Vehicle arrangement for the suspended transport of a storage good

Abstract

The invention relates to a vehicle arrangement (4401) for the suspended transport of a storage good (3), comprising: a plurality of at least two single-axle transport vehicles (61) each having exactly one single travel axle, by means of which the transport vehicles can be driven and moved and which, in an operating state, interacts with the rail network (49) for this purpose; a steering device which, in an operating state, interacts with the rail network (49) in order to control a travel path on the rail network (49) using an operating principle different from the single travel axles; and a load carrier (4403) in which the storage good (3) can be received and transported. In order to be able to transport more sensitive and / or heavier storage goods, according to the invention the load carrier (4403) is or can be fixedly coupled to the at least two transport vehicles (61), and, in a ready-to-travel state on the rail network (49) in which the load carrier (4403) is coupled to the transport vehicles (61), driving dynamics of the transport vehicles (61) are synchronized with each other.

Description

[0001]VEHICLE ASSEMBLY FOR THE SUSPENDED TRANSPORT OF STORED GOODS The invention relates to a vehicle assembly for the suspended transport of stored goods according to claim 1, a device-related method according to claim 7, and a hanging goods warehouse equipped with and / or operable with the vehicle assembly according to claim 10. In automated warehouses, production facilities, and during goods transport, such as in mail order, it is necessary to pick up and unload goods from containers as automatically as possible. The goods can be stored in these containers before delivery and thus reach the station where they are packaged for onward transport to the customer. Transport within the warehouse is usually carried out via overhead conveyor systems. The containers are usually bags,which are manufactured like fabric bags and are suspended from a rail system at the top with a type of wire hanger. Such a material container is known, for example, from WO 2014 / 012965 A1. Its side wall elements are controlled via a linkage so that the side wall elements, which are connected to one another via a connecting area, can be folded open. In the area of ​​a loading station, the containers are also transferred to a horizontal or inclined position. Comparable material containers and associated overhead conveyor systems are known, for example, from DE 102004018569 A1, EP 2130968 A1, or EP 2196415 A. The transport bags described therein consist of flexible materials in the form of a loop in which the material to be conveyed is held. For loading, these transport bags are opened from above in order to be able to insert the material into the loop. Unloading occurs bythat the material to be conveyed is either removed from the side of the loop or ejected, or, for example, according to EP 2130968 A1, the loop is opened downwards. Furthermore, from DE 10354419 A1, a material carrier is known which has a relatively rigid and flat plastic wall with a cutout for loading and unloading the material to be conveyed. Other material containers are manufactured like hanging, flat plastic trays covered on one side with elastic materials, which clamps the material to be conveyed. It is known to load such material containers mechanistically and unload them manually. The transport cycle is based on the slowest process.which also depends on the quantity of transported goods. In particular, a large number of individual items of conveyed goods can slow down loading and / or unloading. For example, the unloading and / or assembly of disassembled transport containers can determine the maximum possible transport cycle. EP 2686258 B1 relates to an overhead conveyor system with a transport pocket for the automatic unloading of a loaded piece of goods and with an unloading station. The transport pocket has a horizontal base on which the piece of goods can be stored for transport purposes. The base interacts with a lifting device that is designed to raise the base of the transport pocket loaded with at least one piece of goods in a vertical direction when the transport pocket is in an unloading position, such that the at least one piece of goods can be pushed out centrally through an end face of a base body of the transport pocket by means of a pushing device.The pushing device has a slider that engages through another end face of the base body into an interior of the base body, where the at least one piece of goods is located when the base is raised. For unloading, the two opposite open end faces, the base that can be raised vertically, and the slider of the pushing device that extends through one of the end faces are required. DE 202017100206 U1 discloses a conveyor container for an overhead conveyor system for transporting conveyor goods, which container is adjustable between an open position and a closed position. The conveyor container has a base that is mechanically associated with an ejection device. By means of the ejection device, the base can be moved between a transport position, in which the conveyor goods can be stored within the conveyor goods container, and an ejection position, in which the conveyor goods can be ejected from the conveyor goods container.adjustable. DE 102018105795 A1 discloses a method for loading or unloading a conveyed good held on a flexible material of a conveyed goods container by means of a station such as an unloading station and / or a loading station of an overhead conveyor system, as well as a conveyed goods container, unloading station, and overhead conveyor system according to the method. The conveyed goods container is brought closer to the station, where an attractive force is then created between the station and the conveyed goods container to couple the flexible