JP2011067136A - Seedling transplanter - Google Patents

Abstract

An object of the present invention is to improve the workability of each stage by a plurality of seedlings such as sweet potato seedlings can be planted in one stroke with a simple seedling transplanter.
In a seedling transplanting machine provided with a seedling transporting section 5 and a seedling transplanter 6 for taking out the seedling transported by the seedling transporting section 5 and planting the seedling in a field, the seedling transporting section 5 has a seedling N. A plurality of seedling storage portions 26 that store the seedling storage portions 26 in a posture facing in the front-rear direction in the seedling transport direction C, and an upper lateral feed portion 5a that moves the seedling storage portions 26 toward one side in the left-right direction on the upper body side; A lower lateral feed portion 5c that moves toward the other side in the left-right direction on the lower side is provided, and a plurality of seedling planting bodies 6 are provided at intervals in the left-right direction of the machine body. Is configured to take out the seedling from the seedling storage portion 26 of the lower lateral feeding portion 5c and plant it in the field, and the seat 120 on which the operator sits facing the upper lateral feeding portion 5a of the seedling transporting portion 5 is A seedling transplanting machine provided between the plurality of seedling planting bodies 6 on the outermost side was used.
[Selection] Figure 3

Description

  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 device, 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 sandwiching of the seedlings is released, and in a state where the sandwiching 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 has a single-row planting structure, and the working speed is still slow, and it is necessary to further improve workability.

  Accordingly, an object of the present invention is to improve the workability of each kind of seedling transplanting machine with a simple structure by allowing a plurality of seedlings such as sweet potato seedlings to be planted in one stroke.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the invention described in claim 1 is a seedling transplanting machine provided with a seedling transporting unit 5 and a seedling transplanter 6 that takes out the seedlings transported by the seedling transporting unit 5 and transplants the seedlings in a field. A plurality of seedling storage portions 26 for storing the seedlings N in the posture in the front-rear direction are provided in the transporting portion 5 in the seedling transporting direction C, and the seedling storage portions 26 are moved toward one side in the left-right direction on the upper body side. A feed part 5a and a lower lateral feed part 5c that moves toward the other side in the left-right direction on the lower part of the machine body are provided, and a plurality of seedling planting bodies 6 are arranged at intervals in the machine body left-right direction. A single seedling planting body 6 is configured to take out a seedling from the seedling storage part 26 of the lower lateral feeding part 5c and plant it in the field, and an operator sits facing the upper lateral feeding part 5a of the seedling transporting part 5. A seat 120 is provided between the plurality of seedling planting bodies 6 on the outermost left and right sides when the aircraft is viewed from the front. It was a seedling transplanting machine.

  Therefore, according to the first aspect of the present invention, the operator is positioned between the plurality of seedling planting bodies 6 at the left and right outermost sides in the front view of the machine body so as to face the upper lateral feeding part 5a of the seedling transporting part 5. It is possible to easily perform the operation of sitting on the seat 120 and supplying the seedling N to the seedling accommodating portion 26 by the upper lateral feed 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 provided 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 accommodating part 26 of the lower lateral feeding part 5c and plant them in the field. Since it is set as the structure to attach, the seedling conveyance part 5 can supply several seedlings N to the several seedling planting body 6, and can obtain the multiple-row planting seedling transplanter of a simple structure.

  The invention according to claim 2 includes an upper lateral feed portion 5a that moves the seedling accommodating portion 26 toward one side in the left-right direction on the upper side of the machine body, and the seedling accommodating portion 26 that has been moved by the upper lateral feed portion 5a. A lower feeding part 5b that moves downward in the machine body, a lower lateral feeding part 5c that moves the seedling storage part 26 that has been moved by the lowering feeding part 5b toward the other side in the left-right direction on the lower part of the machine body; The seedling accommodating part 26 that has been moved by the feeding part 5c is moved upwards of the machine body and is provided with an ascending feed part 5d that returns to the movement start end side of the upper lateral feeding part 5a. The seedling transplanting machine according to claim 1, which moves along the path.

  Therefore, according to the invention described in claim 2, in addition to the operation of the invention described in claim 1, seedlings for a plurality of strips are formed by one seedling transporting part 5 that moves the seedling container 26 along the loop-shaped movement path. N can be supplied to the plurality of seedling planting bodies 6, and a multiple-row planting 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 third aspect of the present invention, the machine body frame 23 is provided through the looped movement path of the seedling transport unit 5 so as to be directed rearward, the steering handle 2 is provided at the rear of the machine body frame 23, and the seedling transport unit 5 The seedling transplanting machine according to claim 1 or 2, wherein 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.

  Therefore, according to the invention described in claim 3, in addition to the action of the invention described in claim 1 or claim 2, the machine body can have a simple and compact configuration, and a small and light seedling transplanter can be obtained. It is possible to improve the maneuverability and planting work of the aircraft, and to perform efficient seedling transplanting work efficiently.

