WO2015003965A1

WO2015003965A1 - Expansion of a shaft region

Info

Publication number: WO2015003965A1
Application number: PCT/EP2014/064030
Authority: WO
Inventors: Stefan Weber; Pascal BLÄSI
Original assignee: Inventio Ag
Priority date: 2013-07-10
Filing date: 2014-07-02
Publication date: 2015-01-15
Also published as: CN105358468A; HK1215944A1; CN105358468B

Abstract

The invention relates to a technical auxiliary platform (50) for temporary use in an elevator shaft (3). The technical auxiliary platform (50) is used during the creation of an elevator. The technical auxiliary platform comprises a supporting structure (51), which has rests or supports (53), by means of which the technical auxiliary platform (50) can be fixed in recesses or on supporting brackets of the shaft walls. Furthermore, the technical auxiliary platform (50) is equipped with a first motorized lifting means (56), which enables the movement of the technical auxiliary platform (50) itself, and the technical auxiliary platform is equipped with a second motorized lifting means (61), which enables the lifting of a movable floor (20) together with a machine room arranged on said movable floor (20). Furthermore, guide rollers (52) are provided on the supporting structure (51), which guide rollers can guide the technical auxiliary platform (50) along the shaft walls of the elevator shaft during movement.

Description

ßesckeibung

The invention relates to an auxiliary platform for temporary use in an elevator installation, to an elevator installation with such an auxiliary platform and to a method for expanding an elevator installation onto an extended shaft area.

The elevator system is usually installed in a building. The building includes a shaft that extends over several floors of the building. The elevator system includes at least one elevator car. The elevator car is moved by means of a drive along substantially vertical guide rails in the shaft. For tall buildings, lower areas of the building are already equipped with elevators, while upper areas of the building are still under construction. Special, so-called growing elevators are used. This means that during the construction period of the building, a machine room of the elevator system is moved from a lower temporary use position to a next upper use position. The engine room is designed as a movable platform. It is particularly important here that preparatory work and the movement of the machine room can be carried out efficiently and safely.

From the publication WO2012 / 072860 a method is known how such a machine room can be moved by means of a support structure supported in the shaft. Here, the movable machine room is lifted by lifting means and it is secured during the displacement by means of safety gear against falling.

From the publication US2013 / 01 18838 a method is known, wherein a temporary engine room can be raised by means preferably supported on rails supporting arrangements.

From the unpublished on the filing date of this application document EP2636629 another method for moving a machine room is known. Here, a roof structure is used with lifting equipment. The roof structure can lift itself by means of one of the lifting devices to a working height and they can be another support structure, which can then be used to move the engine room, in Move elevator shaft.

The invention aims to provide a device and a method for extending an elevator to an extended shaft area, a simple, efficient and safe extension of the manhole area is to be achieved.

The sliding platform is installed in the shaft of the elevator installation and it is usually supported and held by Absetzzeinrichtungen such as supports or supports on a wall of the shaft or in Ausnehinungen in the wall of the shaft. The movable platform includes, for example, a machine room equipment or the movable platform forms the engine room. Of course, the movable platform can also be used for receiving or transporting other elevator components. Above the movable platform, at the end of the respective construction phase, there is usually at least one end roof. Above the roof, the building can be further developed, while below the sliding platform, an elevator is already in operation. The displaceable platform is preferably guided along vertically aligned guide rails. These guide rails are mounted in the shaft and they are provided for guiding an elevator car of the elevator.

As soon as a next higher driving area is completed in the building, the guide rails can be subsequently installed in the shaft to the already installed guide rails. Other lift components such as shaft doors, information transmitters, electrical wiring, etc. can be mounted. If the next higher driving range is ready, the movable platform can be moved so that this next higher driving range or a corresponding part of the building can be accessed by the elevator. As the building is built from bottom to top, the sliding platform is thus typically moved from a lower temporary deployed position to an upper deployed position. The sliding of the movable platform to the upper use position is usually by means of lifting means, for example by means of chain hoist, crane, winch, hydraulic jack or strand jacks. Of course, the displaceable platform or the displaceable machine room can be moved upwards several times until a top deployment position or the final deployment position is reached. The lifting means for moving the sliding platform can directly on the attack sliding platform or it can over deflections or Uinhängungen, similar to a pulley, attack the sliding platform.

