JP3514705B2 - Implanting device of transplanter - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a planting device for a transplanting machine for sequentially transplanting vegetable seedlings such as onions, lettuce, cabbage, etc., particularly onion seedlings into a ridge while running.

[0002]

[Prior art] Pot seedlings for vegetables (soil block seedlings)
Japanese Patent Application Laid-Open No. 9-32721 discloses a transplanting machine for upland fields.
As disclosed in Japanese Patent Laid-Open No. 2 (1994), a traveling body that travels across a ridge includes a planting section and a seedling supply section, and the planting section receives seedlings supplied from the seedling supply section and transplants the ridge into the ridge. And a planting drive mechanism for moving the planting body up and down to a position where it is projected into a ridge for transplanting seedlings from a seedling supply section.

In the planting drive mechanism, the traveling body is provided with a drive arm that is rotationally driven, and a link means that causes the planting body to make a vertically long and substantially elliptical orbital motion by the rotation of the drive arm. The body is thrust into the ridge at the lower part of the track on the front side to release the seedlings stored inside and to escape at the rear side, and furthermore, in the ridge during the substantially elliptical orbital movement of the plant. By making the moving speed slower than the moving speed outside the ridge, the residence time of the plant in the ridge is lengthened. Therefore, as the traveling body moves forward during the orbital movement of the plant, the detached position of the plant with respect to the ridge approaches the plunge position, and is substantially perpendicular to the ridge (the detached position is approximately the same position as the plunge position). Now, the transplanting operation can be performed without damaging the ridges and the transplanted seedlings.

[0004]

In the above-mentioned prior art, since vegetables having a relatively long distance between plants such as lettuce and cabbage can have a sufficient mileage, normal transplanting can be performed, but vegetables such as an onion have a relatively short distance between plants. In, it is difficult to significantly change the trajectory of the plant with the traveling distance of the traveling body or the residence time in the ridge, the separation position for the ridge comes to move backward from the plunge position, and the ridge is damaged, Running resistance may increase. It is an object of the present invention to provide a planting device for a transplanter, which can solve the problems of the prior art.

It is an object of the present invention to provide a planting device for a transplanter in which the longitudinal component of the orbital motion of the plant is reduced to bring the detached position from the ridge closer to the plunge position. . The present invention provides a planting device for a transplanter capable of bringing a descending orbit and an ascending orbit closer to each other by intersecting the descending orbit and the ascending orbit during the orbital movement of the implant. To aim.

[0006]

A first specific means for solving the problems in the present invention is provided with a planting section 27 and a seedling supplying section 28 in a traveling body 2 traveling across a ridge R, and The planting unit 27 receives the seedling N supplied from the seedling supplying unit 28 and transplants it into the ridge R, and the planting unit 44 from the position where the seedling N is supplied from the seedling supplying unit 28. To this end, the planting drive mechanism 51 is provided for moving up and down to a position where it is projected into the ridge R. The planting drive mechanism 51 is provided with a rocking body 53 at the tip of a base link 52 pivotally supported by the traveling body 2. An elevating body 56 is provided at the tips of the upper and lower links 54, 55 pivotally supported by the rocking body 53, the planting body 44 is supported by the elevating body 56, and a drive arm 57 that is driven to rotate is used as the basic link 5.
2 is provided above the traveling body 2, and the drive arm 57 and the upper link 54 are connected to swing the upper link 54 up and down while the swinging body 53 is moved up and down by the rotation of the drive arm 57.

