JP3464819B2 - Seedling 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 seedling transplanter structure for transplanting seedlings for crops such as vegetables into a plurality of rows along a ridge of a field.

[0002]

2. Description of the Related Art A seedling transplanter equipped with a conventionally known seedling planting apparatus is used for transplanting seedlings along a plurality of rows in a ridge of a field.
It is conceivable to install multiple seedling planting devices in parallel in the width direction of the ridge on the traveling machine, but this requires power transmission to all seedling planting devices at once, and the entire seedling transplanter such as the engine is large. There is a problem of becoming.

Therefore, as a structure for planting seedlings in a plurality of rows by a seedling transplanter equipped with one seedling planting device, there has been proposed by the applicant in Japanese Patent Application No. 4-35972. This seedling transplanter is equipped with a left running wheel that is mounted on the traveling body with respect to the center line of the transplant cup that holds the seedlings to be transplanted at the tip of the vertically swinging arm of the seedling planting device mounted on the traveling body. The left and right traveling wheels can be mounted at different positions with respect to the axle so that the distance to the right traveling wheel and the distance to the right traveling wheel are different.

[0004]

However, according to this structure, when the seedlings are transplanted along the plural ridges in the field ridges, in order to change the interval between the sprouting ridges, the heavy traveling machine body is temporarily lifted. It is necessary to change the mounting positions of the left and right traveling wheels with respect to the axle, and there is a problem that handling is extremely troublesome.

Further, in the case where the transplanting cup of the seedling planting device is provided so as to be deviated to the left and right with respect to the left and right center line of the traveling machine body, the traveling machine body traveling along the ridge is reversed in the forward and backward directions. Depending on the direction, multiple-row planting work is possible, but the seedling transplanter must be moved back and forth along the ridges, and the time required for planting seedlings becomes long, resulting in poor work efficiency. . Furthermore, when planting seedlings in multiple rows, the spacing between the left and right ridges (row spacing) varies, and the spacing between the seedlings along the traveling direction of the vehicle (interval spacing) varies. There was a problem that seedling transplanting work that would improve the growth of all seedlings could not be realized.

The present invention has been made to solve these problems, and an object of the present invention is to provide a seedling transplanter capable of improving the work efficiency of transplanting seedlings into a plurality of rows on a ridge in a field. It is what

[0007]

In order to achieve the above object, the invention as set forth in claim 1 is directed to a traveling machine body which is self-propelled by straddling a ridge with left and right traveling wheels, an engine, a mission case, and a seedling planting. In a seedling transplanter comprising a device and a seedling feeding device for feeding pot seedlings arranged in a matrix in a seedling tray, the seedling planting device is used for seedlings to be transplanted at the tip of a vertical swing arm. A transplantation mechanism comprising a transplanting cup or the like for holding and transplanting into a field, and a transfer mechanism comprising a seedling take-out claw or the like for transferring pot seedlings from the seedling supply device to the transplantation cup, When the transplantation cup is located directly below the transfer mechanism in the raised position and is lowered, the mechanism is swung left and right with respect to the traveling body so as to be displaced to the left and right positions of the ridges with respect to the traveling direction of the traveling body. It is those attached to the function.

According to a second aspect of the present invention, in the seedling transplanting machine according to the first aspect, a plurality of transplanting points are provided at substantially equal intervals between the left and right positions of the ridge with respect to the traveling direction of the traveling machine body. is formed, and as strains distance along the traveling direction of the vehicle body in Kakujo are substantially equal, it is characterized in that setting the timing of the lifting and lowering and lateral swing motion of the graft mechanism.

According to a third aspect of the present invention, an engine, a mission case, a seedling planting device, and pots arranged in a matrix on a seedling tray are provided in a traveling machine body that runs on its own by straddling the ridges with left and right traveling wheels. In a seedling transplanter comprising a seedling supply device for supplying seedlings, the seedling planting device holds a seedling to be transplanted at the tip of an up-and-down swing arm, and a transplant cup or the like for transplanting into a field. And a transfer mechanism for transferring pot seedlings from the seedling supply device to the transplanting cup, such as a seedling take-out claw, and the transfer mechanism is reciprocated left and right by a screw shaft from the mission case. And the implant cup is located directly below the inheritance mechanism in the raised position.
When descending, it is configured to be elevated and lowered so as to deviate to the left and right positions of the ridges with respect to the traveling direction of the traveling machine body.