According to the proposal, the movable platform is equipped with a fall protection. The fall protection includes on the one hand a safety device which is arranged on the displaceable platform and which can be brought into engagement with the guide rail if necessary. Along a displacement path of the displaceable

Platform is a safety component arranged. A ratchet arranged on the displaceable platform is in engagement with the safety component, and the ratchet is at least indirectly connected to the safety device. The locking mechanism is designed such that it can block or at least block a downward movement of the locking mechanism along the safety component. This results in a possible downward movement of the movable platform a corresponding blocking of the locking mechanism on the security component. As a result, a relative movement of the locking mechanism to the movable platform. The locking mechanism is in this case connected to the safety gear such that it brings the safety gear from a rest position into engagement with the guide rail during the relative movement of the locking mechanism to the displaceable platform.

Thus, the sliding platform can be moved upwards, and in case of unintentional downward movement of the sliding platform, the safety gear on the sliding platform is actuated quickly and directly. The movable platform is thus braked or stopped at the guide rails. In this case, known safety devices, such as those used for braking elevator cars, can be used.

Preferably, the displaceable platform is arranged vertically displaceable along mutually parallel guide rails, and the displaceable platform includes at least two safety gears. In each case one of the safety devices cooperates with one of the parallel guide rails. The locking mechanism advantageously acts via a connecting rod on the at least two safety gears. Thus, the sliding platform is symmetrically loaded during a catching process, or during braking by the fall protection, and tilting moments can be kept low. Of course, in heavy sliding platforms, several pairs of safety gear can be interconnected via the connecting rod. There may also be multiple guide rails with multiple pairs of safety gears be used. Thus, for example, guide rails, which are provided for later guidance of the elevator car and guide rails, which are provided for later guidance of a counterweight, are used to guide and secure the sliding platform. The several safety gears for securing the movable platform can be distributed to the multiple guide rails. The multiple safety gears are then interconnected via the connecting linkage so that they are operated synchronously.

Preferably, the at least two safety gears are connected to each other by means of a connecting rod, so that they are substantially actuated with each other. The linkage is in turn controlled by the connecting linkage. Controlled determines in this context that the connecting rod is so coupled to the connecting linkage, so that an operation of the connecting rod is transmitted to the connecting rod. Alternatively, of course, a connection of at least two safety gears by means of cable or possibly also by means of an electrical release means possible. However, the connecting rod is inexpensive to manufacture and it is safe in use.

Preferably, the connecting rod has a translation which translates the relative movement between the locking mechanism and the displaceable platform so that an actuation path is shortened until engagement of the safety gear with the guide rail. This is advantageous since it allows a fall path to be minimized up to a possible standstill of the displaceable platform.

Preferably, the connecting rod is held by means of a return spring in a standby position. The standby position of the connecting rod corresponds to the rest position of the safety gear, that is, the sliding platform is freely movable upwards and the safety gear is not engaged with the guide rail. This is advantageous because it does not block the sliding platform because of small vibrations.

Preferably, the connecting rod includes a stroke adjustment, and this stroke adjustment can adjust the rest position of the safety gear. If necessary, so that a required actuation path from the rest position of the safety gear to the engagement of the safety gear with the guide rail can be preset. This is advantageous because it can selectively set a responsiveness of the fall arrest. For example, in the case of a fine positioning in the upper operating position, the stroke adjustment may be set roughly to a slight one Lowering the sliding platform to allow while moving the movable platform, the stroke adjustment can be made sensitive. This will quickly stop any slippage of the movable platform. Stroke on coarse means here that a longer actuation path is set from the rest position of the safety gear to the engagement of the safety gear with the guide rail. On sensitive stroke adjustment means that a short actuation path is set from the rest position of the safety gear to the engagement of the safety gear with the guide rail. The stroke adjustment may, for example, include an eccentric disc with which the actuating travel is adjusted by turning.

