Installation assembly and method for installing an elevator

Abstract

The invention relates to an installation assembly for an elevator (1) having an elevator car (3) which comprises deflection pulleys (7, 8) which are arranged on the lower face of the car and via which deflection pulleys (7, 8) the elevator car (3) can be suspended underloopingly on support means (30), wherein the elevator car (3) has a car roof (6) designed as an installation platform, comprises a suspension structure (11), installation support means (5, 6) formed by cables or belts and connected to the suspension structure (11) for suspending the elevator car (3), and a lifting device (12) by means of which the elevator car (3) suspended from the suspension structure (11) is movable in the elevator shaft (2).

Description

[0001] 2024P00181WÖ

[0002] - 1 -

[0003] Installation arrangement and procedure for installing an elevator

[0004] The invention relates to an installation arrangement for an elevator and a method for installing an elevator.

[0005] An elevator for transporting people and goods comprises an elevator car that moves up and down vertically in an elevator shaft and is supported by load-bearing elements in the form of ropes or belts. These load-bearing elements are, for example, connected to a traction sheave driven by an electric motor. To ensure that the elevator car is guided precisely in a linear direction, guide rails are used, which are fixed in the elevator shaft. The guide rails consist of individual guide rail segments that are fixed in the elevator shaft by means of mounting brackets. In addition to the elevator car, the elevator system generally includes at least one counterweight that moves in the opposite direction in the elevator shaft. The elevator car may have a cabin in which people and goods can be transported. The elevator car, or...The car body comprises a floor, side walls, and ceiling, as well as one or two doors. The elevator car may also have a support structure to carry or brace the car body. If the car is suspended from the suspension elements in a sling configuration, the support structure is located below the car body. In a 2:1 suspension configuration, the support structure may have two pulleys positioned at its ends. These pulleys deflect the suspension elements running along the side walls, causing them to run more or less parallel to the car floor beneath the car. The pulleys are mounted, for example, on roller bearings to allow free rotation.

[0006] From WO 2024 / 132536 Al, an elevator with a 2:1 suspension configuration is known, in which the elevator car is suspended from the underside of the load-bearing elements. This prior art concerns an elevator system with an elevator shaft that increases in height as the building grows during the construction phase, in which the elevator car of a so-called construction-phase elevator can travel. During the construction period, the elevator car can transport construction workers, building materials, and users of previously constructed buildings. 2024P00181WÖ

[0007] - 2 - The elevator is used to transport people to apartments or commercial premises during the building's completion phase. The elevator car of the construction-phase elevator is suspended from a machine platform that can be moved along the elevator shaft. In addition to the elevator car, the construction-phase elevator includes a counterweight that moves in the opposite direction to the elevator car within the elevator shaft. A drive unit, located on the machine platform, powers the lifting mechanism and thus moves the elevator car and counterweight. The machine platform can be raised by means of a lifting device within the elevator shaft and thus adjusted to the increasing building height. All installation work on this elevator system takes place in an area located above the machine platform.For this purpose, a suitable installation arrangement is provided above the machine platform, which includes a system for equipping the upward-growing elevator shaft with guide rails for the guide rail system. No further installation work is carried out in the area below the machine platform, as the elevator is already completed there. The elevator car is not used for installation.

[0008] US Patent 2010 / 133048 A1 describes an installation arrangement and installation procedure in which at least part of the elevator car used in normal operation is used as an installation platform.

[0009] It is an object of the present invention to avoid the disadvantages of the known and in particular to create an installation arrangement for elevators with which an elevator comprising an elevator car and deflection pulleys arranged on the underside of the car, by means of which the elevator car can be suspended by looping it on support means, can be installed simply and safely.

[0010] This problem is solved according to the invention with an installation arrangement having the features of claim 1. The elevator to be installed with the installation arrangement is an elevator with an elevator car that moves in an elevator shaft and includes deflection pulleys arranged on the underside of the car, over which the elevator car is suspended from support elements. After completion of the elevator installation, persons and goods can be transported between floors in normal operation; the aforementioned method of the elevator car thus relates to a normal operating phase for normal car journeys. These support elements are therefore associated with normal operation. 2024P00181WÖ