[0010]

EXAMPLES Next, examples embodying the present invention will be described. 1 is a schematic side view of the seedling transplanter, FIG. 2 is a schematic plan view of the seedling transplanter, FIG. 3 is a side view of a main part of the transplantation mechanism, and FIG. 4 is a plan sectional view of the main part of the transplantation mechanism. The front frame 1a of the traveling machine body is equipped with an engine 18, a transmission case 17 having a built-in speed change mechanism, front traveling wheels 4, 4 and rear traveling wheels 5, 5 arranged on both left and right sides via an elevating mechanism, It is configured to run across the ridges 7 of the field from side to side.

The lifting mechanism is constructed as follows. That is, in the middle of the arm 11 in the middle of the rotating shaft 9 that is rotatably supported by the bearing portion 8 at the front portion of the traveling machine body 1 and extends left and right,
The piston rod of the hydraulic cylinder 10 for raising and lowering is connected to be rotatable. Then, the arms 12 fixed to the left and right ends of the rotating shaft 9 are extended to the rear of the traveling machine body 1, and the front traveling wheels 4 are attached to the arms 12.

On the other hand, the base ends of the swing cases 15 of the rear traveling wheels 5 are mounted on the axles 13 protruding from the left and right sides of the mission case 17 so as to be vertically rotatable, and the power transmission mechanism in each swing case 15 is used. The rear traveling wheels 5 are driven to rotate. Further, the base end of each swing case 15 and the rotating shaft 9 are rotatably connected via a link mechanism 16.

As a result, when the piston rod of the hydraulic cylinder 10 is retracted, the front traveling wheel 4 is moved downward with respect to the traveling machine body 1 via the rotating shaft 9 and the arm 12, and similarly, the rotating shaft 9 and the link. The rear traveling wheels 5 are moved down via the mechanism 16 and the swing case 15 to raise the traveling machine body 1 with respect to the ground (enlarge the ground height). On the contrary, when the piston rod of the hydraulic cylinder 10 is projected, the front traveling wheels 4 and the rear traveling wheels 5 are simultaneously raised with respect to the traveling machine body 1, and the traveling machine body 1 is lowered with respect to the ground.

The traveling machine body 1 is provided with a handle 19 extending rearward, and the seedling supply table 20 is arranged so as to be capable of reciprocating left and right across the pair of left and right support rods 19a, 19a of the handle 19. The apparatus 3 is provided and the seedling mounting table 20 is configured to reciprocate left and right via the lateral feed mechanism 21. The seedling mounting table 20 has a seedling pot portion 27a arranged in a matrix in front, rear, left and right in the traveling direction. The seedling tray 27 provided in the shape of a seed is placed, and the vertical feeding mechanism 22 provided on the seedling placing table 20 moves the seedling pot portion 27a one pitch at a time in the forward direction of the traveling machine body 1 at the end of the transverse feed. It is configured such that it is intermittently fed vertically.

In the rear frame 1b of the traveling machine body 1 which is horizontally rotatable with respect to the front frame 1a, a PTO case 14 having a built-in power transmission mechanism and a seedling planting device 2 are provided.
The transplantation mechanism 30 in FIG. And the universal joint shaft 2 from the mission case 17 to the PTO case 14
Power is transmitted through the PTO case 14 to the PT.
Power is transmitted to the transplantation mechanism 30 described later via the O-axis 23.

As shown in FIG. 2, the seedling planting device 2 has a swinging arm 31 that swings up and down, and a potting seedling to be transplanted, which is held at the tip of the swinging arm 31 for transplanting into a field. A transplanting mechanism 30 including a cup 32 and the seedling removing claw 6 for transferring from the seedling pot portion 27a of the seedling tray 27 in the seedling feeding device 3 to the pot seedling transplanting cup 32.
And a transfer mechanism 29 composed of 0, etc., and transmits power to the seedling supply device 3 and the transfer mechanism 29 through a transmission path from the mission case 17 through a plurality of chains 64 to 66 wound around a chain sprocket. To be done.

