JPH0858919A - Automatic warehouse - Google Patents

Abstract

PURPOSE: To prevent the housing capacity from being lowered and the working efficiency in storing and shipping from being lowered caused by the increase of incompletely loaded pallets. CONSTITUTION: In an automatic warehouse for storing and shipping at least one housing article case placed on the pallet to and from a rack part of plural lines of racks 4 composed of plural rack parts by pallet, and for performing storage and shipment by stacker cranes 3a to 3c provided every two lines of the racks 4, small size conveying machines 5a to 5d capable of taking in and out the housing article case by case are provided on the sides on which the stacker cranes 3a to 3c of the racks 4 are not provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automated warehouse having a function of loading and unloading stored items.

[0002]

2. Description of the Related Art Conventionally, an automatic warehouse has been widely used in which a stacker crane is used for loading and unloading stored items in pallet units. In such an automated warehouse, stored items are stored on a pallet, which is stored on a shelf in the warehouse.

FIG. 3 is a block diagram of a conventional automatic warehouse. This automatic warehouse has a pallet receiving table 21 on which pallets are installed when carrying out a storage operation, a pallet receiving table 22 on which pallets are unloaded, a stacker crane 23, and a plurality of stations in a vertical direction. Has a plurality of stages,
It is configured by a shelf 24 capable of accommodating one pallet at each position determined by the designation of the tier.

Usually, a plurality of shelves 24 are installed in such an automated warehouse, and one stacker crane 23 loads and unloads pallets in the two shelves 24. Further, one pallet receiving stand 21 and one pallet leaving stand 22 are provided for one stacker crane 23.

In such an automated warehouse, the pallets are loaded by the stacker crane 23 carrying the pallets from the pallet loading table 21 and storing the pallets in a designated portion (continuous stage) of the shelves 24. Similarly, the pallet delivery is performed by the stacker crane 23 taking out the pallet at the designated portion (continuous stage) of the shelf 24 and setting it on the pallet delivery table 23.

[0006]

Therefore, in the above automatic warehouse, one stacker crane 23 manages the two rows of shelves 24, and the stacker crane 23 loads and unloads the stored items in pallet units. There is.

By the way, among the pallets that store the stored items as described above, the pallet that stores the maximum loaded amount of the stored items is called a full pallet, and the pallet that does not reach the maximum loaded amount is called a fractional pallet. In addition, one packaging unit of the stored items on the pallet is called a case.

Therefore, although the smallest unit of the stored item is the case, the storage of the stored item can be performed only by the pallet unit as described above. Therefore, when the pallets occupying the shelves 24 are only full pallets, the storage efficiency of the warehouse is maximized. However, when the ratio of fractional pallets increases, not only the storage efficiency decreases, but also when the warehousing is performed. Work efficiency will also deteriorate. On the other hand, in order not to reduce the work efficiency at the time of unloading, it is necessary to unload the pallet as close to the full pallet as possible, so that the number of fractional pallets increases more and more.

Therefore, under the present circumstances, when the number of fractional pallets increases and the storage efficiency of the warehouse and the efficiency of the warehousing work decrease, the fractional pallets are unloaded and the work of collectively converting them into full pallets is performed. This work is performed manually in the case of a medium-sized warehouse (small and medium delivery center), and in the case of a large-scale warehouse (large delivery center).
This is done using a device called a depalletizer (automatic stacking device) / palletizer (automatic stacking device).

It takes a great deal of labor to perform the work of converting to such a full pallet. Also, the depalletizer (automatic stacking device) / palletizer (automatic stacking device) is expensive,
Moreover, even if this is introduced, some burden on workers is required. In any case, a work place for the above work must be provided in or near the warehouse, and it is necessary to secure a place for that.

Further, in the work of converting to a full pallet, the fractional pallet must be discharged and then the stored items must be stored. During that time, the stacker crane is occupied and a large amount of power is required to move the stacker crane. To do.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide an automatic warehouse which prevents a decrease in storage capacity even when the number of fractional pallets increases. Another object of the present invention is to provide an automatic warehouse that prevents a decrease in work efficiency such as loading and unloading.