Preferably, the locking is made switchable, so at least temporarily a lock function can be turned off. This is advantageous because it allows a retraction of the sliding platform down. For example, the temporary switch-off requires a continuous manual intervention, so that in the event of a fault, the locking mechanism can block again only by omission of the manual intervention.

The safety component is preferably a safety cable which runs along at least the displacement path of the displaceable platform, and the locking mechanism is designed as a rope safety locking mechanism. The Sicherheitssee is guided through the locking mechanism or the locking mechanism surrounds the Sicherheitssee. Seilsicherangsgesperre have been tested many times and they are available at low cost. The safety cable can extend from the bottom of the shaft to the topmost application position or it can only be stretched along the required displacement path of the sliding platform.

Alternatively, the guide rail is also the safety component. The locking mechanism is designed to cooperate with a web of the guide rail. This is particularly cost-effective, since the already existing guide rail is at the same time the safety component.

Preferably, the fall protection is provided with a warning device which makes a rest or standby position of the connecting rod or the safety gear recognizable. The warning device can be a switch which activates corresponding control displays or signal lights, or it can also be, for example, a mechanical switching flag which indicates, for example, the position of the connecting linkage. The use of a Wameinrichiung is advantageous because thus blocking the Gesperres or a lowering of the movable platform can also be optically quickly displayed or detected. This increases security. When using a switch with appropriate control indicator or signal light, the circuit can be operated with an energy storage or with a battery during the time of moving the sliding platform.

Preferably, the displaceable platform includes settlers by means of which the displaceable platform can be fixed at predetermined locations in the shaft. The settling devices are, for example, supports or cantilevers of the displaceable platform, which can be extended and which, for example, can be supported on the wall of the shaft or in recesses in the wall of the shaft. Preferably, the sliding platform includes at least one elevator drive used to drive the elevator with the at least one car. The sliding platform is used as a machine room. At least when moving the slidable platform from the lower temporary deployed position to the upper deployed position, the crash-proof secures this slidable platform to the elevator drive against falling. This is self-evident advantageous because a crash of the elevator drive and any high follow-up costs can be prevented.

Preferably, the sliding platform has at least one attachment point with corresponding suspension means, to which the cabin can be attached if necessary, so that the movable platform is displaceable together with the attached cabin. Preferably, an intermediate linkage is provided, which connects an already existing Fangbremssystem the car with the connecting rod of fall protection. Thus, the catch brake system of the car is essentially simultaneously with or even slightly in front of the arranged on the movable platform catching device operable or engageable with the guide rail. This is advantageous because it can be relieved the safety gear of the movable platform or the engine room.

In particular, a method for securing a sliding platform in a shaft of an elevator installation is proposed. The displaceable platform is in this case arranged vertically displaceable along the guide rail. The method includes in particular the steps:

Arranging a safety component in the shaft of the elevator installation, so that the safety component at least along a designated displacement of the extending sliding platform,

Coupling a locking mechanism arranged on the displaceable platform to the security component, which locking mechanism is connected to a safety gear of the displaceable platform,

Adjusting the locking mechanism so that an upward movement of the locking mechanism along the security component is enabled and a downward movement of the locking mechanism along the security component is blocked, and

Actuating the safety gear of the sliding platform, as a result of relative movement between the locking mechanism and the sliding platform by the safety gear is brought by the relative movement of the locking mechanism from a rest position into engagement with the guide rail.

Thus, the movable platform can be safely moved. Conventional lifting means, such as a construction crane, may be used because the sliding platform with the devices mounted on the sliding platform is secured against slipping or falling at any time during shifting.

Preferably, the method allows a manual disabling of the locking function of the locking mechanism or its connection to the safety gear, so that the sliding platform can be lowered at least over a predetermined Absetzweg without bringing the safety gear into engagement with the guide rail.

