JP2012135272A5 - - Google Patents

Description

Seedling transplanter

The present invention belongs to the technical field of a seedling transplanter that transplants vine-like seedlings such as sweet potato seedlings in a fallen posture.

  While advancing the aircraft with the traveling aircraft, the sandwiched seedlings are plunged into the soil in a posture in the front-rear direction, and after moving in the front-rear direction in the soil, the clamping of the seedlings is released, and in a state where the clamping is released upward There is known a seedling transplanter configured to plant seedlings in a posture in the front-rear direction (lateral posture) by a seedling planting clamp that moves and exits from the soil. This seedling transplanter can plant seedlings so that the vine portion is long buried in the soil by releasing the sandwiching of the seedlings after the seedling planting clamp moves in the soil in the front-rear direction ( (See Patent Document 1).

JP 2004-113077 A

  The above-mentioned seedling transplanting machine can plant a vine-like seedling such as a sweet potato seedling so that the vine part is buried long before and after in the soil, and transplanting a vine-like seedling such as a sweet potato seedling Can be done with a machine, and the workability has been greatly improved compared to conventional hand-planting work. However, the seedling transplanting machine described above is a walking type seedling transplanting machine, and an operator must perform seedling transplanting work while walking in the field, and it is necessary to further improve workability.

Then, this invention makes it a subject to obtain the riding type seedling transplanter of the simple structure which workability | operativity improves. Another object is to properly water the seedlings planted in the field.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the first aspect of the present invention, the seedling conveyor unit (5) and該苗conveying section the planted seedlings planting body in the field is taken out the transported seedlings at (5) (6) to the vehicle body (4) In the seedling transplanting machine provided with a pair of seedling planting clamps (31) for sandwiching seedlings in the seedling planting body (6), a discharge opening for discharging water to the inside of the pair of seedling planting clamps (31) A seedling transplanting machine characterized in that a part (142) was provided.

Therefore, according to the invention described in claim 1, it is possible to appropriately water the seedlings planted in the field .

The invention described in claim 2 is characterized in that a cavity is provided inside the seedling planting clamp (31), and water is discharged from the discharge opening (142) through the cavity. A seedling transplanter according to claim 1 is provided.

Therefore, according to the invention described in claim 2, in addition to the action of the invention described in claim 1, water to be fed can be discharged from the discharge opening 142 through the cavity .

The invention according to claim 3 is provided with a left and right traveling device (7) for advancing the traveling machine body (4), and a steering handle (18/19) provided with various operating tools (18, 19) at the front and rear end portions of the traveling machine body (4). 2), a seat (120) on which an operator is seated facing the seedling transport section (5) is provided on the left and right sides of the steering handle (2) on the left and right sides of the aircraft, and the left and right sides of the aircraft The auxiliary traveling device (123L) supporting the seat (120) on one side is provided at a rear position of at least one of the left and right traveling devices (7). A seedling transplanter according to claim 2 is provided.

Therefore, according to the invention described in claim 3, in addition to the operation of the invention described in claim 1 or 2, the seat 120 on which the operator is seated is provided on the left and right sides of the body opposite the seedling transport section 5. Therefore, the operator can easily perform the operation of sitting on the seat 120 at a position facing the seedling transport unit 5 and supplying the seedling N to the seedling transport unit 5. Further, since the auxiliary traveling device 123L that supports the seat 120 is provided at a rear position of at least one of the left and right traveling devices 7, the weight of the operator who is seated on the seat 120 is supported by the auxiliary traveling device 123L. In addition, it is possible to prevent the weight of the operator seated on the seat 120 from affecting the left and right posture of the machine body, and a good seedling transplanting operation can be performed. Therefore, it is possible to obtain a riding seedling transplanter having a simple configuration with excellent workability and excellent seedling planting performance. In addition, the operator who is seated on the seat 120 can easily perform the work of supplying the seedling N to the seedling transporting unit 5 and operates the various operating tools 18 and 19 on the steering handle 2 while keeping the sitting posture. It is safe and workable .

The invention according to claim 4 is provided with a left and right transmission case (10) for transmitting rotational driving force to each of the left and right traveling devices (7) , and the left and right transmission cases (10) are provided with left and right auxiliary transmission cases (121L and 121R). ) And the left and right auxiliary transmission cases (121L and 121R) , respectively, and the left and right auxiliary traveling devices (123L and 123R) are attached to the left and right auxiliary transmission cases ( 10) and the left and right auxiliary transmission cases (121L). The seedling transplanter according to claim 3, wherein a rotational driving force is transmitted to the left and right auxiliary traveling devices (123L and 123R ) at 121R) .

Therefore, according to the invention described in claim 4, in addition to the action of the invention described in claim 3, the left and right auxiliary traveling devices 123L and 123R move up and down appropriately following the ground, and the left and right traveling devices 7 and the left and right auxiliary traveling devices. The device 123L and 123R are properly driven and the auxiliary traveling device 123L is driven and rotated even when the load of the operator seated on the seat 120 is applied to the auxiliary traveling device 123L. You can go straight to the transplanting work.

According to the fifth aspect of the present invention, the left and right irrigation stores water for irrigating the seedlings planted in the left and right auxiliary transmission cases (121L and 121R) between the left and right traveling devices (7) and the left and right auxiliary traveling devices (123L and 123R). The seedling transplanting machine according to claim 4 , wherein tanks (129 </ b> L and 129 </ b> R) are respectively mounted.

  Therefore, according to the invention described in claim 5, in addition to the operation of the invention described in claim 4, the left and right irrigation tanks 129L and 129R are respectively disposed between the left and right traveling devices 7 and the left and right auxiliary traveling devices 123L and 123R. The left and right traveling devices 7 and the left and right auxiliary traveling devices 123L and 123R are supported in a well-balanced manner, and even if the amount of water in the left and right irrigation tanks 129L and 129R varies due to irrigation to the planted seedlings, Even if the amount of water in the tanks 129L and 129R is different between right and left, there is little influence of load fluctuations on the aircraft, and the aircraft can exhibit good running performance and perform appropriate seedling transplanting work.

According to a sixth aspect of the invention, it was seedling transplantation machine as set forth in any one of claims 5 seedlings container laterally that was provided (128) to claim 3, wherein the seat (120) .
Therefore, according to the invention described in claim 6, in addition to the action of the invention described in any one of claims 3 to 5, if a large number of sweet potato seedlings N are stored in the seedling storage body 128, the seat 120 is provided. The worker who sits on the seedling can take out the seedling N stored in the seedling storage body 128 and efficiently perform the seedling supply operation to the seedling transporting unit 5.

According to a seventh aspect, a plurality seedling accommodating portion for accommodating in a posture facing seedlings (N) in the longitudinal direction seedling conveyor section (5) (26) in the seedling transport direction (C),該苗housing part ( 26) is provided with an upper lateral feed portion (5a) that moves toward one side in the left-right direction on the upper side of the aircraft and a lower lateral feed portion (5c) that moves toward the other side in the left-right direction on the lower side of the aircraft. , provided by arranging planting body (6) at a plurality intervals in horizontal direction of the machine body, seedling several planting bodies plurality (6) of the seedling accommodating portion (26) of the lower lateral feeding section (5c) it was seedling transplantation machine as set forth in any one of claims 1 to 6, characterized in that the plant structure in the field is taken out.

  Therefore, according to the invention described in claim 7, in addition to the action of the invention described in any one of claims 1 to 6, the operator faces the upper lateral feed part 5 a of the seedling transport part 5. It is easy to perform an operation of sitting on the seat 120 at the position and supplying the seedling N to the seedling accommodating portion 26 by the upper lateral feeding portion 5a that moves the seedling accommodating portion 26 toward one side in the left-right direction on the upper side of the body. In addition, a plurality of seedling planting bodies 6 are arranged at intervals in the left-right direction of the machine body, and the plurality of seedling planting bodies 6 take out the seedlings from the seedling storage section 26 of the lower lateral feed section 5c and Therefore, the seedling transport unit 5 can supply a plurality of seedlings N to a plurality of seedling planting bodies 6, and a multi-row planted seedling transplanting machine having a simple configuration can be obtained. it can.

