EP3691985A1

EP3691985A1 - Method for constructing an elevator system having increasing usable lifting height

Info

Publication number: EP3691985A1
Application number: EP18768918.7A
Authority: EP
Inventors: Lukas Christen; Pascal BLÄSI; Stefan Weber; Gabriele BIZZOZERO
Original assignee: Inventio AG
Current assignee: Inventio AG
Priority date: 2017-10-06
Filing date: 2018-09-19
Publication date: 2020-08-12
Anticipated expiration: 2038-09-19
Also published as: US20200277158A1; WO2019068469A1; SG11202001309YA; AU2018344311A1; US11208296B2; EP3691985B1; AU2018344311B2

Abstract

The invention relates to a method for constructing at least two elevators (3.1, 3.2, 3.3) in a building (2) under construction, wherein the usable lifting heights of said elevators are adapted to an increasing height of the building, wherein each of the at least two elevators (3.1, 3.2, 3.3) is arranged in an elevator shaft (6.1, 6.2, 6.3) of the building associated with the elevator and comprises a drive platform (5) having an elevator drive machine (14), which elevator drive machine supports and drives an elevator car (9) and a counterweight (10) by means of a traction sheave (13) and at least one flexible suspension means (15), and, in order to adapt the usable lifting heights, lifting operations are performed, in which in alternation one of the drive platforms (5) of the at least two elevators (3.1, 3.2, 3.3) is raised to a higher level in the associated elevator shaft (6.1, 6.2, 6.3) and is locked there. In order to perform said lifting operations, a single lifting platform (30) is used, which is temporarily fastened above the particular drive platform (5) to be lifted, in the elevator shaft (6.1, 6.2, 6.3) associated with the particular drive platform, and forms a supporting construction, by means of which a lifting force required to raise the drive platform (5) is transferred to supporting elements of the elevator shaft (6.1, 6.2, 6.3).

Description

Method for constructing an elevator installation with increasing usable lifting height

The present invention relates to a method of building at least two elevators in a building in its construction phase, wherein the usable lifting heights of these elevators are gradually adjusted to an increasing height of the building.

Rather than starting with the installation of these elevators, if the building under construction allows the elevators to be installed at their final intended lift heights, the elevators will be installed in an earlier construction phase as soon as several floors of the building and the required floor space are available

Lift shafts are created with appropriate height. The usable lift heights of such elevators are in the course of the construction of the building at the moment

Building height adaptable, so that the elevators grow with the building and can already be used during the construction of the building for the vertical transport of people or material. As a result, lifts designed especially for transport tasks during the construction phase - for example, those which are attached to the outside of the building - can be completely or partially saved.

WO2011048275 discloses such an elevator installation method in which an elevator, each having an elevator drive machine, an elevator car and a counterweight, is mounted in a dedicated elevator shaft as soon as several lower floors of the building and one associated with the elevator

Elevator shaft are built with the appropriate height. The elevator car and the counterweight of the elevator are suspended on a drive platform comprising the elevator drive machine, at least one suspension element being guided from the elevator car to the counterweight via at least one traction sheave of the prime mover, and the drive platform being raised by means of a hoisting device to a next higher level, if the current building height makes an enlargement of the usable lifting heights of the elevator installations appear expedient. The guide rails of the elevator installation are successively mounted in the elevator shaft from an assembly platform during the construction phase, so that the drive platform can be adjusted along these guide rails in order to adapt the usable lifting height of the elevator can be lifted in the elevator shaft. The drive platform can then be supported at a desired higher level by means of extendable from the drive platform support beams on supporting elements of the elevator shaft.

To lift the drive platform is a lifting platform, which is fixed as far as possible above the drive platform in the elevator shaft before lifting the drive platform. The lifting platform is equipped with pulleys over which

Deflection rollers traction means of a mounted on the drive platform hoist out. With the help of this hoist, the drive platform together with at least the elevator car in the elevator shaft to one of the current

Building height adapted new level raised and supported there. In the final state of the elevator installation, the drive platform is used as the machine room floor of the finished elevator installation.

However, WO2011048275 contains no indication of a possibility in

Elevators in which several elevators are installed in the same building with usable elevation height adaptable to an increasing height of the building to realize simplifications or cost reductions.

From US20100018809 an elevator assembly and a safety structure and methods for elevator assembly are known, which relate mainly to the use and securing of at least one so-called mounting platform. According to one embodiment, the mounting platform is used for installing elevators, which are arranged in adjacent elevator shafts of a building in its construction phase. Each of the elevators comprises a drive platform with a prime mover, which drive machine the

Elevator cabin carries and drives. To adapt the usable lifting heights of the elevators to an increasing height of the building, among other things, the assembly platforms are raised in the respective associated elevator shaft.

The present invention has for its object to provide a cost-saving method for erecting elevator systems, which include several elevators, the usable lifting height is adaptable to an increasing building height during the construction phase. The object of the invention is a method of building at least two elevators in a building in its construction phase, wherein the usable lifting heights of these elevators are gradually adjusted to an increasing height of the building, each of the at least two elevators in an elevator shaft associated therewith the building is arranged and comprises a drive platform with an elevator drive machine, which elevator drive machine via a

Traction sheave and at least one flexible support means carries an elevator car and a counterweight and drives, wherein to adjust the usable lifting heights

Hub operations are performed, in which alternately one of the

Drive platforms of at least two elevators in the associated elevator shaft is raised to a higher level and locked there, and wherein a single lifting platform is used to carry out these lifting operations, which is temporarily fixed above the respective drive platform to be lifted in the associated elevator shaft and forms a supporting structure over which the for lifting the

Drive platform required lifting force is transmitted to load-bearing elements of the elevator shaft.

The invention is therefore based on the idea of dispensing with the provision of multiple lifting platforms in a lift installation with several elevators, the usable lifting heights are adjusted by gradually raising the drive platform by a single lifting platform in each case in a position above the respectively to be lifted drive platform - or ., above the lift shaft associated with this drive platform - is displaced. Such a transfer of

Lifting platform can take place before or after raising the lifting platform to a new, higher building level. Since for lifting a drive platform with elevator car, counterweight and elevator support means in each case a very stable

Lifting platform with an adjustable support device and is required with at least one Antriebsplattformhubwerk, the inventive method or the elevator system according to the invention have the advantage that with their application significant cost savings can be realized.

The term "elevator shaft" is to be understood in the present document, a room in a building in its construction phase, the height increases in accordance with the construction progress, wherein the space is dimensioned and designed so that in the room an elevator car and a counterweight of each elevator along vertical lanes can move up and down. Such an elevator shaft can be a single shaft enclosed by shaft walls. But it may also be part of a contiguous space, in which each part of the lanes of an elevator car and a counterweight of each one of the at least two mutually parallel elevators are arranged, between the lanes of adjacent elevators no shaft wall, but usually steel beams for attachment of elevator components are present.

The term "traction means" in the present document is to be understood as meaning any elongate and pliable component suitable for transmitting tensile forces,

For example, wire ropes, belts or chains.

The term "transfer" is to be understood in the following as transporting a lifting platform from an elevator shaft delivering the lifting platform to an elevator shaft receiving the lifting platform, which transport usually involves lifting in the issuing elevator shaft, lateral displacement between both elevator shafts and lowering or lifting in the receiving

Lift shaft includes.

