Conveying equipment and goods shelf warehouse
By designing a conveying device with a drive device and a load receiving member, it is possible to drive at a specific angle to enter or exit the warehouse for particularly long goods, which solves the problem of difficult to efficiently handle particularly long goods in the prior art, and achieves efficient warehouse operation in areas with limited space.
Patent Information
- Application Number
- CN202380071561.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-09-05
- Filing Date
- 2023-09-01
- Publication Date
- 2025-05-30
AI Technical Summary
Existing warehouse equipment is difficult to efficiently enter or exit warehouse goods with particularly long lengths, especially in congested areas with limited space.
A conveying device with a drive device is designed, including at least one load receiving member, capable of traveling parallel to or along the horizontal plane at a specific angle α (different from 90 degrees and an integer multiple thereof), thereby introducing or exporting warehouse goods into or out of the warehouse space.
The efficient inlet and outflow of particularly long goods is achieved, reducing the space required around the building, especially suitable for congested areas, and able to handle heavy loads such as containers and load-loaded vehicles.
Smart Images
Figure CN120076995A_ABST
Abstract
Description
Field of the Invention
[0001] The present invention relates to a conveying device, in particular for loading warehouse goods into a warehouse space and / or for unloading them from a warehouse space. The conveying device includes a chassis with a drive device for moving the conveying device along the warehouse space in the forward and reverse directions. The movement of the conveying device is at least partially parallel to or along a horizontal plane. For replacing warehouse goods, the conveying device includes at least one load receiving member configured to introduce or discharge warehouse goods into or from one of the warehouse spaces. Additionally, the present invention relates to a rack warehouse for loading such warehouse goods. The warehouse goods are preferably single-piece goods, which are particularly provided with loading aids such as pallets and the like. Background Art
[0002] It has been found that some warehouse goods are particularly long, such that they cannot be fully automatically loaded into or unloaded from a warehouse space or a storage room with an existing warehouse area; that is, for these warehouse goods, there is a very large space requirement during handling. This is especially the case when loading containers or even entire heavy-duty trucks. Summary of the Invention
[0003] The object of the present invention is to provide a conveying device and a rack warehouse with which it is also possible to efficiently load or unload particularly long warehouse goods.
[0004] This object is achieved by a conveying device having the features of claim 1 and by a rack warehouse having the features of claim 11. Advantageous designs with convenient improvements of the present invention are given in the dependent claims.
[0005] The conveying device of the present invention includes a chassis with a drive device configured to move the conveying device along the warehouse space in the forward and reverse directions at least partially parallel to or along a horizontal plane. The conveying device further includes at least one load receiving member configured to introduce or discharge warehouse goods into or from one of the warehouse spaces. This load receiving member is configured to introduce or discharge the warehouse goods into or from one of the warehouse spaces at an angle α relative to the travel direction parallel to or along the horizontal plane, where the angle α is different from a 90-degree angle. However, preferably, the angle α is also different from any integer multiple of the 90-degree angle.
[0006] This conveying device is associated with the following advantages: It is possible to store longer goods in an existing building with a fixed preset size. Less space outside the building is also required to feed the warehouse goods, i.e., longer goods can be introduced into the building. This is particularly meaningful in congested areas where not much space or free area is available. That is, when the goods to be vertically introduced into the warehouse building are long, more space is required around the building compared to the case where the warehouse goods are introduced into the building at a "gentle" angle (corresponding to one of the basic ideas of the present invention). A smaller number of warehouse spaces can be considered.
[0007] It has been proven advantageous that the angle α is from 45 degrees to 80 degrees. Within this range, the space available in the existing warehouse building is reasonably utilized. In order to be able to store long containers (such as 40-foot containers or 20-foot containers), it has been proven preferable that the angle α corresponds to 60 degrees to 75 degrees. The angle α is preferably about 70 degrees, and this angular position relative to the traveling direction of the conveying device has thus proven to be advantageous because at this time, not only can containers but also entire heavy-duty trucks be introduced into or removed from the warehouse space.
[0008] Theoretically, the conveying device has an arbitrary cross-section in its plan view (and thus in its chassis, especially its chassis frame). The chassis frame can be formed, for example, in a rhombus or rectangle, as long as it is ensured that the warehouse goods can be introduced into or removed from one of the warehouse cells at an angle α relative to the traveling direction of the conveying device, the angle being different from a 90-degree angle and any integer multiple of a 90-degree angle. The angle α should also be an angle different from zero degrees.
