JP3291165B2 - Planting part structure of transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a planting structure of a transplanter.

[0002]

2. Description of the Related Art For example, a transplanter disclosed in Japanese Patent Application Laid-Open No. 4-173006 is a walking type, and a field (ridge) is provided at the rear of a traveling vehicle by a planting cylinder which is moved up and down by a vertical movement mechanism. A planting device for planting seedlings at predetermined intervals,
A seedling supply device that supplies seedlings one by one from a seedling tray to a seeding device by a seedling removal claw is mounted, and a multi-film that perforates a seeding hole in advance in a multi-film at a position where a seeding tube is inserted. A perforation device is provided.

[0003] These planting apparatus and multi-film perforating apparatus are driven by the rotational power of a PTO shaft (output shaft) protruding from a transmission case. It is mounted on a traveling vehicle via a planting transmission case freely mounted and a mounting plate. In this conventional transplanter, the planting cylinder is supported by a substantially triangular planting arm pivotally attached to the distal end side of the crank arm, and includes a guide roller provided on the planting arm.
An up-down movement mechanism that slides and supports a vertically extending guide groove provided on a guide body fixed to the mounting plate to move the planting tube up and down by rotation of the crank arm.

[0004]

In the above-mentioned conventional transplanting machine, it is necessary to remove the mounting plate from the planting transmission case in order to detach the planting device from the traveling vehicle in order to maintain the planting device. However, the main parts of the vertical movement mechanism (planting tube, planting arm, etc.) are attached to the planting transmission case, and the guide grooves that constitute a part of the vertical movement mechanism are provided on the mounting plate side. The planting device cannot be disengaged from the traveling vehicle with the movement mechanism attached, that is, with the guide roller slidably supported in the guide groove.

Therefore, in order to perform maintenance by removing the planting device from the traveling vehicle, it is necessary to disassemble the planting device once.
It is necessary to further adjust the operation timing of each component, which not only increases the number of man-hours, but also adjusts the operation timing in the state of being mounted on the traveling vehicle, and the workability is poor, and it is difficult to adjust with high accuracy. is there. Therefore, the present invention
So that the planting device can be integrally attached to and detached from the traveling vehicle,
The purpose is to improve maintainability and workability.

[0006]

In order to achieve the above object, the present invention takes the following technical measures. That is, the present invention is,
Pivotally swing frame 62 about its axis on a support shaft 21 provided on the left and right protruded to run line vehicle 12 is supported, the rocking frame 62 is vertically moved by vertical movement mechanism Planting This is a planting portion structure of a transplanter in which a planting device 60 for planting seedlings in a field 14 by a tube 61 is mounted. A bracket 64 is detachably attached to the swing frame 62, and the support shaft 21 is When the bracket 64 is removed from the swing frame 62, the up-down movement mechanism moves the swing frame 62.
The swing frame 62 is mounted on the traveling vehicle 1
2 is configured to be able to be separated.

Further , the present invention provides that
Swingable vertically through a support shaft 21 provided in the shape of
A frame 62 is attached.
14 is equipped with a planting device 60 for planting seedlings,
The swing frame 62 has its left and right front ends pivoted about the support shaft 21.
Brackets that are supported and that are
The support shaft 21 is detachably provided.
PTO shaft for transmitting power from train 12 to planting device 60
It is characterized by being.

[0008]

When the planting device is maintained, the vertical movement mechanism is attached to the frame and removed integrally from the traveling vehicle to adjust the operation timing of each component of the vertical movement mechanism. The planting equipment can be easily maintained, and the improved maintainability enables highly accurate adjustment.
Thereafter, if the frame is attached to the traveling vehicle integrally with the planting device, the operation timing of the vertical movement mechanism is not disturbed when the planting device is attached to the traveling vehicle, and the planting accuracy is improved.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. The vegetable transplanter 11 shown in FIG. 6 is a walking type having a steering handle 13 at the rear of a traveling
4, the soil block seedlings are planted at predetermined intervals on the ridges 14 covered with the multi-film M while traveling in the longitudinal direction across the four. The traveling vehicle 12 includes the main frame 1
5, a gantry 16 provided at the front end of the main frame 15 and the like. The main frame 15 is formed of a square pipe or the like,
Its front portion is bent downward and is fixed to the side of the gantry 16, and its rear portion is bent upward to serve as an attachment portion for the steering handle 13. The engine 1 on the gantry 16
The engine 17 is covered with a bonnet 18 and a transmission case 19
Is fixed, and the engine 17
Power is transmitted.