  The invention according to claim 4 is the seedling according to any one of claims 1 to 3, wherein a seat 120 is provided on the frame 121L after the base portion is attached to the airframe, and a wheel 130 is provided below the seat 120. A transplanter was used.

  Therefore, according to the invention of claim 4, in addition to the action of the invention of any one of claims 1 to 3, the weight of the operator seated on the seat 120 by the wheel 130 can be supported, In addition, it is possible to prevent the weight of the operator sitting on the seat 120 from affecting the left and right posture of the aircraft, and to perform a good seedling transplanting operation.

  The invention according to claim 5 is the seedling transplanting machine according to claim 4, wherein the wheel 130 provided below the seat 120 is the guide wheel 130 of the heel guide wheel device 125 that rolls in the ridge groove between the adjacent heels D. It was.

  Therefore, according to the invention described in claim 5, in addition to the action of the invention described in claim 4, the weight of the operator seated on the seat 120 can be supported by the heel guide wheel device 125, and further, the seat 120 It is possible to prevent the weight of the operator seated on the body from affecting the left and right posture of the machine body, and the machine body can be made to follow along the heel D by the heel guide wheel device 125, thereby facilitating seedling transplanting work. And it can be done efficiently and appropriately.

  The invention according to claim 6 is configured such that the wheel or guide wheel 130 is driven by the electric motor 128, and the operation switch 131 for switching the electric motor 128 between the operating state and the non-operating state is provided. A seedling transplanter.

  Therefore, according to the invention described in claim 6, in addition to the operation of the invention described in claim 4 or 5, the electric motor 128 is operated by the operation of the operation switch 131 so that the wheel or the guide wheel 130 becomes the drive wheel. Can be switched to the case where the electric motor 128 is stopped and the wheel or the guide wheel 130 is used as an idle wheel, that is, the field is in a muddy soil and the field condition is poor such that the wheel is likely to slip. In other words, if the electric motor 128 is operated by the operation of the operation switch 131 and the wheel or the guide wheel 130 is used as a drive wheel, the propulsive force of the machine body is increased and a good seedling transplanting operation can be performed even when the field conditions are bad. . On the other hand, when the field conditions are good so that the aircraft can proceed well in dry soil, the electric motor 128 is stopped by operating the operation switch 131 and the wheel or guide wheel 130 is idled. As a seedling transplanting work, energy saving work can be performed by preventing wasteful use of energy.

  According to the seventh aspect of the invention, the rear frames 121L and 121R are provided with left and right rear idlers 123L and 123R that are positioned behind the left and right rear wheels 7 so as to be rotatable, and the upper lateral feed portion 5a of the seedling transporting portion 5 The seedling transplanter according to any one of claims 4 to 6, wherein left and right auxiliary seats 132L and 132R are provided on the left and right sides of the left and right sides.

  Therefore, according to the invention described in claim 7, in addition to the operation of the invention described in any one of claims 4 to 6, when there are a plurality of workers, the seat 120 and the left and right auxiliary seats 132L. An operator can sit at 132R and supply seedlings N to the upper lateral feed section 5a of the seedling transport section 5 by a plurality of persons, so that seedling transplanting work can be performed with high efficiency.

The invention according to claim 8 is the seedling transplanter according to any one of claims 1 to 7, wherein the seedling storage bodies 133 </ b> L and 133 </ b> R are provided on the side of the seat 120.
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, if a large number of seedlings N are stored in the seedling storage bodies 133L and 133R, the seat The operator seated in 120 or the left and right auxiliary seats 132L and 132R takes out the seedlings N stored in the seedling storage bodies 133L and 133R, and efficiently supplies the seedlings N to the upper lateral feed section 5a of the seedling transport section 5. Can be done.

  According to the present invention, with a seedling transplanter having a simple configuration, a plurality of seedlings such as sweet potato seedlings can be planted in one step, the workability is improved at each stage, and the problem 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 whole top view which shows the principal part 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 rear view which shows another seedling accommodating part. It is a partial cross section rear view of 84 parts of right-and-left suppression wheels. It is a side view of the sweet potato seedling transplanter which shows another example. It is a top view of the sweet potato seedling transplanter which shows another example.

A sweet potato seedling transplanter 1 as one embodiment of the present invention will be described below.
The sweet potato seedling transplanter 1 is a machine equipped with a traveling device 4 and a steering handle 2, a seedling transport unit 5 that transports the sweet potato seedling N, and a seedling that transplants the seedling N transported by the seedling transport unit 5 in the field A right and left seedling planting body 6 serving as a planting device is provided, and a two-row planting structure is provided. In the illustrated example, the traveling device 4 includes an engine 3, a pair of left and right rear wheels 7 that are driven and rotated by transmission of the power of the engine 3, and a pair of left and right front wheels that are rotatably supported in front of the rear wheel 7. 8 and so on.

