Method for installing elevator hardware in a building and elevator hoisting arrangement

The method of using a temporary multipod and hoist to install elevator hardware in a building without an RCC shaft addresses the challenges of high construction costs and safety risks, achieving a simpler and safer installation process.

WO2025051621A1PCT designated stage expired Publication Date: 2025-03-13INVENTIO AG
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Patent Information

Application Number
PCT/EP2024/074150
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-09-08
Filing Date
2024-08-29
Publication Date
2025-03-13

AI Technical Summary

Technical Problem

The conventional method of installing elevator hardware in a building requires a reinforced concrete cement (RCC) shaft, which increases construction costs and complexity, and poses safety risks for assemblers.

Method used

A method involving the erection of a temporary multipod over an elevator opening and the use of a temporary hoist to position and fasten elevator hardware to floor slabs, eliminating the need for an RCC shaft.

Benefits of technology

This approach simplifies the installation process, reduces construction costs, and enhances safety by allowing elevator hardware to be installed without the need for RCC shafts, thereby reducing complexity and safety risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

A method for installing elevator hardware (108) in a building, in particular, in a building without a reinforced concrete cement (RCC) elevator shaft is disclosed, the method comprising: erecting a temporary multipod (100) over an elevator opening (102) in a floor slab (104) of an upper level of the building, the elevator opening (102) being vertically aligned to other elevator openings (102) in floor slabs (104) of lower levels of the building, defining a hoistway (106) for the elevator; connecting a temporary hoist (110) to the multipod (100); hoisting and positioning the hardware (108) in the hoistway (106) using the temporary hoist (110); fastening the hardware (108) to the floor slabs (104) of the different levels; and dismounting the temporary hoist (110) and multipod (100).
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Description

[0001] METHOD FOR INSTALLING ELEVATOR HARDWARE IN A BUILDING AND ELEVATOR HOISTING ARRANGEMENT

[0002] The present disclosure relates to elevators and more particularly, to a method for installing elevator hardware in a building without the need of an integrated hoisting point and an elevator hoisting arrangement.

[0003] Conventionally, a building has a reinforced concrete cement (RCC) shaft for the installation of an elevator system. An elevator system may be mounted from an elevator pit at a lower end of the elevator shaft to a head room at an upper end of the elevator shaft. During the mounting of the elevator, a mounting platform may be moved incrementally upward along the elevator shaft.

[0004] WO 2013 / 186096 Al describes a method and a mounting system for mounting lift components of a lift system in a vertical shaft of a building with a mounting system which can be moved in the shaft. The lift system has at least one cage which can travel along guide rails in the shaft. The mounting system positioned in the shaft includes a support platform and a mounting platform disposed one above the other and a lifting and pulling device. The support platform and the mounting platform are alternately fixed in position in the shaft and the platform which is not fixed in position at any one time is displaced in the vertical direction by means of the lifting and pulling device relative to the platform fixed in position. The lift components are needed to be mounted in the vertical shaft, such as the RCC shaft, of the building. This substantially increases the overall construction cost of the building and leads to various disadvantages associated with implementation of the RCC shaft for installing the elevators. Further, in order to mount the lift components in the vertical shaft, the support platform and the mounting platform are required for assisting an assembler to mount the lift components at different locations within the shaft. This substantially increases the overall complexity of the installation process. In fact, the time needed for installation is also significant. Also, owing to the presence of the assembler within the RCC shaft, additional measures are required to ensure the safety of the assembler while installing the elevator and associated sub-components.

[0005] Novel elevator systems are developed which do not require an RCC shaft for being installed therein. However, in a building without an RCC shaft, it may be impossible to incrementally move a mounting platform upward since there are no walls to secure the platform to.

[0006] Therefore, there is a need to simplify an installation of hardware for an elevator, particularly in a building without the requirement of a reinforced concrete cement (RCC) elevator shaft, reducing or eliminating the abovementioned associated shortcomings.

[0007] Such need may be met by a method having the features of claim 1 and an arrangement having the features of claim 14. Advantageous embodiments are defined in the dependent claims as well as in the present specification.

