JP2004261188A - Seedling planting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seedling planting apparatus solving the problem that conventionally provided seedling planting apparatus can rotate its outer side planting frame around an inner side longitudinal rotating axis to bend or fold upward or downward, but when an operator separates the outer ends of an adjustable shaft, supported by the outer side planting frame, from the center of a center planting frame and returns the outer side planting frame as it was, the frame remains as it is, and making the outer end connectable with a center part by the operator. <P>SOLUTION: This seedling planting apparatus has arms 50 and 51 respectively projected from ends of a center part 37a and an outer part 37b of the adjusting axis 37, wherein, when the planting frame 22 is rotated around the longitudinal rotating axis 41 to bring the frame 22 close to the inside, the outer part 37b of the the adjusting axis 37 is separated from the center part 37a and, when the outer planting frame 22 is returned, the arm 50 and 51 are connected to each other and the outer part 37b of the adjusting axis 37 is connected with the center part 37a. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention is used for a multi-row seedling planter.

A plurality of planting frames having a planting rod at the rear are protruded rearward at substantially equal intervals from a seedling planting gear box and a sleeve projecting left and right from the box, and the planting rod transplants seedlings to a plurality of strips in one stroke. The seedling-planting device is provided in a wide width. Also, a plurality of floats sliding on the mud surface are arranged side by side, and the implant rod pre-levels the mud surface at the position where the seedlings are to be transplanted, and when the adjusting shaft supported by the implant frame is rotated, each float is adjusted. The rear part of the float moves up and down, and the position of the implantation rod changes up and down, so that the implantation depth of the seedling to be transplanted can be adjusted. Then, in order to make the seedling planting device compact when housed, the outer implanting frame is turned around the turning axis in the front-rear direction on the inner side to be bent upward or downward, or folded. Some have been developed (see Patent Document 1).
JP-A-8-154439

  Here, in the conventional apparatus, when turning the outer planting frame around the rotation axis, the outer end of the adjusting shaft supported by the outer planting frame is supported by the central planting frame. Even when the operator separated from the central portion in advance and returned the outer planting frame, it was necessary for the operator to connect the separated outer end portion to the central portion.

  According to the present invention, a plurality of implantation frames 18, 20, 22 having an implantation rod 32 at a rear portion, a plurality of floats 36 for leveling a mud surface, and a rotatably supported by the implantation frames 18, 20, 22 are provided. The float 36 is connected to the adjustment shaft 37, and the float 36 is moved up and down by the rotation of the adjustment shaft 37. The adjustment shaft 37 includes a central portion 37a and an outer portion 37b. And the outer portion 37b is rotatably supported by the outer implant frame 22. The outer implant frame 22 is turned around a rotation shaft 41 in the front-rear direction. In the seedling planting apparatus which can be brought inward, arms 50 and 51 projecting from respective ends of the central portion 37a and the outer portion 37b of the adjusting shaft 37 are provided, and the outer implanting frame 22 is moved in the front-rear direction. Rotation of When turned around 41 and brought inward, the outer portion 37b of the adjusting shaft 37 is separated from the central portion 37a, and when the outer implant frame 22 is returned, the arms 50 and 51 are connected to each other so that the outer portion of the adjusting shaft 37 is The seedling plant was configured such that 37b was connected to the central portion 37a.

  Therefore, in this seedling transplanter, seedlings are transplanted to the mud surface by the implantation rods 32 provided at the rear of the plurality of implantation frames 18, 20, 22 while the mud surface is leveled by the plurality of floats 36. Further, by rotating the adjusting shaft 37 supported by the implantation frames 18, 20, 22 to move the plurality of floats 36 up and down, the implantation depth of the seedlings can be adjusted. Then, the outer implant frame 22 can be turned around the turning shaft 41 in the front-rear direction to be brought closer to the inside of the machine body. At this time, the outer portion 37b of the adjusting shaft 37 supported by the outer planting frame 22 rotates together with the planting frame 22, and the outer portion 37b separates from the central portion 37a of the adjusting shaft 37. When the outer implant frame 22 is returned, the arms 50 and 51 protruding from the respective ends of the central portion 37a and the outer portion 37b of the adjusting shaft 37 are connected to each other, and the outer portion 37b of the adjusting shaft 37 is connected to the central portion 37a. Be combined.

