JPH09205815A - Seedling transplanting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate deformation and straining of a rotary shaft and mount a cylinder, etc., as a cover member so that a small gap is left as to a device constituted by mounting a rotary device on a sulky rice transplanter. SOLUTION: On the machine frame side of a seedling transplanting device, a driving shaft 45 which digs or puddles and level a field surface is projected to both the right and left sides across an elevation adjusting means. A power transmission case 35 is mounted. Then the driving shaft 45 which projects to both the right and left sides is detachably fitted with a shaft equipped with digging claws 49 digging a position in the front of the seedling transplanting position by a transplanting tool to a specific depth when a seedling is transplanted to an untilled field or a shaft where a puddling rotor puddling the entire area in front of the seedling transplanting position is fitted when a seedling is transplanted to a tilled but unpuddled field. Further, the right-left projection-directional intermediate part of a shaft which is coupled with the driving shaft 45 and driven rotate is supported halfway rotatably on a frame body 46 which is fitted to the power transmission case 35 and extends to the right and left sides through a support member 55 which is small in its right-left width.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention excavates the surface soil surface directly without excavating the surface soil surface in advance and transplants seedlings.
The present invention relates to a seedling transplanting device for no-tillage transplantation or simultaneous transplantation with scraping, which is carried out at the same time when the seedlings are transplanted without being scraped after plowing the surface soil surface of the field.

[0002]

2. Description of the Related Art Conventionally, there has been a rice transplanter disclosed in Japanese Patent Laid-Open No. 4-66017. In the planting device of this rice transplanter, rotary wheels for excavating the front of the seedling transplantation position in the field are attached to the drive shafts protruding to the left and right sides of the transmission case, and the left and right ends of the drive shaft are supported. Metal is attached from the machine frame side of the rice transplanter via a link so that vertical swinging can be adjusted, and a transmission case is attached via a drive shaft.

[0003]

In the conventional device, the drive shaft for mounting the excavating rotary wheel projecting to the left and right sides of the transmission case is extended to the left and right sides integrally with the transmission case side to extend the drive shaft. The metal that is attached to the rice transplanter side is rotatably supported so that the drive shaft cannot be attached or removed practically, and a scraping rotor is provided on both the left and right sides of the transmission case. It was impossible to install in place of. Also,
The left and right sides of the transmission case are always fitted with drive shafts that project outward long, making it difficult to remove the transmission case during rice planting work in ordinary paddy fields. In addition, since the disassembled transmission case has a long drive shaft mounted in a free state where the tip side is not supported, the drive shaft is apt to be distorted or deformed, so that the drive shaft may not be supported when it is stored. I had to be very careful not to get shocked.

[0004]

