Method for installing a lift system

Abstract

The invention relates to a method for installing a lift system, in which a plurality of shaft modules (13, 14, 16, 17, 18) are provided, the shaft modules being prefabricated and provided to be placed on top of one another. The shaft modules are placed on top of one another such that a vertically extending lift shaft (12) is produced. Said plurality of shaft modules comprises a base module (16) forming one of the two lowermost shaft modules of the lift shaft (12), and a first intermediate module (18) provided for placing on the base module (16). When providing the base module (16) and the first intermediate module (18), lift components (40, 42) are arranged in the base module (16) and in the first intermediate module (18). A module reference system (44) is defined for both the base module (16) and the first intermediate module (18), the lift components (40, 42) being arranged in the base module (16) and in the first intermediate module (18) in a specified manner with respect to the relevant module reference system (44). The first intermediate module (18) is aligned on the base module (16) with respect to a shaft reference system (54) specified by the module reference system (44) of the base module (16).

Description

[0001] Procedure for installing an elevator system

[0002] The invention relates to a method for installing an elevator system according to the preamble of claim 1.

[0003] Installing an elevator system is complex and therefore associated with considerable costs. In particular, the construction of the elevator shaft for the elevator system, for example, during the construction of a building, and the subsequent installation of elevator components in the shaft are quite complex. Typically, the elevator shaft is first constructed entirely within the building housing the elevator system, and then the elevator system, along with its components such as the elevator car, counterweight, drive motor, and guide rails, is installed in the elevator shaft.

[0004] It has previously been proposed to construct the elevator shaft from several prefabricated shaft modules in which necessary elevator components, such as guide rail sections, are at least partially pre-assembled. In particular, prefabrication and pre-assembly are not carried out on the construction site of the building housing the elevator, but in a factory. The construction site is referred to below as the construction site, and the factory as the manufacturing site. This approach requires less time. It also has positive effects on the quality of the installation and the occupational safety of the installation personnel. The elevator components pre-assembled in the individual shaft modules must be aligned in a specified manner in the finished elevator shaft to ensure proper operation of the elevator system.The effort required to align the elevator components after the shaft modules have been placed together should be as low as possible.

[0005] WO 2020 / 245373 A1 describes a method for installing an elevator system, in which a plurality of prefabricated shaft modules with pre-installed elevator components in the form of guide rail sections are provided. The shaft modules are stacked on top of one another in such a way that the shaft spaces of the shaft modules are vertically aligned and form a vertically extending elevator shaft. An elevator car of the elevator system is arranged in the resulting elevator shaft in a vertically displaceable manner. The alignment of the shaft modules relative to one another is not discussed further. The object of the invention is therefore, in particular, to propose a method for installing an elevator system that enables simple installation of the elevator system. According to the invention, this object is achieved by a method having the features of claim 1.

[0006] The method according to the invention for installing an elevator system comprises at least the following method steps:

[0007] - Providing a plurality of shaft modules, wherein the shaft modules are prefabricated and are intended to be placed on top of one another and wherein each shaft module encloses a shaft space and

[0008] - Placing said shaft modules on top of one another in such a way that the shaft spaces of the shaft modules are aligned vertically and form a vertically extending elevator shaft in which an elevator car of the elevator system can be arranged in a displaceable manner.

[0009] The said plurality of shaft modules comprises a base module forming one of the two lowest shaft modules of the elevator shaft and a first intermediate module intended to be placed on the base module. When the base module and the first intermediate module are provided, elevator components are arranged in the base module and the first intermediate module. According to the invention, a module reference system is defined for each of the base module and the first intermediate module, wherein the elevator components in the base module and in the first intermediate module are arranged in a fixed manner relative to the respective module reference system. The first intermediate module is aligned on the base module with respect to a shaft reference system defined by the module reference system of the base module. The said elevator components can be elevator components assigned to the elevator shaft, wherein elevator components can in particular be guide rail sections and / or shaft doors.