The invention according to claim 8 has been moved by the upper lateral feed portion (5a) that moves the seedling accommodating portion (26) toward the one side in the left-right direction on the upper side of the machine body, and the upper lateral feed portion (5a). descent feed unit seedling accommodating portion (26) to move the machine body downward and (5b), seedling accommodating portion that has been moved by the lower descending feed unit (5b) to (26) in the lateral direction other side in the machine body lower side lower lateral feeding section and (5c), moving the upper lateral feeding section seedling accommodating portion that has been moved (26) to the machine body upward by said lower lateral feeding section (5c) movement starting side of (5a) which moves towards 8. The apparatus according to claim 1, further comprising an ascending feed portion (5 d) that returns to the top and moving the seedling accommodating portion (26) along a loop-shaped movement path. A seedling transplanter was used.

  Therefore, according to the invention described in claim 8, in addition to the action of the invention described in any one of claims 1 to 7, one seed piece moving part 26 is moved along the loop-shaped movement path. A plurality of seedlings N for the plurality of seedlings can be supplied to the plurality of seedling planting bodies 6 by the seedling transporting unit 5, and a multi-row planting type seedling transplanting machine having a simple configuration can be obtained. Further, since the lower lateral feed part 5c is configured to be long in the left-right direction of the machine body, the spacing adjustment is performed when the spacing between the planting strips is changed by changing the spacing between the plurality of seedling planting bodies 6. Can be widened.

According to the ninth aspect of the present invention, the machine body frame (23) is provided so as to extend rearwardly through the inside of the loop-shaped movement path of the seedling transport section (5) , and the steering handle (2) is provided at the rear of the machine body frame (23). provided with, characterized in that seedling conveying portion driving mechanism of the loop-like movement path inside the plurality of planting bodies (5) (6) and the plurality several planting member (6) (32 b) provided A seedling transplanter according to any one of claims 1 to 8 is provided.

  Therefore, according to the invention described in claim 9, in addition to the operation of the invention described in any one of claims 1 to 8, the airframe can have a simple and compact configuration, and can be used in a small and light passenger. A type seedling transplanting machine can be obtained, and the maneuverability and planting work of the airframe are improved, and a good seedling transplanting work can be performed efficiently.

According to the present invention, it is possible to appropriately water the seedlings planted in the field. Moreover, the riding type seedling transplanter of the simple structure which improves workability | operativity can be obtained, and a subject can be solved appropriately.

It is a whole side view of a sweet potato seedling transplanter. It is a partial omission whole plan view of a sweet potato seedling transplanter. It is a partial cross section top view of a sweet potato seedling transplanter. It is the partially omitted rear view which shows a seedling conveyance part and a seedling planting body. It is a rear view which shows the drive part of a seedling conveyance part. It is a perspective view which shows a seedling planting body. (A) The side view which shows the planting locus | trajectory T of the state which attached the drive arm to the drive shaft, (b) The side view which shows the planting locus | trajectory T of the state which attached the drive arm to the 2nd drive shaft. It is a perspective view which shows a clip. It is a perspective view which shows 2nd Example of the irrigation part of the seedling planting clamping tool 31. FIG. It is a perspective view which shows the 3rd Example of the irrigation part of the seedling planting clamping tool 31. FIG.

A riding type sweet potato seedling transplanter 1 as one embodiment of the present invention will be described below.
The riding type sweet potato seedling transplanter 1 transplants a seedling transporting part 5 for transporting a sweet potato seedling N and a seedling N transported by the seedling transporting part 5 to a field provided with a traveling body 4 and a steering handle 2 in a field. The left and right seedling planting body 6 is provided as a seedling planting device to be attached, and has a structure of two-row planting. In the illustrated example, the traveling machine body 4 is rotatably supported in front of the engine 3, a rear wheel 7 that is a pair of left and right traveling devices that are driven and rotated by the power of the engine 3, and the rear wheel 7. A pair of left and right front wheels 8 are provided.

  A mission case 9 is disposed at the rear portion of the engine 3, and the mission case 9 has a case portion extending from the left side portion to the left side of the engine 3, and this is connected to the left side portion of the engine 3. The output shaft of the engine 3 enters the case portion and the power is transmitted to the transmission mechanism in the transmission case 9. A transmission case 10 is rotatably attached to both left and right sides of the transmission case 9, and the tip of the wheel drive shaft extending from the transmission case 9 to the left and right outer sides enters the rotation center of the transmission case 10. Power for traveling is transmitted to the transmission mechanism in 10. The traveling power is transmitted to the axle 11 extending rearward of the machine body and projecting to the rear end side via the transmission mechanism in the transmission case 10, and the rear wheel 7 is driven to rotate. .

  Further, an upwardly extending arm 12 is integrally attached to the attachment portion of the transmission case 10 to the transmission case 9, and this is vertically aligned with the piston rod end of the lifting hydraulic cylinder 13 fixed to the transmission case 9. It is connected to the left and right sides of a balance rod 14 that is pivotably mounted around. The right side of the connecting portion is connected by a rod 15, and the left side is connected by a left / right horizontal control hydraulic cylinder 16 which can be expanded and contracted.

  When the elevating hydraulic cylinder 13 is actuated and its piston rod protrudes rearward of the machine body, the left and right arms 12 are rotated rearward, and the transmission case 10 is rotated downward accordingly, and the machine body is raised. On the contrary, when the piston rod of the lifting hydraulic cylinder 13 is retracted forward, the left and right arms 12 are rotated forward, and accordingly, the transmission case 10 is rotated upward and the aircraft is lowered. The lifting hydraulic cylinder 13 is configured to operate the airframe to a set height with respect to the height of the upper surface of the aircraft based on the detection result of the sensor 17 that detects the height of the upper surface of the aircraft. It is also configured to operate to raise or lower the aircraft by human operation of the planting lift lever 18 which is an operation tool arranged in the vicinity of the steering handle 2. The planting lifting / lowering lever 18 can be operated to turn on / off the seedling planting body 6 and the seedling transporting unit 5. Further, on the side of the planting lift lever 18, a main clutch lever 19, which is an operation tool capable of turning on and off the traveling machine body 4 by operating a main clutch (not shown) in the mission case 9, is provided. Provided.

  Further, when the left / right horizontal control hydraulic cylinder 16 expands / contracts, the balance rod 14 rotates around the vertical axis connected to the tip of the piston rod of the lifting / lowering hydraulic cylinder 13 at the center of the left / right to transmit left / right transmission. The case 10 is moved up and down alternately to tilt the aircraft to the left and right. The left / right horizontal control hydraulic cylinder 16 is configured to operate the airframe horizontally so as to be horizontal based on a detection result of a sensor (not shown) that detects right / left inclination of the airframe relative to the left / right horizontal.

  The left and right front wheels 8 are fixed to the side of the lower end portion of the arm portion 21 that extends downward at the left and right sides of the front wheel support frame 20 that is pivotally mounted around the axial center in the front-rear direction at the left and right center position below the engine 3. It is rotatably attached to the axle 22. Therefore, the left and right front wheels 8 are capable of rolling around the longitudinal center of the left and right center of the aircraft.

  The steering handle 2 is attached to a rear end portion of a handle frame 23 whose front end portion is fixed to the mission case 9. The handle frame 23 is disposed at the left and right center position of the aircraft and extends rearward, and extends obliquely rearward and upward from the front and rear intermediate portion. The steering handle 2 extends rearward left and right from the rear end portion of the handle frame 23, and the rear end portions thereof serve as grip portions 2 a and 2 a of the steering handle 2. The left and right grip portions 2a, 2a of the steering handle 2 are set to an appropriate height so that the operator can easily grip the grip portions 2a, 2a with hands. In the example shown in the figure, the grip portions 2a, 2a are divided into left and right, but the left and right rear end portions of the steering handle 2 may be connected to each other left and right, and the connecting portion may be used as the grip portion.