material of the conveyed goods container. The thus coupled conveyed goods container is tilted, and the conveyed goods are ejected from the conveyed goods container in a sliding movement. DE 102018128417 A1 describes a method for transporting and sorting a sorter pocket suspended from a roller adapter rolling on a rail network of a sorting system for transporting a piece goods,characterized by: providing the rail network of the sorting system, providing the sorting pocket's rolling adapter that rolls along the rail network, providing electrical drive energy for the rolling adapter, converting the provided electrical drive energy by means of the rolling adapter itself into kinetic energy for transporting the sorting pocket, and procedural devices. The rolling adapters serve to suspend and move the sorting pockets. For this purpose, they each have a chassis with two coaxially rotating wheels, a suspension arranged between and supported by the wheels, on which the sorting pocket is suspended,an electric drive for driving the wheels and a control device or partial control device for autonomously or at least partially autonomously controlling the rolling adapter along a path selected from a plurality of paths. WO 2020160585 A2 discloses a transport carrier and a transport carrier system for an overhead conveyor device, in which the transport carrier comprises a universally usable base body and a support body that can be exchanged via a connecting device.which, in a first configuration, is provided with a fully enclosed receiving opening for transporting transport bags and, in a second configuration, with a hanging hook for transporting goods hanging on coat hangers. The connecting device comprises a profile groove running perpendicular to the longitudinal axis and a profile extension running perpendicular to the longitudinal axis. The profile groove forms an undercut and is provided with an insertion opening at its end in the direction of its longitudinal extension. The profile extension comprises a profile web and a profile head formed on the profile web to expand the cross-section. DE 102005006455 A1 shows a transport system for hanging objects that has a transport rail,in which the holding elements are slidably guided by means of a pair of rollers. The holding elements are driven by downwardly projecting bolt-shaped carriers of the drive chain. To prevent the holding elements from inadvertently disengaging from the carriers, means are provided between the transport rail and the holding elements that prevent the projections projecting between the carriers from disengaging from the carriers at a predetermined maximum inclination of the holding element relative to the transport rail. It is therefore an object of the present invention to enable the highest possible load capacity and / or stable position during transport in a hanging goods warehouse with autonomously driving single-axle transport vehicles. The object is, in a vehicle arrangement for the suspended transport of stored goods, with a plurality of at least two single-axle transport vehicles, each having exactly one single driving axle,by means of which they are drivable and movable and which, for this purpose, cooperates with the rail network in an operating state, a steering device which, in an operating state, cooperates with the rail network to control a travel path on the rail network with an operating principle different from the respective single travel axis, wherein the steering device in particular has an actively adjustable actuating element which can be brought into sliding contact with the rail network, and a load carrier in which the stored goods can be received and transported, solved in that the load carrier is firmly coupled or can be coupled to the at least two transport vehicles, wherein in a ready-to-drive state on the rail network in which the load carrier is coupled to the transport vehicles,The driving dynamics of the transport vehicles of the vehicle arrangement are synchronized with each other. This allows sensitive and / or heavier goods to be transported. The transport vehicles preferably have wheels rotating on a common driven shaft plus the actuator, or two separately driven wheels. The wheels can be designed as traction wheels or gears. The transport vehicles can be understood as two-axis robots, with either one of the axles serving as the drive and another as the steering device, or the two separately driven wheels each combining to fulfill both tasks: traction drive and lateral dynamics control. In this application, the axles of the transport vehicle or two-axis robot can be understood as guided, independently driven links. The rail network is preferably drag-chain-free.Designed without actuators and / or carriers. Preferably, it can be provided that the transport vehicles are or can be integrated into the rail network for autonomous and self-propelled travel, and for synchronizing the driving dynamics, at least one driving state of the transport vehicles, such as starting, braking, driving straight ahead, driving in a curve, a transition from a curve to a straight ahead or vice versa, branching off at an intersection of the rail network, reversing a direction of travel, and / or leaving or entering the rail network, is or can be adapted autonomously by means of the transport vehicles. A wide variety of driving maneuvers can be performed by means of the vehicle arrangement. Preferably, it can be provided that each of the transport vehicles has its own drive, a sensor system, a communication device, and / or a control device for synchronizing the longitudinal dynamics with one another.by means of which the drive and steering device can be controlled directly or depending on the sensors. Synchronization can be achieved, in particular, without mechanical aids, i.e., by means of a data-technology or control-technology coupling. Alternatively or