JP2005295967A - Transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a single seedling-transplanting tine to easily carry out a series of operations from the taking out of seedlings to the transplantation of the seedlings, and to enable the seedlings taken out from a seedling-carrying platform by a seedling-transplanting tine to be transplanted in good accuracy. <P>SOLUTION: The subject transplanter has the seedling-transplanting tines 16 for taking out the cell-shaped seedlings N stored in a seedling tray 15 put on the seedling-carrying platform 14, and transplanting the taken out seedlings N, and a seedling-pushing out member 72 for pushing out the seedlings from the transplanting tine when transplanting the seedlings. The first rotary member 17 rotating by using a center rotary shaft in the right and left direction as the center, and the second rotary members 18 having the base terminals connected to output shafts 39 at both terminals of the first rotary member 17 are installed. The seedling-transplanting tines 16 are attached to the output shafts 49 at the tips of the second rotary members 18 so that the fulcrum parts of the seedling-transplanting tines 16 may be moved so as to draw nearly triangle loci K, and the tips of the seedling-transplanting tines 16 may be swung by centering the fulcrum parts to move the tips of the seedling-transplanting tines 16 so as to draw the seedling-transplanting loci A. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a transplanter in which seedlings such as onions, leaf onions, and white onions taken out from a seedling tray by seedling planting nails are directly planted in a field.

  Conventionally, a seedling removal nail and a seedling planting nail that transfer seedlings from one seedling tray of a seedling stand with one seedling extraction nail to one seedling planting nail and plant one seedling There is a transplanter (for example, refer to Patent Document 1).

Japanese Patent Laid-Open No. 2001-211713

  However, in the case of the transfer method as described above, not only the driving of the seedling picking nails and the seedling planting nails are required, but also the structure is extremely complicated because it is necessary to synchronize them. When the seedlings are handed over to the nail, there is a problem in that the seedling posture is disturbed, and the disturbance becomes particularly noticeable as the speed increases, thereby reducing the seedling placement accuracy. In addition, there is a technique for performing a series of planting operations from taking out seedlings to planting seedlings with a single seedling planting nail. In this technique, when the seedling planting nail enters the soil, In order to prevent the raising of the seedling by extruding the seedling reliably, and to forcibly remove this soil so as not to adversely affect the next seedling removal even if soil adheres to the seedling planting nails, It is provided so that it can be moved up and down along the nail, and the seedling sandwiched between the seedling planting nails is pushed out, but the moving direction of the seedling pushing member and the direction of the seedling sandwiched between the planting nails are substantially the same. For this reason, seedlings may be bent by the seedling extruding member during planting, resulting in poor planting posture.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

  That is, in claim 1, a cell-molded seedling stored in a seedling tray placed on a seedling mount is taken out and planted in a field, and a seedling is pushed out from the seedling planting nail at the time of seedling planting. A transplanter including a seedling extruding member, a first rotary member that rotates about a central rotation shaft in the left-right direction, and a second rotary member that connects proximal ends to output shafts at both ends of the first rotary member; The seedling planting claw is attached to the output shaft at the tip of the second rotary member, and the fulcrum portion of the seedling planting claw is moved along a substantially triangular locus K.

  In Claim 2, the said seedling pushing member is arrange | positioned inside the seedling planting nail | claw.

  In Claim 3, the said seedling pushing member is made to incline with respect to a seedling planting nail.

  According to a fourth aspect of the present invention, the seedling extruding member has a bifurcated tip.

  As effects of the present invention, the following effects can be obtained.

  In Claim 1, the seedling planting nail which takes out the cell-molded seedling stored in the seedling tray placed on the seedling placing stand and is planted in the field, and the seedling extrusion which extrudes the seedling from the seedling planting nail at the time of seedling planting A first rotary member that rotates about a central left-right rotation shaft, and a second rotary member that connects base ends to output shafts at both ends of the first rotary member. Since the seedling planting claw is attached to the output shaft at the tip of the second rotary member and the fulcrum portion of the seedling planting claw is moved along the locus K having a substantially triangular shape, At the time of taking out the seedling, the seedling planting claw can be plunged well without damaging the seedling with the seedling planting nail, and the seedling can be smoothly extracted without disturbing the seedling above the seedling tray, thereby improving the seedling picking accuracy. Further, at the time of one rotation of the first rotary member, it is possible to easily perform high-speed planting work by performing seedling planting twice with two seedling planting claws via the second rotary member.