As a result, the component of the orbital motion of the implant 44 in the front-rear direction becomes smaller, and the detached position from the ridge R comes closer to the plunge position. A second specific means for solving the problem in the present invention is provided with a planting section 27 and a seedling supply section 28 on the traveling body 2 traveling across the ridge R, and the planting section 27 is a seedling supply section 28. Up to a planting body 44 for receiving the seedling N supplied from the plant and transplanting it into the ridge R, and a position where the planting body 44 is projected from the position where the seedling N is supplied from the seedling supply unit 28 to the ridge R for transplanting. And a planting drive mechanism 51 for raising and lowering the planting drive mechanism 51. The planting drive mechanism 51 is pivotally supported on the traveling body 2 so as to be swingable in a substantially vertical direction, and has two substantially parallel foundations arranged vertically. The swing body 53 is provided at the tip of the link 52,
A drive arm 57 that is rotationally driven is provided on the traveling body 2 above the basic link 52, and an elevating body 56 that supports the planting body 44 is provided at the tip of a lower link 55 pivotally supported by the rocking body 53. An upper link 54, one end of which is connected to an elevating body 56, is arranged above the link 55, the other end of the upper link 54 is connected to a drive arm 57, and an intermediate portion is separated from the connecting position of the base link 52 and the rocking body 53 is arranged. The upper and lower links 5 are connected to the upper and lower links 5 while rotating the driving arm 57 to raise and lower the rocking body 53.
It is to rock 4, 55 up and down.

As a result, the vertical links 54 and 55 are vertically moved by the drive arm 57, and the vertical movement of the basic link 52 is added to the vertical links 54 and 55. More ingredients,
The detached position from the ridge R comes closer to the rushed position. A third specific means for solving the problem in the present invention is provided with a planting section 27 and a seedling supply section 28 in the traveling body 2 traveling across the ridge R, and the planting section 27 is a seedling supply section 28. Up to a planting body 44 for receiving the seedling N supplied from the plant and transplanting it into the ridge R, and a position where the planting body 44 is projected from the position where the seedling N is supplied from the seedling supply unit 28 to the ridge R for transplanting. And a planting drive mechanism 51 for raising and lowering the planting drive mechanism 51.
The drive arm 57 rotatably provided on the traveling body 2, two substantially parallel base links 52 supported on the traveling body 2 so as to be swingable in a substantially vertical direction, and provided at the tip of the basic link 52. The oscillating body 53, an upper link 54 connecting a base portion to the tip of the drive arm 57 and an intermediate portion above the basic link connecting position of the oscillating body 53, and a plant provided at the tip of the upper link 54. Lifting body 56 supporting the attached body 44
And a lower link 55 that connects the rocking body 53 and the lifting body 56, and an operating member 5 that opens the planting body 44 at the ridge entry position.
8 and the actuating member 5 when the planting body 44 reaches the ridge entry position.
8 has an opening operation means 59 for causing the opening operation.

As a result, the vertical links 54, 55 are vertically moved by the drive arm 57, and the vertical movement by the basic link 52 is added to the vertical links 54, 55. More ingredients,
The detached position from the ridge R comes closer to the rushed position. A fourth specific means for solving the problem in the present invention is provided with a planting section 27 and a seedling supply section 28 in the traveling body 2 traveling across the ridge R, and the planting section 27 is a seedling supply section 28. Up to a planting body 44 for receiving the seedling N supplied from the plant and transplanting it into the ridge R, and a position where the planting body 44 is projected from the position where the seedling N is supplied from the seedling supply unit 28 to the ridge R for transplanting. And a planting drive mechanism 51 for raising and lowering the planting drive mechanism 51.
Is a drive arm 57 provided on the traveling body 2, a descending track D that descends from the seedling supply position to the ridge entry position by the rotation of the drive arm 57, and a rear side from the lower part of the descending track D. And link means 60 for causing the ascending track U to be connected to the upper part through the front side while intersecting with the descending track D on the way.

As a result, the ascending track U and the descending track D intersect each other during the ascending / descending process, and the planted bodies 4 at the upper and lower portions of both motion tracks.
The front and rear positions of 4 are extremely close, and even if the distance between stocks is short,
The transplanting work can be performed without breaking the ridge R.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 16 and 17, reference numeral 1 denotes a transplanter. This transplanter 1 is a walking type equipped with a transplanting device 3 and a steering handle 4 at a rear portion of a traveling body 2, and has a ridge R while straddling a ridge R. While traveling forward in the longitudinal direction, soil block seedlings (hereinafter referred to as seedlings) N are automatically planted in the ridges R at predetermined intervals. Further, the transplanting machine 1 is configured to plant two seedlings of left and right by running one way (running in one direction) in the longitudinal direction of the ridge. The ridge R may be covered with a mulch film.

