JPH08172822A - Method for drawing and feeding seedling and device therefor in transplanter - Google Patents

Abstract

PURPOSE: To provide a seedling drawing and feeding method and device therefor designed to assuredly draw seedling soil from a pot in a seedling tray and feed it to a transplanting section even if the soil varies in root spread. CONSTITUTION: There is equipped with a claw-operating mechanism 42 designed to subject a seeding-drawing claw 56 to reciprocating motion relative to the seedling soil C in a pot 40 in a seedling tray 41 to draw the soil C, and the mechanism 42, in turn, stands equipped with a claw guide means 53 presenting such a nearly V-shaped reciprocating motion locus that one side close to the opening edge of the pot 40 is the plunging initiation position for the claw 56 into the soil C, the claw 56 is advanced wedge-fashion toward the depth of the pot 40 and the retreating finishing position for the claw 56 is in the vicinity of the opening edge of the pot 40 and is the other side against the above- mentioned one side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling takeout / supply method and device for a transplanter, and is used for transplanting vegetables such as cabbage and lettuce.

[0002]

2. Description of the Related Art A vegetable transplanting machine for growing seedlings in a seedling tray having a pot portion in a vertical and horizontal lattice arrangement, and taking out seedling soil (soiled seedling) from the pot portion and transplanting the seedlings is well known. Is trying to mechanize. In this vegetable transplanter, it is essential to take out the seedling soil from the pot part, and various take-out techniques have been proposed because the rooting strength is strong and weak.

[0003] One of them is one in which seedlings are extruded from the opening of the pot part by using a water draining hole formed at the bottom of the pot part and plunging an extruding tool into the hole (conventional example 1). . In addition, the other one was to take out the seedling soil from the opening of the pot portion by pushing the seedling taking-out nail into the seedling soil from the opening of the pot portion and withdrawing it (2 of the conventional example). Further, as another one, a technique in which the conventional example 1 and the conventional example 2 are combined has been proposed (see Japanese Patent Application Laid-Open No. 4-330211; conventional example 3).

[0004]

In the first conventional example, when a group of seedlings in a horizontal row is projected by an extruding tool, it is inserted into a water drain hole, so that if the position of the hole and the extruding tool are misaligned, the projecting material will not substantially project. It was not possible, and in particular, the diameter of the water drain hole was small, so there was a high possibility of misalignment. Further, even if there is no misalignment, the extruding tool can use only thin rods, and in the case of seedlings with weak rooting, it is possible to push out the seedlings from the pot simply by the rods plunging into the seedlings. There were times when I couldn't.

In the conventional example 2, when the seedling take-out nail is thrust into the seedling soil in the pot portion, since the plunging movement is linear, when the nail is withdrawn even if it is stabbed into the seedling soil, There was a problem that the seedlings were easily pulled out and remained in the pot. Since the conventional example 3 is a cooperative action of the push using the water drainage hole of the pot part and the pulling out by plunging into the seedling, it is understood that the seedling can be taken out reliably at first glance. However, it is necessary to synchronize the movement of the push from the back of the pot part with the movement of the seedling take-out claw from the surface, and if this synchronization goes wrong, either one will take precedence and it will be difficult to take out the seedling soil from the pot part. Further, since the tuning mechanism is attached, not only is the structure complicated and the cost is high, but also the adjustment is difficult.

In view of the above, the present invention is a type in which seedling soil is taken out by inserting and retracting the seedling take-out claws from the opening edge of the pot portion,
That is, in Conventional Example 2, by improving the nail movement of the seedling take-out nail and its trajectory, the seedling soil can be reliably taken out from the pot portion even if the rooting is strong and weak, and can be delivered and supplied to the transplanting portion in a correct posture. The purpose is to make it possible.

[0007]

[Means for Solving the Problems] The present invention removes seedlings from the pot portion by inserting and retracting the seedling take-out nails into the seedling soil in the pot portion of the seedling tray, and the taken-out seedling soil is used as a transplant portion. In order to achieve the above-mentioned object, the following technical measures are taken. That is, claim 1
In the present invention according to, the one side in the vicinity of the opening edge of the pot portion is the starting position of the protrusion of the seedling take-out nail to the seedling soil, and the seedling take-out nail is wedge-shaped from this position toward the back in the pot portion depth direction. And the exit end position of the seedling take-out nail is a substantially V-shaped reciprocating locus with the other end facing the one end in the vicinity of the opening edge of the pot portion. .

In the method of the present invention according to claim 2, the seedling-extracting nails are rod-shaped nails parallel to each other, and when these rod-like nails enter into a wedge shape, they become tapered and move from the exit end position to the transplantation part. It is characterized in that the tapered shape is maintained up to the supply position. The method of the present invention according to claim 3 is characterized in that the seedling soil is scooped when the seedling take-out nail is made to enter in a wedge shape.