In a particular embodiment, the establishment of a displaceable machine room includes a multi-stage displacement, transport and security system, which is located at the top or at the upper end of each building section a roof. This roof is installed by a contractor at the end of the construction phase at the top of the shaft. On the one hand, the roof has the task of separating the lower shaft area from the construction area above the roof and protecting the lift system, which is in operation at the bottom of the building. Furthermore, it preferably includes support structures or suspension eyes or suspension points. Below the roof is a technical auxiliary platform. This technical auxiliary platform has a support frame, which, similar to the sliding platform, supports or supports, which allows a placing of the technical auxiliary platform in recesses of the shaft walls. The support frame further has guide rollers which can guide the technical auxiliary platform in the shaft, for example on walls of the shaft. The technical auxiliary platform preferably includes a first lifting means, for example a cable pulling device, which is provided in order to pull itself and thus the technical auxiliary platform in the shaft in cooperation with the supporting structure of the end roof. Further, the technical auxiliary platform preferably also includes a rope lock, which can prevent any slipping of the auxiliary platform. The rope lock acts on a rope, which is also connected to the roof, usually by means of a support roller. After an installation or a displacement of the end roof, the technical auxiliary platform can thus be lifted and fixed in the shaft in the vicinity of the end roof.

The technical auxiliary platform now preferably includes further support points or attachment points to which a mounting platform or other auxiliary hoists can be suspended. By means of the assembly platform and any additional auxiliary hoists, the guide rails can then be installed in the shaft to the lower and already installed guide rails. Also further shaft material can be installed by means of Montagcbühnc or by means of other auxiliary hoists. An operation of running in the lower shaft area elevator system is not disturbed. Preferably marks are attached to the technical auxiliary platform, which can be used as straightening aids in the exact alignment of the guide rails. These marks may be indicative marks for attaching Lotschnüren or for setting laser instruments or the like.

The technical auxiliary platform now preferably further includes a second hoist, for example a chain hoist. The chain hoist is designed so that the displaceable platform or the engine room can preferably be moved together with the attached cabin.

The use of such a technical auxiliary platform is advantageous because:

the roof can be designed simply because it only has to include the supporting structure for moving the technical auxiliary platform and because it only has to be designed to carry the technical auxiliary platform,

may include the auxiliary technical stage facilities or wear that are required for installing the shaft equipment and for displacing the movable platform with which no additional space on the actual movable platform needed ^"is the technical auxiliary platform can be removed after completion of the building and, if necessary, reused in other buildings,

a number of required subcarriers can be minimized.

Embodiments of the invention will now be described by way of example with reference to partially schematic figures. Like-acting parts are the same in the figures

Provided with reference numerals.

Fig. 1 shows a schematic section of an elevator with a sliding

Platform in a lower temporary deployment position,

FIG. 2 shows the elevator of FIG. 1 in a ready position for shifting the displaceable platform to an upper deployed position; FIG.

Fig. 3 shows the elevator of Figures 1 and 2 after a displacement of the displaceable

Platform to an upper deployment position,

4 shows a sliding platform with engine room equipment,

5 shows a fall protection on a displaceable platform,

FIG. 6 shows a detail of the fall protection of FIG. 5.

7 shows a schematic overall view of a displaceable elevator in a lower temporary deployment position,

FIG. 8 shows the displaceable elevator of FIG. 7 when equipping an upper one

Travel range of the elevator,

FIG. 9 shows the displaceable elevator of FIGS. 7 and 8 moving to the upper deployed position, and FIG

Fig. 10 shows a technical auxiliary platform, which for moving the movable

Platform is used.

In Figure 1, an elevator system is installed in a building. The building is substantially completed in a lower area 3u, and the elevator system opens up this lower area 3u. The elevator installation includes an elevator cage 43. The elevator cage 43 is moved by means of a drive 39 and via support and propellant means 44 along essentially vertical guide rails 23 in a shaft 3 of the building. The drive 39 is arranged on a displaceable platform 20. The movable platform 20 is thus also referred to as a displaceable engine room. In FIG. 1, the displaceable platform 20 is arranged in a lower temporary insertion position PI. It is, for example by means of a settling device 38 on or in winds of the shaft - in the example in front and rear walls - set. The settlers 38 are preferably extendable pads or supports. These settling devices 38 are guided longitudinally displaceably in a hollow profile of the displaceable platform 20. In a front region of the displaceable platform 20, these setting devices can be pulled so that they overlap with a floor bottom. In the rear region of the displaceable platform 20, these depositing devices can be pushed by means of control rods 54 from the front to the rear, so that they protrude into recesses or recesses in the rear wall. Thus, the settling devices 38 can be actuated without entering the displaceable platform 20. Of course, lateral niches, recesses, wall projections or support brackets can be used, in which case the Absetzzeinrichtungen 38 would be extended laterally or swung.