[0009] Since the goods to be stored or removed are heavy load goods, it has been proven advantageous that the chassis of the conveying device includes at least four wheels and the four wheels are extended into a parallelogram different from a rectangle. With this design, the warehouse goods can be reliably introduced into or removed from the warehouse space.
[0010] It has also been proven advantageous in this process that the chassis includes a chassis frame and the chassis frame is extended into a parallelogram substantially different from a rectangle. This configuration also gives the conveying device higher stability, such that heavy loads (such as containers or entire heavy-duty trucks) can be introduced into or removed from the warehouse space in a reliable manner.
[0011] Preferably, the parallelogram also differs from a rhombus, wherein the load receiving member travels out of a stroke oriented parallel to the long side of the parallelogram during the warehousing process or the out-warehousing process. In this way, the conveying device itself also requires very little space, and longer goods can be introduced into the warehouse space or exported from the warehouse space in a particularly simple manner.
[0012] When the parallelogram also differs from a rhombus, depending on the size of the warehouse goods to be introduced, it may be advantageous for the load receiving member to travel out of a stroke oriented parallel to the short side of the parallelogram during the warehousing process or the out-warehousing process.
[0013] In order to correctly orient the warehouse goods to be introduced into the warehouse space or to be exported, it has proven to be advantageous for the load receiving member to be mounted on a rotating device that can rotate between two fixedly preset rotational positions. Preferably, the rotating device can rotate between a fixedly preset first rotational position and a second rotational position corresponding to the angle α. In the first rotational position, the warehouse goods can be transferred to the load receiving member for warehousing or in the first rotational position, the warehouse goods can be output from the load receiving member for out-warehousing. In the second rotational position, the load receiving member can introduce the warehouse goods into one of the warehouse spaces or export them from one of the warehouse spaces. There is a possibility that the rotating device can also occupy more than two fixedly preset rotational positions, which is particularly effective when not all warehouse positions are oriented parallel to each other.
[0014] In order to design the conveying device with a lower complexity, it has proven to be advantageous for the load receiving member to be non-rotatably mounted at the angle α relative to the traveling direction. In this way, the number of moving parts for the storage process is reduced, and thus the weight of the conveying device can also be minimized.
[0015] Conveniently, the conveying device includes a lifting device that can be adjusted in the lifting direction and against the lifting direction perpendicular to the traveling direction. Here, the load receiving member is preferably received by the lifting device or can be received, wherein the load receiving member is configured to introduce the warehouse goods into one of the warehouse spaces or export them from one of the warehouse spaces substantially perpendicular to the lifting direction.
[0016] The lifting device is configured to drive the load receiving member between different levels of the shelf. The shelf is particularly part of a high-rise shelf warehouse, wherein the first level of the shelf is different from the second level of the shelf. These levels are particularly arranged in a vertically offset manner from each other. These levels are oriented parallel to each other. In order to operate these different levels, the conveying device is equipped with the lifting device.
[0017] There is a possibility that the load receiver is formed as a rail vehicle, which is configured to drive into or out of the warehouse tracks of one of the warehouse spaces. In this way, the warehouse goods, such as containers or trucks, can be reliably imported into or exported from the relevant warehouse space. There is a possibility that the load receiver is formed by a plurality of such rail vehicles, each of which is used to convey a part of the warehouse goods and the rail vehicles can be adjusted synchronously with each other.
[0018] Then, the rail vehicle preferably includes (vertically) adjustable lifting elements in a manner known per se, so as to be able to lift or lower the warehouse goods (especially single-piece goods) from or to the shelf compartments. In addition, the warehouse goods can be received by or stored at the transfer station by means of the lifting elements. The lifting elements can also be used to place the warehouse goods received by the rail vehicle on the conveying device or the lifting device (lifting platform) of the conveying device and to be received again there for the storage process.
[0019] The advantages, advantageous designs and effects mentioned in connection with the conveying device of the present invention apply in the same way to the shelf warehouse of the present invention equipped with such a conveying device. The shelf warehouse includes at least one shelf, which includes a plurality of warehouse spaces, wherein the warehouse aisles at least partially extend along the shelf, and there is a conveying device formed as a shelf operating device in the warehouse aisles.