  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 so as to raise or lower the aircraft by human operation of the planting lift lever 18 disposed 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, there is provided a main clutch lever 19 that can operate a main clutch (not shown) in the mission case 9 to turn on and off the traveling device 4.

  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.

  Reference numeral 120 denotes a seat disposed on the ridge groove between the left and right rods D at the left and right center position on the rear side of the steering handle 2, and the operator sits on the seat 120 and sits on the seat 120, and an upper lateral feed unit 5a of the seedling transport unit 5 described later. Supply sweet potato seedling N to And the support structure of the seat 120 has the following structure.

  That is, the front portion of the left rear frame 121L is pivotally supported on the outer portion of the left axle 11 of the left rear wheel 7, and the base of the left rear lateral support rod 122L is fixed to the rear portion of the left rear frame 121L. A left rear idler wheel 123L is pivotally supported at a position behind the left rear wheel 7 in the middle of the left rear lateral support rod 122L, and a vertical frame 124 is fixed to the tip of the left rear lateral support rod 122L. A saddle guide wheel device 125 is attached to the lower part of the vertical frame 124, and a seat 120 is attached to the upper part of the vertical frame 124. Further, a step 127 is provided in which a front support rod 126 is extended from the vertical frame 124 toward the front, and an operator sitting on the seat 120 puts his / her foot on the front portion of the front support rod 126.

  The scissors guide wheel device 125 includes an electric motor 128 fixed to the lower portion of the vertical frame 124 and left and right guide wheels 130 mounted on a drive shaft 129 that protrudes from the left and right sides of the electric motor 128. Then, when the electric motor 128 is operated by turning on the operation switch 131 disposed in the vicinity of the steering handle 2 and the left and right guide wheels 130 are driven wheels, and when the operation switch 131 is turned off, the electric motor 128 is stopped. Thus, the left and right guide wheels 130 are switched when they are idle wheels. That is, when the farm field is muddy soil and the field condition is bad such that the wheel is likely to slip, if the electric motor 128 is operated by turning on the operation switch 131 and the left and right guide wheels 130 are driven wheels, Even if the propulsive force of the aircraft increases and the field conditions are poor, good seedling transplanting work can be performed. On the other hand, when the field conditions are good so that the aircraft can proceed smoothly on dry soil, the electric motor 128 is stopped by turning off the operation switch 131 and the left and right guide wheels 130 are idled. As a seedling transplanting work, energy saving work can be performed by preventing wasteful use of energy.

The left and right guide wheels 130 are provided so that the mounting position on the drive shaft 129 can be adjusted in the left-right direction, and the left-right wheel spacing H can be adjusted according to the width of the groove.
On the other hand, the front portion of the right rear frame 121R is pivotally supported on the outer portion of the right axle 11 of the right rear wheel 7, and the base portion of the right rear lateral support rod 122R is fixed to the rear portion of the right rear frame 121R. A right rear idler wheel 123R is pivotally supported at the front end of the right rear lateral support rod 122R at a rear position of the right rear wheel 7. The left and right auxiliary seats 132L and 132R are provided in the middle of the left and right rear frames 121L and 121R, respectively.

  Therefore, the operator who is seated on the seat 120 during the transplanting work is located near the rear of the left and right center part of the upper lateral feed part 5a of the seedling transport part 5, and can easily and efficiently sit in a comfortable posture. The sweet potato seedlings N can be supplied to the upper lateral feed section 5a of the seedling transport section 5, and the seedling transplanting operation can be performed easily and efficiently.

  The seat 120 is mounted on a left rear frame 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, a change in 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. In addition, since a saddle guide wheel device 125 that acts so that the machine body travels along the saddle D is attached to the lower part of the seat 120, the weight of the operator seated on the seat 120 can be supported by the saddle guide wheel device 125. In addition, it is possible to prevent the weight of the operator sitting on the seat 120 from affecting the left and right postures of the machine body, and to perform a good seedling transplanting operation.

  In addition, since the left and right auxiliary seats 132L and 132R are provided on the left and right of the upper lateral feed portion 5a of the seedling transport unit 5, when there are a plurality of workers, the workers are placed on the seat 120 and the left and right auxiliary seats 132L and 132R. Can sit down and supply seedlings of the sweet potato seedlings N to the upper lateral feed section 5a of the seedling transport section 5 by a plurality of people, so that seedling transplanting work can be performed with high efficiency.

  Further, left and right seedling storage bodies 133L and 133R are respectively provided on the left and right sides of the seat 120. If a large number of sweet potato seedlings N are stored in the left and right seedling storage bodies 133L and 133R, the seat 120 or the left and right auxiliary seats 132L and The operator seated at 132R can take out the sweet potato seedlings N stored in the left and right seedling storage bodies 133L and 133R, and efficiently perform the seedling supply operation of the sweet potato seedlings N to the upper lateral feed section 5a of the seedling transporting section 5.