The displaceable platform 20 contains the essential elevator components required for the operation of the elevator installation, as far as they are usually arranged in the machine room. The elevator installation can thus be operated in the lower area 3u of the shaft 3. The sliding platform 20 shown schematically in FIG. 1 also has a protective roof 41. The protective roof 41 closes the shaft 3 upwards. Irrespective of this, it is customary for construction managers to place additional ceilings or a roof covering in order, for example, to prevent penetration of concrete or rainwater, etc., into the lower shaft area 3u.

Of course, the elevator car 43 includes its own safety brake system 48, which stops or stops the elevator car 43 in a known manner at overspeed. Also, the sliding platform 20 is equipped with a fall protection 25. In Figure 1, this dislocation 25 is not of major importance since the slidable platform 20 is fixed and blocked by the settler 38 and thus can not crash. In Figure 2, the building is completed to a next area 3u ⁺ . The guide rails 23 and of course other shaft material such as shaft doors or information systems, etc. (not shown) are installed. A safety component 27 of the fall protection device 25, in the example a safety cable, is installed over the next area 3 ^" . A detailed structure of a possible embodiment of the fall protection device 25 will be explained later.

The elevator car 43 is connected by means of trailing means 45, in the example by means of carrying bars, attached to the sliding platform 20. The movable platform is provided with corresponding attachment points. A possible counterweight (not shown) is fixed at the bottom of the shaft 3. The support means 44 can be solved depending on the type of suspension or at least relieved in one of the Tragmittelbefestigungspunkte and they can be easily nachzug or pulled in the subsequent raising of the movable platform 20 or in a later step. By means of a lifting means 62, which is mounted on a suspension point 22 of the movable platform 20, the movable platform 20 or the entire machine room can now be raised together with the elevator car 43 and moved to an upper insertion position P2. The upper deployment position P2 is determined such that a next higher driving range can be operated in the building. To displace the displaceable platform 20, of course, the settling device 38 of the displaceable platform 20 is released or retracted so that it does not hinder the displacement of the displaceable platform 20. During the lifting and process, the sliding platform 20 is secured by means of the crash barrier 25 against unexpected downward movement. As a special feature, the fall protection 25 of the displaceable platform 20 is coupled by means of an intermediate linkage 46 to the safety brake system 48 of the elevator car 43. Thus, in the event of all slipping off of the displaceable platform 20 with the cab 43 attached, the crash barrier 25 of the displaceable platform 20 and the safety brake system 48 of the elevator car are brought into action directly. The safety brake system 48 of the elevator car 43 thus acts as part of the crash barrier.

As soon as the upper insertion position P2 has been reached, as can be seen in FIG. 3, the siting device 38 of the displaceable platform 20 is once again extended, and the displaceable platform 20 is placed on the settling device 38 and fixed by it. The support means 44 can again - of course, in a new driving range adapted length - connected to the car 43 and the possible counterweight (not shown) and / or fixed in the Tragmittelbefestigungspunkten. The trailing means 44 or the support rods, by means of which the elevator car 43 was hung on the movable platform 20, can be removed. The lift system is thus available in a short time for the extended driving range.

