Platform for an elevator system for a building which is under construction

Abstract

The invention relates to an elevator system (1) for a building (10) which is under construction, having an elevator shaft (2) which becomes taller as the building height increases over the course of the construction phase of the building. The elevator system comprises a platform (7) with a seal assembly (11) for sealing or closing a gap between a platform and the elevator shaft (2). The seal assembly (11) has lateral elements (14, 15) for providing a seal with respect to the shaft walls (12, 13) and corner elements (16) for providing a seal with respect to the corner regions between the shaft walls (12, 13), and the lateral elements (14, 15) can be fixed against the shaft walls (12, 13) by means of the corner elements (16) using rapid-acting clamp elements (18).

Description

[0001] Platform for an elevator system for a building under construction

[0002] 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 in particular on construction sites for high-rise buildings.

[0003] During the construction of the building, the lower floors constructed first may already be sufficiently finished to be habitable or usable for another purpose. For this purpose, the elevator system comprises an elevator car which can be used to access the floors already used as residential or commercial space during the construction phase of the building. The construction phase elevator with this elevator car grows with the building to a certain extent, i.e. the usable lifting height of the construction elevator increases with the increasing height of the building or the elevator shaft. This means that during the construction period, construction workers and building materials or, if applicable, users of apartments or commercial premises already occupied before the building is completed can be transported in the elevator car. Such an elevator system is known from US 2016 / 0152442 A1.The elevator system has a machine platform that can be moved along the elevator shaft and from which the elevator car is suspended via support means arranged in the elevator shaft. The machine platform is raised on a rotating basis to increase the usable lifting height of the elevator car in the elevator shaft. To raise the machine platform, a platform that can be moved along the elevator shaft is provided to form a support structure that can be supported on the wall of the elevator shaft. This support structure, arranged above the machine platform, is raised by a first lifting device mounted in the upper area of ​​the elevator shaft to a height at which the platform supported by this support structure can be raised a certain distance. A second lifting device, arranged on the aforementioned support structure, is used to raise the machine platform.

[0004] With the above-mentioned state of the art, the elevator car from the construction phase can continue to be used for normal use after the building has been completed. However, concepts are also known in which the elevator car from the construction phase is replaced by a new elevator car after the building has been completed. The construction phase elevator car can be designed as a self-propelled elevator car for such a case. Such a self-propelled elevator car, which is used in an elevator system for a building under construction with an elevator shaft that becomes higher as the building height increases during the construction phase, is known, for example, from WO 2019 / 238530 A1. Here, too, various

[0005] Platforms are used.

[0006] Elevator shafts in buildings can be constructed using climbing formwork. Climbing formwork is a discontinuous formwork system and is used for the construction of tower-like structures. It allows for the concrete pouring of elevator shafts floor by floor. Water is used during concreting. Unwanted water ingress into the shaft can also occur due to weather conditions, such as heavy rainfall. Concrete can also cause contamination. A further problem with elevator systems with increasingly taller elevator shafts is that, during the construction phase of the building, the construction-phase elevators can be damaged by falling objects. People inside the elevator shaft, such as maintenance personnel on the elevator car, can also be injured by falling objects.People who are, for example, on an assembly platform from which the guide rails for guiding the elevator car are installed are also at risk.

[0007] It is an object of the present invention to overcome the disadvantages of the known technology and, in particular, to provide 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.

[0008] According to the invention, these and other objects are achieved 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 of the building as the building's height increases, 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 ground plan.In this document, the term "elevator shaft" is understood to mean a space in a building under construction, the height of which increases in accordance with the progress of construction, the space being dimensioned and designed in such a way that at least one elevator car of an elevator, usually one elevator car and one counterweight of each elevator, can move upwards and downwards along vertical travel paths. Such an elevator shaft can be a single shaft enclosed by shaft walls with the aforementioned rectangular floor plan.

[0009] The sealing arrangement comprises side elements for sealing with respect to the shaft walls. The sealing arrangement can comprise at least two, preferably at least three, and particularly preferably four side elements for sealing with respect to the shaft walls, with each side element being assigned to one of the generally four shaft walls. The sealing arrangement further comprises corner elements for sealing with respect to the corner areas between the shaft walls. Depending on the number of side elements present, the sealing arrangement can comprise at least one, preferably at least two, particularly preferably three, and ideally four corner elements.