  Therefore, the arms 50 and 51 protruding from the respective ends of the central portion 37a and the outer portion 37b of the adjusting shaft 37 are provided, and when the outer implanting frame 22 is rotated inward to reduce the lateral width, the adjusting shaft 37 is reduced. When the outer portion 37b is automatically separated from the central portion 37a and the outer implant frame 22 is returned, the arms 50 and 51 are connected to each other so that the outer portion 37b of the adjusting shaft 37 is connected to the central portion 37a. Therefore, unlike the related art, the trouble of separating the outer portion 37b of the adjusting shaft 37 from the central portion 37a prior to the rotation of the planting frame 22 can be omitted, and the adjusting shaft 37 may be damaged by erroneous operation. Is eliminated.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
A seedling plant 2 is mounted on a traveling vehicle body 1 to form a seedling plant (FIGS. 1 and 2).
The traveling vehicle body 1 is configured as follows. A main gear box 4 and a rear wheel gear box 5 are provided before and after the frame 3, and a front wheel 6 and a rear wheel 7 are arranged outside each of them. The engine 8 is fixed on the frame 3 and its rotational power reaches the front wheels 6 and the rear wheels 7 via the transmission in the main gear box 4, and these rotate on the cultivator of the paddy field to drive the vehicle body. One is made to move forward. When a seat 9 is provided on the engine 8 and a steering handle 10 in front of the seat 9 is turned, the front wheels 6 are steered to change the course of the traveling vehicle body 1.

  The support 11 extends upward from the rear of the frame 3, and both ends of a pair of vertically parallel links 12 are rotatably attached to the pair and the rear vertical frame 13. When the front end of the hydraulic cylinder 14 is attached to the frame 3, the rear end of the piston rod projecting obliquely upward from the rear is connected to the arm 15 integrated with the upper frame 12, and when oil is sent to the hydraulic cylinder 14, the piston rod is The vertical frame 13 is protruded and rises, and when the oil is returned to the tank, the vertical frame 13 is lowered.

  The seedling plant 2 is configured as follows. A seedling gear box 16 is attached to the lower part of the vertical frame 13 so as to swing around a rolling shaft 17 (FIG. 3) in the front-rear direction. An implantation frame 18 extends rearward from the seedling gear box 16. A pair of sleeves 19 protrude outwardly from both sides of the seedling gear box 16, and the inside of the front part of the implantation frame 20 is fixed to each protruding end. A pair of sleeves 21 protrude outward from the outside of the front of each implantation frame 20, and the inside of the front of the implantation frame 22 is fixed to each protruding end (FIG. 3).

  A drive shaft 23 is provided through the seedling gear box 16, the sleeves 19, 21 and the implant frames 20, 22, and the rotational power of the engine 8 is transmitted from inside the main gear box 4 via the transmission shaft 24 and the propeller shaft 25. Has reached. A rotating shaft 26 is provided at the rear of the implantation frames 18, 20, 22. The center of an oval-shaped rotating case 27 is fixed to both ends. A chain 30 is wound around a tooth wheel 28 fixed to the drive shaft 23 and a tooth wheel 29 fixed to the rotating shaft 26, so that the rotating case 27 rotates counterclockwise in FIG. A seedling receiving plate 31 having an L-shaped cross section is fixed laterally to the implantation frames 18, 20, 22. A pair of implanted rods 32 are attached to the respective rotating cases 27, and when they rotate, they rotate with the planetary gears in them maintaining the same posture, and alternately intersect the seedling openings of the seedling receiving plate 31 at the beginning of descent. It is constituted so that it may pass, and it has become a 10-row planting.

