JPH09107735A - Seedling taking out of transplanter and seedling taking out apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for taking out seedlings of a transplanter so as not to damage seedling leaf when seedling take-out claw is protruded into soil-attached seedling of a seedling tray and seedlings are taken out and transferred and provide an apparatus therefor. SOLUTION: This seedling take-out apparatus is equipped with a seedling take-out claw 4 capable of protruding into soil-attached seedlings 5 in a pot part 3 of a seedling tray 2, a claw operating mechanism 10 for protruding the seedling take-out claw 4, moving the seedling take-out claw 4 from the seedling tray 2 to a seedling transplanting device 35, taking out soil-attached seedlings 5 from the seedling tray 2 and transferring the seedling 5 and dropping the seedlings 5 from the above into the transplanting device 35, an evacuating means 105 for evacuating seedling leaf 5a of soil-attached seedling 5 covered by protruding locus from the locus when the seedling take-out claw 4 is protruded into the soil-attached seedlings 5 and a retreating mechanism 101 for retreating the evacuating means 105 from the seedling leaf 5a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling taking-out method and a seedling taking-out apparatus for a transplanter for transplanting vegetables such as cabbage, lettuce, Chinese cabbage, and broccoli.

[0002]

2. Description of the Related Art Vegetable transplanters for raising seedlings in seedling trays having pot portions in a vertical and horizontal lattice arrangement, and taking out soiled seedlings from the pot portions and transplanting them are known. ing. As disclosed in Japanese Patent Laid-Open No. 4-330211, a vegetable transplanter of this type has a pair of seedling take-out nails that are capable of rushing into soiled seedlings in a pot portion of a seedling tray, and a pair of these paired nails. A claw support provided at the tip of the seedling picking claws apart from each other, a pair of claw guides for guiding the advance and retreat of a pair of seedling picking claws, and a holder for supporting the claw support and the claw guide so as to be reciprocally movable. , And a claw operation mechanism that reciprocates the claw support and the claw guide.

[0003] Then, the seedling picking nail is inserted into the soiled seedling from the tip side of the leaf and then withdrawn to take out the soiled seedling from the opening of the pot portion, and the taken out soiled seedling is transferred to above the planting device. Then, after setting the nail support and the nail guide in a substantially downward posture corresponding to the planting cylinder, move the nail guide to the tip side of the seedling picking nail, and detach the soiled seedling taken out by the seedling picking nail from the seedling picking nail. Then, it is designed to be dropped and supplied to the planting device.

[0004]

By the way, the soiled seedlings raised in the seedling tray may contain soft saplings and the like. In such a case, the seedlings are removed by the nails. When taking out the seedlings, the leaves of the seedlings may hang down drastically and cover the entry path of the seedling picking nail with the soiled seedlings. In addition, there are cases where the seedlings with soil are spread out so that the seedlings protrude beyond the pot part, and in this case as well, the lobes of the seedling ejection claws may be covered by the seedling leaves. .

In the above-mentioned case, in the conventional transplanting machine, since the seedling take-out nail is thrust into the soil-bearing seedling from the tip side of the seedling leaf, the drooping leaf or the spread leaf is pierced by this thrusting and damaged. There was something to do. In addition, in order to solve this problem, the seedling take-out claws are brought closer to the bottom of the soil-containing seedling leaves, and the seedling take-out claws are used to scoop the seedling leaves while moving forward to pierce the soil-bearing seedlings for removal. However, when the seedlings are picked up with the picking nails in this way, the nails may pierce in a forward movement with the claws in direct contact with the seedlings, which may bend or break the seedlings. Was left.

[0006] Therefore, the present invention is a method of removing seedlings from a transplanter capable of preventing damage to the seedling leaves in the process of plunging a seedling picking nail into a soiled seedling, picking it up from a seedling tray, transferring it, and dropping it into a seedling planting device. And a seedling take-out device.

[0007]

The present invention takes the following technical means in order to achieve the above object. That is, the soiled seedlings 5 are seeded by inserting the seedling removal nails 4 into the soiled seedlings 5 in the pot portion 3 of the seedling tray 2 and moving the seedling removal nails 4 from the seedling tray 2 to the seedling planting device 35. A seedling taking-out method of a transplanting machine which takes out from the tray 2 and transfers it to the seedling planting device 35, and drops the soil-bearing seedlings 5 into the seedling planting device 35 from above. When plunging into the soil-bearing seedlings 5, the seedling leaves 5a of the soil-bearing seedlings 5 covered by the plunging trajectory of the seedling-picking nails 4 are retracted from the trajectory by the retracting means 105, and the seedling-retrieving nails 4 are thrust into the soil-bearing seedlings 5. In the process of dropping the soil-bearing seedlings 5 into the seedling planting device 35 after this, the evacuation means 105 is used to remove the soil-bearing seedlings 5 from the seedling leaves 5a.
It is characterized in that it exits in a substantially height direction.

According to this, when the seedling take-out nail 4 is pierced into the soil-bearing seedling 5, the retracting means 105 retracts the seedling leaf 5a from the entry locus of the seedling take-out nail 4, so that the seedling take-out nail 4 is moved to the seedling leaf 5a. Almost no damage is caused by piercing the seedlings, and further, after the seedling take-out nails 4 are thrust into the soil-bearing seedlings 5, the evacuation means 105 is moved in the substantially height direction of the soil-bearing seedlings 5, that is, in the extending direction of the seedling leaves 5a. Since the retreating means 105 is retreated from the seedling leaf 5a, the seedling leaf 5a is hardly bent.

Further, the retreating means 105 is retracted to the seedling leaf 5a by dropping the soil-bearing seedling 5 when the soil-bearing seedling 5 is dropped into the seedling planting device 35. How to remove seedlings from the machine. According to this, 5 seedlings with soil
By retracting the retracting means 105 with respect to the seedling leaf 5a by using the fall when dropping the seedlings into the seedling planting device 35, it is not necessary to provide a mechanism for moving the retracting means 105 itself, and the structure is simplified. It is possible.

The seedling take-out device of the transplanter of the present invention is
The seedling take-out claw 4 capable of plunging into the soil-containing seedling 5 in the pot section 3 of the seedling tray 2 and the claw operation mechanism 10 for moving the seedling take-out claw 4 from the seedling tray 2 to the seedling planting device 35 are provided. By moving the seedling take-out nails 4 by the nail operating mechanism 10, the soil-bearing seedlings 5 are taken out from the seedling tray 2 and transferred to the seedling planting device 35, and the soil-bearing seedlings 5 are placed above the seedling planting device 35. A seedling taking-out device of a transplanter adapted to be dropped from the seedling taking-out nails 4 when the seedling taking-out nails 4 are thrust into the soil-bearing seedlings 5.
Is equipped with a retracting means 105 for retracting the seedling leaves 5a of the soil-bearing seedling 5 covered with the soil-seeding seedling 5 from the above-mentioned trajectory, and the seedling take-out nails 4 are thrust into the soil-bearing seedling 5 and then the seedling planting device 35 is provided with the soil-bearing seedling 5
Retracting mechanism 1 for retracting means 105 in the process of dropping seeds 5 in the substantially height direction of soil-bearing seedlings 5 with respect to seedling leaves 5a.
It is characterized by having 01.