In the device of the present invention according to claim 4, there is provided a pawl operating mechanism for reciprocating the seedling taking-out nail with respect to the seedling soil in the pot portion of the seedling tray to take out the seedling. One side near the opening edge of the pot section is set as the plunge start position of the seedling take-out nail with respect to the seedling soil, and the seedling take-out nail is advanced in a wedge shape from this position toward the depth direction inner part of the pot section, and And a nail guide means having a substantially V-shaped reciprocating locus in which the exit end position of the seedling take-out nail is the other side opposite to the one side in the vicinity of the opening edge of the pot portion. Is.

In the device of the present invention according to claim 5, the seedling take-out claws are rod-shaped claws that are parallel to each other, and when the rod-shaped claws enter into a wedge shape, the claw-like claws are tapered, and the feeding position from the exit end position to the transplantation part. It is characterized in that it further comprises a claw opening / closing means for maintaining the tapered shape and releasing the seedling soil at the supply position. In the device of the present invention according to claim 6,
It is characterized in that the tip of the nail is formed in a curved portion so as to scoop the seedling soil when the seedling take-out nail is made to enter in a wedge shape.

In the device of the present invention according to claim 7, the seedling soil taken out from the pot portion is transferred to the transplanting portion, and
The present invention is characterized by comprising a seedling extruding tool for supplying seedling soil pierced by a seedling take-out nail to the transplanting section.

[0012]

[Function] The seedling take-out claw (56) is activated by the operation of the claw movement mechanism (42).
When the seeds are moved toward the seedling tray (41), the tip of the seedling take-out claw (56) is moved by the claw guide means (53) to one side (lower side) near the opening edge of the pot part (40) as shown in FIG. ), And from this rush start position,
As shown in (3), the seedling soil (C) in the pot portion (40) is wedge-shaped and made to enter in the depth direction.

Next, when the tip of the seedling take-out claw (56) is to be retracted by the operation of the claw operating mechanism (42), as shown in FIG. 8, the exit end on the other side of the opening edge facing the plunge start position is completed. The root hair is torn off (cut) by making a reciprocating locus of a substantially V-shaped position, and the seedling soil (C)
By picking up from the pot part (40) by scooping, the seedling take-out becomes soft.

The seedling soil (C) taken out from the pot portion (40) is operated by the nail operating mechanism (42) to operate the seedling taking-out nails (5).
6), the implant part (3
7) It is supplied up to a position facing up and down, delivered by dropping it from the nail, and the same operation as described above is repeated, so that the seedlings (C) are taken out from the pot part (40) one after another. become.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. 13 and 14 show a vegetable transplanter 11 equipped with the seedling take-out / supply device 10 according to the first embodiment of the present invention. This transplanter 11 is a walking type having a steering handle 13 on the rear part of the traveling vehicle body 12, and while straddling the ridges 14 and traveling in the longitudinal direction thereof, the earthed seedlings C are planted in the ridges 14 at predetermined intervals. Has become.

The traveling vehicle body 12 is composed of a main frame 15, a frame 16 provided at the front end of the main frame 15, and the like. An engine 17 is mounted on the gantry 16, the engine 17 is covered by a bonnet 18, a mission case 19 is fixed to the rear part of the gantry 16, and its input part and the output part of the engine 17 are wound and transmitted. It is linked by the body 20.

The power from inside the mission case 19 is taken out by two systems of a wheel transmission shaft 21 and a PTO shaft 22, and the left and right ends of the wheel transmission shaft 21 swing up and down about the axis. Left and right drive wheels 2 via the transmission case 23
4, the drive wheels 24 can be driven by the winding transmission body in the transmission case 23. This drive wheel 24 is the ridge 1
It rolls in the groove between 4. A front part of the traveling vehicle body 12 is provided with a pair of left and right front wheels 25 and a ridge-shoulder copying roller 26.

The main frame 15 of the traveling vehicle body 12 is formed of a square pipe or the like, and the front portion thereof is bent downward so that the gantry 1
It is fixed to the side portion of the steering wheel 6, and the rear portion is bent upward to serve as a mounting portion for the steering handle 13. Running car body 1
A transplanting work unit 30 is provided at the rear of the unit 2. This transplanting work unit 30 holds the seedling extracting / supplying device 10 and the soil-bearing seedling (seedling) C supplied from the seedling extracting / supplying device 10 in the ridge 1.
4, a movable frame 33 that has a planting device 31 and the like to be planted in 4 and that swings in the vertical direction around the axis of a power receiving shaft 32 that is supported on the fixed side of the mission case 19 and the like. A crushing roller (or a soil covering roller) 34 is provided at the rear of the movable frame 33.

