JPS61173719A - Shelving apparatus of seedling growing box - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial field of application] The present invention involves performing a series of sowing operations such as placing the seedlings on the bed, sowing, and covering the seedlings with soil, and controlling the temperature, W1 degree, etc. of the seedlings growing box after seeding. The present invention relates to a shelving device for seedling growing boxes that transfers seedling growing boxes that have been sown to predetermined storage shelves in a seedling growing facility that promotes seed germination.

[Prior art]

In a seedling-raising facility, it is necessary to manage a large number of seedling-raising boxes, and managing the seedling-growing boxes by placing them on each shelf of a storage shelf with many vertical shelves requires a large amount of space. Also, temperature control, humidity, etc. can be easily performed. For this reason, seedling raising facilities have conventionally managed seedling boxes by placing them on storage shelves, and devices for transferring seedling boxes to each shelf of storage shelves (for example, Japanese Patent Application Laid-open No. 59-196006 Public bulletins, etc.) have also been developed.

[Problem that the invention seeks to solve]

However, in order to accommodate a large number of seedling boxes, the height of each shelf is very small. It was difficult to match the height positions, and it was not possible to completely automate the shelving of seedling boxes.

Means for Solving Problem c] The present invention has been made in view of the above circumstances, and provides a seedling raising box in which the heights of the seedling raising box to be transferred and each shelf in the storage shelf can be easily matched. The purpose is to provide shelving equipment.

The present invention provides a shelving device for seedling boxes that sequentially transfers sown seedling boxes that are transported sequentially to each shelf of a storage shelf that has a large number of shelves in the vertical direction. The lifting platform that is transported and placed, the lifting drive machine for the lifting platform, and the storage shelf that is arranged opposite to the lifting platform, and the seedling boxes placed on the lifting platform are connected to each shelf in the storage shelf. It is equipped with a pushing machine that pushes the load onto the shelf and a height detector that is attached to the lifting platform and detects the relative height between the lifting platform and each shelf of the storage shelf. It is characterized in that the height position of the lifting platform is articulated in correspondence with the height position.

〔Example〕

The present invention will be described below based on drawings showing embodiments thereof. Fig. 1 is a layout diagram of the seedling raising facility, Fig. 2 is a partially cutaway view thereof, and Fig. 3 is a side view of a part thereof. This nursery facility has two floors, with the upper floor A having two
A stock conveyor 20 is provided on which a large number of seedling raising box assemblies 10 each consisting of 0 empty seedling raising boxes 11, 11, . . . are stacked and stocked. A delivery conveyor 21 is connected to the terminal end of the stock conveyor 20 to send out the seedling raising box sets 10 placed on the stock conveyor 20 one by one from the stock conveyor 20. A corner conveyor 22 bent at 90 degrees in an arc shape is connected to the terminal end of the conveyor 21 . Corner conveyor 2
At the end of 2, there is a set of seedling boxes 10 from the upper floor A.
A roller conveyor 23 is disposed facing the entrance of the lowering lift 30 that sequentially lowers the lower floors to the floor B below.

A loading button 24 is provided on the side of the roller conveyor 23 facing the loading port of the lowering lift 30 for transferring one set of seedling raising boxes 10 on the roller conveyor 23 to the lowering lift 30. The cylinder 24a pushes the entire set of seedling raising boxes 10 through the loading port using a rectangular pushing tool, and then the lift platform 32 of the lowering lift 30 is moved.
Translated above.

At the lower part of the lowering lift 30, there is formed an exit whose opening direction is 90 degrees different from that of the upper entrance, and a seedling box supply device 40 is disposed facing the exit. The seedling raising box supply device 40 has a lifter 41 that is raised and lowered by an air cylinder 41a, and the seedling raising box assembly 10 lowered by the lowering lift 30 is placed at a position facing the outlet of the lowering lift 30, that is, the seedling raising box. A pusher 3 for carrying out using an air cylinder 31a is arranged at a position facing the supply device 40.
1, the seedlings are pushed out from the lowering lift 30 onto the lifter 41 of the seedling box supply device 40 and transferred.