According to this, similar to the above-mentioned invention according to claim 1, when the seedling take-out nail 4 is pierced into the soiled seedling 5, the seedling leaf 5a is damaged, and the retreating means 105 is used as the seedling leaf 5a.
The seedling leaf 5a is prevented from being bent when it is withdrawn from Then, when the seedlings 5 with soil are dropped into the seedling planting device 35, the seedlings 5 with soil are dropped so that the retreating means 105
It is characterized in that the retreat mechanism 101 is configured to retreat the seedlings 5a to the seedling leaves 5a.
By using the fall when dropping the seedlings into the seedling planting device 35, the retracting means 105 is withdrawn from the seedling leaf 5a, and there is no need to move the retracting means 105 itself to withdraw and simplify the configuration. You can

Further, according to the present invention, the retracting means 105 is
It is characterized in that the seedling take-out claw 4 is fixed to a holder 9 that holds the soiled seedling 5 so as to be able to move out and out, and it is possible to easily and inexpensively provide the retracting means 105.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 13, the vegetable transplanter 21
Is the steering wheel 20 at the rear of the traveling vehicle (traveling body) 22.
It is a walking type having a ridge and running in the longitudinal direction across the ridges while planting the seedlings 5 with soil at a predetermined interval in the ridges covered with the mulch film.

The traveling vehicle 22 has a pedestal 24 at the front,
An engine 25 is mounted on the pedestal 24, the engine 25 is covered with a bonnet 26, a mission case 27 is fixed to a rear portion of the pedestal 24, and a front portion of the device frame 24 is attached to a rear portion of the mission case 27. Is fixed, and the rear portion is bent upward to serve as a mounting portion for the handle 20. The power of the engine 25 is transmitted to the mission case 27 by a power transmission mechanism.

The power input into the mission case 27 is transmitted to the wheel transmission shafts 28 projecting to the left and right sides, and is also provided behind the wheel transmission shafts 28 to project to the left and right sides of the first PTO. It can be taken out from the shaft 29 and the second PTO shaft 30 protruding upward and rearward. Left and right rear wheels 32 are supported on both left and right ends of the wheel transmission shaft 28 via transmission cases 31 which are vertically swingable about their axes, and the rear wheels 32 are supported on the rear wheels 32 by the wheel transmission shaft 28 and the transmission case 3.
The power of the engine 25 is transmitted via the power transmission mechanism in 1. Further, a pair of left and right front wheels 33 and a ridge height detection roller 36 are provided at the front part of the traveling vehicle 22.

At the rear part of the traveling vehicle 22, a transplanting work part 37 is provided.
Is provided. The transplanting work section 37 includes a seedling supply device 39, and a soiled seedling 5 supplied from the seedling supply device 39.
The planting device 35 has a planting tube 43 for planting the plant in a ridge by the planting cylinder 43, and a multi-film punching device 38 for pre-punching holes for transplantation in the multi-film at positions where seedlings are planted.
The seedling supply device 39 is driven by the rotational power of the second PTO shaft 30, and the planting device 35 and the multi-piercing device 38 are driven by the rotational power of the first PTO shaft 29.

The planting cylinder 43 is provided with an opener that can be opened and closed at the bottom, and the opener opens back and forth when it enters the ridge at the lower end side of the elliptical locus to form a planting hole, and this planting hole is formed. Seedlings with soil supplied at the upper end of the locus
Can be planted. The planting device 35 and the mulch film punching device 38 are provided in the mission case 27.
It is provided on a movable frame 41 supported by the first PTO shaft 29 so as to be vertically swingable. This movable frame 41
The rear end of the movable frame 41 is suspended from the apparatus frame 23 so that the vertical position of the rear end can be adjusted.

1 to 13, the seedling supply device 39 is
A seedling tray 2 mounted on the device frame 23 and having a large number of pot portions 3 in which soil-bearing seedlings 5 have been raised are arranged vertically and horizontally.
The soiled seedlings 5 are taken out one by one by the seedling taking-out nails 4 at a predetermined seedling taking-out position from the feeding device 34 for transferring the seedlings horizontally and vertically and the seedling tray 2 on the carrying device 34. The seedling removing device 1 is configured to drop the seedlings 5 into the planting cylinder 43 after the seedlings 5 are transferred to above the planting device 35.

The seedling tray 2 is made of resin and has flexibility, and a large number of longitudinally and laterally arranged pot portions 3 are formed so as to open to the front and project to the back. 5 have been raised. The seedling take-out device 1 guides a pair of needle (chopsticks) shaped seedling take-out nails 4, a nail support 8 provided with the pair of seedling take-out nails 4 at its tip, and a pair of forward and backward movements of the seedling take-out nails 4. A claw guide 6, a claw support 8 and a holder 9 that supports the claw guide 6 so as to be reciprocally movable in the longitudinal direction, and a claw operation mechanism 10 that appropriately operates the claw support 8 and the claw guide 6. ing. In order to prevent the seedling take-out nails 4 from piercing the seedling leaves 5a of the soil-bearing seedlings 5 when taking out the soil-bearing seedlings 5 from the seedling tray 2, the seedling leaves 5a are lifted to the entry path of the seedling-taking nails 4. It has a seedling leaf retraction device 104 for retracting so as not to cover it.

The pawl operating mechanism 10 reciprocates the seedling take-out pawl 4 between the seedling tray 2 and the planting cylinder 43 while changing the posture thereof. The support frame 14 fixed on the device frame 23 is used. The support frame 14 is provided with a crank body 52, which is rotationally driven counterclockwise in FIGS. 1 to 5 by a rotary power from the second PTO shaft 30, on the rotary shaft 51. A crank pin 53 is provided on the crank body 52 so as to project laterally, and a drive cam 62 is provided coaxially with the crank body 52.

A lower portion of the swing arm 54 is pivotally connected to the support frame 14 below the crank body 52 by a swing shaft 54A, and a middle portion of the swing arm 54 is vertically (arm lengthwise). Direction) is formed, and the crank pin 5 of the crank body 52 is formed in the groove cam 55.
3 is inserted and engaged. The groove cam 55 has a shape in which a reverse circular arc portion and a straight linear portion are continuously formed at both ends of the central circular arc portion, and the circular arc portion and the reverse circular arc portion are connected to each other by a smooth curved line without angular boundaries.

