JPH09271225A - Seedling planting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the seedling planting device compact by folding its side end when the device is not used. SOLUTION: This device is equipped with a seedling base 29 which is driven reciprocally to the right and left while slanting up forward and having plural mat seedlings mounted in lateral array and plural planting claws 38 which rakes one stub of seedlings off respective mat seedlings and transplants it by swiveling their tips in loop so that some side part of the seedling mount 29 and the transplanting claws 38 of the side part are folded over by rotating a shaft 31 along the tilt of the seedling mount 29.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a seedling planting machine in which the lateral width of a seedling transplanted in one stroke is significantly wider than the lateral width of a traveling vehicle body.

[0002]

2. Description of the Related Art A large-sized seedling planting machine is constructed such that, after a traveling vehicle body having a narrow width, a seedling-planting device having a wide width is attached to the seedlings so that the seedlings are transplanted into multiple rows in one stroke. Therefore, the lateral edge of the seedling planting device significantly protrudes from the traveling vehicle body, which is inconvenient for storage and transportation.

[0003]

In order to solve this,
Various proposals have been made, but they are still insufficient.

[0004]

In order to solve the above-mentioned problems, the present invention is directed to a seedling placing table 29 which tilts forward and upwards to place a plurality of mat seedlings side by side and is reciprocally driven left and right, and a seedling. It is equipped with a plurality of planting claws 38 for cutting and transplanting one seedling from each mat seedling by turning after forming a loop after the mounting base 29, and the outer and outer parts of the seedling mounting base 29. The seedling planting device is provided so that the planting claws 38 of (3) are rotated about axes 31 and 42 along the inclination of the seedling mounting table 29 and folded upward.

[0005]

This seedling planting device is mounted on the traveling vehicle body 1 to form a seedling planting machine, which is used in the field without folding the seedling table 29 and the planting claws 38. That is, when a plurality of mat seedlings are placed on the seedling mounting table 29 and operated, the ends of the mat seedlings are cut off by the corresponding planting claws 38 one by one and transplanted to the field, and the traveling vehicle body travels in one stroke. Multiple rows of seedlings that are significantly wider than the width of 1 can be created.

When the seedling planting machine is stored in a warehouse or moved, the lateral part of the seedling table 29 and the lateral part of the planting claws 38 are rotated around their respective shafts 31, 42. And fold it up. Then, the width of the seedling planting device 2 becomes narrower, and the storage and movement described above can be easily performed.

[0007]

[Effect] As described above, according to the present invention, the seedling mount 29
The lateral part and the lateral part of the planting claw 38 are rotated around the respective shafts 31 and 42 along the inclination of the seedling mounting table 29 and are folded up, so that they are compact when not in use. It is convenient for storage and movement.

[0008]

Next, an embodiment of the present invention will be described. A seedling planting device 2 is attached to the traveling vehicle body 1 to form a seedling planting machine.
The traveling vehicle body 1 is configured as follows. Frame 3
A main gear box 4 and a rear wheel gear box 5 are provided in front of and behind, and front wheels 6, 6 and rear wheels 7, 7 are arranged on the outside of each.
An engine 8 is provided on the frame 3, and its power is transmitted to the front wheels 6 and 6 and the rear wheels 7 and 7 via a transmission in the main gear box 4 and these rotate on the paddy field in the paddy field. The traveling vehicle body 1 is designed to move forward. The cockpit 9 is provided on the engine 8, and the steering handle 11 is provided on the handle frame 10 in front of the engine 8. With this, the front wheels 6 and 6 are steered to change the traveling direction of the traveling vehicle body 1. There is. The columns 12, 12 are the handle frame 10
Are provided on both sides of each of the five shelves 13, 13, ...
... is installed. On each of the shelves 4, four pieces of spare mat seedlings (or seedling boxes containing mat seedlings) having an area of about 30 cm × 60 cm are placed side by side in the front, rear, left and right. Further, each of the shelves 13 can be provided so that the left and right can be folded by being rotated around a central axis.

