JP3109140B2 - Transplant machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter equipped with a transplanter for removing seedlings one by one from a seedling table and planting the seedlings in a field.

[0002]

2. Description of the Related Art Conventionally, there is no transplanting machine provided with an excavating device equipped with a transplanting device for reciprocating between a seedling mounting table and a field and planting seedlings in the field by a seedling extruded body. But
Since the transplanting device and the excavation device are separate members, the synchronous operation of both devices is difficult, the structure is complicated, and the device cannot be put to practical use.

[0003]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, the present invention separates seedlings of one strain from seedlings placed on a seedling mounting table by using a seedling separator and sets the seedlings in a field. In a transplanting machine equipped with a transplanting device for planting seedlings by an extruded body, a drilling tool for digging a hole for planting seedlings in the transplanting device is provided in a field, and the drilling tool is separated from the seedling isolate at the time of drilling. The present invention is also a transplanter characterized in that it is provided in such a manner that it enters the field in advance and retreats during the planting operation of planting the seedling in the field by the seedling extruded body.

[0004]

According to the present invention, by providing a hole digging tool for digging a hole for planting seedlings in a transplanting device in a field, a transplanting device having a simple structure and high accuracy can be obtained. Can be eliminated. Further, the excavating tool is provided so as to enter the field before the seedling isolation during the excavating operation, and to be retracted during the planting operation to plant the seedling in the field by the extruded seedling. The hole drilling tool can satisfactorily dig a transplanting hole in a field and the transplanting apparatus can properly plant a seedling in the hole without having any adverse effect on the transplanting performance.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A riding type rice transplanter according to an embodiment of the present invention will be described in detail with reference to the drawings. Reference numeral 1 denotes a passenger towing vehicle, which is provided with a front transmission case 3 and a rear transmission case 4 below a flat steering step floor 2, and a front axle case on both left and right sides of a rear side of the front transmission case 3. A pair of left and right front wheels 5,
The transmission case 6 is mounted on the left and right sides of the rear transmission case 4 so that the rear wheels 7, 7
And a frame 8 for mounting an operation lever or the like is erected on the front portion of the step floor 2, a handle 9 is provided via a steering post, and a cover 11 for covering the engine 10 is provided behind the handle 9. The control seat 12 is mounted thereon.

Reference numerals 13 and 13 denote support columns, which are erected at predetermined intervals on the left and right on a connecting frame 14 connecting the left and right transmission cases 6 and 6. Reference numeral 15 denotes an elevating link. The bases of a pair of left and right lower links 15a, 15a and a single upper link 15b are pivotally connected to the columns 13, 13 via pins, and the distal ends are connected by a vertical link 16. The lifting link 15 is configured to be vertically turned by a hydraulic cylinder device 17.

Numeral 18 denotes a transplanting machine, which is composed of a transmission case 19, a seedling mounting table 20 which reciprocates right and left, a transplanting device 21, and leveling floats 22, 23, 23 at the center and sides. 19 is the vertical link 1
6 is freely rotatably mounted on a support 24 integral with 6 via a support shaft 25. The transmission case 19 is provided with a sub-transmission case 19b, 19
b, 19b and a vertical transmission case 19c, 19 extending rearward.
c, 19c.

Numeral 26 denotes a seedling receiving frame, which extends laterally along the lower end of the seedling mounting table 20, and into which a seedling to be placed in the seedling mounting table 20 can be split. Are provided. The transplanting device 21 is constituted by the following members. That is, a drive shaft 28 protruding outward and laterally is installed on the vertical transmission case 19c so as to be appropriately driven and rotated.
8a. Then, a rotary case 29 is attached to the drive shaft 28. The rotation case 29 is mounted so that the rotation case 29 is fitted to the tip-side angular shaft portion 28a of the drive shaft 28 so that the rotation case 29 is integrally rotated with the drive shaft 28. Reference numeral 30 denotes a fixed metal whose base is fixed to the transmission case 19, and whose distal end extends into the rotating case 29 so as to surround the drive shaft 28. A hole eccentric with respect to the drive shaft 28 is formed in the distal end side of the fixed metal 30. Reference numeral 31 denotes a sun gear. A boss portion of the gear is fitted into a hole of the fixed metal 30 and a key 31a is interposed between the boss and the metal 31.
1 is provided so as to be accommodated in the rotating case 29 without rotating. The sun gear 31 is connected to the drive shaft 2.
The center is eccentric with respect to the axis A of 8.