Thus, the pawl operating mechanism 10 shortens the time during which the oscillating arm 54 oscillates in the return stroke Y for taking out the soil-containing seedlings 5 from the pot portion 3 by the seedling take-out pawls 4. Then, the movement of the seedling 5 with soil is taken out from the pot portion 3 and delivered to the planting cylinder 43 during the forward stroke X.
A fast-return mechanism is configured to increase the time of the swinging motion of the swinging arm 54 so as to move slowly.
The soild seedlings 5 are returned quickly while being prevented from falling during transfer, thereby improving the efficiency of seedling removal and supply.

A holder 9 is pivotally connected to the upper part of the swing arm 54 via a pin 54B. This holder 9 is a pin 5
A portion provided with 4B is formed in a tubular shape, and a pipe-made claw support 8 is inserted and guided in the tubular portion so as to be axially movable, and the claw support 8 is a seedling of the carrier device 34. It is possible to move in and out of the tray 2. A pair of seedling take-out nails 4 which are pierced obliquely into the soiled seedlings 5 in the pot portion 3 are attached to the tip end portions of the nail supporters 8.

A roller 57 is attached to the holder 9 via a bracket 56 so that the roller 57 can rotate freely.
Is a cam groove 60 formed in a guide plate 59 that is swingably attached to the upper portion of the support frame 14 via a pin 58.
Is engaged. The guide plate 59 has a rolling roller 61 at the tip of the protruding arm, and the rolling roller 61 is in contact with the drive cam 62, and the guide plate 59 is pinned by the counterclockwise rotation of the drive cam 62. It is possible to swing about 58.

The swinging of the guide plate 59 around the pin 58 is such that when the seedling picking-out claw 4 advances toward the pot portion 3,
From the front of the rush start point (see Fig. 1), pinch the tip of the seedling take-out nail 4 with the pin 5 so that the leaf of the seedling 5 with soil is scooped from below.
4B is swung, and the posture of the holding body 9 (in particular, the relative angle of the holding body 9 with respect to the swing arm 54) according to the swing angle of the swing arm 54 is regulated.

When the soil-bearing seedlings 5 taken out from the pot section 3 are transferred to the upper part of the planting cylinder 43 (from the state shown in FIG. 2 to the state shown in FIG. 4), the seedling take-out nails 4 are enlarged. The seedlings 5 with soil are moved to a substantially vertical position while being moved downward and rearward. Therefore, the rear side (left side in FIG. 2) of the cam groove 60 is shaped to move the roller 57 in a direction away from the swing shaft 54A of the swing arm 54.

As shown in FIGS. 7 to 10, the claw support 8 is retracted on the outer periphery of the claw support 8 between the base body 65 provided at the base end thereof and the tubular portion of the holding body 9. A coil spring 66 that urges in the direction is interposed, and a claw attachment 67 is fitted and fixed to the front end portion of the claw support 8. The bases of the pair of seedling take-out nails 4 are pivotally supported by the nail fittings 67 via shafts 4a or by bending the bases of the seedling take-out nails 4 at right angles, and the pair of seedling take-out nails 4 is The claw attachment 67 is swingable so that the tip moves far and near.

An extruding link 6 is provided at the lower end of the holder 9.
8 is rotatably connected via a pin 69. A long groove (or long hole) 70 is formed at the tip of the push-out link 68, and is engaged with a pin 71 provided on the protruding arm of the claw attachment 67. The push-out link 68 is provided with a cam plate 73 having a substantially arcuate shape.
The crank pin 53 can be contacted. That is, when the swing arm 54 reaches the swing end on the side of the transport device 34 (see FIG. 1), the pushing link 68 swings via the cam plate 73 by the rotating crank pin 53, and the holding body is held. The claw attachment 67 and the claw support 8 are pushed toward the conveyance device 34 side with respect to 9, and the coil spring 66 is compressed. As a result, the seedling take-out nail 4 projects and the nail support 8
Will have the resilience to retreat.

Reference numeral 6 denotes a claw guide which is slidably inserted in the claw support 8, the base body 65 and the claw attachment 67 in the longitudinal direction, and is formed of a round bar or the like, and the guide portion 1 is provided at the front end thereof.
The member forming 1 is attached across both seedling picking nails 4,
An L-shaped plate-like operating member 76 in side view is attached to the rear end, and a stopper 77 is fixed in the middle thereof.
A spring 78 is fitted between and.

As shown in FIGS. 7 to 10, the claw guide 6 has two
They are arranged in a triangle with respect to the seedling take-out nails 4 of the book, and two claw insertion holes 11a are formed in the guide portion 11. The distance between the left and right claw insertion holes 11a is the interval K between the left and right seedling take-out nails 4.
It is set to be narrower than (the distance between the shafts 4a, which are pivotal portions). Therefore, when the seedling take-out nail 4 and the nail guide 6 move relative to each other, the distance L between the tip ends of the seedling take-out nail 4 changes. That is, when the guide portion 11 is located on the tip side of the seedling taking-out nail 4, the distance L between the nail tips is widest, and if the guide portion 11 is immovable and the seedling taking-out nail 4 is projected from this state, the seedling Extraction claw 4
The base side of the claw approaches the guide part 11, and the distance L between the claw tips gradually narrows.

Therefore, when the soil-bearing seedlings 5 are taken out from the pot part 3, when they are moved forward, the tips of the left and right seedling-picking claws 4 approach each other while sticking out, with respect to the left and right centerlines S of the soil-bearing seedlings 5. It will move on an inclined substantially linear orbit. When the soil-containing seedlings 5 are taken out by the seedling take-out nails 4 and the guide portion 11 of the nail guide 6 is moved from the state of being located at the base side of the seedling take-out nails 4 to the tip side, the nail tip-to-tip distance L becomes From the narrow state to the wide state, the guide portion 11 comes into contact with the soiled seedling 5 and pushes it out of the seedling take-out nail 4 in parallel with this. At this time, the tip of the seedling take-out claw 4 with respect to the soil-bearing seedlings 5 comes out in the same orbit as the rushed-in trajectory, and damage to the soil-bearing seedlings 5 is suppressed to the minimum at the time of rushing and leaving.

In the side view shown in FIG. 7 etc., the seedling take-out claw 4 has a center line S of the soil-bearing seedling 5 in the pot portion 3,
Since the seedlings with soil 5 are in a truncated truncated quadrangular pyramid shape on the surface side (opening edge side of the pot part 3), they are arranged so as to be distant and approach on the bottom surface side.
Since the two seedling take-out nails 4 are pierced from the corner to the center of the bottom face, the leaves and roots of the soil-bearing seedlings 5 are not pierced, and in addition to that, the tips of the left and right seedling take-out nails 4 are narrowed. It does not collide with the vicinity of the bottom of No. 3.

