JP3280843B2 - Transplanter scraper device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scraper device of a transplanter for planting vegetable seedlings on a ridge or the like in a field.

[0002]

2. Description of the Related Art Some conventional transplanters are provided with a planting tube for planting seeded seedlings. The planting tube has a tapered lower portion and can be freely opened and closed. The planted holes are formed by piercing the ridges while holding the seedlings, and the lower part is opened so that the planted seedlings are planted in the planted holes.

[0003] In the above-mentioned planting tube, the soil of the seeded seedling may adhere to the inner wall surface of the tube and the soil pierced into the ridge may adhere to the outer wall surface of the tube. If soil remains attached to the inner wall surface of the planting cylinder in this way, the posture of the seedlings may be disturbed during planting, or the adhered soil may resist the falling of seedlings, so that seedlings can be planted smoothly. If the soil is still attached to the outer wall surface of the cylinder, planting holes may be formed large by the attached soil, and the planting posture of the seedlings may be lost.

[0004] In order to solve the above-mentioned problem, a device as shown in FIG. 13 has been proposed (Japanese Patent Application No. 6-196933). That is, a support piece 91 attached to the operation arm 90 on the transplanter side, and a rubber piece that is supported by the support piece 91 and scrapes off the adhering soil on the wall surface by coming into contact with and moving relative to the wall surface of the planting tube. A scraper device 93 having a blade 92 is provided. The support piece 91 is fixed to the arm 90 by welding or the like,
1, a male screw 91a is formed and attached with a nut 94 and a lock nut 95. And blade 9
2 is a bolt 9 attached to the support piece 91 via a plate 96 or the like.
7. It is attached with a nut 98.

[0005] Each time a seedling is planted by the planting cylinder, the blade 92 performs an operation of scraping off attached soil.

[0006]

By the way, the blade 92 of the above-mentioned scraper device 93 is made of elastic rubber or the like, and is elastically deformed when it comes into contact with the planting cylinder. However, when the soil is firmly adhered to the wall surface of the planting tube, the blade 92 may be largely elastically deformed and may not be sufficiently scraped off. Damage such as cracks was likely to occur.

Further, since the blade 92 is attached to the support piece 91 by a bolt 97 and a nut 98, the bolt 97 and the like may gradually become loose due to the use of the scraper device 93, and the blade 92 may become loose. There is a risk that the soil may come off from the shaft 91 or the looseness of the bolt 97 or the like may cause looseness of the adhered soil due to looseness.

When the male screw 91a is formed on the support piece 91 and fixed to the arm 90 with the nut 94 and the lock nut 95, the support piece 91 is rotated with respect to the arm 90 by using the scraper device 93. Also, there is a possibility that the angle of the blade 92 with respect to the planting cylinder or the like may change. Since the blade 92 is worn or damaged, it is a consumable item that needs to be replaced after a certain use. To replace the blade 92, disconnect the bolt 97 and the nut 98 from the support piece 91. In order to remove and attach the blade 92, the work is troublesome. Further, the bolt 97 and the nut 98 project from the surface of the support piece 91 and the plate 96. There is a possibility that the bolt 97 and the like may be crushed, and if the bolt 97 is crushed, it becomes more difficult to replace the blade 92 as described above.

A male screw 91a formed on the support piece 91
Can be replaced by removing the support piece 91 from the arm 90 by unscrewing the nut 94 and the lock nut 95. However, it is necessary to loosen or tighten both the nut 94 and the lock nut 95. Also, blade 9
It was necessary to adjust the angle with respect to the planting cylinder No. 2, and such an operation was troublesome.

In order to solve the above-mentioned problems, the present invention improves the durability of the blade, and further securely removes the soil by firmly attaching the blade to the support member. It is an object of the present invention to provide a transplanter scraper device that facilitates blade replacement work and the like.

[0011]

The present invention employs the following technical means to achieve the above object. That is,
A support piece 80 attached to the transplanter 11 side;
Planting tube 49 supported by the plant 0
Resiliently deformable blades 78, 7 that scrape off the soil adhering to the wall surface by coming into contact with and moving relative to the wall surface.
9, the supporting piece 80 is embedded in the blades 78, 79 and fixed by adhesion, and the rigidity of the blades 78, 79 is provided at least at the site 78a, 79a of the blades 78, 79 where the soil is scraped off. Is characterized in that a reinforcing material 85 is embedded in order to increase the height.