[0010] The combination of aligning the elevator components arranged in the base module and the first intermediate module at the manufacturing site to the module reference system and aligning the first intermediate module to the shaft reference system makes it possible to arrange the elevator components in the shaft modules at the manufacturing site in such a way that after the shaft modules have been stacked, no or only very minimal alignment of the elevator components is necessary during the further installation of the elevator system. The elevator components can therefore be arranged in their final position or in a position that only slightly deviates from this position at the manufacturing site. In particular, it can be avoided that elevator components have to be removed and arranged in a new position after the shaft modules have been stacked. The effort required to install the elevator system is therefore very low and the installation very cost-effective.

[0011] In the following, directional information such as up, down and sideways or vertical and horizontal refers to the orientation of the respective component, in particular a shaft module or an elevator component, for example in the form of a guide rail section, when the shaft modules are stacked on top of one another. This orientation therefore corresponds to the orientation of the respective component in an operating state of the elevator system. The operating state of the elevator system is understood to be the state after installation has been completed and the elevator system has been put into operation. In the operating state, people and / or goods can be transported in the elevator car of the elevator system between floors of the building in which the elevator system is located.

[0012] Providing a shaft module here means that the shaft module is manufactured at the production site and then transported to the installation site. During production of the shaft module, prefabricated elements can be used at the production site, or the shaft module can be manufactured from scratch. At the production site, elevator components in particular are arranged, i.e. fixed, in the shaft module. Transport from the production site to the installation site is carried out primarily by truck. It is also possible for additional elevator components to be arranged in a shaft module at the installation site before or after the shaft modules are stacked on top of one another. It is also possible for individual shaft walls of the shaft modules to be manufactured at the production site and transported to the installation site.At the construction site, shaft modules can be assembled from the shaft walls, which are then stacked on top of each other. It is also possible for the shaft walls mentioned above to be placed individually or as a group onto a partially constructed elevator shaft, thus assembling the shaft modules. The shaft modules can be enclosed by shaft walls, which can be made of concrete or wood, for example. It is also possible for the shaft modules to be enclosed by a supporting structure, particularly made of metal. Combinations of the above-mentioned designs are also conceivable.

[0013] The elevator system can, in particular, also have a counterweight connected to the elevator car by means of a support element, for example, a rope or a belt. During operation of the elevator system, the support element, and thus the elevator car and the counterweight, can be moved in the elevator shaft formed by the shaft modules by means of a drive machine of the elevator system. It is also possible for the elevator system to have no counterweight. In this case, the elevator car is designed, in particular, as a self-propelled elevator car, for example, equipped with a friction wheel drive.

[0014] The aforementioned plurality of shaft modules comprises a base module and a first intermediate module designed to be placed on top of the base module. At the beginning of stacking the provided shaft modules, either the base module or a pit module forming a shaft pit is positioned as the lowest shaft module, particularly on a foundation of the aforementioned building. If a pit module is positioned first, the base module is placed on top of the pit module. The base module is characterized in particular by the fact that it comprises a door opening in which, in particular, a shaft door was arranged when the base module was first placed. The shaft door closes off the aforementioned door opening to the outside and, during operation of the elevator system, allows access to the elevator car if it is located at the door opening.Elevator components, such as buffers or guide rail sections, can also be arranged in the pit module during deployment.

[0015] The first intermediate module is then placed on top of the base module as the lowest intermediate module to form the elevator shaft of the elevator system. Subsequently, further shaft modules, either in the form of further intermediate modules or a top module that closes off the elevator shaft at the top, can be placed on top of the respective uppermost intermediate module until the elevator shaft has reached the intended height. The intermediate modules can, in particular, be constructed identically. It is also possible for the first intermediate module to close off the elevator shaft at the top, thus the first intermediate module also serves as the top module. The arrangement of the base module and the subsequent placement of the first intermediate module and any further shaft modules is carried out, in particular, using a crane.

