Elevator system having a linear drive and a plurality of primary sub-sections

Abstract

The invention relates to an elevator system (1.1, 1.2, 1.3), in particular for transporting goods to be transported, having an elevator shaft (2) with at least one first primary sub-section (3.1) of a linear drive, said first primary sub-section running in the elevator shaft (2), and a second primary sub-section (3.2) of the linear drive, said second primary sub-section running in the elevator shaft (2) parallel to the first primary sub-section (3.1), and a first carriage (6.1) which is movably arranged on the first primary sub-section (3.1) and has a first secondary part (17) of the linear drive arranged thereon, and a second carriage (6.1) which is movably arranged on the second primary sub-section (3.2) and has a second secondary part (17) of the linear drive arranged thereon, wherein the first carriage (6.1) and the second carriage (6.2) are designed to jointly receive an elevator car (5.2, 6.4) or a container (6.7), and are configured to be moved along the respective primary sub-sections (3.1, 3.2) in a manner coupled to one another, and wherein the first carriage (6.1) and the second carriage (6.2) are configured to be moved along the respective primary sub-sections (3.1, 3.2) independently of one another.

Description

[0001] Elevator system with linear drive and multiple primary sections

[0002] Technical area

[0003] The following statements relate to an elevator system, in particular for transporting persons and / or goods, comprising an elevator shaft with at least one first primary sub-string of a linear drive running in the elevator shaft and a second primary sub-string of the linear drive running parallel to the first primary sub-string in the elevator shaft, and a first carriage arranged to be movable on the first primary sub-string with a first secondary part of the linear drive arranged thereon and a second carriage arranged to be movable on the second primary sub-string with a second secondary part of the linear drive arranged thereon.

[0004] Furthermore, the following statements relate to a method for operating such an elevator system.

[0005] Technical background

[0006] Elevator systems for transporting people and / or goods are an integral part of modern residential and commercial buildings. A typical elevator system comprises one or more elevator shafts, each of which houses one or more elevator cars that are moved between landing positions by means of drives.

[0007] In such elevator systems, it is already known to use linear drives which are formed from a primary section on the elevator shaft side and a secondary section on the car side, wherein the car is driven by a moving magnetic field acting between the primary section and the secondary section. Such an elevator system is known, for example, from EP 3 959 164 A1 and offers, among other advantages, that the elevator cars can be moved between vertical primary section strands and horizontal primary section strands and that the height of the elevator system is not limited, as is the case with a conventional elevator system with a suspension drive. A disadvantage, however, is that the load-bearing capacity of an individual car, which is determined, among other things, by the overlap area between the primary section and the secondary section, is structurally limited, particularly since it would be almost impossible to move an excessively long secondary section between the vertical and horizontal primary section strands.Consequently, the load that can be transported in such a car is also limited.

[0008] EP 3 286 122 B1 discloses an elevator system in which a car has a multi-part secondary part of a linear drive, with each part of the secondary part interacting with a parallel pulley of a multi-pull primary part of the linear drive in the elevator shaft. The linear motor can then also be used to guide the car.

[0009] Description - Technical solution

[0010] Based on this situation, the current task is to increase the possible load capacity of elevator systems with linear drives.

[0011] The present object is achieved by the features of the independent claims. Advantageous embodiments are specified in the subclaims, the description, and the drawings. Where technically feasible, the teachings of the subclaims may be combined arbitrarily with the teachings of the main and subclaims.

[0012] In particular, the object is accordingly achieved by an elevator system, in particular for transporting persons and / or goods, comprising an elevator shaft with at least one first primary sub-strand of a linear drive running in the elevator shaft and a second primary sub-strand of the linear drive running parallel to the first primary sub-strand in the elevator shaft and a first carriage arranged to be movable on the first primary sub-strand with a first secondary part of the linear drive arranged thereon and a second carriage arranged to be movable on the second primary sub-strand with a second secondary part of the linear drive arranged thereon,The first carriage and the second carriage, on the one hand, are designed to jointly accommodate a lift car or a container and are configured for mutually coupled movement along the respective primary sub-lines, and the first carriage and the second carriage, on the other hand, are configured for mutually independent movement along the respective primary sub-lines. Advantageous aspects are explained below, and preferred modified embodiments are described further below. Explanations, in particular regarding advantages and definitions of features, are essentially descriptive and preferred, but not limiting, examples. If an explanation is limiting, this will be expressly stated.

[0013] Where ordinal numbers, such as "first", "second", etc., are used, for example to designate a component, an element, a method step, or a method action, these ordinal numbers are intended purely for differentiation in the designation and do not indicate any dependencies or sequences. This means, in particular, that, for example, a device does not have to have a "first component" in order to have a "second component." A device can also have a "first component" and a "third component" without necessarily having a "second component." Multiple units of the same ordinal number can also be provided, for example, multiple "first components."