[0013]

In order to solve the above-mentioned problems, the invention according to claim 1 has a plurality of rows of shelves each having a plurality of shelves, and each two adjacent rows of shelves. In an automated warehouse that uses a stacker crane to load and unload at least one storage case on a pallet in shelves in pallet units, the storage case can be loaded and unloaded on a shelf side opposite the stacker crane. It is an automated warehouse equipped with a small carrier that enables it.

Further, in the invention corresponding to claim 2, a plurality of rows of shelves having a plurality of shelves are arranged, and at least one case on a pallet is used by using a stacker crane arranged for every two adjacent rows of shelves. In an automated warehouse where pallet-based storage cases are loaded and unloaded from the shelves, a small transporter that allows storage of storage cases on the shelf side opposite the stacker crane and storage cases are provided. It is an automatic warehouse provided with an warehousing / transportation selecting means for loading and unloading by selecting either a stacker crane or a small-sized transporter according to a preset rule when loading or unloading.

Further, in the invention corresponding to claim 3, a plurality of rows of shelves having a plurality of shelves are arranged, and at least one case on a pallet is used by using a stacker crane arranged for every two adjacent rows of shelves. In an automated warehouse that loads and unloads the storage case in pallets into shelves, a small carrier that enables storage of the storage case on the shelf side opposite to the stacker crane and a small carrier When moving the storage case from one shelf to another shelf, between the shelf designating means for designating the source shelf and the destination shelf, and the shelf designated by the shelf designating means. A control means for controlling the movement of the storage case by the small carrier is provided to reduce the filling rate of the storage case of the movement source shelf while increasing the filling rate of the storage case of the movement destination shelf. Housing case An automatic warehouse is provided to allow for consolidation.

Further, the invention corresponding to claim 4 is
In the invention corresponding to any one of claims 1 to 3,
It is an automated warehouse with a fork for loading and unloading storage cases by a small carrier.

[0017]

Therefore, according to the invention corresponding to claim 1, by taking the above-mentioned means, the stacker crane loads and unloads the stored items in pallet units to the shelves, and at the same time, the case is handled by the small carrier. Items can be put in and taken out in units. Furthermore, since the small-sized transporter can take in and out the contained items in units of cases, it is possible to move the contained item case from one shelf to another shelf.

The invention according to claim 2 has the same operation as that of the invention according to claim 1, and also has a stacker crane and a small-sized transporter when loading and unloading a stored item by the loading / unloading transport selecting means. Which of these is used is automatically selected according to a preset rule. Therefore, highly flexible and efficient warehouse operation can be performed according to the filled state of the stored items in the warehouse or the number of stored items to be put in and out.

Furthermore, in the invention according to claim 3, in addition to the same operation as the invention according to claim 1, the shelf designating means designates the source and destination of the storage case. Further, the control means controls to move the storage case between designated shelves, and as a result, the present invention reduces the filling rate of the storage case of the original shelf while moving the storage case of the destination. It is possible to increase the filling rate of the storage case of the shelf. By further using this function, the movement source shelf is eventually emptied. In this way, the storage case can be integrated and the storage efficiency of the warehouse can be improved.

Furthermore, the invention corresponding to claim 4 is as follows.
In addition to the same operation as the invention corresponding to claims 1 to 3, since the small-sized transporter has a fork, by inserting the fork between the storage case and lifting it, and then pulling the fork out, The case can be loaded and unloaded.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of an automated warehouse according to the present invention. This automatic warehouse includes a pallet receiving table 1 on which pallets are installed during a storage operation, a pallet receiving table 2 on which outgoing pallets are placed, and a stacker crane 3
Has multiple stations in the moving direction and multiple steps in the elevating direction,
A shelf 4 capable of accommodating one pallet at a position determined by the designation of a series and a tier, and a small carrier 5 having a fork for taking in and out the accommodation items on the pallet accommodated in the shelf 4 in case units, It is composed of a case storage table 6 and a case storage table 7 used when the small transporter 5 stores and stores the goods, and a control device 8.