The planting device 31 is supported on the movable frame 33 via a suspension link 35 by a parallel link 36 so as to be swingable in the vertical direction, and a beak tubular planting tube 37 is attached to the tip of the parallel link 36. The planting cylinder 37 is vertically movable by a crank motion of a crank body 38 linked to a middle portion of the parallel link 36. Further, the planting cylinder 37 is a transplanting part and is open upward, so that the soil-grown seedling C is dropped from the seedling take-out / supply device 10 arranged above the planting cylinder 37. , Parallel link 3
When it is moved downward by 6 and pierced by the ridge 14, the lower end portion is opened so that the soil seedling C is planted.

The seedling take-out / supply device 10 has a seedling tray 4 in which a large number of pots 40 in which soil-grown seedlings C have been raised are arranged vertically and horizontally.
The seedlings C with soil are taken out one by one and dropped into the planting cylinder 37. This seedling tray 41 is made of resin, has flexibility, and has a large number of pots 40 arranged vertically and horizontally.
Is provided so as to project to the back surface, and a water draining hole (not shown) is formed in the bottomed portion of the pot portion 40. Soil seedlings C are bred in each pot portion 40, and vertical and horizontal gaps are formed between the pot portions 40.

The seedling take-out / supply device 10 according to the first embodiment of the present invention, as shown in FIGS. 1 to 12, has a pot portion 40 of the seedling tray 41 at a predetermined seedling take-out position with respect to the planting device 31.
A nail operating mechanism 42 (seedling extracting means) for taking out the soil-embedded seedlings C one by one from the seedling extracting nails 56, and a large number of pots 40 provided in the rear of the nail operating mechanism 42 and arranged vertically and horizontally.
Conveying device 4 that conveys the seedling tray 41 in the horizontal and vertical directions so that the seedling tray 41 is sequentially positioned at the take-out position by the claw operating mechanism 42
3 (conveying means).

The pawl operating mechanism 42 reciprocates the seedling take-out pawl 56 with respect to the seedling tray 41, and includes a device frame 44 fixed on the movable frame 33. The device frame 44 has a PTO shaft. 7 to FIG. 1 by the rotation power from 22.
2, the crank body 45 is driven to rotate counterclockwise.
Is provided. A crank pin 46 is laterally projected from the tip of the crank body 45.

A base end of a swing arm 47 is pivotally connected to the device frame 44 below the crank body 45. A long hole 48 extending in the vertical direction is formed in the swing arm 47, and a crank pin 46 of a crank body 45 is inserted and engaged in the long hole 48. The quick return mechanism is configured such that the time for rocking in the direction of separation is longer than the time for rocking in the direction of approaching.

A guide link 49 is pivotally connected to the tip of the swing arm 47 via a pin 47B. The guide link 49 is provided with a cylindrical holding portion 54, and the holding portion 54 has a rod-like rod 55 that is movable in the axial direction and has a straight rod shape.
Is guided through, and the rod 55 can be moved back and forth toward the seedling tray 41 of the carrier device 43. A substantially U-shaped seedling take-out claw 56 that is pierced obliquely from the earthed seedling C in the pot 40 is attached to the tip of the rod 55.

Further, the bracket 5 is attached to the guide link 49.
A roller 51 is attached so as to be freely rotatable through 0, and the roller 51 is attached to the upper part of the device frame 44 by the guide plate 5
2 is engaged with the cam groove 53 formed on the swing arm 4
The posture of the guide link 49 according to the swing angle of 7 (especially,
(Relative angle of the guide link 49 with respect to the swing arm 47)
Are regulated.

That is, when the soil seedling C is pulled out from the pot portion 40 (from the state shown in FIG. 7 to the state shown in FIG. 8), the relative angle of the guide link 49 with respect to the swing arm 47 does not change so much. On the rear side of the cam groove 53 (on the right side in FIG. 7), the roller 51 is swung with the swing shaft 47 of the swing arm 47.
The shape is such that it shifts around A. As a result, the tip of the seedling take-out pawl 56 is attached to the swing shaft 47A of the swing arm 47.
While drawing a locus around
The soil-embedded seedlings C are slowly picked up from the pot portion 40 by the seedling-picking claws 56.

Further, when the soil-grown seedlings C taken out from the pot section 40 are transferred to the upper part of the planting cylinder 37 (from the state shown in FIG. 8 to the state shown in FIG. 9), the seedling take-out claws 56 are enlarged. The front side (left side in FIG. 8) of the cam groove 53 moves the roller 51 in a direction away from the swing shaft 47A of the swing arm 47 so that the soil seedling C is moved to the front and has a substantially vertical posture. It is said that.

Flange 5 provided at the base end of rod 55
A compression coil spring 57 is provided between the 5a and the holding portion 54.
Is provided as an urging means for constantly urging the rod 55 in the retracting direction. Further, the rod 55 has a guide rod 58.
Is integrally attached via a holder bracket 58A of the seedling take-out pawl 56, and the guide rod 58 is attached to the guide link 4
9 is engaged with the restriction portion 59 provided on the guide link 49.
The axial rotation of the rod 55 with respect to is prevented.

