JP6530295B2 - Transplanter - Google Patents

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a transplanting work machine having a ground working machine working on a field and a planting device for planting seedlings in the field.

Conventionally, a technique disclosed in Patent Document 1 is known as a transplant work machine.
The transplanting working machine disclosed in Patent Document 1 includes a traveling vehicle, a rotary cultivator, and a transplanting machine, and can use one machine to plant the cultivating and seedlings while traveling.

JP, 2010-239915, A

In the conventional transplanting work machine, it was not possible to change the planting depth of seedlings with respect to the rotary cultivator. Therefore, when the height of the rotary tiller is changed, there arises a problem that the planting depth of the seedlings is changed.
Then, an object of this invention is to provide the transplanting working machine which can change the planting depth of a seedling with respect to a ground working machine.

The technical measures taken by the present invention to solve the above technical problems are characterized by the following points.
According to an aspect of the present invention, there is provided a transplanting work machine according to an embodiment of the present invention, a ground working machine capable of changing the height with respect to a field and performing work on the field, and a transplanting machine frame vertically attached A planting device provided on the transplanting machine frame for planting seedlings in a field; and a first height changing device for changing the height of the transplanting machine frame relative to the ground work machine, the ground work machine Has a support frame supported by a gauge wheel which sets the height of the ground work machine, and the transplant machine frame has a mounting frame pivotally supported by the ground work machine so as to be vertically pivotable, and the mounting frame And a support frame mounted on the support frame and having a tool bar provided on the frame, and an implant frame removably mounted on the tool bar and having the planting device mounted thereon. Bracket and the above And a extendable telescopic rod which is provided between the lifting bracket and the toolbar.

In addition, the transplanting work machine includes a traveling vehicle on which the ground work machine is mounted, a motor for driving the planting device, a ground roller capable of being grounded to a field, and a detector for detecting the rotation speed of the ground roller. And an inter-stock setter for setting between seedlings of the seedlings to be planted, and a control device for controlling the prime mover based on the detection value of the detector to set between inter-stocks between the stocks set by the inter-stock setter. .

Further, porting machine, the ground working machine, the support frame and vertically swingably provided working machine frame, a second to change the previous SL setting the support frame up and down swing is allowed by the gauge wheel to have a and height changing device.

In addition, the transplanting work machine is a ground working machine capable of changing the height with respect to the field and performing the work on the field, a transplanting machine frame mounted vertically movably to the ground working machine, and the transplanting machine frame A planting device for planting seedlings in a field, and a first height changing device for changing the height of the transplanting machine frame relative to the ground work machine, the ground work machine comprising a work machine frame A gauge wheel for setting the height of the ground work machine, a support frame provided on the work machine frame so as to freely swing up and down, and supporting the gauge wheel, and swinging the support frame up and down And a second height changing device for changing the setting of the gauge wheel, wherein the support frame is connected to the transplant machine frame by the first height change device, and the transplant machine frame is configured to perform the operation A mounting frame pivotally supported by the machine frame so as to be vertically pivotable; And an implant frame removably attached to the toolbar and to which the planting device is attached, the first height changing device comprising a support bracket attached to the support frame And a telescopic telescopic lever provided between the support bracket and the tool bar.

The front SL transplantation frame has an attachment portion attached to the tool bar, and a mounting piece the lower end of the telescopic rod provided in the attachment portion is attached via the support pins.
Moreover, the said ground working machine is a rotary tiller.

According to the present invention, the following effects are achieved.
A height a freely ground working machine transplanter frame vertically movably mounted on the changes to 圃 field, this transplanter frame, changing the planting device, the height of the transplanter frame for ground working machines And a first height changing device. Thereby, the planting depth of the seedling can be changed with respect to the ground work machine, and even if the height of the ground work machine is changed, the planting depth of the seedling can be changed.

In addition, even if the moving speed of the planting device changes, the planting operation can be performed between the correct stocks.
In addition, even if the height of the ground work machine is changed, it is possible to realize a transplant work machine in which the planting depth of the seedlings can be changed.
Moreover, the structure which changes the height of a transplant machine frame can be implement | achieved by easy structure.

In addition, since the expansion / contraction wedge of the first height changing device is attached to the attachment piece provided on the attachment portion of the implant frame, the attachment piece does not become an obstacle for attachment of the implant frame to the tool bar.
In addition, since the ground working machine is a rotary cultivator, it is possible to perform the transplanting work while plowing with one transplanting working machine.

It is a side view of a transplant working machine. It is a schematic plan view of a rotary cultivator 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 a side view partial cross section figure of the 1st height change device. It is a rear view of a 1st height change apparatus. It is a side view of a transplant frame and a planting device. It is a top view of a transplant frame. It is a front view of a transplant frame. It is a schematic block diagram which shows a power transmission system. It is a top view of a planting device. It is a schematic plan view of a seedling supply apparatus. It is a back sectional view of a seedling supply device. It is an arrangement | positioning figure of the lid | cover 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 soil leveling roller and soil covering wheel. It is a side view of the planting device concerning a modification. It is a top view of the planting device concerning a modification. It is a schematic plan view of the seedling supply apparatus which concerns on a modification. It is an arrangement | positioning figure of the cover of the supply cup which concerns on 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 mounted on the rear of the traveling vehicle 1, and a transplanting machine 3 mounted on the ground working machine 2.
In the present embodiment, a tractor is illustrated as the traveling vehicle 1. In addition, a rotary cultivator is illustrated as the ground working machine 2. In addition, the traveling vehicle 1 should just be a vehicle which drive | works other than a tractor. Moreover, the ground working machine 2 is not limited to a rotary tiller, and may be a machine that works on a field. For example, the ground work machine 2 may be a setting machine for setting a weir in a field, or a multi-film laying machine for setting a multi-film on a weir. In addition, although the rotary cultivator 1 exemplifies a 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's seat 5 of the tractor 1 is forward, the rear side (right side in FIG. 1) of the driver is rear, and the left side of the driver And the right side of the driver (the far side in FIG. 1) is the right side. Further, a 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 a width direction.

