JP3498441B2 - Seedling machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling plant. 2. Description of the Related Art Conventionally, in a seedling plant in which a seedling planting device is mounted after a traveling body having front wheels and rear wheels, the traveling body is
Since the load acts more on the rear wheels than on the front wheels, when the tillage sinks in a deep place, the amount of the sinking is larger on the rear wheel side than on the front wheel side, and the traveling vehicle body leans slightly downward. [0003] When the running vehicle body tilts backward and downward as described above, the seedlings to be transplanted by the seedling transplanter are inclined backward and tilted. [0004] In order to solve the above-mentioned problems, the present invention provides a traveling vehicle 1 having a front wheel 6 and a rear wheel 7.
After that, the upper link 10 and the lower link 11 are
Only, through the work <br/> industry frame 29 provided at the rear end of the upper link 10 and lower link 11 is mounted a seedling planting apparatus 2, the working frame 29
Can be pivoted back and forth at the rear end of the lower link 11 by the pin 32.
The provided by the spring 35 to oscillate the working frame 29 on the front side of the arrangement of tilting the <br/> NaeUe device 2 on the front side in the seedling planting machine, tilling machine is Te depth Kuna' of the upper link 10 and lower link 11 Inclined posture
The seedling plant is characterized in that the strength of the spring 35 is changed due to the change of the work frame 29 and the work frame 29 is rocked forward. When the seedling planter is operated in a field, the seedlings are transplanted by the seedling plant 2 while the traveling vehicle body 1 is running by the rotation of the front wheel 6 and the rear wheel 7. Then, in a place where the cultivator is deep, the traveling vehicle body 1 is inclined slightly backward and downward, but the cultivator becomes deeper.
Of the upper link 10 and the lower link 11
Then, the strength of the spring 35 is changed, the work frame 29 is swung forward, and the seedling plant 2 is tilted forward to correct the seedling plant 2.
As a result, the posture of the seedling to be transplanted is returned from the state in which the seedling is about to fall down to the upright posture. As described above, according to the present invention, when the cultivator is deep and the traveling vehicle body 1 is tilted backward and downward, the posture of the seedling transplanted by the seedling planting device 2 tends to fall backward. It can be returned from the state to the upright posture. 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 configured as follows. A main gear box 4 is fixed in front of the frame 3, and a rear wheel gear box 5 is provided thereafter. A pair of front wheels 6 and rear wheels 7 are arranged on both sides of the main gear box 4 and the rear wheel gear box 5, respectively, and these are rotated by the power of an engine 8 provided at the center of the frame 3. . The support 9 extends upward from the rear of the frame 3 and is connected to the upper link 1.
0 and the ends of the lower link 11 are horizontal pins 12, 1 respectively.
At 3 it is mounted rotatably. The tip of the elevating cylinder 14 is attached to the frame 3, from which the piston rod 15 projects obliquely and upward, and the protruding end is joined to the end of an arm 16 integrated with the upper frame 10. A floor 17 is provided on the main gear box 4 and the frame 3, and a cover 18 projecting upward from the floor 17 covers the engine 8, and a seat 19 is provided thereon. A steering handle 20 is arranged in front of the seat 19, and the front wheels 6 are steered. Four columns 21 extend upward from the floor 17 so as to surround the steering handle 20 and the seat 19. A pair of auxiliary struts 22 is arranged between the pair of rear struts 21 and further behind them, and a horizontal frame 23 is fixed on these struts 21 and the auxiliary struts 22 to form a cabin. Roof 24 is horizontal frame 2
3 mounted on. A shelf 25 is provided at an upper portion on both sides in the cabin, and a spare group seedling 26 is placed at a position where it does not interfere with the operator who is steering the seedling planting machine. A pair of doors 27 rotate around the vertical axis on the front of the cabin, so that the operator can get on and off from the front of the seedling planter (FIG. 2). In addition, the window frame 28 on the rear surface of the cabin rotates about the upper horizontal axis and opens and closes, so that the spare group seedlings 26 and the seedling table 42 described later can be supplied through the opened windows. (FIG. 1). The seedling plant 2 is configured as follows.
A work frame 29 having a U-shaped cross section is vertically arranged, and a horizontal pin 31 at the rear end of the upper link 10 is inserted into a long hole 30 in the front-rear direction (FIG. 3). The rear end of the lower link 11 is rotatably attached to the work frame 29 with a pin 32. An arm 33 extends upward from the working frame 29. A rack 34 is slidably provided in the direction of the upper link 10, and both ends of a spring 35 are hooked on the rear end and the protruding end of the arm 33. A motor 36 is attached to the upper link 10, and its pinion 37 and the above-mentioned rack 34 are engaged. A gear box 38 is mounted on the lower end of the working frame 29 so as to be swingable around a rolling shaft in the front-rear direction. Three seedling frames 39 extend rearward from the gearbox 38 (or a sleeve extending laterally therefrom) (FIG. 2).