FIG. 4 shows an exemplary embodiment of the displaceable platform 20. The Slidable platform 20 includes a support structure 21, On the support structure 21, the components corresponding to the purpose of the movable platform 20 are arranged. In the example, the sliding platform 20 includes engine room components as required for operation of the elevator installation. These are in particular the drive 39 together with corresponding electrical control elements such as elevator control and AC or inverter, a speed limiter 40 for controlling the safety brake system 48 of the elevator car 43 or a Tragmittelbefestigungspunkt 42. The list is only an example. Of course, a purpose for which the slidable platform 20 is needed will dictate placement of the slidable platform. In the support structure 21, the settling device 38 is integrated. These are supporting beams or supports, which are guided in the support structure 21 and which can be extended for depositing the displaceable platform 20. For extending or retracting the settling device 38 control rods 54 are provided which allow operation of rear depositing means 38. This means that the settling devices 38 of a front side, which is accessible, for example, from one floor of the building, can be operated directly manually, while on the opposite side, that is to say behind trailing devices 38, are operated via control rods 54. The support structure 21 includes guide shoes 24 with which the displaceable platform 20 can be guided along the guide rails 23. The entire movable platform 20 is covered by a protective roof 41. The protective roof 41 has openings which enable at least one passage of the guide rails 23, the safety cable 27 or also of the lifting means, with which the displaceable platform 20 can be pulled up.

The fall protection 25 of the displaceable platform 20 is largely integrated into the support structure 21. For this purpose, two pairs of safety gears 26 are integrated in the support structure in the present example, which together with the guide rail 23 can stop and hold the movable platform 20 with the associated loads. The safety gears 26 are, as shown in detail in Figures 5 and 6, connected via tie rods 34 with a drawbar lever 33. The drawbar levers 33 are further synchronized with each other via a connecting rod 31 and corresponding lever connections 32. Thus, the catching devices 26 arranged on both sides of the displaceable platform 20 are in each case actuated with one another, and unilateral blocking is thus prevented. The lever joints 32 are of a connecting rod 29 driven, and the connecting rod 29 is coupled by means of a locking mechanism 28 with the safety cable 27. The locking mechanism 28 is preferably a commercially available locking mechanism. These locks are switchable if necessary, so that a lock is at least temporarily canceled.

The locking mechanism 28 controls the safety gear 26 via the connection rod 29 and, if required, also the safety brake system 48 of the elevator car 43. FIG. 6 shows a detailed embodiment of the connecting rod 29 in detail. The connecting rod includes a lever support 29.3. The lever support 29.3 has attachments that allow attachment of the connecting linkage on the platform structure 21. In lever support 29.3 two parallel levers 29.2 are mounted and these two parallel lever 29.2 include at one end a connector 29.1. By means of the parallel lever 29.2 and the connector 29.1 and their Lagerang in lever support 29.3 is a pivoting movement of the connector parallel / allows safety component 27 and the corresponding safety cable. At the connector 29.1, the locking mechanism 28 is attached so that it is aligned substantially in accordance with the course of the safety cable 27. The parallel lever 29.2 are pressed by means of a return spring 30 in a standby position. One of the parallel lever 29.2 is connected via a bearing point and a first rod with a drawbar lever 33, with a connecting rod 31 and a further drawbar lever 33. The first rod 29.4 is connected via compensating springs with the parallel lever 29.2, so that repulsive forces of safety gear 26 are limited to the connecting rod 29. The safety gears 26 are connected via tie rods 34 with the Zugstangenhebeln 33. Thus, the movable platform 20 moves downwards, locks the locking mechanism 28 on the safety component 27. As a result, the parallel lever 29.2 are pivoted and this accordingly pivot the drawbar 33, which then operate the safety gear 26 via the tie rods 34.

In the embodiment according to FIG. 6, one of the parallel levers 29.2 also controls a second rod 29.5. This second rod 29.5 is guided to a translation 35. A movement of the parallel lever 29.2 is thus passed directly to the translation 35, which then controls the intermediate linkage 46, which in turn actuates the safety brake system 48 of the elevator car 43. The translation is designed to increase the movement of the parallel lever 29.2, so that the safety brake system 48 of the elevator car 43 at about the same time or slightly before the safety gears 26 of the movable platform 20 comes into effect. The second rod 29.5 is also connected via equalizing springs with the parallel lever 29.2, so that movement inequalities between the various catch and safety brake systems can be compensated.

Further, the connecting rod 29 includes a stroke adjustment 36. This is an eccentric disc, by means of which the parallel lever 29.2 can be moved so that the safety gears 26 are already lifted from their standby position. Thus, a sensitivity of the fall protection can be set because a remaining actuation path can be shortened in a required operation. Next, an electrical contact 37.1 is arranged on the connecting rod 29, which switches upon actuation of the parallel lever 29.2 - and thus a corresponding operation of the catch and brake systems - a warning device 37, such as a blaze or a rotating light. To power a battery or a battery is carried on the sliding platform.