  120 is a seat arranged on the left side of the steering handle 2 and on the ridge groove between the left and right ridges D. An operator sits on the seat 120 and feeds the sweet potato seedlings to the upper lateral feed section 5a of the seedling transport section 5 described later. N is supplied. And the support structure of the seat 120 has the following structure.

  That is, the front portion of the left rear transmission case 121L, which is a left auxiliary transmission case, is pivotally supported on the outer side of the left axle 11 of the left rear wheel 7, and is moved inwardly of the rear portion of the left rear transmission case 121L. A left tail wheel axle 122L is mounted on the left tail wheel axle 122L at a position behind the left rear wheel 7 so that the left driving tail wheel 123L is driven to rotate. The left driving tail wheel 123L is rotationally driven by the driving force transmitted from the left axle 11 to the left tail wheel axle 122L by the chain transmission mechanism in the left rear transmission case 121L.

  A seat support frame 124 is provided upward on the rear part of the left rear transmission case 121L, and the seat 120 is mounted on the seat support frame 124. That is, the seat 120 is disposed at a position above the left drive tail wheel 123L and at a rear position of the left side portion of the upper lateral feed portion 5a of the seedling transporting portion 5, and on the left side of the grip portion 2a of the steering handle 2 in a side view of the body. It is the composition arranged near the direction. The left driving tail wheel 123L is set to have a slightly higher rotational speed than the left rear wheel 7, and rotates in the same manner as the left rear wheel 7 even when a load of an operator seated on the seat 120 is applied. As a result, the aircraft can travel straight ahead.

Further, a step 127 on which an operator sitting on the seat 120 puts his / her foot toward the front position of the seat 120 is provided on the inboard side of the left rear transmission case 121L.
Therefore, the operator who is seated on the seat 120 during the transplanting work is located near the rear of the left side of the upper lateral feed part 5a of the seedling transporting part 5, and easily and efficiently sits in a comfortable posture while sitting. The sweet potato seedlings N can be supplied to the upper lateral feed section 5a of the transport section 5, and the seedling transplanting operation can be performed easily and efficiently. Further, since the seat 120 is disposed near the left side position of the grip portion 2a of the steering handle 2, an operator seated on the seat 120 remains in the sitting posture, Various operating tools such as the main clutch lever 19 can be operated, and it is safe and has good workability.

  The seat 120 is mounted on a left rear transmission case 121L that is pivotally supported on the outer side of the left axle 11 of the left rear wheel 7 on the left side of the airframe on which the left and right horizontal control hydraulic cylinders 16 are disposed. Therefore, the fluctuation of the weight of the operator seated on the seat 120 hardly affects the left-right inclination of the aircraft, and a good seedling transplanting operation can be performed. Further, since the seat 120 is disposed above the left driving tail wheel 123L, the weight of the worker seated on the seat 120 is supported by the left driving tail wheel 123L, and further, It is possible to prevent the weight from affecting the left and right postures of the aircraft, and a good seedling transplanting operation can be performed.

  On the other hand, the front portion of the right rear transmission case 121R, which is a right auxiliary transmission case, is pivotally supported on the outer side of the right axle 11 of the right rear wheel 7, and is located inward of the rear of the right rear transmission case 121R. A base portion of the right tail wheel axle 122R is attached to the right tail wheel axle 122R so that a right driving tail wheel 123R as a right auxiliary traveling device is driven and rotated on the right tail wheel axle 122R at a rear position of the right rear wheel 7. The right driving tail wheel 123R is rotationally driven by the driving force transmitted from the right axle 11 to the right tail wheel axle 122R by the chain transmission mechanism in the right rear transmission case 121R.

  Further, a seedling storage body 128 is provided on the left outer side of the seat 120, and if a large number of sweet potato seedlings N are stored in the seedling storage body 128, an operator sitting on the seat 120 is stored in the seedling storage body 128. The obtained sweet potato seedling N can be taken out, and the seedling supply operation of the sweet potato seedling N to the upper lateral feed part 5a of the seedling conveying part 5 can be performed efficiently.

On the left and right rear transmission cases 121L and 121R, left and right irrigation tanks 129L and 129R for storing water for irrigating the planted seedlings described later are mounted.
Accordingly, the left irrigation tank 129L is disposed at the front-rear intermediate position between the left rear wheel 7 and the left driving tail wheel 123L, and is supported by the left rear wheel 7 and the left driving tail wheel 123L in a well-balanced manner. The irrigation tank 129R is disposed at a front and rear intermediate position between the right rear wheel 7 and the right driving tail wheel 123R, and is supported by the right rear wheel 7 and the right driving tail wheel 123R with good balance. Accordingly, since the left and right irrigation tanks 129L and 129R are mounted on the aircraft in a well-balanced manner as described above, even if the amount of water in the left and right irrigation tanks 129L and 129R varies due to irrigation to the planted seedlings, In addition, even if the amount of water in the left and right irrigation tanks 129L and 129R is different on the left and right, there is little influence of load fluctuations on the aircraft, and the aircraft can exhibit good running performance and perform appropriate seedling transplanting work.

  Further, since the front portions of the left and right rear transmission cases 121L and 121R are pivotally supported on the outer sides of the left and right axles 11 of the left and right rear wheels 7, the left and right driving tail wheels 123L and 123R follow the ground appropriately. It moves up and down and the left and right rear wheels 7 and left and right drive tail wheels 123L and 123R are properly driven forward so that the transplanting operation can be performed satisfactorily.

  Also, left and right rear transmission cases 121L and 121R are provided with left and right hydraulic cylinder devices that move up and around the left and right axles 11 and 11 as front pivots with respect to the aircraft. When a maneuvering operator operates the operation switch 130, the left and right rear transmission cases 121L and 121R are turned up and down around the left and right axles 11 and 11 by the left and right hydraulic cylinder devices, and the left and right driving tail wheels 123L and 123R and the seat If 120 is configured to move upward, the grounding member is not provided at the rear of the aircraft body of the steering handle 2, and the aircraft can be easily turned at the end of the heel D. In place of the operation switch 130 described above, the left and right rear transmission cases around the left and right axles 11 and 11 are operated by operating the left and right hydraulic cylinder devices in conjunction with the operation of raising the body of the planting lift lever 18 when turning the body. 121L and 121R may be configured to move upward and downward.

Note that general left and right saddle guide wheels 131L and 131R that allow the aircraft to travel along the saddle D are attached to the front of the aircraft.
Next, the seedling planting body 6 and the seedling transporting unit 5 will be described.

  The left and right seedling planting bodies 6 are provided one on each of the left and right sides of the handle frame 23 arranged at the center position on the left and right sides of the machine body, and drive units for moving up and down the seedling planting action parts 6a serving as seedling holding tools, respectively. It connects and the seedling planting action part 6a (a pair of seedling planting clamping tool 31) of this seedling planting body 4 acts on the seedling conveyed by the seedling conveyance part 5, and is set as the structure which transplants a seedling in a farm field. is there.

  The drive unit that drives the seedling planting body 6 is provided in a planting transmission case 32 that includes a transmission mechanism that receives power for driving the seedling planting tool from the inside of the transmission case 9 and transmits it. As shown in the figure, the planting transmission case 32 has a front case portion connected to the rear portion of the mission case 9 and extending obliquely rearward and upward from the first case portion 32a and upper left and right side portions of the first case portion 32a. The left and right drive shafts 33 extend to the left side and the right side, and the left and right second case portions 32b that have the bases fitted on the left and right drive shafts 33 and extend obliquely downward afterward. A transmission mechanism for transmitting power for driving the seedling planting body 6 from the first case portion 32 a to the left and right second case portion 32 b via the left and right drive shafts 33 is provided. The left and right second case portion 32b is provided so as to be rotatable and movable left and right around the left and right drive shaft 33. Accordingly, the left and right seedling planting body 6 and the seedling transporting unit 5 are provided so as to be rotatable around the left and right drive shaft 33 with respect to the traveling machine body 4, and the left and right seedling planting body 6 can be adjusted in the left and right positions. It is the structure which can adjust the planting strip by the seedling planting body 6. FIG.

