JP2019004825A - Transplanter - Google Patents

Abstract

To provide a transplanter capable of concurrently using a member that supports a container for storing seedlings, as a member (a stand) for supporting a machine body.SOLUTION: The transplanter comprises: a machine body including a transplant part for planting seedlings on a field; wheels provided on the machine body; a removable stand capable of supporting the machine body on the ground with the wheels lifted therefrom; and a mounting part capable of mounting the removed stand, with it projected upward the machine body. The stand includes a locking part capable of locking a container for storing seedlings, with it mounted on the mounting part.SELECTED DRAWING: Figure 15

Description

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

Conventionally, transplanters disclosed in Patent Documents 1 and 2 are known.
The transplanting machine disclosed in Patent Document 1 includes a machine body including a transplanting unit for planting seedlings in a farm field, a wheel provided on the machine body, and a container mounting table on which a container for storing seedlings is placed. The transplanter disclosed in Patent Document 2 includes a machine body including a transplant unit for planting seedlings in a field, a wheel provided on the machine body, and a stand that can support the machine body on the ground in a state where the wheel is floated. .

Japanese Patent Laying-Open No. 2015-89343 Japanese Patent Laying-Open No. 2015-53901

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

  Then, an object of this invention is to provide the transplant machine which can combine the member which supports the container which accommodates a seedling, and the member (stand) which supports a body.

  A transplanter according to an aspect of the present invention is capable of supporting the aircraft on the ground with a machine including a transplant unit for planting seedlings in a farm, wheels provided on the machine, and the wheels floating. And a detachable stand, and a mounting portion that can be mounted by projecting the removed stand upward from the machine body, the stand engaging a container that stores seedlings when mounted on the mounting portion. It has a locking part that can be stopped.

Moreover, the chair provided in the side of the said body is provided, and the said mounting part is provided between the said body and the said chair.
In addition, the stand includes a grounding portion that comes into contact with the ground while the airframe is supported on the ground, and is mounted on the mounting portion with the grounding portion facing upward.
Moreover, the said mounting part has the cylinder which can insert the said stand, and the pin penetrated by the said cylinder and the said stand.

Moreover, the said latching | locking part has a nail | claw part which can be inserted in the opening part for the handle of the said container.
Moreover, the said latching | locking part can be made to incline so that the taking-out port for taking out a seedling may face the said chair, and can latch the said container.

  According to the transplanter, it is possible to use as a member for locking (supporting) a container that stores seedlings by removing the stand that supports the machine body and attaching it to the attachment part. That is, the member that supports the container and the member that supports the machine body can be combined.

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 a planting apparatus. It is a perspective view which shows an opening / closing mechanism and a interlocking mechanism. It is a side view which shows an opening / closing mechanism and a support mechanism. It is a front view which shows angle adjustment of a planting tool. It is a top view of a seedling supply device. It is front sectional drawing of a seedling supply apparatus. It is a perspective view which shows the support structure of a chair. It is a front perspective view which shows the support mechanism of a chair. It is a front perspective view which shows the support mechanism of a chair. It is a perspective view which shows a chair direction change mechanism. It is a back perspective view which shows the raising / lowering step and the periphery structure of a footrest board. It is a back perspective view showing the state where the peripheral structure of the raising and lowering step and the stand are mounted on the mounting portion. It is a perspective view which shows the lower part of the stand of the state with which the mounting part was mounted | worn. It is a perspective view which shows the state which locked the container to the latching | locking part of the stand with which the mounting part was mounted | worn. It is a side view of a transplant machine. It is a top view of a transplant machine.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings as appropriate.
FIG.18 and FIG.19 has shown the transplanter 1 which plants a seedling in a farm field (畝), running a farm field. FIG. 18 is a side view of the transplanter 1, and FIG. 19 is a plan view of the transplanter 1.
In the embodiment of the present invention, the advancing direction (arrow A1 direction in FIGS. 18 and 19) of the transplanter 1 at the time of seedling planting is forward, and the opposite side of the traveling direction (arrow A2 direction in FIGS. 18 and 19) is backward. In the following description, the left side (in the direction of arrow B1 in FIG. 19) in the direction of travel is the left side, and the right side in the direction of travel (in the direction of arrow B2 in FIG. 19) is the right side.

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

As shown in FIGS. 18 and 19, the transplanter 1 has a body 2. A motor (engine) E <b> 1 is mounted on the rear part of the machine body 2. The airframe 2 has a mission case M1 to which power from the prime mover E1 is transmitted. In addition, a steering handle 5 that is held by an operator when the transplanter 1 is walking is provided at the rear of the machine body 2.
The transplanter 1 has a front wheel (wheel) 3L and a rear wheel (wheel) 4L disposed on the left side of the body 2, and a front wheel (wheel) 3R and a rear wheel (wheel) 4R disposed on the left side of the body 2. . The body 2 is supported by the front wheels 3L and 3R and the rear wheels 4L and 4R so as to be able to travel.

