PLATFORM FOR A LIFT SYSTEM FOR A BUILDING UNDER CONSTRUCTION

Description

[0001] The invention relates to a platform for an elevator system with an elevator shaft that increases in height during the construction phase of the building, and to such an elevator system. This elevator system can be used particularly on construction sites of high-rise buildings.

[0002] During the building's construction, the lower floors, which are built first, may already be sufficiently completed to be habitable or otherwise usable. For this purpose, the elevator system includes an elevator car that allows access to the floors already occupied as residential or commercial spaces during the building's construction phase. This construction elevator, with its elevator car, essentially grows with the building; that is, the usable lifting height of the construction elevator increases with the building's height or the height of the elevator shaft. This allows construction workers and building materials, or potentially occupants of apartments or commercial spaces already occupied before the building's completion, to be transported by the elevator car during the building's construction period. Such an elevator system is known from US 2016 / 0152442 A1.The elevator system features a machine platform that slides along the elevator shaft. The elevator car is suspended from this platform by means of support structures located within the shaft. The machine platform is raised to increase the usable lifting height of the elevator car within the shaft. To raise the machine platform, a platform movable along the shaft forms a support structure that can be braced against the shaft wall. This support structure, located above the machine platform, is raised to a height before the machine platform is raised. This height is then used by a first hoist located in the upper part of the elevator shaft. A second hoist, attached to the aforementioned support structure, is then used to raise the machine platform.

[0003] With the aforementioned state of the art, the elevator car from the construction phase can continue to be used for normal building use after completion. However, concepts are also known in which the elevator car from the construction phase is replaced by a new one after building completion. In such a case, the construction-phase elevator car can be designed as a self-propelled elevator car. Such a self-propelled elevator car, used in an elevator system for a building under construction with an elevator shaft that increases in height as the building grows during the construction phase, is described, for example, in WO 2019 / 238530 A1. Various platforms are also used in this design.

[0004] Elevator shafts in buildings can be constructed using climbing formwork. Climbing formwork is a type of discontinuous formwork system used for constructing tower-like structures. It allows for the concrete pouring of elevator shaft sections floor by floor. Water is used in the concreting process. However, unwanted water ingress into the shaft can also occur due to weather conditions, such as heavy rainfall. Furthermore, concrete contamination can also occur. Another problem with elevator systems featuring increasingly taller shafts is that temporary construction elevators can be damaged by falling objects during the building's construction phase. People inside the elevator shaft, such as maintenance personnel on the elevator car, can also be injured by falling objects.People who are at risk, for example, on an assembly platform from which the guide rails for guiding the elevator car are mounted, are also at risk.

[0005] EP 3 725 726 A1 discloses a method for changing the travel height of an elevator in a building under construction using a slipform. The slipform has a circumferential seal, which allows the cover of the slipform to be made watertight in order to reduce the ingress of rainwater.

[0006] It is an object of the present invention to overcome the disadvantages of the known design and, in particular, to create a platform for an elevator system of the type mentioned above, which reliably prevents water from entering the shaft space below the platform and which is easy to handle and operate. The platform should also protect against falling parts and dirt. Furthermore, the elevator system equipped with such a platform should be able to be adapted to the increasing height of the building in a simple and efficient manner.

[0007] According to the invention, these and other problems are solved with a platform having the features of claim 1. The platform for an elevator system for a building under construction, with an elevator shaft that increases in height during the construction phase, comprises a sealing arrangement for sealing or closing a gap between the platform and the elevator shaft. The elevator shaft can preferably be a substantially rectangular elevator shaft in plan view or in plan view.In this document, the term "elevator shaft" refers to a space within a building under construction, the height of which increases as construction progresses, and which is dimensioned and designed to allow at least one elevator car, typically one car and one counterweight, to move upwards and downwards along vertical tracks. Such an elevator shaft can be a single shaft enclosed by shaft walls with the aforementioned rectangular plan.

[0008] The sealing arrangement comprises side elements for sealing against the shaft walls. The sealing arrangement can have at least two, preferably at least three, and particularly preferably four side elements for sealing against the shaft walls, with each side element being assigned to one of the typically four shaft walls. The sealing arrangement further comprises corner elements for sealing the corner areas between the shaft walls. Depending on the number of side elements, the sealing arrangement can have at least one, preferably at least two, and particularly preferably three, and ideally four, corner elements.