The present invention takes the following technical means in order to solve the above-mentioned problems. That is, the hydraulic lifting connection mechanism 22 is provided at the rear of the riding type traveling vehicle body 1.
The seedling transplanting device 27 is attached via the
Is provided with transplanters 30 at a predetermined interval in the left-right direction, and a sled body 31 for leveling a field scene is vertically movable at a position in front of the seedling transplanting position 27 by each of the transplanters 30. Due to the vertical movement of the sled body 31, the hydraulic device 2
In the riding type seedling transplanting device configured to automatically control the field scene pressure of the sled body 31 to fall within a predetermined range by switching the switching valve 63 of No. 6, the rear wheel 10 of the traveling vehicle body 1 is viewed from the side. If the drive shaft 45 for excavating or scrubbing the field scene is projected to the left and right sides through the vertical adjustment means on the machine frame side of the seedling transplanting device 27 between the rear side and the front side of the seedling transplanting device 27. In the case of mounting a tight transmission case 35 and transplanting seedlings to the drive shaft 45 protruding to the left and right sides in an uncultivated field, the front position of the seedling transplantation position by the transplanter 30 is excavated to a predetermined depth. In the case of transplanting the shaft 48 with the excavating claw 49 to the seedlings in the field that has not been scraped by the existing tillage, the shafts 81 and 86 for mounting the scraping rotor 84 for scraping the entire area on the front side of the seedling transplantation position are used. It is detachably installed, and is connected to the drive shaft 45 and driven to rotate. That the right and left projecting direction intermediate portion of the shaft, the transmission Ke - frame 46 extending in the lateral side mounted to scan 35
In addition, the seedling transplanting device is characterized in that it is rotatably supported midway through a support member 55 having a thin right and left width.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the present invention will be described in detail with reference to the drawings. Reference numeral 1 denotes a traveling vehicle body, which has an engine 3 mounted at an intermediate portion in the front and rear of a frame 2, a mission case 4 attached to a front end side thereof, and a rear end side around a shaft 5 in the front-rear direction at a left and right center portion. A rotatable lateral frame 6 is provided, and rear wheel transmission cases 7a and 7b are fixed to the left and right sides of the frame, respectively.
An integral front axle case is formed on the lower front side of the vehicle so as to project to the left and right, and front wheel transmission cases 8a and 8b for steering the front wheels are provided at the outer ends of the axle case. Front wheels 9a, 9b are mounted on the outer side of the case via a drive shaft, and rear wheels 10a, 10b are mounted on the outer side of the rear wheel transmission cases 7a, 7b via a drive shaft to form a traveling vehicle frame structure. A boarding platform 11 is stretched over the vehicle frame, and a steering post 1 is provided with a steering post at the front position.
2 is provided, the steering handle 13 is axially mounted on the upper portion, and the steering seat 15 is provided on the upper portion of the engine cover 14 that covers the upper portion and the side peripheral surface of the engine 3. That is, the left and right rear wheels 10a, 10b of the traveling vehicle body 1
Is provided so that it can swing to the left and right, and is provided so as to have good followability in a field scene. Therefore, the power transmission to the rear wheel transmission cases 7a and 7b is divided into a pair of PTOs, which are divided into right and left parts at the rear portion of the transmission case 4 side.
The shafts 16a and 16b are configured to be driven via transmission shafts 17a and 17b having universal joints. 18 is a PTO shaft that drives the transplantation device side, which will be described later, 19
Is a PTO shaft for driving a rotary working unit for excavating or leveling the topsoil of the field. The PTO shaft 19 is output from a transmission case 20 that is transmitted from a counter shaft of a belt transmission mechanism that drives the transmission side from the engine 3, and is projected rearward through a transmission transmission case 21.

Reference numeral 22 denotes an elevating mechanism, which is a frame of the traveling vehicle body.
The rear portion of the upper and lower link rods 24a and 24b pivotally attached to the base side of the column 23 that is erected at the rear of the frame 2 is pivotally connected by the connecting frame 24c, and a hitch means for connecting the working machine to the connecting frame 24c is configured. doing. That is, the connecting frame 24c is provided with a concave portion for receiving a support pin provided on the working machine side and a locking claw. Then, a hydraulic device 2 in which a lever 25 integrally fixed to the lifting link rod side is attached to the traveling vehicle body 1 side
When the piston rod is connected to the piston rod 26b of No. 6, the link rod is swung up and the connecting frame 24c for connecting the working machine is operated upward. 26a is a hydraulic cylinder.

Reference numeral 27 is a seedling transplanting device, which is provided with a seedling placing table 29 capable of placing a plurality of mat-shaped seedlings with soil on the left and right in a transplanting transmission case 28 also serving as a frame, which is reciprocally movable left and right. A seedling transplanter 30 attached via a rotating case is attached to the case on the rear side, and the seedlings mounted on the seedling placing table 29 and fed out are separated one by one and transplanted to a field scene. On the lower side of the transplant transmission case 28, a plurality of sleds 31 are provided side by side in contact with the surface of the field to slide. The sled members 31 are attached to the transplant transmission case 28 side so that the front portion of the sled members 31 can freely move up and down.

The front portion of the transplant transmission case 28 of the thus constructed seedling transplanting device 27 is attached to the hitch frame body 32 so as to be freely rotatable around the longitudinal axis.
The hitch frame 3 is provided with connecting pins 33 and 34.
2 is connected to the connecting frame 24c of the lifting mechanism 22. In this way, the seedling transplanting device 27 is configured to be lifted and lowered at the rear portion of the traveling vehicle body 1.

Reference numeral 35 denotes a transmission case for driving a rotary device R for excavating or leveling the topsoil of a field, which is vertically long and has the PTO shaft 1 on the upper side.
9, an input shaft 37, which is transmitted via a transmission shaft 36 having a universal joint, protrudes forward from the upper side of the case 35, and a pair of bevel gears 3 are formed in the upper portion of the case 35.
8 and 39 and the spur gears 40 and 41 for low speed shifting rotate the drive side sprocket 42, and the driven sprocket 43 on the lower side is configured to be transmitted through the chain 44, and the driven sprocket 43 is attached. The drive shaft 45 is made to project to the left and right sides of the transmission case 35, and the projecting drive shaft end is formed in a square shaft or spline shape.

