JPH08196110A - Taking out of seedling for transplanter and device therefor - Google Patents

Abstract

PURPOSE: To provide a seeding taking out device for a transplanter useful for cabbage, etc., equipped with crawl operating mechanism for taking out seedling soil by reciprocating a seedling taking out crawl on the seedling soil on a pot part in a seedling tray, capable of surely taking out seedlings in a vegetated state, causing improved root taking and growth and development after transplantation. CONSTITUTION: This device is used for taking out seedling soil C from a pot part 40 by plunging a seedling taking out crawl 56 into the seedling soil C of the pot part 40 in a seedling tray 41. The device is equipped with a crawl operating mechanism 42 for taking out the seedling soil C by reciprocating the seedling taking out crawl 56 on the seedling soil C of the port part 40 in the seedling tray 41. The crawl operating mechanism 42 is provided with a crawl guiding means 53 for advancing so as to scoop leaves C1 of the seedling soil C and moving the seedling taking out crawl 56 from the plunge starting position toward the interior part in the depth direction of the pot part 40 and retreating when the seedling taking out crawl 56 is advanced to the plunge starting position for the seedling soil C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling removing 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 conventional example 1, when the seedling soil is projected by the extruding tool, the extruding tool is inserted into the drain hole of the pot portion, so that the position of the hole and the extruding tool is substantially changed. There was a large possibility of misalignment due to the fact that the water could not be projected to the bottom and the diameter of the water drain hole was particularly small. 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. Further, in No. 2 of this conventional example, there is a risk of piercing or breaking the seedlings when the seedling extraction nail is rushed into the seedling soil in the pot portion. Had become a factor that died.

[0006] The conventional example 3 has a cooperative action of the push using the water drainage hole of the pot portion and the pulling out by plunging into the seedling so that the seedling can be taken out reliably at a glance. It is understood that the movement of the push from the back of the pot part and the movement of the seedling picking claw from the surface must be synchronized, and if this synchronization goes wrong, either one will take precedence and the seedling soil will be taken out from the pot part. It is difficult to do, and since the tuning mechanism is attached, it is not only structurally complicated and costly, but also difficult to adjust.

In view of the above, the present invention is a type in which seedlings are picked up 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 claw movement of the seedling take-out nail and its trajectory, the seedling soil can be reliably taken out from the pot portion without damaging the leaves and even when the rooting is strong or weak. The purpose is to do so.

[0008]

The present invention provides a seedling tray 41.
In order to achieve the above-mentioned object, the following technical means is used to remove the seedling soil C from the pot portion 40 by plunging and retracting the seedling removing nail 56 into the seedling soil C of the pot portion 40. I am taking it. That is, in the present invention according to claim 1, the seedling take-out claw 5 is provided at a position where the seedling soil C is started to enter.
6, when advancing so as to scoop the leaf C1 of the seedling soil C, the seedling take-out claws 56 are entered from the plunge start position toward the depth direction inner part of the pot portion 40. It is characterized in that the seedling soil C is taken out from the pot section 40 by piercing C and then withdrawing the seedling take-out nail 56 from the pot section 40.

In the device of the present invention according to claim 2, the claw operation mechanism 4 for reciprocating the seedling take-out nail 56 with respect to the seedling soil C of the pot portion 40 in the seedling tray 41 to take out the seedling soil C.
2, the claw operating mechanism 42 advances so as to scoop the leaf C1 of the seedling C at the time of advancing the seedling take-out claw 56 to the rushing start position for the seedling C, and at the same time, the rushing start position. Is provided with a claw guide means 53 that allows the seedling take-out claw 56 to enter and withdraw from the pot part 40 toward the inner part in the depth direction.

[0010]

When the seedling take-out claw 56 is moved (advanced) toward the seedling tray 41 by the operation of the claw operation mechanism 42, the claw guide means 5 is provided.
As shown in FIGS. 14 to 17, the tip of the seedling ejecting claw 56 is advanced to one side (lower side) near the opening edge of the pot portion 40 by 3 and the leaf C1 of the seedling soil C is scooped to the plunge start position. As shown in FIG. 7, the seedling take-out claws 56 pierce the seedling soil C by approaching the seedling soil C in the pot portion 40 from the plunge start position toward the depth direction inward direction as shown in FIG. 7.