A front wheel support arm 6 </ b> L is provided on the left side of the body 2. The upper portion of the front wheel support arm 6L is supported by the body 2 so as to be rotatable about a horizontal axis (an axis extending in the body width direction K2). A front wheel 3L is rotatably attached to a lower portion of the front wheel support arm 6L.
A front wheel support arm 6 </ b> R is provided on the right side of the body 2. The upper portion of the front wheel support arm 6R is supported by the body 2 so as to be rotatable about the horizontal axis. A front wheel 3R is rotatably attached to a lower portion of the front wheel support arm 6R.

A wheel support 7 </ b> L is provided on the left side of the body 2. The upper portion of the wheel support 7L is supported by the body 2 so as to be rotatable about the horizontal axis. A rear wheel 4L is rotatably attached to the lower portion of the wheel support 7L.
A wheel support 7 </ b> R is provided on the right side of the body 2. The upper portion of the wheel support 7R is supported by the body 2 so as to be rotatable about the horizontal axis. A rear wheel 4R is rotatably attached to the lower portion of the wheel support 7R.

The front wheels 3L and 3R are freely rotating wheels, and the rear wheels 4L and 4R are driving wheels that are rotated by transmission of power from the transmission case M1.
The front wheel support arms 6L, 6R and the wheel supports 7L, 7R can swing up and down and can be driven to swing by a hydraulic cylinder (not shown). Accordingly, the front wheels 3L and 3R and the rear wheels 4L and 4R are moved up and down relatively with respect to the body 2. By simultaneously raising and lowering the front wheels 3L and 3R and the rear wheels 4L and 4R with respect to the machine body 2, the machine body 2 is raised and lowered with respect to the ground.

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

  The stands 8L and 8R are detached from the lower part of the machine body 2 and mounted on the mounting portions 9L and 9R provided on the machine body 2 when not in use (when the transplanter 1 is planted, moved, etc.). . The mounting portion 9L is provided on the deck 10L provided on the left side of the machine body 2 so as to protrude upward. The mounting portion 9 </ b> R is provided on the deck 10 </ b> R provided on the right side of the airframe 2 so as to protrude upward. The decks 10 </ b> L and 10 </ b> R are parts on which an operator rides, and are parts on which feet of an operator who performs seedling planting work are placed.

The rear stand is folded when not in use.
The transplanter 1 includes a transplant unit 11 for planting seedlings in a field, and a seedling supply unit 12 for supplying seedlings to the transplant unit 11. The transplant part 11 is provided in the front part of the airframe 2. The seedling supply part 12 is provided above the body 2 from the front part to the rear part. The seedling supply unit 12 includes a first seedling supply device 12 </ b> L provided on the left side of the machine body 2 and a second seedling supply device 12 </ b> R provided on the right side of the machine body 2.

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

  The first chair 13L and the second chair 13R are chairs on which workers who supply seedlings to the seedling supply unit 12 sit. The transplanter 1 is a riding-type transplanter 1 that allows an operator sitting on the first chair 13L and / or the second chair 13R to perform operations such as steering during a planting operation. When the worker sits on 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 2 Seedlings are supplied to the seedling supply device 12R.

Next, the first seedling supply device 12L and the second seedling supply device 12R will be described with reference to FIGS. 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 includes seedling supply cups 14A and 14B to which seedlings are supplied from above by an operator. As shown in FIG. 9, the seedling supply cups 14 </ b> A and 14 </ b> B include a cylindrical cup body 15 having an upper and lower opening shape, and a bottom lid 16 that closes and opens the bottom opening of the cup body 15. The seedling supply cups 14A and 14B can hold seedlings with the bottom lid 16 closed, and can discharge the seedlings downward when the bottom lid 16 is opened.

As shown in FIG. 8, the seedling supply cups 14 </ b> A and 14 </ b> B are arranged in a loop at regular intervals so as to exhibit 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 the oval cup arrangement path (transfer path).
The seedling supply cups 14A and 14B include a first cup 14A that drops and discharges seedlings at a first position X1 on the outer side of the front side of the cup arrangement path, and a front side of the cup arrangement path on the inward side of the body. The second cups 14B that drop and discharge the seedlings at the second position X2 are 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 circulated and transferred in the direction indicated by the arrow Y2 along the cup arrangement path.
The opening of the bottom cover 16 is restricted by the restriction member, and the first cup 14A is located at the first position X1 and the second cup 14B is detached from the restriction member when the second cup 14B is located at the second position X2.

  The first seedling supply device 12L includes a drive sprocket 18 disposed at a rear portion on the inner peripheral side of the cup arrangement path, a driven sprocket 19 disposed at a front portion on the inner peripheral side of the cup arrangement path, and the sprockets 18, 19 And an endless transfer chain 20 wound around. A connecting portion 21 is provided at the 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 intermittently transferred.
A seedling guide 22 is provided at the first position X1 and the second position X2. The seedling guide 22 receives the seedlings discharged from the seedling supply cups 14A and 14B and guides them downward.
Next, the transplant part 11 will be described in detail with reference to FIGS.