  In Claim 2, since the seedling pushing member which extrudes the cell molding seedling clamped by the said seedling planting nail is arrange | positioned inside the seedling planting nail, the moving direction of the seedling pushing member and the planting nail Since the direction of the cell-molded seedling sandwiched between the two is not shifted and the cell-molded seedling is not bent by the seedling pushing member, it is possible to easily enable seedling planting with good accuracy without a planting posture defect. Moreover, durability can be improved by protecting the seedling extruding member on the inside of the seedling planting nail.

  In claim 3, since the seedling extruding member is inclined with respect to the seedling planting nail, the stem and leaf part of the cell-molded seedling that sandwiches the root pot portion with the seedling planting nail when the seedling is taken out Since it will be located on the seedling extruding member, it is possible to prevent the cell molded seedling from being damaged by the seedling extruding member. Further, since the cell-molded seedling can be extruded from the seedling planting claws by pressing the root pot portion with the seedling extruding member with certainty, seedling planting accuracy can be improved.

  According to claim 4, since the tip of the seedling extruding member is formed in a bifurcated shape, the deposits such as soil adhering to the inner surface of the seedling planting claw are also well removed at the time of seedling planting to improve seedling extraction accuracy. Can be made.

Next, embodiments of the invention will be described.
FIG. 1 is a side view showing an overall configuration of a transplanter according to an embodiment of the present invention, FIG. 2 is a side view of a planting part, FIG. 3 is a side view of a seedling planting claw part, and FIG. Cross-sectional view of the case, FIG. 5 is a driving explanatory view of the seedling planting claw, FIG. 6 is an explanatory diagram of the swing cam portion, FIG. 7 is an explanatory diagram of the groove cam portion, FIG. 9 is an explanatory view of a seedling pushing member, FIG. 10 is an explanatory view of a locus of a seedling planting nail, FIG. 11 is a side explanatory diagram of a rotary case, FIG. 12 is a side explanatory diagram of a seedling planting nail, and FIG. FIG. 14 is an explanatory diagram of 45 ° and 225 ° positions of a seedling planting claw, FIG. 15 is an explanatory diagram of 90 ° and 270 ° positions of a planting claw, and FIG. 16 is an explanatory view of 135 ° and 315 ° positions of the seedling planting claws.

  As shown in FIGS. 1 and 2, the moving vehicle body 1 of the transplanter has a frame extending in the front-and-rear direction, the engine 2 is mounted on the rear portion of the moving vehicle body 1, and the steering wheel is formed in the lower front portion. The front wheel 3 is supported and the rear wheel 4 is supported at the rear lower part. A transmission case 5 is disposed at the rear of the moving vehicle body 1, and power is transmitted from the output shaft of the engine 2 through the transmission case 5 to drive the rear wheels 4. A driving operation unit 6 is provided on the front portion of the moving vehicle body 1, and a driver's seat 8 is disposed on the steering handle 7 and the rear thereof. A reserve seedling stand 9 is arranged above the center of the moving vehicle body 1 in the front and rear, and a seedling planting device 10 is arranged therebelow. The seedling planting device 10 can be moved up and down via an elevating mechanism, and the elevating mechanism is configured by arranging the front and rear elevating links 11 and 12 and the elevating cylinder 13 on the lower side of the center of the movable vehicle body 1. The seedling planting apparatus 10 is a seedling planting system that takes out a cell-molded seedling N for one strain from a seedling stage 14 that reciprocates left and right and a seedling tray 15 on the seedling stage 14 and directly transplants the seedlings N on a farm surface. The nail | claw 16 is provided, and it is comprised so that the cell shaping | molding seedling N may be transplanted on a collar surface for every fixed interval, running a vehicle body. The seedling stage 14 is configured to reciprocate via a lateral feed screw shaft 25, a guide roller 26, and the like, and a seedling tray 15 is placed on the seedling stage 14. The seedling tray 15 forms concave portions (pots) in the shape of a grid, fills each concave portion with soil, and seeds the seedling tray 15 to grow cell-shaped seedlings N.