additionally, the transport vehicles can be supplied with power, in particular by means of current collectors that can be brought into conductive contact with the rail network and / or by means of a traveling power source to supply the control device, the sensors, the communication device, and / or the drive. This also allows autonomous travel on the rail network. Preferably, it can be provided that the load carrier, in the coupled state, is arranged below the driving axles of the transport vehicles. This allows the gravity acting on the load carrier and / or the stored goods to be utilized to stabilize the vehicle arrangement.whereby the driving dynamics of the vehicle arrangement can be improved. Preferably, it can be provided that the transport vehicles each have a coupling device by means of which the load carrier can be coupled to the transport vehicles and / or detachably coupled without causing damage, wherein the coupling device each has at least one eyelet that can be coupled to a hook of the load carrier and / or a hook that can be coupled to the hook or an eyelet of the load carrier and / or a locking device by means of which the coupling can be detachably established and / or a plug connection,by means of which the coupling can be detachably established and / or a joint for providing at least one degree of rotational freedom of the load carrier relative to the coupled transport vehicles and / or an S-shaped double hook and / or an S-shaped double hook offset by 90° and / or a spring-loaded clamp. A secure and preferably non-destructively detachable connection between the vehicle arrangement and the load carrier can be established and released again as needed. The object is also in a method for operating a vehicle arrangement with a plurality of at least two single-axle transport vehicles for the suspended transport of stored goods, wherein the transport vehicles each have exactly one single driving axle, with driving and autonomous driving of the transport vehicles by means of the single driving axle on the rail network,Controlling a travel path of the transport vehicles on the rail network by means of a steering device with an operating principle different from that of the respective single travel axle, in particular one that can be actively set. Transporting and picking up the stored goods in a load carrier by firmly coupling the load carrier to the at least two transport vehicles by means of a coupling device and synchronizing the driving dynamics of the transport vehicles in the coupled state. This allows comparatively sensitive and / or heavier stored goods to be transported. The method is carried out in particular by means of a vehicle arrangement described above, whereby the advantages described above arise. Preferably, the transport vehicles on the rail network are energized by means of current collectors and / or the transport vehicles on the rail network and the load carrier are transported on opposite sides of the travel axle.Particularly in the operating state and in the direction of gravity, energization is above and transport below the driving axis. Below the driving axis, the gravity of the load carrier and / or the stored goods has a stabilizing effect, thus positively influencing the driving dynamics of the vehicle arrangement. Furthermore, energization can be carried out in such a way that the individual, uncoupled transport vehicles can be easily removed and inserted through a free space remaining between the current-carrying layer and the traction layer. The energization enables uninterrupted operation. This task is also solved by a hanging goods warehouse, in particular a hanging bag warehouse, for storing and sorting goods that can be accommodated in hanging goods carriers, in particular hanging bags.which cooperates with a previously described vehicle arrangement for the suspended transport of one of the stored goods in a load carrier and / or is configured to carry out a previously described method. More sensitive and / or heavy stored goods can be transported. Furthermore, the previously described advantages result. The subclaims relate to further advantageous embodiments of the invention. The invention is described with reference to the accompanying drawings, in which only preferred embodiments are shown by way of example.described in more detail. It shows: Figure 1 is a schematic three-dimensional view obliquely from the side, from the top, of a preferred embodiment of a hanging goods warehouse; Figure 2 is a schematic front view of a preferred embodiment of a transport vehicle with a load carrier coupled to the transport vehicle; Figure 3 is a schematic three-dimensional view obliquely from the side, from the top, of several hanging goods carriers of a preferred embodiment, which hanging goods carriers are guided on a rail network; and Figure 4 is a schematic side view of a preferred embodiment of a hanging goods warehouse with transport vehicles of a preferred embodiment filled on a rail network, wherein a preferred embodiment of a vehicle arrangement with two synchronized transport vehicles is shown. Before the invention is described in detail, it should be noted thatthat it is not limited to the respective components of the device and the respective method steps, since these components and methods can vary. The terms used here are merely intended to describe particular embodiments and are not used in a restrictive manner. If, in addition, the singular or indefinite articles are used in the description or in the claims, this also refers to the plurality of these elements, unless the overall context clearly indicates otherwise. Figure 1 shows a schematic three-dimensional view obliquely from the side, front and top, of at least parts of a hanging goods storage system 1. The hanging goods storage system 1 can preferably be designed as a hanging bag storage system. The hanging goods storage system 1 