JP2017063708A - Transplanting machine - Google Patents

Abstract

An object of the present invention is to provide a transplanting machine compatible with multiple row planting that is compact in the width direction of a traveling vehicle. A traveling vehicle, a first rotating body that is rotatably supported, a second rotating body that is arranged behind the first rotating body and is rotatably supported, and a first rotating body and a second rotating body. A plurality of supply cups having an endless cord spanned over the body, a housing portion for housing the seedling, a mounting portion attached to the cord body, and a lid provided at a lower portion of the housing portion; A setting member that can contact the cup lid and set the open position of the supply cup lid on one side and the other side in the width direction of the traveling vehicle; A first planting tool provided below the open position on the side, and a second planting tool provided below the open position on the other side in the width direction so as to enter the field and plant seedlings. [Selection] Figure 1

Description

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

Conventionally, the technique disclosed in Patent Document 1 is known as a transplanter.
The transplanting machine disclosed in Patent Document 1 includes a traveling vehicle, a rotary tiller, and a transplanter, and can perform tilling and seedling planting while traveling with a single machine. The transplanter has a planting device for planting seedlings and a seedling supply device for supplying seedlings to the planting device.
The seedling supply device has an endless shape spanned between a rotatable first rotating body, a rotatable second rotating body arranged behind the first rotating body, and the first rotating body and the second rotating body. A supply cup having a cable body, a storage part for storing seedlings, a mounting part attached to the cable body, and a lid provided at a lower part of the storage part, and a supply cup capable of contacting the supply cup cover And a setting member for setting the opening position of the lid. The setting member sets the open position of the lid of the supply cup at the rear end of the seedling supply device. In other words, the setting member opens the lid of the supply cup located at the rear end portion of the seedling supply device. Moreover, the planting apparatus is provided under the supply cup located in the rear end part of the seedling supply apparatus. Therefore, the conventional transplanting machine is a single-planting transplanting machine.

JP-A-10-271902

In the conventional transplanting machine, two seedling supply devices must be arranged side by side in the width direction of the traveling vehicle in order to cope with double row planting. Moreover, in order to cope with four-row planting, four seedling supply devices must be arranged side by side in the width direction of the traveling vehicle. Therefore, in the conventional transplanting machine, when the multiple transplanting is supported, the transplanting machine becomes wider in the width direction of the traveling vehicle.
SUMMARY OF THE INVENTION An object of the present invention is to provide a transplanting machine compatible with multiple row planting that is compact in the width direction of a traveling vehicle.

The technical means taken by the present invention to solve the technical problems are characterized by the following points.
The transplanting work machine of the invention according to claim 1 is a traveling vehicle, a first rotating body that is rotatably supported, and a second rotating body that is disposed behind the first rotating body and is rotatably supported. , An endless cord spanned between the first rotating body and the second rotating body, a housing portion for housing a seedling, an attachment portion attached to the cord body, and a lid provided at a lower portion of the housing portion A plurality of supply cups, and a setting member that can be in contact with the lid of the supply cup and can set the open position of the lid of the supply cup on one side and the other side in the width direction of the traveling vehicle, A first planting tool that can enter a field and plant seedlings and is provided below the open position on one side in the width direction; and a planter that can enter a farm field and plant seedlings in the open position on the other side in the width direction. A second planting tool provided below.

The transplanting machine of the invention according to claim 2 is characterized in that the setting member has a first setting unit that sets an opening position on one side in the width direction to one side in the width direction of the first rotating body and the second rotating body. And a second setting unit that sets the open position on the other side in the width direction to the other side in the width direction of the first rotating body and the second rotating body.
According to a third aspect of the present invention, the setting member sets the opening position on one side in the width direction and the opening position on the other side in the width direction at the same position in the front-rear direction.

The transplanting work machine of the invention according to claim 4 includes a ground work machine mounted on a rear portion of the traveling vehicle, and a chair on which an operator sits, and the ground work machine sets a height of the ground work machine. And a support frame that supports the gauge wheel. The chair is positioned on one side of the traveling body in the width direction of the traveling vehicle and is supported by the support frame.
In the transplanting machine of the invention according to claim 5, the setting member sets the opening position on the one side in the width direction and the opening position on the other side in the width direction at different positions in the front-rear direction.

The present invention has the following effects.
According to the first aspect, the setting member has a setting member for setting the opening position of the lid of the supply cup, and the setting member can set the opening position of the lid of the supply cup on one side and the other side in the width direction of the traveling vehicle. Yes, a first planting tool is provided below the open position on one side, and a second planting tool is provided below the open position on the other side. Therefore, only one seedling supply device may be used for two-row planting, and two seedling supply devices may be arranged in parallel in the width direction to support four-row planting. It is possible to provide a transplanting machine that is compact in direction and compatible with multiple row planting.

According to the second aspect, the opening position of the lid of the supply cup can be set on one side and the other side in the width direction of the traveling vehicle by the first setting unit and the second setting unit.
According to the third aspect, the setting member sets the opening position on one side in the width direction and the opening position on the other side in the width direction at the same position in the front-rear direction. Therefore, the first planting tool located below the open position on one side and the second planting tool located below the open position on the other side are located at the same position in the front-rear direction. Thereby, it can prevent that the support structure which supports a 1st planting tool and the support structure which supports a 2nd planting tool differ significantly in length.

According to the fourth aspect, since the chair on which the operator sits is supported by the support frame that supports the gauge wheel, the operator can be firmly supported.
According to the fifth aspect, the setting member sets the opening position on one side in the width direction and the opening position on the other side in the width direction at different positions in the front-rear direction. Thereby, when planting a staggered pattern, the first planting tool and the second planting tool can be lifted and lowered simultaneously, so that the first planting tool and the second planting tool can be stopped at the raised position. The planted seedling can be prevented from catching on the planting tool.

It is a side view of a transplanting machine. It is a schematic plan view of a rotary tiller and a transplanter. It is a side view which shows the connection relation of a rotary machine frame and a transplant machine frame. It is side surface partial sectional drawing of a 1st height change apparatus. It is a rear view of a 1st height change apparatus. It is a side view of a transplant frame and a planting apparatus. It is a top view of a transplant frame. It is a front view of a transplantation frame. It is a schematic block diagram which shows a power transmission system. It is a top view of a planting apparatus. It is a schematic plan view of a seedling supply device. It is a back sectional view of a seedling supply device. It is an arrangement plan of a lid of a supply cup. It is a side view which shows the support structure of a leveling roller and a soil covering ring. It is a top view which shows the support structure of a leveling roller and a cover ring. It is a side view of the planting apparatus which concerns on a modification. It is a top view of the planting apparatus which concerns on a modification. It is a schematic plan view of the seedling supply device concerning a modification. It is an arrangement plan of a lid of a supply cup according to a modification. It is the schematic of the power transmission system which concerns on another modification.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a transplanting work machine 4 having a traveling vehicle 1, a ground working machine 2 attached to the rear part of the traveling vehicle 1, and a transplanting machine 3 attached to the ground working machine 2.
In the present embodiment, a tractor is illustrated as the traveling vehicle 1. Moreover, the rotary tiller is illustrated as the ground work machine 2. FIG. The traveling vehicle 1 may be any vehicle that travels other than the tractor. Moreover, the ground work machine 2 is not limited to a rotary tiller, and may be a machine that works on a farm field. For example, the ground work machine 2 may be a vertical standing machine that raises a straw on a farm field, or a multi-film laying machine that lays a multi film on the straw. Moreover, although the rotary cultivator 1 illustrates the side drive type rotary cultivator, it may be a center drive type rotary cultivator.

  FIG. 1 shows a side view of the transplanter 4. In the embodiment, the front side (left side in FIG. 1) of the driver seated in the driver seat 5 of the tractor 1 is front, the rear side (right side in FIG. 1) is rearward, and the left side of the driver (front side in FIG. 1). ) On the left side and the right side of the driver (the back side in FIG. 1) as the right side. Further, the horizontal direction K2 (see FIG. 2), which is a direction orthogonal to the front-rear direction K1 (see FIG. 1) of the tractor 1, will be described as the width direction.

  The direction of the arrow X1 in FIG. 2 will be described as the outer side in the width direction, and the direction of the arrow X2 in FIG. The outward in the width direction is a direction from the central part of the tractor 1 toward the right part or the left part. In other words, the outward in the width direction is the direction in the width direction K2 and away from the tractor 1. The inner side in the width direction is the direction opposite to the outer side in the width direction. In other words, the inward in the width direction is the direction in the width direction K2 and approaching the tractor 1.