  As shown in FIG. 3, the seedling planting claws 16 are used for taking out and planting the cell-molded seedlings N with respect to one seedling tray 15 by two seedling planting claws 16. The seedlings are planted twice in one planting trajectory A, and two cell-shaped seedlings N are planted, and the seedling planting speed is increased approximately twice. It is configured to perform high-speed planting work.

  As shown in FIGS. 3 to 12, the seedling planting apparatus 10 includes a second rotary case 18, a claw case 57, and a planting claw 16 on both sides of the first rotary case 17. 4 is provided with a swing groove cam 19 (see FIG. 4) for swinging the seedling planting claw 16. The seedling planting claw 16 has left and right claw bodies 20 and 21 which are opened and closed by rotating the opening and closing cam 22 (see FIG. 8), and the cell-molded seedling N held by the left and right claw bodies 20 and 21 is pushed by an extrusion mechanism 23. It is configured to extrude. The pushing mechanism 23 is driven by the rotation of the seedling pushing cam 24.

  As shown in FIGS. 4 and 5, the first rotary case 17 is attached to a fixed bracket 27 of the vehicle body via a drive receiving shaft 28, and the outer cylindrical shaft 32 and the planting input shaft 31 are attached to the drive receiving shaft 28. And a sprocket 29 is fixed to one end of the planting input shaft 31. And it is set as the structure which transmits motive power from the planting mission case to the sprocket 29 via the chain 30. On the other hand, the outer cylinder shaft 32 is spline fitted to the other end of the planting input shaft 31, and one end side of the outer cylinder shaft 32 is fixed to the center of the first rotary case 17. A sun gear 38 is loosely fitted on the outer cylindrical shaft 32 in the first rotary case 17, and one end of the sun gear 38 is engaged with the drive receiving shaft 28 or fixed to the body side. The sun gear 38 is engaged with idle gears 42 and 42 loosely fitted on intermediate shafts 41 and 41 supported by the first rotary case 17 on both sides thereof.

  Further, output shafts 39 and 39 are rotatably supported at both ends of the first rotary case 17, and a planetary gear 40 is integrally provided on the output shaft 39 in the first rotary case 17, and the idle gear 42 is attached to the planetary gear 40. Are engaged. The gear ratio between the planetary gear 40 and the sun gear 38 connected to the planetary gear 40 via the idle gear 42 is formed to be 1: 3, and the output shaft is rotated when the first rotary case 17 makes one rotation in one direction. 39 is configured to rotate twice in the reverse direction.

  In FIG. 4, the second rotary case 18 is disposed on the right side of the first rotary case 17, and one end side of the second rotary case 18 is fixed to the output shaft 39. A claw output shaft 43 is rotatably inserted into the output shaft 39, and a fan-shaped portion formed on one end side of the swing arm 44 is formed on a gear 43a formed on one end of the claw output shaft 43 as shown in FIG. The gear 45 is engaged. The swing arm 44 is supported on the first rotary case 17 via a fulcrum shaft 46 so as to be swingable, and a roller 47 is rotatably supported on the other end side of the swing arm 44 so that the drive receiving A roller 47 is fitted and guided in an endless groove cam 19 formed on the shaft 28 with the input shaft 31 as a substantial center.

  Further, a sun gear 48 is fixed on the claw output shaft 43 disposed so as to face the second rotary case 18, and the sun gear 48 is allowed to freely rotate on an intermediate shaft 51 supported substantially at the center of the second rotary case 18. The fitted first idle gear 52 is engaged. Further, the first idle gear 52 is meshed with an output gear 50 which is a planetary gear formed at one end of a swing shaft 49 rotatably supported at the other end of the second rotary case 18. An output gear 54, which is a planetary gear, is provided at one end of a cam shaft 53 that is rotatably inserted on the axial center side of a swing shaft 49 configured in a pipe shape, and the output gear 54 is integrated with the first idle gear 52. The second idle gear 55 is configured to be meshed. Thus, the swinging shaft 49 and the cam shaft 53 can be driven simultaneously from the claw output shaft 43.

  The sun gear 48, the first idle gear 52, the second idle gear 55, and the output gear 54 have the same number of teeth, and the gear ratio of the first idle gear 52 and the output gear 50 is 2: 3. 50 and the output gear 54 of the camshaft 53 is set so that the rotation difference is one rotation. When the seedling planting claw 16 connected to the swing shaft 49 is swung, the camshaft 53 is always moved with respect to the seedling planting claw 16. In the state of constant rotation, the groove cam 19 has a reasonable shape, and the opening / closing cam 22 and the seedling push cam 24 fixed to the cam shaft 53 are smoothly rotated.