According to an advantageous embodiment of the invention, a Antriebsplattformhubwerk is installed with a Antriebsplattformzugmittel on the lifting platform for lifting the drive platforms, wherein for performing a lifting operation, the Antriebsplattformzugmittel is coupled to the respective drive platform to be lifted. The arrangement of the Antriebsplattformhubwerks on the single lifting platform has the advantage that only a single Antriebsplattformhubwerk is required to lift the drive platforms of at least two elevators.

In a further possible embodiment of the invention for raising the drive platforms on each of the drive platforms ever a Antriebsplattformhubwerk with a Antriebsplattformzugmittel installed, wherein for performing a

Hub process each of the Antriebsplattformzugmittel the Antriebsplattformhubwerks the to be lifted drive platform is coupled to the above this drive platform positioned lifting platform.

This embodiment has the advantage that the only lifting platform to be fixed temporarily above the respective drive platform to be lifted in the elevator shaft becomes lighter overall and thus easier to move.

In a further possible embodiment of the invention, a transfer of the lifting platform between the elevator shafts of the affected at least two elevators is carried out for alternately lifting the at least two drive platforms, for which the lifting platform is driven on a first lifting platform driven by a first lifting platform hoist and on a second driven by a second lifting platform hoist Lifting platform tension means is suspended and the transfer of the lifting platform is effected by coordinated operation of the two lifting platform hoists.

This embodiment has the advantage that the transfer of the lifting platform is particularly simple and inexpensive to implement, as usable as lifting platform hoist devices Seilzugvorrichtungen in elevator assemblies usually apply and for the displacement process no additional auxiliary equipment - such as horizontal guides - must be mounted.

In a further possible embodiment of the invention, for carrying out the transfer of the lifting platform, the first lifting platform pulling means is guided from a first lifting platform hoisting device mounted on the lifting platform via a first deflecting body arranged approximately above the center of gravity of the lifting platform to a first suspension point which is above the lifting platform about in

Cross-sectional center of the lift platform donating elevator shaft is supported on this elevator shaft, and the second lifting platform tensioning means is performed by the also mounted on the lifting platform second lifting platform from a about above the center of gravity of the lifting platform arranged on this second deflecting to a second suspension point, above the Lifting platform is supported approximately in the cross-sectional center of the lift platform receiving elevator shaft on this elevator shaft.

With this arrangement, the lifting platform traction means can easily transfer the lifting platform from a position above the lifting platform donating elevator shaft to a position above the lift platform receiving elevator shaft can be realized.

In a further possible embodiment of the invention, the first

Lifting platform traction means fixed to the first suspension point and the second lifting platform traction means to the second suspension point, or the first lifting platform traction means is arranged via a first lifting platform traction means deflection roller arranged on the first suspension point and the second lifting platform traction means is arranged via a second lifting platform traction means deflection roller arranged on the second suspension point

Lifting platform returned and fixed there.

These two variants of the arrangement of the lifting platform traction means, according to which either a 1: 1 suspension or a 2: 1 suspension of the lifting platform is formed, allow either a slightly faster transfer of a relatively light

Lifting platform or a slightly slower transfer of a relatively heavy

Lifting platform.

In another possible embodiment of the invention is for transferring the lifting platform of the lifting platform donating elevator shaft to the

Lifting platform receiving elevator shaft in a first step by pulling the first lifting platform pulling means in the first lifting platform lifting the

Lifting platform lifted from its support points, and in a second step, by pulling the second lifting platform pulling means in the second lifting platform lifting the lifting platform pivoted about the first suspension point as a pivot center to about the cross-sectional center of the lift platform receiving elevator shaft, and in a third step, the lifting platform by pulling it or

Leaving at least the second lifting platform traction means in the second or from the second lifting platform to the vertical position provided for them in the lifting platform receiving the elevator shaft.

This process of carried out with the help of the two lifting platform hoists transfers the lifting platform is particularly simple and requires a relatively small amount of time.

Lifting platform receiving elevator shaft in a first step by pulling of the first lifting platform pulling means into the first lifting platform hoist

Lifting platform lifted vertically, or wherein the second lifting platform traction means is substantially tightened by pulling it into the second lifting platform, and in a second step, by letting the first lifting platform traction means out of the first lifting platform hoist, the lifting platform around the second suspension point as a pivotal center to about pivoted into the cross-sectional center of the hoistway receiving lift shaft, and in a third step, the lifting platform by pulling in or out of at least the second lifting platform pulling means in the second or from the second

Hebeplattformhubwerk on their intended vertical position in which the

Lifting platform receiving elevator shaft brought.

Lifting platform receiving elevator shaft raised the lifting platform in a first step by pulling the first lifting platform pulling means vertically into the first lifting platform hoist. In a second step, the lifting platform is pivoted by pulling the second lifting platform pulling means into the second lifting platform hoisting system around the first suspension point as a pivoting center approximately to the middle between said elevator shafts. In a third step, the

Hebeplattform pivoted by leaving out the first lifting platform pulling means from the first lifting platform to the second suspension point as a pivot center approximately in the cross-sectional center of the lift platform receiving elevator shaft, and in a fourth step, the lifting platform by pulling or

Leaving at least the second lifting platform traction means in the second or from the second lifting platform lift in the vertical direction to its intended vertical position in the elevator platform receiving the lifting platform. In this process of lifting platform transfer carried out with the help of the two lifting platform lifts, a lateral displacement results with considerably lower vertical components, and the transfer can be carried out with shorter lifting platform traction means.

In another possible embodiment of the invention, during the sideways movement of the lifting platform forming part of the transfer, the two become Lift platform lifts alternately operated several times to effect an approximately straight-line sideways movement of the lifting platform.

In a further possible embodiment of the invention, the

Suspension points, on which the first and second lifting platform traction means are fixed or deflected, arranged on at least one protective platform, which is temporarily installed and supported vertically displaceable in the area of the upwardly shifting during the construction phase upper ends of the at least two elevator shafts. This attachment of the suspension points of the lifting platform traction means in the region of the at least two elevator shafts has the advantage that it can be implemented with little effort, because when installing elevators, the usable lifting heights are gradually adjusted to an increasing height of the building, such

Protection platforms in each of the elevator shafts must be mandatory anyway.

In another possible embodiment of the invention is at least one fall protection for the lifting platform during the process of transfer

Fastening means mounted, which is fixed on the one hand to the lifting platform, is guided from the lifting platform to a secured in the region of one of the suspension points for the lifting platform pulling means Sicherungszugmittel pulley and then back to the lifting platform and by a mounted on the lifting platform traction device, which Zughalfangvorrichtung the Sicherungszugmittel and so that a lowering of the lifting platform blocked when a speed with which the safety traction device moves through the catching device exceeds a certain limit.

With such a fall protection can the risk of personal injury and

Material damage during the transfer of the lifting platform can be significantly reduced, which is advantageously halved thanks to the leadership of the Sicherungszugmittels a Sicherungszugmittel deflection pulley any occurring load on the traction device and the traction device.

