JP2803977B2 - Tray seedling correction mechanism 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 mechanism for correcting the position of a tray seedling of a transplanting machine for successively transplanting soiled seedlings into ridges while running.

[0002]

2. Description of the Related Art An upland transplanter for transplanting soild seedlings (potted seedlings) such as vegetables has a large number of seedling receiving trays arranged endlessly as disclosed in Japanese Patent Application Laid-Open No. 4-293407. Then, the seedlings are intermittently transferred one pitch at a time, and the seedlings are placed on the respective seedling receiving trays, and the seedlings are transferred from the seedling receiving tray to the planting device at required positions and planted one by one. It is configured as follows.

[0003]

In the prior art, the seedlings with soil are taken out from the horizontal seedling box, and the soild seedlings are horizontally moved while standing and inserted into a seedling receiving tray. The receiving tray is moved to open the bottom at the required position and the seedlings are dropped and supplied.The seedlings can be easily supplied to the planting device. Since it is supplied, it is easy to fall over, and if it falls down, supply failure may occur.

Therefore, the soild seedlings are placed sideways (in a lying state).
It is conceived that they are placed on a seedling receiving tray.
However, it is difficult to arrange the seedlings at the proper position in the seedling receiving tray, even if it is in the horizontal orientation or the standing posture of the conventional technique, which causes a supply failure. The present invention provides a seedling receiving tray with a position setting portion for setting the position of the block soil portion of the soiled seedlings, and inclines the seedling receiving tray toward the upper side of the planting device to bring the block soil into contact with the position setting portion. An object of the present invention is to provide a tray seedling position correcting mechanism of a transplanting machine which can correct a block soil to a normal position on a seedling receiving tray before supplying the seedling to a planting device by providing a reverse tilting means.

[0005]

The concrete means for solving the problem in the present invention is to arrange a number of seedling receiving trays 71 endlessly, intermittently move them one pitch at a time, and Is held in a substantially horizontal position, and the seedlings B are placed on the seedlings B sideways, and the seedling receiving tray 71 is tilted at a required position to move the seedlings B from the seedling receiving tray 71 to the planting device 21. A transplanter designed to be delivered
The seedling receiving tray 71 is provided with a position setting unit 111 for setting the position of the block soil b. Is provided with a reverse tilting means 133 for making the abutment against the position setting section 111.

[0006]

The seedling box 51 in which the seedlings B have been raised is loaded from the insertion opening 49 of the seedling box guiding means 45, and is intermittently fed from the upper side to the lower side by one pitch via the seedling box vertical feeding mechanism 39. During intermittent feeding, one row of soiled seedlings B are pushed out onto the seedling receiving tray 71 of the seedling lateral feeding mechanism 41 by the seedling pushing mechanism 40, and the seedlings B are fed by the seedling horizontal feeding mechanism 41 one pitch at a time. It is fed and supplied to a planting device 21 provided at its delivery end and is thereby planted in the ridges 3.

When the seedling receiving tray 71 on which the seedlings B are placed reaches two pitches closer to the upper side of the planting apparatus 21, the reverse tilting means 133 operates to transfer the seedling receiving trays 71 when the seedlings B are transferred. Soiled seedling B, which has been tilted in the opposite direction to the above and moved on the seedling receiving tray 71,
Comes into contact with the position setting section 111 of the seedling receiving tray 71 and stops, and the soiled seedling B is corrected to a normal position with respect to the seedling receiving tray 71.

When the seedling receiving tray 71 reaches one pitch before the upper side of the planting device 21, the seedling detecting sensor 104 moves downward from above to check the existence of the foliage a of the soiled seedling B on the seedling receiving tray 71. If the seedling B is detected, if the seedling B is normal, the seedling receiving tray 71 is inclined and supplied to the planting cylinder 33 when the planting device 21 is reached.
Is operated to prevent the seedling receiving tray 71 from tilting, and to drop the defective seedling (defective soild seedling B) after passing through the planting cylinder 33.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 4 to 9, the transplanter 1 is a walking type having a steering handle 2 at the rear of a traveling vehicle body 3, and runs in the longitudinal direction across a ridge A covered with a multi-film D. . The traveling vehicle body 3 has an engine 5 mounted on a mount 4 at the front thereof, and is covered with a bonnet 7 having left and right spare seedling box mounts 6 on the left and right, and a transmission case 8 is fixed to the rear of the mount 4. The unit and the output unit of the engine 5 are linked by a winding transmission 9.