According to this, the support piece 80 is attached to the blade 7
Since the blades 78 and 79 are embedded in and fixed to the adhesive pieces 8 and 79 and used in a scraper device, the blades 78 and 79 do not come off or rattle with respect to the support pieces 80, and the action of scraping off the adhered soil can be reliably performed. it can. By embedding the reinforcing material 85 in the blades 78 and 79, the blade 7
The rigidity of 8,79 is enhanced, preventing damage due to excessive bending and the like, and also improving the effect of scraping off the adhered soil.

Further, according to the present invention, the reinforcing member 85 is wrapped around the supporting piece 80 on the blade moving direction side of the supporting piece 80, and the site 78 where the blades 78, 79 scrape off the adhered soil.
a, 79a, and are embedded in the blades 78, 79.
Wrapping in the direction of movement of the blades 78, 79, the reinforcing member 85 is pressed by the support piece 80 when the blade is elastically deformed in the direction opposite to the direction of movement, thereby increasing the rigidity of the blades 78, 79. It can be even higher. The reinforcing member 85 is disposed on one side of the support piece 80, and the support piece 80 is firmly bonded to the blades 78 and 79 with a wide bonding area on the blade elastic deformation side (curved direction side). Blade 78 from piece 80,
79 can be prevented from peeling off.

The present invention relates to the blades 78, 7
9 is characterized in that the thickness of the support piece embedding portion is formed to be thicker than the thickness of the mud scraping action portions 78a, 79a of the blades 78, 79, whereby the supporting portions of the blades 78, 79 are formed. In this case, the thickness and thickness are increased to increase the strength and rigidity, thereby preventing damage such as cracking of this portion so that the blades 78 and 79 do not come off from the support piece 80.

In the present invention, the transplanter 11 is provided with an operating arm 68 having insertion holes 74 and 75 for attaching the support pieces 80, and the support pieces 80 are provided in the insertion holes 74 and 75. An attachment shaft portion 82 having a screw portion 83 capable of attaching the support piece 80 to the arm 68 is formed by screwing the insertion nut 84, and the attachment shaft portion 82 is attached by abutting the operation arm 68. Insertion hole 7 of shaft portion 82
Abutment piece 88 for positioning in the axial direction with respect to 4, 75
The contact piece 88 contacts the operation arm 68 in a state where the mounting shaft portion 82 is inserted into the insertion holes 74 and 75, thereby preventing the mounting shaft portion 82 from rotating around the axis. Piece 8
7 is formed, and according to this,
The contact piece 88 abuts on the arm 68, so that the support piece 80
Is easily positioned with respect to the arm 68, and the contact between the contacted piece 88 and the contact piece 87 allows the mounting shaft 8
2, that is, the blades 78 and 79 can be positioned at a predetermined angle with respect to the planting cylinder and the like.
0 can be attached, so that attaching and detaching operations can be easily performed. In addition, the use of the scraper device prevents the blades 78 and 79 (the mounting shaft portion 82) from rotating, thereby preventing a reduction in the action of scraping off the attached soil.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG.
1 is a walking type having a steering handle 13 at a rear portion of the traveling vehicle 12, which runs in the longitudinal direction across the ridges 14, and covers the soiled seedlings 28 with the multi-film M.
At predetermined intervals.

The traveling vehicle 12 has a gantry 16 at a front portion,
An engine 17 is mounted on the gantry 16, and the engine 17 is covered with a bonnet 18. A transmission case 19 is fixed to the rear of the gantry 16, and is formed with a square pipe or the like at the rear of the transmission case 19. The front part of the main frame 15 is fixed, and the rear part of the main frame 15 is bent upward to serve as a mounting part for the steering handle 13. The power of the engine 17 is transmitted to the transmission case 19 by a wrapping transmission or the like.

Power from the inside of the transmission case 19 is supplied to the wheel transmission shaft 20 projecting left and right and to the left and right.
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. The left and right ends of the wheel transmission shaft 20 support left and right drive wheels 24 (rear wheels) via a transmission case 23 that swings up and down around the axis.
The drive wheels 24 can be driven by the internal winding transmission 25. This drive wheel 24 rolls in the groove between the ridges 14. In addition, a pair of left and right front wheels 26 and a ridge height detection roller 27 are provided at a front portion of the traveling vehicle 12.