The traveling body 2 has a pedestal 6 attached to the front part of the mission case 5 so as to project forward, and a traveling body 8 mainly composed of an engine, a fuel tank, a battery and the like mounted on the pedestal 6. It has front wheels 9 and rear wheels (driving wheels) 10 provided on both left and right sides of the traveling machine body 8. The front wheels 9 are provided on the left and right end portions of a front wheel support shaft 11 rotatably supported on the front portion of the pedestal 6 via support arms 12, and project outward from both left and right sides of the mission case 5. A rear wheel 10 is provided at an outer end portion of a rear wheel support shaft 13 rotatably supported around an axis in the left-right direction via a transmission case 14.

The power of the engine is input to the mission case 5, and the traveling system power is transmitted from the mission case 5 to the rear wheels 10 via the transmission shafts in the left and right rear wheel support shafts 13 and the transmission mechanism in the transmission case 14. It is supposed to be done. Also, from the mission case 5, the first projecting rearward
The PTO shaft 18 and the second PTO shaft 19 protruding to the left and right sides
Power can be taken out from the. The front wheel support shaft 11 and the rear wheel support shaft 13 on the left and right sides are interlockingly connected via the interlocking rod 15, and the hydraulic cylinder 1 on the pedestal 6 is connected.
By operating 6 the interlocking member 17 and the interlocking rod 1
The front wheel support shaft 11 and the rear wheel support shaft 13 are interlocked with each other via 5 to rotate the left and right front and rear wheels 9 and 10 at the same time, and the traveling machine body 8 and the like are moved up and down with respect to the ridge R. Is configured.

The left and right sides (right side) of the front wheel support shaft 11 and the left and right sides of the rear wheel support shaft 13 are configured to be expandable and contractible and can be adjusted according to the left and right width of the ridge R. . Therefore, in the transplanting machine 1, the transplanting device 3 is offset to the other side (left side) of the ridge R by extending the front wheel support shaft 11 and the rear wheel support shaft 13 on the left and right sides.
By reciprocating in the longitudinal direction of the ridge R, four rows of seedlings are planted in the ridge R.
For the narrow ridge R, the front wheel support shaft 11 and the rear wheel support shaft 13 are contracted, the transplanting device 3 is arranged in the center of the ridge, and one-way travel in the longitudinal direction of the ridge R is performed for one ridge. 2 seedlings will be planted.

A bonnet 21 for covering the engine and the like is provided on the pedestal 6, and spare seedling tray stands 22 are provided on both left and right sides of the bonnet 21. The transplanting device 3 is provided on a transplantation frame 26 mounted on the rear part of the traveling machine body 8, and has a planting section 27 for planting the seedling N in the ridge R and a seedling supply for supplying the seedling N to the planting section 27. It is mainly composed of a section 28. 1 to 3, 6, 7, 1
6 and 17, the transplantation frame 26 includes a fixed frame 26A having a front portion attached and fixed to the mission case 5,
The front part is composed of a movable frame 26B that is attached to the second PTO shaft 19 so as to be rotatable around its axis, and the mounting frame 29 is provided with the seedling supply part 28 in the fixed frame 26A and also mounts and fixes the handle 4. The movable frame 26 </ b> B is provided with the planting portion 27.

The seedling supply section 28 takes out a seedling tray 30 on which a seedling tray on which a large number of seedlings have been raised is placed, and at a predetermined position, takes out the seedling N from the pot section of the seedling tray and conveys it to the planting section 27. It has a seedling feeding device 31 for. The seedling tray is made of plastic, is thin and has flexibility, and is provided with a large number of pot portions arranged in a grid pattern at a predetermined pitch in the vertical and horizontal directions. It is formed into a long rectangle. Then, soil block seedlings are grown by filling the pot soil with bed soil, and sowing the seeds and raising seedlings.

