JPH119026A - Scraper device of transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject device having a simplified structure, and capable of preventing the cost up, being installed in a small space and improving operability by installing a soil-scraping body sliding upper and lower at the tip part of a bar while keeping contact with the front outside surface of an opener. SOLUTION: This scraping device has a bar 87 installed in a swinging ring 56 swinging so as to draw a nearly oblong ellipse locus in the upper and lower direction, swinging in the front and rear direction according to the movement of the ring 56, and installed so as to extend in the lower direction, and a soil- scraping body 89 installed at the tip part of the bar 87 so as to slide upper and lower direction while keeping contact with the front outside surface of an opener 58. Further, the scraping device preferably has a spring 88 for urging the soil-scraping body 89 to the front outside surface of the opener 58 installed therein, and a pin installed for extending the spring preferably also serves as a stopper for restricting the swing of the bar 87 in the rear direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scraper device for a transplanter for planting soil-grown seedlings of vegetables such as cabbage and lettuce in ridges.

[0002]

2. Description of the Related Art A transplanting machine of this type is provided with a planting tube for planting seedlings, which can be moved up and down. The planting tube has a pair of front and rear openers whose lower part is tapered and which can be opened and closed. Supplies the seedlings inside the planting cylinder at the top, pierces the opener into the ridges while descending, forms a planting hole, and opens the opener while rising, so that the seedlings are planted in the planting hole. I have to.

[0003] As the above-mentioned planting cylinder is planted, soil of seedlings may adhere to the inner wall surface of the opener and ridge soil when pierced may adhere to the outer wall surface of the opener. If soil remains attached to the inner wall surface of the planting cylinder in this way, the posture of the seedlings at the time of planting will be disrupted, and the attached soil will resist the fall of the seedlings, hindering smooth seedling transplantation. ,
If soil remains attached to the outer wall surface of the opener, the attached soil may form a large planting hole, which may disturb the planting posture of the seedlings.

In order to solve the above-mentioned problem, there is an apparatus disclosed in Japanese Patent Laid-Open Publication No. Hei 8-56430, in which an inner and outer scraper is provided on an operating arm which swings back and forth by the ascending operation of the planting tube. An opening is formed in the upper part of the rear opener, and the inner scraper enters the inside from the opening through the swing of the operating arm by the ascending operation of the planting tube, thereby removing soil adhering to the inner surface of the opener. After peeling, the outer scraper is pressed against the rear surface of the rear opener to release the adhered soil, and the inner scraper is pulled out from below the planting tube.

[0005]

However, in the scraper device of the prior art transplanter described above, the soil adhered to the outer surface of the front opener cannot be peeled off, and the planted hole is largely formed by the adhered soil. There is a risk that the planting posture will be lost. Therefore, it is conceivable to provide a scraper device as in the prior art described above in front of the planting tube to peel off the soil attached to the front opener, but this scraper device has a complicated structure having an operating arm and the like. In addition, a large perforated space is required because the operating arm swings back and forth, and in particular, a perforation device that perforates the planting hole in the multi-film laid on the ridge in front of the planting tube is provided. In such a case, it is difficult to secure a wide space for providing a scraper device between the drilling device and the planting cylinder.

Accordingly, the present invention provides a scraper member (consisting of a bar and a dropping body) by utilizing a swinging link that moves so as to draw a vertically long substantially elliptical locus in the vertical direction. An object of the present invention is to provide a scraper device that can be provided in a narrow space while simplifying the structure and preventing an increase in cost.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a planting tube having an openable and closable opener (58) on a swinging link (56) that moves so as to draw a vertically long substantially elliptical locus (K) in the vertical direction. (35), wherein the transplanter transplants the soil seedling (28) contained in the planting cylinder (35) by opening and closing the opener (58) into the ridge (14). The following technical measures have been taken to achieve the above objectives.

That is, in the scraper device according to the present invention, the swing link (56) is provided with a rod (87) swinging in the front-rear direction by the movement of the link (56), extending downward. A dropping object (89) that slides in the vertical direction by contacting the front outer surface of the opener (58) at the tip of the bar (87).
Is provided. By adopting such a configuration, the scraper member composed of the bar (87) and the earth removal body (89) can move in such a manner that the swing link (K) moves so as to draw a vertically long substantially elliptical locus (K) in the vertical direction. 56), it is possible to simplify the structure and prevent an increase in cost without adding a complicated interlocking mechanism or the like.

