JP3658783B2 - Seedling transplanter - Google Patents

Description

[0001]
[Industrial application fields]
The present invention is used for a seedling transplanter for field action.
[0002]
[Prior art]
The seedling transplanter working in the field works as the V-shaped grooving tool enters the soil from the top and moves forward, creating a groove on the surface of the field, and the planting device transplants the seedling into this groove. It is made like this. In addition, a groove making tool has a thing which moves up and down, and a thing which does not move, the former makes an intermittent discontinuous groove | channel, and the latter makes a continuous groove | channel.
[0003]
[Problems to be solved by the invention]
Here, the conventional grooving tool is difficult to enter the soil in a clay soil, and the seedling is transplanted to the bottom of the flat, hard groove made by the advancement of the grooving tool. The degree of seedling falling or tilting was high.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention has a groove forming tool 15 that enters the soil from above and advances to make a groove B on the ground surface. A pair of blades 26 extending backward so as to be located on the outer side of the left and right sides of the notch 25 and the rear end of the mold with a gentler inclination from the both sides, and the blades 26 from the side. The lower edge 26b is cut out so that the lower edge 25b is higher than the lower edge 25a of the cut portion 25, and the planting device 14 is provided so as to transplant seedlings into the groove B in the groove producing tool 15. A seedling transplanting device was used.
[0005]
[Action]
Since the present invention is configured as described above, the groove making tool 15 enters the soil from the soil and advances to create the groove B on the field surface. Then, the planting device 14 holds the seedling C and descends, and transplants the seedling C in the groove B in the groove making tool 15. Subsequently, when the groove forming tool 15 moves forward, a little soil flows into the both sides of the seedling C from the notches 26a of the left and right blades 26, and the seedling C is held. After that, the pressure reducing roller refills the groove B and lightly presses and hardens it.
[0006]
【effect】
As described above, according to the present invention, the groove forming tool 15 is composed of the notch portion 25 and the blade plate 26 that extends later, and the lower edge 26b of the blade plate 26 is notched to form the notch portion 25. Since it is higher than the lower edge 25a, only the lower edge 25a of the cut portion 25 whose contact between the lower portion of the groove producing tool 15 and the field is mainly short in the front-rear direction. Therefore, the resistance to the soil at the lower edge of the groove forming tool 15 is reduced, and the groove forming tool 15 can easily enter the soil from above. In addition, the seedling C is transplanted into the groove B in the groove producing tool 15, and as it advances, some soil flows from the notches 26a below the left and right blades 26 toward the seedling C. Since the seedling C is supported by the soil, the upright posture of the seedling C transplanted into the groove B is improved.
[0007]
【Example】
Next, the embodiment will be described. As shown in FIG. 1, a seedling planting device 2 is mounted on the traveling vehicle body 1 to make a self-propelled seedling planting machine. The traveling vehicle body 1 is configured as follows. An engine 4 and a frame 5 are fixed before and after the gear box 3. A pair of chain cases 6 extend from both sides of the gear box 3 to the lower rear side, and a driving wheel 7 is attached to each lower end thereof, and is rotated by the power of the engine 4 between the valleys on both sides so as to straddle A. It is supposed to be. A planting case 8 extends rearward from the rear end of the frame 5, a handle post 9 extends further rearward from the middle thereof, and a handle 10 is fixed to the upper end thereof. A support leg 11 extends from the rear part of the frame 5 to the rear lower part, and a wheel 12 is attached to the rear end thereof. The wheel 12 is disposed behind the left driving wheel 7.
[0008]
The seedling planting device 2 includes a seedling mounting table 13 that is arranged in front of the frame 5 and is reciprocated to the left and right by the power of the engine 4. With the planting device 14 that turns on the circular track 14b, the groove forming tool 15 that enters the soil from above at the center of the rod A and makes the groove B (FIG. 2) by the advancement of the traveling vehicle body 1, and the advancement of the traveling vehicle body 1 It is composed of a pair of pressure reducing rollers 16 that move forward on both sides of the groove B and back up the groove B.