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

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

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

The upper part of the tillage part 18 is covered with upper cover (illustration omitted). The rear of the tillage 18 is covered by a rear cover 19. The upper end of the rear cover 19 is pivotally supported by the upper cover and can be pivoted up and down. The rear cover 19 is biased downward by the pressure control device 20. The pressure control 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 direction of arrow A1 in FIG. When the rotating shaft 16 rotates in the A1 direction, the tilling claws 17 cultivate the soil and release it to the rear cover 19 at the rear. The soil cultivated by the cultivating section 18 is leveled by the rear cover 19 to form the upper surface of the weir. The side surface of the coffin is formed by countering machine 23L, 23R mentioned later.

The rotary machine frame 11 has 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 member that supports the gauge wheels 27L and 27R. Gauge wheels 27L and 27R are members for setting the height of the rotary cultivator 2 (ground work machine). In other words, the gauge wheels 27L and 27R are members for setting the tilling depth of the rotary tiller 2. The second height changing device 28 is a device that swings the support frame 26 up and down to change the settings of the gauge wheels 27L and 27R.

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 has a left swinging arm 31L, a right swinging 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 swing arm 31L has its front end pivotally supported by the support stay 24L. The swinging arm 31L protrudes rearward from the support arm 13L. The swing arm 31R has its front end pivotally supported by the support stay 24R. The swinging arm 31R protrudes rearward from the support arm 13R. The connecting rod 32 connects intermediate 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 portions of the swing arms 31L and the front ends of the swing arms 31R.

The rear frame 30 includes the left connecting rod 33L, the right connecting rod 33R, the horizontal frame 34, the left vertical frame 35L, the right vertical frame 35R, the left wheel frame 36L, and the right And a wheel frame 36R.
The connecting rod 33L is inserted into the swing arm 31L from the rear end and 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 rearward of the front frame 29 and disposed along the width direction K2. In addition, the horizontal frame member 34 is connected to the rear ends of the connecting rod 33L and the connecting rod 33R. The upper portion of the vertical frame member 35L is fixed to the left portion of the horizontal frame member 34 and protrudes downward from the left portion of the horizontal frame member 34. The upper part of the vertical frame member 35R is fixed to the right part of the horizontal frame member 34 and protrudes downward from the right part of the horizontal frame member 34.

  The wheel frame 36L has 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 35L, and protrudes rearward from the lower portion of the vertical frame 35L. The rear member 38L has a front portion fixed to a rear upper surface of the front member 37L and protrudes rearward from the front member 37L. The wheel frame 36R has a front member 37R and a rear member 38R. The front member 37R has a front end fixed to the lower portion of the vertical frame 35R, and protrudes rearward from the lower portion of the vertical frame 35R. The rear member 38R has a front portion fixed to a rear upper surface 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 of the rear member 38L. The upper portion of the wheel stay 39R is also fixed to the front of the rear member 38R. A gauge wheel 27L is rotatably attached to the lower portion of the wheel stay 39L. The right gauge wheel 27R is rotatably attached to the lower portion of the wheel stay 39R.
In front of the gauge wheel 27L, a lidger 23L is disposed. Also in front of the gauge wheel 27R, a riser 23R is disposed. The raising device 23L is attached to the lower part of the vertical frame 35L. The raising device 23R is attached to the lower part of the vertical frame 35R. The setter 23L forms the left side of the coffin. The setter 23R forms the right side surface of the bowl.

  At the rear portion of the rear member 38L, a projecting member 40L that protrudes outward in the width direction K2 is provided. Also at the rear of the rear member 38R, a projecting member 40R that protrudes outward in the width direction K2 is provided. At the outer end (the end on the outer side in the width direction K2) of the projecting member 40L, a support column 41L is provided to project upward. At the outer end of the projecting member 40R, a column 41R is provided to project upward. At the upper ends of the columns 41L and 41R, chairs 42L and 42R for workers (for workers to sit) are provided. 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 located above the gauge wheel 27L, and the chair 42R is located above the gauge wheel 27R.

  As shown in FIG. 3, the second height changing device 28 has a second cover cylinder 43, a second screw rod 44, a second movable rod 45, and a second operation handle 46. The upper portion of the second cover cylinder 43 is pivotally supported by the mast 25. The second screw rod 44 is internally provided in the second cover cylinder 43, and can be rotationally operated about the axial center by the second operation handle 46. The second movable rod 45 is inserted into the second cover cylinder 43 from the lower end of the second cover cylinder 43, and the upper end portion is screwed to the second screw rod 44. The 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 operating handle 46 is operated to rotate the second screw rod 44, the second movable rod 45 is screwed or unscrewed from the screw rod. When the second movable wedge 45 is screwed, the second movable wedge 45 protrudes from the second cover cylinder 43. When the second movable wedge 45 is screwed out, the second movable wedge 45 enters the second cover cylinder 43. As a result, the second height changing device 28 expands and contracts, the support frame 26 swings up and down, and the heights of the gauge wheels 27L and 27R can be changed. By changing the heights of the gauge wheels 27L and 27R, the height of the tilling portion 18 can be changed to change the tilling depth.