Even if the leaf C1 of the seedling soil C hangs down during this operation, the seedling take-out claw 56 scoops up the leaf C1 so that it will not be pierced or fallen. Next, when the seedling take-out claw 56 is retracted from the pot portion 40 by the operation of the claw operation mechanism 42, as shown in FIG. 8, a substantially V-shape with the other side of the opening edge facing the plunge start position as the exit end position. The root hair is torn off (cut) by making a reciprocating motion locus, and the seedling C is picked up from the pot part 40 so that the seedling C has strong or weak rooting. Make sure to take it out without breaking it.

The seedling soil C taken out from the pot section 40 is held by the seedling taking-out nail 56 by the operation of the nail moving mechanism 42, and FIG.
12 to move as shown in FIG. 12, supply up to a position that vertically opposes the transplantation portion 37 as shown in FIG. 12, and are delivered by dropping from the nail, and again with the loci shown in FIGS. 13 to 17. The seedlings C are taken out from the pot portion 40 one after another while moving, and the reciprocating locus of the tip of the claw becomes a closed loop of a figure 8 shape that intersects in the middle of the reciprocating stroke.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 18 and 19 show a vegetable transplanter 11 equipped with a 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 comprises 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 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 around 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 provided at 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. In addition, the planting cylinder 37 serving as a transplanting portion is opened upward, and
Soil seedlings C from the seedling extraction / supply device 10 arranged above
When the lower end is opened by the parallel link 36 and stabbed in the ridges 14, the soiled seedlings C are planted at predetermined intervals in the longitudinal direction of the ridges 14. It is like this.

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 are 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 is, as shown in FIGS. 1 to 17, a pot portion 40 of a seedling tray 41 at a predetermined seedling take-out position with respect to a 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.
Crank body 45 driven to rotate counterclockwise in 7
Is provided. A crank pin 46 is provided on the crank body 45 so as to project laterally via an arm, and a drive cam 45A is provided coaxially with the crank body 45.

Further, a base end portion of a swing arm 47 is pivotally connected to the device frame 44 below a crank body 45 by a horizontal shaft 47A, and the swing arm 47 has a vertical direction (arm longitudinal direction). An elongated hole 48 is formed to extend into the hole 48, and the crank pin 46 of the crank body 45 is inserted into and engaged with the elongated hole 48. Therefore, in the pawl operating mechanism 42, the swing arm 47 approaches the conveying device 43. The swinging time (advancing stroke) is fast, and the exiting stroke (feeding stroke) swings in the direction of separation
A fast-return mechanism is constructed that takes longer time.

That is, in the outward process Y for taking out the seedling soil C from the pot section 40 by the seedling taking-out claw 56, the movement thereof is accelerated, and the seedling soil C is taken out from the pot section 40 and delivered to the transplanting section 37. During the reciprocal process X, it moves slowly so as to improve the efficiency of seedling extraction and supply. 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 a straight rod-shaped rod 55 is inserted and guided in the holding portion 54 so as to be movable in the axial direction. It is possible to move in and out of the tray 41. 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 via 0, and the roller 51 is formed in a cam groove 5 formed in a guide plate 52 which is swingably attached to an upper portion of a device frame 44 via a pin 52A.
3, the rolling roller 52B provided on the guide plate 52 via an arm is abutted on the drive cam 45A, and serves as a claw guide means by the counterclockwise rotation of the drive cam 45A. By swinging the guide plate 52 around the pin 52A, the seedling take-out pawl 56 is moved to the pot portion 4.
When moving toward 0, the entry point is the starting point (see Fig. 17)
16 (see FIG. 16), the tip of the seedling take-out claw 56 is swung around the pin 47B so that the leaf C1 is scooped in, and the guide link 49 depending on the swing angle of the swing arm 47. (In particular, the relative angle of the guide link 49 with respect to the swing arm 47) is regulated.

That is, when pulling out the soil seedling C 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 should not change so much. On the rear side of the cam groove 53 (on the right side in FIG. 7), the roller 51 is moved to 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 centering around, potted seedling C is pot part 40
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. 12), 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 portion 5 provided at the base end portion of rod 55
As shown in FIG. 5, a compression coil spring 57 is interposed between the 5a and the holding portion 54 to serve as a biasing means for constantly biasing the rod 55 in the retracting direction. Also, rod 5
5, the guide rod 58 is the holder bracket 5 of the seedling picking claw 56.
8A, and is integrally attached to the guide rod 58.
Is engaged with a restricting portion 59 provided on the guide link 49,
The axial rotation of the rod 55 with respect to the guide link 49 is prevented.

