment structure of the cover with respect to a fuselage. It is a perspective view showing the state where the cover was attached to the body. It is a front perspective view which shows the support mechanism of a chair. It is a rear perspective view which shows the support mechanism of a chair. It is a perspective view which shows the mounting method of the chair with respect to a 1st mounting part and a 2nd mounting part. It is a perspective view which shows a mode that a boarding / alighting step is changed from a 2nd attitude | position to a 1st attitude | position, and a 2nd support | pillar (2nd mounting part). It is a side view which shows the transplanter provided with the support frame. It is a front view which shows the implanting machine provided with the support frame. It is a top view which shows the implanting machine in the state which extended the support frame. It is a top view which shows the implanting machine in the state where the support frame was shortened. It is a perspective view of a support frame. It is a front view which shows a mode that a support frame is extended. It is a front view which shows a mode that the support frame is shortened and the deploying member is deployed. It is a side view which shows the transplanting machine in the state which attached the hood member to the support member. It is a front view showing the transplanting machine in the state where the top member was attached to the support member. It is a rear view showing the transplanting machine in the state where the top part was attached to the support member. It is a top view which shows the state which made the boarding / alighting step the 2nd attitude | position and made the chair and the rear wheel approach the body. It is a top view of a transplanting machine, and shows the state where a chair and a rear wheel were made to separate from a fuselage with a boarding / alighting step being a 1st posture. It is a front view of a transplanter. It is a side view of an implanting machine, and shows the state where the body was raised with respect to the wheel. It is a side view of a transplanting machine, and shows the state where the fuselage was lowered with respect to the wheel.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings as appropriate.
FIGS. 43 to 45 show the transplanter 1 for planting seedlings such as onions in a field (ridge) while traveling in the field. 43 is a plan view of the transplanter 1, FIG. 44 is a front view of the transplanter 1, and FIG. 45 is a side view of the transplanter 1.
In the embodiment of the present invention, the traveling direction (arrow A1 direction in FIGS. 43 and 45) of the transplanter 1 at the time of seedling planting is forward, and the opposite side (arrow A2 direction in FIGS. 43 and 45) is backward. The left side (direction of arrow B1 in FIGS. 43 and 44) in the traveling direction will be described as left, and the right side (direction of arrow B2 in FIGS. 43 and 44) of the traveling direction will be described as right.

  Also, as shown in FIGS. 43 and 44, a horizontal direction orthogonal to the front-rear direction K1 will be described as a body width direction (width direction of the body 2) K2. The direction from the center in the width direction of the transplanter 1 (machine 2) to the right or left will be described as the outside of the machine (outside in the machine width direction). In other words, the outside of the body is a direction that is the body width direction K2 and that is away from the center of the transplanter 1 (body 2) in the width direction. The direction opposite to the outside of the body will be described as the inside of the body (inside in the body width direction). In other words, the inside of the body is the body width direction K2 and a direction approaching the center of the body 2 in the width direction.

  As shown in FIGS. 43 to 45, the transplanter 1 has a body 2. A prime mover E1 is mounted at the rear of the body 2. The prime mover E1 may be an engine or a motor. The body 2 has a transmission case M1 to which power from the prime mover E1 is transmitted. At the rear of the body 2, a steering handle 5 that is gripped by an operator when performing the walking operation of the transplanter 1 is provided.

  The transplanter 1 includes wheels that support the body 2 so that the body 2 can travel. The wheels include a front wheel 3L and a rear wheel 4L disposed on the left side of the fuselage 2, and a front wheel 3R and a rear wheel 4R disposed on the right side of the fuselage 2. The front wheels 3L, 3R are wheels that rotate freely, and the rear wheels 4L, 4R are drive wheels that receive power from the transmission case M1 and rotate. The wheels (the front wheels 3L, 3R, the rear wheels 4L, 4R) rotate while being in contact with adjacent ridges (ridges) during transplantation.

  On the left side of the body 2, a front wheel support arm 6L is provided. The upper portion of the front wheel support arm 6L is supported by the fuselage 2 so as to be rotatable about a horizontal axis (an axis extending in the fuselage width direction K2). A front wheel 3L is rotatably mounted below the front wheel support arm 6L. On the right side of the body 2, a front wheel support arm 6R is provided. The upper part of the front wheel support arm 6R is supported by the fuselage 2 so as to be rotatable around a horizontal axis. A front wheel 3R is rotatably mounted below the front wheel support arm 6R.

  On the left side of the body 2, a wheel support 7L is provided. The upper part of the wheel support 7L is supported by the fuselage 2 so as to be rotatable around a horizontal axis. A rear wheel 4L is rotatably attached to a lower portion of the wheel support 7L. On the right side of the body 2, a wheel support 7R is provided. The upper part of the wheel support 7R is supported by the fuselage 2 so as to be rotatable around a horizontal axis. A rear wheel 4R is rotatably attached to a lower portion of the wheel support 7R.

The front wheel support arms 6L, 6R and the wheel supports 7L, 7R can be driven to swing forward or backward around a horizontal axis by a hydraulic cylinder (not shown). As a result, the front wheels 3L, 3R and the rear wheels 4L, 4R move up and down relatively to the body 2. By simultaneously moving the front wheels 3L, 3R and the rear wheels 4L, 4R up and down with respect to the body 2, the body 2 is moved up and down with respect to the ground.
Specifically, when the front wheel support arms 6L and 6R are swung rearward and the wheel supports 7L and 7R are swung forward, the distance between the front wheels 3L and 3R and the rear wheels 4L and 4R in the front-rear direction decreases. Therefore, the wheels (the front wheels 3L and 3R and the rear wheels 4L and 4R) descend relatively to the body 2, and the body 2 rises with respect to the ground (see FIG. 45). On the other hand, when the front wheel support arms 6L, 6R are swung forward and the wheel supports 7L, 7R are swung rearward, the distance between the front wheels 3L, 3R and the rear wheels 4L, 4R in the front-rear direction increases. Therefore, the wheels (the front wheels 3L, 3R and the rear wheels 4L, 4R) rise relatively to the body 2, and the body 2 descends with respect to the ground (see FIG. 46).

A hydraulic cylinder (hereinafter, referred to as an “elevation cylinder”) that swings and drives the front wheel support arms 6L and 6R and the wheel supports 7L and 7R, together with an elevation control valve (not shown) that controls the operation of the elevation cylinder, includes wheels (not shown). An elevating mechanism (hereinafter, referred to as “airframe elevating mechanism”) configured to elevate and lower the airframe 2 relative to the front wheels 3L, 3R and the rear wheels 4L, 4R is configured.
Further, the transplanter 1 is provided with a horizontal control device (not shown) for keeping the body 2 horizontal. The horizontal control device has a Monroe cylinder which is a hydraulic cylinder. The Monroe cylinder connects the fuselage 2 with the right front wheel support arm 6R and the wheel support 7R via a linking member. By extending or shortening the rod of the Monroe cylinder, only the right front wheel 3R and the rear wheel 4R can be moved up and down with respect to the body 2. Thus, the aircraft 2 can be maintained horizontal even on a slope.

  The transplanting machine 1 has a transplanting unit 11 for planting seedlings in a field and a seedling supplying unit 12 for supplying seedlings to the transplanting unit 11. The transplant unit 11 and the seedling supply unit 12 are provided in the body 2. The transplant unit 11 is provided at the front of the body 2. The seedling supply section 12 is provided above the body 2 from the front to the rear. The seedling supply unit 12 includes a first seedling supply device 12L provided on the left side of the body 2 and a second seedling supply device 12R provided on the right side of the body 2.

  Chairs 13L and 13R are arranged around the body 2. The chairs 13L and 13R are arranged on one side and the other side in the body width direction, respectively. Specifically, a first chair (chair) 13L is provided on one side (left side) of the body 2 and a second chair (chair) 13R is provided on the other side (right side) of the body 2. ing. The first chair (chair) 13L is arranged on the side (left side) of the first seedling supply device 12L, and is provided above the deck 10L. The second chair 13R is arranged on the side (right side) of the second seedling supply device 12R, and is provided above the deck 10R. The decks 10L and 10R are parts on which the worker rides and on which the worker who sits on the chair (the first chair 13L and the second chair 13R) and supplies the seedlings puts his feet. At the front of the decks 10L and 10R, columns 17L and 17R that can support a container or the like containing the seedlings by being hooked are erected.

  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 transplanting machine 1 is a riding type transplanting machine 1 in which an operator sitting on the first chair 13L and / or the second chair 13R can perform operations such as steering during the planting operation. The operator sits on the first chair 13L and / or the second chair 13R facing the inside of the machine (facing the seedling supply unit 12 side). When the worker sits in both the first chair 13L and the second chair 13R, for example, the worker of the first chair 13L supplies seedlings to the first seedling supply device 12L, and the worker of the second chair 13R The seedlings are supplied to the second seedling supply device 12R. Hereinafter, the first chair 13L and the second chair 13R are collectively referred to as “chairs 13L and 13R”.

Next, the first seedling supply device 12L and the second seedling supply device 12R will be described with reference to FIGS. 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 to which seedlings are supplied from above by an operator. As shown in FIG. 2, the seedling supply cups 14 </ b> A and 14 </ b> B include a cylindrical cup body 15 having an upper and lower opening, and a bottom lid 16 that opens and closes a 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. 1, the seedling supply cups 14 </ b> A and 14 </ b> B are arranged at regular intervals in an annular shape (loop shape) so as to present a long oval shape in the front-rear direction K <b> 1 in plan view. The seedling supply cups 14A and 14B are movable along this annular (elliptical) cup arrangement path (transfer path).
The seedling supply cups 14A and 14B are provided with a first cup 14A for dropping and discharging seedlings at a first position X1 on the outer side of the machine in front of the cup arrangement path, and a first cup 14A on the inner side of the machine in front of the cup arrangement path. The second cup 14B for dropping and discharging the seedlings at the second position X2 is alternately arranged along the cup arrangement path.

In the first seedling supply device 12L, the seedling supply cups 14A and 14B are circulated and transferred in the direction indicated by the arrow Y1 along the cup arrangement path. In the second seedling supply device 12R, the seedling supply cups 14A and 14B are transported around the cup arrangement path in the direction indicated by the arrow Y2.
The opening of the bottom lid 16 is regulated by the regulating member, and the bottom lid 16 is released from the regulating member 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 first seedling supply device 12L includes a driving sprocket 18 disposed at a rear part on the inner peripheral side of the cup arrangement path, a driven sprocket 19 disposed at a front part on an inner peripheral side of the cup arrangement path, and these sprockets 18, 19. And an endless transfer chain 20 wound therearound. The drive sprocket 18, the driven sprocket 19, and the transfer chain 20 constitute a transfer mechanism that moves the seedling supply cups 14A, 14B along an annular path (cup transfer path). As shown in FIG. 2, a connecting portion 21 is provided at a lower portion of the cup body 15, and the connecting portion 21 is connected to the transfer chain 20.

Therefore, when the transfer chain 20 is driven by the drive sprocket 18, the seedling supply cups 14A and 14B are transferred intermittently.
As shown in FIG. 3, the seedling supply unit 12 includes a support frame 22 that supports the first seedling supply device 12L and the second seedling supply device 12R. The support frame 22 has a front frame 22F, a rear frame 22B, a left frame 22L, a right frame 22R, and a center frame 22M. The front frame member 22F is arranged in front of the seedling supply unit 12, and extends in the body width direction K2 in front of the first seedling supply device 12L and the second seedling supply device 12R. The rear frame member 22B is disposed behind the seedling supply unit 12, and extends in the machine body width direction K2 behind the first seedling supply device 12L and the second seedling supply device 12R. The left frame member 22L is disposed on the left side of the seedling supply unit 12, and extends in the front-rear direction on the left side of the first seedling supply device 12L and the second seedling supply device 12R. The right frame member 22R is disposed on the right side of the seedling supply unit 12, and extends in the front-rear direction on the right side of the first seedling supply device 12L and the second seedling supply device 12R. The central frame member 22M extends in the front-rear direction at a central portion (between the first seedling supply device 12L and the second seedling supply device 12R) in the machine body width direction K2. The center frame member 22M connects a center portion of the front frame member 22F in the body width direction K2 and a center portion of the rear frame member 22B in the body width direction K2.

  As shown in FIG. 3, the front frame member 22F, the rear frame member 22B, the left frame member 22L, the right frame member 22R, and the center frame member 22M constitute annular frame portions 26L and 26R surrounding the annular cup transfer path. ing. The frame portion 26L includes a left portion of the front frame material 22F, a left portion of the rear frame material 22B, a left frame material 22L, and a central frame material 22M, and has an oval shape that accommodates a cup transfer path of the first seedling supply device 12L. The first opening 12La is formed. The frame portion 26R includes a right portion of the front frame material 22F, a right portion of the rear frame material 22B, a right frame material 22R, and a center frame material 22M, and has an oval shape that accommodates a cup transfer path of the second seedling supply device 12R. The second opening 12Ra is configured.

  The support frame 22 has a top plate 22a, a left plate 22b, a right plate 22c, a front plate 22d, and a rear plate 22e. The top plate 22a forms the upper surface of the support frame 22. The upper surface of the top plate 22a is formed flat. The top plate 22a has a first opening 12La and a second opening 12Ra. The left side plate 22b extends downward from the left edge of the support frame 22 (the left edge of the left frame member 22L), and forms the left side surface of the support frame 22. The right side plate 22c extends downward from the right edge of the support frame 22 (the right edge of the right frame member 22R), and forms the right side surface of the support frame 22. The front plate 22d extends downward from the front edge of the support frame 22 (the front edge of the front frame member 22F), and forms the front surface of the support frame 22. The rear plate 22e extends downward from the rear edge of the support frame 22 (the rear edge of the rear frame member 22B), and forms the rear surface of the support frame 22.

  As shown in FIGS. 3 and 43 to 45, a handrail 90 is attached to the support frame 22. The handrail 90 is provided for an operator sitting on the chairs 13L and 13R to grip. The handrail 90 is attached to the rear frame member 22 </ b> B of the support frame 22. The handrail 90 has a rear part 91 and a side part 92. The rear portion 91 extends in the body width direction K2 along the rear frame member 22B. The side part 92 includes a first side part 92L and a second side part 92R.

  The first side portion 92L is provided on the left side of the body 2. The second side portion 92R is provided on the right side of the body 2. The rear portion 91 extends rearward and above the rear frame member 22B in the body width direction K2, and connects the first side portion 92L and the second side portion 92R. The first side portion 92L extends forward from one end (left end) of the rear portion 91 in the body width direction, and is disposed along a side edge (left side edge) of the frame portion 26L. The first side portion 92L moves upward as it extends forward. In addition, the first side portion 92L moves outward (leftward) as the body extends forward. The second side portion 92R extends forward from the other end (right end) of the rear portion 91 in the body width direction, and is disposed along the side edge (right edge) of the frame 26R. The second side portion 92R moves upward as it extends forward. Further, the second side portion 92R moves outward (rightward) as the body extends forward.

As shown in FIGS. 44 and 45, the first side portion 92L and the second side portion 92R are located above the support frame 22. As shown in FIG. 3, the front end of the first side portion 92 </ b> L is located outside (to the left of) the body of the support frame 22 from the left end. The front end of the second side portion 92R is located outside the body (rightward) of the right end of the support frame 22.
Describing the positional relationship between the handrail 90 and the first opening 12La and the second opening 12Ra, the rear part 91 is located behind and above the first opening 12La. The first side portion 92L is located outside (leftward) and above the first opening 12La. The rear part 91 is arranged behind and above the second opening 12Ra. The second side portion 92R is located outside (rightward) and above the body of the second opening 12Ra. Thereby, the chair 13L. An operator who sits on the 13R and works or gets on and off the chairs 13L and 13R is prevented from accidentally putting his / her hand in the first opening 12La and the second opening 12Ra and being injured.

  As shown in FIGS. 3 and 43, a first grip 92La is provided at the front end of the first side portion 92L. The first grip 92La is a part that the operator grips with his hand when getting on and off the first chair 13L. A second grip 92Ra is provided at the front end of the second side portion 92R. The second grip 91Ra is a portion that the operator grips with his hand when getting on and off the second chair 13R. The first grip 91La is provided behind the first chair 13L. The second grip 91Ra is provided behind the second chair 13R. Thereby, the worker heading to the first chair 13L from behind the body 2 can hold the first grip 91La and sit on the first chair 13L. In addition, an operator heading for the second chair 13R from behind the body 2 can sit on the second chair 13R by holding the second grip 91Ra. The first grip 91La may be provided in front of the first chair 13L, and the second grip 91Ra may be provided in front of the second chair 13R.

  As shown in FIGS. 3 and 43 to 45, an operation lever 93 capable of shutting off power transmission from the prime mover E1 to the rear wheels (wheels) 4L and 4R is arranged in the seedling supply unit 12. The operation lever 93 protrudes upward from the rear portion of the central frame member 22M. The operation lever 93 is a lever for operating a main clutch capable of permitting or interrupting power transmission from the prime mover E1 to the rear wheels (wheels) 4L, 4R, the transplanting unit 11, and the seedling supply unit 12. For example, when a malfunction occurs during the work, the worker sitting on the first chair 13L or the second chair 13R reaches the hand to operate the operation lever 93, so that the rear wheels (wheels) are moved from the prime mover E1. Power transmission to the 4L, 4R, the transplanting unit 11, and the seedling supply unit 12 can be cut off.