  The tractor (traveling vehicle) 1 includes a vehicle body 6, a front wheel (not shown) attached to the front portion of the vehicle body 6, and a rear wheel 7 attached to the rear portion of the vehicle body 6. The vehicle body 6 is configured by directly connecting an engine, a clutch housing having a clutch, a transmission case having a transmission, a differential case having a differential, and the like. The driver's seat 5 is provided at the rear part of the vehicle body 6. A steering wheel 8 is provided in front of the driver seat 5. At the rear of the vehicle body 6, a power take-out PTO shaft 22 is provided.

As shown in FIG. 1, the rotary cultivator 2 is attached to the rear portion of the tractor 1 so as to be movable up and down via a three-point link mechanism 9 and a connecting frame 10. The three-point link mechanism 9 is attached to the rear part of the vehicle body 6. The connection frame 10 is provided at the rear part of the three-point link mechanism 9. The rotary tiller 2 is attached to the connecting frame 10.
As shown in FIGS. 1 and 2, the rotary tiller 2 has a rotary machine frame (work machine frame) 11. The rotary machine frame 11 includes a gear case 12, a left support arm 13 </ b> L, a right support arm 13 </ b> R, a transmission case 14, and a side frame 15. The gear case 12 is located at a substantially central portion of the rotary tiller 2 in the width direction K2. The support arm 13L protrudes from the left part of the gear case 12 to the left. The support arm 13R protrudes from the right part of the gear case 12 to the right. The upper part of the transmission case 14 is attached to the left end of the support arm 13L. The upper part of the side frame 15 is attached to the right end part of the support arm 13R. A rotating shaft 16 is provided between the lower part of the transmission case 14 and the lower part of the side frame 15. A number of tilling claws 17 are fixed to the outer periphery of the rotary shaft 16 via brackets. The rotary shaft 16 and the tilling claw 17 form a tilling portion 18.

The upper portion of the tillage unit 18 is covered with an upper cover (not shown). The rear of the tillage part 18 is covered with a rear cover 19. The rear cover 19 is pivoted up and down with its upper end pivotally supported by the upper cover. The rear cover 19 is biased downward by the pressure device 20. The pressure device 20 is a device that biases the rear cover 19 downward by the force of a spring.
The gear case 12 is provided with an intake shaft 21. The power of the PTO shaft 22 is transmitted to the intake shaft 21 through a joint. The power transmitted to the intake shaft 21 is transmitted to the chain transmission means in the transmission case 14 via the gear mechanism in the gear case 12 and the shaft in the support arm 13L. The rotating shaft 16 is driven by the power transmitted to the chain transmission means. The rotating shaft 16 is rotated in the arrow A1 direction in FIG. When the rotating shaft 16 rotates in the A1 direction, the tilling claw 17 tills the soil and releases it to the rear rear cover 19. The soil cultivated by the cultivator 18 is leveled by the rear cover 19 to form the upper surface of the culm. The side surface of the ridge is formed by ridgers 23L and 23R described later.

The rotary machine casing 11 includes a left support stay 24L, a right support stay 24R, and a mast 25. The support stay 24L is fixed to the support arm 13L. The support stay 24R is fixed to the support arm 13R. The mast 25 is fixed to the gear case 12.
The rotary cultivator 2 further includes a support frame 26, a left gauge wheel 27L, a right gauge wheel 27R, and a second height changing device 28.

  The support frame 26 is a frame material that supports the gauge wheels 27L and 27R. The gauge wheels 27L and 27R are members that set the height of the rotary tiller 2 (ground working machine). In other words, the gauge wheels 27 </ b> L and 27 </ b> R are members that set the tilling depth of the rotary tiller 2. The second height changing device 28 is a device that changes the setting of the gauge wheels 27L and 27R by swinging the support frame 26 up and down.

As shown in FIGS. 2 and 3, the support frame 26 has a front frame 29 and a rear frame 30.
The front frame 29 includes a left swing arm 31L, a right swing arm 31R, and a connecting rod 32. The swing arm 31L, the swing arm 31R, and the connecting rod 32 are formed of a pipe material. The front end of the swing arm 31L is pivotally supported by the support stay 24L. The swing arm 31L protrudes rearward from the support arm 13L. The front end of the swing arm 31R is pivotally supported by the support stay 24R. The swing arm 31R protrudes rearward from the support arm 13R. The connecting rod 32 connects midway portions of the swing arm 31L and the swing arm 31R. The front frame 29 (support frame 26) is swingable up and down around the pivoting portion of the swing arm 31L and the front end of the swing arm 31R.

The rear frame 30 includes a left connecting rod 33L, a right connecting rod 33R, a horizontal frame member 34, a left vertical frame member 35L, a right vertical frame member 35R, a left wheel frame 36L, and a right frame And a wheel frame 36R.
The connecting rod 33L is inserted into the swing arm 31L from the rear end and is fixed to the swing arm 31L. The connecting rod 33R is inserted into the swing arm 31R from the rear end and is fixed to the swing arm 31R.

  The horizontal frame member 34 is located behind the front frame 29 and is disposed along the width direction K2. Further, the horizontal frame member 34 is coupled to the rear ends of the connecting rod 33L and the connecting rod 33R. The upper part of the vertical frame member 35L is fixed to the left part of the horizontal frame member 34, and protrudes downward from the left part of the horizontal frame member 34. The vertical frame member 35 </ b> R has an upper portion fixed to the right part of the horizontal frame member 34 and projects downward from the right part of the horizontal frame member 34.

  The wheel frame 36L includes a front member 37L and a rear member 38R. The front member 37L has a front end fixed to the lower portion of the vertical frame member 35L and protrudes rearward from the lower portion of the vertical frame member 35L. The rear member 38L has a front portion fixed to the upper surface of the rear portion of the front member 37L and protrudes rearward from the front member 37L. The wheel frame 36R includes a front member 37R and a rear member 38R. The front member 37R has a front end fixed to the lower part of the vertical frame member 35R and protrudes rearward from the lower part of the vertical frame member 35R. The rear member 38R has a front portion fixed to the upper surface of the rear portion of the front member 37R and protrudes rearward from the front member 37R.

The upper portion of the wheel stay 39L is fixed to the front portion of the rear member 38L. The upper part of the wheel stay 39R is also fixed to the front part of the rear member 38R. A gauge wheel 27L is rotatably attached to a lower portion of the wheel stay 39L. A right gauge wheel 27R is rotatably attached to the lower portion of the wheel stay 39R.
A ridger 23L is disposed in front of the gauge ring 27L. A ridger 23R is also arranged in front of the gauge wheel 27R. The erecting device 23L is attached to the lower portion of the vertical frame member 35L. The erecting device 23R is attached to the lower portion of the vertical frame member 35R. The ridger 23L forms the left side surface of the ridge. The ridger 23R forms the right side surface of the ridge.

  A protruding member 40L that protrudes outward in the width direction K2 is provided at the rear portion of the rear member 38L. A protruding member 40R that protrudes outward in the width direction K2 is also provided at the rear portion of the rear member 38R. A support column 41L is provided in an upward projecting shape at the outer end (end portion on the outer side in the width direction K2) of the projecting member 40L. A support post 41R is also provided on the outer end of the protruding member 40R so as to protrude upward. Chairs 42L and 42R for workers (for the operator to sit) are provided at the upper ends of the columns 41L and 41R, respectively. Therefore, the chair 42L is supported by the wheel frame 36L, and the chair 42R is supported by the wheel frame 36R. The chair 42L is positioned above the gauge wheel 27L, and the chair 42R is positioned above the gauge wheel 27R.

  As shown in FIG. 3, the second height changing device 28 includes a second cover cylinder 43, a second screw rod 44, a second movable rod 45, and a second operation handle 46. The upper part of the second cover cylinder 43 is pivotally supported by the mast 25. The second screw rod 44 is housed in the second cover cylinder 43 and can be rotated around the axis by the second operation handle 46. The second movable rod 45 is inserted into the second cover tube 43 from the lower end of the second cover tube 43, and the upper end portion is screwed into the second screw rod 44. A lower end portion of the second movable rod 45 is pivotally supported by a bracket plate 47 fixed to the connecting rod 32.