  In addition, a left and right hydraulic cylinder device is provided for moving the left and right rear frames 121L and 121R up and around the left and right axles 11 and 11 as front pivots with respect to the aircraft. The left and right rear frames 121L and 121R are moved up and rotated around the left and right axles 11 and 11 so that the seat 120, the saddle guide wheel device 125 and the left and right rear idle wheels 123L and 123R are moved up. The grounding member is eliminated from the rear part of the machine body of the handle 2, and the machine body can be easily turned at the end of the heel D.

  The traveling device 4 has a four-wheel configuration, but may have a two-wheel configuration including only a pair of left and right drive wheels, or may be a pressure-reducing wheel that rolls on the upper surface instead of the front wheels. Moreover, it is good also as a crawler type traveling apparatus.

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 tools 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 plants 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 about the left and right drive shaft 33 with respect to the traveling device 4, and the left and right seedling planting body 6 can be adjusted in the left and right positions, respectively. 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 narrow, and when the adjustment dial 32f is turned in the direction of arrow B, the left and right seedling planted bodies 6 are separated from each other 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 feeding section 5c of the seedling transporting section 5 and plant each on the heel D, the adjustment dial 32f is turned so that the left and right spacing between the left and right seedling planting bodies 6 is the seedlings. 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. A trajectory T as shown in FIG. 1 is a motion trajectory (static trajectory) drawn by the seedling planting action portion 6a with respect to the aircraft, and the trajectory T ′ is a time when the aircraft travels forward at a 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 rearward. 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.

Next, the seedling transport unit 5 will be described.
The seedling transport unit 5 divides an endless belt 47 molded from synthetic rubber by 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 And a rising feed part 5d that moves the seedling container 26 upward and returns to the movement start end side of the upper lateral feed part 5a. It moves along the square movement path) .

  The upper lateral feed portion 5 a and the lower lateral feed portion 5 c are disposed between the left and right rear wheels 7, and the rear end of the upper lateral feed portion 5 a is located at the center of the left and right sides of the steering handle 2 at a position behind the left and right rear wheels 7. It is arrange | positioned near the front side of the attachment position to the handle frame 23 of a part. Therefore, the operator sits on the seat 120 disposed on the ridge groove between the left and right rods D at the left and right center position on the rear side of the steering handle 2 and supplies seedlings to the upper lateral feed portion 5a. The moving path is inclined so that the upper lateral feeding portion 5a is located on the rear side in a side view, and the seedling accommodating portion 26 of the upper lateral feeding portion 5a is located near the worker on the rear side of the seedling conveying portion 5. Is arranged so that the operator can easily perform the seedling supply operation to the seedling accommodating portion 26 of the upper lateral feeding portion 5a.

  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.

  In addition, when the seedling is transported by the descending feeding portion 5b, the seedling may be rubbed against the seedling fall prevention plate 45 to damage the seedling N. Therefore, as shown in FIG. 9, by attaching a rubber elastic plate 53 to the side plate portion 48 of the seedling container 26, the elastic plate 53 comes into contact with the seedling fall prevention plate 45 and is bent by the descending feed portion 5 b. The elastic plate 53 can cover the open portion of the seedling container 26 and prevent the seedling from coming into contact with the seedling fall prevention plate 45.

  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 driving timing of the planted body 6 and the seedling transporting unit 5 can be easily taken and the driving configuration of the seedling transporting 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, an endless belt 47 in which a plurality of seedling storage portions 26 are formed in the seedling conveyance direction C is formed into a square shape when viewed from the rear of the machine body by an upper lateral feed portion 5a, a downward feed portion 5b, a lower lateral feed portion 5c, and an upward feed portion 5d. Since the movement route is used, the operator can easily perform the operation of supplying the sweet potato seedling N to the seedling storage unit 26 with the upper lateral feed unit 5a that is long in the left-right direction of the machine body, and the lower lateral feed unit 5c. Since it is arranged long in the left and right direction of the machine body, the width of the inter-row adjustment can be widened when the space between the left and right seedling planting bodies 6 is changed to change the space between the planting lines. 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 simple configuration two-row planted sweet potato seedling transplanter can be obtained. .

  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 machine body can be made simple and compact, and a small and light seedling transplanter can be obtained. Good maneuverability and planting work, and efficient and good seedling transplanting work can be performed.