  As shown in FIGS. 3 and 43 to 45, the seedling supply unit 12 is provided with a horizontal adjustment lever 97. The horizontal adjustment lever 97 is a lever that operates the horizontal control device. By operating the horizontal adjustment lever 97, the rod of the Monroe cylinder of the horizontal control device is extended or shortened. Thereby, the inclination of the body 2 can be adjusted (corrected), and the body 2 and the transplant portion 11 can be made horizontal.

  The horizontal adjustment lever 97 is disposed in front of the operation lever 93. The horizontal adjustment lever 97 is arranged between the first seedling supply device 12L and the second seedling supply device 12R. As shown in FIGS. 3 and 4, the horizontal adjustment lever 97 extends vertically through a first elongated hole 22 f formed in the top plate 22 a of the support frame 22. The first elongated hole 22f is formed in the central frame member 22M, and extends in the machine body width direction K2.

  As shown in FIG. 4, the horizontal adjustment lever 97 is swingable along one first hole 22f in one side (left side) and the other side (right side) in the machine body width direction K2. Specifically, the horizontal adjustment lever 97 is swingable to a reference lever position 97M, a first lever position 97L, and a second lever position 97R. The reference lever position 97M is located at the center of the first elongated hole 22f in the body width direction. The first lever position 97L is located on one side (left side) in the machine width direction with respect to the reference lever position 97M. The second lever position 97R is located on the other side (right side) in the machine width direction with respect to the reference lever position 97M.

  The upper portion of the horizontal adjustment lever 97 protrudes from the first elongated hole 22f above the support frame 22 (above the top plate 22a), and can be gripped by the workers sitting on the chairs 13L and 13R. The lower portion of the horizontal adjustment lever 97 extends below the support frame 22 through the first elongated hole 22f, and is linked to the Monroe cylinder of the horizontal control device via a link mechanism (not shown). Thereby, the rod of the Monroe cylinder can be extended or shortened by gripping and swinging the upper portion of the horizontal adjustment lever 97.

  By swinging the horizontal adjustment lever 97 to one side in the body width direction K2 (to swing from the reference lever position 97M to the first lever position 97L), one side (left side) of the machine body 2 in the body width direction is lowered. be able to. By swinging the horizontal adjustment lever 97 to the other side in the body width direction K2 (to swing from the reference lever position 97M to the second lever position 97R), the other side (right side) of the body 2 in the body width direction is lowered. be able to.

As shown in FIGS. 3 to 5 and the like, the seedling supply unit 12 is provided with an indicator 98. The indicator 98 indicates the inclination of the body 2 from the horizontal state. The indicator 98 is disposed between the first seedling supply device 12L and the second seedling supply device 12R.
As shown in FIGS. 4 and 5, the indicator 98 projects upward from the support frame 22 (from the top plate 22a). Specifically, the index member 98 protrudes upward from a second elongated hole 22g formed in the top plate 22a of the support frame 22. The second elongated hole 22g is formed in the central frame member 22M, and extends in the machine body width direction K2. The second elongated hole 22g is arranged in front of the first elongated hole 22f.

  The indicator body 98 can swing to one side (left side) and the other side (right side) in the body width direction K2 along the second elongated hole 22g. Specifically, the index body 98 can swing in the first index direction (the direction of the arrow L in FIG. 5) and the second index direction (the direction of the arrow R in FIG. 5) with respect to the reference index position M. In FIGS. 4 and 5, the index at the reference index position M is denoted by reference numeral 98M, the index that swings in the first index direction L is denoted by reference 98L, and the index that has moved in the second index direction R is denoted by reference numeral. 98R. The reference index position M is located at the center of the second elongated hole 22g in the body width direction K2. The first index direction L is one side (left side) of the reference index position M in the body width direction K2. The second index direction R is the other side (right side) of the body width direction K2 with respect to the reference index position.

  As shown in FIG. 5, a weight 99 is provided below the indicator 98. In the case of the present embodiment, the weight 99 is formed integrally with the indicator 98, but the weight 99 may be attached to the lower portion of the indicator 98 as a separate member from the indicator 98. Above the weight 99, a support shaft 79 that supports the index member 98 so as to swing is provided. The support shaft 79 is a shaft extending in the front-rear direction, and is supported by a shaft support member 112 provided below the support frame 22. The pivot member 112 is attached to the lower surface of the top plate 22 a of the support frame 22. The indicator body 98 is oriented vertically by the vertically downward gravity acting on the weight 99 without being affected by the inclination of the ground or the inclination of the body 2. The index body 98 is located at the reference index position M when the body 2 is horizontal. When one side (left side) of the body 2 in the body width direction descends, the index body 98 tilts to the other side (right side) with respect to the body 2 and moves in the second index direction R. When the other side (right side) of the body 2 in the body width direction descends, the index body 98 tilts to one side (left side) with respect to the body 2 and moves in the first index direction L.

  As shown in FIG. 4, the reference lever position 97M and the reference index position M are arranged on the same straight line L1 extending in the front-rear direction. As shown in FIG. 3, the straight line L1 is a straight line that extends in the front-rear direction K1 through the center of the support frame 22 in the body width direction K2. The first lever position 97L and the first index direction (leftward) L are on the same side (left side) with respect to the straight line L1. The second lever position 97R and the second index direction (rightward) R are on the same side (right side) with respect to the straight line L1.

As shown in FIGS. 3 to 5, a reference body 108 is provided in front of the index body 98. The reference body 108 is provided behind the lever 109. The lever 109 is a lever for adjusting the depth of planting of seedlings by the below described planting tools 37L, 37R, 38L, 38R. The lever 109 can swing forward or backward.
The reference body 108 is provided to visually indicate to the operator that the index body 98 is at the reference position. The reference body 108 is attached to the body 2, and inclines in the same direction as the body 2 when the body 2 is inclined. As shown in FIG. 5, the reference body 108 has a lower portion attached to the pivot support member 112 below the top plate 22a, and an upper portion protruding upward from the top plate 22a.

  The reference body 108 is configured as a plate having an opening 108a whose upper edge is arc-shaped. A reference piece 108b is provided in the opening 108a. The reference piece 108b is provided at the center of the opening 108a in the body width direction K2, and extends rearward and downward from the upper edge of the opening 108a. The opening 108a is provided at a position where the opening 108a overlaps with the indicator 98 as viewed from the rear. When the index member 98 is at the index reference position 98M, the reference piece 108b is located at a position overlapping with the index member 98 when viewed from behind.

As shown in FIG. 43, the chairs 13L and 13R are arranged behind the horizontal adjustment lever 97 and the index member 98. The horizontal adjustment lever 97 is arranged behind the index body 98. Therefore, the horizontal adjustment lever 97 is disposed closer to the chairs 13L and 13R than the index body 98 in the front-rear direction.
The direction of the line of sight of the worker sitting on the chairs 13L and 13R is the direction of the arrow A1 (the direction from the rear to the front) shown in FIG. Therefore, when the worker sitting on the chairs 13L, 13R faces forward, the horizontal adjustment lever 97 is visually recognized on the near side, and the index body 98 is visually recognized on the rear side of the horizontal adjustment lever 97. In addition, as shown in FIGS. 4 and 5, the reference body 108 is visually recognized behind the index body 98.

  Note that the chairs 13L and 13R may be disposed in front of the horizontal adjustment lever 97 and the indicator 98. In this case, the horizontal adjustment lever 97 is disposed in front of the index body 98. Further, the reference body 108 is arranged behind the index body 98. In this case, when the worker sitting on the chairs 13L and 13R faces rearward, the horizontal adjustment lever 97 is visually recognized on the near side, and the indicator body 98 is visually recognized on the rear side of the horizontal adjustment lever 97. Further, the reference body 108 is visually recognized behind the index body 98.

Since the chairs 13L, 13R, the horizontal adjustment lever 97, and the index member 98 are in the above-described positional relationship, the worker confirms the position of the index member 98 in a state of sitting on the chairs 13L, 13R. It is possible to grasp the presence / absence of the tilt, the tilt direction, and the direction in which the horizontal adjustment lever 97 should be operated.
Specifically, when the index body 98 overlaps the reference piece 108b, it can be grasped that the body 2 is not tilted (horizontal). In this case, the horizontal adjustment lever 97 only needs to maintain the reference lever position 97M, and does not need to be operated.

  When the index body 98 is located on one side (left side) of the body width direction K2 with respect to the reference piece 108b, the operator moves the horizontal adjustment lever 97 to one side of the body width direction K2 (that is, with the inclination direction of the index body 98). (In the same direction). In this case, since the body 2 is inclined downward to the right (the right side is descending), the horizontal adjustment lever 97 is swung from the reference lever position 97M to the first lever position 97L, whereby the body 2 is tilted. Can be lowered by lowering one side (left side) in the body width direction K2.

  When the index member 98 is located on the other side (right side) of the body width direction K2 with respect to the reference piece 108b, the operator moves the horizontal adjustment lever 97 to the other side of the body width direction K2 (that is, with the inclination direction of the index body 98). (In the same direction). In this case, since the fuselage 2 is inclined downward to the left (the left side is descending), the horizontal adjustment lever 97 is swung from the reference lever position 97M to the second lever position 97R, whereby the body 2 is tilted. The other side (right side) in the machine body width direction K2 can be lowered to make the machine body 2 horizontal.

  As described above, when the body 2 is tilted, the operator can return the body 2 to the horizontal level by operating the horizontal adjustment lever 97 in the same direction as the tilt direction of the index body 98. Therefore, the operator can intuitively grasp the direction in which the horizontal adjustment lever 97 should be operated by looking at the indicator body 98 without paying attention to the direction in which the body 2 is inclined. Can operate correctly.

Next, with reference to FIGS. 6 to 11, the transplant portion 11 will be described in detail.
As shown in FIGS. 6 and 7, the transplant unit 11 has a transplant frame 23.
The transplant frame 23 includes a main frame 24, a first attachment member 25L, a second attachment member 25R, and a plurality of frame members (an upper frame member 27, a lower frame member 28, and a front frame member 29).

  The main frame 24 is attached to a front part of the body 2. The center of the main frame 24 in the body width direction K2 coincides with the center of the body 2 in the width direction K2. The first attachment member 25L is fixed to a lower portion on the left side of the main frame 24 and is fixed to a front portion of the deck 10L. The second mounting member 25R is fixed to a lower portion on the right side of the main frame 24 and is fixed to a front portion of the deck 10R.

  The upper frame member 27 has a rear portion 27a extending forward from an 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 going forward. The lower frame member 28 is fixed to the body 2 below the main frame 24 and extends forward from the body 2. The upper frame member 27 and the lower frame member 28 are located at the center of the body in the width direction K2.

The front frame member (front frame) 29 is located at the front end of the upper frame member 27 and the lower frame member 28, and extends in the machine body width direction K2. At the center of the front frame member 29, the front ends of the upper frame member 27 and the lower frame member 28 are fixed.
As shown in FIG. 6 and FIG. 7, the implanted portion 11 is provided with a drive shaft 31 that is driven to rotate around a horizontal axis. The drive shaft 31 is formed of, for example, a hexagonal bar. The drive shaft 31 is provided at a lower front portion of the main frame 24 so as to extend in the machine body width direction K2. 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 is rotatably supported at a central portion thereof by the shaft support member 32 via a bearing member.

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 attachment 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. 6 to 8, the transplant unit 11 has a first transplanting device 36L and a second transplanting device 36R. The first planting device 36L is disposed in front of the left side of the main frame 24 and on the left side of the upper frame member 27 and the lower frame member 28. The second planting device 36R is disposed in front of the right side of the main frame 24 and on the right side of the upper frame member 27 and the lower frame member 28.

  As shown in FIGS. 6 to 9, the first planting device 36 </ b> L has a plurality of planting tools (first planting tool 37 </ b> L, third planting tool 38 </ b> L) for planting seedlings in a field. The plurality of planting tools are supported by the first transmission 39L via a first lifting mechanism 40L and a first support 41L so as to be able to move up and down. The first planting tool 37L and the third planting tool 38L move up and down at the same time, are supplied with seedlings at the ascending position, descend while holding the seedlings, and enter the field (ridge) at the descending position to open. Thus, a planting hole is formed in the field, and the seedling is released and planted in the planting hole.

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

  As shown in FIGS. 6 and 8, the plurality of planting tools (the first planting tool 37L, the second planting tool 37R, the third planting tool 38L, and the fourth planting tool 38R) are arranged in the machine width direction. They are arranged side by side. The first planting tool 37L plants a seedling on one of the adjacent ridges. The second planting tool 37R plants a seedling on the other ridge among the adjacent ridges. The third planting device 38L is disposed on the opposite side (left side) of the first planting device 37L from the second planting device 37R. The fourth planting tool 38R is disposed on the opposite side (right side) of the second planting tool 37R from the first planting tool 37L.

In the present embodiment, the transplanter 1 is a four-row transplanter, in which two seedlings planted by the first planting device 36L and two seedlings planted by the second planting device 36R are arranged in the front-rear direction. This is a transplanter that performs staggered planting shifted to K1.
As shown in FIGS. 6 and 7, the first transmission 39L and the second transmission 39R are devices for transmitting the driving force of the drive shaft 31. The first transmission 39L is arranged on one end side of the drive shaft 31. The second transmission 39R is disposed on the other end side of the drive shaft 31 so as to face the first transmission 39L in the machine body width direction K2.

  The first transmission 39L has a support case 43L and a transmission mechanism 44L provided in the support case 43L. The support case 43L has a base (base of the first transmission 39L) 42L fixed to the front surface of the first mounting member 25L with bolts or the like, and is formed to project forward from the first mounting portion 25L. The base 42L is attached to the first attachment member 25L so that the position can be changed in the machine body width direction K2 (for example, the position can be changed to two positions). Accordingly, the position of the first transmission 39L (the 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 lifting mechanism 40L. The transmission mechanism 44L is provided with a first sprocket 46 attached to one end of the drive shaft 31 via a bearing member 45 and a second transmission shaft 49 provided at the front of the support case 43L so as to be integrally rotatable. 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 distal end side of the support case 43L (the first transmission 39L) is connected to the left side of the front frame member 29 by a first connecting member (side frame) 50L. The rear part of the first connecting member 50L is fixed to the front end side of the support case 43L. The front portion of the first connection member 50L is attached to an attachment stay 35L fixed to the front frame member 29 by a bolt or the like so as to be position-adjustable in the machine body width direction K2. The first connecting member (side frame) 50L extends rearward from the outside of the body of the front frame 29 (left portion).

  The configuration of the second transmission 39R is the same as that of the first transmission 39L, and will not be described. The second transmission 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 (base of the second transmission 39R) 42R fixed to the front surface of the second mounting member 25R by a bolt or the like so as to be changeable in the body width direction K2. Therefore, the position of the second transmission 39R (the 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 lifting mechanism 40R. The transmission mechanism 44R is configured similarly to the transmission mechanism 44L.

  The distal end side of the support case 43R (the second transmission 39R) is connected to the left side of the front frame member 29 by a second connecting member (side frame) 50R. The rear part of the second connecting member 50R is fixed to the distal end side of the support case 43R. The front portion of the second connecting member 50R is attached to an attachment stay 35R fixed to the front frame member 29 by a bolt or the like so as to be position-adjustable in the machine body width direction K2. The second connecting member (side frame) 50R extends rearward from the outside of the body of the front frame 29 (right portion).

That is, a frame is constituted by 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 member 29. I have. Thus, the first planting device 36L and the second planting device 36R are arranged in the frame and protected.
As shown in FIG. 6, the first lifting mechanism 40L and the second lifting mechanism 40R are arranged side by side in the direction along the drive shaft 31 (machine body width direction K2). The first elevating mechanism 40L is disposed inside the machine at the front of the first transmission 39L. The first elevating mechanism 40L includes a first rotating case 51 rotatably supported by a support case 43L via a transmission shaft 49, and a second rotating case rotatably supported on a free end side of the first rotating case 51. And a case 52. 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. A rear portion of the first support 41L is suspended (biased upward) by a spring (not shown).

  In the first lifting mechanism 40L, the first rotating case 51 is driven to rotate by the transmission shaft 49, and the second rotating case 52 is moved 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. When the first rotating case 51 is driven to rotate, the first support 41L moves up and down, and accordingly, the first planting tool 37L and the third planting tool 38L move up and down. That is, the first lifting mechanism 40L is supported by the first transmission 39L and raises and lowers the first planting device 37L and the third planting device 38L by the power of the first transmission 39L.

  The second elevating mechanism 40R is disposed inside the machine at the front of the second transmission 39R. The second elevating mechanism 40R includes a first rotating case 51 rotatably supported by a supporting case 43R via a transmission shaft 49, and a second rotating case rotatably supported on a free end side of the first rotating case 51. And a case 52. The second support 41R is supported by the second rotating case 52, and the second implant 37R and the fourth implant 38R are attached to the second support 41R.