[0009]
As shown in FIG. 2, the support plate 17 is fixed to the rear portion of the frame 5, and the tip portions of the upper link 18 and the lower link 19 are rotatably attached to the respective shafts. The rear ends of the upper link 18 and the lower link 19 are attached to the vertical attachment rod 20 by respective shafts to constitute a parallel link. A cam 22 is fixed to a horizontal shaft 21 driven by the engine 4. When the upper link 18 is pulled counterclockwise by the spring 23, the intermediate roller 24 is pressed against the cam 22. That is, when the cam 2 rotates, the mounting rod 20 is reciprocated up and down.
[0010]
The groove making tool 15 configured as follows is fixed to the mounting rod 20. The steel plate is bent into a V shape that is open when viewed from above to form a cut portion 25 (FIG. 3), and a pair of blade plates 26 extend later from both sides of the rear end with a gentler slope than V. A notch 26 a is provided at the lower end of each blade 26, and the lower edge 26 b of the blade 26 is higher than the lower edge 25 a of the cut portion 25. The support rod 27 extends upward from the cut portion 25, and a small screw 28 is inserted into the hole 27 a to be fastened to the attachment rod 20. When the mounting rod 20 is lowered as described above, most of the groove-making tool 15 enters the soil from the upper surface of the rod A. Further, since the groove making tool 15 moves forward together with the traveling vehicle body 1, a groove B is formed after the cut portion 25. When the mounting rod 20 rises, the groove forming tool 15 rises upward from the upper surface of the flange A. This is performed continuously, and a large number of grooves B are intermittently formed at the front and rear. In addition, as for the groove making tool 15, the front edge of the notch part 25 falls a little forward, and the whole side surface opens a little upwards seeing from the front.
[0011]
Here, the nail | claw 14a of the planting apparatus 14 turns by the ellipse track | orbit 14b, and passes through the rear end of the seedling mounting stage 13 in the middle of the downward | swing process of the turning, and the seedling C for one strain from the group seedling which protrudes after this. , And the seedling C is held down to reach the lower groove forming tool 15 at the lower end of the turning, and the seedling C is left in the groove B being formed by the groove forming tool 15. Rise. Then, a little soil flows into the lower part of the seedling C from the left and right cutouts 26a by the advancement of the groove making tool 15, and the seedling C is supported from the left and right by the soil.
[0012]
After that, a pair of pressure-reducing rollers 16 advances both sides of the groove B to refill it, and lightly pushes and hardens it. FIG. 4 and FIG. 5 show an improved version of the groove producing tool 15 described above. In other words, the rake plates 29, 29 are extended to the rear ends of the wing plates 26, 26, and are bent forward so that the wing plate 26 and the rake plate 29 as viewed from above form a front-opening V-shape. Is formed. When viewed from the side, the lower edge 29a of the scoring plate 29 is lower than the upper edge of the notch 26a. The auxiliary wings 30 and 30 are extended from the scoring plates 29 and 29 so that the lower edges 30a and 30a coincide with the lower edges 29a and 29a. Therefore, when this groove making tool 15 enters the soil and advances, the scraping plates 29 and 29 scrape the soil on the surface of the ridge A toward the center, and the soil enters the groove from the notches 26a and 26a. Fall and hold seedling C.
[0013]
6 and 7 show an apparatus for preventing the heel A from collapsing during the grooving. That is, when intermittent grooves are formed by moving the groove forming tool 15 up and down, when the width of the ridge A is narrow, the groove forming tool 15 in the grooving may push the soil sideways and the ridge A may collapse. Here, as shown in FIG. 6, the front end of a U-shaped support rod 31 with a front opening as viewed from above is rotatably attached to the frame 5, and a pair of pressure reducing rollers 16, 16 is provided on the tip. A pair of mounting plates 32, 32 protrudes outward from the support rod 31, and prevention plates 33, 33 are fixed to the outer ends thereof. The prevention plates 33 and 33 are provided so as to be located on both sides of the shoulder of the heel A on both sides of the groove producing tool 15. Then, when the groove making tool 15 enters the soil, the soil pushed sideways is blocked by the prevention plates 33, 33, and the collapse of the ridge A is prevented.