The power from inside the transmission case 8 is supplied to a wheel transmission shaft 10 and a PTO shaft 12 for driving a working unit 11.
The left and right ends of the wheel transmission shaft 10 support left and right drive wheels 14 via a transmission case 13 that swings up and down around the axis. The drive wheel 14 can be driven by the body. The drive wheel 14 rolls in the groove C between the ridges A.

The left and right transmission cases 13 can swing up and down around the axis of the transmission shaft 10 to adjust the relative vertical position between the drive wheels 14 and the traveling vehicle body 3. Is provided with a grounding sensor 15 via a stay, and is provided with a cylinder 16 which is operated by a detection signal of the grounding sensor 15.
Is moved up and down to adjust the height of the traveling vehicle body 3 and perform horizontal control.

The main frame 17 of the traveling vehicle body 3 is formed in a substantially L-shape in plan view and side view by a square pipe or the like, and its front portion is bent downward and is provided on one side of the mount 4 on which the engine 5 is mounted. The vehicle body 3 is fixed
The left and right sides of the steering handle 2 are disposed substantially horizontally in the front-rear direction, and the rear portion is bent to the other side.
It has been. The middle portion of the main frame 17 is located only on one side of the traveling vehicle body 3, thereby forming a space 19 between the engine 5 and the mounting portion 18.

The transplanting work section 11 has a seedling box device 20, a planting device 21, a multi-perforation device 22, and the like, and moves up and down around an axis of a power receiving shaft 23 supported on a fixed side of the transmission case 8 and the like. The movable frame 24 swings in the direction. The rear portion of the movable frame 24 is elastically and suspendedly connected to the main frame 17 by elastic support means 25. The elastic support means 25 is provided on a bracket fixed to the mounting portion 18 of the main frame 17. A top 26 pivotally supported by the bracket and a lower end loosely inserted into the top 26 and pivotally connected to the movable frame 24. The support rod 94 has an adjustable length, and the coil spring 28 is fitted over the support rod 94. By turning the handle 27, the support rod 94 is screwed into a threaded portion to adjust the length.

A pressure reduction roller (or soil covering roller) 38 provided at the rear of the movable frame 24 allows the distance between the movable frame 24 and the movable frame 24 to be adjusted via an adjusting rod 98.
The height of the movable frame 24 can be adjusted.
The movable frame 24 includes a transmission case 30 having a wrapping transmission 29 for transmitting power to the seedling box device 20, the planting device 21, and the like. The wrapping transmission 29 is linked to the PTO shaft 12.

As shown in FIG. 8, the planting device 21 is supported by a movable frame 24 via a suspension link 31 by a parallel link 32 so as to be vertically swingable.
A beak-shaped openable and closable planting cylinder 33 is provided at the end of 2, and can be moved up and down by a crank motion of a crank body 34 interlocked with a winding transmission 29. The multi-perforation device 22 is provided in front of the planting tube 33. The perforation device 22 has a gas burner that uses the gas of the propane gas cylinder 35 shown in FIGS. 6 and 7 as a fuel, and burns the multi-film covered on the ridge A at equal intervals in the ridge longitudinal direction with a gas burner to form holes. The planting cylinder 33 protrudes into this hole, and the soil seedling B is transplanted to the ridge A.

In addition, in FIG.
Reference numeral 37 denotes a pair of left and right front wheels, and 37 denotes a ridge-and-shoulder copying roller. Seedling box device 20 in transplantation work unit 11
Has a seedling box vertical feeding mechanism 39, a seedling pushing mechanism 40, a seedling lateral feeding mechanism 41, a defective seedling detecting mechanism 102, and a defective seedling eliminating mechanism 103. Is mounted via a stay 42 or the like.