  When the second screw handle 44 is rotated by operating the second operating handle 46, the second movable rod 45 is screwed or retracted with respect to the screw rod. When the second movable rod 45 is screwed, the second movable rod 45 protrudes from the second cover cylinder 43. When the second movable rod 45 is screwed, the second movable rod 45 enters the second cover cylinder 43. As a result, the second height changing device 28 expands and contracts and the support frame 26 swings up and down, and the height of the gauge wheels 27L and 27R can be changed. By changing the height of the gauge wheels 27L and 27R, the height of the tillage portion 18 is changed, and the tilling depth can be changed.

  As shown in FIGS. 1 and 2, the transplanter 3 includes a plurality of mounting frames 48L and 48R, a tool bar 49, a first height changing device (connecting member) 50, and a plurality of transplant units 51A and 51B. Have. The plurality of mounting frames 48L and 48R include a first mounting frame 48L and a second mounting frame 48R that is a frame different from the first mounting frame 48L. The plurality of transplantation units 51A and 51B include a first transplantation unit 51A and a second transplantation unit 51B. The toolbar 49 is attached across the first attachment frame 48L and the second attachment frame 48R. The first transplantation unit 51A and the second transplantation unit 51B are attached to the tool bar 49. The toolbar 49 is connected to the horizontal frame member 34 by the first height changing device 50.

  The first attachment frame 48L is disposed on the left part of the transplanter 3 and extends rearward from the left part of the rotary tiller 2. The first mounting frame 48 </ b> L includes a first member 52 and a second member 53. The front end of the first member 52 can be detachably attached to the upper portion of the transmission case 14, and is pivotally supported around the horizontal axis (the axis in the width direction K2) in the attached state. The first member 52 extends rearward from the upper part of the transmission case 14. Specifically, the first member 52 extends behind the horizontal frame member 34 through the upper side of the horizontal frame member 34. The second member 53 is disposed vertically behind the horizontal frame member 34. The upper part of the second member 53 is fixed to the rear end of the first member 52. The second member 53 extends downward from the rear end of the first member 52.

  The second attachment frame 48 </ b> R is disposed on the right part of the transplanter 3 and extends rearward from the right part of the rotary tiller 2. The second mounting frame 48 </ b> R includes a third member 54 and a fourth member 55. The front end of the third member 54 can be detachably attached to the upper portion of the side frame 15, and is pivotally supported around the horizontal axis in the attached state. The third member 54 extends rearward from the upper part of the side frame 15. Specifically, the third member 54 extends behind the horizontal frame member 34 through the upper side of the horizontal frame member 34. The fourth member 55 is disposed vertically behind the horizontal frame member 34. The upper part of the fourth member 55 is fixed to the rear end of the third member 54. The fourth member 55 extends downward from the rear end of the third member 54.

  The tool bar 49 is composed of a square pipe, and is attached between the rear portions of the first attachment frame 48L and the second attachment frame 48R. Specifically, the tool bar 49 is provided from the lower end of the second member 53 to the lower end of the fourth member 55. One end of the tool bar 49 is detachably attached to the lower end of the second member 53. The other end of the tool bar 49 is detachably attached to the lower end of the fourth member 55.

  The first height changing device 50 is a device (member) that changes the height of the tool bar 49. In other words, the first height changing device 50 is a device (member) that changes the height of the plurality of transplanting units 51A and 51B and changes the planting depth of the planting device described later. As shown in FIGS. 3 to 5, the first height changing device 50 includes a support bracket 56, an extension rod 57, and a first operation handle 58.

  The support bracket 56 includes a fixing member 59, a bracket body 60, and a plurality of mounting stays 61L and 61R. The fixing member 59 has an upper wall 59a, a lower wall 59b, and a rear wall 59c. The upper wall 59 a contacts the upper surface of the horizontal frame member 34. The lower wall 59b contacts the lower surface of the horizontal frame member 34. The rear wall 59c contacts the rear surface of the horizontal frame member 34. The fixing member 59 is fitted into the center part in the width direction K2 of the horizontal frame member 34 from behind. The fixing member 59 is detachably fixed to the horizontal frame member 34 by mounting pins 62 that penetrate the upper wall 59a, the lower wall 59b, and the horizontal frame member 34.

The bracket body 60 has a lower end portion fixed to a fixing member 59. The front portion of the mounting stay 61L is bolted to the left upper portion of the bracket body 60. A front portion of the mounting stay 61 </ b> R is bolted to the right portion of the upper end of the bracket body 60.
The telescopic rod 57 includes a first cover cylinder 63, a first screw rod 64, and a first movable rod 65. The upper part of the first cover cylinder 63 is disposed between the attachment stay 61L and the attachment stay 61R. The upper portion of the first cover cylinder 63 is pivotally supported by the mounting stay 61L and the mounting stay 61R so as to be rotatable about the horizontal axis. The first screw rod 64 is housed in the first cover cylinder 63 and can be rotated around the axis by the first operation handle 58. The first movable rod 65 is inserted into the first cover tube 63 from the lower end of the first cover tube 63 and is screwed into the first screw rod 64. The lower end of the first movable rod 65 is inserted between the attachment piece 66L and the attachment piece 66R. The lower end of the first movable rod 65 is pivotally supported on the mounting pieces 66L and 66R by a support pin 67 that passes through the first movable rod 65 and the mounting pieces 66L and 66R. The attachment piece 66R is provided in the first transplantation unit 51A. The attachment piece 66L is provided in the second transplantation unit 51B. The parts to which the attachment pieces 66L and 66R are attached will be described later.

  When the first screw handle 64 is rotated by operating the first operation handle 58, the first movable rod 65 is screwed or screwed with respect to the screw rod. When the first movable rod 65 is screwed, the first movable rod 65 protrudes from the first cover cylinder 63. When the first movable rod 65 is screwed, the first movable rod 65 enters the first cover cylinder 63. Therefore, by rotating the first operation handle 58, the telescopic rod 57 expands and contracts, the first mounting frame 48L and the second mounting frame 48R swing up and down, and the tool bar 49 moves up and down. When the tool bar 49 moves up and down, the first transplantation unit 51A and the second transplantation unit 51B move up and down. When the first transplant unit 51A and the second transplant unit 51B move up and down, the heights of the planting devices 68A and 68B provided in the first transplant unit 51A and the second transplant unit 51B are changed, and seedlings are planted. The depth is changed.

First, a schematic configuration of the transplant units 51A and 51B will be described.
As shown in FIGS. 2 and 9, the first transplant unit 51 </ b> A is arranged on the right side of the transplanter 3. The first transplant unit 51A includes a transplant frame (also referred to as a first transplant frame) 69A, a first transmission shaft 70A, an electric motor (prime mover) 71, and a planting device (also referred to as a first planting device) 68A. , A seedling supply device (also referred to as a first seedling supply device) 72A, a leveling roller (grounding roller) 73A, and a plurality of soil covering rings 74A. The first transplant frame 69A is detachably attached to the right part of the tool bar 49. The first planting device 68A, the first seedling supply device 72A, the leveling roller 73A, and the plurality of soil covering rings 74A are provided on the first transplanting frame 69A.

  The second transplantation unit 51B is a transplantation unit that is provided side by side in the width direction K2 with respect to the first transplantation unit 51A, and is disposed on the left side of the transplanter 3. The second transplant unit 51B includes a transplant frame (also referred to as a second transplant frame) 69B, a second transmission shaft 70B, a planting device (also referred to as a second planting device) 68B, and a seedling supply device (second seedling). 72A, a leveling roller (grounding roller) 73B, and a plurality of soil covering rings 74B. The second transplant frame 69B is detachably attached to the left part of the tool bar 49. The second planting device 68B, the second seedling supply device 72A, the leveling roller 73B, and the plurality of covering rings 74B are provided on the second transplanting frame 69B.

The transplanter frame 75 is configured by the first mounting frame 48L, the second mounting frame 48R, the tool bar 49, the first transplanting frame 69A, and the second transplanting frame 69B. The transplanter frame 75 is attached to the rotary tiller 2 (ground work machine) so as to be movable up and down.
Next, the transplant frames 69A and 69B will be described. First, the first transplant frame 69A that is the transplant frame of the first transplant unit 51A will be described.