The case of the items to be stored on the pallet is directly stacked on the pallet. Or under each case, corresponding to each case,
A small pallet into which the fork of the small carrier can be inserted is placed and stacked on the pallet integrally with the small pallet. Alternatively, a frame body containing a plurality of cubic spaces is placed on a pallet, and a case of a stored item is placed in each cubic space of the frame body.

In the small carrier 5, after inserting the fork directly between the housing cases, the small pallet fork, or the fork between the case and the frame,
The forks can be taken out in case units by lifting the forks, and can be loaded and unloaded in case units by pulling out the forks after lowering the cases.

Next, FIG. 2 is a diagram showing the structure of the control device. The control device 8 includes an input / output interface 9 that transmits / receives control signals and input signals to / from the stacker crane 3, the small-sized transporter 5, the pallet loading platform 1, the pallet loading platform 2, the case loading platform 6 and the case loading platform 7. A control unit 10 for controlling the stacker crane 3, the small carrier 5, and the like via an input / output interface 9 is provided.

Further, the control device 8 is instructed which one of the stacker crane 3 and the small-sized carrier 5 is to be used at the time of loading and unloading, and a loading and unloading carrier instructing means 11 having an automatic loading and unloading function, The storage / receipt position designating means 12 for designating the storage / receipt position of the shelves 4 when the stored goods are moved in and out or between the pallets, and an instruction for moving the case between the pallets in the shelves 4 by the small carrier 5. Further, there are provided inter-pallet movement instruction means 13 in which the automatic pallet gathering function is set, and an input / output unit 14 for sending data input by the operator to the control unit 10 and displaying required data. There is.

In the automated warehouse of this embodiment, for example, six shelves 4 are installed, and one stacker crane 3 loads and unloads the pallets in the two shelves 4. The stacker crane 3a is located between the shelves 4 in the first and second rows, and the stacker crane 3b.
Is provided between the shelves 4 in the third and fourth rows, and the stacker crane 3c is provided between the shelves 4 in the fifth and sixth rows. Further, the small carrier 5a is located at an alternate position from the stacker crane 3, that is, on the opposite side of the stacker crane 3a of the first row of shelves 4, the small carrier 5b is located between the second and third rows of shelves 4, and the small carrier. 5c is between the shelves 4 of the 4th and 5th rows, and the small carrier 5d is the 6th.
One set is provided on each of the rows of shelves 4 on the opposite side of the stacker crane 3c. At this time, the small carrier 5b,
One set of 5c is for putting the cases in and out of the shelves 4 in two rows.

Further, one set of the small-sized carrier of each item is composed of a plurality of small-sized carriers. These small carrier 5
Are installed for each station on the shelf 4. For example, the small carrier corresponding to the first row of shelves 4 is 5b1,5
b2, 5b3 ...

However, the small carrier 5 may be installed, for example, one for each stage. In addition, when there are many cases of loading and unloading on a case-by-case basis, the required number of spare machines may be installed to increase the carrying capacity.

The small carrier 5 is in the step direction (up and down direction).
It is possible to move in the continuous direction (front-back direction). The moving path in the continuous direction is provided at the break of each step of the shelf 4. Since the moving path is installed on the shelf 4 at each step, there is no need for auxiliary equipment such as special reinforcement for providing the moving path in the connecting direction, and the moving path may be an obstacle to the storage and retrieval of the stored items. Absent.

On the other hand, the moving path in the step direction is provided at the break of each series. Since a pillar for supporting the shelf 4 is provided here, and the moving path is attached to this pillar, no additional equipment such as special reinforcement for providing the stepwise moving path is required, and the moving path is It does not interfere with the storage of goods.

For the stacker crane 3 of each item or the small-sized carrier 5 of each item, a pallet receiving table 1 and a pallet receiving table 2 or a case receiving table 6 are provided, respectively.
Also, one case delivery stand 7 is provided.