The seedling box vertical feed mechanism 39 includes a pair of front and rear center guide rails 43 formed in a bow shape and a center guide rail 4.
3 is provided with seedling box guide means 45 having a pair of front and rear side guide rails 44 arranged on the front side and along the lower half. An intermediate portion in the longitudinal direction of the central guide rail 43 is a vertical guide portion 46, and upper and lower guide portions 47 and 48 which are curved to the same side vertically are coupled.

The side guide rail 44 has a trumpet-shaped insertion port 49 formed at the upper part, and an outlet 50 formed at the lower part in combination with the lower guide part 48. The outlet 50 is formed by the main frame 17 and the driving wheel 14. And is located between. The seedling box 51 is made of resin, has flexibility, and has a large number of pot portions 5 arranged vertically and horizontally.
2 is provided on the rear surface, and seedlings B with seedlings are raised in the pot portions 52. A space 54 is formed between the pot portions 52 in the vertical and horizontal directions. The seedling box 51 inserted from the insertion opening 49 as shown by the arrow in FIG. 4 is bent toward the upper guide portion 47, and is discharged from the outlet 50 through the transplantation working portion 11 while being curved and guided. 3, and is discharged to the outer side of the ridge A on one side in the traveling direction, particularly to the side of the drive wheel 14.

The pot portion 52 of the seedling box 51 is formed in a tapered cylindrical shape to facilitate extruding of the seedlings B with soil. The bottom of the pot portion 52 has an extrusion opening formed by a seedling extruding mechanism 40. The seedling box vertical feed mechanism 39 includes a pair of left and right feed claws 55 for intermittently feeding the seedling box 51 one pitch at a time in the vertical direction. The feed claws 55 are vertically adjacent to each other at the vertical guide portion 46. It enters into the space 54 between the pot portions 52 and moves down after moving down.

Each of the right and left feed claws 55 has a U-shape that holds the pot portion 52 from behind, and is provided at the tip of a support rod 56, and the base end of the support rod 56 swings through a vertical shaft support 57. The pair of front and rear swing brackets 58 are mounted on a moving bracket 58 and supported by a support frame 59 so as to be vertically swingable about a support shaft 60 having a longitudinal axis. The pair of left and right support rods 56 can swing in the front-rear direction around the shaft support 57 as shown in FIG. 9, so that the feed claws 55 enter and exit the gaps 54 by this swing. I have.

As shown in FIG. 8, a relay transmission case 62 having a built-in relay transmission mechanism 61 using cams and gears is fixed to the rear wall of the support frame 59.
The input unit 63 of the internal transmission mechanism and the above-described winding transmission 29 are linked by a vertical winding transmission 64. As shown in FIG. 4, the output portion of the relay transmission mechanism 61 is distributed to a seedling box vertical feed drive rod 65, a seedling pushing drive rod 66, a seedling lateral feed shaft 67, and the like.

The drive rods 65 and 66 are arranged side by side and reciprocate vertically, and the shaft 67 is extended in the horizontal direction to have a drive sprocket 68. As shown in FIG. The endless chain 70 is wound around a driven sprocket 69 disposed opposite to the front and rear to form a seedling lateral feed mechanism 41 that intermittently feeds one pitch at a time.

A large number of seedling receiving trays 71 are arranged in the chain 70 at intervals in the longitudinal direction, and the seedling receiving trays 71 swing from a horizontal posture to an inclined posture around a longitudinal axis 72 shown in FIG. It is freely movable and is urged by a helical spring 73 or the like to change from a horizontal posture to an inclined posture. A guide rail 95 for holding the seedling receiving tray 71 in a horizontal position is provided on a fixed side, and a lowering portion 95A is formed at a sending end of the guide rail 95 so as to be one step lower. Arrives, the helical spring 73 forcibly changes the inclined position, and the soiled seedlings B on the seedling receiving tray 71 can be intermittently supplied to the planting cylinders 33 one by one.