In the first embodiment shown in FIGS. 2 and 5, the transplanting mechanism 30 is horizontally rotatable (swings left and right) so that a plurality of seedlings can be planted in the width direction of the ridge 7. Indicates. The PTO case 14 with respect to the front frame 1a
The rear frame 1b on which is mounted is mounted via a pivot shaft 55 and a bearing boss 56 so as to be horizontally rotatable left and right. From the transmission case 17 to the PTO case 23, the universal joint shaft 2
Power is transmitted via 4. As a structure for rotating the rear frame 1b to the left and right with respect to the front frame 1a, as shown in FIG. 5, the pivot shaft 55 is rotated by a forward / reverse rotatable drive motor 25 provided in the front frame 1a. To move. A gear 57 is fixed to the pivot shaft 55, and the gear 57 is meshed with an internal tooth rack 58 provided in the rear frame 1b and having an arcuate shape in plan view. The drive motor 25 includes the pivot shaft 5
There is provided a rotary encoder 26 capable of detecting the rotation angle of 5 and the rotation direction thereof.

Next, the structure of the transplantation mechanism 30 of the seedling planting device 2 will be described with reference to FIGS. The PTO shaft 23 as an output shaft protruding to the side surface of the PTO case 14.
The proximal chain sprockets 35 in the turning case 34 of the transplant mechanism 30 are attached to both ends of the turning case 34.
The chain sprocket 37 and the chain sprocket 35 fitted to the rotary shaft 36 on the free end side of the chain 3
Wrap 8 to transmit power.

A rotary case 40 is rotatably fitted to one outer surface of the rotating case 34 on the free end side, and a sun gear 39 is fixedly provided concentrically with the rotary shaft 36. An intermediate gear 41 meshing with 39 and a planetary gear 42 meshing with it are rotatably supported in a rotary case 40. In addition, chain sprocket 3
A friction clutch 43 is provided between the rotary shaft 36 and the rotary shaft 7 to prevent the rotary shaft 36 from slipping when power is overloaded.

A spindle 44 to which the planetary gear 42 is attached
The crank arm 45 is fixed to the crank arm 4 and
A tip shaft 46 of No. 5 is rotatably attached to a middle part of the swing arm 31. A guide roller 47 at the base end of the swing arm 31
Is vertically slidably fitted to a guide rail 48 that is erected so as to be substantially vertical to the ground. The transplantation cup 32 is composed of a pair of cup bodies 32a and 32b, which is a substantially conical one that is constricted downward, and is divided into front and rear halves. The rotation support shaft 4 is fixed to the upper ends of the cup bodies 32a and 32b.
9a and 49b are rotatably supported by a support plate 50 protruding from one side of the swing arm 31, and are formed in a side view X-shape in which two link pieces are pivotally connected by pins. Both rotation support shafts 49a and 49b are configured to rotate in opposite directions via the link mechanism 51 of
A pair of cup bodies 32a and 32b are urged by a spring 52 in the direction in which the lower ends of the cup bodies 32a and 32b are always closed. The base end of the push rod 53 connected to the link mechanism 51 is supported so as to be movable back and forth with respect to the swing arm 31, and the base end of the push rod 53 is attached to the tip shaft 46 of the crank arm 45. It is provided so as to be in constant contact with the cam 54 that fits and rotates integrally.

With this configuration, when the rotary case 40 is rotated in the direction of arrow A via the chain sprockets 35, 37 and the rotary shaft 36 by the rotation of the PTO shaft 23, the sun gear 39, the intermediate gear 41, and the planetary gear 42 are rotated. The crank arm 45 rotates in the direction of arrow B by the meshing rotation of the swing arm 31 connected to the crank arm 45.
Moves up and down along the guide rail 48 while swinging back and forth around the position of the guide roller 47.
Moves up and down along the locus 55 (only a part of the upper side is shown) in FIG. 4, and moves from the front position of the seedling tray 27 to the ridge 7. In addition, the transplantation cup 32 has a pair of cups 32a and 32b whose upper ends are closed at their lower ends. Therefore, even if a pot seedling (not shown) to be transplanted is inserted into the cup, the posture is maintained. it can. On the other hand, transplant cup 32
Is lowered and the lower ends of the cup bodies 32a, 32b pierce the soil surface of the ridge 7, the push rod 53 is pushed out by the cam 54, and both rotation support shafts 49a, 49a are pushed through the link mechanism 51.
49b are rotated in the opposite directions to each other, and the cup bodies 32a,
Since the lower end of 32b opens, the pot seedling N inside can be transplanted to the ridge 7.