7 to 11, an operating piece 81 is pivotally supported on the holding body 9 via a shaft 82 and is urged in the clockwise direction in FIG. 9 by a spring.
It has a substantially T-shape having a book leg and both left and right arms, and a lock portion 81A is formed on the left arm, a release portion 81B is formed on the right arm, and a pushing portion 81C is formed on the foot. The actuating member 76 fixed to the claw guide 6 has a portion 76A parallel to the claw guide 6, and this portion 76A is guided by the holding body 9 in a non-rotating state and protrudes on the sliding surface thereof. The movement of the claw guide 6 in the protruding direction is restricted by engaging with the lock portion 81A of the operation piece 81.

A lock arm 83 is pivotally supported on the base body 65 at the rear end of the pawl support body 8.
Is urged clockwise by a spring, and an engaged portion 83a engageable with the engaging portion 9a of the holding body 9 is provided on the front side.
, An inclined surface 83b, and a projection 83c protruding forward are formed. When the claw support 8 is projected, the engaged portion 83a of the lock arm 83 is engaged with the engaging portion 9a of the holding body 9 to maintain the state, and the operating piece 81 is rotated to lock the claw support 8. The lock of the actuating member 76 with respect to the portion 76A by 81A is released, the claw guide 6 projects, and the portion 76A abuts the inclined surface 83b.
Even if the engaged portion 83a is disengaged from the engaging portion 9a, and the disengagement is incomplete, the release portion 81B pushes up the projection 83c by the further rotation of the operating piece 81, and the engaged portion 8a.
3a is forcibly disengaged from the engaging portion 9a.

The pushing portion 81C of the actuating piece 81 is adapted to be rotated by contacting a lock releasing member 84 provided on the guide plate 59, the position of which can be adjusted freely. 4 is brought into a substantially downward posture, it comes into contact with the lock releasing member 84 to cause the claw guide 6 to project, and thereafter the claw support 8 is retracted together with the claw guide 6. The lock releasing member 84 is formed of a bolt or a pin.

The holding body 9, the crank body 52, the drive cam 62, the swing arm 54, the guide plate 59 and the push-out link 6
8 and the like supports the nail guide 6 and the nail support 8 and the like.
The nail moving mechanism 10 that moves while changing the posture to a substantially downwardly facing seedling detachment posture, takes out the soil-bearing seedlings 5 in the seedling removal posture, and drops the soil-bearing seedlings 5 in the seedling detachment posture. It is configured.

Further, the operating piece 8 having the lock portion 81A
1, the operating member 76, the lock arm 83, and the like, when the claw guide 6 is moved to the claw tip side, the claw support 8 and the claw guide 6
The return interlocking means 12 for simultaneously retracting and is configured, and the operation piece 81 having the releasing portion 81B, the lock arm 83, and the like constitute the return ensuring means 13 for ensuring the return operation of the claw support 8 after the operation of the return interlocking means 12. Has been done.

In FIGS. 1 and 4, reference numeral 15 denotes a rounded tongue-shaped removal guide body whose upper and lower sides and front sides are open, which is attached to a bracket 87 protruding from the support frame 14 so as to be positionally adjustable, and a planting device 35. Is arranged above the planting cylinder 43. The detachment guide body 15 surrounds the seedling taking-out nail 4 and the nail guide 6 when the seedling taking-out nail 4 is in a substantially downward (slightly inclined) posture, and is detached from the seedling taking-out nail 4 by the nail guide 6. The soiled seedling 5 is brought into contact with the soiled seedling 5 to guide its fall, and the soiled seedling 5 is held in an appropriate posture or an incorrect posture is corrected. The separation guide 15 is made of metal,
It can be formed into a flat plate shape, a half cup shape or a rod shape with a synthetic resin, a spring material, etc., and the contact surface with the soil-bearing seedlings 5 is formed into a shape that can guide the soil-bearing seedlings 5 in an appropriate posture. ing.

The transfer device 34 includes a movable frame 91 which is supported by a support frame fixed to the device frame 23 so as to be laterally moved and supported via guide rails or the like. This movable frame 91 is arranged in a front downward slope,
Is a movable frame 91 so that the opening of the pot portion 3 faces the front upper direction.
It is configured to be loaded from the upper side along the rear surface of the movable frame 91, to be horizontally fed in the left-right direction by the lateral movement of the movable frame 91, and to be vertically fed downward in the movable frame 91.

As shown in FIG. 12, the movable frame 91 has a support plate 93 for supporting and guiding the bottom portion of the seedling tray 2 (that is, the bottom portion of the pot portion 3) across the pot portions 3 arranged in a row, and the support plate 93. It is provided with side covers 92 on both left and right sides of 93. The support plate 93 is extended to the pot part 3 at a position where the seedlings with picked-up nails 4 pick up the soil-containing seedlings 5, and the tip of the support plate 93 causes the seedlings-picked nails 4 to move to the soiled seedlings 5. It serves as a backing member 89 for preventing the seedling tray 2 from bending when it is pierced and for stably taking out the soiled seedlings 5 by the seedling taking-out nails 4.

As shown in FIG. 12, a lateral feed shaft 102 having an endless spiral groove is rotatably supported on the support frame, and the lateral feed shaft 102 can transmit power from the seedling extracting device 1 side. This horizontal feed shaft 102
Between the movable frame 91 and the movable frame 91 is provided with a lateral feed mechanism 103 for laterally feeding the movable frame 91, and the lateral feed mechanism 103 can laterally feed the movable frame 91 in the left-right direction over substantially the entire width of the seedling tray 2. I have to.

A horizontal shaft 94 is rotatably attached to the lower portion of the movable frame 91, and a pair of left and right vertical feed wheels 95 are provided on the horizontal shaft 94 via a one-way clutch. A chain 97 is hooked over the driven wheel provided on the upper portion of the movable frame 91, and a transport pin 98 that engages with the gap between the pot portions 3 in the vertical direction is attached to the chain 97. In addition,
The vertical feed wheel 95, the driven wheel, the chain 97, etc. are covered by a side cover 92.

A space between the horizontal feed shaft 102 and the horizontal shaft 94 corresponds to one pitch between the pot portions of the seedling tray 2 when the movable frame 91 fed laterally reaches the end of its horizontal movement. Intermittent feed means 99 for intermittently moving the chain 97 through the vertical feed wheel 95 by a distance is provided, and the vertical feed wheel 95, the chain 97, the transport pin 98, the intermittent feed means 99 and the like feed the seedling tray 2 laterally. An intermittent vertical feed mechanism 100 that vertically feeds one pitch later is configured.