The seedling placing table 30 is mainly composed of a placing plate 30A on which a seedling tray is placed and side plates 30B provided on the left and right side portions of the placing plate 30A, and is arranged in a front downward slope. It is supported by front and rear rails 32A and 32B provided on the fixed frame 26A and the mounting frame 29 so as to be capable of reciprocating left and right. Further, the seedling supply unit 28 has a lateral feeding means 33 for intermittently laterally feeding the seedling trays in the lateral arrangement direction (horizontal direction) and a vertical feeding means 34 for longitudinally feeding the seedling trays in the longitudinal arrangement direction. By feeding the seedling placing table 30 intermittently right and left by the lateral feed means 33, the seedling N can be taken out from the pot section in the horizontal row by the seedling feeder 31 and after the seedlings are taken out from the pot section in the horizontal row. By vertically feeding the seedling tray for one pitch of the pot portion by the vertical feeding means 34, the seedlings can be taken out from the pot portion in the next horizontal row.

The seedling dispensing device 31 is arranged on the front side of the seedling placing table 30, and is provided with a pair of left and right seedling take-out tools 35 for one seedling tray in order to support two-row planting.
Further, a claw actuating mechanism 36 for supporting and operating the seedling extracting tool 35 is provided for each of the pair of seedling extracting tools 35. Each seedling extractor 35 has a pair of left and right needle-shaped or L-shaped nails 35A in cross section at its tip, and the nails 35A can be pierced into the pot portion to hold seedlings.
The left and right seedling take-out tools 35 are arranged side by side at intervals of half the number of pots in the horizontal arrangement direction, and one side (right side) of the seedling take-out tools 35 is one side (right side) in the horizontal arrangement direction of the pots. ) Take out the seedlings from the half pot section, and use the other (left side) seedling removing tool 35 on the other side (left side) in the horizontal arrangement direction of the pot section.
The seedlings are taken out from the half pot.

The claw actuating mechanism 36 is provided corresponding to each of the left and right seedling feeding devices 31, and the power is input from the first PTO shaft 18 via the transmission shaft 37 to the left and right seedling take-out device 35.
Are designed to work in sync. Then, by driving each claw actuating mechanism 36, as shown in FIGS. 6 and 7, the claws 35A of each seedling extractor 35 reciprocate while drawing a trajectory K between the pot section of the seedling tray and the planting section 27. The seedlings in the pot part are taken out and supplied to the planting body 44 of the planting part 27.

A branch transmission shaft 41 is provided so as to project from the pawl actuating mechanism 36, and power is transmitted from the branch transmission shaft 41 to the input shaft of the lateral feed means 33 through the chain transmission mechanism 42. There is. The planting section 27 forms a planting hole in the ridge R and moves the planting body 44 up and down between the seedling supplying position in the upper part and the seedling releasing position in the lower part, and the planting body 44 for discharging the seedling therein. It has a planting drive mechanism 51 for making it possible, and a soil covering means 46 for drawing soil from the left and right sides of the seedling released into the planting hole to the edge of the plant to fill the bed soil portion of the seedling. The two-row simultaneous planting section 27 is inclined downward and outward so that the pair of left and right planters 44 and the planting drive mechanism 51 are narrow on the upper side and wide on the lower side.

The planting drive mechanism 51 includes a drive arm 57 rotatably provided on the traveling body 2 and two substantially parallel basic links 52 supported on the traveling body 2 so as to be swingable in a substantially vertical direction.
And an oscillating body 53 provided at the tip of the basic link 52,
An upper link 54 having a base portion connected to the tip end of the drive arm 57 and an intermediate portion connected above the basic link connection position of the rocking body 53, and an upper link 54 provided at the tip end of the upper link 54 to support the plant body 44. Lifted body 56 and the swing body 53
And a lower link 55 that connects the lifting body 56 to each other, an actuating member 58 that opens the planting body 44 at the ridge entry position, and an actuating member 58 that performs an opening operation when the planting article 44 reaches the ridge entry position. And opening actuation means 59.