[0011] - 3 -

[0012] The installation arrangement serves, for example, to install mounting brackets and guide rails for guiding the elevator car, as well as other shaft components, within the elevator shaft. Furthermore, counterweight guide rails and associated supports for these rails can also be installed in the elevator shaft using the installation arrangement. It is also conceivable that a traction drive could be transported upwards to the shaft head using the installation arrangement, where it would be positioned and fixed within the elevator shaft. The installation arrangement features a preferably rigid suspension structure, advantageously located or arrangable in the area of ​​the upper surface of an elevator car, which includes deflection pulleys arranged on the underside of the car. The elevator car can be suspended from or is suspended by this structure, with the elevator car having a roof designed as an installation platform.The suspension structure, located near the top of the car, can be positioned close to the car. Advantageously, the suspension structure can be located less than 2 m, and preferably less than 1 m, from the top of the car. The installation arrangement further comprises at least one support element, formed by a rope or strap and connected to the suspension structure, for suspending the car via the pulleys. During the installation phase, the car is suspended from the at least one support element by looping it over the pulleys. The installation arrangement then includes a lifting device by means of which the car suspended from the suspension structure can be moved vertically, particularly upwards, within the elevator shaft.This installation arrangement allows even elevator cars whose roofs are unsuitable for conventional lifting devices, as they are often not sufficiently robust, to be lifted. The elevator car itself, with the pulleys mounted on its underside, can of course be part of the installation arrangement.

[0013] This installation arrangement ensures that an elevator comprising an elevator car and pulleys located on the underside of the car, allowing the car to be suspended from the supporting structure by way of a loop, can be installed simply and safely. For the looping motion, one of the pulleys (hereinafter also referred to as the "first pulley") can be located on one side of the elevator car, and the other pulley (hereinafter also referred to as the "second pulley") can be located on the opposite side of the elevator car. The suspension structure also has two sides. One side of the suspension structure is on the same side as the first side of the elevator car, while the other side of the suspension structure is on the opposite side. 2024P00181WÖ

[0014] - 4 - the same side as the second side of the elevator car.

[0015] The elevator car features a cabin roof designed as an installation platform, allowing personnel to access the elevator shaft from the roof to perform installation work. The elevator car used in the installation arrangement is advantageously the final elevator car, which will ultimately transport people and goods between floors during normal operation.

[0016] The lifting device, by means of which the elevator car suspended from the suspension structure can be moved vertically and especially upwards in the elevator shaft during the installation phase, can be connected or connectable to a fixed point, preferably in the area of ​​the shaft head, in particular a fixed point arranged on the shaft ceiling. Alternatively, it is also conceivable to choose another point, e.g., the lifting device can be connected to a point on a load, such as a point on the suspension structure in this case.

[0017] The installation support, from which the elevator car is suspended via pulleys during the installation phase, is a rope or a belt. The same material can be used for the rope or belt as for the elevator's subsequent suspension system. However, compared to the elevator's suspension system, the installation support is significantly shorter, as it only needs to suspend the elevator car from the suspension structure. In contrast, the elevator's suspension system can be very long, depending on the building height and especially in a 2:1 suspension configuration. For example, in elevator systems for tall buildings, the suspension systems can be over 100 m long, and in some cases up to 500 m or more. The installation support, on the other hand, is often less than 10 m long.The installation support structure of the installation arrangement is usually removed after completion of the installation phase; new ropes or a belt are advantageously used for the support structure(s) of the elevator.

[0018] The suspension structure can be a structure for suspending the elevator car that is fixed relative to the car, so that the suspension structure and car can move simultaneously in the elevator shaft. This means that when the elevator car ascends, the suspension structure can always move along with it. 2024P00181WÖ

[0019] - 5 -

[0020] According to one embodiment, at least one installation support element is attached to the suspension structure via support element fixings. Depending on the dimensions of the elevator car and the pulleys, the installation support element can have a specific rope or belt length, so that the installation arrangement consequently has two support element fixings for each installation support element. Each support element fixing can include a tie rod that is guided through one or more bores in the suspension structure. Furthermore, a force storage element, for example a helical compression spring, supported on the suspension structure, can be arranged on the tie rod.

[0021] End connections can be used to connect the installation support structure, which consists of a rope or strap, to the suspension structure. Examples of end connections include wedge locks. In these connections, a wedge is wrapped around the installation support structure. The tensile load on the support structure clamps the wedge in the wedge lock. End connections can also be formed by wrapping the installation support structure around two wrapping elements.

[0022] Then, such a load-bearing end connection can, for example, be suspended from the associated load-bearing attachment via the aforementioned threaded rod.

[0023] For an advantageous installation arrangement, the at least one installation support element can be designed to be fixed relative to the suspension structure and form a U-shape, extending from a first side of the suspension structure to a first deflection pulley, then from this first deflection pulley to a second deflection pulley opposite it, and finally from this second deflection pulley to a second side of the suspension structure opposite the first. The installation support element, designed to be fixed relative to the suspension structure, is thus advantageously not operatively connected to a drive; a drive for moving the installation support element is not necessary. The "U," i.e., the at least one installation support element forming a U-shape, therefore consists of two vertical sections and a horizontal section that connects the two vertical sections.

