EP3390263B1 - Method for constructing a lift facility - Google Patents

Description

The invention relates to a method for installing an elevator system in an elevator shaft of a building in its construction phase, in which method at least one lifting operation is carried out in order to adapt a usable lifting height of the elevator system to an increasing height of the building, in which a drive platform with an elevator drive machine and an elevator car hanging on the drive platform via at least one suspension means is lifted along at least one elevator car guide rail.

The invention further relates to an elevator installation which is created using this method.

In particular, the invention relates to a method for erecting an elevator system that can be adapted to an increasing building height, in which the counterweight track is arranged on the same side of the elevator car as one of the elevator car guide rails, and in the final state of the elevator system this elevator car guide rail is fastened to a plurality of guide rail holders enclosing the counterweight track.

From the FR 2 694 279 A1 is known an elevator system adaptable to an increasing building height, which is built in a shell enclosing an elevator shaft of a building. The elevator installation comprises a machine platform on which an elevator drive machine with a traction sheave is mounted. A suspension element is guided around this traction sheave, which leads on the one hand to the elevator car and on the other hand to a counterweight. In order to increase the lifting height of the elevator system, the machine platform can be raised together with the elevator car in the vertical direction along the guide rails of the elevator car. The lifting takes place with the aid of a hoist or a crane, the necessary extension of the suspension means being achieved by the suspension extension being fed from a supply roll. The machine platform can be supported at predetermined positions via four telescopic arms in the shaft walls of the elevator shaft by pushing the telescopic arms into suitable recesses. An elevator car guide rail and two counterweight guide rails are provided on the side of the elevator car on which the counterweight is arranged. These extend from the shaft floor to the retracted protective floor.

The purpose of out of the FR 2 694 279 A1 known invention is the use of a To reduce the construction crane by adapting the usable height of the elevator system from time to time to the increasing building height, so that certain transports required during the construction phase of the building can already be carried out with the elevator system. However, the specified solution can only be used if the width of the counterweight is so small that its counterweight track - as in the FIGS FR 2 694 279 A1 shown - can be arranged with a fastening element between a front wall or a rear wall of the elevator shaft and the counterweight-side elevator car guide rail. Otherwise, the elevator car guide rail mentioned could not be attached to the adjacent shaft wall. In addition, such a solution requires a suspension element arrangement in which the suspension elements are guided approximately from the center of the elevator car via the traction sheave to the counterweight which is offset with respect to the elevator car, which is only possible by arranging the suspension elements in a vertical plane lying at an angle to the elevator car.

From the US 2015/0034425 A1 an elevator arrangement according to the preamble of claim 1 is known. In this elevator arrangement, a lifting process can be carried out for the purpose of adapting a usable lifting height to an increasing height of the building, in which lifting process a drive platform, which carries a drive machine and an elevator car and a counterweight via flexible suspension means, is lifted along elevator car guide rails. A special arrangement of the suspension means of the elevator car and of the compensation traction means results in an optimal distribution of the supporting forces supporting the drive platform to support points in the elevator shaft wall or to guide rails supporting the drive platform.

The object of the invention is to provide a method for erecting an elevator system in an elevator shaft of a building, in which method a usable lifting height of the elevator system can be adapted to an increasing height of the building, and to specify an elevator system which is produced by this method, both the method and the elevator system do not have the disadvantages of the prior art mentioned. Specifically, it is an object of the invention to provide such a method and an elevator system produced using such a method, which enable a drive platform with an elevator drive machine of the elevator system to be guided on the elevator car guide rails of the elevator system, the counterweight carriageway being arranged on one side of the elevator car which is also one of the elevator car guide rails and which avoids the above-mentioned limitations existing in the prior art.

In the following, solutions for a corresponding method, for an elevator system that is produced with such a corresponding method, and for an elevator system that can be adapted to an increasing building height are presented. Advantageous, supplementary or alternative developments and refinements are also specified.

The object is achieved by a method for erecting an elevator system in an elevator shaft of a building, in which method at least one is used to adapt a usable lifting height of the elevator system to an increasing height of the building Lifting operation is carried out, in which lifting operation at least one drive platform, which carries an elevator drive machine and, via flexible suspension means, an elevator car and a counterweight, are lifted along at least one elevator car guide rail, the at least one elevator car guide rail being extended above the drive platform in the upward direction and in the area before the lifting process this extension is fixed to a shaft wall of the elevator shaft by means of at least one auxiliary carrier, and wherein after the lifting process the at least one auxiliary carrier which is then located below the drive platform is replaced by a final guide rail holder designed differently from the auxiliary carrier.

In the present description and the patent claims, the term “shaft wall” is to be understood to mean any type of lateral limitation of the elevator shaft on which components of the elevator system can be fixed. In particular in the case of elevator shafts arranged next to one another or in the case of elevator shafts arranged outside a building, shaft walls can for example consist only of steel girders.