  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-right center 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 disposed on the ridge groove between the left and right ridges D at the left and right center position on the rear side of the steering handle 2, and is placed on the receiving plate surface portion 82c on the rear side of the seedling stage 82. The sweet potato seedlings N are taken, and the seedlings are supplied to the seedling accommodating parts 26 of the upper lateral feed part 5a to perform 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 notch portion 82d cut out forward is provided in the left and right center portion of the receiving plate surface portion 82c, the operator can easily and efficiently perform this seedling supply operation, and seedling transplantation Work is easy and efficient.

  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 device 4 can be stepped. . The seedling transplanting machine 1 includes a traveling device 4 that travels the machine body in the front, a seedling transporting unit 5 that transports seedlings along a predetermined transport path, and a right and left for planting seedlings transported by the seedling transporting unit 5 in a field. Although the seedling planting body 6 and the steering handle 2 are provided at the rear, the upper lateral feed part 5a, the lowering feed part 5b, the lower lateral feeding part 5c, and the ascending feed part 5d of the seedling transport part 5 from the traveling device 4 The shift lever 83 that is an operation lever that passes through the enclosed space and extends to the rear side of the seedling transport unit 5 and the handle frame 23 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 sweet potato seedling transplanting machine is self-propelled by the traveling device 4 in a state where the two heels D are straddled by the left and right front wheels 8 and the rear wheels 7, and the upper part of the seedling conveying section 5 of the self-propelled aircraft. An operator who sits on the seat 120 disposed on the ridge groove between the two left and right rods D and located on the rear side of the steering handle 2 at the center of the left and right sides of the machine body supplies the sweet potato seedlings N to the lateral feed portion 5a.

  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 transporting process of 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.

  Reference numeral 90 denotes a left and right medicine spraying device, which is a general medicine tank 91, a feeding device 92 that feeds the medicine in the medicine tank 91 by a predetermined amount, and a seedling N near the seedling N planted with the medicine fed by the feeding device 92. The medicine guide pipe 93 that guides and spreads on the upper surface of the heel D is attached to the left and right support frames 38 that support the left and right pressure-reducing wheels 84 by the support fixing members 94. The feeding device 92 is driven by an electric motor, and the operation of the feeding device 92 is changed in conjunction with the change in the vehicle speed or between the stocks, so that the medicine is appropriately sprayed on the planted seedlings N.

  Therefore, since the left and right second case portions 32b to which the left and right seedling planting bodies 6 are respectively mounted are provided with the pressure reducing wheels 84 for suppressing the soil above and right and left side of the seedlings planted by the left and right seedling planting bodies 6. When the left and right seedling planting body 6 is adjusted to move left and right by adjusting the spacing between the seedlings, the pressure wheel 84 and the left and right drug spraying device 90 also move by the same amount in conjunction with the left and right movement adjustment. In addition, the seedling planting after the seedling planting adjustment, the pressure-suppressing action on the planted seedling, and the chemical spraying on the planted seedling can be appropriately performed, and a good seedling transplanting operation can be performed.

  FIG. 10 is a partial cross-sectional rear view of the left and right pressure-reducing wheels 84. This seedling transplanter drives and rotates the pressure-reducing wheel 84 with the electric motor 150 having a regenerative charging function, and the pressure-reducing wheel 84 is not driven. In some cases, the hybrid seedling transplanter functions as a generator for regenerative charging from the rotation of the pressure-reducing wheel 84 due to ground contact with the progress of the aircraft.

  That is, the electric motor 150 is fixed to the lower end portion of the pressure-reducing wheel support frame 85, and the pressure-reducing wheel 84 made of a synthetic resin having a hollow inside is mounted so as to enclose the electric motor 150. Reference numeral 151 denotes a synthetic resin lid that seals the inner cavity of the pressure wheel 84 so that dirt and water do not enter the pressure wheel 84.

  Next, the drive configuration of the pressure reducing wheel 84 by the electric motor 150 will be described. The drive gear 153 is mounted on the motor shaft 152 of the electric motor 150, the planetary gear 154 is disposed around the drive gear 153, and the planetary gear is arranged. 154 is meshed with a ring gear 155 formed inside the pressure reducing wheel 84. Therefore, rotational power is transmitted from the drive gear 153 mounted on the motor shaft 152 driven by the electric motor 150 to the ring gear 155 via the planetary gear 154, and the pressure reducing wheel 84 is driven and rotated by the electric motor 150. It has a configuration. That is, since the planetary gear drive system in which the rotation axis of the motor shaft 152 of the electric motor 150 and the pressure-reducing wheel 84 is coaxial, the drive structure of the pressure-reducing wheel 84 can be made compact and simple.

  In addition, the conducting wire connecting between the electric motor 150 and the battery mounted on the airframe is configured by forming the pressure-reducing wheel support frame 85 with a pipe material and wiring it through the inner space of the pressure-reducing wheel support frame 85. Therefore, it is possible to prevent damage to the wiring during work, and when the wiring is exposed, it may come into contact with or get entangled with the seedlings that are planted. Can be transplanted.