[0014] As understood herein, an elevator system is configured, for example, with at least one vertical and / or horizontal elevator shaft for at least one car, but may also comprise multiple elevator shafts, in particular for multiple cars per elevator shaft. In the presently described elevator system with a linear drive, a car is preferably formed by one or more carriages with a car cabin or container mounted thereon, and is held and driven by the linear drive. In particular, the carriage is guided on at least one guide rail, for example by means of guide rollers rolling along a guide surface of the guide rail. In a car cabin, a carriage may be configured separately from the car cabin or, alternatively, integrated with the car cabin.

[0015] A linear drive in an elevator system, for example, is formed by a primary part extending into the elevator shaft and forming tracks for carriages, and a secondary part located on each carriage. The primary part is formed by coils arranged one behind the other, each associated with a converter. The converter energizes the coil to generate a magnetic field when the carriage is in the area of ​​the respective coil. The magnetic field is generated by moving along the coils in such a way that the carriage is attracted or repelled by the magnetic field according to its intended travel path along the primary part.A primary part can also be designed with several parallel trains of such coils arranged one behind the other, with each carriage then having a correspondingly multi-part secondary part that acts on the multiple trains simultaneously, for example to achieve a specific force distribution or mechanical equilibrium. A primary part is understood to be the totality of the trains that are assigned to a carriage in its entirety and along which the carriage can travel in its entirety. The secondary part is formed, for example, by a permanent magnet or electromagnet that interacts with the magnetic fields of the coil. In a primary part with multiple trains, the secondary part can in turn be multi-part and have a magnetic component for each train of the primary part.

[0016] A section of the primary section, each of which defines a lane and forms a straight line within itself, is referred to as a primary section line, whereby several, for example, vertical and horizontal primary section lines together form the primary section and can form a network of different travel routes. In particular, the primary section can form one or more circumferentially navigable and / or arbitrarily branched travel routes, whereby the car can be transferred by transfer units between primary section lines in different directions.

[0017] An elevator shaft is a continuous shaft that extends over several floors and / or along several areas of a building and has a cross-section designed for the passage of the elevator car. An elevator shaft of the elevator system can extend in a vertical and / or horizontal direction. In one embodiment, the elevator system has at least one partial section of the elevator shaft in which the shaft extends vertically and at least one partial section in which the elevator shaft extends horizontally, wherein the elevator car can move from the vertically extending section into the horizontally extending section. For this purpose, a transfer unit, for example in the form of a turntable, can be provided between a primary sub-section of the horizontally extending section and a primary sub-section of the vertically extending section.Such a transfer unit can also be provided at any other location within the elevator shaft, for example at a corner point of a circumferential travel path formed in an elevator shaft section and consisting of two parallel vertical primary part strands and two horizontal primary part strands connecting the vertical primary part strands.

[0018] A carriage is designed in particular as a so-called backpack carriage, on which the secondary part is arranged at the rear and a holder for the elevator car or the container, for example in the manner of a fork holder, at the front. Means for establishing a fastening between the carriage and the elevator car or container, in particular a detachable fastening, are preferably provided on the carriage or on a elevator car or a container. A carriage is understood to be a unit which, in turn, is intended to accommodate an entire elevator car or an entire container, in each case with the dimensions corresponding to a carriage. The carriage is therefore a unit which can be moved autonomously on the primary part(s) and which, with regard to guidance and mechanical stability, is determined entirely by the interaction of its secondary part with the primary part(s).

[0019] A car cabin is designed as a cabin mounted on the carriage(s) with at least one car door formed thereon, wherein the car door is designed to interact with shaft doors at landing positions of the elevator shaft, so that a passage can be created between the car cabin located on the carriage and the building at the landing positions. The respective car cabin therefore remains on the carriage during operation and is loaded and unloaded with transported goods and is entered and exited by people. A container is a body of a defined shape with an interior for accommodating transported goods, which is picked up as a whole on the respective carriage and removed as a whole from the respective carriage without any access to the interior of the container being provided during this process. A container can, for example, be a standardized lightweight container known from aviation.

[0020] Insofar as a load capacity is mentioned here, the load capacity includes the total weight carried by one or more carriages, i.e., the weight of all car components, in particular the carriage(s) and the car cabin or container, as well as the payload in the car or container. The objective of increasing the load capacity of such an elevator system is, in particular, indirectly aimed at increasing the possible payload and thus the weight of goods that can be transported on a single trip or the number of people that can be transported on a single trip.