Further, the scraper device according to the present invention is provided with a spring (88) for urging the sloping body (89) in a direction of contacting the front outer surface of the opener (58), and the spring (88) is provided. The pin (86C) to be stretched is also used as a stopper for restricting the swinging of the bar (87) in the backward direction. Operate front opener (58
The soil attached to the outer surface of F) can be scraped off easily and reliably, so that the planting performance can be maintained and the hole drilled by the opener (58) can be reduced to the required minimum size. The fall of the attached seedlings (28) can be reduced.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 7, the vegetable transplanter 11
A walking type having a steering handle 13 at the rear of the traveling vehicle 12, while running in the longitudinal direction across the ridges 14,
The seedlings 28 are planted at predetermined intervals on the ridges 14 covered with the multi-film.

The traveling vehicle 12 has a gantry 16 at the front,
An engine 17 is mounted on the gantry 16, and the engine 17 is covered with a hood 18. A transmission case 19 to which power is transmitted from the engine 17 is fixed to a rear portion of the gantry 16. A front portion of a main frame 15 formed of a square pipe or the like is fixed to a rear portion, and the steering handle 13 extending obliquely upward and rearward is provided at a rear portion of the main frame 15.

The power from inside the transmission case 19 is supplied to a wheel transmission shaft 20 projecting to the left and right sides and to the wheel transmission shaft 2.
The first PT provided rearward from the left side and protruding left and right.
An O-shaft 21 and a second PTO shaft 22 projecting rearward and upward are taken out by three systems. Left and right driving wheels (rear wheels) 24 are supported on the left and right ends of the wheel transmission shaft 20 via a transmission case 23 that swings up and down around the axis, and are driven by a wrapping transmission 25 in the transmission case 23. The wheels 24 can be driven. This drive wheel 24 rolls in the groove between the ridges 14. Also, a pair of left and right front wheels 2 is provided at the front of the traveling vehicle 12.
6. A ridge height detection roller 27 is provided.

[0013] At the rear of the traveling vehicle 12, a transplanting work section 29 is provided.
Is provided. The transplanting operation unit 29 includes a seedling supply device 30 and a soil seedling 28 supplied from the seedling supply device 30.
Planting device 31 for planting on the ridge 14 by the planting cylinder 35
And a multi-film M in advance at a position where the seedling 28 is to be planted.
And a multi-film punching device 32 for punching a planting hole. The seedling supply device 30 is driven by the rotational power of the second PTO shaft 22, and the planting device 31 and the multi-perforation device 32
Are driven by the rotational power of the first PTO shaft 21.

The seedling supply device 30 is mounted on the main frame 15 and has a pot portion 33a where the soild seedling 28 is raised.
While transferring the seedling trays 33 arranged in a large number of rows and columns in the horizontal and vertical directions, the planting device 31
At the predetermined seedling removal position, the seedlings 28 are taken out one by one by the seedling removal claw 34, and the soild seedlings 28 are transported above the planting device 31 and then dropped into the planting cylinder 35 for mounting. To enter. The seedling tray 33 is made of resin and has flexibility, and a large number of pot portions 33a are arranged vertically and horizontally.
Are provided protruding from the rear surface, and seedlings 28 are raised in each pot portion 33a.

A transmission shaft 37 connected to the second PTO shaft 22 is connected to a power receiving shaft 36 of the seedling supply device 30 via a universal joint.
The above operation is repeated by the power from. As shown in FIGS. 5 and 6, the planting device 31 and the multi-film punching device 32 are provided with the first PT of the transmission case 19.
An apparatus frame 38 supported on the O-shaft 21 so as to be vertically swingable.
Provided above. The device frame 38 is formed in a rectangular frame shape, and a drive shaft 41 is rotatably supported by left and right bearings 40 fixed at an upper portion in the middle of the front and rear directions. A sprocket 42 is provided at the left end of the drive shaft 41, and a transmission chain 44 is wound around the sprocket 42 and a sprocket 43 provided at the left end of the first PTO shaft 21 to drive the rotational power of the engine 17. It constitutes chain transmission means for transmitting to the shaft 41. 45 is a chain case.

The rear of the device frame 38 is
A soil covering roller 46 is provided, and the rear end of the device frame 38 is connected to the main frame 1 via a ridge follower (not shown).
5 and follows the height of the ridges 14 so that the first PT
The apparatus frame 38 can swing up and down with the O-axis 21 as a fulcrum. The multi-film punching device 32 includes:
An electrothermal or gas flame type perforating means 47 is provided. The perforating means 47 is connected to the apparatus frame 38 via a parallel link 48 so as to be vertically movable. A cam roller 50 is pivotally attached to the upper link 48a of the parallel link 48. The cam roller 50 is adapted to roll on the outer periphery of a disc-shaped flat cam 51 provided on the drive shaft 41. The cam roller 50 is driven by its own weight of the perforating means 47 or by urging means such as a tension spring.
The cam roller 50 is urged in a direction of pressing the cam roller 50 against the outer periphery of the cam 51.