Reference numerals 32, 32 denote counter planetary gears which mesh with the sun gear 31 and are rotated by the rotation of the rotating case 29. Reference numerals 33, 33 denote planetary gears integrally provided with the implant driving shaft 34, and the counter planetary gears 32, 3 in the distal end side of the rotating case 29.
2 is engaged. The implant driving shaft 34 is extended to the side opposite to the transmission case 19 side, and the tip side is formed as a square shaft 34a.

Numeral 35 denotes a transplanting tool, a transplanting tool main body 35a having a hollow case inside, a seedling transplanting claw 36 as a seedling separating body consisting of two needles attached to the main body 35a, and a seedling extruding body. 37, an interlocking member 38 housed in the case, a cam body 39, a spring 40, and the like. The cam body 39 has a hole through which the implanter drive shaft 34 penetrates, extends its boss 39a, and is attached to the rotating case 29 in a form to fit into the square hole c. The cam body 39 is configured to rotate integrally with the rotating case 29. The boss 39 of the cam body 39
The boss portion 39b on the opposite side to the a
c, a mounting bracket 42 fixed to the implant driving shaft 34
The cam body 39 has a double-sided support structure, and its operation is stabilized.

The seedling extruded body 37 has an upper and lower middle portion slidably mounted vertically inside the implanter main body 35a, and a forked piece 37a having a fork-like shape fixed integrally to a lower protruding end portion. . The interlocking member 38 interlocks the cam body 39 and the upper end of the seedling extruded body 37, and 41 is a fulcrum pin. When the tip of the seedling transfer nail 36 is located at P1 on the locus P (when planting a seedling in the soil), the cam floor 38a of the interlocking member 38 corresponds to the cut portion d provided in the cam body 39, The interlocking member 38 is rotated in the direction of E by the spring 40 to rapidly move the seedling extruded body 37 in the direction of F.

Reference numeral 42 denotes a fitting for mounting the main body 35a of the implant 35 and the implant driving shaft 34. The mounting 42 is a square hole 42a fitted to the square shaft 34a of the driving shaft 34. In addition, a bolt insertion hole 42b for fastening to the outer surface of the implanting device main body 35a is formed. The bolt insertion hole 42b is provided in an arc shape with the drive shaft 34 as a center, and the metal fitting 42 is bolted to the implantation tool main body 35a.
When the main body 35a is mounted on the drive shaft 34, the main body 35a can be set so as to be rotatable about the drive shaft 34 as appropriate.

Further, the mounting bracket 42 and the drive shaft 34 are pressed against the square shaft 34a by a cotter pin 44 having a part of the peripheral surface tapered in the axial direction. The whole implant 35 is configured to be movable and adjustable in the axial direction of the shaft 34. The mounting bracket 42 has an insertion hole 35 for inserting the transplant tool drive shaft 34 of the transplant tool 35.
An engagement portion 42c that fits into the inside b is provided. 46 is a ball bearing, and 47 is an oil seal.