  As shown in FIG. 10, the second rotary case 18 is rotated clockwise about the claw output shaft 43 with respect to one rotation of the first rotary case 17 about the input shaft 31 in the counterclockwise direction (solid arrow direction). As shown by K in FIG. 10, the camshaft 53 serving as a fulcrum portion of the seedling planting claw 16 is rotated twice in the direction of the broken line arrow and rotated once by the first rotary case 17 (two rotations of the second rotary case 18). A substantially triangular planting basic locus K is drawn.

  Further, as shown in FIGS. 5 and 8, a claw case 57 is disposed on the right side of the second rotary case 18, and the claw case 57 is fixed to one end side of the swing shaft 49 supported by the second rotary case 18. . As shown in FIGS. 8 and 12, the claw case 57 supports left and right opening and closing shafts 58 and 59 in a direction perpendicular to the cam shaft 53. The left and right open / close shafts 58 and 59 protrude upward from the claw case 57 in FIG. Further, left and right opening / closing plates 60 and 61 are fixed to the other side (lower part) of the left and right opening / closing shafts 58 and 59 so as to protrude to the left and right center sides, respectively, and engaged at the center. A recess is formed in the claw case 57, the opening coil spring 62 is accommodated in the recess, and the other side of the opening coil spring 62 is brought into contact with one open / close plate 61. That is, an opening coil spring 62 is interposed between the opening / closing plates 60 and 61 and the claw case 57, and the opening / closing plates 60 and 61 are pushed by the biasing force of the opening coil spring 62 to open the claw bodies 20 and 21. Energized. Further, one (left) opening / closing shaft 58 is provided with an opening / closing operation plate 63 protruding from the other (left) opening / closing plate 60 so as to contact the tip of the intermediate member 64. .

  Further, the cam shaft 53 is projected from the swing shaft 49 into the claw case 57, and the plate-like opening / closing cam 22 and a seedling push-out cam 24, which will be described later, are fixed in parallel on the cam shaft 53. An intermediate member 64 is disposed between the opening / closing operation plate 63. The intermediate member 64 is slidably supported on the claw case 57, one end side of the intermediate member 64 is brought into contact with the opening / closing operation plate 63, and the other end side is brought into contact with the outer peripheral surface of the opening / closing cam 22. . The opening / closing cam 22 has a large-diameter portion and a small-diameter portion, and the claws 20 and 21 are opened when one end of the intermediate member 64 is in contact with the small-diameter portion.

  In such a configuration, when the opening / closing cam 22 is rotated by the rotation of the cam shaft 53 and the intermediate member 64 is brought into contact with the large diameter portion, the intermediate member 64 is pushed and slid toward the claws 20 and 21 side. Then, the opening / closing operation plate 63 is pushed by the sliding of the intermediate member 64 to rotate the left opening / closing shaft 58, and the left claw body 20 fixed to the left opening / closing shaft 58 rotates counterclockwise. By this rotation, the left opening / closing plate 60 also rotates to push the right opening / closing plate 61, the right opening / closing shaft 59 rotates, and the right claw body 21 fixed to the right opening / closing shaft 59 rotates clockwise. Thus, the claws 20 and 21 can be closed, and the cell molded seedling N can be held. When the cam shaft 53 rotates in the opposite direction from this state, the intermediate member 64 contacts the small diameter portion from the large diameter portion by the rotation of the opening / closing cam 22. At this time, since the right opening / closing plate 61 is constantly urged in the opening direction by the urging force of the opening coil spring 62, the right claw member 21 is rotated counterclockwise by being pushed by this urging force. When the left opening / closing plate 60 is pushed, the left nail body 20 rotates clockwise, and the nail bodies 20 and 21 open.