With the method according to the invention it is achieved that a drive platform can also be raised along the elevator car guide rails if parts of the drive platform would collide with guide rail holders arranged above the drive platform in their final embodiment. This applies in particular to elevator systems in which the elevator car interacts with a counterweight, which is arranged on the same side of the elevator car as one of the elevator car guide rails, and whose horizontal cross section shows the arrangement of the counterweight - viewed in the direction of the elevator car depth - in front of or behind the one arranged laterally Elevator car guide rail not allowed.

Another solution to the problem consists in an elevator installation which is produced using the method just mentioned.

The term "emerging counterweight roadway" used in the following is intended to express that the counterbalance roadway that can already be used is gradually extended upwards by mounting further guide rail brackets and fastening the counterweight guide rails to them. The term "counterweight roadway" is also used simply because it results from the context whether the part that is already usable or the part that is being created is meant.

Usually, an elevator installation in which the counterweight track is arranged on the same side of the elevator car as one of the elevator car guide rails, comprises a plurality of guide rail holders, each with at least two support elements projecting at right angles to a shaft wall into the elevator shaft and a cross member, the support elements and the cross member of each guide rail holder form a frame lying in a horizontal plane and at least partially enclosing the counterweight roadway. The guide rail holders are fixed in place on a shaft wall of the elevator shaft. Vertical distances are provided between the individual guide rail holders, which are more or less regular depending on the structural conditions. A counterweight guide rail can then be attached to each of the two supporting elements of a guide rail holder, and an elevator car guide rail can be attached to the cross member. In the case of an elevator installation with a drive platform which can be raised, the drive platform can be designed such that it would collide with such conventional guide rail holders during a lifting operation. Before a lifting process, the at least one elevator car guide rail above the drive platform is therefore extended in the upward direction and temporarily fixed to the counterweight-side shaft wall in the region of this extension by means of at least one auxiliary support. The at least one auxiliary carrier ensures the stability of the elevator car guide rail newly mounted above the drive platform before the lifting process, and on the other hand it is designed such that - in contrast to a conventional guide rail holder - it does not hinder the lifting movement of the drive platform during a lifting process. The temporary replacement of the usual guide rail holders above the drive platform by at least one auxiliary carrier makes it possible to guide the drive platform and the elevator car during the lifting process on the part of the elevator car guide rail that extends above the drive platform and thus above the final guide rail holders before the lifting process . It goes without saying that several auxiliary carriers can be used here, which after their respective disassembly are used again for a further lifting operation, ie H. above, can be used. Even after the elevator system has been completely erected, the auxiliary carriers can be used for a next elevator system to be erected, so that the use of such auxiliary carriers does not cause significantly higher material costs.

In a possible embodiment variant of the method according to the invention, the auxiliary carrier is designed in such a way that it does not form an obstacle to movement for the entire drive platform in the installed state during the lifting process.

The term “entire drive platform” is to be understood here as the drive platform with all the components attached to it, in particular with the suspension element rollers and the drive pulley mounted on the drive platform.

With this embodiment variant it is achieved that in an elevator system with a liftable drive platform, which is designed in such a way that it would collide with the usual guide rail holders arranged above the drive platform, a lifting process for adapting the usable lifting height, i. H. lifting of the drive platform along the at least one elevator car guide rail is made possible at all.

In a further possible embodiment variant of the method, the counterweight is moved along a vertical counterweight track which is arranged on the same side of the elevator car as the elevator car guide rail, which is fixed to at least the final guide rail holder mentioned, the suspension means between the elevator car and the counterweight via a Traction sheave of the elevator drive machine and at least one deflection roller supported on the drive platform, and wherein at least the deflection roller or the drive sheave is arranged such that it protrudes into the counterweight roadway.

Compared to the prior art, this means that the method for adapting the usable lifting height can also be used in an elevator installation in which the elevator car interacts with a counterweight which is arranged on the same side of the elevator car as one of the elevator car guide rails, the counterweight has a horizontal cross section which does not permit the arrangement of the counterweight - viewed in the direction of the elevator car depth - in front of or behind the laterally arranged elevator car guide rail.

In a further possible embodiment variant of the method, the final guide rail holder comprises a first support element and a second support element, which are fixed to the shaft wall on opposite sides of an emerging counterweight roadway and protrude into the elevator shaft before or after the lifting process at approximately the same height. To complete the final guide rail holder, a cross member that does not extend through the counterweight roadway that is created is integrated into the guide rail holder by the cross member at one end with an end of the first support element that projects into the elevator shaft and at its other end End is connected to an end of the second support element protruding into the elevator shaft.