A notch recess 6 is formed in the axially intermediate portion of the rod 55.
0 is formed, and the lock piece 6 is attached to the guide link 49.
1 is pivotally connected via a shaft 62, and a tip end portion of the lock piece 61 is detachably engaged with a notch concave portion 60 for holding a rod 55 in a posture projecting from the holding portion 54 toward the conveying device 51. It is an engaging portion 63 that engages. The lock piece 61 is constantly urged by a coil spring 64 fitted onto the shaft 62 in a direction in which the engaging portion 63 engages with the cutout recess 60.

Further, in the device frame 44, the swinging arm 47 abuts the lock piece 61 at a position farthest from the transfer device 43 (see FIG. 9 or 10), and the engaging portion 63 and the notch recess 60 are formed. An abutment body 65 for swinging the lock piece 61 in a direction to release the engagement with is attached. An extruding link 66 is rotatably connected to the lower end of the guide link 49 via a pin 66A. A long hole 67 is formed at the tip portion of the push-out link 66, and a pin 68 protruding near the tip portion of the rod 55 is inserted into and engaged with the long hole 67 to form the rod 5
5 and the extrusion link 66 are pivotally connected.

A swing arm 47 is attached to the push-out link 66.
Is positioned at the swing end on the side of the transport device 43 (see FIG. 7 or 12), the crank pin 46 is forced to force the push-out link 66 toward the transport device 43 side with respect to the guide link 49. There is provided a cam 69 that is in sliding contact with.
The middle portion of the long hole 48 provided in the swing arm 47 is provided in the swing arm 47 and the guide link 4 when the crank pin 46 contacts the cam 69 and the push-out link 66 is swung.
9 is bent along the rotation locus of the crank pin 46 so as to stop it.

When the seedling take-out pawl 56 projects from the holding portion 54 and is retracted by the urging force of the urging means 57, the soil-applied seedling C held by the seedling take-out pawl 56 is dropped so as to drop. The pushing member 70 for pushing the seedling C is attached to the guide link 49. The extruding member 70 is formed by bending a steel wire, and has an annular portion 70a formed at the tip.
The seedling take-out claw 56 is inserted through.

Therefore, when the soil-embedded seedling C is transferred to above the planting cylinder 37 by the seedling take-out claw 56 (see FIG. 9), the lock piece 61 strikes the abutting body 65, and FIG. The engagement part 63 and the notch recess 6 are swung as shown by the chain double-dashed line.
Since the engagement with 0 is released, the rod 55 and the seedling extraction claw 56 are rapidly retracted upward by the urging force of the urging means 57. At this time, the soil seedling C is the annular portion 7 of the extruded member 70.
Since the upward movement is restricted by 0a, the seedling take-out claw 56
And is dropped into the planting cylinder 37.

Then, in order to supply the next soiled seedling C to the planting device 31, the swing arm 47 is swung by the crank body 45 so that the seedling take-out pawl 56 is again at the pot section 40 at the seedling take-out position.
When the tip of the pawl 56 is positioned near the edge of the pot portion 40 (see FIG. 12), the cam 69 of the extrusion link 66 is approached.
Comes into contact with the crank pin 46, the extrusion link 66 is forcibly pushed out toward the seedling tray 41 against the urging force of the urging means 57, and the seedling take-out claw 56 is pierced into the soil-attached seedling C from an oblique direction. Be done. At this time, the bottom portion of the pot portion 40 at the seedling take-out position is supported by the support member 74 described later, the deformation of the seedling tray 41 is prevented, and the seedling take-out pawls 56 can stably take out the seedlings C with soil. Thereafter, the same operation as above is repeated.

That is, the claw operating mechanism 42 is used for the seedling removing claw 5
6 reciprocally moves with respect to the seedling tray 41 so that the pot portion 40
To take out the seedling C of No. 3 and supply it to the transplanting section 37,
The tip of the claw 56 is guided as follows by the guide means 53 shown by the cam groove 53 and the like. In FIG. 12, when the tip of the claw 56 plunges into the seedling soil C of the pot portion 40, the plunge start position is one side (downward) near the opening edge of the pot portion 40, and from this position, the depth direction of the pot portion 40. When entering, the wedge-shaped approach is made to the center of the seedling C, and after entering, the other end (upper side) near the opening edge of the pot portion 40 is the exit end position, and the seedling C is scooped at this exit. However, the root hairs and the like are cut, and the seedlings C having weak rooting can be picked up by scooping up and the seedlings C having strong rooting can be reliably taken out by cutting the root hairs and the like. The tip movement locus of the claw 56 is substantially V-shaped as shown in FIG.

7 to 12, the seedling removal process from when the seedling removal nail 56 is pierced into the soil-grown seedling C to when the soil-grown seedling C is dropped above the planting cylinder 37 (forward). The locus X of the tip portion of the seedling take-out nail 56 in the process) is indicated by a dashed line, and the locus Y of the tip portion of the seedling take-out nail 56 in the backward movement process is indicated by a dotted line.
As shown in FIGS. 1 to 3, the carrier device 43 includes a seedling tray 4
1 is provided with a transport frame 71 for guiding and supporting the transporting unit 1 in a vertical direction, and a base frame 72 for supporting the transport frame 71 so as to be capable of reciprocating in the horizontal direction (left-right direction).