  A seedling extruding member 72 for extruding the cell-molded seedling N is disposed between the left and right claws 20 and 21, and the seedling extruding member 72 is reciprocally driven by the extrusion mechanism 23. As shown in FIGS. 8, 9, and 12, the seedling extruding member 72 has a distal end portion 72b formed in a bifurcated shape to form a Y shape in plan view, and a base end portion 72a formed in a ring shape on the other end. Provided. Then, a shaft 65 fixed to the distal end of the extrusion arm 66 is inserted into the base end portion 72a so that the seedling extrusion member 72 is pivotally supported by the extrusion arm 66, and the base side of the other end of the extrusion arm 66 is attached to the claw case 57. The supported arm shaft 67 is pivotally supported. The arm shaft 67 is disposed in parallel with the cam shaft 53, and the left and right claws 20, 21 are disposed on the opposite side with respect to the cam shaft 53. A spring 70 is interposed as an elastic member between the push arm 66 and the claw case 57 and is fitted on the arm shaft 67. The push arm 66 is moved toward the left and right claws 20 and 21 by the biasing force of the spring 70. It is energized to rotate. A protrusion 66 a that protrudes toward the cam shaft 53 is formed at the base end of the push arm 66.

  On the other hand, on the camshaft 53, the seedling push cam 24 is fixedly provided on the outer side of the opening / closing cam 22 so as to face the convex portion 66a, and the convex portion 66a is brought into contact with the outer peripheral surface of the seedling push cam 24. ing. The seedling push cam 24 has a large diameter portion and a small diameter portion. When the convex portion 66 a is in contact with the large diameter portion, the push arm 66 is rotated to the retracted position, and the seedling push cam 24 rotates by the rotational action. When the portion 66a comes into contact with the small diameter portion of the seedling push cam 24, the pushing arm 66 is rotated to the left and right claws 20/21 by the biasing force of the spring 70, and the seedling push member 72 is moved to the left and right claws 20/21. Advancing and sliding along. Thus, the seedling pushing member 72 can be reciprocated by the rotation of the seedling pushing cam 24.

  The seedling extruding member 72 is made of an elastic member such as rubber or a resin material, and the tip portion 72b is formed in a bifurcated shape with the tip side open, and is disposed between the left and right nails 20 and 21, and the tip portion 72b The tip is in sliding contact with the inside of the left and right claws 20 and 21.

  Then, in FIG. 12, if the vertical center line L1 of the left and right nail bodies 20, 21 is positioned in the horizontal direction, the center line L2 of the seedling pushing member 72 is inclined downward (on the nail case 57 side). In addition, the intersection of the center lines L1 and L2 is configured to be positioned at the tips of the left and right claws 20 and 21. With this configuration, when the root pot portion of the cell molded seedling N is sandwiched between the left and right nail bodies 20 and 21, the stem and leaf portions are the seedling extruding member 72 while the cell molded seedling N is positioned horizontally. Since the center line of the left and right nail bodies 20 and 21 and the center line of the cell molded seedling N are substantially coincident with each other, the posture of the cell molded seedling N is not collapsed when transported. is there. When the seedling extruding member 72 is pushed out by sliding on the ridge, the tip 72b of the seedling extruding member 72 just comes into contact with the root pot portion and can be transplanted accurately.

  In addition, as shown in FIG. 12, the position of the midway portion in the longitudinal direction of the seedling extruding member 72 is regulated by a guide 75. That is, the guide 75 is attached to the nail case 57 at the rear portion (on the opposite side to the left and right nail bodies 20 and 21) of the seedling planting nail 16. The upper part of the guide 75 is formed in an annular shape matching the outer shape of the rod part on the base side of the seedling pushing member 72, and the rod part on the base side of the seedling pushing member 72 is inserted. The lower part of the guide 75 is formed as a male screw, and is screwed into the upper part of the claw case 57 so as to be fixed by a lock nut 76 so that the height can be adjusted. That is, by adjusting the height of the guide 75, the inclination angle of the center line L2 of the seedling pushing member 72 can be adjusted. In this way, when the seedling pushing member 72 is slid, the top, bottom, left, and right are regulated by the guide 75 so that the seedling is pushed out reliably without being displaced. When the seedling extruding member 72 is moved downward, the tip end portion 72b of the seedling extruding member 72 slides along the inner surfaces of the left and right nail bodies 20 and 21, so that the nail body 20 is simultaneously extruded with the cell molded seedling N being extruded.・ Can remove soil and soil adhering to the inner surface of 21.