Next, with reference to FIGS. 2 and 6 to 10, the structure of the inheritance mechanism 29 including the seedling take-out claws 60 and the like will be described. In this inheritance mechanism 29, a support plate 68 is fixed to a bracket 67 fixed to the traveling machine body 1 so that a pair of left and right seedling take-out claws 60, 60 described later are arranged at the left and right centers of the traveling machine body 1. On the inner circumference of the sun gear 70 fixed to 68, the chain sprocket 6
5, an input shaft 71 to which power is transmitted is rotatably fitted, and the other end of the input shaft 71 is fixed to a rotary case 72 so as to rotate integrally.

In the rotary case 72, the sun gear 70
An intermediate gear 73 meshing with the crankshaft 74 and a planetary gear 75 fixed to the crankshaft 74 and meshing with the intermediate gear 73 are internally provided, and a crank arm 76 mounted on the crankshaft 74 is mounted.
A pair of left and right seedling picking claws 60, 60 is attached to one end of a cam shaft 77 protruding from the tip of the seedling picking arm 78.
Is rotatably fitted. The guide shaft 79 protruding from the other end of the seedling picking arm 78 has a guide groove 81 of a substantially arc shape in the guide plate 80 fixed in parallel with the support plate 68.
Is slidably fitted to the pair of seedling pick-up claws 60, 60 by one rotation of the rotary case 72 around the input shaft 71 from the posture shown in FIG. 6 to the posture shown in FIG.
Trajectory 82 of returning to the original position after the seedling take-out claw is stuck in the seedling pot portion 27a of No. 7 and holds the pot seedling (FIG. 6).
(See) is configured to follow.

Further, the pair of left and right picking nails 60, 6
0 base end attachment pieces 83, 83 are L-shaped pivots 84, 84.
Each of the pivots 84 is rotatably attached to the eyeglass-shaped mounting portion 78a of the seedling picking arm 78, and the pair of left and right seedling picking claws 60 is connected by a spring 85 connecting the left and right mounting pieces 83, 83. , 60 are always urged in the closing direction.

A cam plate 86 is fixed to the cam shaft 77,
On the front and back surfaces of the wide width of the cam plate 86, arc-shaped end face cam portions 87, 87 are provided so as to project in a section of a rotation angle along the circumferential direction, and the bases of the pair of left and right seedling picking claws 60, 60 are provided. When the abutting pieces 88, 88 of a spherical shape or the like projecting from the end mounting pieces 83, 83 so as to face each other ride on the end surface cam portions 87, 87 and come into contact therewith, the tips of both seedling picking claws 60, 60 are the springs. It is designed to open against the force of 85.

Further, the pin 8 of the seedling take-out arm 78
The base ends of a pair of rod-shaped push-out tools 91, 91 are rotatably mounted on a mounting plate 90 rotatable around nine positions, and the tip end annular portion 91a of each push-out tool 91 has the above-mentioned chopstick shape. Both tip annular portions 91a are moved toward the tip of the seedling picking claws 60, 60 by a spring 93 slidably fitted to the seedling picking claws 60, 60 and mounted on a mounting plate 90 and a seedling picking arm 78. Is urged to do so. The roller 92 attached to the mounting plate 90 is always in contact with the peripheral surface (peripheral cam portion) of the cam plate 86, and the roller 92 is located in the recess 86a in the predetermined rotation section of the cam plate 86. When positioned (seedling picking claw 60,
When the pot seedling pierced and pinched by 60 is located above the transplanting cup 32), the pot seedling is pushed out by the tip annular portions 91a of both the extruding tools 91, and the pot seedling is picked up from the seedling take-out claws 60, 60. Is configured to be discharged (withdrawn).

