JP3520132B2 - Seedling machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is useful for a riding-type field planting and seedling plant. 2. Description of the Related Art A seedling plant is mounted on a rear part of a riding type traveling body (tractor) so as to swing around a horizontal axis, and a rear part thereof is supported by a tail wheel. With both of them, the seedling planting apparatus is maintained at a certain height from the ground. Further, the pipe is fixed to the fuselage in the vertical direction, and the supporting leg with the tail wheel is slidably inserted into the pipe, and the pins are fixed to both. Then, a plurality of holes are provided vertically on the support leg, and the height of the tail wheel is adjusted by replacing a pin with one of these holes. The seedling transplanter uses a gauge wheel or a hydraulic cylinder to determine the height of the horizontal axis to set the planting depth of the seedlings, and to raise and lower the tail wheel to raise the seedlings. The tilt angle of the body of the planting device in the front-rear direction is adjusted and used. If the tail wheel comes to a hard ground or a soft ground during the work, the amount of sinking with respect to the ground surface changes, and the inclination angle of the aircraft changes. Then, the transplanted seedlings may be tilted forward or backward to deform balls such as cabbage and Chinese cabbage. In other words, if the soil is hard and soft, the inclination of the fuselage cannot be corrected by manually moving the tail wheel up and down, and adjustment is troublesome even in a partially hard and soft field. [0004] In order to solve the above-mentioned problems, the present invention relates to a machine 18 of a seedling plant 2 having a seedling mounting table 21 and a seedling tool 30 for transplanting seedlings thereon. The front part is provided at the rear part of the traveling vehicle body 1 so as to swing around the horizontal axis 12, and the tail wheel 32 supporting the rear part of the seedling plant 2 by touching the left and right valleys B of the ridge A moves the tail wheel up and down. An angle sensor 36 is provided at the rear of the seedling plant 2 so as to move up and down by the device 34, and detects the inclination of the seedling plant 2 in the front-rear direction. Rutotomoni provided so as to keep the angle of inclination of the seedling planting apparatus 2 a wheel 32 up and down to within a predetermined range, the height sensor glide upper surface of the ridge a 3
8 and the horizontal axis 12
Moving up and down so as to maintain a constant height from the upper surface of ridge A
And a seedling planting machine characterized in that: [0005] Since this seedling planter is configured as described above,
The operation is carried out by placing group seedlings such as cabbage and lettuce on the seedling mounting table 21. Then, the seedling planting tool 30 transplants the seedlings on the seedling mounting table 21 one by one into the field. At this time, the seedling plant 2 is maintained in a predetermined posture with the front part of the body 18 supported by the horizontal axis 12 at a fixed height and the rear part supported by the tail wheel 32 from the ground. When the seedling plant comes to a place where the ground is soft, the tail wheel 32 sinks and the seedling plant 2 tilts backward and downward. And when the slope exceeds the set limit,
The tail wheel vertical movement device 34 is automatically operated by the information from the angle sensor 36, the tail wheel 32 is pushed down, the rear part of the seedling plant 2 rises, and the inclination of the seedling plant 2 in the front-back direction is determined. Returns to within range. When the seedling plant operating in this state comes to a hard place on the ground, the sinking amount of the tail wheel 32 decreases, and the seedling plant 2 tilts rearward and upward. Then, contrary to the above, the tail wheel 32 automatically rises, and its inclination returns to the predetermined range. As described above, according to the present invention, the seedling plant 2
The inclination in the front-rear direction is automatically kept within a certain range, so that the transplanting posture of the vegetable seedling is stabilized and the ball grows well. Next, an embodiment of the present invention will be described. FIG.
As shown in FIG. 2, a seedling plant 2 is mounted after the traveling vehicle body 1 to form a seedling plant. The traveling vehicle body 1 is provided with a pair of front wheels (not shown) and a rear wheel 4 before and after the machine base 3, respectively, and is configured to rotate in valleys B on the left and right sides of the ridge A and move forward. A link 6 having a hitch 5 at the rear end is a horizontal axis 7
The piston rod 9 which is attached to the machine base 3 so as to rotate around and is connected to the arm 6a of the piston rod 9 projecting rearward from the hydraulic cylinder 8, so that the hitch 5 can be moved up and down as the piston rod 9 comes and goes. I have. A work machine frame 10 is detachably provided on the hitch 5. The gear box 11 is fixed to the center of the working machine frame 10, and the horizontal shaft 12 projects left and right from this. The power of the engine of the traveling vehicle body 1 is transmitted to the horizontal shaft 12 via the propeller shaft 13 and the belt 14. ing. [0008] The seedling plant 2 is configured as follows. Seedling gear box 1 in which the tips of seedling transplantation frames 15, 15 are swingably attached to horizontal axis 12 and fixed to the rear end.
Implanting frames 17, 17 extend from the left of the plants 6, 16 to the rear of the obliquely and upwards, and these constitute the bodies 18, 18 of the seedling plant 2. Seedling seedlings 19, 19 having seedling openings 19 a, 19 a opened rearward are fixed laterally above rear portions of the planting frames 17, 17. The rods 20, 20 are the seedling planting frame 1.
The lower abdomen of the seedling mounting tables 21 and 21 is supported by the respective seedling receiving plates 19 and the tips of the supporting rods 20 so as to slide left and right. Collective seedlings such as cabbage and lettuce are placed on the seedling mounting tables 21 and 21 and sent backward by a belt on the lower surface. The lower surface of the rear end is open, and the rear end row of the collective seedlings is the seedling receiving plates 19, 19.
It comes to be listed. The transmission case 22 is fixed to the left of the left seedling plant gear box 16, the lead cam shaft 23 protrudes rightward from this, and the rotation of the horizontal shaft 12 causes the seedling frame 15, the seedling plant gear box 16, and the transmission device in the transmission case 22 to rotate. Is transmitted via The metal 24 is mounted on the lead camshaft 23, and reciprocates left and right when the metal is rotated as described above. Moving rod 25 is metal 2
4, the seedling mounts 21, 21 are fixed to the supporting rods 26, 26 which move at the same time.
1 is reciprocally driven left and right. When viewed from the left side, the first oval case 27, 27 is provided so as to rotate clockwise about the lower axis at the right of the implantation frames 17, 17, and is slightly longer than this. The two turning cases 28, 28 are provided so as to rotate counterclockwise around a lower axis at the right of the tip of the first turning cases 27, 27.
When turning upward and downward during rotation, the second turning case 2
When the first and second turning cases 27 and 27 face forward and backward, respectively, the second turning cases 28 and 28 turn in the opposite backward and forward directions. ing. The implantation cases 29, 29 are the second turning cases 2
8 and 28 are attached to the right of the tip of the plant.
Numerals 0 and 30 are provided downward so as to be able to turn in the vertical elliptical orbit C while maintaining the same posture. Then, in the descending stroke, the tips of the seedling seedlings 30, 30 become the seedling openings 19a, 19, respectively.
When passing through a, take out the seedling of one plant on the seedling receiving plate 19,
At the lower end, the seedling is inserted into the ridge A and the seedling is transplanted. A pipe 31 is fixed to the rear end of the seedling planting frame 15 in a vertical direction, and a supporting leg 33 to which a tail wheel 32 is attached is slidably inserted therein. An electric cylinder 34 is then provided in a vertical orientation, from which the rod 3 projecting downwards
The lower end of 5 is connected to the leg 33. Angle sensor 36
Is provided on the seedling-planting frame 15 and transmits the tilt angle of the seedling-planting device 2 in the front-rear direction to the control device 37. When the angle detected by the angle sensor 36 exceeds a predetermined range, the control device 37
With this command, the electric cylinder 34 moves up and down the rod 35, the tail wheel 32 moves up and down, and the inclination angle returns to a predetermined range. The seedling plant shown in the figure is a two-row plant in which a pair of bodies 18 and 18 swing simultaneously, but is configured to swing independently, and a tail wheel 32 is provided at the rear of each planting frame 15.
Can be provided. A height sensor 38 that slides on the upper surface of the ridge A is provided on the lower abdomen of the gear box 11. When the ridge A is high, the rear end rises, and when the ridge A is low, the rear end is lowered. Oil can be supplied to and discharged from the hydraulic cylinder 8, and the hitch 5 can be automatically moved up and down to keep the horizontal axis 12 at a constant height from the upper surface of the ridge A. Then, the vertical movement of the horizontal axis 12 changes the inclination angle of the seedling plant 2 in the front-back direction. In this case as well, the angle sensor 36 detects this change and the control device 37
The electric cylinder 34 is actuated based on the upper part, and the posture of the seedling plant 2 is automatically kept within a certain range.