The driving rod 65, the first relay link 76, the second relay link 80, and the like constitute a feed pawl driving means 74. A first relay link 76 is pivotally supported on the upper part of the rear wall of the support frame 59 via a support shaft 75 so as to be swingable in the left-right direction. An end of the drive rod 65 is attached to a short arm 76A of the first relay link 76. It is pivoted with pins with play. First
The relay link 76 integrally includes a short arm 76A and a long arm 76B, and a manual operation lever 77 is provided on the support shaft 75 in parallel with the first relay link 76. The arm 77A of the manual operation lever 77 and the long arm 76B are arranged side by side,
Both are linked by a rod 78 skewered and a coil spring 79 for buffering shown in FIG.

The support frame 59 is provided with a crank-shaped second relay link 80 that swings around the vertical axis. The second relay link 80 and the manual operation lever 77 are pivotally connected by a connecting rod 81. One arm 80A of the second relay link 80 is engaged with a notch recess 58A formed in the upper part of the swing bracket 58 with play in the left-right direction.

The other arm 80B of the second relay link 80
Is connected to one end of the interlocking link 82 swinging about the vertical axis.
The other end of the interlocking link 82 and the front support rod 56 having the feed claw 55 are connected by a second link 84, and are further arranged below the first link 83 by being overlapped therewith. The third link 85 connects one end of the interlocking link 82 to the rear support rod 56 having the feeding claw 55, and the interlocking link 82, the first to third links 83, 84, 85, etc. , That is, an opening / closing link mechanism for moving the feed claw 55 into and out of the gap 54 between the pot portions 52 adjacent in the vertical direction.

Therefore, the first movement of the driving rod 65 causes the first movement.
The manual operation lever 77 is connected to the support shaft 75 via the relay link 76.
Is converted into a left-right swinging motion about the axis of the second relay link 80 through the pushing / pulling motion of the connecting rod 81 within the range of play with the notch recess 58A of the swinging bracket 58. By being converted into a dynamic motion, the pair of support rods 56 are pivotally connected to the shaft support 57 through the opening / closing link mechanisms 82 to 85.
Swinging around the fulcrum, the feed claws 55 enter and exit the gaps 54 that are adjacent in the vertical direction.

On the other hand, the notch recess 58 of the swing bracket 58
When the second relay link 80 is caused to swing back and forth beyond the range of play with respect to A, the swing bracket 58 swings up and down around the support shaft 60, where the feed claw 55 enters the gap 54. At this time, by swinging the swing bracket 58 downward, the seedling box 51 is fed one pitch in the vertical direction, and then the feed claws 55 are retreated from the gap 54 to swing the swing bracket 58 upward. Accordingly, the seedling box 51 is ready for the next vertical feeding, so that the seedling box 51 is intermittently fed one pitch at a time in the vertical direction.

By manually operating the manual operation lever 77, the seedling box 51 is manually fed vertically one pitch at a time. This is a preparation work for loading the seedling box 51 into the insertion slot 49 and starting operation. It is useful in such cases. Seedling pushing mechanism 4
Numeral 0 is arranged in the arcuate space of the center guide rail 43 together with the feed claws 55 and the like. Pusher 8 protruding into tray 71
6 is provided.

The pushers 86 are arranged in a comb-like manner on a slider 87 as shown in FIGS. 8 and 9. The slider 87 is slidable on a slide guide 88 projecting inward from the side wall of the support frame 59. It is supported by. At both ends (front and rear) of the slider 87, a bracket 89 having a long hole 89A is provided.
Are fixed, and the engaging pieces 90 that fit into the elongated holes 89A are fixed.
A of the pair of second swing links 90 with the support frame 5
The front and rear walls 9 are each pivotally supported by a horizontal axis 90B.