[0024] This suspension, characterized by a simple U-shape with only the three aforementioned sections (two vertical sections, one horizontal section), allows for the installation of 2024P00181WÖ

[0025] - 6 - a system arrangement can be created with which an elevator can be installed particularly easily and safely. The installation support structure can thus run from the first side of the suspension structure, starting from a support structure attachment or another fixed point in the suspension structure, in a vertical direction to the first deflection pulley (first vertical section), then from the first deflection pulley in a horizontal direction to the second deflection pulley (horizontal section), and finally from the second deflection pulley in a vertical direction to the second side of the suspension structure (second vertical section) to the support structure attachment or another fixed point in the suspension structure.

[0026] Unlike the lifting devices used for normal operation, the installation lifting devices are not used to move the cabin, but solely to suspend it. At least one installation lifting device can be fixed to both sides of the suspension structure, for example, using the aforementioned lifting device attachments. The length of the installation lifting device thus corresponds to the span required to form the U-shape.

[0027] It is advantageous when the elevator car's pulleys can be selected such that each is designed for more than two load-bearing elements. The installation arrangement for suspending the elevator car during the installation phase can have two load-bearing elements, each assigned to a pulley. For example, the pulley for ropes can have a number of grooves corresponding to the number of load-bearing elements required for the final elevator in relation to the respective pulleys—that is, one groove per rope. For example, the pulley can have five grooves for five ropes. In this case, two load-bearing elements configured as ropes would engage with the pulley, and three grooves would remain empty.

[0028] The suspension structure of the installation arrangement can be a rigid suspension frame, which, for example, according to a simple variant, can have a single longitudinal support or, according to another variant, two longitudinally extending frame parts and frame parts running perpendicular to these in a rectangular configuration.

[0029] The suspension structure may include a longitudinal beam. This preferably horizontal longitudinal beam may extend from the first side, which is associated with one side of the cabin, to the second side, which is associated with the opposite side of the cabin. The longitudinal beam 2024P00181WÖ

[0030] - 7 - can connect the suspension points of the installation support devices for suspending the elevator car. Suspension point refers to the point or area on the suspension structure at which the installation support device is suspended.

[0031] If the suspension structure has a longitudinal beam, the mounting points for attaching the installation supports to the suspension structure can be located at the ends, or at least in the area of ​​the ends, of the longitudinal beam. The ends are located on one of the aforementioned sides.

[0032] Preferably, the longitudinal beam is designed to be telescopically adjustable to adapt to different cabin widths or depths.

[0033] The longitudinal beam can consist of a single profile, e.g., a steel beam with a C-profile or I-profile. Alternatively, the longitudinal beam can be a multi-section structure, which increases the range of applications and the variability of the installation arrangement. The components of the longitudinal beam can be, for example, box-shaped metal profiles.

[0034] It can be advantageous if the elevator car has two coaxial, but spaced-apart, deflection pulleys on each side of its underside. Furthermore, it can be advantageous if the suspension structure has two crossbeams, preferably connected at right angles and preferably centrally at the ends of the longitudinal beam, to provide two suspension points each for at least two installation support elements. The two crossbeams connected to the ends of the longitudinal beam can form a "T" shape on each side together with the adjacent longitudinal beam. If at least two, and particularly preferably exactly two, installation support elements are provided for each deflection pulley, this results in the installation arrangement having a total of four installation support elements.

[0035] For stable positioning in the elevator shaft, it can be particularly advantageous if two end pieces are attached to each of the two crossbeams, with mounting points for at least one installation support element attached to each end piece, thus creating a type of four-point suspension. 2024P00181WÖ

[0036] - 8 -

[0037] According to another embodiment of the installation arrangement, the suspension structure can be equipped with installation guide shoes, preferably designed as sliding guide shoes, for guiding the suspension structure together with the elevator car on guide rails already mounted in the elevator shaft. This practically eliminates any unwanted pendulum movement of the suspension structure. It can also be advantageous if each installation guide shoe is attached to one of the crossbeams and / or if the respective installation guide shoe is arranged in a space between each pair of end pieces.

[0038] The lifting device of the installation arrangement can preferably be a rope-based lifting device, wherein the rope-based lifting device has at least one drive which is designed as a rope pulling device, in particular as a rope-through winch.

[0039] It is particularly advantageous to integrate at least one drive unit of the lifting device into the suspension structure. This allows for a compact and easy-to-handle installation arrangement.