In a further possible embodiment of the invention is in front of a

Performing one of the lifting operations, in which alternately one of the

Drive platforms of at least two elevators raised to a higher level is carried out, a corresponding lifting of the lifting platform within one of the at least two elevator shafts through at least one of the lifting platform hoists with the associated, guided to a suspension hoist platform pulling means. This ensures that between the lifting platform and the lifting

Drive platform is provided a sufficient distance in order to realize the lifting operation, in which the drive platform is lifted by a designated stroke distance.

In a further possible embodiment of the invention, at least one shock-absorbing element in the form of an elastic roller or an elastic buffer is mounted laterally on the lifting platform.

This prevents that during a sideways displacement or lifting the lifting platform, an impact of the lifting platform against elements of a hoistway leads to damage.

In a further possible embodiment of the invention, for the alternate lifting of the at least two drive platforms, a transfer of the lifting platform from one of the at least two elevator shafts to another of the at least two elevator shafts is carried out, the lifting platform along a substantially horizontally arranged roadway temporarily installed for this transfer is moved.

Although such a transfer requires some extra effort for the installation of the horizontally arranged roadway, it is a suitable alternative method for a situation in which the method of transfer with a sideward shift by pivoting the lifting platform on vertically arranged lifting platform traction means is not feasible.

In a further possible embodiment of the invention is used as a drive for sideways movement of the lifting platform along the horizontally arranged roadway installed on the lifting platform Antriebsplattformhubwerk or lifting platform for lifting the lifting platform, wherein the traction means of the drive platform lifting or the Hebeplattformhubwerks is arranged so that it extending substantially horizontally from the respective hoist up to an elevator shaft receiving in the region of the lifting platform

Attachment point extends. When using the lifting platform hoist would after lifting the

Lifting platform to be coupled to a suspension gear to the lifting platform

Lifting platform traction means for the sideways movement free to make.

This embodiment has the advantage that the sideways shifting of the lifting platform along a horizontally arranged roadway requires no additional drive means.

In the following, embodiments of the invention with reference to the attached

Drawings explained. In this case, identical components are designated by the same reference numerals in all figures.

Fig. 1 shows a suitable for the application of the inventive method

Elevators with three elevators adaptable to an increasing building height.

FIG. 2 essentially shows an enlarged detail of the illustration of FIG

Elevator installation according to FIG. 1, with a different arrangement of the drive platform lifting mechanism and with a first embodiment of the method for transferring the lifting platform from an elevator shaft delivering the lifting platform to an elevator shaft receiving the lifting platform.

FIGS. 3 to 6 essentially show enlarged sections from the illustration of FIG

Elevator installation according to FIG. 1, each with a further embodiment of the method for transferring the lifting platform.

1 shows a schematic elevation of an elevator installation 1, which comprises three elevators 3.1, 3.2, 3.3 arranged in a row next to one another in a building 2. The building 2 is in its construction phase, and the three elevators 3.1, 3.2, 3.3 are designed so that their usable lifting heights can be adapted to an increasing height of the building 2, by a respective drive platform associated with one of the elevators and forming a temporary machine room 5 is formed liftable. Each of the three elevators 3.1, 3.2, 3.3 is arranged in an associated elevator shaft 6.1, 6.2, 6.3. Each of the elevator shafts 6.1, 6.2, 6.3 can by four vertical

Be covered shaft walls 7, or he may be part of a common shaft space, the elevator shafts 6.1, 6.2, 6.3 are usually separated from each other by steel beams 8, where at least guide rails for elevator cars 9 and counterweights 10 are attached. Shown is a situation in which the drive platforms 5 of two of the three elevators 3.1, 3.2, 3.3 are still positioned at a lower level corresponding to an earlier building height, and in which the drive platform 5 of the third elevator is already higher to the current building height Level was raised and locked there.

Each of the three elevators 3.1, 3.2, 3.3 includes one along the associated one

Elevator shaft 6.1, 6.2, 6.3 vertically displaceable, provided with a protective cover 11 drive platform 5, which serves as a support for a provided with a traction sheave 13 elevator drive machine 14. Furthermore, each of the elevators 3.1, 3.2, 3.3 comprises an elevator car 9 and a counterweight 10, which are carried by the elevator drive machine 14 via the traction sheave 13 and at least one support means 15 and driven along guide rails, not shown here. A first run 15.1 of the support means 15 is from the traction sheave 13 of the elevator drive machine 14 via a arranged on the drive platform 5 deflecting roller 16 to a cabin roll 19 on the elevator car 9 and then to a first fixed point 20 at the

Drive platform 5 out, and a second strand 15.2 of the support means 15 is guided from the traction sheave 13 to a counterweight roller 21 on the counterweight 10 and then to a second fixed point 22 on the drive platform 5. After the second fixed point 22, which is designed as a detachable suspension-medium clamp, the second run 15.2 of the suspension element 15 is guided around a deflection roller 23 arranged on the drive platform 5 and then downwards to a suspension-medium reservoir 24. For an adaptation of the usable lifting height of an elevator to an increasing height of the building 2 - d. H. when lifting the

Drive platform 5 - the additionally required amount of support means are supplied, wherein prior to lifting the drive platform, the elevator car 9 to the

Coupled drive platform, the counterweight 10 supported in the region of the lower end of the elevator shaft and the second fixed point 22 forming support means clamp are released. So that the drive platforms 5 of the three elevators 3.1, 3.2, 3.3 can be raised and locked at higher levels in their elevator shaft 6, each of the three drive platforms 5 comprises supporting devices 25 with retractable and extendable support beams 26, via which supporting devices the drive platforms on support points 27 are supportable. Such support points are arranged for example by shaft walls 28 or by between the elevator shafts Steel beam 8 formed.

To carry out the stroke processes in which alternately one of the

Drive platforms 5 of the three elevators along their respective elevator shaft 6 is raised to a higher level and locked there, serves a single lifting platform 30 which is temporarily fixed in the elevator shaft above the respective drive platform 5 to be lifted. For fixing or for locking the lifting platform 30 in one of the elevator shafts 6.1, 6.2, 6.3 in the present example, the lifting platform 30 is equipped with supporting devices 31, the extendable and extendable support beams 32 include. By means of these supporting devices 31, the lifting platform 30 can also be supported on the supporting points 27, which are formed by shaft walls 28 or by steel beams 8 arranged in the elevator shafts. The lifting platform 30 forms a sufficiently stable supporting structure, by means of which the lifting force required for lifting the drive platform 5, which is usually several thousand kilograms heavy, can be transferred to supporting points 27 formed by supporting elements of the elevator shaft 6. On the lifting platform 30 is advantageously a Antriebsplattformhubwerk 33 with a Antriebplattformzugmittel 34 installed, wherein to perform a lifting operation, in which the associated drive platform is raised, the

Drive platform traction means 34 is coupled to the respective drive platform 5 to be lifted.

In an alternative embodiment of the installation method may be mounted on each of the drive platforms 5, a Antriebsplattformhubwerk 33 with a Antriebsplattformzugmittel 34, wherein for lifting one of the drive platform the

Drive platform hoist drive platform traction means to be lifted

Drive platform to each positioned above this drive platform

Lifting platform is coupled. This embodiment is shown in Fig. 2 and explained in connection with FIG. 2.