[0009] The side elements can be abutted against the shaft walls by means of the corner elements. Because the platform features a sealing arrangement with side and corner elements, designed such that the side elements can be abutted against the shaft walls by means of the corner elements, several advantages can be achieved. The aforementioned gap can be reliably sealed. If necessary, the seal can be easily created and, if required, released manually or via appropriate control. The platform described here is particularly suitable for use in buildings where elevator shafts are constructed using climbing formwork and in buildings where rapid construction progress is crucial. The platform with such a sealing arrangement can preferably serve as an upper protective platform.The sealing arrangement can be used in combination with various types of platforms, which are inherently suitable for the aforementioned elevator system with an elevator shaft that increases in height as the building grows during construction. It is also conceivable that platforms could be retrofitted to such elevator systems.

[0010] The sealing arrangement can be designed in such a way that it can be moved between a rest position, in which the sealing arrangement is spaced away from the elevator shaft or the adjacent shaft wall and thus enables trouble-free vertical movement of the platform, and the aforementioned active position, in which the sealing arrangement contacts the shaft wall so that the gap between the platform and the elevator shaft is completely or almost completely bridged to close it.

[0011] The platform can be designed such that each corner element is equipped with a horizontal clamping element, in particular a quick-release clamp. With just a few simple steps, a person can easily achieve a high level of sealing manually. For example, the platform equipped with this sealing arrangement can serve as an upper protective platform, forming a protective roof for the assembly platform below. An elevator system for a building under construction, equipped with this protective platform, can be operated very quickly and efficiently with regard to sealing the shaft. Downtime, during which the elevator cannot be operated or work cannot be carried out on the assembly platform due to an open gap, can thus be significantly reduced. Thanks to the quick-release clamps, it is possible to quickly and reliably prevent water from entering the shaft space below the platform.

[0012] In the context of the present invention, quick-release fasteners are defined as connecting elements that enable a simple and quick connection of two adjacent elements; in this case, the connection of the corner element to the adjacent corner area of ​​the elevator shaft is concerned. For this purpose, lever clamps are suitable, for example, with which the corner element can be easily and with one hand clamped against the shaft corner and thus sealed. Of course, other designs of quick-release fasteners are also conceivable. Furthermore, the clamping force can often be adjusted by means of a threaded rod on the clamping element.

[0013] The horizontal clamping element can be designed as an angle clamp. Handling with an angle clamp is very simple.

[0014] The horizontal clamping element, designed as an angle clamp and / or a quick-release clamp, consists of a metallic base body with two legs positioned at right angles to each other and an actuating element slidably mounted within the base body. This actuating element can be moved for clamping via a quick-release fastener pivotally mounted within the base body. The quick-release fastener may include a backstop that prevents reverse movement against the closing direction. For further clamping, the quick-release clamp can be tightened additionally using a threaded rod, thereby increasing the clamping force and thus the sealing effect.

[0015] The horizontal clamping element can also be designed as a so-called metal angle clamp, which has a pivotally mounted spindle nut for moving a clamping jaw forwards and backwards with legs that are perpendicular to each other.

[0016] Each corner element can comprise an angle profile section, preferably made of sheet metal. The angle profile section can have inclined drainage sections for directing water inwards. Each corner element can thus comprise the angle profile section and the horizontal clamping element, preferably the quick-release clamp.

[0017] The angle profile section of the sealing assembly can have two preferably right-angled vertical wall sections and inclined drainage sections arranged below these wall sections and connected to them via bends for draining water inwards. "Inwards" refers to the direction towards the central area of ​​the elevator shaft or platform, while "outwards" refers to the direction of the shaft wall.

[0018] The angle profile section, made of sheet metal, can have additional stop sections that serve to abut the angle profile section against the shaft walls in the corner area. When in the active position, each stop section can make direct or indirect contact with the shaft wall. In the preferred indirect case, the angle profile section has a flexible sealing element that ensures wall contact and thus an optimal seal.

[0019] The respective corner element of the sealing arrangement can be equipped with a flexible sealing element, preferably elastomer-based and particularly preferably a rubber seal. The sealing element can have an L-shape in plan view. The sealing element can be a flat sealing profile arranged at the stop section and preferably fixed to the angle profile section by means of an adhesive bond, a vulcanization process, or mechanical fasteners. The rubber seal can have a wall thickness of approximately 2 to 30 mm, and preferably approximately 3 to 10 mm, enabling the seal to withstand the high mechanical stresses during the construction phase, for example, caused by abrasion against the shaft wall.

