JPS637709A - Transplantation apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a transplanting device such as a rice transplanter or a vegetable transplanter.

(Prior Art) Conventional transplant devices are disclosed in Japanese Patent Publication No. 49-17806, Japanese Patent Application Laid-Open No. 60-66907, or Japanese Patent Application Laid-open No. 61'-
As disclosed in Japanese Patent No. 5712, a transplant tool is attached to the side of the distal end of a single rotating case, and the transplant nail of the transplant tool draws a long loop-shaped transplant locus in the vertical direction when viewed from the side. However, in this device, when dividing the seedlings, the transplanting tool does not come to a halt and the seedlings are divided and held from the seedling supply stand.

(Problems to be Solved by the Invention) Conventional transplanting devices have a configuration in which the seedlings are divided and held while the transplanting tool is being swung around in a rotating case, so the seedlings cannot be securely held and the seedlings cannot be divided. It is not possible to do this accurately, and the position of holding the seedlings is not fixed at the time of transplanting, so the transplanting position is not constant and there is a drawback that clusters occur during the growth after transplantation.

(Technical means for solving the problems) In order to solve the above problems, the present invention has the following configuration.

That is, when the seedlings are divided from the seedling supply table 23 side through a shaft that is rotated appropriately in the same direction as the rotation of the rotation case 7 on the outer surface of the tip side of the rotation case 7, the left and right transplants are performed. A seedling transplanting tool 10 is attached which holds the seedlings between its claws and when transplanting them to the soil surface, separates the transplanting claws on both the left and right sides to separate the seedlings.
When dividing the seedlings from the side, the transplanting device is configured to temporarily rotate the rotating case 7 in the opposite direction to the rotating direction and divide the seedlings with the transplanting tool 10 stopped or nearly stopped.

(Operations and Effects of the Invention) According to the present invention, as the rotation case 7 rotates, the transplant device 1
0 rotates, its transplant claws draw a long transplant trajectory in the vertical direction, grip the seedlings and take them out from the seedling supply stand 23 downwards, transfer them to the soil surface below, plunge into the soil surface, and release the seedlings. However, when the transplanting claws pinch the seedlings from the seedling supply table 23, the transplanting tool 10 temporarily rotates in the opposite direction to the rotating case 7 and comes to a halt, so that the seedlings can be firmly pinched. I can do it.

Seedlings can be reliably transplanted through accurate separation.

(Example) A vegetable transplanter which is an example of the present invention will be described in detail based on the drawings.

Reference numeral 11 denotes a transmission case, which has wheel transmission cases 12 facing downward on both left and right sides, and a transmission case 13 facing rearward and upward in the middle part from the left side.

Reference numeral 14 denotes an engine, which is directly connected to the front side of the transmission case 11.

15.15 indicates wheels.

Reference numeral 1 designates a transplanted transmission case, the base of which is fixed to the outer side of the distal end of the transmission case 13, and the distal end thereof extends rearward.

Reference numeral 17 denotes a handle support rod, the base of which is attached to the right side of the transmission case 11, and the tip thereof extends rearward and upward.

A reinforcing rod 18 connects the transplanted transmission case 1 and the handle support rod 17 to each other.

Reference numeral 19 denotes a lead cam shaft, which is inserted into the proximal end or the distal end of the transmission case 13 to receive transmission rotation, and whose distal end is connected to a support rod 20 integrally attached to the reinforcing rod 18 via a metal fitting 21. It is rotatably supported by an attached metal 22.

Reference numeral 23 denotes a seedling supply table, and a seedling transfer belt 24 is stretched in the front-rear direction around the hollow space of the framework formed by the left and right standing frames 23a and 23a and the front and rear bottom holes 23b and 23c.
It has a structure with

25.25 is a belt winding roll.

Note that the rear belt winding roll 25 is connected to the ratchet mechanism 2.
6, and drive levers 27 are provided on both the left and right sides.

A rotor 28 is fixedly attached to shafts 29, which are integrally provided with the lead cam shaft 19 and protrude outward from the left and right.

A lead metal 30 is inserted through the lead cam shaft 19 and equipped with a lead pawl that engages with a lead groove of the lead cam shaft 19. I'm wearing it.

As the lead cam shaft 19 rotates, the seedling supply table 23 is reciprocated horizontally from side to side via the lead metal 30, and when it reaches the lateral end, the drive lever 27 engages with the rotor 28 and is rotated. Belt winding roll 25
It is designed to rotate.

31 is a seedling receiving frame, which is located at the rear end side of the seedling supply stand 23;
A metal fitting 32 is attached to the transplanted transmission case 1 and the handle support rod 17.
A seedling outlet 16 is provided at the left and right center portions.

33 and 34 indicate support rails of the seedling supply table 23.