Next, the seedling feeding device 3 will be described with reference to FIGS. 2, 6 and 11 to 13. Seedling stand 20
As shown in FIG. 11, a frame frame 100 having a substantially rectangular shape in a plan view, and a vertical feed case 101 having a vertical feed transmission unit as a vertical feed mechanism 22 arranged on one side of the frame frame 100, A transport chain 102 for vertically feeding the seedling tray 27, and large and small chain sprockets 103, 10
4 and the guide frame 105 and the like arranged so that the empty seedling tray 27 is guided toward the rear end of the handle 19.

The front and rear guide rollers 108 and the vertical guide rollers 109 mounted on the frame 100 of the seedling mounting table 20 and the like are attached to the left and right support rods 19 of the handle 19.
The seedling mounting table 20 is mounted so as to be movable in the left and right direction without rattling up and down and front and back by contacting with a pair of front and rear U-shaped guide rails 106 and 107 fixed to a, 19a and the like. .

The seedling tray 27 is made of a flexible soft synthetic resin material, and can be curved along the circumference of a large-diameter chain sprocket 103 when it is mounted on the transport chain 102 and transported. There is. The pair of left and right transfer chains 102, 102 is a large-diameter chain sprocket 103 and a frame 100 mounted on a vertical feed drive shaft 110 driven via a power transmission system in a vertical feed case 101.
It is wound around a small diameter chain sprocket 104 on a driven shaft 111 that is rotatably mounted on. The pair of left and right transfer chains 102, 102 has an appropriate pitch P1.
The laterally-engaged engaging pins 112 are provided so as to project, and the left and right engaging pins 110 engage with the lower surface side of the continuous portion of the seedling pot portions 27a that are lined up in the transport front-rear direction in the seedling tray 27 to ensure the engagement. It is conveyed in the direction of arrow C in FIG. A guide piece 113 for guiding the seedling tray 27 to be curved along the outer circumference of the large diameter chain sprocket 103 is provided on the frame 100 and the like.

Transmission case 1 in the transverse feed mechanism 21
The reciprocating feed screw portion 1 is attached to the lateral feed shaft 115 protruding from
15a is formed, and the boat-shaped keyed feed block 116 and seedling mounting table 20 that are screwed into the reciprocating feed screw portion 115a are formed.
Engaging piece 1 such as an engaging bolt protruding from the frame in
17 and the seedling mounting table 20 is configured to reciprocate in the lateral direction of the seedling tray 27 (see FIG. 13). On the other hand, the vertical feed shaft 118 protruding from the transmission case 114 intermittently rotates at the horizontal feed end position of the seedling mounting table 20, and a pair of vertical feed shafts 118 are provided on the vertical feed shaft 118 at a distance of the horizontal feed distance. The kick claws 119 and 119 kick a driven cam (not shown) provided in the vertical feed case 101 to rotate the driven cam.
The vertical feed drive shaft 110 is intermittently rotated via a transmission portion in the vertical feed case 101 so that the seedling pot portion 27a is intermittently vertically fed by a constant pitch P2.

Next, when the transplantation cup 32 of the transplantation mechanism 30 is located directly below the receiving mechanism 29 when the transplantation cup 32 is in the raised position, and when the transplantation cup 32 is descended, the transplantation mechanism 30 is located at the right and left positions of the ridge 7 with respect to the traveling direction of the traveling machine body 1. As shown in FIG. 15, the left and right swinging motions are performed so as to deviate, and as shown in FIG. 15, three implantation points are formed at approximately equal distances H1 at the left and right positions of the ridge with respect to the traveling direction of the traveling machine body. and strains distance H2, along the traveling direction of the vehicle body in Kakujo so are substantially equal, the description will be given of a configuration for setting the timing of the lifting and lowering and lateral swing motion of the implant mechanism 30, FIG. 14 As shown, the control means 59 such as a microcomputer has a read-only memory (ROM) which stores a control program (not shown), and a read / write function for storing various data and detection values described later. And a drive circuit 25a of a drive motor 25 for rotating the rear frame 1b to the left and right are connected to the output interface, and the input interface connects the rear frame 1b to the front frame 1a. The pivot shaft 55 as a rotation angle
The rotary encoder 26 capable of detecting the rotation angle and the rotation direction thereof and the limit switches L1 and L2 for detecting the upper and lower limit positions of the transplanting cup 32 are connected.