preferably has at least two levels 9, 13, in particular a total of four levels 9, 13,1, a first level 9 and a second level 13 are provided with reference numerals by way of example. The hanging garment warehouse 1 can preferably have more than at least two levels 9, 13, for example 10 levels 9, 13 or more. Alternatively, fewer than at least two levels 9, 13 can also be provided. The at least two levels 9, 13, in particular the or all levels 9, 13, are preferably arranged vertically one above the other. This is shown by way of example in Fig. 1. The hanging garment warehouse 1 preferably has a transfer buffer 7, 11. The transfer buffer 7, 11 is preferably designed to transfer the stored goods 3 to a level 9, 13, in particular the first level 9 or the second level 13. Each of the levels 9, 13 of the hanging garment warehouse 1 preferably has a transfer buffer 7, 11. In Fig. 1, a first transfer buffer 7 and a second transfer buffer 11 are provided with reference numerals, by way of example, it being shown that per level 9, 13 there is a transfer buffer 7,11 is arranged. The hanging goods warehouse 1 preferably serves for receiving, storing, sorting and / or retrieving stored goods 3, in particular stored goods 3 accommodated in hanging goods carriers 5. Optionally as a pure warehouse or as a sorting device. The transfer buffers 7, 11 are preferably arranged vertically one above the other. This is symbolized by way of example in Fig. 1 by means of a line 27. Preferably, at least two of the transfer buffers 7, 11 can be arranged one above the other. Preferably, at least two of the transfer buffers 7, 11 can be arranged obliquely to a vertical spatial direction, in particular along the line 27. Preferably, a ring conveyor system 23, in particular a plurality of ring conveyor systems 23, runs parallel to a vertical spatial direction, in particular parallel to the imaginary line 27 along which the transfer buffers 7,11 are arranged. The ring conveyor system 23 is preferably part of the hanging goods warehouse 1. In Fig. 1, two ring conveyor systems 23 are shown as examples. Preferably, the transfer buffer 7, 11 is arranged adjacent to the ring conveyor system 23 such that the stored goods 3 or the hanging goods carriers 5 can be transferred from the transfer buffer 7, 11 into the ring conveyor system 23 and / or can be stored by the ring conveyor system 23 in the levels 9, 13, in particular the transfer buffers 7, 11 of the levels 9, 13. Preferably, the stored goods 3 are transferred directly to the ring conveyor system 23, in particular for storage in the hanging goods warehouse 1. Preferably, the stored goods 3 are located in a hanging goods carrier 5, in particular after the transferred stored goods 3 to the hanging goods carriers 5,transferred to the ring conveyor system 23. The hanging goods carrier 5 can preferably be designed as a hanging pocket. Fig. 3 shows a schematic three-dimensional view obliquely from the side above of several hanging goods carriers 5 of a preferred embodiment, which hanging goods carriers 5 are guided on a rail network 49. The hanging goods carrier 5 is shown as an example in the form of a hanging pocket. The hanging goods carrier 5 is a device for transporting stored goods 3, in particular for the hanging transport of stored goods 3. The hanging goods carrier 5 is preferably designed to receive the stored goods 3. Particularly preferably, an autonomous drive, in particular by means of a traveling electric drive, controlling and / or moving of the entire hanging goods carrier 5 takes place before provision,when providing and / or transferring the hanging goods carrier 5. The hanging goods carrier 5 preferably has a drive 4413 for autonomous driving. The method according to the invention is preferably carried out by means of electric drives, in particular without drag chains and / or carriers. The hanging goods warehouse 1 is preferably constructed at least partially or entirely without drag chains and / or carriers, preferably at least within the or all levels. The hanging goods warehouse 1 can preferably be constructed without drag chains and / or carriers only within the levels 9, 13. The hanging goods warehouse 1 preferably has a rail network 49, for example a rail network with connecting sections and branches, in particular crossings and / or switches.Preferably, the rail network 49 is designed in a grid-like manner with straight rails connected to one another by crossings and / or switches. For example, with rectangular meshes. In order to store the stored goods 3 in the hanging goods warehouse 1, the hanging goods warehouse 1 can preferably have a transfer point 53. Preferably, the individual stored goods 3 can be stored in the hanging goods warehouse 1 via the transfer point 53, in particular by means of the hanging goods carriers 5. Preferably, the individual stored goods 3 can be transferred via the transfer point 53 to the hanging goods carriers 5, in particular to individual hanging goods carriers 5.The transfer point 53 is shown as an example in Fig. 1. Preferably, only one of the stored goods 3 can be transferred per hanging goods carrier 5. If several stored goods 3 can be accommodated in the corresponding hanging goods carrier 5, several stored goods 3 can also be transferred into the hanging goods carrier 5. Preferably, the stored goods 3 can be buffered at the transfer point 53 and transferred directly to the hanging goods carrier 5. Preferably, the transfer point 53 is controlled by the hanging goods carrier 5, and preferably, following the transfer, a storage location of the hanging goods warehouse 1 can be traveled to by the hanging goods carrier 5 autonomously. Preferably, the stored goods 3 can be removed again at an unloading station 55 of the hanging goods warehouse 1, in particular from the ring conveyor system 23. The unloading station 55 is shown as an example in Fig. 1. Preferably, the