[0010] The side elements can be attached to the shaft walls using the corner elements. The fact that the platform has a sealing arrangement with side elements and corner elements, which sealing arrangement is designed such that the side elements can be attached to the shaft walls using the corner elements, offers a number of advantages. The aforementioned gap can be reliably sealed. If necessary, the sealing effect can be easily created and, if necessary, removed manually or by appropriate control. The platform described here is particularly suitable in connection with buildings where the construction of elevator shafts is carried out using climbing formwork and in buildings where rapid construction progress is particularly important. The platform with this type of sealing arrangement can preferably be an upper protective platform.The sealing arrangement can be used in combination with various platforms, which are typically used in the elevator system mentioned above, with an elevator shaft that increases in height as the building's construction progresses. It is also conceivable that platforms of such elevator systems could be retrofitted.

[0011] 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 from the elevator shaft or the adjacent shaft wall and thus enables trouble-free vertical movement of the platform, and the already mentioned 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.

[0012] The platform can be designed in such a way that a horizontal clamping element, in particular a quick-action clamp, is provided for each corner element. With just a few simple steps, one person can easily achieve a high sealing effect manually. For example, the platform equipped with the sealing arrangement can be an upper protective platform that forms a protective roof for the assembly platform below. An elevator system for a building under construction with this protective platform can be operated very quickly and efficiently with regard to sealing the shaft. Downtimes during which the elevator cannot yet be operated due to the open gap or no work can be carried out on the assembly platform can be significantly shortened. Quick-action clamps can quickly and reliably prevent water from entering the shaft space below the platform.

[0013] In the context of the present invention, quick-release clamps refer to connecting devices that enable a simple and quick connection between two adjacent elements. In this case, this refers to the connection of the corner element to the adjacent corner area of ​​the elevator shaft. So-called lever clamps, for example, are suitable for this purpose, with which the corner element can be easily clamped against the shaft corner with one hand, thus sealing it. Of course, other quick-release clamp designs are also conceivable. In addition, the clamping force can often be adjusted using a threaded rod on the clamping element.

[0014] The horizontal clamping element can be designed as an angle clamp. Handling with an angle clamp is very easy.

[0015] The horizontal clamping element, designed as an angle clamp and / or a quick-action clamp, can have a metal base body with two legs positioned at right angles to each other and a movable actuating element mounted within the base body, which can be moved for clamping via a quick-action clamp articulated within the base body. The quick-action clamp can include a backstop that prevents reverse movement in the opposite direction to the closing direction. For further clamping, the quick-action clamp can be tightened using a threaded rod, thus increasing the clamping force and thus the sealing effect.

[0016] The horizontal clamping element can also be designed as a so-called metal angle clamp, which has an articulated spindle nut for moving a clamping jaw forwards and backwards with legs at right angles to each other.

[0017] The respective corner element can comprise an angle profile part, preferably made of sheet metal. The angle profile part can have inclined drainage sections for draining water inwards. The respective corner element can thus comprise the angle profile part and the horizontal clamping element, preferably the quick-action clamp. The angle profile part of the sealing arrangement can have two vertical wall sections, preferably connected at right angles to one another, and inclined drainage sections arranged below the wall sections and connected to them via bevels, for draining water inwards. Directed inwards refers to the central region of the elevator shaft or platform, while outwards refers to the shaft wall.

[0018] The angle profile part, made of sheet metal, can also have stop sections that serve to attach the angle profile part to the shaft walls in the corner area. When in the active position, the respective stop section can contact the shaft wall directly or indirectly. In the preferred indirect case, the angle profile part has a flexible sealing body that ensures wall contact and thus an optimal sealing effect.

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

[0020] The sealing body can be made of an elastic polymeric material, with elastomers and particularly preferably rubber being preferred as polymeric materials. The polymeric material can be selected from the group of thermoplastic elastomers, for example, olefin-based or urethane-based, crosslinked olefin-based thermoplastic elastomers, thermoplastic copolyesters, styrene block copolymers (SBS, SEBS, SEPS, SEEPS, and MBS), and thermoplastic copolyamides. Furthermore, it can contain plasticizer-containing materials, 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 the sealing effect and water collection capacity, it can be advantageous if the corner elements are designed in such a way that they project beyond the side elements in the vertical direction.

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

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

[0024] Instead of the above-mentioned construction with sheet metal and rubber, the side element can also be essentially constructed from a single component. In this case, the respective side element can have a flexible sealing body, preferably made of elastomer. The sealing body not only contacts the shaft wall but also forms a flank wall, so that water can be captured by the sealing body on the shaft wall side and guided via the sealing body to a lower drip edge. The flank wall is now no longer rigid, but flexible. The side element could thus be made more or less entirely of rubber.

