JP3254811B2 - 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 a vegetable transplanter capable of transplanting seedlings in a field covered with a multi-film.

[0002]

2. Description of the Related Art In order to transplant a seedling in a field covered with a multi-film, it is necessary to make a hole in the seedling transplant portion of the multi-film at the time of transplanting the seedling. I couldn't do that.

[0003]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to enable a vegetable transplanter to perform a multicut properly.

[0004]

In order to solve the above problems, the present invention has the following arrangement. That is, the claims
The vegetable transplanter described in 1 above intermittently moves up and down so that at least a part thereof is inserted into the soil when located at a lower position, and forms a hole or a groove for transplanting seedlings in a field scene. A digging tool and a digging tool that emits a flame from above
Burner and a digging tool for the flow of the flame of the burner
And a guide plate for guiding to the side .

[0005] A vegetable transplanter according to claim 2
Means that at least a part of it is
Moves up and down intermittently as it is inserted, and transplants seedlings to the field scene
Earth digger to form a hole or groove for drilling
A burner that radiates a flame to heat the digging tool;
Plate that blocks the flow of flames from the
It is characterized by doing.

[0006]

1 and 2 show an example of a walking type vegetable transplanter according to the present invention. This walking vegetable transplanter 1
It is divided into a traveling section 2 having a pair of left and right front wheels and rear wheels provided across the ridge, and a planting unit 3 having a respective device for seedling transplantation.

An engine 5 and a main transmission case 6 are arranged at the front of the traveling section 2. A front wheel drive case 9 is provided at the tip of rotating cylinders 7, 7 projecting from the left and right side surfaces of the main transmission case. , 9 are provided obliquely downward and rearward, and front wheels 10, 10 as propulsion wheels are pivotally supported at lower ends of the front wheel drive cases 9, 9.

A front end of a main frame 12 having a transmission means therein is fixedly connected to the rear left side of the main transmission case 6, and the main frame 12 extends rearward therefrom. A sub-frame (not shown) is provided on the right side of the body in parallel with the main frame 12. The rear ends of the main frame 12 and the sub-frame are connected by a horizontal frame 13. A rear wheel support shaft 15 is supported on the left and right under the horizontal frame 13,
Rear wheels 17, 17 are pivotally supported at lower ends of rear wheel support arms 16, 16 rotatably provided at both ends of the rear wheel support shaft 15, respectively.

Further, a base of a control section frame 19 is integrally attached to the right side of the horizontal frame 13, and a control box 20 is provided at a distal end of the control section frame 19 extending obliquely upward and rearward. A control handle 21 is provided in the control box.

[0010] The traveling unit body is raised and lowered by hydraulic pressure. As an elevating mechanism, a hydraulic pump 23 is integrally provided at a rear portion of the main transmission case 6, and a driving hydraulic cylinder 24 and a hydraulic valve 25 are provided near an upper portion thereof. When the hydraulic cylinder 24 contracts, the front wheel interlocking rod 2
7, 27 and the rear wheel interlocking rods 28, 28 and the like, the turning cylinder 7, 7 and the rear wheel support arms 16, 16 are turned in a predetermined direction, and the front wheels 10, 10 and the rear wheels 17, 17 move up and down. As a result, the aircraft moves up and down with respect to the ground.

The elevating mechanism is controlled based on the operation of the grounding body 30 which rotates up and down in response to a change in the height of the top soil surface of the ridge. That is, when the ridge is raised and the rear part of the grounding body 30 is pushed up, the hydraulic cylinder 24 is extended, and the front wheels 10, 10 and the rear wheels 17, 17 are simultaneously moved downward, and the body is raised. Conversely, when the ridge becomes low and the rear part of the grounding body 30 falls, the front wheels 10, 10 and the rear wheels 17, 17 simultaneously move upward, and the body descends. As described above, the depth of planting of seedlings by the planting apparatus described later is always kept constant by appropriately raising and lowering the running unit body in accordance with the change in the height of the top soil surface of the ridge.

The planting section 3 includes a planting section transmission case 32 which is transmitted from the main transmission case 6 via a transmission means in the main frame 12, and a seedling mounting table 3 on which seedlings are placed.
3. A planting device 34 for successively planting the seedlings on the seedling mounting table in a field scene, a soil digging device 35 for forming a seedling transplanting hole in a ridge, and filling the seedling transplanting hole after seedling transplanting with soil and surrounding the same. A pressure-reducing device 36 for repressing the pressure is provided.

