JPS6347401B2 - - Google Patents

Description

[Detailed Description of the Invention] This invention involves taking out soiled seedlings attached to the lattice-like partitions of a seedling box to a planting device using a seedling take-out mechanism, and then removing the seedlings from the upper partition. This invention relates to a device for vertically feeding the seedlings downward until they reach the seedling removal mechanism.

This type of vertical feeding device that has been used in the past is the
As shown schematically in the figure, locking bodies 3a, 3 are attached to the left and right sides of the seedling box 2 fitted into the seedling box holder 1.
b... are provided corresponding to the lattice-like partitions 2a, 2b... of the seedling box 2, respectively, and the upper locking portion 5a is attached to the locking pawl 5 which is pivotally connected to the machine frame (not shown) with a pin 4. The locking pawl 5 is swung by a swinging mechanism (not shown), and the locking member is locked at the upper locking portion 5a as shown in FIG. 1A. 3b is locked to hold the seedling box 2, and the seedling extrusion rod 6, which is seen behind the partition 2b, pushes out the soiled seedlings 7 in the partition 2b to a planting device (not shown), and then swings. Due to the mechanism, the upper locking part 5a rotates backward and the lower locking part 5b moves forward, so the seedling box 2 falls a little and the locking body 3c one level below is locked in the lower position as shown in FIG. 1B. The seedling box 2 is locked at the stopper 5b, and the upper stopper 5a rotates forward again and the stopper 3c is disengaged from the lower stopper 5b, so the seedling box 2 falls a little and is lower than the stopper 3b. The upper locking body 3a is
As shown in FIG. The structure is such that the seedling box 2 falls by one partition each time the seedling box 2 rotates.

The structure is such that the locking claw 5 that locks a certain locking body 3b then engages with the locking body 3c that is one below, so another seedling box 2X is attached to the upper end of this seedling box 2. When the seedling box 2X is used with the seedling box 2 5a, and then when the upper locking part 5a rotates backward, the lower locking part 5b locks this locking body 3ax and the first
As shown in the figure, this seedling box 2x falls by one partition, and then when the lower locking part 5b rotates backward, the upper locking part 5a locks on the locking body 3cx two places above. As shown in FIG. There is a problem that the seedlings 7 with soil inside the partition 2bx cannot be taken out because the seedlings 7 pass through the partition 2bx without stopping.

Therefore, in the present invention, the locking pawl is configured to have an upper locking part and a lower locking part and swing intermittently, so that the upper locking part first locks on one of the locking bodies. , with the next one swing, the locking body comes off from the upper locking part, the seedling box falls, the lower locking part locks the locking body, and with the next one swing, the lower locking body comes off. When the locking body comes off from the locking part and the dropped box falls, the upper locking part locks on the locking body immediately above the locking body, and in this way, the seedling box falls one after another. This device solves the problems of the conventional device by holding the seedling box by the locking pawl while moving the seedling box.

To explain one embodiment, as shown in each figure of Fig. 2 and Fig. 3, a seedling box guide is configured so that the seedling box 2, which is equipped with grid-like partitions 2a, can be guided up and down and dropped. A bracket 9 is attached to the outer side of the bracket 9, and the guide rod 10 inserted into the guide hole 9a provided in the bracket 9 and the seedling pushing rods 11, 11, which can be inserted into and out of the partitions 2a, 2b, are mutually connected. One arm 13a of the lever 13, which is fixed to the seedling box guide 8 and pivotally connected to the seedling box guide 8 by a shaft 12, engages with a pin 14 installed in the seedling pushing rod 11 via a long hole 13b, and is attached to the bracket 9. The rotary shaft 15 supported by the shaft, the side of one sprocket wheel 16, and the other arm 1 of the lever 13
3c by a rod 17, so that when the sprocket wheel 16 is rotated in the direction of the arrow A, the head 11a of the seedling extrusion rod 11 moves in and out of the partition 2a.

