JPH07112370B2 - Vegetable transplanter - Google Patents

Description

TECHNICAL FIELD The present invention relates to a vegetable transplanter for planting vegetable seedlings in a field.

[Prior Art] A transplanted nail consisting of a pair of sandwiching pieces moves up and down in a closed loop locus to sandwich rice and vegetable seedlings supplied from the seedling supply table at the upper part of the closed loop locus and at the lower end. There is a rice transplanter or a vegetable transplanter configured to open the seedlings and plant them in a field, and at the time of planting, the seedling extrusion body moves downward to push down the seedlings.

In the above conventional ones, the rice transplanter used in paddy fields with soft soil is configured so that the seedling extrudate pushes down the seedlings slightly earlier than the transplanted nail descends to the bottom, and the soil is harder than paddy fields. In the vegetable transplanter used in, the seedling extrusion body pushed down the seedlings almost at the same time when the transplanted nail was lowered to the bottom.

[Problems to be Solved by the Invention] However, when planting vegetable seedlings in a field with a vegetable transplanter, there is a problem that the seedlings are not pushed into the soil due to the resistance of the soil and the seedlings are damaged.

[Means for Solving Problems] In order to solve the above problems, the present invention has the following configuration.

That is, the vegetable transplanter according to the present invention performs a vertical movement by drawing a closed loop locus, sandwiches the vegetable seedlings supplied from the seedling supply table at the upper part of the closed loop locus, and opens the seedling at the lower end. In a vegetable transplanter comprising a transplanting nail to be planted in a field and a seedling extruding body which pushes down the seedlings at the time of planting, the seedling extruding is carried out while the transplanting nail passes through the lower end of the locus and moves in the ascending stroke. The feature is that the body is configured to move downward.

[Operation] The seedling extruding body is configured to move downward and push out the seedlings while the transplanting claws descend to the lowermost part to release the sandwiching of the vegetable seedlings and then move up the stroke. The extruded body does not force the seedlings into hard fields, so that the seedlings are planted without being damaged or damaged. Therefore, it is good to grow after planting.

[Examples] Examples described in the drawings will be described below.

This vegetable transplanter 1 has an engine 2 provided at the front end of the machine body.
The mission case 3 is disposed in the rear part of the wheel case, and the wheel transmission case is slanted downward and rearward from both left and right sides of the mission case.
5, 5 are provided, and the drive wheels 6, 5 are provided at the lower ends of the wheel transmission cases 5, 5.
6 is pivotally supported. A work unit transmission case 8 extending rearward is provided on one of the left and right sides (left side in the illustrated example) of the mission case 3, and a transplantation device transmission extending rearward slightly upward is provided at a rear end portion of the work unit transmission case 8. The case 9 and the seedling supply table transmission case 10 which is provided in an upward tilted posture are connected. Further, an inter-stock case 11 is provided inside these transmission cases.

A handle support rod 12 is provided on one side (right side in the illustrated example) of the machine body so as to face the working unit transmission case 8 and the transplantation device transmission case 9. Then, tail wheel support rods 14 and 14 are attached to the rear end portion of the seedling feeding table transmission case 10 and the horizontal rod 13 protruding from the handle support rod 12 so that the angle can be adjusted, and the left and right tails are attached to the lower end portion of the support rod. Wheels 15 and 15 are pivoted respectively. Reference numeral 16 in the drawing is a handle for adjusting the height of the tail wheel. A steering loop handle 18 is attached to the rear end of the transplantation device transmission case 9 and the rear end of the handle support rod 12.

On the upper part of the machine body, a seedling supply table 20 is provided with a slight inclination so that the front part is on the upper side. The seedling supply table 20 is supported on rails 22 and 23 laterally provided in front and rear upper portions of the machine body so as to be slidable in the left and right directions. The seedling supply table 20 is provided with right and left standing frames 25.
a, 25a and bottom plates 25b, 25c provided at the front and rear ends form a frame 25, and the rotating rolls 26, 26 are provided in the rear gap 25d of the frame.
And a seedling transfer belt 27 stretched over. Further, at the rear part of the seedling supply table 20, a seedling receiving frame 31 having a seedling take-out port 30 is provided in the left and right central portions.