This ensures that after the lifting process the elevator car guide rail can be connected to the then mounted cross member, so that there is an indirect connection between the elevator car guide rail and the two support elements and thus between the elevator car guide rail and the shaft wall via the cross member. The final guide rail bracket consisting of the support elements and the cross member then encloses the counterweight track together with the shaft wall, the final guide track bracket - in contrast to the temporarily mounted auxiliary bracket - allowing unhindered vertical travel of the counterweight along the counterweight track. With such a final guide rail holder, a stable fixation of an elevator car guide rail arranged on the side of the counterweight carriageway is ensured.

In a further possible embodiment variant of the method, the at least one auxiliary support is fixed directly or indirectly to the shaft wall above the drive platform before the lifting process in such a way that it extends at least partially through the resulting counterweight roadway and does not hinder the lifting process of the drive platform, and after the lifting process the at least one subcarrier then located below the drive platform is disassembled and replaced by a final guide rail holder, the components of which, however, are at least partially arranged outside the resulting counterweight roadway within the vertical projection of the entire drive platform.

By using a method with this method step, the present task can be solved in a simple manner for many embodiments of elevator systems with an adaptable usable lifting height.

In a further possible embodiment variant of the method, two support elements assigned to a guide rail holder are fixed to the shaft wall above the drive platform before a lifting operation, a counterweight roadway extending between these support elements, and before the lifting operation, the at least one auxiliary support is temporarily indirectly or directly on the shaft wall fixed, wherein the auxiliary carrier extends at least partially through the resulting counterweight roadway, and the elevator car guide rail is up to the auxiliary carrier before the lifting process Extended at the top and temporarily attached to the auxiliary support in the area of its extension, and after the lifting process, a cross member that does not extend through the resulting counterweight roadway is integrated into the final guide rail holder, the elevator car guide rail is attached to this cross member and the auxiliary support is removed. The assembly of the support elements of the final guide rail brackets together with the associated auxiliary supports is easier to carry out before a lifting process and above the drive platform because of the better accessibility than after the lifting process below the drive platform. In addition, the jointly possible alignment of the support elements and the auxiliary supports saves assembly time.

In a further possible embodiment variant of the method, at least the drive platform with the elevator drive machine is lifted along the elevator car guide rail during the lifting process, the drive platform being guided on a part of the elevator car guide rail that is temporarily mounted on the auxiliary carrier. It goes without saying that, in addition to the elevator car guide rail, which is attached to the auxiliary carrier before and during the lifting process and to the final guide rail holder after the lifting process, there is generally at least one further elevator car guide rail. Such a further elevator car guide rail can in particular be fastened to that shaft wall which is opposite the shaft wall on which the counterweight track is arranged. In addition, it is advantageous that at least during the lifting process both the drive platform and the elevator car or the counterweight are raised and at least guided on the elevator car guide rail, which is temporarily mounted on at least one auxiliary carrier. For example, during the lifting process, the elevator car can be coupled to the drive platform and raised together with it. Advantageously, the counterweight remains supported in its lowermost position during the lifting process. The lengthening of the suspension means required in this process takes place in that a corresponding length of suspension means is fed in at the counterweight-side fixed point of the suspension means, this being rolled off by a suspension means reserve unit. Of course, the fixing of the suspension means at the counterweight-side fixed point is released before this process and created again after the lifting process. Said suspension element reserve unit can, for example, be mounted on a shaft floor.

In a further possible embodiment variant of the method, the first support element and the second support element of the final guide rail holder are at least mounted approximately at the same height on opposite sides of the counterweight carriageway in the elevator shaft, a first counterweight guide rail being connected to the first support element and a second counterweight guide rail to the second support element, and a counterweight hanging from the suspension means together with the elevator car on the drive platform is guided on the first counterweight guide rail and the second counterweight guide rail. In this embodiment, the counterweight guide rails can be mounted on the support elements of the guide rail holders before the lifting process, and they remain mounted accordingly even after the lifting process.

In a further possible embodiment variant of the method, the auxiliary carrier is temporarily or indirectly attached to the shaft wall in such a way that it extends essentially horizontally from the shaft wall of the elevator shaft through a central region of the counterweight carriageway being created into the elevator shaft.

This has the advantage that two spaces of approximately the same width are available on both sides of the auxiliary support within the counterbalance track, within which spaces each suspension element can be guided to the counterweight. When lifting the drive platform, larger vibrations of the suspension elements and contact between the suspension elements can be prevented by the separate rooms.

In a further possible embodiment variant of the method, at least the extensions of the elevator car guide rails required above the drive platform and the temporary supports serving to temporarily fix the extension of the elevator car guide rails arranged on the counterweight side of the elevator car are assembled from a temporarily installed, liftable and lowerable assembly platform above the drive platform.

This has the particular advantage that the components mentioned can be installed without the fitters being exposed to a risk of falling.

In a further possible embodiment variant of the method, the suspension means are extended during the lifting process, the extensions of the suspension means being supplemented or rolled off by a suspension means reserve unit in accordance with the additional length requirement caused by the new usable lifting height.