  In the configuration as described above, the seedling stage 14 is slid back and forth in the left-right direction via the guide roller 26 and the like, the seedling tray 15 is held in a substantially vertical position near the extraction position, and the opening extraction side of the seedling tray 15 is The cell-molded seedling N is taken out by placing the seedling planting claws 16 located behind and placed behind the seedling mounting table 14 into the pot of the seedling tray 15 substantially horizontally from the lower rear side. At this time, as shown in FIGS. 3, 10, 13 to 16, when the first rotary case 17 makes one rotation counterclockwise (solid arrow direction) around the input shaft 31, the second rotary case 18 is The output shaft 43 is rotated twice in the clockwise direction (the direction of the broken arrow). During this rotation, as shown in FIG. 6, a roller 47 provided at one end of the swing arm 44 is fitted to the swing groove cam 19 provided in the receiving shaft 28 of the first rotary case 17 so as to be freely rotatable. The swing arm 44 is swung around the fulcrum shaft 46, and the gear 43a meshing with the partial gear 45 provided at the other end of the swing arm 44 is rotated. By this rotation, the sun gear 48 of the claw output shaft 43 rotates the first idle gear 52 and the second idle gear 55, and the claw case 57 is swung by the output gear 50 meshed with the first idle gear 52, so The pawl 16 swings. The rotation locus of the cam shaft 53 at this time is a substantially triangular basic locus K as shown in FIG. 3, and the rotation locus of the tip of the seedling planting claw 16 is a seedling planting locus A.

  More specifically, when one seedling planting claw 16A of the two seedling planting claws 16A and 16B is inserted into the concave portion of the seedling tray 15, as shown in FIG. In this state, the left and right claws 20 and 21 are inserted in an open state. At this time, the first rotary case 17 and the second rotary case 18 are aligned in a horizontal line on a straight line. When the tip of the first rotary case 17 rotates downward, the second rotary case 18 moves in a reverse direction (backward) in a substantially horizontal direction because the second rotary case 18 rotates in the reverse direction. Is prevented from falling in contact with the seedling tray 15 or the like. At this time, the claw bodies 20 and 21 are closed by the rotation of the opening / closing cam 22, and the seedling planting claws 16A grasp the root pot of the cell-molded seedling N and extract the cell-molded seedling N from the seedling tray 15 as shown in FIG. .

  Then, by the downward rotation of the first rotary case 17 and the rotation of the second rotary case 18, the seedling planting claws 16A gradually change their postures downward as shown in FIG. Then, as shown in FIG. 16, at the position where the seedling planting claw 16 </ b> A is oriented in the vertical direction, the claw bodies 20 and 21 are opened by the rotation of the opening / closing cam 22, and at the same time, the pushing arm 66 is moved by the rotation of the seedling pushing cam 24. It rotates and slides the seedling extruding member 72 toward the claws 20 and 21 to push out the cell-molded seedling N onto the field. Since the bifurcated tip 72b of the seedling extruding member 72 is disposed in contact with the inner surface of the claw body 20, 21, the soil adhered to the inner surface of the claw body 20, 21 when the seedling extruding member 72 reciprocates. Etc. can be rubbed off, and adhesion of soil etc. can be prevented.

  Then, as the first rotary case 17 is rotated upward, the second rotary case 18 is also rotated, and the seedling planting claws 16A are directed from the substantially lower side to the slightly lower rear side as in the seedling planting claws 16B of FIG. It rises as it is. Thus, by raising the seedling planting claw 16 while facing the vertical direction, the planting posture of the cell-molded seedling N does not change, and it is possible to prevent the seedling planting claw 16 from being tilted by the rotation of the seedling planting claw 16. is there. At this time, the first rotary case 17 is rotated halfway, and the second rotary case 18 is rotated approximately once. The seedling extruding member 72 is returned to the original position by the rotation of the seedling extruding cam 24 at the position where the seedling planting claws 16A are sufficiently lifted.

  Further, the first rotary case 17 rotates so that the seedling planting claws 16A gradually turn in the horizontal direction from the vertically oriented state as in the seedling planting claws 16B in FIGS. Returning to the original position, the first rotary case 17 rotates once and the second rotary case 18 rotates twice.