Further, a locking claw 19 having an upper locking portion 19a and a lower locking portion 19b and a drive arm 20 are fixed to the rotation pin 18 pivotally connected to the bracket 9, and a hole provided in the seedling box guide 8 The locking claw 19 is urged by the spring 21 so that the upper locking part 19a of the locking claw 19 peeks into the seedling box guide 8 from the partition 2a...
Locking bodies 22a, 22b... with an arrangement interval equal to the arrangement interval in the vertical direction of... are provided protruding from the seedling box 2 in correspondence with the partitions 2a, respectively, and a drive pin 23 is planted in the sprocket foil 16. In the state shown in FIG. 2A in which the drive arm 20 is not engaged with the drive arm 20, the upper locking portion 19a of the locking pawl 19, which is biased by the spring 21, engages with, for example, the locking body 22c of the seedling box 2, and the seedling box I support 2, but
When the drive pin 23 engages with the drive arm 20 and pushes the drive arm 20 in the direction of arrow A, the locking claw 1
9 rotates in the direction of arrow B, the locking portion 19 escapes backward from the seedling box guide 8, and the lower locking portion 19b formed below the locking claw 19 protrudes into the seedling box guide 8. Therefore, the seedling box 2 falls a little and the lower locking part 19b engages with the locking body 22c as shown in FIG. Then, the spring 21 causes the locking pawl 19 to return and rotate in the direction opposite to the arrow B, so the lower locking portion 19b retreats, the locking body 22c comes off, and the seedling box 2 falls. At this time, the upper locking part 19a again enters into the seedling box guide 8, so the locking body 22d immediately above the locking body 22c is supported by the upper locking part 19a as shown in FIG. As a result, the seedling box 2 falls a little from the position shown in FIG. The vertical feed device 24 is configured so that the body 19a falls by one pitch, that is, one partition 2a.

On the other hand, the movement of the seedling extrusion rod 11 into and out of the partition 2a starts after the drive pin 23 is detached from the drive arm 20.
The rod 17 and the lever 13 are connected again to the drive arm 20 as shown in FIG.
This seedling take-out mechanism 25 is composed of a guide rod 10 and extrusion rods 11, 11, . Immediately after it comes off from the seedling extrusion rod 11, it stops at the position shown in FIG.
The sprocket wheel 16 is configured so that when it reaches the front of the extrusion locus, the sprocket wheel 16 rotates once by the operation of a one-turn clutch (not shown), and as the sprocket wheel 16 rotates once, the seedling extrusion rod 11 Since the lever 13 starts rotating clockwise from the standby position shown in FIG.
a and pushes out the seedlings 7 with soil inside the partition 2a as shown in FIG. However, it turns back forward at the most retreated position and reaches the standby position shown in FIG. The seedling box 2 is configured to be fed downward by the vertical feeding device 24 during this turning operation behind the partition 2a of the seedling box 11a.

Although not shown, the above-mentioned seedling extrusion rod 11
The backward folding motion of the partition 2a of the head 11a is as follows.
It may also be configured to be performed when the sprocket wheel 16 begins to rotate.

The structure of the illustrated seedling transplanter is as shown in FIGS. 5 and 6, in which seedling box guides 8, 8 are arranged vertically at both ends of a frame 26 extending left and right from the seedling transplanter. Seedling extrusion rods 11 are provided corresponding to each partition 2a in one horizontal row in the front and back direction of each seedling box 2, and one horizontal row of soil is removed by one operation of pushing out seedlings. The seedlings 7... are configured so that they are pushed out all at once, and as shown in the side view in FIG. 7 and the rear view in FIGS. Rocking rods 28, 28 are fixedly installed at the front and rear of the supported drive shaft 27, respectively,
Drive pins 29, 29 are protrudingly provided on the left and right sides near the swinging tips of the respective swinging rods 28, respectively. and,
A seedling transfer rod 30 with a front L-shape and a flat seedling transfer plate 31 equipped with a bottom plate 30a are rotatably inserted into the drive shaft 27 so as to sandwich the drive pin 29, respectively. With springs 32, 32 whose ends are respectively engaged with spring seats provided on each of the transfer plates 31,
The seedling transfer rod 30 and the seedling transfer plate 31 are biased in the direction in which they join together, and side receiving plates 3 are provided on the front and rear edges of the seedling transfer plate 31.
1a and 31a are provided, respectively.