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

  As shown in FIGS. 6 and 9, the first support 41L is disposed on the inner side of the first elevating mechanism 40L in the machine. The first support 41L connects the first member 53L that supports the first implant 37L, the second member 54L that supports the third implant 38L, and the first member 53L and the second member 54L. And a plurality of connecting members 55L. The first member 53L and the second member 54L are arranged at an interval in the machine body width direction K2. The plurality of connecting members 55L are arranged between the first member 53L and the second member 54L. The first implanting tool 37L is arranged on the rear side of the first member 53L in the inside of the machine. The third planting device 38L is arranged on the outer side of the body at the rear of the second member 54L.

  As shown in FIGS. 6 and 9, the second support 41R is disposed on the inner side of the second elevating mechanism 40R in the machine. The second support 41R connects the first member 53R that supports the second implant 37R, the second member 54R that supports the fourth implant 38R, and connects the first member 53R and the second member 54R. And a plurality of connecting members 55R. The configuration of the first member 53, the second member 54, and the plurality of connecting members 55R is the same as that of the first support 41L, and thus the description is omitted. The second implant 37R is disposed on the inner side of the machine body at the rear of the first member 53R. The fourth implanting tool 38R is disposed on the outer side of the vehicle body at the rear of the second member 54R.

  As shown in FIG. 11, the first implanting tool 37L is supported by a first member 53L of a first support 41L so as to be able to open and close forward and backward by a first support mechanism 56L. Referring to FIG. 11, the second implant 37R, the third implant 38L, and the fourth implant 38R will also be described. The second implant 37R includes the first member 53R of the second support 41R. Are supported by the second support mechanism 56R so that they can be opened and closed back and forth. The third implant 38L is supported by the second member 54L of the first support 41L so as to be openable and closable by the third support mechanism 57L. The fourth implanting tool 38R is supported by the second member 54R of the second support 41R so as to be able to open and close forward and backward by a fourth support mechanism 57R.

Since the structure of the first planting tool 37L to the fourth planting tool 38R is the same, the structure of the first planting tool 37L will be described as a representative, and the structure of the second planting tool 37R to the fourth planting tool 38R will be described. Description is omitted.
As shown in FIGS. 10 and 11, the first implanting tool 37 </ b> L has a first component 58 on the front side and a second component 59 on the rear. In a closed state (a state in which the first component portion 58 and the second component portion 59 overlap in the front-rear direction K1), the first implanting tool 37L has an upward opening shape and a shape that tapers downward in a side view. Present. Further, the first component 58 and the second component 59 are curved in a substantially arc shape in plan view, and are arranged with their open sides (concave sides) facing each other. The first planting device 37L opens when the first component 58 and the second component 59 are separated from each other in the front-rear direction K1.

A first mounting bracket 61 is fixed to an upper front side 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 structure of the first support mechanism 56L to the fourth support mechanism 57R is 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. 10 and 11, the first support mechanism 56 </ b> L has a first swing member 63, a second swing member 64, a first fixture 65, and a second fixture 66. The upper front portion of the first swing member 63 is supported by the first member 53L of the first support 41L so as to be rotatable around the horizontal axis by the pivot 67. The rear portion of the upper part of the second swing member 64 is supported by the first member 53L of the first support 41L so as to be rotatable around the horizontal axis by the pivot 68. An engaging portion (roller) 69 is provided at a rear portion of the upper portion of the first swing member 63. An open engagement recess 70 is formed in the front of the upper part of the second swing member 64 at the front. The engaging portion 69 is inserted into and engaged with the engaging concave portion 70.

The first fixture 65 has a first plate 65A fixed to the first swinging member 63 and a second plate 65B fixed to the first plate 65A. The lower part of the second plate 65B protrudes downward from the first plate 65A. A first mounting bracket 61 is mounted to a lower portion of the second plate 65B via bolts or the like.
The second attachment 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 protrudes downward from the third plate 66A. The second mounting bracket 62 is mounted to the lower portion of the fourth plate 66B via bolts or the like.

The first support mechanism 56L has a spring 71 that urges the first implanting tool 37L in the closing direction.
In FIG. 11, 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. When the engaging portion 69 moves up and down, the second swinging member 64 swings back and forth around the pivot 68, and the second component portion 59 swings back and forth. Thus, the first implant 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 in the same operation.

  As shown in FIGS. 10 and 11, the first planting device 36L has a first opening / closing mechanism 72L that opens and closes the first planting device 37L. The second implanting device 36R has a second opening / closing mechanism 72R that opens and closes the second implanting tool 37R. Since the first opening and closing mechanism 72L and the second opening and closing mechanism 72R have the same configuration, the first opening and closing mechanism 72L will be described, and the description of the second opening and 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 rotating case 52, and rotates with the rotation of the second rotating case 52. The cam 73 has a pressing portion 73a having a large radial projection and a pressing release portion 73b having a small radial projection. The cam roller 74 contacts the outer periphery of the cam 73. The upper portion of the cam link 75 is supported by the first member 53L by a pivot 78 so as to be rotatable around a horizontal axis. A cam roller 74 is pivotally supported midway in the vertical direction of the cam link 75. One end of the opening / closing rod 76 is pivotally connected to a lower portion of the cam link 75, and the other end of the opening / closing rod 76 is pivotally connected to a lower portion of the first swing member 63.

  From before the top dead center position to just before the bottom dead center position of the vertical movement 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 enters 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, and the first implant 37L is opened.

The second implanting tool 37R is also opened and closed by the same operation by the second opening and closing mechanism 72R.
As shown in FIG. 10, 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 and closing mechanism 72L. The second implanting device 36R has a second interlocking mechanism 81R that opens and closes the fourth implanting tool 38R in conjunction with the second opening and 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. 10, the first interlocking mechanism 81L includes an interlocking link 82, a connecting member 83, and a connecting rod 84. The upper part of the interlocking link 82 is supported by the second member 54 of the first support body 41L by a pivot 85 so as to be rotatable around a horizontal axis. The pivot 85 is provided concentrically with the pivot 78. A lower front portion of the interlocking link 82 is connected to the cam link 75 by a connecting member 83. Accordingly, the interlocking link 82 swings integrally with the cam link 75. One end of the connecting rod 84 is pivotally connected to a lower portion of the interlocking link 82. The other end of the connecting rod 84 is pivotally connected to a first swing member 63 that swingably supports the first component 58 of the third implant 38L.

In the above first opening / closing mechanism 72L, the third linking tool 38L opens and closes via the connecting rod 84 by swinging the interlocking link 82 in conjunction with the swinging of the cam link 75 back and forth. In a similar operation, the fourth implant 38R opens and closes in conjunction with the opening and closing operation of the second implant 37R by the second interlocking mechanism 81R.
As shown in FIG. 8, the transplanter 1 includes a guide member that guides the seedlings supplied from the first seedling supply device 12L and the second seedling supply device 12R of the seedling supply unit 12 to a planting tool. The guide member includes a first relay guide 87L and a second relay guide 87R.

  The first planting device 36L is provided with a first relay guide 87L for guiding the seedling to the first planting device 37L and the third planting device 38L. Further, the second planting device 36R is provided with a second relay guide 87R for guiding the seedling to the second planting device 37R and the fourth planting device 38R. The first relay guide 87L is provided below the first position X1 and the second position X2 (see FIG. 10) of the first seedling supply device 12L. The second relay guide 87R is provided below the first position X1 and the second position X2 of the second seedling supply device 12R. In other words, the first relay guide 87L and the second relay guide 87R are located below the seedling supply cups 14A and 14B at the first position X1 and the second position X2.

  The first relay guide 87L includes a first guide 88L that guides the seedling to the first planting tool 37L and a third guide 89L that guides the seedling to the third planting tool 38L. The second relay guide 87R includes a second guide 88R that guides the seedling to the second planting tool 37R, and a fourth guide 89R that guides the seedling to the fourth planting tool 38R. The first guide 88L, the second guide 88R, the third guide 89L, and the fourth guide 89R are formed in a quadrangular pyramid shape (or a conical shape) having a shape tapered downward and having upper and lower portions opened. I have.

As shown in FIG. 9, 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.
Seedlings dropped from the seedling supply cups 14A and 14B at the first position X1 and the second position X2 are passed through the first relay guide 87L and the second relay guide 87R to the first planting tool 37L and the second planting tool 37R. , The third planting device 38L and the fourth planting device 38R. That is, the space between the seedling supply cups 14A and 14B and the first relay guide 87L and the second relay guide 87R in the up-down direction is the transfer portion 77L and 77R of the seedling from the seedling supply portion 12 to the transplant portion 11 (FIG. 8). See).

  Here, the first planting tool 37L, the third planting tool 38L, and the first relay guide 87L move up and down at the same time, and the second planting tool 37R, the fourth planting tool 38R, and the second relay guide 87R move up and down at the same time. . The delivery of the seedlings from the seedling supply unit 12 to the transplanting unit 11 is performed when the planting tool and the guide member are raised. For this reason, the delivery unit 77L provides a space between the seedling supply cups 14A, 14B and the first relay guide 87L when the first planting tool 37L, the third planting tool 38L, and the first relay guide 87L are raised (FIG. 8 (right part). The delivery part 77R is a space between the seedling supply cups 14A, 14B and the second relay guide 87R when the second planting tool 37R, the fourth planting tool 38R, and the second relay guide 87R are raised. (See the left part of FIG. 8).

It should be noted that the left planting tool (the first planting tool 37L, the third planting tool 38L, the first relay guide 87L) and the right planting tool (the second planting tool 37R, the fourth planting tool 38R). 8 and the second relay guide 87R), but FIG. 8 shows a state where both the left-side planting tool and the like and the right-side planting tool and the like have risen for convenience of explanation.
FIG. 12 is a diagram illustrating a configuration of a power transmission mechanism 111 that transmits power from the prime mover E1 to the transplanting unit 11 and the seedling supply unit 12. After the power from the prime mover E1 is transmitted to the transmission case M1, the power is transmitted to the clutch housing C1 via a transmission shaft, a gear mechanism, and the like. The clutch housing C1 accommodates a power branch portion including a gear mechanism and the like, and the power transmitted to the clutch housing C1 is branched and output to one and the other. The power output to one side is transmitted to the drive shaft 31 (see FIGS. 6 and 7) of the transplant unit 11. The power output to the other is transmitted to the seedling supply unit 12.

A power cutoff mechanism 130 is provided on a power transmission path for transmitting power from the clutch housing C1 to the seedling supply unit 12. The power cutoff mechanism 130 can allow or cut off transmission of power to the seedling supply unit 12 by the power transmission mechanism 111.
The power cutoff mechanism 130 has a first transmission shaft 131, a second transmission shaft 132, and a relay 133. Power from the prime mover E1 is transmitted to the first transmission shaft 131 via the transmission case M1 and the clutch housing C1. The second transmission shaft 132 transmits the power output from the clutch housing C1 to the seedling supply unit 12.

  As shown in FIGS. 12 and 13, the first transmission shaft 131 is arranged below the power cutoff mechanism 130, and the second transmission shaft 132 is arranged above the power cutoff mechanism 130. A relay 133 is provided between the first transmission shaft 131 and the second transmission shaft 132. As shown in FIGS. 14 and 15, the relay 133 has a first disk 134, a second disk 135, an annular plate 136, and a biasing member 137.

  The first disk 134 is fixed to an upper part of the first transmission shaft 131. The second disk 135 is fixed to a lower part of the second transmission shaft 132. The upper surface of the first disk 134 and the lower surface of the second disk 135 are arranged to face each other. The diameter of the first disk 134 is larger than the diameter of the second disk 135. The first disc 134 has a first hole 134a and a second hole 134b. The first hole 134a is disposed inside (closer to the center of the disk) than the second hole 134b. A third hole 135a is formed in the second disk 135. The first hole 134a and the third hole 135a are disposed at positions overlapping in the vertical direction.

The annular plate 136 is disposed above the second disk 135. The annular plate 136 has an inner diameter smaller than the outer diameter of the second disk 135 and an outer diameter larger than the outer diameter of the second disk 135. The annular plate 136 has a fourth hole 136a. The fourth hole 136a is arranged at a position vertically overlapping the second hole 134b.
The biasing member 137 includes a spring 137a and a sphere 137b. The sphere 137b is fixed to the upper end of the spring 137a. The diameter of the sphere 137b is larger than the diameter of the third hole 135a. The lower end of the spring 137a is fitted in the first hole 134a of the first disk 134. Only the upper part of the sphere 137b is fitted in the third hole 135a of the second disk 135. The spring 137a urges the sphere 137b upward so as to press the sphere 137b against the third hole 135a.

  The annular plate 136 and the first disk 134 are fixed by screwing the bolts BL and the nuts NT. The shaft of the bolt BL is inserted through the fourth hole 136a of the annular plate 136 into the second hole 134b of the first disk 134, and the nut NL is screwed into the shaft. As a result, the annular plate 136 and the first disk 134 are relatively non-rotatably fixed. The second disk 135 is sandwiched between the annular plate 136 and the first disk 134.

  When the force that hinders the operation is not applied to the seedling supply unit 12, the force that hinders rotation does not act on the second disk 135. In this case, when the first disk 134 rotates with the rotation of the first transmission shaft 131, the rotational force of the first disk 134 is transmitted to the second disk 135 via the urging member 137. At this time, since the upper part of the sphere 137b of the urging member 137 is fitted in the third hole 135a, the sphere 137b is rotated around the axis of the first transmission shaft 131, so that the second disk 135 is rotated. Power is transmitted. Thereby, the second disk 135 rotates, and the second transmission shaft 132 rotates. That is, the rotation of the first transmission shaft 131 is transmitted to the second transmission shaft 132. In other words, power cutoff mechanism 130 allows transmission of power.

  When a force that hinders the operation is applied to the seedling supply unit 12, a force that hinders rotation acts on the second disk 135. In this case, when the first disk 134 rotates with the rotation of the first transmission shaft 131, the urging member 137 rotates around the axis of the first transmission shaft 131, but the rotation of the second disk 135 is hindered. Therefore, the sphere 137b is separated from the third hole 135a. Therefore, the rotational force of the first disk 134 is not transmitted to the second disk 135. That is, the first disk 134 idles with respect to the second disk 135. Thus, the rotation of the first transmission shaft 131 is not transmitted to the second transmission shaft 132. In other words, power cutoff mechanism 130 cuts off transmission of power.

  When the power cutoff mechanism 130 allows the transmission of power, the power output from the clutch housing C1 to the other is transmitted to the seedling supply unit 12 via the power cutoff mechanism 130. Specifically, the power output from the clutch housing C1 to the other is transmitted to the third sprocket 124 via the power cutoff mechanism 130, and rotates the third sprocket 124. The third sprocket 124 is disposed below the driving sprocket 18 of the second seedling supply device 12R, and is connected to the driving sprocket 18. Therefore, the driving sprocket 18 of the second seedling supply device 12R rotates with the rotation of the third sprocket 124. Thereby, the driven sprocket 19 and the transfer chain 20 of the second seedling supply device 12R rotate.

  A fourth sprocket 125 is disposed below the drive sprocket 18 of the first seedling supply device 12L. A chain 126 is wound around the third sprocket 124 and the fourth sprocket 125. Above the fourth sprocket 125, a first gear 127 is arranged. The first gear 127 is connected to the fourth sprocket 125, and rotates with the rotation of the fourth sprocket 125. The second gear 128 meshes with the first gear 127. The second gear 128 is disposed below the driving sprocket 18 of the first seedling supply device 12L, and is connected to the driving sprocket 18.

  When the third sprocket 124 is rotated by the power output from the clutch housing C1 to the other, this rotation is transmitted by the chain 126 and the fourth sprocket 125 is rotated. When the fourth sprocket 125 rotates, the first gear 127 and the second gear 128 rotate, and the driving sprocket 18 of the first seedling supply device 12L rotates. Thereby, the driven sprocket 19 and the transfer chain 20 of the first seedling supply device 12L rotate.

When power shutoff mechanism 130 interrupts the transmission of power, the power output from clutch housing C1 to the other is not transmitted to seedling supply unit 12. Specifically, since the power output from the clutch housing C1 to the other side is not transmitted to the third sprocket 124, the operation of the transfer mechanisms of the first seedling supply device 12L and the second seedling supply device 12R stops.
The provision of the power shut-off mechanism 130 described above allows the seedling supply unit 12 to be in a position where the operator accidentally puts a finger between the transfer chain 20 of the seedling supply unit 12 and the support frame 22, for example. On the other hand, when a force that hinders operation is applied, transmission of power from the prime mover E1 to the seedling supply unit 12 is shut off. Thereby, the operation of the seedling supply unit 12 (the operation of the transfer mechanism such as the rotation of the transfer chain 20) stops, so that it is possible to prevent the worker from being injured or the seedling supply unit 12 from being damaged.

  As shown in FIG. 9 and FIGS. 16 to 18, the transplanter 1 has a tube (hereinafter, referred to as “tube”) that guides water to guide members (first guide 88L, second guide 88R, third guide 89L, and fourth guide 89R). 94, 95). Water is supplied to the tubes 94 and 95 from an irrigation tank described later. The tubes 94 and 95 are made of a material such as bendable rubber.