At the rear of the traveling vehicle 12, there is a transplanting work unit 29.
Is provided. The transplanting operation unit 29 includes a seedling supply device 30 and a planting device 31 for planting the soild seedlings 28 supplied from the seedling supply device 30 into the ridges 14 by the planting cylinder 35.
And a multi-film M
And a multi-film punching device 32 for punching a transplantation 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 in which the soiled seedlings 28 are 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 a predetermined seedling removal position, the seedlings 28 are taken out one by one with 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. It is made to enter. The seedling tray 33 is made of resin and has flexibility, and a large number of pot portions 33 are arranged vertically and horizontally.
a protruding from the rear surface, and each pot portion 33a
Seedlings 28 are raised.

A transmission shaft 37 connected to the second PTO shaft 22 is connected to the power receiving shaft 36 of the seedling supply device 30 via a universal joint, and the above operation is repeated by the power from the transmission shaft 37. It is. As shown in FIGS. 10 and 11, the planting device 31 and the multi-film punching device 32
It is provided on an apparatus frame 38 supported on the PTO shaft 21 so as to be able to swing up and down. This device frame 38 is mainly composed of left and right frames 38L, 34R in the shape of a square pipe, and a connecting frame 38A connecting the rear ends of the left and right frames 38L, 38R. Right frame 38R
The first PTO shaft 21 is inserted and supported by bearings 39 provided at the front end of the left frame 38L and the front end of the left frame 38L.

A drive shaft 41 is rotatably supported by left and right bearings 40 fixed to the apparatus frame 38. 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, so that the rotational power of the engine 17 is supplied. The power is transmitted to the drive shaft 41, and the power from the drive shaft 41 is transmitted to the planting device 31 and the multi-perforation device 32.

The sprockets 42, 43 and the transmission chain 44 are covered by a chain case 45. A pressure reduction / covering roller 46 is provided at the rear of the device frame 38, and the rear end of the device frame 38 is connected to the main frame 1.
5 so that the apparatus frame 38 can swing up and down according to the height of the ridges 14. The multi-film punching device 32 includes a gas burner type punching device 47.
The perforating means 47 is connected to the apparatus frame 38 via a parallel link 48 so as to be vertically movable. In addition,
The gas pipe connection part 4 for connecting a gas supply pipe to the perforation means 47
9 is provided to protrude forward.

A cam roller 50 is pivotally connected to the upper link 48a of the parallel link 48. This cam roller 50
Is adapted to roll on the outer periphery of a disc-shaped planar cam 51 provided on the drive shaft 41, and the cam roller 50 is urged by its own weight of the perforating means 47 or by urging means such as a tension spring. It is urged in the direction of pressing 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 transplant hole is made 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 comprises a planting cylinder 35 which is pierced and moved with respect to the ridge 14 in order 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 a left-right drive shaft 41 provided on the apparatus frame 38 is connected to the upper link 56a of the second parallel 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 56 to move the planting cylinder 35 up and down and back and forth. , And draws a substantially elliptical trajectory.
When piercing 5 into ridge 14, planting cylinder 35 does not move substantially forward with respect to the field.

As shown in FIG. 4 to FIG.
The upper part is a cylindrical body having an opening having a rectangular shape in a plan view, and the lower part is provided with a pair of front and rear openers 58 that can be opened and closed in the front and rear direction with the mounting pin 59a as a fulcrum. The opener 5
Reference numeral 8 denotes an opening / closing operation of the opening / closing link 59 which can be opened / closed by the bending link pin 60. When the opener 58 enters the ridge 14 at the bottom dead center of the locus of the planting cylinder 35, the opener 58 forms a planting hole in the ridge 14, and the interlocking device pivotally connected to the opener 58 and the device frame 38. It is opened back and forth by 61 so that the seedling 28 can be planted in the planting hole. The front and rear openers 58 are urged by a tension spring 62 so as to always close when the interlocking tool 61 is not operating. The opening / closing link 59 of the opener 58 is provided with a stopper bolt 63 for limiting the opening of the opener 58.

A notch-shaped opening 64 is formed in the upper portion on the rear side of the front and rear openers 58 so that an inner scraper 69 of a scraper device 65 described later can enter the inside of the opener 58 from outside. I have. This opening 64
The lower edge portion is formed so as to protrude slightly rearward from the upper edge portion, and the lower portion than the lower edge is curved and formed in a mountain shape toward the inside of the opener 58.