hanging goods carriers 5, in particular the stored goods 3,be available at the unloading station 55 in a predetermined or predeterminable sequence 15. Preferably, a column of hanging goods carriers 5 can move into the unloading station 55 in the desired sequence 15 from the ring conveyor system 23, or can be transferred from the ring conveyor system 23 to it, unloaded there, and then return for further loading. Fig. 1 shows, as an example, the unloading station 55 with stored goods 3 in hanging goods carriers 5, which are present in a sequence 15. The unloading station 55 can preferably be arranged inside or outside one of the levels 9, 13, preferably in a lowest level. This is shown as an example in Fig. 1. Preferably, the hanging goods carriers 5 can be conveyed by means of the ring conveyor system 23 and unloaded at the unloading station 55 in the desired sequence and immediately stored empty in the hanging goods warehouse 1 by means of the ring conveyor system 23.for example, transported back to a storage area of ​​the hanging goods warehouse 1. This can prevent the respective hanging goods carriers 5 from remaining in the unloading station 55, for example, in order to continue traveling or being transported further to the transfer point 53 after unloading. Particularly preferably, the hanging goods carriers 5 are designed so that they can travel autonomously on the rail network 49. Hanging goods warehouses 1 or hanging bag warehouses with autonomously moving hanging goods carriers 5 or hanging bags are known and are described, for example, in DE 102018128417 A1, so a more detailed description is omitted here. A control device 25 is preferably provided for monitoring and controlling the hanging goods warehouse 1, in particular for specifying the desired sequence 15 and controlling the ring conveyor system 23.which exchanges information with functional units of the hanging goods warehouse 1. The control device 25 is shown as an example in Fig. 1. Figure 2 shows a schematic front view of a preferred embodiment of a transport vehicle 61 with a load carrier 4403 coupled to the transport vehicle 61, wherein in the vehicle arrangement 4401 according to the invention, due to the front view shown in Fig. 2, only one transport vehicle 61 is visible and a second transport vehicle 61 of the vehicle arrangement 4401 is concealed by the visible transport vehicle 61. Fig. 2 shows, as an example, the hanging goods carrier 5 with the transport vehicle 61, wherein the load carrier 4403 is coupled to the visible transport vehicle 61. The hanging goods carrier 5 shown in Fig. 2, in particular the transport vehicle 61,is suitable for the hanging goods warehouse 1 shown in Figure 1 and can be used in the hanging goods warehouse 1. Figure 3 shows, by way of example, a three-dimensional view of several hanging goods carriers 5 of a preferred embodiment, suspended in the rail network 49. The hanging goods carrier 5 preferably has wheels 57 for guiding on the rail network 49. The wheels 57 are preferably drivable by means of a drive 4413. In Figure 2, the wheels 57 and the drive 4413 are shown by way of example. Furthermore, in Figure 2, a drive energy is indicated by way of example by means of the reference numeral 59.wherein the drive energy from the drive 4413 is usable. Preferably, a circulating conveyor chain and / or mechanical conveying means for transmitting mechanical energy to and from the transport vehicles 61 can be provided in the energy-conducting layer. The hanging goods carriers 5 are designed to transport the stored goods 3. The hanging goods carriers 5 can preferably be designed in two parts. Preferably, the hanging goods carrier 5 can have a transport vehicle 61 and a pocket 6 that is suspended or can be suspended from the transport vehicle 61 by means of a coupling device 4419, in particular one that can be removed again without causing damage. Preferably, the pocket 6 can be a pocket that can only be coupled to a goods carrier 5, or, as is provided in the vehicle arrangement 4401 according to the invention, the load carrier 4403. Preferably, in the vehicle arrangement 4401, the pocket 6 of the load carrier 4403,which load carrier 4403 is fixedly coupled or can be coupled to the at least two transport vehicles 61. The stored goods 3 can preferably be accommodated in the pocket 6. This is shown by way of example in Figs. 2 and 3. The pocket can preferably be made of a flexible and / or foldable material. In Figure 3, a possible direction of movement of the hanging goods carriers 5 in the rail network 49 is indicated by way of example by means of a double arrow 51. The hanging goods carriers 5, in particular their transport vehicles 61, are preferably set up, programmed and / or designed for autonomous or semi-autonomous travel on the rail network 49. For this purpose, the hanging goods carriers 5, in particular the transport vehicles 61, can have their own drive 4413, preferably an electric drive, and in particular each have their own longitudinal and transverse dynamics control, for example, such as a steering device 4407.By means of the longitudinal dynamics control, preferably at least two driving states from the following group can be set: stopping and driving forward. Preferably from the group: reversing, stopping, and driving forward. Particularly preferably, different speeds and / or transient driving states can be set, in particular in combination with a longitudinal acceleration control / regulation. The longitudinal dynamics control can in particular have an electric motor as its own drive and can set at least one driving state from the group: "forward driving, reversing, stopping, accelerated forward driving, accelerated reversing driving, braked forward driving, braked reversing". The lateral dynamics control can in particular have electrically controllable steering elements and at least one driving state from the