This method step avoids the need to replace the suspension elements after each adjustment of the usable lifting height of the elevator system.

In a further possible embodiment variant of the method, after the lifting process, the guide rail holders below the drive platform are brought into their final state by attaching their crossbeams, the crossbeams are connected to the elevator car guide rail arranged on the counterweight side of the elevator car, and the subcarriers also lying below the drive platform after the lifting process disassembled.

In a further possible embodiment variant of the method, the attachment of the cross beams, the connection of the cross beams to the elevator car guide rail arranged on the counterweight side of the elevator car, and the dismantling of the auxiliary beams - after the lifting process has been completed or after the elevator system has been restarted - by one from the roof of the drive platform hanging, controlled vertically movable elevator car made by an operating fitter.

In this way, the problem is solved of being able to carry out the aforementioned method steps safely below the drive platform.

With the elevator system, vertical transportation of people, goods and other materials can thus be made possible even during an early construction phase. Here, the installation can be carried out in the elevator shaft which is gradually built up in height in accordance with the construction progress. This enables fast, reliable and safe vertical transport in all weather conditions at an early stage. In particular, the elevator system can be used from the start of construction to permanent installation. Among other things, this enables the floors to be completed, rented and occupied to a certain extent from the bottom up when the building is partially completed. Especially in the case of extensive high-rise projects for private and / or commercial use, this results in a significant improvement in cost-effectiveness and a significantly more advantageous first occupancy period.

Fig. 1

eine einer zunehmenden Gebäudehöhe anpassbare Aufzugsanlage in einem Aufzugsschacht eines Gebäudes in einer schematischen Darstellung entsprechend einem Ausführungsbeispiel der Erfindung;

Fig. 2

die in Fig. 1 gezeigte Aufzugsanlage in einer schematischen Darstellung aus der mit II bezeichneten Blickrichtung;

Fig. 3

eine Detaildarstellung der Aufzugsanlage vor dem zur Anpassung an die Gebäudehöhe erforderlichen Hubvorgang im Aufriss.

Fig. 4

die Detaildarstellung gemäss Fig. 3 im Grundriss

Fig. 5

eine Detaildarstellung der Aufzugsanlage nach dem zur Anpassung an die Gebäudehöhe erforderlichen Hubvorgang im Aufriss.

Fig. 6

die Detaildarstellung gemäss Fig. 3 im Grundriss

Embodiments of the invention are explained in more detail in the following description with reference to the accompanying drawings. Show it:

Fig. 1

an elevator system adaptable to an increasing building height in an elevator shaft of a building in a schematic representation according to an embodiment of the invention;

Fig. 2

in the Fig. 1 shown elevator system in a schematic representation from the viewing direction designated II;

Fig. 3

a detailed representation of the elevator system before the lifting process required to adapt to the building height in the elevation.

Fig. 4

the detailed representation according to Fig. 3 in the floor plan

Fig. 5

a detailed representation of the elevator system after the lifting process required to adapt to the building height in the elevation.

Fig. 6

the detailed representation according to Fig. 3 in the floor plan

Fig. 1 shows an elevator system 1 in an elevator shaft 2 of a building that can be adapted to an increasing building height in a schematic representation according to an exemplary embodiment of the invention. Fig. 2 shows the in Fig. 1 Elevator system 1 shown from the in Fig. 1 with II marked viewing direction. The elevator shaft comprises two in Fig. 1 visible shaft walls 10, 11 and two in Fig. 2 visible shaft walls 12, 13.

An elevator system 1 is adapted to a newly reached greater height of a building under construction essentially by a drive platform 14 temporarily fixed in the elevator shaft 2, on which an elevator car 18 and a counterweight 28 are lifted by means of suspension means (19, 19 ') - Suspended and lowered, raised to a higher building level in the course of a lifting operation and temporarily fixed there again, the effective length of the suspension means being adapted to the new lifting height during the lifting operation, and the elevator system subsequently being put into operation again. When the intended maximum height of the elevator installation 1 has been reached, the drive platform 14 can, if provided, be permanently fixed as a machine room floor.

In Fig. 1 floors 4A to 4G, or floors 4A to 4G in this regard, are shown by way of example. In reality, a large number of such floors can arise during the construction of the building. The floor 4G, which here temporarily represents the top floor and is possibly only partially erected, is used here to support a shaft roof 3, which protects the elevator shaft 2 from the weather and any objects falling down.

The elevator installation 1 is described below with reference to FIG 1 and 2 explained further. The elevator installation 1 has the drive platform 14, which has an elevator drive machine 15, a support device 16 for supporting the drive platform 14 in the elevator shaft and includes a canopy 17. The drive platform 14 with the elevator drive machine 15 is supported on the building via the support device 16, the support device 16 being supported on the one hand in the recess 8 of the shaft wall 10 and on the other hand on the floor 4C. The canopy 17 serves, among other things, to protect against falling objects.