A support plate 73 for supporting the bottom of the seedling tray 41 is attached to the transport frame 71 in a front lower inclined shape. At the center of the support plate 73 in the left-right direction, as shown in FIG. 3, a guide wall portion 73a that is engaged with the gap between the pot portions 40 and restricts the movement of the seedling tray 41 in the left-right direction is bent and formed. . The support plate 73 is at the pot portion 4 at a position where the soil-embedded seedling C is taken out by the seedling taking-out claw 56 of the seedling taking-out device 42.
It is extended to 0, the tip of this support plate 73,
Seedling tray 4 when the seedling picking claw 56 is stabbed in the soiled seedling C
The support member 74 supports the bottom of the pot portion 40 at the seedling take-out position so as to prevent the deflection of the pot 1.

It is preferable that the support member 74 should support the bottoms of all the pots 40 in a horizontal row at the seedling take-out position. Further, it is not necessary to integrally provide the support plate 73, and the support plate 73 can be extended to the front of the pot section 40 at the seedling take-out position and the support members 74 can be individually attached to the transport frame 71. Further, the support member 74 is not limited to the plate-shaped member, but may be a rod-shaped member, a spherical member, or the like.

A horizontal shaft 75 is rotatably attached to the transfer frame 71 via a bearing 76.
A pair of left and right vertical feed wheels 77 are integrally provided in the. On the inner surface side of the wheel 77, a transport pin 78 that engages with the gap between the pot portions 40 of the seedling tray 41 is detachably attached at an appropriate position in the circumferential direction. The transport pins 78 are selectively attached to a plurality of attachment holes (not shown) provided in the vertical feed wheel 77, and the attachment position is adjusted according to the pitch between the pot portions 40 of several seedling trays 41. Can be changed.

A drive arm 80 is provided at the end of the horizontal shaft 75 via a one-way clutch 79 (or ratchet mechanism), and the drive arm 80 is reciprocated within a predetermined swing angle range. The wheel 77 is adapted to rotate only in one direction (direction in which the seedling tray is fed downward). The swinging angle of the drive arm 80 is regulated by a regulating member 81 that is swingably attached and fixed to the transport frame 71. That is, the notch 82 extending in the circumferential direction corresponding to the swing range of the drive arm 80 is formed in the restriction member 81,
A pin 83 protruding from the tip of the drive arm 80 is inserted into the cutout portion 82, and the pin 83 reciprocates once in the cutout portion 82 to move the seedling by one pitch of the pot portion 40. The tray 41 can be conveyed in the vertical direction. The restricting member 81 is returned by a coil spring 84 fitted onto the horizontal shaft 75 (indicated by an arrow B in FIG. 1).
Is urged by.

Further, the wheel 77 is provided with first positioning recesses 85 arranged side by side in the circumferential direction at a center angle corresponding to one pitch of the pot portion 40, and is engaged with the first positioning recesses 85 so as to be engageable and disengageable. A detent mechanism 86 is provided on the regulating member 81 to position the wheel 77. Two fixing holes 87 are formed in the restriction member 81, and one of the fixing holes 87 is selected and fixed to the transport frame 71 with a bolt 88. Further, the cutout portion 82 is formed in a stepped shape so that the movement range of the pin 83 becomes large in a posture in which the regulation member 81 is swung as shown by the chain double-dashed line in FIG. 41 pot portion 40
The swing angle of the drive arm 80 can be adjusted according to the inter-pitch. In addition, the first positioning recess 8
Second positioning recesses 89 are arranged side by side in the circumferential direction on the inner peripheral side of the drive arm 8 at a central angle different from the central angle.
When the posture of the restricting member 81 is changed to adjust the swing angle of 0, the detent mechanism 86 automatically causes the positioning recesses (85 or 89) provided around the center angle according to the pitch between the pot portions 40. ) Will be engaged.

Further, the transport frame 71 is provided with a guide member 90 for guiding and supporting the side edge portion of the seedling tray 41 so as to bend the seedling tray 41 in the vertical direction along the wheel 83. On the other hand, the base frame 72 is attached to the movable frame 33, and a transverse feed shaft 92 having a traverse groove 91 is attached to the base frame 72 so as to be rotatable. Rotational power of the crank body 45 of the seedling feeding device 42 is transmitted to the shaft 92 via a winding transmission body 93, a drive gear 94, a driven gear 95 and the like. The drive gear 94 and the driven gear 95 are provided in a gear box 96 that is detachably attached to the base frame 72. By exchanging the gear box 96, the crank body 45 and the lateral feed shaft 92 can be replaced. By adjusting the rotation speed ratio of the seedling tray 40 and the pot portion 40, the lateral feeding amount of the seedling tray 41 can be synchronized with the operation of the seedling extracting device 42.