A concave portion is formed in a part of the cam 51 in the circumferential direction. When the cam roller 50 falls into the concave portion, the perforating means 47 moves downward, and the heating means provided at the lower end of the perforating means 47 is provided. By pressing the body 52 against the multi-film M, a planting hole is formed in the multi-film M. Further, the cam 51 is formed so as to raise the perforating means 47 immediately after perforating the multi-film M, and the other parts except the recess hold the perforating means 47 at the standby position of the ascending limit. To this end, the drive shaft 41 is formed in an outer peripheral shape having a substantially constant distance from the axis.

The planting device 31 includes a planting cylinder 35 which is pierced and moved with respect to the ridge 14 so as to plant the seedlings 28 supplied from the seedling supply device 30 on the ridge 14 at predetermined intervals. A swing link mechanism 53 for vertically moving the cylinder 35 up and down and moving it back and forth is mainly constituted. Swing link mechanism 53
Is provided with a first parallel link 54 whose upper end is pivotally supported by the device frame 38 so that the lower end can freely swing back and forth. A swing plate 55 is pivotally connected to the lower end of the first parallel link 54, A second parallel link (swing link) including an upper link 56a and a lower link 56b on the swing plate 55.
The front end of the pivot 56 is pivotally connected, and the planting cylinder 35 is pivotally connected to the rear end of the swing link 56. The distal end of a crank arm 57 provided on the drive shaft 41 is pivotally connected to the upper link 56a of the swing link 56.

Therefore, the rotation of the crank arm 57 via the drive shaft 41 by the power from the first PTO shaft 21 causes the first and second parallel links 54 and the swing link 56 to move the planting cylinder 35 up and down. It moves forward and backward while moving up and down, and moves so as to draw a substantially clockwise elliptical locus K in a side view in FIG.
When the opener 58 is pierced into the ridge 14, the planting cylinder 35 does not substantially move forward with respect to the field.

As shown also in FIGS.
The upper part thereof is a cylindrical part 35a having an opening in a rectangular shape in a plan view, and a pair of front and rear openers 58 which can be freely opened and closed in the front and rear direction with a mounting pin 59a as a fulcrum is provided below the cylindrical part 35a. The front and rear openers 58F and 58R are provided with open / close links 5
In the operation of No. 9, opening and closing can be performed by the refraction link pin 60.

The front and rear openers 58F and 58R are
At the bottom dead center of the locus of the planting cylinder 35, the ridge 14 is inserted into the ridge 14 in a closed state to form a planting hole in the ridge 14. 61
And open and back by the action of the refraction link pin 60,
The soild seedling 28 can be dropped and planted in the formed planting hole.

The front and rear openers 58F and 58R are urged by a tension spring 62 so as to always close when the opening / closing tool 61 is not operating.
The opening and closing link 59 of F, 58R is provided with a stopper bolt 63 for limiting the opening degree of the opener 58. The opening / closing member 61 has a first link member 80 whose front end is pivotally supported by the apparatus frame 38 so as to be able to swing up and down around a horizontal axis.
The front end is connected to the rear end of the first link member 80 via a connecting shaft 81 in the left-right direction so as to be swingable up and down, and the rear end is connected to the front opener 58F so as to be swingable up and down around the left-right axis. And two link members 82. As shown in FIGS. 5 and 6, the first and second link members 80 and 82 are provided below the second parallel link 56 of the swing link mechanism 53.
Are provided in the front-rear direction substantially along the left side of the.

When the planting tube 35 moves up and down, the opening / closing member 61 swings up and down in conjunction with the vertical movement of the planting tube 35, and moves upward while moving backward from the state where the planting tube 35 pierces the ridge 14. Further, the front opener 58F is pulled forward by the interlocking tool 61 and swings forward about the mounting pin 59a as a fulcrum, and the rear opener 58R also swings rearward via the mounting pin 59a via the link pin 60, thereby Opener 58F, 5
8R is opened. Reference numeral 80a denotes a stopper pin that regulates the swing amount of the second link member 82 with respect to the first link member 80.