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

  The first mounting frame 48L is disposed on the left side of the transplanter 3 and extends rearward from the left side of the rotary cultivator 2. The first mounting frame 48L has a first member 52 and a second member 53. The front end of the first member 52 is detachably attachable to the upper portion of the transmission case 14, and in the attached state, is pivotally supported about a horizontal axis (an axial center in the width direction K2). The first member 52 extends rearward from the top of the transmission case 14. Specifically, the first member 52 extends to the rear of the lateral frame 34 through the upper side of the lateral frame 34. The second member 53 is disposed longitudinally in the rear of the horizontal frame member 34. The upper portion 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 mounting frame 48R is disposed on the right side of the transplanter 3 and extends rearward from the right side of the rotary cultivator 2. The second mounting frame 48R has a third member 54 and a fourth member 55. The front end of the third member 54 is detachably attachable to the upper portion of the side frame 15, and in the attached state, is pivotally supported about the horizontal axis. The third member 54 extends rearward from the top of the side frame 15. Specifically, the third member 54 extends to the rear of the lateral frame member 34 through the upper side of the lateral frame member 34. The fourth member 55 is vertically disposed rearward of the horizontal frame member 34. The upper portion 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 formed of a square pipe and is mounted between the rear of the first mounting frame 48L and the second mounting 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 change device 50 is a device (member) that changes the height of the toolbar 49. In other words, the first height changing device 50 is a device (member) that changes the height of the plurality of transplant units 51A and 51B to change 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 elastic 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 abuts on the upper surface of the horizontal frame member 34. The lower wall 59 b abuts on the lower surface of the horizontal frame member 34. The rear wall 59 c abuts on the rear surface of the horizontal frame member 34. The fixing member 59 is fitted from the rear to the central portion of the lateral frame member 34 in the width direction K2. Further, the fixing member 59 is detachably fixed to the lateral frame member 34 by the mounting pins 62 penetrating the upper wall 59 a, the lower wall 59 b and the lateral frame member 34.

The lower end portion of the bracket main body 60 is fixed to the fixing member 59. The front portion of the mounting stay 61L is bolted to the left end of the upper end of the bracket body 60. The front portion of the mounting stay 61R is bolted to the right portion of the upper end of the bracket body 60.
The telescopic rod 57 has a first cover cylinder 63, a first screw rod 64, and a first movable rod 65. An upper portion of the first cover cylinder 63 is disposed between the mounting stay 61L and the mounting stay 61R. Further, 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 internally provided in the first cover cylinder 63, and can be rotationally operated about the axial center by the first operation handle 58. The first movable rod 65 is inserted into the first cover cylinder 63 from the lower end of the first cover cylinder 63 and is screwed into the first screw rod 64. The lower end of the first movable wedge 65 is inserted between the attachment piece 66L and the attachment piece 66R. The lower end of the first movable wedge 65 is pivotally supported on the attachment pieces 66L and 66R by a support pin 67 penetrating the first movable wedge 65 and the attachment pieces 66L and 66R. The attachment piece 66R is provided to the first transplantation unit 51A. The attachment piece 66L is provided to the second transplantation unit 51B. In addition, the site | part to which attachment piece 66L, 66R is attached is mentioned later.

  When the first operating handle 58 is operated to rotate the first screw rod 64, the first movable rod 65 is screwed or unscrewed from the screw rod. When the first movable wedge 65 is screwed, the first movable wedge 65 protrudes from the first cover cylinder 63. When the first movable wedge 65 is screwed back, the first movable wedge 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 porting unit 51A and the second porting unit 51B move up and down. By vertically moving the first transplanting unit 51A and the second transplanting unit 51B, the heights of the planting devices 68A and 68B provided in the first transplanting unit 51A and the second transplanting unit 51B are changed, and the planting of seedlings is carried out. Depth is changed.

First, the schematic configuration of the transplantation units 51A and 51B will be described.
As shown in FIGS. 2 and 9, the first transplantation unit 51 </ b> A is disposed on the right side of the transplantation machine 3. The first implanting unit 51A includes an implanting frame (also referred to as a first implanting frame) 69A, a first transmission shaft 70A, an electric motor (motor) 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 coated wheels 74A. The first porting frame 69A is detachably attached to the right portion of the tool bar 49. The first planting device 68A, the first seedling feeder 72A, the leveling roller 73A, and the plurality of coated wheels 74A are provided on the first transplanting frame 69A.

  The second implant unit 51B is an implant unit provided side by side in the width direction K2 with respect to the first implant unit 51A, and is disposed at the left portion of the implanter 3. The second transplanting unit 51B includes a transplanting frame (also referred to as a second transplanting 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). It also has a plurality of soil coated wheels 74B, and a soiling roller (grounding roller) 73B and a plurality of soil coated wheels 74B. The second transplanting frame 69 B is detachably attached to the left side of the tool bar 49. The second planting device 68B, the second seedling feeding device 72A, the leveling roller 73B, and the plurality of coated wheels 74B are provided in the second transplanting frame 69B.

A transplant machine frame 75 is configured by the first attachment frame 48L, the second attachment frame 48R, the tool bar 49, the first implant frame 69A and the second implant frame 69B. The transplanting machine frame 75 is mounted so as to be vertically movable with respect to the rotary cultivator 2 (ground work machine).
Next, the transplantation frames 69A and 69B will be described. First, the first implant frame 69A, which is the implant frame of the first implant unit 51A, will be described.

  As shown in FIGS. 6 to 8, the first transplantation frame 69A has 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 has a first stay 79 and a plurality of (three in the present embodiment) second stays 80. The first stay 79 abuts on the rear surface of the tool bar 49. The second stay 80 is in contact with the front of the tool bar 49. The first stay 79 and the second stay 80 are fastened by the mounting bolt 81. The frame attachment portion 76 is attached to the tool bar 49 by holding the tool bar 49 between the first stay 79 and the second stay 80.

The main frame 77 is a frame to which the first seedling feeder 72A, the leveling roller 73A, and the plurality of coated wheels 74A are attached. The main frame 77 has first to tenth frame members 82 to 91. The first to tenth frame members 82 to 91 are formed of square pipe members.
The first frame member 82 protrudes rearward from the left portion 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 171L is provided to project downward at a front and rear midway portion of the first frame member 82. A support member 171R is provided to project downward at a front and rear midway portion of the second frame member.

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 the front and rear middle portions (central portion) of the first frame member 82. The fifth frame member 86 projects upward from the front and rear middle portions (central portion) of 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.

  The seventh frame member 88 projects rearward from a middle portion (central portion) in the width direction K2 of the sixth frame member 87. The eighth frame member 89 couples the middle portion (central portion) of the third frame member 84 in the width direction K 2 to the seventh frame member 88. The ninth frame member 90 projects 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 to each other.

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 to the left from the central 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 an upper portion of the first vertical member 92 so as to project forward. The second vertical member 93 is disposed to the right of 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 connection plate 98 connects the upper ends of the first vertical member 92 and the second vertical member 93, and connects the first connection plate 96 and the second connection plate 97.