As shown in FIGS. 1 and 2, 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 the front portion of the body 2. The central portion of the main frame 24 in the body width direction K2 coincides with the central portion of the body 2 in the width direction K2. The first mounting member 25L is fixed to the lower portion of the left side portion of the main frame 24 and is fixed to the front portion of the deck 10L. The second mounting member 25R is fixed to the lower portion of the right side portion of the main frame 24 and is fixed to the front portion of the deck 10R.

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

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

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

  As shown in FIG. 4, the first planting device 36L includes a plurality of planting tools (first planting tool 37L and third planting tool 38L) for planting seedlings in a farm field. The plurality of planting tools are supported by the first transmission body 39L through the first lifting mechanism 40L and the first support body 41L so as to be lifted and lowered. The first planting tool 37L and the third planting tool 38L are moved up and down at the same time, the seedlings are supplied at the raised position and lowered while holding the seedlings, and enter the field (畝) at the lowered position and open. Thereby, a planting hole is formed in the field, and a seedling is released into the planting hole and planted.

  The second planting device 36R also has a plurality of planting tools (second planting tool 37R and fourth planting tool 38R) for planting seedlings in the field. The plurality of planting tools are supported by the second transmission body 39R through the second lifting mechanism 40R and the second support body 41R so as to be lifted and lowered. 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. Further, the second planting tool 37R and the fourth planting tool 38R are lowered when the first planting tool 37L and the third planting tool 38L are raised.

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

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

  The transmission mechanism 44L transmits the power of the drive shaft 31 to the first elevating mechanism 40L. The transmission mechanism 44L is a first sprocket 46 attached to one end portion of the drive shaft 31 via a bearing member 45, and a transmission shaft 49 provided at the front portion of the support case 43L. The sprocket 47 has 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 front end side of the support case 43L (first transmission body 39L) is connected to the left side portion of the front frame member 29 by the first connecting member 50L. The rear 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 connecting member 50L is attached to a mounting stay 35L fixed to the front frame member 29 with bolts or the like so that the position can be adjusted in the body width direction K2.

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

  The distal end side of the support case 43R (second transmission body 39R) is coupled to the left side portion of the front frame member 29 by the second coupling member 50R. The rear part of the second connecting member 50R is fixed to the front 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 with bolts or the like so that the position thereof can be adjusted in the body width direction K2.

That is, the first connecting member 50L, the second connecting member 50R, the main frame 24, the first attachment member 25L, the second attachment member 25R, the support case 43L, the support case 43R, and the front frame member 29 constitute a frame. Yes. Thereby, the 1st planting apparatus 36L and the 2nd planting apparatus 36R are arrange | positioned in the frame, and are protected.
As shown in FIG. 1, the first elevating mechanism 40L and the second elevating mechanism 40R are arranged side by side in the direction along the drive shaft 31 (airframe width direction K2). The first elevating mechanism 40L is disposed on the front side of the first transmission body 39L. The first elevating mechanism 40L includes a first rotation case 51 that is rotatably supported by the support case 43L via a transmission shaft 49, and a second rotation that is rotatably supported on the free end side of the first rotation 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. The rear portion of the first support body 41L is suspended by a spring (not shown) (biased upward).

  In the first lifting mechanism 40 </ b> L, the first rotating case 51 is rotationally driven by the transmission shaft 49, and the second rotating case 52 is opposite to the first rotating case 51 in conjunction with the rotation of the first rotating case 51. A power transmission mechanism is provided in the first rotating case 51 and the second rotating case 52 so as to rotate in the direction. 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 elevating mechanism 40L is supported by the first transmission body 39L and raises and lowers the first planting tool 37L and the third planting tool 38L by the power of the first transmission body 39L.

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

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

  As shown in FIG. 4, the first support body 41L is disposed on the inward side of the first lifting mechanism 40L. The first support 41L connects the first member 53L that supports the first planting tool 37L, the second member 54L that supports the third planting tool 38L, and the first member 53L and the second member 54L. A plurality of connecting members 55L. The first member 53L and the second member 54L are arranged with an interval in the body width direction K2. The plurality of connecting members 55L are disposed between the first member 53L and the second member 54L. The first planting tool 37L is disposed on the outer side of the body at the rear of the first member 53L. The third planting tool 38L is disposed on the inward side of the rear portion of the second member 54L.

  The second support 41R will be described with reference to FIG. 4. The second support 41R is disposed on the inward side of the second lifting mechanism 40R. The second support 41R connects the first member 53R that supports the second planting tool 37R, the second member 54R that supports the fourth planting tool 38R, and the first member 53R and the second member 54R. A plurality of connecting members 55R. Since 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 body 41L, the description thereof is omitted. The second planting tool 37R is disposed on the outer side of the body at the rear of the first member 53R. The fourth planting tool 38R is disposed on the inward side of the rear portion of the second member 54R.