Reference numeral 46 denotes a frame body in which the left and right intermediate portions are fixed to the transmission case 35, which is a cylindrical shaft in the illustrated example and extends long to the left and right sides. As an example of a working member equipped on the transmission case 35, first, excavation is performed to excavate a position in front of the seedling transplanting position by the seedling transplanting device 30 to a predetermined depth when transplanting seedlings to an uncultivated field. An example of the rotary device R equipped with pawls will be described. A rotary shaft 48 is connected to the drive shaft 45 protruding to the left and right sides via a female joint shaft 47. A holder-projecting plate 50 for fixing the excavation claw 49 is attached to the rotary shaft 48 in the form of being shifted by 90 degrees around the axis in the case of the illustrated example.
The excavation claw is bolted to 0. Reference numeral 51 denotes a ring body with saw teeth for preventing weeds, straw, and the like from winding, and is fixed to the inner end of the female joint shaft 47 and is rotated close to the left and right outer side surfaces of the transmission case 35. Is configured to.

Reference numeral 52 denotes a cylindrical body for preventing weeds, straw, and the like from being wrapped around, and is located between each of the excavating claws 49 so that the rotary shaft 48 is covered. .
Further, these cylindrical bodies 52 can be freely rotated by receiving an inner surface portion of an outer end by a collar member 50b integrated with a holder 50a for fixing the excavating claw. 53 is a holder, which is fixed to the inner peripheral surface side of the cylindrical body 52,
An outer peripheral surface of the rotary shaft 48 is formed of a donut type plate body that is rotatably fitted, and the cylindrical body 52 is held so as to be rotatable around the shaft 48.

Reference numeral 54 denotes a bearing for bearing the rotary shaft 48, which is fitted in the left and right intermediate portions of the shaft 48, and supports the bearing 54 from the frame 46 through a thin plate 55. Reference numeral 56 denotes a bracket fixed to the frame body 46, and a plate body 55 attached to a bearing 54 as the bearing member is connected by a bolt 57. The thin plate member 55 is arranged between the left and right cylinders 52 and the clearance t between the cylinders 52, so that weeds, straw and the like do not get caught in the shaft 48 and are not wound. ing.

An example of a rotary device mounted on the transmission case 35 will be described in detail with reference to the drawings. Brackets 58 for fixing the frame 46 to the left and right side surfaces of the transmission case 35 are provided. The case 35 is fixed in such a manner as to surround the case 35 and the bracket 58 and the transplant transmission case 28.
And a link mechanism 59 are connected to each other so that the transmission case 35 can move up and down with respect to the transplantation transmission case 28. Then, the link mechanism 59 is provided in the groove (a) of the regulating plate 61 having the guide groove (a) formed with the notch for lifting control attached to the frame 60 integrated with the transplantation transmission case 28. Lifting lever lever 62 connected to the link rod
It is configured such that the transmission case 35 side can be adjusted up and down by inserting.

In the above embodiment, the transmission case 35 having a rotary shaft is connected to the transplantation transmission case 28 side by a link mechanism 59 and is manually operated by the operating lever 62. Although the case 35 is adjusted up and down, the case 35 may be automatically controlled. The automatic control circuit mechanism in this case will be described with reference to FIG. The raising / lowering control on the side of the seedling transplanting device 27 is carried out by controlling the switching valve 63 of the hydraulic cylinder device 26 for operating the raising / lowering mechanism 22 with the signal of the sensor-64 for detecting the fluctuation of the ground pressure of the sled 31 for grounding.
A command signal that is input to U and causes the piston 26b to project when the ground pressure deviates from a certain range appropriate for the transplantation action and becomes high is sent from the control unit to switch the electromagnetic switching valve 63 to raise the seedling transplanting device 27. Conversely, when the ground pressure deviates from a certain range suitable for transplantation and becomes low, a command signal for retracting the piston 26b is transmitted from the control unit to switch the electromagnetic switching valve 63 to lower the seedling transplanting device 27. It has become. Therefore, the ground pressure of the sled body 31 is automatically controlled within a certain range suitable for transplantation, and the transplantation depth is maintained within the allowable range.