The elevator installation 1 further comprises an elevator car 18 and a counterweight 28 which hang on the drive platform 14 via suspension means 19, 19 'and via these suspension means through the elevator drive machine 15 along two elevator cabin guide rails 41, 42 or two counterweight guide rails 38, 39 and can be moved from. To simplify the presentation, the 1 and 2 the elevator car guide rails 41, 42 are shown by dashed lines and the counterweight guide rails 38, 39 by dash-dot lines. The suspension elements 19, 19 'are guided vertically upwards from a suspension element reserve unit 20 to deflection rollers 21 which are mounted on the drive platform 14. From these deflecting rollers 21, the suspension elements 19, 19 'extend vertically downward through a first suspension element fixing device 22 installed on the drive platform as far as to the cabin support rollers 23, 24 connected to the elevator car 18. The suspension elements 19, 19' are connected to the elevator support rollers 23, 24. passed under the elevator car 18. The suspension means 19, 19 'then extend vertically upwards and run around deflecting rollers 25, a traction sheave 26 of the elevator drive machine 15 and deflecting rollers 27, 27'. By means of the deflection rollers 27, 27 ', the suspension means 19, 19' are deflected to the counterweight track 44 and guided vertically to the counterweight support rollers 29, 29 'connected to the counterweight 28, they run around and finally extend to a second suspension means fixing device 30, where they are connected to the Drive platform 14 are connected.

In the area of the upper end of the elevator shaft, on the level of floor 4F, a lifting device 6 is arranged, which has been lifted there before by a lifting process by means of a further lifting device or by means of a construction crane. The lifting device 6 is used to lift the entire drive platform 14 with the elevator car 18 attached thereto and the counterweight 28 to a new level adapted to the current building height during a lifting operation via a traction means 6.1. It is mounted on a support frame 5, which is supported in a recess 7 of the shaft wall 10 and on the floor 4F. In this exemplary embodiment, further niches 8, 9 are provided on the shaft wall 10, which can be used to support system components. Instead of the niches 7, 8, 9 there are also other possibilities Support conceivable, for example on support elements attached to the shaft wall 10. Furthermore, instead of the support on the floors 4A to 4F, support can also be provided on support elements which are fixed to the shaft wall 11 opposite the shaft wall 10.

When the elevator car 18 and the counterweight 28 are suspended from the drive platform 14 as described above, the length of the suspension means 19, 19 ′ that can be used for the operating stroke of the elevator cabin 18 can be extended from the suspension means reserve unit 20 if this is done in the course of an adjustment to the usable one Lifting height carried out is required. For this purpose, the suspension elements 19, 19 'can be clamped or released by means of the first suspension element fixing device 22. Before a lifting operation, for example, the counterweight 28 is set down in the lower region of the elevator shaft 2, the elevator car 18 is fixed to the drive platform 14, the brake of the elevator drive machine 15 is released and the suspension means fixing device 22 is released. If during the subsequent lifting process the drive platform 14 with the elevator car 18 is raised by the lifting device 6, the suspension element extensions required for this are pulled out of the suspension element reserve unit 20. However, other types of suspension of the elevator car 18 and the counterweight 28 as well as other types of tracking of the suspension means 19, 19 'can be implemented.

Before a lifting process in which the drive platform 14 is raised by the lifting device 6, the lifting device 6 must be positioned and fixed sufficiently high, for example by means of a further lifting device or a construction crane, for example 3 floors above the drive platform 14. The drive platform 14 can then be raised to a desired position in the elevator shaft 2 and supported there. The drive platform 14 is then, for example, two floors above the floor 4C on which it is located in the 1, 2 initial state shown was positioned. After the lifting process, the drive platform 14 is thus on the floor 4E, being supported on the one hand on the floor 4E and on the other hand in the recess 9 of the shaft wall 10. During a lifting process, however, it can also be raised by several floors if the construction progress is correspondingly large. Furthermore, it goes without saying that the stroke of the drive platform 14 during a lifting operation is not necessarily limited to an integer multiple of a floor height.

From the 1 and 2 it can be seen that between the canopy of the drive platform 14 and the supporting frame 5 of the lifting device 6, a mounting platform 32 is temporarily installed, which can be raised and lowered by means of a lifting device 33 that can be controlled from the mounting platform by means of a traction means 33.1. This assembly platform 32 serves mainly as a working platform, from which the extensions of the counterweight guide rails 38, 39 and the elevator car guide rails 41, 42 required above the drive platform 14, and for temporarily fixing the extension of the elevator car guide rail 41 arranged on the counterweight side of the elevator car, are used Subcarrier 43 are mounted. The purpose and mode of operation of these auxiliary carriers 43 are explained below1.

Before and after a lifting operation, assembly steps are carried out to create or extend the guide rails of the counterweight 28 and the guide rails of the elevator car 18 and thus the liftable drive platform 14. These assembly steps are also below with reference to the 3 to 6 further described.

