JP2005295966A - 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 improve operation efficiency. <P>SOLUTION: The subject transplanter has the seedling-transplanting tines 16 for taking out the cell-shaped seedlings N stored in a seedling tray put on a seedling-carrying platform 14, and transplanting the taken out seedlings N, and the seedling carrying platform 14 arranged in the front direction of the seedling-transplanting tines 16 based on the traveling direction. Fulcrum parts 53 of the seedling-transplanting tines 16 are moved so as to draw nearly triangle loci K, and the tips of the seedling-transplanting tines 16 are swung by centering the fulcrum parts 53 so as to draw seedling-transplanting loci A. The transplanter is constituted so that the cell-shaped seedlings N may be taken out to the rear part of the seedling-carrying platform 14, and the taken out seedlings N may be transplanted on the field by being conveyed downward. <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.

  2. Description of the Related Art Conventionally, a seedling tray in which a transverse feed screw shaft is installed in the left-right direction at the rear of the body of the transplanter, a seedling stage is slidably disposed on the lateral feed screw axis, and seedlings are stored on the seedling stage. The seedling stage is reciprocated to the left and right by lateral feed drive, and when the left and right end positions are reached, the seedling tray is driven to feed vertically, and the seedling is taken out from the seedling tray by the seedling planting claws. There is a transplanter that is directly planted in a field (see, for example, Patent Document 1).

JP 2003-274710 A

  However, in the transplanting machine as described above, since a series of transplanting operations of taking out and planting seedlings is performed with one seedling planting claw on one seedling tray, seedlings can be planted at the same time. When transplanting a large number of seedlings with a small number of streaks, it was necessary to reciprocate while walking many times.

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

  That is, according to claim 1, a cell-molded seedling stored in a seedling tray placed on a seedling stand is taken out and planted in a field, and placed in front of the seedling planting nail with respect to the traveling direction. This is a riding-type transplanter equipped with a seedling mounting table that moves the fulcrum of the seedling planting claw with a substantially triangular locus K, takes out the cell-shaped seedling behind the seedling mounting table, and transports it downward. It is configured to be planted in the field.

  In Claim 2, the said seedling planting nail is juxtaposed side by side, cell-shaped seedlings are taken out from two seedling planting nails from one seedling tray, and planted in two adjacent strips. is there.

  According to a third aspect of the present invention, the drive mechanism for the seedling planting nail is arranged on the left and right outer sides.

  In Claim 4, when the said seedling tray is provided with two or more on a seedling mounting stand, the drive mechanism of the right and left seedling planting nail which adjoins inside is shared.

  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 placed in front of the seedling planting nail with respect to the traveling direction This is a riding type transplanter equipped with a mounting stage, and the fulcrum part of the seedling planting claw is moved along a locus K having a substantially triangular shape, and the seedling planting claw is swung around the fulcrum part. Since the tip of the claw is moved along the seedling planting locus A, the cell-molded seedling is taken out rearward from the seedling mounting stage, transported downward, and planted in the field. To make planting easy and to improve the workability reliability by easily taking out seedlings without adversely affecting the seedlings above the seedlings taken out of the seedling tray and enabling smooth direct planting. Can do.

  In claim 2, the seedling planting nails are arranged side by side, and the seedlings are taken out from two seedling planting nails from one seedling tray and planted in two adjacent strips. Two seedlings can be planted simultaneously, and work efficiency can be improved.

  In Claim 3, since the drive mechanism of the seedling planting claw is arranged outside, two seedling planting claws are arranged close to each other, so that even if the spacing is narrow, two seedlings can be planted simultaneously It is possible to improve work efficiency. Moreover, the seedling planting nail | claw arrange | positioned to the inner side by the drive mechanism can be protected.

  In claim 4, when a plurality of the seedling trays are provided on the seedling mount, the drive mechanisms of the right and left seedling planting claws adjacent on the inside are shared, so the number of drive mechanisms is reduced. Thus, the cost can be reduced, and a compact configuration can be achieved.

Next, embodiments of the invention will be described.
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. 4 is a seedling. FIG. 5 is a driving explanatory diagram of the seedling planting unit, FIG. 6 is a driving explanatory diagram of the seedling planting claw, FIG. 7 is a sectional view of the rotary case, and FIG. 8 is an explanation of the swing cam portion. FIG. 9 is an explanatory diagram of the groove cam portion, FIG. 10 is a plan explanatory diagram of the planting claw portion, FIG. 11 is an explanatory diagram of the seedling pushing member, FIG. 12 is an explanatory diagram of the locus of the seedling planting claw, and FIG. 14 is a side view of a seedling planting claw, FIG. 15 is a diagram of 0 ° and 180 ° positions of a seedling planting claw, and FIG. 16 is a 45 ° and 225 ° view of a seedling planting claw. FIG. 17 is an explanatory diagram of the 90 ° and 270 ° positions of the seedling planting nails, and FIG. 18 is an explanatory diagram of the 135 ° and 315 ° positions of the seedling planting nails.

