JPH1198904A - Apparatus for recovering seedling box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To recover seedling boxes from the center part of boxes closely arranged in lateral direction. SOLUTION: This seedling recovering apparatus is provided with a box-lifting apparatus 28 engaged with the seedling box arranged on a raising seedling field and lifting the seedling box and a longitudinal, transportation apparatus 27 positioned at the bottom side of the seedling box lifted by the box-lifting apparatus 28, receiving the seedling box from the box-lifting apparatus 28 and transferring the box backward. The longitudinal transportation apparatus 27 is tilted forward, the front part of the apparatus has a narrow part 36a having a lateral width narrower than the total width of the plural seedling boxes to be recovered at the same time and the rear part has a wide part 36b having a lateral width larger than the total width of the plural seedling boxes to be recovered at the same time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling box collecting apparatus for collecting a large number of seedling boxes arranged in a plane on the ground of a nursery.

[0002]

2. Description of the Related Art In the raising of rice and vegetables, after germination, seedling boxes are arranged in a house in a unit of several hundreds to 1,000 sheets and are greened and / or hardened. Technology for mechanization has been developed for efficient operation within the system. Among the techniques for unfolding and collecting seedling boxes, a technique for collecting seeds is disclosed in Japanese Patent Application Laid-Open No. 7-6745. This technology is a traveling device that moves the aircraft back and forth,
A seedling box transfer device that transfers a seedling box from the ground to the aircraft,
A seedling box loading / unloading device for unloading a seedling box on the body is provided.

[0003]

However, in the prior art, the collecting operation of the seedling box is performed by sequentially scooping the seedling box, which is disposed in close contact with the nursery, from the left and right ends. Could not skim from the center in the direction. Therefore, when it is desired to perform the work of manually collecting a truck or the like separately from the seedling box collecting device, the passage for carrying the truck cannot be secured, and the workability is poor.

In view of the above, the present invention provides a method for collecting seedling boxes arranged closely in the left-right direction from a central portion, forming a work passage in the central portion, and allowing a truck or the like to be carried in by manual operation. It is an object of the present invention to provide a seedling box collection device that enables collection.

[0005]

In order to achieve the above object, the present invention takes the following measures. That is, a feature of the seedling box collecting device of the present invention is that a box picking device that engages with a seedling box disposed in a nursery and lifts the seedling box, and a seedling picked up by the box picking device. Positioned on the bottom side of the box, comprising a front-rear transportation device for receiving the seedling box from the box pick-up device and transporting the same rearward, wherein the front-rear transportation device is disposed in a downwardly inclined shape, and the front portion thereof is The width in the left-right direction is formed in a narrow portion smaller than the total width of a plurality of seedling boxes to be collected simultaneously,
The rear part is formed in a wide part whose lateral width is larger than the total width of a plurality of seedling boxes to be collected simultaneously.

According to the present invention having the above-described structure, the front portion of the front-rear transport device for collecting and transporting the seedling boxes is formed in a narrow portion. When collecting the seedling boxes, the back-and-forth transport device will not interfere with the outer seedling boxes adjacent to the left and right of the seedling box to be collected. It is possible to secure work through. Then, a truck or the like is introduced into the work passage, and the collection work can be performed manually.

The narrow portion is provided with a front conveyor, and the wide portion is provided with a rear conveyor.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 show an entire seedling box deployment and collection device that can be changed to a seedling box deployment device and a seedling box collection device as a seedling box ground treatment machine. This seedling box unfolding and collecting device forms 5 to 10
In this configuration, the seedling boxes N can be unfolded and collected simultaneously side by side (see FIG. 4).

The seedling box unfolding and collecting apparatus comprises a main unit 1 and at least one working unit 2. Attaching the box supply device 3 to the main unit 1 results in a seedling box deployment device, and attaching the box collection device 4 to the main unit 1 provides a seedling box collection device. The main unit 1 includes a body 5 and a traveling device 6 including a crawler or the like for traveling the body 5, and a drive source such as an electric motor, a hydraulic pump, an air compressor, an operation panel, and the like are mounted on the body 5. And can run and steer independently.