Seedling leaf retracting device 104 in seedling extracting device 1
As described above, in order to prevent the seedling take-out nails 4 from sticking the seedling leaves 5a of the soil-bearing seedlings 5 when taking out the soil-bearing seedlings 5 from the seedling tray 2, the seedling leaf 5a is inserted into the seedling taking-out nails 4. It is to evacuate from the locus, and as shown in FIGS.
Retreating means 105 for lifting seedling leaf 5a when seedling take-out nail 4 plunges into soiled seedling 5, and withdrawal means 105 is moved back and forth with movement of seedling take-out nail 4 from seedling take-out position to planting position. And a moving mechanism 109 for moving the retracting means 105.
Can be moved in the left-right direction as the movable frame 91 of the transfer device 34 is moved laterally.

The moving mechanism 109 includes a left and right support leg 110 pivotally supported by a side cover 92 of a movable frame 91 of the transfer device 34 via a shaft portion 111, and a left and right support leg 110.
The shaft rod 106 is rotatably bridged between the upper ends of the shafts 10, and the evacuation means 105 is provided on the shaft rod 106 over the entire width of the seedling tray 2 at predetermined intervals in the left-right direction (in the seedling tray 2). It is fixed (corresponding to the interval between the left and right pot portions 3). A rear end of the connecting member 115 is pivotally connected to the support leg 110 at an upper and lower middle portion thereof, and a front end of the connecting member 115 is connected by a rod 116, and the supporting leg 110 slides in the left-right direction on the rod 116. A guided crank portion 117 is swingably provided on the support frame 14 via a pin 119.

The crank portion 117 is formed in a substantially V shape, and its rear end (lower end) portion is connected to the rod 116 so as to be slidable in the left-right direction. The crank portion 117 is pivotally supported by the pin 119 at its bent portion and at the front end ( A contact roller 118 is provided at the upper end portion. The contact roller 118 corresponds to the drive cam 6 described above.
2, the crank portion 117 is swung by the counterclockwise rotation of the drive cam 62.

That is, the rotation of the drive cam 62 causes the crank 117 to swing about the pin 119 as a fulcrum, which causes the connecting member 115 to move back and forth through the rod 116, and the supporting leg 110 to move back and forth about the shaft 111 as a fulcrum. I am trying to rock it. A projecting piece 108 is provided on the shaft portion 111 of the support leg 110, and an elastic means 113 such as a tension spring is provided between the projecting piece 108 and a fixed pin projecting on the side cover 92 of the movable frame 91. And the elastic means 11
The support leg 110 is urged rearward by 3. Therefore, by biasing the support leg 110 rearward by the elastic means 113, the contact roller 118 of the crank portion 117 is pressed against the drive cam 62.

Further, projecting members 108 are provided so as to project at both ends of the shaft rod 106 between the supporting legs 110.
An upper end portion of an actuating member 114 is pivotally connected to 8, and a lower end portion thereof is pivotally connected to a side cover 92 of a movable frame 91. That is, when the support leg 110 swings back and forth, the actuating member 114 acts to rotate the shaft 106 around its axis through the projecting member 108, and the retracting means 105 fixed to the shaft 106.
Is swingable around the axis of the shaft rod 106.

The retracting means 105 is a brush formed by bundling wires made of metal or resin, or a rubber plate or a metal plate. This evacuation means 105
Is preferably formed of a material that does not damage the seedling leaf 5a of the soil-bearing seedling 5 when it is pressed, and therefore has elasticity (flexibility) such as a brush shape or a rubber plate shape.
Is preferably formed so that A plurality of evacuation means 105 are provided corresponding to the left and right of the pot portion 3 of the seedling tray 2 mounted on the movable frame 91, and the pot of the seedling leaf 5a of the soil-bearing seedling 5 grown in the pot portion 3 is provided. The part that spreads to the left and right from the part 3 is pressed down so that only the seedling leaf 5a comes into contact with the retreat means 105 so that the stem part of the soil-bearing seedling 5 is not damaged.

Next, the seedling taking-out operation of the seedling taking-out nail 4 by the nail operating mechanism 10 and the operation of the seedling leaf retracting device 104 will be described. In addition, in FIGS.
The path X of the tip of the seedling take-out claw 4 in the seedling taking-out process (forward stroke) from the time of piercing the seedling to the time of dropping the soil-bearing seedling 5 above the planting cylinder 37 is indicated by a chain line, and Extraction claw 4
The locus Y of the tip of the is indicated by a two-dot chain line.

In the state shown in FIGS. 1 and 8, the holder 9 is the seedling tray 2
To the seedling tray 2 so that the tip of the guide portion 11 scoops up the leaves of the soil-bearing seedling 5 from the lower side, and the seedling ejecting nail 4 is brought to this state. The rocking of the rocking arm 54 is being decelerated when moving up. At this time, the support leg 110 of the seedling leaf retracting device 104 is in a state of swinging backward, and the retracting means 105
Holds down the seedling leaves 5a of the soil-bearing seedlings 5 from below and retracts the seedling-picking claws 4 so that the seedling leaves 5a do not cover the locus of entry into the soil-bearing seedlings 5.

The crank pin 53 is attached to the swing arm 5.
When rotating within the central arc portion of the grooved cam 55 of No. 4, the swing arm 54 does not swing and remains stationary, and the crank pin 5
3 swings the pushing link 68 around the pin 69 via the cam plate 73, and directs the nail support 8 and the seedling picking nail 4 to the soiled seedling 5 in the pot portion 3 via the nail fitting 67. To move forward.

At this time, as shown in FIG. 6, the claw guide 6
Is immovable because the operating member 76 is in contact with the operating piece 81, and the base body 65 advances, so that the spring 66,
78 is compressed, the engaged portion 83a of the lock arm 83 engages with the engaging portion 9a of the holding body 9, and the return operation is blocked. Further, since the seedling take-out claws 4 move forward with respect to the immovable guide part 11, the pair of left and right seedling take-out claws 4 are restricted by the claw insertion holes 11a of the guide part 11 which are narrower than the interval K between the pivot parts, and the seedling take-out claws 4 are cut. While advancing the tip of the and while narrowing the distance L between the tips of the nails, pierce the seedling 5 with soil. In a side view, the piercing direction of the seedling take-out nail 4 is inclined with respect to the center line S of the soil-bearing seedling 5, and the stalk and root of the seedling are not pierced. Also,
Since the seedling leaf 5a of the soiled seedling 5 is retracted by the retracting means 105, it does not directly touch the seedling ejection nail 4 and is not pierced by the seedling leaf 5a or bent by the advance of the seedling ejection nail 4. .

