JPH0723628A - Seedling transplanter - Google Patents

Abstract

PURPOSE:To provide a seedling transplanter capable of carrying out the planting in one or many rows corresponding to ridges of various widths thereof. CONSTITUTION:This seedling transplanter is obtained by installing right and left wheels provided on both right and left sides of a machine body having a transplanting device so as to enable respective free positional regulations thereof in the right and left directions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling transplanter capable of planting seedlings on various ridges.

[0002]

2. Description of the Related Art As a conventional technique of this kind, Japanese Patent Laid-Open No.
As shown in Japanese Patent No. 303405, there is one in which a body having an implanting device is moved left and right with respect to left and right wheels that are fixed to a wide width.

[0003]

The prior art is capable of planting multiple rows of seedlings on a ridge, but is only applicable to one ridge width, and the ridge width is different in various parts of Japan. Then, it was poor in versatility.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the prior art, the present invention adjusts the left and right wheels provided on both the left and right sides of the machine body in the left and right directions with respect to the machine body having an implanting device. This is a seedling transplanter characterized by being freely installed.

[0005]

According to the present invention, single-row planting or multi-row planting can be performed corresponding to ridges of various ridge widths, and the conventional problems can be solved.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A walking type vegetable seedling transplanting machine according to an embodiment of the present invention will be described in detail below with reference to the drawings. Reference numeral 1 denotes a mission case, which is provided with left and right wheel drive shafts 1a, 1a protruding on both left and right sides.

An engine 2 is directly connected to the front end of the transmission case 1 via a clutch case 3.
The clutch case 3 has a centrifugal clutch therein, and is provided to transmit the power of the engine 2 to the mission case 1 when the rotation of the engine 2 reaches a certain level or above (more than the proper number of seedling transplanting work). Reference numeral 4 denotes a planting section transmission case, which is a transmission case through a transmission case 5 and a frame 6.
It is fixedly connected to the rear of the space 1.

Reference numeral 7 denotes a sub-transplantation transmission case, which is fixedly connected to the rear part of the planting section transmission case 4 with an inclination toward the upper rear of the machine body. Reference numeral 8 denotes a handle support frame, the base portion of which is fixed to the upper end portion of the sub-plantation transmission case 7. Reference numeral 9 denotes a handle, which is fixed to the upper end of the handle support frame 8.

A frame 10 connects the handle support frame 8 and the planting part transmission case 4. 11/11
Is a left and right wheel support case, the front end portion of which is externally fitted to the left and right wheel drive shafts 1a, 1a so as to be movable left and right, and a wheel transmission case 12, 12 directed downward is provided at the front portion thereof. The left and right driving front wheels 13 and 13 are mounted on the front ends of the wheel transmission cases 12 and 12 so as to be movable. The wheel support arms 14 and 14 are rotatably provided at the rear ends of the left and right wheel support cases 11 and 11.
Left and right rear wheels 15, 15 are mounted on the lower end of 14. However, the left and right front drive wheels 13 are driven and rotated by the rotation of the left and right wheel drive shafts 1a and 1a. Although the left and right wheel drive shafts 1a and 1a are exposed in the figure, it is better to cover them with a well-known bellows-shaped covering member.

Reference numerals 16 and 16 are left and right hydraulic cylinders, the bases of which are fixed to the transmission case 5 and the frame 6, respectively, and the tips of the pistons 16a and 16a are pivotally attached to the left and right wheel support cases 11 and 11. The left and right wheel support cases 11.1 by expanding and contracting the left and right hydraulic cylinders 16 and 16.
1 is configured to move left and right respectively. 17 ・ 17
Is a support shaft fixed to the inside of the rear end of the left and right wheel support cases 11 and 11 and is provided so as to be supported by penetrating the frame 4a fixed to the planting section transmission case 4. The left and right wheel support cases 11, 11 are configured to be capable of supporting the left and right movements.