Next, a second transplantation frame 69B which is a transplantation frame of the second transplantation unit 51B will be described.
Similar to the first implant frame 69A, the second implant frame 69B also has a frame attachment portion (attachment portion) 76, a main frame 77, and a planting frame 78. The configurations of the frame attachment portion 76, the main frame 77, and the planting frame 78 are the same as those described above, and thus the description thereof is omitted.

The second seedling feeder 72B, the leveling roller 73B, and the plurality of coated wheels 74A are attached to the main frame 77 of the second transplanting frame 69B.
A second planting device 68B is attached to the planting frame 78 of the second implanting frame 69B.
As shown in FIG. 5, an attachment piece 66R is attached to the inward side in the width direction K2 of the first stay 79 (79A) in the first implantation unit 51A (first implantation frame 69A). Further, the attachment piece 66L is attached to the inward side in the width direction K2 of the first stay 79 (79B) in the second transplantation unit 51B (the second transplantation frame 69B).

Next, power transmission systems 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 implantation unit 51A. One end side (right side in FIG. 9) of the first transmission shaft 70A is supported by the first connection plate 96A via the first bearing 101. Further, 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 connection 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 implantation unit 51B. One end side (right side in FIG. 9) of the second transmission shaft 70B is supported by the first connection plate 96B via the third bearing 103. Further, 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 connection plate 97B via the fourth bearing 104. Further, 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 70A and the other end side (left side) of the second transmission shaft 70B face each other and are connected detachably by the connection pipe (connection member) 105.
The electric motor 71 is attached to a mounting plate 106 attached to the inward side in the width direction K2 of the first stay 79A in the first transplantation unit 51A. The electric motor 71 is provided with an output shaft 107. The first case 108 is attached to the support plate 99 (99A) in the first implantation 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. The 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.

  The output shaft 107 is provided with a first sprocket 114. The first input shaft 109 is provided with a second sprocket 115 and a third sprocket 116. A fourth sprocket 117 is provided on the first drive shaft 110. A fifth sprocket 118, a sixth sprocket 119, and a seventh sprocket 120 are provided on the first transmission shaft 70A. An eighth sprocket 121, a ninth sprocket 122, and a tenth sprocket 123 are provided on the second transmission shaft 70B. An eleventh sprocket 124 is provided on the second input shaft 112. 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 to rotate the fourth sprocket 117. In addition, the power of the first input shaft 109 is transmitted from the third sprocket 116 to the fifth sprocket 118 via the second chain 127, and the first transmission shaft 70A is rotated.

  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. Further, the power of the first transmission shaft 70A is transmitted from the seventh sprocket 120 to the fourteenth sprocket 131 via the fourth chain 130. Furthermore, the power of the first transmission shaft 70A is transmitted to the second transmission shaft 70B 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 70B is transmitted from the ninth sprocket 122 to the sixteenth sprocket 135 via 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 is rotated. The power of the second input shaft 112 is transmitted to the second drive shaft 113 to rotate the twelfth sprocket 125.

Next, the planting devices 68A and 68B will be described. First, the first planting device 68A, which is a planting device for the first transplantation unit 51A, will be described.
As shown in FIG. 10, the first planting device 68A has a plurality of (two in the present embodiment) 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 138, and a lifting device 139. Similar to the planting mechanism 68AL, the planting mechanism 68AR includes a planting tool 137, a support 138, and a lifting device 139.
The planting tool 137 is a member for planting seedlings in a pot (field). The planting tool 137 has a beak shape with its tip facing downward, and has a front structure 140 and a rear structure 141. The planting tool 137 can be opened and closed by separating and approaching the front structure 140 and the rear structure 141 in the front-rear direction K1. In the closed state, the planting tool 137 can supply the seedlings from above and can accommodate the seedlings inside. Further, the planting implement 137 is capable of dropping and releasing the seedlings downward in an open state.

  The support 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 138 is changeable in the width direction K2 with respect to the planting frame 78. By changing the mounting position of the support 138, it is possible to change the spacing between the planted seedlings (the distance between the planted seedlings in the width direction K2).

In the first implantation unit 51A, a thirteenth sprocket 129 is supported by a support shaft 142 on a support 138 of the left planting mechanism 68AL. In addition, a fourteenth sprocket 131 is supported by a support shaft 142 on a support 138 of the right planting mechanism 68AR.
The lifting device 139 is a device for supporting the planting tool 137 and moving the planting tool 137 up and down. The lifting device 139 is attached to the support 138. The lifting device 139 has a first case 143, a second case 144, and a mounting member 145. The first case 143 is rotatably supported by the support 138 via a support shaft 142. The second case 144 is rotatably supported on the free end side of the first case 143. The mounting member 145 is supported by the second case 144. A planting tool 137 is supported by the mounting member 145. Further, a seedling guide 146 located above the planting tool 137 is provided on the mounting member 145. The seedling guide 146 is formed in a cylindrical shape that is tapered toward the lower side, and guides the seedling supplied from above to the planting tool 137 to the planting tool 137. The mounting 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 interlocked with the rotation of the first case 143 so that the second case 144 rotates in the opposite direction to 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 up and down in parallel, and the planting tool 137 moves up and down.

  The seedlings are dropped and supplied to the planting implement 137 at the raised position (top dead center position). At this time, the planting tool 137 is closed, and the seedlings are 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 rushes into the weir (field). When the planting tool 137 is pushed into the cocoon, the planting tool 137 opens to form a planting hole in the cocoon and releases the seedling in the planting hole (plants the seedling).

  Moreover, in this embodiment, when the left and right planting tools 137 do not move up and down at the same time, when one of the planting tools 137 is lifted, the other planting tool 137 is lowered. The attachment 137 is raised and lowered. As a result, two transplanting plants are planted in a staggered manner in the cocoon by one transplanting unit (planting one of the adjacent seedlings in the width direction K2 with the position shifted to the front or back with respect to the other). In addition, when the planting tool 137 is stopped, the left and right planting tools 137 are stopped at an intermediate position in the vertical movement range.