The tubes 94 and 95 include a first tube 94L, a second tube 94R, a third tube 95L, and a fourth tube 95R. The first tube 94L guides water to the first guide 88L. The second tube 94R guides water to the second guide 88R. The third tube 95L guides water to the third guide 89L. The fourth tube 95R guides water to the fourth guide 89R.
The positions of the distal ends of the tubes 94 and 95 relative to the guide member are fixed. Specifically, the relative position of the distal end of the first tube 94L with respect to the first guide 88L is fixed. The relative position of the tip of the second tube 94R with respect to the second guide 88R is fixed. The relative position of the distal end of the third tube 95L with respect to the third guide 89L is fixed. The relative position of the tip of the fourth tube 95R with respect to the fourth guide 89R is fixed.

  As shown in FIG. 17, the first tube 94L has a main tube 94La, a branch portion 94Lb, and a branch tube 94Lc. The base end of the main tube 94La is connected to an irrigation tank via a water supply pump (not shown). The branch portion 94Lb is provided on the distal end side of the main tube 94La, and has one inlet port and two outlet ports. The distal end of the main tube 94La is connected to the inlet port. The branch tubes 94Lc are connected to two outlet ports of the branch portion 94Lb, respectively. As a result, the water guided from one main tube 94La is divided into two branch tubes 94Lc and flows. The branch tubes 94Lc branched into a plurality (two) from the branch portion 94Lb are mounted on a plurality (two) of mounting portions 96A and 96B, respectively, which will be described later.

  The configuration of the second tube 94R, the third tube 95L, and the fourth tube 95R is the same as that of the first tube 94L. As shown in FIG. 17, the second tube 94R has the same main tube 94Ra, branch portion 94Rb, and branch tube 94Rc as the first tube 94L. The third tube 95L also has the same main tube 95La, branch portion 95Lb, and branch tube 95Lc as the first tube 94L. The fourth tube 95R also has the same main tube 95Ra, branch portion 95Rb, and branch tube 95Rc as the first tube 94L.

  As shown in FIGS. 9, 17, and 18, the guide members (the first guide 88L, the second guide 88R, the third guide 89L, and the fourth guide 89R) are positioned at the distal ends of the tubes 94 and 95 with respect to the guide members. Has a mounting portion 96 for holding the. The mounting portion 96 has a cylindrical shape with upper and lower portions opened, and is mounted by inserting the distal ends of the tubes 94 and 95 from above.

The configuration of the mounting portion 96 of each guide member (the first guide 88L, the second guide 88R, the third guide 89L, the fourth guide 89R) is the same.
As shown in FIGS. 17 and 18, the mounting portion 96 includes two mounting portions 96A and 96B. The distal end portion of one of the two branch tubes 94Lc of the first tube 94L is mounted on one mounting portion 96A. The distal end of the other branch tube of the two branch tubes 94Lc of the first tube 94L is mounted on the other mounting portion 96B.

  As shown in FIG. 17, the main tube 94La of the first tube 94L and the main tube 95Ra of the fourth tube 95R are connected to the front frame member (front frame) 29 and the second connecting member (side frame) 50R by the tying tool 151. Is attached along. Specifically, the base end sides of the main tubes 94La and 95Ra are attached along the second connecting member (side frame) 50R by the tying tool 151, and extend forward from the rear. The distal end side of the main tube 94La is attached to the left side along the front frame member (front frame) 29 by the binding device 152, and then extends rearward to be connected to the branch portion 94Lb. The distal end side of the main tube 95Ra extends leftward along the front frame member (front frame) 29, and then extends rearward and is connected to the branch portion 95Lb.

  The main tube 94Ra of the second tube 94R and the main tube 95La of the third tube 95L are attached along the front frame member (front frame) 29 and the first connecting member (side frame) 50L by the tying tool 153. ing. Specifically, the base end sides of the main tubes 94Ra and 95La are attached along the first connecting member (side frame) 50L by the tying tool 153, and extend forward from the rear. The distal end side of the main tube 94Ra is attached to the front frame member (front frame) 29 by the tying tool 152, extends rightward, and then extends rearward to be connected to the branch portion 94Rb. The distal end side of the main tube 95La extends rightward along the front frame member (front frame) 29, and then extends rearward to be connected to the branch portion 95Rb.

Note that the binding positions of the binding tools 151, 152, and 153 can be changed as appropriate. Also, the number of ties can be increased or decreased.
As shown in FIGS. 19 and 20, the transplanter 1 includes a plurality of ground members 160 that ground on the ridge, a plurality of support members 170 that swingably support the ground member 160 with respect to the body 2, and a support member. And a ridge height detection member 180 for detecting a ridge height based on the swing of the 170.

  The ground contact member 160 detects the height of the ridge by rolling on the upper surface of the ridge, and also functions as a soil covering ring that covers the periphery of the seedling planted by the seedling planting devices 36L and 36R with soil. The grounding member 160 includes a first grounding member 161L, a second grounding member 161R, a third grounding member 162L, and a fourth grounding member 162R. The first grounding member 161L, the second grounding member 161R, the third grounding member 162L, and the fourth grounding member 162R are each composed of a pair (two) of grounding rollers.

As shown in FIG. 19, the first grounding member 161L is provided on the first planting device 37L side. The second grounding member 161R is provided on the second implant 37R side. The third grounding member 162L is provided on the third planting device 38L side. The fourth grounding member 162R is provided on the fourth implant 38R side.
Specifically, the first grounding member 161L is disposed on one side (left side) of the first planting device 37L in the machine width direction (left side), and the other side of the first planting device 37L in the machine width direction (left side). And the other grounding member 161Lb disposed on the right side). The second grounding member 161R is disposed on one side (left side) of the second planting tool 37R in the machine width direction and on the other side (right side) of the second planting tool 37R in the machine width direction. And the other grounding member 161Rb arranged. The third grounding member 162L is disposed on one side (left side) of the third planting tool 38L in the machine width direction (left side) and on the other side (right side) of the third planting tool 38L in the body width direction. And the other grounding member 162Lb arranged. The fourth grounding member 162R is disposed on one side (left side) of the fourth planting tool 38R in the machine width direction and on the other side (right side) of the fourth planting tool 38R in the machine width direction. And the other grounding member 162Rb arranged.

  As shown in FIG. 19, the support member 170 includes a first support member 171L, a second support member 171R, a third support member 172L, and a fourth support member 172R. The first support member 171L supports the first grounding member 161L so as to swing upward or downward with respect to the body 2. The second support member 171R supports the second grounding member 161R so as to swing upward or downward with respect to the body 2. The third support member 172L supports the third grounding member 162L so as to swing upward or downward with respect to the body 2. The fourth support member 172R supports the fourth grounding member 162R so as to swing upward or downward with respect to the body 2.

  The first support member 171L and the second support member 171R are arranged at the center in the machine body width direction. Specifically, the first support member 171L and the second support member 171R are arranged at positions adjacent to each other with a center portion in the machine body width direction interposed therebetween. The third support member 172L and the fourth support member 172R are arranged outside the body with respect to the first support member 171L and the second support member 171R.

Since the structure of the first support member 171L to the fourth support member 172R is the same, the structure of the first support member 171L will be described as a representative, and the description of the structure of the second support member 171R to the fourth support member 172R will be omitted. I do.
As shown in FIGS. 19 and 20, the first support member 171L has a support arm 173 and a swing arm 174.

  The support arm 173 rotatably supports the first grounding member 161L. Support arm 173 includes one arm 173L that supports one of a pair of ground rollers forming first ground member 161L, the other arm 173R that supports the other of the pair of ground rollers, and connection arm 173M. On the other hand, one end (lower end) of the arm 173L rotatably supports the one ground member 161La of the first ground member 161L. One end (lower end) of the other arm 173R rotatably supports the other ground member 161Lb of the first ground member 161L. The other end (upper end) of the one arm 173L and the other arm 173R are connected by a connecting arm 173M.

  The swing arm 174 supports the support arm 173 so as to swing upward or downward with respect to the body 2. One end (lower end) of the swing arm 174 is connected to the connection arm 173M of the support arm 173, and extends diagonally forward and upward from the connection arm 173M. The other end (upper end) of the swing arm 174 is attached to a shaft 175 extending in the machine body width direction. The shaft 175 is supported below the front frame member 29 via a shaft support 176, and is rotatable around the axis. As the shaft body 175 rotates about the axis, the first support member 171L (the swing arm 174 and the support arm 173) swings upward or downward with respect to the body 2. Accordingly, the first support member 171L swings upward or downward with respect to the body 2 in accordance with a change in the height (undulation) of the ridge where the first grounding member 161L is grounded.

Similarly, the second support member 171R, the third support member 172L, and the fourth support member 172R have a height (undulation) of the ridge at which the second ground member 161R, the third ground member 162L, and the fourth ground member 162R are grounded. It swings upward or downward with respect to the body 2 in response to each change.
As shown in FIG. 20, the shaft 175 is connected to the adjustment levers 140L and 140R via the interlocking mechanism 178. The adjustment levers 140L and 140R are levers for adjusting the earth covering pressure by the earth covering ring (ground contact member) 160. As shown in FIG. 27, the adjustment lever 140L and the adjustment lever 140R are arranged side by side in the machine body width direction. The adjusting levers 140L and 140R can swing upward or downward independently of each other.

By swinging the adjustment levers 140L and 140R upward or downward, the shaft 175 can be rotated around the axis.
When the adjustment lever 140L is turned upward (in the direction of the arrow D1), the shaft 175 is turned clockwise in a left side view, and the first support member 171L (the swing arm 174 and the support arm 173) is moved to the body 2 Swings downward (in the direction of arrow E1). Thus, the earth covering pressure by the left earth covering wheel (first ground member 161L, third ground member 162L) increases.

When the adjustment lever 140L is rotated downward (in the direction of the arrow D2), the shaft 175 rotates counterclockwise as viewed from the left side, and the first support member 171L (the swing arm 174 and the support arm 173) is moved to the body. 2 (in the direction of arrow E2). Thereby, the earth covering pressure by the left earth covering ring (first ground member 161L, third ground member 162L) is reduced.
Similarly, when the adjustment lever 140R is rotated upward, the earth covering pressure by the right earth covering ring (the second ground member 161R and the fourth ground member 162R) increases. Further, when the adjustment lever 140R is rotated downward, the earth covering pressure by the right earth covering ring (the second grounding member 161R and the fourth grounding member 162R) decreases.

As shown in FIG. 19, the ridge height detection member 180 includes a first support member 171 </ b> L and a second support member 171 </ b> L arranged at the center in the body width direction among a plurality of support members (first to fourth support members). The member 171R is connected. The third support member 172L and the fourth support member 172R arranged on the outer side of the fuselage are not connected to the ridge height detection member 180.
The ridge height detecting member 180 has a detecting unit 181 and an interlocking unit 182.

  The detection unit 181 has a first vertical member 181L, a second vertical member 181R, and a horizontal member 181H. One end (lower end) of the first vertical member 181L is connected to the support arm 173 of the first support member 171L, and extends upward from the support arm 173. One end (lower end) of the second vertical member 181R is connected to the support arm 173 of the second support member 171R, and extends upward from the support arm 173. The horizontal member 181H connects the other end (upper end) of the first vertical member 181L and the other end (upper end) of the second vertical member 181R. The detection unit 181 moves up or down based on the swing of the first support member 171L and the second support member 171R that follow a change in the height of the ridge where the first ground member 161L and the second ground member 161R ground. , The height of the ridge is detected.

  The interlocking unit 182 interlocks the swing of the first support member 171L and the second support member 171R with the lifting and lowering of the body 2 by the body lifting mechanism. One end of the interlocking section 182 is connected to the detecting section 181 (horizontal member 181H), and the other end is connected to the spool of the above-described elevation control valve via a linking member such as a cable. The interlocking unit 182 moves the spool of the elevating control valve in response to the raising or lowering of the detecting unit 181. The movement of the spool of the lift control valve causes the rod of the lift cylinder to operate, thereby moving the body 2 up and down with respect to the wheels. Specifically, when the detection unit 181 moves up, the body 2 rises with respect to the wheels, and when the detection unit 181 moves down, the body 2 descends with respect to the wheels. Thus, the body 2 can be moved up and down according to the change in the height of the ridge.

The ridge height detection member 180 connects the plurality of support members (the first support member 171L and the second support member 171R) and detects the ridge height based on the swing of the plurality of support members, so that at least the ridge height is detected. The ridge height can be detected in consideration of the heights of the two ridges. This makes it possible to accurately detect an average ridge height in consideration of variations in the height of a plurality of ridges.
As shown in FIG. 19, the supporting members 170 adjacent in the machine body width direction are connected by a connecting member 177. Specifically, the connection member 177 connects the first support member 171L and the third support member 172L, and connects the second support member 171R and the fourth support member 172R. The connection members 177 are connected to the adjacent support members 170 (first support member 171L and third support member 172L, second support member 171R and fourth support member 172R) by bolts or the like, respectively. Note that the shape of the connecting member 177 is not limited to a flat plate-like member as illustrated.

As shown in FIGS. 43 to 45 and the like, the transplanter 1 includes a cover 190. The cover 190 is attached to the front of the body 2.
As shown in FIGS. 21 to 24, the cover 190 has a front plate portion 190F and side plate portions 190L and 190R. The front plate portion 190F and the side plate portions 190L and 190R are integrally formed. Although the front plate portion 190F and the side plate portions 190L and 190R are preferably formed as an integrally molded product, they may be combined after being formed as separate members.

  The front plate portion 190F is inclined so as to move forward as going downward from above. The front plate portion 190F has a central portion 190FM, a left portion 190FL, and a right portion 190FR. The central portion 190FM extends in the body width direction K2. The left portion 190FL is curved so as to shift rearward from the left end of the central portion 190FM toward the left (outside the fuselage). The right portion 190FR is curved so as to shift rearward from the right end of the central portion 190FM toward the right (outward of the fuselage). The central portion 190FM is provided with an extending portion 190a that extends cylindrically toward the rear. An opening 190b is formed in a region surrounded by the extension 190a. The front and rear sides of the front plate portion 190F communicate with each other via an opening 190b. Since the opening 190b is formed in a region surrounded by the extension 190a, a decrease in the strength of the cover 190 due to the opening 190b can be suppressed.

  The extension portion 190a is formed in a square tubular shape, and has an upper wall portion 190aU, a lower wall portion 190aD, a left wall portion 190aL, and a right wall portion 190aR. The upper wall portion 190aU shifts downward toward the rear. The lower wall portion 190aD extends horizontally rearward. The left wall portion 190aL shifts rightward toward the rear. The right wall portion 190aR shifts leftward as it goes rearward. As a result, the area of the opening 190b (the area in front view) gradually increases toward the front.

  The side plate portions 190L, 190R have bulging portions 190La, 190Ra. The bulging portion 190La is provided below the side plate portion 190L. The bulging portion 190Ra is provided below the side plate portion 190R. The bulging portion 190La bulges leftward. The bulging portion 190Ra bulges rightward. Thus, the bulging portions 190La and 190R bulge in a direction away from the body 2 (outside the body) when the cover 190 is attached to the body 2.

  The cover 190 has a mounting portion 191 for mounting to the body 2. The attachment part 191 has a first through hole 191a, a second through hole 191b, and a locking part 191c. The first through holes 191a are provided in the left portion 190FL and the right portion 190FR of the front plate portion 190F, respectively. The second through holes 191b are provided in the side plate portions 190L and 190R, respectively. The second through hole 191b is provided above the side plate portions 190L and 190R (above the bulging portions 190La and 190R). The locking portions 191c are provided on the bulging portions 190La and 190Ra, respectively. The locking portion 191c is formed by cutting a lower edge of the bulging portion 190La and a lower edge of the bulging portion 190Ra upward.

As shown in FIGS. 25 to 27, the attachment portion 191 of the cover 190 is attached to a first attachment member 192, a second attachment member 193, and a third attachment member 194 provided on the body 2. In FIG. 26, the mounting structure of the mounting portion 191 on the left side of the cover 190 is shown, but the mounting structure of the mounting portion 191 on the right side of the cover 190 is the same.
As shown in FIGS. 25 to 27, the first through hole 191 a of the mounting portion 191 is mounted on the first mounting member 192. As shown in FIGS. 16 and 17, the first attachment member 192 is attached to the front of the first connection member 50L and the second connection member 50R. The first mounting member 192 is provided with a screw hole. By inserting the bolt BL1 into the first through hole 191a of the cover 190 and screwing the bolt BL1 into the screw hole of the first attachment member 192, the attachment portion 191 is connected to the first attachment member 192 at the first through hole 191a. It is attached.

  As shown in FIGS. 25 to 27, the second through hole 191 b of the mounting portion 191 is mounted on the second mounting member 193. The second attachment members 193 are attached to the front of the left frame 22L and the front of the right frame 22R of the support frame 22, respectively. The second mounting member 193 has a screw hole. The bolt BL2 is inserted into the second through hole 191b of the cover 190, and the bolt BL2 is screwed into the screw hole of the second mounting member 193, so that the mounting portion 191 is connected to the second mounting member 193 in the second through hole 191b. It is attached.