In order for all three elevators 3.1, 3.2, 3.3, the necessary to adapt to a current building height lifting operations for lifting the drive platforms 5 can be performed, is - as seen from Fig. 1 - the only

Lifting platform 30 each of the elevator shaft giving the lifting platform by at least one sideways shift in the lifting platform receiving Elevator shaft transferred. There, the lifting platform 30 is either supported at the previous level above the present in the receiving hoistway drive platform 5 on the elevator shaft or raised to a current height of the building adapted new level and supported there. The facilities required for lifting and sideways shifting the lifting platform and different

Embodiments of the transfer or the sideward shift are explained in more detail below with reference to FIGS. 2 to 6.

In contrast to FIG. 1, however, the lifting platform 30 does not have a drive platform lifting mechanism here, but for lifting all drive platforms 5 there is a drive platform lifting mechanism 33 with an associated drive platform 5 on each of the drive platforms 5 Drive platform pulling means 34 is mounted, wherein for carrying out a lifting operation in each case the drive platform tensioning means 34 of the drive platform lifting 33 of the drive platform 5 to be lifted is coupled to the lifting platform 30 positioned above this drive platform.

Fig. 2 serves primarily to illustrate the operation of a first embodiment of the method for transferring the lifting platform 30 from one of the elevator shafts 6.1, 6.2, (6.3) into another elevator shaft. On the lifting platform 30 two - referred to below as the first and second lifting platform 36, 37 - Seilzugvorrichtungen fixed. The first lifting platform lift 36 cooperates with a first lifting platform pulling means 38, and the second lifting platform lift 37 cooperates with a second lifting platform pulling means 39 to move the lifting platform

Raise lifting platform by coordinated operation of the lifting platform lifts and move sideways. The lifting platform lifts 36, 37 are preferably driven by electric motors. Below the lifting platform lifts 36, 37 a collecting container 43 is attached to the lifting platform 30. In this receptacle, the loose portions of the lifting platform traction means 38, 39 are caught, which when pulling the supporting portions of the lifting platform traction means in the

Lifting platform hoists 36, 37 are ejected from the lifting platform hoists.

The first lifting platform tensioning means 38 is guided from the first lifting platform lifting gear 36 to a first suspension point 40 and fastened there. This first suspension point 40 is supported on this elevator shaft above the starting position of the lifting platform 30 in the region of the cross-sectional center of the elevator platform delivering the lifting platform. The second lifting platform pulling means 39 is guided from the second lifting platform lifting device 37 to a second suspension point 41 and also fastened there. This second suspension point 41 is at about the same height as the first suspension point 40 above the lifting platform 30 in the region of the cross-sectional center of the

Lifting platform 30 receiving elevator shaft supported on this elevator shaft. Above each of the two lifting platform lifts 36, 37, a deflecting body 50 is mounted on the lifting platform 30. These deflecting bodies 50 preferably designed as rollers have the task of guiding the lifting platform pulling means 38, 39 deflected during the transfer of the lifting platform in variable directions to the respective suspension point in the correct direction to the lifting platform lifting mechanisms. As a support for the suspension points 40, 41 is preferably at least one protective platform 45 forming a vertically displaceable support structure, which is temporarily installed and supported in the area of upwardly shifting during the construction phase upper ends of the at least two elevator shafts 6.1, 6.2. Such a protective platform 45 must be present anyway to protect the assembly personnel from falling objects.

To transfer the lifting platform 30 from the lifting platform

Lift shaft 6.1 to the lift platform receiving the lifting platform 6.2 is raised in a first step by pulling the first lifting platform 38 in the first lifting platform 36, the lifting platform 30 from its support points 27. In a second step is by pulling in the second

Hebeplattformzugmittels 39 in the second lifting platform 37 pivots the lifting platform to the first suspension point 40 as pivoting center approximately in the cross-sectional center of the elevator platform 30 receiving elevator shaft 6.2, and in a third step, the lifting platform by pulling in or out of at least the second lifting platform pulling means in the second or . From the second lifting platform on their intended vertical position in which the

Lifting platform receiving elevator shaft 6.2 brought. The arrow 53 marks the angle about which the first lifting platform pulling means 38, and the arrow 56 marks the angle by which the second lifting platform pulling means 39 are pivoted in the course of the sideways movement forming part of the transfer. Mark the arrows 57 the way of the lifting platform 30 during its sideways movement. The arrow 55 marks the angle by which the second lifting platform pulling means 39 as a result of

Lifting the lifting platform is pivoted in the first step, and the arrow 54 marks the angle by which the first lifting platform pulling means 38 is pivoted due to the illustrated lowering of the lifting platform in the third step.

After the lifting platform is supported and secured in the elevator shaft 6.2 receiving it, it can be used for lifting the drive platform positioned in the aforementioned elevator shaft 6.2 - currently still positioned at a lower level and therefore not visible in FIG. Such a transfer of the lifting platform 30 may be carried out before or after raising the lifting platform to a new, higher

Building level done. By repeating the described transfer, the lifting platform 30 can also be moved between elevator shafts 6.1, 6.2, 6.3, between which at least one further elevator shaft is arranged.

FIG. 3 also essentially shows an enlarged detail of FIG

It serves to illustrate the operation of another embodiment of the method for transferring the lifting platform 30 from one of the elevator shafts 6.1, 6.2, (6.3) in another elevator shaft. in the

In contrast to the illustration in FIG. 2, here a drive platform lifting device 63 with associated drive platform pulling means 34 is mounted on the lifting platform 30 and serves to raise the drive platforms 5 from at least two elevators to a higher level. For lifting one of the drive platforms 5 is the respective

Lifting platform 30 is positioned and supported above the drive platform 5 to be lifted in the associated elevator shaft, after which the drive platform pulling means 34 of the drive platform lifting device 63 mounted on the lifting platform 30 is coupled to the drive platform 5 to be lifted.

Also in the embodiment according to FIG. 3, two cable pulling devices, preferably driven by electric motors and designated as first and second lifting platform lifting gears 36, 37, are fixed on the lifting platform 30. The first lifting platform lift 36 cooperates with a first lifting platform pulling means 38, and the second lifting platform lift 37 cooperates with a second lifting platform pulling means 39 to lift and laterally shift the lifting platform by coordinated operation of the lifting platform hoists. Below the lifting platform lift works 36, 37, a collecting container 43 is attached to the lifting platform 30 in the present embodiment. In this receptacle, the loose portions of the lifting platform traction means 38, 39 are collected, which are ejected when pulling the supporting portions of the lifting platform traction means in the Hebeplattformhubwerke 36, 37 from the Hebeplattformhubwerken.

The first lifting platform traction means 38 is guided from the first lifting platform 36 to a first suspension point 40 and fixed there, this first

Suspension point 40 is supported above the starting position of the lifting platform 30 in the area of the cross-sectional center of the elevator shaft delivering the lifting platform on this elevator shaft. The second lifting platform tensioning means 39 is guided from the second lifting platform lifting device 37 to a second suspension point 41 and likewise fastened there, this second suspension point 41 being approximately at the same height as the first suspension point 40 above the lifting platform 30 in the region of the cross-sectional center of the elevator shaft 30 receiving elevator shaft this

Lift shaft is supported. Also in the embodiment described here above each of the two lifting platform lifts 36, 37 each preferably designed as a roller deflecting body 50 is mounted on the lifting platform 30. These

Deflection bodies 50 have the task of guiding the lifting platform pulling means 38, 39 deflected during the transfer of the lifting platform in variable directions to the respective suspension point in the correct direction to the lifting platform lifting mechanisms. As support for the suspension points 40, 41, at least one is also preferably used here

Protection platform 45, which is designed as a vertically displaceable support structure. This protection platform, which is also essential for protecting the installation personnel from falling objects, is preferably temporarily installed and supported in the area of the upper ends of the at least two elevator shafts 6.1, 6.2 which move upwards during the construction phase.