When the lifter 41 is raised, the seedling box supply device 40 holds the seedling boxes on the second or higher stage from the bottom of the seedling box assembly 10 placed on the lifter 41, and in this state, the lifter 41
is lowered to lower one seedling growing box placed on the lifter 41, transfer the seedling box onto the roller conveyor 44, and then raise the lifter 41 to release the holding of the set of seedling growing boxes. Then, the lifter 41 is lowered while holding the second and higher seedling boxes from the bottom of the seedling box assembly 10 again, and the seedling boxes on the rifuku 41 are transferred onto the roller conveyor 44, and the same operation is performed thereafter. The seedling growing boxes are repeatedly fed onto the roller conveyor 44 one by one.

At the end of the roller conveyor 44, a seeding device 50 that performs a series of seeding operations is connected. The soil is loaded onto the bed using a soil filling machine 52, watered using a irrigation machine 53, and then seeded using a seeding machine 54.
Further, the seedling box is covered with soil #B55, and a predetermined seeding process is performed inside the seedling raising box.

A shelving device 60 according to the present invention is connected to the seeding device 50. FIG. 4 is a side view of the shelving device 60;
The figure is the same plan view, Figure 6 is a side view of the main part, Figures 7 and 8
The figure is a sectional view of the same side. The shelving device 60 according to the present invention has a
A belt conveyor 61 whose starting end is rotatably connected
The terminal end of the belt conveyor 61 has a conveyance direction parallel to the conveyance direction of the belt conveyor 61.
It is connected to the widthwise central portion of a roller conveyor pair 62 having rows of roller conveyors 62r, 62r, . . . . A driving motor 61a is disposed at the starting end of the belt conveyor 61. The rotation speed of the motor 61a can be changed and adjusted.

Each roller conveyor 62r, 62r is placed on a lifting platform 63 that can be moved up and down. The elevating table 63 is maintained in a horizontal state by a pantograph-shaped support member 63a and one guide pole 63b erected on the side.
It is raised and lowered by a hydraulic cylinder 63c interposed within the support member 63a.

FIG. 9 is an elevational view of the vicinity of the guide pole 63b, and FIG. 10 is a plan view thereof. A guide rail portion 63x is formed in the guide ball 63b, and the guide rail portion 63χ
A hollow mounting portion 63y provided on the lifting platform 63 is engaged with the hollow mounting portion 63y. Three guide rolls 63z, 63z, and 63z are rotatably attached to each side of the mounting part 63y in two stages, upper and lower, for a total of 12 guide rolls 632, and each guide roll 63z is attached to the guide rail part. 63χ is held and the guide rail portion 63χ is rolled into contact with the guide rail part 63χ.

FIG. 11 is a partially cutaway view of the starting end of the roller conveyor 62r. The roller conveyor 62r is driven by a driving motor 6.
2a, and a free roller 62c which is rotatable. At the starting end of the roller conveyor 62r, the drive roller 62b and the free roller 62c are arranged side by side. A bell (62V) is attached to each end of both to rotate them together, and the belt 62V is used to prevent the seedling box from slipping. A roller conveyor 62r connected to the starting end
The parts include four free rollers 62c and one drive roller 6.
2b are arranged alternately. The free roller 62c is rotatably attached to the shaft 62p via a bearing 62t made of resin such as MC nylon, and the motor 62a that drives the drive roller 62b is not affected by muddy water spilling from the seedling box. The rotation speed of the roller 62b can be changed and adjusted, and can be synchronized with the rotation speed of the belt conveyor 61 described above.

A pair of rotatable guide wheels 62g is provided on each outer side of the starting end and the ending end of the pair of roller bearings 62.

62g... are attached to each guide wheel 6.
2g is a roller conveyor 62r on each side upper surface of the lifting platform 63.
A pair of guide rails 6 extending in the same direction as the transport direction of the
3d and 63d, each guide rail 63
The guide wheels 62g roll into contact with each other along the direction d, so that the pair of roller conveyors 62 can move on the lifting platform 63 in the conveyance direction. Therefore, the roller conveyor pair 62 is
3, the terminal end of the belt conveyor 61 connected to the starting end of the roller conveyor pair 62 rotates around the starting end, thereby moving the roller conveyor pair 62 relative to the belt conveyor 61. The pair of roller conveyors 62 is moved in the conveying direction relative to the lifting platform 63 by being pulled or pressed in the direction of approaching or separating.