The airframe 5 has a delivery device 7 at the front thereof,
A box supporter 8 is provided in the rear part, and a mounting part 9 is provided at an intermediate portion between the box supporter 8 and the box supply device 3 or the box collection device 4 so that the device can be selectively mounted. The delivery device 7 includes a distribution device 10 that transfers the seedling boxes N to and from the working unit 2 and a first transfer device 1 that transfers the seedling boxes N in the front-rear direction.
And 1.

The box holder supporting device 8 removably mounts a box holder 12 on which a plurality of rows of stacked seedling boxes N in which seedling boxes N are stacked in a stacked manner are placed in the left-right direction. The box holder 12
Moving device 13 for moving the seedlings N in the left-right direction, and a second conveying device 14 provided below the horizontal moving device 13 for conveying one row of the stacked seedling boxes N on the box receiving body 12 forward. It is composed of

The box feeder 3 is provided with the second transporter 1
The single-row stacked seedling boxes N sent from the feeder 4 are sent one by one to the first transfer device 11 of the delivery device 7.
The box supply device 3 includes a mounting portion 9 for the main unit 1.
And a third transfer device 16 provided above the machine base 15 for transferring the seedling box N in the front-rear direction, and a third transfer device 16 provided above the third transfer device 16. A stacking box holding device 17 for holding the lowest one of the stacked seedling boxes N, and a position provided on the machine base 15 to a position where the holding device 17 can hold the seedling boxes N on the third transport device 16. And a lift device 18 for raising and lowering.

The box collecting device 4 collects the seedling boxes N supplied one by one from the transfer device 7 in upper and lower stages, and collects the empty box receivers placed on the box holder supporting device 8 at the rear. Holding body 12
Are supplied collectively. This box collecting device 4
A frame 19 detachably attached to the attachment portion 9 of the main unit 1 instead of the box supply device 3,
A fourth transport device 20 provided on the frame 19 for transporting the seedling box N in the front-rear direction, and a seedling box N on the fourth transport device 20
And a pusher device 22 for pushing out all the seedling boxes N on the box multi-stage lifting device 21 rearward.

The working unit 2 is detachably connected to the left and right sides of the distribution device 10 of the delivery device 7 of the main unit 1. Can be connected and extended in the left-right direction. The working unit 2 has a machine frame 25 having a front wheel 23 and a rear wheel 24. The machine frame 25 is provided with a vertical and horizontal transport device 26, a front and rear transport device 27, and a box pick-up device 28. I have.

The vertical / horizontal transfer device 26 transfers the seedling box N between the delivery device 7 and the distribution device 10 at the ascending position.
A lateral transport device 29 for transporting the seedling box N in the left-right direction, an elevating device 30 for lifting and lowering the horizontal transport device 29, and moving the seedling box N on the horizontal transport device 29 back and forth at the lowered position of the horizontal transport device 29. And a fifth transport device 31 that transports in the direction. The front-rear transport device 27 includes a sixth transport device 32 that transports the seedling box N in the front-rear direction, a front-rear movement device 33 that moves the sixth transport device 32 in the front-rear direction, and a front end of the sixth transport device 32. It has a box aligning device 34 provided and a grounding wheel 35 provided on the sixth transport device 32. Then, the seedling box N can be delivered between the sixth transport device 32 and the fifth transport device 31.

The box pick-up device 28 lifts the seedling boxes N deployed at the nursery and supplies the seedling boxes N to the sixth transfer device 32. The box pickup device 28 is provided at the front of the front-rear transfer device 27. ing. Next, a case where the apparatus is used as a seedling box deployment apparatus shown in FIG. 3 will be described. In this case, the box supply device 3 is attached to the attachment portion 9 of the main unit 1, and the box pick-up device 28 of the work unit 2 is removed.