As shown in FIG. 4, a notched recess 60 is formed in the axially intermediate portion of the rod 55, and the guide link 4 is formed.
A lock piece 61 is pivotally connected to 9 via a shaft 62,
The tip portion of the lock piece 61 extends from the holding portion 54 to the conveying device 5
The engaging portion 63 is detachably engaged with the notch concave portion 60 so as to hold the rod 55 projecting toward 1.

In the lock piece 61, the engaging portion 63 is cut out by the coil spring 64 fitted onto the shaft 62, and the recess 60 is formed.
Is always urged in the direction to engage with. Also, the device frame 4
In FIG. 4, the swing arm 47 abuts the lock piece 61 at a position farthest from the transport device 43 (see FIG. 12 or 13) to release the engagement between the engaging portion 63 and the cutout recess 60. An adjustable striker 65 including a bolt and a lock nut for swinging the lock piece 61 in the direction 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 end of the push-out link 66, and a pin 68 protruding near the tip end of the rod 55 is inserted into and engaged with the long hole 67 so that the rod 55 and the push-out link 66.
And are linked together. When the swing arm 47 is located at the swing end on the side of the transport device 43 (see FIG. 7 or FIG. 17), the push link 66 is forcibly attached to the push link 66 with respect to the guide link 49. A cam 69 is provided that is in sliding contact with the crank pin 46 to push it toward the side.

The midway portion of the elongated hole 48 formed in the swing arm 47 is provided with the swing arm 47 and the guide link 49 when the crank pin 46 contacts the cam 69 and the push link 66 swings. It is bent along the rotation trajectory of the crank pin 46 to stop it. In addition, the seedling extraction nail 56
The push-out member 70 that pushes out the soil-grown seedlings C so as to drop the soil-grown seedlings C held by the seedling extraction claws 56 when the urging force of the biasing means 57 retreats from the posture in which the seedlings project from the holding portion 54. , Is attached to the guide link 49. The extruding member 70 is formed by bending a steel wire, and the seedling extracting claw 56 is inserted into an annular portion 70a formed at the tip end portion.

Therefore, when the soil-applied seedlings C are transferred to above the planting cylinder 37 by the seedling take-out claws 56 (see FIG. 12), the lock piece 61 strikes the abutting body 65, and FIG. Since the engagement between the engaging portion 63 and the notch recess 60 is released by swinging as shown by the chain double-dashed line, the rod 55 and the seedling take-out pawl 56 rapidly retreat upward due to the urging force of the urging means 57. (See FIG. 13). At this time, since the upward movement of the soil-grown seedling C is restricted by the annular portion 70a of the pushing member 70, the soil-grown seedling C is detached from the seedling extraction claw 56 and 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 and the seedling take-out pawl 56 is moved along the locus Y shown in FIGS. 14 to 17. As shown in FIG. 16 and FIG. 17, the roller 52B of the guide plate 52 is dropped from the protrusion of the drive cam 45A before the tip of the claw 56 comes close to the pot portion 40 by moving as shown in FIG. When the leaf C1 is advanced to the plunge start position so as to be scooped and the tip of the claw 56 is located near the edge of the pot portion 40 (see FIG. 17), the cam 69 of the push-out link 66 contacts the crank pin 46. Then, the pushing 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 pawl 56 is pierced into the soil-applied seedling C from an oblique direction. At this time, the support member 74 supports the bottom portion of the pot portion 40 at the seedling take-out position to prevent the seedling tray 41 from being deformed, and the seedling take-out pawls 56 can stably take out the soil-applied seedlings C. Thereafter, the same operation as above is repeated.

That is, the claw operating mechanism 42 includes the seedling take-out 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. As shown in FIG. 16 and FIG. 17, when the tip of the claw 56 enters the seedling soil C of the pot portion 40, the leaf C1 is scooped into the seedling soil C, and the plunge start position when plunging is the opening of the pot portion 40. It is one side near the edge (downward), and when entering the depth direction inner part of the pot portion 40 from this position, it enters like a wedge with respect to the center of the seedling C, and after entering, the opening edge of the pot portion 40. Near other side (upper)
Is the exit end position, and while scooping the seedling soil C at the time of this exit, cutting root hairs, etc. On the other hand, the root hair or the like can be reliably taken out, and the locus of the tip movement of the claw 56 is substantially V-shaped as shown in FIG.