At the starting end of the pair of roller conveyors 62, a gate-shaped mounting member 62f is installed over each roller conveyor 62r, 62r, and the center of the mounting member 62f, that is, the two rows of roller conveyors 62r, 62r. A downward U-shaped guide 62e is pivotally supported above the central portion in the width direction. The width of the guide 62e is approximately equal to the width of one roller conveyor 62r, and the center upper surface of the belt conveyor 61 side end is connected to the mounting member 62.
A pivot point 62s is attached to 2f, and an air cylinder 62g is attached to the upper surface of the end portion of the roller conveyor pair 62 slightly beyond the pivot point.
The tip of the rondo is pivoted. Air cylinder 62g
is pivotally supported on the side of the pair of roller conveyors 62, and as the rondo advances and retreats, the distribution is made to the guide 62e.
The terminal end opening of is located on one roller conveyor 62r, and the air cylinder 62g advances each time one seedling box is fed.

The seedling boxes that are repeatedly moved in and out and sequentially conveyed on the belt conveyor 61 are alternately transferred onto the terminal end of each roller conveyor 62r. The air cylinder 62g is provided with a guide sensor 85 that uses a limit switch to detect when the rond has reached its advance limit or retreat limit.

In addition, between each roller conveyor 62r and 62r on the side of the end of the guide 62e, there is a center guide 62t.
are erected, and side guides 62u, 62u are erected on the outside of each pair of roller conveyors 62, respectively.

For distribution, a holding plate 62k is attached to the upper center of the guide 62e, which is inclined so that the starting end side is upward, and the seedling boxes conveyed by the belt conveyor 61 are transferred onto each roller conveyor 62r. This reduces the impact caused by the nursery box changing from an inclined state to a horizontal state when the seedling nursery is placed in a horizontal position.

FIG. 12 is a front view showing another embodiment of the guide 62e, in which the holding plates 62k' are arranged on each side of the guide 62e and are inclined so that the starting end side is upward.
, 62k' are installed respectively.

In the middle of the roller conveyor pair 62 in the conveyance direction, a pair of photoswitches are arranged to face each other in a vertically inclined manner with each conveyance area sandwiched between them in order to detect the seedling growing boxes conveyed on each roller conveyor 62r. Seedling box transport sensor 81a, 81
b are arranged respectively.

A stopper 624 made of an elastic material is integrally disposed at the end of each roller conveyor 62r, and stops the seedling growing boxes being conveyed at the end of each roller conveyor 62r. Furthermore, a shelving pusher 68 is disposed on one side of the terminal end for integrally pushing the seedling raising boxes conveyed to each terminal end toward the other side. The shelving butcher 68 is mounted on the elevator platform 63 so as to be located on one side of the pair of roller conveyors 62.
An air cylinder 68a mounted above, guide shafts 68b, 68b slidably arranged on both sides parallel to the direction of rod movement of the air cylinder 68a, and a rod tip of the air cylinder 68a and the guide shaft 6.
8b, 68b, and a pushing member 68c attached to the roller conveyor side end. When the air cylinder is operated and the rod is advanced, the two seedling boxes located at the end of each roller conveyor are moved to the shelving pusher 68. It is pressed by a pushing member 68c and stored on one shelf of a storage cart 75, which will be described later, which is arranged opposite to the storage cart 75, which will be described later.

Rubber is attached to the surface of the pushing member 68c that comes into contact with the seedling box. A seedling box storage sensor 82 using a reed switch is installed in the air cylinder 68a to detect that the rod has advanced a predetermined length and the seedling box has been stored in the shelf.
is provided.

Below the roller conveyor 62, a removable tray 63f having a size that covers the entire conveying area is placed on the lifting platform 63, and mud etc. that fall from the seedling nursery boxes are stored in the tray 63f. The saucer 63f
can be pulled out from below the roller conveyor pair 62, making it easy to clean and maintain the roller conveyor pair 62, lifting platform 63, etc.

A cover 2n that can be opened and closed is provided at the starting end of the roller conveyor pair 62.

FIG. 13 is a front view of the storage cart 75. The storage stand.

The car 75 is framed in the shape of a rectangular parallelepiped, and three rows of shelves each having a large number of shelves in the vertical direction are formed in the longitudinal direction, and each shelf can store two seedling boxes. It is being done. Casters 75a are installed at each corner of the bottom of the storage cart 75.
are provided for each.

On the opposite side of the lifting platform 63 from the placement position of the shelving butcher 68, a pair of chains 71a parallel to the conveyance direction of the roller conveyor pair 62 are provided to transport the storage cart 75 along the roller conveyor pair 62. A chain conveyor 71 made of 71a is provided, and the chain conveyor 71 has a conveyance distance that is sufficiently longer than the conveyance distance of the roller conveyor pair 62. The chain conveyor 71 is driven by a motor 71b disposed at its end in the conveyance direction.