In this sticking state, the left and right seedling picking nails 4
Changes from a wide V-shape to a narrow V-shape from the two-dot chain line state in FIG. 10 to the solid line state. V of this seedling picking nail 4
In the state of letters, the soiled seedlings 5 are less likely to fall out than in the parallel state, can be taken out strongly from the pot part 3, and the soiled seedlings 5 are not pinched at the time of change. No damage to 5.

At this time, the bottom portion of the pot portion 3 at the seedling take-out position is supported by the backing member 89, and the seedling tray 2
The deformation of the seedlings is prevented, and the stable removal of the soil-bearing seedlings 5 by the seedling removal nails 4 is guaranteed. When the crank body 52 is rotated after the stab of the soil-containing seedling 5 with the seedling picking nail 4 is completed, the swing arm 54 swings leftward via the crank pin 53, so that both the seedling picking nail 4 and the nail guide 6 are seeded. Tray 2
And move on the forward movement trajectory X as shown in FIG. Since the groove cam 55 has an arcuate shape which is opposite to the central arcuate portion in this process, the rocking arm 54 is rocked at a high speed, which enables movement in a short time.

On the other hand, the seedling leaf withdrawal device 104 includes the drive cam 6
By the rotation of 2, the protrusion 62A gradually moves the contact roller 118 of the crank 117 to the rear, whereby the support leg 110 swings forward through the rod 116 and the connecting member 115. Then, the swing of the support leg 110 causes the actuation member 11 to move.
4, the shaft 106 rotates clockwise, and the retracting means 1
05 swings around the shaft rod 106. That is, the evacuation means 105 is moved forward with the movement of the seedling take-out nails 4 and is still in a state of lifting the soil-bearing seedlings 5, and when taking out the soil-bearing seedlings 5 from the seedling tray 2 with the seedling-taking nails 4. In addition, the retracting means 105 hardly damages the seedling leaf 5a such as bending.

When the holder 9 is moved along the forward trajectory X, the rollers 57 provided on the holder 9 are guided by the cam grooves 60 of the guide plate 59, whereby the seedling pick-up claws 4 and the claw guides 6 are in a substantially horizontal pick-up posture. 3 through the state shown in FIG. 3 to the substantially downward disengagement posture shown in FIG. 4 and the roller 57 moves to the vicinity of the rear end of the cam groove 60, the pushing portion 81 of the operating piece 81 is moved.
C starts to contact the unlocking member 84.

At this time, since the groove cam 55 has an arcuate shape that is opposite to the central arcuate portion, the rocking speed of the rocking arm 54 is reduced to a low speed over time. On the other hand, as shown in FIG. 3, in the seedling leaf retracting device 104, the contact roller 118 of the crank portion 117 abuts from the start point to the end point of the protrusion 62A by the rotation of the drive cam 62, so that the crank portion 11
7 swings greatly. Therefore, the support leg 110 also swings greatly and follows the movement of the seedling picking nail 4. The retracting means 105 also swings forward as the seedling take-out claw 4 moves due to the action of the actuating member 114. Then, the soiled seedlings 5 are gradually separated from the retracting means 105 by the posture change of the seedling take-out claw 4 to the state of FIG. 3 from FIG. 4 to the substantially downward posture. That is, soiled seedling 5
The retreating means 105 will retreat substantially in the height direction, and the seedling leaf 5a will not be damaged. Here, a nail movement mechanism 10 for changing the posture of the seedling take-out nail 4 to a substantially downward posture,
A moving mechanism 109 that moves the retracting means 105 forward and raises the retracting means 105 constitutes the retreating mechanism 101 that retracts the retracting means 105 with respect to the seedling leaf 5a.

Then, the contact roller 1 of the crank portion 117
When 18 passes the end point of the protrusion 62A of the drive cam 62, the contact roller 118 moves forward again while being pressed against the drive cam 62, and the support leg 110 is urged by the elastic means to swing rearward. . At this time, the retracting means 105 swings backward due to the shaft member 106 rotating counterclockwise by the action of the actuating member 114, and also lifts the seedling leaf 5a of the soil-bearing seedling 5 to be taken out next and raises the next seedling. The seedling leaf 5a is retracted from the entry trajectory of the extraction claw 4.

As shown in FIG. 4, when the operating piece 81 comes into contact with the lock releasing member 84 and starts to rotate (the operation of the return interlocking means 12), the lock portion 81A releases the lock of the operating member 76, and the claws are released. The guide 6 is elastically projected by the spring 78 that has been compressed until then, and as shown in FIG. 7, it advances to the tip side of the immovable seedling take-out nail 4 and pushes the soiled seedling 5 that has been pierced. Push it out and release it.

At this time, the guide portion 11 of the nail guide 6 is contacted with a large surface that does not damage the soil-bearing seedling 5, and the soil-bearing seedling 5 that has been detached is guided by the detachment guide body 15 and its posture is changed. It is made proper and is dropped toward the planting cylinder 43 of the planting device 35 to be delivered. When the pawl guide 6 is projected, the unlocked operating member 76 moves integrally, and as shown in FIG.
3 to be in contact with the inclined surface 83b and the engaged portion 83a and the engaging portion 9
Release the engagement of a. Therefore, the claw support 8 held in the protruding state is elastically retracted by the spring 66 in the compressed state.

At this time, the operating member 7 at the rear end of the claw guide 6
Since 6 is in contact with the back surface of the base body 65 via the cushion 88, the claw guide 6 is also retracted as the claw support 8 is retracted, and both are quickly retracted by the spring 66. Contact of the nail guide 6 with the leaves is avoided as much as possible. If the portion 76A cannot lift the inclined surface 83b of the lock arm 83 for some reason such as the movement resistance of the claw guide 6 being too large, the roller 5
When 7 moves to the rear end of the cam groove 60, the operating piece 81 is further rotated by the lock releasing member 84 to release the releasing portion 81B.
The lock arm 83 is rotated via the protrusion 83c (operation of the ensuring means 13) to forcibly disengage the engaged portion 83a from the engaging portion 9a, thereby ensuring the backward movement of the seedling take-out nail 4. As a result, even if the soiled seedling 5 on the seedling taking-out nail 4 cannot be removed by the nail guide 6, the seedling taking-out nail 4 is retracted so that the soiled seedling 5 is removed by hitting the nail guide 6. Become.

