JPH1042636A - Scraping device of transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a scraping device of a transplanter capable of scraping a soil attached to the front surface of a planting cylinder and thereby planting the seedling well by installing not only an inner scraper and a rear outer scraper but also a front outer scraper for scraping the soil attached to the front surface of a front opener. SOLUTION: This scraping device of a transplanter has openable front and rear openers under a cylinder part 35a of a planting cylinder 35 for planting a seedling with soil, front and rear openings formed at the upper one side of the front and rear openers and a swingable operating arm 68 supported by a device frame and approaching to the planting cylinder 35 from the rear side linked with the lifting operation of the planting cylinder 35. Further, a front outer scraper 70F arranged through the front and rear openings on the front surface of the front opener 58F, an inner scraper 69 arranged through the rear opening 64R in the front and rear openers and a rear outer scraper 70R arranged on the rear surface of the rear opener 58R are installed in the operating arm 68 and the each scraper 69, 70F or 70R is contactually slid on the corresponding surface of the front and rear openers 58 to scrape the added soil.

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. Supply the seedlings inside the planting cylinder at the top, pierce the opener into the ridges while descending to form a planting hole, and open the opener while ascending to plant the seedlings inside 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, Japanese Patent Laid-Open Publication No. Hei 8-56430 discloses a method in which an inner and outer scraper is provided on an operating arm which swings by a raising operation of a transplanting tube, and a rear opener is provided. An opening is formed in the upper part of the opening, and the inner scraper is made to enter the inside from the opening through the swing of the operating arm by the ascending operation of the planting tube, and the soil adhering to the inner surface of the opener is peeled off. Then, the outer scraper is pressed against the rear surface of the rear opener to remove the adhered soil, and the inner scraper is pulled out from below the planting cylinder.

[0005]

However, in the scraper device of the prior art transplanter described above, the outer scraper can only peel off the soil adhered on the rear surface of the rear opener, and the outer scraper peeling off the soil adhered on the front surface of the front opener has a problem. Not provided. For this reason, there is a fear that the planting hole is formed large by the attached soil on the front surface of the front opener, and the planting posture of the seedling is lost.

Accordingly, the present invention provides not only an inner scraper and an outer scraper for a rear opener, but also a front outer scraper for peeling off the adhered soil on the front surface of the front opener.
It is an object of the present invention to provide a scraper device of a transplanting machine that can scrape off the soil attached to the front surface of a planting cylinder and perform good planting. Also, the present invention arranges the inner scraper higher than the rear outer scraper, and arranges the front and outer scrapers at substantially the same height as the inner scraper so that all the scrapers can be surely slidably in contact with the inner and outer surfaces of the front and rear openers. It is an object of the present invention to provide a scraper device for an implanting machine.

[0007]

A first concrete means for solving the problems in the present invention is to provide a planting tube 35 for planting seeded seedlings 28 on an apparatus frame 38 so as to be able to move up and down. The front and rear openers 58F and 58R which can be opened and closed are provided at the lower part of the 35 cylindrical portion 35a.
Front and rear openings 64F, 64R are formed on one upper side of 8R,
The device frame 38 supports an operating arm 68 that swings in a direction approaching from the rear to the planting tube 35 in conjunction with the ascending operation of the planting tube 35, and the front and rear openings 64F, 64R are mounted on the operating arm 68. The front and outside scrapers 70F are disposed on the front surface of the front opener 58F, the inner scrapers 69 are disposed in the front and rear openers 58F and 58R through the rear opening 64R, and the rear and outside are disposed on the rear surface of the rear opener 58R. A scraper 70R is provided, and the scrapers 69, 70F, 70R are brought into sliding contact with the inner and outer surfaces of the front and rear openers 58F, 58R with the rise of the seeding tube 35, so that the adhered soil can be removed. .

Accordingly, the front and rear openers 58F, 58
The soil attached to the front surface of the front opener 58F as well as the inner surface of the R and the rear surface of the rear opener 58R is peeled off, and the soild seedling 28 is removed.
Improve planting. The second specific means for solving the problem in the present invention is that, in addition to the first specific means, the upper part of the operating arm 68 is pivotally supported on the device frame 38, and the lower part of the operating arm 68 is bifurcated. The inner scraper 69 is formed at the branch portion, and the front outer scraper 70F is formed at the front branch portion.
The rear outer scraper 70R is arranged on the rear branch, respectively,
The inner scraper 69 is arranged higher than the rear outer scraper 70R, and the front outer scraper 70F is arranged at substantially the same height as the inner scraper 69.