The warehousing / transportation selecting means is composed of, for example, a control unit 10, warehousing / transporting machine instructing means 11 and warehousing / moving position designating means 12, and the shelf designating means is
For example, the control unit 10 and the loading / unloading position designating unit 12 are configured, and the control unit is configured by, for example, the control unit 10 and the inter-pallet movement instructing unit 11.

Next, the operation of the automatic warehouse of the present embodiment constructed as described above will be explained. First, the loading / unloading operation by the stacker crane 3 will be described. First, a pallet for loading stored items is placed on the pallet storage table 1 at a stacking and unloading work place. Next, the pallet storage platform 1 is transported to a place where the stacker crane 3 can store the pallets. Then, the stacker crane 3 lifts the pallet for storing the stored items, and stores the pallets at the row, continuous, and column positions of the shelves 4 designated by the loading / unloading position designating means 12 in the control device 8. Hereinafter, such pallet-based warehousing by the stacker crane 3 is referred to as “pallet warehousing”.

At the time of warehousing, the stacker crane 3 takes out the stored items together with the pallet from the position of the row, the line, and the row of the shelves 4 designated by the warehousing / leaving position designating means 12, and lowers them on the pallet delivery table 2. Pallet delivery stand 2 with pallets
Are stacked and transported to the unloading work area, where
The contained items are unloaded. Hereinafter, such pallet-based unloading by the stacker crane 3 will be referred to as “pallet unloading”.

Next, the loading / unloading operation by the small carrier 5 will be described. First, before starting the warehousing operation, the warehousing / receipt position designating means 12 in the control device 8 confirms whether or not there is a fractional pallet containing the wares of the same kind as the warehousing to be stored. If the fractional pallet does not exist, a warning is issued, the fact that the pallet cannot be stored is notified, and the storage operation is stopped.
If there is a fractional pallet and it can be stored, at the stacking and unloading work place, the required number of cases is the case storage unit 6 which is the minimum storage unit for stored items.
Can be posted on. Then, the case storage table 6 moves to a place where the small carrier 5 can store the goods.

Next, if there is a small carrier 5 that is closest to the case storage table 6 and is not performing any work, the small carrier 5 loads the case from the case storage table 6 with a fork and loads it. The storage case is stored at the position of the row, the line, or the stage designated by the delivery position designating means 12. After that,
The case-by-case warehousing by such a small carrier 5 is called "case warehousing".

When the cases are continuously stored in the case, the small-sized carrier 5 is connected to the second series while the first case is stored.
Stand by at the position of one stage or two stages. Which position should be put on standby depends on the storage position of the first case storage.
If it is the first station, it is made to stand by in two stations and one stage, and if it is the second station and thereafter, it is placed in one station and two stages. In the previous small carrier 5, after the storage case is loaded, after moving to the 1st and 2nd stages or the 2nd and 1st stage and beyond, the waiting small carrier 5 moves to the storage entrance, and from the case storage stand 6 Start loading the next storage case. The same operation is repeated to store the continuous cases.

In the case where a small carrier is used for delivery (that is, "case exit"), the small carrier 5 closest to the position of the shelves, stations, or columns designated by the loading / unloading position designating means 12 is a storage case for a pallet. Take out with a fork. After loading the stored items, the small-sized carrier 5 descends to the first stage, then moves between the stations to the exit port and lowers the case onto the case stand 7. The case output stand 7 on which the case is placed is moved to the stacking / unloading work place,
Therefore, the stored items are unloaded. Further, the small-sized transporters 5 with the case lowered on the case delivery table 7 are lifted in a row in a single row.

Therefore, when the same pallet is continuously loaded from the case, the small carrier 5 next to the pallet next to the preceding small carrier 5 is made to stand by at the same upper stage of the unloading position. The preceding small carrier 5 takes out the stored item case from the pallet, lowers the stage, and then the small carrier 5 on standby starts the work of taking out the next stored item.

Further, when the pallets in the shelves 4 are accommodated, the case can be moved from one pallet to another pallet (that is, "case movement between pallets"). The operation of moving the case between the pallets in the shelf 4 by the small carrier 5 will be described.