In the operating state, the elevator installation 1 has a multiplicity of guide rail holders 35. 1 to 35.9, which are attached to the shaft wall 12 in this exemplary embodiment, and which in their final state both for fixing two counterweight guide rails 38, 39 and for fixing the on the Serve counterweight side of the elevator car 18 arranged elevator car guide rail 41.

In Fig. 3 (Elevation) and Fig. 4 (Floor plan) shows a final guide rail holder 35.5 arranged below the drive platform 14 in connection with parts of the drive platform 14 protruding into the counterweight track 44. The final guide rail holder 35.5 has support elements 36, 37, the support element 36 here being referred to as the first support element 36 and the support element 37 here as the second support element 37. The support elements 36, 37 are designed, for example, as an L-angle and are attached to the shaft wall 12 of the building. A first counterweight guide rail 38 is fastened to the first support element 36. A second counterweight guide rail 39 is fastened to the second support element 37. In the final state, the guide rail holder 35.5 also has a cross member 40 connected to the support elements 36, 37, to which the elevator car guide rail 41 arranged on the counterweight side of the elevator car 18 is fastened.

From the 3 and 4 It can be seen that the drive platform 14 comprises components protruding into the counterweight carriageway 44 - in particular the deflection rollers 27, 27 'with their bearings and the parts of the drive platform 14 supporting them - which in an elevator system 1 with an elevator car guide rail 41 arranged on the counterweight side of the elevator car 18 serve to guide the suspension means 19, 19 'in such a way that they subsequently move vertically, ie parallel to the counterweight track 44, to the counterweight support roller 29 (not visible in FIG 3, 4 ) extend. Since these components protruding into the counterweight track 44 - which in another embodiment of the elevator system may also be in the form of a traction sheave of the drive machine - cannot be avoided, it is imperative that the drive platform 14 not be attached to the final guide rail brackets 35.1-35.9 with the cross member 40 installed can be lifted over.

The solution to this problem is that before the lifting process, the counterweight-side elevator car guide rail 41 is extended in the upward direction above the drive platform 14 and in the area of this extension is fixed to a shaft wall 12 of the elevator shaft 2 by means of at least one auxiliary support 43, and that after the lifting process it is then below the at least one auxiliary carrier 43 lying on the drive platform 14 is replaced by a final guide rail holder 35.1-35.9 designed differently than the auxiliary carrier.

The in the 1 and 2 The final guide rail brackets 35.1-35.5 shown below the drive platform 14 are therefore only assembled or brought into their final state by attaching the cross members 40 after the drive platform 14 has passed them in the course of a lifting process. This is preferably carried out after the lifting process has ended or after the elevator installation has been restarted by a fitter operating from the roof of the vertically controllable elevator car 18. The in the 1 and 2 Non-final guide rail brackets 35.6-35.9 shown above the drive platform 14 can advantageously - but do not have to - be installed together with the aforementioned auxiliary supports 43 from the assembly platform 32 described above before a lifting operation. These non-final guide rail brackets 35.6-35.9 differ from the final guide rail brackets 35.1-35.5 in that their cross members 40 have not yet been installed.

Fig. 5 (Elevation) and 6 (floor plan) show the drive platform 14 with its - as in connection with the - in a situation existing before a lifting process 3 and 4 described - deflecting rollers 27, 27 'projecting into the counterweight roadway 44. Above the Drive platform 14 is one of several auxiliary supports 43 which are temporarily attached to shaft wall 12 above drive platform 14 and are designed such that they can protrude into said drive platform between said deflection rollers 27 and 27 'as far as the counterweight-side elevator car guide rail 41 without the upward movement of the To hamper drive platform 14 during the lifting process. The auxiliary supports 43 must be designed to be sufficiently stable in order to be able to fix the elevator car guide rail 41 sufficiently at least during the lifting process. Furthermore, in Fig. 6 one (35.6) of a plurality of guide rail brackets 35.6-35.9 only partially mounted above the drive platform 14 is shown, which guide rail brackets only comprise the support elements 36, 37 fastened to the shaft wall 12. These support elements are in the assigned elevation ( Fig. 5 ) not visible, because covered by subcarrier 43. The extensions of the counterweight guide rails 38, 39 have advantageously been fixed to these support elements 36, 37 before the lifting process. Both the support elements 36, 37 of the guide rail holder 35.6-35.9 and at least one auxiliary support 43 have preferably been installed from the lifting and lowering mounting platform 32. If one of the subcarriers - e.g. B. 43.6 in Fig. 1 - or one of the guide rail brackets - e.g. B. 35.6 in Fig. 1 - To be installed in the area of the drive platform 14 from the mounting platform 32 so that it cannot be reached, this can be done from the drive platform 14. The auxiliary supports 43 are arranged approximately centrally between the support element parts 36, 37 of the guide rail holders 35. The exact position of the auxiliary carrier 43 results from the predetermined position of the elevator car guide rail 41. The extension of the counterweight-side elevator car guide rail 41, which extends upward from the drive platform 14, is connected to the shaft wall 12 via the auxiliary carrier 43. Another elevator car guide rail 42, which in the 1 and 2 is shown schematically by the dashed line 42, is also extended upwards before the lifting process. Both this extension and the attachment of the second elevator car guide rail 42 to the shaft wall 13 can likewise be carried out from the lifting and lowering mounting platform 32.