[Brief description of the drawings] FIG. 1 is a side view of a part of a seedling plant to which the present invention is applied. FIG. 2 is a plan view of a part thereof. [Explanation of symbols] 1 Running body 2 Seedling plant 12 Horizontal axis 18 aircraft 21 Seedling stand 30 Seedling plant 32 tail wheel 34 electric cylinder 36 Angle sensor

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masakatsu Araki 1st Hachikura, Tobe-cho, Toyo-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. (56) References JP-A-5-207808 (JP, A) JP-A-58-1222 (JP, U) JP-A-60-177717 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) A01C 11/02

Claims (1)

(57) [Claims 1] The front of the body 18 of the seedling plant 2 having the seedling mounting table 21 and the seedling tool 30 for transplanting the seedlings thereon is mounted on the traveling vehicle body 1.
Is provided at the rear portion so as to swing around the horizontal axis 12,
A tail wheel 32 that supports the rear part of the seedling plant 2 by touching the valley B on the left and right sides of A is provided in the rear part so as to move up and down by a tail wheel vertical movement device 34, and the inclination of the seedling plant 2 in the front-rear direction is provided. The tail wheel vertical movement device 3
4 is provided so as to move the tail wheel 32 up and down based on information from the angle sensor 36 to maintain the inclination angle of the seedling planting apparatus 2 within a certain range.
And a height sensor 38 that slides on the upper surface of the ridge A.
The horizontal axis 12 is moved to the ridge A by the vertical movement of the height sensor 38.
It is configured to move up and down so as to keep it at a certain height from the upper surface of
A seedling plant characterized by the above -mentioned.