[0040] Particularly for heavy elevator cars, it can be advantageous for the lifting device to have two drives, one assigned to each side of the suspension structure. For example, one drive can be located at each end, or at least in the area of ​​the ends, of the longitudinal beam and connected to it. The drive can be mounted on the crossbeam. The drives can be controlled to operate synchronously, thus enabling uniform upward (and, if necessary, downward) movement on both sides, thereby preventing undesirable tilting of the suspension structure and consequently of the suspended elevator car.

[0041] From a procedural point of view, it is advisable to carry out the following steps to install a lift, particularly using an installation arrangement as described above:

[0042] Providing an elevator car in an elevator shaft, wherein the elevator car comprises a car roof and deflection pulleys on its underside, via which deflection pulleys the elevator car can be suspended from lifting means for subsequent normal operation of the elevator;

[0043] Inserting at least one installation support device into the elevator shaft and transferring it to 2024P00181WÖ

[0044] - 9 -

[0045] elevator car, so that at least one installation support element is guided around the deflection pulleys;

[0046] Connecting at least one installation support element to a suspension structure located in the area of ​​the cabin top;

[0047] Connecting the suspension structure to a lifting device;

[0048] Raising the elevator car by having the lifting device lift the elevator car suspended from the suspension structure above the at least one installation support element; and

[0049] Installation work is carried out by a person (or alternatively, if applicable, a robot) who is standing on the roof of the elevator car, while or after the elevator car has been raised a desired distance.

[0050] The elevator car advantageously corresponds to the final partial or complete elevator car, with which people and goods can be transported between floors in normal operation after completion of the elevator installation. The elevator car can be an elevator car with at least a fully assembled car floor and car roof serving as an assembly platform; the side walls can be added later, or after completion of the installation work in the elevator shaft, by a person standing on the car roof.

[0051] The at least one installation support element is advantageously a temporary component used only for installation. After completion of the installation work, which was carried out by the person standing on the cabin roof, the at least one installation support element can be removed. Similarly, the suspension structure and the lifting device are also advantageously removed. For normal operation, new support elements are used, with which the elevator car is suspended or can be suspended via the deflection pulleys and which are connected to a traction sheave driven by an electric motor.

[0052] Thanks to the suspension structure described above, the elevator car can be moved safely and reliably during installation. However, it would also be conceivable to forgo the suspension structure and suspend the elevator car for the installation phase in a manner similar to how it will be used in normal operation. In this case, the elevator car can be suspended from the underside of load-bearing elements. These load-bearing elements, for example, 2024P00181WÖ

[0053] - 10 - One or more steel cables can be connected on one side to a fixed point in the area of ​​the shaft head, in particular a fixed point located on the shaft ceiling. On the other side, a cable-pulling device, in particular a cable winch, can be provided with which the lifting elements can be driven and thus the elevator car moved upwards. The cable winch can be connected to a fixed point located on the shaft ceiling via a suspension. The counterweight would not yet be connected to the lifting elements during the installation phase and would remain stationary in the shaft pit.

[0054] Further individual features and advantages of the invention will become apparent from the following descriptions of exemplary embodiments and from the drawings. These show:

[0055] Fig. 1 shows a highly simplified representation of an elevator in a side view,

[0056] Fig. 2 shows a standard installation arrangement for the elevator from Fig. 1 in the same side view,

[0057] Fig. 3 shows a perspective view of an installation arrangement according to the invention for an elevator according to the second embodiment,

[0058] Fig. 4 is a perspective view of the installation arrangement from Fig. 3, but without the elevator car.

[0059] Fig. 5 shows a perspective and slightly enlarged view of a suspension structure of the installation arrangement, and

[0060] Fig. 6 shows a perspective detail view of part of the installation arrangement in the area of ​​the cabin top.

[0061] Fig. 1 shows a simplified representation of an elevator, designated as 1. The elevator 1 has an elevator car 3 (hereinafter also referred to as "car") that moves vertically up and down in an elevator shaft 2 of a building for transporting persons or goods. A 2024P00181WÖ is connected to the car via support means 30 and moves in the opposite direction to the car 3.

[0062] - 11 -

[0063] The counterweight 4 is movable up and down. The cabin 3 and the counterweight 4 are moved along vertical guides. The cabin 3 can have a cabin body and a support structure (not shown) for carrying the cabin body. The cabin body comprises a cabin floor 32, side walls, and a cabin ceiling 9.

[0064] The support means 30 for supporting the cabin 3 and the counterweight 4 can be a single rope or several ropes. Of course, other support means, such as belts, are also conceivable. The movable main components of the elevator system, i.e., the cabin 3 and the counterweight 4, which have pulleys, are connected to each other via the support means 30. The two pulleys 7, 8 assigned to the cabin 3 can each have one pulley, or, grouped together in pulley units, two or even more pulleys arranged coaxially side by side.