The auxiliary seat 16 can be constructed as shown in FIGS. This is not the main point, so
Not listed in. That is, the column 14 extends upward from the frame 3 after the cockpit 9 and the pair of rails 15 and 15
Is fixed horizontally. Auxiliary seat 16 has rails 15 and 1
It is movably attached to 5. A rack 17 is provided between the rails 15 and 15, and a pinion of a motor 18 provided in the auxiliary seat 16 is bitten by this. Step 19
Protrudes from the auxiliary seat 16 to the rear, and the petal 20 is mounted thereon. When the assistant on the auxiliary seat 16 steps on and tilts the petal 20 to the left, the motor 18 rotates and the auxiliary seat 16 moves to the left. When the petal is tilted to the right, the motor 18 reverses to rotate the auxiliary seat. 16 is designed to move to the right. If the upper seat portion of the auxiliary seat 16 is provided so as to rotate around the vertical axis, the operation of taking a spare mat seedling from the shelf 13 and supplying it to the seedling stand 29 described later is smoothly performed.

A column 21 extends upward from the rear part of the frame 3, and a pair of vertically parallel links 22, 22 are rotatably attached to the front and rear ends of the pair of links 22 and 22, respectively.
The front end of the hydraulic cylinder 24 is attached to the frame 3, and the piston rod 25 extends obliquely upward from this, and the lower end of an arm 26 integral with the upper link 22 and its projecting end are connected. When the oil discharged from the pump is supplied to the hydraulic cylinder 24 by switching the lifting valve 82 (FIG. 9), the piston rod 25 projects and the vertical frame 23 rises, and when the oil returns to the tank, the vertical frame 23 is descending. As is well known, the operation of the up-and-down valve 82 is performed by the cockpit 9
This is done manually by operating the elevating lever on the left side of the, and automatically by the operation of the sensor float 57 described later. Then, the vertical frame 23 is lowered by operating the lifting lever,
After the sensor float 57 contacts the mud surface, it is automatically performed by the vertical movement of the tip of the sensor float 57.

The seedling planting device 2 is constructed as follows. The seedling planting gearbox 27 has a rolling shaft 2 at the bottom of the vertical frame 23.
It is attached so that it can swing freely. A seedling mounting table 29 inclined forward and upward is arranged on the seedling planting gear box 27 and attached to be movable left and right. This seedling mounting table 29 is a partition wall in the front-rear direction, and has 29-1, 29-2 ,.
The mat seedlings are divided into individual pieces and placed vertically on each of them. In addition, this seedling mounting table 29 is divided into sections 29
-2 and 29-3 and 29-8 and 29-9 contact the wall plates 30-2, 30-3, 30-8, 30-9 extending upward,
The upper ends of the axes 31, 3 along the inclination of the seedling stand 29
It is rotatably provided. When not in use, the partitions 29-1, 29-2 and the partitions 29-9, 29
The -10 is designed to be rotated 180 degrees around the shafts 31 and 31 so as to be folded (FIG. 3). In addition, the auxiliary stand 29
An a is foldably attached to the front end.

A pair of sleeves 32, 32 are used for the seedling planting gearbox 2.
The three seedling planting frames 33, 33, 33, which are fixed to the left and right of 7 (FIGS. 4 and 5) and are provided in parallel, are connected to the seedling mounting table 2 from these.
It extends below the rear end of the 9 and extends rearward. A seedling receiving plate 34 having an L-shaped cross section is attached to the seedling planting frames 33, 33, 33 so as to close the rear end of the seedling mounting table 29. In addition,
Both sides of the seedling receiving plate 34 are composed of divided plates 34a, 34a and are provided so as to be rotatable (FIG. 3) or detachable around the vertical axis with respect to the inner seedling receiving plate 34. A pair of side frames 3
5, 35 are arranged outside the rear ends of the left and right seedling planting frames 33, 33, and rotating cases 37, 37 are fixed to both ends of the respective horizontal shafts 36, 36 .... A pair of studs 38, 38 are provided on each rotating case 37,
When the rotating case 37 is rotated by the horizontal shaft 36, the planet gears in the rotating case 37 make a turn while maintaining a similar posture, and pass through the seedling receiving plate 34 or the seedling intakes of the dividing plates 34a, 34a in the initial stage of descending. 1 from the edge of the mat seedling protruding from the seedling mount 29
The seedlings are cut off and the bottom is transplanted to the field.