[0020] The sealing element can consist of an elastic polymeric material, preferably elastomers and particularly preferably rubber. The polymeric material can be selected from the group of thermoplastic elastomers, for example, olefin-based or urethane-based, cross-linked thermoplastic elastomers based on olefins, thermoplastic copolyesters, styrene block copolymers (SBS, SEBS, SEPS, SEEPS, and MBS), and thermoplastic copolyamides. Furthermore, it can contain materials containing polymers, preferably polypropylene, acrylonitrile butadiene styrene copolymer, polycarbonate, polyvinyl chloride, polymethyl methacrylate, polyethylene terephthalate, polyurethane, and the like, as well as mixtures of these materials.

[0021] With regard to sealing effect and water collection capacity, it can be advantageous if the corner elements are designed in such a way that they extend beyond the side elements in a vertical direction.

[0022] Another embodiment relates to a platform in which the respective side element comprises a sheet metal side part and a flexible sealing element. The side element can be made of a metal sheet and can include a flank wall inclined in at least one active position. The flexible sealing element is the elastomer-based sealing element already described above, and preferably a rubber seal.

[0023] For reliable operation, it can be advantageous if the sheet metal side panel is pivotally attached to the platform. By pivoting, the side element can be attached to and removed from the shaft wall.

[0024] Instead of the above-mentioned construction with sheet metal and rubber, the side element can essentially consist of just one component. In this case, the respective side element can have a flexible sealing element, preferably elastomer-based, whereby the sealing element not only contacts the shaft wall but also forms a flanking wall, so that water can be captured on the shaft wall side by the sealing element and channeled via the sealing element to a lower drip edge. The flanking wall is now no longer rigid but flexible. The side element could therefore consist more or less entirely of rubber.

[0025] The corner element can have attack sections that can be supported against the side elements. When the active position is established, the attack section pushes away its associated or adjacent side element, causing it to abut the shaft wall.

[0026] It can be advantageous if the respective side element has an attack surface created by a projection, for example by a hat profile, for the corner element(s), via which the corner element(s) can actuate the side element to create the active position. The aforementioned attack section can form the section of the corner element via which the corner element acts upon the side element.

[0027] Instead of assigning the projection to the side element, it would alternatively or possibly even additionally be conceivable that, conversely, the corner element has, for example, stamp-like attack pieces for striking the side elements to create the active position, via which attack pieces the side elements can be moved outwards to strike the shaft walls, e.g. in a pivoting movement.

[0028] The platform can have a flat roof structure to form a protective roof, with a drainage gap rectangular in plan view between the flat roof structure and the sealing arrangement. Water collected via the sealing arrangement can be easily drained away through this gap. The platform can be a preferably horizontal, walkable, slab-like flat roof structure. For this purpose, the platform can include a flat roof structure adapted to the shaft space and almost completely filling it in plan view. This flat roof structure can be slab-like or have a single slab. When the flat roof structure is installed or during the construction phase, it is preferably oriented horizontally. The sealing arrangement can be attached to the flat roof structure at an edge on the top surface of the flat roof.

[0029] The platform, which is vertically movable within the elevator shaft (which increases in height with the building's elevation), and which includes a sealing arrangement for sealing or closing the gap between the platform and the elevator shaft, can further comprise a water collection container located below the sealing arrangement. This water collection container allows for the easy collection of water and its controlled discharge as needed. Such a water collection container could also be advantageous for a sealing arrangement without the initially claimed solution involving side elements and separate corner elements.

[0030] The water collection container can be designed as a circumferential channel. This channel can preferably be positioned below the drainage gap between the flat roof structure and the sealing arrangement in the platform.

[0031] The flat roof structure can include a roof panel that acts as a protective roof, with a drip edge at its perimeter for controlled water drainage. Water can drip from the drip edge into the gutter.

[0032] A pipe, for example in the form of a water hose, can be connected to the water collection container and especially to the channel, through which the water can be carried away from the platform.

[0033] The water collection container may have a closable drain opening for draining the water collected in the water collection container.