The power from the inside of the transmission case 19 is supplied to a wheel transmission shaft 20 projecting to the left and right sides, and to the wheel transmission shaft 2.
The first PT provided rearward from the left side and protruding left and right.
An O-shaft 21 and a second PTO shaft 22 projecting rearward and upward are taken out by three systems. The left and right ends of the wheel transmission shaft 20 support left and right drive wheels 24 (rear wheels) via a transmission case 23 that swings up and down around the axis.
The drive wheels 24 can be driven by the internal winding transmission 25. This drive wheel 24 rolls in the groove between the ridges 14. In addition, a pair of left and right front wheels 26 and a ridge height detection roller 27 are provided at a front portion of the traveling vehicle 12.

FIG. 7 exemplifies a power transmission system in the transmission case 19, and the power of the engine 17 is transmitted from the wrapping transmission means 28 to the input shaft 29. Mission case 1
9, a rotating shaft 30, an intermediate shaft 31,
The back shaft 32, the wheel transmission shaft 20, and the first PTO shaft 21 are rotatably supported, respectively, and the second PTO shaft 22 in the front-rear direction is provided to protrude rearward. The gear 29a on the input shaft 29 meshes with the idle gear 33 on the rotary shaft 30, and the clutch gear 34 is slid on the idle gear 33 so that the engagement portion engages with the idle gear 33 so that the input shaft 29 Power can be transmitted to the rotating shaft 30. The clutch gear 34
Are resiliently pressed in the direction in which they engage with the idle gear 33, and constitute a claw-type main clutch.

Between the rotating shaft 30 and the intermediate shaft 31,
A transmission 35 is provided which can be switched between first speed (F ₁ ), second speed (F ₂ ), third speed (F ₃ ), neutral position (N), and reverse (R). A transmission gear 36 and a parking brake (not shown) are provided on the intermediate shaft 31, and the transmission gear 36 meshes with a large gear 37 fixed to the wheel transmission shaft 20. One end of the rotation shaft 30 is provided in the transmission case 19.
An electromagnetic clutch 38 is fixed to the outer end of the transmission case 19, and a cylindrical coupling shaft 39 surrounds the outer end of the rotating shaft 30.
The rotation shaft 30 and the coupling shaft 39 are integrally rotated by the operation of the electromagnetic clutch 38, so that the power for the transplantation system can be branched and extracted.

A gear 40 is fixed to the coupling shaft 39. The gear 40 meshes with an idler gear 41 loosely fitted to the intermediate shaft 31, and the idler gear 41 further engages with a gear 42 on the first PTO shaft 21. The meshing allows transmission of the power of the transplantation system. A bevel pinion 43 is fixed to the first PTO shaft 21, meshes with a bevel gear 44 on the second PTO shaft 22, splits the power for the transplantation system into two systems, and takes out the power from the first PTO shaft 21 and the second PTO shaft 22. It is possible to demagnetize the electromagnetic clutch 38 without stopping the rotation power of the wheel transmission shaft 20 for the first and second P
The rotational power of the TO shafts 21 and 22 can be stopped.
The first PTO shaft 21 is supported by a bearing 47 mounted in the transmission case 19, as shown in FIG.
Is provided.

A rotation pulse sensor 45 is attached to the outer end of the rotation shaft 30 from the electromagnetic clutch 38. As the rotation pulse sensor 45, for example, one having a structure in which the proximity sensor counts the unevenness of the sprocket externally fixed to the rotation shaft 30 can be used. At the rear of the traveling vehicle 12, a transplanting operation unit 50 is provided. This transplant working unit 50
A seedling supply device 51; a planting device 60 (planting unit) for planting soil block seedlings supplied from the seedling supply device 51 in the ridges 14 by a planting cylinder 61 vertically moved by a vertical movement mechanism described below; Film piercing device 8 capable of piercing a transplantation hole in multi-film M in advance at a position where is to be planted.
1 and so on. The seedling supply device 51 includes the second PTO shaft 22.
The planting device 60 and the multi-perforation device 81 are driven by the rotating power of the first PTO shaft 21.