A scraper device 65 is provided on the rear side of the planting tube 35. When the planting tube 35 is inserted into the ridge 14 and the seedlings 28 are planted, it is moved upward by the swing link mechanism 53. The soil attached to the outer and inner wall surfaces of the opener 58 is scraped off. The scraper device 65 includes an operating arm 68 having an upper portion 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 swing back and forth. Inner and outer scrapers 69, 7 which are protruded to the side and are arranged behind the planting cylinder 35.
0, and guide means 71 for scraping the inner and outer scrapers 69, 70. The guide means 71 includes a guided portion 72 provided on the operation arm 68.
And a guide portion 73 fixed to the cylinder above the planting cylinder 35.

As shown in FIGS. 2 and 3, the operating arm 68 is formed in the shape of a band plate, and the pin 67 is provided at the upper end thereof. A part 72 is provided. A first insertion hole 74 for attaching the inner scraper 69 is formed in the middle of the arm 68 below the roller 72,
Further, a second insertion hole 75 for attaching the outer scraper 70 is formed at the lower end of the arm 68 below the lower end.

The operating arm 68 is connected to the connecting frame 38A of the device frame 38 by a tension spring 76 and is urged rearward. The device frame 38 is biased rearward by the operating arm 68. Is provided. Guiding part 73 of guiding means 71
Is a plate member formed in a substantially rectangular shape in a side view.
Rises from the bottom dead center and moves backward,
And pulls the operating arm 68 forward against the tension spring 76, and then moves the inner and outer scraper parts 69 and 70 downward against the rise of the planting cylinder 35. It is formed to move.

The inner and outer scrapers 69, 70 are made of rubber,
Blades 78 and 79 made of an elastically deformable material such as resin and acting to scrape (scraping) attached soil;
And a support piece 80 embedded in the blades 78 and 79 and bonded by baking. One end of the support piece 80, that is, a portion 81 to be embedded in the blades 78 and 79 is formed as a flat plate having a rectangular cross section, and the other end is formed as a mounting shaft portion 82 formed as a rod having a circular cross section. A screw portion 83 is formed on the mounting shaft portion 82.

The support piece 80 of the inner scraper 69
The inner scraper 69 is fixed to the operation arm 68 by screwing the nut 84 into the screw portion 83 from the outside of the operation arm 68 so that the inner scraper 69 is supported by the outer scraper 70. The outer scraper 70 is fixed to the operation arm 68 by inserting the mounting shaft portion 82 of the piece 80 into the second insertion hole 75 and screwing a nut 84 into the screw portion 83 from outside the operation arm 68.

Inside the blades 78 and 79, one or more sheets of fiber cloth (canvas) of cotton, nylon, polyester, etc., a plurality of steel or fiber cords,
A reinforcing material 85 made of steel, a fiber belt, or the like is embedded. The reinforcing material 85 enhances the rigidity of the blades 78, 79, and the blades 78, 79 due to excessive bending or the like.
It is intended to prevent damage such as cracks and improve durability.

The reinforcing material 85 is wrapped (superposed) on the embedding portion 81 on the side (lower side) in the direction of movement of the blades 78, 79 relative to the implantation tube 35 with respect to the embedding portion 81 of the support piece 80.
And the scraping action portions 78a of the blades 78, 79,
It is embedded so as to extend to the 79a side. That is, the reinforcing member 85 is located below the upper and lower rubber layers of the blades 78 and 79, and the supporting piece 80 is disposed above the reinforcing member 85. Therefore, the upper surface side and the front and rear side surfaces of the support piece 80 are firmly baked and adhered to the upper rubber layers of the blades 78 and 79 with a sufficiently large area.
8, 79 do not come off easily.

The support piece 80 of the inner scraper 69 is embedded substantially in the center of the blade 78 in the front-rear direction, and the front and rear sides of the blade 78 serve as a site 78a for scraping off the adhering soil.
Each of the front and rear ends is formed in an arc shape substantially along the inner wall surface of the planting cylinder 35. On the other hand, the support piece 80 of the outer scraper 70
Is embedded in the rear part of the blade 79, the front side of the blade 79 is a site 79 a for scraping off the adhered soil, and the front end is formed in an arcuate concave shape substantially along the outer wall surface of the planting tube 35. ing.