[0025] The corner element can have engaging sections that can be supported on the side elements. When the active position is created, the engaging section pushes away the associated or adjacent side element and ensures that the side element strikes the shaft wall.

[0026] It may be advantageous if the respective side element has an engagement section for the corner element(s) created by a projection, for example, a hat profile, through which the corner element(s) can act upon the side element to establish the active position. The aforementioned engagement section can form the section of the corner element through which the corner element acts upon the side element.

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

[0028] The platform can have a flat roof structure to form a protective roof, wherein a drainage gap that is rectangular in plan view is formed between the flat roof structure and the sealing arrangement. Water collected can be easily drained away via the drainage gap using the sealing arrangement. The platform can be a preferably horizontal, walkable, slab-like flat roof structure. For this purpose, the platform can comprise a flat roof structure that is adapted to the shaft space and almost completely fills it in plan view. This flat roof structure can be slab-like or have a slab. When the flat roof structure is installed or during the construction phase, it is preferably aligned horizontally. The sealing arrangement can be attached to the flat roof structure in an edge area on the top side of the flat roof.

[0029] The vertically movable platform in the elevator shaft, which increases with the building's height, and which has a sealing arrangement for sealing or closing the gap between the platform and the elevator shaft, can further include a water collection container located below the sealing arrangement. The water collection container allows water to be easily collected and drained away as needed. Such a water collection container could also be advantageous for a sealing arrangement without the initially claimed solution with the side elements and separate corner elements.

[0030] The water collection container can be designed as a circumferential gutter. This gutter 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 have a roof plate that provides a protective roof, with a drip edge located at the edge of the roof 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 in particular to the gutter, through which the water can be led away from the platform.

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

[0034] A further aspect of the invention relates to an elevator system for a building under construction with an elevator shaft which becomes higher as the building height increases during the construction phase of the building and which comprises the platform described above.

[0035] Finally, a further aspect of the invention relates to a method for erecting an elevator system for a building under construction with an elevator shaft that becomes higher as the building's height increases during the construction phase, wherein a usable lifting height of the elevator system is adapted to an increasing height of the building by performing at least one lifting process, during which lifting process, for example, a machine platform with an elevator drive and an elevator car suspended from the machine platform via support means are raised in the elevator shaft by means of a lifting device. The method comprises the use of a platform equipped with a sealing arrangement, which sealing arrangement comprises side elements for sealing with respect to the shaft walls and corner elements for sealing with respect to the corner regions between the shaft walls, wherein 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 seals the gap between the platform and the elevator shaft. By moving the corner elements towards the corner areas, the active position is created. In this position, the side elements abut against the shaft walls using the corner elements, so that the sealing assembly closes the gap between the platform and the elevator shaft during the construction phase. The seal is returned to the rest position for a lifting process. By moving the corner elements back, the sealing assembly is returned to its starting position, in which the sealing assembly is spaced away from the elevator shaft, allowing the platform to be moved upwards without disruption. After the lifting process, the seal is returned to the active position to continue the construction phase.

[0036] Further advantages and individual features are evident from the following description of exemplary embodiments and the drawings. They show:

[0037] Fig. 1 is a schematic representation of an elevator system for a building under construction with an elevator shaft that becomes higher as the building height increases during the construction phase,

[0038] Fig. 2 is a plan view of a partial area of ​​a platform and a corner area of ​​the elevator shaft of the elevator installation in the manner according to Fig. 1, wherein the platform comprises a sealing arrangement,

[0039] Fig. 3 is a perspective view of the corner area of ​​a platform with a sealing arrangement,

[0040] Fig. 4 is a perspective view of a platform of such a lift system which can be moved vertically with increasing building height, according to a further embodiment,

[0041] Fig. 5 a detailed view of the platform from Fig. 4, and

[0042] Fig. 6 a perspective view of another platform.