The seedling supply table 20 is designed to perform a predetermined motion by the drive mechanism 33 configured as follows. That is,
The drive mechanism 33 has clockwise and counterclockwise spiral lead grooves 38, 38 ′ formed on the outer peripheral portion between the tip of the seedling feeding table transmission case 10 and the bearing member 36 attached to the horizontal bar 13. The lead cam shaft 37 is pivotally supported, and a lead member 39 having a lead claw that is fixed to the rear end bottom plate 25c of the seedling feeding table and engages with the lead groove is engaged with the center of the lead cam shaft 37. Further, rotors 40, 40 are fixed to left and right extension shafts 37a, 37a of the lead cam shaft 37, and drive levers 41, 41 engaging with the rotor are provided at both ends of the rear roll shaft 26a. It is fixed. Rotational driving force is transmitted to the roll shaft 26a via a ratchet mechanism (not shown).

A transplantation device 50 is provided at an intermediate portion of the rear end portion of the transplantation device transmission case 9 and the handle support rod 12. The transplanting device 50 includes a first rotating case 51, a second rotating case 52 and a transplanting case 53, each of which has a plurality of shafts, gears and the like.
Nail 55 (A), 55 (B) and seedling extrudate 5 in transplant case 53
6,56 are provided.

As shown in FIG. 3, the first rotating case 51 is integrally provided on the hollow shaft 60 that is axially supported by the transplant transmission case 9, is rotatable with respect to the transplant transmission case 9, and is also the second rotation case. The reference numeral 52 is integrally provided on a hollow shaft 61 that is pivotally supported by the first rotating case 51, and is rotatable with respect to the first rotating case. Drive shaft supported on the rear end of the transplantation device transmission case 9
The engine 63 receives power from the engine via a chain 65 stretched over a sprocket 64. The gear portion 60a of the hollow shaft 60 meshes with the gear 63a of the drive shaft 63, and the gear 67a of the insertion shaft 67 rotatably inserted into the hollow shaft 60 meshes with the gear 63b. In addition, the gear portion 60b of the hollow shaft 60 has the gear portion 6 of the hollow shaft 61.
1a is engaged. Insertion shaft 68 inserted through the hollow shaft 61
Is integrally provided on the first rotating case 51, and a gear 68a is provided on a protruding portion of the insertion shaft 68 to the second rotating case 52. The gear 68a is connected to the second gear via the counter gear 70.
It is in meshing relation with a gear 71a of a transplantation case mounting shaft 71 which is supported by the tip of the rotating case 52 and has one side protruding outside the case.

In the illustrated example, the first rotating case 51 and the second rotating case 52 are
It is merely an example, and other configurations may be adopted instead of these.

As shown in FIGS. 4 to 7, the transplant case 53 is a cotter.
It is integrally attached to the attachment shaft 71 by 73 or the like.
An opening / closing cam 76 and an extruding cam 77 are arranged side by side on a mantle shaft 74 through which the mounting shaft 71 is inserted and fixed to the second rotating case 52. Inside the transplant case 53, an opening / closing shaft 79 orthogonal to the mounting shaft 71 and an extrusion shaft 80 parallel to the mounting shaft 71 are provided. The opening / closing shaft 79 is attached to the opening / closing shaft 76 by a spring 82.
A cam follower 83 that is pressed and biased is attached to the.
Further, a cam floor 86 is attached to the push-out shaft 80 and is biased by the spring 85 against the push-out cam 77.

The pair of transplanted claws are a fixed claw and a movable claw, and the fixed claw 55 (A) is fixed to the side surface portion of the transplantation case 53, and the opening / closing shaft 79.
The movable claw 55 (B) is attached to the lower end protruding portion of the.
Both nails are bent forward after projecting forward,
The lower end portion is a spatula-shaped holding portion 55a.