A seedling receiving plate 40 having an L-shaped vertical section is fixed laterally to the seedling planting frame 39, and the upper and lower ends are supported by the seedling receiving plate 40 and the slider 41.
8. The seedling mounting table 42 is inclined forward and upward, and seven fences 43 in the front-rear direction are arranged side by side, and six group seedlings are mounted between the adjacent fences 43. The exit at the lower end of the seedling mounting table 42 is closed by the seedling receiving plate 40,
The lower end of the group of seedlings placed on the seedling mounting table 42 projects from this and rides on the seedling receiving plate 40. In addition, each fence 43 is configured in a shape in which a plate is bent in a mountain shape, and the lower part is opened. A horizontal bar 44 is provided on the gear box 38 so as to reciprocate left and right by rotation of a lead cam (not shown).
Both ends are connected to the back surface of the seedling mounting table 42 by supporting rods 45 (FIG. 1), and the seedling mounting table 42 is reciprocated right and left by the power of the engine 8. A rotating shaft 46 protrudes from both sides of the gear box 38, and a crank-shaped arm 4
7 are provided (FIG. 3). Drive shaft 48 and driven shaft 49
Are rotatably mounted on the back surface of the seedling mounting table 42, and a plurality of belts 52 are
Is wound around to form a seedling sending device 53. And
The belts 52 are arranged in a pair on the left and right sides between each adjacent fence 43. The ratchet 60 is constructed as follows. A pair of ratchet wheels 54 is fixed to the drive shaft 48 inside the second fence 43 from the outside. In the figure, a groove is provided in the cylindrical surface of the drive shaft 48, and the protrusion of the ratchet wheel 54 is engaged with the groove to integrate them (FIG. 4). The bases of a pair of levers 55 are rotatably mounted on the drive shaft 48 by collars 56 next to the respective ratchet wheels 54 and are rotatably mounted on the drive shafts 48.
Then, the rubber stopper 58 fixed to the counterclockwise direction (FIG. 4) is brought into contact with the seedling mounting table 42 to stop its rotation. A pair of claws 59 are rotatably attached to the respective levers 55 with pins, and are pulled clockwise by springs (not shown) so that the respective tips are in the ratchet wheel 5.
4 bites. When the seedling table 42 is pushed by the horizontal bar 44 and comes to the left end (or right end), the rotating right (or left) arm 47 hits the right (or left) lever 55,
This is pushed clockwise in FIGS. 3 and 4. Then, the pawl 59 of the right (or left) lever 55 rotates the ratchet wheel 54 in the same direction, the drive shaft 48 rotates the belt 52 via the roller 50, and the collective seedlings on the belt 52 are transferred to the seedling receiving plate 40. It is paid out. Note that the rotation of the arm 47 proceeds, and this
When the lever 55 is separated from the lever 5, the lever 55 is pulled back in the counterclockwise direction by the spring 57, and the stopper 58 hits the seedling mounting table 42 and stops its rotation. At this time, the pawl 59 slides counterclockwise on the outer periphery of the ratchet wheel 54, and the ratchet wheel 54 and the belt 52 do not rotate counterclockwise. The fence 43 is cut off on the ratchet wheel 54, and the cut off portion is covered with a lid 61 having the same shape. The lid 61 is configured with a foot 62 and is detachable. Therefore, when the lid 61 is removed, the ratchet 60 appears. A pair of rotating cases 63 are arranged on both sides of the rear end of each seedling planting frame 39 so as to rotate around the central horizontal axis under the power of the engine 8. 1
A pair of seedling seeding tools 64 are provided on each of the rotating cases 63, and are turned so as to maintain a downward posture as shown in FIG. 3 during the rotation. The pair of seedlings 64 alternately pass through the seedling receiving openings of the seedling receiving plate 40 between the adjacent fences 43 in the descending stroke of the turning, and the ends of the group seedlings pushed upwards. And transplant it to the mud surface below. Three T-shaped floats 6 viewed from above
5 are arranged side by side, and the seedling plant 6
No. 4 prepares the land for transplanting the seedlings in advance. A switch 66 is provided on the seedling table 42 between the pair of belts 52 (FIGS. 3 and 6).