[0016] A module reference system is defined for the basic module, and a further module reference system is defined for the first intermediate module. A module reference system is understood to be a coordinate system with an origin and three vertical axes, i.e., an x-axis, a y-axis, and a z-axis. The x- and y-axes run horizontally, and the z-axis vertically. This origin can be freely defined, but is defined in the same way for all shaft modules. For example, it can be set to a corner, such as the lower left corner of the shaft door of the respective shaft module. The elevator components arranged in the shaft modules during provision are arranged in a defined manner relative to the respective module reference system.The arrangement is specifically defined so that the elevator components are correctly aligned relative to each other when the shaft modules are stacked on top of each other, based on their functionality. For example, guide rail sections are arranged in the respective shaft modules so that they are aligned with each other when the shaft modules are stacked on top of each other.

[0017] It is possible to first define the module reference system and then arrange the elevator components in the shaft modules aligned with the module reference system. Alternatively, an elevator component, in particular the shaft door or at least one component of the shaft door, can first be arranged in the shaft module, thus defining the module reference system. Subsequently, additional elevator components, for example, in the form of guide rail sections, can be arranged in the shaft modules aligned with the module reference system and thus aligned with the already arranged elevator component, for example, the shaft door.

[0018] The module reference system of the base module defines a shaft reference system. The shaft reference system corresponds specifically to the module reference system of the base module. It can also be offset in a specified manner relative to the module reference system of the base module. The arrangement and orientation of the base module thus determine the orientation of the elevator shaft. The base module is therefore specifically aligned so that the x- and y-axes of its module reference system are horizontal and the z-axis is vertical.

[0019] The first intermediate module, mounted on the base module, is aligned with respect to the aforementioned shaft reference system. This specifically means that the x-axis of the module reference system of the first intermediate module is parallel to the x-axis of the shaft reference system, the y-axis of the module reference system of the first intermediate module is parallel to the y-axis of the shaft reference system, and the z-axis of the module reference system of the first intermediate module is collinear, i.e., aligned, with the z-axis of the shaft reference system.

[0020] The elevator shaft of the elevator system can be designed so that a single elevator car can be moved vertically within the elevator shaft. However, it is also possible for the elevator shaft to be designed so that more than one, for example two or three, elevator cars can be moved vertically next to each other and independently of each other. The elevator shaft can therefore be designed as a so-called single-shaft or as a multi-shaft. In the multi-shaft design, the shaft modules are designed in particular so that they are only stacked on top of each other to form the elevator shaft, i.e., shaft modules are not arranged next to each other. However, it is also conceivable for shaft modules to be arranged both next to each other and on top of each other to form the elevator shaft.In this case, it is advantageous if the module reference system of the first arranged basic module determines the shaft reference system of the entire elevator shaft, i.e. all shaft modules are aligned with respect to the module reference system of the said basic module.

[0021] In addition to the above-mentioned method steps, the method comprises in particular the further method steps of providing an elevator car and optionally a counterweight and arranging the elevator car and optionally the counterweight in the elevator shaft such that the elevator car and optionally the counterweight can be displaced vertically in the elevator shaft.

[0022] In an embodiment of the invention, the aforementioned plurality of shaft modules comprises a further intermediate module intended for placement on the first intermediate module. When the further intermediate module is provided, elevator components are arranged in the further intermediate module. A module reference system is also defined for the further intermediate module; the elevator components in the further intermediate module are arranged in a fixed manner relative to its module reference system, and the further intermediate module is aligned on the first intermediate module with respect to the shaft reference system.

[0023] The aforementioned plurality of shaft modules may comprise additional intermediate modules, each of which is placed on a subjacent shaft module in the form of an intermediate module and aligned with respect to the shaft reference system. The above statements for the first intermediate module also apply analogously to the further intermediate module and the additional intermediate modules.

[0024] In one embodiment of the invention, the module reference systems of the shaft modules are defined by two reference planes. This makes it particularly easy to define the module reference systems.