35 is a loop handle whose base is fixed to the rear end of the transplanted transmission case 16 and the handle support rod 17.

Reference numeral 36 denotes a drive shaft, which is rotatably mounted on a bearing inside the distal end side of the transplanted transmission case 1, and this drive shaft 36 has a sprocket 37, a gear 38, and a drive cam that receive power from the engine 14 through a chino. 39 is provided so as to be rotated integrally with the shaft.

Reference numeral 2 denotes an outer shaft, which is rotatably supported by the transplanted transmission case 1, and a gear 40 having the same number of teeth that meshes with the gear 38 is wedged on the outer shaft 2.

Reference numeral 4 denotes an inner cylindrical shaft inserted into the mantle shaft 2, which is rotatably supported by the inner wall of one side of the transplanted transmission case 1 in this rotation;
The other end is provided outside the transplanted transmission case 1 so as to protrude beyond the mantle shaft 2.

A driven cam 41 is wedged on the inner cylindrical shaft 4. The driven cam 41 contacts the drive cam 39, rotates temporarily, and returns to its original position. Note that 42 is a spring for restoring the cam 41. Symbol B is a trajectory variation mechanism, which is a cam mechanism for rotation 1, the driving cam 39, the driven cam 41, and the spring 4.
Consists of 2nd class.

- This is a mechanism for rotating the inner cylinder shaft 4 next. Note that this locus variation mechanism B will be explained in detail later.

Reference numeral 65 denotes a fixed shaft, which is inserted into the inner cylindrical shaft 4, whose base is formed into a square shaft, and which is inserted into a square hole bored in a boss part provided in the transplanted transmission case 1 so as to be integrated with the case. 066 is a sealing cap. 3 is a first rotating case, and a bracket 43 is attached to the mantle shaft 2.
It is fixed with a bolt 44 via.

A sun gear 45 is fixed to the fixed shaft 4 and is located inside the first rotating case 3.

Reference numeral 67 denotes a swinging gear, which is integrally provided at the tip of the inner cylindrical shaft 4.

Counter gears 46 and 47 are rotatably attached to the counter shaft 68 in the first rotating case 3, respectively.
The gear 46 is configured such that large and small double gears 46a and 46b are integrally formed and rotated at double speed.

Reference numeral 5 denotes a mantle shaft, which is rotatably supported by the first rotating case 3, and a gear 49 that meshes with the gear 46 is wedged on the mantle shaft 5. A mantle shaft 66 is inserted into the mantle shaft 5. A gear 48 that meshes with the counter gear 47 is fixed to this shaft, and in this rotation, it is rotatably supported by the inner wall of one side of the first rotating case 3, and the other end is supported by the inner wall of the first rotating case 3.
It is provided on the outside of the rotating case 3 so as to protrude beyond the mantle shaft 5.

7 is a second rotating case, and a bracket 5o is attached to the mantle shaft 5.
It is fixed with a bolt 51 via the.

52 is a gear wedged on the shaft 6, and is located inside the second rotating case 7.

A counter gear 53 meshes with the gear 52. 54 indicates a counter axis.

Reference numeral 55 denotes a transplant attachment shaft, which is rotatably supported by the second rotating case 7 and has a distal end protruding outside the case 7.

A gear 56 is wedged on the graft attachment shaft 55 and meshes with the gear 53.

Reference numeral 10 denotes a transplant tool, in which a transplant nail 8 consisting of a fixed transplant claw 8a and a movable transplant claw 8b is attached to a hollow box-shaped transplant tool body, and the movable transplant claw 8b is attached to the inside of the transplant tool main body. An operating mechanism 9 is provided so that the operation of holding the seedling A or, conversely, releasing the held seedling A is performed.

The main body 10a of the transplant device 10 is fixed to the transplant device attachment shaft 55 via a bracket 57 and a bolt 58.

The movable transplant claw 8b is attached to a vertical shaft 59 that is rotatably attached to the transplant main body 10a, and is attached to the transplant fixation claw 8a that is fixed to the transplant main body 10a with a bolt 60. The left and right spacing can be expanded and contracted.

Reference numeral 61 denotes an opening/closing cam, which is provided integrally with a mantle shaft 62 that covers the transplant device attachment shaft 55, and this mantle shaft 62 is connected to a bracket 69 on the second rotating case 7 and
It is attached via a claw 72 to an engaging element 71 provided with a dog claw 70 integral with the engaging member 71 so as to be freely rotatable at a certain angle. 7
Reference numeral 3 designates a one-way clutch, which is provided between the graft attachment shaft 55 and the outer mantle 61, and is connected to the claws 70 and 72.
With this one-way clutch 73, the play between the mantle shaft 6 and
The mantle shaft 62 is configured not to be returned to its original position until the pawls 70 and 72 are engaged with each other by rotation of the second rotating case 7 side.