An example of a shifting cycle of a growing elevator installation will be explained by way of example with reference to FIGS. In FIG. 7, the elevator installation is in operation in a lower area 3u of the shaft 3. The slidable platform 20 is set as a machine room at the upper end of the lower portion 3u. The elevator car 43 is in normal operation. The building contractor continued to build the building over an upper area 3o, and at the upper end of the upper area 3o, the contractor installed a finishing roof 70. The closure roof 70 closes the entire shaft 3 upwards so that no objects can fall into the shaft 3. In the end roof 70 suspension eyes are anchored to which a hanger 66 is attached. In the upper portion 3o of the shaft, a technical auxiliary platform 50 is installed, which is connected by cables 57, 59 with the hanger 66.

The technical auxiliary platform 50 is shown in detail in FIG. The technical auxiliary platform 50 has a support frame 51 which, similar to the displaceable platform 20, supports or supports 53, which is a laying of the technical auxiliary platform

50 in recesses of the shaft walls allows. The supports or supports 53 can be actuated by control rods 54, as in the embodiment explained in connection with the settling device 38 of the displaceable platform 20. The Carrying frame 51 further has guide rollers 52 which can guide the technical auxiliary platform 50 in the shaft 3.

The technical auxiliary platform 50 is fixed in each case in the uppermost area, near the roof. It includes aids that allow a displacement of the technical auxiliary platform itself as well as a later lifting of the movable platform 20. Further, the technical sub-platform 50 includes other support points that are used to the shaft with shaft material, which for. Operation of the elevator system is required to complete. On the technical auxiliary platform 50, a first lifting means 56 is arranged in the embodiment of a cable pulling device. The first lifting means 56 acts on a rope 57. The cable 57 is attached at one end to the technical auxiliary platform, is guided by a support roller 67, which is arranged in the hanger 66 anchored in the end roof 70, and is guided to the first lifting means 56 or by drive elements of the first lifting means 56. The first lifting means 56 thus pulls itself and thus the entire technical auxiliary platform 50 on the cable 57 upwards. Furthermore, an auxiliary locking mechanism 58, which prevents any possible slipping off of the auxiliary platform, is also arranged on the technical auxiliary platform 50. The Hilfsgesperre 58 acts on another cable 59, which is also connected via a support roller 68 with the end roof 70 and fixed at one end to the technical auxiliary platform 50. The Hilfsgesperre 58 is designed together with the other cable 59 to hold the technical auxiliary platform 50 can. Furthermore, cable reels 60 are provided, which serve to roll up the ropes 57, 59, when the technical auxiliary platform is fixed by means of the supports 53. The suspensions and the arrangement of the guides 52 are chosen so that the technical auxiliary platform 50 can be moved approximately horizontally.

The technical auxiliary platform 50 includes further support points 55 on which a mounting platform 71 (see FIG. 8) or other auxiliary hoists can be suspended. Furthermore, the technical auxiliary platform 50 includes a second motorized lifting means 61, for example a chain hoist. The chain hoist is designed so that the displaceable platform or the machine room, preferably together with the attached cabin, can be moved. Next, a chain container 63 is arranged on the technical auxiliary platform 50, which serves for receiving the chain of the second motorized lifting means 61. In Figure 7 it is now apparent how the technical auxiliary platform 50 is moved upwards. The ends of the cables 57, 59 are pulled by the first lifting means 56 or guided by the auxiliary locking mechanism 58. At most, the ends of the ropes 57, 59 weighted by weights to ensure a safe tensioning of the ropes. After the technical auxiliary platform 50 has been raised, it is fastened near the end roof 50 (see FIG. 8) by means of the supports 53. Further, the ropes 57, 59 are relieved and rolled up on the cable reels 60.