[0014]
When turning the seedling planting machine at the end of the field, the seedling planting device 2 is pulled up from the ground by lowering the driving wheel 7. At this time, when the rear wheel 12 rises in the opposite direction to the moving wheel 7, the turning becomes easy. The apparatus is configured as follows. As shown in FIG. 8, the chain cases 6, 6 and a single flange 6 a, 6 a are rotatably attached to the flanges 3 a, 3 a of the gear box 3 so that the wheels 7, 7 move up and down by the rotation. It is made. A hydraulic cylinder 34 is attached to the frame 5, and the rear end of the piston rod 35 that protrudes from the hydraulic cylinder 34 is connected to the center of the horizontal bar 36. Protrusions 6b and 6b extending upward are provided on the flanges 6a and 6a, and the upper ends of the protrusions 6b and 6b are connected by rods 37 and 37, respectively. A horizontal shaft 38 is fixed to the rear portion of the frame 5, and a pipe 39 is attached thereto. The support leg 11 extends rearward and downward from the pipe 39, and a wheel 12 is attached to the lower end thereof. A short arm 40 and a long arm 41 extend from the left and right of the pipe 39 upward. An intermediate portion of the lever 42 is rotatably attached to the frame 5, and a pin 42 a protruding rightward from the lower end of the lever 42 is engaged with the long hole 40 a of the short arm 40. The pin 42 b protrudes to the right from the upper end of the lever 42 and faces the pin 41 a that protrudes to the left from the upper end of the long arm 41. When the tip of the rod 43 is attached to the horizontal rod 36 (or the piston rod 35) and the rear end thereof moves to the left and right, the hole 43a at the rear end is selectively engaged with the pin 42b or the pin 41a. As shown in FIGS. 9 and 10, when the lever 44 is operated, the shaft 44a rotates, the shifter 44b ahead of it moves to the left and right, and the rear end of the rod 43 moves to the left and right. .
[0015]
As shown in FIG. 8, a valve 46 is provided between the pump 45 and the hydraulic cylinder 34 and can be operated by an elevating lever 47. The figure shows a state in which the valve 46 is neutral, the oil is trapped in the hydraulic cylinder 34, the oil discharged by the pump 45 returns to the tank 48, and the piston rod 35 does not move. When the lift lever 47 is operated to move the valve 46 to the right, the oil discharged from the pump 45 enters the hydraulic cylinder 34, the piston rod 35 is pushed out, and the horizontal rod 36 is pushed later. Then, the rods 37 and 37 rotate the chain cases 6 and 6 clockwise in FIG. 1 to push down the driving wheels 7 and 7 and the front portion of the traveling vehicle body 1 is lifted. At this time, when the lever 44 is operated and the hole 43a is engaged with the pin 41a, the rod 43 pushes the upper end of the long arm 41 backward by the rearward movement of the recumbent rod 36, and the wheel 12 is lowered. That is, the moving wheels 7 and 7 and the roller 12 are simultaneously lowered, and the seedling planting device 2 is raised in parallel. On the contrary, when the hole 43a is engaged with the pin 42b and the rod 43 is moved later, the lever 42 rotates and the pin 42a pulls the upper end of the short arm 40 forward, and the support leg 11 is rotated. 1 rotates counterclockwise in FIG. 1 and the wheel 12 rises. That is, when the driving wheels 7 and 7 are lowered and the front portion of the traveling vehicle body 1 is raised from the ground, the rolling wheels 12 are raised so that the rear portion of the traveling vehicle body 1 can be easily turned at the end of the heel A without having to be pulled up largely. it can.