[0043] Fig. 1 shows a schematic diagram of an elevator installation 1 for a building 10 under construction. The building 10 comprises an elevator shaft 2 which becomes higher as the building progresses in construction. An elevator car 4 is installed in the elevator shaft 2. During vertical travel, the elevator car 4 is guided on at least one guide rail strand 3. Above the elevator car 4, the elevator installation 1 has an arrangement for equipping the upwardly growing elevator shaft 2, in particular with guide rails for the guide rail strand 3. This arrangement comprises a protective platform 7, a machine platform 6 and an assembly platform 5 arranged between these two platforms 6, 7. The assembly platform 5 is the platform from which the guide rail strand 3 is extended upwards. The assembly platform 5 serves as a working platform for assembly personnel.Furthermore, the assembly platform 5 - in addition to the guide rails - can also be used as a transport means for other elevator components to be assembled.

[0044] For the sake of simplicity, only one guide rail section 3 is shown in Fig. 1. Two opposing guide rail sections are preferably used to guide the elevator car 4. The latter elevator typically includes a counterweight (not shown here) in addition to the elevator car. For optimal linear guidance of the elevator car and the counterweight, multiple guide rail sections are required, with each guide rail section consisting of a series of guide rail profiles.

[0045] Apart from the area of ​​the elevator shaft 2 extending over several floors, other building parts outside the elevator shaft 2 are not shown in Fig. 1. What is special about the elevator shaft 2 is its vertical extension, which in certain elevator shafts can extend practically over the entire building height. The building 10 can comprise one or more such elevator shafts 2. In the present embodiment, the elevator shaft 2 is designed for an elevator with an elevator car and counterweight. However, the elevator shaft 2 can also be designed for multiple elevators. The elevator shaft 2 could also be designed for a self-propelled construction-phase elevator car.

[0046] Elevator cabin 4 enables the transport of people and goods to and from the lower floors during the building's construction phase. In particular, the elevator cabin can be used to transport construction workers and building materials. However, it can also transport users of apartments or commercial premises occupied before the building's completion between at least the floors assigned to these rooms, in compliance with regulations.

[0047] The elevator shaft 2 is, in a sense, divided into several sections in the vertical direction. As a lower section of the elevator shaft 2, which is located below the machine platform 6 with a drive 8 for the elevator, the elevator shaft 2 is already installed with the necessary guide rails for the linear guidance of the elevator car and the counterweight of the elevator for the finished building. The elevator system 1 for the building 2 under construction has, in this section, a conventional elevator car 4 and a counter-movable counterweight (not shown). The elevator car 4 presented here could, however, also be replaced by a self-propelled construction-phase elevator car 4 for transporting people or goods for the duration of the construction phase of the building 10. In this case, the machine platform 6 could be replaced by a different platform, and in particular, a platform without a drive machine for the elevator.

[0048] From the assembly platform 6, at least one guide rail line 3 is extended upwards in a rail assembly phase. This rail assembly phase is shown in Fig. 1. In addition to the assembly of guide rails, further work for the assembly of the shaft equipment or other work steps can be performed from the assembly platform 5. In the phase, simply referred to as the rail assembly phase, the assembly platform 5 can be moved vertically up or down to the desired position via cables. The assembly platform 5 is suspended from the protection platform 7 via the cable-based lifting device 23.

[0049] The protective platform designated 7 is temporarily fixed in an upper area of ​​the existing elevator shaft 2. The protective platform 7 is designed as a supporting structure. The supporting structure serves, among other things, to support the lifting device 23, with which the assembly platform 6 can be moved up and down. The protective platform 7 further has means 24 for lifting the machine platform 6. However, the protective platform 7 also has the task of protecting people and equipment in the elevator shaft 2—in particular in the aforementioned assembly platform 5—from objects that may fall during construction work on the building 2.

[0050] The rail installation phase can be followed by a growth phase. After the rail installation phase has been completed and the elevator shaft 2 has become sufficiently higher as construction of the building 2 progresses, the protective platform 7 must be positioned at the next higher level. The protective platform 7 is raised to the next higher level, for example, using a construction crane, so that as the building height increases, it can grow with the increased height of the elevator shaft 2. 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. After reaching the next higher level, the protective platform 7 is temporarily fixed again in the elevator shaft 2. The machine platform 6 can then be raised to the next higher level. For this purpose, the protective platform 7 has lifting equipment 24, for example a chain hoist.The chain hoist is designed to allow the machine platform 7, preferably together with the attached elevator car 4, to be raised for a lifting operation. However, the machine platform 7 could also be moved to the upper operating position using other lifting means, such as a crane, winch, hydraulic jack, or.

[0051] Strand jacks are used. Other elevator systems for a building under construction with an elevator shaft that increases in height during the construction phase as the building's height increases, using additional or alternatively designed platforms, are also known. The special solution for sealing the shaft space, shown below using the example of platform 7 and described in detail, is generally applicable to all types of platforms used in such elevator systems.

