JP3097252B2 - Vegetable transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arrangement structure in a vegetable transplanter provided with a seedling mounting table and a seedling plant on an airframe having a pair of left and right front wheels and a rear wheel running over a ridge formed in a field. It is about.

[0002]

2. Description of the Related Art Conventionally, on a body having a pair of left and right front wheels and a rear wheel running across a ridge formed in a field, a seedling mounting table for mounting vegetable seedlings and vegetable seedlings from the seedling mounting table one by one. 2. Description of the Related Art A walking-type vegetable transplanter provided with a seedling plant that is taken out and planted in a field is known. This conventional vegetable transplanter,
The engine is mounted at the front of the fuselage, the steering handle is provided at the rear, and a pair of left and right driving front and rear wheels that can be adjusted up and down is equipped. On the aircraft between the engine and the steering handle, there is a seedling rest on which many vegetable seedlings are placed,
It is provided inclining in the front-rear direction so that the front end is higher and the rear end is lower. A seedling plant is disposed corresponding to the inclined rear end side of the seedling mounting table.

[0003]

In the above-mentioned conventional vegetable transplanting machine, a driving front wheel is provided on the front side of the fuselage, and a rear wheel following the driving front wheel is provided on the rear side of the fuselage. As a result of running, it was difficult to always pass through the center of the ridge, and there was a problem that seedlings could not be planted at the center of the ridge. Further, since the drive front wheel can be vertically moved, there is also a problem that it cannot sufficiently cope with the left-right inclination of the body. The present invention has been made to solve the above problems.

[0004]

According to the present invention, a vegetable seedling is mounted on an airframe having a pair of left and right front wheels and a rear wheel running across a ridge formed in a field. In a vegetable transplanter provided with a seedling mounting base and a seedling plant for taking out one plant at a time from a seedling mounting base and planting the seedlings in a field, at the front of the body, a pair of left and right front wheels are moved up and down in opposition to each other. Support, at the rear, support a pair of left and right rear wheels that rotate and receive the power, so that the left and right wheels are adjusted up and down relatively, draw a predetermined trajectory with respect to the seedling mounting table The present invention is characterized in that an actuated seedling plant is provided.

[0005]

According to the above construction, the vegetable transplanter of the present invention supports a pair of left and right front wheels at the front of the body so as to move up and down in opposition to each other, and receives the power to rotate the front wheels at the rear. The pair of left and right rear wheels is supported so that the left and right wheels can be adjusted up and down relatively, so that the front wheel is pushed from behind by the rotational drive of the driven rear wheels, and the aircraft advances, and the front wheels are contradictory The vehicle travels along both sides of the ridge while moving up and down, the airframe moves substantially along the center of the ridge, and the seedlings can be planted at approximately the center of the ridge in the width direction by the seedling plant. Further, the rear wheels can be relatively vertically moved and adjusted in accordance with the left and right inclination of the body due to the contradictory vertical movements of the front wheels, so that the body can be always maintained in an appropriate posture.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the accompanying drawings. In FIG. 1, a walking type vegetable transplanter 1 has an engine 2 mounted on the rear part of the fuselage, and a steering handle 3 is provided behind the engine 2 so as to be eccentric to one side from the center in the width direction of the fuselage. Parallel link support mechanism 4 shown
, The pair of left and right front wheels 5 is supported so as to be able to move up and down oppositely. The parallel link support mechanism 4 comprises a pair of upper and lower horizontal links 6 and a pair of front wheel supports 7 on the left and right sides forming a parallel link, and an intermediate portion thereof is pivotally attached to a support arm 8 fixed to the body, and 5 moves up and down contrary to each other. A transmission case 10 is connected to a front side of the engine 2 via a centrifugal clutch case 9 having a built-in centrifugal clutch, and a transmission case 11 which also serves as a body frame extends from the transmission case 10 forward.

A base end of a wheel transmission case 12 is supported on both left and right sides of the transmission case 10 so as to be rotatable in the front-rear direction. A driving rear wheel 13 is pivotally supported at a distal end of the wheel transmission case 12. I have. A hydraulic device 14 is provided on the transmission case 11 in front of the transmission case 10, and a balance mechanism 16 is attached to the hydraulic cylinder 15 at the tip of a piston that advances and retreats in the front-rear direction.
A base end of the wheel transmission case 12 is connected to both ends of the swinging rod 17 via a swinging rod 17, and a hydraulic cylinder is inserted into one of the swinging rods 17 (not shown) (FIG. 4).
reference). The left and right driving rear wheels 13 are relatively vertically adjustable, and travel together with the front wheels 5 and 5 across a ridge N formed in a field.

On the body between the engine 2 and the front wheel 5, a large number of vegetable pot seedlings are arranged in a matrix, and a seedling table 18 for mounting a seedling sheet having a rectangular planar shape.
Is provided. The seedling mounting table 18 is supported by being tilted in the front-rear direction so that the front end side is low and the rear end side is high, and a seedling transfer belt 19 is provided on the seedling mounting surface. It is supported by the support rollers 21 and reciprocates with a predetermined stroke in the left-right direction of the body. A seedling receiving frame 22 is fixedly provided on the machine body side at the front end of the seedling mounting table 18.
A seedling outlet is provided at the center on the left and right.