On the other hand, the end of the pushing drive rod 66 is
The other link of the first swing link 91 and the lower end of the first swing link 90 are connected to one arm of the first swing link 91 pivotally supported via the horizontal shaft 91A.
It is connected by two. Accordingly, the push-pull movement of the drive rod 66 is performed via the first swing link 91 and the connecting link 92.
The power is transmitted to the swing link 90, transmitted to the slider 87 by the left and right swing of the second swing link 90, and the slider 87 reciprocates linearly on the slide guide 88, from behind the pot portion 52 via the pusher 86. One row of soiled seedlings B
Is pushed onto the seedling receiving tray 71 of the seedling lateral feeding mechanism 41, and then retreats.

Note that the seedling pushing mechanism 40 operates the pusher 86 in the pushing direction when the seedling lateral feeding mechanism 41 is in a standby state for stopping and the seedling box vertical feeding means 39 is in a standby state for stopping. I do. When the seedlings are horizontally fed by the seedling lateral feeding mechanism 41, the seedling box vertical feeding mechanism 39 feeds the seedling boxes vertically by one pitch. The seedling lateral feed mechanism 41 intermittently feeds one row of soiled seedlings B one pitch at a time from the state in which the seedlings B are supported on the seedling receiving tray 71, one at a time at the sending end thereof. Supply falling. Above the delivery end of the seedling lateral feed mechanism 41, a reciprocatingly swinging seedling removing means 93 is provided to ensure this drop supply.

In FIG. 1 to FIG.
1. The defective seedling detection mechanism 102 and the defective seedling elimination mechanism 103 will be described in detail. The seedling lateral feeding means 41 fixes a large number of brackets 110 to the endless chain 70, and supports a seedling receiving tray 71 via a shaft 72 on the bracket 110 and is provided with a helical spring 73. The seedling receiving tray 71 is substantially L-shaped in a side view on which the seedlings B with soil can be placed.
In the middle of the upper surface, a position setting unit 111 for setting the position of the block soil b of the soil seedling B is formed of a bar or the like.

The seedling receiving tray 71 has the endless chain 7
0 while being kept in a horizontal position by the guide rail 95 by the intermittent movement of the planting tube 33,
At this position, the lower part 95A of the guide rail 95 inclines so as to be downward toward the planting cylinder 33, and the mounted seedling B is dropped from the block soil b side. Guide rail 9
5 is formed of a plate material or a bar material, and an endless chain 70
And guides the fully closed seedling receiving tray 71 in a horizontal posture or an inclined posture.

A reverse tilting means 133 is provided one pitch before the lowering portion 95A of the guide rail 95 on the upper side. The reverse tilting means 133 is formed by providing the guide rail 95 with the upwardly projecting portion 134.
When the seedling receiving tray 71 rides on the convex portion 134, the seedling receiving tray 71 is inclined in the opposite direction to the lowering portion 95A, and is moved in the direction opposite to the direction in which the soil seedling B is supplied to the planting device 21, and the block soil is moved. b is brought into contact with the position setting unit 111.

The defective seedling detecting mechanism 102 includes a seedling detecting sensor 104 disposed one pitch above the planting cylinder 33 and
And an actuating means 105 for moving it up and down. The seedling detection sensor 104 is formed by a limit switch or the like having a long detection piece 104A.
To detect the presence or absence thereof. The actuating means 105 is formed of a rotary solenoid or the like, and a seedling detection sensor 104 is attached to a rotation shaft 105A of the rotary solenoid, and the tip of the detection piece 104A is rotated with respect to the seedling receiving tray 71 so as to operate in the vertical direction. I do.

The actuating means 105 operates in synchronization with the seedling lateral feeding means 41, descends the detecting piece 104A of the seedling detecting sensor 104, contacts the foliage a and detects it. When there is no foliage a, the detection piece 104A does not come into contact even if it descends, so the seedling detection sensor 104 detects the failure of the soiled seedling B and activates the defective seedling elimination mechanism 103. When a defective seedling is detected by the seedling detection sensor 104, the seedling receiving tray 71
Is the guide rail 95 between the convex portion 134 and the lower portion 95A.
Is in a horizontal position.