Reference numeral 18 denotes a hydraulic device, which is composed of a hydraulic cylinder 19 and a hydraulic valve 20, and is fixed to the rear end of the transmission case 1. Reference numeral 21 denotes a hydraulic piston, which is mounted on the hydraulic cylinder 19 so as to be able to move back and forth in the lower direction, and the balance device 2 is provided at the tip thereof.
2 is installed. The balance device 22 includes the hydraulic piston 2
1, a horizontal pipe 24 pivotally attached to the horizontal pipe 24, support shafts 25, 25 mounted so as to be able to expand and contract in the left and right directions while being fitted on the left and right sides of the horizontal pipe 24, and the support shaft 25.2.
5, the left and right end portions of the support shafts 25, 25 and the connecting rods 26, 26 for connecting the left and right end portions of the wheel 5 to the upper portions of the left and right arms 12a, 12a fixed to the wheel transmission cases 12, 12. Connecting rod 2 for connecting the upper part of the support arm 14/14
It is composed of 7 and 27. However, due to the hydraulic piston 21 moving in and out in the lower direction, the left and right driving front wheels 13 ,.
13 and the left and right rear wheels 15 and 15 are configured to move up and down by the same amount, and the left driving front wheel 13 and the left rear wheel 1
5 and the right driving front wheel 13 and the right rear wheel 15 are configured to move up and down in a contradictory manner. That is, the left and right driving front wheels 13
・ 13 and the left and right rear wheels 15 ・ 15 are connected to the balance device 22 so that the field is tilted to the left and right (in the ridges C laid with the multi-film A, the ridges C prevent the multi-film A from peeling off). The earth fill B is provided on the mulch film A in between), and the fuselage is made substantially horizontal by interlocking with each other and moving up and down in reverse.

Numeral 28 is a seedling table, which is a standing frame 29, 29 on the left and right.
The seedling transfer belt 3 wound around the bottom plate space of the frame made up of the front and rear bottom plates 30 and 31 and stretched in the front-rear direction.
It has a structure provided with 2. Reference numeral 33 is a belt winding drive roll, and 34 is a belt winding driven roll. Then, the belt winding drive roll 33 is rotated by a certain amount when the seedling placing table 28 reaches the left and right ends, so that the planting section transmission case 4 can be rotated.
It is driven through an appropriate intermittent drive mechanism that has a driven cam that is driven by a drive cam that is fixed to the extended drive shaft. However, the seedling transfer belt 32 rotates a certain amount (only one seedling width) when the seedling placing table 28 moves to the left and right ends, and the seedlings placed on the seedling placing table 28 are transferred to the seedling receiving frame described below. It is configured to transfer to 35.

Reference numeral 35 denotes a seedling receiving frame, which is located on the rear end side of the seedling mounting table 28, is attached to the sub-planting transmission case 7, and is provided with a seedling take-out port 35a in the left and right central portions. The rear half of the seedling receiving frame 35 is bent downward, and the tip end locus P of the seedling planting claws 40a and 40b described below passes through the bent portion. Therefore, since the rear half of the seedling receiving frame 35 has a shape bent downward, as shown in FIG. 4, a space b between the seedling a at the end and the seedling a next to the seedling a is opened so that the seedlings can be easily separated. become. In addition, the inclination angle of the first half of the seedling receiving frame 35 is the seedling mounting table 28.
The inclination angle is substantially the same as the inclination angle of 15 to 20 degrees from the horizontal, and the inclination angle of the rear half of the seedling receiving frame 35 is set to the angle of 50 to 60 degrees from the horizontal.

Reference numeral 36 denotes a seedling receiving rod composed of a rod, and the left and right standing frames 29, 29 of the seedling placing table 28 above the seedling receiving frame 35.
The lower end is opened in a comb-teeth shape and fixed to the mounting plate 37 which is laterally extended between them, and each of the seedling receiving rods 36 ... Supports the rear side of the pot container a for each plant of the vegetable seedling. It is provided to do. Denoted at 38 is a brush made of polypropylene (which may be made of any material such as soft synthetic resin or animal hair), and like the seedling receiving rod 36, a mounting plate 37 is provided.
It is provided by hanging it in the shape of a warm curtain, and is arranged closer to the transplantation device 39 described later than the seedling receiving rod 36.