  As described above, the transplanting machine of the present invention takes out the cell-molded seedling N stored in the seedling tray 15 placed on the seedling stage 14 and transplants it into the field, and the seedling planting claws 16 and seedlings at the time of seedling planting. A seedling extruding member 72 for extruding seedlings from the planting claws 16; a first rotary case 17 that rotates about a planting input shaft 31 in the center left-right direction; and output shafts 39 at both ends of the first rotary case 17 A second rotary case for connecting the base ends, the seedling planting claw 16 is attached to the swing shaft 49 at the tip of the second rotary case 18, and the fulcrum portion of the seedling planting claw is a substantially triangular locus K Therefore, when the seedlings are taken out by the seedling planting claws 16, the seedling planting nails 16 are plunged well without damaging the cell-molded seedlings N with the seedling planting nails 16, and above the seedling tray 15. Cell molding smoothly without disturbing the cell molding seedling N It can be improved seedling precision withdrawn N. Further, at the time of one rotation of the first rotary case 17, two seedling planting claws 16 through the second rotary case 18 are used to plant seedlings twice so that high-speed planting work can be easily performed.

  Further, a seedling extruding member 72 for extruding the seedling sandwiched between the seedling planting nails 16 is disposed inside the left and right nails 20 and 21 of the seedling planting nails 16, and the moving direction of the seedling extruding member 72 and the seedlings are arranged. The orientation of the cell-molded seedling N sandwiched between the planting claws 16 is shifted to prevent the cell-molded seedling N from being bent by the seedling pushing member 72, and it is possible to easily plant seedlings with good accuracy without any planting posture failure. It can be made. Furthermore, durability can be improved by protecting the seedling extruding member 72 inside the seedling planting claws 16.

  Further, the seedling extruding member 72 disposed inside the seedling planting nail 16 is inclined with respect to the seedling planting nail 16, and the stem of the cell-molded seedling N having the root pot portion sandwiched between the seedling planting nails 16 at the time of seedling removal. The leaf portion is positioned on the seedling extruding member 72, so that the cell shaped seedling N can be prevented from being damaged by the seedling extruding member 72. Moreover, since the cell-shaped seedling N can be pushed out from the seedling planting claws 16 by reliably pushing the root pot portion with the seedling pushing member 72, the seedling planting accuracy can be improved.

  Furthermore, the tip of the seedling extruding member 72 is formed in a bifurcated shape, and dirt and other deposits adhering to the inner surfaces of the left and right nails 20 and 21 of the seedling planting claws 16 are removed well during seedling planting to remove seedlings. Accuracy can be improved.

The side view which showed the whole structure of the transplanter which concerns on one Example of this invention. The side view of a planting part. The side view of a nail | claw part with seedling planting. Sectional drawing of a rotary case. Drive explanatory drawing of a seedling planting nail. Explanatory drawing of a rocking cam part. Explanatory drawing of a groove cam part. Plane explanatory drawing of a planting nail | claw part. Explanatory drawing of a seedling extrusion member. Explanatory drawing of the locus | trajectory of a seedling planting nail. Side surface explanatory drawing of a rotary case. Side surface explanatory drawing of a seedling planting nail. Explanatory drawing of 0 degree and 180 degree position of a seedling planting nail. Explanatory drawing of the 45 degrees and 225 degrees position of a seedling planting nail. Explanatory drawing of the 90 degree | times and 270 degree position of a seedling planting nail | claw. Explanatory drawing of 135 degrees and 315 degrees position of a seedling planting nail.

Explanation of symbols

14 Seedling stand 15 Seedling tray 16 Nail with seedling 17 First rotary case (rotary member)
18 Second rotary case (rotary member)
72 Seedling Extrusion Member

Claims (4)

  Transplantation with cell-planted seedlings stored in a seedling tray placed on a seedling stand and planted in a field and seedling extruding members that extrude seedlings from seedling planting nails when planting seedlings A first rotary member that rotates about a central rotation axis in the left-right direction, and a second rotary member that connects base ends to output shafts at both ends of the first rotary member. The transplanting machine is configured to attach the seedling planting claw to the output shaft of the plant and move the fulcrum part of the seedling planting claw along a locus K having a substantially triangular shape.   The transplanter according to claim 1, wherein the seedling extruding member is disposed inside a seedling planting claw.   The transplanting machine according to claim 2, wherein the seedling extruding member is inclined with respect to the seedling planting nail. The transplanter according to claim 3, wherein the seedling extruding member has a bifurcated tip.

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