[0065] To move the cabin 3 and the counterweight 4, a drive with a traction sheave 31 is used to create a so-called machine-roomless elevator. This drive is shown, for example, installed in the area of ​​the shaft head of the elevator shaft 2. Of course, instead of a machine-roomless elevator system, the drive with the traction sheave 31 could also be located in a separate machine room in the area of ​​the shaft head.

[0066] The elevator 1 is designed in a 2:1 suspension configuration. The deflection pulleys 7, 8 associated with the car 3 are arranged on a support structure (not shown in the schematic representation of Fig. 1) for carrying the car body. The deflection pulleys 7, 8 are freely rotatable on axles (not shown here). Thus, for normal operation of the elevator, the car is evidently suspended from suspension elements 30 via the deflection pulleys 7, 8. The two deflection pulleys 7, 8 are arranged in the area of ​​the ends of the support structure, so that the suspension elements 30 running along the side walls are deflected by the deflection pulleys 7, 8 and run more or less parallel to the car floor 32 under the elevator car 3. The deflection pulley 6 is subsequently also referred to as the "first deflection pulley" and the deflection pulley 7 as the "second deflection pulley".Accordingly, for better understanding, the side with the first deflection pulley 7 will hereinafter also be referred to as the "first side" and the side with the second deflection pulley 8 will hereinafter also be referred to as the "second side".

[0067] Fig. 2 shows an installation arrangement labeled 10 for the previously described 2024P00181WÖ

[0068] - 12 -

[0069] Elevator 1 is shown. The installation arrangement 10, described in detail below, serves, for example, to install shaft material in elevator shaft 2. It is also conceivable to use the installation arrangement 10 to transport the traction drive upwards and then mount it just below a shaft ceiling.

[0070] The installation arrangement 10 for the elevator comprises the elevator car 3, a suspension structure 11 arranged in the area of ​​the upper side of the car, installation support means 5 connected to the suspension structure for suspending the elevator car 3, and a lifting device 12 for moving the elevator car 3 in the elevator shaft 2. The car roof 6 of the elevator car 3 is designed as an installation platform, allowing persons to carry out installation work in the elevator shaft 2 from the car roof.

[0071] The elevator car 3 of the installation arrangement 10 preferably corresponds to the final elevator car (Fig. 1), which will be used to transport people and goods between floors during normal operation after the elevator installation is complete. For installation, the elevator car 3 should at least include the car floor 32 or a support structure for carrying the car body and the fully assembled car roof to form the assembly platform. Furthermore, the elevator car 3 has two deflection pulleys 7, 8 arranged on the underside of the car, which are integrated into the car floor or the aforementioned support structure. The side walls of the elevator car 3 do not necessarily have to be present during the installation phase and can be installed later if required.

[0072] The suspension structure 11 is essentially designed as a rigid structural unit, for example, a rigid suspension frame, and extends horizontally from the first to the second side of the elevator car 3. The installation arrangement 10 further comprises at least one installation support element 5, formed by a rope or belt and connected to the suspension structure 11, for suspending the elevator car 3 via the pulleys 7, 8. The installation support element 5 extends vertically from the first side of the suspension structure 11 to the first pulley 7 (first vertical section), then horizontally from the first pulley 7 to the second pulley 8 (horizontal section), and finally vertically from the second pulley 8 to the second side of the suspension structure 11 (second vertical section), being fixed to both sides of the suspension structure 11.The installation support element 5 is thus designed to be immovable with respect to the suspension structure 11 and forms 2024P00181WÖ.

[0073] - 13 - a U-shape. The fixed points at which the installation support element 5 is fixed to the suspension structure 11 are symbolically indicated by thick dots in Fig. 2. The U-shaped installation support element 5 thus obviously consists of the two aforementioned vertical sections and the horizontal section that connects the two vertical sections. Another difference from the elevator support element (see Fig. 1) is that it is much shorter. The installation support element can, for example, often be less than 10 m long. In contrast, the length of the elevator support element can be several times the shaft height. In elevator systems for tall buildings, the support elements can be, for example, over 100 m long, in some cases up to 500 m or more.