On the other hand, the transmission case 35 of the rotary device R for locally cultivating the seedling transplantation position in the field scene with a constant width on the left and right.
The part is a lever 6 integrated with the link rod of the link mechanism 59.
5 is operated by a hydraulic cylinder device 66 to be moved up and down. The hydraulic switching valve 67 of the cylinder device 66 is of an electromagnetic switching type, and the hardness of the soil surface of the field, soil quality or weeds,
A field condition detector 68 for detecting a scattered condition such as straw
The detection result signal of the switching valve 67 is input to the control unit CPU, and the switching valve 67 is output by the output signal by the comparison calculation with the reference value in the standard state.
To control the operation of the hydraulic cylinder device 66 to control the plowing depth suitable for the field condition. In general, this control is mainly performed by a hard / soft sensor that detects the hardness of a field scene, and when the hardness is hard, the excavation claw 49 is controlled so as to cultivate deeply. As another example, a detector 68a is attached to the transmission case 35 side as shown in FIG. 12 to control by changing the ground pressure at the tilling position so that the tilling depth is always kept within a certain range. It may be.

In the figure, reference numeral 69 is a hydraulic pump, 70 is a flow dividing valve, and 71 is a hydraulic tank. In addition, without using the shunt valve 70, the oil return circuit side to the tank side when the switching valve 63 is in the neutral position is connected to the input path of the switching valve 67, and the elevation control on the seedling transplanting device 27 side is preferentially controlled. It may be configured as follows. When the rotary device is constructed so that it can be moved up and down by the link mechanism 59 from the seedling transplanting device 27 side, the transmission case 35 of the link mechanism 59 and the rotary device R.
A rotary shaft 72 in the front-rear direction is interposed between the rotary device R and the rotary device R so that the rotary device R can freely rotate at the center of the left and right, and the rotary device R is always returned to the left-right horizontal state. As described above, the pulling springs 73a and 73b are used for biasing. Moreover, a gear 74 is attached to the rolling shaft 72 to which the rotary device R is attached, and a pinion gear 75 meshing with the gear 74 is driven by a forward / reverse motor 76 via a friction brake 77. However, the rotary device R is configured to be able to perform rolling control against the restoring force of the spring 73. Then, the detection signal from the horizontal detector 77 for detecting the horizontal state provided on the transmission case 35 side is introduced into the control unit CPU, and the motor 76 is normally or reversely rotated by the command signal transmitted from this control unit. Forcibly
Rings are controlled so that the plowing depths on the left and right sides are almost constant. The frictional brake 77 can be adjusted in its braking force as appropriate, and can be adjusted and set in accordance with the condition of the field such as hardness and softness. The horizontal detector is a transmission case 35.
The vertical movement amounts of the grounding bodies 78a, 78b, which are attached to the left and right symmetrical positions of the frame body 46 protruding to the left and right sides and follow the field scene, are detected by the potentiometers 79a, 79b, and this is calculated by the comparison operation circuit 80. The signal calculated in step S4 is input to the control unit CPU, and further calculated from this calculated value and the standard value stored in advance in the control unit to generate an output command signal.
The field surface reference control may be performed by controlling the controller 76.

When performing transplanting work in a paddy field, the rotary device R cannot perform proper transplanting work unless the entire surface of the field is leveled. In particular, recently, after plowing the field,
There is a case where so-called non-substitution scratch transplanting work is performed in which transplanting work is performed without scratching work. At this time, the seedling transplanting device 27 side may be equipped with a scraping rotary device S to simultaneously perform a simple scraping work at the time of transplanting. The substitute rotary device S is constructed by utilizing the main constituent parts of the rotary device R.

Explaining this embodiment, a spline fitting connection boss 82 having a cylindrical shaft 81 fixed to a driving shaft 45 protruding to the left and right sides of the transmission case 35 is attached through a pin 83 so as not to come off. The inner side scraping rotor 8 is attached to the boss 82 side.
4a is attached. The cylindrical shaft 81 is provided on the frame 46.
Bearings 85 supported by the bracket 56 and the plate 55.