Thus, all the scrapers 69, 70
F and 70R can be reliably brought into sliding contact with the inner and outer surfaces of the front and rear openers 58F and 58R.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 2 and 6, the vegetable transplanter 11
Is a walking type having a steering handle 13 at the rear part of the traveling vehicle 12, and runs at predetermined intervals on the ridge 14 covered with the multi-film M while running in the longitudinal direction across the ridge 14. Plant.

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 a rear portion of the main frame 15 is bent upward to form a steering handle 13.

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. The planting device 31 and the multi-film punching device 32 are provided on a device frame 38 that is supported on the first PTO shaft 21 of the transmission case 19 so as to be vertically swingable. 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 so that the apparatus frame 38 can swing up and down according to the height of the ridges 14. The multi-film perforating apparatus 32 includes an electrothermal or gas flame type perforating means 47, and 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 attached to the upper link 48a of the parallel link 48.
Is pivoted. The cam roller 50 has a drive shaft 41
The cam roller 50 is pressed against the outer periphery of the cam 51 by the own weight of the perforating means 47 or by urging means such as a tension spring. It is energizing.

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, The front end of the second parallel link 56 is pivotally connected to the swing plate 55, and the planting cylinder 35 is pivotally connected to the rear end of the second parallel 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 second parallel link 56.

Therefore, the crank arm 57 is rotated by the power from the first PTO shaft 21 via the drive shaft 41, so that the first and second parallel links 54 and 56 move the planting cylinder 35 up and down and back and forth. , So as to draw a substantially elliptical trajectory K. When the planting tube 35 is pierced into the ridge 14 while traveling, the planting tube 35 does not move substantially forward with respect to the field. Has become.

In FIGS. 1 to 5, the planting cylinder 35 has a tubular portion 35a having an opening having a rectangular shape in a plan view, and a lower portion of the tubular portion 35a is provided with a mounting pin 59a as a fulcrum. A pair of front and rear openers 58F and 58R that can be freely opened and closed is provided. Both openers 58F and 58R can be opened and closed by a refraction link pin 60 by the operation of the opening and closing link 59.

The openers 58F and 58R enter the ridge 14 in a closed state at the bottom dead center of the locus of the planting cylinder 35 to form a planting hole in the ridge 14. At the same time, the front opener 58F
The linking tool 61 pivotally connected to the device frame 38 and the bending link pin 60 allow the soiled seedling 28 to drop and plant in the planting hole formed.

The front and rear openers 58F and 58R are urged by a tension spring 62 so as to always close when the interlocking 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. A notch-shaped front and rear opening 6 that allows an inner scraper 69 and a front outer scraper 70F of a scraper device 65 to be described later to enter and pass is provided at an upper portion on one side of each of the front and rear openers 58F and 58R.
4F and 64R are formed.

At the rear side of the planting cylinder 35, a scraper device 6
5 are provided, and adhere to the front and rear outer and inner wall surfaces of the openers 58F and 58R when the planting cylinder 35 is inserted into the ridge 14 to plant the seedlings 28 and is moved upward by the swinging link mechanism 53. The scraped soil is scraped off. The scraper device 65 includes an operating arm 68 whose upper portion is pivotally supported by a support member 66 projecting upward from a rear portion of the device frame 34 via a pin 67 so as to be swingable back and forth. Inner and outer scrapers 69, 70F, and 70R, which protrude to the side and are arranged behind the planting cylinder 35, and inner and outer scrapers 6
Guide means 71 for guiding the scraping operation of 9, 70F, 70R.

The guide means 71 has a guided portion 72 provided on the operating arm 68, and guide portions 73A, 73B fixed to the side surface of the tube portion 35a of the planting tube 35. The operating arm 68 is provided with the pin 67 at the upper end thereof, and the guided portion 72 including a roller or the like at an intermediate portion thereof.
The lower portion of the operating arm 68 is formed in a bifurcated fore-and-aft manner, and an inner scraper 69 is provided at a branch portion thereof, and a front outer scraper 7 is provided at a front branch portion.
0F, a rear outer scraper 70R is disposed on the rear branch portion, and the inner scraper 69 is a rear outer scraper 70R.
The upper and lower scrapers 70F are disposed at a higher level than the inner scraper 69.