[0020] In such a shelf warehouse, due to the angular position of the shelf space, very long goods can be stored, especially when the dimensions of the available warehouse area inside or outside the building have been preset in the floor plan. In order to accommodate a plurality of warehouse goods in the shelf warehouse, the warehouse spaces are preferably arranged on different floors.
[0021] That is, in particular, it is proposed here that the warehouse spaces of the shelf are oriented at an angle relative to the traveling direction of the conveying device, and the angle is different from 90 degrees and different from an integer multiple of 90 degrees.
[0022] There is the following advantageous possibility, namely, that the storage space of the first layer is oriented at an angle with respect to the traveling direction of the conveying device, said angle being different from a 90-degree angle and different from an integer multiple of the 90-degree angle, and that the storage space of the second layer is oriented at a 90-degree angle with respect to the traveling direction of the conveying device, wherein the first layer of the shelf is different from the second layer of the shelf. Then, in order to operate these different layers, the conveying device is equipped with a lifting device. The lifting device may include a rotating device to operate the storage spaces with different orientations in the first and second layers. There is the possibility that the lifting device does not have a rotating device, but for this purpose there is a rotating device in the shelf aisle so that the conveying device as a whole rotates about a vertical line, whereby the storage spaces with different orientations can be operated.
[0023] It has been proven advantageous that the storage space is formed such that the load receiving member can be oriented flush with the storage space in order to be able to introduce or discharge the warehouse goods into or from the storage space. It is also advantageous that the load receiving member can drive into or out of these storage spaces flush; for example, the load receiving member is a rail car or a shuttle car.
[0024] In order to make rational use of the available space, there is the following advantage, namely, that in the downward direction (i.e., thus in the plan view) the storage space is substantially expanded into a parallelogram different from a rectangle.
[0025] Here, two long sides or two short sides of the parallelogram defined by the storage space are preferably oriented parallel to two long sides of the parallelogram expanded by the wheels or the chassis frame of the relevant conveying device.
[0026] In addition, the travel of the load receiving member is oriented parallel to one of two long sides or one of two short sides of the parallelogram expanded by the storage space in the top view. This is advantageous for the process of storing or discharging the warehouse goods.
[0027] There is the possibility that there is at least one transfer area that extends through at least one shelf in the shelf in order to transfer the warehouse goods to be stored to the conveying device for storage or to output the warehouse goods to be discharged from the conveying device for discharge. In this way, the conveying device can operate the shelves on both of its sides, and the transfer of the warehouse goods is carried out through one of the two shelves. The transfer area can be actuated bidirectionally here, so that the storage and discharge of the warehouse goods are both carried out via this transfer area.
[0028] However, for good flow in the rack warehouse, it is advantageous that there is only a one-way transfer area, where a first transfer area is used to transfer the warehouse goods to be stored into the conveying device for storage, and where a second transfer area is used to receive the warehouse goods to be removed from the conveying device and then output for removal.
[0029] For storing containers lifted or raised by a heavy goods vehicle, it has proven advantageous that there is a receiving area for storage on the side of the first rack facing away from the rack aisle and an output area for removal on the side of the second rack facing away from the rack aisle, where the first rack and the second rack are arranged on both sides of the rack aisle and the rack aisle is formed between the first rack and the second rack. That is, in this way, there is only the feeding of warehouse goods on one side, and only the removal of warehouse goods on the other side. If, conversely, the entire heavy goods vehicle is stored in the warehouse, it can simply be driven into the rack warehouse or its receiving area at a "gentle" angle, which is different from a 90-degree angle and different from an integer multiple of a 90-degree angle. It also drives out at an angle different from a 90-degree angle and different from an integer multiple of a 90-degree angle at the output area.