At the lower center in the left-right direction of this seedling transplanter, there is a seedling guiding body which is in the shape of a front face, has a length substantially equal to the entire length of the seedling transfer rod 30, and has a rear end opening 33a at the rear end. 33 is provided, and this seedling guide body 3
3 is provided with an opening groove body 35 for recessing the planting groove 34 into the ground surface, and fall prevention plates 37a and 37b are pivoted to the left and right sides of the upper part of the seedling guide body 33 by shafts 36, respectively. is provided so as to be always held vertically by a torque spring 38. The swinging rod 28, the seedling transfer rods 30, 30, the seedling transfer plate 31,
31 is reciprocated between the left and right seedling boxes 2, 2 and the center seedling guide 33, and in FIG. When rotating, the drive pin 29 at the front of the rotation pushes the seedling transfer plate 31 at the front in the same upward direction. The seedling transfer rod 30 also rotates in the upward direction together with the seedling transfer plate 31, and at this time, the driving pin 29 at the rear of the rotation pushes the seedling transfer rod 30 at the rear in the direction of arrow C. , spring 33
The seedling transfer plate 31 is also configured to rotate in the same upward direction via the.

Then, the swinging rod 28 rotates in the direction of the arrow C in FIG. The moving rod 28 stops, and at this time the spring 3
In step 2, the right seedling transfer rod 30 and the seedling transfer plate 31 that are joined together are placed with the soiled seedlings 7 on the bottom plate 30a.
It stops at the standby position directly above the seedling guide 33, and at this time, the right fall prevention plate 37b stands upright to prevent the soiled seedlings 7 from falling, and the left fall prevention plate 37a
is pushed down by the contact of the swinging rod 28. The seedling guide body 33 has already been released due to the previous release operation by the seedling transfer rod 30 and the seedling transfer plate 31.
A seedling with soil 7 has fallen and is housed inside the seedling guide 33, and as shown in FIG. A seedling release body 42 is provided inside which can be moved back and forth along the bottom plate 33b by being guided by the protrusion 42a,
The engaging portion 42b of the seedling pusher 41, which is urged by the return spring 43 to always move in the direction of arrow D, which is the direction in which the machine moves, is attached to a winding hook disposed along the seedling guide 33. The seedling release body 42 engages with an engaging body 44a fixed to the endless band 44 of the transmission mechanism and rotates in the direction of the arrow E, so that the seedling release body 42 releases the seedlings 7 with soil on the bottom plate 33b. For 1 piece, rear end opening 3
It is formed so that it may be discharged from 3a into the planting groove 34. Therefore, when all the seedlings 7 with soil on the bottom plate 33b have been released, the engaging body 44a reaches the folded end of the endless band 44, and the engaging part 42b of the seedling releasing body 42
Since the seedling releasing body 42 is quickly returned to the vicinity of the front end of the seedling guiding body 33 by the return spring 43, the aforementioned swinging rod drive mechanism is operated by the swinging rod 28. is slightly rotated in the direction of arrow C from the state shown in FIG.
1b is the stopper bolt 2 installed in the frame 26
6a, 26a, this seedling transfer plate 31 remains stationary directly above the seedling guide 33, but the drive pins 29, 29 on the right side of the drive rod 28, which rotates together with the drive shaft 27, are connected to the seedling transfer rod. 20 to the release position as shown in FIG. 9, the bottom plate 30a escapes from directly above the seedling guide 34 in this state, so the seedlings 7 with soil placed on the bottom plate 30a are removed from the seedling guide 34. They ended up falling all at once into 29.
In addition, with this slight rotation of the swinging rod 28, the left drive pins 29, 29 slightly push the seedling transfer plate 31 in the direction of arrow C, and the bottom plate 30a moves to the stopper 41.
The left seedling extrusion rod 11 as shown on the left side of FIG. It will stop. Then, as mentioned above, the drive pin 23 of the left seedling retrieval mechanism 25
is engaged with the drive arm 20, and the left seedling extrusion rod 11... is used to simultaneously push out the seedlings 7 with soil from the partition 2a in one row in the horizontal direction of the seedling box 2 in the same direction. The seedling extrusion rod 11 is to be extruded onto the delivery plate 31, and after completing this extrusion operation, the head 11a...
stops at the standby position immediately after the partition 2a...
The engaging body 44a fixed to the endless belt 44 of the winding transmission mechanism is the engaging part 42b of the seedling release body 42.
to engage the bottom plate 33 as described above.
The seedlings 7 with soil on b are started to be released into the planting groove 34, and the seedlings 7 with soil are released by the left and right suppression wheels 45,
The soil was pressed by 45 and planting was done,
When this extrusion work is completed, the swinging rod drive mechanism starts rotating the swinging rod 28 in the direction opposite to the arrow C, and the pin 29 also moves in the direction opposite to the arrow C, so that the spring 3
2, the left seedling transfer plate 31 is first transferred to the seedling transfer rod 3.
0 and reaches a standby position corresponding to the standby position of the right seedling transfer rod 30 in FIG. 33, the fall prevention plate 37a on the left stands upright to prevent the seedlings 7 with soil on the bottom plate 30a from falling, and the seedling transfer rod 30 and the seedling transfer plate 31 on the right reaches a standby position where the bottom plate 30a comes into contact with a stopper 41 provided on the seedling guide 8.