Reference numeral 48 denotes a hole digging tool for digging a hole for planting seedlings in a field, and a hole digging body 49 provided with a hole digging plate 49a for digging a hole at the tip and moving the hole digging body 49 in the torch direction. An operating arm 50 to be operated and a cam 51 to operate the operating arm 50 are provided. Hereinafter, the structure will be described in detail. The digging body 49 is inserted into a supporting cylinder 52 formed on the side wall of the implanting device main body 35a and supported movably only in the torch direction.
It is urged by a spring 53 to retreat in the h direction. The operating arm 50 is rotatably supported on a side wall of the implanting device main body 35a by a support shaft 54 at an intermediate portion thereof, a distal end 50a is engaged with an engaging hole 49b of the digging body 49, and a base 50b is connected to the cam 5
1 is in contact with the cam surface. The cam 51 is mounted on the boss 39a of the cam body 39, and is configured to rotate integrally with the cam body 39 by the key 51a. However, the cam 51
The arm 50 is rotated by the rotation of
In the torch direction, the movement in the torch direction depends on the locus P drawn by the tip of the seedling transplanting nail 36.
(When the seedling extruding body 37 begins to push the seedling into the soil), it retreats in the h direction, and when it is positioned at P2 in the locus P drawn by the tip of the seedling transplanting nail 36 (the seedling transplanting nail 36 Stand 2
(Right after the seedling is separated from 0).

Next, the operation of the above example will be described. When the seedlings are placed on the seedling mounting table 20 and each part is driven by the engine 10,
The towing vehicle 1 is propelled by the rotation of the front wheel 5 and the rear wheel 7, and the transplanter 18 is partially towed by the leveling floats 22, 23, and 23 to which the load is received, and the power is transmitted to the front transmission case 3. From the transmission case 19, and the power is transmitted to the drive shaft 28. Then, each rotating case 29 rotates, and the counter planetary gears 32, 32 are planetary rotated around the sun gear 31 with this rotation,
The planetary gears 33, 33 meshing with this are rotated. Therefore, the implant device main body 35a is rotated via the implant device drive shaft 34 and the attachment 42 provided integrally with the planetary gears 33, 33. A cam body 39 integrally attached to the rotating case 29 via a boss 39a.
Is rotated while being deviated from the rotation of the implanting device main body 35a, so that the seedling extruded body 37 is vertically moved via the interlocking member 38.

That is, the tip side of the seedling transplant nail 36 is the transplant locus P
, And the seedlings successively fed to the seedling dividing ports 27, 27... Of the seedling receiving plate 26 are divided by the seedling mounting table 20 which reciprocates right and left, and are successively transferred to the field scene, where the seedlings are transplanted. The seedling extruded body 37 just pushes the seedling downward by the action of the spring 40 and transplants the seedling at the position (P1 position) when the 36 projects into the lowermost soil surface.

On the other hand, the excavation body 49 of the excavation tool 48 digs a hole in the field before the seedling separated by the seedling transplanting nail 36, and when the tip of the seedling transplanting nail 36 is located at P1. Seedling extruded body 3
Since 7 starts to push the seedlings into the soil and retreats in the direction of the arrow at the same time, the excavation body 49 does not unnecessarily dig a large hole, and scratches the seedlings planted when moving upward. Good seedlings can be planted without falling down.

Then, the 2 attached to the rotating case 29
If there is a difference in the amount of seedlings divided by the seedling transplanting claws 36, 36 of the base transplanting tool 35 or the seedling transplanting posture is poor, the transplanting device main body 35a is rotationally adjusted with respect to the transplanting device drive shaft 34, The size and angle at which the seedling transfer nail 36 intervenes in the seedling division opening 27 may be adjusted. In this adjustment, bolt 4
It is sufficient to adjust the mounting angle between the mounting member 42 and the implanting device main body 35a by loosening the fitting 3, but since this adjustment can be performed outside the implanting device main body 35a, the operation can be extremely easily performed.