[0008] According to a first aspect, a method for installing elevator hardware in a building, in particular, in a building without a reinforced concrete cement (RCC) elevator shaft is disclosed, the method comprising: erecting a temporary multipod over an elevator opening in a floor slab of an upper floor of the building, the elevator opening being vertically aligned to other elevator openings in floor slabs of other floors of the building, defining a hoistway for the elevator, connecting a temporary hoist to the multipod, hoisting and positioning the hardware in the hoistway using the temporary hoist, fastening the hardware to the floor slabs of the different floors, and dismounting the temporary hoist and multipod. Said temporary hoist may comprise a drive for hoisting the hardware. For a cable-based hoisting the drive exemplarily be designed as a winch or a cable pull device which in particular can be an endless winch.

[0009] According to a second aspect, an elevator hoisting arrangement for a building, in particular, for a building without a reinforced concrete cement (RCC) elevator shaft is disclosed, the arrangement including a support structure and a hoist, wherein the support structure comprises one of

[0010] (i) a multipod being temporarily erected over an elevator opening in a floor slab of an upper level of the building, the elevator opening being vertically aligned to other elevator openings in floor slabs of lower levels of the building, defining a hoistway for the elevator;

[0011] (ii) at least two elevator rails being permanently fastened to brackets mounted to the floor slabs, the rails bridging a floor height of the levels unsupported, and at least one crossmember being positioned between upper ends of the rails and being fastened to the upper ends, wherein the support structure extends vertically beyond the floor slab of the upper level of the building and wherein the hoist is fixed to the support structure at a location above a height level of the floor slab of the upper level of the building.

[0012] Elevator hardware may in particular be immobile and be permanently attached to a building. The hardware may for example comprise brackets and rails of the elevator.

[0013] Conventionally, a reinforced concrete cement (RCC) elevator shaft is formed by RCC walls and encloses an elevator hoistway. Landing doors of the elevator are arranged in door openings in the walls.

[0014] In the presented approach the hoistway is not enclosed by an elevator shaft. The hoistway is formed by vertically aligned, essentially similar elevator openings in floor slabs of the connected floors. The elevator openings may be enclosed by the floor slab on all sides. Alternatively, the elevator openings may be open to at least one side. The elevator openings may have a bigger clearance than the hoistway. The hoistway may end in an elevator pit at a lower end and a headroom at an upper end. The hoistway may be a clear space including a travel path for moving parts of the elevator. The moving parts may be at least one car, at least one counterweight and traction members connecting car and counterweight. The hoistway may intersect all levels connected by the elevator.

[0015] A floor slab may be a body of RCC with an upper surface creating a floor of a level of a building and a lower surface creating a ceiling of a lower level.

[0016] A hoisting arrangement may be a multipod, for example. The multipod may have multiple legs. A head end of all legs may be connected at a peak of the multipod. In an erected state, foot ends of the legs may be spread apart. An angle between the legs may be fixed or variable. For example, at least one movable joint may be arranged at the peak. To erect the multipod, the legs may be spread apart, and the foot ends may be placed around the elevator opening, placing the peak more or less centrally over the elevator opening. The multipod may be referred to as sheerlegs. The multipod may be a tripod with three legs or a tetrapod with four legs, for example. The multipod may have an interface to a hoist. The hoist may be arranged at the peak, at a leg of the multipod or between two legs. The hoist may also be arranged next to the elevator opening. If the hoist is arranged aside from the peak, a pulley may be arranged at the peak.

[0017] The hoisting arrangement may alternatively be constructed from rails of the elevator and at least one crossmember traversing the elevator opening between them. The interface to the hoist may also be arranged on the crossmember.

[0018] The hoist may be referred to as winch. The hoist may have a rotating drum to move a suspension and traction means such as a rope, belt, or cable. The drum may be a reservoir for winding up the rope, belt, or cable. The drum may also be a capstan or windlass.

[0019] The rails of the elevator may be hoisted up the hoistway and positioned relative to the brackets. The brackets may be mounted to the floor slabs. The brackets may be hoisted before the rails. The rails may be fastened to the brackets. The rails may bridge a floor height of the floors unsupported. During the hoisting, the rails may be pulled near one end. The rails may be moved from a horizontal orientation outside the hoistway to a vertical orientation inside the hoistway. The rails may be fastened without entering the hoistway, since the building has no RCC walls blocking access to the hoistway.