The planting section transmission case 32 is located behind the main frame 12. A transmission cylinder 38 projects rearward from the back of the planting section transmission case 32, and a planting device 34 is provided inside the rear end. further,
At the rear end of the transmission cylinder 38, a plate-shaped frame 39 surrounding the planting device 34 is fixedly attached. The planting portion transmission case 32, the transmission cylinder portion 38 and the plate-shaped frame 39 constitute a planting portion frame. The planting section frame is connected to the frame on the running section side by a connecting shaft 40 so as to be rotatable up and down.

The seedling mounting table 33 is slightly inclined so that the front portion is higher, and the horizontal frame 4 is provided above the planting portion frame.
2 and a rail 44 provided at the front end of a seedling mounting table support frame 43 projecting forward from the planting portion frame. Then, the seedling mounting table 3 is moved by a lateral feed mechanism (not shown) driven from the planting section transmission case 32 via transmission means in the transmission case 46.
3 reciprocates left and right. The seedling mounting table 33 has an opening at the bottom, and a seedling feed belt 47 for transferring the seedlings on the table to the rear is assembled there. This seedling feed belt 4
Numeral 7 is intermittently circulated in a predetermined direction by a vertical feed mechanism (not shown) that operates when the seedling mounting table 33 reaches the end of the left and right strokes.

At the position adjacent to the rear end of the seedling mounting table 33, a seedling receiving plate 49 for receiving the last row of seedlings on the seedling mounting table 33 is provided integrally with the horizontal frame 42. At the center of the seedling receiving plate 49, a seedling outlet 50 cut out in a U-shape in plan view.
Are formed. Further, at the rear end of the seedling mounting table 33,
A comb-shaped seedling holder 51 is provided for holding the last row of seedlings on the seedling mounting table 33 so as not to fall from the seedling receiving plate 49.

When the seedlings are placed on the seedling mounting table 33 and each part is started, the seedling mounting table 33 moves laterally and the last row of seedlings located on the seedling receiving plate 49 is sequentially placed in the seedling removal port 50. Supply. When the seedling mounting table 33 reaches the end of the left and right strokes and has supplied all the seedlings in the last row to the seedling removal outlet 50, the seedling feeding belt 47 moves an appropriate amount, and the seedling group on the seedling mounting table 33 is moved by one. Transfer backward by the number of rows.

The planting device 34 includes a first rotating case 52 attached to the transmission cylinder 38 , a second rotating case 53 attached to a tip of the first rotating case, and a tip of the second rotating case. A transplant case 54 is provided, and the transplant case 54 is provided with a pair of implantation claws 55, 55 and a seedling extruded body 56. The implantation claws 55 are located symmetrically with respect to the left and right center lines of the body, and the seedling extruded body 56 is located at the left and right centers of the body. A plurality of shafts, gears, and the like are built in each case, and the transplantation case 54 is held in a fixed posture by the first rotation case 52 and the second rotation case 53 rotating in opposite directions in a predetermined direction. A closed loop motion is performed up and down while drawing a predetermined trajectory. At the upper part of the track, the planting claws 55, 55 are closed to clamp the seedling supplied to the seedling removal outlet, and at the lower part of the track, the planting claws 55, 55 are opened, and the seedling pushing rod 56 protrudes to move the seedling to the ridge. It is configured to be planted on the topsoil surface.

As shown in FIGS. 3 to 5, the earth digging device 35 includes a frame 6 provided on the side of the planting section transmission case 32.
0, the upper link 61 and the lower link 62 are pivotally supported, a connecting plate 63 is connected to the rear ends of the upper and lower links 61, 62, and a burner holder 64 is integrally attached to the connecting plate. An earth digging tool 65 is attached to the part almost vertically. The earth digging tool 65 is a vertically long plate-shaped member, and both left and right ends are bent rearward. By swinging the upper link 61 up and down by the cam mechanism including the cam 67 and the cam follower 68, the burner holder 64 and the earth digging tool 65 move up and down intermittently. During this operation, the earth digging tool 65 is always kept in a constant posture because the frame body 60, the upper and lower links 61 and 62, and the connecting plate 63 constitute a parallel link device.