A slider 98 having an engaging pin 97 that engages with the traverse groove 91 is externally fitted to the lateral feed shaft 92, and the slider 98 is connected and integrated with the carrying frame 71 via an arm 99. Thus, when the lateral feed shaft 92 is rotationally driven, a lateral feed mechanism that reciprocates the transport frame 71 in the left-right direction via the slider 98 is configured. The slider 98
A bellows-shaped cover 1 that is axially expandable and contractible between the base frame 72 and the base frame 72.
00 is provided to prevent sand or the like from entering the traverse groove 91.

Crank arms 101 are provided at both left and right ends of the lateral feed shaft 92, and a transmission link 102 is provided on the transport frame 71 so as to be rotatable around the lateral shaft 102. The transmission link 102 includes an engaging portion 103 that engages with the crank arm 101 when the transport frame 71 moves to the leftmost end or the rightmost end, and the transmission link 102 and the drive arm 80 are connected to each other by a connecting link 104. And the drive arm 80 is reciprocated once when the transmission link 102 is swung by the crank arm 101.
Thus, a vertical transport mechanism is configured in which the seedling tray 41 is transported by one pitch in the vertical direction when the removal of the soil-bearing seedlings C from the horizontal row of pots 40 is completed. Crank arm 1
The transmission link 102 swung by 01 is returned together with the restriction member 81 by the coil spring 84 that returns the restriction member 81.

In the transplanter 11 described above, a tank 110 for storing water or medicine for supplying to the ridges 14 is provided at a substantially central portion (between the front wheel 25 and the drive wheel 24) of the traveling vehicle body 12. The tank 110 is integrally provided with a spare seedling stand 111 mounted on the tank 110 to improve the balance of the vehicle body and prevent the center of gravity from increasing, thereby increasing the traction force especially on a sloping ground. This tank 110
Is a cock 112 which is interlocked with the planting movement of the planting device 31.
The discharge pipe 113 is attached via the above, and the water or the medicine is supplied only to the vicinity of the soil-applied seedlings C planted in the ridges 14 to improve the efficiency of the amount of the water or the medicine used.

15 to 20 (A) and (B) show another embodiment of the present invention. First, FIG. 15 shows the seedling extraction nail 56.
Since the tip end portion of the above is formed in the curved portion 56A, and other basic configuration is the same as that described above, common portions are indicated by common reference numerals, and details are omitted. That is, the seedling take-out claw 56 makes a substantially V-shaped motion from the plunge start position to the withdrawal end position.
When entering the depth direction of 0, the seedling C is pushed in so that the seedling C can be extracted more reliably.

Further, it is taken out from the pot section 40 and the transplanting section 3
By forming the curved portion 56A in the process of supplying the seedling 7, the seedling soil C is prevented from accidentally falling during the supply. FIG. 16 shows a seedling extruding tool 114 for transferring the seedling soil pierced by the seedling take-out nail 56 to the transplanting portion 37 and supplying (falling) it to the transplanting portion 37.

In the illustrated embodiment, a rack 115 is formed on the rod 55, and the pushing tool 114 is formed along the rod 55.
And the rack 116 is formed on the rod-shaped portion of the push-out tool 114, and the pinion 117 that engages with both racks 115 and 116 is provided.
When the seedling extraction nail 56 enters via the pinion 11,
The push-out tool 114 is pulled out via the
When the 6 moves in, the pushing tool 1 is pushed through the pinion 117.
14 is retreated to ensure that the seedlings fall into the transplantation section 37.

It should be noted that the pushing tool 114 need only move relative to the seedling take-out claw 56, and a means using a cam or a spring may be used instead of the illustrated rack and pinion. FIG. 17 shows the cam 69 of the extrusion link 66.
A long hole 48 having a cam portion formed on the swing arm 47.
And the crank pin 46 cooperate with each other to form a temporary stop type.

That is, in swinging the swinging arm 47 by the crank pin 46, when the tip of the seedling picking claw 56 is opposed to above the pot portion 40, the claw 56 is temporarily stopped, and then the swinging arm is moved. Seedling extraction claw 56 by swinging 47
The nail 56 is made to enter the seedling soil C so that the nail 56 can be softly rushed into the seedling soil C. Others are the same as the constituent actions described above, and thus the details are omitted and common. Portions are indicated by common symbols.

FIG. 18 shows rod-shaped claws 156 in which the seedling take-out claws 56 are arranged parallel to each other and move forward and backward. When the bar-shaped claws 156 enter the seedling soil in a wedge-like shape, they are tapered and the exit end position. From the transplanting portion 37 to the feeding position (stroke X), the tapered shape is maintained, and the seedling C is fed at the feeding position.
The claw opening / closing means 118 is provided in order to open the above, and other configurations and operations are the same as those described above.