When the vehicle passes over 6a, it rises and informs that a lamp or a buzzer may supply the spare group seedling 26. [0015] As shown in FIG.
6 is provided on the seedling mounting table 42, and when a large number of group seedlings are mounted on the seedling mounting table 42, the actuator 67a falls down,
When the group seedlings are pulled out by the seedling feeding device 53 and cut off by the seedling seeding tools 64 and become small (when the upper end passes by), they stand up. And the actuator 67a
Falls, the motor 36 rotates the pinion 37 counterclockwise to move the rack 34 forward, and when the actuator 67a stands up, the motor 36 rotates the pinion 37 clockwise to move the rack 34 backward. It is made like this. When the rack 34 comes to the front or rear end by the movement, the switch 68 or the switch 69 is operated, and the rotation of the motor 36 is stopped. That is, when a large amount of group seedlings are placed on the seedling mounting table 42, the seedling mounting table 42, the gear box 38 and the like tilt down backward due to the weight of the seedlings, and the seedlings transplanted by the seedling plant 64 tilt down. There is a tendency. According to the above configuration, in such a case,
The rack 34 pulls the spring 35 forward, the arm 33 is pulled, the work frame 29 turns counterclockwise around the pin 32, and the rear end of the long hole 30 is drawn toward the pin 31, and the above-mentioned rearward fall The posture is corrected. When the mass of the seedlings decreases and the weight of the seedlings decreases, the seedling mounting table 42 and the gear box 38 and the like move upward by the spring 35, and the seedlings transplanted by the seedling plant 64 tend to lean forward. At this time, the rack 34
Moves backward, the spring 35 is loosened, the work frame 29 swings so that the pin 31 approaches the front end of the elongated hole 30, and the tendency of the seedling to fall forward is corrected. As shown in FIG. 7, the strength of the spring 35 can be changed depending on the inclination angle of the upper link 10 and the lower link 11. That is, in the seedling transplanter, the front wheel 6 and the rear wheel 7 rotate on the cultivator of the paddy field, and the float 65 slides on the mud surface. Therefore, when the cultivator is deep (Fukada),
Sinks and the links 10 and 11 assume a nearly horizontal attitude, and the links 10 and 11 incline rearward and downward when they are shallow (Asada). Here, in the traveling vehicle body 1, since the load acts on the rear wheel 7 more than the front wheel 6, when the tillage sinks in a deep place, the sinking amount becomes larger on the rear wheel 7 side than on the front wheel 6 side. The traveling vehicle body 1 leans slightly downward. Then, the seedling transplanted by the seedling transplant tool 64 tends to tilt backward. At this time, when the links 10 and 11 assume a horizontal posture in Fukada, both ends of the spring 35 become longer and the tension thereof increases, and
The upper end of the seedling 3 is pulled forward, and the work frame 29 is turned counterclockwise to return the seedling that is about to fall back to the upright posture.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a seedling plant to which the present invention is applied. FIG. 2 is a plan view thereof. FIG. 3 is an enlarged side view of a part thereof. FIG. 4 is an enlarged cut-away side view of a part thereof. FIG. 5 is a cutaway bottom view. FIG. 6 is a perspective view of a part thereof. FIG. 7 is an operation diagram in Fukada and Asada of a part thereof. [Explanation of Signs] 1 ... Running body, 2 ... Seedling plant, 6 ... Front wheel, 7 ... Rear wheel, 1
0 ... upper link, 11 ... lower link, 29 ... work frame , 32 ...
Pin, 35 ... spring

Continuation of the front page (56) References JP-A-56-151405 (JP, A) JP-A-57-5604 (JP, A) JP-A-3-108316 (JP, U) JP-A-3-105214 (JP) (U, U) Shokai 64-52416 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 11/02

Claims (1)

(57) Claims 1. An upper link 10 and a lower link 11 are rotatably provided behind a traveling vehicle body 1 having a front wheel 6 and a rear wheel 7 ,
Through the working frame 29 provided at the rear end of the upper link 10 and lower link 11 is mounted a seedling planting device 2, under the working frame 29
A pin 32 is provided at the rear end of the link 11 so as to be pivotable back and forth.
Only, in the configuration of the seedling planting machine tilting the NaeUe device 2 is swung working frame 29 on the front side by a spring 35 on the front side, plowing machine deep
And the inclination attitude of the upper link 10 and the lower link 11 changes.
A seedling plant characterized in that the strength of the spring 35 is changed due to the change of the structure and the work frame 29 is swung forward.