  As shown in FIG. 6, the first planting tool 37L is supported by the first member 53L of the first support body 41L so as to be opened and closed by the first support mechanism 56L. Referring to FIG. 6, the second planting tool 37R, the third planting tool 38L, and the fourth planting tool 38R will be described. The second planting tool 37R is a first member 53R of the second support body 41R. The second support mechanism 56R is supported so as to be openable and closable forward and backward. The third planting tool 38L is supported by the second member 54L of the first support body 41L so as to be openable and closable by the third support mechanism 57L. The fourth planting tool 38R is supported by the second member 54R of the second support body 41R so as to be openable and closable by the 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. 5 and 6, the first planting tool 37 </ b> L includes a front first configuration portion 58 and a rear second configuration portion 59. In the closed state (the first component 58 and the second component 59 are overlapped in the front-rear direction K1), the first planting tool 37L has an upper opening shape and a tapered shape toward the lower side in a side view. Presents. The first planting tool 37L opens when the first component 58 and the second component 59 are separated in the front-rear direction K1.

A first mounting bracket 61 is fixed to the front side of the upper portion of the first component 58. A second mounting bracket 62 is fixed to the rear side of the upper portion 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. 5 and 6, the first support mechanism 56 </ b> L includes a first swing member 63, a second swing member 64, a first fixture 65, and a second fixture 66. The front part of the upper part of the first swing member 63 is supported by the first member 53L of the first support body 41L so as to be rotatable around the horizontal axis by the pivot 67. The rear part of the upper part of the second swing member 64 is supported by the first member 53L of the first support body 41L so as to be rotatable around the horizontal axis by the pivot 68. An engaging portion (roller) 69 is provided at the rear portion of the upper portion of the first swing member 63. An open engagement recess 70 is formed in the front part of the upper part of the second swing member 64 in the front. An engaging portion 69 is inserted into the engaging recess 70 and engaged therewith.

The first fixture 65 includes a first plate 65A fixed to the first swing 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 attached to the lower part of the second plate 65B via bolts or the like.
The second fixture 66 includes 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. A second mounting bracket 62 is attached to the lower part of the fourth plate 66B via bolts or the like.

In addition, the first support mechanism 56L includes a spring 71 that biases the first planting tool 37L in the closing direction.
In FIG. 6, when the first swing member 63 swings back and forth around the pivot 67, the first component 58 swings back and forth and the engaging portion 69 moves up and down accordingly. When the engaging portion 69 moves up and down, the second swing member 64 swings back and forth around the pivot 68 and the second component 59 swings back and forth. Thereby, the 1st planting tool 37L opens and closes back and forth. The second planting tool 37R, the third planting tool 38L, and the fourth planting tool 38R also open and close in the same manner.

As shown in FIGS. 5 and 6, the first planting device 36L includes a first opening / closing mechanism 72L that opens and closes the first planting tool 37L. The second planting device 36R includes a second opening / closing mechanism 72R that opens and closes the second planting tool 37R. Since the first opening / closing mechanism 72L and the second opening / closing mechanism 72R have the same configuration, the first opening / closing mechanism 72L will be described, and the description of the second opening / closing mechanism 72R will be omitted.
The first opening / closing mechanism 72L includes 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 includes a pressing portion 73a having a large protruding amount in the radially outward direction and a press releasing portion 73b having a small protruding amount in the radially outward direction. 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 so as to be rotatable around the horizontal axis by the pivot 78. A cam roller 74 is pivotally supported in the middle of the cam link 75. One end of the opening / closing rod 76 is pivotally connected to the lower portion of the cam link 75, and the other end of the opening / closing rod 76 is pivotally connected to the lower portion of the first swing member 63.

  From before the top dead center position to the bottom dead center position 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 through the opening / closing rod 76 to open the first planting tool 37L.

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

  As shown in FIG. 5, the first interlocking mechanism 81 </ b> L 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 so as to be rotatable around the horizontal axis by the pivot 85. The pivot 85 is provided concentrically with the pivot 78. The interlocking link 82 has a lower front portion connected to the cam link 75 by a connecting member 83. Thereby, the interlocking link 82 swings integrally with the cam link 75. One end of the connecting rod 84 is pivotally connected to the lower part of the interlocking link 82. The other end of the connecting rod 84 is pivotally connected to a first swing member 63 that supports the first component 58 of the third planting tool 38L so as to be swingable.

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

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

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

By adjusting the angle of the first planting tool 37L to the fourth planting tool 38R, and adjusting the position of the first planting device 36L and the second planting device 36R in the body width direction K2, the striation adjustment is performed. can do.
As shown in FIG. 3, the first planting device 36L is provided with a first relay guide 87L that guides seedlings to the first planting tool 37L and the third planting tool 38L. The second planting device 36R is provided with a second relay guide 87R that guides the seedlings to the second planting tool and the fourth planting tool.

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

In addition, a planting tool may be extended upwards and the planting tool may have the function of a relay guide.
Next, the chairs 13L and 13R and the surrounding structure of the chair will be described in detail mainly with reference to FIGS.
First, a support structure for the chairs 13L and 13R will be described with reference to FIGS. 10 to 12 and 18 show the support structure of the first chair 13L, the support structure of the second chair 13R is the same.