[0030] Without departing from the framework of the present invention, the features and feature combinations mentioned in the description above and the features and feature combinations mentioned in the following description of the drawings and / or shown individually in the drawings can not only be used in the correspondingly given combinations, but also in other combinations or individually. Therefore, embodiments not explicitly shown or explained in the drawings can also be considered to be included and disclosed by the present invention, but are manifested and can be produced from the described embodiments by separate combinations of features. Description of the Drawings
[0031] Other advantages, features and details of the present invention are obtained from the claims, from the following description of the preferred embodiments and with the aid of the drawings. In the drawings:
[0032] Figure 1 shows a schematic top view of a rack warehouse in the form of a high-bay rack warehouse with a conveying device, and
[0033] Figure 2 shows a schematic side view of the conveying device in the rack aisle, where the points simply shown horizontally in the figure represent the continuation of the racks, and the racks are hidden here for the sake of brevity. Detailed Description of the Invention
[0034] In Figure 1The top view of the rack warehouse 200 in the form of a high-bay rack warehouse is shown. The rack warehouse 200 includes two rows of racks 202. Each rack 202 herein includes a plurality of warehouse spaces 204 arranged on different levels. The rack aisles 206 extend along the racks 202, and in the present case, the rack aisles are formed by two rows of racks arranged at intervals from each other. In this rack aisle 206, a conveying device 100 formed as a rack operating device is shown, and the conveying device includes a chassis 102 with a drive device, and the drive device is configured to make the conveying device 100 travel in the traveling direction 104 and in the reverse traveling direction along the warehouse space 204 at least partially parallel to the horizontal plane 300 or along the horizontal plane 300.
[0035] In the present case, the racks 202 of the rack warehouse 200 are arranged in a building, and purely by way of example, the building can be reached from a street. It is not necessarily required to have a building enclosure. Instead, the racks 202 or the entire rack warehouse 200 can also be located outdoors. In order to import warehouse goods into the warehouse, the rack warehouse 200 has a receiving area 212 for inbound. A transfer area 210 is connected to this receiving area 212 so that warehouse goods (such as containers or entire trucks) can be transferred to the rack operating device in the rack aisle 206.
[0036] It can be seen that the orientation of the racks 202 is inclined relative to the rack aisle 206. Thus, a first angle that is “flatter” than 90 degrees is first required to send warehouse goods from the street, which is shown by the (upper) arrow shown in solid line. If the racks 202 are arranged perpendicular to the building enclosure, the longer warehouse goods must be sent through the oncoming lane into the rack warehouse 200, which is shown by the (upper) arrow shown in dashed line.
[0037] When the transfer area 210 can be operated bidirectionally, the inbound and outbound of warehouse goods can be carried out through the same transfer area. If, on the contrary, the transfer area 210 can be operated unidirectionally, there can be an output area 214 for outbound that is also assigned to the transfer area 210. Due to the inclined arrangement of the racks 202, the warehouse goods can also be exported “more gently” at the output area 214 (for example, making the truck drive out “more gently”), as shown by the (lower) arrow shown in solid line. If the racks 202 are not arranged at an inclined angle α, a very large radius must be traveled again when driving out, as shown by the dashed line illustration of the (lower) arrow. That is, the area required for inbound or outbound around the building of the rack warehouse 200 is limited by the inclined orientation. This is particularly advantageous in congested areas without free areas for avoidance.
[0038] Thus, in short, in the current situation, the receiving area 212 for storage exists on the side of the shelf 202 facing away from the warehouse aisle 206, and the output area 214 for retrieval exists on the side of the second shelf 202 facing away from the warehouse aisle 206. The first shelf 202 and the second shelf 202 are spaced apart from each other and in this way define the shelf aisle 206, and the conveying device 100 is located in the shelf aisle. It should be noted at this point that there may also be two or three of the said conveying devices 100 in the shelf aisle 206. In an improved embodiment, there are more than three of the said conveying devices 100 in the shelf aisle 206.
[0039] In any case, each conveying device 100 passing through the shelf aisle 206 includes a load receiving member 106, which is configured to introduce or discharge warehouse goods into or from one of the warehouse spaces 204 parallel to or along the horizontal plane 300 at an angle α relative to the traveling direction 104. The angle α different from zero is different from 90 degrees and from integer multiples of 90 degrees. In this way, it is ensured that the warehouse goods can be introduced into the shelf warehouse 200 in a "gentle" manner, and due to its angled orientation in the shelf 202, in particular, very long warehouse goods can be stored in a high-bay shelf warehouse with existing dimensions.