Then, as shown in FIGS. 5 and 9, both the seedling take-out claw 4 and the claw guide 6 are returned to the retracted position, and the operating member 7 is moved.
6 is locked. Rotation of the crank body 52 from this state causes the swing arm 54 to swing to the right, and
The holding body 9 is moved to the state described above while changing its posture, and the seedling take-out claw 4 is quickly returned on the backward trajectory Y. This return trajectory Y
When moving upward, the seedling picking nail 4 and the nail guide 6 are moved to the seedling tray 2
The protrusion of the drive cam 62 is located near the guide plate 59
It acts on the roller 61 of the No. 5 and is suddenly changed from the downward position to the substantially horizontal position, whereby the plunge start position (see FIG. 1) is picked up so that the leaves of the soil-bearing seedlings 5 are scooped up or scooped under the leaves. ) Advance to. At this time, since the evacuation means 105 has pressed the seedling leaf 5a in advance, there is no seedling leaf 5a in the entry trajectory of the seedling ejecting claw 4, and there is no damage to the seedling leaf 5a at the time of entry.

The soiled seedlings 5 are taken out from the seedling tray 2 by repeating the above steps, but the movable frame 91 for taking out the soiled seedlings 5 in a horizontal row of the seedling tray 2 is used.
For lateral feeding, the retreat means 105 uses the support legs 110.
Since it is fixed in the left-right direction to the movable frame 91 via the above, it is possible to follow, and it is not necessary to provide a special lateral movement device for the seedling leaf retraction device 104.

14 and 15 show a second embodiment of the present invention, in which the seedling leaf 5 of the soil-bearing seedling 5 of the present embodiment is shown.
The seedling leaf withdrawal device 104 for withdrawing a from the seedling take-out nail 4 is
It consists of a retracting means 105 and a moving mechanism 109,
The moving mechanism 109 is provided with a support leg 110 that is swingable back and forth with a shaft portion 111 provided at an appropriate location such as the support frame 14 or the device frame 23 as a fulcrum, and extends in the left-right direction at the upper end of the support leg 110. In addition, the upper end portion is pivotally connected to a connecting member 115 that connects the shaft rod 106, which is rotatable, and a midway portion in the longitudinal direction of the support leg 110, and the swing arm 54, and a protruding piece 108 protruding from the shaft rod 106. The lower end portion is composed of an operating member 114 pivotally supported at an appropriate place such as the support frame 14 or the device frame 23, and the retracting means 105 is
It is fixed to the shaft rod 106. The other configurations are the same as those in the first embodiment, and thus the same reference numerals are given.

The retracting means 105 in this embodiment is made of a brush shape, a rubber plate shape or the like as in the first embodiment, and is equivalent to one plant so that it acts only on the soil-bearing seedlings 5 taken out from the pot section 3. Only provided. Seedling 5
It is provided in a bifurcated shape corresponding to the left and right side portions of the pot portion 3 so as to contact only a and not to touch the stem portion or the like. As shown in FIG. 14, when the seedling take-out nails 4 plunge into the soiled seedlings 5 of the pot portion 3 of the seedling tray 2, the retracting means 105 moves from the plunge locus of the seedling take-out nails 4 as in the first embodiment. The seedling leaf 5a is lifted and retracted so that the seedling take-out nail 4 does not pierce and damage the seedling leaf 5a. Then, when the seedlings 5 with soil are taken out and transferred to the seedling planting device 35, the swing arm 54
The support leg 110 swings forward through the connecting member 115 as the plant swings forward, and the retracting means 105 follows the movement of the seedling take-out claw 4. Further, as the support leg 110 swings, the actuating member 114 swings forward through the projecting piece 108 and rotates the shaft 106 in the clockwise direction through the projecting piece 108. As a result, the retracting means 105 swings around the shaft 106 as a fulcrum and the posture is changed from the forward tilting posture to the rising posture, and the seedling take-out claw 4 is changed to the substantially downward posture by the claw movement mechanism 10. It is possible to correspond to the posture. Therefore, the retracting means 105 moves to the position of the seedling planting device 35 with the seedling leaf 5a being lifted as the seedling take-out nail 4 is moved by the nail operating mechanism 10, so that the pot portion 3
The seedling leaf 5a is not bent when the soiled seedling 5 is taken out from the soil, and the seedling leaf 5a is hardly bent even during the transfer of the soil seedling 5.

Then, after transferring the soil-bearing seedlings 5 to the seedling-planting device 35, the soil-bearing seedlings 5 are pushed out by the guide portion 11 of the claw operating mechanism 10 and fall into the planting cylinder 43.
By this fall, the retreat means 105 causes the seedlings 5 of the soil-bearing seedlings 5
From a, the seedlings 5 with soil are relatively withdrawn and moved in the substantially height direction. Here, the claw movement mechanism 10 for dropping the seedling 5 with soil into the seedling planting device 35 and the retracting means 105 are provided in the seedling planting device 3.
The retreating mechanism 101 is configured by a moving mechanism 109 that moves the soil up to 5 to change the posture substantially parallel to the height direction of the soil-bearing seedling 5.

As a result, the retreat means 105 is the soil seedling 5
Of the seedling planting device 35 is prevented from being damaged and the seedling planting device 35 is not damaged, and the earthed seedling 5 is dropped so that the retracting means 1
Since 05 can be withdrawn, there is no need to adopt a structure for moving the retracting means 105 itself upward, and the structure can be simplified.

16 and 17 show a third embodiment of the present invention. In this embodiment, a brush-shaped or plate-shaped retracting means 105 is fixed to the upper part of the holding body 9. As for the positional relationship with the seedling taking-out nail 4, the brush tip of the retracting means 105 is set back relative to the tip of the nail when the seedling taking-out nail 4 is retracted with respect to the nail guide 6. It is provided above the take-out claw 4 and substantially parallel to the claw 4. Other configurations (seedling extractor, carrier, etc.)
Are the same as in the first embodiment, and are denoted by the same reference numerals.

According to the present embodiment, when the seedling take-out claw 4 moves so as to scoop up below the soil-bearing seedling 5, as shown by the chain double-dashed line in FIG.
5 raises the seedling leaf 5a of the soil-bearing seedling 5 upwards and retracts the seedling leaf 5a from the entry trajectory of the seedling-picking nail 4, and the soil-bearing seedling 5 of the seedling-picking nail 4 is added to the seedling leaf 5a as in the first embodiment. There is no damage to the seedling leaves 5a at the time of plunging into the soil, and when the seedling take-out nail 4 is plunged into the soil-bearing seedling 5 and then transferred to the seedling planting device 35, the evacuation means 105 makes the seedling take-out nail 5 4 to change the posture and move to the rear, so the soiled seedlings 5 from the seedling tray 2
This prevents bending of the seedling leaf 5a when taking out the seedlings.
In addition, when the seedling 5 with soil is dropped, the retracting means 105 is also in a substantially downward posture as the seedling take-out claw 4 is in a substantially downward posture,
The retreating means 105 can be retreated without being caught by the seedling leaf 5a, preventing damage to the seedling leaf 5a and allowing the planting device 3
We are making sure that there will be no hindrance to the supply to No. 5. Here, the claw movement mechanism 10 that moves the evacuation means 105 together with the seedling extraction claws 4 to drop the soiled seedlings 5 also constitutes the evacuation mechanism 101 that evacuates the evacuation means 105 with respect to the seedling leaf 5a. It is possible to provide a retracting means simply and inexpensively.