The operating arm 68 is connected to the device frame 3.
8 is biased rearward by a tension spring 76, and the apparatus frame 38 is provided with a stopper 77 for regulating the rearward biasing position of the operating arm 68.
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, By engaging with the guided portion 72 of the operation arm 68,
The operating arm 68 is pulled forward against the tension spring 76, and the operating arm 68 is swung in a direction approaching the planting tube 35 from behind in conjunction with the upward movement of the planting tube 35.

The operating arm 68 is guided by the guide means 71, so that the front outer scraper 70F is disposed in front of the front opener 58F through the front and rear openings 64F and 64R, and the inner scraper 69 is passed through the rear opening 64R. And placed in the front and rear openers 58F and 58R, and the rear outer scraper 7
0R 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 70R precedes the soil adhering to the rear surface of the rear opener 58R, and then the inner scraper 69R. And the front opener 58F,
Front of front opener 58F and front and rear openers 58F, 58R
Sliding contact with the inner surface of the surface almost simultaneously removes the adhered soil.

All the scrapers 69, 70F, 70R can be arranged at substantially the same height so that the soil can be peeled off almost simultaneously while sandwiching the inner and outer surfaces of the front and rear openers 58F, 58R. It is better to operate the scraper prior to the rear outer scraper 70R.
70F, 70R more reliably front and rear openers 58F, 58
It becomes possible to press on R.

Inner and outer scrapers 69, 70F, 70R
Is a blade formed of an elastically deformable material such as rubber, resin, or the like, covers a flat support piece, and is fixed to the operation arm 68 via a mounting shaft portion and a nut integrated with the support piece. I have. Therefore, the inner and outer scrapers 69, 70F,
Even if the distance between 70R is not accurate, the front and rear openers 58F,
By pressing the inner and outer surfaces of the 58R while being elastically deformed, the soil can be surely peeled off.

The inner and outer scrapers 69, 70F, 7
In the 0R, one or more sheets of fiber cloth (canvas) such as cotton, nylon, polyester, etc., or a plurality of reinforcing members such as steel or fiber cords, steel or fiber belts are embedded therein to increase rigidity. The height is increased to prevent damage such as cracks due to excessive bending and the like, and to improve durability. The inner scraper 69 has front and rear ends formed in an arc shape substantially along the inner wall surface of the planting tube 35, and the rear surface of the front outer scraper 70F and the front surface of the rear outer scraper 70R are connected to the front outer wall surface of the planting tube 35 and It is formed in an arcuate concave shape substantially along the rear outer wall surface.

In the above configuration, the scraping operation will be described. 1 to 3, an arrow A indicates a traveling direction (transplant direction) of the transplanter 11. After the soiled seedling 28 taken out of the seedling tray 33 of the seedling supply device 30 by the seedling take-out claw 34 is dropped from above into the planting cylinder 35 moved to the vicinity of the top dead center by the swing link mechanism 53, and then planted. The attachment cylinder 35 is lowered by the swing link mechanism 53, and pierces the ridge 14 at the bottom dead center to form a planting hole (see FIG. 2). Then, the operation of the interlock 61 causes the opener 5 to move.
8 is opened and the seedling 28 is planted in the planting hole.

After the seedlings 28 have been planted, the planting tube 35 is raised slightly rearward by the swinging link mechanism 53, and the guide portions 73A, 73 of the scraper device 65 provided on the planting tube 35.
3B is engaged with the guided portion 72 provided on the operation arm 68. Then, when the planting cylinder 35 further rises, the guide portion 73
The guided portion 72 rolls on the upper side, and the operation arm 68 swings forward against the tension spring 76 and is drawn.

Then, the front outer scraper 70F is moved to the opening 6
4F and 64R, and moves from the rear side to the front side of the openers 58F and 58R. At the same time, the inner scraper 69 moves to the inside through the openings 64R of the openers 58F and 58R, and the rear outer scraper 70R moves to the rear opener. Contact the rear surface of 58R. From this state, planting cylinder 3
5 rises, the rear outer scraper 70R moves the rear opener 5
8R scrapes off the adhering soil on the rear surface and then the inner scraper 6
9 enters the openers 58F and 58R to start scraping the inner surface, and almost simultaneously with the scraper 70F.
Starts to scrape off the attached soil on the front surface of the front opener 58F (see FIG. 1).

