JP3143945B2 - Transplant device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanting device such as a vegetable transplanter for planting seedlings on a seedling mounting table in a field.

[0002]

2. Description of the Related Art As a transplanting device of a transplanting machine for transplanting seedlings ,
For example, a pair of left and right planting claws that perform a long closed loop motion up and down in a predetermined trajectory and a seedling pushing tool provided at an interval therebetween are provided, and the planting claws are closed at the upper part of the trajectory and supplied to a predetermined position. The seedlings are pinched, the planting claws open at the lower part of the trajectory, and the seedling pushing tool projects downward, so that the pinched seedlings are planted in the field. In this type of implant device
During the work, for some reason the planting nails are set on the seedling
And the movement stops.
There were times when the carlock was in effect.

[0003]

An implanting device of this kind is:
Due to its transmission structure, the planting claws can be moved in the opposite direction.
In general, those that do not fit are not
When the mechanical lock state is
Disassemble the part that is causing the
Although it must be, the engaging part of the planting claw in the mechanical lock state
Has accumulated a great deal of stress,
Direct decomposition was dangerous. Therefore, the present invention
Release the stress caused by the mechanical lock in advance to ensure a safe state
To enable mecha lock recovery work
And

[0004]

In order to solve the above problems, the present invention has the following arrangement. That is, that written to the present invention transplant device takes the rotating case to be rotated
The implanted claw of the implanted rod moves with a long trajectory up and down
In the implanting device configured as described above, the implanted nail is
When the movement stops due to engagement with the member,
Release the fixed part that receives the stress caused by the stop.
A stress releasing means for removing the stress by removing
It is characterized in that was.

[0005]

[Action] The planting claw bites into another member to cause a mechanical lock.
When this is done, the mechanical lock
After releasing the generated stress,
It is safe because it can be repaired.

[0006]

FIG. 1 is a perspective view showing a transplantation apparatus according to an embodiment of the present invention.
It is an overall view of a vegetable transplanter obtained , and this vegetable transplanter 1
The engine 2 and the traveling unit transmission case 3 are arranged at the front of the fuselage, and the front wheel transmission cases 6 and 6 are obliquely rearwardly attached to the tip of the rotating cylinders 5 and 5 protruding from the left and right side surfaces of the traveling unit transmission case 3. A front transmission frame 9 having transmission means therein is fixedly connected to a lower end of the front wheel transmission case, which supports the front wheels 7, 7 as propulsion wheels at the lower end of the front wheel transmission case. The rear transmission frame 1 is provided with a transmission section transmission case 10 at its rear end, and further incorporates a transmission means from the transmission section transmission case.
1 is extended rearward, and an implanting device 12 is provided at the rear end. A rear wheel support rod 14 is horizontally mounted in the vicinity of the front of the transplantation section transmission case 10, and rear wheel support arms 15, 15 are attached to left and right ends thereof so as to be vertically rotatable, and a lower end of the rear wheel support arm is provided. The rear wheels 16 are pivotally supported by the section. Also, the frame 17 integrally formed with the rear wheel support rod 14
An earth digging device 18 and a pressure reduction device 19 are attached.