group: driving straight ahead, turning left,Turn right. A control device 4417 can preferably be provided to control the transport vehicle 61. The control device 4417 is preferably connected to the drive 4413, a sensor system 4415, and a communication device 4423 in a controlling and / or energy-transmitting operative connection. Current collectors 4421 are preferably provided to draw the energy, in particular the drive energy 59. The control device 4417 and the current collectors 4421 are shown as an example in Fig. 2. In particular, three current collectors 4421 can be provided. Preferably, a centrally arranged current collector 4421 can simultaneously be designed as an actuating element of the steering device 4407, which is mounted in a controllable manner, in particular, in the Y direction, and can be brought into engagement with a groove of the rail network 49 for lateral dynamics control. The rail network 49 can preferably be designed passively,i.e., free of control elements. By "free of control elements" it can be understood that the rail network 49 does not have any active control elements that influence the transverse dynamics of the transport vehicles 61 or hanging goods carriers 5, on which wheels or contact surfaces can be supported transversely to the direction of travel to effect a network-adjustable change of direction, as is known, for example, from classic adjustable switches. Particularly preferably, the rail network 49 is constructed horizontally or essentially horizontally. Essentially horizontal here can be understood that the transport vehicles 61 traveling on it do not roll away automatically due to gravity when stationary, and can therefore preferably be constructed without a parking brake. In this case, the drive is therefore free of gravity, i.e., not gravity-induced. Furthermore, the drive can be designed as an electric drive,wherein the longitudinal dynamics control or the drive can be carried out without drag chains, without gravity and / or without carriers. In Figure 2, the load carrier 4403 is shown by way of example with a storage item 3 accommodated in the load carrier 4403. The storage item 3 is preferably located within a U-shaped hanging material, in particular a flexible material. Loading and unloading of the load carrier 4403 can in particular take place from above or from the side. Insofar as the terms X-direction, Y-direction and Z-direction are used in this application, this can be understood as a Cartesian coordinate system traveling with the hanging goods carriers 5 or transport vehicles 61, in particular their drive, wherein the X-direction represents a direction of travel,The Y-direction can characterize a direction transverse to the direction of travel and, in a planar travel movement, horizontal direction, and the Z-direction can characterize a vertical direction perpendicular to the X-direction and the Y-direction, or vertical axis of the transport vehicle 61, or of the hanging goods carrier 5. Figure 4 shows a schematic side view of at least parts of a preferred embodiment of the hanging goods warehouse 1 with transport vehicles 61 of the preferred embodiment filled on the rail network 49, wherein a preferred embodiment of the vehicle arrangement 4401 with two synchronized transport vehicles 61 is shown by way of example. The hanging goods carriers 5, in particular the transport vehicles 61,are preferably incorporated into the rail network 49 and interact with it. The rail network 49 can preferably be fixed to a fastening layer 821. The fastening layer 821 can preferably be a part of a structure 823 accommodating the hanging goods warehouse 1, for example a ceiling. It can particularly preferably be provided that the fastening layer 821 forms or has its own supporting structure, for example by means of beams or girders to which the rail network 49 is or can be fastened. Furthermore, it can preferably be provided that the fastening layer 821 has a running supporting structure and is thus part of the rail network 49, in particular a statics of the rail network 49. The running supporting structure, in turn, can preferably be fixed to the structure 823 by means of suitable fastening means.mounted and / or firmly connected thereto. Mounting devices 827 are preferably fixed or fixable to the fastening layer 821, which can preferably serve as bearings for the further components of the rail network 49. These can be fixed or mounted on the mounting devices 827. The further components of the rail network 49 can in particular be an energy-conducting layer 807, which can be arranged in the vertical or Z-direction below the fastening layer 821. The energy-conducting layer 807 can serve to provide the drive energy 59 for the transport vehicles 61, in particular for driving and / or braking, preferably for carrying out autonomous or semi-autonomous driving maneuvers. The drive energy 59 can be in the form of mechanical energy, electrical energy,electromagnetic radiation and / or magnetic field energy for inductive transmission. It is conceivable to design the energy-carrying layer 807 and the fastening layer 821 as an integral component. Particularly preferably, the transport vehicles 61 have only schematically illustrated current collectors 4421.which, in an operating state, are in current-transmitting contact with the energy-carrying layer 807. The operating state is shown by way of example in Fig. 4. Furthermore, the mounting devices 827 and the energy-carrying layer 807 are shown by way of example in Fig. 4. The rail network 49 can preferably have a traction layer 809. The traction layer 809 can preferably be arranged in the vertical or Z direction below the energy-carrying layer 807. This is shown by way of example in Fig. 4. The traction layer 809 preferably has two traction surfaces 813 arranged parallel and spaced from one another, on which the wheels 57 of the transport vehicles 61 can