With the foundation link 52, the rocking body 53, the upper and lower links 54 and 55, and the elevating body 56, etc., the planting body 44.
, Descending track D descending from seedling supply position to ridge entry position
Then, the link means 60 is configured to take the ascending track U which rises from the lower part of the descending track D to the rear side and intersects with the descending track D on the way and is connected through the front side at the upper part.
On the movable frame 26B, a first shaft 64 connected to the second PTO shaft 19 protruding from the mission case 5 via a universal joint 63, and the first shaft 64.
A second shaft 66 from which power is transmitted via the chain transmission means 65 and a crank shaft 68 from which power is transmitted from the second shaft 66 via a pair of gears 67 are supported.

The crankshafts 68 are paired on the left and right and are connected to each other via a universal joint 69.
The movable frame 26B is rotatably supported by not only the left and right side portions but also the support portion 70A of the connecting body 70 that connects the left and right side portions. Each of the left and right crank shafts 68 has a crank shape with a drive arm 57 in the middle, and the front end of the upper link 54 is connected to an eccentric shaft 72 at the tip of the drive arm 57. The bases of the two substantially parallel base links 52 are pivotally supported by brackets 74 fixed to the movable frame 26B via pins 73. The two pins 73 may be arranged substantially vertically, but the upper pins are arranged in a slightly inclined shape in which the upper pins are located in front of the lower pins.

The oscillating body 53 connects the tips of the two base links 52 to each other via a pin 75, and connects the front end of the lower link 55 to the lower pin 75. In addition, a pin 76 is provided on the upper part of the oscillating body 53 so as to be eccentric from the upper pin 75, and slightly above the pin 75. It is connected. That is, the upper link 54 is connected to the rocking body 53 above the connecting portion of the basic link 52. Therefore, the basic link 52 and the rocking body 53 constitute a four-bar linkage, and the vertical links 54, 55 and the lifting body 56 form the rocking body 5.
A four-bar linkage is constructed based on 3 and the drive arm 5
The rotation of 7 rotates with the tip of the upper link 54, and the rocking body 53 is constrained by the basic link 52 that rocks in the substantially vertical direction, and controls the posture of the upper link 54 via the protrusion 54A.

The elevating body 56 has a rear portion of the upper link 54 connected to the upper front portion via a pin 77, and a rear portion of the lower link 55 connected to a lower portion apart from the upper link 54 via a pin 78. The planting body 44 is formed in a beak shape with a tapered lower end, and is divided into two parts, a front cup 44F and a rear cup 44R. The front and rear cups 44F and 44R are provided with pivot shafts 79F and 79R, respectively, and are swingably supported by the elevating body 56 via the pivot shafts 79F and 79R.

Although the front and rear cups 44F and 44R are spread upward, the rear wall of the rear cup 44R is closer to the vertical than the front wall of the front cup 44F, and is inserted from the front upper side. The angle of collision with the seedling N is reduced so that the seedling N is not damaged. Front cup 44F
The pivot shaft 79F is provided with a front actuation member 58F, the rear cup 44R is provided with a rear actuation member 58R, and the engagement pin 82 provided on the front actuation member 58F is provided on the rear actuation member 58R. The front operating member 58F is engaged with the engaging groove 83 and the rear operating member 58R is rotated in the opposite direction via the engaging pin 82.

A double link is provided between the front operating member 58F and the bracket 74. This double link has a first link 84 whose front end is pivotally supported by a bracket 74,
The second link 85 has a second link 85 that connects the rear portion of the first link 84 and the front operating member 58F. The first link 84 can change the connection position with the second link 85.
The length 5 is adjustable. The front and rear actuating members 58F and 58R and the first and second links 84 and 85 constitute an opening actuating means 59.
Controls the postures of the actuating members 58 (front-rear actuating members 58F, 58R) that move up and down together with the elevating body 56 in accordance with the ascending / descending position to cause the planting body 44 to open and close.