  A pair of support rods 33 extend upward from the front end of each implantation frame 20, and the seedling mounting table 34 is supported at the front of the seedling receiving plate 31 so as to move left and right. The laterally moving rod 35 projects right and left from the seedling plant gear box 16, and the power of the drive shaft 23 is transmitted via a lead cam (not shown) to be reciprocated right and left. The seedling mounting table 34 is inclined forward and connected to the lateral movement rod 35, divided by a partition wall in the front-rear direction, ten mat seedlings are placed side by side, and the rear end of each mat seedling is placed on the seedling receiving plate 31. It is reciprocally driven left and right by projecting upward. The rear end of the mat seedling is cut off by the implant rod 32 when passing over the seedling opening, and is transplanted to the mud surface at the lower end.

  Five floats 36 are arranged under the respective implantation frames 18, 20, 22. The float 36 slides on the mud surface as the traveling vehicle body 1 advances, and the left and right overhanging portions at the front portion have the implantation rods 32 at the seedlings. The position for transplanting is pre-aligned. An adjustment shaft 37 is rotatably mounted on the implant frames 18, 20, 22. When the five arms 38 extend rearward and downward from the adjustment shaft 37, the rear part of the float 36 is rotatably attached to each rear end, and when the adjustment shaft 37 is rotated by the adjustment rod 39 extending obliquely upward, The arm 38 moves up and down the rear part of the float 36, and the height of the implantation rod 32 from the mud surface changes, so that the implantation depth of the seedling can be adjusted.

  The seedling plant 2 is configured as a ten-row plant as described above, and its lateral width is significantly wider than the lateral width of the traveling device 1, but it can be reduced as follows. One part 34a, 34b of the partition wall of the seedling mounting base 34 extends upward, and each upper end is hingedly connected by a shaft 40 substantially parallel to the seedling mounting surface of the seedling mounting base 34, and a side on which two mat seedlings are mounted. The ends are folded up (FIGS. 1 and 2). The lateral end of the seedling receiving plate 31 faces upward.

  The right sleeve 21 and others are configured as shown in FIGS. In addition, only the right side is shown in a cut back view for symmetry. That is, the sleeve 21 is divided into a central portion 21a fixed to the implantation frame 20 and an outer portion 21b fixed to the implantation frame 22, and both are pivoted below the center of the rotating shaft 41 (slightly inclined forward and downward). , So that the end surfaces thereof come into contact with each other and the outer portion 21b hangs down. The drive shaft 23 is divided into upper and lower portions of the center portion 23a and the outer portion 23b at the upper portion of the rotation shaft 41, and the shaft joints 42 provided at the respective ends are engaged or separated by the above rotation. When the positioning pin 43 protrudes inward from the upper portion of the outer portion 21b and the end surface of the outer portion 21b contacts the end surface of the central portion 21a, the positioning pin 43 engages with the elongated hole 44 of the central portion 21a to determine the positions of the two. ing. When the horizontal portion of the L-shaped fixed handle 45 is rotatably attached to the central portion 21a, when the horizontal portion is turned, the vertical portion pulls the guide plate 46 fixed to the outer portion 21b toward the central portion 21a, and the outer portion 21b is moved to the center. It is made to be fixed to the part 21a. The fixing pin 47 is pushed by a spring 48 below the rotating shaft 41 and protrudes inward from the outer portion 21b. A fixing hole 49 is provided in the central portion 21a upward inside the rotation shaft 41.

  After turning the fixed handle 45 in the state of FIG. 4 to separate from the guide plate 46, the fixing pin 47 is pulled to the right with the knob 47a, and the outer portion 21b is turned down around the rotation shaft 41, and Release the hand. Then, as shown in FIG. 5, the fixing pin 47 is pushed by the spring 48 and the tip enters the fixing hole 49, and the outer portion 21b is fixed to the central portion 21a.

  The horizontal portion of the adjustment shaft 37 is configured as shown in FIGS. Note that only the right side is shown because of left-right symmetry. That is, the adjusting shaft 37 is divided at the position of the rotating shaft 41 into left and right portions of the central portion 37a and the outer portion 37b, and the arms 50 and 51 project upward from the respective ends. A guide plate 52 and a pin hole 53 which are oblique when viewed from above are provided on the arm 50. The tip of the engaging pin 54 fixed to the arm 51 protrudes into the pin hole 53 (FIG. 6).