The seedling supply device 51 is mounted on the main frame 15, and transfers the seedling trays 46 in which a large number of pot portions 46a, in which soil block seedlings are raised, are arranged vertically and horizontally, while transferring the seedling trays 46 horizontally and vertically. After taking out the soil block seedlings one by one from the seedling tray 46 with the seedling removal claw 52 at a predetermined seedling removal position with respect to the planting device 60, and transferring the soil block seedlings above the planting device 60, Planting cylinder 6
It is designed to be dropped into one. The seedling tray 46 is made of resin and has flexibility, and is provided with a large number of pots 46a vertically and horizontally protruding from the rear surface, and soil block seedlings are raised in each pot 46a.

A transmission shaft 54 connected to the second PTO shaft 22 is connected to a power receiving shaft 53 of the seedling supply device 51 via a universal joint, and the above-described operation is repeated by the power from the transmission shaft 54. It is. As shown in FIGS. 1 to 5, the planting device 60 and the multi-film punching device 81 are provided with the first PTO of the transmission case 19.
The front end is supported by a shaft 21 (support shaft), and the rear end side is provided on a swing frame 62 which is vertically swingable.
The swing frame 62 is a square pipe-shaped left and right frame 6.
2L, 62R and a connecting frame 62A connecting the left and right frames 62L, 62R.
Left and right frames 62L, 62R, and these frames 62
The frame 62A connecting the rear ends of the L and 62R is integrally formed in a substantially U-shape in plan view by a steel square pipe,
The rigidity of the swing frame 62 is improved.

A bolt 6 is provided at the front end of the right frame 62R.
3. A steel bracket 64 is detachably mounted and fixed by a mounting tool such as a washer 63a. The bracket 64 has a substantially U-shaped cross section, and can be firmly fixed by being externally fitted to the right frame 62R from the outside. A bearing 65 is provided at the front end of the bracket 64 and the front end of the left frame 62L so as to be coaxial.
The first PTO shaft 2 is mounted on the bearing 65 of the left frame 62L.
1 (support shaft) is inserted and supported, and a spline is formed on the outer periphery of the left end of the PTO shaft 21, and a sprocket 75 is removably fitted to the spline portion. Collar 56a attached to
It is detachably retained by a fixing tool such as a locking ring 56b.

Further, the bearing 65 of the right frame 62R is provided.
, The right end of the first PTO shaft 21 is inserted and supported,
It is detachably retained by a fixing tool such as a locking ring 56b attached to the tip of the shaft 21. In this embodiment, the right end of the first PTO shaft 21 is the transmission case 1
Although the swing frame 62 is supported by the shaft 21 so as to protrude outside from the shaft 9, the swing frame 62 may be supported by a fixed support shaft fixed to the transmission case 19 so as to protrude laterally. The sprocket 75 is covered by a chain cover 77 which is detachably fixed to the left frame 62L of the swing frame 62 by bolts 57. Chain cover 7
A cylindrical collar 58 is externally fitted to the shaft of the bolt 57 between the frame 77, the left frame 62L, and the chain cover 77, and the cover 77 is provided at a required interval from the left frame 62L. The collision with the chain 76 and the PTO shaft 21 is prevented.

Accordingly, the chain cover 77 is removed from the swing frame 62 by removing the bolt 57, and the sprocket 75 is removed from the first PTO shaft 2 by removing the locking ring 56b.
1 and the bracket 64 is removed from the right frame 62R of the swing frame 62 by removing the bolt 63, the planting device 60 and the multi-film punching device 81 can be mounted while the vertical movement mechanism is still attached to the swing frame 62. The first swing frame 62 can be easily disassembled without disassembly.
It can be separated from the PTO shaft 21 to the left. In a state where the planting device 60 and the multi-film perforating device 81 are mounted and the operation timing is adjusted by the reverse procedure, the swing frame 62 is attached to the first PTO without disassembling the devices 60 and 81. It can be attached to the shaft 21.