In FIGS. 1 to 3, reference numeral 87 is a detection switch for detecting that the planted body 44 has reached the upper limit position. The detection switch 87 is provided on the movable frame 26B side and is operated by an operation piece 88 provided on the crankshaft 68. . Reference numeral 89 denotes a braking means provided between the crankshaft 68 and the movable frame 26B. In FIGS. 8 to 14, reference numeral 91 denotes a scraper means, which is composed of a support 92 fixed to the movable frame 26B and two scrapers 93 and 94 formed of an elastic plate such as rubber.

The scraper 93 is fixed to the front portion of the support body 92 via a bracket 95 and is fixed. When the planting body 44 descends, the scraper 93 makes sliding contact with the front surface of the front cup 44F to remove adhered soil, mud and the like. Scrape. The scraper 94 is the support 9
2 is attached to an L-shaped mounting member 97 which is pivotally supported on the support shaft 96 through a supporting shaft 96. The mounting member 97 is rotated clockwise in FIG. 8 by a spring 98A and a spring 98B fitted to the supporting shaft 96. It is biased, and the stopper 99 abuts against the contact 100, whereby the stopper 99 is set and held at the initial position in FIG.

The scraper 94, which is held in the initial position, descends from the rear cup 4 of the planting body 44.
When the planting body 44 rises from the lower limit position, it is introduced into the planting body 44 while resisting the springs 98A and 98B, and the front and rear cups 44
The attached soil is scraped off by sliding contact with the inner surfaces of F and 44R. Figure 15
9 shows a modified example of the scraper means 91. A support shaft 96 is provided on a bracket 101 protruding upward from the movable frame 26B, and a mounting member 97 having a scraper 94 attached thereto is supported on the support shaft 96 in a hanging state. , Is urged counterclockwise by the spring 98A.

In the creper means 91 of this modified example, after the inner surface of the planting body 44 is slid off, it comes out from the lower end of the planting body 44, and at the same time, the stopper 99 comes into contact with 100 by the urging force of the spring 98A. It will move backwards and upwards. After this, by moving upward, the scraper 94 becomes higher by the height H. By raising the scraper 94 by the height H, when the planter 44 rises from the lower limit position and the scraper 94 enters the inside thereof (the same state as in FIG. 12), the scraper 94 is caught with the upper end of the rear cup 44R. Will not occur and the planting body 4 with a short stroke
It is possible to remove the scraper 94 from No. 4 and reduce the height of the running body 2 to facilitate seedling supply, or the scraper 94 enters the planting body 44 at a high position so that it can handle long seedlings. Moreover, the height of the upper end of the planted body 44 can be increased (the vertical length can be increased).

Next, the orbital movement of the planted body 44 by the planting drive mechanism 51 will be described with reference to FIGS. The transplanter 1 is arranged in a state in which the traveling body 2 straddles the ridge R, and drives the planting section 27 and the seedling supply section 28 while traveling. The planting body 44 is stopped in the state shown in FIG. 6 (the scraper 94 is removed from the state shown by the alternate long and short dash line in FIGS. 1 and 4), and the drive arm 57 is rotated clockwise from this state.
The ascending track U is further ascended to the upper limit position shown in FIG.

The ascending track U from the stop position to the upper limit position is tilted forward, and is substantially along the posture of the claw 35A of the seedling extractor 35 which has moved along the track K and reached above the planter 44. , Seedling N released from the nails 35A, the front cup 44F
Is placed along the front wall of the rear cup as much as possible, and the rear cup 44R
It is designed to collide with the rear wall at an angle as small as possible. Although the planting body 44 receives the seedling N while rising to the upper limit position, it may be stopped and received at the upper limit position.
When the planting body 44 descends from the upper limit position where the upper link 54 and the drive arm 57 overlap, the upper part of the descending track D is slightly behind the ascending track U, and the track intersection P
After that, the vehicle moves to the front side of the ascending track U and descends in the order of FIGS. At this time, the scraper 94 scrapes off the attached soil on the rear surface of the plant 44, and further descends in the order of FIGS. 10 and 11, and the scraper 93 scrapes off the attached soil on the front surface of the plant 44.