The support frames 39, 39, ... Are the rear ends of the left and right seedling planting frames 33, 33 and the side frames 35, 35.
It protrudes obliquely upward from. The inner sleeves 40, 4 from the upper ends of the pair of supporting frames 39, 39, ...
0 and the outer sleeves 41, 41 project outward and inward, and their ends rotate about the oblique shafts 42, 42, ... Along the inclination of the seedling mounting table 29, and the side frame 3
5,35 can be folded up 90 degrees. For details, as shown in FIG. 6, a step portion 41 a provided at the inner end of the outer sleeve 41 is provided so as to be fitted into the outer end of the inner sleeve 40. The shafts 42, 42 are fixed to the ends of the inner sleeve 40, and the inner ends of the support plates 43, 43 are rotatably attached thereto. Bolts 44 passed through the long holes 43a, 43a at the outer ends of the support plates 43, 43 ,.
The outer sleeve 41 is provided so as to be able to move to the left and right, and when the hooks 45, 45 are hooked with the rings 46a, 46a to fold the stoppers 46, 46, the support plate 43 ,.
43 is designed to be pulled to the left. Therefore, after raising the stoppers 46, 46 to remove the rings 46a, 46a from the hooks 45, 45 and pulling the outer sleeve 41 outward to remove the step portion 41a from the inner sleeve 40, the outer sleeve 41 or the side frame. Raise 35. Then
These rotate around the shafts 42, 42 and are folded. When returned to the original state, the inner sleeve 40 and the outer sleeve 41 are firmly fixed and integrated as shown in FIG. Spring 4
7 (FIG. 4) is provided between the inner sleeve 40 and the outer sleeve 41, so that the folded side frames 35, 35 are drawn together to maintain their postures.

The depth adjusting shaft 48 (FIG. 4) is the seedling frame 3
3 is attached to the lower abdomen of the front end, and is rotated by an operator's operation of a lever (not shown). A pair of auxiliary frames 49, 49 project forward from the side frames 35, 35, and side adjustment shafts 50, 50 with their axes overlapping the depth adjustment shaft 48 are rotatably attached thereto. There is. The square shafts 51, 51 are movably attached to the side adjusting shafts 50, 50 left and right, and when moved inward, their inner ends engage with the outer ends of the depth adjusting shafts 48, respectively. The adjusting shafts 50, 50 are designed to be united. Operating rod 5
2, 52 are attached to the side adjusting shafts 50, 50 so as to be movable left and right, and the angular shafts 51, 51 are connected by connecting rods 53, 53. The operating rods 52, 52 can be pulled out by springs 54, 54 and turned by knobs 55, 55,
Each inner end has a nut 5 that is integrated with the depth adjusting shaft 48.
It is screwed to 6,56. Therefore, in FIG. 4, when the knob 55 is turned to separate the operating rod 52 from the nut 56, the operating rod 52 is pulled by the spring 54 and further moved outward, and the inner end of the square shaft 51 is moved to the depth adjusting shaft. Aside from the outer end of 48, side adjustment shaft 50 separates from depth adjustment shaft 48. It should be noted that when these are operated in reverse, they are united as shown in FIG. The folding of the side frames 33, 33 is
This is done after separating these.

Five floats 57, 57, ... arranged side by side
Are arranged below the respective seedling planting frames 33, 33, 33 and the side frames 35, 35. Depth adjusting shaft 48 and side adjusting shafts 50, 50 to arms 58, 5
8 ... extends to the bottom of the diagonal and each tip and float 5
The rear portions of 7, 57, ... Are connected by a horizontal axis, and when the traveling vehicle body 1 moves forward, it slides on a mud surface while swinging around the horizontal axis. When the depth adjusting shaft 48 rotates, the rear ends of the arms 58, 58, ...
57, ... Rear end part and frames 33, 33, 33, 3
The intervals of 5,35 are changed, and the implantation depth of seedlings is adjusted.
The center float 57 serves as a sensor float, and the elevation valve 82 is automatically operated by an input from this.