At the upper part of the fuselage, a seedling table 21 slightly inclined so that the front part is positioned higher is slidably supported by a horizontal frame 22 and rails 23 left and right, and is adjacent to the rear end of the seedling table. A seedling receiving plate 26 having a seedling outlet 25 formed at an appropriate position is provided integrally with the horizontal frame 22. The seedling mounting table 21 has an opening at the bottom, and a seedling feed belt 27 for transferring the seedlings on the table in the direction of the seedling removal port 25 is attached thereto. FIG.
As shown in FIG. 3, the seedling feeding belt 27 is stretched around a pair of rollers 29, 30, and by rotating the driving roller 29 in a predetermined direction, the seedling feeding belt 27 moves in the X direction. The upper stroke portion of the seedling feed belt 27 on which the seedlings are placed is slidably received by a belt support plate 32 made of one wide plate material. If the upper stroke portion of the belt is partially received by a plurality of narrow belt support plates, the weight of the seedlings causes the portion without the belt support plate to sag downward, thereby making seedling feeding uncertain. In this regard, if the upper stroke portion of the seedling feed belt 27 is entirely received by one wide belt support plate 32 as in the present embodiment, the above-described inconvenience does not occur. Also, since the belt support plate 32 is made of one member, the assembling work is also easy. Seedling feed belt 27
And the rollers 29, 30 are formed on the inner peripheral surface of the seedling-feeding belt and the annular grooves 29a,..., 30a,. The position is not shifted and the transmission is performed smoothly, but the ridge 27a and the annular groove 29 of the drive roller are provided.
a is tightly engaged with no gap, whereas the annular groove 30a of the driven roller is formed wider than the annular groove 29a of the drive roller, and the ridge 27a and the annular groove 30a are relatively loosely engaged. I agree. This is for the following reason. That is, since the tension of the seedling feed belt is high so that the seedling feed belt 27 and the driving roller 29 do not slip, the ridge 27a of the seedling feed belt and the annular groove 3 of the driven roller are provided.
When 0a is tightly engaged, the ridge 27a rises from the annular groove 30a by the reaction force from the drive roller 30 while the seedling feed belt 27 is moving, and the outer diameter of the belt 27 changes. Parsley on Rio prevent the convex 27a, in order to keep the seedlings feed speed constant. It is better to increase the number of the ridges 27a (for example, about 4).
Can be kept low, which is preferable in terms of durability and the like.

As a lateral feed mechanism for the seedling mounting table, a lead cam shaft 35 having a spiral groove formed on the outer periphery is laid under the seedling mounting table 21 and has a claw that engages with the groove. A lead metal 36 is fixed to the bottom of the seedling mounting table 21, and is transmitted from the transplantation section transmission case 10 via transmission means in a transmission case 37, and is connected to the lead cam shaft 35.
Is rotated in a predetermined direction, so that the seedling mounting table 21 reciprocates right and left intermittently with the lead metal 36.

As shown in FIG. 4, the seedling feed driving mechanism includes a seedling feed cam 41 attached to a cam shaft 40 that projects horizontally from the transplantation section transmission case 10, and left and right ends of a drive roller shaft 29b. When the seedling mounting table 21 reaches the end of the left and right strokes, the seedling feed cam 41 engages with either the left or right ratchet arm 42 to rotate the ratchet arm. . As a result, the drive roller shaft 29b is rotated by a predetermined amount in a predetermined direction, and the seedling feeding belt 27 moves in the X direction. After feeding the seedlings, the ratchet arm 42 returns to its original position. The return position of the ratchet arm 42 is regulated by a stopper 43, and by adjusting the position of the stopper 43, the seedling feed amount is adjusted.

The seedling feed amount adjusting device 45 is configured as shown in FIGS. That is, a seedling feed amount adjusting screw 47 having a stopper 43 fixed to one end thereof is screwed to a nut 46 integrally formed with the horizontal frame 22, and a locking rectangular cylindrical body 49 is provided on the outer periphery of the seedling feed amount adjusting screw. Mated. The rectangular cylindrical body 49 has grooves 50, 5 formed in the side surface.
0 is engaged with a pin 51 projecting from the seedling feed amount adjusting screw 47 so as to rotate integrally with the seedling feed amount adjusting screw 47, and a horizontal frame 22 is provided by a spring 52 interposed inside. Is biased to the side. The detent plate 53 with which the lateral frame side end of the rectangular cylindrical body 49 is engaged is connected to the lateral frame 22.
It is stuck to. When adjusting the seedling feed amount, the rectangular cylinder 49 is pulled in the direction of the arrow as shown by a two-dot chain line to release the engagement between the rectangular cylinder and the detent plate 53, and then the stopper 43 is moved. Turn to move the seedling feed amount adjusting screw 47 in an appropriate direction. If the cylinder 49 is returned to its original position, the seedling feed amount adjusting screw 47 will not rotate, and will be locked.

[0011] A plurality of pot seedlings 100 aligned to従横, ...
When the transplanting section is started by placing a seedling block composed of on the seedling mounting table 21, the seedling mounting table 21 moves laterally and the seedlings in the front row in the transfer direction located on the seedling receiving plate 26 are sequentially taken out of the seedling removal outlet. 25. When the seedling mounting table 21 reaches the end of the left and right stroke, the seedling feeding belt 26 moves by an appropriate amount, and transfers the group of seedlings on the seedling mounting table one row backward.