Around the conveyance area of the chain conveyor 71, two guide bodies 72a and 72b are arranged in parallel in the conveyance direction, and are framed so as to surround a storage cart 75 that is carried on the chain conveyor 71 and moves. At the starting end of the chain conveyor 71, the bottom of the storage cart 75 is connected to the chain conveyor 71.
The casters 7 at the bottom of the storage cart 75 are placed on top of the storage cart 75.
A pair of guide rails 73 for guiding the chain conveyor 71 are provided so as to be inclined so that the starting end side of the chain conveyor 71 is on the upper side.

An air cylinder is used at the center of the end of the chain conveyor 71, and by advancing the rod, a cushioning material attached to the tip of the rod is brought into contact with the bottom of the end of the storage cart 75 that is transported on the chain conveyor 71. three stoppers 73a for stopping the movement of the storage cart 75;
73b and 73c are provided along the conveyance direction of the chain comparer 71, respectively. Stopper 73a on the terminal end side
is a storage cart 75 transported by a chain conveyor 71.
When the shelf row on the starting end side is in a position facing the shelving button 68 in the shelving device 60, the tip of the terminal end side of the cart 75 is located, and the central stopper 7
Similarly, in 3b, the central shelf row of the cart 75 is the shelf holder 6.
8, the stopper 73 is arranged at the bottom tip position on the terminal end side of the trolley 75 when it is in a position opposite to the stopper 73 on the starting end side.
c is arranged at the tip position of the bottom end of the cart 75 when the shelf row on the terminal end side of the cart 75 is in a position facing the shelving button 68.

A guide body on the terminal end side in the conveying direction above the chain conveyor 71? Three cart sensors 83a are provided on the upper part of the storage cart 75, which is formed by a pair of photoswitches facing each other across the transport area, in order to detect the upper end of the storage cart 75 in the transport direction, which is transported by the chain conveyor 71.

83b and 83c are arranged slightly toward the starting end in the conveyance direction from the upper position of each stopper 73a, 73b, and 73c provided at the end of the chain conveyor 71. Further, above the starting end side of the guide body 72b on the other side, a cart sensor 83d using a similar photosensor is arranged.

A columnar level needle 74 is provided upright on the side of the shelving device 60 opposite to the shelving button 68, and the level gauge 74 has a level needle 74 installed on the side facing the shelving button 68. Slits 74a, 74a, . . . are formed corresponding to the height position of each shelf.

A level sensor 84 consisting of a pair of photoswitches facing each other with the level meter 74 in between is disposed on the upper surface of the lifting table 63.

A germination section 94 is formed on the side of the chain conveyor 71 to control the atmosphere of the storage cart 75 in which seedling boxes are stored (see Fig. 1).The germination section 94 is formed on the floor surface. Water was charged into a large number of pits 93, each pit 93 was covered with a lattice lid 91 such as a grid, and Erofin was introduced into each pit 93 as a heat exchanger and heated by a boiler 95. By sending hot water to the Elofin, the water in the pit 93 is heated to generate steam, and the storage cart 75 full of sown seedling boxes is placed in each pit 9.
germination of each seedling raising box is promoted.

FIG. 14 is a block diagram of the control system of the shelving device according to the present invention. In the figure, 90 is a sequencer that operates the shelving devices in a predetermined order, and the input to the sequencer 90 is that the seedling boxes are being conveyed on each roller conveyor 62r, 62r in the roller conveyor pair 62. Seedling box sensors 81a and 81b for detection are provided in the air cylinder 68a of the shelving button 68,
A seedling box storage sensor 82 is provided above the guide body 72a in the conveyance area of the chain conveyor 71 to detect that the seedling box is stored on the shelf of the storage cart due to the advancement of the Rondo, and the storage cart 75 is placed in a predetermined position. Carriage sensors 83a, 83b, 83c detecting the arrival of the car, cart sensor 83d arranged above the guide body 72b, and lifting platform 63.
A level sensor 84 for detecting the height position of the guide 62e is provided in an air cylinder that drives the guide 62e, and the output of the guide sensor 85 is for detecting the position of the guide 62e.