With this structure, first, the rear frame 1b is linearly parallel to the traveling direction of the traveling body 1 with respect to the front frame 1a, while the traveling body 1 is moved forward, while the seedling supplying device 3 and the seedling planting device are being moved forward. When 2 is operated, the seedling placing table 20 in the seedling feeding device 3 moves to the right or left in the traveling direction, and in synchronization with this movement, the pair of seedling taking claws 60, 60 in the inheritance mechanism 29 causes the seedling tray 27 to move. The pot seedlings are sandwiched and extracted from the seedling pot portion 27a, and the pot seedlings are discharged to the transplanting cup 32 at the upper end position of the locus 55 of FIG. Next, the swing arm 3
1 is rotated to plant pot seedlings in the ridge 7 at a position S1 in FIG. 15 in the vicinity of the lower end of the descending stroke of the transplantation cup 32. Next, in order to transplant the seedlings to the right row of FIG.
The transplanting cup 32 is raised, and the potting seedlings are inherited by the transplanting cup 32 in the raised position by the inheriting mechanism 29 located right above. Until this time, the rear frame 1b is not rotated. Next, in synchronization with the descending stroke of the transplantation cup 32, the drive motor 25 is rotated forward, the rear end side of the rear frame 1b is swung right by the angle θ in FIG. 14, and then the drive motor 25 is rotated reversely. By switching as described above, the rear end side of the rear frame 1b is slightly swung to the left, and pot seedlings are transplanted to the location of S2 in FIG. 15 (right row). Next, while continuing the reverse rotation of the drive motor 25, the transplantation cup 32 is lifted up, and at the time when the rear frame 1b and the front frame 1a are aligned with each other, the transfer mechanism 29 and the transplantation cup 29 are planarly viewed. The timing is adjusted so that 32 and the right and left coincide with each other. With respect to the transplanting cup 32 in this raised position, the seedling tray 27 of the seedling placing table 20 is transferred by the inheritance mechanism 29 as described above.
The pot seedlings extracted from are released. Next, pot seedlings are planted in the ridges 7 at the location of S3 (left row) in FIG. 15 near the lower end of the descending stroke of the transplanting cup 32. After the transplantation, the drive motor 2 is operated during the ascending stroke of the transplantation cup 32.
5 is rotated so as to rotate forward, and the drive motor is stopped at a position where the rear frame 1b is aligned with the front frame 1a. Here, as described above, pot seedlings are transplanted to the central row S4. The seedlings can be transplanted to three rows by repeating the operation of carrying out the work (see FIG. 15 and FIG. 16).

The forward and reverse rotations of these drive motors 25 and their required rotation angles may be determined by the detection values of the rotary encoder 26. In the above-mentioned embodiment, the two-row planting work can be executed by controlling so as to eliminate the transplanting work of the central strip. Figure 1
7 shows a second embodiment in which only the transplanting mechanism 30 in the seedling planting device 2 is configured to reciprocate left and right, in which the engine 18 and the mission case 17 are mounted on the traveling body 1.
The spline-shaped output shaft 121 is projected from one side surface of the transmission case 17, while the screw shaft 122 is coaxially projected from the other side surface of the transmission case 17, and is supported by brackets 123a attached to the axle case 123, respectively. The base end of the one support arm 124 is the screw shaft 122.
Screw it on.