Next, the second planting device 68B, which is a planting device for the second transplantation unit 51B, will be described.
As shown in FIG. 10, the second planting device 68B also has a plurality (two in the present embodiment) of 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 planting mechanism on the left side, and the planting mechanism 68BR is a planting mechanism on the right side. The left planting mechanism 68BL and the right planting mechanism 68BR are disposed at the same position in the front-rear direction K1.

Similar to the planting mechanism 68AL, the planting mechanism 68BL includes a planting tool 137, a support 138, and a lifting device 139. Similar to the planting mechanism 68AR, the planting mechanism 68BR includes a planting tool 137, a support 138, and a lifting device 139.
The planting implement 137, the support 138, and the lifting and lowering device 139 have the same configuration as described above, and thus the description thereof is omitted.

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

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

  The first supply cup 147 and the second supply cup 148 are intermittently transferred by the transfer mechanism 149 along the oval arrangement path in the arrow Y direction. The transfer mechanism 149 has a first rotating body 150, a second rotating body 151, and a rope 152. The first rotating body 150 and the second rotating body 151 are configured by sprockets. The rope 152 is constituted by an endless chain. The first rotating body 150 and the second rotating body 151 are rotatably supported by a frame supporting the first seedling supply device 72A around a vertical axis (an axial center in the vertical direction). The first rotating body 150 is located at the front of the transfer mechanism 149, and the second rotating body 151 is located behind the first rotating body 150. The cord 152 is bridged between the first rotator 150 and the second rotator 151. The first supply cup 147 and the second supply cup 148 are disposed along the rope 152 on the outer peripheral side of the rope 152.

Below the first rotating body 150, a drive sprocket 153 is provided. The drive sprocket 153 is integrally rotatably coupled via the first rotary body 150 and the third drive shaft 154. Power is transmitted to the drive sprocket 153 via the eighth chain 155, and the first rotating body 150 is rotated.
In the first implantation unit 51A, power is transmitted from the fourth sprocket 117 to the drive sprocket 153 via the eighth chain 155. In the second implantation 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 has a housing portion 156, an attachment portion 157, and a lid 158. Similarly, the second supply cup 148 also has a housing portion 160, an attachment portion 161, and a lid 162. The housing portions 156 and 160 are portions for housing the introduced seedlings, and are formed of upper and lower opening cylinders. The attachment portions 157 and 161 are portions attached to the rope 152. The lids 158 and 162 are members that close the bottoms of the housing portions 156 and 160. The lids 158 and 162 are pivotally supported by hinges 159 below the accommodating portions 156 and 160 so that the lower end openings of the accommodating portions 156 and 160 can be opened and closed. By closing the lids 158 and 162, the seedlings can be held in the housings 156 and 160, and by opening the lids 158 and 162, the seedlings can be discharged downward from the housings 156 and 160.

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

  The lid 158 of the first supply cup 147 opens at 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 numeral X1 is the first open position (the open position on one side in the width direction of the first rotating body 150 and the second rotating body 151) in which the lid 158 of the first supply cup 147 is open. In the second supply cup 148, the lid 158 is opened 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 numeral X2 is a second open position (the open position on the other side in the width direction of the first rotary body 150 and the second rotary body 151) in which the lid 158 of the second supply cup 148 is open. The first open position X1 and the second open position X2 are set at the same position in the front-rear direction K1.

A planting tool 137 (referred to as a first planting tool 137A) on the left of the planting device 68A is located below the first open position X1. A planting tool 137 (referred to as a second planting tool 137B) on the right of the planting device 68A is located below the second open position X2.
The first seedling feeder 72A can set the open position of the supply cups 147 and 148 to one side and the other side in the width direction of the first rotary body 150 and the second rotary body 151 (a first open position X1, the first 2) A setting member 166 is provided which can set the open position X2. The setting member 166 includes a plurality of regulating rods 167, 168, 169, 170. For convenience of explanation, the first regulation 杆 167, the second regulation 杆 168, the third regulation 杆 169, the third regulation 杆 170, the first regulation 杆 167, the third regulation 杆 169, the fourth regulation 杆 170 It is 170.

  The first restricting hook 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. Therefore, the first restricting bar 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 wedge 168 abuts on 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. Therefore, the second restricting bar 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 bar 169 is located on the left side of the first open position X1. The third restricting ridge 169 abuts on the lower surface of the second engaging portion 164 of the lid 162 in the first open position X1. This regulates the opening of the lid 162 of the second supply cup 148 at the first open position X1. The fourth restriction bar 170 is located on the left side of the second open position X2. The fourth restriction bar 170 abuts on the lower surface of the first engaging portion 163 of the lid 158 in the second open position X2. Thereby, the opening of the lid 158 of the first supply cup 147 at the second open position X2 is restricted.

A first setting unit 196 configured to set the first open position X1 is configured by the left rear end portion of the first restriction bar 167, the left front end portion of the second restriction bar 168, and the third restriction bar 169. A second setting unit 197 configured to set a second open position X2 is configured by the right rear end of the first restricting bar 167, the right front end of the second restricting bar 168, and the fourth restricting bar 170.
In the first open position X1, the lid 158 of the first supply cup 147 is disengaged from the first restricting bar 167 and the second restricting bar 168, and the first engaging portion 163 is not supported by the third restricting bar 169. This causes the lid 158 of the first supply cup 147 to open. At this time, the first planting tool 137A is moved to the top dead center position, and the seedlings discharged from the first supply cup 147 are supplied to the first planting tool 137A. When the first supply cup 147 is positioned at the first open position X1, the first supply cup 147 is also positioned at the second open position X2. The first engaging portion 163 of the first supply cup 147 in the second open position X2 is restricted by the fourth restricting bar 170 and the lid 158 of the first supply cup 147 does not open. At this time, the second planting tool 137B is moved downward to plant seedlings on the weir.