To transfer the lifting platform 30 from the lifting platform

Lift shaft 6.1 to the lift platform receiving the lifting platform 6.2 is raised in a first step by pulling the first lifting platform 38 in the first lifting platform 36, the lifting platform 30 from its support points 27. During or after this, the second lifting platform pulling means 39 is held substantially taut by pulling it into the second lifting platform hoist 37 or streamlined. In a second step is by leaving out the first

Lifting platform pulling means 38 from the first lifting platform 36, the lifting platform 30 pivoted about the pivoting center formed by the second suspension point 41 to approximately the cross-sectional center of the lift platform 30 receiving elevator shaft 6.2. In a third step, then, the lifting platform 30 is moved in or out of at least the second lifting platform pulling means 39 into the second or from the second lifting platform lifting means 37 for them

Vertical position in which the lifting platform receiving elevator shaft 6.2 brought. Also in Fig. 3, the arrow 53 marks the angle to which the first lifting platform pulling means 38, and the arrow 56 marks the angle by which the second lifting platform pulling means 39 in the course of part of the transfer forming sideways movement of

Lifting platform 30 are pivoted. The arrows 57 also mark here the way that the lifting platform 30 during its sideways movement according to the here

described embodiment of the method travels. The arrow 55 marks the angle by which the second lifting platform pulling means 39 is pivoted as a result of lifting the lifting platform in the first step.

After the lifting platform 30 is supported and secured in the elevator shaft 6.2 receiving it, it can be used for lifting the drive platform present in said elevator shaft 6.2 - currently still positioned at a lower level and therefore not visible in FIG. Also with this

Embodiment of the method may be a transfer of the lifting platform 30 respectively before or after raising the lifting platform to a new, higher building level. By repeating the described transfer, the lifting platform 30 can also be moved between elevator shafts 6.1, 6.2, 6.3, between which at least one further elevator shaft is arranged.

FIG. 4 also essentially shows an enlarged detail of FIG

It serves to illustrate the operation of a further embodiment of the method for transferring a lifting platform 30 from one of the elevator shafts 6.1, 6.2, (6.3) in another elevator shaft.

Also in the embodiment described here, a Antriebsplattformhubwerk 63 is mounted with associated Antriebsplattformzugmittel 34 on the lifting platform 30, which serves to lift each one of the drive platforms 5 of at least two elevators to a current building height adapted higher level. To raise one of the drive platforms 5, the lifting platform 30 is positioned and supported above the drive platform 5 to be lifted in the associated elevator shaft, after which the drive platform pulling means 34 of the drive platform lifting device 63 mounted on the lifting platform 30 is coupled to the drive platform 5 to be lifted.

Also in the embodiment according to FIG. 4, two cable pulling devices, preferably driven by electric motors and designated as first and second lifting platform lifting gears 36, 37, are fixed on the lifting platform 30. The first lifting platform lift 36 cooperates with a first lifting platform pulling means 38, and the second lifting platform lift 37 cooperates with a second lifting platform pulling means 39 to lift and laterally shift the lifting platform by coordinated operation of the lifting platform hoists. Below the lifting platform lifting mechanisms 36, 37, a collecting container 43 is also attached to the lifting platform 30 in the present embodiment. In this receptacle, the loose portions of the lifting platform traction means 38, 39 are collected, which are ejected when pulling the supporting portions of the lifting platform traction means in the Hebeplattformhubwerke 36, 37 from the Hebeplattformhubwerken.

Also in the present embodiment, the first lifting platform traction means 38 is guided from the first lifting platform 36 to a first suspension point 40 and fixed there, wherein this first suspension point 40 above the starting position of the lifting platform 30 in the region of the cross-sectional center of the lift platform donating elevator shaft supported on this elevator shaft is. The second lifting platform traction means 39 is guided from the second lifting platform 37 to a second suspension point 41 and also secured there (the representation of the second lifting platform 39 in the starting position of the lifting platform 30 is interrupted because they represent the lifting platform tension means in a

Following position of the lifting platform would cover). The second suspension point 41 is approximately the same height as the first suspension point 40 above the lifting platform 30 in the region of the cross-sectional center of the lifting platform 30 receiving

Lift shaft supported on this elevator shaft. Above each of the two lifting platform lifts 36, 37 is one preferably designed as a roller

Deflection body 50 mounted on the lifting platform 30. These deflecting 50 have the Task to guide the lifting platform pulling means 38, 39 deflected during the transfer of the lifting platform in variable directions to the respective suspension point in the correct direction to the lifting platform lifting mechanisms. As a support for the

Suspension hanger 40, 41 also serves here preferably at least one protective platform 45, which is designed as a vertically displaceable support structure. This also mandatory for the protection of the assembly personnel from falling objects

Protective platform is preferably temporarily installed and supported in the area of the upper ends of the at least two elevator shafts 6.1, 6.2 which move upwards during the construction phase.

To transfer the lifting platform 30 from the lifting platform

Lift shaft 6.1 to the lift platform receiving the lifting platform 6.2 is raised in a first step by pulling the first Hebeplattformzugmittels 38 in the first Hebeplattformhubwerk 36, the lifting platform 30 vertically from their support points 27. In a second step, the lifting platform 30 is pivoted by pulling the second lifting platform pulling means 39 into the second lifting platform hoist 37 around the first suspension point 40 as a pivoting center approximately to the middle between the said elevator shafts. In a third step, the lifting platform 30 by leaving out the first Hebeplattformzugmittels 38 from the first Hebeplattformhubwerk 36 to the second suspension point 41 as a pivot center to about ins

Cross-section center of the lifting platform receiving elevator shaft pivoted, and in a fourth step, the lifting platform by pulling in or

Leaving at least the second lifting platform pulling means 39 in the second or from the second lifting platform lift 37 in the vertical direction to its intended vertical position in the lift platform receiving the lifting platform brought. The arrow 53 marks the angle by which the first lifting platform pulling means 38 is pivoted in the course of the second step, and the arrow 55 marks the angle by which the second lifting platform pulling means 39 is pivoted in the course of the second step. The arrow 54 marks the angle about which the first lifting platform pulling means 38 is pivoted in the course of the third step, and the arrow 56 marks the angle by which the second lifting platform pulling means 39 is pivoted in the course of the third step. The arrow 57.2 here marks the path traveled by the lifting platform 30 during the second step, and the arrow 57.3 marks the path traveled by the lifting platform during the third step. After the lifting platform 30 is supported and secured in the elevator shaft 6.2 receiving it, it can be used for lifting the drive platform present in the aforementioned elevator shaft 6.2 - currently still positioned at a lower level and therefore not visible in FIG. Also with this

Embodiment of the method may be a transfer of the lifting platform 30 respectively before or after raising the lifting platform to a new, higher building level, and by repeating the described transfer can be

Lifting platform 30 also move between elevator shafts 6.1, 6.2, 6.3, between which at least one further elevator shaft is arranged.