The seedling fixing claw 40a and the seedling moving movable claw 40b, which will be described later, plunge into the seedling mounting table 28 with the seedling receiving rod 36 interposed therebetween, and one seedling (one pot container). Operate to hold the split. Reference numeral 41 denotes a front supporting roller of the seedling mounting table 28. The seedling mounting table 28 is planted with a rail 42 fixed to the lower surface of the front part thereof mounted on the front supporting roller 41. The seedling mounting table 28 which moves to the left and right by engaging with the spiral shaft that is transmitted and rotated by the seedling mounting table moving case 4 ′ whose lower part is fixedly attached to one side of the attached part transmission case 4 and moves left and right by the spiral groove of the spiral shaft. It is driven by a general left-right drive mechanism constituted by a sliding cam connected to the bottom surface of the base and moves left and right laterally reciprocally. In addition, the rear side of the seedling mounting table 28 is supported by a guide rail 43 formed integrally with the seedling receiving frame 35 and having a square shape in a side view via a sliding body fixed to the rear lower surface of the seedling mounting table 28. There is.

Reference numeral 39 denotes a transplanting device, which comprises a box-shaped transplanter main body 45 having a hollow interior, and two iron plate-made seedling planting claws and a seedling pushing device 46, which are a seedling planting fixed claw 40a and a seedling planting movable claw 40b. The seedling planting tool main body 45 is provided with an operating mechanism for the movable seedling planting claws 40b so that the seedlings can be clamped or conversely opened. And
The seedling pushing tool 46 is configured to move down at the same speed as the rising speed of the seedlings 40a and 40b from the moment when the seedlings 40a and 40b hold the holding seedling. Even if the seedling planting claws 40a and 40b move upward from the position where they are planted in the field, the seedling planting claws 40a and 40b do not move.

The main body 45 of the transplantation device 39 is pivotally attached to the first rotary case 47, the first rotary case 47 is pivotally attached to the second rotary case 48, and the transplantation device 39 is attached. Planting nails 4
The first rotating case 4 is arranged so that the locus P drawn by the ends of the 0a and 40b is narrow in the front-rear direction and long in the up-down direction.
7 and the second rotary case 48 have a built-in transmission mechanism, and the base of the second rotary case 48 is pivotally attached to the sub-plantation transmission case 7 by a shaft 49.

Reference numeral 50 denotes an opening device for forming a hole in the mulch film A at a position for planting seedlings to form a seedling planting hole on the upper surface of the ridge C. Reference numeral 51 is a nozzle of a gas burner, which is provided so that a gas supplied from a gas cylinder 52 provided in the handle support frame 8 through a rubber pipe 53 is burned and a flame is constantly ejected toward the opening device 50. ing. Then, as shown in FIG. 1, the tip of the nozzle 51 is set to a position where the lower end portion of the opening device 50 is heated when the opening device 50 is located at the highest position in the movement trajectory.

Reference numeral 54 is a sensor for detecting the upper surface of the ridge C, the lower part of which is in contact with the multi-film A on the upper surface of the ridge C to move up and down and the upper part of which is linked to the hydraulic valve 20. The upper surface of the ridge C is detected such that the depth H is always constant, and the hydraulic valve 20 is switched to move the hydraulic piston 21 back and forth in the lower direction to drive the left and right front wheels 13.1.
3 and the left and right rear wheels 15 and 15 are configured to move up and down.

Reference numerals 55 and 55 are left and right earth moving devices for bringing soil from the right and left sides of the seedlings planted on the upper surface of the ridge C to fill the seedling planting holes and surely plant the seedlings in the ridge C. It is composed of left and right rolling wheels. Reference numerals 56, 56 are general left and right side clutch levers for turning on and off the left and right side clutches of the left and right driving front wheels 13, 13, respectively.

Reference numeral 57 is a planting clutch lever that activates or deactivates the seedling mounting table 28, the transplanting device 39, and the opening device 50. Reference numeral 58 is a hydraulic lever, which is linked to the hydraulic valve 20 via a connecting wire, and the left and right drive front wheels 13 ,.
13 and the left and right rear wheels 15 and 15 are automatically controlled to move up and down, and the left and right drive wheels 13 and 13 and the left and right rear wheels 15 and 15 can be forcibly moved down to the machine body lift position. Is configured.