[0074] With the lifting device 12, which in this exemplary embodiment is a rope-based lifting device, the person standing on the cabin roof 9 can be transported upwards to a desired position by actuating a control unit to activate the lifting device. From this position, they can carry out the necessary installation work. The lifting device 12 can include a rope-pulling device, in particular a rope-running winch 15, for lifting the elevator car 3 suspended from the suspension structure 11. The rope of the rope-running winch 15 is connected to a fixed point 27 in the area of ​​the shaft head, in particular a fixed point arranged on the shaft ceiling 26. The lifting device 12 can have at least one connecting or load hook or other connecting element for this purpose. The rope 13 can be attached to an anchor point to define the fixed point 27 by means of the connecting element.The counterpart to the connecting hook can be a loop or eyelet attached to the shaft ceiling 26.

[0075] Constructive details of an installation arrangement 10 for an elevator can be seen in Figures 3 to 6. Figure 3 shows an installation arrangement 10 with the suspension structure 11 located in the area of ​​the upper side of the cabin, a total of four installation support elements 5 connected to the suspension structure 11 and formed by cables for suspending the elevator cabin 3, and a lifting device 12 with two rope-running winches 15, 16 for moving the elevator cabin 3 in the elevator shaft 2.

[0076] The elevator car 3 has two coaxial, but spaced-apart, deflection pulleys 7, 7' on the first side and 8, 8' on the second side on each side of the underside of the car. 2024P00181WÖ

[0077] - 14 -

[0078] The deflection pulleys are provided with grooves for multiple load-bearing elements, with deflection pulleys 7, 7', 8, 8' being designed, by way of example, for five elevator load-bearing elements and consequently having five grooves on their outer circumference. The installation arrangement 10 clearly has only two installation load-bearing elements 5, 6 and 5', 6', respectively, each also formed by ropes, per deflection pulley. For cabins with a low overweight, a total of two installation load-bearing elements may suffice, i.e., one installation load-bearing element per deflection pulley. The elevator cabin 3 is guided on guide rails already installed in a lower shaft area by means of guide shoes (not shown). Counterweight guide rails, designated 34, are also visible in Fig. 3. The counterweight guide rails 34 are attached to the shaft wall by means of mounting brackets.These mounting brackets, the counterweight guide rails 34, and other shaft components can be installed by a person standing on the cabin roof 9. A balustrade (not shown), either rigid or movable (especially pivotable or extendable), can also be arranged on the cabin roof 9 to protect persons from falling into the shaft.

[0079] The suspension structure 11 has a horizontal longitudinal beam 20 extending from the first side to the second side, which connects the suspensions of the installation support elements 5, 6, 5', 6' for suspending the elevator car 3. These suspensions can include support element attachments located at the ends of the longitudinal beam 20. In the present embodiment, the suspensions are not attached directly to the longitudinal beam 20 itself, but rather to adjoining components at the ends of the longitudinal beam 20. The longitudinal beam 20 is designed to be telescopically adjustable to accommodate different car dimensions.

[0080] Figure 4, which shows the installation arrangement 10 without the elevator car, clearly illustrates that the four installation support elements 5, 6, 5', 6' form a U-shape. Such an installation arrangement 10 can be easily transported to an installation site, for example, using a delivery van or other transport equipment. It can be assembled without much effort and placed on top of a preferably pre-installed elevator car, so that the elevator car is ultimately suspended from the installation support elements.

[0081] Further details of the installation arrangement 10 can be seen in Fig. 5. The longitudinal beam 20 is a multi-part longitudinal beam, wherein it is composed of three support modules in a central area and has two 2024P00181WÖ on each of the side-facing areas.

[0082] - 15 - has elements that can be moved relative to each other and are telescopically slid into one another. Thanks to the telescopic longitudinal beam 20, the length of the beam can be adjusted easily and quickly. Depending on the size of the elevator car, the number of beam modules can be adjusted, which can significantly increase the variability of the installation arrangement. The components of the longitudinal beam 20 can, for example, be box-shaped metal profiles.

[0083] The suspension structure 11 further comprises two crossbeams 21, 22, which connect at right angles and centrally to the ends of the longitudinal beam 20, for providing two suspension points for two installation support elements 5, 5'; 6, 6' each. The respective crossbeams 21, 22, together with the adjacent longitudinal beam, form a "T" on each side. Two end pieces 23, 24 are attached to the ends of each of the two crossbeams 21, 22, and support element attachments 17 for forming suspension points for installation support elements 5, 5'; 6, 6' are attached to these end pieces 23, 24. The support element attachments 17 form fixed points for the installation support elements 5, which are described in more detail below.