The present invention is not limited to the above-described embodiment, and for example, the retracting means provided in the first embodiment is provided between the pot portions of the seedling tray. However, brush-like or plate-like retracting means may be provided over substantially the entire width of the seedling tray, and a bar-shaped member that is long in the left-right direction may be provided at a position corresponding to the tip of the brush.

Although the transplanter adopting the present invention shows a self-propelled walking type, it may be a riding type, and the transplanter is configured to have two or more rows, in addition to one row. You may.

[0073]

As described above in detail, according to the present invention, when the seedling take-out nail is stabbed in the soil-containing seedling, the evacuation means retracts the seedling leaves from the entry path of the seedling take-out nail. It rarely pierces the leaves and damage them,
Furthermore, since the evacuation means is made to exit in the substantially height direction of the soil-bearing seedlings, that is, in the extending direction of the seedlings, after the seedling take-out claws are rushed into the soil-bearing seedlings, the evacuation means is retracted from the seedling leaves. At that time, the seedlings are hardly bent (claims 1 and 3).

Further, in the present invention, it is necessary to provide a mechanism or the like for moving the retreating means itself by retracting the retreating means with respect to the seedling leaves by utilizing the fall when dropping the soil-bearing seedlings into the seedling planting device. Therefore, it is possible to simplify the structure (claims 2 and 4). Further, according to the present invention, since the retreating means is fixed to the holder that holds the seedling take-out claws so that it can retreat with respect to the soil-containing seedling, the retreating means can be provided simply and inexpensively, and, The withdrawal mechanism can be configured by the nail operation mechanism of the seedling withdrawing nail, and the structure can be simplified (claim 5).

[Brief description of the drawings]

FIG. 1 is a side view of a seedling take-out device according to a first embodiment of the present invention immediately before taking out seedlings.

FIG. 2 is a side view immediately after taking out the seedlings.

FIG. 3 is a side view of the seedling transfer process.

FIG. 4 is a side view immediately before the seedling is withdrawn.

FIG. 5 is a side view immediately after leaving the seedling.

FIG. 6 is a perspective view showing a configuration of a seedling leaf retraction device.

FIG. 7 is a side cross-sectional view of a main part of the seedling take-out device when the seedling is pierced.

FIG. 8 is a side cross-sectional view of a main part of the seedling removing device when the seedling is removed.

FIG. 9 is a side sectional view of a main part of the seedling take-out device before the seedling is pierced.

FIG. 10 is a plan sectional view of a main part of the seedling take-out device when the seedling is pierced.

FIG. 11 is a rear view of the main part of the seedling take-out device.

FIG. 12 is a side view showing a relationship between a seedling take-out device and a carrying device.

FIG. 13 is an overall side view of the transplanter.

FIG. 14 is a side view showing the seedling take-out device according to the second embodiment of the present invention from immediately before taking out the seedlings to immediately after taking off the seedlings.

FIG. 15 is a perspective view showing a configuration of a seedling leaf retraction device.

FIG. 16 is a side view showing a seedling removing device according to a third embodiment of the present invention from immediately before seedling removal to immediately after seedling removal.

FIG. 17 is a side sectional view of a main part of the seedling take-out device when the seedling is pierced.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seedling take-out device 2 Seedling tray 3 Pot part 4 Seedling take-out claws 5 Seedlings with soil 10 Claw movement mechanism 21 Transplanter 35 Planting device 101 Exit mechanism 105 Evacuation means

Claims (5)

[Claims] 1. A pot section (3) in a seedling tray (2).
A seedling take-out nail (4) is made to plunge into the soil-bearing seedling (5), and the seedling take-out nail (4) is moved from the seedling tray (2) to a seedling planting device (35).
The soil-bearing seedlings (5) are taken out from the seedling tray (2) and transferred to the seedling planting device (35) by moving the soil-bearing seedlings (5) to above the soil-bearing seedlings (5). A method for removing seedlings of a transplanter adapted to drop the seedlings from the soil, wherein the seedling picking nails (4) are rushed into the seedlings with soil (5) when the seedlings picking nails (4) are rushed into the soiled seedlings. The seedling leaf (5a) of (5) is evacuated from the locus by the evacuating means (105), the seedling take-out claw (4) is made to plunge into the soil-bearing seedling (5), and the seedling planting device (35) is soiled. In the process of dropping the seedlings (5), the evacuation means (105) is used to remove the seedlings (5).
A method for removing seedlings from a transplanting machine, which is characterized in that the seedlings with soil (5) are withdrawn in a substantially height direction with respect to a). 2. The retracting means (105) is retracted from the seedling leaf (5a) by dropping the soil-bearing seedling (5) when dropping the soil-bearing seedling (5) into the seedling planting device (35). The seedling removal method of the transplanter according to claim 1. 3. The pot section (3) in the seedling tray (2)
A seedling take-out claw (4) capable of plunging into the soil-bearing seedling (5) therein, and the seedling take-out claw (4) from the seedling tray (2) to a seedling planting device (3).
5) is provided with a claw operating mechanism (10) for moving, and the claw operating mechanism (10) moves the seedling extracting claw (4) to take out the soil-bearing seedlings (5) from the seedling tray (2). A seedling take-out device of a transplanter, which is transferred to a seedling planting device (35) and drops the soil-bearing seedling (5) into the seedling planting device (35) from above. Retracting means (105) for evacuating the seedlings (5a) of the soil-bearing seedlings (5) covered by the rushing trajectory of the seedling take-out nails (4) when rushing 4) into the soil-bearing seedlings (5). Equipped with a nail for picking up seedlings (4) with soil (5)
To the seedling planting device (35) and then attach the seedlings with soil (5)
A seedling taking-out device for a transplanting machine, comprising a retreating mechanism (105) for retreating the retracting means (105) with respect to the seedling leaves (5a) in a substantially height direction of the soil-bearing seedling (5) in the process of dropping the seedlings. . 4. The evacuation means (105) is retreated so as to retreat to the seedling leaf (5a) by dropping the soil-bearing seedling (5) when dropping the soil-bearing seedling (5) into the seedling planting device (35). The seedling take-out device of the transplanter according to claim 3, which constitutes a mechanism (101). 5. The retracting means (105) is fixed to a holding body (9) for holding the seedling taking-out claw (4) so as to be able to move in and out of the soil-bearing seedling (5). The seedling removal device of the transplanter according to claim 3 or 4.