As shown in FIGS. 7 to 10, the implanting device 12 includes a first rotating case 61 rotatably mounted on the rear transmission frame 11, and a second rotating case 61 rotatably mounted on the first rotating case. A case 62 and an implantation rod 63 rotatably attached to the second rotating case are provided. The implantation rod 63 is provided with a pair of planting claws 65, 65 and a seedling pushing tool 66. The implantation claws 65, 65 are formed in a spatula shape, one fixed claw 65 (A) is fixed to the side surface of the implantation case of the implantation rod 63, and the other movable claw 65 (B) is formed from the implantation rod 63. It is attached to a rotatable opening / closing shaft 67 projecting downward.
When the opening / closing shaft 67 rotates in both the forward and reverse directions, the movable claw 65 (B) approaches and separates from the fixed claw 65 (A), and the pair of planting claws open and close. The seedling pushing tool 66 has thin plate-shaped seedling pushing parts 66a, 66a whose lower ends are inscribed in the pair of planting claws 65 (A, B), and these two seedling pushing parts are connected to each other at the upper part. Do it. The connecting portion 66b is attached to a vertically movable extruding shaft 68 provided on the implantation rod 63, and when the extruding shaft is vertically moved, the pushing tool 6 is moved.
6 protrudes and retracts. The seedling pushing parts 66a, 66a are made of a material having elasticity.
The force is acting in the direction of pressing. In addition, the planting claws 65, 6
In order to avoid interference between the seedling leaves 100b and the seedling pushing parts 66a, 66a when the seedling 100 holds the seedling 100, the seedling pushing part 6 is positioned so that the upper part is located behind the planting claws 65, 65.
Preferably, 6a and 66a are bent in a side view.

When each of the cases 61 and 62 rotates in a predetermined direction at a predetermined speed ratio, the implanted rod 63 moves up and down in a relatively constant posture while drawing a vertically elongated elliptical orbit. At the upper part of the track, the planting claws 65, 65 close to clamp the seedling 100 supplied to the seedling outlet 25, and at the lower part of the track, the planting claws 65, 65 open, and the seedling pushing tool 66 projects to remove the seedling 100. The seedlings are opened in the holes for transplanting seedlings formed in the field scene. When the seedlings are opened, the seedling pushing parts 66a, 66a
Moves downward along the inner surfaces of the planting claws 65, 65, and pushes the left and right ends of the upper surface of the pot portion 100a, which is the base of the seedling 100, so that the seedling is pushed downward by a uniform force in the left and right directions. For this reason, the seedling 100 is reliably separated and released from the planting claws 65 in the correct posture.

As shown in FIGS. 11 and 12,
Seedling pushing part (66a ', 66a') of seedling pushing tool (66 ')
May be formed with a rope. Also in this case, the upper part is located behind the planting claws 65, 65, and the lower part is the planting claws 65, 65.
The rope is appropriately bent so as to be inscribed in. As a material of the wire, a tough and elastic metal wire, such as a piano wire, is suitable, and the thickness is preferably about 3 mm in diameter. Forming the seedling-pressed portion with the wire as described above has advantages that processing is easy and that soil is less likely to adhere to the seedling-pressed portion itself.

[0015] Next, description and rear transmission frame 11 about the structure of the mounting portion of the first rotary case 61. A first rotating case mounting shaft 71 is non-rotatably provided on a mounting metal 70 fixed to the rear transmission frame 11, and a first rotating case 61 is mounted on a cylindrical body 72 rotatably fitted to the first rotating case mounting shaft.
Power is transmitted to a sprocket 75 integrally formed with the cylindrical body 72 via a chain 74 arranged in the rear transmission case 11, and the first rotating case 61 is attached to the first rotating case mounting shaft 71. It is designed to rotate around. In addition, reference numeral 76 in FIG. 8 denotes a detent pin for the first rotating case mounting shaft. The mounting metal 70 is fixed to the rear transmission case 11 with three bolts 77 (A, B, C), but a hole 78 through which the bolts 77 (B, C) are inserted.
(B, C) are elongated holes formed concentrically with the first transmission case mounting shaft 71. During work, the planting claws 65, 65 bite into the seedling removal port 25 for some reason, and the transplanting device 12
May stop, but if such a mechanical lock occurs, the parts of the implanting device 12 are in a stressed state, and it is extremely dangerous to release the lock as it is. In this case, first, the bolt 77 (A) is removed, and then the bolt 77 (B, C) is removed.
When the is loosened, the entire implanting device 12 returns together with the mounting metal 70 in the direction opposite to the rotating direction at the time of operation, and the stress of each part is removed. Since the bolt insertion holes 78 (B, C) are long holes, the mounting metal 70 can rotate. Unlocking work can be done safely when the stress is removed. After the lock release operation, the bolts (A, B, C) may be tightened after the positioning with the bolt 77 (A). Slot 7
8 (B, C) and bolts 77 inserted and tightened
(B, C) can release the fixation of the transplant device 12.
Stress during mechanical lock
Release of the fixed part that receives
Stress that can release the stress caused by
It constitutes a releasing means.