The seedling extrudates 56, 56 have their upper ends fixed to the front ends of the mounting rods 90 provided substantially horizontally on the side of the transplant case 53.
The mounting rod 90 is a bracket protruding from the rear of the transplant case 53.
The rear end of the swing arm 92 pivotally attached to the shaft 91 is connected to the lower end of the swing arm 92, and the lower end of an arc-shaped swing fitting 94 fixed to the protruding end of the push-out shaft 80 has an intermediate portion. The parts are connected. The seedling extruding bodies 56, 56 are made of an elastic body such as a leaf spring, and their lower ends are constantly in pressure contact with the lower inner surfaces of the transplanting claws 55 (A), 55 (B).

Further, a soil cover plate 97 is horizontally attached to a lower end portion of a hanging rod 96 fixed downward from the front portion of the attachment rod 90 so as to be positioned behind the seedling extrusion bodies 56, 56.

The transplant device 50 performs the following operations.

By the rotation of the insertion shaft 67 that is driven by the drive shaft 63,
The first rotary case 51 integrated with the insertion shaft 67 is indicated by an arrow X in FIG.
Rotate in the direction. On the other hand, the hollow shaft 60 rotates at a higher speed than the insertion shaft 67, and the rotation of the hollow shaft 61 transmitted from the hollow shaft 60 causes the second rotary case 52 integrated with the hollow shaft 60 to move in the direction of the arrow Y (the arrow X and the opposite body). Direction) at a speed that is about twice the rotation speed of the first rotating case. The transplant case mounting shaft 71 is rotated by being transmitted from the insertion shaft 68 via the counter gear 70, but does not rotate relative to the machine due to the relationship of the gear ratios. Therefore, the transplant case 53, the transplant nail 5, and the seedling extrusion body 56 attached to the transplant case 53 always maintain the same posture during the work.

The transplanted nail 55 (A, B) moves by drawing a locus P of an elongated closed loop vertically. Then, the movable claw 55 (B) is closed at a point A on the locus P, that is, at a position of the seedling take-out port 30 of the seedling receiving frame 31,
The movable claw 55 (B) is designed to open at a point, that is, at the bottom of the locus. Further, at the point C, that is, at a position slightly higher than the point B in the ascending stroke, the seedling extruding bodies 56, 56 perform downward movement.

An attachment frame 100 is provided at the center of the horizontal bar 13, and a hole making device 101 is provided on the attachment frame 100. The hole making device 101 is a mounting frame.
A first arm 103 supported by a shaft 102 of 100 and a second arm 105 provided on a horizontal shaft 104 below the shaft 102 support a hole-making claw 106 having a sharp lower end in a scoop shape. The cam shaft 108 of the inter-stock case 11 is provided with a claw-shaped hole-forming cam 109 that is in sliding contact with the upper surface of the first arm. This making hole cam 109
When is rotated, the claw portion 109a of the hole making cam intermittently pushes down the convex portion 103a of the first arm, so that the hole making claw 106 periodically moves up and down.

The seedlings for transplantation of this vegetable transplanting machine 1 are mat-like ones with soil, or pot-like ones (shown in FIG. 10) grown in a paper-made seedling raising device in which pot containers are vertically and horizontally connected. used. When starting work, this seedling is supplied to the seedling supply table.
Set on 20 transfer belts 27. In addition, seedling supply table 20
A spare seedling may be placed on the front part of the plant, that is, the part of the bottom plate 25b. Then, the engine is started to start transmission to the rotating parts, and the aircraft is run with the left and right drive wheels 6, 6 and the tail wheels 15, 15 straddling the transplantation ridge 120 in the field.