A cam floor 63 is fixed to the shaft 59.

The spring 64 is brought into pressure contact with the opening/closing cam 61, and the cam 61
The shaft 59 is provided so as to be rotated by the rotation of.

Then, a second
The number of rotations of the rotating case 7 is exactly doubled, so that when both rotating cases 3 and 7 are fully extended in a straight line, both of the rotating cases 3 and 7 face downward on the road. It is configured so that when it does not extend in a straight line but is bent, it faces in the front-back direction.

Further, the trajectory P drawn by the tip of the transplanted nail 8 of the transplantation device 10 is configured in a closed loop shape that is narrow in the front-rear direction and long in the vertical direction.

Note that the longitudinal distance of the trajectory P varies depending on the length of the second rotating case 7 relative to the length of the first rotating case 3 (more precisely, the distance between the center of the input shaft and the center of the output shaft). If the lengths are the same, a straight line will be drawn up and down.

Furthermore, the movable transplant claw 8b operates by rotating against the spring 64 toward the fixed transplant claw 8a when the transplant claw 8 intervenes from above into the seedling take-out port 16 of the seedling receiving frame 31 to take out the seedling. Thereafter, the cam 61 is shaped so that it reaches the lower end in that state and opens when it plunges into the soil surface.

To explain the trajectory variation mechanism, the drive cam 3
9 and the driven cam 41, the transplanted claw 8 is connected to the seedling removal port 16.
The shaft 55 to which the transplanting tool 10 is attached is configured to rotate at the same rotational speed in the direction of rotation opposite to the rotational direction of the second rotation case 7 at the time when the transplanting tool 10 is taken out. I am trying to temporarily stop it.

Also, the above-mentioned dimension from the rotation axis of the first rotation case 3 to the axis of the rotation axis of the second rotation case 7.

When the dimension from the rotational axis of the second rotation case 7 to the axis of the attachment shaft of the seedling transplanter 1° is made approximately the same, if the trajectory variation mechanism B is not provided, the transplantation drawn by the transplantation claw 8 will be The trajectory P becomes a straight line in the vertical direction, and the transplanted claw 8 reaches the seedling supply table 23.
Since it is not possible to separate the seedlings from the seedlings, the structure of the drive cam 41a shown in FIG. 5 is used. That is, the small diameter perfect circular cam surface (u), the large diameter perfect circular cam surface (d), and the small diameter perfect circular cam surface (
The first inclined cam surface (k) rises from u) to the large diameter perfect circular cam surface (d), and the second inclined cam surface (j ), and on the small-diameter perfectly circular cam surface (u), the transplanting tool 10 is moved from the soil surface to the seedling supply table 2.
3 side, and on the first inclined cam surface (k), the transplant claws 8 that divide and hold the seedlings hardly move in the vertical direction, but move only forward to pinch the seedlings, and the process is such that the large-diameter perfect circle The cam surface (d) has a descending straight line process, and the second inclined cam surface (
In j), the transplanting process is set in which the transplant claw 8 is rapidly moved backward so as to transplant the seedling to the soil surface. still.

When dividing the seedlings, the transplanting tool 10 is rotated to be swung upward by the trajectory variation mechanism B (substantially, it is hardly operated in the vertical direction due to the rotational action of the second rotating case 7). Transplanted nail 8b opened and closed by cams 61 and 63
The operation becomes rapid, and the seedlings can be clamped instantaneously, making it possible to clamp the seedlings in an accurate posture.

Next, to explain the function of the upper side, the wheels 15.1 of the transplanter
5 is set so as to straddle the transplanting ridge in the field, and then the seedlings are grown in a mat-like seedling placed on the seedling supply table 23 or in a paper seedling raising device in which pot containers are arranged vertically and horizontally at predetermined intervals. After placing and storing the pot-shaped seedling A, the engine 14 transmits and rotates each rotating part, and the body is propelled by the rotation of the axle 15.15.

The seedling supply stand 23 is reciprocated in the left-right direction via the lead metal 30 by rotation of the lead cam shaft 19. Therefore, the seedling A located on the rear end side is moved left and right while being received by the seedling receiving frame 31, and the seedling is fed out to the seedling outlet 16.

On the other hand, when the drive shaft 36 is transmitted and rotated from the engine side via the chino and sprocket 37, the mantle shaft 2 is rotated by the gear 3.
8 and a gear 40, and this outer shaft 2
The first rotating case 3 fixed to is rotated. Further, the inner cylinder shaft 4 is rotated only once while the first rotation case 3 is rotated once by the drive cam 39 and the driven cam 41.

Then, the counter gears 46a and 46b undergo planetary rotation using the gear 45 fixed to the fixed shaft 65 as a sun gear, and furthermore, the gear 49 meshing with the counter gear 46b is transmitted and rotated.