roll, in particular with the transmission of a drive or braking force. The wheels 57 can particularly preferably be designed as gears, wherein the traction surfaces 813 can have a toothing, in particular not shown in detail.with which the gears 57 can mesh. The transport vehicles 61 preferably each have a head 817, the wheels 57, and a shaft 819. The shaft 819 has a width in the Y direction and a length in the X direction that preferably corresponds to a wheel diameter of the wheels 57, particularly preferably a maximum of 1.5 times the diameter. The traction surfaces 813 are preferably arranged parallel to one another at a distance. When the transport vehicles 61 are inserted, the shaft 819 is preferably arranged between the traction surfaces 813 of the traction layer 809. To facilitate the arrangement of the shaft 819 between the traction surfaces 813, the distance between the traction surfaces 813 is preferably greater than the width of the shaft 819 of the transport vehicle 61. The shaft 819 and the traction surfaces 813 preferably form a clearance fit,by means of which a transverse guidance of the transport vehicles 61 rolling on the rail network 49 can be achieved. The vehicle arrangement 4401 serves to transport at least one stored item 3. Preferably, a stored item 3 that requires particularly careful, in particular horizontal transport, preferably as free from pitching movements as possible. In order to be able to transport a stored item 3 as carefully as possible, in particular as free from pitching movements as possible, several of the single-axle transport vehicles 61 can be interconnected and jointly transport a load carrier 4403. This is shown by way of example in Fig. 4, wherein the stored items 3 are indicated by dashed lines and the vehicle arrangement 4401 has two of the transport vehicles 61. The load carrier 4403 can be designed in any desired manner,For example, they may have a rigidly designed small load carrier. However, variants with flexible walls are also possible. Furthermore, means for synchronizing the driving dynamics of the two transport vehicles 61 are preferably provided, which is indicated in Fig. 4 by a double arrow 825. Preferably, the synchronization of the driving dynamics takes place electronically and via data technology by means of the control device 4417, sensor system 4415, the drive 4413 and / or communication device 4423 of the respective transport vehicle 61. By means of synchronization, in particular, a distance between the transport vehicles 61, preferably between the driving axles 4405, can be kept constant. As a result, even during pitching movements and with a rigid load carrier 4403, only shearing can occur.wherein the load carrier 4403 as such and thus the stored goods 3 remain in a horizontal position. By means of the steering device 4407, intersections can preferably also be negotiated, wherein corresponding adjusting movements can also be synchronized. Particularly preferably, the steering device 4407 is implemented in a common component with one of the current collectors 4421, which component can be controlled and moved by means of the control device 4417. For connecting and / or coupling the load carrier 4403 to the transport vehicles 61, the transport vehicles 61 can preferably have a coupling device 4419. Preferably, each transport vehicle 61 can have a coupling device 4419. Preferably, the coupling device 4419 can be eyelet-shaped or hook-shaped. A hook-shaped coupling device 4419 is shown as an example in Fig. 4. Preferably, the charge carrier 4403, in particular each charge carrier 4403,Counterparts to the coupling devices 4419, in particular hooks or eyes, which counterparts of the load carrier 4403 can be coupled, in particular suspended, to the coupling devices 4419 of the transport vehicles 61. Preferably, two counterparts, in particular two eyes, of the load carrier 4403 can be connected to the coupling device 4419 of the transport vehicles 61, in particular to the hooks of the transport vehicles 61.can be coupled and / or hung. This allows more sensitive and / or heavier cargo 3 to be transported particularly easily. Reference symbol layout 1 Hanging goods warehouse 3 Stored goods 5 Hanging goods carrier 6 Pocket 7 First transfer buffer 9 First level 11 Second transfer buffer 13 Second level 15 Sequence 23 Ring conveyor system 25 Control device 27 Line 49 Rail network 51 Double arrow 53 Transfer point 55 Unloading station 57 Wheels 59 Drive energy 61 Transport vehicle 807 Energy-conducting layer 809 Traction layer 813 Traction surfaces 817 Head 819 Shaft 821 Fastening layer 823 Structure 825 Double arrow 827 Assembly device 4401 Vehicle arrangement 4403 Load carrier 4405 Driving axle 4407 Steering device 4409 Guideway 4411 Intersection 4413 Drive 4415 Sensors 4417 Control device 4419 Coupling device 4421 Current collector 4423 Communication device,

Claims

Patent claims1. Vehicle arrangement (4401) for the suspended transport of a stored item (3), comprising: a plurality of at least two single-axle transport vehicles (61), each having exactly one single driving axle (4405) by means of which they can be driven and moved and which, for this purpose, interacts with the rail network (49) in an operating state, a steering device (4407) which, in an operating state, interacts with the rail network (49) for controlling a travel path (4409) on the rail network (49) with an operating principle different from the respective single driving axle (4405), and a load carrier (4403) in which the stored item (3) can be received and transported, characterized in that the load carrier (4403) is fixedly coupled or can be coupled to the at least two transport vehicles (61), wherein in a ready-to-drive state on the rail network (49) in which the load carrier (4403) is coupled to the transport vehicles (61),Driving dynamics of the transport vehicles (61) are synchronized with each other.