[0020] At least two rails may be hoisted up the hoistway until upper ends of the rails are positioned extending vertically over the level where the multipod is arranged on. The rails may be fastened in that position. At least one crossmember may be positioned between the upper ends and may be fastened to the upper ends. The crossmember may provide a permanent service hoisting point for elevator service. A permanent service hoisting point may enable easy service on the elevator during operation of the elevator. The permanent service hoisting point may have a higher load capacity than the multipod. In particular, the permanent service hoisting point may have around double the load capacity than the multipod. A crossmember may be a beam. The crossmember may be made of metal. In particular, the crossmember may be made of steel. The crossmember may have an I-shape or a T-shape. The crossmember may have a hole, hook, or eye to hang a pulley. The crossmember may also have a sheave and / or an interface for a hoist. The interface preferably can be a fixed point which can comprise, for example, an eyelet into which a hook can be received. The crossmember may be positioned across the elevator opening. The crossmember may span the elevator opening. The crossmember may be arranged between the rails after the rails are fastened to the brackets and a foundation for the elevator. The rails may support the crossmember and a load transferred from the crossmember to the rails into the foundation. The permanent service hoisting point may be arranged approximately central over the hoistway.

[0021] Said permanent service hoisting point for elevator service may also be used in a method of modernising an elevator installation. Since elevator installations are relatively long-term capital -cost items with service lives of 20 years and more it can happen that with time these no longer satisfy changing demands or need to be upgraded for other reasons. In certain circumstances modernisation of the installation is then required. By the term "modernisation” there is to be understood in the following not just exchange of technologically aged components. Modernisation particularly also means rebuilding or redesigning existing installations and thus adapting these to new needs. Through modernisation, lift installations can, for example, be operated more safely, more efficiently, more comfortably for users and / or more favourably for operators. For example, an old elevator car be exchanged by a new car. Thus, the permanent service hoisting point for elevator service may be favourably used in such a method of modernising an elevator installation. In such a method the aforementioned temporary multipod and the temporary hoist need not necessarily be used.

[0022] The upper ends may be positioned higher than a top of the multipod. The rails may extend approximately to a ceiling of the head room of the elevator. This way, there may be ample space for doing maintenance on the elevator.

[0023] At least three rails may be hoisted up the hoistway until their upper ends extend over the floor with the multipod. Two crossmembers may be positioned in a T-shape. Ends of the T-shape may be fastened to the upper ends of the three rails. The service hoisting point may be arranged on a stem of the T-shape. The stem may be attached to a center of the other crossmember. This way, the stem intersects a center of the hoistway. The permanent service hoisting point may be arranged in the center of the hoistway. On the stem a fixed point comprising, for example, an eyelet for the permanent service hoisting point for elevator service can be attached.

[0024] At least three rails may be hoisted up the hoistway until their upper ends extend over the floor with the multipod. Three crossmembers may be arranged as sides of a triangle. Comers of the triangle may be fastened to the upper ends of the three rails. The triangle may stabilize the rails laterally. The triangle may provide a high structural integrity. The triangle may be immune to warping.

[0025] The T-shape may be arranged within the triangle. One of the crossmembers of the T-shape may be a side of the triangle. Three crossmembers may converge at one rail. The triangle may provide lateral stability. The T-shape may provide vertical load transfer. By combining the triangle and T-shape, the permanent service hoisting point is very sturdy.

[0026] A meeting point of the two crossmembers of the T-shape may be fastened to an upper end of a fourth rail. The fourth rail may support a part of the vertical load and may be stabilized laterally by being connected to the crossmembers.

[0027] An elevator drive may be fastened to an upper end of one of the rails. The rail may in particular be a fourth rail. The rail supports vertical loads of the drive. In order to move an elevator car said drive preferably in the form of a driving pulley drive or a drum drive is provided which comprises, in particular, a traction sheave which is connected to a drive motor, or a drum driven by a motor , wherein motor and sheave / drum are preferably constructed as an integral unit.