  On the other hand, when the electric motor 150 functions as a regenerative charging function (generator), the grounded pressure-reducing wheel 84 rotates as the airframe advances, and the rotation rotates via the ring gear 155, the planetary gear 154, and the drive gear 153. Then, the motor shaft 152 is rotated, and the electric motor 150 generates power to charge the battery. The electric motor 150 is operated by turning on the operation switch 156 disposed in the vicinity of the steering handle 2 to drive the pressure reducing wheel 84, and the electric motor 150 is deactivated by turning the operation switch 156 off. The battery is charged by acting as a function (generator).

  Accordingly, when the field is wet and the field conditions are poor, the electric motor 150 is actuated by operating the operation switch 156 to drive the pressure reducing wheel 84, and the pressure reducing action is made appropriate, and the aircraft propulsion force is reduced. Appropriate seedling transplanting work can be performed by acting as an auxiliary to cover a decrease in propulsive force due to slip of the left and right rear wheels 7.

  When the field conditions are good or when transplanting seedlings on a downward slope, the electric motor 150 is deactivated by turning off the operation switch 156 to act as a regenerative charging function (generator) to charge the battery.

  In this way, by using a hybrid seedling transplanter with increased energy use efficiency, field adaptability is improved and appropriate seedling transplanting work can be performed, and a fuel-efficient seedling transplanting machine can be obtained. Cost reduction.

  In addition, if the sensor which detects the planted seedling is provided and the pressure-reducing wheel 84 is driven by the electric motor 150 only when the pressure-reducing wheel 84 passes through the side of the seedling, the side of the seedling is reduced by the pressure-reducing wheel 84. Since the pressure-reducing wheel 84 is driven to rotate, the pressure-reducing force is increased and the pressure-reducing action of the seedling is increased, so that appropriate pressure-reducing can be performed and a good seedling transplanting operation can be performed. In addition, when passing between the seedlings, the electric motor 150 does not operate and enters a power generation action state, and energy regeneration can be performed.

Finally, another example of a sweet potato seedling transplanter will be described with reference to FIGS.
In this embodiment, the vehicle body is a four-wheel running configuration in which front wheels 206 and rear wheels 207 are mounted, and the vehicle height is changed by moving each axle 208, 209 up and down with respect to the axle brackets 210, 211 and changing clothes. The tread can be changed by moving the front wheel 206 and the rear wheel 207 to the left and right of the respective axles 208 and 209 so as to change the tread so as to correspond to the seedling planting work mode. An appropriate number of seedling shelves 212 for placing containers K containing sweet potato seedlings N are provided on the upper side of the body frame 203, and a seedling receiving base for placing the sweet potato seedlings N to be supplied onto the support frame 213 on the rear side. 214 is provided so that the inclination angle can be adjusted in a downward and downward inclination, so that the operator can supply the seedlings to the seedling planting 202 while taking out the seedlings one by one from the seedling receiving stand 214 so as to be clamped by the seedling planting seeds 202. It is composed. A gate-shaped support frame 215 is provided at the rear end of the vehicle body frame 203, and a steering handle 216 that protrudes rearward from both left and right ends is provided on the support frame 215, and an attachment hitch 217 for mounting the planting frame 205 is provided on the left and right sides. Install it so that it can move laterally.

  Here, the transplanting machine lowers the seedling transplanter 202 with respect to the vehicle body frame 203 by operating the planting handle 201 to perform the seedling planting action, and presses the pressure-reducing wheel 204 to press the seedling transplanter 202. It is set as the structure of the simple transplanter characterized by suppressing the soil surface by which the seedling was planted by. When the operator depresses the planting handle 201 while driving while intermittently propelling the vehicle body frame 203, the seedling planter 202 that has received the seedling descends to form a planting hole of a predetermined depth on the soil surface. At the same time, plant the root of the seedling in this planting hole. Immediately after this seedling planting action, the pressure wheel 204 is pressed to suppress the soil surface outside the planting hole and fill the planting hole to support and stabilize the seedling planting posture.

  The planting frame 205 having the planting handle 201, the seedling planting basket 202, and the pressure-reducing wheel 204 is provided so as to be movable in the left-right direction with respect to the vehicle body frame 203. When the seedling planting position is moved in the horizontal direction with respect to the vehicle body frame 203 and the wheel position, the planting handle 201, the seedling planting 202, the pressing wheel 204, and the like are constructed. By laterally moving the frame 205, the planting position can be offset or the planting strip interval can be changed.