Further, the transplanting cylinder 35 shifts to the forward movement from the latter half of the ascending process by the swinging link mechanism 53, and the first movement causes the first link member 80 and the second link member 82 to move through the connecting shaft 81. The front opener 58F is bent to release the tension action of the front opener 58F, and the front and rear openers 5
8F and 58R are closed. The second link member 82 is
It is formed of two members having a nested structure, is expandable and contractible, is urged in a contracting direction by a tension spring 83, and even if the front and rear openers 58F and 58R reach the opening limit by the stopper bolt 63, the planting cylinder 35 is still in place. It is designed to extend when it moves backward.

The front and rear openers 58F, 58R
Are provided so as to swing on the cylindrical portion 35a via the attachment pin 59a, and both the front and rear links 58F and 58R are opened via the link pin 60.
The rear opener 58R is fixed to the tube portion 35a of the planting tube 35,
Only the front opener 58F may be swung open.

A front scraper device 85 according to the present invention is provided in front of the planting cylinder 35, and a rear scraper device 65 is provided in the rear.
Are provided respectively. The front scraper device 85
A front operating arm 86 pivotally supported by the upper link 56a of the swing link 56 in front of the planting cylinder 35.
And a bar 87 fixed to the rear end of the front operating arm 86 and extending downward, and a dropper fixed to the tip of the bar 87 and slidable on the front outer wall surface of the front opener 58F. It consists of a body 89.

The operating arm 86 is pivotally attached to the link 56a by a pin 86a so as to be able to swing back and forth, and has a pin 86b on the front side of the arm 86.
The lower link 56b also has a pin 86c, and a coil spring 88 is stretched on the front and rear pins 86b and 86c to urge the operating arm 86 rearward about the fulcrum pin 86a. The dropping body 89 provided at the tip of the bar 87 is urged so as to contact the outer surface of the front opener 58F, and also serves as a stopper for restricting the bar 87 from swinging backward by the rear pin 86c.

Referring to FIG. 8 to FIG.
6 has a substantially triangular shape, has a boss cylinder 186a for a fulcrum pin 86a at one of its apexes, protrudes a pin 86b at a front apex, fixes a bar 87 to the other apex, and extends downward, An arc-shaped dropping body 89 made of an elastic material is attached to the extension end via a content bending plate 89A. The swing link 56 moves the planting cylinder 35 so as to draw a vertically elongated substantially elliptical locus K in the vertical direction, and by using such a movement, the upper link 56a is pivotally supported by the pin 86a. By swinging the arm 86 in the front-rear direction, the dropping body 89 mounted via the bar 87 moves relative to the planting cylinder 35, and can be in sliding contact with the front opener 58F to remove the attached soil.

The front outer scraper 89 is moved below the front opener 58F once after removing the adhered soil, and is again moved above the front opener 58F when the front and rear openers 58F and 58R pierce the ridge 14 and open. Move to (Figure 3)
reference). Then, in the process of raising the planting tube 35, the front outer scraper 87 is raised together with the planting tube 35 while maintaining the position above the front opener 58F.

Therefore, when the transplanting cylinder 35 is at the raised position, the front outer scraper 87 is at the lowered position (see FIG. 1).
When the planting cylinder 35 pierces the ridge 14, the front outer scraper 87 moves upward.
7 does not hinder the lowering operation of the piercing of the openers 58F and 58R, and can be lowered together with the planting cylinder 35 to scrape off the attached soil only when necessary.

When the planting cylinder 35 is inserted into the ridge 14 and the seedlings 28 are planted and moved upward by the swing link mechanism 53, the rear scraper device 65 moves the opener 58F,
The soil attached to the rear outer and inner wall surfaces of the 58R is scraped off, and the upper portion is pivotally supported by a support member 66 projecting upward at the rear of the device frame 38 via a pin 67 so as to be able to swing back and forth. Rear operating arm 68, and rear inner and outer scrapers 69, 70, which protrude inward in the left-right direction from the lower portion of the rear operating arm 68 and are arranged behind the planting cylinder 35, Guide means 71 for guiding the scraping operation of the rear outer scrapers 69 and 70 is provided.

A notch-shaped opening 64 is formed in an upper portion on one side of the rear opener 58R so that the inner scraper 69 can enter and pass therethrough. Guide means 71
Is a guided portion 72 provided on the rear operating arm 68, and a guiding portion 73A fixed to the side surface of the cylindrical portion 35a of the planting cylinder 35,
73B and the like. The rear operating arm 68 is provided with the pin 67 at its upper end, the guided portion 72 formed of a roller or the like at an intermediate portion, and a rear outer scraper 70 at a lower portion of the rear operating arm 68. An inner scraper 69 is arranged between the scraper 70 and the guided portion 72.