[0025] The reference planes mentioned run, in particular, through the respective shaft spaces of the shaft modules. Reference planes running along the interior walls of the shaft modules are also considered reference planes that run through the interior of a shaft module. Since the elevator components are fixed and arranged inside the shaft modules and thus in the respective shaft spaces of the shaft modules, the described definition of the module reference systems enables a particularly effective arrangement of the elevator components and a particularly precise alignment of the shaft modules.

[0026] The reference planes mentioned are defined, in particular, by the inside of a shaft wall containing a door opening and the inside of a side wall adjacent to this shaft wall. The relative positions of shaft doors, and thus the position of a shaft door in a shaft module, must be within narrow limits. Defining one of the reference planes mentioned by the inside of a shaft wall containing a door opening thus enables particularly precise positioning of the shaft door in the shaft module.

[0027] In one embodiment of the invention, before shaft components are arranged in a shaft module, markers defining the module reference system of the corresponding shaft module are arranged in the corresponding shaft module. In an alternative embodiment of the invention, after a first elevator component is arranged in a shaft module, a second elevator component is aligned with the first elevator component, and markers defining the module reference system of the corresponding shaft module are arranged in the corresponding shaft module aligned with the first elevator component. The aforementioned first elevator component is designed, in particular, as a shaft door or a guide rail section for the elevator car.

[0028] With the above-mentioned markers, the module reference system can be defined particularly precisely and reproducibly for the various shaft modules.

[0029] In particular, three markers are arranged in the corresponding shaft module, with one of the three markers being positioned at a different height than the other two. The arrangement of three markers clearly defines the module's reference system. More than three markers can also be arranged in a shaft module.

[0030] The markers can, for example, be designed as elements that can be aligned with particular precision to a laser beam. Such elements are also referred to as "laser targets." These elements can, for example, be designed as a small plate with a marking, for example in the form of a target cross, or a through-hole, which is particularly horizontally aligned. The plate can, for example, be made of metal or plastic, in particular translucent plastic. The markers can also be designed as rods or brackets, for example made of metal, with one end of the marker being usable as a support element for a guide line.

[0031] In one embodiment of the invention, a reference point is defined for each marker of the base module in the area of ​​a shaft floor of the elevator shaft. To align the intermediate modules, each intermediate module is aligned such that each marker of the respective intermediate module is aligned with its corresponding marker of the base module and its corresponding reference point. This enables particularly precise alignment of the shaft modules. For the aforementioned alignment of the markers of the intermediate module, a guide line or a laser is used, in particular.

[0032] In both cases, the base module is first aligned so that the module reference system of the base module, and thus the shaft reference system, is correctly aligned. This is the case when the z-axis runs as precisely as possible in the vertical direction and the x- and y-axes run as precisely as possible in a horizontal direction. Subsequently, a corresponding reference point is defined for each marker on the base module, particularly on the shaft floor, so that the reference point lies vertically below the marker.

[0033] It is possible for two markers to be arranged vertically above each other, i.e., along the z-axis. In this case, the corresponding reference points of these two markers lie on top of each other, or the two markers share a common reference point.

[0034] When using a guideline to align an intermediate module, for example, the guideline is attached to the reference point with a hook and the intermediate module is then aligned so that the guideline rests on both the corresponding marker of the base module and the corresponding marker of the intermediate module in the intended manner and, in particular, runs vertically.

[0035] When using a laser to align a marker on an intermediate module, for example, a laser is placed at the reference point and aligned with the corresponding marker on the base module. The laser then remains aligned unchanged throughout the rest of the installation. After aligning the laser, the corresponding marker on the base module is removed, and the intermediate module is aligned so that the laser beam hits the corresponding marker on the intermediate module at the intended location. It is also possible for the markers to have a hole so that, when the marker is correctly aligned, the laser beam passes through the hole and thus through the marker. This means that once the corresponding shaft module has been aligned, a marker does not need to be removed to align subsequent shaft modules.