That is, the claw holder 119 is formed with a tapered claw pushing hole 119A, and the rod claws 156 are slidably inserted into the hole 119A.
At both ends of the interlocking link 120 pivotally supported on the rod 55 by a pin 120A, engaging means 120B formed by a long hole and a pin.
The rod-shaped claws 156 are attached. The curved portion shown in FIG. 15 may be formed at the tip of the rod-shaped claw 156.

FIG. 19 shows another example of the carrying device 43, which can be switched and fed when the number of holes in the pots arranged vertically and horizontally on the seedling tray changes. In FIG. 19, reference numeral 130 denotes a lateral feed means, which is a screw rod 1.
30A and a drive unit 130B indicated by a motor that rotates the motor forward and backward
And the screw rod 130A is a fixed frame 130.
It is mounted on C. A screw cylinder 131 is attached to the screw rod 130A.
A is screwed and reciprocally moved in the lateral direction by the screw feeding action,
The movable frame 131 is laterally fed, and the vertical feeding means 132 including a pair of left and right chains is attached to the movable frame 131.

A vertical feed rod 133 is erected on a fixed frame 130C in parallel with the screw rod 130A, and this rod 133 has an arm 133A and is rotatable around its axis by a driving unit 134 represented by a motor. A vertical feed shaft 135 is installed in parallel with the vertical feed rod 133, and arms 135A and 135B are provided at the middle and one end of the vertical feed shaft 135.
And one of the arms 135B and a pair of drive gears 136A and 136B having different diameters and numbers of teeth.
When 37 is installed and the drive unit 134 is driven, the vertical feed shaft 135 is intermittently rotated through the engagement of the arms 133A and 135A, and this rotational movement is driven by the drive gear 136A through the interlocking rod 137. The 136B is intermittently rotated vertically.

The driven gears 138A and 138B are selectively engaged with the drive gears 136A and 136B by the shift operation of the shifter lever 139, respectively.
A driven shaft 140 that slidably supports A and 138B by a spline or the like and a vertical feed unit 132 that is a chain are linked by a winding transmission body 141. The drive gear 1
A reverse rotation preventing pawl 142 is engaged with 36A and 136B, and the pawl 142 has an arm 143A provided on the cylinder shaft 143.
Then, the link rod 143B or the like is operated intermittently.

Accordingly, when the drive gears 136A and 136B are intermittently rotated by the operation of the drive unit 134 for vertical feed while the reverse movement is prevented by the pawls 142, the shifter lever 139 is moved.
One of the driven gears 138A, 13 selected in
8B is rotated and the longitudinal feed means 1 is passed through the winding transmission body 141.
32 is driven to vertically feed the seedling tray by the engaging bin 132A of the means 132.

When this one-pitch vertical feed is performed, the horizontal feed drive unit 130B operates to move the screw by one lateral feed.
Pitch feed is done. Note that the drive units 130B and 134
Instead of the motor, the power from the engine may be driven by a gear, a chain or the like. FIG. 20 (A)
(B) is another embodiment of the vertical seedling feeding means, in which the chain plate 144A of the endless chain (a pair, but only one is shown) 144 wound around the drive sprocket wheel and the driven sprocket wheel,
The support rod 145 is projected inward, and the long and short arms 146 and 147 are rotatably supported on the support rod 145, respectively, and the coil spring 145A and the positioning pin 145 are provided.
Pins 146A and 147A that are engaged with the gap of the pot portion 40 are provided on the long and short arms 146 and 147 that are prevented from coming off by B, and the arms 146 and 147 are supported by the support rod 145.
By rotating it around, the pins 146A and 147A can be freely engaged and disengaged in the space of the pot portion 40, and the respective positions thereof can be changed by the spring 145.
The posture is held by A and a positioning pin 145B.

By arranging the long and short arms 146 and 147 at every four or five pot portions 40, the long arms 146 and the short arms 147 are provided even for seedling trays having different pot portion pitches. The vertical feed pitch can be switched by engaging / disengaging the switch. Either of the long and short arms 146, 147 separated from the space of the pot portion 40 is positioned above and below the chain plate 144A.

In this case, in order to identify the long and short arms 146 and 147, it is desirable that the long arm 146 is colored in red and the short arm 147 is colored in yellow. The embodiment of the present invention is as described above, but the design can be changed as follows.

The pawl operating mechanism 42 and the carrying device 43 can be arranged so that their front and rear directions are changed, or they can be arranged laterally.
The seedling transplant part 37 can also be a rotary type. Further, the present invention is applicable to a passenger transplanter and so on.

[0061]

As described in detail above, according to the present invention, even if the soil-grown seedlings grown in the seedling tray have strong or weak rooting and hard or soft seedling soil, they can be reliably taken out from the pot portion and transplanted. Can be reliably delivered and supplied to the plant, which contributes to the production of vegetables that can be efficiently transplanted and have good survival and good growth.