  As shown in FIGS. 1 and 2, the engine 2 is mounted on the front part of the traveling unit 1, the front wheel 3 serving as a steering wheel is supported on the front lower part, and the rear wheel 4 is supported on the rear lower part. A mission case 5 is arranged behind the engine 2, and power is transmitted from the output shaft of the engine 2 via the mission case 5 to drive the front wheels 4. A driving operation unit 6 is provided at the center of the traveling unit 1, and a steering handle 7 and a seat 8 are disposed at the rear thereof. Preliminary seedling stands 9 are disposed on both sides of the front bonnet of the traveling unit 1, and a seedling planting device 10 is disposed at the rear of the traveling unit 1. The seedling planting device 10 can be moved up and down via a lifting mechanism 34, and the seedling planting device 10 is connected to the rear portion of the traveling unit 1 through the top link 11 and the lower link 12, and the lifting mechanism 34 is moved below the seat 8. It is configured to be movable up and down by a lifting cylinder 13 arranged in the above. In this way, it is a post-planting riding type transplanter.

  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 and a guide roller 26 (FIG. 2), and a seedling tray 33 is placed on the seedling stage 14. The seedling tray 33 forms concave portions (pots) in a grid pattern, fills the concave portions with soil, and seeds the seedling tray 33 to grow the cell-shaped seedlings N.

  As shown in FIG. 3, the seedling planting unit 80 takes out and seeds the seedling N with two sets of seedling planting claws 16 on one seedling tray 15, and is 180 degrees on the same planting locus A. Two phases of seedlings and seedlings are planted twice in one planting trajectory A with different phases, and two seedlings N are planted. It is configured to do work.

  As shown in FIGS. 3 to 14, the seedling planting device 10 has two seedlings placed on the seedling stage 14 by placing a seedling stage 14 in front of the seedling planting claws 16 in the traveling direction. The trays 15 and 15 are reciprocated by a lateral feed drive via a lateral feed screw shaft 25 and a guide roller 26 projecting from the left and right sides of the planting transmission case 33, and at the same time via a shaft 34 projecting from the left and right other side. While driving vertically, two seedling planting units 80 and 80 are juxtaposed in parallel with each seedling tray 15 so that one seedling tray 15 can be seeded at a time with two seedling planting units 80 and 80. We are trying to take out. That is, since there are two sets of seedling planting units 80 each having two seedling planting claws 16 for one seedling tray 15, two seedlings are formed with four seedling planting nails 16, 16, 16, 16 at a time. The seedlings are taken out from the trays 15 and 15, respectively.

  The seedling planting unit 80 swings the two seedling planting claws 16, 16, the first rotary case 17 and the second rotary case 18 that drive the seedling planting claws 16, and the seedling planting nails 16. A swing cam 19 for swinging, an opening / closing cam 22 for opening and closing the left and right nail bodies 20 and 21 of the seedling planting claw 16, and a seedling pushing cam 24 for operating the pushing mechanism 23 for the seedling N held between the left and right nail bodies 20 and 21. The drive mechanisms 81a and 81a for driving the seedling planting claws 16 are arranged on the left and right outer sides of the seedling planting unit 80 and supported by support frames 83 and 83 extending from the transmission frame 82, respectively. The power is transmitted from the output shaft 35 of the planting transmission case 33 inserted into the transmission frame 82 to the seedling planting units 80 and 80 through the seedling planting drive mechanisms 81a and 81a, and the seedling planting claws 16 are driven. I am doing so. In the case where a plurality of seedling trays 15 are arranged on the seedling mounting table 14, the driving mechanisms 81a and 81a of the two seedling planting units 80 and 80 that are adjacent to each other on the inner side are shared, and arranged between the seedling planting units 80 and 80. The seedling planting units 80 and 80 are driven by two seedling planting drive mechanisms 81b. In this embodiment, four seedling planting units 80 are arranged to form a four-row planting. The support frame 83 protrudes rearward from the left and right outer sides and the left and right centers of the transmission frame 82, and the seedling planting units 80 are projected from the left and right sides and the center.・ The power is transmitted to 80.

  The seedling planting unit 80 is provided so as to be inclined to the left and right outside with respect to the vertical direction, and the seedling planting claws 16 and 16 in the pair of seedling planting units 80 are arranged in a “C” shape in a rear view. That is, the drive receiving shaft 28 is fixed at a predetermined angle to the side surface of the front end portion of the support frame 83 extending in the rear horizontal direction from the transmission frame 82 disposed horizontally in the left-right direction, and is attached to the output shaft 35 of the planting transmission case 33. The outer cylinder shaft 32 is spline-fitted to the planting input shaft 31 connected through the seedling planting claw drive mechanism 81, and the outer cylinder shaft 32 is rotatably supported by the receiving shaft 28. Then, one end of the outer cylinder shaft 32 is fixed to the center of the first rotary case 17, the sun gear 38 is loosely fitted on the outer cylinder shaft 32 in the first rotary case 17, and one end of the sun gear 38 is connected to the drive receiving shaft 28. Meshed with each other or fixed to the airframe 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 planetary gear 40 is connected to the idle gear 42. Is engaged. Then, 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 output when the first rotary case 17 rotates once in one direction. The shaft 39 is configured to rotate twice in the reverse direction.