It will be readily apparent to one of ordinary skill in the art from FIG. 4 that an approximately straightforward sideways displacement of the lifting platform 30 can be achieved by dividing the second and third steps of the transfer described above into smaller sub-steps. This can be effected by actuating the two lifting platform lifting mechanisms 36, 37 several times alternately during the lateral displacement of the lifting platform.

FIG. 5 also essentially shows an enlarged detail of FIG

As in the embodiments according to FIGS. 3 and 4, in the embodiment described here, a drive platform lifting device 63 with associated drive platform pulling means 34 is mounted for raising one of the drive platforms 5 of the at least two elevators to a higher one adapted to the current building height Level serves. To lift one of the drive platforms 5, the lifting platform 30 is positioned and supported in each case above the drive platform 5 to be lifted in the associated elevator shaft, after which the

Drive platform pulling means 34 of the mounted on the lifting platform 30 Antriebsplattformhubwerks 63 is coupled to the drive platform 5 to be lifted.

Also in the embodiment according to FIG. 5, two preferably driven by electric motors are mounted on the lifting platform 30 as first and second lifting platforms. Hubwerk 36, 37 fixed cable pulling devices fixed. The first lifting platform lift 36 cooperates with a first lifting platform pulling means 38, and the second lifting platform lift 37 cooperates with a second lifting platform pulling means 39 to lift and laterally shift the lifting platform by coordinated operation of the lifting platform hoists. In contrast to the embodiments described above, here each of the two lifting platform traction means 38, 39 is guided twice, ie each of the two lifting platform traction means forms a so-called 2: 1 traction system. Furthermore, in the present embodiment

Retaining traction means 38A and 39A extending substantially parallel to each of the two lifting platform pulling means 38, 39 are arranged. Details of these features as well as their effect and advantages are described in the following sections of this

Description explained.

Below the lifting platform lifts 36, 37 is also present here

Embodiment, a collecting container 43 attached to the lifting platform 30. In this receptacle, the loose portions of the lifting platform traction means 38, 39 are collected, which are ejected when pulling the supporting portions of the lifting platform traction means in the Hebeplattformhubwerke 36, 37 from the Hebeplattformhubwerken. In the sectional view A-A of Fig. 5 are also on the side of the

Lifting platform 30 mounted shock-absorbing elements 75 recognizable, which are suitable to guide the lifting platform during transfer between shaft walls, or to prevent damage in a possibly occurring impact of the lifting platform on walls or other component of the elevator shafts damage. Such shock absorbing elements 75 may be preferably applied to all four sides of the lifting platform 30 in all embodiments of the method and preferably be formed as elastic rollers or as elastic buffers.

In the embodiment according to FIG. 5, the first lifting platform pulling means 38 is guided from the first lifting platform 36 to a lifting platform traction pulley 40.1 forming a first suspension point 40 and then back to a fixing device 65 arranged on the lifting platform in the region of the two lifting platform hoists. Said first suspension point 40 is supported on this elevator shaft 6.1 above the starting position of the lifting platform 30 in the area of the cross-sectional center of the elevator shaft delivering the lifting platform. The second lifting platform pulling means 39 is guided from the second lifting platform lifting device 37 to a lifting platform pulling means deflection roller 41.1 forming a second suspension point 41 and then back to the fixing device 65 mentioned above and also fastened there. The second suspension point 41 is supported at approximately the same height as the first suspension point 40 above the lifting platform 30 in the area of the cross-sectional center of the lift platform 30 receiving elevator shaft 6.2 on this elevator shaft. Also in the present embodiment, above the two lifting platform lifts 36, 37 each one preferably designed as a role

Deflection body 50 mounted on the lifting platform 30. These deflecting bodies 50 have the task of deflecting the sections of the lifting platform traction means 38, 39, which are deflected during the transfer of the lifting platform in variable directions to the respective suspension point, driven by the lifting platform lifting mechanisms in the correct direction to the

To guide lifting platform hoists. Also shown here are deflecting bodies 66 for deflecting the sections of the lifting platform traction means 38, 39 which are guided to the fixing device 65. Support for the lifting platform traction means deflecting rollers 40.1, 41.1 forming the suspension points 40, 41 is also preferably used here for at least one

The process of transferring the lifting platform 30 from the elevator shaft 6.1 delivering the lifting platform to the elevator shaft 6.2 receiving the lifting platform here corresponds essentially to the procedure described in connection with FIG. 4. In a first step, by pulling the first lifting platform pulling means 38 into the first lifting platform lifting gear 36, the lifting platform 30 is lifted vertically from its supporting points 27. In a second step, the lifting platform 30 is pivoted by pulling the second lifting platform pulling means 39 into the second lifting platform hoist 37 around the first suspension point 40 as a pivoting center approximately to the middle between the said elevator shafts. In a third step, the lifting platform 30 by leaving out the first Hebeplattformzugmittels 38 from the first Hebeplattformhubwerk 36 to the second suspension point 41 as a pivot center to about ins

Swiveled cross-sectional center of the lifting platform receiving elevator shaft, and in a fourth step, the lifting platform is pulled in or out

Leaving at least the second lifting platform pulling means 39 in the second or from the second lifting platform lift 37 in the vertical direction to its intended vertical position in the lift platform receiving the lifting platform brought. The arrow 57.2 here marks the path traveled by the lifting platform 30 during the second step, and the arrow 57.3 marks the path traveled by the lifting platform during the third step.

Of course, in one embodiment with double guided

Lifting platform traction means and / or with Sicherungszugmitteln the transfer and the sideways movement are also performed in the manner shown in FIGS. 2 and 3.

After the lifting platform 30 has been supported and secured in the elevator shaft 6.2 receiving it, it can be used for lifting the drive platform present in the aforementioned elevator shaft 6.2 - currently still positioned at a lower level and therefore not visible in FIG. Also with this

An advantage of the method illustrated in FIG. 5 over the methods described in FIGS. 1-4 is that, by the double guided lifting platform traction means (2: 1 suspension), the tractive forces in the lifting platform traction means, the required driving forces of the lifting platform hoists and the holding forces be halved in the fixing devices of the lifting platform tension means.

In the method shown in Fig. 5 for transferring a lifting platform 30 from one of the elevator shafts 6.1, 6.2, (6.3) in another elevator shaft, also Sicherungszugmittel 38A, 39A are present, which serve as fall protection for the lifting platform 30 during their transfer and in Substantially parallel to the lifting platform traction means 38, 39 are arranged. In section AA of Fig. 5 are in the Outline by the lifting platform pulling means 38, 39 concealed securing traction means 38A, 39A recognizable. Each of the securing traction means is fixed on the one hand to the lifting platform 30 and from the lifting platform 30 to a in the range of one of the already provided for the lifting platform 38, 39 suspension points 40, 41 Sicherungszugmittel deflection pulley 40.2, 41.2 and then back to the lifting platform 30 and through a mounted on the lifting platform traction device 70, 71 out. This traction device 70, 71 blocks the securing traction means and thus a lowering of the lifting platform 30 when a speed or an acceleration at which the securing traction device moves through the trapping device exceeds a certain limit. A further advantage of the method illustrated in FIG. 5 over the method described in FIGS. 1 to 4 is thus that the risk of personal injury and material damage during transfer of the lifting platform is considerably reduced with the described fall protection. Thanks to the leadership of the Sicherungszugmittels on a Sicherungszugmittel pulley (2: 1 suspension) occurring in a possibly necessary use of the fall protection load of the Sicherungszugmittels and the traction device is advantageously halved.