The thickness T1 of the support piece embedding portion 81 of the blades 78, 79 is formed larger than the thickness T2 of the adhering soil scraping portions 78a, 79a of the blades 78, 79 (see FIG. 8). ), The strength and rigidity of the blades 78, 79 at the embedding portion 81 of the support piece 80 are increased, and the blades 78, 79 are detached from the support piece 80 by the force applied during the action of scraping off the adhered soil or by elastic deformation. Has been prevented.

The support piece 80 and the operating arm 68 include:
Positioning means 86 is formed. The positioning means 86 is provided between the inside and outside scrapers 69 and 70 of the operation arm 68.
Piece 87 protruding from the side surface on the side of the inner side (left and right inner sides), and a plate-shaped contact piece 88 provided at a longitudinally intermediate portion (mounting shaft portion 82) of the support piece 80 of the inner and outer scrapers 69 and 70. Consists of

When the mounting shaft portion 82 of the supporting piece 80 is inserted into the first and second through holes 74 and 75 of the operating arm 68, the abutting piece 88 is located on the inner side of the operating arm 68. By contacting the side surface, the position of the mounting shaft portion 82 in the insertion direction is regulated, and when the mounting shaft portion 82 is inserted through the first and second through holes 74 and 75, the mounting shaft portion 82 comes into contact with the contact piece 87. The mounting shaft 82 is prevented from rotating. Therefore, when the nut 84 is screwed into the screw portion 83 of the support piece 80, the support piece 80 and the blades 78, 79 do not rotate without the support piece 80 being pressed down with a spanner or the like, so that the mounting is easy. Also, the support piece 80 and the blades 78, 79 are prevented from rotating when the attached soil is scraped by the blades 78, 79 after being attached.

The scraping operation in the above configuration will be described with reference to FIGS. The arrow A indicates the traveling direction (transplant direction) of the transplanter 11, and the left side of the drawing indicates the rear side of the transplanter 11. Soiled seedling 2 taken out from seedling tray 33 of seedling supply device 30 by seedling removal nail 34
8 is dropped from above into the planting tube 35 moved to the vicinity of the top dead center by the swing link mechanism 53, and then the planting tube 35
Is lowered by the swinging link mechanism 53 and pierces the ridge 14 at the bottom dead center to form a planting hole (see FIG. 4). Then, the opener 58 is opened by the action of the interlocking tool 61, and the seedling 28 is planted in the planting hole.

After the seedlings 28 have been planted, the planting cylinder 35 is raised slightly backward by the swinging link mechanism 53, and the guide portion 73 of the scraper device 65 provided on the planting cylinder 35
It engages with a guided portion 72 provided on the operating arm 68 (FIG. 5).
reference). When the planting cylinder 35 further rises, the guided portion 72 rolls or slides on the guide portion 73, and the operating arm 68 swings forward against the tension spring 76 and is pulled, The inner scraper 69 is connected to the opening 64 of the opener 58.
From the inner scraper 69 and the outer scraper 70
6 sandwiches the inner and outer surfaces of the opener 58 (FIG. 6).
reference).

The inner and outer scrapers 69 and 70 move downward to scrape off the soil adhering to the inner and outer surfaces of the opener 58, in contrast to the rise of the planting cylinder 35 from this state. I have to. Therefore, 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.

At this time, the inner scraper 6 shown in FIG.
9 as an example, the blade 78 is
It elastically deforms (curves) upward when it contacts the inner wall surface and relatively moves downward. At this time, the reinforcing material 85 is
Since it is arranged below 0, the reinforcing member 85 is pressed by the support piece 80, and the rigidity of the blade 78 is further improved. Further, when the blade 78 is bent upward, the blade 78 on the upper surface side of the support piece 80 bends in a contracting direction to easily separate the support piece 80 from the support piece 80. Since the upper surface and the blade 78 are firmly bonded by baking over a wide area, such peeling can be prevented.

FIG. 8 shows the case of the inner scraper 69, but the outer scraper 70 performs the same operation. Then, after the adhered 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 6
8 is pulled back again by the tension spring 76 and received by the stopper 77, while 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 performed. Is repeated.