In this state, the inner and outer scrapers 69 and 70 move downward, as opposed to the rise of the planting cylinder 35,
The soil adhering to the inner and outer surfaces of the opener 58 is scraped down and exits from the lower portion of the opener 58 as shown in FIG. Every time one seedling 28 is planted, the attached soil can be removed by the scraper device 65, so that the soild seedling 28 can always be held in an upright posture without falling in the planting cylinder 35 and the planting hole. .

After the attached soil is dropped by the scraper device 65, the inner scraper portion 69 is pulled out of the seeding tube 35 by the rise of the seeding tube 35, and the operating arm 68 is again moved backward by the tension spring 76. Pulled back to stopper 7
7, the planting cylinder 35 closes the opener 58 near the top dead center, the seedling 28 is again supplied from the seedling supply device 30, and the above operation is repeated.

The present invention is not limited to the above embodiment, but can be variously modified. For example, although the transplanter 11 is shown as a walking type, it may be a riding type or a tractor-traction type.

[0036]

As described above in detail, according to the present invention, the rear opening 64 is formed at one upper side of the front and rear openers 58F and 58R.
R as well as the front opening 64F, and the operating arm 68
In addition to the inner scraper 69 and rear opener 58R,
The front opener 58 passes through the front and rear openings 64F and 64R.
Since the front outer scraper 70F disposed on the front surface of the front opener 58F is also provided, not only the inner surfaces of the front and rear openers 58F and 58R and the rear surface of the rear opener 58R but also the soil attached to the front surface of the front opener 58F can be peeled off. The planting of the soild seedling 28 can be further improved.

The lower part of the operating arm 68 is formed in a bifurcated front and rear shape, and the inner scraper 69 is provided at the branch portion, the front outer scraper 70F is provided at the front branch portion, and the rear outer scraper 70F is provided at the rear branch portion.
R are arranged, the inner scraper 69 is arranged higher than the rear outer scraper 70R, and the front outer scraper 70F is arranged at substantially the same height as the inner scraper 69, so that all the scrapers 69, 70F, 70R can be mounted. It can be made simple and all the scrapers 69, 70F, 70R can be reliably brought into sliding contact with the inner and outer surfaces of the front and rear openers 58F, 58R.

[Brief description of the drawings]

FIG. 1 is a side view of a scraper device showing an embodiment of the present invention.

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

FIG. 3 is a side view of the scraper device during operation.

FIG. 4 is a side view showing a main part of the transplanter.

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

FIG. 6 is a schematic side view showing the entire transplanter.

[Explanation of symbols]

 11 Transplanter 28 Soiled Seedling 35 Planting Tube 35a Tube 58F Front Opener 58R Rear Opener 64F Front Opening 64R Rear Opening 65 Scraper Device 68 Operating Arm 69 Inner Scraper 70F Front Outer Scraper 70R Rear Outer Scraper 71 Guide Means 72 Cover Information section

Claims (2)

[Claims] 1. A planting cylinder (3) for planting a soild seedling (28).
5) is provided on the apparatus frame (38) so as to be able to move up and down, and openable and closable front and rear openers (58F, 58R) are provided below the tubular portion (35a) of the planting tube (35). 58R), the front and rear openings (64
F, 64R), and supports an operating arm (68) that swings in a direction approaching the planting tube (35) from behind in conjunction with the raising operation of the planting tube (35) on the device frame (38). The operating arm (68) has the front and rear openings (64).
F, 64R) and a front outer scraper (70F) disposed in front of the front opener (58F), and a rear opening (64).
R), an inner scraper (69) disposed in the front and rear openers (58F, 58R), and a rear opener (58R).
And a rear outer scraper (70R) disposed on the rear surface of the scraper (35), and each scraper (69, 70F, 70R) is moved forward and backward with openers (58F, 5F) as the planting cylinder (35) rises.
8R) A scraper device for a transplanter, characterized in that soil adhered to the inner and outer surfaces of 8R) can be removed by sliding. 2. An upper portion of the operating arm (68) is pivotally supported on the apparatus frame (38), and a lower portion of the operating arm (68) is formed in a forked bifurcated shape.
, A front outer scraper (70F) on the front branch, a rear outer scraper (70R) on the rear branch, an inner scraper (69) higher than the rear outer scraper (70R), and a front outer scraper. (70F) with inner scraper (6
A scraper device for an implanting machine, wherein the scraper device is arranged at substantially the same height as in 9).