  The locking part 191c of the mounting part 191 is mounted on the third mounting member 194. As shown in FIGS. 25 and 26, the third mounting member 194 is mounted on the columns 17L and 17R. As shown in FIGS. 43 and 45, the columns 17L and 17R are erected at the front of the decks 10L and 10R. The third mounting member 194 is provided with a protruding portion 194a protruding outward from the body. The protrusion 194a is formed of, for example, a screw head. By locking the locking portion 191c of the cover 190 to the projecting portion 194a, the mounting portion 191 is mounted to the third mounting member 194 at the locking portion 191c.

As described above, the cover 190 is attached to the body 2 by attaching the attachment portion 191 to the first attachment member 192, the second attachment member 193, and the third attachment member 194.
As shown in FIGS. 27 and 43, the upper edge of the cover 190 is along the peripheral edge of the support frame 22 in a state where the cover 190 is attached to the body 2. Specifically, the upper edge of the front plate portion 190F is along the front surface of the support frame 22 (the front plate 22d of the front frame member 22F). The upper edge of the side plate portion 190L extends along the left side surface of the support frame 22 (the left side plate 22b of the left frame member 22L). The upper edge of the side plate portion 190R is along the right side surface of the support frame 22 (the right side plate 22c of the right frame member 22R).

  As shown by phantom lines in FIGS. 19 and 20, the cover 190, at the time of being attached to the body 2, at least forwards and sides of the transfer portions 77 </ b> L, 77 </ b> R of the seedlings from the seedling supply portion 12 to the transplant portion 11. cover. Specifically, the front plate portion 190F covers the front of the transfer portions 77L and 77R, and the side plate portions 190L and 190R cover the sides of the transfer portions 77L and 77R. Thereby, the cover 190 functions as a windshield from the front and side. Therefore, the transfer of the seedlings from the seedling supply unit 12 to the transplanting unit 11 can be performed smoothly and reliably without being affected by a strong wind or a gust.

  As shown in FIG. 19, the cover 190 can be connected to the relay guide (the first relay guide 87L and the second relay guide 87L) from the lower ends of the seedling supply cups 14A and 14B regardless of whether the planting device and the relay guide are raised or lowered. Cover the range up to the upper end of the relay guide 87R). Further, the cover 190 covers most of the planting tools (the first planting tool 37R and the third planting tool 38R in FIG. 19) at the raised position, and covers the planting tool at the lowered position (the second planting tool 38R in FIG. 19). The planting tool 37L and the fourth planting tool 38L) are not covered.

As shown by phantom lines in FIG. 17, the swelling portions 190La and 190Ra house the irrigation tubes 94 and 95, respectively. Specifically, the swelling portions 190La and 190Ra house irrigation tubes 94 and 95 located outside the body of the first connecting member (side frame) 50L and the second connecting member (side frame) 50R. Is done.
As shown by phantom lines in FIG. 17, the cover 190 is configured to cover the front frame member 29, the first connecting member (side frame) 50 </ b> L, and the second connecting member (side frame) 50 </ b> R in a plan view U It is provided in a character shape. The bulging portions 190La and 190Ra cover the sides of the irrigation tubes 94 and 95. The front plate 190F covers the front of the irrigation tubes 94 and 95.

  Specifically, the bulging portions 190La and 190Ra cover the sides of the irrigation tubes 94 and 95 arranged along the first connecting member (side frame) 50L and the second connecting member (side frame) 50R. The front plate portion 190F covers the front of the irrigation tubes 94 and 95 arranged along the front frame member 29. This prevents the irrigation tubes 94 and 95 from coming off due to other objects coming into contact with or catching on the irrigation tubes 94 and 95.

  As shown in FIGS. 43 and 45, when the cover 190 is attached to the body 2, the rear edge of the cover 190 is located forward of the chairs 13L and 13R. Further, as shown in FIG. 44, the bulging portions 190La and 190Ra of the cover 190 bulge leftward and rightward (outward of the body) with respect to the body 2. As a result, a space is formed between the bulging portions 190La and 190Ra and the body 2, and the rear of the space is opened. Therefore, the worker sitting on the chairs 13L and 13R can visually recognize the portions (transfer portions 77L and 77R) covered by the cover 190 from behind the bulging portions 190La and 190Ra.

  The cover 190 is made of a transparent or translucent material. The cover 190 has a fixed shape. The cover 190 is made of, for example, a resin (hard resin) such as acrylic resin, polycarbonate, polyethylene terephthalate, polypropylene, ABS resin, polyvinyl chloride, or the like, or glass. However, the material forming the cover 190 is not limited to these. When the cover 190 is transparent or translucent, the portions covered by the cover 190 (transfer portions 77L, 77R, etc.) can be visually recognized from the front and side of the transplanter 1. Therefore, the state of the portion covered by the cover 190 can be checked without removing the cover 190.

  As shown in FIGS. 20, 27, and 43, adjustment levers 140L and 140R are inserted forward through openings 190b formed in front plate portion 190F. A setting plate 201 indicating the relationship between the position of the lever and the earth covering pressure is disposed near the rear of the opening 190b. A long hole extending in the up-down direction is formed in the setting plate 201, and the adjusting levers 140L and 140R are inserted into the long holes. The adjusting levers 140L and 140R are swingable along the elongated holes, and the earth pressure can be set by fixing the adjusting levers at a plurality of positions along the elongated holes.

The periphery of the adjustment levers 140L and 140R is surrounded by a rectangular tubular extension 190a, and the front ends of the adjustment levers 140L and 140R do not protrude from the cover 190. Therefore, unintended contact with the adjustment levers 140L and 140R can be prevented.
Next, a support structure for the chairs 13L and 13R will be described with reference to FIGS. 28, 29, and 45 show the support structure of the first chair 13L, but the same applies to the support structure of the second chair 13R.

The chairs 13L and 13R are supported by 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.
Each of the wheel supports 7L and 7R has a transmission case 100. The power of the prime mover E1 is output from the output shaft 102 via a transmission mechanism in the transmission case M1, and transmitted to the axles of the rear wheels 4L, 4R via a transmission mechanism (gear mechanism, transmission shaft, etc.) in the transmission case 100. Is done. Thereby, the rear wheels 4L and 4R are driven by the power of the prime mover E1. The transmission case 100 is provided swingably with respect to the body 2. Specifically, the transmission case 100 is provided so as to be swingable about the horizontal axis (about 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. As shown in FIGS. 28 and 29, the support mechanism 103 includes a support 104, a bracket 105, a support shaft 106, and a connecting member 107.
The strut 104 is disposed outside the body of the rear wheels 4L and 4R. The support 104 is formed of, for example, a cylindrical pipe such as a cylinder or a hexagonal cylinder. The lower part of the support 104 is connected to the bracket 105. As shown in FIG. 30, the connecting rod 30 extending downward from the lower surface of the seat 13a of the chairs 13L and 13R is fitted into the upper part of the support 104.

  The connecting rod 30 is formed from a cylindrical or hexagonal pipe. The connecting rod 30 is formed to have a thickness that allows it to be externally or internally fitted to the column 104. As can be seen from FIGS. 30 and 43, the connection rod 30 fitted into the support 104 is provided at a position offset from the center of the seat 13a of the chairs 13L and 13R. Specifically, the connection rod 30 extends downward from a position shifted rightward from the center in the width direction of the seat 13a of the chair 13L. The connection rod 30 extends downward from a position shifted leftward from the center of the seat 13a of the chair 13R in the width direction.

As shown in FIGS. 43 to 45, the pillar 104 includes a pillar 104L arranged on one side (left side) of the body 2 and a pillar 104R arranged on the other side (right side) of the body 2. . The connection rod 30 of the chair 13L is fitted into the support 104L. The connecting rod 30 of the chair 13R is fitted into the support 104R.
The chairs 13L and 13R are attached to the side of the seedling supply unit 12 by fitting the connecting rod 30 into the support 104 from above. In other words, the pillar 104 constitutes a mounting portion (hereinafter, referred to as a “first mounting portion 104”) for mounting the chairs 13L and 13R to the side of the seedling supply unit 12. The chairs 13L and 13R can be removed from the first mounting portion 104 by pulling out the connection rod 30 from the columns 104L and 104R. That is, the chairs 13L and 13R are detachable from the first mounting section 104. Further, the orientation of the chairs 13L and 13R when attached to the first attachment portion 104 can be changed around the central axis of the support 104.

In the present specification, unless otherwise specified, the chairs 13L and 13R are mounted on the first mounting portion 104 (see FIG. 43 (shown by a solid line), FIGS. 44 and 45) as a reference. The positional relationship between the chairs 13L and 13R and other components is described.
As shown in FIGS. 28 and 29, 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 inner side of the support column 104 in the machine, 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 column 104, and faces the first side plate 105a. The connecting portion 105c extends in the body width direction, and connects an upper portion of the first side plate 105a and an upper portion of the second side plate 105b, and a rear portion of the first side plate 105a and a rear portion of the second side plate 105b.

  The bracket 105 is pivotally supported by the transmission case 100. Specifically, the bracket 105 is pivotally supported by a first pivot shaft 141 with respect to a 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 that are arranged to face each other. The first pivot plate 100d1 is arranged on the inner side of the second side plate 105b. The second pivot plate 100d2 is disposed on the outer side of the body of the first side plate 105a. The first pivot 141 extends in the machine body width direction and penetrates the first side plate 105a, the second side plate 105b, the first pivot plate 100d1, and the second pivot plate 100d2. Thus, the bracket 105 can swing around the first pivot 141 with respect to the transmission case 100.

The support shaft 106 projects laterally from the body 2. One end side of the support shaft 106 (the inside of the body) is fixed to the body 2 and extends from the body 2 toward the outside of the body. The support shaft 106 is disposed 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 disposed on the inner side of the support 104 in the machine, and is located between the support 104 and the rear wheels 4L and 4R. The outer plate 107b is disposed on the outer side of the body of the column 104, and faces the inner plate 107a. The upper plate 107c connects the upper part of the inner plate 107a and the upper part of the outer plate 107b in front of the pillar 104.

  One end side (front side) of the connection member 107 is pivotally supported on the other end side (outside of the body) of the support shaft 106. Thereby, the connecting member 107 can swing upward or downward around the support shaft 106. The other end (rear side) of the connecting member 107 is pivotally supported by the bracket 105. Specifically, the other end of the connecting member 107 is pivotally supported by the second pivot shaft 142 with respect to the bracket 105. The other end of the connecting member 107 is disposed above the transmission case 100 and above the pivot plate 100d. The other end side of the inner plate 107a is arranged on the outer side of the body of the first side plate 105a of the bracket 105. The other end of the outer plate 107b is disposed on the inner side of the second side plate 105b of the bracket 105 in the machine. The cylinder 105d is fixed to the bracket 105, and the second pivot 142 is rotatably supported with respect to the cylinder 105d. The second pivot 142 extends in the machine body width direction, and penetrates the inner plate 107a, the outer plate 107b, and the cylinder 105d. Thus, the bracket 105 can swing upward or downward around the second pivot 142 with respect to the other end of the connecting member 107. The second pivot 142 is located above the first pivot 141. The support 104, the bracket 105, and the connecting member 107 constitute a chair support that supports the chairs 13L and 13R with respect to the support shaft 106.

  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-bar linkage. When the transmission case 100 swings upward or downward around the axis of the output shaft 102, the bracket 105 moves upward or downward. Therefore, when the transmission case 100 swings around the axis of the output shaft 102, the support 104 on which the bracket 105 is attached can be moved up and down without tilting. Therefore, the posture of the worker sitting on the chairs 13L and 13R supported by the support 104 is not impaired. In addition, the weight of the workers sitting on the chairs 13L and 13R can be dispersed and supported by the first pivot shaft 141 and the second pivot shaft 142 and the like.

  The transmission case 100 is slidable along the output shaft 102 and is movable in the machine width direction. The connecting member 107 is slidable along the support shaft 106 and is movable in the machine body width direction. Since the transmission case 100 and the connecting member 107 are connected via the bracket 105, they can be integrally moved in the body width direction (outside or inside the body). When the transmission case 100 and the connecting member 107 move outside the body, the chairs 13L and 13R and the rear wheels 4L and 4R move outside the body and separate from the body 2. When the transmission case 100 and the connecting member 107 move inside the machine, the chairs 13L and 13R and the rear wheels 4L and 4R move inside the machine and approach the machine 2. In other words, the transmission case 100, the output shaft 102, the connecting member 107, and the support shaft 106 constitute a moving mechanism that moves the chairs 13L, 13R and the rear wheels 4L, 4R toward or away from the body 2.

Due to the moving mechanism, the chairs 13L, 13R and the rear wheels 4L, 4R are on one side in the body width direction and approach to the body 2, and on one side in the body width direction, and And move in the direction away from each other.
FIG. 42 shows a state in which the chairs 13L and 13R and the rear wheels 4L and 4R are brought close to the body 2 (hereinafter, referred to as “approaching state”). FIG. 43 illustrates a state in which the chairs 13L and 13R and the rear wheels 4L and 4R are separated from the body 2 (hereinafter, referred to as a “separated state”).

  Further, the first mounting portion 104 to which the chairs 13L and 13R are mounted by the moving mechanism is also on one side in the body width direction and in the direction approaching the body 2 and on one side in the body width direction. And it can move in the direction away from the body 2. More specifically, the first mounting unit 104 includes a first position (the position shown in FIG. 43) on the side of the seedling supply unit 12 and a second position (see FIG. 43) closer to the seedling supply unit 12 than the first position. (The position indicated by reference numeral 42).

As shown in FIGS. 43 to 45, the transplanter 1 includes protective covers 110L and 110R that cover at least tread portions (ground portions) of the rear wheels 4L and 4R. The protective cover 110L is arranged above the rear wheel 4L and below the chair 13L. The protection cover 110R is disposed above the rear wheel 4R and below the chair 13R.
As shown in FIG. 31, FIG. 43, and FIG. 45, the transplanting machine 1 is provided with steps 120L, 120R that are used as footholds (place feet) when the operator gets on and off the chairs 13L, 13R. The getting on / off step 120L is arranged on one side (left side) in the body width direction. The getting on / off step 120R is arranged on one side (right side) in the body width direction. Although FIG. 31 shows the peripheral structure of the getting on / off step 120L, the same applies to the peripheral structure of the getting on / off step 120R.

  The getting on / off steps 120L, 120R are provided between the body 2 and the rear wheels (wheels) 4L, 4R and in front of or behind the chairs 13L, 13R. In the case of the present embodiment, the getting on / off step 120L is provided between the body 2 and the rear wheel 4L and behind the chair 13L. The step 120R is provided between the body 2 and the rear wheel 4R and behind the chair 13R.

The getting on / off step 120L is provided between the chair 13L and the first grip 91L in the machine body width direction. The getting on / off step 120R is provided between the chair 13R and the second grip 91R in the body width direction.
The getting on / off step 120L is located between the mounting table 121L on which the irrigation tank is mounted and the rear wheel (wheel) 4L. The getting on / off step 120R is located between the mounting table 121R and the rear wheel (wheel) 4R. The mounting table 121L is fixed to a rearward position on the left side of the body 2 and is located between the body 2 and a rear wheel (wheel) 4L. The mounting table 121R is fixed to a rearward position on the right side of the body 2 and is located between the body 2 and a rear wheel (wheel) 4R.

  As shown in FIG. 31, the mounting table 121L has a mounting plate 121a, a front plate 121b, and a rear plate 121c. As shown in FIGS. 31 and 43, the mounting table 121L is supported by a first support 122A and a second support 122B extending outward from the body 2 to the body. The first support body 122A is connected to the bottom surface of the mounting plate 121a, and can support the bottom surface of the irrigation tank mounted on the mounting table 121L. The second support 122B is connected to the rear plate 121c of the mounting table 121L, and can support the rear surface of the irrigation tank mounted on the mounting table 121L. The front side plate 121b is fixed to a rear portion of the deck 10L. The configuration and mounting structure of the mounting table 121R are the same as those of the mounting table 121L.

  As shown in FIGS. 44 and 45, holders 123L and 123R capable of holding an irrigation tank are provided below the chairs 13L and 13R. The holder 123L can hold the irrigation tank below the chair 13L and to the left of the rear wheel 4L. The holder 123R can hold the irrigation tank below the chair 13R and to the left of the rear wheel 4R. Thus, the watering tank can be mounted on the mounting tables 121L and 121R, and the watering tank can be held by the holders 123L and 123R.

  As shown in FIG. 31, the getting on / off steps 120L and 120R include a step plate 120a, a front connection plate 120b, and a rear connection plate 120c. The step board 120a is a board on which a worker puts his feet when getting on and off the decks 10L and 10R. The front connection plate 120b extends upward from the front of the step plate 120a. The rear connection plate 120c extends upward from the rear of the step plate 120a. Ends of the front connection plate 120b and the rear connection plate 120c on the inner side of the machine are connected to the mounting tables 121L and 121R. As a result, the boarding steps 120L and 120R are connected to the mounting tables 121L and 121R on the inboard side.