First, the small-sized transporter 5 closest to the position of the row, station, or stage in the shelf 4 designated by the loading / unloading position designating means 12 or the operator removes the storage case from the pallet with a fork. After loading the stored items, the small-sized transporter 5 unloads the case on the pallet at the row, line, or column position in the shelf 4 designated by the loading / unloading position designating means 12 or the operator.

When it is desired to continuously perform "case movement between pallets", the small-sized carrier 5 next to the pallet next to the preceding small-sized carrier 5 is made to stand by in the same upper stage of the delivery position. . The preceding small carrier 5 takes out the storage case from the pallet, starts moving to the pallet of the loading / unloading destination, and after moving one or more stages, the small carrier 5 on standby waits for the next stored product. The work of taking out is started.

In the case of this embodiment, the small carrier 5a is the first
The case movement between the pallets in the shelves 4 of the rows, the small carrier 5b or 5c is the case movement between the pallets in the shelves 4 of the second and third rows or the fourth and fifth rows, and the small carrier 5d, respectively. , Case movement between pallets in the sixth row of shelves 4 can be performed.

The above is the basic operation performed by the stacker crane 3, the small carrier 5, the pallet receiving table 1, the pallet receiving table 2, the case receiving table 6 and the case receiving table 7 in the automatic warehouse of this embodiment. . However, the automated warehouse of this embodiment performs the following operations by using the function of the control device 8 and further combining the above operations.

First, the above-mentioned "pallet warehousing", "pallet warehousing", "case warehousing", "case warehousing" or "case movement between pallets" is automatically performed for each basic operation according to the operator's judgment and instruction, or It is possible to operate in each operation unit of each basic operation. In this case, the operator inputs necessary work into the input / output unit 14 of the control device 8,
The control unit 10 controls the stacker crane 3, the small carrier 5, and the like via the input / output interface 9 according to the input instruction. Also, these basic operations can be performed in parallel.

Next, the operating condition is set with respect to the loading and unloading of the stored items, so that the control device 8 automatically determines which of the stacker crane 3 and the small carrier 5 is used for loading and unloading. .

The operating conditions at this time are set in advance in the loading / unloading carrier instruction means 11 through the input / output unit 14. Then, when the operator selects the automatic loading / unloading at the time of loading / unloading of the stored item, the loading / unloading transporting machine instructing means 11 uses the stacker crane 3 or the small transporting machine 5 according to the set operation condition. Is designated to the control unit 10. Further, when the storage / receipt position designating means 12 designates the row, the line, and the stage position of the articles to be stored and stored, the control unit 10 causes the necessary devices (for example, in the case of the stacker crane 3 to store the goods, through the input / output interface 9). The control signal is sent to the stacker crane 3 and the pallet loading / unloading stand 2) to automatically load / unload the stored items.

There are various ways of deciding the operating conditions relating to the storage / receipt of stored items, but as an example of efficiently operating the automated warehouse, the following operating conditions are determined in this embodiment. (1) When the full pallet or the number of stored items on the pallet exceeds a certain number, the stacker crane 3 performs "pallet warehousing" when warehousing is performed. (2) If the number of stored items on the full pallet or on the pallet is equal to or greater than a certain number, the stacker crane 3 performs “palette unloading”. (3) Even if the number of stored items is less than the above fixed number, if all the items on the pallet are used,
"Pallet delivery" is performed by the stacker crane 3. (4) If the total number of cases that can receive the fractional pallets in the warehouse rack 4 is equal to or larger than the planned number of goods when the less than a certain number of goods are stored, the small-sized carrier 5 performs “case storage”. However, at this time, if the total number of cases that can be received is less than the planned storage number, the stacker crane 3 performs “pallet storage”. (5) When the number of pallets is less than the above-mentioned fixed number and there is no fractional pallet below the planned number of warehousing in the warehouse shelves 4, the small carrier 5 performs “case unloading”. If there are fractional pallets that are less than or equal to the planned number of warehousing, the "pallet unloading" in (3) is performed the necessary number of times and the remaining "case unloading". At this time, if the number of cases issued by "pallet issue" matches the required number of issues, "case issue" is not necessary.