2. Vehicle arrangement according to claim 1, characterized in that the transport vehicles (61) are or can be tracked into the rail network (49) for autonomous and self-propelled driving, and for synchronizing the driving dynamics, at least one driving state of the transport vehicles (61) from the group: - starting, - braking, - driving straight ahead, - driving in a curve, - a transition from a curve to a straight ahead or vice versa, - branching off at an intersection (4411) of the rail network (49), - reversing a direction of travel, leaving or entering the rail network (49) is or can be adapted to each other autonomously by means of the transport vehicles (61).

3. Vehicle arrangement according to claim 1 or 2, characterized in that each of the transport vehicles (61) has its own drive (4413), a sensor system (4415), a communication device (4423), and / or a control device (4417) for synchronizing the longitudinal dynamics with one another, by means of which the drive (4413) and the steering device can be controlled directly or as a function of the sensor system (4415).

4. Vehicle arrangement according to one of claims 1 to 3, characterized in that the transport vehicles (61) can be supplied with power, in particular by means of current collectors that can be brought into current-conducting contact with the rail network (41) and / or by means of a traveling power source, for supplying the control device (4417), the sensor system (4415), the communication device (4423), and / or the drive (4413). 5.Vehicle arrangement according to one of claims 1 to 4, characterized in that the load carrier (4403) is arranged in the coupled state below the driving axles (4405) of the transport vehicles (61).Vehicle arrangement according to one of claims 1 to 5, characterized in that the transport vehicles (61) each have a coupling device (4419) by means of which the load carrier (4403) can be coupled to the transport vehicles (61) and / or can be detachably coupled without destruction, wherein the coupling device (4419) each has at least one element from the following group: - an eyelet which can be coupled to a hook of the load carrier (4403), - a hook which can be coupled to the hook or an eyelet of the load carrier (4403), - a locking device by means of which the coupling can be detachably established, - a plug connection by means of which the coupling can be detachably established, - a joint for providing at least one rotational degree of freedom of the load carrier with respect to the coupled transport vehicles, - an S-shaped double hook, - an S-shaped Double hook,. - a spring-loaded clamp. 7.Method for operating a vehicle arrangement (4401), in particular a vehicle arrangement according to one of claims 1 to 6, with a plurality of at least two single-axle transport vehicles (61) for the suspended transport of a stored item (3), wherein the transport vehicles (61) each have exactly a single driving axle (4405), comprising: driving and autonomously driving the transport vehicles (61) by means of the single driving axle on the rail network (49), controlling a travel path of the transport vehicles (61) on the rail network (49) by means of a steering device with an operating principle different from the respective single driving axle, and transporting and receiving the stored item (3) in a load carrier (4403), characterized by firmly coupling the load carrier (4403) to the at least two transport vehicles (61) by means of a coupling device (4419), and synchronizing the driving dynamics of the transport vehicles (61) in the coupled state. 8.Method according to claim 7, characterized by: supplying power to the transport vehicles (61) on the rail network (49) by means of current collectors (4421).

9. Method according to claim 7 or 8, characterized by: supplying power to the transport vehicles (61) on the rail network (49) and transporting the load carrier (4403) on opposite sides of the travel axis (4405), in particular when viewed in the operating state and in the orientation of gravity, supplying power above and transporting below the travel axis (4405).

10. Hanging goods warehouse (1), in particular hanging bag warehouse, for storing and sorting goods (3) that can be received in hanging goods carriers (5), in particular hanging bags, which cooperates with a vehicle arrangement according to one of claims 1 to 6 for the hanging transport of one of the goods (3) in a load carrier (4403). and / or is arranged to carry out a method according to one of claims 7 to 9.

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