The seedling supply table 20 reciprocates in the left-right direction via the lead member 39 by the rotation of the lead cam shaft 37. Therefore, the seedlings in the last row are sequentially supplied to the seedling take-out port 30 of the seedling receiving frame 31. When the seedling supply table 20 moves to the left and right ends, the drive lever 41 engages with the rotor 40 to rotate, and this rotation is transmitted to the roll shaft 26a via the ratchet mechanism, and the transfer belt 27 indicates the arrow Z. Rotate a predetermined amount in the direction and transfer the seedlings backward by one row. Make a reciprocating motion to the left and right again,
The seedlings are supplied to the seedling take-out port 30.

The seedling 122 supplied to the seedling take-out port 30 is a pair of transplanted nails 55 (A, B).
It is sandwiched by the sandwiching portion 55a. Transplant nail 55 (A,
B) rushes into the soil through the outward path, but since it pokes into the hole previously formed by the hole making device 101, it does not give a large impact to the seedlings. Transplant nail 55 (A,
When (B) reaches the bottom of the locus P (point B), the movable claw 55
(B) opens to release the seedling, and the transplanted claw 55 (A, B) returns to the original position through the return path. Nail transplant 55 (A, B) when returning
When the seedling extrudates 56, 56 slightly rises (point C), that is, when the seedling extrudates 56, 56 pass through the lowermost part of the locus P and enter the ascending stroke. Therefore, even after the movable claw 55 (B) is opened, when the seedling is still attached to the transplanted claw 55 (A, B) and lifted, the seedling extrudates 56, 56 remove the soil portion 122a of the seedling. The seedling 122 is pushed down to separate from the transplanted nail 55 (A, B). Since the protruding time of the seedling extruding bodies 56, 56 is set slightly higher than the lowermost part of the locus P, the seedling extruding bodies 56, 56 do not force the seedlings into the soil and the seedlings are not damaged. In addition, since the seedling extruded body 56, 56 is elastically pressed against the inner surface of the transplant nail 55 (A, B), the mud adhered to the transplant nail during the above operation is scraped off and the next transplant operation is performed. In the case of, it is possible to pinch the seedlings accurately, because the whole of the transplanting device 50 is advancing along with the progress of the aircraft, the soil cover rod 97 presses the soil forward from the rear of the planted seedling, Cover the seedlings after transplantation with soil.

[Effects of the Invention] As is clear from the above description, in the vegetable transplanter according to the present invention, the seedling extruded body moves downward while the transplanted nail passes through the lower end portion of its movement path and moves in the ascending stroke. Since the seedlings are then pushed out, the seedlings are not forced into the soil when the seedling extruding body is activated, and it is possible to plant the seedlings without collapse or damage.

[Brief description of drawings]

1 is a side view of a vegetable transplanter according to the present invention, FIG. 2 is a plan view thereof, FIGS. 3 to 7 are explanatory views of a transplanting device, and FIG. 3 is a first transmission case and a first transmission case. 2 Cross-sectional view of the transmission case, FIG. 4 is a plan view of the transplantation case, FIG. 5 is a side view thereof, FIGS. 6 and 7 are cross-sectional views of essential parts thereof, and FIG. FIG. 9 is a side view of the hole making device, FIG. 9 is a rear view of the hole making device when the hole is descending, and FIG. 10 is an explanatory view showing a transplanted state of seedlings. 1 ... Vegetable transplanter, 2 ... Engine, 3 ... Mission case, 5,8,9,10 ... Transmission case, 6 ... Drive wheel, 20 ...
… Seedling supply table, 50 …… Transplanting device, 51 …… First transmission case,
52 …… Second transmission case, 53 …… Transplanting case, 55 …… Transplanting claw, 56 …… Seedling extrusion body, 101 …… Hole making device

Claims (1)

[Claims] 1. A vertical movement is performed by drawing a closed loop locus,
The seedlings of vegetables supplied from the seedling supply table are sandwiched at the upper part of the closed-loop locus, and the transplanting nails for opening the seedlings at the lower end to be planted in the field, and the seedling extruding body that pushes the seedlings downward during planting are provided. In the vegetable transplanter, the vegetable transplanter is configured such that the seedling extruding body moves downward while the transplanting claw passes through the lower end of the locus and moves in the ascending stroke.