The output of the sequencer 90 is a motor 61a that drives the belt conveyor 61, a motor 62a that drives each drive roller 62b in the roller conveyor 62r, and a motor 71 for the chain conveyor 718) that transports the storage cart 75.
b, a hydraulic cylinder 63c for raising and lowering the lifting platform 63, an air cylinder 62g for driving the guide 62e, an air cylinder 68a for driving the middle shelving brush 68, arranged in the conveyance area of the chain conveyor 71; Air cylinders 73 for driving stoppers 73a, 73b, and 73c that stop the transport of storage carts 75 transported by
d, 73e, and 73f, respectively.

The operation of the shelving device according to the present invention having such a configuration will be explained. In the seeding device 50, seeds are sequentially sown in the seedling raising boxes, and the seedling raising boxes that have been sown are transferred to the belt conveyor 61 in the shelving device 60 by the feeding conveyor 51.
They are transported upward one after another. At this time, a storage cart 75 is placed in advance on the chain conveyor 71 on the side of the shelving device 60, and when this state is detected by the cart sensor 83d, the motor 71b for driving the chain conveyor 7I is activated. The storage cart 75 is moved guided by the guide body 72b, and when the terminal end in the conveyance direction is detected by the cart sensor 83c, the air cylinder 13f is operated to operate the stopper 73c and the chain conveyor 75 is moved. The drive of 71 is stopped. As a result, the shelf row on the terminal end side in the conveyance direction of the storage cart 75 is positioned opposite to the shelving pusher 68 in the shelving device 60.

On the other hand, the elevating table 63 in the shelving device 60 is at the lowest position, that is, the upper surface of the pair of roller conveyors 62 placed on the upper side is the storage cart 75 placed on the chain conveyor 71.
The guide 62e is positioned opposite to the lowest shelf of the roller conveyor pair 62, and the guide 62e is arranged so that its rear opening is positioned above the roller conveyor 62r on the side closer to the chain conveyor 71. air cylinder 62
The g rod has been advanced. In this state, the sown seedling growing boxes are conveyed by the belt conveyor 61 onto a pair of roller conveyors 62, and the distributed portion is conveyed onto the roller conveyor 62r on the side closer to the chain conveyor 71 by a guide 62e.

The seedling growing box conveyed onto the cough roller conveyor 62r is conveyed to its terminal end, contacts the stopper 621, and stops on the terminal end. At this time, when the seedling box sensor 82a detects that the seedling box is being conveyed on the roller conveyor 62r, the air cylinder 62g is operated to move the rod in and out, and the rear end of the guide 62e' is distributed to the other side. When the guide sensor 85 detects this state, the operation of the air cylinder 62g is stopped. Then, the seedling box to be conveyed next is positioned on the other roller conveyor 62r by the guide 62e, and is conveyed to the terminal end by the roller conveyor 62r, where it stops at the stopper 62r.
I! When the seedling box sensor 82b detects that the seedling box is being conveyed on the roller conveyor 62r, the air cylinder 62,
The rod is advanced a predetermined amount and the shelving pusher 68
The air cylinder 68a in is operated to advance the rod, and each seedling growing box located at the end of each roller conveyor 62r is integrally placed on the lowest shelf of the row of shelves at the end in the conveyance direction in the storage cart 75. It is pushed into the tiers and stored. When the seedling box storage sensor 82 detects that the air cylinder 68a has advanced a predetermined amount and the two seedling boxes have been stored on the lowest shelf, the air cylinder 68a is operated to allow the rod to enter, and A hydraulic cylinder 63c for raising and lowering the lifting table 63 is operated to raise the lifting table 63.

The height position of the lifting platform 63 is detected by a level sensor 84.
When it is detected that one shelf has been raised, the operation of the hydraulic cylinder 63c is stopped, and therefore the roller conveyor 62
The upper surface faces the second shelf from the lowest side of the storage cart 75 placed on the chain conveyor 71. In such a state, the seedling boxes transported as described above are sequentially transported to the terminal end of each roller conveyor 62r and juxtaposed at the terminal end, and are integrally stacked on the storage cart 75 by the shelving pusher 68. It is stored on a shelf and the lifting platform 63 is placed at 1
Raise the shelf level.