[0021] The solution to the problem with the elevator system described above now includes the technical teaching that several carriages, which can also individually form a car with a respective car cabin, can form a common car with a car cabin or a container by synchronizing the carriages and correspondingly designing the receptacles on the respective carriages for the common accommodation of the car cabin or container. The load capacity of the car is determined by adding the load capacities of the individual carriages, without changing the structural dimensions of an individual carriage and the secondary part provided on it.The secondary part can be designed to be compact and, within its structural limitations, solely to accommodate a single elevator car with a certain standard load capacity, as in known elevator systems with linear drives, while still achieving a significantly increased load capacity for a car supported simultaneously on multiple carriages or a container supported simultaneously on multiple carriages. In particular, the car formed with multiple carriages can have a lower deadweight than the combined weight of two cars each formed with individual carriages, since, for example, only a single component needs to be provided and / or the space-to-wall ratio of the car or container can be advantageously improved.Accordingly, in addition to the sum of the load capacities, a possible payload can be achieved that exceeds the sum of the possible payloads of two corresponding elevator cars, each equipped with individual carriages. The elevator system then enables the transport of heavy and / or large goods over horizontal and vertical travel paths and with unlimited travel heights or elevator shaft lengths, while also advantageously allowing the use of the individual primary sections for elevator cars with individual carriages.

[0022] The teaching described above can be expanded as desired. Accordingly, for example, a third carriage, a fourth carriage, etc. can be designed with the first carriage and the second carriage to jointly accommodate the elevator car or the container and can be configured for coupled movement along the respective primary section lines. For example, the number of carriages corresponds to the number of parallel primary section lines in an elevator shaft (section) in an elevator system, so that the elevator system is fully utilized to maximize the possible load. Different sizes of elevator cars and / or containers can also be provided in an elevator system, so that, for example, two carriages can be combined and used together with a first container, and three carriages can be combined and used together with a second container.

[0023] Alternatively or additionally, the first carriage and the second carriage can each be individually designed to accommodate a lift car. A single lift car can then be accommodated on each carriage, for example, for normal operation for the priority transport of people, whereby the lift car thus formed can be moved independently of other carriages / cars. In this way, each carriage can be used for various purposes and thus particularly efficiently.

[0024] Alternatively or additionally, it can be provided that the elevator system further comprises a control device for controlling the linear drive, wherein the first carriage and the second carriage can be coupled to one another on the control side by means of the control device. The coils of the first primary sub-string and the second primary sub-string are then energized synchronously or in parallel to move the two carriages in order to generate a synchronous movement of the carriages. Advantageously, this type of coupling does not require any structural changes to the carriages or other components of the elevator system for coupling the first carriage and the second carriage. Furthermore, the coupling can be easily established and released again by means of the control device.

[0025] Alternatively or additionally, it can be provided that the first carriage and the second carriage can be detachably mechanically coupled to one another. This creates a physical connection between the carriages so that they cannot be moved out of the positional relationship defined by the mechanical coupling. In the simplest case, the coupling is established via the lift car or the container, whereby the first carriage and the second carriage are both mechanically coupled to the lift car or the container. However, a coupling can also be established by coupling means independent of the lift car or the container. Due to the detachable design of the coupling, the carriages can be used to individually accommodate a lift car or a container when they are not currently accommodating a common lift car or container, for which purpose the coupling is released.

[0026] Alternatively or additionally, the first primary section can be arranged on a first wall of the elevator shaft, and the second primary section can be arranged on a second wall of the elevator shaft opposite the first wall. This achieves a two-sided support for the elevator car or container, significantly reducing the moment load of each carriage that must be absorbed between the respective secondary section and the respective primary section compared to a one-sided support, thus increasing the potential load-bearing capacity.

[0027] Alternatively or additionally, the elevator system may further comprise a car cabin mounted on the first carriage and the second carriage. The car cabin can then be used to accommodate transported goods and / or persons in the interior and can be freely and freely loaded through at least one car door.

[0028] Alternatively or additionally, it can be provided that the elevator shaft has at least one first shaft door on a third wall and / or on a fourth wall, wherein the elevator car has a car door corresponding to the first shaft door. The shaft door and the elevator car door are therefore provided on a wall on which no primary sub-string is arranged. For example, a third wall or a fourth wall can be arranged opposite a first wall on which both the first primary sub-string and the second primary sub-string are arranged, such that the primary sub-strings on this first wall can be connected to any desired further primary sub-strings to form travel paths. Insofar as the first primary sub-string and the second primary sub-string are formed on opposite walls, the third wall or the fourth wall is each arranged perpendicular thereto.In particular, a shaft door can be provided on the third wall and a shaft door on the fourth wall, with corresponding car doors being arranged on the elevator car, so that the elevator car is accessible from different sides, for example, from different landing positions from different sides. The third wall and the fourth wall are located opposite each other, in particular.

[0029] Alternatively or additionally, it can be provided that the first primary sub-string and the second primary sub-string have mutually adjacent transfer units for simultaneously changing a drive direction of the first carriage and the second carriage, in particular between a vertical drive direction and a horizontal drive direction. The advantage made possible by linear drives of both horizontally possible transport and vertically possible transport can then be used for the elevator car or container jointly mounted on the first carriage and the second carriage. In particular, the carriages can be transferred by the transfer units in parallel from the first primary sub-string and the second primary sub-string to a further common primary sub-string running perpendicular thereto, insofar as the first primary sub-string and the second primary sub-string are arranged on the same wall of the elevator shaft.The further primary section extends in alignment with the slides and can therefore be used by both slides at the same time.

[0030] Alternatively or additionally, it can be provided that the elevator system further comprises at least one loading device for loading a container and / or a lift car onto or from the first carriage and second carriage. The loading device comprises, in particular, shaft doors or shaft openings sufficiently dimensioned for a container to pass through. The loading device is particularly preferably designed for pushing the container or the lift car horizontally onto the first carriage and / or the second carriage and / or for pushing the container or the lift car horizontally down from the first carriage and / or the second carriage. The container or the lift car can be supported for displacement, for example, on rollers or in a sliding manner. For example, means such as rollers or sliding supports for moving the container or the lift car horizontally are provided on the loading device.the car cabin is provided or such means are attached to the container or the.

[0031] Elevator car is provided. The loading device is designed, for example, in such a way that the receptacles of the carriages form a plane with guide surfaces for loading and unloading the container or the elevator car, so that the container or the elevator car can be moved evenly between the receptacles and guide surfaces. Alternatively and furthermore, for example, the receptacles can be positioned slightly below a guide surface during displacement and can be moved towards the container or the elevator car before or after displacement. A loading device can, for example, be provided on a ground floor and / or in one or more target floors of a building that are relevant for building logistics. In particular, a loading device can be provided for firstly unloading one or more elevator cars from one or more carriages and then loading a container onto the multiple carriages.This process can also be carried out on two different charging devices one after the other.

[0032] Alternatively or additionally, the elevator system may further comprise at least one support element that can be inserted into the travel path of the car cabin or container for supporting the car cabin or container. The support element is designed, for example, to be retractable, pivotable, or insertable into the travel path. The support element can then be positioned to relieve the load on the linear drive when stationary, for example during loading or unloading at a landing position, in order to temporarily interrupt the power supply to the primary part to save energy. The support element can also be positioned to park the car cabin or container in a storage or maintenance position.The first carriage and the second carriage can then be used for other purposes, for example to individually pick up lift cabins or containers, while the previously picked up car cabin or container is placed on the support element(s).

[0033] Alternatively or additionally, it can be provided that the elevator system further comprises at least one guide rail running parallel to the primary part strands for guiding the elevator car or the container along the primary part strands, wherein the number of guide rails is fewer than the number of primary part strands. For example, guide means, in particular guide rollers, are provided on the elevator car or the container, which roll on a guide surface of the guide rail(s) in order to determine a defined positioning of the secondary parts of the carriages relative to the primary part strands. Such guide means can also be arranged on one of the carriages. Advantageously, in the case of a jointly accommodated elevator car or container, the positioning between the secondary part and the primary part strand can be determined on several carriages simultaneously by means of a guide, so that unlike when elevator cars or containers are accommodated individually,For containers, a guide rail must be provided on each carriage or primary section. This advantageously creates an elevator system with fewer components overall.

[0034] Alternatively or additionally, it can be provided that the elevator shaft has at least one parking position, in particular in a shaft head or in a shaft pit. The parking position can be intended to park a car and / or a container there, while one or more carriages assigned to the car or the container are used elsewhere in the elevator shaft. Alternatively or additionally, the parking position can be provided for an entire elevator car to be parked there. Advantageously, a car with a car or container jointly held on several carriages can then be used to transport heavy goods, for example outside of the building's peak usage times, and parked in the parking position in order to use the elevator system for passenger transport, for example during peak usage times, with cars each comprising only one carriage.For passenger transport, the primary sections can then be used, for example, for travel routes that allow for dynamic, rapid passenger transport with a large number of cars, while providing a particularly high load capacity for the transport of goods. Furthermore, a parking position can also be used to temporarily park a car to avoid another car. The parking position(s) are also particularly useful for parking individual car cabins mounted on carriages or cars comprising only one carriage.

[0035] Alternatively or additionally, it can be provided that the elevator system further comprises a further carriage with a car cabin mounted solely thereon, wherein the further carriage is arranged such that it can move on the first primary section line and / or the second primary section line and, in particular, is arranged such that it can move between the first primary section line and the second primary section line via transfer units. The first primary section line and the second primary section line are then used simultaneously to move a car having two or more carriages with an increased load capacity for transporting heavy goods and at least one car having only one carriage for dynamic and rapid passenger transport. Insofar as a car with several carriages uses several primary sections lines simultaneously, the primary section forms fewer travel paths for this car than for a car with only one carriage.A car with multiple carriages can therefore only be moved where the primary section forms corresponding primary section lines. In the elevator system, cars with different numbers of carriages can therefore be used simultaneously, with appropriate travel paths and / or parking positions being provided to enable the cars to operate in parallel as efficiently as possible.

[0036] The object is further achieved by a method for operating a previously described elevator system, wherein the first carriage and the second carriage, in a first operating mode, jointly accommodate a car or a container and are moved coupled to one another on the first primary sub-chain and the second primary sub-chain. The method achieves the advantages described above with regard to the elevator system in a corresponding manner. In particular, by coupling the at least two carriages, a car with a significantly increased load-bearing capacity or a significantly increased maximum payload can be provided. The advantages achieved by means of the linear drive, namely a variable transport direction and an unlimited extension of the travel path(s), are then achieved by the method for transporting particularly heavy and / or particularly large goods.

[0037] Alternatively or additionally, it can be provided that an additional carriage is moved along the first primary section and / or the second primary section in the first operating mode. The elevator system can then be used in a particularly diverse and variable manner, in particular for the transport of heavy and / or large goods on the one hand, and for dynamic passenger transport on the other.

[0038] Alternatively or additionally, it can be provided that at least one of the first carriage and the second carriage picks up a lift car or a container on its own in a second operating mode and is moved on the first primary sub-string and / or on the second primary sub-string independently of the other of the first carriage and the second carriage. The lift car or the container is then removed from the first carriage and the second carriage and parked, for example, in a parking position, while the first carriage and / or the second carriage can be used to pick up lift cars or containers individually. In particular, the first operating mode is provided outside of a building's peak usage time, for example at night, when capacity utilization due to passenger transport is low.During this time, the elevator system's available capacity can be used to transport heavy and / or large loads in the first operating mode. During peak usage, such as during daytime rush hour, the elevator system can then be operated in the second operating mode to enable the fastest, most dynamic passenger transport possible with the shortest possible waiting times for passengers.

[0039] Short description of the drawings

[0040] A preferred technical solution is explained in more detail below with reference to the accompanying drawings using preferred embodiments. The term "figure" is abbreviated to "Fig." in the drawings.

[0041] The drawings show

[0042] Fig. 1 is a schematic representation of an elevator system in a first embodiment;

[0043] Fig. 2 is a schematic representation of an elevator system in a second embodiment;

[0044] Fig. 3 is a side view of a car in an elevator system such as that shown in Fig. 1 or Fig. 2; and

[0045] Fig. 4 is a schematic plan view of a car in an elevator system in a further embodiment.

[0046] Detailed description of the drawings

[0047] The described embodiments are merely examples that can be modified and / or supplemented in a variety of ways within the scope of the claims. Each feature described for a specific embodiment can be used independently or in combination with other features in any other embodiment. Each feature described for an embodiment of a specific claim category can also be used correspondingly in an embodiment of a different claim category.

[0048] Figure 1 shows a first embodiment of an elevator installation 1.1 with an elevator shaft 2 extending in a vertical direction V. In the elevator shaft 2, a primary part 3 of a linear drive, comprising a vertical first primary part line 3.1, a vertical second primary part line 3.2, and horizontal primary part lines 3.7, 3.8, on which elevator cars 5, 6 are movably arranged, is arranged on a first wall 2.1. Furthermore, shaft doors 8 are arranged in the elevator shaft 2 in several landing positions 7.1, 7.2, 7.3, 7.4 on a third wall 2.3 and on a fourth wall 2.4 opposite the third wall 2.3.

[0049] The elevator cars 5 are configured as individual cars, each with a carriage 5.1 and a car cabin 5.2 mounted thereon (shown in more detail in Figure 3), and have car doors 5.3 facing a second wall 2.2 (not shown) of the elevator shaft 2, in order to form access to the car cabin 5.2 with the shaft doors there. The elevator cars 5 can move along all primary section lines 3.1, 3.2, 3.7, 3.8 and are transferred in particular between vertical primary section lines 3.1, 3.2 and horizontal primary section lines 3.7, 3.8 by means of transfer units 10. In particular, the elevator cars 5 can move along the primary section 3 in a circulating operation according to a paternoster principle, for which purpose a further horizontal primary section line and further transfer units 8 can be arranged in the landing position 7.1.

[0050] The elevator car 6 is configured with two carriages 6.1, 6.2, the first carriage 6.1 being arranged for movement on the first primary section 3.1 and the second carriage 6.2 being arranged for movement on the second primary section 3.2. The first carriage 6.1 and the second carriage 6.2 together accommodate a car cabin 6.4 (shown in more detail in Figure 3), which extends across the entire width of the elevator shaft 2 and has car doors 6.5, 6.6 at the ends associated with the third wall 2.3 and the fourth wall 2.4. The elevator installation 1 further comprises a control device 11, shown merely by way of example outside the elevator shaft 2, which is designed and configured to control the elevator installation 1, in particular to supply power to the primary section 3 via converters (not shown). The control device 11 is designed to couple the carriages 6.1, 6.2 to one another, i.e. synchronously with one another, along the primary part strands 3.1, 3.2 in order to move the elevator car 6 in the elevator shaft 2. The elevator car 6 thus has a significantly greater load capacity than the elevator cars 5, with the maximum load of the elevator car 6 exceeding the sum of the maximum loads of the elevator cars 5. The elevator car 6 is thus particularly suitable for transporting heavy and / or large cargo.

[0051] Furthermore, in the elevator shaft 2, parking positions 12.1, 12.2 are provided in a shaft head 2.5 and a shaft pit 2.6. These parking positions are located above and below the respective last landing positions 7.1, 7.4 and serve to accommodate one or more elevator cars 5, 6. For example, outside of a building's peak usage period, the elevator cars 5 are parked in parking position 12.1 in order to transport heavy goods with the elevator car 6 in a first operating mode. Furthermore, for example, during the building's peak usage period, the elevator car 6 is parked in parking position 12.2 in order to use the elevator cars 5 in a second operating mode for passenger transport, for example, in a previously described circulating operation.

[0052] In the elevator shaft 2, mounting elements 13 are also arranged—purely by way of example in the third landing position 7.3 and also shown highly schematically—which are intended to be inserted beneath the elevator car 5, 6, in particular beneath the elevator car 5.2, 6.4, when the elevator car 5, 6 is in the third landing position 7.3, in order to support the weight of the elevator car 5, 6 or the elevator car 5.2, 6.4 and thus relieve the load on the linear drive. The power supply to the primary part 3 at the corresponding location(s) can then be temporarily interrupted to save energy. The support elements 13 are, for example, pivoted or moved into the travel paths of the elevator cars 5, 6 along the primary section lines 3.1, 3.2, 3.7, 3.8 and are otherwise located outside the travel paths in order not to hinder the passage of the elevator cars 5, 6.

[0053] In the elevator system 1.1, a car 5.2, 6.4 can be removed from the carriage 5.1 or the carriages 6.1, 6.2 in a manner not initially shown in detail, so that the carriages 5.1, 6.1, 6.2 can be used either individually on the corresponding elevator cars 5 or jointly on the corresponding elevator cars 6. The elevator system 1.1 can therefore be operated in various configurations, of which Figure 1 shows only one possible configuration.

[0054] Figure 2 shows another embodiment of an elevator system 1.2, which is similar to elevator system 1.1 in some aspects not described again. Arranged in the elevator shaft 2 are three parallel primary sections 3.1, 3.2, 3.3, each of which has carriages 6.1, 6.2, 6.3 arranged for movement for the possible joint accommodation of containers 6.7 or for the individual accommodation of a car 5.2. For example, a container can be dimensioned for all three carriages 6.1, 6.2, 6.3 or just for two carriages 6.1, 6.2, 6.3. The containers 6.7 are designed to be pushed onto the carriages 6.1, 6.2, 6.3 at landing positions 7.1, 7.2 or pushed down from the carriages 6.1, 6.2, 6.3 and do not have a car door 6.5, 6.6. For pushing up or down, loading devices 14 are arranged in the landing positions 7.1, 7.2. These loading devices are formed, among other things, by rollers 14.1, 14.2, 14.3, 14.4 and along which a respective container 6 can be moved.7 loaded onto the carriages 6.1, 6.2, 6.3 or from the carriages 6.1,.

[0055] 6.2, 6.3 can be unloaded. In a corresponding manner, the

[0056] Lift car 5.2 can be loaded and unloaded from a single carriage 6.1, 6.2, 6.3, for example to use the respective carriage 6.1, 6.2, 6.3 for dynamic passenger transport with the lift car 5.2 when the carriage 6.1, 6.2, 6.3 is not used for a container 6.7, or to release the carriage 6.1, 6.2, 6.3 when the carriage 6.1, 6.2, 6.3 is used for a container 6.7. Furthermore, the lift system 1.2 is provided with parking positions 12.1, 12.2, where cars 5, 6 or car cabins 5.2 of the containers 6.7 can be parked to allow other cars 5, 6 or carriages 6.1, 6.2, 6.3 access to individual landing positions 7.1,

[0057] 7.2, 7.3 to enable.

[0058] In landing position 7.3, for example, a horizontal primary section line 3.7 with transfer units 10 is arranged so that the elevator car 6 can be moved out of the elevator shaft 2 as a whole, i.e., including the carriages 6.1, 6.2, 6.3. In landing position 7.3, support elements 13 are also arranged, which, after the elevator car 6 has come to a standstill, can be moved up to the elevator car 6, in particular to the container 6.7, in order to support its weight and relieve the linear drive. Furthermore, guide rails 15.1, 15.2 are arranged in the elevator shaft 2 of the elevator system 1.2. These guide rails run between the primary sections 3.1, 3.2, 3.3 and guide the elevator cars 5, 6. Only two guide rails 15.1, 15.2 are provided to align the secondary sections of three carriages 6.1, 6.2, 6.3 relative to the respective primary section strands 3.1, 3.2, 3.3. One guide rail is also provided on a single carriage 6.1, 6.2, 6.The elevator car 5.2 accommodated in the elevator car 3 can be guided along one of the guide rails 15.1, 15.2. The carriages 6.1, 6.2, 6.3 can also be releasably coupled to one another mechanically by a mechanical coupling 16, in addition to the "virtual" coupling by the control device 11.

[0059] Figure 3 shows a detailed side view of a car 6 according to Figure 1, held by the primary part 3. The car 6 has a secondary part 17 on the fork-shaped carriage 6.2 (as well as on other carriages 6.1, 6.3), which interacts with coils 18 of the primary part 3 and is moved by a magnetic field traveling along the primary part 3. For example, converters (not shown) are assigned to the coils 18. The primary part 3 is also held to the wall 2.1 of the elevator shaft 2 via brackets 19.

[0060] Figure 4 shows a plan view of a car 6 in a further embodiment of an elevator system 1.3. In the elevator shaft 2, a total of six primary section strands 3.1, 3.2, 3.3, 3.4, 3.5, 3.6 are arranged on opposite walls 2.1, 2.2, on which six carriages 6.1, 6.2, 6.3, 6.8, 6.9, 6.10 are also arranged for movement. On a side of the car 6.4 facing the wall 2.3 of the elevator shaft 2, a car door 6.5 is arranged, which corresponds to a shaft door 8. By arranging the primary section strands 3.1, 3.2, 3.3, 3.4, 3.5, 3.6 and the carriages 6.1, 6.2, 6.3, 6.8, 6.9, 6.10 on opposing walls 2.1, 2.2, a significant reduction in the moment acting between the secondary section 17 and the primary section 3 is achieved compared to a pure backpack suspension of the elevator car 6.4 shown in Figure 3, so that the elevator car 6 can bear a much higher load. Furthermore, the walls 2.1, 2.1, support elements 13 are provided that can be extended to reach under the car 6.4 and pick it up to relieve the load on the linear drive. In a different configuration of the elevator system 1.3, the carriages 6.1, 6.2, 6.3, 6.8, 6.9, 6.10 can accommodate car cabins 5.2, 6.4 or containers 6.7, either individually or with fewer than six carriages 6.1, 6.2, 6.3, 6.8, 6.9, 6.10. List of reference symbols.

[0061] 1.1 Elevator system

[0062] 1.2 Elevator system

[0063] 1.3 Elevator system

[0064] 2 elevator shaft

[0065] 2.1 first wall of the elevator shaft

[0066] 2.2 second wall of the elevator shaft

[0067] 2.3 third wall of the elevator shaft

[0068] 2.4 fourth wall of the elevator shaft

[0069] 2.5 Shaft head of the elevator shaft

[0070] 2.6 Shaft pit of the elevator shaft

[0071] 3 Primary part of a linear drive

[0072] 3.1 first primary part strand

[0073] 3.2 second primary strand

[0074] 3.3 third primary strand

[0075] 3.4 fourth primary part strand

[0076] 3.5 fifth primary part strand

[0077] 3.6 sixth primary strand

[0078] 3.7 seventh primary strand

[0079] 3.8 eighth primary strand

[0080] 5 car

[0081] 5.1 Car carriage

[0082] 5.2 Car cabin of the car s

[0083] 5.3 Car door of the car s

[0084] 6 car

[0085] 6.1 Car carriage

[0086] 6.2 Car carriage

[0087] 6.3 Car carriage

[0088] 6.4 Car cabin of the car

[0089] 6.5 Car door of the car s

[0090] 6.6 Car door of the car see

[0091] 6.7 Container for forming the car 6.8 Car carriage

[0092] 6.9 Car carriage

[0093] 6.10 Car carriage

[0094] 7.1 first landing position

[0095] 7.2 second landing position

[0096] 7.3 third landing position

[0097] 7.4 verte landing position

[0098] 8 Elevator shaft door

[0099] 10 transfer unit

[0100] 11 Control device

[0101] 12.1 first parking position

[0102] 12.2 second parking position

[0103] 13 Attachment element

[0104] 14 Charging device

[0105] 14.1 Role of the loading device

[0106] 14.2 Role of the loading device

[0107] 14.3 Role of the loading device

[0108] 14.4 Role of the loading device

[0109] 15.1 first guide rail

[0110] 15.2 second guide rail

[0111] 16 Clutch

[0112] 17 Secondary part of the linear drive

[0113] 18 Coil of the primary part

[0114] 19 Console

[0115] V vertical direction

Claims

Claims 1. Elevator installation (1.1, 1.2, 1.3), in particular for transporting persons and / or goods, comprising an elevator shaft (2) with at least one first primary sub-string (3.1) of a linear drive running in the elevator shaft (2) and a second primary sub-string (3.2) of the linear drive running parallel to the first primary sub-string (3.1) in the elevator shaft (2); and a first carriage (6.1) arranged to be movable on the first primary sub-string (3.1) with a first secondary part (17) of the linear drive arranged thereon, and a second carriage (6.2) arranged to be movable on the second primary sub-string (3.2) with a second secondary part (17) of the linear drive arranged thereon; characterized in that the first carriage (6.1) and the second carriage (6.2) are arranged, on the one hand, for jointly receiving a car (5.2, 6.4) or a container (6.7) and are designed for mutually coupled movement along the respective primary part strands (3.1, 3.2); and that the first carriage (6.1) and the second carriage (6.2) are, on the other hand, designed for mutually independent movement along the respective primary part strands (3.1, 3.2).