  Further, when the second supply cup 148 is positioned at the first open position X1, the second supply cup 148 is also positioned 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 restrictor 169 so that the lid 162 of the second supply cup 148 does not open. The second engaging portion 164 of the second supply cup 148 located at the second open position X2 is not supported by the fourth restricting bar 170, so the lid 162 of the second supply cup 148 is opened. And the 1st planting tool 137A of the downward direction of 1st open position X1 is moved downward, and is planting a seedling in a weir. In addition, the second planting tool 137B is moved to the top dead center position below the second open position X2, and seedlings are supplied from the second supply cup 148.

Next, a second seedling supply device 72B which is a seedling supply device of the second transplantation unit 51B will be described.
The second seedling feeder 72B is disposed above the second planting device 68B. The seedlings are dropped and supplied to the planting implement 137 (second planting device 68B) positioned below by the second seedling supply device 72B. The second seedling feeder 72A is supported by the sixth frame member 87 and the seventh frame member 88 via a frame.

The configuration of the second seedling supply device 72B is the same as the configuration of the first seedling supply device 72A, so the description will be omitted.
The chair 42R is provided outward (one side in the width direction) in the width direction K2 of (the rope body 152 of) the first seedling feeder 72A. The chair 42L is provided outward (in the other side in the width direction) in the width direction K2 of (the rope body 152) of the second seedling feeder 72B. Seedlings are supplied to the seedling supply device 72A by an operator seated on the chair 42L. Seedlings are supplied to the seedling supply device 72B by the operator seated on the chair 42R.

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

  As shown in FIGS. 14 and 15, the leveling roller 73A is supported by the transplanting 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 that the rear portion thereof can be rotated about the horizontal axis. The roller arm 172R is pivotally supported by a support member 171R provided on the second frame member 83 so that the rear portion thereof can be rotated about the horizontal axis. The roller arm 172L and the roller arm 172R are mutually connected. The leveling roller 73A is disposed between the roller arm 172L and the front portion of the roller arm 172R, and is rotatably supported by the roller arms 172L and 172R.

Further, a lower limit regulating member 173 is provided which regulates the lower limit of the roller arm 172L across the first frame member 82 and the roller arm 172L. A similar lower limit member is provided between the second frame member 83 and the roller arm 172R.
Next, the leveling roller 73B of the second transplantation unit 51B will be described.
As shown in FIG. 2, the leveling roller 73B is disposed between the leveling device 23L and the leveling device 23R, and in front of the planting device 68B. In addition, the leveling roller 73 B rotates the upper surface of the weir formed by the rear cover 19 of the rotary cultivator 2. Before the planting of the seedlings, the upper surface of the weir is leveled by the leveling roller 73B.

The support structure of the leveling roller 73B has the same configuration as that of the first implantation unit 51A, and thus the description thereof is omitted.
As shown in FIG. 14, the implanter 3 includes a detector 174, a controller 175, and an inter-stock setter 176. The detector 174 is a sensor that detects the rotational speed of the ground adjustment rollers 73A and 73B, and is provided on the side of one of the ground adjustment rollers 73A and 73B. The detected value of the detector 174 is input to the controller 175. The controller 175 is connected to the electric motor 71. The inter-strain setter 176 is an apparatus for setting the inter-strain interval of the seedlings to be planted (the interval between the seedlings in the front-rear direction K1), and is, for example, a dial for setting between the strains. The set value set by the inter-share setter 176 is input to the controller 175. The control device 175 performs control to turn the electric motor 71 on or off to set between the stocks set by the stock setting device 176.

  The vehicle speed of the tractor 1 changes depending on the manufacturer, the shift, and the rotation of the engine, which changes the transfer speed of the transplanter 3. Therefore, to set between the set stocks, it is performed based on the detection value of the detector 174. That is, the moving speed (vehicle speed) of the transplanting machine 3 is detected by the detector 174, and based on this moving speed, the time for turning off the electric motor 71 (seedling supply devices 72A, 72B and planting devices 68A, 68B are stopped) Adjust the time). This allows for accurate planting between set strains.

Next, the covered wheels 74A and 74B will be described. First, the covered ring 74A of the first transplantation unit 51A will be described.
As shown in FIG. 2, in the first implantation unit 51A, two soil covering wheels 74A are provided behind the left planting mechanism 68AL, and two are provided behind the right planting mechanism 68AR. The soil covering wheel 74A rotates the upper surface of the cocoon, soils the soil at the root portion of the planted seedlings, and crushes the root portions of the seedlings.

As shown in FIG. 14 and FIG. 15, the covered soil wheel 74A is supported by the transplanting frame 69A via the covered soil frame 177. The soil covering frame 177 has a left soil covering arm 178L, a right soil covering arm 178R, a connecting bar 179, and four support rods 180.
The soil covering arm 178L is pivotally supported by the support member 171L at its front portion so as to be rotatable about the lateral axis. The soil covering arm 178R is pivotally supported by the support member 171R at its front portion so as to be rotatable about the lateral 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 covered ring 74A. Each support rod 180 is formed in an L shape, and its upper end is fixed to the connection bar 179. A covered 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 connection bar 179 can be changed in the width direction K2. This corresponds to the adjustment of the row of the planting tool 137.

  The soil covering frame 177 is biased downward by a biasing mechanism 181. The biasing mechanism 181 has a biasing rod 182 and a biasing spring 183. An upper end of the biasing rod 182 penetrates the ninth frame member 90, and the biasing rod 182 is retained downward by the retaining member 184. The lower end of the biasing rod 182 is pivotally supported by the central portion of the connecting bar 179 in the width direction K2. At an intermediate portion of the biasing rod 182, a spring receiver 185 is provided. A biasing spring 183 consisting of a coil spring is provided between the spring support 185 of the biasing rod 182 and the ninth frame member 90.

Next, the covered ring 74B of the second transplantation unit 51B will be described.
As shown in FIG. 2, in the second transplant unit 51B, two soil coated wheels 74B are provided behind the left planting mechanism 68BL, and two are provided behind the right planting mechanism 68BL. The soil covering wheel 74B rotates the upper surface of the cocoon, soils the soil at the root portion of the planted seedlings, and crushes the root portion of the seedlings.