  The mounting hitch 217 can be loosened and tightened by operating the bolt handle 218 and moved laterally with respect to the support frame 215 to set the seedling planting strip position and to the rear with respect to the support frame 215. It is possible to adjust the seedling planting posture of the seedling planting basket 202 by rotating and changing the rearward descending inclination angle. The mounting hitch 217 is provided with a planting frame 205 that guides the base of a planting handle 201 having a seedling planting basket 202 up and down. Further, an upper spring 219 for repelling the planting handle 201 to the ascending side and a stopper 220 for stopping the ascending return position of the planting handle 201 can be adjusted by changing the vertical position by a bolt handle. Provided. In addition, a pressure-suppressing arm 222 having a pressure-reducing wheel 204 supported by a shaft 221 is supported 223 at the lower end of the planting frame 205 so as to be rotatable up and down. In addition, a grounding roll 224 is supported by a roll arm 225 on the lower front portion of the planting frame 205 so as to be freely rollable. When the vehicle is moving forward, seedling planting 202 is applied to the soil surface suppressed by the grounding roll 224 to cause seedling planting, and the soil surfaces on both the left and right sides of the seedling planting position are suppressed by the rear suppression wheels 204. Then, the seedling planting hole mark is filled to stabilize the seedling planting posture. Such a planting frame 205 is provided so that the vertical movement can be adjusted by rotating the bolt handle 226 with respect to the mounting hitch 217, and the mounting height of the seedling planting tub 202, the pressure wheel 204, and the like is adjusted. Can do.

  The seedling planting tub 202 attached to the planting handle 201 opens and closes by opening and closing the open / close lever 227 provided on the grip portion of the handle 201 against the spring 228, and grips the open / close lever 227 at the raised position. Then, the sweet potato seedlings N are supplied in a state where the seedling transplanter 202 is opened, and when the grasping operation is released, the seedling transplanter 202 is closed and the sweet potato seedlings N are held. Then, when the seedling planter 202 moves down and enters the soil, the operator holds the open / close lever 227 and opens the seedling planter 202 forward and backward to plant the seedlings. When the gripping operation of the opening / closing lever 227 is stopped, the seedling planting 202 is closed by the spring 228.

  A pressure-reducing wheel 204 is provided at the rear end portion of the pressure-reducing arm 222 so as to be able to move back and forth by a shaft support portion 221. The shaft support portion 221 supports a rod 230, and the upper end portion of the rod 230 is attached to a planting handle. The guide ring 231 of 201 is fitted and supported. A spring 233 is fitted between the guide ring 231 and the seat 232 below the rod 230. When the planting handle 201 is pushed down to lower the seedling planting tub 202 to perform seedling planting, the rod 230 is pressed via the spring 233 in this lowering operation area, and the pressure reducing wheel 204 is pressed against the soil surface. To do. The descending of the seedling culvert 202 and the pressure wheel 204 is often different depending on the hardness of the soil surface, the formation depth of the planting hole, and the like, and such an operation difference is absorbed by the spring 233.

  Reference numeral 280 denotes a water supply pump of the irrigation apparatus, the base portion of which is fixed to the planting frame 205, and the piston 280a thereof is arranged upward. The upper end of the piston 280a comes into contact with the frame portion 201a by a downward operation of the planting handle 201, and the piston 280a is moved downward by the downward operation of the planting handle 201 to feed water. It has a configuration. Reference numeral 280b denotes a return biasing spring that returns the piston 280a to move up.

  Accordingly, since the frame portion 201a is directly operated by the downward movement operation of the planting handle 201 at the upper end of the piston 280a of the water supply pump 280 of the irrigation apparatus, the irrigation timing and the planting timing coincide with each other with a simple configuration. Irrigation of various seedlings can be performed and a good transplanting operation can be performed. Further, by changing the mounting position of the water pump 280 base to the planting frame 205 in the vertical direction, the position where the upper end position of the piston 280a contacts the frame 201a of the planting handle 201 can be changed, Irrigation timing can be adjusted easily and appropriately.

  Reference numeral 281 denotes a water tank of the irrigation apparatus, which is placed between the front wheels 206 and the rear wheels 207 in a side view of the machine body and on a vehicle body frame 203 at the left and right center of the machine body in a plan view. The water pump 280 sucks out the water in the water tank 281 through the water supply pipe 282, and when the seedling planter 202 plantes seedlings in the field through the irrigation pipe 283, The water is discharged and the sweet potato seedlings N are irrigated.

  Accordingly, the water tank 281 has a large variation in weight because the amount of water in the water tank 281 varies greatly due to irrigation due to transplanting work, but the water tank 281 having a large weight variation is viewed from the side of the fuselage in front view 206 and rear wheels. Since it is placed on the body frame 203 between the right and left central parts of the aircraft in plan view, the influence of the weight fluctuation on the aircraft can be minimized, and the aircraft exhibits good running performance and good seedling transplantation Work can be done.