The power transmission path of the seedling planting device 2 is constructed as shown in FIG. That is, the power of the engine 8 is transmitted from the input shaft 59 to the main shaft 60. The power reaches the lead cam shaft 62 via the transmission 61, and the rotation of the lead cam shaft 62 causes the lateral movement rod 63 to reciprocate left and right, so that the seedling table 29 is reciprocated left and right. Tooth wheels 64, 64,
64 is provided on the main shaft 60, and the seedling planting frames 33, 33,
Tooth wheels 65, 65, 65 are fixed to the horizontal axes 36, 36, 36 of 33, and the chains 66, 6 are provided to the corresponding pairs.
6, 66 are wrapped around. The outer horizontal axis 36,
The toothed wheels 67, 67 are fixed to the 36, and the inner sleeves 40, 4
Tooth wheels 69, 69 are fixed to the inner ends of the inner shafts 68, 68 in 0, and the chains 70, 70 are wound around the corresponding pairs. Claw 7 pushed outward by springs 71, 71
2a, 72a are provided at the outer ends of the inner shafts 68, 68 and are fixed to the outer shafts 73, 73 in the outer sleeves 41, 41.
2b and 72b bite on this (Fig. 6). Claw 72a,
72a and claws 72b, 72b are shaft couplings 72, 72 whose bites separate when the sleeves 41, 41 move outward.
Is configured. Tooth wheels 74 and 74 are fixed to the outer ends of the outer shafts 73 and 73, and tooth wheels 75 and 7 are attached to the outer horizontal shafts 36 and 36.
5 is fixed, and each corresponding pair of chains 76,
When the main shaft 60 is rotated, the horizontal shafts 36, 36 ,.
It is designed to be rotated counterclockwise in FIG.

A resistance rod 77 is provided on the float 57 so that the tip of the resistance rod 77 is driven into the mud and driven by a motor 78 (FIGS. 7 and 8). The current value 79 of the motor 78 is input to the control device 80, and the float 57 determines the hardness of the mud running on the mud based on both the vehicle speed value 81 input from the traveling vehicle body 1 (FIG. 9). ). Control device 80
Outputs to the lift valve 82 by the input from the sensor float 57, and when the tip of the sensor float 57 gliding on the mud surface rises too much, oil is sent to the hydraulic cylinder 24 to send the seedling planting device 2
When the tip of the seedling planting device 2 is raised too much, the oil in the hydraulic cylinder 24 is returned to the tank to lower the seedling planting device 2. When the mud is judged to be "hard" based on the judgment of the hardness of the mud, the sensitivity of the raising and lowering system of the seedling planting device 2 becomes insensitive, and when the mud is judged to be "soft", it is reversed. For example, the control target value of the front-back inclination of the sensor float 57 can be corrected so that the sensing sensitivity becomes sensitive.

As shown in FIGS. 10 and 11, the tube 83 is fixed upward at the rear portion of the seedling frame 33 on the outer side, the outer sleeve 41 is extended inward, and the tube 84 is fixed downward at the inner end.
The cylinders 83 and 84 are rotatably overlapped and provided. Then, the rotation in the seedling planting frame 33 is configured to be transmitted to the horizontal shaft 36 of the side frame 35 by gears or shafts in the cylinders 83 and 84. Then, when not in use, the outer rotating case 37,
37, the float 57, etc. rotate around the cylinder 83 and are folded as shown by the chain line in FIG. 10, and the lateral width of the seedling planting device 2 becomes narrow.

[Brief description of drawings]

FIG. 1 is a side view of a seedling plant to which the present invention has been applied.

FIG. 2 is a plan view thereof.

[Fig. 3] A plan view of the seedling plant with both ends folded.

FIG. 4 is a plan view of a part thereof.

FIG. 5: Transmission mechanism diagram of part 1

FIG. 6 is an enlarged cut-away plan view of a part thereof.

FIG. 7 is a plan view of the float.

FIG. 8 is a plan view thereof.

FIG. 9 is a block circuit diagram of the lifting device.

FIG. 10 is a plan view of a part of another seedling planting device.

FIG. 11 is a side view thereof.

[Explanation of symbols]

 1 traveling vehicle 2 seedling planting device 29 seedling mounting table 31 axis 38 planting claw 42 axis

Claims (1)

[Claims] 1. A seedling mounting table 29 in which a plurality of mat seedlings are placed side by side inclining forward and upward and backward and left and right are reciprocally driven, and after the seedling mounting table 29, the tip turns into a loop and turns. Is equipped with a plurality of planting claws 38 for cutting out and transplanting one seedling from the mat seedling of No. 3, and the planting claws 38 on the outer side and the outer side of the seedling mounting table 29 are the shafts 31 along the inclination of the seedling mounting table 29. , 42, which is provided so as to rotate around 42 and be folded upward.