  As shown in FIGS. 6 to 8, the first transplant frame 69 </ b> A includes a frame attachment portion (attachment portion) 76, a main frame 77, and a planting frame 78. The frame attachment portion 76 is a portion attached to the tool bar 49 and includes a first stay 79 and a plurality of (three in this embodiment) second stays 80. The first stay 79 contacts the rear surface of the tool bar 49. The second stay 80 contacts the front surface of the tool bar 49. The first stay 79 and the second stay 80 are fastened by a mounting bolt 81. The frame attachment portion 76 is attached to the toolbar 49 by holding the toolbar 49 between the first stay 79 and the second stay 80.

The main frame 77 is a frame to which the first seedling supply device 72A, the leveling roller 73A, and a plurality of soil covering rings 74A are attached. The main frame 77 has first to tenth frame materials 82 to 91. The first to tenth frame materials 82 to 91 are formed of square pipe materials.
The first frame member 82 protrudes rearward from the left part of the frame attachment portion 76 (first stay 79). The second frame member 83 protrudes rearward from the right portion of the frame attachment portion 76 (first stay 79). The first frame member 82 and the second frame member 83 are provided at an interval in the width direction K2. A support member 171 </ b> L is provided in a protruding manner in the middle of the first frame member 82 in the front-rear direction. A support member 171 </ b> R is provided in a downward projecting manner in the midway part of the second frame material.

The third frame member 84 is provided from the rear end of the first frame member 82 to the rear end of the second frame member 83, and connects the rear portions of the first frame member 82 and the second frame member 83.
The fourth frame member 85 protrudes upward from a midway portion (center portion) before and after the first frame member 82. The fifth frame member 86 protrudes upward from a midway portion (center portion) before and after the second frame member 83. The sixth frame member 87 is provided from the upper end of the fourth frame member 85 to the upper end of the fifth frame member 86 and connects the upper portions of the fourth frame member 85 and the fifth frame member 86 together.

  The seventh frame member 88 protrudes rearward from a midway portion (center portion) of the sixth frame member 87 in the width direction K2. The eighth frame member 89 connects the middle portion (center portion) in the width direction K2 of the third frame member 84 and the seventh frame member 88. The ninth frame member 90 protrudes rearward from the upper and lower middle portions of the eighth frame member 89. The tenth frame member 91 connects the rear portions of the seventh frame member 88 and the ninth frame member 90.

The planting frame 78 is a frame to which the first planting device 68A is attached. The planting frame 78 includes a first vertical member 92, a second vertical member 93, a first mounting plate 94, a second mounting plate 95, a first connection plate 96, a second connection plate 97, and a third. And a connecting plate 98.
The first vertical member 92 is disposed on the left side from the center portion in the width direction K2 of the first stay 79 and protrudes upward from the first stay 79. A support plate 99 is provided on the upper portion of the first vertical member 92 so as to protrude forward. The second vertical member 93 is disposed on the right side from the central portion in the width direction K2 of the first stay 79 and protrudes upward from the first stay 79.

The first mounting plate 94 is provided between the upper and lower middle portions of the first vertical member 92 and the upper and lower middle portions of the second vertical member 93. The second mounting plate 95 is provided between the lower portion of the first vertical member 92 and the lower portion of the second vertical member 93.
The first connection plate 96 connects the upper end portion of the first vertical member 92 and the sixth frame member 87. The second connection plate 97 connects the upper end portion of the second vertical member 93 and the sixth frame member 87. The third connecting plate 98 connects the upper ends of the first vertical member 92 and the second vertical member 93 and connects the first connecting plate 96 and the second connecting plate 97.

Next, the second transplant frame 69B that is the transplant frame of the second transplant unit 51B will be described.
Similarly to the first transplant frame 69A, the second transplant frame 69B also includes a frame attachment portion (attachment portion) 76, a main frame 77, and a planting frame 78. Since the structure of these frame attaching parts 76, the main frame 77, and the planting frame 78 is the same as the structure mentioned above, description is abbreviate | omitted.

A second seedling supply device 72B, a leveling roller 73B, and a plurality of soil covering rings 74A are attached to the main frame 77 of the second transplant frame 69B.
A second planting device 68B is attached to the planting frame 78 of the second transplant frame 69B.
As shown in FIG. 5, the attachment piece 66R is attached to the inner side in the width direction K2 of the first stay 79 (79A) in the first transplant unit 51A (first transplant frame 69A). An attachment piece 66L is attached to the inner side in the width direction K2 of the first stay 79 (79B) in the second transplant unit 51B (second transplant frame 69B).

Next, the power transmission system of the first transplantation unit 51A and the second transplantation unit 51B will be described.
As shown in FIG. 9, the first transmission shaft 70A is provided across the first connection plate 96 (96A) and the second connection plate 97 (97A) in the first transplantation unit 51A. One end side (the right side in FIG. 9) of the first transmission shaft 70 </ b> A is supported by the first connection plate 96 </ b> A via the first bearing 101. In addition, one end side of the first transmission shaft 70A protrudes inward in the width direction from the first connection plate 96A. The other end side (left side in FIG. 9) of the first transmission shaft 70A is supported by the second connecting plate 97A via the second bearing 102.

  The second transmission shaft 70B is provided across the first connection plate 96 (96B) and the second connection plate 97 (97B) in the second transplantation unit 51B. One end side (the right side in FIG. 9) of the second transmission shaft 70 </ b> B is supported by the first connection plate 96 </ b> B via the third bearing 103. In addition, one end side of the second transmission shaft 70B protrudes outward in the width direction from the first connection plate 96B. The other end side (left side in FIG. 9) of the second transmission shaft 70B is supported by the second connecting plate 97B via the fourth bearing 104. The other end side of the second transmission shaft 70B protrudes inward in the width direction from the second connection plate 97B.

Therefore, one end side (right side) of the first transmission shaft 70 </ b> A and the other end side (left side) of the second transmission shaft 70 </ b> B face each other and are detachably connected by the connection pipe (connection member) 105.
The electric motor 71 is attached to the attachment plate 106 attached to the inner side in the width direction K2 of the first stay 79A in the first transplant unit 51A. The electric motor 71 is provided with an output shaft 107. A first case 108 is attached to the support plate 99 (99A) in the first transplant unit 51A. The first case 108 is provided with a first input shaft 109 and a first drive shaft 110. The first input shaft 109 and the first drive shaft 110 are interlocked and connected by a gear mechanism in the first case 108. A second case 111 is attached to the support plate 99 (99B) in the second transplantation unit 51B. The second case 111 is provided with a second input shaft 112 and a second drive shaft 113. The second input shaft 112 and the second drive shaft 113 are interlocked and connected by a gear mechanism in the second case 111.

  A first sprocket 114 is provided on the output shaft 107. The first input shaft 109 is provided with a second sprocket 115 and a third sprocket 116. The first drive shaft 110 is provided with a fourth sprocket 117. The first transmission shaft 70A is provided with a fifth sprocket 118, a sixth sprocket 119, and a seventh sprocket 120. An eighth sprocket 121, a ninth sprocket 122, and a tenth sprocket 123 are provided on the second transmission shaft 70B. The second input shaft 112 is provided with an eleventh sprocket 124. A twelfth sprocket 125 is provided on the second drive shaft 113.

  The rotational power of the electric motor 71 is transmitted from the first sprocket 114 to the second sprocket 115 via the first chain 126, and the first input shaft 109 rotates. The power of the first input shaft 109 is transmitted to the first drive shaft 110 and the fourth sprocket 117 rotates. The power of the first input shaft 109 is transmitted from the third sprocket 116 to the fifth sprocket 118 through the second chain 127, and the first transmission shaft 70A rotates.

  The power of the first transmission shaft 70A is transmitted from the sixth sprocket 119 to the thirteenth sprocket 129 via the third chain 128. The power of the first transmission shaft 70 </ b> A is transmitted from the seventh sprocket 120 to the fourteenth sprocket 131 via the fourth chain 130. Further, the power of the first transmission shaft 70 </ b> A is transmitted to the second transmission shaft 70 </ b> B via the connection pipe 105.

  The power of the second transmission shaft 70B is transmitted from the eighth sprocket 121 to the fifteenth sprocket 133 via the fifth chain 132. The power of the second transmission shaft 70 </ b> B is transmitted from the ninth sprocket 122 to the sixteenth sprocket 135 through the sixth chain 134. Further, the power of the second transmission shaft 70B is transmitted from the tenth sprocket 123 to the eleventh sprocket 124 via the seventh chain 136, and the second input shaft 112 rotates. The power of the second input shaft 112 is transmitted to the second drive shaft 113 and the twelfth sprocket 125 rotates.