The burner holder 64 holds a burner 70 for heating the earth digging tool. Fuel gas is supplied from a cylinder 71 attached to an intermediate portion of the control section frame 19 via a flexible hose 72. Burner 70
Is located just above the earth digger 65 and is directed downward. Therefore, the flame radiated from the nozzle is divided into two parts by the earth digging tool 65, and flows almost half by the front and rear sides of the earth digging tool 65. At the rear of the burner holder 64, a guide plate 74 for guiding the flame behind the front plate to the front plate side is attached. A heating plate 75 that blocks the path of the flame flowing behind the earth digging tool 65 is fixed to the rear surface of the earth digging tool 65 located below the lower end of the guide plate 74.

Further, the earth digging device 35 has a scraper 77 for removing the multi residue adhering to the earth digging tool 65. Bracket 7 fixed to planting section frame
8, a leaf spring-like mounting plate 79 is mounted, and a base 77a of a scraper 77 is fixed to the lower end of the mounting plate with bolts or the like. The mounting plate 79 is shifted to the left from the left and right center of the fuselage in order to avoid interference with the burner holder 64. The scraper 77 has a base 7
A blade body portion 77b projects rightward from 7a, and the blade body portion comes into contact with the front surface of the earth mining tool 65. The action of the leaf spring-like mounting plate 79, the blade portion 77 b is in contact with elastically swingable in the longitudinal direction.

The blade portion 77b has a plate shape that is long in the left and right direction and narrow in the front and back direction, and the contact portion 77c with the earth digging tool 65 is bent obliquely downward. For this reason, when the scraper 77 moves relatively downward with respect to the earth digging tool 65, the contact portion 77c of the scraper comes into acute contact with the front surface of the earth digging tool 65 (θ <90). Every time).

The earth digging device 35 is configured as described above.
The earth digging tool 65 moves up and down in synchronization with the planting device 34 .
As shown in FIG. 3, when the earth digging tool 65 is located at the lower part, the lower end thereof is inserted into the soil, and the lower end moves in the soil as the fuselage advances, so that A groove-shaped seedling transplantation hole A is formed.

When planting on the ridge covered with the multi-film M , the burner 70 is ignited to perform the work. The flame radiated from the nozzle of the burner 70 flows downward along the front part and the back part of the earth digging tool 65 as described above, and heats the earth digging tool 65. In particular, the flame flowing on the rear side of the earth digging tool 65 is guided by the guide plate 74 and hits the heating plate 75 to efficiently heat the front plate 65a of the earth digging tool 65. It flows to both sides, and the side plates 65b and 65b of the earth digging tool 65 are also heated. When forming the seedling transplanting hole A, the multi-film M is melted by contacting the heated earth digging tool 65 in this manner, and the multi-film M also has a hole B having the same dimensions as the seedling transplanting hole A.
Is formed.

Since the flame flowing before and after the earth digging tool 65 is blocked by the scraper 77 and the heating plate 75 and does not reach the top soil surface of the ridge, the flame does not directly melt the multi-film M. Therefore, when the earth digging tool 65 is up, the multi-film M is kept as it is,
A hole is made in the multi-film M only when 5 comes down.

A part of the melted multi-film M becomes scum K and adheres to the front surface of the earth digging tool 65. This residue K
Is scraped off by the scraper 77 when the earth digging tool 65 moves upward. Since the contact portion 77a of the scraper 77 with the earth digging tool 65 is formed at an acute angle, the scrap K is effectively removed from the earth digging tool 65. Further, since the front and rear widths of the scraper 77 are narrow, the scraps K that have been separated do not adhere to the scraper 77 itself.

The pressure-reducing device 36 is provided with a pressure-reducing wheel support frame 80 rotatably up and down on the planting portion frame, and diagonally lowers the pressure-reducing wheels 81, 81 on the pressure-reducing wheel support frame such that the lower the distance between them, the smaller the distance between them. and Attach to. As the fuselage advances, the crushing wheels 81, 81 roll on the surface of the ridge, and crush the soil while moving the left and right soil of the transplanted seedlings inward.