As shown in FIG. 14 and FIG. 15, the covered soil wheel 74 </ b> B is supported by the transplanting frame 69 </ b> B via the covered soil frame 177. The support structure of the covered ring 74B has the same configuration as that of the first implantation unit 51A, and thus the description thereof is omitted.
16 to 19 show a modification. First, the first transplantation unit 51A will be described.

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

  Further, in this modification, a third transmission shaft 191A is provided at the rear of the first transmission shaft 70A. A seventeenth sprocket 192A is provided on the first transmission shaft 70A. A 20th sprocket 193A and a 7th sprocket 120 are provided on the third transmission shaft 191A. Power is transmitted from the seventeenth sprocket 192A to the twentieth sprocket 193A via the ninth chain 194A, and the third transmission shaft 191A is rotated.

Moreover, 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. Also, the left planting mechanism 68AL and the right planting mechanism 68AR move up and down simultaneously. By this, the planting of birds is realized.
Moreover, in this modification, the position where the planting tool 137 stops is the top dead center position. Although it is necessary to stop the planting tool 137 to perform inter-stock control, if the planting tool 137 is stopped at an intermediate position in the vertical movement range, problems may occur. For example, when planting a seedling of stems and 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 stem of the planted seedling and the seedling falls There is a fear. In this modification, 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 simultaneously moved up and down to realize staggered planting. Therefore, the planting tool 137 can be stopped at the top dead center position. This can prevent the falling of the seedlings.

Next, the second transplantation unit 51B will be described.
As shown in FIGS. 18 and 19, the second seedling supply device 72B also has the first open position X1 (the open position on one side in the width direction) and the second open position X2 (the second open position X2) as in the first seedling supply device 72A. The opening 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 open position X2 is displaced rearward relative to the first open position X1. In addition, as shown in FIGS. 16 and 17, the right planting of planting device 68B is performed corresponding to the second open position X2 being displaced rearward relative to the first open position X1. The mechanism 68BR is displaced rearward with respect to the left planting mechanism 68BL.

  In addition, a fourth transmission shaft 191B is provided at the rear of the second transmission shaft 70B. An eighteenth sprocket 192B is provided on the second transmission shaft 70B. A 20th sprocket 193B and a 9th sprocket 122 are provided on the fourth transmission shaft 191B. 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 transplantation 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 move up and down simultaneously. By this, the planting of birds is realized.
Others are similar to those of the first transplantation unit 51A.

FIG. 20 shows another modification. In this other modification, power for driving the planting devices 68A, 68B and the seedling feeders 72A, 72B is obtained from power for driving the rotary cultivator 2 (ground work machine). In the gear case 12, 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. The power of the support arm 13L is transmitted to the chain transmission means 188 in the transmission case 14, and the power transmitted to the chain transmission means 188 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. Also, 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 195 for transmitting power for driving the rotary cultivator 2 to the planting devices 68A, 68B and the seedling feeders 72A, 72B.

By taking power for driving the planting devices 68A, 68B and the seedling feeders 72A, 72B from the rotary cultivator 2, effective use of the power can be achieved.
In the above embodiment, by attaching the transplanting machine 3 to the rotary cultivator 2 attached to the rear of the tractor 1, the transplanting work can be performed while cultivating with one transplanting work machine 4.

  Further, the rotary cultivator 2 having the gauge wheels 27L and 27R and the support frame 26 is provided, and the first mounting frame 48L and the second mounting frame 48R extending rearward from the rotary cultivator 2 are provided. And the rear part of the second mounting frame 48R, the support frame 26 and the tool bar 49 are connected by the connecting member (first height changing device) 50, and the implant frame 69A, 69B attached to the tool bar 49 is connected. It supports planting devices 68A, 68B. Thereby, the implanting frames 69A, 69B and the planting devices 68A, 68B can be positioned on the rear side of the rotary cultivator 2, and the load of the implanting frames 69A, 69B and the planting devices 68A, 68B can be , 27R. Therefore, the planting operation can be performed behind the rotary cultivator 2 without applying a large load to the rotary cultivator 2, and the load of the transplanting frames 69A and 69B and the planting devices 68A and 68B is for cultivating the rotary cultivator 2 It can prevent influence.

  In addition, the transplanter frame 75 attached to the rotary cultivator 2 whose height with respect to the field can be freely moved up and down is provided. The transplanter frame 75 is provided with the planting devices 68A and 68B. The first height changing device 50 is provided to change the height of the transplanting machine frame 75 with respect to the above. More specifically, the rotary cultivator 2 is provided on the rotary machine frame 11, gauge wheels 27L and 27R for setting the height of the rotary cultivator 2, and the rotary machine frame 11 so as to be vertically pivotable. The support frame 26 has a support frame 26 for supporting the gauge wheels 27L and 27R, and a second height changing device 28 for swinging the support frame 26 up and down to change the heights of the gauge wheels 27L and 27R. The porting frame 75 and the first height changer 50 are connected. Thereby, the planting depth of a seedling can be changed with respect to the rotary cultivator 2, and even if the height of the rotary cultivator 2 is changed, the planting depth of a seedling can be changed.

  In addition, the transplantation machine frame 75 is detachably mounted on the mounting frames 48L and 48R pivotally supported on the rotary machine frame 11 so as to be vertically pivotable, the tool bar 49 provided on the mounting frames 48L and 48R, and 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, and the planting devices 68A and 68B. Since it has the stretchable telescoping rod 57 provided between it and 49, the structure which changes the height of the transplant machine frame 75 can be realized with a simple configuration.