[0084] The lifting device 12 has two drives 15, 16 designed as rope-guided winches, with each drive assigned to one side of the suspension structure 11. The two drives 15, 16 of the lifting device are integrated into the suspension structure 11, with the rope-guided winches 15, 16 each pivotally mounted on the crossbeams 21, 22. The ropes 13, 14 of the rope-guided winches 15, 16 could terminate at one or two fixed points on the shaft ceiling and be fastened there. In the present embodiment, ceiling suspensions 35, 36 with deflection pulleys for the ropes 13, 14 are arranged on the shaft ceiling, so that the ropes are guided upwards, deflected at the shaft ceiling, and finally guided downwards again to the suspension structure 11.The rope 13 of the rope-running winch 15 on the first side, indicated by dashed lines, is guided upwards to the ceiling suspension 35 and from there back to the suspension structure 11 on the other, or second, side, where the (not shown) connecting hook at the end of the rope is engaged in the coupling part 29, which has a hole. The coupling part 28 on the first side of the suspension structure 11 defines the point at which the rope 14 of the rope-running winch 16 assigned to the second side ends and is secured, for example, by engaging a connecting hook. The rope-running winches 15 and 16 are advantageously controlled in such a way that they operate synchronously, thus enabling uniform upward movement on both sides. 2024P00181WÖ.

[0085] - 16 -

[0086] The design of the suspension of the installation support elements on the suspension structure 11 is particularly evident from Fig. 6. A support element attachment and a support element end connection are provided for each installation support element 5, 5'; 6, 6', and the suspension is explained below using the installation support element 5 as an example. Depending on the dimensions of the elevator car and the pulleys, the installation support elements have a specific rope length, so that the installation arrangement consequently has two support element attachments and two support element end connections for each installation support element. The installation support element 5 is attached to the suspension structure 11, and more precisely, to the head section 23, via the support element attachments 17. The support element attachment 17 comprises a tie rod 19, which is guided through bores in the head section 23.A force storage element designed by a helical compression spring and supported on the head part 23 is arranged on the drawbar 12.

[0087] Furthermore, the end connector 18 is provided for connecting the cable-formed installation support element to the suspension structure 11. The end connector 18 is suspended from the corresponding support element attachment via the tie rod 12. End connectors are, for example, wedge locks. In these end connectors, a wedge is wrapped around the installation support element. The tensile load on the installation support element clamps the wedge in the wedge lock. During assembly, the cable of the installation support element is secured to the end connector with the wedge. Typically, a loop is formed in the cable for this purpose, and the installation support element is clamped in the end connector by the wedge, which exerts a clamping force on the cable so that it is pressed against the housing of the end connector and cannot slip out.End connections for the lifting element 18 can also include those in which the installation lifting element is wrapped around two wrapping elements. End connections for the lifting element can also comprise two wedges which are wrapped around the installation lifting element. The wrapping is S-shaped, so that the lifting element is clamped between the two wedges as well as between the wedges and adjacent housing walls. Furthermore, end connections for the lifting element with other wrapping elements are also known in the elevator industry, which can be used here as end connections for the installation lifting element. Wrapping elements can be, for example, rollers or pin-shaped elements, as known from EP 2 332 874 A1.

[0088] Fig. 6 clearly shows that the rope-through winch 15 is pivotably mounted on the crossbeam 2024P00181WÖ

[0089] - 17 -

[0090] The cable winch 15 is mounted on the crossbeam 21. The cable winch 15 is attached to a connecting plate 37, which is connected to the crossbeam 21 via a pivot bearing. The pivot axis and the pivoting range of motion are indicated by a corresponding dashed line and double arrow.

[0091] The elevator installation procedure can proceed as follows: An elevator car 3 is placed in an elevator shaft 2. The elevator car 3 should include a cabin roof 9 and pulleys 7, 8 on its underside, via which the elevator car 3 can be suspended from support elements 6 for subsequent normal operation of the elevator. Next, installation support elements 5, 5'; 6, 6' are brought into the elevator shaft 2 and guided to the elevator car 3, so that the installation support elements are guided around the pulleys 7, 8. Then, the installation support elements 5, 5'; 6, 6' are connected to a suspension structure 11 located in the area of ​​the upper side of the car. The suspension structure 11 can then be connected to the lifting device 12. The installation arrangement 10 is now ready for the actual installation.The elevator car 3 can be raised by the lifting device 12, which lifts the elevator car 3 suspended from the suspension structure 11 via the installation support means. During or after the elevator car 3 has been raised a desired distance, installation work can be carried out by a person standing on the roof 9 of the elevator car 3.

[0092] The last two steps are repeated until the elevator car reaches its highest position just below the shaft ceiling and all installation work accessible from the roof is complete. The temporary support structures can then be removed. The elevator's suspension system can now be installed and connected to the elevator car, traction drive, and counterweight to create a 2:1 suspension. Once the elevator installation is complete, people and goods can finally be transported between floors under normal operating conditions.