Then, as mentioned above, the soiled seedlings 7 of the seedling guide body 33 are
When all ... have been released, the swinging rod 28 rotates a little from this position in the direction of arrow C and moves to the left to the release position corresponding to the release position of the seedling transfer rod 30 on the right side of FIG. The seedling transfer rod 30 returns and the seedlings 7 with soil on the bottom plate 30a fall into the seedling guide body 33, and at this time, the right seedling transfer plate 31 is pushed out in front of the seedling extrusion rod 11. It will reach the desired seedling receiving position. When the seedling pushing out operation by the right seedling pushing rod 11 is finished, the swinging rod 28 starts rotating in the direction of arrow C, returning to the state shown in FIG. 8. .

As described above, the vertical feeding device for a seedling box according to the present invention is configured to include an upper locking portion 19a and a lower locking portion 19b so as to swing intermittently, and also locks the seedling box guide 8. The locking pawl 19 is configured such that the upper locking portion 19a and the lower locking portion 19b are present within one pitch interval between the bodies 22a, 22b, . . . Therefore, the locking claw 19 first attaches the upper locking part 1 to the locking body 1.
9a is locked, and the upper locking part 1 is locked by the next one swing.
When the locking body is removed from 9a and the seedling box 2 falls, the lower locking part 19b locks the locking body, and by one subsequent swing, the locking body is removed from the lower locking part 19b. is released and the dropped box 2 falls, and the upper locking part 19a locks on the locking body immediately above the locking body, and in this way, the seedling box 2 is successively dropped while the locking claw 19
Since the structure is such that the seedling box 2 is held by a The locking part 19a and the lower locking part 19b are locked in sequence, so even when using another seedling box 2x placed on the top end of the seedling box 2 as shown in FIG. 4A, This different top seedling box 2x
The lowest locking body 3ax and the next locking body 3bx are sequentially connected to the upper locking part 19a and the lower locking part 1.
9b, the seedling box 2 is vertically fed by one partition 2a by one swing rotation of the locking body 19, and the uppermost locking body of the lower seedling box 2 is moved vertically by one partition 2a. 2
Even if the distance l between the upper seedling box 2d and the lowermost locking member 3ax is longer than the distance P between the adjacent locking members of the first seedling box 2, In this way, all the partitions of the upper seedling box 2x are exposed to the front of the successive seedling pusher 11, so that the seedlings 7 with soil can be taken out reliably.