  Here, a mechanism for adjusting the spacing between the planting lines will be described. A lead cam shaft 32e is rotatably provided at the distal end portion of a central support 32c having a base fixed to the first case portion 32a and a left and right support 32d having a base rotatably supported by the left and right ends of the left and right drive shafts 33. In the left and right second case portion 32b, a claw body that engages with the cam groove of the lead cam shaft 32e is fixed, and the left and right second case portion 32b is externally fitted to the lead cam shaft 32e. The lead cam shaft 32e is configured such that the right and left cam grooves of the central support 32c are inclined opposite to each other with the central support 32c as a boundary, and is provided at an adjustment dial fixed to the right end of the lead cam shaft 32e. When 32f is turned in the direction of arrow A, the left and right seedling planted bodies 6 approach each other, and the spacing between the planting strips becomes narrower. So that the spacing between the planting lines is widened.

  That is, in the configuration in which the left and right seedling planting bodies 6 simultaneously take out the seedlings from the lower lateral feed section 5c of the seedling transporting section 5 and plant each on the heel D, the adjustment dial 32f is turned to set the left and right spacing between the left and right seedling planting bodies 6 If it changes for every 2 of the accommodating parts 26, planting of a seedling can be performed by adjusting the planting stripes appropriately in the simultaneous two-row planting form. That is, if the seedling accommodating part 26 is the seedling conveyance part 5 arrange | positioned with the pitch of a 10-cm space | interval, it can adjust so that a stripe may be 40 cm * 60 cm * 80 cm.

  In addition, when the planting operation of the left and right seedling planting body 6 is shifted by 180 degrees to a staggered planting configuration, the adjustment dial 32f is turned so that the left and right spacing between the left and right seedling planting body 6 is one by one in the seedling container 26. If changed, seedlings can be planted by adjusting the spacing between the two staggered planting forms. In other words, if the seedling container 26 is the seedling transport unit 5 arranged at a pitch of 10 cm, the striations can be adjusted to 40 cm, 50 cm, 60 cm, 70 cm, and 80 cm.

  Further, the transmission mechanism built in the first case portion 32a includes an intermittent drive mechanism (not shown) for stopping the seedling planting body 6 at a position where the seedling planting body 6 is moved up and down or in the vicinity thereof, and a right and left A planting clutch (not shown) for stopping the operation of the seedling planting body 6 and the seedling transporting unit 5 is provided. The time to stop by the intermittent drive mechanism is adjusted by a speed change mechanism (not shown) provided in the intermittent drive mechanism, and the adjustment between the seedling planting stocks by the left and right seedling planting bodies 6 is adjusted by this adjustment.

Here, the drive structure of the left seedling planting body 6 will be described. The right seedling planting body 6 and the left seedling planting body 6 are arranged symmetrically from the left and right center position of the machine body and operate in the same manner with the same drive configuration.
The left seedling planting body 6 is connected to and driven by a drive arm 34 that rotates as a drive unit. The drive arm 34 is attached to a drive shaft 35 that protrudes from the right side of the rear portion of the second case portion 32b and rotates by a set bolt 34a. Then, the upper end portion of the support link portion 36 of the seedling planting body 6 is rotatably connected to the distal end portion of the drive arm 34, and the front end portion of the swing link 37 is rotatably connected to the lower end portion of the support link portion 36. ing. The rear end portion of the swing link 37 is rotatably supported by a support shaft 39 provided at the rear end portion of the support frame 38 that is fixed to the second case portion 32b and extends rearward. Therefore, when the drive arm 34 is driven and rotated, the seedling planting body 6a of the seedling planting body 6 moves along a locus T as shown in FIG. The trajectory T as shown in FIG. 1 is a motion trajectory (static trajectory) drawn by the seedling planting action unit 6a with respect to the aircraft, and the trajectory T ′ is a time when the aircraft travels forward at the set work speed. It is a movement locus (movement locus) which seedling planting action part 6a draws to a field.

  As shown in the enlarged perspective view of the seedling planting body 6 in FIG. 6, the seedling planting body 6 sandwiches a pair of support parts 41 that are pivotally connected around the connecting shaft 40 and a seedling that is fixed to the tip of the support part 41. A pair of seedling planting clamps 31 and a pair of seedling planting clamp operating arms 42 fixed to the support portion 41 on the opposite side of the connection shaft 40 of the support portion 41 from the seedling planting clamp device 31. ing. In addition, these support part 41, a pair of seedling planting clamping tools 31, and a pair of seedling planting clamping tool operation arms 42 are inclined slightly forward and long in the vertical direction when viewed from the side of the machine body. Discs 42 a are provided at the upper ends of the seedling planting clamp operating arms 42, and the discs 42 a are in contact with the side surfaces of the cam 43. The connecting shaft is attached to the support link portion 36, and the protrusion 43a provided on the side surface of the cam 43 comes into contact with the disk 42a, so that the distance between the pair of seedling planting clamp operating arms 42 is widened. The support portions 41 rotate around the connecting shaft 40 so that the distance between the pair of seedling planting clamps 31 is increased. Therefore, the cam 43 is configured to sandwich the pair of seedling planting clamps 31 and release the clamping. A tension spring 44 is provided between the pair of support portions 41, and the pair of seedling planting clamps 31 are urged toward each other by the tension spring 44. In addition, dimples are provided on the opposing surfaces of the seedling planting clamp 31 to make it easier to clamp the seedling.

  The cam 43 is fixed to the distal end side of the drive arm 34 and rotates integrally with the drive arm 34. Therefore, when the cam 43 is rotated by the driving force from the second case portion 32b, the cam 43 is located at the planting supply position A to the seedling planting body 6 near the top dead center of the planting locus T (T ′). The projecting portion 43a abuts against the seedling planting clamp operating arm 42 and moves in the direction in which the tip of the pair of seedling planting clamps 31 closes, and the lower end of the vine t of the sweet potato seedling N at the planting supply position A (planting) In the attached supply position, the sweet potato seedlings are oriented in the front-rear direction, so the rear end part) is clamped. The seedling planting body 6 embeds the seedling in the soil to the vicinity of the bottom dead center of the planting locus T (T ′) by rotating the drive arm 34 while the seedling is clamped by the seedling planting clamping tool 31, and the tip of the seedling planting body 6 is behind The projecting portion 43a of the cam 43 moves away from the seedling planting clamp operating arm 42 near the bottom dead center, and the tension spring between the pair of support portions 41 is operated. The tip of the pair of seedling planting clamps 31 is urged by 44 to move in the opening direction, and the sandwiched seedlings are released and transplanted into the soil. In addition, since the sweet potato seedlings N are supplied to the planting supply position A in a posture facing the front-rear direction by the seedling transport unit 5 described later, the seedling planting body 6 enters the soil in the posture facing the front-back direction as it is. The vine t of the sweet potato seedling N is transplanted in a posture inclined with respect to the soil surface (畝) D. In addition, since the seedling planting body 6 is operated and planted on the planting locus T extending rearward and downward, the seedling is planted in a state of being tilted forward.

  The pair of seedling planting clamps 31 opened near the bottom dead center of the planting trajectory T (T ′) and released from holding the seedlings operate while changing the front / rear posture from the forward tilted posture to the vertical posture side. When moving forward, the elevator moves up and escapes from the ground. Accordingly, since the seedling planting clamp 31 is close to the entry trajectory into the soil and the exit trajectory from the soil into the soil, the seedling planting clamp 31 is suitable for planting seedlings without making the planting holes in the field dark. Can be done.

  In addition, protrusions projecting from the left and right outer surfaces of the pair of seedling planting clamps 31 are provided, and when the seedlings are planted, the path of the seedling vines is surely created to guide the vines, and the seedling planting clamps 31 are raised. It is preferable to prevent the seedlings planted by dropping the soil placed on the ridges into the passage.