[0034] Another aspect of the invention relates to an elevator system for a building under construction, with an elevator shaft that increases in height as the building grows during the construction phase, comprising the platform described above.

[0035] Finally, a further aspect of the invention relates to a method for constructing an elevator system for a building under construction, the elevator shaft of which increases in height during the construction phase as the building grows taller. The usable lifting height of the elevator system is adapted to the increasing height of the building by performing at least one lifting operation. In this operation, for example, a machine platform with an elevator drive and an elevator car suspended from the machine platform by means of lifting means are raised in the elevator shaft by means of a lifting device. The method includes the use of a platform equipped with a sealing arrangement, which comprises side elements for sealing against the shaft walls and corner elements for sealing the corner areas between the shaft walls. The side elements can be abutted against the shaft walls by means of the corner elements.The seal is activated during the construction phase. In the corresponding active position, the sealing assembly closes the gap between the platform and the elevator shaft. Moving the corner elements towards the corners creates the active position, in which the side elements, via the corner elements, abut the shaft walls, thus closing the gap between the platform and the elevator shaft during the construction phase. For a lifting operation, the seal is moved to the rest position. Moving the corner elements back returns the sealing assembly to its initial position, in which the sealing assembly is spaced away from the elevator shaft, allowing the platform to move upwards without obstruction. After the lifting operation, the seal is moved back into the active position to continue the construction phase.

[0036] Further advantages and individual features will become apparent from the following description of exemplary embodiments and from the drawings. These show: Fig. 1 a schematic representation of an elevator system for a building under construction with an elevator shaft that increases in height as the building grows during the construction phase; Fig. 2 a top view of a section of a platform and a corner section of the elevator shaft of the elevator system as shown. Fig. 1 , wherein the platform includes a sealing arrangement, Fig. 3 a perspective view of the corner area of ​​a platform with a sealing arrangement, Fig. 4 a perspective view of a platform of such an elevator system that can be moved vertically with increasing building height according to a further embodiment, Fig. 5 a detailed view of the platform made of Fig. 4 , and Fig. 6 a perspective view of another platform.

[0037] Fig. 1 Figure 1 schematically shows an elevator system 1 for a building 10 under construction. The building 10 includes an elevator shaft 2, which increases in height as the building progresses during construction. An elevator car 4 is installed in the elevator shaft 2. During vertical travel, the elevator car 4 is guided by at least one guide rail 3. Above the elevator car 4, the elevator system 1 has an arrangement for equipping the upward-growing elevator shaft 2, in particular with guide rails for the guide rail 3. This arrangement comprises a safety platform 7, a machine platform 6, and an assembly platform 5 located between these two platforms 6 and 7. The assembly platform 5 is the platform from which the guide rail 3 is extended upwards. The assembly platform 5 serves as a work platform for assembly personnel.Furthermore, the assembly platform 5 can also be used as a means of transport for other elevator components to be installed, in addition to the guide rails.

[0038] In Fig. 1 For the sake of simplicity, only one guide rail section 3 is shown. Two opposing guide rail sections are preferably used to guide the elevator car 4. The elevator mentioned above typically includes a counterweight (not shown here) in addition to the elevator car. Several guide rail sections are necessary for optimal linear guidance of the elevator car and the counterweight, with each guide rail section consisting of a series of guide rail profile sections.

[0039] Up to the area of ​​elevator shaft 2, which extends over several floors, further building parts are located outside of elevator shaft 2. Fig. 1 Not shown. A special feature of elevator shaft 2 is its vertical extension, which in certain elevator shafts can extend practically the entire height of the building. Building 10 can include one or more such elevator shafts 2. In the present embodiment, elevator shaft 2 is designed for an elevator with a car and counterweight. However, elevator shaft 2 can also be designed for multiple elevators. Furthermore, elevator shaft 2 could also be designed for a self-propelled construction-phase elevator car.

[0040] Elevator cabin 4 enables the transport of people and goods to and from the lower floors even during the building's construction phase. In particular, the elevator cabin can be used to transport construction workers and building materials. It can also be used to transport occupants of apartments or commercial spaces already occupied before the building's completion, in compliance with regulations, between at least the floors to which these spaces are assigned.