When the planting body 44 descends on the descending track D,
As shown by a two-dot chain line and a solid line in FIG.
Is above the lifting body 56, and the pin 75 is the pins 73, 7
It is above the center line connecting 8 and the base link 52 and the lower link 55 are bent upward in a side view in a chevron-like shape, which allows the planting body 44 to move beyond the ascending track U. Move the front side. From the middle of this descent, the lower end of the planting body 44 pierces the ridge R, and the foundation link 52 and the operating member 5
8 approaches the horizontal state (maximum stretched state) to move the planting body 44 rearward with respect to the movable frame 26B, whereas the first and second links 84, 85 of the opening actuating means 59 are stretched. Since it does not exist, the front actuating member 58F is swung, and the rear actuating member 58R is also swung via the engagement pin 82, the planting body 44 is opened to form a planting hole in the ridge R, and the planting hole is conveyed to the planting hole. Supplied seedlings N are dropped and supplied.

The planted body 44 makes a U-turn from descending to ascending at the lower limit position shown by the solid line in FIGS.
The open state is maintained until 2 and the lower link 55 pass the straight line state so that the seedling N planted in the ridge R is not pinched by the closing operation. Since the traveling body 2 is moving forward while the planting body 44 makes a U-turn, the U
The planted body 44 does not form a character-shaped track, and the rush position and the disengaged position with respect to the ridge R are substantially the same or close to each other, and the planted body 44 moves up without breaking the ridge R.

The ascending track U extends upward on the rear side of the descending track D and transitions from the track intersection P to the front side. It is a substantially 8-shaped and flat shape, and the track has an extremely short front-rear dimension as compared with an elliptical track. In FIGS. 13 and 14, after the implant 44 has moved to the ascending stroke, the implant 44
Is gradually fitted into the scraper 94 from the upper part, and scrapes up the mud adhered inside as it rises. Then, when the planting body 44 reaches the track intersection P or the front and rear thereof, the scraper 94 comes out from the lower end of the planting body 44, and the planting body 44 is in the closed state.

The planting drive mechanism 51 includes a basic link 52.
Length or swing direction, length of swing body 53, vertical link 5
By changing the lengths and length ratios of 4, 55, the length of the protrusion 54A, the length of the drive arm 57, and the like, the curvatures of the ascending orbit U and the ascending orbit D, which are approximately eight-shaped, are changed. Or
The position of the orbital intersection P can be changed, and the front and rear position intervals of the planting bodies 44 at the upper and lower parts of both motion trajectories U and D can be set appropriately, and the inter-plant distance can be made sufficiently shorter than that of the prior art. Therefore, the transplant work can be performed without breaking the ridge R.

The present invention is not limited to the above embodiment, but can be variously modified. For example,
The upper link 54 may be formed in a side view connecting the eccentric shaft 72 and the pins 76 and 77 to eliminate the need for the protrusion 54A. Alternatively, the lower part may be a beak-shaped member that can be opened and closed. Alternatively, the basic link 52 may be formed as a single piece, and the swing body 53 may be guided by the vertical movement guide member.

[0039]

According to the present invention described in detail above, the planting body 4
No. 4 orbital motion component in the front-back direction is reduced, and the ridge R
The detachment position with respect to can be brought closer to the entry position, and even if the distance between the stocks is short, transplanting work can be performed without breaking the ridge R.

[Brief description of drawings]

FIG. 1 is a side view of essential parts showing an embodiment of the present invention.

FIG. 2 is a rear view of the same section.

FIG. 3 is a cross-sectional plan view of the same portion.

FIG. 4 is a diagram showing a movement of a planting drive mechanism when the planting body is descending.

FIG. 5 is a diagram showing the movement of the planting drive mechanism when the planting body is raised.