  By the way, the transmission configuration in the left second case portion 32b of the planting transmission case 32 is transmitted from the left drive shaft 33 to the left second case portion 32b to the relay shaft 111 via the chain 110, and a pair of It is configured to be transmitted to the drive shaft 35 output from the second case portion 32b via the transmission gears 100 and 101. Further, the drive shaft 35 is transmitted through the three transmission gears 101, 112, and 113 to the second drive shaft 114 that projects from the right side portion of the left second case portion 32b and rotates. The second drive shaft 114 is disposed at the same position in the left-right direction as the drive shaft 35 and slightly above the drive shaft 35 and on the upper side. The drive arm 34 for driving the left seedling planting body 6 can also be attached to the second drive shaft 114 so as not to be detached by the set bolt 34a. As shown in FIG. 7, when the drive arm 34 is coupled to the second drive shaft 114, the second drive shaft 114 is disposed on the rear side and the upper side of the drive shaft 35, so the drive arm 34 is attached to the drive shaft 35. Compared to the case where the swing link 37 is connected, the swing link 37 swings greatly in the vertical direction of the link 37 in a region close to the front-rear horizontal, and the planting locus T becomes smaller in the front-rear direction and larger in the vertical direction.

  Therefore, the planting locus changing means for changing the planting locus T is configured by changing the drive shaft connecting the drive arm 34 to the drive shaft 35 and the second drive shaft 114. Therefore, when cultivating sweet potatoes for edible use, etc., when it is desired to cultivate a large amount of sweet potatoes, the drive arm 34 is connected to the second drive shaft 114 to reduce the forward tilt of the seedling planting posture. Plant and ensure that each of the sweet potatoes that grow from the roots of the seedling obtain sufficient nutrients. On the other hand, when cultivating sweet potatoes such as processing, etc., when it is desired to cultivate a large number of sweet potatoes even if the size of the sweet potatoes is small, the drive arm 34 is connected to the drive shaft 35 to plant the seedlings. The plant is planted at the bottom of the boat by increasing the forward inclination of the plant to increase the number of sweet potatoes by increasing the number of seedling roots. Thus, the planting methods such as the planting depth and planting posture of the seedlings by the left seedling planting body 6 can be greatly changed.

  Moreover, the watering part which waters water to the planted seedling is comprised by one side of a pair of seedling planting clamping tools 31 of each right-and-left seedling planting body 6. That is, an attachment port 141 for attaching the irrigation hose 140 is formed on the proximal end side of one seedling planting clamp 31, and a discharge opening 142 for discharging water is formed on the inner side of the distal end side of the seedling planting clamp 31. ing. Then, a cavity is formed in the seedling planting clamp 31 from the attachment port 141 to the discharge opening 142, and the water fed through the irrigation hose 140 passes through the cavity and is discharged from the discharge opening 142. It is configured. By forming the discharge opening 142 on the inside of the seedling planting clamp 31, that is, on the surface on the side where the seedling is sandwiched and planted, water can be appropriately irrigated to the seedling planted in the field. In addition, although the example which formed the irrigation part in one seedling planting clamping tool 31 in the present Example was shown, you may make it the structure which forms an irrigation part in both the right and left seedling planting clamping tools 31 and irrigates.

  Next, a description will be given of a configuration for feeding water to the irrigation part of the seedling planting clamp 31. A water pump 143 is mounted on the side of the second case part 32b opposite to the side on which the seedling planting body 6 is mounted, The piston 144 of the water supply pump 143 is configured to extend and contract by a crank-like drive arm 145 provided on a drive shaft 35 that drives the drive arm 34 of the seedling planting body 6 provided at the tip of the second case portion 32b.

  The left and right irrigation pumps 143 pump the water by the right and left water supply hoses 146 from the left and right irrigation tanks 129L and 129R, respectively. It is configured to water the seedlings at the time of planting in the field.

Next, the seedling transport unit 5 will be described.
The seedling transport unit 5 divides an endless belt 47 formed of synthetic rubber into a plurality of partition walls 48 arranged at equal intervals, and stores a seedling storage unit 26 that stores the sweet potato seedling N in a posture in which the vine t faces in the front-rear direction. A plurality of seedlings are formed in the seedling transport direction C, and the upper lateral feed part 5a that moves the seedling accommodation part 26 to the right on the upper side of the machine body, and the seedling accommodation part 26 that has been moved by the upper lateral feed part 5a is located below the machine body The lower feeding part 5b that moves, the lower lateral feeding part 5c that moves the seedling storage part 26 that has been moved by the lowering feeding part 5b to the left on the lower side of the machine body, and the lower lateral feeding part 5c that has been moved The seedling container 26 is provided with an ascending feed section 5d that moves obliquely upward and returns to the movement start end side of the upper lateral feed section 5a, and moves the seedling container section 26 along a single loop-shaped movement path. It is like that.

  The lower lateral feed portion 5c is disposed between the left and right rear wheels 7, and the left end portion of the upper lateral feed portion 5a extends from the upper left rear wheel 7 to the outer side. The movement path is inclined so that the upper lateral feeding portion 5a is located on the rear side as viewed from the side, that is, the upper lateral feeding portion 5a is in an inclined posture in which the seedling accommodating portion 26 on which the seedling is placed is directed slightly rearward. Therefore, the operator sits on the seat 120 disposed above the left drive tail wheel 123L traveling in the ridge between the ridges D, and supplies seedlings to the seedling storage section 26 of the upper lateral feed section 5a. Can be easily performed.

  The left and right seedling planting body 6 is configured to plant the seedlings of the seedling storage unit 26 moved to the left and right planting supply position A by being moved by the lower lateral feeding unit 5c in the field. Further, the left and right seedling planting body 6 takes out the seedling from the seedling container 26 which has been moved to the left and right planting supply position A and plantes it on the ridge D (one process of planting trajectory T (T ′)). Since the seedling transport unit 5 is an interlocking mechanism that laterally feeds the two seedling storage units 26, the left and right seedling planting body 6 sequentially transfers seedlings from the seedling storage unit 26 moved to the left and right planting supply position A. It can be taken out and planted on the ridge D. The descending feed portion 5b is provided with a seedling fall prevention plate 45 that guides the seedling into the seedling accommodating portion 26 so that the seedling does not fall, supported by the support member 46 at the upper portion thereof.

  The seedling storage part 26 is a receiving surface on which the seedling N is placed by the upper lateral feed part 5a in the form of a long bowl before and after the endless belt 47 molded from synthetic rubber is divided by a plurality of partition walls 48 arranged at equal intervals. The upper side feed portion 5a has an open portion on the upper side. In addition, the receiving plate surface 26a of the seedling container 26 is inclined so that the rear side is lower when positioned in the upper lateral feed unit 5a, and an operator behind the seedling transport unit 5 receives the upper lateral feed. The seedling supply operation to the seedling accommodating part 26 of the part 5a can be easily performed.

  In addition, the seedling container 26 has a shape that is open at the front and the back, but is provided with a clip 49 that holds the rear end of the vine t of the seedling N at the rear end. The clip 49 is provided at a central position in the left-right direction of the seedling container 26 and is composed of a pair of left and right sandwiching bodies 50, 52 that are integral with the seedling container 26 and protrude upward from the receiving plate surface 26a. The pair of left and right holding members 50 and 52 are made of elastic rubber so as not to damage the vine t of the holding seedling N. Of the pair of left and right sandwiching bodies 50 and 52, the left sandwiching body 50 is in a hollow state having a space in the front view or the back view, and the upper surface 50a goes to the other (right) sandwiching body 52 side. The side surface 50b on the right holding body 52 side is bent to the opposite side (left side) to the right holding body 52 side at the upper and lower center of the plane facing in the vertical direction. It is the structure provided with the seedling holding | maintenance part 50c which comprises some space between the holding body 52 of this. The right sandwiching body 52 is formed as a single plate that bends, and continues below the sloped portion 52a and an inclined portion 52a that slopes toward the left sandwiching body 50 as it goes down to the upper end. And a planar side surface 52b facing in the vertical direction. When an operator supplies seedlings to the clip 49 with the upper lateral feed section 5a, the vine t of the sweet potato seedlings N is held between the upper surface 50a of the left holding body 50 and the inclined portion 52a of the right holding body 52 on the left holding body 50. It is easy to supply between the side surface 50b of the right side and the side surface 52b of the right sandwiching body 52. Then, when the operator pushes the seedling N downward, the right holding body 52 bends to the side (right side) away from the left holding body 50, and the vine t of the seedling N becomes a seedling holding portion 50c of the left holding body 50. The seedlings are clamped and fixed by a pair of left and right sandwiching bodies 50 and 52. The right sandwiching body 52 has a vine t diameter of the seedling N larger than the distance between the pair of left and right sandwiching bodies 50, 52 of the seedling holding portion 50c when the seedling N is supplied to the seedling holding portion 50c. The right sandwiching body 52 made of elastic rubber is urged toward the left sandwiching body 50 and a sandwiching force acts on the vine t.