Reference numeral 84b is an outside scraping rotor, which is the cylindrical shaft 81.
It is attached via a flange to the shaft 86 inserted in
The pin 87 is configured to integrally rotate the cylindrical shaft 81 and the shaft 86. The scraper rotor 84 has a construction in which a scrape tooth 90 having an outer edge formed in a wavy shape is attached to a horizontal crosspiece 89 provided on a disc 88 connected to a shaft. Explaining the operation of the above example, during the work by the seedling transplanting device 27, in the case of a dry field, the width of the left and right sides is narrow so that the transplant can be surely performed at the front side of the transplant position at the same time when the transplant operation is performed by the transplant tool 30. The groove is excavated by the excavation claw 49, and seedlings are transplanted into this groove. In addition, at the time of rice transplanting work in a paddy field, the rotary rotary device S is used as a substitute for the rotary rotary device R.
By changing to the form, it is labor-saving to be able to transplant while scratching even in a field that has not been scratched just by plowing the field.

In any work, the rotary transmission shaft 4 is connected to the drive shaft 45 and extends laterally in the left-right direction.
The plates 8 and 81 are narrower in the left and right direction from a frame 46 that is attached to the transmission case 35 side and extends in the left and right lateral directions in the middle thereof.
Since the shafts 48 and 81 for the rotary transmission are firmly held because they are borne by the shaft 5, the rotary shaft is surely rotated without deformation or distortion. Moreover, the shafts 48, 81
In the case where the shaft is covered with a cylinder 52 so that weeds and straw debris do not wrap around the outer periphery of the bearing, the bearing 5 for the bearing is used.
Plate 5 for fixing 4 (may be just metal)
Since 5 is thin on the left and right, the gap t between the left and right cylindrical bodies 52, 52 can be narrowed.

In the above-mentioned dry-field field, when rice is planted in the field as it is after harvesting rice without cultivating work, that is, in the case of no-tillage rice field, when the field is driven by a truck-type traveling unit, the rear wheel Becomes a recessed groove. For this reason, a device for refilling the groove portion is required in a state where the transplanting operation cannot be performed. In addition, when the ditch is formed, the puffy soil structure formed by the rice root during rice cultivation is destroyed, and the soil heat retaining ability in the cold region is lost, which may cause cultivation trouble. Therefore, in the no-till rice planting work, it is required to prevent damage to the rear of the wheels of the traveling device as much as possible.
Therefore, the rear wheels 10 of the traveling vehicle body 1 are provided in order to provide traction force.
Is a wheel with a lug, and the low-pressure wheel 92 is mounted on the outer side of the lug 91. A concrete example will be described with reference to FIGS. 14 and 15. A low-pressure wheel 92 is provided outside the rear wheel 10 of the traveling vehicle body 1 on which the seedling transplanting device 27 is mounted at the rear portion.
It is fixed to a boss portion 93 of a rear wheel which is a paddy wheel by a connecting body 94. Reference numeral 95 denotes a spoke of the rear wheel 10. A rim 96 with a loop of an iron pipe at the end of this spoke 95.
The rim 96 and the tip side of the spoke 95 are molded with rubber, and the propulsion lugs 97 are formed on this rubber body at predetermined intervals on the circumference to form a paddy wheel. This is attached as a rear wheel of the traveling vehicle body 1.

The low pressure wheel 92 is a chewless tire 99.
The wheel rim 98 is fitted and fixed to the outer periphery of the wheel rim 98, and the inside of the wheel rim 98 is filled with air to form a wheel. The wheel is commonly known as a wheelus wheel. -It is a wheel that is attached to etc. so as not to damage the lawn while traveling. The characteristic of this wheel is that the tire is thicker toward the ground contact surface and thinner so that the side surface is likely to swell. This low-pressure wheel 92 is connected to the rear wheel 1
Although the outer diameter of the low-pressure wheel 92 is larger than the outer diameter of the rear wheel 10 at the time of not contacting the ground as shown in FIG. It is configured to have the same diameter by bulging to the left and right. At this time, the propulsion lug 97 of the rear wheel 10 for paddy fields pushes and deforms the tire 99 of the low-pressure wheel to deform the lug 9.
7 and the tire 99 are in close contact with each other.

When the field scene is propelled in this state, the paddy field wheel 10 partly digs into the field scene to give a propulsion force, but the low-pressure wheel 92 exerts a buoyant force so that the wheel 10 does not plunge into the ground indiscriminately. It is promoted without damaging the topsoil. Therefore, the synergistic effect of the rear wheel 10 as the paddy wheel and the low-pressure wheel 92 is exerted, the damage in the field is reduced and a reliable propulsion force is exerted, and the low pressure is exerted on the outer circumference of the rim 96 of the rear wheel 10. Since the lateral outer end of the tire 99 approaches and the lug 97 itself and the tire 99 are pressure-bonded to each other at the lug 97 portion, straw debris and weeds scattered on the field surface do not adhere to the rug 97, and muddy soil is hardly scraped up. And ideal propulsion is obtained.