[0028] The dismounted hoist and multipod may be lowered down the hoistway using the permanent service hoisting point. After erecting the permanent service hoisting point, the temporary multipod and temporary hoist may be no longer needed and may be easily lowered down the hoistway from the permanent service hoisting point.

[0029] The multipod may be erected on a reinforced lintel arranged around the elevator opening, a lintel may be an especially reinforced frame around the elevator opening. The lintel is configured to support high loads. Placing the multipod on the lintel ensures a secure transfer of the hoisted loads into the building. The multipod may be erected on a horizontal surface of the floor slab surrounding the elevator opening. There may be no walls around the elevator opening. The horizontal surface of the floor slab may be oriented transverse to a load direction. The multipod may have a high stability on the horizontal surface.

[0030] The multipod may be erected over a topmost elevator opening of the building. The multipod may be erected near a top of a multi-story-building. By erecting the multipod on the uppermost floor slab, the whole hoistway is accessible from the multipod.

[0031] The term 'floor slab' refers to a structural feature, usually of constant thickness, that may be formed using concrete (and generally steel reinforcement) and may form part of the structure of the building. The floor slab refers to the structural feature defining each floor / level of the building except the lowest floor, i.e., a floor at the lowest level of the building. A top surface of the floor slab may be referred to as a floor and a bottom surface of the floor slab may be referred to as a roof or ceiling.

[0032] The term ‘elevator pit’ refers to an enclosed space formed below the lowest floor, i.e., the floor at the lowest level of the building.

[0033] The term ‘elevator opening’ refers to a through-hole formed between the top surface of the floor slab and the bottom surface of the floor slab.

[0034] The term ‘horizontal surface’ of the floor slab refers to either the top surface or the bottom surface of the floor slab.

[0035] The term ‘hoistway’ refers to a passage, through the elevator opening of each floor slab, extending from a top floor slab of the building to the lowest floor slab of the building.

[0036] Additional advantages, features, and details of the invention result using the following description of exemplary embodiments and using drawings in which the same or functionally identical elements are provided having identical reference signs. To further clarify advantages and features of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof, which is illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. The invention will be described and explained with additional specificity and detail with the accompanying drawings.

[0037] These and other features, aspects, and advantages of the present invention will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:

[0038] Figure 1 illustrates a partial perspective view of a multipod used in an installing method according to an embodiment of the present disclosure;

[0039] Figure 2 illustrates a perspective view of a permanent service hoisting point used in an installing method according to an embodiment of the present disclosure; and

[0040] Figure 3 illustrates a perspective view of a permanent service hoisting point used in an installing method according to another embodiment of the present disclosure.

[0041] Further, skilled artisans will appreciate that elements in the drawings are illustrated for simplicity and may not have necessarily been drawn to scale. For example, in terms of the construction of the device, one or more components of the device may have been represented in the drawings by conventional symbols, and the drawings may show only those specific details that are pertinent to understanding the embodiments of the present invention so as not to obscure the drawings with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.

[0042] For the purpose of promoting an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended, such alterations and further modifications in the illustrated system, and such further applications of the principles of the invention as illustrated therein being contemplated as would normally occur to one skilled in the art to which the invention relates. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The system, methods, and examples provided herein are illustrative only and not intended to be limiting.

[0043] The term “some” as used herein is defined as “none, or one, or more than one, or all.” Accordingly, the terms “none,” “one,” “more than one,” “more than one, but not all” or “all” would all fall under the definition of “some.” The term “some embodiments” may refer to no embodiments or to one embodiment or to several embodiments or to all embodiments. Accordingly, the term “some embodiments” is defined as meaning “no embodiment, or one embodiment, or more than one embodiment, or all embodiments.”

[0044] The terminology and structure employed herein is for describing, teaching and illuminating some embodiments and their specific features and elements and does not limit, restrict or reduce the spirit and scope of the claims or their equivalents.

[0045] More specifically, any terms used herein such as but not limited to “includes,” “comprises,” “has,” “consists,” and grammatical variants thereof do NOT specify an exact limitation or restriction and certainly do NOT exclude the possible addition of one or more features or elements, unless otherwise stated, and furthermore must NOT be taken to exclude the possible removal of one or more of the listed features and elements, unless otherwise stated with the limiting language “MUST comprise” or “NEEDS TO include.”