[0052] Platform 7 of the elevator system according to Fig. 1 can also be assigned to a climbing formwork or even be part of a climbing formwork. The climbing formwork comprises formwork (not shown) for concreting. In this case, platform 7 can thus be designed as a climbing formwork platform for the floor-by-floor production of concrete sections of the building core comprising the elevator shaft 2. The climbing formwork platform can have integrated climbing drives and be designed as a self-climbing formwork platform. As shown in Fig. 1, in another variant, the climbing formwork platform can be suspended floor-by-floor from anchors in the shaft walls.

[0053] Platform 7 has a horizontal roof structure for covering elevator shaft 2, on which a sealing arrangement designated 11 is arranged. 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. Sealing arrangement 11, shown in Figures 2 to 4 and explained in detail below, reliably and simply prevents water, concrete, and objects from entering the shaft space below the platform.

[0054] Fig. 2 shows a corner area of ​​the elevator shaft 2, wherein the shaft walls 12, 13, which are perpendicular to one another, enclose a corner. The sealing arrangement 11 of the platform 7 comprises side elements 14, 15 for sealing with respect to the shaft walls designated 12 and 13. The sealing arrangement 11 further comprises a corner element 16 for sealing with respect to the corner areas between the shaft walls 12, 13. As a rule, the sealing arrangement 11 has four such side elements 12, 13, each side element being assigned to a respective shaft wall; and four such corner elements 16, each corner element being assigned to one of the four corner areas 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. In Fig. 2, the sealing arrangement 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 also referred to as the active position.

[0055] To create the active position, the sealing arrangement 11 has a horizontal clamping element in the form of a quick-action clamp 16. During the closing process, the quick-action clamp 16 initially 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.

[0056] The quick-action clamp 16 comprises a metallic base body 34 with two legs 35, 36 positioned at right angles to each other and an adjusting body 37 slidably mounted within the base body, which can be moved for clamping via a quick-action clamp 38 articulated within the base body. The clamping force can be adjusted using a threaded rod 39 and 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 toward the corner so that the side elements strike the shaft walls. For example, it would be conceivable to use a motor-driven adjustment device to move the corner element 16.

[0057] Fig. 3 shows a platform 7 for an elevator system for a building under construction, with an elevator shaft that becomes higher as the building's height increases during the construction phase, with a sealing arrangement 11 for sealing or closing the gap between the platform and the elevator shaft. For a better understanding of the construction, no means for moving the corner element 16 of the sealing arrangement 11 are shown in Fig. 3. 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 clamp of the exemplary embodiment shown in Fig. 2.

[0058] Each corner element 16 comprises an angle profile part 19 made of sheet metal. This angle profile part 19, which forms an L in plan view, has two vertical wall sections 29 connected at right angles to each other, to which downwardly inclined drainage sections 28 are connected. The drainage sections 28 serve to drain water inwards. The angle profile part 19 further has stop sections 31, which serve to stop the angle profile part 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. Instead of the rubber seal, other elastic polymer materials for forming a flexible sealing body are also conceivable. Other shapes for the sealing body are also conceivable.Instead of a sealing body designed as a flat sealing profile or a sealing strip, more complicated sealing bodies such as hollow profile seals would be conceivable.

[0059] The angle profile part 19 with stop sections 31, wall sections 29, and deflection sections 28 can be manufactured from two sheet metal blanks, which are welded together after bending. The wall sections 29 are then connected to each other via a diagonal reinforcement plate to stiffen the angle.

[0060] The side elements 14, 15 arranged further outward on the platform 7 compared to the corner element 16 are constructed similarly. The side elements 14, 15 also have sheet metal parts. In this case, each side element 14, 15 consists of a sheet metal side part 45 made of sheet metal 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 attached to the platform 7. The side element 14, 15 has an engagement 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 projects beyond the side elements 14, 15 in the vertical direction.

[0061] Furthermore, it can be seen from Fig. 3 that a drainage gap 21 is formed between the flat roof structure 33, which is simplified by a plate, and the sealing arrangement 11. This drainage gap, which is rectangular in plan view, serves to easily drain away water collected using 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 led away, for example, via a hose-like drainage line to the next floor and fed into the sewer system there. Instead of a plate, the flat roof structure could also be constructed in several parts, for example, from planks arranged side by side.