  Then, an endless belt 47 in which the seedling container 26 is continuously formed in the left-right direction is attached to a chain 54, and the chain 54 is provided with a pair of front and rear sprockets 55, 56 on the left and right on the upper side of the body, and the body It is wound around sprockets 57 and 58 provided in pairs on the left and right sides of the lower part. The left and right sprockets 55 and 56 on the upper side of the machine body are attached to shafts 59 and 60 supported by a support member 46 fixed to the support frame 38. The left and right sprockets 57 and 58 on the lower side of the machine body are attached to shafts 62 and 63 supported by a support plate 61 fixed to the support frame 38. When the upper right sprocket 56 is driven, the seedling transport unit 5 is driven so that the seedling storage unit 26 moves in the set transport direction C. And the drive part 64 of the seedling conveyance part 5 is interlockingly connected via the interlocking rod 66 with the front-end | tip part of the interlocking link 65 which rocks | fluctuates up and down integrally with the rocking | fluctuation link 37. As shown in FIG. In addition, the seedling transporting unit 26 stops so that the seedling accommodating part 26 stops until each seedling planting action part 6a of the right and left seedling planting body 6 holds the seedling until it descends, and the seedling accommodating part 26 moves at other times. The part 5 is provided so as to be intermittently driven.

  The specific structure of the drive unit 64 of the seedling transport unit 5 is, for example, as shown in FIG. First, the shaft 60 supported by the support member 46 is connected to the rear portion of the shaft 67 attached so as to rotate integrally with the upper right sprocket 56 via a shaft joint, and provided with a protrusion 68a attached to the shaft 67 so as to rotate integrally. The follower disk 68 is installed. Then, a drive arm 69 is rotatably attached to the shaft 67 on the rear side of the driven disk 68, and an upper end portion of the interlocking rod 66 is rotatably attached to a distal end portion of the drive arm 69. The drive arm 69 is provided with a claw 70 that engages with the protrusion 68 a of the driven disk 68. The claw 70 is operated by the sprocket 56 so that the drive arm 69 is operated in the set conveyance direction C of the seedling conveyance unit 5. Is rotated in the direction in which the disk is driven to rotate (when the drive arm 69 moves upward in FIG. 5), the driven disk 68 is engaged with and fixed to the protrusion 68a of the driven disk 68 to rotate integrally. When rotating in the opposite direction (when the drive arm 69 is moved downward in FIG. 5), the ratchet mechanism prevents the driven disk 68 from rotating integrally with the protrusion 68a of the driven disk 68 so as to escape. Is configured. Two pawls 71 are provided to engage the protrusions 68a of the driven disk 68 with the driven disk 68 being prevented from rotating clockwise and counterclockwise. When the drive arm 69 rotates so as to rotate the driven disk 68 integrally, prior to the claw 70 of the drive arm 69 constituting the ratchet mechanism engaging the protrusion 68a of the driven disk 68, An anti-rotation release cam 72 provided integrally with the drive arm 69 prevents the leading end of the claw 71 that prevents the rotation of the driven disk 68 from engaging with the protrusion 68 a of the driven disk 68 so as to prevent the rotation of the driven disk 68. It is designed to move. Then, when the drive arm 69 is rotated to the stroke upper limit position and the driven disk 68 is rotated by a set angle (90 degrees in FIG. 5), the detent release cam 72 is disengaged from the detent 71 for detent. The claw 71 for preventing rotation again engages with the protrusion 68a of the driven disk 68, and the rotation of the driven disk 68 is fixed.

  Therefore, when each seedling planting holder 31 of the left and right seedling planting body 6 holds the seedling and descends and plantes it in the soil, the seedling container 26 is stopped, so that the seedling is smoothly taken out from the seedling container 26. It is possible to plant seedlings accurately in the field. As described above, since the left and right seedling planting body 6 or the member that operates by being connected to the left and right seedling planting body 6 and the driving unit 64 of the seedling transport unit 5 are interlocked and connected, There is an advantage that the drive timing of the left and right seedling planting body 6 and the seedling transport unit 5 can be easily taken, and the drive configuration of the seedling transport unit 5 can be simplified.

  In addition, a lower lateral feed portion 5c that moves the seedling container 26 horizontally in the horizontal direction is provided on the lower part of the machine body during the transition from the downward feed portion 5b to the upward feed portion 5d. A supply position A is provided. Accordingly, during the transition from the descending feed part 5b to the ascending feed part 5d (in the illustrated example, the section moved by the lower right sprocket 58 and the lower left sprocket 57), the seedling storage part 26 is moved by the lower lateral feed part 5c. The left and right seedling planting body 6 transplants the seedling N accommodated in the seedling accommodating portion 26 in the horizontal direction on the lower side, in the field. Therefore, even if the position of the seedling container 26 is shifted when the right and left seedling planting body 6 is planted on the seedling N due to a shift during assembly, the seedling planting body 6 is moved to the lowest end in the movement path. In addition, the seedlings N in the seedling container 26 in the same posture can be planted, and the change in the seedling planting state can be minimized.

  In particular, the endless belt 47 in which a plurality of seedling storage portions 26 are formed in the seedling transport direction C is used as a moving path by the upper lateral feed portion 5a, the downward feed portion 5b, the lower lateral feed portion 5c, and the upward feed portion 5d. Can easily carry out the operation of supplying the sweet potato seedling N to the seedling storage part 26 with the upper lateral feed part 5a arranged long in the horizontal direction of the machine body, and the lower lateral feed part 5c is arranged long in the lateral direction of the machine body. Therefore, when changing the spacing between the left and right seedling planting bodies 6 to change the spacing between the planting strips, the width of the spacing adjustment can be widened. In addition, with the above configuration, two endless seedlings N can be supplied to the left and right seedling planting body 6 with one endless belt 47, and a two-row planted sweet potato seedling transplanting machine having a simple configuration can be obtained. Can do.

  In addition, left and right second case portions 32b, left and right seedling planting bodies 6 and a handle frame 23 are provided in the inner space portion of the seedling transporting portion 5 formed of an endless belt 47 that is a square-shaped moving path in the rear view of the machine body. Since the handle frame 23 is provided below the one case portion 32a and the left and right second case portions 32b, the airframe can be made simple and compact, and a small and lightweight riding seedling transplanter can be obtained. The maneuverability of the aircraft and planting work are improved, and good seedling transplanting work can be performed efficiently.

  A seedling stage 82 is provided from the first case part 32 a of the planting transmission case 32 through a seedling stage support frame 81 from the front side to the upper side of the seedling transport part 5. The front side of the seedling stage 82 is a receiving stage 82a on which a container K containing a large number of sweet potato seedlings N is placed, and the rear side of the seedling stage 82 is a receiving plate surface portion having left and right side walls 82b on which the sweet potato seedlings N can be placed. 82c. And the receiving plate surface part 82c is located above the seedling conveyance part 5, and the notch part 82d notched ahead is provided in the left end part of the receiving plate surface part 82c.