Next, the planting devices 68A and 68B will be described. First, the first planting device 68A that is the planting device of the first transplanting unit 51A will be described.
As shown in FIG. 10, the first planting device 68A has a plurality of (in this embodiment, two) planting mechanisms 68AL and 68AR. The planting mechanisms 68AL and 68AR are arranged side by side in the width direction K2. The planting mechanism 68AL is a planting mechanism located on the left side. The planting mechanism 68AR is a planting mechanism located on the right side. The left planting mechanism 68AL and the right planting mechanism 68AR are disposed at the same position in the front-rear direction K1.

As shown in FIGS. 6 and 10, the planting mechanism 68AL includes a planting tool 137, a support body 138, and an elevating device 139. Similar to the planting mechanism 68AL, the planting mechanism 68AR includes a planting tool 137, a support 138, and an elevating device 139.
The planting tool 137 is a member for planting a seedling in a cocoon (farm field). The planting tool 137 has a beak shape with the tip facing downward, and has a front component 140 and a rear component 141. The planting tool 137 is openable and closable when the front component 140 and the rear component 141 are separated and approached in the front-rear direction K1. In addition, the planting tool 137 can be supplied with seedlings from above in a closed state and can accommodate seedlings therein. In addition, the planting tool 137 can release the seedling by dropping it downward.

  The support body 138 is bolted at the front to the first mounting plate 94 and the second mounting plate 95 of the planting frame 78. The mounting position of the support body 138 can be changed with respect to the planting frame 78 in the width direction K2. By changing the mounting position of the support body 138, it is possible to change the interval between the planted seedlings (interval in the width direction K2 of the planted seedlings).

In the first transplanting unit 51A, the thirteenth sprocket 129 is supported by the support shaft 142 on the support body 138 of the left planting mechanism 68AL. The fourteenth sprocket 131 is supported by the support shaft 142 on the support body 138 of the right planting mechanism 68AR.
The lifting device 139 is a device that supports the planting tool 137 and lifts the planting tool 137. The lifting device 139 is attached to the support 138. The lifting device 139 includes a first case 143, a second case 144, and a mounting member 145. The first case 143 is rotatably supported by the support body 138 via the support shaft 142. The second case 144 is rotatably supported on the free end side of the first case 143. The attachment member 145 is supported by the second case 144. A planting tool 137 is supported on the mounting member 145. The attachment member 145 is provided with a seedling guide 146 located above the planting tool 137. The seedling guide 146 is formed in a cylindrical shape that is tapered toward the bottom, and guides the seedling supplied to the planting tool 137 from above to the planting tool 137. The attachment member 145 is biased upward by a spring.

  When the first case 143 is rotated by the support shaft 142, the first case 143 and the second case 144 are rotated so that the second case 144 rotates in the opposite direction to the first case 143 in conjunction with the rotation of the first case 143. A power transmission mechanism is provided inside. In addition, when the first case 143 and the second case 144 are rotated, the mounting member 145 moves in parallel up and down, and the planting tool 137 moves up and down.

  The seedling is dropped and supplied to the planting tool 137 at the raised position (top dead center position). At this time, the planting tool 137 is in a closed state, and the seedling is held inside the planting tool 137. Thereafter, the planting tool 137 descends while holding the seedlings, and the lower part of the planting tool 137 enters the basket (field). When the planting tool 137 enters the cocoon, the planting tool 137 opens to form a planting hole in the cocoon and releases a seedling into the planting hole (plants the seedling).

  In this embodiment, the left and right planting tools 137 are not moved up and down at the same time, but when one planting tool 137 rises, the other planting tool 137 descends. The attachment 137 is raised and lowered. Thus, two transplanted seedlings are planted in a staggered manner on the ridge by one transplanting unit (one of the seedlings adjacent in the width direction K2 is planted while being displaced from one to the other in the front-rear direction). Further, when the planting tool 137 stops, the left and right planting tools 137 stop at an intermediate position in the vertical movement range.

Next, the 2nd planting apparatus 68B which is a planting apparatus of the 2nd transplant unit 51B is demonstrated.
As shown in FIG. 10, the second planting device 68B also has a plurality of (two in this embodiment) planting mechanisms 68BL and 68BR, similarly to the first planting device 68A. The planting mechanisms 68BL and 68BR are arranged side by side in the width direction K2. The planting mechanism 68BL is a left planting mechanism, and the planting mechanism 68BR is a right planting mechanism. The left planting mechanism 68BL and the right planting mechanism 68BR are disposed at the same position in the front-rear direction K1.

The planting mechanism 68BL includes a planting tool 137, a support body 138, and an elevating device 139, similarly to the planting mechanism 68AL. Similar to the planting mechanism 68AR, the planting mechanism 68BR includes a planting tool 137, a support body 138, and a lifting device 139.
Since these planting tools 137, the support body 138, and the raising / lowering apparatus 139 are the same as that of the structure mentioned above, description is abbreviate | omitted.

In the second transplanting unit 51B, the fifteenth sprocket 133 is supported by the support shaft 142 on the support body 138 of the left planting mechanism 68BL. The sixteenth sprocket 135 is supported by the support shaft 142 on the support body 138 of the right planting mechanism 68BR.
Next, the seedling supply devices 72A and 72B will be described. First, the first seedling supply device 72A, which is the seedling supply device of the first transplant unit 51A, will be described.

The first seedling supply device 72A is disposed above the first planting device 68A. The seedlings are dropped and supplied to the planting tool 137 (first planting apparatus 68A) located below by the first seedling supply apparatus 72A. The first seedling supply device 72A is supported by the sixth frame material 87 and the seventh frame material 88 via the frame.
As shown in FIG. 11, the first seedling supply device 72A has a large number of supply cups 147 and 148 into which seedlings are introduced. The multiple supply cups 147 and 148 include multiple first supply cups 147 and multiple second supply cups 148. The first supply cup 147 and the second supply cup 148 are arranged in a loop so as to exhibit a long oval shape in the front-rear direction K1 in plan view. The first supply cup 147 and the second supply cup 148 are alternately arranged along an oval arrangement path.

  The first supply cup 147 and the second supply cup 148 are intermittently transferred in the arrow Y direction by the transfer mechanism 149 along the oval arrangement path. The transfer mechanism 149 includes a first rotating body 150, a second rotating body 151, and a cord body 152. The 1st rotary body 150 and the 2nd rotary body 151 are comprised by the sprocket. The cable body 152 is configured by an endless chain. The first rotator 150 and the second rotator 151 are supported by a frame that supports the first seedling supply device 72A so as to be rotatable about a vertical axis (a vertical axis). The first rotating body 150 is located at the front part of the transfer mechanism 149, and the second rotating body 151 is disposed behind the first rotating body 150. The cable body 152 is stretched over the first rotating body 150 and the second rotating body 151. The first supply cup 147 and the second supply cup 148 are arranged along the cable body 152 on the outer peripheral side of the cable body 152.

A drive sprocket 153 is provided below the first rotating body 150. The drive sprocket 153 is connected to the first rotating body 150 and the third drive shaft 154 so as to be integrally rotatable. Power is transmitted to the drive sprocket 153 via the eighth chain 155, and the first rotating body 150 rotates.
In the first transplant unit 51A, power is transmitted from the fourth sprocket 117 to the drive sprocket 153 via the eighth chain 155. In the second transplant unit 51B, power is transmitted from the twelfth sprocket 125 to the drive sprocket 153 via the eighth chain 155.

  As shown in FIG. 12, the first supply cup 147 includes a storage portion 156, an attachment portion 157, and a lid 158. Similarly, the second supply cup 148 includes a storage portion 160, a mounting portion 161, and a lid 162. The accommodating portions 156 and 160 are portions that accommodate the seedlings that have been thrown in, and are configured by a cylindrical body having an upper and lower opening shape. The attachment parts 157 and 161 are parts attached to the cord body 152. The lids 158 and 162 are members that close the bottoms of the accommodating portions 156 and 160. The lids 158 and 162 are pivotally supported by hinges 159 at the lower portions of the accommodating portions 156 and 160 so that the lower end openings of the accommodating portions 156 and 160 can be opened and closed. When the lids 158 and 162 are closed, the seedlings can be held in the accommodating portions 156 and 160, and when the lids 158 and 162 are opened, the seedlings can be discharged downward from the accommodating portions 156 and 160.