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

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

  The bracket 105 includes a first side plate 105a, a second side plate 105b, and a connecting portion 105c. The first side plate 105 a is disposed on the inboard side of the column 104 and is positioned between the rear wheels 4 </ b> L and 4 </ b> R and the column 104. The second side plate 105b is arranged on the outer side of the body of the support column 104 and faces the first side plate 105a. The connecting portion 105c extends in the body width direction, and connects the rear portion of the first side plate 105a and the rear portion of the second side plate 105b. In the case of this embodiment, the first side plate 105a, the second side plate 105b, and the connecting portion 105c are integrally formed by bending a single metal plate.

  The bracket 105 is pivotally supported by the transmission case 100. Specifically, the bracket 105 is pivotally supported by the first pivotal shaft 141 with respect to the pivotal support plate 100d provided in the transmission shaft case 100c of the transmission case 100. The pivotal support 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 disposed to face each other. The first pivot plate 100d1 is disposed on the inboard side of the first side plate 105a. The second pivot plate 100d2 is disposed on the outer side of the body of the second side plate 105b. The first pivot shaft 141 extends in the 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. As a result, the bracket 105 can swing around the first pivot shaft 141 with respect to the transmission case 100.

The support shaft 106 protrudes laterally from the body 2. One end side of the support shaft 106 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 includes 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 column and is located between the column 104 and the rear wheels 4L and 4R. The outer plate 107b is disposed on the outer side of the fuselage 104 and faces the inner plate 107a. The upper plate 107 c connects the upper portion of the inner plate 107 a and the upper portion of the outer plate 107 b in front of the support column 104.

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

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

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

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

  The pin 112 protrudes downward from the lower surface of the seat portion 13a of the chairs 13L and 13R. The pin 112 can be inserted into the hole 111a from above when the protrusion 113 is inserted into the column 104. By inserting the pin 112 into the hole 111a, the orientation of the chairs 13L and 13R is fixed. In addition, in FIG. 13, the state (state which floated the chair) just before inserting the pin 112 in the hole 111a is shown.

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

The orientations of the chairs 13L and 13R that can be changed by the chair orientation changing mechanism 110 include, for example, at least a state in which a seated operator faces obliquely forward and a state that faces forward. The operator can perform the operation of supplying seedlings to the seedling supply cups 14A and 14B in a state of facing diagonally forward.
The configuration of the chair orientation changing mechanism 110 is not limited to the combination of the hole 111a and the pin 112. For example, instead of the hole 111a, a notch (concave portion) that can lock the pin 112 is provided on the setting plate 111. You may provide in an outer peripheral part.

As shown in FIGS. 14, 15, and 19, the transplanter 1 includes getting-on / off steps 120 </ b> L and 120 </ b> R. 14 and 15 show 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 parts to be used as a foothold when the operator gets on and off the chairs 13L, 13R. 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 this embodiment, the boarding / alighting step 120L is provided between the body 2 and the rear wheel 4L and behind the chair 13L. Moreover, the boarding / alighting step 120R is provided between the body 2 and the rear wheel 4R and behind the chair 13R.

  The getting-on / off steps 120L, 120R are located between the placing tables 121L, 121R on which the irrigation tank T is placed and the rear wheels (wheels) 4L, 4R. Specifically, as shown in FIGS. 14 and 15, the end 120 d on the outer side of the body of the getting-on / off steps 120 </ b> L, 120 </ b> R and the end 121 a on the outer side of the body of the mounting table 121 </ b> L, 121 </ b> R in the rear direction It is located between the wheels 4L and 4R.

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

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 plate 120a is a plate on which an operator puts his / her foot when getting on and off, and is arranged with one surface facing upward and the other surface facing downward. That is, the step plate 120a is disposed so as to be substantially parallel (substantially horizontal) to the ground.
The step plate 120a is provided at a position lower than the seating surfaces of the chairs 13L and 13R. More specifically, the step plate 120 a is provided at a position lower than the support shaft 106. The front connection plate 120b is connected to the front portion of the step plate 120a and extends upward. The rear connection plate 120c is connected to the rear portion of the step plate 120a and extends upward. Upper portions of the front connection plate 120b and the rear connection plate 120c are connected to the side portion of the airframe 2. Thereby, the getting-on / off steps 120L, 120R are connected to the side portions (left side portion and right side portion) of the airframe 2.

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

The decks 10L and 10R are provided in front of the column 104 supporting the chairs 13L and 13R and inward of the body. As a result, the decks 10L and 10R are positioned at the feet of the workers who are seated on the chairs 13L and 13R facing diagonally forward. Therefore, an operator who performs the operation of supplying seedlings to the planting cup can place his / her feet on the decks 10L and 10R during the operation.
The decks 10L and 10R are provided in front of the getting-on / off steps 120L and 120R and higher than the getting-on / off steps 120L and 120R. Specifically, the deck 10L is provided in front of the getting-on / off step 120L and higher than the getting-on / off step 120L. The deck 10R is provided in front of the getting-on / off step 120R and higher than the getting-on / off step 120R. Thereby, the decks 10L and 10R can also be used as intermediate steps in which the operator can get on the way from the getting-on / off steps 120L and 120R to the chairs 13L and 13R or on the way to the getting-on / off steps 120L and 120R from the chairs 13L and 13R. Is available.