First, a plurality of rows of stacked seedling boxes N are placed on the box receiving body 12 in the left-right direction, and the box receiving body 12 is supported by the carrier such as a forklift on the box supporting body of the main unit 1. It is placed on the device 8. And the stacked seedling box N on the box receiver 12
The box receiving body 12 is moved in the left-right direction by the lateral moving device 13 so that the predetermined row corresponds to the second transport device 14.
Then, a row of the stacked seedling boxes N is sent by the second transport device 14 to the third transport device 16 of the front box supply device 3.

In the box feeding device 3, the row of stacked seedling boxes N sent from the second transfer device 14 is received on the third transfer device 16, and the stacked seedling boxes N are lifted by the lift device 18. Then, the lowermost seedling box N of the stacked seedling box N is held by the stacked box holding device 17. Then, by repeatedly lifting and lowering the lift device 18 and releasing the holding of the stacking box holding device 17, the lowermost seedling boxes N are lowered one by one onto the third transport device 16, and the seedling boxes N are transferred to the front delivery device 7. First
It is sent to the transport device 11.

In the delivery device 7, the first transport device 11
Is supplied to the dispensing device 10 from the distribution device 10.
The seedling box N is supplied to the vertical and horizontal transport device 26 of one of the left and right working units 2 via the. In the work unit 2, the horizontal transport device 29 of the vertical and horizontal transport device 26 is
The seedling box N is supplied from the distribution device 10 to the horizontal transport device 29 at the ascending position.
Then, the seedling boxes N supplied one by one are conveyed in the left-right direction by the horizontal conveying device 29, and a predetermined number of seedling boxes N are arranged in a horizontal line on the horizontal conveying device 29. After the seedling boxes N are arranged in a horizontal line on the horizontal conveying devices 29 of the left and right working units 2, the horizontal conveying device 29 is lowered by the elevating device 30, and the seedling boxes N arranged in the horizontal line are moved to the fifth conveying device 31. And all the seedling boxes N are simultaneously transferred from the fifth transfer device 31 to the front-rear transfer device 2.
7 to the sixth transfer device 32. Then, as shown in FIG. 4, while moving the seedling box N forward by the sixth transport device 32 of the front-rear transport device 27, the main unit 1
By moving the seedling box N in the direction, the seedling box N is discharged to a predetermined position. At a position where the box aligning device 34 of the forward and backward transport device 27 is separated from the released seedling box N by a predetermined distance, the movement of the main unit 1 is stopped, and the sixth transport device 32 is advanced by the forward and backward transport device 33 of the forward and backward transport device 27. Then, the entire seedling box N released by the box aligning device 34 at the front end is pressed to align the front and rear positions.

By repeating the above operation, the seedling boxes N are unfolded vertically and horizontally at the nursery. Next, a case where the apparatus is used as a seedling box collecting apparatus shown in FIG. 5 will be described. In this case, the box collecting device 4 is mounted on the mounting portion 9 of the main unit 1, the empty box receiver 12 with the shelf frame is mounted on the box receiver supporting device 8, and Is the box pick-up device 28
Is attached, and the main unit 1 is attached with an arrow b shown in FIG.
Move in the direction.

In the state shown in FIG.
By moving the front-rear transfer device 27 forward or the main unit 1 forward by 3, the box pick-up device 28 provided at the front thereof lifts the seedling box N. By further moving forward, the sixth transport device 32 of the front-rear transport device 27
Move into the lower part of the raised seedling box N, and the seedling box N is transferred to the sixth transport device 32.

Next, the sixth transporting device 32 is moved to the forward / backward moving device 33.
And drives the sixth transport device 32 to transfer the seedling box N onto the fifth transport device 31. At this time, the horizontal transport device 29 is at the lowered position, and the seedling box N is also on the horizontal transport device 29. And the horizontal transport device 29
Is raised by the lifting device 30, the seedling box N on the fifth transport device 31 is transferred to the horizontal transport device 29 and rises. Then, by driving the horizontal transport device 29 at the ascending position, the seedling boxes N are supplied one by one to the distribution device 10 of the delivery device 7, and the box collection device 4 is supplied from the distribution device 10 via the first transport device 11. To the fourth transfer device 20.