  As shown by arrows and imaginary lines in FIG. 31, the getting on / off steps 120L, 120R can swing upward or downward with respect to the mounting tables 121L, 121R. As a result, the getting on / off steps 120L and 120R accommodate the first position (see the solid line in FIG. 31) in which the step portion 120a extends downward under the chairs 13L and 13R, and the step portion 120a is stored (folded) on the body 2 side. The posture can be changed to the second posture (see the virtual line in FIG. 31).

  As shown in FIGS. 31 and 43, in the first posture, the step plate 120a is arranged so that one surface is directed upward and the other surface is directed downward so as to be substantially parallel (substantially horizontal) with the ground. You. The step board 120a is provided at a position lower than the seating surfaces of the chairs 13L and 13R in the first posture. More specifically, the step plate 120a is provided at a position lower than the support shaft 106. By setting the getting on / off steps 120L and 120R to the first posture, the operator can get on and off the chairs 13L and 13R with the step board 120a as a foothold (on the step board 120a). More specifically, in a state where the rear wheels 4L and 4R of the transplanter 1 are in the ridges (ridge grooves), the operator places his / her feet on the step plate 120a from behind the rear wheels 4L and 4R through the ridges, and holds the grip portions 91L and 4L. The user can get on the chairs 13L and 13R while holding the 91R by hand. In addition, the operator can move from the chairs 13L and 13R to the step board 120a and descend to the furrow while gripping the grip portions 91L and 91R by hand.

  In addition, as shown in FIG. 42, in the second posture, the step plate 120a is substantially perpendicular (substantially perpendicular) to the ground, with one surface facing the inside of the machine and the other surface facing the outside of the machine. It is arranged so that it becomes. The chairs 13L, 13R and the rear wheels 4L, 4R can be brought closer to the body 2 by setting (folding) the getting on / off steps 120L, 120R to the second posture (see FIG. 42). The width (length in the machine width direction) of the transplanter 1 can be reduced by setting the getting on / off steps 120L and 120R to the second posture and bringing the chairs 13L and 13R and the rear wheels 4L and 4R close to the machine body 2. it can. Thereby, the handling property (portability) when transporting the transplanter 1 is improved, and the space required for storage can be reduced.

The operation of moving the chairs 13L and 13R and the rear wheels 4L and 4R toward and away from the body 2 can be performed by the above-described moving mechanism. The moving mechanism enables the chairs 13L, 13R and the rear wheels 4L, 4R to approach the body 2 when the getting on / off steps 120L, 120R are at the second position.
As shown in FIG. 43, the transplanter 1 includes second getting on and off steps 129L and 129R. The second getting on / off step 129L is arranged on one side (left side) in the body width direction. The second getting on / off step 129R is arranged on the other side (right side) in the body width direction. The second getting on and off steps 129L and 129R are formed in an L shape in plan view.

The second getting on and off step 129L is arranged in front of the getting on and off step 120L and between the chair 13L and the body 2. The second getting on / off step 129R is disposed in front of the getting on / off step 120R and between the chair 13R and the body 2.
The second getting on and off steps 129L and 129R are the same as the getting on and off steps 120L and 120R. The posture can be changed between a first posture extending downwardly of the chairs 13L and 13R and a second posture which is stored (folded) in the body 2 side. When the chairs 13L and 13R and the rear wheels 4L and 4R are brought close to the body 2, the second getting on and off steps 129L and 129R are in the second posture.

As shown in FIGS. 31, 43, and 45, the second supports 155L and 155R are fixed to the second support 122B. The second columns 155L and 155R are formed of cylindrical or hexagonal pipes, like the columns 104.
The second supports 155L, 155R are fixed to the rear side of the second support 122B on the outside of the body. The second support columns 155L and 155R extend upward from the second support 122B. The second support 155 </ b> L is arranged on one side (left side) of the body 2. The second support 15R is disposed on the other side (right side) of the body 2. As shown in FIG. 41, the second pillars 155L, 155R are slightly inclined so as to go outward of the body as they go upward.

The second support 155L is disposed behind the support 104L and in the interior of the aircraft (rightward). The second support 155R is disposed rearward of the support 104R and in the interior of the aircraft (left). The second support 155 </ b> L is disposed on the left rear side of the seedling supply unit 12. The second support 155 </ b> R is disposed on the right rear side of the seedling supply unit 12.
As shown in FIG. 30, a connection rod 30 extending downward from the lower surface of the seat 13a of the chairs 13L, 13R can be fitted into the upper portions of the second columns 155L, 155R. The chairs 13L and 13R are mounted on the second columns 155L and 155R by fitting the connection rod 30 into the second columns 155L and 155R from above. As shown by the phantom lines in FIGS. 42 and 43, the chairs 13L and 13R mounted on the second columns 155L and 155R are located further inside the body than the first mounting portion 104. In other words, the second supporting columns 155L and 155R constitute a mounting unit (hereinafter, referred to as a “second mounting unit 155”) for mounting the chairs 13L and 13R more inside the body than the first mounting unit 104. .

  The chairs 13L and 13R are detachable from the second mounting portion 155. Further, the orientation of the chairs 13L and 13R when attached to the second attachment portion 155 can be changed around the central axis of the second attachment portion (second support) 155. 42 and 43, in the case of the present embodiment, the chairs 13L and 13R mounted on the second mounting portion 155 have the chair 13L facing the left front and the chair 13R facing the right front. I have.

The chairs 13L and 13R are arranged behind the seedling supply unit 12 in a state where the chairs 13L and 13R are attached to the second attachment unit 155. Further, the ends of the chairs 13L and 13R on the inboard side of the machine are arranged closer to the inside of the machine than the seedling supply unit 12 in a state where the chairs 13L and 13R are mounted on the second mounting portion 155.
The distance between the chair 13L and the chair 13R is such that the distance between the chair 13L and the chair 13R when attached to the second attachment portion 155 (shown by a virtual line in FIGS. 42 and 43) is equal to the distance between the chair 13L and the chair 13R when attached to the first attachment portion 104 (FIGS. 42 and 43). (Shown by a solid line). Therefore, when transporting or storing the transplanting machine 1, the chairs 13L and 13R are detached from the first mounting portion 104 and mounted on the second mounting portion 155, whereby the width of the transplanting machine 1 (the length in the machine width direction). ) Can be shortened.

  As shown by the phantom line in FIG. 42, when the chairs 13L and 13R are mounted on the second mounting portion 155, the width of the transplanter 1 is determined by moving the chairs 13L and 13R mounted on the first mounting portion 104 by the moving mechanism. Is shorter than the width of the transplanter 1 when it is brought close to. Therefore, by mounting the chairs 13L and 13R to the second mounting portion 155, the handling property (portability) when transporting the transplanter 1 is further improved, and the space required for storage can be further reduced. .

As shown in FIGS. 32 to 34, the transplanter 1 can include a support frame 200. The support frame 200 is a frame that supports a hood member 220 described later on the body 2. The support frame 200 is provided on the body 2. The support frame 200 is detachable from the body 2. The support frame 200 is composed of a cylindrical pipe or the like.
As shown in FIG. 36 and the like, the support frame 200 has vertical frames 201F and 201B, first horizontal frames 202L and 202R, second horizontal frames 203F and 203B, a connecting member 204C, and connection frames 205L and 205R.

  The vertical frame 201F is located at the front of the support frame 200. The vertical frame 201B is located at the rear of the support frame 200. As shown in FIG. 32, the vertical frame 201F is inclined with respect to the top plate 22a of the support frame 22, and extends so as to shift rearward as it goes upward. The vertical frame 201B extends vertically upward with respect to the top plate 22a of the support frame 22.

  As shown in FIG. 36 and the like, the vertical frame 201F includes four vertical frames (vertical frame 201F1, vertical frame 201F2, vertical frame 201F3, and vertical frame 201F4) arranged in the machine body width direction K2. The vertical frame 201F1 is arranged on the leftmost side. The vertical frame 201F2 is arranged on the rightmost side. The vertical frame 201F3 is arranged between the vertical frame 201F1 and the vertical frame 201F2. The vertical frame 201F4 is arranged between the vertical frame 201F2 and the vertical frame 201F3. The four vertical frames 201F1, 201F2, 201F3, and 201F4 have the same length and are arranged in parallel with each other.

  The vertical frame 201B includes four vertical frames (vertical frame 201B1, vertical frame 201B2, vertical frame 201B3, vertical frame 201B4) arranged in the machine body width direction K2. The vertical frame 201B1 is arranged on the leftmost side. The vertical frame 201B2 is arranged on the rightmost side. The vertical frame 201B3 is disposed between the vertical frame 201B1 and the vertical frame 201B2. The vertical frame 201B4 is disposed between the vertical frame 201B2 and the vertical frame 201B3. The vertical frame 201B1 and the vertical frame 201B2 are arranged in parallel with each other. The vertical frame 201B3 and the vertical frame 201B4 are arranged so as to approach each other downward.

A bridging member 211 extending in the body width direction K2 is bridged between a middle part of the vertical frame 201B3 and a middle part of the vertical frame 201B4. The lower end of the vertical frame 201B3 and the lower end of the vertical frame 201B4 are connected by a connection plate 212.
The vertical frame 201B1 and the vertical frame 201B2 have the same length. The vertical frame 201B3 and the vertical frame 201B4 have the same length. The lengths of the vertical frames 201B1 and 201B2 are shorter than the lengths of the vertical frames 201B3 and 201B4.

  The lower part of the vertical frame 201B1 and the lower part of the vertical frame 201B2 are not connected. Also, there is no connection between the vertical frame 201B1 and the vertical frame 201B3 and between the vertical frame 201B2 and the vertical frame 201B4. Therefore, it is possible to enter and exit the support frame 200 from between the vertical frame 201B1 and the vertical frame 201B3 and between the vertical frame 201B2 and the vertical frame 201B4.

  The first horizontal frame 202L is located at the upper left of the support frame 200. The first horizontal frame 202L extends in the front-rear direction K1, and connects the upper end of the vertical frame 201F1 and the upper end of the vertical frame 201B1. The first horizontal frame 202R is located at the upper right part of the support frame 200. The first horizontal frame 202R extends in the front-rear direction K1, and connects the upper end of the vertical frame 201F2 and the upper end of the vertical frame 201B2.

The second horizontal frame 203F is located at the upper front part of the support frame 200. The second horizontal frame 203F has an upper frame 203FU and a lower frame 203FD.
The upper frame 203FU is located in the upper front part of the support frame 200. The upper frame 203FU has an intermediate member 203UM and outer members 203UL and 203UR. The intermediate member 203UM is a cylindrical member, and the center in the length direction is disposed at the center in the machine body width direction K2. The outer members 203UL and 203UR extend outward from the body with respect to the intermediate member 203UM. Specifically, the outer member 203UL extends leftward with respect to the intermediate member 203UM. The outer member 203UR extends rightward with respect to the intermediate member 203UM.

  The upper frame 203FU is attached to the upper part of the vertical frames 201F1 to 201F4. The left part of the intermediate member 203UM is attached to the upper part of the vertical frame 201F3. The right part of the intermediate member 203UM is attached to the upper part of the vertical frame 201F4. The left part of the outer member 203UL is attached to the upper part of the vertical frame 201F1. The right part of the outer member 203UR is attached to the upper part of the vertical frame 201F2.

  The outer diameter of the outer members 203UL and 203UR is smaller than the inner diameter of the intermediate member 203UM. The outer members 203UL and 203UR have their ends on the inner side of the machine inserted into the intermediate member 203UM. Thus, the amount of protrusion of the outer members 203UL and 203UR with respect to the intermediate member 203UM can be changed. When the outer member 203UL moves to the left B1 with respect to the intermediate member 203UM, the amount of protrusion from the intermediate member 203UM increases, and when the outer member 203UL moves to the right B2 with respect to the intermediate member 203UM, the amount of protrusion from the intermediate member 203UM decreases. . When the outer member 203UR moves to the right B2 with respect to the intermediate member 203UM, the amount of protrusion from the intermediate member 203UM increases, and when the outer member 203UR moves to the left B1 with respect to the intermediate member 203UM, the amount of protrusion from the intermediate member 203UM decreases. .

  The lower frame 203FD is located at a lower front part of the support frame 200. The lower frame 203FD has an intermediate member 203DM and outer members 203DL and 203DR. The intermediate member 203DM is a tubular member, and the center in the length direction is disposed at the center in the machine body width direction K2. The outer members 203DL and 203DR extend outside the body with respect to the intermediate member 203DM. Specifically, outer member 203DL extends leftward with respect to intermediate member 203DM. The outer member 203DR extends rightward with respect to the intermediate member 203DM.

  The lower frame 203FD is attached to a lower part of the vertical frames 201F1 to 201F4. The left part of the intermediate member 203DM is attached to the lower part of the vertical frame 201F3. The right part of the intermediate member 203DM is attached to the lower part of the vertical frame 201F4. The left part of the outer member 203DL is attached to the lower part of the vertical frame 201F1. The right part of the outer member 203DR is attached to the lower part of the vertical frame 201F2.

  The outer diameter of the outer members 203DL and 203DR is smaller than the inner diameter of the intermediate member 203DM. The ends of the outer members 203DL and 203DR on the inboard side are inserted into the intermediate member 203DM. Thus, the amount of protrusion of the outer members 203DL and 203DR with respect to the intermediate member 203DM can be changed. When the outer member 203DL moves to the left B1 with respect to the intermediate member 203DM, the amount of protrusion from the intermediate member 203DM increases, and when the outer member 203DL moves to the right B2 with respect to the intermediate member 203DM, the amount of protrusion from the intermediate member 203DM decreases. . When the outer member 203DR moves to the right B2 with respect to the intermediate member 203DM, the amount of protrusion from the intermediate member 203DM increases, and when the outer member 203DR moves to the left B1 with respect to the intermediate member 203DM, the amount of protrusion from the intermediate member 203DM decreases. .

  The second horizontal frame 203B is located at the upper rear of the support frame 200. The second horizontal frame 203B has an intermediate member 203BM and outer members 203BL and 203BR. The intermediate member 203BM is a tubular member, and the center in the length direction is arranged at the center in the machine body width direction K2. The outer members 203BL and 203BR extend outward from the body with respect to the intermediate member 203BM. Specifically, the outer member 203BL extends leftward with respect to the intermediate member 203BM. The outer member 203BR extends rightward with respect to the intermediate member 203BM.

  The second horizontal frame 203B is attached to upper portions of the vertical frames 201B1 to 201B4. The left part of the intermediate member 203BM is attached to the upper part of the vertical frame 201B3. The right part of the intermediate member 203BM is attached to the upper part of the vertical frame 201B4. The left part of the outer member 203BL is attached to the upper part of the vertical frame 201B1. The right part of the outer member 203BR is attached to the upper part of the vertical frame 201B2.

  The first horizontal frames 202L and 202R, the upper frame 203FU of the second horizontal frame 203F, and the second horizontal frame 203B are combined in a rectangular frame shape in plan view. The vertical frames 201F1, 201F2, the upper frame 203FU of the second horizontal frame 203F, and the lower frame 203FD of the second horizontal frame 203F are combined in a rectangular frame shape in a front view.

  As shown by the arrow and the imaginary line in FIG. 37, the support frame 200 can increase the protrusion amount of the outer members 203UL and 203UR from the intermediate member 203UM of the upper frame FU in the body width direction K2. Further, the support frame 200 can increase the amount of protrusion of the outer members 203DL, 203DR from the intermediate member 203DM of the lower frame 203FD in the body width direction K2. Further, the support frame 200 can increase the protrusion amount of the outer members 203BL and 203BR from the intermediate member 203BM of the second horizontal frame 203B in the body width direction K2.

As shown in FIG. 36 and the like, the support frame 200 has deployment members 206L and 206R that are attached to the vertical frames 201F and 201B so as to be deployable.
The deployment member 206L is arranged on the left side of the support frame 200. The deployment member 206L has a front part 206LF, a rear part 206LB, and a middle part 206LM. The front part 206LF is located at the front of the deployment member 206L. The rear part 206LB is located at the rear part of the deployment member 206L. The middle part 206LM extends in the front-rear direction, and connects the front part 206LF and the rear part 206LB. The front part 206LF and the rear part 206LB are parallel to each other and extend in a direction perpendicular to the middle part 206LM. Thereby, the deployment member 206L is formed in a U-shape as a whole.

  The two ends of the developing member 206L are attached to the vertical frames 201F1 and 201B1 so as to be rotatable upward or downward. Specifically, the end of the front part 206LF is attached to the first attachment 207 attached to the vertical frame 201F1 so as to be rotatable upward or downward. The end of the rear portion 206LB is attached to the second attachment 208 attached to the vertical frame 201B1 so as to be rotatable upward or downward. The first fixture 207 is attached to a position closer to the lower side of the vertical frame 201F1. The second attachment 208 is attached to the lower end of the vertical frame 201B1. The first fixture 207 and the second fixture 208 are arranged at the same height.