[0041] The elevator shaft 2 is divided into several sections in the vertical direction. The lower section of the elevator shaft 2, located below the machine platform 6 with a drive 8 for the elevator, is already equipped with the necessary guide rails for the linear guidance of the elevator car and the elevator's counterweight for the completed building. In this section, the elevator system 1 for the building 2 under construction features a conventional elevator car 4 and a counter-rotating counterweight (not shown). However, the elevator car 4 presented here could also be replaced by a self-propelled construction-phase elevator car 4 for transporting people or goods during the construction phase of building 10. In this case, the machine platform 6 could be replaced by a different platform, specifically one without a drive unit for the elevator.

[0042] From the assembly platform 6, at least one guide rail section 3 will be extended upwards in a rail assembly phase. This rail assembly phase is in Fig. 1 As shown. In addition to the installation of guide rails, further work for the installation of the shaft equipment or other work steps can be carried out from the assembly platform 5. In the phase referred to simply as the rail installation phase, the assembly platform 5 can be moved vertically up or down to the desired position using cables. The assembly platform 5 is suspended from the protective platform 7 by the cable-based lifting device 23.

[0043] The protective platform 7 is temporarily fixed in an upper section of the existing elevator shaft 2. The protective platform 7 is designed as a support structure. This support structure serves, among other things, to support the lifting device 23, which moves the assembly platform 6 up and down. The protective platform 7 also has means 24 for lifting the machine platform 6. Furthermore, the protective platform 7 is designed to protect people and equipment in the elevator shaft 2 – particularly on the aforementioned assembly platform 5 – from objects that might fall during the construction work taking place on building 2.

[0044] The rail assembly phase can be followed by a growth phase. After completion of the rail assembly phase and once the elevator shaft 2 has grown sufficiently high as construction of building 2 progresses, the protective platform 7 must be positioned at the next higher level. The protective platform 7 is lifted to the next higher level, for example, using a construction crane, thus allowing it to grow along with the increasing height of the elevator shaft 2 as the building grows. However, it may also be possible to move the upper protective platform 7 to the next higher level using other means and without the use of a crane. Once the next higher level is reached, the protective platform 7 is temporarily fixed in the elevator shaft 2 again. The machine platform 6 can then be lifted to the next higher level. For this purpose, the protective platform 7 has lifting devices 24, such as a chain hoist.The chain hoist is designed to raise the machine platform 7, preferably together with the attached elevator car 4, for a lifting operation. However, moving the machine platform 7 to its upper operating position could also be accomplished using other lifting devices such as a crane, winch, hydraulic jack, or strand jack. Other elevator systems are known for buildings under construction, where the elevator shaft rises in height as the building grows during the construction phase, and these systems utilize additional or alternatively designed platforms. The specific solution for sealing the shaft space, shown and described in detail below using platform 7 as an example, is fundamentally applicable to all types of platforms used in such elevator systems.

[0045] Platform 7 of the elevator system according to Fig. 1 It can also be assigned to or even be part of a climbing formwork system. The climbing formwork includes (not shown) formwork for concreting. Platform 7 can therefore be designed as a climbing formwork platform for the floor-by-floor construction of concreting sections of the building core encompassing elevator shaft 2. The climbing formwork platform can have integrated climbing drives and be designed as a self-climbing formwork platform. As in Fig. 1 As shown, in another variant the climbing formwork platform can be suspended floor by floor in anchors in the shaft walls.

[0046] Platform 7 has a horizontal roof structure for covering the elevator shaft 2, on which a sealing arrangement designated 11 is arranged. The sealing arrangement 11 serves to seal or close the gap between platform 7 and elevator shaft 2. The seal, designed as a circumferential sealing arrangement, is attached to the edge of platform 7.

[0047] The in the Figuren 2 bis 4 The sealing arrangement 11 shown and explained in detail below reliably and simply prevents water, concrete and objects from entering the shaft space below the platform.

[0048] Fig. 2 Figure 1 shows a corner region of the elevator shaft 2, where the shaft walls 12, 13, which are perpendicular to each other, enclose a corner. The sealing arrangement 11 of the platform 7 comprises side elements 14, 15 for sealing against the shaft walls designated 12 and 13. The sealing arrangement 11 further comprises a corner element 16 for sealing the corner region between the shaft walls 12, 13. Typically, the sealing arrangement 11 has four such side elements 12, 13, each side element being assigned to one shaft wall; and four such corner elements 16, each corner element being assigned to one of the four corner regions of the elevator shaft. The side elements 14, 15 can be abutted against the shaft walls 12, 13 by means of the corner elements 16. Fig. 2 The sealing assembly 11 is in a position in which the side elements 14, 15 and the corner element 16 are in contact with the elevator shaft 2 and thus seal it. This position is subsequently also referred to as the active position.