In addition, since the expansion / contraction rod 57 of the first height changing device 50 is attached to the attachment pieces 66L, 66R provided on the attachment parts 76 of the implant frames 69A, 69B, the attachment pieces 66L, 66R are attached to the implant frame 69A, It does not interfere with the installation of the 69B.
Also, the planting device 68A, the seedling feeder 72A, the soil conditioner roller 73A, the soil roller 74A, the first transmission shaft 70A, the electric motor 71, etc. are assembled to the transplanting frame 69A to form a first transplanting unit 51A, and the planting device 68B , The seedling feeder 72B, the leveling roller 73B, the coated roller 74B, the second transmission shaft 70B, etc. are assembled to the second transplanting frame 69B to form the second transplanting unit 51B, and the first transplanting unit 51A and the second transplanting unit 51B are assembled. As it is attached to the tool bar 49, the planting devices 68A, 68B, the seedling feeders 72A, 72B, the leveling rollers 73A, 73B, the coated wheels 74A, 74B, etc. can be easily attached and removed, and the assembling workability is good. . In addition, by attaching the first porting unit 51A and the second porting unit 51B to the tool bar 49, the number of planting strips of the porting machine 4 can be easily changed in accordance with the model, specifications, etc. of the porting machine 4 be able to.

  Further, the first mounting frame 48L is configured of 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 A third member 54 extending rearward through the upper side of the horizontal frame member 34 and a fourth member 55 extending downward from the first member, and the tool bar 49 is formed by the lower ends of the second member 53 and the fourth member 55 It is provided between the parts. As a result, the first mounting frame 48L, the second mounting frame 48R and the tool bar 49 can be favorably made to the rotary cultivator 2 without the support frame 26 becoming an obstacle to the assembly of the first mounting frame 48L and the second mounting frame 48R. It can be assembled.

Further, a detector 174 for detecting the rotational speed of the land adjustment rollers 73A and 73B is provided, and the electric motor 71 is controlled by the control device 175 based on the detection value of the detector 174. Since the setting is made between the stocks, even if the moving speed of the transplanter 3 changes, the planting work can be performed between the correct stocks.
Further, chairs 42L and 42R are disposed 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 by using the wheel frames 36L and 36R, and the worker can be firmly supported. Also, the chairs 42L and 42R can be disposed on the side of the transplantation frames 69A and 69B.

Further, by providing facing devices 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 impeded by the soil.
Also, 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, The 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. And the power transmission system can be simplified (the power of the first implant unit 51A and the second implant unit 51B can be shared).

  In addition, power is transmitted from the electric motor 71, and the first seedling supply device 72A that supplies the seedlings to the first planting device 68A is provided, and power is transmitted from the second transmission shaft 70B, and the second planting device Since the second seedling supply device 72B for supplying seedlings to the 68B, power is transmitted from the electric motor 71 to the first seedling supply device 72A and power is transmitted from the second transmission shaft 70B to the second seedling supply device 72B. The power transmission system can be simplified.

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

  Although the present invention has been described above, it should be understood that the embodiments disclosed herein are illustrative and non-restrictive in every respect. The scope of the present invention is indicated not by the above description but by claims, and is intended to include all modifications within the meaning and scope equivalent to claims.

1 Traveling vehicle (tractor)
2 Ground work machine (rotary cultivator)
11 Working machine frame (Rotary machine frame)
75 Porting machine frame 68A Planting device 68B Planting device 50 First height changing device 71 Motor (electric motor)
74A grounding roller 74B grounding roller 174 detector,
175 control device 176 share setter,
27L gauge wheel 27R gauge wheel 26 support frame 28 second height changing device 48L mounting frame 48R mounting frame 49 tool bar 69A implanting frame 69B implanting frame 56 support bracket 57 telescopic rod 76 mounting portion 67 support pin 66L mounting piece 66R mounting piece

Claims (6)

A ground working machine whose height relative to the field is variable and which works on the field;
A transplant machine frame attached to the ground work machine so as to be vertically movable;
A planting device provided on the transplanting machine frame for planting seedlings in a field;
A first height changing device for changing the height of the transplanting machine frame relative to the ground work machine;
Equipped with
The ground work machine has a support frame supported by gauge wheels that set the height of the ground work machine,
The transplanting machine frame is detachably attached to a mounting frame pivotally supported by the ground work machine so as to be vertically pivotable, a tool bar provided on the mounting frame, and the tool bar, and the planting apparatus is With a porting frame attached,
The said 1st height change apparatus is a transplant working machine which has a support bracket attached to the said support frame, and the expansion-contraction expansion-contraction weir provided between the said support bracket and the said tool bar . A traveling vehicle on which the ground work machine is mounted;
A motor for driving the planting device;
A grounding roller that can be grounded to the field,
A detector for detecting the rotational speed of the contact roller;
An inter-plant setter, which sets between the stocks of seedlings to be planted,
A control device that controls the prime mover based on the detection value of the detector to make the space between the stocks set by the space setting device;
The transplantation work machine according to claim 1, comprising: The ground working machine, organic and working machine frame, wherein the supporting frame is mounted for up and down swinging, a second and a height changing device for a pre-Symbol support frame change the configuration of the vertical swing is allowed by the gauge wheel The transplanting working machine according to claim 1 or 2. A ground working machine whose height relative to the field is variable and which works on the field;
A transplant machine frame attached to the ground work machine so as to be vertically movable;
A planting device provided on the transplanting machine frame for planting seedlings in a field;
A first height changing device for changing the height of the transplanting machine frame relative to the ground work machine;
Equipped with
The ground work machine includes a work machine frame, a gauge wheel for setting the height of the ground work machine, and a support frame which is provided on the work machine frame so as to freely swing up and down, and which supports the gauge wheel. And a second height changing device configured to swing the support frame up and down to change the setting of the gauge wheel,
The support frame is connected to the transplant machine frame by the first height changer,
The transplanting machine frame is detachably mounted on a mounting frame pivotally supported by the working machine frame so as to be vertically pivotable, a tool bar provided on the mounting frame, and the tool bar, and the planting apparatus is With a porting frame attached,
The said 1st height change apparatus is a transplant working machine which has a support bracket attached to the said support frame, and the expansion-contraction expansion-contraction weir provided between the said support bracket and the said tool bar. The transplant frame includes a mounting portion attached to the tool bar, any one of claims 1 to 4, the lower end of the telescopic rod provided in the mounting portion has a mounting piece which is attached via a support pin Transplanter described in.   The transplanting working machine according to any one of claims 1 to 5, wherein the ground working machine is a rotary tiller.

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