  The deployment member 206 </ b> R is disposed on the right side of the support frame 200. The deployment member 206R has a front part 206RF, a rear part 206RB, and a middle part 206RM. The front part 206RF is located at the front part of the deployment member 206R. The rear part 206RB is located at the rear part of the deployment member 206R. The middle part 206RM extends in the front-rear direction, and connects the front part 206RF and the rear part 206RB. The front part 206RF and the rear part 206RB are parallel to each other and extend in a direction perpendicular to the middle part 206RM. Thereby, the deployment member 206R is formed in a U-shape as a whole.

  The two ends of the deployment member 206R are attached to the vertical frames 201F2 and 201B2 so as to be rotatable upward or downward. Specifically, the end of the front part 206RF is attached to the third attachment 209 attached to the vertical frame 201F2 so as to be able to pivot upward or downward. The end of the rear part 206RB is attached to the fourth attachment 210 attached to the vertical frame 201B2 so as to be rotatable upward or downward. The third fixture 209 is attached to a position closer to the lower side of the vertical frame 201F2. The fourth attachment 210 is attached to the lower end of the vertical frame 201B2. The third fixture 209 and the fourth fixture 210 are arranged at the same height.

As shown by an arrow E2 in FIG. 38, by turning the developing member 206L upward with respect to the vertical frames 201F1 and 201B1, a folding posture extending upward can be achieved. Further, as shown by an arrow E4, by turning the deployment member 206R upward with respect to the vertical frames 201F2 and 201B2, a folding posture extending upward can be obtained.
As shown by an arrow E1 in FIG. 38, the deploying member 206L is rotated downward from the folded posture to the horizontal position with respect to the vertical frames 201F1 and 201B1 to move the deploying member 206L to one side (left side) in the body width direction K2. To a deployed posture extending to Further, as shown by an arrow E3, the deploying member 206R is pivoted downward from the folded posture to the horizontal position with respect to the vertical frames 201F2 and 201B2 to move the deploying member 206R to the other side (right side) in the body width direction K2. An extended deployment position can be provided.

When the deploying members 206L and 206R are changed from the deploying position to the folding position, the deploying member 206L is turned downward with respect to the vertical frames 201F1 and 201B1, and the deploying member 206R is moved downward with respect to the vertical frames 201F2 and 201B2. It may be turned downward to face downward.
The connecting member 204C includes a first connecting member 204C1, a second connecting member 204C2, a third connecting member 204C3, a fourth connecting member 204C4, a fifth connecting member 204C5, and a sixth connecting member 204C6.

  The first connecting member 204C1 and the second connecting member 204C2 are arranged in parallel with each other and extend in the front-rear direction K1. The first connecting member 204C1 connects the left part of the intermediate member 203UM of the upper frame 203FU and the left part of the intermediate member 203BM of the second horizontal frame 203B. The second connecting member 204C2 connects the right part of the intermediate member 203UM of the upper frame 203FU and the right part of the intermediate member 203BM of the second horizontal frame 203B.

  The third connecting member 204C3 connects the first horizontal frame 202L and the vertical frame 201B1. The fourth connecting member 204C4 connects the first horizontal frame 202R and the vertical frame 201B2. The fifth connecting member 204C5 connects the first connecting member 204C1 and the left portion of the bridge member 211. The sixth connecting member 204C6 connects the second connecting member 204C2 and the right part of the bridge member 211.

  The connection frame 205L is arranged on the left side of the support frame 200. The connection frame 205L has a first connection member 205L1, a second connection member 205L2, a third connection member 205L3, and a fourth connection member 205L4. The first connection member 205L1 extends rearward and downward from a middle part of the vertical frame 201F3. The second connection member 205L2 extends downward from a lower portion of the first connection member 205L1. The third connection member 205L3 connects the upper part of the second connection member 205L2 and the left part of the intermediate member 203DM of the lower frame 203FD. The fourth connection member 205L4 connects the left portion of the intermediate member 203DM of the lower frame 203FD to a vertically intermediate portion of the second connection member 205L2.

  The connection frame 205R is arranged on the right side of the support frame 200. The connection frame 205R has a first connection member 205R1, a second connection member 205R2, a third connection member 205R3, and a fourth connection member 205R4. The first connection member 205R1 extends rearward and downward from a middle part of the vertical frame 201F4. The second connection member 205R2 extends downward from a lower portion of the first connection member 205R1. The third connection member 205R3 connects the upper part of the second connection member 205R2 and the right part of the intermediate member 203DM of the lower frame 203FD. The fourth connection member 205R4 connects the right portion of the intermediate member 203DM of the lower frame 203FD to a vertically intermediate portion of the second connection member 205R2.

  The support frame 200 is detachably connected to the body 2 by the connection frames 205L, 205R and the connection plate 212. As shown in FIG. 26, the second connection member 205L2 of the connection frame 205L is connected to a support 17L provided upright on a front portion of the deck 10L by a bolt or the like. The second connection member 205R2 of the connection frame 205R is connected by bolts or the like to the support 17R provided upright at the front of the deck 10R. The connection plate 212 is connected to the rear frame member 22B of the support frame 22 by bolts or the like. Thereby, the support frame 200 is mounted on the upper part of the body 2.

  33 and 34 show that the support frame 200 is extended to one side (left side) and the other side (right side) in the body width direction K2, respectively, and the deploying members 206L and 206R are connected to one side (left side) in the body width direction K2. The figure shows a state in which the deployed posture extends to the other side (right side). 33 and 34, the chairs 13L and 13R and the rear wheels 4L and 4R are separated from the body 2. In this state, the left end of the support frame 200 (the left end of the deployment member 206L) is located to the left of the chair 13L. The right end of the support frame 200 (the right end of the deployment member 206R) is located to the right of the chair 13R. The front end of the support frame 200 (the front surface of the lower frame 203FD) is located forward of the support frame 22. The rear end of the support frame 200 (the rear surface of the second horizontal frame 203B) is located behind the support frame 22. Further, the first horizontal frames 202L and 202R are located outside the body of the vehicle relative to the front wheels 3L and 3R and the rear wheels 4L and 4R. The hood member 220 is mounted on the support frame 200 in the state shown in FIGS.

  FIG. 35 shows a state where the chairs 13L and 13R are mounted on the second mounting portion 155, the rear wheels 4L and 4R are brought closer to the body 2, and the support frame 200 is shortened in the body width direction K2. . In this state, the first horizontal frames 202L and 202R are located closer to the body than the front wheels 3L and 3R. Further, the first horizontal frames 202L and 202R are located closer to the inside of the vehicle than the outer ends of the rear wheels 4L and 4R. Therefore, even when the support member 200 is provided, the width (length in the machine width direction) of the transplanter 1 can be reduced. Thereby, the handling property (portability) at the time of transporting the transplanter 1 is improved, and the transplanter 1 can be transported on a truck bed. Further, the space required for storage can be reduced.

  As shown in FIGS. 39 to 41, the top frame 220 is attached to the support frame 200. The hood member 220 is attached to the support frame 200 by covering the support frame 200 from above. The hood member 220 is made of a transparent or translucent material. The hood member 220 is preferably made of a flexible and foldable resin sheet. Examples of the resin forming the top member 220 include, but are not limited to, polyvinyl chloride, polyethylene, and polypropylene.

The hood member 220 is configured in a box shape having an upper surface 220U, a front surface 220F, a rear surface 220B, a left side surface 220L, and a right side surface 220R when mounted on the support frame 200 (hereinafter, referred to as an “installed state”). The lower surface is open.
As shown by a virtual line in FIG. 34, the outer shape of the upper surface 220U of the hood member 220 has a rectangular shape in plan view. The front edge 220UF of the upper surface 220U is along the upper frame 203FU of the second horizontal frame 203F. The rear edge 220UB of the upper surface 220U is along the second horizontal frame 203B. The left edge 220UL of the upper surface 220U is along the deployment member 206L. The right edge 220UR of the upper surface 220U is along the deployment member 206R.

  As shown in FIG. 40, the outer shape of the front surface 220F has a hexagonal shape in which an isosceles trapezoid is superimposed on a rectangle when viewed from the front. The upper edge 220FU of the front surface 220F is along the upper frame 203FU of the second horizontal frame 203F. The lower edge 220FD of the front surface 220F is along the lower frame 203FD of the second horizontal frame 203F. The left edge 220FL of the front surface 220F is inclined so as to extend to the left as it extends downward in the range from the upper end of the vertical frame 201F1 to the developing member 206L, and extends vertically downward below the developing member 206L. The right edge 220FR of the front surface 220F is inclined so as to shift rightward as it extends downward in the range from the upper end of the vertical frame 201F2 to the developing member 206R, and extends vertically downward below the developing member 206R.

  As shown in FIG. 41, the rear surface 220B has a hexagonal shape in which an isosceles trapezoid is superimposed on a rectangle when viewed from the rear. The upper edge 220BU of the rear surface 220B is along the second horizontal frame 203B. The lower edge 220BD of the rear surface 220B does not extend along the support frame 200. The left edge 220BL of the rear surface 220B is inclined so as to move leftward as it extends downward in the range from the upper end of the vertical frame 201B1 to the developing member 206L, and extends vertically downward below the developing member 206L. The right edge 220BR of the rear surface 220B is inclined so as to extend to the left as it extends downward in the range from the upper end of the vertical frame 201B2 to the developing member 206R, and extends vertically downward below the developing member 206R.

  As shown in FIG. 39, the outer shape of the left side surface 220L has a trapezoidal shape in which the corners of the rear upper part and the rear lower part are a right angle, the front upper part is an obtuse angle, and the front lower part is an acute angle when viewed from the left side. The upper edge 220LU of the left side surface 220L is along the first horizontal frame 202L. The front edge 220LF of the left side surface 220L is along the vertical frame 201F1. A rear edge 220LB of the left side surface 220L is along the vertical frame 201B1.

  Since the outer shape of the right side surface 220L is the same as the outer shape of the left side surface 220L, illustration is omitted. The right side surface 220L is formed in a trapezoidal shape in which the corners of the rear upper part and the rear lower part are right angles, the front upper part is obtuse, and the front lower part is an acute angle when viewed from the right side. The upper edge of the right side surface 220R is along the first horizontal frame 202R. The front edge of the right side surface 220R is along the vertical frame 201F2. The rear edge of the right side surface 220R is along the vertical frame 201B2.

The front surface 220F is an inclined surface that gradually shifts forward from the upper side to the lower side. The rear surface 220B, the left side surface 220L, and the right side surface 220R are vertical surfaces that are perpendicular to the top plate 22a of the support frame 22.
As shown in FIGS. 39 to 41, the hood member 220 can cover at least the top and sides of the seedling supply unit 12 and the chairs 13L and 13R in the mounted state.

The left end of the hood member 220 in the mounted state is located to the left of the left end of the seedling supply unit 12 (the left side plate 22b of the support frame 22) and the chair 13L. The right end of the hood member 220 in the mounted state is located to the right of the right end of the seedling supply unit 12 (the right side plate 22c of the support frame 22) and the chair 13R.
The front end of the hood member 220 in the mounted state is located forward of the front end of the seedling supply unit 12 (the front plate 22d of the support frame 22) and the chairs 13L and 13R. The rear end of the hood member 220 in the mounted state is located behind the rear end of the seedling supply unit 12 (the rear plate 22e of the support frame 22) and the chairs 13L and 13R.

The upper end of the hood member 220 in the mounted state is located above the seedling supply unit 12 and the chairs 13L and 13R. The lower end of the hood member 220 in the mounted state overlaps the support frame 22 of the seedling supply unit 12 and the chairs 13L and 13R in the vertical direction.
It is preferable that the lower end of the hood member 220 in the mounted state is located below the seating surfaces of the chairs 13L and 13R. Further, it is preferable that the lower end of the hood member 220 in the mounted state reaches the decks 10L and 10R or the steps 120L and 120R. In addition, the lower end of the hood member 220 in the mounted state is positioned below the upper edge of the cover 190 in the up-down direction (overlaps with the cover 190) or at a height close to the upper edge of the cover 190.

  As described above, the top and side surfaces of the seedling supply unit 12 and the chairs 13L and 13R are covered by the hood member 220, so that the worker sitting on the chairs 13L and 13R is not affected by wind or rain. Work can be performed smoothly. Further, since the hood member 220 is made of a transparent or translucent material, it is possible to prevent the inside of the hood member 220 from being darkened and the workability from being lowered. Further, the worker can visually recognize the periphery of the transplanter 1 through the hood member 220.

  As shown in FIG. 41, the hood member 220 has a joint 221 that can be opened and closed. The joint 221 extends upward from the lower edge of the hood member 220 and is configured to be opened and closed by a fastener or the like. The joint 221 is provided around the chairs 13L and 13R. Specifically, the joint portions 221 are provided behind the chair 13L and behind the chair 13R, respectively. Thus, the worker can easily enter and exit the inside of the hood member 220 by opening the joint portion 221, and the access to the chairs 13 </ b> L and 13 </ b> R becomes easy.

  As shown in FIGS. 36 to 41, the support frame 200 is provided with a mounting plate 222 to which the lighting device 223 can be mounted. The mounting plate 222 is mounted at the center of the upper frame 203FU in the body width direction K2. The mounting plate 222 extends downward from the upper frame 203FU. The mounting plate 222 is inclined so as to shift rearward as it extends downward. The lighting device 223 is attached to the inclined front surface of the attachment plate 222 with bolts or the like. Thus, the lighting device 223 is attached to the upper front portion of the support frame 200, and can emit light toward the lower front.

  As shown in FIGS. 39 to 41, the lighting device 223 is disposed inside (rearward) the hood member 220 when the hood member 220 is mounted. As shown by an arrow H1 in FIG. 39, the light emitted from the illumination device 223 passes through the hood member 220 and travels toward the lower front of the transplanter 1. This makes it possible to brightly illuminate a ridge or the like in the forward direction of the transplanting machine 1. Further, as indicated by the arrow H2, a part of the light emitted from the lighting device 223 is reflected on the inner surface of the hood member 220 (the rear surface of the front surface 220F) and travels rearward and downward. Thereby, the seedling supply unit 12 inside the hood member 220 can be brightly illuminated. In addition, one illumination device 223 can illuminate the front of the transplanter 1 and the upper part of the seedling supply unit 12.

Hereinafter, effects of the transplanter 1 of the above embodiment will be described.
The transplanter 1 includes a movable body 2, a prime mover E <b> 1 provided in the body 2, a transplant unit 11 provided in the body 2 and planting seedlings in a field, and a seedling provided in the body 2 and transplanted into the transplant unit 11. The seedling supply unit 12 to be supplied, the power transmission mechanism 111 for transmitting the power from the prime mover E1 to the seedling supply unit 12, and the seedling by the power transmission mechanism 111 when a force that hinders the operation of the seedling supply unit 12 is applied. And a power cutoff mechanism 130 that cuts off transmission of power to the supply unit 12.

According to this configuration, when the force that hinders the operation is applied to the seedling supply unit 12, the power transmission mechanism 111 includes the power cutoff mechanism 130 that shuts off transmission of power to the seedling supply unit 12 by the power transmission mechanism 111. When a force that hinders the operation of the seedling supply unit 12 is applied, the operation of the seedling supply unit 12 can be quickly stopped by the power cutoff mechanism 130.
The seedling supply unit 12 includes the seedling supply cups 14A and 14B and a transfer mechanism that transfers the seedling supply cup along an annular path, and the power shutoff mechanism 130 prevents the transfer mechanism from transferring. When a force is applied, transmission of power to the seedling supply unit 12 by the power transmission mechanism 111 is shut off.

According to this configuration, when a force that hinders transfer is applied to the transfer mechanism that transfers the seedling supply cups 14 </ b> A and 14 </ b> B along an annular path, power is transmitted to the seedling supply unit 12 by the power transmission mechanism 111. Is shut off, so that the operation of the seedling supply unit 12 can be stopped promptly when the operator accidentally puts his hand in the transfer mechanism.
The power cut-off mechanism 130 includes a first transmission shaft 131 to which power from the prime mover E1 is transmitted, a second transmission shaft 132 to transmit power to the seedling supply unit 12, a first transmission shaft 131, and a second transmission shaft. 132, and a relay portion 133 for transmitting power from the first transmission shaft 131 to the second transmission shaft 132, the relay portion 133 being a force that prevents rotation of the second transmission shaft 132. , The transmission of power from the first transmission shaft 131 to the second transmission shaft 132 is shut off.

According to this configuration, when a force that hinders rotation is applied to the second transmission shaft 132, the transmission of power from the first transmission shaft 131 to the second transmission shaft 132 is interrupted by the relay unit 133. Transmission of power to the seedling supply unit 12 by the power transmission mechanism 111 can be reliably shut off.
Further, there are provided chairs 13L and 13R which are arranged around the machine body 2 and on which an operator who supplies seedlings to the seedling supply unit 12 is seated. The seedling supply unit 12 supports the seedling supply unit 12 and has an outer periphery of an annular path. The support frame 22 has annular frame portions 26L, 26R surrounding the support frame 22. The support frame 22 is provided with a handrail 90 gripped by an operator sitting on the chairs 13L, 13R. It has a rear part 91 arranged along the rear edges of the frame parts 26L, 26R, and a side part 92 extending forward from the rear part 91 and arranged along the side edges of the frame parts 26L, 26R. I have.