[0046] Whether or not a certain feature or element was limited to being used only once, either way it may still be referred to as “one or more features” or “one or more elements” or “at least one feature” or “at least one element.” Furthermore, the use of the terms “one or more” or “at least one” feature or element do NOT preclude there being none of that feature or element, unless otherwise specified by limiting language such as “there NEEDS to be one or more . . . ” or “one or more element is REQUIRED.”

[0047] Unless otherwise defined, all terms, and especially any technical and / or scientific terms, used herein may be taken to have the same meaning as commonly understood by one having an ordinary skill in the art. Reference is made herein to some “embodiments.” It should be understood that an embodiment is an example of a possible implementation of any features and / or elements presented in the attached claims. Some embodiments have been described for the purpose of illuminating one or more of the potential ways in which the specific features and / or elements of the attached claims fulfil the requirements of uniqueness, utility and nonobviousness.

[0048] Use of the phrases and / or terms such as but not limited to “a first embodiment,” “a further embodiment,” “an alternate embodiment,” “one embodiment,” “an embodiment,” “multiple embodiments,” “some embodiments,” “other embodiments,” “further embodiment”, “furthermore embodiment”, “additional embodiment” or variants thereof do NOT necessarily refer to the same embodiments. Unless otherwise specified, one or more particular features and / or elements described in connection with one or more embodiments may be found in one embodiment, or may be found in more than one embodiment, or may be found in all embodiments, or may be found in no embodiments. Although one or more features and / or elements may be described herein in the context of only a single embodiment, or alternatively in the context of more than one embodiment, or further alternatively in the context of all embodiments, the features and / or elements may instead be provided separately or in any appropriate combination or not at all. Conversely, any features and / or elements described in the context of separate embodiments may alternatively be realized as existing together in the context of a single embodiment.

[0049] Any particular and all details set forth herein are used in the context of some embodiments and therefore should NOT be necessarily taken as limiting factors to the attached claims. The attached claims and their legal equivalents can be realized in the context of embodiments other than the ones used as illustrative examples in the description below.

[0050] Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

[0051] Figure 1 illustrates a perspective view of a multipod 100 used in an installing method according to an embodiment of the present disclosure. The multipod 100 may be referred to as hoisting arrangement. The multipod 100 is temporarily erected over an elevator opening 102 in a floor slab 104 of a multi-story building. In particular, the elevator opening 102 is the topmost elevator opening 102 of the building. The elevator opening 102 is vertically aligned to lower elevator openings 102 on other levels of the building. The elevator openings define a hoistway 106 for an elevator. The hoistway 106 is not enclosed by reinforced cement concrete (RCC) walls of an elevator shaft. Hardware 108 of the elevator is exclusively mounted to the floor slabs 104 around the elevator openings 102. The floor slabs 104 are reinforced around the elevator openings 102 to bear the extra loads transferred to them by the hardware 108.

[0052] The multipod 100 is used to hoist the hardware 108 up the hoistway 106 with a temporary hoist 110. The hoist 110 may be arranged on the multipod 100 or may be fastened on the floor slab 104. Here, the hoist 110 is on the floor and a pulley 112 is connected to a peak 114 of the multipod 100. Rails and brackets are hoisted up the hoistway by a rope running over the pulley 112 to the hoist 110. The multipod 100 is dismounted after the hardware 108 is mounted in the hoistway 106.

[0053] The multipod 100 may have three or more legs 116. The legs 116 are connected at the peak 114 of the multipod 100. The peak 114 is arranged approximately over a centre of the elevator opening 102. The legs 116 angle downward from the peak and rest on an upper surface of the floor slab 104 outside the elevator opening 102. The legs 116 are bent where they reach the surface. The bend creates a foot 118 for each leg 116. The feet 118 are oriented away from the elevator opening 102 and are aligned approximately parallel to the surface.

[0054] Here, the multipod 100 has four legs 116. The legs 116 are arranged cruciform. Each foot 118 rests on the floor slab 104 behind one of the four comers of the elevator opening 102. The multipod 100 is made from metal profiles. The profiles have different crosssections. Two legs 116 are made of a U-shaped profile and two legs 116 are made from rectangular piping.