  Next, the stands 8L and 8R and the mounting portions 9L and 9R will be described in detail mainly with reference to FIGS. FIGS. 15 and 16 show a state in which the stand 8L is attached to the attachment portion 9L, but the state in which the stand 8R is attached to the attachment portion 9R is the same. FIG. 17 shows the locking portion 130 of the stand 9R, but the locking portion 130 of the stand 9L has the same configuration. A state in which the stands 8L and 8R are attached to the lower portion of the airframe 2 is indicated by phantom lines in FIG.

The stands 8L and 8R are composed of a cylindrical body such as a pipe. The stands 8 </ b> L and 8 </ b> R can be attached to the lower part of the front part of the machine body 2 by, for example, inserting the stand 8 </ b> L into a cylinder provided at the lower part of the front part of the machine body 2. Moreover, it can be removed from the lower part of the front part of the airframe 2 by extracting from the said cylinder.
As shown in FIG. 18, the stands 8L and 8R have a grounding portion 8a on one end side. The grounding portion 8a is a disc having a diameter larger than the outer diameter of the cylindrical body constituting the stands 8L and 8R, and abuts against the ground in a state where the body 2 is supported on the ground. The grounding portion 8a may have a shape in which a part of a disk is cut out linearly. A first through hole 8b is formed in the stands 8L and 8R. The first through hole 8b passes through the stands 8L and 8R in a direction orthogonal to the central axis direction.

  The mounting portions 9L and 9R can mount the stands 8L and 8R removed from the body 2. Specifically, the mounting portion 9L can mount the stand 8L. The mounting portion 9R can mount the stand 8R. The mounting portions 9L and 9R can be mounted by causing the stands 8L and 8R to protrude upward from the body 2. The mounting portion 9L is provided between the body 2 and the chair 13L. The mounting portion 9R is provided between the body 2 and the chair 13R. The mounting portions 9L and 9R are provided in front of the chairs 13L and 13R and inward of the body.

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

  The stands 8L and 8R removed from the body 2 are mounted on the mounting portions 9L and 9R with the grounding portion 8a facing upward. Specifically, by inserting the stands 8L and 8R with the grounding portion 8a facing upward from above the cylindrical body 9a, the first through hole 8b and the second through hole 9c are overlapped, and the pin 9b is inserted, The stands 8L and 8R are attached to the attachment portions 9L and 9R. In other words, the stands 8L and 8R are mounted on the mounting portions 9L and 9R with the top and bottom reversed from the state in which the front portion of the body 2 is supported.

The stands 8L and 8R have a locking portion 130. The locking part 130 is a part that can lock the container C that stores the seedlings in a state of being mounted on the mounting parts 9L and 9R. The locking portion 130 is provided at a position closer to the upper side of the stands 8L and 8R. The locking part 130 has a base part 130a and a claw part 130b.
The base 130a is fixed to the stands 8L and 8R, and extends from the rear toward the front. The front end portion of the base portion 130a is located on the inner side and above the rear end portion. In other words, the base portion 130a extends so as to move inward and upward from the rear toward the front.

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

  The claw portion 130b (the first claw portion 131b and the second claw portion 132b) can be inserted into a handle opening Ca provided on the side surface of the container C. By inserting the claw portion 130 b into the opening portion Ca of the container C, the container C is locked to the locking portion 130. In a state where the container C is locked to the locking portion 130 (hereinafter referred to as “locked state”), the container C has an outlet (opening at the top of the container) Cb for taking out seedlings facing the chairs 13L and 13R. To tilt. Specifically, in the locked state, the container C is inclined so that the front part is high and the rear part is low. Thereby, the operator seated on the chairs 13L and 13R can easily take out the seedlings stored in the container C from the outlet Cb. Further, in the locked state, the inward side surface of the container C abuts on the support column 104. Thereby, the attitude | position of the container C is stabilized.

Next, the effect of this embodiment will be described.
The transplanter 1 includes a first planting tool 37L and a second planting tool 37R for planting seedlings in a field, a drive shaft 31 that is rotationally driven, and a driving force of the drive shaft 31 that is disposed on one end side of the drive shaft 31. A first transmission body 39L that transmits the first transmission body 39L, a first lifting mechanism 40L that is supported by the first transmission body 39L and that lifts and lowers the first planting tool 37L by the power of the first transmission body 39L, and the other end of the drive shaft 31 The second transmission body 39R is disposed on the side facing the first transmission body 39L, transmits the driving force of the drive shaft 31, and is supported by the second transmission body 39R and is driven by the power of the second transmission body 39R. A second elevating mechanism 40R that elevates the planting tool 37R, and the first elevating mechanism 40L and the second elevating mechanism 40R are provided on the drive shaft 31 between the first transmission body 39L and the second transmission body 39R. In the direction along It is arranged Te.

