JP3610601B2 - Seedling planting machine - Google Patents

Description

[0001]
[Industrial application fields]
The present invention is effective for a seedling planting machine for transplanting sweet potato seedlings.
[0002]
[Prior art]
In this type of seedling planting machine, as shown in Japanese Patent Laid-Open No. 63-133916, after the planter (planting claw) holding the seedling base turns and enters the field, its lower end is in the soil. The seedlings that had progressed shallow and long were planted on the boat, and swung in the same direction to escape from the soil.
[0003]
[Problems to be solved by the invention]
Therefore, the soil was removed by the escape from the planter's soil on the base of the seedling transplanted to the boat-drawn planting. Therefore, after that, it was necessary to cover it with soil using a sophisticated soil covering device.
[0004]
[Means for Solving the Problems]
In order to solve the above problems, the present invention is a self-propelled seedling planting machine in which a seedling planting device 2 for planting sweet potato seedlings in a field is mounted on a traveling vehicle body 1 mounted with a prime mover 4 and capable of traveling forward. The seedling planting device 2 is provided with a planting claw 25 composed of a pair of left and right plates that can be opened and closed, and the tip of the planting claw 25 is when the traveling vehicle body 1 stops traveling , and enters the farm field to enter the soil. The nail is configured to turn up and down on a non-circular orbit B in a side view of the fuselage so as to move backward and forward in a shallow direction and then turn back in the forward and backward direction and escape from the soil. When the traveling vehicle body 1 moves forward, the front end of 25 moves forward while turning up and down along the trajectory B and turns up and down along the forward trajectory B1. To close and hold the base of the seedling A structure that moves into the field with the pinched state and moves forward in a shallow and shallow direction in the soil, then opens to release the seedling, folds in the reverse direction in the front and back direction, and moves forward and escapes from the soil A seedling planting machine characterized by
[0005]
[Action]
In the seedling planting machine configured as described above, the planting claw 25 is operated by the power of the prime mover 4 and the tip part thereof is at the time when the traveling vehicle body 1 is stopped traveling , and enters the farm field and travels shallowly and long backward in the soil. After that, it turns up and down on a non-circular track B as viewed from the side of the machine body so that it turns back and forth in the reverse direction, proceeds forward and upward, and escapes from the soil . During the work, the implantation claw 25 operates while the traveling vehicle body 1 moves forward. At this time, when the tip of the planting claw 25 passes near the seedling mounting base (including the seedling feeder) in the initial stage of the descending process, the planting claw 25 closes and clamps the base of the seedling. And it enters into a farm field with the seedling pinching state, and progresses backward in the soil shallowly long. Then, it opens to the left and right, releases the seedling, folds back in the front-rear direction, advances forward and escapes from the soil.
[0006]
【effect】
Therefore, according to the present invention, the base of the sweet potato seedlings sandwiched between the tips of the planting claws 25 is planted in a shallow and long way through the soil, and on the base of the transplanted sweet potato seedlings. The soil will remain, and it will not be necessary to scrape the soil over the base of the seedling, thus simplifying the soil covering device.
[0007]
【Example】
Next, an embodiment of the present invention will be described. As shown in FIG. 1, a seedling planting device 2 is attached to the traveling vehicle body 1 to form a self-propelled seedling transplanter. The traveling vehicle body 1 is configured as follows. A prime mover 4 and a frame 5 are fixed before and after the gear box 3. A pair of left and right wheel transmission cases 6 and 6 extend obliquely downward from both sides of the gear box 3, and wheels 7 and 7 are attached to the respective lower ends. The pair of wheels 7 and 7 are located in the valleys on both sides of the vehicle A and are driven by the prime mover 4 so as to advance the traveling vehicle body 1 to the left in the drawing. A planting case 8 is fixed to the rear end of the frame 5, and a planting frame 9 extends obliquely upward from the left side. A handle post 10 extends obliquely upward from an intermediate portion of the planting frame 9, and a handle 11 is fixed to an upper end thereof. The frame 5, the planting case 8 and the planting frame 9 also serve as a transmission case.
[0008]
The seedling planting device 2 includes a seedling mounting table 12 and a planting device 13. The seedling stage 12 is arranged in front of the frame 5 so that the lower surface of the released rear end rides on the seedling receiving plate 14 and is reciprocated left and right by a lead cam 15 rotated by the prime mover 4. It has become. The following seedlings are placed on the seedling stage 12. As shown in FIG. 2, trapezoidal pots 16a, 16a... Made of pulp are connected to the front, rear, left and right to form a pot sheet 16 (molded integrally). Pot sheets 16, 16 filled with floor soil 17 in pots 16a, 16a... Are placed side by side in seedling box 18 (FIG. 3). The buds from the sweet potatoes are cut into 3-5cm with knots and inserted into the floor soil 17 through the holes 16b, 16b ... on the top. Is formed.
[0009]