A transmission case 125 is fitted on the splined output shaft 121 so as to be movable left and right along the axis thereof.
Similarly, a chain sprocket 126 that is also slidable along the output shaft 122 is built in, and power is transmitted to the PTO shaft 23 rotatably supported at the tip of the transmission case 125 via the chain sprocket 127 and the chain 128. To do. The other end of the PTO shaft 23 is rotatably supported by the support arm 124. Then, power is transmitted from the PTO shaft 23 to the rotating case 34 as in the above-described embodiment. The transplantation mechanism 30 is configured to be movable to the left and right in the traveling direction of the traveling machine body 1 via a guide rail (not shown). The other configurations of the transplantation mechanism 30, the inheritance mechanism 29, and the seedling supply device 3 are the same as those in the above-described embodiment, and thus detailed description and illustration thereof are omitted. With the configuration of the second embodiment, when the screw shaft 122 is normally or reversely rotated through the transmission mechanism in the mission case 17, the support arm 124 is moved left and right, and thus the transplantation mechanism 30 can be moved in the left and right direction. Therefore, a state in which the potting cup 32 is made to approach directly below the potting seedling 32 in the ascending position to the potting mechanism 32 (not shown in FIG. 17) located at the center of the left and right, and then the screw shaft 122 is not operated. When the transplanting cup 32 is lowered with, the seedlings can be planted on the left and right central strips of the ridge 7 in the same manner as described above, and the screw shaft 122
By lowering the transplantation cup 32 while rotating the normal rotation or the reverse rotation, seedlings can be planted on the right or left row of the ridge 7. In this embodiment as well, the traveling machine body 1 is advanced and the above-mentioned transplantation is performed. By repeating the vertical movement of the cup 32, the seedlings can be automatically transplanted over a plurality of rows at appropriate positions in the widthwise direction of the ridges 7, and the operator does not need to perform heavy labor and is extremely easy to handle. Becomes

In each of the above-mentioned embodiments, by changing the forward speed of the traveling machine body and the vertical movement speed of the transplanting cup 32, it is possible to arbitrarily change and adjust the stock distance H2 and the striation distance H1.

[0036]

As described above, claim 1
The invention described is a traveling machine that is self-propelled across the ridges by the left and right traveling wheels, an engine, a mission case, a seedling planting device, and a seedling for supplying pot seedlings arranged in a matrix on the seedling tray. In a seedling transplanter comprising a supply device, the seedling planting device, a transplantation mechanism consisting of a transplanting cup or the like for holding seedlings to be transplanted at the tip of the vertical swing arm and transplanting them in a field, The transfer mechanism comprises a seedling take-out claw or the like for transferring pot seedlings from the seedling supply device to the transplantation cup, and the transplantation mechanism is located directly below the transfer mechanism when the transplantation cup is in a raised position. When descending, it is attached to the traveling machine body so that it can swing to the left and right so as to be displaced to the left and right positions of the ridges in the traveling direction of the traveling machine body.

Therefore, while the traveling body of the seedling transplanter is advanced in one direction along the ridge, seedlings can be planted continuously in a plurality of rows in the width direction of the ridge. Compared with the case where a seedling transplanter travels back and forth to plant seedlings in multiple rows, work efficiency is significantly improved. Since only one seedling planting device and one seedling supply device are required, the weight of the seedling transplanter can be reduced and the configuration can be simplified as compared with a device having a plurality of pairs of these devices.

The invention described in claim 2 is the same as claim 1
In the invention described, a plurality of rows of transplantation points are formed at substantially equal distances between the left and right positions of the ridges with respect to the traveling direction of the traveling vehicle, and the inter-plant distance along the traveling direction of the traveling vehicle in each row. as but substantially equal, since it is obtained by setting the timing of the lifting and lowering and lateral swing motion of the implant mechanism, in addition to the same actions and effects as the invention of claim 1, in the width direction of the ridges The seedlings can be transplanted in a staggered manner, and the transplantation mechanism is operated in synchronism with the forward movement of the traveling body, so that the distance between the plants and the distance between the lines can be made uniform.

Further, in the invention as set forth in claim 3, the engine, the mission case, the seedling planting device, and the seedling tray are arranged in a matrix form on the traveling machine body which runs by itself on the left and right traveling wheels across the ridges. A seedling transplanter comprising a seedling supply device for supplying pot seedlings, wherein the seedling planting device is used for holding a seedling to be transplanted at the tip of the vertically swinging arm and transplanting it to a field. The transplantation mechanism is composed of a cup and the like, and the inheritance mechanism is composed of a seedling take-out claw for transferring pot seedlings from the seedling supply device to the transplantation cup. It is configured so as to reciprocate, and its transplantation cup is located right below the receiving mechanism in the raised position, and when descending, is displaced to the left and right positions of the ridges with respect to the traveling direction of the traveling machine body. Since those configured so as to cormorants lifting, the same operation and effect as the invention described in claim 1. In addition to this, since the transplantation mechanism is linearly moved to the left and right, the effect that the support mechanism can be made stronger than that of swinging to the left and right is also obtained.