At the rear of the oscillating frame 62, a pressure-reducing / covering roller 66 is operated by switching the lever 55.
2, the rear end of the swing frame 62 is suspended by the main frame 15, and the swing frame 62 can swing vertically following the height of the ridge 14. It has been done. The planting device 60 includes a planting tube 61 that pierces and moves the ridge 14 so as to plant the soil block seedlings supplied from the plant supply device 51 on the ridge 14 at predetermined intervals. And a swing link mechanism 67 that swingably supports the swing mechanism. The swing link mechanism 67 includes a first parallel link 68 whose upper end is pivotally supported by the swing frame 62 so that the lower end can freely swing back and forth. A swing plate is provided at the lower end of the first parallel link 68. 69, and the front end of the second parallel link 70 is pivotally connected to the swinging plate 69.
The planting cylinder 61 is pivotally connected to the rear end. Further, a crank arm 7 provided on a left-right drive shaft 71 provided on the swing frame 62 is provided on the upper link 70a of the second parallel link 70.
The two tips are pivoted.

The drive shaft 72 is rotatably supported by left and right bearings 73 fixed to the swing frame 62. A sprocket 74 is provided at the left end of the drive shaft 72. The sprocket 74 and the first PTO shaft 21
The transmission chain 7 is attached to the sprocket 75 provided at the left end of the
6 is wound and the rotational power of the engine 17 is
To be transmitted to. These sprockets 7
4, 75 and the transmission chain 76 are covered with a chain cover 77. An adjustment roller 78 for adjusting the tension of the chain 76 is provided on the left frame 62R.

Accordingly, the power from the first PTO shaft 21 rotates the crank arm 72 via the drive shaft 71, so that the first and second parallel links 68 and 70 cause the planting cylinder 61 to swing up and down. It also swings back and forth so that the planting tube 61 does not move substantially forward with respect to the field when piercing the planting tube 61 into the ridge 14 while traveling. Moreover, even if the swing frame 62 swings up and down following the height of the ridges 14 as described above, the first PTO shaft 21 for driving the planting device 60 is used as the swing support shaft of the swing frame 62. Since the relative position of the first PTO shaft 21 with respect to the swing frame 62 does not change,
The power transmission system can be simply configured, and the number of constituent members can be reduced as a whole, the structure can be simplified, the maintenance can be improved, and the cost can be reduced.

The planting cylinder 61 is provided with an openable / closable opener at a lower portion. When the opener enters the ridge 14 at the lower end of the locus of the planting cylinder 61, it is opened back and forth by the interlocking tool 79, A transplant hole is formed in the ridge 14, and a soil block seedling can be planted in the transplant hole. The vertical movement mechanism for vertically moving the planting cylinder 61 is mainly composed of the above-described swing link mechanism 67, crank arm 72, drive shaft 71, and interlocking device 79. In addition, a scraper 80 is provided on the rear side of the planting tube 61,
After the planting cylinder 61 is pushed into the ridge 14, the swing link mechanism 6
When the planting cylinder 61 is moved upward, the soil adhering to the outer wall and the inner wall of the planting tube 61 is scraped off.

The multi-film perforating apparatus 81 is shown in FIG.
As shown in FIG. 5, a gas burner type piercing means 82 is provided. The piercing means 82 is connected to the swing frame 62 via a parallel link 83 so as to be vertically movable. In addition, the gas pipe connecting portion 10 for connecting the gas supply pipe is
2 are provided to protrude forward. A cam roller 84 (cam engaging portion) is pivotally attached to the upper link 83a of the parallel link 83. The cam roller 84 is connected to the drive shaft 7.
1. The outer periphery of the disc-shaped cam 85 provided on the roller 1 is rolled, and the planting device 60 and the multi-perforation device 81 are driven by the same drive shaft 71, thereby simplifying the device. We are trying to reduce costs. Further, the cam roller 84 is urged by the own weight of the punching means 82 in a direction of pressing the cam roller 84 against the outer periphery of the cam 85.

A concave portion 86 is formed in a part of the cam 85 in the circumferential direction. When the cam roller 84 falls into the concave portion 86, the punching means 82 is lowered by its own weight as shown by a two-dot chain line in FIG. By moving the heating member 87 provided at the lower end of the perforating means 82 against the multi-film M, a transplant hole is perforated in the multi-film M.
The cam 85 is formed so as to raise the piercing means 82 immediately after piercing the multi-film M, and the other parts except the recessed portion 86 hold the piercing means 82 at the standby position of the ascending limit. In order to make the distance from the axis of the drive shaft 71 substantially constant, the outer periphery is formed in a substantially constant shape.