Therefore, in the conventional type, as explained in FIG. The defect that the body 3bx is not locked and passes through is solved. That is, in the present invention, the locking body 3ax on the seedling box guide 8 side is locked by the lower locking portion 19b of the locking claw 19 in FIG. 4D,
As the locking pawl 19 rotates, the lower locking portion 19b retreats, the locking body 3ax is released, and the seedling box 2x is vertically transported downward. At the same time, as shown in FIG. 4E, the upper locking portion 19a of the locking pawl 19 advances to lock the locking member 3bx immediately above the locking member 3ax.

Therefore, according to the device of the present invention, the seedlings 7 with soil can be sequentially taken out from all the partitions 2a of the seedling box 2 to the seedling taking device 40 by the seedling taking out mechanism 25, which requires unnecessary labor. This made it possible to transfer the seedlings accurately and to carry out efficient planting operations without interruptions.

[Brief explanation of drawings]

Figures 1A to 1D are explanatory diagrams showing the vertical feeding process of seedling boxes using a conventional vertical feeding device, and Figures 2 and subsequent figures show an embodiment of the present invention, and Figures 2A to 2D show the main parts. FIG. 3 is a side view of the main parts in FIG. 1 D, FIG. A side view showing one embodiment of the machine, FIG. 6 is a rear view of FIG. 5, FIG. 7 is a side view of the main part of the seedling collecting device, and FIGS. 8 and 9 are a rear view of the main part of the same seedling collecting device. It is a diagram. Code explanation, 1... Seedling box holder, 2, 2x... Seedling box, 2a, 2b..., 2ax, 2bx... Partition, 3a,
3b..., 3ax, 22a, 22b...locking body, 4
...Pin, 5, 19...Latching claw, 5a, 19a...
...Upper locking part, 5b, 19b...Lower locking part,
6, 11... Seedling extrusion rod, 7... Seedling with soil, 8... Seedling box guide, 8a... Hole, 9... Bracket, 9a
... Guide hole, 10 ... Guide rod, 11a ... Head, 12, 36 ... Shaft, 13 ... Lever, 13
a, 13c... Arm, 13b... Elongated hole, 14... Pin, 15... Rotating shaft, 16... Sprocket foil, 17... Rod, 18... Rotating pin, 20...
...Drive arm, 21, 32...Spring, 23, 29
... Drive pin, 24 ... Vertical feed device, 25 ... Seedling take-out mechanism, 26 ... Frame, 26a ... Stopper bolt, 27 ... Drive shaft, 28 ... Swing rod, 3
0... Seedling transfer rod, 30a... Bottom plate, 31... Seedling delivery plate, 31a... Side receiving plate, 31b... Locking part, 3
3... Seedling guide, 33a... Rear end opening, 33b
...Bottom plate, 33c...Side plate, 33d...Guide groove,
34... Planting groove, 35... Open groove body, 37a, 37
b... Fall prevention plate, 38... Torque spring, 47...
... Seedling collecting device, 41 ... Stopper, 42 ... Seedling release body, 42a ... Engagement projection, 42b ... Engagement part, 4
3... Return spring, 44... Endless body, 44a... Engaging body, 45... Pressing ring, l, P... Spacing.

Claims (1)

[Claims] 1 A seedling box that is attached to a seedling box guide so as to be able to move up and down is provided with a locking body corresponding to each of the lattice-like partitions of the seedling box, and a locking body that is pivotally attached to the side of the seedling box guide. The locking pawl is formed with an upper locking part and a lower locking part, and after the upper locking part locks the locking body on the seedling box side by intermittent rocking rotation of the locking nail, Lock the previously locked locking body at the lower locking part, and then lock the locking body for each pitch on the seedling box side while locking the next locking body at the upper locking part. The locking claw is configured such that an upper locking part and a lower locking part of the locking claw exist within one pitch interval of the locking body on the seedling box side so that the seedling box falls one after another while locking the seedling box. Vertical feeding device for seedling boxes in Tenaru seedling transplanter.