[Brief description of drawings]

FIG. 1 is a schematic side view of a seedling transplanting machine according to a first embodiment.

FIG. 2 is a schematic plan view of the seedling transplanting machine according to the first embodiment excluding a bonnet cover and the like.

FIG. 3 is a side view of a main part of a seedling transplantation mechanism.

FIG. 4 is a plan sectional view of a main part of a seedling transplanting mechanism.

FIG. 5 is a side cross-sectional view of a left-right rotation mechanism for a front frame and a rear frame.

FIG. 6 is a side view showing a positional relationship among a transfer mechanism, a seedling supply device, and a transplant cup.

FIG. 7 is a perspective view of a main part of a transfer mechanism.

FIG. 8 is a cross-sectional view of a main part of a transfer mechanism.

FIG. 9 is an operation explanatory view of the inheritance mechanism.

FIG. 10 is a front view of a main part of a seedling taking-out nail.

FIG. 11 is a plan view of a main part of the seedling supply device.

FIG. 12 is a schematic side view of a main part of a seedling mounting table.

FIG. 13 is a plan view of an essential part of a lateral movement constituent part of the seedling table.

FIG. 14 is a functional block diagram of a control unit for rotating the rear frame to the left and right.

FIG. 15 is a plan view showing a planted state.

FIG. 16 is a front view of the same.

FIG. 17 is a schematic plan view of the transplantation mechanism of the second embodiment.

[Explanation of symbols]

1 traveling aircraft 1a front frame 1b rear frame 2 seedling planting equipment 3 seedling supply equipment 4 front running wheels 5 rear running wheels 7 ridges 15 swing case 17 mission case 20 seedling stand 21 Traverse mechanism 22 Vertical feed mechanism 23 PTO axis 24 universal joint shaft 25 drive motor 26 rotary encoder 27 Seedling tray 29 Inheritance mechanism 30 Transplant mechanism 31 swing arm 32 transplant cup 55 pivot 56 Bearing boss 57 gears 58 Internal tooth rack 59 control means 60 Seedling removal nails

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A01C 11/00-11/02 303 A01C 11/02 370-387

Claims (3)

(57) [Claims] 1. A seedling for supplying pot seedlings arranged in a matrix form to an engine, a mission case, a seedling planting device, and a seedling tray to a traveling aircraft that runs on its own with left and right traveling wheels crossing a ridge. In a seedling transplanter comprising a supply device, the seedling planting device, a transplantation mechanism consisting of a transplanting cup or the like for holding seedlings to be transplanted at the tip of the vertical swing arm and transplanting them in a field, The transfer mechanism comprises a seedling take-out claw or the like for transferring pot seedlings from the seedling supply device to the transplantation cup, and the transplantation mechanism is located directly below the transfer mechanism when the transplantation cup is in a raised position. A seedling transplanter, which is mounted so as to be able to swing left and right with respect to the traveling body so as to be displaced to the left and right positions of the ridge with respect to the traveling direction of the traveling body when descending. 2. An inter-plant distance along the traveling direction of the traveling body in each of which a plurality of transplantation points are formed in the left and right positions of the ridge with respect to the traveling direction of the traveling body at substantially equal intervals. so it substantially equal, seedling transplantation machine of claim 1, wherein the setting the timing of the lifting and lowering and lateral swing motion of the graft mechanism. 3. A seedling for supplying pot seedlings arranged in a matrix form to an engine, a mission case, a seedling planting device, and a seedling tray to a traveling body that runs by itself on left and right traveling wheels across a ridge. In a seedling transplanter comprising a supply device, the seedling planting device, a transplantation mechanism consisting of a transplanting cup or the like for holding seedlings to be transplanted at the tip of the vertical swing arm and transplanting them in a field, And a transfer mechanism for transferring pot seedlings from the seedling supply device to the transplanting cup, the transfer mechanism being configured to reciprocate left and right with a screw shaft from the mission case, and The transplantation cup is located directly below the transfer mechanism in the raised position, and when lowered, is configured to move up and down so as to be displaced to the left and right positions of the ridges with respect to the traveling direction of the traveling body. Characteristic seedling transplanter.