The cam 85 includes a first cam 88 for holding the piercing means 82 at a standby position (see FIG. 3), and a piercing means 82.
Piercing means 8 for piercing a multi-film in a field by means of
2 is lowered from the standby position (see FIG. 5), and the second cam 89 is raised again to the standby position. That is, the concave portion 86 is formed in the second cam 89, the cam portion of the first cam 88 has a substantially constant outer peripheral shape, and the outer peripheral cam portion of the first cam 88 and the outer peripheral cam portion of the second cam 89 The cam 85 is constituted by the combination. The first cam 88
The thickness of the second cam 89 is made larger than the thickness of the second cam 89, and the member strength is not required as much as that of the second cam 89 while reducing the abrasion of the second cam 89 having the concave portion 86. By using the first cam 88 as a thin plate, the weight of the apparatus is reduced and the cost of members is reduced.

The first cam 88 is fixed to the drive shaft 71, and the second cam 89 is connected to the first cam 88 so as to be able to adjust the relative angle around the axis of the drive shaft 71. Various configurations can be adopted as such a configuration.
Bolt holes (not shown) are provided in the cam 88 at two locations in the circumferential direction, arc-shaped long holes 90 communicating with the bolt holes are provided in the second cam 89, and bolts 91 are provided in these bolt holes and the long holes 90.
And the nut (not shown) is fastened by inserting
The cam 88 and the second cam 89 can be fastened and fixed. When the bolt 91 is slightly loosened, the relative angle between the first cam 88 and the second cam 89 can be adjusted within the range of the elongated hole 90. Has become.

A nut 92 is provided near the drive shaft 71 on the side surface of the second cam 89, and an angle adjusting bolt 93 is screwed to the nut 92. A coil spring 94 for preventing loosening is interposed between the nut 92 and the bolt head of the bolt 93. On the side of the first cam 88,
An engaging portion 95 with which the tip end of the bolt 93 contacts is provided. By slightly loosening the fastening force between the first cam 88 and the second cam 89, the bolt 93 is screwed toward the engaging portion 95. Fine adjustment of the relative angle between the first cam 88 and the second cam 89 can be easily performed.

The engaging portion 95 of the first cam 88 is disengaged from the engaging portion 95 even when the position of the tip of the bolt 93 with respect to the first cam 88 is slightly shifted by screwing the bolt 93. It is formed in a long shape in a direction orthogonal to the axis of the bolt 93 so as not to be present. The swing frame 62 is provided with an upper limit detection proximity switch 101 for detecting that the transplanting cylinder 61 is at the top dead center of the trajectory. The switch 10
Reference numeral 1 denotes a switch mounted on the left bearing 73 for supporting the drive shaft 71 when the crank arm 72 reaches the upper limit position, and switches the electromagnetic clutch 38 from on (connected) to off (disconnected). , Traveling vehicle 1
The planting interval of the soil block seedlings is controlled by temporarily stopping the driving of the transplanting work unit 50 without stopping the running of the second. Then, when the rotation pulse sensor 45 detects a preset number of pulses, the electromagnetic clutch 38 is switched from off to on, and the operation of the transplanting work unit 50 is resumed, so that the planting interval of the seedlings can be adjusted. I have.

When the electromagnetic clutch 38 is demagnetized and the driving of the drive shaft 71 is stopped, regardless of the magnitude of the inertia of the planting tube 61 or the like, the swinging frame 62 moves the planting tube 61 in the middle of the trajectory. A stopper 96 (brake arm) with which the first cam 88 can be engaged to brake at a fixed position is provided near the cam 85 so as to be able to swing up and down around a horizontal axis. The stopper 96 is urged by a coil spring 97 so as to swing upward. The stopper 96 comes into contact with a regulating body 98 fixed to the swing frame 62, so that the upward swing is regulated at a predetermined position. An engagement recess 100 is provided at an upper portion of the stopper 96 so as to be fitted with a brake roller 99 provided near a peripheral edge of the side surface of the first cam 88.