The rear operating arm 68 is urged rearward by a tension spring 76 between the rear operating arm 68 and the device frame 38, and the rear operating arm 68 restricts the rear urging position of the rear operating arm 68 by the device frame 38. A stopper 77 is provided. The guide portions 73A and 73B of the guide means 71 are a plate material formed in a substantially rectangular shape in side view and a straight plate material opposed thereto, and when the planting cylinder 35 moves backward while rising from the bottom dead center, Engaging with the guided portion 72 of the operating arm 68, the operating arm 68 is pulled forward against the tension spring 76, and the operating arm 68 is moved to the planting tube 35 in conjunction with the upward movement of the planting tube 35. Swing in the direction approaching from behind.

The rear operating arm 68 is guided by the guide means 71 so that the inner scraper 69 opens the opening 64.
Through the rear opener 58F, 58R, the rear outer scraper 70 is disposed on the rear surface of the rear opener 58R, and with the subsequent rise of the planting cylinder 35, the rear outer scraper 70 precedes the rear opener 58R. The soil adhering to the rear surface was peeled off, and the inner scraper 69 was subsequently moved by the front and rear openers 5.
The soil adhered by sliding contact with the inner surface of 8F, 58R is peeled off.

Of the front scraper device 85 and the rear scraper device 65, the rear outer and front outer scrapers 69, 70, 8
Reference numeral 9 denotes a blade formed of an elastically deformable material such as rubber, resin, or the like, which covers a flat support piece, and which extends through a mounting shaft portion and a nut integrated with the support piece and a rear end of the extension rod 88 and It is fixed to the operation arm 68. Therefore, even if the distance between the inner and outer scrapers 69, 70, 89 and the front and rear openers 58 is not accurate, the soil can be surely peeled off by pressing the inner and outer surfaces of the front and rear openers 58F, 58R while being elastically deformed.

The inner and outer scrapers 69, 70, 89
Embeds one or more sheets of fiber cloth (canvas) such as cotton, nylon, polyester, etc., and a plurality of reinforcing members such as steel or fiber cords, steel or fiber belts, to increase rigidity. In addition, damage such as cracking due to excessive bending or the like is prevented, and durability is improved. Inner scraper 69
The front and rear ends are formed in an arc shape substantially along the inner wall surface of the planting tube 35, and the rear end of the front outer scraper 89 and the front end of the rear outer scraper 70 are connected to the front outer wall surface and the rear outer surface of the planting tube 35. It is formed in an arcuate concave shape substantially along the wall surface.

In the above embodiment, the transplanter 11 is shown as a walking type, but may be a riding type or a tractor traction type.

[0038]

As described above in detail, according to the present invention, the soil attached to the opener can be separated by utilizing the swing of a vertically long substantially elliptical trajectory in the vertical direction of the swing link. Simplification and prevention of cost increase are achieved, and even when a multi-film punching device is provided in front of the planting tube, the scraper device can be provided in a narrow space without obstructing the operation of the device. .

[Brief description of the drawings]

FIG. 1 is a side view of a front scraper device according to an embodiment of the present invention before operation.

FIG. 2 is a side view of the scraper device during operation.

FIG. 3 is a side view showing a state at the time of planting seedlings.

FIG. 4 is a side view during operation of the rear scraper device.

FIG. 5 is a side view showing a main part of the transplanter.

FIG. 6 is a plan view showing a main part of the transplanter.

FIG. 7 is a schematic side view showing the entire transplanter.

FIG. 8 is a side view of the front scraper member.

FIG. 9 is a plan view of a front scraper member.

FIG. 10 is a plan view of the shovel.

[Explanation of symbols]

 11 Transplanter 28 Soiled Seedling 35 Planting Cylinder 56 Swing Link 58F Front Opener 58R Rear Opener 86 Actuating Arm 87 Bar Material 89 Dropping Body

Claims (2)

[Claims] 1. A planting cylinder (35) having an openable and closable opener (58) is mounted on a swinging link (56) that moves so as to draw a vertically long substantially elliptical locus (K) in the vertical direction. In the transplanting machine for transplanting the soiled seedling (28) stored in the planting cylinder (35) by the opener (58) entering the ridge (14) and opening and closing, the swinging link (56) A bar (87) swinging in the front-rear direction by the movement of the link (56) is provided extending downward, and a tip of the bar (87) is brought into contact with the front outer surface of the opener (58) to move up and down. A scraper device for an implanting machine, comprising a dropping body (89) that slides in a direction. 2. A spring (88) for urging the earth removal body (89) in a direction of contacting the front outer surface of the opener (58).
And a pin (86) for extending the spring (88).
C) The scraper device of the transplanter, wherein C) is also used as a stopper for restricting the swing of the bar (87) in the backward direction.