In the box collecting device 4, the delivery device 7
Seedling boxes N supplied one by one to the fourth transport device 20 from
It is collected in the upper and lower multi-stages by the box multi-stage lifting device 21, and then pushed rearward by the pusher device 22 to empty the box support 12 placed on the rear box support support 8. Put them all together on the shelf frame. Then, the box holder 12 is moved in the left and right direction by a predetermined amount by the lateral moving device 13 of the box receiver support device 8, and the upper and lower seedling boxes N from the box collecting device 4 are received at that position. Multiple rows of seedling boxes N
When the shelf is full, the box receiver 12 is removed from the box receiver support device 8 by a carrier such as a forklift and moved to a predetermined place.

The outline of the seedling box deployment and recovery device has been described above. Next, the details of the working unit 2 which is a feature of the present invention will be described with reference to FIGS. The sixth transporting device 32 of the forward and backward transporting device 27 of the work unit 2 has a frame 36, the grounding wheel 35 is provided on the frame 36, and the forward and backward moving device 33 is connected thereto. The forward / backward moving device 33 is composed of a cylinder that connects the frame 36 and the machine frame 25.

The frame 36 is provided with a front belt conveyor 37 and a rear belt conveyor 38 for transporting the seedling boxes N in the front-rear direction, five rows in the left-right direction. These belt conveyors 37 and 38 are simultaneously driven by a motor 39 provided below the frame 36. The frame 36 has a narrow width in the left-right direction at a portion corresponding to the front belt conveyor 37, and
6a. Further, a portion corresponding to the rear belt conveyor 38 is a wide portion 36b whose width is wider than the narrow portion 36a.

That is, in the narrow portion 36a, the dimension between the left and right outer ends of the frame is smaller than the left and right width of the plurality of seedling boxes N to be collected simultaneously. The wide portion 36b can pass over the remaining collected seedling boxes N. The front and rear belt conveyors 37, 38
Is composed of a pair of left and right belts corresponding to one seedling box N. The left and right outer end portions of the front belt conveyor 37 have only one transport belt and are narrow.

The grounding wheel 35 provided on the lower side of the frame 36 is adjustable in front and rear position. By adjusting the front and rear position, the inclination angle of the front and rear transport device 27 can be changed. Can be changed between a position close to the ground and a floating position. The box aligning device 34 includes a bracket 40 projecting forward from the frame 36, and a roller 41 rotatably supported by the bracket 40.
5 are provided in the left-right direction corresponding to the front belt conveyor 37.

The box aligning device 34 exhibits an original box aligning function when the seedling box is unfolded. The roller 41 is grounded, and is pressed against the seedling box N discharged to the ground. Thus, the seedling boxes N in five rows in the left-right direction are aligned in one row. The upper surface of the roller 41 serves to reduce the head when the seedling box N is discharged from the front belt conveyor 37 to the ground.

The box picking device 28 is provided with the box aligning device 3.
And a front frame 49 detachably attached to the left and right sides of the frame 36 of the front-rear transport device 27 and protruding forward and upward.
And five hooks 50 provided on the front frame 49 in the left-right direction. The scooping tool 42 is attached to the roller 41 so as to be detachable and vertically rotatable.

The hooking tool 50 has a rod-shaped member 51 formed of a round bar or the like, and a boss member 52 formed by fixing a pipe member or the like on the upper part of the rod-shaped member 51. Three (or a plurality other than the three) boss members 52 are loosely fitted to a support shaft 53 provided at the front part of the front frame 49 so as to be swingable independently. Form a hanging claw portion 54 having a substantially L-shape in side view.