[0016]
Further, the lift lever 47 is operated to move the valve 46 to the left from the position shown in FIG. Then, the oil discharged from the pump 45 and the oil in the hydraulic cylinder 34 are returned to the tank 48, the horizontal bar 36 moves forward, and the driving wheels 7 and 7 rise. As above, the wheel 12 can be raised or lowered. The wheel 12 may be on the right side or a pair of left and right sides. A sensor 49 is provided on the lower abdomen of the frame 5 and slides on the surface of the bag A. This sensor 49 is rotated according to the height of the cocoon A to operate the valve 46 so that the seedling planting device 2 is kept at a certain height from the upper surface of the cocoon A.
[0017]
An irrigation apparatus is provided as shown in FIGS. Long tanks 50, 50 are arranged on the outside of the frames 5, 5 across the front and rear wheels 7, 7, and are connected by a joint tank 51 at the front. A supply port 52 is provided in the splicing tank 51. Both ends of the connecting pipe 53 are attached to the lower part of the rear ends of the tanks 50 and 50 so that the water in the tanks 50 and 50 flows through each other. A cylinder 54 is attached to the side surface of the transmission case 55, and a plunger 56 slidably provided on the cylinder 54 is pulled up by a spring 57. When the cam 59 fixed to the rotating shaft 58 hits the upper end of the plunger 56 and the plunger 56 moves up and down by the rotation and the spring 57, the water in the tank 50 is sucked into the cylinder 54 from the suction port 54a, and the discharge port It is made to discharge from 54b. A nozzle 61 is attached to the receiving plate 60, and water discharged from the discharge port 54b is sprayed onto the lowering claw 14a through the track 14b. The rotating shaft 58 is preferably rotated at the same rotational speed as the planting device 14. If comprised as mentioned above, the tank 50,50 exists in the comparatively low position of the both sides of an airframe, and a balance is good. Further, when turning at the end of the heel A, the rear part of the seedling transplanter is lifted and the nose is lowered. At this time, the water moves forward in the tanks 50 and 50, and the supporting force of the handle 10 is reduced. . In addition, the seedling C to which the nozzle 61 is transplanted is sprayed with water, so that the seedling can be well laid. Water is also applied to the inner surface of the nail 14b to improve seedling separation and soil separation, thereby preventing the posture of the transplanted seedling from being disturbed.
[Brief description of the drawings]
FIG. 1 is a side view of a seedling planting machine according to the present invention.
FIG. 2 is an enlarged side view of a part thereof.
FIG. 3 is a plan view thereof.
FIG. 4 is a side view of a part showing another embodiment.
FIG. 5 is a plan view thereof.
FIG. 6 is a plan view of a part showing another embodiment.
FIG. 7 is a front view of a part thereof.
FIG. 8 is an explanatory view of a wheel lifting device of the seedling transplanter.
FIG. 9 is a perspective view of a part of the device.
FIG. 10 is a rear view of the cut.
FIG. 11 is a side view of the seedling transplanter provided with a irrigation device.
FIG. 12 is a plan view of a part thereof.
[Explanation of symbols]
14 Planting device 15 Grooving tool 25 Notch 25a Lower edge 26 Blade 26a Notch 26b Lower edge A 畝 B Groove C Seedling

Claims (1)

It has a groove forming tool 15 that enters the soil from above and advances to make a groove B on the ground surface. The groove forming tool 15 is formed from a V-shaped notch 25 that opens after viewing from above and from both sides of the rear end. It has a pair of vanes 26 that are slanted more gradually than this and extend rearward so that the rear side is located on the left and right outer sides. The vanes 26 have a lower edge 26b below the notch 25 as viewed from the side. A seedling transplanting device which is cut out so as to be higher than the edge 25a, and the planting device 14 is provided so as to transplant the seedling into the groove B within the groove producing tool 15.

Images