Reference numeral 59 is a throttle lever for adjusting the rotation speed of the engine 2. Reference numerals 60a and 60b respectively denote left and right wheel movement operation levers, and when pulled to the front, the left and right hydraulic cylinders 16 and 16 contract and the left and right wheel support cases 11 and
When the left and right wheel cylinders 11 and 11 are moved toward the machine body and pushed in the direction, the left and right hydraulic cylinders 16 and 16 are extended to move the left and right wheel support cases 11 and 11 to the outside of the machine body.

Next, the case of performing seedling planting work with the above-mentioned walking type vegetable seedling transplanting machine will be explained. The left and right driving front wheels 13 and 13 and the left and right rear wheels 15 and 15 of the seedling planting machine use the multi-film A. Set the machine so that it straddles the ridge C of the stretched field,
After the pot-shaped vegetable seedlings cultivated by a paper-made seedling growing machine in which pot containers a are continuously arranged vertically and horizontally on the seedling placing table 28 are placed and accommodated, the engine 2 is started to start the throttle lever. When 59 is raised from the idling speed to the seedling planting work speed, the power of the engine 2 is transmitted to each rotating portion via the centrifugal clutch in the clutch case 3, and the left and right drive wheels 13.1.
The rotation of 3 propels the airframe.

At this time, when the ignition switch is turned on and the flame is ejected from the nozzle 51 to heat the hole opening device 50 to a high temperature, and the planted clutch lever 57 is operated to the clutch on position, the seedling is driven by the power of the engine 2. Since the platform 28 is reciprocally rocked in the left-right direction via the left-right drive mechanism, the bottom surface and the tip side of the tip of the seedling located on the rear end side are received by the seedling receiving frame 35 and the seedling receiving rod 36, respectively. In this state, the seedlings are moved to the left and right, and the seedlings are delivered to the seedling take-out port 35a, and are sequentially grasped by the seedling planting claws 40a and 40b of the transplanting device 39 that draws the seedling planting locus P. On the other hand, the heated opening device 50 forms a seedling planting hole on the upper surface of the ridge C while making a hole in the seedling planting position of the mulch film A.

Further, by detecting the upper surface of the ridge C of the sensor 54, the left and right driving front wheels 13, 13 and the left and right rear wheels 15.1.
5 is automatically adjusted up and down, and the seedlings are always planted in the ridge C at a predetermined planting depth H. Then, for example, in the case of planting three rows of seedlings on the upper surface of the ridge C, first, the left and right wheel support cases 11, 11 are moved left and right by operating the left and right wheel movement operation levers 60a, 60b by the same amount. Front wheel 13
・ 13 and the left and right rear wheels 15 ・ 15 are located in the ridge, and the position of the wheels is adjusted so that the planting position is in the center of the ridge. Running in this state, seedlings are planted in the center of the ridges to form a seedling row L1. After that, the left and right wheel moving operation levers 60a and 60b are operated to adjust the position of the wheels so that the left and right driving front wheels 13 and 13 and the left and right rear wheels 15 and 15 are located in the ridge groove and the planting position is at the end of the ridge. Then, the seedling rows L2 and L3 are sequentially planted.

When it is desired to check the operating states of the seedling table 28, the transplanting device 39, and the opening device 50 by stopping the progress of the machine body, the left and right side clutch levers 56, 56 are operated while the side clutch is disengaged. It is possible to operate only the seedling placing table 28, the transplanting device 39, and the opening device 50 by increasing the rotational speed of the engine 2 with the lever 59 and connecting the centrifugal clutch to operate the clutch clutch lever 57 with the clutch. it can.

[Brief description of drawings]

FIG. 1 is an overall side view of a walking type vegetable seedling transplanting machine.

FIG. 2 is a plan view of an entire main part of a walk-behind vegetable seedling transplanting machine and a cross-sectional explanatory view of a ridge.

FIG. 3 is a plan view of a main part of the balance device 22.

FIG. 4 is a side view for explaining the operation of a seedling take-out portion of the seedling placing table 28.

FIG. 5 is a rear view showing the operation of the seedling take-out portion of the seedling table 28.

[Explanation of symbols]

 13 ・ 13 Left / right drive front wheel 15 ・ 15 Left / right rear wheel 28 Seedling stand 39 Transplanter

Claims (1)

[Claims] 1. A seedling transplanting machine, wherein right and left wheels provided on both left and right sides of the machine having a transplanting device are provided so as to be positionally adjustable in the left and right directions, respectively.