To carry out the lifting process, the drive platform 14 with the elevator car temporarily connected to the latter is raised by the lifting device 6 via the traction means 6.1. At the same time, additional suspension element will be released by the suspension element reserve unit 20. When lifting, the drive platform 14 is guided on the elevator car guide rails 41, 42, which are extended before the lifting process and on which the elevator car 18 is also guided. In particular the deflection rollers 27, 27 'and the latter Components of the drive platform 14 that carry deflection rollers protrude into the counterweight track 44, which extends upward between the support elements 36, 37 of all the guide rail holders 35.1 to 35.9. A collision of the deflection rollers 27, 27 'with the guide rail brackets 35E to 35H is avoided by the fact that the cross member 40 is not yet mounted on the guide rail brackets mentioned and the auxiliary supports 43 fixing the counterweight-side elevator car guide rail 41 are designed and positioned such that they are between the deflection rollers 27 or the components of the drive platform 14 that carry them. After the drive platform 14 has been raised and fixed sufficiently far upward and the elevator system has been made ready for operation again, the cross members 40 become on the one hand at the end 45 of the first support element 36 and on the other hand at the end 46 of the second support element from the roof of the vertically movable elevator car 18 37 of their assigned guide rail brackets, which are now located below the drive platform, and thus integrated into it, so that the guide rail brackets 35.1-35.8 are now in their final state. The elevator car guide rail 41 is then definitely fixed to the cross beams and the auxiliary beams 43 are removed.

In this exemplary embodiment, the drive platform 14 is supported at the level of the floor 4E after the lifting process has been carried out. The support device 16 of the drive platform 14 can have extendable and retractable arms for this purpose. In the case of a further construction progress, in which additional floors have been built, the roof 5 is moved further up accordingly. Then the lifting device 6 is also moved further up. A further lifting process for the drive platform 14 can then be carried out. When the building is completed, it is also possible that the drive platform 14 is used directly to form a machine room floor. However, other solutions are also conceivable in which the drive platform 14 is completely or partially removed.

In this exemplary embodiment, an elevator car door 55 is located on a front side 54 of the elevator car 18. The counterweight carriageway 44 is located on a doorless side 56 of the elevator car 18, along which the suspension elements 19, 19 'are also guided. Furthermore, a further doorless side 57 is provided which faces away from the doorless side 56 and on which the suspension means 19, 19 'are also guided. The rear side facing away from the front side 54 is also available in this embodiment in order to attach an elevator car door there.

In this exemplary embodiment, the elevator car guide rail 41 is connected to the cross member 40 via an angle profile 59. However, other fastenings are also conceivable. Furthermore, the support elements 36, 37 can also be connected indirectly to the shaft wall 12. Furthermore, it is conceivable that a support structure is provided, to which elements in the elevator shaft 2 can be attached. A load-bearing shaft wall 12 may then not be necessary.

The invention is not limited to the exemplary embodiment described.

Claims (13)