2. Elevator installation (1.1, 1.2, 1.3) according to claim 1, wherein the first carriage (6.1) and the second carriage (6.2) are each individually designed to receive a car cabin (5.2).

3. Elevator installation (1.1, 1.2, 1.3) according to claim 1 or 2, further comprising a control device (11) for controlling the linear drive, wherein the first carriage (6.1) and the second carriage (6.2) can be coupled to one another on the control side by means of the control device (11).

4. Elevator installation (1.1, 1.2, 1.3) according to one of the preceding claims, wherein the first carriage (6.1) and the second carriage (6.2) can be releasably coupled to one another mechanically.

5. Elevator installation (1.1, 1.2, 1.3) according to one of the preceding claims, wherein the first primary sub-strand (3.1) is arranged on a first wall (2.1) of the elevator shaft (2) and the second primary sub-strand (3.2) is arranged on a second wall (2.2) of the elevator shaft (2) opposite the first wall (2.1).

6. Elevator installation (1.1, 1.2, 1.3) according to one of the preceding claims, further comprising a car cabin (5.2, 6.4) received on the first carriage (6.1) and the second carriage (6.2).

7. Elevator installation (1.1, 1.2, 1.3) according to claim 6, wherein the elevator shaft (2) has at least one first shaft door (8) on a third wall (2.3) and / or on a fourth wall (2.4) and wherein the elevator car (5.2, 6.4) has a elevator car door (6.5, 6.6) corresponding to the first shaft door (8).

8. Elevator installation (1.1, 1.2, 1.3) according to one of the preceding claims, wherein the first primary sub-strand (3.1) and the second primary sub-strand (3.2) have mutually adjacent transfer units (10) for simultaneously changing a drive direction of the first carriage (6.1) and the second carriage (6.2), in particular between a vertical drive direction and a horizontal drive direction.

9. Elevator installation (1.1, 1.2, 1.3) according to one of the preceding claims, further comprising at least one loading device (14) for loading a container (6.7) and / or a car cabin (5.2, 6.4) onto or from the first carriage (6.1) and / or the second carriage (6.2), wherein the loading device (14) is designed in particular for horizontally pushing the container (6.7) or the car cabin (5.2, 6.4) onto the first carriage (6.1) and / or the second carriage (6.2) and / or for horizontally pushing the container (6.7) or the car cabin (5.2, 6.4) down from the first carriage (6.1) and / or the second carriage (6.2).

10. Elevator installation (1.1, 1.2, 1.3) according to one of the preceding claims, further comprising at least one mounting element (13) which can be introduced into the travel path of the elevator car (5.2, 6.4) or the container (6.7) for mounting the elevator car (5.2, 6.4) or the container (6.7).

11. Elevator installation (1.1, 1.2, 1.3) according to one of the preceding claims, further comprising at least one guide rail (15.1, 15.2) running parallel to the primary part strands (3.1, ..., 3.6) for guiding the elevator car (5.2, 6.4) or the container (6.7) along the primary part strands (3.1, ..., 3.6), wherein the number of guide rails (15.1, 15.2) is smaller than the number of primary part strands (3.1, ..., 3.6).

12. Elevator installation (1.1, 1.2, 1.3) according to one of the preceding claims, wherein the elevator shaft (2) has at least one parking position (12.1, 12.2), in particular in a shaft head (2.5) or in a shaft pit (2.6).

13. Elevator installation (1.1, 1.2, 1.3) according to one of the preceding claims, further comprising a further carriage (5.1) with a car cabin (5.2) received thereon alone, wherein the further carriage (5.1) is arranged to be movable on the first primary sub-strand (3.1) and / or the second primary sub-strand (3.2) and is arranged to be movable in particular via transfer units (10) between the first primary sub-strand (3.1) and the second primary sub-strand (3.2).

14. Method for operating an elevator installation (1.1, 1.2, 1.3) according to one of the preceding claims, wherein the first carriage (6.1) and the second carriage (6.2) in a first operating mode jointly receive a car (5.2, 6.4) or a container (6.7) and are moved coupled to one another on the first primary sub-strand (3.1) and the second primary sub-strand (3.2).

15. The method according to claim 14, wherein a further carriage (5.1) is moved in the first operating mode on the first primary sub-string (3.1) and / or on the second primary sub-string (3.2).

16. Method according to claim 13 or 14, wherein at least one of the first carriage (6.1) and the second carriage (6.2) receives a car (5.2, 6.4) or a container (6.7) alone in a second operating mode and is moved on the first primary sub-string (3.1) and / or on the second primary sub-string (3.2) independently of the other of the first carriage (6.1) and the second carriage (6.2).

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