  The seedling planting operation is performed while the front wheel 206 and the rear wheel 207 are positioned in the groove B between the ridges A and guided. The vehicle body traveling is a planting mode when intermittent traveling is stopped by propelling by the steering handle 216 and moving forward at regular intervals to stop and planting seedlings by operating the planting handle 201 at the time of stopping. When the operator picks up a seedling on the seedling receiving stand 214 and holds it in the seedling planting tub 202 and pushes down the planting handle 201, the seedling planting tub 202 is inserted into the heel surface A. When the open / close lever 227 is pulled, the seedling planting tub 202 is opened and the seedling that has been sandwiched is released and planted. At the end of the pressing operation of the planting handle 201, the pressure wheel 204 is pressed through the spring 233 so that the right and left sides of the heel surface A on the rear side of the planting hole are pressed down so that soil can be easily cultivated. If the pressing of the planting handle 201 is released here, the seedling planter 202 is lifted by the lifting spring 219, returns to the position of the stopper 220, and stops. At this time, the steering wheel 216 is changed to the front steering wheel 216, and the vehicle body is propelled to the front F by a predetermined interval to stop and the next seedling planting action is performed. At the time of intermittent propulsion at this time, the grounding roll 224 presses the ridge surface A just before planting the seedling and leveles it to a certain level, and suppresses the soil on both the left and right sides of the planting hole just after planting the seedling. The soil is crushed so as to be buried back to the seedling root side by the ring 204 to support and stabilize the seedling planting posture. When the planting handle 201 is pushed down, the pressure-reducing wheel 204 is once pushed to a suitable depth below the heel A, but when the planting handle 201 is returned upward, the pressure-reducing pressure of the pressure-reducing wheel 204 is released. Therefore, a normal suppression action is performed. For this reason, when it is difficult to cultivate due to conditions such as the ridge surface A being hard, the pressure wheel 204 is strongly pressed during the pressing operation of the seedling planting handle 201 and is pressed so as to bite into the ridge surface A. Thus, the soil culturing action of the seedling planting hole by the pressure-reducing wheel 204 at the time of vehicle body propulsion can be effectively performed.

2 Steering handle 4 Traveling device 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 rear wheels 23 Machine frame 26 Seedling housing part 32b Driving seedling planting body 6 Mechanism 120 Seat 121L (Left) Rear frame 121R (Right) Rear frame 123L Left rear idler wheel 123R Right rear idler wheel 125 畝 Guide wheel device 128 Electric motor 130 Guide wheel (wheel)
131 Operation switch 132L Left auxiliary seat 132R Right auxiliary seat 133L (Left) Seedling storage body 133R (Right) Seedling storage body C Seedling transport direction D 畝
N seedling (sweet potato seedling)

Claims (8)

  In a seedling transplanting machine provided with a seedling transporting section (5) and a seedling transplanter (6) for taking out the seedling transported by the seedling transporting section (5) and planting it on a farm field in a traveling device (4), the seedling transporting section In (5), a plurality of seedling storage portions (26) for storing the seedlings (N) in a posture facing in the front-rear direction are provided in the seedling transport direction (C), and the seedling storage portions (26) are arranged on one side in the left-right direction on the upper body side. An upper lateral feed part (5a) that moves toward the side and a lower lateral feed part (5c) that moves toward the other side in the left-right direction on the lower side of the body are provided, and the seedling planting body (6) is placed in the left-right direction A plurality of seedling planting bodies (6) are arranged at intervals, and the plurality of seedling planting bodies (6) take out seedlings from the seedling storage part (26) of the lower lateral feeding part (5c) and plant them in the field. The seat (120) on which the operator is seated facing the upper lateral feed section (5a) of the seedling transport section (5) is the outermost left and right sides in front of the machine body Seedling transplanter, characterized in that provided between some the plurality of planting bodies (6).   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 claim 1, wherein the seedling container (26) is moved along a loop-shaped movement 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 in the loop-shaped movement path of (1) or (2). Seedling transplanter.   The seat (120) is provided on the frame (121L) after the base portion is attached to the fuselage, and the wheel (130) is provided below the seat (120). The seedling transplanter according to Item.   The wheel (130) provided below the seat (120) is a guide wheel (130) of a saddle guide wheel device (125) that rolls in a saddle groove between adjacent saddles (D). 4. The seedling transplanter according to 4.   The wheel or guide wheel (130) is driven by an electric motor (128), and an operation switch (131) for switching the electric motor (128) between an operating state and a non-operating state is provided. Or the seedling transplanter of Claim 5.   The rear frame (121L, 121R) is provided with left and right rear idler wheels (123L, 123R) positioned behind the left and right rear wheels (7) so as to be rotatable, and an upper lateral feed portion ( The seedling transplanter according to any one of claims 4 to 6, further comprising left and right auxiliary seats (132L and 132R) positioned on the left and right sides of 5a).   The seedling transplanter according to any one of claims 1 to 7, wherein a seedling storage body (133L, 133R) is provided on a side of the seat (120).

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