The implanter 13 is made as follows. As shown in FIGS. 1, 4, and 5, the implantation case 19 is disposed on the center line of the traveling vehicle body 1 behind the seedling stage 12. A crank 20 that is rotated by the prime mover 4 is provided on the right side of the planting frame 9, and a rotating shaft 20 a on the outer periphery thereof is rotatably provided on the implantation case 19. The arm 19 a and the arm 9 a extend from the middle part of the implantation case 19 and the planting frame 9, respectively, and the respective rear ends are connected to both ends of the link 21. When the cam 22 is fixed to the turning shaft 20a in the implantation case 19 and the crank 20 rotates, the implantation case 19 rotates relative to the cam 22 while moving up and down. The cam 22 includes a push cam 22a at the center and a pair of open / close cams 22b and 22b on both sides thereof. A pair of rotating shafts 23 and 23 are provided in the vertical direction on the implantation case 19 in front of the cam 22, and plate-like implantation claws 25 and 25 are fixed to the lower ends of the respective cases via attachments 24 and 24. . The arms 26, 26 extend outward from the respective rotary shafts 23, 23, and the protrusions 26a, 26a at the outer ends are pressed by the springs 27, 27 from the front to contact the opening / closing cams 22b, 22b. . That is, when the crank 20 rotates, the middle portion of the implantation case 19 is swung by the swing shaft 20a, so that the crank arm 20b of the swivel shaft 20a moves forward and backward and up and down, but the rear portion is limited by the link 21. Therefore, the slightly upward posture at the upper portion becomes a forward and downward posture as it descends, and the lower end portions of the implantation claws 25, 25 are non-circular in FIGS. 1 and 6 when the traveling vehicle body 1 is stopped. Passes through the geostationary orbit B. And when the lower end part of the implantation nails 25 and 25 passes the taking-out opening of the seedling receiving plate 14 in a downward stroke, the protrusions 26a and 26a ride on the large diameter parts of the opening and closing cams 22b and 22b, and the left and right implantation nails 25, 25 approaches (closes), and sandwiches one pot 16a in the group seedlings that are pushed out from the seedling stage 12 onto the seedling receiving plate 14. When the planting claws 25, 25 are further lowered, the pot 16a sandwiched as described above is removed from the group seedling together with the seedling. After that, the lower ends of the implanting claws 25, 25 are further lowered to enter the upper surface of the reed A, proceeding shallowly (longer downward) in the soil, and reaching the lower end of the track B, the protrusion 26a 26a falls on the small diameter portions of the open / close cams 22b and 22b, and the arms 26 and 26 are pushed by the springs 27 and 27, so that the implantation claws 25 and 25 are separated (opened). After that, the lower end portions of the implantation claws 25, 25 are advanced in the soil in the opposite direction so as to be folded and come out of the ridge A.
[0010]
A sliding shaft 28 is provided in the vertical direction at the front portion of the implantation case 19 and is pushed down by a spring 29. An extrusion tool 30 made of a leaf spring is fixed to the projecting end below the sliding shaft 28, and its lower end is positioned so as to contact between the left and right implantation claws 25, 25. The lever 31 is mounted on the horizontal shaft 32 so as to swing around it, and its protruding end engages with the sliding shaft 28, and a protrusion 31a extending downward from this is in contact with the push cam 22a. And when the lower end part of the implantation nails 25 and 25 reaches the lower end of the track | orbit B, the protrusion 31a will fall to the small diameter part of the extrusion cam 22a, the spring 29 will push down the sliding shaft 28, and the lower end of the extrusion tool 30 will be an implantation nail. 25, 25 is lowered to the lower end and the pot 16a in between is pushed down. After that, the protrusion 31a rotates clockwise in FIG. 4 by the rotation of the push cam 22a, the lever 31 pulls up the sliding shaft 28 against the spring 29, and the implantation claws 25, 25 are the outlets of the seedling receiving plate 14 When passing through, the lower end of the pushing tool 30 is pulled up from the lower ends of the implantation claws 25 and 25 in advance.
[0011]
Since the traveling vehicle body 1 is moving forward during the work, the lower ends of the implantation claws 25, 25 define the forward trajectory B1 in FIG. In the implantation nails 25, 25, one side may be fixed. In addition, the implantation device 13 can be arranged in front of the seedling table 12. The seedling stage 12 may be a feeder that holds vine-shaped seedlings side by side.
[Brief description of the drawings]
FIG. 1 is a side view of a seedling planting machine according to the present invention.
FIG. 2 is a slope view of a pot sheet for growing seedlings used in the seedling planting machine.
FIG. 3 is a slope view of the seedling box.
FIG. 4 is an enlarged cut side view of a part of the seedling transplanter.
FIG. 5 is a front view thereof.
FIG. 6 is a diagram showing its operation.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Traveling vehicle body 2 Seedling planting device 4 Motor 25 Implanted claw B Trajectory of implanted claw tip when traveling stopped B1 Trajectory of implanted claw tip when moving forward

Claims (1)

In a self-propelled seedling planter equipped with a prime mover 4 and mounted on a traveling vehicle body 1 provided to be able to travel forward, a seedling planting device 2 for planting sweet potato seedlings in a farm field, the seedling planting device 2 has a pair of left and right that open and close. And the tip of the implantation claw 25 is at the time when the traveling vehicle body 1 stops traveling , and enters the field and travels backward in a shallow and long direction in the soil. The front end of the implantation claw 25 is a forward movement of the traveling vehicle body 1 so as to turn up and down on a non-circular track B as viewed from the side of the machine body so as to be folded forward and to move forward and escape from the soil. Sometimes it moves forward while turning up and down on the trajectory B and moves up and down to make a forward trajectory B1, and the tip of the implantation claw 25 closes in the middle of descending to pinch the base of the seedling. Enter the field with the seedlings sandwiched, Ku longer proceeds backwards, then seedling planting machine is characterized in that a structure which operates to escape from the soil proceeds forward upwardly folded in the opposite direction before and after release the seedlings and opening operation.

Images