FIG. 6 is a side view showing a state before delivering the seedlings from the seedling supplying section to the planting section.

FIG. 7 is a side view showing a state after the seedlings are delivered from the seedling supply unit to the planting unit.

FIG. 8 is a side view showing a state immediately after the start of descent of the plant.

FIG. 9 is a side view showing a state where the planting body is being lowered.

FIG. 10 is a side view showing a state where the planting body is being further lowered.

FIG. 11 is a side view showing a state in which the plant with attached body has been pierced into the ridge.

FIG. 12 is a side view showing a seedling planting state in which the plantlet is opened in the ridge at the lower limit position.

FIG. 13 is a side view showing a stroke in which the planting body rises while maintaining an open state.

FIG. 14 is a side view showing a state where the planting body is being raised.

FIG. 15 is a side view showing a modified example of the scraper.

FIG. 16 is a side view showing the entire transplanter.

FIG. 17 is a plan view showing the entire transplanter.

[Explanation of symbols]

1 transplanter 2 running bodies 3 Transplantation device 26 transplantation frame 27 Planting Department 28 Seedling Supply Department 44 Plant 51 Planting drive mechanism 52 Basic links 53 Oscillator 54 Top link 55 Down link 56 Lifting body 57 Drive arm 58 Actuating member 59 Opening means 60 linking means

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Claims (3)

(57) [Claims] 1. A traveling body that travels across a ridge, comprising a planting section and a seedling supply section, wherein the planting section receives a seedling supplied from the seedling supply section and transplants it into the ridge. It has a planting drive mechanism that raises and lowers this planting body from a position where seedlings are supplied from a seedling supply unit to a position where it enters a ridge for transplanting the seedlings, and the planting drive mechanism pivots to the traveling body. An oscillating body is provided at the tip of the supported basic link, and an elevating body is provided at the tips of the upper and lower links pivotally supported by the oscillating body. A planter of a transplanter, characterized in that it is provided on a traveling body above a basic link, and the drive arm and the upper link are connected to each other so that the upper link is rocked up and down while the rocker is raised and lowered by the rotation of the drive arm. Attached device. 2. A traveling body that travels across a ridge, comprising a planting section and a seedling supply section, wherein the planting section receives a seedling supplied from the seedling supply section and transplants it into the ridge. It has a planting drive mechanism that moves this planting body up and down to a position where it projects into a ridge for transplanting seedlings from a seedling supply unit, and the planting drive mechanism is substantially in the running body. An oscillating body is provided at the tips of two substantially parallel base links which are pivotally supported so as to be swingable in the vertical direction and arranged vertically, and a drive arm which is rotationally driven is provided on the traveling body above the base link. An elevating body supporting the planted body is provided at the tip of the lower link pivotally supported by the rocking body,
An upper link having one end connected to a lifting body is arranged above the lower link, the other end of the upper link is connected to a drive arm, and the midway portion is connected to a rocker away from the connection position of the basic link, An implanting device for a transplanter, wherein an up-down link is rocked up and down while the rocker is raised and lowered by the rotation of a drive arm. 3. A traveling body that travels across a ridge, comprising a planting section and a seedling supply section, wherein the planting section receives a seedling supplied from the seedling supply section and transplants it into the ridge. It has a planting drive mechanism that raises and lowers this planting body from a position where seedlings are supplied from a seedling supply unit to a position where it is projected into a ridge for transplanting, and the planting drive mechanism rotates on a traveling body. A freely provided drive arm, two substantially parallel base links supported by the traveling body to be swingable in a substantially vertical direction, a swing body provided at the tip of the base link, and a base portion at the tip of the drive arm. And an upper link connecting the middle part above the basic link connection position of the rocking body, an elevating body that is provided at the tip of the upper link and supports the plant, and the rocking body and the elevating body. Lower link for connecting the plant, an operating member for opening the plant at the ridge entry position, and the plant Planting apparatus transplanter, characterized in that it comprises an open operating means for causing the open operation to the actuating member when came to ridge rush position.