The counter gear 47 receives planetary rotation using the oscillating gear 67 integrated with the -direction cylinder shaft 4 as a sun gear, and the gear 48 meshing with this is further rotated.

Therefore, the second rotating case 7 is connected to the gear 49 and the outer shaft 5.
And it is transmitted and rotated via the bracket 5o.

Further, the gear 52 in the second rotating case 7 is rotated at double speed from the gear 48 via the shaft 6 in the opposite direction to the rotating direction of the rotating case 7.

The main body 10a of the transplant device 10 has a gear 5 wedged on the shaft 6.
2 as a sun gear, a counter gear 53 rotates around the sun gear, and a gear 5 that is transmitted by the gear 53.
The tip of the transplant claw 8 moves in a closed loop-shaped transplant locus P.

However, at the time of dividing the seedlings from the seedling supply table 23, the transplanting tool attachment shaft 55 is primarily rotated upward by the cam mechanism B composed of the drive cam 39, the driven cam 41, etc. In response to the rotation of the rotating case 7, the stationary state is substantially maintained. Therefore, the transplant claw 8 intervenes in the seedling take-out port 16 of the seedling receiving frame 31 from above, and at this point, the bracket 6 is attached to the second rotating case 7.
The transplant movable claw 8b is actuated by the cam 61 and cam floor 63, which are integrated with the mantle shaft 62 provided through the 9 engagers 71 and claws 70 and 72, and the seedling is placed between the transplant fixed claw 8a and the transplant movable claw 8b. Sandwiched. Therefore, the transplanted claws 8 accurately grasp the seedlings with little movement in the vertical direction, and then move downward to divide them.

Since the swinging motion of the implant 10 is performed sequentially, the dog claws 70 and 71 are rotated relative to the rotation of the cam 61.
Because it precedes the cam 61 in the portion between the meshing play with the cam 61, after this oscillating movement, the rotation of the cam 61 is not allowed until the pawl 70 catches up and engages with the pawl 71, and the cam floor -
The action of the one-way clutch 73 reliably prevents the side effect of the seedling 63 trying to release the gripped seedling A due to the cam action in the opposite direction.

In addition, in the transplanting device, there are cases where mud adheres between the left and right claws 8a and 8b of the transplanting claw 8, making it impossible to accurately hold the seedlings. Generally speaking, it is preferable to provide an air blowing lower 5.75... on the inner surface of the transplanted nail 8 and configure it so that air is blown out from the air pump 76 through the air pipe 77. You can also make the wind blow only occasionally.

[Brief explanation of the drawing]

The figures show a vegetable transplanter which is an embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a plan view, Figs.
5 and 5 are sectional views, FIG. 6 is a side view of the main part of another example, FIG. 7 is a sectional view of the main part, FIG. 8 is a side view of the main part of another example, and FIG. 9 is a side view of the main part of another example. FIG. 10 is a rear view of the main part, and FIG. 10 is a side view of the main part. Symbols in the figure: 1 is a transplanted transmission case, 3 is a first rotating case,
7 is the second rotating case, 8 is the transplanted nail, 1° is the transplant tool, 23
1 shows a seedling feeding platform, A shows a seedling, B shows a trajectory variation mechanism, and P shows a transplanting trajectory.

Claims (3)

[Claims] (1) When dividing seedlings from the seedling supply stand 23 side via a shaft that is rotated appropriately in the same direction as the rotation of the rotation case 7 on the outer surface of the tip side of the rotation case 7, both left and right sides are attached. A seedling transplanting device 10 is attached, which holds the seedlings between the transplanting claws of the seedlings and separates the seedlings by separating the left and right transplanting claws when transplanting to the soil surface.
When dividing the seedlings from the third side, the transplanting device is configured to temporarily rotate the rotating case 7 in a direction opposite to the rotating direction and divide the seedlings while the transplanting tool 10 is stopped or nearly stopped. . (2) A second rotating case 7 that rotates in the opposite direction to the first rotating case 3 is provided on the outer surface of the rotating tip side of the first rotating case 3, which is rotated by transmission as appropriate. , when the first rotating case 3 is oriented in the vertical direction, it is also oriented in the vertical direction and located on the same side as the first rotating case 3,
When the first rotating case 3 is oriented in the front-back direction, it is also oriented in the front-back direction and located on the opposite side, and the second rotating case 7 is the rotating case 7 according to claim 1. An implantation device according to claim 1. (3) The dimension from the rotation axis of the first rotation case 3 to the axis of the rotation axis of the second rotation case 7, and the dimension from the rotation axis of the second rotation case 7 to the attachment axis of the seedling transplanter 10. The implantation device according to claim 2, wherein the dimensions up to the axis are substantially the same.