  Therefore, when the central portion 37a of the adjusting shaft 37 is turned by the adjusting rod 39, the rotation is transmitted to the outer portion 37b via the arm 50, the engaging pin 54, and the arm 51, and the respective arms 38 move the rear portion of the float 36. Up and down. When the outer portion 21b of the sleeve 21 is turned downward around the rotating shaft 41 and bent as described above, the engaging pin 54 is separated from the pin hole 53, and the outer portion 37b of the adjusting shaft 37 is separated from its central portion 37a. I do. Conversely, when the bent outer portion 21b is turned upward to make the central portion 21a and the outer portion 21b linear, the tip of the engaging pin 54 is guided by the inner surface of the guide plate 52 and is inserted into the pin hole 53. Then, as described above, the arm 50 and the arm 51 are connected by the engaging pin 54, and the two are integrated.

  A fixed-position stop clutch is provided on a transmission path for transmitting the power of the engine 8 to the drive shaft 23, and when the power transmission is cut off, a pair of the implanted rods 32 provided on one rotating case 27 becomes muddy. Can be provided so as to stop turning at a position that is substantially the same height from the center. Then, when the sleeve 21 is bent and the lateral width of the seedling plant 2 is reduced, the outer implanting rod 32 can be rationally stored.

  Providing the receiving rod 55 (FIGS. 1, 3, and 8) on the outer surface of the implantation frame 22 so as to rotate around a horizontal axis is effective when the seedling machine is carried by truck. . That is, when the outer portion 21b of the sleeve 21 is bent downward around the rotation shaft 41, the outer surface of the planting frame 22 so far comes down (FIG. 8). Here, when the receiving rod 55 is turned around the above-mentioned axis, its end protrudes outside. When this seedling planter is placed forward on the bed 56 of the truck and the seedling plant 2 is lowered, the receiving rod 55 hits the upper surface of the tilt 56a on the side of the bed 56 and the lowering stops.

  An L-shaped or U-shaped guard 57 viewed from above is fixed to the planting frame 22 so as to protect the protruding portion of the seedling receiving plate 31. It is advantageous that the guard 57 is configured to be bent or folded when not in use.

Side view of a seedling plant according to the present invention Its plan view An enlarged plan view of one part An enlarged cut back view of one part Its operation diagram Enlarged rear view of one part Partial side view Rear view of part 1

Explanation of reference numerals

  2 ... Seedling plant, 18, 20, 22 ... Implant frame, 32 ... Implant rod, 36 ... Float, 37 ... Adjustment axis, 37a ... Central part, 37b ... Outside part, 41 ... Rotation axis, 50, 51 …arm

Claims (1)

A plurality of implantation frames 18, 20, 22 having an implantation rod 32 at the rear, a plurality of floats 36 for leveling mud surfaces, and an adjustment shaft 37 rotatably supported by the implantation frames 18, 20, 22. The float 36 is connected to the adjusting shaft 37, and the float 36 is moved up and down by the rotation of the adjusting shaft 37. The adjusting shaft 37 is divided into a central portion 37a and an outer portion 37b. At the same time, the outer portion 37b is rotatably supported by the outer implanting frame 22, and the outer implanting frame 22 is turned around the turning shaft 41 in the front-rear direction to approach the inside of the machine body. The arm 50, 51 protruding from each end of the central portion 37a and the outer portion 37b of the adjusting shaft 37 is provided, and the outer implanting frame 22 is pivoted in the front-rear direction. Around 41 When turned inward, the outer portion 37b of the adjusting shaft 37 is separated from the central portion 37a, and when the outer implant frame 22 is returned, the arms 50 and 51 are connected to each other so that the outer portion 37b of the adjusting shaft 37 is A seedling plant configured to be coupled to 37a.

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