Further, the automatic warehouse of this embodiment has an automatic pallet gathering function utilizing "case movement between pallets". Such a function will be described. Pallet consolidation is to move all the stored items in a fractional pallet to another fractional pallet or other fractional pallets to remove all the stored items from the fractional pallet, "Pallet out". Consolidation of pallets improves storage capacity in the warehouse.

Such pallet gathering can be performed by combining "case movement between pallets" and "pallet unloading", but in the present embodiment, this can also be done automatically.

When the operator turns on the automatic pallet gathering function, the information on the fractional pallets in the warehouse stored in the control unit 10 is retrieved, and the fractional pallet is assigned to each of the small transporters 5a to 5d and each of the shelves 4. Is displayed on the input / output unit 14.

After confirming this information, the operator turns on the automatic aggregation execution. The automatic aggregation execution can be performed for each group of small transporters 5a to 5d, or can be performed simultaneously for all groups of small transporters.

After instructing the automatic consolidation, the inter-pallet movement instructing means 14 determines how many cases are to be moved from which fractional pallet to which fractional pallet. If multiple destination fractional pallets are required, all of them are determined. After the case movement relationship is determined, the loading / unloading position designating means 12 designates the movement source pallet and the movement destination pallet to the small-sized carrier 5, and the control unit 10 executes the movement work by "case movement between pallets". Let After that, the pallets that have become empty are “palette-delivered” by the stacker crane 3, and the automatic pallet consolidation is completed.

As described above, the automatic warehouse according to the present embodiment is provided with the stacker crane 3 and the small carrier 5 on both sides of each shelf 4, and the stacker crane 3 is used for loading and unloading in pallet units, and the small carrier 5 is used for the case. Since it is designed to move in and out of units and move cases between pallets,
When the number of warehousing / unloading is small, it is not necessary to use the stacker crane 3 that uses a large amount of electric power, so that energy saving can be realized. Moreover, since the goods can be stored in units of cases, the capacity of the automated warehouse can always be maximized.

Further, it is possible to increase the number of stored items in the fractional pallet, and the stored items are efficiently stored. Therefore, since the number of stored items in the fractional pallet is large and the number of pallets in the full pallet can be large, the work efficiency at the time of warehousing can be improved. Further, in the automatic warehouse having only the conventional stacker crane, when a small number of pallets had to be stored, it was necessary to store the pallets again, but in this embodiment, it is possible to store the pallets, so that there is no need for re-storage and the work efficiency is good.

Further, by moving the case between the pallets, the pallets can be integrated and the number of shelves used can be reduced, so that the storage efficiency can be improved. Conventionally, this work was performed by many workers or expensive depalletizers (automatic destacking devices) / palletizers (automatic stacking devices) after the pallets were unloaded, but there is no need for unloading or the like, and the work place is reduced. Since it is not necessary, it not only saves labor and equipment, but also saves space.

In addition, the automatic warehouse of this embodiment has two independent
Stacker crane 3 because it has a system loading and unloading means
Alternatively, even when any abnormality of the small-sized transporter 5 is detected and stopped, it is possible to continue the loading / unloading work by the other loading / unloading means and not stop the function as the automatic warehouse. .

Further, as described above, the automatic warehouse according to the present embodiment is provided with the stacker crane 3 and the small carrier 5 on both sides of each shelf 4, and the stacker crane 3 is used for loading and unloading on a pallet basis, and the small carrier 5 is used. In order to carry out warehousing and warehousing in case units and to move cases between pallets, further, a warehousing / transporting machine instructing function means 11 is provided, and at the time of warehousing / loading, the stacker crane 3 or small-sized transportation is automatically performed according to preset operating conditions. Since the machine 5 is selected, in addition to the effects described above, the automatic warehouse can be operated more efficiently, and the burden on the operator and the worker can be reduced.