[0049] To create the active position, the sealing arrangement 11 has a horizontal clamping element in the form of a quick-release clamp 16. When the quick-release clamp 16 is closed, it first acts on the corner element 16, which then presses the two adjacent side elements 14, 15 against the respective shaft walls 12, 13, thus ensuring the sealing effect.

[0050] The quick-release clamp 16 comprises a metallic base body 34 with two legs 35, 36 arranged at right angles to each other and an adjusting element 37 slidably mounted in the base body, which can be moved for clamping via a quick-release fastener 38 pivotally mounted in the base body. The clamping force can be adjusted by means of a threaded rod 39 using a toggle handle 40. In this way, the platform 7 can be sealed manually very easily and quickly. Of course, other means could also be used to move the corner element 16 towards the corner so that the side elements abut the shaft walls. For example, it would be conceivable to use a motorized adjustment device to move the corner element 16.

[0051] Fig. 3 Figure 1 shows a platform 7 for an elevator system for a building under construction, with an elevator shaft that increases in height as the building grows during the construction phase, and a sealing arrangement 11 for sealing or closing the gap between the platform and the elevator shaft. The sealing arrangement 11 is shown in Fig. 3 For better understanding of the structure, no means for moving the corner element 16 are shown. The sealing arrangement 11 could be motor-operated. However, it may also be advantageous here to use a manual adjustment device, such as the quick-release fastener of the exemplary embodiment according to [reference to figure]. Fig. 2 to use.

[0052] Each corner element 16 comprises an angle profile section 19 made of sheet metal. This angle profile section 19, which forms an L shape in plan view, has two vertical wall sections 29 connected at right angles to each other, to which downwardly inclined drainage sections 28 are attached. The drainage sections 28 serve to drain water inwards. The angle profile section 19 also has stop sections 31, which serve to abut the angle profile section against the shaft walls in the corner area. A flat rubber seal 25 is attached to the outer sides of the stop sections 31. When in the active position, the stop sections 31 contact the respective shaft walls via this rubber seal 25. However, other elastic polymeric materials are also conceivable to form a flexible sealing element instead of the rubber seal. Other shapes for the sealing element are also conceivable.Instead of a sealing body designed as a flat sealing profile or a sealing strip, more complex sealing bodies, such as hollow profile seals, would be conceivable.

[0053] The angle profile section 19 with stop sections 31, wall sections 29 and discharge sections 28 can be manufactured from two sheet metal blanks, which are joined together by welding after bending processes. The wall sections 29 are then connected to each other via a diagonal reinforcing plate to stiffen the angle.

[0054] The side elements 14, 15, located further out on platform 7 compared to corner element 16, have a similar construction. These side elements also incorporate sheet metal components. In this case, each side element 14, 15 consists of a sheet metal side part 45 and a rubber seal 26. The sheet metal side part 45 has an inclined flank wall 30 and an adjoining upper vertical wall section, which forms the stop section 32 of the side part 14, 15. A flat rubber seal 26 is attached to the outside of the stop section 31, which, when in the active position, contacts the respective shaft wall. The sheet metal side part 45 can be pivotally mounted to platform 7. The side element 14, 15 has an attack piece for the corner element 16 created by a hat profile 27, via which the corner element 16 acts on the side elements 14, 15 to create the active position.The corner element 16 extends beyond the side elements 14, 15 in a vertical direction.

[0055] Furthermore, it is from Fig. 3 It is evident that a drainage gap 21 is formed between the flat roof structure 33, which is simplified to a single panel, and the sealing arrangement 11. This drainage gap, which is rectangular in plan view, serves to easily drain away water collected by the sealing arrangement 11. The water flows through the drainage gap 21 into the surrounding gutter 20. From this water collection container 20, water can be conveyed to the next floor, for example, via a hose-like drain pipe, and discharged into the sewer system there. Instead of a single panel, the flat roof structure could also be made up of multiple parts, such as planks arranged side by side.