[0027] The walk-vegetable transplanter 1, which can cope with planting multi coated with conventional open field planted Mull Chifu Irumu are also the following configuration is employed in order to enable it.

That is, as described above, the planting portion 3 is rotatably connected to the frame on the side of the planting portion frame running portion by the connecting shaft 40 so that the entire planting portion 3 swings up and down about the connecting shaft 40 as a fulcrum. It is possible. A suspension spring 83 is provided between the support rod 82 projecting from the control section frame 19 toward the center and the planting section frame 39, and the planting section frame 39 and the compression wheel supporting frame 80 are provided.
And a compression spring 84 is provided between them. Also,
A connecting member 85 (see FIG. 6) is provided, which can be appropriately switched between a state in which the plate-shaped frame 39 is connected to the compression wheel supporting frame 80 and a state in which the plate-shaped frame 39 is connected to the control section frame 19. One end 85 of the connecting member 85
a is rotatably connected to a spring mounting member 86 of the plate-shaped frame 39 by a pin 87.
Is selectively coupled to the spring mounting member 88 of the compression wheel supporting frame 80 and the spring mounting member 89 of the support rod 82 by bolts or the like.

When performing open field planting, the connecting member 85 is connected between the plate-shaped frame 39 and the control unit frame 19 (indicated by a chain line in FIG. 1). In this state, the planting section 3
Does not swing with respect to the traveling section 2,
1 and 81 are elastically urged downward by a compression spring 84.

When multi-planting is performed, the connecting member 85 is connected between the plate-shaped frame 39 and the compression wheel supporting frame 80 (indicated by a solid line in FIG. 1). In this state, the planting section 3 can swing with respect to the traveling section 2, and the pressure-reducing wheels 81, 81 are fixed to the planting section body. In the case of multi-planting, wheel 1 on embankment to hold multi-film
Since the running unit body often swings back and forth or up and down as 0, 10, 17, and 17 ride on, the planting section 3
By following the topsoil surface of the ridge, the planting depth is stabilized. The planting portion 3 is suspended and supported on the traveling portion 2 by a suspension spring 83 at an appropriate ratio, and is supported by pressure-reducing wheels 81, 81.

[0031]

As described above, according to the present invention, vegetable transplanter according to the present invention, by forming a hole or grooves for seedling transplantation while a hole in the multi-film by soil digging tool has been heated by the flame of the burner Can be. In this case, it is described in claim 1.
According to the above-mentioned invention, fire is radiated from above and earth digging tools are used.
Guide plate that guides the flow of the flame of the burner to be heated to the digging tool side
Is provided to heat the digging tool effectively.
Can be. According to the second aspect of the present invention,
Blocks the flow of the flame of the burner that heats the digging tool to the topsoil side
The flame is directly
Problems such as melting the film when hitting the film
Absent.

[Brief description of the drawings]

FIG. 1 is a side view of a walking type vegetable transplanter according to one embodiment of the present invention.

FIG. 2 is a rear view of the walking vegetable transplanter shown in FIG.

FIG. 3 is a side view of the earth mining apparatus.

FIG. 4 is a rear view of the earth digging device.

FIG. 5 is a bottom view of the earth mining apparatus.

FIG. 6 is a perspective view of a connecting member.

[Explanation of symbols]

1 walk-vegetable transplanter 2 travel section 3 planting platform 10 front 17 rear wheel 33 seedling mounting table 34 the planting device 35 soil digging device 65 soil digging implement 70 burners 77 Scraper

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-68439 (JP, A) JP-A-5-328861 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01G 13/00 302 A01C 5/04 A01C 11/00-11/02 303

Claims (2)

(57) [Claims] At least a portion thereof is intermittently moved up and down to be inserted in the soil, the soil digging tool for forming a hole or groove for transplanting seedlings in the field plane when positioned in claim 1] lower, upper A bar that radiates a flame from it and heats the digger
And a guide plate for guiding the flow of the flame of the burner to the earth digging tool side . (2) At least part of it when it is lower
Field moves up and down intermittently so that
Digger to form a hole or groove for transplanting seedlings to
And a bar that emits a flame from above and heats the digging tool
And play to block the flow of the flame of the burner to the topsoil side
And a vegetable transplanter comprising: