Method for modernizing a building-integrated passenger transport system, and building-integrated passenger transport system

Abstract

The invention relates to a method for modernizing a building-integrated passenger transport system (10) having an elevator system (12). The elevator system (12) comprises: a shaft (16) extending over a plurality of floors (14) of the building; a shaft interior (18) delimited by shaft walls (20); a first travel path (22) for a first elevator car (24), the first travel path being arranged in the shaft interior (18); a second travel path for a second elevator car, which second travel path is arranged in the shaft interior (18) next to the first travel path (22); a first drive machine (36) associated with the first elevator car (24); and a second drive machine associated with the second elevator car. The method comprises the method steps of increasing a transport capacity of the elevator system (12) on the first travel path (22), removing the second elevator car, and installing a stairway system (58) in the space in the shaft interior (18) claimed by the second travel path of the elevator system (12). The invention also relates to a passenger transport system (10) which can be produced, inter alia, using a method described above.

Description

[0001] 2024P00179WÖ

[0002] - 1 -

[0003] Methods for modernizing a building-bound passenger transport system and building-bound passenger transport system

[0004] The invention relates to a method for modernizing a building-bound passenger transport system with an elevator system having the features of claim 1 and a building-bound passenger transport system with an elevator system and a staircase system having the features of claim 9.

[0005] EP 1319624 B 1 describes a method for modernizing a building-integrated passenger transport system comprising an elevator, a shaft extending over several floors of the building, and at least two parallel travel paths in the shaft, each for an elevator car. This method increases the transport capacity of the elevator on both travel paths, including the first travel path.

[0006] German patent DE 20 2024 000 835 Ul describes a building-integrated passenger transport system with a shaft extending over several floors of a building. Within the shaft's interior, three travel paths, each for a single elevator car, are arranged. The first travel path is separated from the second and third by an intermediate wall. Stair elements are pivotally mounted on two opposing walls bordering the second and third travel paths. In the event of a necessary evacuation of the passenger transport system, these elements can be swung downwards to form an escape staircase. Actions are therefore required to create and utilize the escape staircase.The aforementioned pivoting may be problematic or impossible if, in the event of a necessary evacuation of the passenger transport system, an elevator car is arranged in such a way that it is no longer movable in the second or third travel path, making it difficult or impossible to pivot the stair elements.

[0007] In contrast, the object of the invention is, in particular, to propose a method for modernizing a building-integrated passenger transport system with an elevator, by means of which a permanently usable escape route from a building can be realized without requiring additional installation space, as well as a corresponding building-integrated passenger transport system. According to the invention, this 2024P00179WÖ

[0008] - 2 -

[0009] The problem is solved by a method having the features of claim 1 and a building-bound passenger transport system having the features of claim 9.

[0010] The inventive method for modernizing a building-bound passenger transport system with an elevator system comprising a shaft extending over several floors of the building, a shaft interior bounded by shaft walls, a first travel path for a first elevator car of the elevator system arranged in the shaft interior, a second travel path for a second elevator car of the elevator system arranged next to the first travel path in the shaft interior, a first drive motor assigned to the first elevator car and a second drive motor assigned to the second elevator car, with the process steps of increasing a transport capacity of the elevator system on the first travel path, removing the second elevator car and installing a staircase in the space occupied by the second travel path of the elevator system in the shaft interior.The aforementioned process steps of the inventive process can, but do not have to, be carried out in the stated order.

[0011] The integrated staircase creates an escape route from the building that is independent of the elevator system. By installing the staircase in the space within the shaft occupied by the elevator's second travel path, the overall space requirement of the modernized passenger transport system remains unchanged. The aforementioned increase in transport capacity on the primary travel path at least partially, and in particular completely, compensates for the capacity loss of the elevator system resulting from the removal of the second elevator car. This modernization process thus provides an escape route via a staircase within the building without significantly reducing, or ideally, not reducing at all, the elevator's transport capacity.

[0012] A requirement to provide an additional escape route from a building can arise, for example, from new legal regulations or changes to existing regulations. For instance, legislation may require that certain buildings, such as public buildings, must, from a specific date, have not just one escape route via a staircase, but two independent escape routes, each via its own staircase. The installation of a staircase with a new [unclear - possibly referring to 2024P00179WÖ]

[0013] - 3 - Constructing a stairwell inside an existing building is difficult and in many cases simply not feasible. Firstly, sufficient space is required, and secondly, creating a stairwell necessitates complex and therefore expensive openings in the building's ceilings and walls. Instead of constructing the staircase inside the building, there is the option of adding an external staircase to the exterior. However, this is often not possible or at least not desirable, for example, due to space constraints or historic preservation regulations.

[0014] The inventive method thus has the advantage that, in buildings with a passenger transport system with multiple travel paths for each elevator car, an additional escape route via a staircase can be implemented relatively easily and without penetrations in ceilings or walls, while still resulting in no or only minor reductions in transport capacity. The inventive method is therefore cost-effective and applicable in a large number of buildings.

[0015] The building housing the building-integrated passenger transport system has several floors, for example, more than three, all of which are served by the elevator system. The elevator shaft thus extends over several, in particular all, floors of the building. The elevator shaft has at least one access door for each served floor, through which passengers can enter or exit an elevator car stopped at that floor. Passengers can thus be transported between the floors of the building.

[0016] The shaft walls, which define the interior of the shaft, are primarily made of concrete, but can also be constructed of wood or metal. The individual travel paths can be separated from one another by intermediate beams. These intermediate beams are also known as divider beams. Guide rails for an elevator car or a counterweight connected to the elevator car via a load-bearing element are attached to these intermediate beams. The travel paths can also be further separated by additional partitions, such as partition walls. More than one elevator car can travel along a single travel path. 2024P00179WÖ

[0017] - 4 -

[0018] Within the shaft interior, more than two travel paths for elevator cars can be arranged side by side; for example, three to six travel paths can be arranged side by side. In particular, a staircase is installed in only one of the travel paths within the shaft interior, while all others continue to be used for moving elevator cars. In this case, the transport capacity is increased on all travel paths still used for moving elevator cars. It is also possible for a staircase to be installed in more than one travel path if there are more than two travel paths.

[0019] Each elevator car is typically assigned a drive motor, by means of which a load-bearing element coupled to the assigned elevator car, and thus the assigned elevator car itself, can be moved along its travel path. The drive motors are located, in particular, in the upper part of the shaft. They can be positioned next to, and thus on, a shaft wall or above the respective travel path. The drive motors are, in particular, located in a machine room situated above the travel paths of the elevator car. In all cases, a drive motor is fixed to a shaft wall, a shaft ceiling, or the floor of a machine room by means of a mounting device. The method according to the invention is also applicable to passenger transport systems with elevators featuring self-propelled elevator cars. In this case, the drive motor assigned to an elevator car, or at least parts thereof, is arranged on the elevator car.It is also possible in this process to replace an elevator car moved by load-bearing means with one or more self-propelled elevator cars.

[0020] The second elevator car, and in particular other elevator components required for relocating the second car, such as guide rails, counterweight, and safety switches, will be removed. Shaft doors of the elevator system along the second travel path will be replaced, in particular, with conventional doors, especially emergency exit doors. The second drive unit, and in particular the lifting device associated with it, will not be removed and will remain in place. This allows for the possibility of reinstalling a second elevator car at a later date with comparatively little effort.

[0021] When installing the staircase system, stair elements, especially prefabricated 2024P00179WÖ

[0022] - 5 -

[0023] Stair elements are used, which are fixed immovably to the shaft walls and / or the aforementioned intermediate supports, and thus within the stairwell, and are each supported by a stair element below. The lowest stair element is supported, in particular, by the floor of the shaft. The staircase can be designed, for example, as a spiral staircase. However, other types of staircases, such as stringer staircases, are also possible.

[0024] The built-in staircase may, but does not necessarily, occupy exactly the space of the second travel path. It is possible that the staircase will occupy more or less space than the second travel path. Depending on the space required by the staircase, an adjustment of the first travel path and / or the first elevator car may be necessary.

[0025] The staircase is separated from the first travel path of the first elevator car, particularly by separating elements such as wooden or plastic panels or a net. This ensures that a person or object on the staircase cannot collide with the first elevator car.

[0026] Increasing the elevator's transport capacity on the first travel path—that is, the number of people that can be transported in the first elevator car within a given time—is achieved primarily through the implementation of a destination call control system for inputting and processing travel requests for the first elevator car. With a destination call control system, when a user or passenger calls an elevator car on a given floor, the destination floor is already entered. A destination call control system includes operator terminals on the floors served by the elevator, where users can enter a destination floor, as well as an elevator control unit with corresponding control software. The input of the destination floors by the users allows the elevator control unit to precisely schedule and control the drive motors accordingly, thereby significantly increasing transport capacity.Destination call systems, by knowing the destinations of individual users, can transport people with the same destination in the same elevator car, thus saving stops. With the described implementation of a destination call system, an existing elevator control system can be updated with new control software, the existing elevator control system can be replaced, or an additional elevator control system can be added. 2024P00179WÖ.

[0027] - 6 -

[0028] In contrast, with a conventional control system, a user selects at most the desired direction of travel and chooses the destination in the next elevator car that stops. The destination is therefore known much later, making it difficult or even impossible to optimize the car's journeys.

[0029] In the case of more than one travel path in the shaft interior that continues to be used for moving elevator cars, in particular all travel paths still used for moving elevator cars are included in the aforementioned destination call control for the elevator system.

[0030] Increasing the transport capacity of the elevator system on the first travel path can also be achieved in other ways, either additionally or alternatively. For example, the speed of the first elevator car between floors can be increased, the opening and closing of the doors when stopping at a floor can be accelerated, and / or the transport capacity of the first elevator car can be increased. It is also possible to increase the number of elevator cars on a travel path. For example, instead of just one elevator car, two or more elevator cars can be moved along a single travel path. The elevator cars assigned to a travel path can be moved using individual lifting devices, or self-propelled elevator cars can be used.

[0031] In this embodiment of the invention, fastening means for elevator components of the elevator system are used in the second travel path to fix the staircase within the shaft. This significantly reduces the effort required to install the staircase in the space occupied by the second travel path of the elevator system. In addition to the aforementioned fastening means for elevator components, further fastening means can be used to fix the staircase within the shaft.

[0032] The staircase is designed specifically so that the aforementioned fasteners for elevator components can be used directly. For example, the shaft, including the aforementioned fasteners for elevator components, can be measured, and the staircase can be manufactured to fit the shaft and the positions of the aforementioned fasteners. It is also possible for the staircase to be designed in such a way that fixing elements, 2024P00179WÖ, interact with the aforementioned fasteners.

[0033] - 7 - for example, adjustable in the form of eyelets or retaining plates, and thus adaptable to the positions of the aforementioned fastening devices.

[0034] The aforementioned fasteners used for elevator components include, in particular, anchor bolts for fixing rail brackets that support guide rails. Anchor bolts are driven into holes in the shaft walls. A portion of the anchor bolt protruding from the shaft wall has an external thread, allowing components to be fixed to the shaft wall using a nut. Since high forces act on the guide rails during elevator operation, which guide the elevator car and the counterweight, the anchor bolts are robustly designed and securely anchored in the shaft walls. This robust design and secure anchoring are advantageously used to fix the staircase within the shaft. This saves costs, effort, and time compared to using new fasteners for securing the staircase.

[0035] The aforementioned fastening devices used for elevator components of the elevator system include, in addition to the anchor bolts for fixing rail brackets for holding guide rails, wall sections of the aforementioned multi-part rail brackets. This allows a particularly large number of elevator components of the elevator system to be used advantageously for fixing the staircase in the shaft.

[0036] Rail brackets for supporting the guide rails of elevator systems are typically designed in two parts. An angled wall section is fixed to a shaft wall, usually with two anchor bolts. A similarly angled rail section is screwed to the wall section, and the relative position of the two parts can be adjusted within certain limits by providing elongated holes in the sections. Such rail brackets are also known as Z-brackets. A guide rail is attached to the rail section of the rail bracket using rail clips, thus securing the guide rail to the shaft wall via the rail bracket.

[0037] The aforementioned fastening devices used for elevator components of the elevator system include, in particular, intermediate beams between the first travel path and the second travel path for holding rail brackets for securing guide rails. These intermediate beams or divider beams run between opposing shaft walls. 2024P00179WÖ

[0038] - 8 -

[0039] One of the aforementioned shaft walls has a shaft opening in which a shaft door is located. The elevator system features several intermediate beams, which run primarily horizontally and are spaced apart vertically. Rail brackets are attached to the intermediate beams, for example, by means of which guide rails are held. The intermediate beams thus enable the arrangement of guide rails between the first and second travel paths. Using the intermediate beams to fix the staircase allows for a particularly simple and stable fixation of the staircase in the area between the first and second travel paths.

[0040] The aforementioned fastening devices used for elevator components of the elevator system include, in addition to the intermediate supports between the first and second travel paths for holding rail brackets for guide rails, wall sections of the aforementioned multi-part rail brackets, as well as screw connections between wall sections and intermediate supports. This allows a particularly large number of elevator components of the elevator system to be used advantageously for fixing the staircase in the shaft.

[0041] The aforementioned task is also solved by a building-integrated passenger transport system comprising an elevator system with a first elevator car and a first drive motor, and a staircase. The interior of a shaft extending over several floors of a building is bounded by shaft walls. Within the shaft interior, a first travel path for the first elevator car and a stairwell of the staircase are arranged side by side. The first drive motor can move a first load-bearing element, coupled to the first elevator car, along the first travel path. A mounting device for a second drive motor, designed analogously to the first, is located in the stairwell of the staircase. The staircase comprises stair elements fixed immovably within the stairwell.

[0042] The staircase is therefore permanently usable without any changes to its structure. No elevator car is located in the stairwell. The stair elements can, for example, each extend over the height of a floor. The stair elements can also be taller or shorter than the height of a floor. The stair elements are primarily designed as prefabricated stair elements; they are manufactured using part number 2024P00179WÖ.

[0043] - 9 - meaning they are delivered to the passenger transport system in a state ready for installation. They are prefabricated, especially in a factory, and can be made primarily of metal or concrete, for example.

[0044] The passenger transport system according to the invention is constructed, in particular, using a method for modernizing a building-integrated passenger transport system described above. However, it is also possible for it to be constructed in another way. Regardless of how the passenger transport system is constructed, providing a mounting device for a second drive motor, designed analogously to the first, in the stairwell of the staircase has the advantage that a second travel path for a second elevator car can be installed in the space occupied by the stairwell with comparatively little effort. The shaft of the passenger transport system is thus particularly flexible in its use.

[0045] The mounting device for a second drive motor, designed analogously to the first, can, for example, be a base located in a machine room at the top of the shaft. Additional components, such as anchor bolts or rails, can be attached to this base. Alternatively, the mounting device can be a bracket fixed to a shaft wall to accommodate a drive motor.

[0046] An analogous design of the second drive motor to the first drive motor means, in particular, that the second drive motor is identical in design to the first drive motor. However, it may also be designed differently from the first drive motor. It simply needs to be designed in such a way that it can be mounted on or attached to the intended lifting device and used to move an elevator car.

[0047] It is particularly advantageous if a second drive unit, designed analogously to the first, is fixed in the stairwell of the stair system by means of the aforementioned mounting device. If the passenger transport system is constructed using the method described above for modernizing a building-integrated passenger transport system with an elevator, then the second drive unit does not need to be removed. This is particularly advantageous because such a drive unit is comparatively heavy and therefore costly to transport. 2024P00179WÖ

[0048] - 10 - is. This makes the passenger transport system particularly easy and cost-effective to create.

[0049] The embodiments and exemplary embodiments of the invention described below relate equally to the passenger transport system and the method. In other words, features mentioned below, for example, with reference to the passenger transport system, can also be implemented as method steps, and vice versa.

[0050] It is noted that some of the possible features and advantages of the invention are described herein with reference to different embodiments of the passenger transport system according to the invention, on the one hand, and of the method according to the invention, on the other. A person skilled in the art will recognize that the features can be suitably combined, adapted, transferred, or exchanged to arrive at further embodiments of the invention.

[0051] Further advantages, features, and details of the invention will become apparent from the following description of exemplary embodiments and from the drawings, in which identical or functionally equivalent elements are provided with identical reference numerals. The drawings are schematic only and not to scale.

[0052] This shows:

[0053] Fig. 1 shows a passenger transport system with an elevator system before modernization.

[0054] Fig. 2 shows the passenger transport system from Fig. 1 during modernization.

[0055] Fig. 3 shows the passenger transport system from Fig. 1 after completion of the modernization,

[0056] Fig. 4 shows a detail of a stair system of the modernized passenger transport system being fixed to a shaft wall.

[0057] Fig. 5 shows a detail of an alternative fixing of a staircase of the modernized passenger transport system to a shaft wall.

[0058] Fig. 6 shows a detail of the fixing of a staircase of the modernized passenger transport system to an intermediate support beam and

[0059] Fig. 7 shows a detail of an alternative fixing of a staircase system of the modernized passenger transport system to an intermediate support.

[0060] According to Fig. 1, a building to be modernized, including a staircase, has 2024P00179WÖ

[0061] - 11 - building-integrated passenger transport system 10 via an elevator system 12 with a shaft 16 extending over several floors 14 of a building (not shown). The shaft interior 18 is bounded by shaft walls 20. In the shaft interior 18, a first travel path 22 for a first elevator car 24 is arranged next to a second travel path 26 for a second elevator car 28. The first elevator car 24 is connected to a first counterweight 32 by a first suspension element 30, for example, in the form of a rope or a belt. The first suspension element 30, and thus the first elevator car 24 and the first counterweight 32, can be moved by a first drive motor 36 located in a machine room 34 at the top of the shaft 16. The first drive motor 36 is supported on a first mounting device 38, which is supported on a floor 40 of the machine room 34.Similarly, the second elevator car 28 is connected to a second suspension element 42 and a second counterweight 44. The second suspension element 42, and thus the second elevator car 28 and the second counterweight 44, can be moved by a second drive motor 46, also located in the machine room 34. The second drive motor 46 rests on a second lifting device 48, which is also supported on the floor 40 of the machine room 34.

[0062] The elevator system can also have more than two travel paths for elevator cars. The drive motors could also be mounted on the shaft walls of the elevator shaft using appropriate mounting devices.

[0063] Outer guide rails 50 are fixed to the shaft walls 20 by means of multi-part rail brackets 49, which are shown only very schematically in Fig. 1. Between the first travel path 22 and the second travel path 26, four vertically spaced intermediate beams 52 run perpendicular to the plane of Fig. 1. Outer guide rails 54 are fixed to the intermediate beams 52 by means of multi-part rail brackets 49, which are also shown only very schematically in Fig. 1. During movement along their respective travel paths 22 and 26, the two elevator cars 24 and 28 are guided by one outer guide rail 50 and one inner guide rail 54, respectively.

[0064] The elevator system 12 has a conventional control system with an elevator control unit 55 located in the machine room 34, where a user can call an elevator car via a call button 56 on a floor 14. When the elevator car is at the corresponding 2024P00179WÖ

[0065] - 12 -

[0066] Once the desired floor has been reached, the user enters the elevator car and selects their desired destination floor from a suitable selection field (not shown). The elevator car then travels to this floor. The call buttons 56 are connected to the elevator control unit 55 via cables (not shown). The elevator control unit 55 controls the two drive motors 36 and 46 via cables (also not shown) to process the calls.

[0067] To modernize the passenger transport system 10, the second elevator car 28, the second suspension element 42, the second counterweight 44, and the guide rails 52, 54 associated with the second travel path 26 are removed. Additionally, other elevator components associated with the second travel path 26, such as safety switches and shaft doors, are removed. The second drive motor 46 and the second lifting device 48, as well as fastening elements for elevator components associated with the second travel path 26, are not removed and thus remain in place. The fastening elements that are not removed are discussed in connection with Figures 4-7. A passenger transport system 10 after the removal of the aforementioned elevator components, and thus during the modernization, is shown in Figure 2.

[0068] After removing the aforementioned elevator components, the transport capacity of the elevator system 12 on the first travel path 22 is increased, and a staircase 58 is installed in the space occupied by the second travel path 26 of the elevator system 12 within the shaft interior 18 of the shaft 16. A passenger transport system 10 after completion of these works is shown in Fig. 3.

[0069] To increase the transport capacity of the elevator system 12 on the first travel path 22, a destination call control system 53 is implemented for entering and processing travel requests for the first elevator car. For this purpose, the call buttons 56 on floors 14 are removed and replaced by operating terminals 60. A user can enter their destination floor and thus a travel request via the operating terminals 60. In addition, the existing elevator control unit 55 is replaced by a more modern elevator control unit 57. The more modern elevator control unit 57 and the operating terminals 60 thus form the destination call control system 53. After a call is entered, the elevator control unit 57 knows both the floor where the user is located and their destination floor and can therefore precisely plan and execute the user's trip together with the travel requests of other users. Compared to the previous 2024P00179WÖ

[0070] - 13 - By using the conventional control system of the elevator system 12, a higher transport capacity of the elevator system is achieved on the first travel path.

[0071] Increasing the elevator's transport capacity on the first travel path can also be achieved in other ways, either additionally or alternatively. For example, the speed of the first elevator car between floors can be increased, the opening and closing of the doors when stopped at a floor can be accelerated, and / or the transport capacity of the first elevator car can be increased. It is also possible to increase the number of elevator cars on a travel path. For example, instead of just one elevator car, two or more elevator cars can be moved along a single travel path. The elevator cars assigned to a travel path can be moved using individual lifting devices, or self-propelled elevator cars can be used. Alternatively, the elevator system may already have a destination call control system before the described modernization.

[0072] A stairwell 59 of the stair system 58 occupies the space of the second travel path 26 of the second elevator car 28 before the start of the modernization. Thus, the stairwell 59 of the stair system 60 is located in shaft 16 next to the first travel path 22 of the elevator system 12. During the installation of the stair system 58, prefabricated stair elements 61a, 61b are used, which are fixed immovably to the shaft walls 20 of the shaft 16 and / or to intermediate supports, and thus within the stairwell 59, and each rests on a stair element below it. The lowest stair element 61a then rests on a floor 62 of the shaft 16. The stair element 61b above it is thus supported by the lowest stair element 61a. In the staircase 58 shown in Fig. 1, the stair elements 61a, 61b each extend over the height of one floor. The stair elements can also be made higher or lower.Staircase 58 is shown in Fig. 3 as a spiral staircase. However, other staircase types, such as stringer staircases, are also possible.

[0073] In addition, 14 emergency exit doors 64 are installed on each floor, providing access to the stairwell 58. Furthermore, to separate the first travel path 22 of the first elevator car 24, separating elements in the form of plastic panels 66 are arranged. The plastic panels 66 are attached to the intermediate supports 52, in particular by screwing them in place. 2024P00179WÖ

[0074] - 14 -

[0075] Figure 3 shows a building-integrated passenger transport system 10 with an elevator system 12 comprising a first elevator car 24, a first drive motor 36, and a stair system 58. The shaft interior 18 of the shaft 16 of the passenger transport system 10, which extends over several floors 14 of a building (not shown), is bounded by shaft walls 20. Within the shaft interior 18, a first travel path 22 for the first elevator car 24 of the elevator system 12 and a stairwell 59 of the stair system 60 are arranged side by side. By means of the first drive motor 36, the first suspension element 30, coupled to the first elevator car 24, and thus the first elevator car 24, can be moved along the first travel path 22. The second lifting device 48 and the second drive motor 46, designed analogously to the first drive motor 36, are arranged in the stairwell 59 of the stair system 58.The area of ​​the machine room 34, in which the second receiving device 48 and the second drive machine 46 are arranged, is considered part of the stairwell 59.

[0076] In the described procedure for modernizing the building-bound passenger transport system 10 with the elevator system 12 according to Fig. 1, the following procedure steps are carried out as described:

[0077] - Increasing the transport capacity of the elevator system 12 on the first travel path 22,

[0078] - Removal of the second elevator car 28 and

[0079] - Installation of a staircase 58 in the space occupied by the second travel path 26 of the elevator system 12 in the interior 18 of the shaft 16.

[0080] By carrying out the further process steps described above, one arrives at the passenger transport system 10 according to Fig. 3, starting from a passenger transport system according to Fig. 1.

[0081] To fix the staircase 58 in the stairwell 59 and thus in the shaft 16, fastening means for elevator parts of the elevator system 12 are used in the second travel path 26.

[0082] According to Fig. 4, a bracket 68 welded to the stair system 58 is fixed to a shaft wall 20 by an anchor bolt 70. In the elevator system 12 in Fig. 1, the anchor bolt 70 served to fix a two-part rail bracket 49 for holding the outer guide rail 50 in the second travel path 26. [A 2024P00179WÖ]

[0083] - 15 - The projecting part 72 of the anchor bolt 70 has an external thread, so that the holder 68 is fixed to the shaft wall 20 by means of the anchor bolt 70 with the help of a nut 74.

[0084] According to Fig. 5, in addition to the anchor bolt 70, a wall section 76 of a rail bracket 49 is used to support the outer guide rail 50 in the second travel path 26. The angled wall section 76 is fixed to the shaft wall 20 with two anchor bolts 70. A bracket 68, also angled and welded to the stair assembly 58, is screwed to the wall section 76, whereby the position of the two parts relative to each other can be adjusted within certain limits by providing elongated holes in the parts.

[0085] According to Fig. 6, a bracket 68 welded to the stair system 58 is fixed to an intermediate support 52 by a screw connection 73. In the elevator system 12 in Fig. 1, the intermediate support 52 served to fix a two-part rail bracket 49 for holding the inner guide rail 54 in the second travel path 26.

[0086] According to Fig. 7, in addition to the intermediate support 52, a wall section 76 of a rail bracket 49 is used to support the inner guide rail 54 in the second travel path 26. The angled wall section 76 is fixed to the intermediate support 52 with two screw connections 73. The two screw connections 73 are thus also reused. An angled bracket 68, welded to the stair assembly 58, is screwed to the wall section 76, whereby the position of the two parts relative to each other can be adjusted within certain limits by providing elongated holes in the parts.

[0087] Finally, it should be noted that terms such as "comprising," "encompassing," etc., do not exclude other elements or steps, and terms such as "a" or "an" do not exclude a plurality. Furthermore, it should be noted that features or steps described with reference to one of the above embodiments may also be used in combination with other features or steps from other embodiments described above. Reference numerals in the claims are not to be considered as limitations.

Claims

2024P00179WÖ - 16 - Patent claims 1. Method for modernizing a building-bound passenger transport system (10) comprising an elevator system (12) - a shaft (16) extending over several floors (14) of the building, - a shaft interior (18) of the shaft (16) bounded by shaft walls (20), - a first travel path (22) arranged in the shaft interior (18) for a first elevator car (24) of the elevator system (12), - a second travel path (26) arranged in the shaft interior (18) next to the first travel path (22) for a second elevator car (28) of the elevator system (12), - one of the first elevator cabins (24) assigned to the first drive motor (36) and - a second drive machine (46) assigned to the second elevator car (28), with the process steps: - Increasing the transport capacity of the elevator system (12) on the first travel path (22), - Removal of the second elevator car (28) and - Installing a staircase (58) in the space occupied by the second travel path (26) of the elevator system (12) in the shaft interior (18) of the shaft (16).

2. Method according to claim 1, characterized in that, in order to increase the transport capacity on the first travel path (22), a destination call control system (53) for inputting and processing travel orders for the first elevator car (24) is implemented in the elevator system (12).

3. Method according to claim 1 or 2, characterized in that the second drive machine (46) is removed and a second receiving device (48) for the second drive machine (46) remains.

4. Method according to claim 1, 2 or 3, characterized in that Fastening means (52, 70, 73, 76) for elevator parts of the elevator system (12) in the second travel path (26) for fixing the staircase system (58) in the shaft interior (18) of the shaft 2024P00179WÖ - 17 - (16) can be used.

5. Method according to claim 4, characterized in that the aforementioned fastening means used for elevator parts of the elevator system (12) comprise anchor bolts (70) for fixing rail brackets (49) for holding guide rails (50).

6. Method according to claim 5, characterized in that the aforementioned fastening means used for elevator parts of the elevator system (12) comprise, in addition to the anchor bolts (70) for fixing rail brackets (49) for holding guide rails (50), wall parts (76) of the aforementioned multi-part rail brackets (49).

7. Method according to claim 4, characterized in that the aforementioned fastening means used for elevator parts of the elevator system (12) comprise intermediate supports (52) between the first travel path (22) and the second travel path (26) for holding rail brackets (49) for supporting guide rails (54).

8. Method according to claim 7, characterized in that the aforementioned fastening means used for elevator parts of the elevator system (52) comprise, in addition to the intermediate supports (52) between the first travel path (22) and the second travel path (26) for holding rail brackets (49) for supporting guide rails (54), wall parts (76) of the aforementioned multi-part rail brackets (49).

9. Building-integrated passenger transport system with - an elevator system (12) with a first elevator car (24) and a first drive machine (36), - a staircase (58) and - a shaft (16) extending over several floors (14) of a building, wherein 2024P00179WÖ - 18 - - a shaft interior (18) of the shaft (16) is bounded by shaft walls (20), - in the shaft interior (18) a first travel path (22) of the first elevator car (24) of the elevator system (14) and a stair shaft (59) of the stair system (58) are arranged next to each other, - by means of the first drive machine (36) a first support element (30) coupled to the first elevator car (24) and thus the first elevator car (24) can be moved along the first travel path (22) and - in the stairwell (59) of the stair system (58) a receiving device (48) for a second drive machine (46) designed analogously to the first drive machine (36) is arranged, characterized in that the stair system (58) has stair elements (61a, 61b) fixed immovably in the stairwell (59).

10. Building-bound passenger transport system according to claim 9, characterized in that a second drive machine (46) designed analogously to the first drive machine (36) is fixed in the stairwell (59) of the stair system (58) by means of the said mounting device (48).

11. Building-bound passenger transport system according to claim 9 or 10, characterized in that the elevator system (12) has a destination call control system (53) for inputting and processing travel orders for the first elevator car (24).

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