That is, as shown in FIG.
Receiving tray 71 for transporting the seedlings lying down sideways
Is first moved in a horizontal posture by the guide rail 95,
The protruding portion 134 of the reverse tilting means 133 inclines so that the foliage a is on the lower side, abuts the block soil b on the position setting portion 111, corrects the position of the seedling B with respect to the guide rail 95, and then corrects the position. , Returning to the horizontal position, the defective seedling detection mechanism 102
The seedling detection sensor 104 detects the quality of the seedling B. If the seedling B is normal, the defective seedling removing mechanism 103 is not activated and the lowering part 95A is inclined so that the block soil b is on the lower side. Then, the seedlings B with soil are supplied to the planting cylinder 33.

The defective seedling elimination mechanism 103 is disposed on the side of the planting cylinder 33 and has a rotating shaft 115 of a rotary solenoid 115.
A push-up member 116 in the shape of an arc is attached to A. The seedling detection sensor 104 operates after detecting the failure of the seedling B on the seedling receiving tray 71 to move the seedling receiving tray 71 that moves one pitch downward. To prevent the seedling receiving tray 71 from being inclined. If the seedling receiving tray 71 is not in the inclined posture, the seedling-free block soil b thereon (defective seedling)
Is not supplied to the seedling tube 33, and the seedling receiving tray 7
At the point when 1 has passed the planting tube 33, the push-up member 116
As a result, the block soil b falls and is removed.

The defective seedling eliminating mechanism 103 has a chute-shaped guide member 117 at a position where the seedling-free block soil b is dropped and eliminated, and the guide member 117 guides the block soil b to fall into the groove C between the ridges A. The block soil b is used for holding the multi-film D. The defective seedling elimination mechanism 103 and the operating means 105 are provided in a stay 4
2 fixed.

The planting device 21 includes a seedling detection sensor 104.
When a defective seedling such as a seedling-free block soil b or a foliage-ungrown seedling is detected, the defective seedling excluding mechanism 103 is operated to
The inclination of the seedling receiving tray 71 that has reached the position 3 before is prevented so that the defective seedlings fall into the guide member 117 without entering the planting cylinder 33, and the normal soiled seedlings B move next. Power transmission to the drive wheel 14, the multi-perforation device 22 and the like is cut off until the time comes, so that the implantation interval is not changed.

FIG. 11 shows a modified example of the defective seedling detecting mechanism 102. The defective seedling detecting mechanism 102 includes an entire seedling receiving tray 71 in addition to the seedling detecting sensor 104 and the operating means 105.
The contact member 106 provided in the above. The contact member 106 is pivotally supported via a horizontal axis 113 to a support portion 112 erected from the vertical wall of the seedling receiving tray 71 via a horizontal axis 113, and intersects with the contact portion 106A that comes into contact with the foliage a of the soil seedling B. And a contact portion 106A.
When the foliage a comes into contact with the sensing portion 106B, the sensing portion 106B faces upward (FIG. 11).
When the seedling B does not have the foliage a, the sensing unit 106B faces downward from the horizontal (1 in FIG. 11).
(A non-detection posture indicated by a dashed line).

In the defective seedling detection mechanism 102 of this modification,
When the position of the seedling B is corrected, the contact member 106 operates reliably, and the defective seedling can be detected more accurately.
Note that the present invention is not limited to the above-described embodiment, and can be variously modified. For example, the reverse tilting means 133
Is configured by attaching an arc-shaped push-up member to a rotating shaft of a rotary solenoid such as the defective seedling eliminating mechanism 103,
The seedling receiving tray 71 at two pitch positions before the planting cylinder 33 is
In synchronization with the movement, the push-up member may be inclined so that the foliage a is lower than the horizontal posture. The position setting section 111 may be formed by fixing a plate or the like on the upper surface of the seedling receiving tray 71.