[0040] The angle α is approximately 70 degrees in the current situation. However, the angle is preferably in the range of 45 degrees to 80 degrees and in particular depends on the warehouse goods to be stored. The warehouse goods are preferably single-piece goods and in the current situation can be provided, for example, on a pallet, which can be introduced into the warehouse space 204. As can be seen from Figure 1 the chassis 102 includes a chassis frame 110, where the chassis frame 110 is substantially expanded into a parallelogram different from a rectangle and a rhombus. Here, the load receiving member 106 travels a stroke oriented parallel to the long side of the parallelogram in the current situation during the storage or retrieval process. The load receiving member 106 is non-rotatably mounted at an angle α relative to the traveling direction 104 in the current situation.
[0041] In Figure 2As can be seen, the chassis 102 includes at least four wheels 108, which can travel in the rack aisle 206 in a rail or trackless manner. A parallelogram that is basically different from a rectangle and a rhombus is also substantially extended between these four wheels 108. It can be seen that the conveying device further includes a lifting device 112, which can be adjusted in the lifting direction 114 perpendicular to the traveling direction 104 and in the reverse lifting direction, wherein the load receiving member 106 is received or can be received by the lifting device 112. The load receiving member 106 is configured herein to introduce or discharge warehouse goods substantially perpendicular to the lifting device 114 into or from one of the warehouse spaces 204 of the rack 202.
[0042] In the present case, the load receiving member 106 is formed such that it can drive into or out of the warehouse space 204 by itself. The load receiving member 106 can be formed, for example, as a forklift truck. However, in the present case, the load receiving member 106 formed as a rail car 116 is used. The rail car 116 is configured to drive into or out of the warehouse track 208 of the warehouse space 204. There is a possibility that a plurality of the rail cars 116 occupy space on the lifting device 112 and can also drive into or out of the warehouse track 208 synchronously. For this reason, the warehouse space 204 is also formed such that the load receiving member 106 can drive into or out of the warehouse space flush.
[0043] Similar to the design of the chassis frame 110 or the arrangement of the vehicle 108, when viewed in the downward direction (therefore in a plan view), the warehouse space 204 is also substantially formed as a parallelogram that is different from a rectangle and (in the present case) a rhombus. In this way, particularly long goods can be stored in or retrieved from the rack 202. In the present case, the two long sides of the parallelogram defined by the warehouse space 204 are oriented parallel to the two long sides of the parallelogram extended by the arrangement of the wheels 108 or the chassis frame 110. Herein, the travel of the load receiving member 106 is oriented parallel to the two long sides of the parallelogram extended by the warehouse space 204.
[0044] To move the warehouse goods into the rack warehouse 200, they are provided at the receiving area 212, which is located on the side of the first rack 202 facing away from the rack aisle 206. With the transfer area 210 located there, the warehouse goods are transferred to the load receiver 106 of the conveying device 100. Subsequently, the conveying device 100 travels along the rack aisle 206 until it reaches the position where the desired warehouse space 204 in the warehouse is located. In some cases, the lifting device 112 is actuated either simultaneously with the travel or after the travel in terms of time to occupy the correct height position for warehousing, and then the warehouse goods are introduced into the desired warehouse space 204 by means of the load receiver 106. To move the warehouse goods out of the rack warehouse 200, they are first taken out from one of the warehouse spaces 204. Then, the conveying device 100 travels along the rack aisle 206 until it reaches the position of the transfer area 210 of the conveying device that reaches the output area 214 in the warehouse. In some cases, the lifting device 112 is actuated either simultaneously with the travel or after the travel in terms of time to occupy the correct height position for the transfer area 210, and then the warehouse goods are stored in the output area 214 in the transfer area 210 by means of the load receiver 106. In the current case, the output area 214 is located on the side of the second rack 202 facing away from the warehouse aisle 206, where the first rack 202 and the second rack 202 are arranged on both sides of the rack aisle 206 and the rack aisle 206 is formed between the first rack and the second rack.
[0045] List of reference numerals
[0046] 100 Conveying device (e.g., rack operating device)
[0047] 102 Chassis
[0048] 104 Travel direction
[0049] 106 Load receiver
[0050] 108 Wheels
[0051] 110 Chassis frame
[0052] 112 Lifting device
[0053] 114 Lifting direction
[0054] 116 Rail car
[0055] 200 Rack warehouse
[0056] 202 Rack
[0057] 204 Warehouse space
[0058] 206 Rack aisle
[0059] 208 Warehouse Track
[0060] 210 Transfer Area
[0061] 212 Receiving Area
[0062] 214 Output Area
[0063] 300 Horizontal Plane
Claims
1. A conveying device (100), comprising: a chassis (102) with a drive device, the drive device being configured to move the conveying device in a travel direction (104) and in the reverse travel direction (104) along a warehouse space (204) at least partially parallel to or along a horizontal plane (300), and at least one load receiving member (106), the load receiving member being configured to introduce warehouse goods into or discharge warehouse goods from one of the warehouse spaces (204), characterized in that the load receiving member (106) is configured to introduce warehouse goods into or discharge warehouse goods from one of the warehouse spaces (204) at an angle (α) relative to the travel direction (104) parallel to or along the horizontal plane (300), the angle being different from a 90-degree angle.