  According to this configuration, the rear portion 91 and the side portion 92 of the handrail 90 prevent a hand from entering the inside (the first opening 12La and the second opening 12Ra) of the annular frame portions 26L and 26R. . Therefore, the chair 13L. A worker who sits on the 13R and works or gets on and off the chairs 13L and 13R erroneously puts his hands inside the annular frames 26L and 26R (the first opening 12La and the second opening 12Ra). Injury is prevented.

In addition, the side part 92 shifts upward as going forward.
According to this configuration, since the upper side and the side of the frame portions 26L and 26R are guarded by the side portions 92, the worker can be inside the annular frame portions 26L and 26R (the first opening portion 12La and the second opening portion 12Ra). ) Can be effectively prevented from being accidentally touched.
Further, there are provided chairs 13L and 13R on which the worker who supplies seedlings to the seedling supply unit 12 is seated around the body 2 and a mounting unit to which the chairs 13L and 13R are removably mounted. A first mounting portion 104 for mounting a chair on the side of the seedling supply portion 12 and a second mounting portion for mounting the chair behind the seedling supply portion 12 and inward of the first mounting portion 104 in the body width direction. Mounting parts 155L and 155R.

According to this configuration, when transporting or storing the transplanter 1, the chairs 13L and 13R are detached from the first mounting portion 104 and mounted on the second mounting portion 155, whereby the width of the transplanter 1 (body width) is obtained. Direction length) can be shortened.
The first mounting unit 104 is movable to a first position beside the seedling supply unit 12 and a second position closer to the seedling supply unit 12 than the first position.

According to this configuration, by moving the first mounting portion 104 from the first position to the second position, the width (length in the machine width direction) of the transplanter 1 can be reduced. Thereby, the handling property (portability) when transporting the transplanter 1 is improved, and the space required for storage can be reduced.
Further, the transplanting machine 1 includes a movable body 2, a prime mover E <b> 1 provided on the body 2, a transplanting unit 11 provided on the body 2 and planting seedlings in a field, and a transplanting unit 11 provided on the body 2 and provided on the transplanting unit 11. A seedling supply unit 12 for supplying seedlings, chairs 13L and 13R arranged around the machine body 2 and seated by an operator for supplying seedlings to the seedling supply unit 12, at least above the seedling supply unit 12 and the chairs 13L and 13R. And a top frame 220 capable of covering the sides and a support frame 200 provided on the body 2 and supporting the top member 220.

According to this configuration, since the top and side of the seedling supply unit 12 and the chairs 13L and 13R can be covered by the hood member 220, the worker can replenish the seedling supply unit 12 with the wind or rain. This can prevent the work to be performed from being adversely affected.
The chairs 13L and 13R are disposed on one side and the other side in the body width direction, respectively, and the support frame 200 is extendable on one side and the other side in the body width direction, respectively.

According to this configuration, by extending the support frame 200 to one side and the other side in the body width direction, the hood member 220 supported by the support frame 220 is extended to one side and the other side in the body width direction, respectively. be able to. Therefore, it is possible to reliably cover the upper side and the side of the chairs 13L and 13R with the hood member 220.
The support frame 200 includes vertical frames 201F and 201B extending from the body 2 to above the chairs 13L and 13R, first horizontal frames 202L and 202R attached to the vertical frames 201F and 201B and extending in the front-rear direction, and a vertical frame. And second horizontal frames 203F and 203B attached to 201F and 201B and extending in the body width direction. The second horizontal frames 203F and 203B are extendable to one side and the other side in the body width direction, respectively.

According to this configuration, the support frame 200 can be configured in a box shape, and the box-shaped support frame 200 can be extended in the machine width direction.
In addition, the support frame has deployment members 206L and 206R attached to the vertical frame so as to be able to be deployed. The deployment members 206L and 206R have a folded posture extending upward or downward, and one side or the other in the body width direction. The attitude can be changed between the deployed attitude extending toward the side and the deployed attitude.

  According to this configuration, by setting the deploying members 206L and 206R to the deploying posture, the hood member 220 can be extended in the body width direction, so that the upper and side portions of the chairs 13L and 13R are reliably secured by the hood member 220. It becomes possible to cover. Further, by setting the deploying members 206L and 206R in the folded posture, the support frame 200 can be shortened in the body width direction, so that the space required for storage can be reduced.

  The seedling supply unit 12 includes a seedling supply device 12L, 12R having a transfer mechanism for transferring the seedling supply cups 14A, 14B along an annular path, a support frame 22 that supports the seedling supply devices 12L, 12R, The support frame 22 has a front frame member 22F arranged in front of the seedling supply section 12, and the second horizontal frames 203F and 203B have upper portions attached to upper portions of the vertical frames 201F and 201B. It has a frame 203FU and a lower frame 203FD attached below the vertical frames 201F and 201B, and the lower frame 203FD is arranged along the front frame member 22F.

According to this configuration, the lower front portion of the support frame 200 (the lower frame 203FD) is disposed along the support frame 22 that supports the seedling supply devices 12L and 12R. The front part can be reliably covered.
The chairs 13L and 13R are movable on one side in the body width direction and approach the body 2 and in the direction on one side in the body width direction and away from the body 2. is there.

According to this configuration, since the movement direction of the chairs 13L and 13R and the expansion and contraction direction of the support frame 200 are the same direction (body width direction), it is possible to expand and contract the support frame 200 according to the position of the chairs 13L and 13R. it can.
The hood member 220 is made of a transparent or translucent material.
According to this configuration, since external light such as sunlight can be introduced into the inside of the top member 220, it is possible to prevent the inside of the top member 220 from being darkened and the workability from being reduced. Further, the worker can visually recognize the periphery of the transplanter 1 through the hood member 220.

The hood member 220 has a joint 221 that can be opened and closed around the chairs 13L and 13R.
According to this configuration, the worker can easily enter and exit the inside of the hood member 220 by opening the joint portion 221 and access to the chairs 13L and 13R becomes easy.
In addition, an illumination device 223 attached to the support frame 200 and arranged inside the hood member 220 is provided.

According to this configuration, it is possible to illuminate the periphery (the ridge and the like) of the transplanter 1 with the light emitted from the illumination device 223, and also illuminate the seedling supply unit 12 inside the hood member 220. Therefore, the transplanting machine 1 can be moved at night, and the transplanting operation by the transplanting machine 1 can be performed at night.
In addition, the transplanting machine 1 includes a movable body 2, a transplanting unit 11 provided on the body 2 and planting seedlings in a field, a seedling supply unit 12 provided on the body 2 and supplying the transplanting unit 11 with seedlings, A cover 190 that is attached to the body 2 and covers at least the front of the transfer portions 77L and 77R of the seedlings from the seedling supply portion 12 to the transplant portion 11.

According to this configuration, since the cover 190 that covers the front of the transfer portions 77L and 77R of the seedlings from the seedling supply portion 12 to the transplant portion 11 is provided, the influence of external factors such as strong winds is eliminated, and the seedling supply portion is eliminated. The transfer of the seedlings from the plant 12 to the transplanting part 11 can be performed satisfactorily and accurately.
In addition, the cover 190 covers the sides of the transfer units 77L and 77R.
According to this configuration, it is possible to satisfactorily transfer the seedlings from the seedling supply unit 12 to the transplanting unit 11 while eliminating the influence of strong wind or the like from the side.

The cover 190 is made of a transparent or translucent material.
According to this configuration, the portions covered by the cover 190 (transfer portions 77L, 77R, etc.) can be visually recognized from the front and side of the transplanter 1. Therefore, the state of the portion covered with the cover 190 and the state of planting can be confirmed without removing the cover 190.
The seedling supply unit 12 includes a seedling supply device 12L, 12R having a transfer mechanism for transferring the seedling supply cups 14A, 14B along an annular path, a support frame 22 that supports the seedling supply devices 12L, 12R, The support frame 22 includes a front frame member 22F disposed in front of the seedling supply section 12, a left frame member 22L disposed in the left part of the seedling supply section 12, and a right side of the seedling supply section 12. The cover 190 is attached along the front frame member 22F, the left frame member 22L, and the right frame member 23R.

According to this configuration, since the cover 190 can be attached to the support frame 22 so as to surround the front, left, and right sides of the seedling supply unit 12, the cover 190 allows the seedling supply unit 12 to transfer to the transplanting unit 11. The front and sides of the transfer portions 77L and 77R for the seedlings can be reliably covered.
The cover 190 includes an earth covering ring (ground contact member) 160 that contacts the ridge formed in the field, and adjustment levers 140L and 140R that adjust the earth covering pressure by the earth covering ring 160. Has an opening 190b that is inserted toward the.

According to this configuration, the adjustment levers 140L and 140R can be easily operated while preventing unintended contact with the adjustment levers 140L and 140R.
The cover 190 has a front plate portion 190F that covers the front of the transfer portions 77L and 77R. The front plate portion 190F has an extension portion 190a that extends rearward in a cylindrical shape, and an opening portion 190b. Are formed in a region surrounded by the extension 190a.

According to this configuration, since the opening 190b is formed in a region surrounded by the extension 190a, it is possible to suppress a decrease in the strength of the cover 190 due to the opening 190b.
The cover 190 includes watering tubes 94 and 95 for supplying water toward the transplanting unit 11, the cover 190 includes side plates 190L and 190R that cover sides of the transfer units 77L and 77R, and the side plates 190L and 190R It has bulging portions 190La and 190Ra which bulge away from the body 2 and cover the sides of the irrigation tubes 94 and 95.

According to this configuration, even when the irrigation tubes 94 and 95 are arranged so as to bulge outward (sideward), the irrigation tubes 94 and 95 can be reliably accommodated. Thus, it is possible to prevent the irrigation tubes 94 and 95 from coming off due to other objects coming into contact with or being caught by the irrigation tubes 94 and 95.
The transplanter 1 includes a body 2 that is movable and has a transplant unit 11 for planting seedlings in a field, chairs 13L and 13R provided around the body 2 and on which workers are seated, and a machine 2 And a lever for operating the horizontal control device, wherein one side of the vehicle body 2 is lowered by swinging to one side in the vehicle width direction, and the other side in the vehicle width direction. A horizontal adjustment lever 97 that lowers the other side of the body 2 by swinging the body 2 and an index body that indicates the inclination of the body 2 from a horizontal state. And an indicator body 98 that tilts to the other side and tilts to one side with respect to the body 2 when the other side of the body 2 descends.

  According to this configuration, when the machine body 2 is tilted, the operator can return the machine body 2 to horizontal by operating the horizontal adjustment lever 97 in the same direction as the tilt direction of the index body 98. Therefore, the operator can intuitively grasp the direction in which the horizontal adjustment lever 97 should be operated by looking at the indicator body 98 without paying attention to the direction in which the body 2 is inclined. Can operate correctly.

A seedling supply unit 12 is provided on the body 2 and supplies seedlings to the transplanting unit 11. Chairs 13L and 13R are provided around the seedling supply unit 12, and the horizontal adjustment lever 97 and the indicator 98 are connected to the seedlings. The supply unit 12 is provided.
According to this configuration, the worker who sits on the chairs 13L and 13R and supplies the seedlings to the seedling supply unit 12 can easily operate the horizontal adjustment lever 97 while watching the indicator body 98.

The seedling supply unit 12 includes a seedling supply device 12L, 12R having a transfer mechanism for transferring the seedling supply cups 14A, 14B along an annular path, a support frame 22 that supports the seedling supply devices 12L, 12R, , And the horizontal adjustment lever 97 and the index member 98 are provided to protrude upward from the support frame 22.
According to this configuration, an operator who supplies seedlings to the seedling supply unit 12 can easily operate the horizontal adjustment lever 97 while looking at the indicator 98 projecting upward from the support frame 22.

The support frame 22 has a top plate 22a having a flat upper surface, and the horizontal adjustment lever 97 and the indicator 98 are provided to protrude upward from the top plate 22a.
According to this configuration, the worker can see the index body 98 with reference to the horizontal upper surface of the top plate 22a, so that the inclination of the index body 98 can be easily grasped.
The seedling supply device includes a first seedling supply device 12L provided on one side in the body width direction, and a second seedling supply device 12R provided on the other side in the body width direction. The indicator 98 is arranged between the first seedling supply device 12L and the second seedling supply device 12R.

According to this configuration, the horizontal adjustment lever 97 can be accurately operated while viewing the indicator body 98 from the side of the first seedling supply device 12L or the side of the second seedling supply device 12R.
The horizontal adjustment lever 97 includes a reference lever position 97M, a first lever position 97L on one side with respect to the reference lever position 97M, and a second lever position 97R on the other side with respect to the reference lever position 97M. The index member 98 includes a reference index position 98M, a first index direction 98L on one side of the reference index position 98M, and a second index direction 98L on the other side of the reference index position 98M. The reference lever position 97M and the reference index position 98M are disposed on the same straight line L1 extending in the front-rear direction.

According to this configuration, since the operator can visually recognize the reference lever position 97M and the reference index position 98M on the same straight line L1, the operator should operate the horizontal adjustment lever 97 while observing the inclination direction of the index body 98. The direction can be easily grasped.
Further, the chairs 13L and 13R are arranged on the side of the body 2 and forward or rearward with respect to the horizontal adjustment lever 97 and the index body 98.

According to this configuration, the direction of the line of sight of the worker sitting on the chairs 13L and 13R can be made substantially coincident with the direction in which the horizontal adjustment lever 97 and the indicator 98 are arranged. Therefore, the operator can easily grasp the direction in which the horizontal adjustment lever 97 should be operated by looking at the inclination direction of the index body 98.
Further, the horizontal adjustment lever 97 is disposed closer to the chairs 13L and 13R than the index body 98 in the front-rear direction.

According to this configuration, when the worker sitting on the chairs 13L and 13R faces forward, the horizontal adjustment lever 97 is visually recognized toward the near side, and the index body 98 is visually recognized behind the horizontal adjustment lever 97. Therefore, the operator can easily operate the horizontal adjustment lever 97 on the near side while viewing the inclination direction of the index body 98 toward the back.
In addition, a weight 99 is provided below the indicator body 98, and the indicator body 98 is oriented vertically by gravity acting on the weight 99 when the body 2 is horizontal.

According to this configuration, the index body 98 having a simple configuration can be accurately tilted in accordance with the tilt of the body 2.
As mentioned above, although one Embodiment of this invention was described, it should be considered that Embodiment disclosed this time is an illustration and restrictive at no points. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

DESCRIPTION OF SYMBOLS 1 Transplant machine 2 Body 11 Transplant part 12 Seedling supply part 13L, 13R Chairs 14A, 14B Seedling supply cup 22 Supporting frames 26L, 26R Frame part 90 Handrail 91 Rear part 92 Side part 104 First mounting part 111 Power transmission mechanism 130 Power cutoff mechanism 131 First transmission shaft 132 Second transmission shaft 133 Relay parts 155L, 155R Second mounting part E1

Claims (7)

A drivable aircraft,
A prime mover provided on the aircraft,
A transplant unit provided on the body and for planting seedlings in a field,
A seedling supply unit provided on the body and supplying a seedling to the transplantation unit;
A power transmission mechanism for transmitting power from the prime mover to the seedling supply unit,
A power cutoff mechanism that cuts off transmission of power to the seedling supply unit by the power transmission mechanism when a force that hinders operation is applied to the seedling supply unit;
A transplant machine equipped with. The seedling supply unit has a seedling supply cup, and a transfer mechanism that transfers the seedling supply cup along an annular path,
The transplanter according to claim 1, wherein the power cutoff mechanism cuts off transmission of power to the seedling supply unit by the power transmission mechanism when a force that hinders transfer is applied to the transfer mechanism. The power cutoff mechanism includes a first transmission shaft through which power from the prime mover is transmitted, a second transmission shaft through which power is transmitted to the seedling supply unit, and a first transmission shaft between the first transmission shaft and the second transmission shaft. A relay portion interposed between the first transmission shaft and the power transmission from the first transmission shaft to the second transmission shaft,
3. The relay unit according to claim 1, wherein the relay unit cuts off transmission of power from the first transmission shaft to the second transmission shaft when a force that hinders rotation is applied to the second transmission shaft. 4. Transplant machine. An operator is provided around the body and supplies a seedling to the seedling supply unit.
The seedling supply unit has a support frame that has an annular frame that supports the seedling supply unit and surrounds the outer periphery of the annular path,
The support frame is provided with a handrail that is gripped by an operator sitting on the chair,
The handrail has a rear portion disposed along a rear edge of the frame portion, and a side portion extending forward from the rear portion and disposed along a side edge of the frame portion. The transplanter according to claim 1.   The implanting machine according to claim 4, wherein the side portion moves upward as going forward. A chair which is arranged around the body and which supplies a seedling to the seedling supply unit,
A mounting unit to which the chair is detachably mounted,
With
A first mounting portion for mounting the chair on the side of the seedling supply portion, and the chair being rearward of the seedling supply portion and inward of the first mounting portion in the machine width direction. The transplanter according to any one of claims 1 to 3, further comprising a second mounting portion to be mounted.   The transplant according to claim 6, wherein the first mounting portion is movable to a first position on a side of the seedling supply portion and a second position closer to the seedling supply portion than the first position. Machine.

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