When the inner and outer scrapers 69 and 70 are replaced, the screw 83 of the mounting shaft 82 of the support piece 80 and the one nut 84 are unscrewed from the operating arm 68 to be easily removed. And when installing it,
Easy mounting can be performed simply by inserting the mounting shaft 82 into the insertion holes 74 and 75 and tightening one nut 84. FIG.
Shows a second embodiment of the present invention.

FIG. 12A shows a blade 78.
Inside, a part of the reinforcing material 85 (the end near the support piece 80) wraps with the support piece 80 on the lower side, and extends toward the scraping action site 78 a side of the soil attached to the blade 78. In this case, the same effect as in the first embodiment is obtained, and in addition, the reinforcing material 85 on the lower surface side of the support piece 80 is additionally provided.
Since the non-wrapped portion is directly baked and adhered to the blade 78, the support piece 80 and the blade 78 are more firmly adhered than in the first embodiment.

FIG. 12B shows a blade 78.
Inside, the reinforcing material 85 is embedded only in the attached soil scraping action portion 78a side without wrapping around the support piece 80. In this case, the rigidity of the attached soil scraping action portion 78a of the blade 78 is reduced. Thus, it is possible to improve the scraping of the attached soil and prevent the blade 78 from being damaged. In addition, the one shown in FIG.
Compared with the embodiment shown in FIG. 12 and FIG. 12A, the reinforcing member 85 is not pressed by the support pieces 80 and thus is slightly inferior in rigidity. However, the entire periphery of the support pieces 80 is bonded to the blade 78 by baking. Therefore, the support piece 80 and the blade 7
The adhesion with No. 8 is stronger.

FIG. 12C shows that the reinforcing material 85 is wrapped (superposed) on the upper surface side of the support piece 80, and this is also the same as the above embodiment. By improving the rigidity, the scraping of the adhered soil is improved and the damage is prevented. However, as described in the first embodiment, the blade 78 is attached to the planting cylinder 35.
When the support piece 80 is elastically deformed upward by the relative movement with respect to
The blade 78 on the upper surface side of the member is bent in the contracting direction,
12 (a), it is wrapped with the reinforcing material 85 under the support piece 80 as shown in the first embodiment or the one shown in FIG. 12 (a). Is preferred.

Although FIG. 12 shows the inner scraper 69 as an example, the outer scraper 70 can have the same configuration. The present invention is not limited to the above embodiment. For example, the blade may be bonded and fixed to the supporting piece with an adhesive without baking. Although the tension spring 76 of the scraper device 65 is a coil spring, it may be provided with a helical spring around the pin 67, and the stopper 77 may be provided with a bolt to be adjustable.

[0051]

As described above in detail, according to the present invention, the support piece attached to the transplanting machine and the wall of the planting tube supported by the support piece and on which the seedlings are planted are brought into contact. And having an elastically deformable blade that scrapes off the soil adhering to the wall surface by moving relative to each other, wherein the support piece is embedded and adhered and fixed to the blade, and at least to the action site of the blade where the soil is scraped off. Since the reinforcing material is embedded to increase the rigidity of the blade, the blade does not come off or rattle from the support piece by using the scraper device, and the scraping action of the attached soil can be reliably performed. By embedding the reinforcing material in the blade, the rigidity of the blade is enhanced, damage due to excessive bending or the like is prevented, and the effect of scraping off attached soil is also improved (claim 1).

Further, according to the present invention, the reinforcing material is wrapped around the support piece on the blade moving direction side of the support piece, extends to the side of the blade where the attached soil is scraped off, and is embedded in the blade. When the blade is elastically deformed in the direction opposite to the moving direction, the reinforcing member is pressed by the support piece, so that the rigidity of the blade can be further enhanced, and the reinforcing material is arranged on one side of the support piece, and the support piece Is strongly adhered to the blade on the blade elastic deformation side (curved direction side) with a large bonding area, so that peeling of the blade from the support piece can be prevented (claim 2).