  As shown in FIG. 13, the lid 158 of the first supply cup 147 has a first engaging portion 163. The lid 162 of the second supply cup 148 has a second engaging portion 164. The first engaging portion 163 protrudes to the inner peripheral side of the arrangement path (the cord body 152) of the supply cups 147 and 148. The second engaging portion 164 protrudes on the outer peripheral side of the arrangement path (the cord body 152) of the supply cups 147 and 148.

  The lid 158 of the first supply cup 147 opens on the left side of the first rotating body 150 and the second rotating body 151 (one side in the width direction of the first rotating body 150 and the second rotating body 151). The position indicated by reference sign X1 is a first opening position where the lid 158 of the first supply cup 147 opens (opening position on one side in the width direction of the first rotating body 150 and the second rotating body 151). The lid 158 of the second supply cup 148 opens on the right side of the first rotating body 150 and the second rotating body 151 (the other side in the width direction of the first rotating body 150 and the second rotating body 151). The position indicated by reference sign X2 is a second opening position where the lid 158 of the second supply cup 148 opens (opening position on the other side in the width direction of the first rotating body 150 and the second rotating body 151). The first opening position X1 and the second opening position X2 are set at the same position in the front-rear direction K1.

A left planting tool 137 (referred to as a first planting tool 137A) of the planting device 68A is positioned below the first opening position X1. A right planting tool 137 (referred to as a second planting tool 137B) of the planting device 68A is located below the second opening position X2.
72 A of 1st seedling supply apparatuses can set the open position of supply cups 147 and 148 to the width direction one side and the other side of the 1st rotary body 150 and the 2nd rotary body 151 (the 1st open position X1, the 1st open position) 2) a setting member 166 capable of setting the two open positions X2. The setting member 166 includes a plurality of restriction rods 167, 168, 169, 170. For convenience of explanation, the restriction rod 167 is the first restriction rod 167, the restriction rod 168 is the second restriction rod 168, the restriction rod 169 is the third restriction rod 169, and the restriction rod 170 is the fourth restriction rod. 170.

  The first restriction rod 167 contacts the lower surfaces of the lids 158 and 162 of the first supply cup 147 and the second supply cup 148 on the front side of the first open position X1 and the second open position X2. Accordingly, the first restriction rod 167 restricts the opening of the lids 158 and 162 of the first supply cup 147 and the second supply cup 148 on the front side of the first open position X1 and the second open position X2. The second restriction rod 168 contacts the lower surfaces of the lids 158 and 162 of the first supply cup 147 and the second supply cup 148 on the rear side of the first open position X1 and the second open position X2. Accordingly, the second restriction rod 168 restricts the opening of the lids 158 and 162 of the first supply cup 147 and the second supply cup 148 on the rear side of the first open position X1 and the second open position X2.

  The third restriction rod 169 is located on the left side of the first opening position X1. The third restriction rod 169 contacts the lower surface of the second engagement portion 164 of the lid 162 at the first open position X1. This restricts the opening of the lid 162 of the second supply cup 148 at the first open position X1. The fourth restriction rod 170 is located on the left side of the second opening position X2. The fourth restriction rod 170 contacts the lower surface of the first engagement portion 163 of the lid 158 at the second open position X2. This restricts the opening of the lid 158 of the first supply cup 147 at the second open position X2.

The left rear end portion of the first restriction rod 167, the left front end portion of the second restriction rod 168, and the third restriction rod 169 constitute a first setting portion 196 that sets the first opening position X1. The right rear end portion of the first restriction rod 167, the right front end portion of the second restriction rod 168 and the fourth restriction rod 170 constitute a second setting portion 197 for setting the second opening position X2.
In the first open position X1, the lid 158 of the first supply cup 147 is disengaged from the first restriction rod 167 and the second restriction rod 168, and the first engagement portion 163 is not supported by the third restriction rod 169. This opens the lid 158 of the first supply cup 147. At this time, the first planting tool 137A has moved to the top dead center position, and the seedling discharged from the first supply cup 147 is supplied to the first planting tool 137A. Further, when the first supply cup 147 is located at the first open position X1, the first supply cup 147 is also located at the second open position X2. The first engagement portion 163 of the first supply cup 147 in the second open position X2 is restricted by the fourth restriction rod 170, and the lid 158 of the first supply cup 147 is not opened. At this time, the second planting tool 137B moves downward to plant seedlings in the cocoon.

  Further, when the second supply cup 148 is located at the first open position X1, the second supply cup 148 is also located at the second open position X2. The second engaging portion 164 of the second supply cup 148 located at the first open position X1 is restricted by the third restriction rod 169, and the lid 162 of the second supply cup 148 is not opened. Since the second engaging portion 164 of the second supply cup 148 located at the second open position X2 is not supported by the fourth restriction rod 170, the lid 162 of the second supply cup 148 opens. And the 1st planting tool 137A below the 1st open position X1 moves below, and has planted the seedling in the cocoon. The second planting tool 137 </ b> B has moved to the top dead center position below the second opening position X <b> 2, and seedlings are supplied from the second supply cup 148.

Next, the 2nd seedling supply device 72B which is a seedling supply device of the 2nd transplant unit 51B is explained.
The second seedling supply device 72B is disposed above the second planting device 68B. The seedlings are dropped and supplied to the planting tool 137 (second planting apparatus 68B) positioned below by the second seedling supply apparatus 72B. The second seedling supply device 72A is supported by the sixth frame material 87 and the seventh frame material 88 via the frame.

Since the configuration of the second seedling supply device 72B is the same as the configuration of the first seedling supply device 72A, description thereof is omitted.
The chair 42R is provided on the outer side in the width direction K2 (one side in the width direction) of the first seedling supply device 72A (the cord body 152). The chair 42L is provided outside the width direction K2 (the other side in the width direction) of the second seedling supply device 72B (the cord body 152). A seedling is supplied to the seedling supply device 72A by an operator seated on the chair 42L. A seedling is supplied to the seedling supply device 72B by an operator seated on the chair 42R.

Next, the leveling rollers 73A and 73B will be described. First, the leveling roller 73A of the first transplanting unit 51A will be described.
As shown in FIG. 2, the leveling roller 73A is disposed between the ridger 23L and the ridger 23R and in front of the planting device 68A. Further, the leveling roller 73 </ b> A rotates the upper surface of the ridge formed by the rear cover 19 of the rotary cultivator 2. The top surface of the cocoon is leveled before planting the seedling by the leveling roller 73A.

  As shown in FIGS. 14 and 15, the leveling roller 73A is supported by the transplant frame 69A via the left roller arm 172L and the right roller arm 172R. The roller arm 172L is pivotally supported by a support member 171L provided on the first frame member 82 so as to be rotatable about a horizontal axis. The roller arm 172R is pivotally supported by a support member 171R provided on the second frame member 83 so as to be rotatable about a horizontal axis. The roller arm 172L and the roller arm 172R are connected to each other. The leveling roller 73A is disposed between the front portions of the roller arm 172L and the roller arm 172R and is rotatably supported by the roller arms 172L and 172R.

A lower limit regulating member 173 that regulates the lower limit of the roller arm 172L is provided across the first frame member 82 and the roller arm 172L. A similar lower limit regulating member is also provided between the second frame member 83 and the roller arm 172R.
Next, the leveling roller 73B of the second transplanting unit 51B will be described.
As shown in FIG. 2, the leveling roller 73B is disposed between the ridger 23L and the ridger 23R and in front of the planting device 68B. Further, the leveling roller 73 </ b> B rotates the upper surface of the ridge formed by the rear cover 19 of the rotary cultivator 2. The top surface of the cocoon is leveled before planting the seedling by the leveling roller 73B.

Since the support structure of the leveling roller 73B has the same configuration as that of the first transplanting unit 51A, description thereof is omitted.
As shown in FIG. 14, the transplanter 3 includes a detector 174, a control device 175, and a stock setting device 176. The detector 174 is a sensor that detects the rotational speed of the leveling rollers 73A and 73B, and is provided on the side of one of the leveling rollers 73A and 73B. The detection value of the detector 174 is input to the control device 175. The control device 175 is connected to the electric motor 71. The inter-strain setting unit 176 is a device that sets the inter-strain of seedlings to be planted (interval between seedlings in the front-rear direction K1). The set value set by the stock setting unit 176 is input to the control device 175. The control device 175 controls the electric motor 71 to be turned on or off, so that the stock is set between the stocks setter 176.