  Accordingly, the operator places the container K containing a large number of sweet potato seedlings N on the receiving stand 82a on the front side of the seedling mounting table 82, and directs the sweet potato seedlings N in the front-rear direction on the receiving plate surface portion 82c on the rear side of the seedling mounting table 82. Place a large number in the state. Then, the operator sits on the seat 120, takes the sweet potato seedlings N placed on the receiving plate surface part 82c on the rear side of the seedling mounting table 82, and puts the seedlings into each seedling storage part 26 of the upper lateral feed part 5a. Supply and do transplantation work. When the sweet potato seedlings N placed on the backing plate surface portion 82c are taken and the seedlings are supplied to the seedling storage portions 26 of the upper lateral feed portion 5a, the backing plate surface portion 82c is positioned above the seedling transporting portion 5. In addition, since the left end portion of the receiving plate surface portion 82c is provided with a notched portion 82d that is notched forward, the operator can easily and efficiently perform this seedling supplying operation, and the seedling transplanting operation Is easy and efficient. In addition, as described above, the worker sitting on the seat 120 takes out the sweet potato seedlings N stored in the seedling storage body 128 on the left outer side of the seat 120 and supplies the seedlings to the upper lateral feed section 5a of the seedling transport section 5. You can also

  In addition, when the sweet potato seedling N placed on the receiving plate surface portion 82c is reduced when the aircraft is turned at the end portion of the heel D, it is placed on the receiving stand 82a on the front side of the seedling placing stand 82. The sweet potato seedling N is taken out from the container K, and the sweet potato seedling N is placed on the receiving plate surface portion 82c. Further, when the sweet potato seedling N in the container K runs out, the empty container K is lowered from the machine body, and a new container K containing a large number of sweet potato seedlings N is placed on the receiving platform 82a.

  On the rear side of the seedling transport section 5, a transmission lever 83 is provided extending from the position of the transmission case 9 to the rear side so that the transmission mechanism in the transmission case 9 can be switched and the traveling speed of the traveling machine body 4 can be stepped. . The riding seedling transplanter 1 has a traveling machine body 4 that travels the machine body in the front, a seedling transport unit 5 that transports seedlings through a predetermined transport path, and a seedling that has been transported by the seedling transport unit 5 in a field. The left and right seedling planting body 6 to be attached and the steering handle 2 are provided at the rear part. From the traveling machine body 4, the upper lateral feed part 5a, the lowering feed part 5b, the lower lateral feed part 5c and the ascending feed part 5d of the seedling transport part 5 are provided. The shift lever 83 and the handle frame 23 that are operation levers that pass through the space surrounded by and extend to the rear side of the seedling transport unit 5 are provided. That is, the transmission lever 83 and the handle frame 23 pass through a predetermined loop-shaped conveyance path of the seedling conveyance unit 5.

  A pair of left and right pressure-reducing wheels 84 are respectively provided behind the left and right seedling planting bodies 6. The pressure wheel 84 is a free wheel, and is configured to suppress the soil above and to the left and right sides of the seedling planted in contact with the soil surface. The pressure wheel support frame is supported from the rear end of the support frame 38. 85 is provided. Therefore, the left and right seedling planting body 6 and the seedling transporting portion 5 respectively mounted on the left and right second case portions 32b rotating around the drive shafts 33 of the planting transmission case 32 are supported by the grounding of the pair of left and right pressure-reducing wheels 84. The left and right seedling planting body 6 and the seedling transporting part 5 respectively mounted on the left and right second case parts 32b follow the unevenness of the soil surface (畝) D and swing to a predetermined height with respect to the soil surface (畝) D. It is supposed to be maintained. In addition, since the weight of the left and right seedling planting body 6 and the seedling transporting part 5 respectively attached to the left and right second case parts 32b acts on the pressure reducing wheel 84, a sufficient pressure reducing action can be obtained by the pressure reducing wheel 84. Moreover, as shown in FIG. 1, the suppression wheel 84 is arrange | positioned above the planting locus | trajectory T of the right-and-left seedling planting body 6, and since the positional relationship of the suppression wheel 84 and the planted seedling N approaches, it becomes close, and suppression The suppression by the ring 84 can be properly maintained, and the suppression effect can be obtained satisfactorily. Furthermore, since the left and right second case portion 32b to which the left and right seedling planting bodies 6 are respectively attached, is provided with a pressure reducing wheel 84 that suppresses the soil above and to the left and right sides of the seedlings planted by the left and right seedling planting bodies 6. When the left and right seedling planting body 6 is adjusted by moving the right and left seedlings by adjusting the spacing between the seedlings, the control wheel 84 moves by the same amount in conjunction with the left and right movement adjustment. Subsequent seedling planting and repressive action can be performed appropriately, and a good seedling transplanting operation can be performed.

  As described above, this riding type sweet potato seedling transplanting machine is self-propelled by the traveling body 4 while straddling two heels D by the left and right front wheels 8, the left and right rear wheels 7 and the left and right driving tail wheels 123L and 123R. An operator seated on the seat 120 supplies the sweet potato seedling N to the upper lateral feed section 5a of the seedling transport section 5 of the self-propelled machine body.

  The seedling transport unit 5 transports the supplied seedlings N, and the left and right seedling planting bodies 6 plant the seedlings N that have been transported by the seedling transporting unit 5 to the left and right planting supply position A, respectively. The seedling transport unit 5 includes a plurality of seedling storage units 26 in the seedling transport direction C, and the sweet potato seedlings N are stored in the seedling storage unit 26 in a posture in which the vine t faces in the front-rear direction. The operator supplies the seedling N to the seedling container 26 that is moved in the left-right direction on the upper side of the machine body by the upper lateral feed section 5a. The supplied seedling is fixed to the seedling container 26. The seedling storage part 26 to which the seedlings are supplied is moved downward by the lower feeding part 5b following the upper lateral feeding part 5a. The seedling storage part 26 that has been moved by the descending feed part 5b is moved upward by the ascending feed part 5d via the lower lateral feed part 5c and returns to the movement start end side of the upper lateral feed part 5a.

  The left and right seedling planting body 6 is housed in the seedling housing part 26 that has been moved to the left and right planting supply position A of the lower lateral feed part 5c by the descending feed part 5b, with each seedling planting action part 6a moved up and down by the drive part. The seedlings are planted in the field by acting on the rear end portion of the seedling N thus formed on the rear side of the seedling storage portion 26. At this time, the seedling N is clamped and fixed by the clip 49 of the seedling container 26, but since the clamping force of the seedling planting holder 31 of the left and right seedling planting body 6 is larger than the clamping force of the clip 49, the right and left The seedling planting body 6 moves the seedling to the rear side along the planting locus T so that the vine t of the seedling N is detached from the clip 49.

  When transplanting this sweet potato seedling N, the operator fixes the lower end of the vine t of the seedling N to the clip 49 of the seedling storage section 26 in the upper lateral feed section 5a of the seedling transport section 5, but it is bent. When the vine t is supplied with the lower end of the vine t facing downward, the seedling is transported by the seedling transport unit 5 so that the lower end of the vine t is directed upward at the planting supply position A, and the leaves of the seedling are against the vine. Face up. And a seedling is transplanted in soil with the seedling planting body 6 with the posture. Therefore, since the process of transporting the seedling planting body 6 into the soil is simple, the vines are not easily bent or twisted, and the transplanting accuracy is improved, and the leaves are intensively directed upward with respect to the inclined vines. Can be transplanted with sweet potato seedlings Further, since the pair of seedling planting clamps 31 extending vertically sandwich the lower end of the vine t bent upward in the state of being inclined forward at the planting supply position A, the vine t bent in the direction of the seedling planting clamp 31 It can be in a state close to the vertical direction with respect to the direction of the lower end of the plant, and even if the position of the seedling is slightly deviated at the planting supply position A, it is possible to ensure the clamping and stabilization of the seedling, and to have an appropriate posture It is possible to plant seedlings and to transplant stable seedlings.

  Therefore, since the sweet potato seedlings N can be transplanted with the leaves intensively directed to the inclined vine t, the transplanted seedling leaves protrude out of the soil and receive light such as sunlight. The roots are vigorously grown and good growth can be achieved. In addition, since the direction of the leaf with respect to the axis of the vine is determined by the direction of the lower end of the vine that tends to bend, it is easy to determine the direction of the leaves and transplant the seedling to the clip 49. The work efficiency of the seedling supply operation to the seedling storage section 26 of the person is improved, the seedling transport section 5 can be operated at a high speed in order to improve the transplanting work efficiency, and the work efficiency of the seedling transport work of the seedling transport section 5 is improved. Improvements can be made.