The left-right reciprocating device 20 receives power from the transmission case 11 and reciprocates the seedling mounting table 18 left and right. A seedling plant 24 is mounted via a double crank mechanism 23 that operates by receiving power from the transmission case 11 and corresponds to the seedling outlet of the seedling receiving frame 22. The seedling-planting body 24 moves so that the tip thereof draws a long trajectory P up and down, so that the seedlings are taken out one by one from the seedling outlet of the seedling receiving frame 22 and planted in the ridge N. A link arm 2 operating in synchronization with the operation of the seedling plant 24 is provided in front of the seedling planting position by the seedling plant 24.
5, a groove forming body 26 for opening a groove for planting seedlings on the ridge N is provided. Also, on the front side of the groove body 26,
When a multi-film is laid on the ridge N, a film presser 27 which also serves as a sensor and presses the film surface is provided.

[0010] In the vegetable transplanter of one embodiment configured as described above, when the seedling transplanting operation is performed, the body is run with the pair of left and right front wheels 5 and rear wheels 13 straddling the ridge N. At this time, the rear wheel 13 is driven and the body travels and moves in a state of being pushed from the rear, and the front wheel 5 supported by the parallel link support mechanism 4 moves up and down oppositely to the left and right while moving up and down.
Rolls along the ridges N on both sides of the ridges, and serves to steer the aircraft along the ridges N. As a result, the center of the fuselage in the width direction moves substantially through the center of the ridge N in the width direction.
When the body is tilted left and right due to the unevenness between the ridges on both sides of the ridge N, the hydraulic cylinder 15 is extended and retracted to operate the balance mechanism 16, and the base end of the wheel transmission case 12 is moved via the swing rod 17. By turning, the left and right driving rear wheels 13 are adjusted to move up and down relatively to keep the body substantially horizontal.

When the multi-film is laid on the ridge N, the upper surface is pressed by the film retainer 27, and the seedling planting groove is opened by the groove forming body 26 (even when the multi-film is not laid). In the same way, the seedling plant 24 that moves along the locus P by the double crank mechanism 23 in the seedling mounting groove takes out seedlings one by one from the seedling take-out opening of the seedling receiving frame 22 during the exercise process. The opening of the seedling planting groove and the planting of the seedlings are performed substantially at the center in the width direction of the ridge N, and the opening of the seedling planting groove and the planting operation of the seedlings are performed in synchronization with each other. The seedlings planted in the seedling planting grooves are crushed by a crushing ring (not shown) and stably planted (see FIG. 4).

The vegetable transplanter 1 according to the second embodiment of the present invention shown in FIGS. 3 and 4 has almost the same configuration as that of the embodiment shown in FIGS. 1 and 2, and the common components are denoted by the same reference numerals. And the description is omitted. In the vegetable transplanter 1 according to the second embodiment, the base end of the swinging arm 28 which is rotatably supported in a horizontal direction by a pin 29 with respect to the body is provided further forward of the parallel link support mechanism 4. , A pair of left and right ridge guide wheels 30
And the swing arm 28 and the parallel link support mechanism 4 are connected by the connecting arm 31 so that the ridge guiding wheel 30 and the front wheel 5 are interlocked. A hydraulic cylinder 17a is inserted into one of the swing rods 17. Further, a crushing pressure reduction wheel 32 is provided behind the seedling planting position.

In the vegetable transplanter 1 according to the second embodiment having the above-described configuration, when the pair of left and right front wheels 5 and the rear wheels 13 travels over the ridge N, the pair of left and right ridge guide wheels 30 is used.
Rolls over the shoulder of the ridge N and moves faithfully along the ridge N.
Then, the parallel link support mechanism 4 is connected via the connecting arm 31.
Is operated, the aircraft is steered and moved in a state where the front wheel 5 is interlocked with the ridge guiding wheel 30, and the vehicle travels such that the center in the width direction of the aircraft passes substantially the center of the ridge N in the width direction. As a result, the opening of the seedling planting groove by the grooving member 26 and the seedling planting by the seedling planting member 24 are accurately performed at substantially the center of the ridge N in the width direction.

[Brief description of the drawings]

FIG. 1 is an overall side view of an embodiment of the present invention.

FIG. 2 is a rear view of the parallel link support mechanism.

FIG. 3 is an overall side view of a second embodiment of the present invention.

FIG. 4 is a plan view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vegetable transplanter 2 Engine 3 Steering handle 4 Parallel link support mechanism 5 Front wheel 6 Side link 7 Front wheel support 8 Support arm 9 Centrifugal clutch case 10 Transmission case 11 Transmission case 12 Wheel transmission case 13 Drive rear wheel 14 Hydraulic device 15 Hydraulic cylinder 16 Balance Mechanism 17 Swing Rod 18 Seedling Stand 19 Seedling Transfer Belt 20 Left and Right Reciprocating Device 21 Support Roller 22 Seedling Receiving Frame 23 Double Crank Mechanism 24 Seedling Plant 25 Link Arm 26 Groove Groove 27 Film Holder 28 Swing Arm 29 Pin 30 Ridge guide wheel 31 Connecting arm 32 Soil crushing ring N Ridge P Tip trajectory of seedling plant

Claims (1)

(57) [Claims] 1. A seedling mounting table for mounting vegetable seedlings and a vegetable seedling taken out of the seedling mounting table one by one on an airframe having a pair of left and right front and rear wheels running across a ridge formed in a field. In a vegetable transplanter provided with a seedling plant to be planted in a field, a pair of left and right front wheels are moved up and down opposite to each other at the front of the machine .
Supported on so that, in the rear, left and right rear wheels pair for rotating by receiving power, is supported as the right and left wheels are relatively moved vertically adjusted, a predetermined trajectory relative to the seedling stage A vegetable transplanter, comprising a seedling plant that operates by drawing a vase.