  The vehicle speed of the tractor 1 varies depending on the manufacturer, speed change, and engine rotation, and the transfer speed of the transplanter 3 varies accordingly. Therefore, the interval between the set stocks is determined based on the detection value of the detector 174. That is, the moving speed (vehicle speed) of the transplanter 3 is detected by the detector 174, and based on this moving speed, the time for turning off the electric motor 71 (the seedling supply devices 72A and 72B and the planting devices 68A and 68B are stopped). Time). Thereby, it can plant correctly between the set stocks.

Next, the cover rings 74A and 74B will be described. First, the cover ring 74A of the first transplant unit 51A will be described.
As shown in FIG. 2, in the first transplanting unit 51A, two cover rings 74A are provided behind the left planting mechanism 68AL and two are provided behind the right planting mechanism 68AR. The cover ring 74 </ b> A rotates the top surface of the cocoon so that the root portion of the planted seedling is soiled and covered, and the root portion of the seedling is pressed down.

As shown in FIGS. 14 and 15, the cover ring 74 </ b> A is supported by the transplant frame 69 </ b> A via the cover frame 177. The soil covering frame 177 includes a left soil covering arm 178L, a right soil covering arm 178R, a connecting bar 179, and four support rods 180.
A front portion of the soil covering arm 178L is pivotally supported by the support member 171L so as to be rotatable around the horizontal axis. The front portion of the soil covering arm 178R is pivotally supported by the support member 171R so as to be rotatable around the horizontal axis. The connecting bar 179 connects the rear portions of the soil covering frame 177L and the soil covering frame 177R.

  The support rod 180 is provided corresponding to the cover ring 74A. Each support rod 180 is formed in an L shape, and its upper end is fixed to the connecting bar 179. A cover ring 74A is rotatably supported at the front end of the support rod 180. The mounting position of the support rod 180 with respect to the connecting bar 179 can be changed in the width direction K2. Thereby, it corresponds to the interval adjustment of the planting tool 137.

  The soil covering frame 177 is urged downward by the urging mechanism 181. The biasing mechanism 181 includes a biasing rod 182 and a biasing spring 183. The urging rod 182 has an upper end penetrating the ninth frame member 90 and is prevented from being pulled downward by a retaining member 184. The lower end of the urging rod 182 is pivotally supported at the center of the connecting bar 179 in the width direction K2. A spring receiver 185 is provided at an intermediate portion of the biasing rod 182. A biasing spring 183 made of a coil spring is provided between the spring receiver 185 of the biasing rod 182 and the ninth frame member 90.

Next, the cover ring 74B of the second transplant unit 51B will be described.
As shown in FIG. 2, in the second transplant unit 51B, two cover rings 74B are provided behind the left planting mechanism 68BL and two are provided behind the right planting mechanism 68BL. The soil covering ring 74B rotates on the upper surface of the cocoon so as to gather and cover the root portion of the planted seedling, and suppresses the root portion of the seedling.

As shown in FIGS. 14 and 15, the soil covering ring 74 </ b> B is supported by the transplant frame 69 </ b> B via the soil covering frame 177. Since the support structure of the soil covering ring 74B has the same configuration as that of the first transplanting unit 51A, description thereof is omitted.
16 to 19 show modifications. First, the first transplant unit 51A will be described.

  As shown in FIGS. 18 and 19, in this modification, the first seedling supply device 72A has a first opening position X1 (opening position on one side in the width direction) and a second opening position X2 (opening position on the other side in the width direction). Are set at different positions in the front-rear direction K1. In the present embodiment, the second opening position X2 is displaced backward with respect to the first opening position X1. Further, as shown in FIGS. 16 and 17, the right planting of the planting device 68A corresponding to the second open position X2 being displaced backward with respect to the first open position X1. The mechanism 68AR is displaced backward with respect to the left planting mechanism 68AL.

  In this modification, a third transmission shaft 191A is provided behind the first transmission shaft 70A. A seventeenth sprocket 192A is provided on the first transmission shaft 70A. A twentieth sprocket 193A and a seventh sprocket 120 are provided on the third transmission shaft 191A. Power is transmitted from the 17th sprocket 192A to the 20th sprocket 193A via the ninth chain 194A, and the third transmission shaft 191A rotates.

In this modification, the lid 158 of the first supply cup 147 opens at the first open position X1, and the lid 164 of the second supply cup 148 opens at the second open position X2. Further, the left planting mechanism 68AL and the right planting mechanism 68AR move up and down simultaneously. This realizes staggered planting.
Moreover, in this modification, the position where the planting tool 137 stops is the top dead center position. In order to perform inter-strain control, the planting tool 137 must be stopped. However, if the planting tool 137 is stopped at an intermediate position in the vertical movement range, a problem may occur. For example, when planting seedlings of hard vegetables such as tomato and pepper, if the planting tool 137 stops at an intermediate position in the vertical movement range, the planting tool 137 hits the planted seedling stem and the seedling falls down. There is a fear. In this modified example, the first planting tool 137A and the second planting tool 137B are shifted back and forth, and the first planting tool 137A and the second planting tool 137B are moved up and down at the same time to realize zigzag planting. Therefore, the planting tool 137 can be stopped at the top dead center position. Thereby, the fall of the seedling can be prevented.

Next, the second transplant unit 51B will be described.
As shown in FIGS. 18 and 19, the second seedling supply device 72B also has a first opening position X1 (opening position on one side in the width direction) and a second opening position X2 (like the first seedling supply device 72A). (Open position on the other side in the width direction) is set at a different position in the front-rear direction K1. Also in the second transplantation unit 51B, as in the first transplantation unit 51A, the second opening position X2 is displaced backward with respect to the first opening position X1. Moreover, as shown in FIGS. 16 and 17, the right planting device 68B has a right planting corresponding to the second opened position X2 being displaced rearward from the first opened position X1. The mechanism 68BR is displaced backward with respect to the left planting mechanism 68BL.

  Further, a fourth transmission shaft 191B is provided behind the second transmission shaft 70B. An 18th sprocket 192B is provided on the second transmission shaft 70B. The fourth transmission shaft 191B is provided with a twentieth sprocket 193B and a ninth sprocket 122. Power is transmitted from the eighteenth sprocket 192B to the twentieth sprocket 193B via the tenth chain 194B, and the fourth transmission shaft 191B rotates.

Also in the second transplanting unit 51B, the lid 158 of the first supply cup 147 opens at the first open position X1, and the lid 164 of the second supply cup 148 opens at the second open position X2. Further, the left planting mechanism 68BL and the right planting mechanism 68BR are moved up and down simultaneously. This realizes staggered planting.
Others are the same as the 1st transplantation unit 51A.

  FIG. 20 shows another modification. In this other modification, the power for driving the planting devices 68A and 68B and the seedling supply devices 72A and 72B is taken from the power for driving the rotary tiller 2 (ground work machine). A gear mechanism 187 for transmitting the power transmitted to the intake shaft 21 to the shaft 186 in the support arm 13L is provided in the gear case 12. The power of the support arm 13L is transmitted to the chain transmission means 189 in the transmission case 14, and the power transmitted to the chain transmission means 189 is transmitted to the rotating shaft 16. The shaft 186 protrudes from the transmission case 14, and a transmission sprocket 189 is fixed to the protruding portion of the shaft 186. A transmission chain 190 is wound around the transmission sprocket 189 and the second sprocket 115. The transmission sprocket 189, the transmission chain 190, and the second sprocket 115 constitute a transmission device 195 that transmits the power for driving the rotary tiller 2 to the planting devices 68A and 68B and the seedling supply devices 72A and 72B.

By taking the power for driving the planting devices 68A and 68B and the seedling supply devices 72A and 72B from the rotary cultivator 2, the power can be effectively used.
In the present embodiment as described above, the transplanter 3 can be attached to the rotary cultivator 2 attached to the rear portion of the tractor 1, so that the transplanting operation can be performed while plowing with the single transplanter 4.