According to the present invention, since the thickness of the supporting piece embedding portion of the blade is formed to be thicker than the thickness of the mud scraping action portion of the blade, the strength and rigidity of the supporting portion of the blade are increased. However, the blade is prevented from coming off from the support piece by preventing damage or the like of this portion (claim 3). The present invention also provides an implanting machine, wherein an operating arm having an insertion hole for attaching the support piece is provided, and the support piece is screwed into the support hole, and a nut is screwed into the support piece. A mounting shaft portion having a screw portion capable of mounting the mounting shaft portion is formed, and the mounting shaft portion is formed with an abutting piece that is positioned in an axial direction with respect to the insertion hole of the mounting shaft portion by contacting the arm. The arm has a contact piece that prevents rotation of the mounting shaft portion around the axis by being brought into contact with the contacted piece in a state where the mounting shaft portion is inserted into the insertion hole. According to the contacted piece, the positioning of the support piece with respect to the arm is facilitated by the contacted piece, and the angle between the blade and the planting cylinder can be easily determined by the contact between the contacted piece and the contacting piece, Use one nut to prevent rotation of the mounting shaft The support piece attached to the over arm, has to be able to remove,
The exchange workability can be improved. Then, the use of the scraper device can prevent the action of scraping off the adhering soil due to the rotation of the blade from being reduced (claim 4).

[Brief description of the drawings]

FIG. 1 is a perspective view showing an inner scraper according to an embodiment of the present invention.

FIG. 2 is a side view showing the scraper device.

FIG. 3 is a rear view showing the scraper device.

FIG. 4 is a side view showing the planting cylinder and the scraper means, and shows a state where the planting cylinder holds soil seedlings and pierces a ridge.

FIG. 5 is a side view showing the transplanting cylinder and the scraper means, and shows a state in which the transplanting cylinder is being lifted.

FIG. 6 is a side view showing the planting cylinder and the scraper means, and shows a state where the planting cylinder is raised and the scraper means operates.

FIG. 7 is a side view showing the planting cylinder and the scraper means, and shows a state where the planting cylinder is raised and the scraper means operates.

FIG. 8 is a side sectional view of the blade.

FIG. 9 is an overall configuration diagram of the vegetable transplanter.

FIG. 10 is an overall schematic side view showing a seedling planting device and a multi-film punching device mounted on a device frame.

FIG. 11 is a plan view of the same.

FIG. 12 is a side sectional view of a blade showing a second embodiment of the present invention.

FIG. 13 is a perspective view of a scraper device according to a conventional example.

[Explanation of symbols]

 11 Transplanter 28 Soiled Seedling 49 Planting Cylinder 68 Operating Arm 74 First Insertion Hole 75 Second Insertion Hole 78 Blade 79 Blade 80 Supporting Piece 82 Mounting Shaft 83 Thread 84 Nut 85 Reinforcement 87 Contacting Piece 88 Covering Piece

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01C 11/00-11/02 303 A01B 71/08

Claims (4)

(57) [Claims] 1. A support piece (80) attached to the transplanting machine (11) side, and a wall of a planting tube (49) supported by the support piece (80) for planting a soil seedling (28). Elastically deformable blades (78, 79) that scrape off the soil adhering to the wall surface by contacting and moving relative to each other;
The support piece (80) is embedded and fixedly adhered to the blade (78, 79), and at least the site (78a, 79a) of the blade (78, 79) for scraping off the attached soil.
And a reinforcing material (85) embedded in the blades (78, 79) to increase the rigidity of the blades (78, 79). 2. The reinforcing member (85) includes a support piece (80).
Is wrapped around the support piece (80) on the blade moving direction side of the blade (78, 79), and the blade (78, 79) scrapes off the soil.
8a, 79a) to extend to the blade (78, 79)
The scraper device for an implanting machine according to claim 1, wherein the scraper device is implanted in the device. 3. The blade (78, 79) is formed such that the thickness of the support piece embedding portion is greater than the thickness of the blade (78, 79) scraping action site (78a, 79a). The scraper device for an implanting machine according to claim 1 or 2, wherein: 4. The support piece (80) is attached to an implanter (11).
An operating arm (68) having an insertion hole (74, 75) for mounting the same is provided.
By screwing an insertion nut (84) into the insertion holes (74, 75), a mounting shaft portion (82) having a screw portion (83) to which a support piece (80) can be mounted on the operating arm (68) is formed. An abutting piece (88) that is formed and abuts on the mounting shaft (82) with respect to the insertion hole (74, 75) of the mounting shaft (82) by abutting on the operating arm (68). ) Is formed, and the abutting piece (88) is brought into contact with the arm (68) in a state where the mounting shaft (82) is inserted through the insertion holes (74, 75), thereby forming the mounting shaft (82). 4. A scraper device for an implanting machine according to claim 1, wherein a contact piece (87) for preventing rotation about an axis is formed.