[0036] It is possible for the described reference points to be gradually shifted upward as the installation progresses. This can be achieved, in particular, by using a marker position or the marker of an already installed intermediate module as the new reference point. 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 merely schematic and not to scale.

[0037] Showing:

[0038] Fig. 1 shows a lift system with a lift car in a lift shaft composed of four shaft modules in a side view,

[0039] Fig. 2 a snapshot of the placement of a top module on a not yet completed elevator shaft of an elevator system in a view from the front,

[0040] Fig. 3 a shaft module with a shaft door, two guide rail sections and three markers in a view from above,

[0041] Fig. 4 a reference point on a shaft bottom with a guide line fixed in the reference point in a view from the side,

[0042] Fig. 5 shows a marker that can be arranged on a shaft module for the use of a laser to align the shaft modules in a view from above and

[0043] Fig. 6 shows a marker that can be arranged on a shaft module for the use of a guide line to align the shaft modules in a view from above.

[0044] According to Fig. 1, an elevator system 10 has an elevator shaft 12 for a four-story building, which in the present embodiment is composed of four shaft modules in the form of a base module 14, a first intermediate module 16, a further, second intermediate module 17, and a top module 18. The elevator shaft 12 thus has a plurality of shaft modules, which comprise a base module 14 forming one of the two lowest shaft modules of the elevator shaft 12 and a first intermediate module 16 intended to be placed on the base module 14. Depending on the number of floors, the elevator shaft 12 can comprise additional intermediate modules 16, 17. The aforementioned shaft modules 14, 16, 17, 18 are prefabricated in a factory and thus at a production site and provided with elevator components. They are then transported to the construction site and thus to a production site and stacked on top of one another.The described pre-production, provision of elevator components and transport of the shaft modules 14, 16, 17, 18 can be referred to as a provision of the shaft modules 14, 16, 17, 18.

[0045] Each shaft module 14, 16, 17 and 18 encloses a shaft space 15. The shaft modules 14, 16, 17, 18 are placed on top of each other in such a way that the shaft spaces 15 of the chess modules

[0046] 15, 16, 17, 18 are vertically aligned and form the vertically extending elevator shaft 12, in which an elevator car 22 of the elevator system 10 is displaceably arranged. The base module 14 is higher than the intermediate modules 16, 17 and thus forms a shaft pit of the elevator shaft 12 in its lower region. The base module 14 is thus the lowest shaft module of the elevator shaft 12.

[0047] Fig. 2 shows how the top module 18 is placed from above onto the second intermediate module 17 by means of a crane 20. The second intermediate module 17 was previously placed onto the first intermediate module 16 in the same way, and the first intermediate module 16 was placed onto the base module 14 in the same way. The base module 14 was placed by the crane 20 onto a pit module 13, which stands on a foundation 11 of the elevator shaft 12. The pit module 13 forms a shaft pit of the elevator shaft 12. The base module 14 is thus the second lowest shaft module of the elevator shaft 12. The combination of base module 14 and pit module 13 in Fig. 2 is thus an alternative to the base module 14 in Fig. 1, which also forms the shaft pit. The pit module 13, the base module 14, the first intermediate module 16 and the second intermediate module 17 form an upwardly open, not yet finished elevator shaft, which is closed at the top by the addition of the top module 18.

[0048] The elevator system 10 of Fig. 1 also has the elevator car 22, which can be moved vertically in the elevator shaft 12 along guide rails not shown in Fig. 1 (see 40 in Figs. 2 and 3). The elevator system 10 has a suspension element 24, the first end 26 of which is fixed in the top module 18. It then runs around the bottom of the elevator car 22 and is guided by a drive machine 28 arranged opposite the first end 26 of the suspension element 24 in the top module 18. From there, it runs through a suspension of a counterweight 30 to its second end 32, which is fixed in the region of the drive machine 28. The drive machine 28 can move the suspension element 24 and thus the elevator car 22 in the elevator shaft 12. The elevator car 22 is connected via a hanging cable 34 to an elevator control 36 arranged in the top module 18. The hanging cable 34 provides power supply and communication with the elevator car 22.