FIG. 6 also essentially shows an enlarged detail of FIG

As with the embodiments according to FIGS. 3 to 5, in the embodiment described here a drive platform lifting gear 63 with associated drive platform pulling means 34 is mounted on the lifting platform 30, which

Antriebsplattformhubwerk 63 for lifting each one of the drive platforms 5 of at least two to be installed in the building lifts to a current building height adapted, higher level is used. To lift one of the

Drive platforms 5 is the only lifting platform 30 is positioned and supported above the drive platform 5 to be lifted in the associated elevator shaft, after which the Antriebsplattformzugmittel 34 of mounted on the lifting platform 30 Antriebsplattformhubwerks 63 is coupled to the drive platform 5 to be lifted. The embodiment of the method according to FIG. 6 differs from the one of FIG

Embodiments according to FIGS. 1 -5 in that the lateral displacement of the lifting platform 30 forming part of the transfer is not achieved by coordinated actuation of two lifting platform lifting mechanisms acting on two lifting platform pulling means. The sideways shift takes place here by horizontal shifting of a

Horizontal undercarriage 80, on which the lifting platform 30 is suspended liftable and lowered. In addition, both the lifting of the lifting platform is adapted to the progress of building construction higher level as well as the

Performing a transfer lifting and lowering the lifting platform by means of a single, acting on a single lifting platform 38 means

Lifting platform hoist 36. For the sideways movement during the transfer of the

Lifting platform from a lift platform donating to a lift platform receiving the horizontal platform 80 is preferably moved along a formed by a steel girder horizontal carriageway 81, each mounted temporarily above the lifting platform to be transferred at least between the lifting platform and the lifting platform receiving the elevator shaft and on supported by these elevator shafts. This support of the horizontal carriageway on the elevator shafts takes place in the case described here

Embodiment preferably via at least one protective platform 45, which is designed as a vertically displaceable in the elevator shaft and supportable support structure therein. This protection platform, which also serves to protect against falling objects, is preferably located in the area of the building during the construction phase upwards

shifting upper ends of the at least two elevator shafts 6.1, 6.2 temporarily installed. The only, preferably driven by an electric motor

Lifting platform 36 is in the embodiment of FIG. 6 at the

Lifting platform 30 fixed. However, it could also be mounted on said horizontal chassis. The lifting platform lift 36 cooperates with a lifting platform pulling means 38 to lift the lifting platform. In the illustrated embodiment, the lifting platform traction means 38 is double guided, that is, it forms a so-called 2: 1 traction system by upwardly from the lifting platform lift to a hoisting platform traction pulley 40.1 present on the horizontal traveling gear and subsequently back to one on the lifting platform 30 Fixing device 65 out and fixed there. Of course, an embodiment with a simple guided or with more than twice guided lifting platform pulling means (Mehrfacheinscherung) realizable. Also in the embodiment according to FIG. 6, it is possible and

expediently, a Sicherungszugmittel with a traction device (both not visible in Fig. 6) to arrange, as already described in connection with the embodiment of FIG. 5. Such securing cord means extends substantially parallel to lifting platform pulling means 38 and blocks lowering of lifting platform 30 when the speed at which the securing cord means moves through the traction mechanism means exceeds a certain limit. Below the lifting platform 36 also in the present embodiment, a collecting container 43 is mounted on the lifting platform 30, in which the loose portion of the lifting platform 38 is caught, which is ejected when pulling the supporting portion of the lifting platform pulling means in the lifting platform 36 from the lifting platform.

As a drive for sideways shifting of the lifting platform 30 along the horizontal carriageway 81 is preferably installed on the lifting platform, serving to lift the drive platforms Antriebsplattformhubwerk 63 or on the

Lifting platform 30 installed, used to lift the lifting platform lifting platform 36 used. The traction mechanism 34 of the drive platform lifting mechanism or the traction mechanism 38 of the lifting platform lifting mechanism 36 is arranged such that it extends substantially horizontally from the respective lifting mechanism to an attachment point 83 present in the region of the elevator shaft receiving the lifting platform.

Claims

claims

A method of erecting at least two lifts (3.1, 3.2, 3.3) in a building (2) under construction, the usable lift heights of these lifts being adjusted to an increasing height of the building,

wherein each of the at least two elevators (3.1, 3.2, 3.3) in an associated elevator shaft (6.1, 6.2, 6.3) of the building (2) is arranged and a

Drive platform (5) with an elevator drive machine (14), which

Elevator drive machine via a traction sheave (13) and at least one flexible support means (15) carries and drives an elevator car (9) and a counterweight (10), wherein to adjust the usable lifting heights lifting operations are carried out in which alternately one of the drive platforms (5) the at least two elevators (3.1, 3.2, 3.3) in the associated elevator shaft (6.1, 6.2, 6.3) are raised to a higher level and arrested there,

characterized in that

a single lifting platform (30) is used for carrying out these lifting operations, which is temporarily fixed above the respective elevator platform (5) in the elevator shaft (6.1, 6.2, 6.3) associated with this drive platform and forms a supporting structure via which one for lifting the Drive platform (5) required lifting force on load-bearing elements of the elevator shaft (6.1, 6.2, 6.3) is transmitted.

2. The method according to claim 1, characterized in that

for raising the drive platforms (5) a Antriebsplattformhubwerk (33) with a Antriebplattformzugmittel (34) on the lifting platform (30) is installed, wherein for performing a Hubvorgangs the Antriebsplattformzugmittel (34) is coupled to the respective drive platform to be lifted (5).

3. The method according to claim 1, characterized in that

for driving the drive platforms (5) on each of the drive platforms (5) a drive platform lifting device (33) is installed with a drive platform pulling means (34), wherein the drive platform pulling means (34) of the drive platform lifting device (33) of the drive platform to be lifted ( 5) to the above this drive platform positioned lifting platform (30) is coupled.

4. The method according to any one of claims 1 to 3, characterized in that for alternately lifting the at least two drive platforms (5) transfer of the lifting platform (30) between the elevator shafts (6.1, 6.2, 6.3) of the at least two elevators (3.1, 3.2 , 3.3), for which purpose the lifting platform (30) is suspended from a first lifting platform pulling means (38) driven by a first lifting platform lift (36) and a second lifting platform pulling means (39) driven by a second lifting platform lift (37) and the transfer of the

Lifting platform (30) by coordinated operation of the two lifting platform lifts (36, 37) is effected.