In FIGS. 7 to 17, 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 (return The locus X of the tip portion of the seedling take-out nail 56 in the process) is shown by a dashed line, and the locus Y of the tip portion of the seedling take-out nail 56 in the going process is shown 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 portion 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). By reciprocating the drive arm 80 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 central angle corresponding to one pitch of the pot portion 40, and engages with the first positioning recesses 85 in a disengageable manner. 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 to be supplied to the ridges 14 is provided in a substantially central portion of the traveling vehicle body 12 (between the front wheel 25 and the drive wheel 24). 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.

The embodiment of the present invention is as described above, but the design can be changed as follows. Claw movement mechanism 4
2 and the transport device 43 with their front and back turned, or left and right, and the seedling transplant part 37 has a rotary form. Furthermore, the present invention can be applied to a passenger transplanter, Further, the roller 53B of the guide plate 52 is connected to the drive cam 45.
A coil spring 52 as shown in FIG.
Hanging C and so on.

[0045]

As described in detail above, according to the present invention, the leaves are picked up by the nails before the seedling take-out nails are rushed into the seedling soil to take out the seedlings from the pot portion of the seedling tray. It does not break through or fall off the leaves, and the seedlings can be taken out in a state where they have been vegetated reliably, improving the viability and growth after transplantation.

[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 operating mechanism when the extracted soil-embedded seedling is started to be sent to the transplanting section.

FIG. 10 is a side view of the claw operating mechanism when the soil seedling is being fed.

FIG. 11 is a side view of the claw operating mechanism immediately before the end of feeding the soil seedlings.

FIG. 12 is a side view of the claw operating mechanism when the soil-grown seedlings are transferred to above the transplanting section.

FIG. 13 is a side view of the nail operating mechanism when the soil-grown seedling is detached from the seedling take-out nail.

FIG. 14 is a side view of the nail operating mechanism when the seedling take-out nail is moved to the seedling tray.

FIG. 15 is a side view of the claw operating mechanism when the seedling take-out claw is in the middle of going forward.

FIG. 16 is a side view of the nail operation mechanism showing the scooping of leaves by the seedling take-out nail.

FIG. 17 is a side view of the claw operating mechanism showing the plunge start position of the seedling take-out claw.

FIG. 18 is a side view of the transplanter.

FIG. 19 is a plan view of the transplanter.

[Explanation of symbols]

 40 Pot part 41 Seedling tray 42 Claw movement mechanism 53 Claw guide means 56 Seedling extraction claw C Seedling soil C1 leaf

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Moto Nishio 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Factory Co., Ltd.

Claims (2)

[Claims] 1. A pot section (4) in a seedling tray (41).
A method of taking out the seedlings (C) from the pot part (40) by inserting and withdrawing the seedling take-out nails (56) into the seedlings (C) of 0), and starting the plunging into the seedlings (C). When the seedling take-out claw (56) is advanced to the position, leaves (C1) of the seedling soil (C)
Advance so as to scoop, and enter the seedling take-out claw (56) from the plunge start position toward the depth direction inner part of the pot part (40) to pierce the seedling soil (C), and thereafter, A seedling taking-out method for a transplanting machine, wherein the seedling soil (C) is taken out from the pot part (40) by retracting the seedling taking-out nail (56) from the pot part (40). 2. The pot section (4) in the seedling tray (41)
A device for taking out the seedlings (C) from the pot part (40) by plunging and leaving the seedlings taking nails (56) in the seedlings (C) of (0), A claw operation mechanism (42) for reciprocating the seedling soil (C) by reciprocating with respect to the seedling soil (C) of the pot section (40) in the seedling tray (41) is provided. When the seedling take-out claw (56) is advanced to the rush start position with respect to the seedling soil (C), it is advanced so as to scoop the leaf (C1) of the seedling soil (C), and the pot portion is moved from the rush start position. A seedling taking-out device for a transplanting machine, which is provided with a claw guide means (53) for allowing the seedling taking-out claw (56) to enter and withdraw from the depth direction inner part of (40).