[0049] The individual shaft modules can be enclosed by shaft walls, which can be made of concrete or wood, for example. However, it is also possible for the shaft modules to be enclosed by a supporting structure, particularly made of metal. The elevator shaft can also have only one intermediate module or more than two intermediate modules, with the individual intermediate modules being, in particular, identical in design.

[0050] Elevator components, in particular in the form of guide rail sections 40 and shaft doors 42 arranged in door openings 41 of the shaft modules, which are shown in Figs. 2 and 3, are arranged in the shaft modules 13, 14, 16, 17, 18 at the construction site. In addition, further elevator components can be arranged. Exceptions may be the pit module 13 and the top module 18, in which no or at least no guide rail sections and no shaft door are arranged. For example, buffers (not shown) can be arranged in the pit module 13, and the drive machine 28 can be arranged in the top module 18. In addition, further elevator components can be arranged in the shaft modules 13, 14, 16, 17, 18 at the construction site before the shaft modules 13, 14, 16, 17, 18 are stacked on top of one another.

[0051] In order to be able to arrange the elevator components in the shaft modules 14, 16, 17, 18 in the intended or correct positions, a module reference system 44 is defined for each of the base module 14, the intermediate modules 16, 17, and the top module 18. Each module reference system 44 has an origin 46, an x-axis x_M, a y-axis y_M, and a z-axis z_M. These axes run perpendicular to one another, with the x-axis and the y-axis running in a horizontal direction and the z-axis running in a vertical direction. For illustrative purposes, the origin 46 of the module reference systems 44 is shown outside the shaft modules in Figs. 2 and 3. The origin 46 is located specifically within the shaft modules.

[0052] The individual elevator components are arranged in a defined manner with respect to the respective module reference system 44, i.e., positioned relative to the module reference system 44. For example, guide rail sections 40 run parallel to the z-axis z_M and at defined distances in the x- and y-directions from the origin 46. The elevator components are arranged in the same manner, particularly in the shaft modules 13, 14, 16, 17, and 18, and thus in corresponding positions. For example, the guide rail sections 40 are arranged such that, when the shaft modules 13, 14, 16, 17, and 18 are stacked on top of one another, they are already well aligned with one another and can thus be easily assembled to form a continuous guide rail. The module reference systems 44 can be defined in different ways. The module reference systems of the shaft modules can be defined by two reference planes running through the respective shaft spaces 15 of the shaft modules 14, 16, 17, 18.The reference planes are defined in particular by an inner side 48 of a shaft wall having a door opening 41 and thus a shaft door 42, and an inner side 50 of a side wall adjacent to this shaft wall. The origin of the module reference system can be defined, for example, as the lowest point of an intersection line of the aforementioned reference planes or as the lower left corner of the shaft door of the respective shaft module.

[0053] In this case, the shaft modules are aligned so that the corresponding inner sides of the shaft modules form a plane as precisely as possible.

[0054] The module reference systems 44 can be defined by markers 52 arranged before the shaft components are arranged in the corresponding shaft module. The origin of one of the module reference systems can be defined by one of the markers 52. In particular, three markers 52 are used, with one of the markers 52 being arranged at a different height than the other two markers 52. The markers 52 can, for example, be arranged at the lower corners of the door opening of the shaft module and centrally at the upper edge of the door opening of the shaft module. One of the markers 52 can then also define the origin of the module reference system. Possible designs of the markers are discussed below in connection with Figs. 5 and 6.

[0055] Alternatively, after arranging a first elevator component, in particular the shaft door 42, in a shaft module, a second elevator component, in particular a guide rail section 40, is aligned with the first elevator component. Markers 52 defining the module reference system of the corresponding shaft module are then arranged in the corresponding shaft module aligned with the first elevator component, i.e., in particular, aligned with the shaft door 42. The above statements regarding the markers 52 apply accordingly.