5. The method according to claim 4, characterized in that

the first lifting platform pulling means (38) being guided from and fixed to the first lifting platform (40) on the lifting platform (30) to a first suspension rack (40), said first suspension rack (40) above the lifting platform (30) in the region of Cross-section center of the lifting platform (30) dispensing elevator shaft (6.1, 6.2, 6.3) is supported on this elevator shaft, and that the second lifting platform pulling means (39) from the likewise on the lifting platform (30) installed second lifting platform (37) from a second suspension point (41) is guided and fixed there, wherein the second suspension point (41) above the lifting platform (30) in the region of a cross-sectional center of the lift platform (30) receiving elevator shaft (6.1, 6.2, 6.3) is supported on this elevator shaft.

6. The method according to claim 4, characterized in that

the first lifting platform pulling means (38) is guided by the first lifting platform lifting device (36) installed on the lifting platform (30) to a first suspension point (40), where a first lifting platform pulling means deflection roller (40.1) wraps around it

Lifting platform (30) is returned and attached to this, the first

Supporting point (40) above the lifting platform (30) in the region of a cross-sectional center of the lift platform (30) dispensing elevator shaft (6.1, 6.2, 6.3) is supported on this elevator shaft, and that

the second lifting platform pulling means (39) from the second lifting platform lift (37) also installed on the lifting platform (30) to a second suspension point (41), where a second lifting platform pulling means deflection roller (41.1) wraps around, is returned to the lifting platform (30) and secured thereto, the second suspension rack (41) above the lifting platform in the region of a cross-sectional center of the lifting platform (30) receiving Elevator shaft (6.1, 6.2, 6.3) is supported on this elevator shaft.

7. The method according to claim 6, characterized in that

for transferring the lifting platform (30) from the lifting platform

Elevator shaft (6.1, 6.2, 6.3) for the lift platform receiving the elevator shaft (6.1, 6.2, 6.3) in a first step by pulling the first lifting platform pulling means (38) into the first lifting platform lift (36) the lifting platform (30) from its support points (27) is picked up,

in a second step, by pulling in the second lifting platform pulling means (39) into the second lifting platform hoist (37), the lifting platform (30) around the first suspension point (40) as pivoting center approximately into the cross-sectional center of the elevator shaft receiving the elevator platform (6.1, 6.2, 6.3) is pivoted, and that in a third step, the lifting platform (30) by pulling or

Leaving at least the second lifting platform traction means (39) in the second or from the second lifting platform (37) to those intended for them

Vertical position in which the lifting platform (30) receiving elevator shaft (6.1, 6.2, 6.3) is brought.

8. The method according to claim 6, characterized in that

for transferring the lifting platform (30) from the lifting platform

Elevator shaft to the lift platform receiving elevator shaft (6.1, 6.2, 6.3) in a first step by pulling the first lifting platform pulling means (38) into the first lifting platform lift (36) the lifting platform (30) is lifted vertically, wherein or after which the second lifting platform pulling means (39) by pulling into the second lifting platform hoist (37) is kept substantially tightened or tightened that in a second step by leaving out the first lifting platform pulling means (38) from the first lifting platform (36), the lifting platform (30) to the second suspension point (41) pivots as pivoting center approximately to the cross-sectional center of the lift platform (30) receiving elevator shaft (6.1, 6.2, 6.3), and that in a third step, the lifting platform (30) by pulling or Leaving at least the second lifting platform traction means (39) in the second or from the second lifting platform (37) to those intended for them

9. The method according to claim 6, characterized in that

for transferring the lifting platform (30) from the lifting platform

Elevator shaft (6.1, 6.2, 6.3) to the lifting platform receiving elevator shaft (6.1, 6.2, 6.3) the lifting platform is raised vertically by pulling the first lifting platform pulling means (38) in the first lifting platform (36), in a second step the Lifting platform (30) by pulling the second lifting platform pulling means (39) in the second lifting platform (37) is pivoted about the first suspension point (40) as a pivot center to about the middle between said elevator shafts (6.1, 6.2, 6.3), in a third step the

Lifting platform (30) by the first lifting platform pulling means (38) from the first lifting platform (36) is pivoted about the second suspension point (41) as pivoting center approximately in the cross-sectional center of the lifting platform (30) receiving elevator shaft (6.1, 6.2, 6.3) and in a fourth step the lifting platform (30) by pulling or dropping at least the second lifting platform pulling means (39) into the second or from the second lifting platform lift (37) to their intended vertical position in the elevator shaft (30) receiving the elevator shaft (6.1, 6.2, 6.3).

10. The method according to any one of claims 7 to 9, characterized in that during a part of the transfer forming sideways displacement of the lifting platform (30) the two lifting platform lifts (36, 37) are actuated alternately several times to an approximately rectilinear sideways displacement of the lifting platform (30 ) to effect.

11. The method according to any one of claims 5 to 10, characterized in that the suspension points (40, 41) on which the first and second lifting platform pulling means (38, 39) are fixed or deflected, are arranged on at least one protective platform (45), which is temporarily installed and supported vertically in the area of the upper ends of the at least two elevator shafts (6.1, 6.2, 6.3) which move upward during the construction phase.

12. The method according to any one of claims 5 to 11, characterized in that as fall protection for the lifting platform (30) during the operation of the transfer at least one Sicherungszugmittel (38A, 39A) is mounted, which is fixed on the one hand on the lifting platform (30), from the lifting platform to one in the region of one of the suspension points (40, 41) for the lifting platform pulling means (38, 39) attached

Retaining tension pulley guide pulley (40.2, 41.2) and then back to

Lifting platform (30) and by a mounted on the lifting platform traction device (70, 71) is guided, which Zugmittelfangvorrichtung the Sicherungszugmittel (38A, 39A) and thus a lowering of the lifting platform (30) blocked when a speed with which the Sicherungszugmittel by moves the traction device (70, 71) exceeds a certain limit.

13. The method according to any one of claims 5 to 12, characterized in that prior to performing one of the lifting operations, in which alternately one of the drive platforms (5) of the at least two elevators (3.1, 3.2, 3.3) is raised to a higher level, a corresponding lifting of the lifting platform (30) within one of the at least two elevator shafts (6.1, 6.2, 6.3) by at least one of the lifting platform lifting mechanisms (36, 37) with the associated lifting platform pulling means (38, 39) guided to a suspension member (40, 41) is carried out.

14. The method according to any one of claims 4 to 13, characterized in that at least one side of the lifting platform (30) at least one shock-absorbing element (75) is mounted in the form of an elastic roller or a Elastikpuffers.

15. The method according to claim 1, characterized in that

for alternately lifting the at least two drive platforms (5), transferring the lifting platform (30) from one of the at least two elevator shafts (6.1, 6.2, 6.3) to another of the at least two elevator shafts, the lifting platform (30) running along one of these Transfer temporarily installed

Horizontal carriageway (81) is moved.

16. The method according to claim 15, characterized in that

as a drive for sideways shifting the lifting platform (30) along the horizontal driving track (81), a drive platform lift (63) installed on the lift platform (30) for lifting the drive platforms (5), or a lift platform lift (36) installed on the lift platform (30) for lifting the lift platform (30) is used.

17. The method according to claim 16, characterized in that

the traction means (34) of the drive platform lifting mechanism (63) or the lifting platform lifting mechanism (36) is arranged such that it extends substantially horizontally from the respective lifting mechanism up to a hoistway (6.1, 6.2, FIG. 6.3) existing attachment point (83) extends.