According to this configuration, maintenance of the first transmission body 39L and the second transmission body 39R can be easily performed.
In addition, the first support 38L and the fourth planting tool 38R for planting seedlings in the field, the first planting tool 37L and the third planting tool 38L are attached, and the first support is lifted and lowered by the first lifting mechanism 40L. A body 41L, and a second support body 41R to which the second planting tool 37R and the fourth planting tool 38R are attached and moved up and down by a second lifting mechanism 40R.

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

According to this configuration, the structure can be simplified.
The first planting mechanism 37L includes a first support mechanism 56L that supports the first planting tool 37L so that it can be opened and closed, and a second support mechanism 56R that supports the second planting tool 37R so that it can be opened and closed. The attachment 37L is attached to the first support mechanism 56L so that the angle can be changed in the body width direction K2 with respect to the vertical direction, and the second planting tool 37R is attached to the second support mechanism 56R with respect to the vertical direction. It is attached so that the angle can be changed in the width direction K2.

According to this configuration, it is possible to change the interval between seedling planting strips with a simple configuration.
Further, a third planting tool 38L and a fourth planting tool 38R for planting seedlings in the field, a third support mechanism 57L that supports the third planting tool 38L so that it can be opened and closed forward and backward, and a fourth planting tool 38R are provided. A fourth support mechanism 57R that supports the front and rear to be openable and closable, and the third planting tool 38L is attached to the third support mechanism 57L so that the angle can be changed in the body width direction K2 with respect to the vertical direction. The four planting tools 38R are attached to the fourth support mechanism 57R so that the angle can be changed in the machine body width direction K2 with respect to the vertical direction.

According to this configuration, it is possible to change the interval between seedling planting strips with a simple configuration.
A frame material (front frame material 29) disposed on the front end side of the first transmission body 39L and the second transmission body 39R, which is a transplant frame 23 that supports the bases of the first transmission body 39L and the second transmission body 39R. A first connecting member 50L for connecting the transplant frame 23, the frame member and the distal end side of the first transmission member 39L, a second connecting member 50R for connecting the frame member and the distal end side of the second transmission member 39R, It has.

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

According to this configuration, it is possible to change the interval between seedling planting strips with a simple configuration.
The first relay guide 87L that guides the seedlings to the first planting tool 37L and the third planting tool 38L, and the second relay guide 87R that guides the seedlings to the second planting tool 37R and the fourth planting tool 38R. And.
According to this configuration, seedlings can be reliably supplied to the first planting tool 37L to the fourth planting tool 38R.

The transplanter 1 also supports a body 2 having a transplanting part 11 for planting seedlings in a field, wheels (rear wheels) 4L and 4R provided on the sides of the body 2, and supports the wheels 4L and 4R on the body 2. Wheel supports 7L and 7R, and chairs 13L and 13R supported by the wheel supports 7L and 7R.
According to this configuration, since the chairs 13L and 13R are supported by the wheel supports 7L and 7R that support the wheels 4L and 4R on the airframe 2, the chairs 13L and 13R are stably and reliably above the wheels 4L and 4R. Can be supported.

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

Moreover, the support | pillar 104 which supports the chairs 13L and 13R, and the bracket 105 attached to the support | pillar 104 and pivotally supported by the transmission case 100 are provided.
According to this configuration, the chairs 13L and 13R can be reliably and stably supported on the transmission case 100.
Further, a support shaft 106 projecting laterally from the machine body 2 and a connecting member 107 having one end pivotally supported by the support shaft 106 and the other end pivoted by the bracket 105 are provided.

  According to this configuration, the bracket 105, the connecting member 107, the output shaft 102, and the support shaft 106 constitute a four-bar linkage mechanism. Therefore, when the transmission case 100 swings around the axis of the output shaft 102, the column 104 to which the bracket 105 is attached can be lifted and lowered without being tilted. Therefore, the posture of the operator seated on the chairs 13L and 13R supported by the support column 104 is not impaired.

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

In addition, there are boarding steps 120L and 120R provided between the body 2 and the wheels (rear wheels) 4L and 4R and in front of or behind the chairs 13L and 13R.
According to this configuration, the operator can put his / her feet on the getting-on / off steps 120L and 120R from between the airframe 2 and the wheels (rear wheels) 4L and 4R. Therefore, the operator can easily go to the chairs 13L and 13R from the furrows (grooves) in the field through the passage formed between the rear wheel 4L and the mounting table 121L and using the getting-on / off steps 120L and 120R as a foothold. Can be reached.

Moreover, it equips with the mounting bases 121L and 121R which mount the irrigation tank T between the body 2 and wheels (rear wheels) 4L and 4R, and boarding steps 120L and 120R include the mounting bases 121L and 121R and the wheels 4L and 4R. It is provided between.
According to this configuration, the operator can get on the getting-on / off steps 120L and 120R through the space between the mounting tables 121L and 121R and the wheels 4L and 4R. Therefore, even when the irrigation tank T is mounted on the mounting tables 121L and 121R, access to the getting-on / off steps 120L and 120R is not hindered.

The footrests 10L and 10R are provided above the support shaft 106. The footrests 10L and 10R are provided on the chairs 13L and 13R.
According to this configuration, the operator can place his / her feet on the footrests 10L and 10R during work. Further, the footrests 10L and 10R can be arranged by effectively using the space above the support shaft 106.