When traveling on the road, the low pressure wheel 92 may be reduced in air pressure to be deformed into a small diameter wheel so that the outer diameter of the low pressure wheel 92 is smaller than the outer diameter of the rear wheel 10. Since the low-pressure wheel 92 has a thin tire thickness on the lateral side of the tire 98, it has a drawback that it is largely deformed to the lateral side due to lateral vibration during turning, but this is solved. As a means, as shown in FIG. 16, a regulation plate 100 integrally attached to the rim 98 of the wheel is attached to the left and right side surfaces of the tire 99 with predetermined gaps k so that the tire 99 expands under pressure. It is advisable to configure so that it can be regulated.

[0025]

According to the present invention, the rotary transmission shaft, which is connected to the drive shaft and extends in the left and right lateral directions, has a middle portion thereof attached to the transmission case side in the left and right lateral directions. Since it is supported from the frame body extending to the right and left through the narrow plate body, the shaft for the rotary transmission is firmly held and deformation and distortion do not occur, and reliable rotary rotation is performed. Be seen. Moreover, when covering the shaft with a cylinder so that weeds and straw debris do not wrap around the shaft, the plate for fixing the bearing part is thin on the left and right, so that the gap between the left and right cylinders is small. Can be narrowed.

[Brief description of drawings]

FIG. 1 is a side sectional view

FIG. 2 is a plan view of a main part.

FIG. 3 is a plan view of a main part.

FIG. 4 is a back cross-sectional view of the main part

FIG. 5 is a back cross-sectional view of the main part

FIG. 6 is a side sectional view of a main part.

FIG. 7 is a control circuit diagram.

FIG. 8 is a plan view of a main part.

FIG. 9 is a control circuit diagram of another example.

FIG. 10 is a side view of a main part of another example.

FIG. 11 is a perspective view of the main part

FIG. 12 is a side view of a main part of another example.

FIG. 13 is a perspective view of a main part of another example.

FIG. 14 is a back cross-sectional view of the main part of another example.

FIG. 15 is an enlarged back cross-sectional view of the main part of FIG.

FIG. 16 is a back cross-sectional view of the main part of another example.

[Explanation of symbols]

 1 Traveling Vehicle 10 Rear Wheel 22 Lifting Mechanism 26 Hydraulic Device 27 Seedling Transplanting Device 30 Transplanter 31 Sliding Body 35 Transmission Case 45 Drive Shaft 46 Frame Body 48 Shaft 49 Excavation Claw 55 Supporting Member 63 Switching Valve 81 Shaft 84 -Ta 86 axis

Claims (1)

[Claims] 1. A seedling transplanting device 27 is attached to a rear portion of a riding type traveling vehicle body 1 via a hydraulic lifting mechanism 22. The seedling transplanting device 27 is provided with transplanters 30 at predetermined intervals in the left-right direction. Seedling transplant position 27 by each of the transplant tools 30
A sled body 31 for leveling the field scene is configured to be movable up and down in the front position of the sled body 31. Due to the vertical movement of the sled body 31, the switching valve 63 of the hydraulic device 26 is switched to switch the sled body 31. In a riding type seedling transplanting device configured to automatically control the field scene pressure within a predetermined range, a rear side portion of the rear wheel 10 of the traveling vehicle body 1 and a front side portion of the seedling transplanting device 27 in a side view. In the meantime, a transmission case 35 is mounted on the machine frame side of the seedling transplanting device 27 through a vertical adjusting means so that a drive shaft 45 for excavating or scrubbing the field scene is projected to the left and right sides. In the case of transplanting seedlings to an uncultivated field on the drive shaft 45 protruding to the left and right, a shaft 48 having an excavating claw 49 for excavating a position in front of the seedling transplanting position by the transplanter 30 to a predetermined depth.
In the case of transplanting seedlings to a field that has not yet been scraped with already cultivated soil, a scraping rotor 84 for scraping the entire area on the front side of the seedling transplanting position.
The shafts 81 and 86 for attaching the shafts are detachably provided, and the left and right protruding direction intermediate portions of the shafts that are rotationally driven by being connected to the drive shaft 45 are attached to the transmission case 35 and extend to the left and right sides. A seedling transplantation device characterized in that it is rotatably supported midway through a support member 55 having a thin left and right width.