Accordingly, when the electromagnetic clutch 38 is demagnetized, the cam 85 slightly rotates due to the inertia of each operating part of the transplanting working part 50, and the brake roller 99 of the first cam 88 is stopped against the urging force of the spring 97. When the roller 99 is pushed down, the roller 99
(See FIG. 3), the movement of the transplanting cylinder 61 is stopped, so that the transplanting cylinder 61 is always fixed at a certain position in the middle of the trajectory.
Can be stopped, and the operation stability is improved. According to the above embodiment, in order to attach the planting device 60 and the multi-film punching device 81 to the traveling vehicle 12, first, the planting device 6 is attached to the swing frame 62 separated from the traveling vehicle 12.
After adjusting the operation timing between each component such as the work of adjusting the vertical movement mechanism of the planting device 60 by assembling the zero and multi-film punching device 81, the frame 62 is attached to the traveling vehicle 12. In addition, while improving the maintainability of the planting device 60 and the multi-perforation device 81, they can be integrally attached to and detached from the traveling vehicle 12 without disassembling them. Can be planned.

The planting device 60 and the multi-perforation device 81
Is driven by the same drive shaft 71 to simplify the apparatus, while allowing the second cam 89 having the recess 86 to be freely adjustable in relative angle to the first cam 88 fixed to the drive shaft 71. Because of the connection, the fine adjustment of the operation timing of the vertical movement of the planting cylinder 61 and the vertical movement of the perforating means 82 can be easily performed. In addition, while stabilizing the operation by braking the planting cylinder 61 at a fixed position, by performing such braking with the cam 85, the number of constituent members can be reduced and the apparatus can be simplified.

The present invention is not limited to the above-described embodiment, and can be modified as appropriate. For example, the bracket 64 can be detachably attached to the front end of the left frame 62L. In the above embodiment, the present invention is applied to a walking type transplanter, but may be applied to a riding type transplanter. Further, the present invention can be applied to a multi-row transplanter. The seedling supply device may be of a rotary table type, a conveyor type, a rod extruding type, or the like, in addition to the above-described embodiment.

[0034]

According to the present invention, by removing the bracket from the swing frame can be detached from the integrally vehicles the swing frame in conjunction with the planting apparatus without disassembling the vertical movement mechanism, Maintenance can be facilitated, and the improvement in the maintainability facilitates highly accurate adjustment work.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing the entire structure of an implanting device of a transplanter according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view showing a main part of the embodiment.

FIG. 3 is an overall schematic side view of the planting device.

FIG. 4 is an overall schematic plan view of the planting device.

FIG. 5 is an enlarged side view of a main part of the multi-film punching device.

FIG. 6 is an overall schematic side view of the transplanter.

FIG. 7 is a system diagram of power transmission.

[Explanation of symbols]

 Reference Signs List 11 vegetable transplanter 12 traveling vehicle 14 ridge 21 PTO shaft 60 planting device 61 planting cylinder 62 swing frame 64 bracket

Claims (2)

(57) [Claims] A traveling vehicle (12) provided with a left and right projection.
The swinging shaft (21) swings freely around its axis.
Arm (62) is supported, and the swing frame (62)
A planting device (60) for planting seedlings in a field (14) by a planting cylinder (61) vertically moved by a vertical movement mechanism is provided.
A structure of an implanting portion of a mounted transplanter, wherein a bracket (64) is attached to the swing frame (62).
Removably attached and fixed, the support shaft (21) is a bracket
(64) and supported by the bracket (64).
By removing from the swing frame (62).
State in which the lower movement mechanism is assembled to the swing frame (62)
To release the swing frame (62) from the traveling vehicle (12).
An implanting part structure for an implanting machine, wherein the implanting part structure is configured to be possible . 2. A swing frame which is swingable up and down through a support shaft (21) provided on the traveling vehicle (12) so as to protrude left and right.
(62) is attached, and the swing frame (62)
A planting device (60) for planting seedlings at the place (14) is installed.
And the swing frame (62) is one of the left and right ends of the front part.
Is pivotally supported by the support shaft (21), and the support shafts (2
Bracket (64) pivotally supported in 1) is provided detachably.
And the support shaft (21) is separated from the traveling vehicle (12).
Planting unit structure transplanter according to claim PTO Jikudea Rukoto for transmitting power to the planting device (60).