Claims

2024P00181WÖ - 18 - Patent claims 1. Installation arrangement for an elevator (1), wherein the elevator (1) comprises an elevator car (3) movable in an elevator shaft (2), the deflection pulleys (7, 8) arranged on the underside of the car, via which deflection pulleys (7, 8) the elevator car (3) can be suspended from support means (30), wherein the elevator car (3) has a car roof (6) designed as an installation platform, comprising - a suspension structure (11), - at least one installation support element (5, 6) formed by a rope or strap and connected to the suspension structure (11) for suspending the lift car (3), - a lifting device (12) by means of which the elevator car (3) suspended from the suspension structure (11) can be moved in the elevator shaft (2).

2. Installation arrangement according to claim 1, characterized in that the at least one installation support means (5, 6) is attached to the suspension structure (11) via support means attachments (17).

3. Installation arrangement according to claim 1 or 2, characterized in that the at least one installation support means (5, 6) is designed to be immovable with respect to the suspension structure (11) and forms a U-shape, extending from a first side of the suspension structure to a first deflection pulley (7), further from this first deflection pulley (7) to an opposite second deflection pulley (8) and finally from this second deflection pulley (8) to a second side of the suspension structure (11) opposite the first side.

4. Installation arrangement according to one of claims 1 to 3, characterized in that the deflection pulleys (7, 8) of the elevator car (3) are selected such that they are each provided for more than two support means (6), and that the installation arrangement for suspending the elevator car (3) during the installation phase has two installation support means (5, 6) each assigned to deflection pulleys (7, 8).

5. Installation arrangement according to one of claims 1 to 4, characterized in that the suspension structure (11) is a rigid suspension frame. 2024P00181WÖ - 19 - 6. Installation arrangement according to one of claims 1 to 5, characterized in that the suspension structure (11) has a longitudinal support (20).

7. Installation arrangement according to claim 6, characterized in that the longitudinal beam (20) is designed to be telescopically adjustable.

8. Installation arrangement according to claim 6 or 7, characterized in that the elevator car (3) has two coaxial, but spaced-apart deflection pulleys (7, 7', 8, 8') on each side of the underside of the car and that the suspension structure (11) has two crossbeams (21, 22) adjoining the ends of the longitudinal beam (20) to provide two suspensions each for at least two installation support means (5, 5'; 6, 6').

9. Installation arrangement according to claim 8, characterized in that on each of the two crossbeams (21, 22) two head parts (23, 24) are attached at the ends of the respective crossbeam (21, 22), on which head parts (23, 24) support element attachments (17) for at least one installation support element (5, 6) are attached.

10. Installation arrangement according to one of claims 1 to 9, characterized in that the suspension structure (11) is provided with installation guide shoes (25) preferably designed as sliding guide shoes for guiding the suspension structure (11) together with the elevator car (3) on guide rails (33) already mounted in the elevator shaft (2).

11. Installation arrangement according to one of claims 1 to 10, characterized in that the lifting device (12) is a rope-based lifting device, wherein it has at least one drive (15, 16) which is designed as a rope pulling device, in particular as a rope-through winch.

12. Installation arrangement according to claim 11, characterized in that the at least one drive (15, 16) of the lifting device (12) is integrated in the suspension structure (11).

13. Installation arrangement according to claim 11 or 12, characterized in that the lifting device (12) has two drives (15, 15), wherein one drive (15, 2024P00181WÖ - 20 - 16) is assigned to one side of the suspension structure (11).

14. Procedure for installing a lift (1) comprising the following steps: Providing an elevator car (3) in an elevator shaft (2), wherein the elevator car (3) comprises a car roof (9) and deflection pulleys (7, 8) on its underside, via which deflection pulleys (7, 8) the elevator car (3) can be suspended from suspension means (30) for subsequent normal operation of the elevator, Inserting at least one installation support element (5, 6) into the elevator shaft (2) and transferring it to the elevator car (3) so that the at least one installation support element (5, 6) is guided around the deflection pulleys (7, 8), Connecting the at least one installation support element (5, 6) to a suspension structure (11) located in the area of ​​the cabin top, Connecting the suspension structure (11) to a lifting device (12), raising the elevator car (3) by having the lifting device (12) lift the elevator car (3) suspended from the suspension structure (11), carrying out installation work by a person standing on the roof (9) of the elevator car (3).

15. Method according to claim 14, characterized in that after completion of the installation work, the at least one installation support means (5, 6) is removed again and, with regard to normal operation of the elevator (1), support means (30) are used with which the elevator car (3) is suspended via the deflection pulleys (7, 8) and which are connected to a traction sheave (31) driven by an electric motor.

Images