[Brief description of drawings]

FIG. 1 is a side view of a seedling feeding device according to a first embodiment of the present invention.

FIG. 2 is a developed cross-sectional view showing a lateral feed mechanism of a conveyance means of the apparatus.

FIG. 3 shows a carrying frame of the apparatus.

FIG. 4 is a side view of the seedling take-out device.

FIG. 5 is a plan view of the same.

FIG. 6 is a rear view of the same.

FIG. 7 is a side view of a nail operating mechanism when a seedling picking nail is pierced into a soil-bearing seedling.

FIG. 8 is a side view of the claw operating mechanism when the soil-grown seedling is extracted from the pot portion.

FIG. 9 is a side view of the claw movement mechanism when the soil-grown seedlings are transferred to above the planting cylinder.

FIG. 10 is a side view of the nail operating mechanism when the soil-grown seedling is detached from the seedling take-out nail.

FIG. 11 is a side view of the nail operating mechanism in the process of bringing the seedling take-out nail closer to the seedling tray.

FIG. 12 is a side view of the nail operating mechanism immediately before the seedling removing nail is pierced into the soil-containing seedling.

FIG. 13 is a side view of the transplanter.

FIG. 14 is a plan view of the transplanter.

FIG. 15 is a side view of an essential part showing another example of the pawl operating mechanism.

FIG. 16 is a plan view of the same.

FIG. 17 is a side view of the same.

FIG. 18 is a plan view of the same.

FIG. 19 is a perspective view of the same.

FIG. 20 is a similar view showing the vertical feeding means, (A) is a plan view,
(B) is a side view.

[Explanation of symbols]

 10 Seedling Extracting / Supplying Device 37 Transplanting Section 40 Pot Section 41 Seedling Tray 42 Claw Movement Mechanism 53 Claw Guide Means 56 Sapling Extracting Claw C Seedling (Natural Seedling)

Claims (7)

[Claims] 1. A pot section (4) in a seedling tray (41).
The seedling extraction nail (56) is inserted into and withdrawn from the seedling (C) of 0) to remove the seedling (C) from the pot part (40),
A method for supplying the taken-out seedlings (C) to a transplanting part (37), wherein one side of the pot part (40) near an opening edge of the seedling-picking claws (56) with respect to the seedlings (C) is At the plunge start position, the seedling take-out claw (56) is wedge-likely advanced from this position toward the inner part in the depth direction of the pot part (40), and the exit end position of the seedling take-out claw (56) is the pot. A seedling taking-out / supplying method for a transplanter, which has a substantially V-shaped reciprocating locus which is the other side opposite to the one side near the opening edge of the part (40). 2. The seedling take-out claws (56) are rod-shaped claws that are parallel to each other, and when the rod-shaped claws enter in a wedge shape, the claw-shaped claws are tapered from the exit end position to the supply position to the transplant part (37). The method according to claim 1, characterized in that 3. The method according to claim 1, wherein the seedling soil (C) is scooped when the seedling take-out nails (56) are made to enter in a wedge shape. 4. The pot section (4) in the seedling tray (41)
The seedling take-out nail (56) is inserted into and withdrawn from the seedling soil (C) of 0) to take out the seedling soil (C) from the pot part (40), and the taken-out seedling soil (C) is transferred to the transplant part. A device for supplying (37), wherein the seedling take-out claw (56) is reciprocated with respect to the seedling soil (C) of the pot section (40) in the seedling tray (41) to produce the seedling soil (C). A claw operating mechanism (42) for taking out is provided, and the claw operating mechanism (42) has the one side near the opening edge of the pot part (40) at the start position of the seedling taking claw (56) to the seedling soil (C). From this position, the seedling take-out claw (56) is made to enter in a wedge shape toward the depth direction inner part of the pot part (40), and the exit end position of the seedling take-out claw (56) is set to the pot part ( 40) A claw guide having a substantially V-shaped reciprocating locus on the other side opposite to the one side near the opening edge. A seedling take-out / supply device of a transplanter, which is provided with a step (53). 5. The seedling take-out claws (56) are rod-shaped claws that are parallel to each other, and when the rod-shaped claws enter in a wedge shape, they taper, and the taper is performed from the exit end position to the supply position to the transplant part (37). Keeping the shape, seedling soil (C) at the supply position
5. Device according to claim 4, characterized in that it comprises pawl opening and closing means (118) for releasing. 6. The tip of the nail is formed in the curved portion (56A) so as to scoop the seedling soil (C) when the seedling take-out nail (56) is made to enter in a wedge shape. 4-
5. The device according to any one of 5. 7. The seedling soil (C) taken out from the pot portion (40) is transferred to the transplanting portion (37), and the seedling soil (C) pierced by the seedling taking-out nails (56) is transferred to the transplanting portion (37). 37. Device according to any one of claims 4 to 6, characterized in that it comprises a seedling extruder (114) for feeding to 37).