[0056] When constructing the elevator shaft 12, first either the base module 14 or the pit module 13 is placed on the foundation 11, followed by the base module 14. The base module 14 is then aligned so that the x-axis x_M and the y-axis y_M of the module reference system 44 of the base module 14 run horizontally and in the desired direction, and the z-axis z_M of the module reference system 44 of the base module 14 runs vertically. The module reference system 44 of the thus aligned base module 14 defines a shaft reference system 54. In particular, the shaft reference system 54 corresponds to the module reference system 44 of the base module 14. Thus, the three axes x_M, y_M and z_M of the module reference system 44 correspond to the three axes x_S, y_S and z_S of the shaft reference system 54. The shaft reference system 54 can also be shifted relative to the module reference system 44 of the basic module 14.

[0057] After the described alignment of the base module 14, the first intermediate module 16 is placed on the base module 14, whereby it is aligned with the shaft reference system 54. The first intermediate module 16 is aligned such that the x-axis x_M or the y-axis y_M of the module reference system 44 of the first intermediate module 16 runs parallel to the x-axis x_S or y-axis y_S of the shaft reference system 54 and the z-axis z_M of the module reference system 44 of the first intermediate module 16 runs collinear with the z-axis z_S of the shaft reference system 54.

[0058] In order to be able to align the first intermediate module 16 easily, a reference point 56 is defined on the shaft floor 53 vertically below each marker 52 of the base module 14. In the example shown in Fig. 2, a laser 58 is used to align the first intermediate module 16. The markers 52 are then designed, for example, as shown in Fig. 5. The marker 52 according to Fig. 5 is designed as a small, thin and mainly square plate, in particular made of plastic, which is aligned horizontally when a shaft module is aligned. The marker 52 has a through-hole 60 in the center and can be arranged on a shaft module, for example on the base module 14, by means of a holder 62. Instead of the through-hole, the marker can also have a target cross.A reference point 56 assigned to a marker 52 is then determined such that a laser 58 is arranged below the marker 52 such that its laser beam 66 passes through the through-hole 60. The first intermediate module 16 is then aligned such that the laser beams 64 of the laser 58 also pass through the through-holes 60 of the markers 52 of the first intermediate module 16. The alignment of the second intermediate module 17 after it has been placed on the first intermediate module 16, as well as the alignment of further shaft modules, is carried out analogously. The alignment of the first intermediate module 16, as well as further shaft modules, can also be carried out using guide cords instead of lasers. For this purpose, a guide cord 66 is attached to a reference point 56, as shown in Fig. 4. The markers 52 are then designed, for example, as shown in Fig. 6. The marker 52 according to Fig.6 is designed as a small, thin, and primarily rectangular plate that is aligned horizontally when aligning a shaft module. The marker 52 can be arranged on a shaft module, for example on the base module 14, by means of a holder 62. At its end opposite the holder 62, the marker 52 has a contact element in the form of a narrow, outwardly open groove 68. A reference point 56 assigned to a marker 52 is then defined such that a guide line 66 running through the groove 68 of the marker 52 and secured in the reference point 56 runs vertically. The first intermediate module 16 is then aligned such that the guide lines 66 secured to the three reference points 56 also run through the grooves 68 of the markers 52 of the first intermediate module 16. The alignment of the second intermediate module 17 after it has been placed on the first intermediate module 16, as well as the alignment of further shaft modules, are carried out analogously.

[0059] It is possible that the reference points described above will be gradually shifted upwards as the installation progresses. This can be achieved, in particular, by using a marker position or the marker of an already installed intermediate module as the new reference point.

[0060] Finally, it should be noted that terms such as "having," "comprising," 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 of other embodiments described above within the scope of the claims. Reference signs in the claims are not to be considered as limitations.