In addition, there are footrests (deck) 10L, 10R for an operator sitting on the chairs 13L, 13R to place their feet, and the getting-on / off steps 120L, 120R are provided at the rear of the chairs 13L, 13R. The bases 10L, 10R are provided in front of the getting-on / off steps 120L, 120R and higher than the getting-on / off steps 120L, 120R.
According to this configuration, the deck 10L, 10R can be boarded while the operator is moving from the boarding / exiting steps 120L, 120R to the chairs 13L, 13R, or from the chairs 13L, 13R to the boarding / exiting steps 120L, 120R. It can be used as a step.

  In addition, the transplanter 1 is configured such that the machine body 2 including the transplant unit 11 for planting seedlings in the field, the wheels 3L and 3R (4L and 4R) provided on the machine body 2, and the machine body 2 on the ground with the wheels floating. And detachable stands 8L, 8R, and mounting portions 9L, 9R that can be mounted by projecting the removed stands 8L, 8R upward from the body 2, and the stands 8L, 8R In addition, there is a locking portion 130 that can lock the container C that stores the seedlings in a state of being mounted on the mounting portions 9L and 9R.

  According to this configuration, by removing the stands 8L and 8R that support the machine body 2 and attaching them to the attachment portions 9L and 9R, it can be used as a member that locks (supports) the container C that stores the seedlings. That is, the member that supports the container and the member that supports the machine body can be combined. Thus, the stands 8L and 8R can be used effectively, and there is no need to provide a dedicated stand or instrument for installing the container.

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

Further, the stands 8L and 8R include a grounding portion 8a that comes into contact with the ground while the airframe 2 is supported on the ground, and are mounted on the mounting portions 9L and 9R with the grounding portion 8a facing upward.
According to this configuration, the stands 8L and 8R can be attached to the attachment portions 9L and 9R by a simple operation in which the stand 8L and 8R is turned upside down from the state in which the front portion of the body 2 is supported. Further, in a state where the container C is locked to the locking portion 130, the outer surface of the container C can be received by being brought into contact with the grounding portion 8a of the stands 8L and 8R, and is locked to the locking portion 130. Container C is stabilized. When the grounding portion 8a has a shape in which a part of the disk is cut out linearly, the container C is supported more stably by bringing the outer surface of the container C into contact with the cut-out portion. be able to.

The mounting portions 9L and 9R include a cylindrical body 9a into which the stands 8L and 8R can be inserted, and a pin 9b that penetrates the cylindrical body 9a and the stands 8L and 8R.
According to this configuration, the stands 8L and 8R can be easily and reliably attached to the attachment portions 9L and 9R. Further, since the rotation of the stands 8L and 8R around the axis is prevented by the pins 9b, the container C locked to the locking portion 130 can also be prevented from rotating.

Moreover, the latching | locking part 130 has the nail | claw part 130a which can be inserted in the opening part Ca for the handle of the container C. FIG.
According to this configuration, the container C can be locked to the locking portion 130 by a simple operation of inserting the claw portion 130a into the opening Ca for the handle of the container C. It is also easy to remove the container C from the locking portion 130.

Moreover, the latching | locking part 130 can incline the container C by inclining so that the taking-out port Cb for taking out a seedling may face the chairs 13L and 13R.
According to this configuration, an operator seated on the chairs 13L and 13R can easily take out the seedlings stored in the container C from the outlet Cb.
As mentioned above, although this invention was demonstrated, it should be thought 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.

1 transplanter 2 body 11 transplanted part 3L, 3R front wheel (wheel)
4L, 4R Rear wheel (wheel)
8L, 8R Stand 8a Grounding part 9L, 9R Mounting part 9a Tube 9b Pin 13L, 13R Chair 130 Locking part 130a Claw part C Container Ca Opening part Cb

Claims (6)

An aircraft equipped with a transplanting part for planting seedlings in the field;
Wheels provided on the aircraft,
A stand that can support the airframe on the ground with the wheels floating, and is removable;
A mounting portion that can be mounted by projecting the removed stand upward from the aircraft;
With
The said stand has the latching | locking part which can latch the container which accommodates a seedling in the state with which the said mounting part was mounted | worn. A chair provided on the side of the aircraft,
The transplanter according to claim 1, wherein the mounting portion is provided between the body and the chair.   The transplanter according to claim 1 or 2, wherein the stand includes a grounding portion that comes into contact with the ground in a state where the airframe is supported on the ground, and is mounted on the mounting portion with the grounding portion facing upward.   The transplanter according to any one of claims 1 to 3, wherein the mounting portion includes a cylinder body into which the stand can be inserted, and a pin that penetrates the cylinder body and the stand.   The transplanter according to any one of claims 1 to 4, wherein the locking portion has a claw portion that can be inserted into an opening for a handle of the container.   The transplanter according to any one of claims 1 to 4, wherein the locking portion is capable of locking the container by inclining so that an outlet for taking out a seedling faces the chair.

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