[0056] The Figuren 4 and 5Figure 1 shows a platform 7 with an alternative sealing arrangement 11. In this sealing arrangement 11, the corner elements 16 for sealing the corner areas between the shaft walls are designed similarly to the previous embodiment. The sealing arrangement 11 differs from the previous embodiment, particularly in the design of the side elements 14, 15 for sealing the shaft walls. Here, the side elements 14, 15 essentially consist of a flat rubber profile extending vertically from the bottom of the platform 7 to its upper end. Each side element 14, 15 thus has a rubber seal 43, which not only contacts the shaft wall but also forms a flanking wall 44, so that water can be captured on the shaft wall side by means of the sealing element and directed via the rubber seal 43 to a lower drip edge.

[0057] Fig. 4 shows a possible constructive design of a protective platform 7, which is used in elevator systems according to Fig. 1 Platform 7 has movable support elements that can be used to secure the protective platform 7 in recesses in the shaft walls or placed on the shaft floor at the shaft door. Also visible is the motorized lifting device 24 with the chain hoist. The chain of the chain hoist is stored in a chain storage unit. The chain hoist can be used to move the movable machine platform and the elevator car from a lower temporary operating position to the next upper operating position.

[0058] Constructive details of the sealing arrangement 11 are in particular derived from Fig. 5 The rubber seal 43 is recognizable. A box profile 27 is attached to the flat rubber seal 43 as an attachment point for the corner element 16. The rubber seal 43 is sandwiched between the inner box profile 27 and an outer flat profile.

[0059] Out of Fig. 5 A drainage gap 21 is also visible between the flat roof structure 33 and the sealing arrangement 11. The water enters a circumferential channel (not shown here) via the drainage gap 21.

[0060] Platform 7 has a generally rectangular shape when viewed from above. Several floor drains 41 are provided in the horizontal flat roof structure 33 ( Fig. 4 It is further evident that the flat roof structure 33 is divided into several compartments defined by partition walls 42. Water from the floor drains 41 can also be collected and directed into the water reservoir and from there, or even directly via the drain hose, discharged. To form an advantageous, slab-like horizontal flat roof structure 33, planks (not shown here), for example in the form of wooden boards, can be provided. Thanks to such planks, it is ensured that the flat roof structure is safe to walk on. The partition walls 42 can reinforce and stiffen the floor. The planks can extend between the respective partition walls 42 and be supported by these partition walls if the partition walls are designed as load-bearing components of the flat roof structure.

[0061] In the active position, when the corner elements 16 of the sealing arrangement 11 move the side elements 14, 15 outwards, the corner elements 16 are pressed against the corner areas and at the same time the side elements 14, 15 are pressed against the respective shaft walls, thus ensuring the desired sealing effect.

[0062] The in Fig. 4 The floor drains 41 shown can be arranged in rubber mats or other flexible, flat floor elements. Due to the weight of the relatively heavy floor drains 41, which are formed from metal components, the floor elements can be curved downwards at specific points, so that water does not accumulate and proper drainage through the floor drains is ensured.

[0063] The sealing assembly 11 is spaced away from the shaft wall in its rest position, thus enabling unimpeded vertical movement of the platform. For example, during the rail installation phase, the shaft space must be secured and water prevented from entering the area below the platform. For this purpose, the sealing assembly 11 is moved into its active position. In the active position, the sealing assembly 11 is moved outwards relative to its rest position, so that it contacts the shaft wall by abutting it to close the gap between platform 7 and elevator shaft 2.

[0064] Fig. 6 Figure 7 shows another platform for an elevator system for a building under construction, with an elevator shaft 2 that increases in height as the building grows during the construction phase. Platform 7 has a sealing arrangement with side elements 14, 15 for sealing against the shaft walls. The horizontal, walkable flat roof structure 33 has a large number of planks. These planks can be made of wooden boards.