If the seedling transplanting nail 36 is shifted laterally with respect to the seedling dividing port 27 of the seedling receiving plate 26 at the time of dividing the seedling, the cotter pin 44 is loosened to remove the transplanter main body 35a.
May be adjusted in the axial direction by driving the cotter pin 44 again. Then, the sun gear 31 is fixed to the transmission case 19 by engaging the fixed metal 30 and the sun gear 31 that can be rotated around the drive shaft 28 with respect to the transmission case 19 at the respective engagement portions 30c and 31a. After the implantation device 21 is assembled, the drive shaft 28
When assembling this to a vehicle, the assembling is easy. Furthermore,
After assembling, the fixing gear 30 can be rotated around the drive shaft 28 by loosening the bolt 30b and holding the grip 30d, whereby the sun gear 31 can be rotationally adjusted via the engaging portions 30c and 31a. Therefore, the posture of the implanters 35 can be easily adjusted.

Since the ball bearings 45 are provided between the outer surfaces of the engaging portions 30c and 31a and the transmission case 19, the posture of the sun gear 31 is properly maintained, and the rotating case 29 is also provided. The two points of the drive shaft 2 at the ball bearing 45 and the square shaft 28a at the tip of the drive shaft 28
8, the rotating case 29 rotates stably, and division and planting of the seedlings are performed accurately. In addition, since the rotating case 29 rotates stably without wobbling in the left-right direction, the seal 47 is not likely to be damaged, and the sealing property of the rotating case 29 is good.

The transplant tool 35 is stably supported by the transplant tool drive shaft 34 via the lid 42, so that a proper seedling planting operation is performed and the engaging portion 42c of the lid 42 is formed.
Is fitted in the insertion hole 35b of the implant 35, so that the sealing of the implant 35 is very good. In the above-described embodiment, the movement of the hole moat body 49 in the torch direction is performed when the tip of the seedling transplanting nail 36 is positioned at P1 in the locus P (when the seedling extruded body 37 starts pushing the seedling into the soil). ), Retreats in the h direction, and moves along the trajectory P drawn by the tip of the seedling transfer nail 36.
2 (just after the seedling-transplanting claw 36 separates the seedling from the seedling mounting table 20), it is configured to protrude in the direction. The body 37 may be configured to retreat in the h direction before the seedling begins to be extruded into the soil, and when the body 37 is located at P3 in the locus P drawn by the tip of the seedling transplanting nail 36 (the seedling transplanting nail 36 Seedling stand 2
(Before the seedlings are separated from 0), the digging body 49 may be configured to protrude in the direction G to support the separated seedlings from below.

In the above embodiment, the transplanting machine 18 is provided at the rear of the towing vehicle 1 and the transplanting device 21 is arranged at the rear side of the seedling table 20. The present invention may be applied to any transplanting machine such as a machine in which a transplanting device is arranged in front of a seedling mounting table.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional side view of an implantable device.

FIG. 2 is a cross-sectional plan view of the implantation device.

FIG. 3 is an overall side view.

FIG. 4 is an overall plan view

FIG. 5 is a sectional view taken along line AA of FIG. 2;

FIG. 6 is a side view of the fixed metal 30.

FIG. 7 is a sectional view taken along line BB of FIG. 6;

FIG. 8 is a side view of the sun gear 31.

9 is a sectional view taken along the line CC in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 20 Seedling stand 21 Transplantation device 28 Drive shaft 29 Rotating case 31 Sun gear 32 Counter planetary gear 33 Planetary gear 34 Transplantation tool drive shaft 35 Transplantation tool 36 Seedling isolate (seedling transplanting claw) 37 Seedling extruded body 48 Hole excavator 49 hole Hori body 50 Operating arm 51 Cam

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho-59-87210 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 11/02 A01C 5/04

Claims (1)

(57) [Claims] 1. A transplanting machine equipped with a transplanting device for separating a seedling of one strain from a seedling placed on a seedling mounting table by a seedling separator and planting the seedling by a seedling extruded body in a field. A digging tool for digging a hole for planting seedlings in the field is provided, and the digging tool is rushed into the field before the seedling isolate during the digging operation, and the seedling is extruded to plant the seedlings in the field. A transplanter characterized in that it is set to retract when activated.