[0062] Figures 4 and 5 show 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 exemplary embodiment. The sealing arrangement 11 differs from this in particular in a different design of the side elements 14, 15 for sealing the shaft walls. The side elements 14, 15 here essentially consist of a flat rubber profile that extends vertically from the bottom of the platform 7 to the upper end. The respective side element 14, 15 thus has a rubber seal 43, wherein this rubber seal 43 not only contacts the shaft wall but also forms a flank wall 44, so that water can be captured on the shaft wall side by means of the sealing body and guided via the rubber seal 43 to a lower drip edge.

[0063] Fig. 4 shows a possible design of a protective platform 7 that can be used in elevator systems according to Fig. 1. The platform 7 has movable support elements that can be inserted into recesses in the shaft walls to secure the protective platform 7 or can be placed on the shaft floor near 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 deployment position to the next upper deployment position.

[0064] Structural details of the sealing arrangement 11 are particularly evident in Fig. 5. A box profile 27 is attached to the flat rubber seal 43 as an engagement piece for the corner element 16. The rubber seal 43 is sandwiched between the inner box profile 27 and an outer flat profile.

[0065] Fig. 5 also shows a drainage gap 21 between the flat roof structure 33 and the sealing arrangement 11. The water flows through the drainage gap 21 into a circumferential gutter (not shown here). The platform 7 has a substantially rectangular basic shape with respect to the plan view. Several floor drains 41 are provided in the horizontal flat roof structure 33 (Fig. 4). It can also be seen 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 channeled into the water container and from there, or possibly even directly, led away via the drainage hose. To form an advantageous plate-like horizontal flat roof structure 33, planks (not shown here), for example in the form of wooden boards, can be provided. Such planks ensure 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 on these partition walls if the partition walls are designed as load-bearing components of the flat roof structure.

[0066] 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, thereby ensuring the desired sealing effect.

[0067] The floor drains 41 shown in Fig. 4 can be arranged in rubber mats or other flexible, flat floor elements. Due to the weight of the comparatively heavy floor drains 41, formed by metal components, the floor elements can be curved downwards at certain points, so that water is not trapped and proper drainage via the floor drains can be ensured.

[0068] In a rest position, the sealing assembly 11 is spaced from the shaft wall, allowing trouble-free vertical movement of the platform. For example, during the rail assembly phase, the shaft space must be secured and water must be prevented from entering the area below the platform. For this purpose, the sealing assembly 11 is moved to the active position. In the active position, the sealing assembly 11 is moved outward relative to the rest position, so that it contacts the shaft wall via stops to close the gap between platform 7 and elevator shaft 2.

[0069] Fig. 6 shows another platform 7 for an elevator system for a building under construction with an elevator shaft 2 that becomes higher as the building's height increases during the construction phase. The 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 plurality of planks. The planks can be formed from wooden boards. The flat roof structure 33 can further have a floor arranged below the planks, with which water seeping between the planks can be collected. This floor (not shown here) can have floor drains (see Fig. 4). The flat roof structure 33 is surrounded by a gutter-like water collection container 20. A waterproof film can be arranged between the gutter and the flat roof structure 33 to prevent water from seeping under the platform.The respective side elements 14, 15 are designed to be pivotable, as the arrows indicate, and can be swiveled to engage the shaft walls. In this case, the respective side elements 14, 15 consist of a sheet metal part 45 defining a 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 equipped and retrofitted with corner elements, as previously described with reference to Figures 2 to 4, which could further significantly improve the sealing effect.

Claims

Platform for an elevator installation (1) for a building (10) under construction, having an elevator shaft (2) which becomes higher 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), wherein the side elements (14, 15) can be struck against the shaft walls (12, 13) by means of the corner elements (16).

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

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

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

5. Platform according to claim 3 or 4, characterized in that the angle profile part (19) has inclined discharge sections (28).

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

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

9. Platform according to claim 8, characterized in that the sheet metal side part is pivotally attached to the platform.

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

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

12. 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. 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 groove.

14. Elevator installation (1) for a building (10) under construction with an elevator shaft (2) which becomes higher 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. Method for erecting an elevator installation (1) for a building (10) under construction, having an elevator shaft (2) which becomes higher 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) is created into 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 designed for a Lifting process is brought into an initial position by moving the corner elements (16) back, in which the sealing arrangement (11) is spaced from the elevator shaft (2) and which sealing arrangement (11) is brought back into the active position after the lifting process.

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