In the soil digging device 18, the soil digging tool 18a moves down intermittently in synchronization with the transplanting device 12, so that the seedling transplanting hole is formed in the field scene.

In the pressure- reducing device 19, pressure-reducing wheels 19b, 19b, which are relatively heavy, are diagonally mounted on a pressure-reducing wheel support frame 19a, which is rotatably mounted on the frame body 17, such that the distance between the pressure-reducing wheels 19b and 19b becomes smaller toward the bottom. The crushing wheels 19b and 19b roll on the field scene as the aircraft advances, and crush the soil while moving the soil on both the left and right sides of the transplanted seedlings inward.

The front wheels 7, 7 and the rear wheels 16, 16 can be moved up and down by a lifting device (not shown), and the front wheels and the rear wheels are appropriately adjusted based on the detection result of the grounding sensor 80 for detecting the height of the field scene. Ascend and descend to keep the seedling planting depth constant. A sensor stopper is attached to the lower surface of the frame 17 so that the ground sensor 80 does not rise more than a certain amount. If the upper limit of the ground contact sensor 80 is set in this way, for example, if the vegetable transplanter 1 is left erroneously straddling the ridge, the machine body descends excessively and the ground sensor 80 is deformed. Can be prevented.

[0019]

As described above, according to the present invention, that written in the present invention
Transplantation device, the other part is planting claw for any reason during the work
Material, for example, a mechanical lock
State, the mechanical lock
Release the stress by releasing the part receiving the tress
Because there is a means that can be released,
It is now possible to safely recover the lock.

[Brief description of the drawings]

FIG. 1 is an overall side view of a vegetable transplanter provided with one embodiment of the present invention.

FIG. 2 is a side sectional view of a main part of the seedling mounting table.

FIG. 3 is a plan sectional view of a main part of the seedling mounting table.

FIG. 4 is an explanatory diagram of a seedling feed drive mechanism.

FIG. 5 is a perspective view of a seedling feed amount adjusting device.

FIG. 6 is a plan sectional view of the seedling feed amount adjusting device.

FIG. 7 is a side view of the implantation device.

FIG. 8 is a plan view of the transplantation device with a partial cross section.

FIG. 9 is a front view of a planting nail and a seedling pushing tool.

FIG. 10 is a side view of the planting claw and the seedling pushing tool shown in FIG. 9;

FIG. 11 is a front view of a planting claw and a seedling pushing tool of another embodiment.

FIG. 12 is a side view of the planting nail and the seedling pushing tool shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vegetable transplanter 2 Engine 7 Front wheel 12 Transplantation device 16 Rear wheel 21 Seedling table 27 Seedling feed belt (seedling feeding means) 45 Seedling feed amount adjusting device 65 Planting claw 66, 66 'Seedling pushing tool 66a, 66a' Seedling pushing Department

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masahiro Takemoto 1st Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. (72) Inventor: Yoshiyuki Suzuki 1st department, Yachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. (56) References JP-A-63-230008 (JP, A) (58) Fields surveyed (58) Int.Cl. ⁷ , DB name) A01C 11/02

Claims (1)

(57) [Claims] 1. A rotating case which is driven and rotated.
The implanted claw of the implanted rod moves in a long path up and down
In the transplantation device configured as described above, the planting claw is attached to another member.
When it is engaged and the motion stops,
Therefore, release the fixed part that receives the stress
Providing a stress releasing means for releasing the stress
A transplant device characterized by the above-mentioned .