[0065] Flat roof structure 33 can further include a floor located below the planks, which can collect water seeping between the planks. This floor (not shown here) can have floor drains (see figure). Fig. 4 The flat roof structure 33 is surrounded by a trough-like water collection container 20. A waterproof membrane can be arranged between the trough and the flat roof structure 33, preventing water from seeping under the platform. The respective side elements 14, 15 are designed to pivot, as indicated by the arrows, and can be swung to abut against the shaft walls. In this case, the respective side elements 14, 15 consist of a sheet metal part 45 defining one flank, to which a rubber seal 26 is attached at its upper end. The sealing arrangement of this platform 7 has no corner elements. Thanks to the water collection container 20 in combination with the side elements 14, 15, a fairly good protective and sealing effect can already be achieved. However, this platform 7 could also be fitted with corner elements, as previously shown in the Figuren 2 bis 4as described, equipped and retrofitted in such a way that the sealing effect could be significantly improved once again.

Claims

1. A platform for an elevator system (1) for a building (10) which is under construction, comprising an elevator shaft (2) which becomes taller as the building height increases during the construction phase of the building, wherein the platform (6, 7) comprises a sealing arrangement (11) for sealing or closing a gap between the platform and the elevator shaft (2), characterized in that the sealing arrangement (11) has side elements (14, 15) for sealing with respect to the shaft walls (12, 13) and corner elements (16) for sealing with respect to the corner regions between the shaft walls (12, 13), characterized in that the side elements (14, 15) can be struck against the shaft walls (12, 13) by means of the corner elements (16).

2. The platform according to claim 1, characterized in that a horizontal clamping element, in particular a quick-action clamp (18), is provided for each corner element (16).

3. The platform according to claim 2, characterized in that the horizontal clamping element (18) is formed as an angle clamp.

4. The platform according to one of claims 1 to 3, characterized in that the corresponding corner element (16) comprises an angle profile part (19) preferably made of sheet metal.

5. The platform according to claim 3 or 4, characterized in that the angle profile part (19) has inclined drainage portions (28).

6. The platform according to one of claims 1 to 5, characterized in that the corresponding corner element (16) is equipped with a flexible sealing body, which is preferably elastomer-based, and particularly preferably with a rubber seal (25).

7. The platform according to one of claims 1 to 6, characterized in that the corner elements (16) are designed such that they project beyond the side elements (14, 15) in the vertical direction (z).

8. The platform according to one of claims 1 to 7, characterized in that the corresponding side element (14, 15) has a sheet metal side part with an inclined flank wall (30) and a flexible sealing body, which is preferably elastomer-based, and particularly preferably has a rubber seal (26).

9. The platform according to claim 8, characterized in that the sheet metal side part is pivotably fastened to the platform.

10. The platform according to one of claims 1 to 7, characterized in that the corresponding side element (14, 15) has a flexible sealing body (43), which is preferably elastomer-based, and particularly preferably has a rubber seal, wherein the sealing body (43) forms a flank wall (44).

11. The platform according to one of claims 1 to 10, characterized in that the corresponding side element (14, 15) has an engagement piece (27), created by a projection, for the corner element(s) (16).

12. The platform according to one of claims 1 to 11, characterized in that it has a flat roof structure (33), wherein a drainage gap (21) is formed between the flat roof structure (33) and the sealing arrangement (11).

13. The platform according to one of claims 1 to 12, characterized in that it has a water collection container (20) arranged below the sealing arrangement (11), wherein the water collection container (20) is preferably designed as a circumferential gutter.

14. An elevator system (1) for a building (10) which is under construction, comprising an elevator shaft (2) which becomes taller as the building height increases during the construction phase of the building, comprising at least one platform (6, 7) according to one of claims 1 to 13, which platform (6, 7) is equipped with a sealing arrangement (11) for sealing or closing a gap between the platform and the elevator shaft (2).

15. A method for erecting an elevator system (1) for a building (10) which is under construction, comprising an elevator shaft (2) which becomes taller as the building height increases during the construction phase of the building, characterized in that a platform (6, 7) equipped with a sealing arrangement (11) comprising side elements for sealing with respect to the shaft walls (12, 13) and corner elements (16) for sealing with respect to corner regions between the shaft walls is used, in particular according to one of claims 1 to 14, which sealing arrangement (11) creates an active position by moving the corner elements (16) in the direction of the corner regions, so that the sealing arrangement (11) seals or closes a gap between the platform and the elevator shaft during the construction phase, which sealing arrangement (11) is brought into an initial position for a lifting operation by moving the corner elements (16) back, in which initial position the sealing arrangement (11) is spaced apart from the elevator shaft (2), and which sealing arrangement (11) is returned to the active position after the lifting process.