The hook 50 is moved forward with the forward and backward transporting device 27 while the hook 54 is substantially grounded, and the lower hook 54 moves from below to the peripheral edge Na of each seedling box N by forward movement. Since the seedling box N does not advance in this hooked state, the seedling box N moves in an arc around the upper portion, and the hooking claw 54 moves in an arc upward and backward while the seedling box N is hooked, and the seedling box N is moved. Lift the rear part around the front part.

The hook 54 is located above the front part of the forward and backward transport device 27 with the seedling box N lifted. When the hook 50 further advances from this state, the angle between the bar 51 and the peripheral edge Na is increased. Becomes smaller, and when swinging more than a certain angle, the peripheral edge Na comes into contact with the upper portion of the hook claw portion 54, and the hook claw portion 54 comes off from the peripheral edge Na by the leverage action, so that the seedling box N
Is placed on the front and rear transport device 27 so as to drop.

In this manner, the seedling box N is lifted by the plurality of hooks 50 corresponding to each seedling box N, and is transferred onto the front-rear transfer device 27.
Transport to Even if the seedling box N is not picked up properly,
It is picked up by the scooping tool 42 that moves forward. The box picking-up device 28 is a device dedicated to collecting seedling boxes, and it is preferable that the box picking-up device 28 be detached from the frame 36 when the seedling box is unfolded. . However, the scooping tool 42 is the box aligning device 3
Remove from 4

Further, the front frame 49 of the box pick-up device 28 is detachably mounted on the machine frame 25 of the work unit 2, and the hook 50 is hooked and lifted on the seedling box N by the advance of the work unit 2, and the lift is performed. The front and rear transport device 27 may be advanced and inserted below the seedling box N. According to the embodiment of the above configuration, at the time of collecting the seedling boxes, the seedling boxes N can be collected from the central part of the seedling boxes N which are arranged in close contact in the left-right direction.

That is, the front portion of the frame 36 of the front-rear transfer device 27 is formed in the narrow portion 36a so as not to interfere with the outer seedling box N adjacent to the seedling box N to be collected. The seedling box N can be collected from the central part of the seedling box N arranged in close contact with the box. At this time, since the front and rear transport device 27 is constituted by a two-stage transport device of the front belt conveyor 37 and the rear belt conveyor 38, it is easy to configure the front portion to be narrow.

The present invention is not limited to the embodiments described above.

[0037]

According to the present invention, when collecting seedling boxes, the seedling boxes can be collected from the center in the left-right direction of the seedling boxes arranged in close contact with each other in the left-right direction. .

[Brief description of the drawings]

FIG. 1 is a side view of a separated state of a seedling box deployment and recovery device as a seedling box-to-ground treatment machine showing an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view of the seedling box deployment device.

FIG. 4 is a plan view showing a deployment / collection operation.

FIG. 5 is a side view of the seedling box collection device.

FIG. 6 is a side view of the working unit.

FIG. 7 is a plan view of the front-rear transport device.

[Explanation of symbols]

 27 Front / rear transport device 28 Box pick-up device 36a Narrow part 36b Wide part 37 Front conveyor 38 Rear conveyor N Seedling box

Claims (2)

[Claims] 1. A box pick-up device that engages with a seedling box placed in a nursery and lifts the seedling box, and a box located on the bottom side of the seedling box lifted by the box pick-up device. A front-rear conveyance device for receiving the seedling box from the pick-up device and conveying it rearward, wherein the front-rear conveyance device is arranged in a downwardly inclined shape, and the front portion has a plurality of widths in the left-right direction to be simultaneously collected. It is formed in a narrow portion smaller than the total width of the seedling boxes, and the rear portion is formed in a wide portion whose lateral width is larger than the total width of the plurality of seedling boxes to be collected simultaneously. Seedling box collection device. 2. The seedling box collection device according to claim 1, wherein a front conveyor is provided in the narrow portion, and a rear conveyor is provided in the wide portion.