1. Method for erecting an elevator system (1) in an elevator shaft (2) of a building, in which method at least one lift process is carried out in order to adapt a usable lift height of the elevator system to an increasing height of the building, the lift process comprising lifting at least one drive platform (14) that supports an elevator drive machine (15) and via flexible support means (19, 19')an elevator car (18) and a counterweight (28) along at least one elevator car guide rail (41),
   wherein
   before the lift process the at least one elevator car guide rail (41) is elongated in the upwards direction above the drive platform (14) and fixed to a shaft wall (12) of the elevator shaft (2) in the region of this elongation by means of at least one auxiliary support (43), characterized in that after the lift process the at least one auxiliary support (43), which then lies below the drive platform (14), is replaced by a final guide rail mounting (35D) that is designed differently than the auxiliary support.
2. Method according to claim 1,
   characterized in that
   the auxiliary support (43) is designed so as not to form a movement obstacle for the entire drive platform (14) during a lift process when in the installed state.
3. Method according to claim 1 or 2,
   characterized in that
   the counterweight (28) is moved along a vertical counterweight track (44) that is arranged on the same side of the elevator car (18) as the elevator car guide rail (41), which is fixed to at least the aforementioned final guide rail mounting (35D), and
   the support means (19, 19') are guided between the elevator car (18) and the counterweight (28) via a drive pulley (26) of the elevator drive machine (15) and via at least one deflecting roller (27) supported on the drive platform (14), wherein at least the deflecting roller (27) or the drive pulley (26) protrudes into the counterweight track (44).
4. Method according to any of claims 1 to 3,
   characterized in that
   the final guide rail mounting (35D) has a first support element (36) and a second support element (37) that are fixed to the shaft wall (12) before or after the lift process at approximately the same height on opposite sides (52, 53) of a resulting counterweight track (44), and that protrude into the elevator shaft (2), and in that to finish the final guide rail mounting (35D), a cross-member (40) that does not extend through the resulting counterweight track (44) connected after the lift process at one end thereof to an end (45) of the first support element (36) that protrudes into the elevator shaft (2) and at the other end thereof to an end (46) of the second support element (37) that protrudes into the elevator shaft (2).
5. Method according to any of claims 1 to 4,
   characterized in that
   the at least one auxiliary support (43) is fixed to the shaft wall (12) above the drive platform (14) prior to the lift process so as to extend at least partially through the resulting counterweight track (44) without hindering a lift process of the drive platform (14), and
   in that after the lift process, the at least one auxiliary support (43), which then lies below the drive platform (14), is dismantled and replaced by a final guide rail mounting (35D), the components of which are arranged on the outside of the resulting counterweight track (44) but at least partially inside of the vertical projection of the entire drive platform.
6. Method according to any of claims 3 to 5,
   characterized in that
   before the lift process, two support elements (36, 37) allocated to a guide rail mounting (35D) are fixed to the shaft wall (12) above the drive platform (14), wherein the resulting counterweight track (44) extends between the support elements (36, 37);
   in that before the lift process, the at least one auxiliary support (43) is temporarily fixed directly or indirectly to the shaft wall, wherein the auxiliary support extends at least partially through the resulting counterweight track (44);
   in that before the lift process, the elevator car guide rail (41) is elongated upward to the auxiliary support (43) and fastened temporarily to the auxiliary support in the region of the elongation thereof; and
   in that after the lift process, a cross-member (40) that does not extend through the resulting counterweight track (44) is integrated into the final guide rail mounting (35D), the elevator car guide rail (41) is fastened to this cross-member (40), and the auxiliary support (43) is dismantled.
7. Method according to any of claims 1 to 6,
   characterized in that
   the lift process comprises lifting at least the drive platform (14) with the elevator drive machine (15) along the elevator car guide rail (41), wherein the drive platform (14) is guided on a part of the elevator car guide rail (41) that is temporarily mounted onto the auxiliary support (43).
8. Method according to any of claims 3 to 7,
   characterized in that
   the first support element (36) and the second support element (37) of the final guide rail mounting (35D) are mounted at least approximately at the same height on opposite sides of the resulting counterweight track (44) in the elevator shaft (2), wherein a first counterweight guide rail (38) is connected to the first support element (36) and a second counterweight guide rail (39) is connected to the second support element (37), and in that a counterweight (28) suspended from the drive platform (14) via the support means (19, 19'), along with the elevator car (18), is guided on the first and second counterweight guide rails (38, 39).
9. Method according to any of claims 3 to 8,
   characterized in that
   the auxiliary support (43) is temporarily fastened directly or indirectly to the shaft wall (12) of the elevator shaft (2), wherein the auxiliary support (43) is fastened so as to extend out from the shaft wall (12) of the elevator shaft (2) substantially horizontally through a middle region of the resulting counterweight track (44) into the elevator shaft (2).
10. Method according to any of claims 1 to 9,
    characterized in that
    at least the elongations of the elevator car guide rails 41, 42 that are required above the drive platform (14) and the auxiliary supports (43) being used to temporarily fix the elongation of the elevator car guide rail 41 arranged on the counterweight side of the elevator car are mounted from a mounting platform 32 that is temporarily installed above the drive platform (14) and can be lifted and lowered.
11. Method according to any of claims 1 to 10,
    characterized in that
    in the lift process, the support means (19, 19') are elongated, wherein the elongations of the support means are complemented or rolled out from a support means reserve unit (20) according to the additional length needed.
12. Method according to any of claims 3 to 11,
    characterized in that
    the guide rail mountings (35.1-35.5) lying below the drive platform 14 are brought, after the lift process, into the final state thereof through attachment of the cross-members (40) thereof, the cross-members (40) are connected to the elevator car guide rail (41) arranged on the counterweight side of the elevator car (18), and the auxiliary supports (43), which also lie below the drive platform (14) after the lift process, are dismantled.
13. Method according to claim 12,
    characterized in that
    the attachment of the cross-members (40), the connecting of the cross-members (40) to the elevator car guide rail (41) arranged on the counterweight side of the elevator car (18), and the dismantling of the auxiliary supports (43) after the lift process has been completed, or after restarting of the elevator system are carried out by a technician operating from the top of the elevator car 18.

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