By repeating such an operation, when the seedling boxes are stored in all the shelves of the shelf row on the end side in the conveyance direction in the storage cart 75, the stopper 73c arranged in the conveyance area of the chain conveyor 71
The driving air cylinder 73f is operated to release the stopped state of the storage cart 75 caused by the stopper 73c, and the motor 71b is activated to operate the chain conveyor 71.
to drive. As a result, the storage cart 75 is transferred to the end in the conveyance direction, and when the end in the conveyance direction is detected by the cart sensor 83b, the air cylinder 73e of the stopper 73b arranged in the conveyance area of the chain conveyor 71M1 is operated. The operation of the chain conveyor 71 is stopped, and the central row of shelves in the storage cart 75 is made to face the shelving butcher 68. During this time, driving of each roller conveyor 62r is stopped. In this state, the drive of each roller conveyor 62r is restarted, and the seedling box is placed on each roller conveyor 6.
It is transported to the 2r terminal end. In this case, since the lifting platform 63 is at the uppermost position, the seedling raising boxes are stored in the central row of shelves of the storage cart 75 sequentially from the uppermost shelf to the lower side, and the seedling raising boxes are placed on each shelf. The storage operation is the same as described above,
Each time a seedling box is stored on each shelf, the lifting platform 63 is lowered by one shelf.

When the storage of the seedling boxes on the shelves in the central shelf row of the storage cart 75 is completed, the storage cart 75 is conveyed by the chain conveyor 71 in the same manner as described above, and the shelf row on the starting end side in the conveyance direction of the storage cart 75 is placed in the shelf storage. It is placed in a position facing the bushing 68, and then the two seedling growing boxes are integrally stored on one shelf from the lower shelf.

When the storage of the seedling boxes on all shelves in the storage cart 75 is completed, the storage cart 75 is lowered from the chain conveyor 71 and positioned above each pit 93 in the germination section 94, and the storage cart 75 is placed in this position. Germination in each seedling box is promoted by controlling the atmosphere.

In the above-described embodiment, if the slit position is configured to be changeable using a sliplifter or the like, even if the position of each shelf in the storage cart is changed, it can be easily adjusted, and troublesome (shelving) work can be performed.

〔effect〕

According to the present invention, since it is possible to accurately detect the height position of the lifting platform on which the raising/lowering table is placed with respect to each shelf of the storage shelf, the raising/lowering control of the lifting stand can be performed with high precision, and the raising/lowering table is placed on the storage shelf. The materials are reliably transferred to each shelf.

In addition, in the above embodiment, the height position of the lifting platform with respect to each shelf of the storage cart is detected using a photoswitch and a level meter with a slit formed in the column, so the detection accuracy is significantly improved. Since it is non-contact, it has excellent durability.

[Brief explanation of drawings]

The drawings show embodiments of the present invention; FIG. 1 is a layout diagram of a seedling-raising facility, FIG. 2 is a partially cutaway sectional view of the seedling-raising facility, FIG. 3 is a side view of a portion thereof, and FIG. 4 is a diagram illustrating the present invention. 5 is a plan view of the shelving device, FIG. 6 is a side view of the main parts, FIGS. 7 and 8 are sectional views of the same side, and FIG. The plan view, Figure 10 is the plan view, and Figure 11 is the top view.
The figure is a partially cutaway plan view of the starting end of the roller conveyor, Figure 12 is a front view showing another embodiment of the distribution guide, Figure 13 is a front view of the storage cart, and Figure 14 is the control of the device of the present invention. FIG. 2 is a block diagram of the system. 10... Seedling box set 20... Stock conveyor 30
... Lowering lift 40 ... Seedling box supply device 50 ...
・Seeding device 60... Shelving device 61... Belt conveyor 62... Roller conveyor pair 62g... Air cylinder 63... Elevating platform 68... Shelving button 68a... Air cylinder tough 1 ...Chain conveyor 74...Level pillar 74a...Slit 75...Storage cart 84...Level sensor 94
...Germination part patent Applicant: 1 person other than Yanmar Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. In a seedling box shelving device that transfers the sown seedling growing boxes that have been sequentially transported to each shelf of a storage shelf that has a large number of shelves in the vertical direction, the sown seedling growing boxes are sequentially transported. an elevating platform placed on the elevating platform, an elevating drive device for the elevating platform, and an elevating platform that is arranged opposite to the storage shelf with the elevating platform in between, and a seedling box placed on the elevating platform is placed on each shelf in the storage shelf. It is equipped with a pushing machine that transfers by pushing, and a height detector that is attached to the lifting platform and detects the relative height of the lifting platform and each shelf of the storage shelf. A shelving device for seedling boxes, characterized in that the height position of the lifting platform is adjusted in accordance with the position of the raising/lowering platform.