2. The conveying device (100) according to claim 1, characterized in that the angle (α) is from 45 degrees to 80 degrees, preferably from 60 degrees to 75 degrees, preferably about 70 degrees.
3. The conveying device (100) according to claim 1 or 2, characterized in that the chassis (102) comprises at least four wheels (108), and the four wheels (108) extend to form a parallelogram different from a rectangle.
4. The conveying device (100) according to any one of claims 1 to 3, characterized in that the chassis (102) comprises a chassis frame (110), and the chassis frame (110) extends substantially to form a parallelogram different from a rectangle.
5. The conveying device (100) according to claim 3 or 4, characterized in that the parallelogram is different from a rhombus, and the load receiving member (106) travels out of a stroke oriented parallel to the long side of the parallelogram during the warehousing process or the outwarehousing process.
6. The conveying device (100) according to claim 3 or 4, characterized in that the parallelogram is different from a rhombus, and the load receiving member (106) travels out of a stroke oriented parallel to the short side of the parallelogram during the warehousing process or the outwarehousing process.
7. The conveying device (100) according to any one of claims 1 to 6, characterized in that the load receiving member (106) is mounted on a rotating device, the rotating device being capable of rotating between a fixed preset first rotation position and a second rotation position corresponding to the angle (α), in the first rotation position warehouse goods can be transferred to the load receiving member (106) for warehousing or in the first rotation position warehouse goods can be output by the load receiving member (106) for outwarehousing, in the second rotation position the load receiving member (106) can introduce warehouse goods into or discharge warehouse goods from one of the warehouse spaces (204).
8. The conveying device (100) according to any one of claims 1 to 6, characterized in that The load receiving member (106) is non-rotatably mounted at the angle (α) with respect to the travel direction (104).
9. The conveying device (100) according to any one of claims 1 to 8, characterized in that there is a lifting device (112) which can be adjusted in a lifting direction (114) perpendicular to the travel direction (104) and against the lifting direction, the load receiving member (106) is received or can be received by the lifting device (112), and the load receiving member (106) is configured to introduce or discharge warehouse goods substantially perpendicular to the lifting direction (114) into or from one of the warehouse spaces (204).
10. The conveying device (100) according to any one of claims 1 to 9, characterized in that the load receiving member (106) is formed as a rail vehicle (116) which is configured to drive into or out of a warehouse track (208) of one of the warehouse spaces (204).
11. A rack warehouse (200) having at least one rack (202) and at least one rack aisle (206) extending at least partially along the rack (202), the rack comprising a plurality of warehouse spaces (204), and there being at least one conveying device (100) according to any one of claims 1 to 10 formed as a rack operating device in the rack aisle.
12. The rack warehouse (200) according to claim 11, characterized in that the warehouse space (204) is formed such that the load receiving member (106) can drive into or out of the warehouse space flush.
13. The rack warehouse (200) according to claim 11 or 12, characterized in that when viewed in the falling direction, the warehouse space (204) extends substantially as a parallelogram different from a rectangle.
14. The rack warehouse (200) according to any one of claims 11 to 13, characterized in that there is at least one transfer area (210) which extends through at least one of the racks (202) to transfer warehouse goods to be stored to the conveying device (100) for storage or to output warehouse goods to be taken out from the conveying device (100) for taking out.
15. The rack warehouse (200) according to any one of claims 11 to 14, characterized in that on a side of the first rack (202) facing away from the rack aisle (206) there is a receiving area (212) for storage, and on a side of the second rack (202) facing away from the rack aisle (206) there is an output area (214) for taking out, wherein the first rack (202) and the second rack (202) are arranged on both sides of the rack aisle (206) and the rack aisle (206) is formed between the first rack and the second rack.