At the technical auxiliary platform 50, the assembly platform 71 is now attached by means of associated support means 72. By means of the assembly platform 71 and any further auxiliary hoists now the guide rails 23, then to the lower, already installed guide rails, can be installed in the shaft. Also further shaft material can be installed. An operation of the elevator system running in the lower shaft area 3u is not disturbed during these activities. Marks (not shown), which can be used as straightening aids in accurately aligning the guide rails 23, are attached to the technical auxiliary platform.

After completion of the installation work in the corresponding shaft area, the assembly platform 71 can be removed or it can also be parked on the protective roof 41 of the sliding platform. As can be seen in FIG. 9, the assembly of displaceable platform 20 and the elevator car 43 is then moved from the lower temporary insertion position PI to the upper deployment position P2 by means of the second motorized lifting means 61 or the chain hoist and associated chain 62 shown in the example. The Sicherang and preparation of the movable platform 20 and the elevator car 43 is carried out, as shown in connection with the comments on the figures 1 to 3. Thus, the building can grow gradually, and the elevator can be extended by predetermined expansion steps S, respectively. The expansion steps S can be done from floor to floor. Usually, however, extension steps S in the range of 15 to 50 meters are selected.

The person skilled in the art will recognize further explanations. He can also use hydraulic lifters or drawbars instead of the chain hoist shown.

Claims

claims

1. Technical auxiliary platform for temporary use in an elevator shaft, comprising:

Supports or supports (53) which allow the technical auxiliary platform (50) to be placed in recesses or on support brackets of shaft walls of the hoistway (3),

a first motorized lifting means (56), which enables a displacement of the technical Hilisbühne (50) itself, and

a second motorized lifting means (61), which lifting a

sliding platform (20), which includes a machine room of an elevator system allows.

2. A technical Hii sbühne according to one of claim 1, wherein the second motorized lifting means (61) is a Kettenzuggerät which can lift the sliding platform (20) with engine room by means of a chain, and wherein the technical Hiifsbühne (50) a chain container (63 ), which can accommodate a running strand of the chain,

3. A technical auxiliary platform according to spoke 1 or 2, wherein the first motorized lifting means (56) is a cable pulling device which can cooperate with a in the elevator shaft (3) suspended rope (57) to lift the technical auxiliary platform (50).

4. Technical auxiliary platform according to claim 3, including an auxiliary locking mechanism (58), which is connected to a further cable (59) suspended in the elevator shaft (3).

can cooperate, and which in case of an unexpected downward movement of the technical auxiliary platform (50) blocks this downward movement.

5. Technical Hiifsbühne according to one of the preceding claims, including further support points (55) to which a mounting platform (71) or other auxiliary hoists can be attached.

6. technical Hiifsbühne according to one of the preceding claims, including Richtmarken, which for fastening Lotschnüren or as a target for a Laser Richtstrafal can be used.

7. A technical auxiliary platform according to claim 1, wherein the technical auxiliary platform (50)

Guide rollers (52) includes, which the technical auxiliary platform (50) the

Chess walls of the elevator shaft (3) along.

8. Elevator installation in a building, including:

a machine room, which is constructed on a displaceable platform (20) and which displaceable platform (20) is designed to be fixed to predetermined bases in an elevator shaft (3) of the building,

- An elevator car (43) which by means of support means (44) by a on the displaceable platform (20) arranged drive (39) in the shaft (3) can be moved, and

- A technical auxiliary platform (50) according to one of the preceding claims 1 to 7.

9. elevator installation according to claim 8, wherein the elevator shaft (3) by means of a closure roof (70) is limited upwards and this closure roof (70) a

Attachment of a hanger (66) allows which hanger (66) carrying rollers (67, 68) for supporting the cable (57) of the first motorized lifting means (56) and the further cable (59) of the Hilfsgesperres (58).

10. A method for expanding an elevator system to an extended

Bay area

wherein a technical auxiliary platform (50) according to one of claims 1 to 7 is displaced by means of the first motorized lifting means (56) in an uppermost region of the elevator shaft (3) and fixed in this uppermost region of the elevator shaft (3), wherein a displaceable platform ( 20), which is a machine room of

Elevator installation, by means of the arranged on the technical auxiliary platform (50) second motorized lifting means (61) from a lower temporary insertion position (PI) to an upper insertion position (P2) is moved.