  In FIG. 7, 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 swinging 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.

  Then, as shown in FIG. 12, 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. 12, the camshaft 53 that is rotated twice (in the direction of the broken line arrow) and becomes a fulcrum of the seedling claw 16 by one rotation of 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. 6 and 10, 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. 10 and 14, 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 opening / closing shafts 58 and 59 protrude upward from the claw case 57 in FIG. 14, and the left and right claw bodies 20 and 21 are fixed to one ends (upper ends) of the left and right opening and closing shafts 58 and 59, respectively. 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. 10, 11 and 14, the seedling extruding member 72 has a distal end portion 72b formed in a bifurcated shape and configured in 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 72 a to pivotally support the seedling extrusion member 72 to the extrusion arm 66, and the base side of the other end of the extrusion arm 66 is connected 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.

  In FIG. 14, assuming that the vertical center line L1 of the left and right nail bodies 20 and 21 is located 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.

  Further, as shown in FIG. 14, the guide 75 controls the position of the midway portion in the longitudinal direction of the seedling pushing member 72. 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, 12, 15 to 18, when the first rotary case 17 makes one rotation counterclockwise (solid arrow direction) about 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 line arrow). During this rotation, as shown in FIG. 8, a roller 47 provided at one end of the swing arm 44 is fitted to the swing groove cam 19 provided on the receiving shaft 28 of the first rotary case 17 so as to roll freely. 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 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 claws 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, as shown in FIG. As shown in FIG. 18, 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 to the horizontal direction from the vertically oriented state as in the seedling planting claws 16B of 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 14 placed on the seedling stage 14 and transplants the seedling planting claws 16 to be planted in the field, and the traveling direction. A riding-type transplanter including a seedling mounting base 14 disposed in front of a seedling planting claw 16, which moves a cam shaft 53 serving as a fulcrum portion of the seedling planting claw 16 along a substantially triangular locus K. At the same time, the seedling planting claw 16 is swung around the camshaft 53, the tip of the seedling planting claw 16 is moved along the seedling planting locus A, and the cell-molded seedling N is taken out rearward from the seedling mount 14 and conveyed downward. Therefore, the cell-shaped seedlings N taken out from the seedling tray 15 can be easily planted directly, and the cell-shaped seedlings N above the taken-out seedlings in the seedling tray 15 can be easily planted. Smooth direct planting by taking out the cell-molded seedling N well without adverse effects Only can be improved and the reliability of workability by easily and be.

  Further, the seedling planting claws 16 are arranged side by side so that the cell-molded seedlings N are taken out from two seedling planting claws 16 and 16 from one seedling tray 15 and planted in two adjacent strips. Two seedlings can be planted simultaneously, and work efficiency can be improved.

  In addition, the drive mechanism 81 of the seedling planting claw 16 is arranged on the outside, and the two seedling planting claws 16 and 16 are arranged close to each other so that two seedlings can be planted at the same time even when the spacing is narrow. As a result, work efficiency can be improved. In addition, the seedling planting claws 16 arranged on the inner side of the driving mechanism 81 can be protected.

  In addition, when a plurality of the seedling trays 15 are provided on the seedling mounting table 14, by sharing the driving mechanisms 81 of the left and right seedling planting claws 16 adjacent on the inside, the number of the driving mechanisms 81 is reduced, Costs can be reduced and a compact configuration can be achieved.

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. The rear view of a nail | claw part with a seedling planting. Drive explanatory drawing of a seedling planting unit. Drive explanatory drawing of a seedling planting nail. Sectional drawing of a rotary case. 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 Seedling claw 53 Cam shaft (fulcrum)
81 Drive mechanism

Claims (4)

  A seedling planting claw for taking out a cell-molded seedling stored in a seedling tray placed on a seedling platform and planting it in a farm, and a seedling platform placed in front of the seedling planting claw with respect to the traveling direction This is a riding type transplanter configured to move the fulcrum portion of the seedling planting claw with a substantially triangular trajectory K, take out the cell-shaped seedling from the seedling stage, transport it downward, and plant it in the field. A transplanter characterized by that.   2. The seedling planting nails are arranged side by side, and cell-formed seedlings are taken out from two seedling planting nails from one seedling tray and planted in two adjacent strips. The transplanter described in 1.   3. The transplanter according to claim 2, wherein a drive mechanism for the seedling planting nail is arranged on the left and right outer sides. 4. The transplanter according to claim 3, wherein when a plurality of the seedling trays are provided on the seedling mount, a driving mechanism for the left and right seedling planting claws adjacent to each other is shared.

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