Claims

Patent claims 1. Method for installing a lift system (10) comprising the following steps: - Providing a plurality of shaft modules (13, 14, 16, 17, 18), wherein the shaft modules (13, 14, 16, 17, 18) are prefabricated and are intended to be placed on top of one another and wherein each shaft module (13, 14, 16, 17, 18) encloses a shaft space (15) and - placing said shaft modules (13, 14, 16, 17, 18) on top of one another in such a way that the shaft spaces (15) of the shaft modules (13, 14, 16, 17, 18) are vertically aligned and form a vertically extending elevator shaft (12) in which an elevator car (22) of the elevator system (10) can be displaceably arranged, wherein - said plurality of shaft modules (13, 14, 16, 17, 18) comprises a base module (14) forming one of the two lowest shaft modules of the elevator shaft (12) and a first intermediate module (16) intended to be placed on the base module (14), and - when providing the basic module (14) and the first intermediate module (16), elevator components (40, 42) are arranged in the basic module (14) and in the first intermediate module (16), characterized in that - a module reference system (44) is defined for each of the basic module (14) and the first intermediate module (16), - the lift components (40, 42) in the base module (14) and in the first intermediate module (16) are arranged in a fixed manner relative to the respective module reference system (44) and - the first intermediate module (16) is aligned on the base module (14) with respect to a shaft reference system (54) defined by the module reference system (44) of the base module (14).

2. Method according to claim 1, characterized in that said plurality of shaft modules (13, 14, 16, 17, 18) comprises a further intermediate module (17) intended to be placed on the first intermediate module (16) and - when providing the further intermediate module (17) in the further intermediate module (17) elevator components (40, 42) are arranged, - for the further intermediate module (17), a module reference system (44) is also defined, - the elevator components (40, 42) in the further intermediate module (17) are arranged in a fixed manner relative to its module reference system (44), - the further intermediate module (17) is aligned on the first intermediate module (16) with respect to the shaft reference system (54).

3. Method according to claim 1 or 2, characterized in that the module reference systems (44) of the shaft modules (14, 16, 17, 18) are defined by two reference planes.

4. Method according to claim 3, characterized in that said reference planes extend through the respective shaft spaces (15) of the shaft modules (14, 16, 17, 18).

5. Method according to claim 4, characterized in that said reference planes are defined by an inner side (48) of a shaft wall having a door opening (41) and an inner side (50) of a side wall adjacent to said shaft wall.

6. Method according to claim 1 or 2, characterized in that before arranging shaft components (40, 42) in a shaft module (14, 16, 17, 18), markers (52) defining the module reference system (44) of the corresponding shaft module (14, 16, 17, 18) are arranged in the corresponding shaft module (14, 16, 17, 18).

7. Method according to claim 1 or 2, characterized in that after arranging a first elevator component (42) in a shaft module (14, 16, 17, 18), a second elevator component (40) is aligned with the first elevator component (42) and markers (52) defining the module reference system (44) of the corresponding shaft module (14, 16, 17, 18) are arranged in the corresponding shaft module (14, 16, 17, 18) aligned with the first elevator component (42).

8. Method according to claim 7, characterized in that said first elevator component (42) is designed as a shaft door.

9. Method according to claim 6, 7 or 8, characterized in that three markers (52) are arranged in the corresponding shaft module (14, 16, 17, 18).

10. The method according to claim 9, characterized in that at least one of the markers (52) is arranged at a different height than the other two markers (52).

11. Method according to claim 6 or 7, characterized in that in the region of a shaft floor (53) of the elevator shaft (12) a reference point (56) is defined for each marker (52) of the basic module (14) and, in order to align the intermediate modules (16, 17), each marker (52) of the respective intermediate module (16, 17) is aligned with respect to its corresponding reference point (56).

12. Method according to claim 11, characterized in that a guide line (66) or a laser (58) is used for said alignment of the markers (52) of the intermediate module (16, 17).

Images