Further, as described above, the automatic warehouse according to the present embodiment is provided with the stacker crane 3 and the small carrier 5 on both sides of each shelf 4, and the stacker crane 3 is used for loading and unloading in units of pallets, and the small carrier 5 is used. With this, you can move goods in and out on a case-by-case basis and move cases between pallets.
Further, the inter-pallet movement instruction means 13 is provided and the warehouse shelf 4
Since the pallets are automatically aggregated within the area, in addition to the above-mentioned effects, the automatic warehouse can be operated more efficiently and the burden on operators and workers can be reduced.

In this embodiment, the small carrier machines 5a, 5
d is compatible with only one row of shelves 4, and other small carrier 5
b and 5c correspond to the two rows of shelves 4. Therefore, in an automated warehouse with a relatively small number of case loading and unloading cases, small transporters 5a and 5d having a small number of four-row shelves are not provided, and small transporters move in and out and move between shelves.
You may make it correspond only by c.

Further, although the number of shelves 4 is 6 in this embodiment, the number of shelves is not limited to this in the present invention. The number of rows of shelves may be increased or decreased according to the capacity of the automated warehouse. Further, in this case, the numbers of the stacker cranes 3 and the small-sized transporters 5 are also increased or decreased according to the number of rows of the shelves 4.

[0062]

As described above in detail, according to the present invention, it is possible to provide an automatic warehouse which prevents a decrease in storage capacity even when the number of fractional pallets increases. Further, according to the present invention, it is possible to provide an automatic warehouse that prevents a decrease in work efficiency such as loading and unloading.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an automated warehouse according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a control device that controls an automatic warehouse according to an embodiment of the present invention.

FIG. 3 is a block diagram of a conventional automated warehouse.

[Explanation of symbols]

1 ... Pallet unloading table, 2 ... Pallet unloading table, 3a, 3
b, 3c ... Stacker crane, 4 ... Shelf, 5a, 5b,
5c, 5d ... Small carrier, 6 ... Case loading tray, 7 ... Case loading tray, 8 ... Control device, 11 ... Loading / unloading carrier instruction means, 12 ... Loading / unloading position designating means, 13 ... Pallet movement instruction means.

Claims (4)

[Claims] 1. A stacker crane in which a plurality of rows of shelves having a plurality of shelves are arranged, and a stacker crane arranged for every two adjacent rows of shelves is used to store at least one case of a container on a pallet in units of pallets. In an automated warehouse for loading and unloading to and from a shelf, the automated warehouse is provided with a small-sized transporter capable of loading and unloading the storage case on a shelf side opposite to the stacker crane. 2. A stacker crane in which a plurality of rows of shelves having a plurality of shelves are arranged, and at least one storage case on a pallet is arranged in pallet units by using a stacker crane arranged for every two adjacent rows of shelves. In an automated warehouse that moves in and out of shelves, a small transporter capable of loading and unloading the storage case in units of cases on the shelf side located on the opposite side of the stacker crane, and when loading and unloading the storage case, An automatic warehouse, comprising: a storage / delivery transfer selecting means for selecting a stacker crane or a small-size transporter according to a preset rule to store and store the storage case. 3. A stacker crane in which a plurality of rows of shelves having a plurality of shelves are arranged, and a stacker crane arranged for every two adjacent rows of shelves is used to store at least one case of a container on a pallet in units of pallets. In an automated warehouse that moves in and out of shelves, a small carrier that allows the accommodation case to be taken in and out in units of cases on the shelf side located on the opposite side of the stacker crane; When moving from one shelf to another shelf, a shelf designating unit that designates a source shelf and a destination shelf, and the small carrier between the shelves designated by the shelf designating unit And a control means for controlling the movement of the storage case by means of the storage case, thereby reducing the filling rate of the storage case of the movement source shelf section while increasing the filling rate of the storage case of the movement destination shelf section. Aggregation of An automated warehouse characterized by the possibility of conversion. 4. The automatic warehouse according to claim 1, wherein the small-sized carrier has a fork for loading and unloading a storage case.