  Moreover, it has the rotary tiller 2 which has the gauge rings 27L and 27R and the support frame 26, and has the 1st attachment frame 48L and the 2nd attachment frame 48R which are extended from the rotary tiller 2, and the 1st attachment frame 48L. The tool bar 49 is attached between the rear part of the second attachment frame 48R, the support frame 26 and the tool bar 49 are connected by the connecting member (first height changing device) 50, and the graft frames 69A and 69B attached to the tool bar 49 are connected. The planting devices 68A and 68B are supported. Thereby, it is possible to position the transplant frames 69A and 69B and the planting devices 68A and 68B on the rear side of the rotary tiller 2, and the load of the transplant frames 69A and 69B and the planting devices 68A and 68B is applied to the gauge ring 27L. , 27R. Therefore, planting can be performed without applying a large load to the rotary tiller 2 behind the rotary tiller 2, and the loads of the transplant frames 69A and 69B and the planting devices 68A and 68B are used for the tilling work of the rotary tiller 2. The influence can be prevented.

  In addition, the transplanter frame 75 is mounted on the rotary tiller 2 that can freely change its height relative to the field. The transplanter frame 75 is provided with planting devices 68A and 68B, and the rotary tiller 2 A first height changing device 50 is provided for changing the height of the transplanter frame 75 with respect to the above. More specifically, the rotary tiller 2 is provided on the rotary machine frame 11, gauge wheels 27 </ b> L and 27 </ b> R that set the height of the rotary tiller 2, and the rotary machine frame 11 so as to be swingable up and down. The support frame 26 that supports the gauge wheels 27L and 27R, and the second height changing device 28 that changes the height of the gauge wheels 27L and 27R by swinging the support frame 26 up and down. The transplanter frame 75 and the first height changing device 50 are connected. Thereby, the planting depth of a seedling can be changed with respect to the rotary tiller 2, and even if the height of the rotary tiller 2 is changed, the planting depth of the seedling can be changed.

  The transplanter frame 75 is attached to the rotary machine frame 11 so as to be swingable up and down, a tool bar 49 provided on the mounting frames 48L and 48R, and a tool bar 49 detachably attached to the tool bar 49. The first height changing device 50 includes a support bracket 56 attached to the support frame 26, the support bracket 56 and the tool bar. The transplant frames 69A and 69B are attached to the planting devices 68A and 68B. 49, the telescopic fold 57 that can be expanded and contracted is provided, so that the structure for changing the height of the transplanter frame 75 can be realized with a simple configuration.

Further, since the telescopic rod 57 of the first height changing device 50 is attached to the attachment pieces 66L, 66R provided on the attachment portions 76 of the transplantation frames 69A, 69B, the attachment pieces 66L, 66R are attached to the transplantation frame 69A, It does not interfere with the attachment of 69B.
Further, the planting device 68A, the seedling supply device 72A, the leveling roller 73A, the cover ring 74A, the first transmission shaft 70A, the electric motor 71 and the like are assembled to the transplant frame 69A to form the first transplant unit 51A, and the planting device 68B The seedling supply device 72B, the leveling roller 73B, the covering ring 74B, the second transmission shaft 70B, and the like are assembled to the second transplantation frame 69B to form the second transplantation unit 51B, and the first transplantation unit 51A and the second transplantation unit 51B are combined. Since it is attached to the tool bar 49, the planting devices 68A and 68B, the seedling supply devices 72A and 72B, the leveling rollers 73A and 73B, the covering soil rings 74A and 74B, etc. can be easily attached and detached, and the assembling workability is good. . Further, by attaching the first transplantation unit 51A and the second transplantation unit 51B to the tool bar 49, the number of planting strips of the transplantation work machine 4 can be easily changed in accordance with the model and specifications of the transplantation work machine 4. be able to.

  Further, the first mounting frame 48L includes a first member 52 extending rearward through the upper side of the horizontal frame member 34 and a second member 53 extending downward from the first member 52, and the second mounting frame 48R is formed. The third member 54 extends rearward through the upper side of the horizontal frame member 34 and the fourth member 55 extends downward from the first member. The tool bar 49 is formed at the lower ends of the second member 53 and the fourth member 55. It is provided between the clubs. Accordingly, the first mounting frame 48L, the second mounting frame 48R, and the tool bar 49 are favorably attached to the rotary tiller 2 without the support frame 26 interfering with the assembly of the first mounting frame 48L and the second mounting frame 48R. Can be assembled.

Moreover, it has the detector 174 which detects the rotational speed of the leveling rollers 73A and 73B, the electric motor 71 is controlled by the control device 175 based on the detection value of the detector 174, and the stock is set by the stock setter 176. Since it is between the set stocks, even if the moving speed of the transplanter 3 changes, planting work can be performed between the correct stocks.
Further, chairs 42L and 42R are arranged above the gauge wheels 27L and 27R, and the chairs 42L and 42R are supported by the wheel frames 36L and 36R. Therefore, the chairs 42L and 42R can be firmly supported using the wheel frames 36L and 36R, and the worker can be firmly supported. In addition, the chairs 42L and 42R can be disposed on the sides of the transplant frames 69A and 69B.

Further, by providing the uprights 23L and 23R in front of the gauge wheels 27L and 27R, it is possible to prevent the rotation of the gauge wheels 27L and 27R from being obstructed by soil.
Further, by connecting the first transmission shaft 70A for transmitting power to the first planting device 68A and the second transmission shaft 70B for transmitting power to the second planting device 68B by the connecting pipe 105, Power from the electric motor 71 is transmitted from the first transmission shaft 70A to the second transmission shaft 70B, transmitted from the first transmission shaft 70A to the first planting device 68A, and from the second transmission shaft 70B to the second planting device 68B. The power transmission system can be simplified (the power of the first transplantation unit 51A and the second transplantation unit 51B can be shared).

  Moreover, it has the 1st seedling supply apparatus 72A which transmits motive power from the electric motor 71 and supplies seedlings to the 1st planting apparatus 68A, motive power is transmitted from the 2nd transmission shaft 70B, and the 2nd planting apparatus Since it has the 2nd seedling supply device 72B which supplies a seedling to 68B, power is transmitted from electric motor 71 to the 1st seedling supply device 72A, and power is transmitted to the 2nd seedling supply device 72B from the 2nd transmission shaft 70B. The power transmission system can be simplified.

  In addition, the setting member 166 can set the opening position of the lids 158 and 162 of the supply cups 147 and 148 to one side and the other side in the width direction, and is below the opening position (first opening position X1) on one side. Since the first planting tool 137A is provided and the second planting tool 137B is provided below the open position (second open position X2) on the other side, it is compatible with compact four-row planting in the width direction K2 of the traveling vehicle 1. Can be provided.

  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.

DESCRIPTION OF SYMBOLS 1 Traveling vehicle 2 Ground working machine 26 Support frame 27L Gauge wheel 27R Gauge wheel 41L Chair 41R Chair 150 1st rotary body 151 2nd rotary body 152 Cord body 156 Storage part 157 Attachment part 158 Cover 147 Supply cup 148 Supply cup 166 Setting member 137A First planting tool 137B Second planting tool 196 First setting unit 197 Second setting unit

Claims (5)

A traveling vehicle,
A first rotating body rotatably supported;
A second rotator disposed behind the first rotator and rotatably supported;
An endless cord stretched between the first rotating body and the second rotating body;
A large number of supply cups having a storage portion for storing seedlings, an attachment portion attached to the cable body, and a lid provided at a lower portion of the storage portion;
A setting member that can contact the lid of the supply cup and set the open position of the lid of the supply cup on one side and the other side in the width direction of the traveling vehicle;
A first planting tool capable of entering a farm and planting seedlings and provided below the open position on one side in the width direction;
A second planting tool capable of entering a farm and planting seedlings and provided below the open position on the other side in the width direction;
A transplanting machine equipped with. The setting member is
A first setting unit that sets an opening position on one side in the width direction on one side in the width direction of the first rotating body and the second rotating body; and an opening position on the other side in the width direction. The transplanting machine according to claim 1, further comprising a second setting unit that is set on the other side in the width direction of the second rotating body.   The transplanting machine according to claim 1 or 2, wherein the setting member sets the opening position on one side in the width direction and the opening position on the other side in the width direction at the same position in the front-rear direction. A ground work machine mounted on a rear portion of the traveling vehicle;
A chair on which an operator sits;
With
The ground work machine has a gauge wheel that sets the height of the ground work machine, and a support frame that supports the gauge wheel,
The transplanting machine according to claim 1 or 2, wherein the chair is located on one side of the traveling body in the width direction of the traveling vehicle and is supported by the support frame.   The transplanting machine according to claim 1, wherein the setting member sets the opening position on one side in the width direction and the opening position on the other side in the width direction at different positions in the front-rear direction.

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