  FIG. 9 shows a second embodiment of the irrigation part of the seedling planting clamp 31, and an elastic body 150 formed in an uneven shape made of a synthetic resin on the inner side surface of the opposing seedling planting action part 6a of the pair of seedling planting clamps 31. When the vine t of the seedling N is clamped by the seedling planting action portion 6a of the pair of seedling planting clamps 31, the vine t of the seedling N is appropriately selected by the elastic body 150 formed in the uneven shape. Therefore, a good transplanting operation of the seedling N can be performed.

  Further, a large number of discharge openings 142 for discharging water are formed in the convex portion 151 of the elastic body 150. Then, a cavity is formed in the seedling planting clamp 31 from the attachment port 141 to each discharge opening 142, and the water fed through the irrigation hose 140 passes through the cavity and passes through each discharge opening 142. It is configured to be released from.

  Accordingly, each discharge opening 142 is formed on the inside of the seedling planting holding tool 31, that is, on the surface on the side where the seedling is sandwiched and planted, so that water can be appropriately irrigated to the seedling planted in the field. In addition, by draining water to the surface part that holds the vine t of the seedling N at the time of seedling planting, it acts to help the vine t of the seedling N to be separated from the seedling planting action part 6a of the seedling planting holding tool 31. In addition, it is possible to avoid a situation where the seedling N vine t adheres to the seedling planting action portion 6a of the seedling planting clamp 31 and the seedling is brought home, and a favorable seedling transplanting operation can be performed. Moreover, by discharging water to the surface portion that holds the vine t of the seedling N, mud adhering to the surface portion that holds the vine t of the seedling N can be washed away, and mud is deposited on the surface portion that holds the vine t of the seedling N. It is possible to avoid a situation in which the attachment of the seedling N is hindered and the seedling N is hindered, and a good seedling transplanting operation can be performed.

FIG. 10 shows a third embodiment of the irrigation part of the seedling planting clamp 31, in which a vertical groove 160 is formed at the center of the inner surface of the opposing seedling planting part 6 a of the pair of seedling planting clamps 31. A discharge opening 142 for discharging water is provided at the base of 160. Then, a hollow portion is formed in the seedling planting clamp 31 from the attachment port 141 to the discharge opening 142, and the water fed through the irrigation hose 140 passes through the hollow portion to form a groove from the discharge opening 142. is guided has a configuration that is released 160.

  Accordingly, the water that is guided and released from the discharge opening 142 to the groove 160 is appropriately irrigated by the seedlings planted in the field, and further, the water is applied to the surface portion that holds the vine t of the seedling N at the time of seedling planting. Is discharged to help the seedling N vine t to move away from the seedling planting action portion 6 a of the seedling planting clamp 31, and the seedling N vine t is formed in the seedling planting action portion 6 a of the seedling planting clamp 31. It is possible to avoid the situation of adhering and bringing back the seedling, and good seedling transplanting work can be performed. Moreover, by discharging water to the surface portion that holds the vine t of the seedling N, mud adhering to the surface portion that holds the vine t of the seedling N can be washed away, and mud is deposited on the surface portion that holds the vine t of the seedling N. It is possible to avoid a situation in which the attachment of the seedling N is hindered and the seedling N is hindered, and a good seedling transplanting operation can be performed.

2 Steering handle 4 Traveling machine body 5 Seedling transport part 5a Upper lateral feeding part 5b Lowering feeding part 5c Lower lateral feeding part 5d Upward feeding part 6 Seedling planting body 7 Left and right traveling device (rear wheel)
10 Transmission case 18 Operation tool (planting lift lever)
19 Operation tool (main clutch lever)
23 Airframe frame 26 Seedling storage part 32b Drive mechanism 120 of seedling planting body 6 Seat 123L Left auxiliary traveling device (left drive tail wheel)
123R Right auxiliary travel device (Right drive tail wheel)
121L Left auxiliary transmission case (left rear transmission case)
121R Right auxiliary transmission case (right rear transmission case)
129L Left irrigation tank 129R Right irrigation tank 128 Seedling container C Seedling transport direction N Seedling

Claims (9)

Seedling transporting unit provided in (5) and該苗conveying unit planted seedling planting body in the field is taken out the transported seedlings at (5) (6) the vehicle body (4), the planting body (6) In a seedling transplanting machine provided with a pair of seedling planting clamps (31) for clamping a seedling, a release opening (142) for discharging water is provided inside the pair of seedling planting clamps (31). Seedling transplanter . The seedling transplanter according to claim 1, characterized in that a hollow portion is provided in the seedling planting clamp (31) and water is discharged from the discharge opening (142) through the hollow portion. . A left and right traveling device (7) for advancing the traveling machine body (4) is provided, and a steering handle (2) in which various operation tools (18, 19) are arranged at the front and rear direction end parts of the traveling machine body (4) is provided, A seat (120) on which an operator sits facing (5) is provided on the left and right sides of the steering handle (2) on the left and right sides of the aircraft, and the seat (120) is provided on the left and right sides of the aircraft. The seedling transplanter according to claim 1 or 2, wherein the supporting traveling device (123L) to be supported is provided at a rear position of at least one of the left and right traveling devices (7). . A left and right transmission case (10) for transmitting rotational driving force is provided to each of the left and right traveling devices (7), and the base of the left and right auxiliary transmission cases (121L and 121R) can be freely rotated in each of the left and right transmission cases (10). At the same time, the left and right auxiliary transmission cases (121L and 121R) are respectively attached to the left and right auxiliary traveling devices (123L and 123R), and the left and right auxiliary transmission cases (10) and the left and right auxiliary transmission cases (121L and 121R) are respectively left and right auxiliary. The seedling transplanting machine according to claim 3, wherein a rotational driving force is transmitted to the traveling device (123L, 123R). Left and right irrigation tanks (129L and 129R) for storing water for irrigating seedlings planted in the left and right auxiliary transmission cases (121L and 121R) between the left and right traveling devices (7) and the left and right auxiliary traveling devices (123L and 123R) The seedling transplanter according to claim 4, wherein each of the seedling transplanters is mounted. The seedling transplanter according to any one of claims 3 to 5, wherein a seedling storage body (128) is provided on a side of the seat (120). A plurality of seedling storage parts (26) are provided in the seedling transporting direction (C) for storing the seedlings (N) in a posture facing the front-rear direction in the seedling transporting part (5). An upper lateral feed portion (5a) that moves toward one side in the direction and a lower lateral feed portion (5c) that moves toward the other side in the left-right direction on the lower side of the machine body are provided, and a seedling planting body (6) is provided. A configuration in which a plurality of seedling planting bodies (6) are provided in the left-right direction of the machine body, and the plurality of seedling planting bodies (6) take out seedlings from the seedling storage section (26) of the lower lateral feeding section (5c) and plant them in the field. The seedling transplanter according to any one of claims 1 to 6, wherein the seedling transplanter is configured as described above. An upper lateral feed part (5a) that moves the seedling accommodating part (26) toward one side in the left-right direction on the upper side of the machine body, and a seedling accommodating part (26) that has been moved by the upper lateral feed part (5a) A lower feed section (5b) that moves downward from the machine body, and a lower lateral feed section that moves the seedling container (26) moved by the lower feed section (5b) toward the other side in the left-right direction on the lower side of the machine body (5c) and the ascending feed part (5d) which moves the seedling storage part (26) moved by the lower lateral feed part (5c) to the upper side of the machine body and returns to the movement start end side of the upper lateral feed part (5a). The seedling transplanter according to any one of claims 1 to 7, wherein the seedling transplanter (26) is moved along a loop-shaped moving path. The machine body frame (23) is provided through the inside of the loop-shaped movement path of the seedling transport unit (5) and directed rearward, and a steering handle (2) is provided at the rear of the machine body frame (23), and the seedling transport unit (5 A plurality of seedling planting bodies (6) and a drive mechanism (32b) for the plurality of seedling planting bodies (6) are provided inside the loop-shaped movement path of (1) to (8). The seedling transplanter according to any one of the above.