FIGS. 12 and 13 show one of the horizontal control mechanisms of the transplanter.
An example is shown in which the PT projecting from the transmission case 8
The O-axis 12 is disposed substantially horizontally at the center of the traveling
A support bracket 140 is fitted to the TO shaft 12 so as to be rotatable around the axis, and the support bracket 140 is attached to the power receiving shaft 23.
And the movable frame 24 and the elastic support means 25 are connected by a ball joint 141 and the center thereof is
It is arranged on an extension of the shaft 12, and this
The movable frame 24 is supported to be able to swing left and right around the axis of the PTO shaft 12. The movable frame 24 is provided with a horizontal sensor 142 for detecting the horizontal thereof.

On the main frame 17 side, a pair of left and right motors (for example, ultrasonic motors) 143 and a pulley 144 are arranged, and wires 145 connected to the left and right of the support bracket 140 are guided by each pulley 144 so that the left and right motors 14 are driven.
3 and is rotatable. When the traveling vehicle body 3 is tilted during transplanting work on an inclined ground or the like, the horizontal sensor 142 detects the inclination and rotates the left and right motors 143 in the reverse direction.
0 is rotated around the PTO shaft 12 so that the planting device 21 is controlled to be substantially horizontal.

[0046]

According to the present invention described in detail above, the position setting unit 1 for setting the position of the block soil b on the seedling receiving tray 71.
11 and the seedling receiving tray 7
Reverse tilting means 133 for tilting 1 in the opposite direction to the transfer of the seedling B with soil to contact the block soil b with the position setting unit 111
Are provided, so that the seedling receiving tray 7
1 can be corrected to a normal position with respect to the planting device 2
In this way, when the supply of the defective seedlings is detected and eliminated, the detection and elimination can be performed accurately.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part showing an embodiment of the present invention.

FIG. 2 is a sectional rear view of the main part.

FIG. 3 is a side view of the main part.

FIG. 4 is a rear view when the seedling pushing mechanism advances.

FIG. 5 is a rear view when the seedling pushing mechanism is retracted.

FIG. 6 is a side view of the entire transplanter.

FIG. 7 is a plan view of the entire transplanter.

FIG. 8 is a side view of the transplantation working unit.

FIG. 9 is a sectional view taken along line XX of FIG. 4;

FIG. 10 is an operation explanatory view showing tilting of a seedling receiving tray.

FIG. 11 is a rear view showing a modified example of the defective seedling detection mechanism.

FIG. 12 is an explanatory rear view showing an example of the horizontal control mechanism of the transplanter.

FIG. 13 is an explanatory side view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transplanter 11 Transplantation work part 17 Main frame 20 Seedling box device 21 Planting device 22 Multi-perforation device 24 Movable frame 39 Seedling box vertical feed mechanism 40 Seedling extruding mechanism 41 Seedling lateral feed mechanism 102 Defective seedling detection mechanism 103 Defective seedling elimination mechanism 104 seedling detection sensor 111 position setting unit 133 reverse tilting means A ridge B soil seedling b block soil

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yuji Izuno 1-1-1 Hama, Amagasaki-shi, Hyogo Prefecture Kubota Corporation Electronic Technology Center (72) Inventor Yuji Watanabe 1-1-1 Hama, Amagasaki-shi, Hyogo (56) References JP-A-63-63302 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) A01C 11/02

Claims (1)

(57) [Claims] 1. A large number of seedling receiving trays (71) are arranged endlessly and intermittently moved one pitch at a time. Each of the seedling receiving trays (71) is held in a substantially horizontal posture and a soil is placed on it. The seedlings (B) are placed sideways, and the seedling receiving tray (71) is inclined at a required position to transfer the soiled seedlings (B) from the seedling receiving tray (71) to the planting device (21). The seedling receiving tray (71) is provided with a position setting part (111) for setting the position of the block soil (b), and the seedling receiving tray (71) is provided on the upstream side of the planting device (21). ) Is provided with a reverse tilting means (133) for inclining the soil block (B) with the position setting section (111) by tilting the soil in the opposite direction to the transfer of the seedling (B). Tray seedling correction mechanism.