[0055] After the hardware 108 is fastened to the building, the hoist 110 and multipod are dismounted and sent down the hoistway 106. Figure 2 illustrates a perspective view of a permanent service hoisting point 200, according to an embodiment of the present disclosure. The permanent service hoisting point 200 may also be referred to as hoisting arrangement. The permanent service hoisting point 200 is built using the multipod in fig. 1. For the construction of the permanent service hoisting point 200, rails 202 of the elevator are raised higher than the surface of the floor slab 104 so that they protrude over the surface. Crossmembers 204 are arranged between the protruding rails 202. The permanent service hoisting point 200 is arranged on one of the crossmembers 204 near the centre of the hoistway 106. The permanent service hoisting point 200 permanently stays in the building.

[0056] The multipod and hoist of fig. 1 were disassembled and lowered through the hoistway 106 from the permanent service hoisting point 200. The multipod and hoist may be reused for the construction of another elevator.

[0057] In an embodiment, the crossmembers 204 are arranged in a T-shape. Each of the three ends 206 of the T-shape is connected to one rail 202. Two of the rails 202 are on one side of the hoistway 106 and the third rail 202 is arranged on the opposite side of the hoistway 106. The two rails 202 on the one side are rails 202 for a counterweight of the elevator, the one rail 202 on the other side is one of the rails 202 for a car (not shown) of the elevator. The permanent service hoisting point 200 is arranged on a stem 208 of the T- shape running across the hoistway 106

[0058] A hitch point can be created on the top of guide rails and being supported by guide rails. The approach can be used in places where hitch point is not properly installed or available.

[0059] In an embodiment, two additional crossmembers 204 are arranged between the rails 202. The additional crossmembers 204 directly connect one of the counterweight rails 202 to the car rail 202. The additional rails 202 and the stem 208 converge at the car rail 202. The crossmembers 204 form a triangle with the stem 208 running down a centreline of the triangle. The triangle stabilizes the extended ends 206 of the rails 202 in a horizontal direction. The T-shape spreads a load on the permanent service hoisting point 200 onto all three rails 202. Fig. 2 further shows an elevator drive 210 in the form of a driving pulley drive or a drum drive. The elevator drive 210 for the final elevator can move the car and usually the car and a counterweight upwards and downwards along vertical tracks. Thus, the elevator may comprise two loads transportable by a traction means: said car and the possible counterweight . Cable-like traction means (wire cables), chain-like traction means and, increasingly in recent times, also belt-like traction means (traction belts) currently come into question as traction means for mechanical drives. The elevator drive 210 is fastened to an end 206 of one of the rails 202 of the elevator.

[0060] In an alternative embodiment, a winch (not shown) for the permanent service hoisting point 200 may be fastened to an end 206 of one of the rails 202 of the elevator. The winch has a motor and a drum for winding up a cable or rope. The cable or rope for service purposes can be led over a pulley at the permanent service hoisting point 200.

[0061] Figure 3 illustrates a perspective view of a permanent service hoisting point 200, according to another embodiment of the present disclosure. The permanent service hoisting point 200 essentially corresponds to the permanent service hoisting point in fig. 2.

[0062] Here, a fourth rail 202 of the elevator also extends over the floor slab 104 and is connected to the crossmembers 204 where the stem 208 meets the crossmember 204 for the T-shape. The fourth rail bears a partition of the load distributed by the crossmembers 204 and is laterally stabilized by the crossmembers 204. The fourth rail 202 is the opposite rail 202 for the car of the elevator. The fourth rail 202 is arranged centrally between the two rails 202 for the counterweight.

[0063] As can be seen from fig. 3, a fixed point formed by an eyelet is arranged on the stem 208 of the T-shape. Into this eyelet a hook (not shown) can be received which hook is attributed to a cable or rope suspending, for example, the car from the permanent service hoisting point 200. For elevator service the cable or rope can be driven by an endless winch. A so-called “Tirak” can be used as an endless winch, for example.

[0064] In an another embodiment, a sheave (not shown) may be arranged on the stem 208 of the T-shape. The sheave is a fixed pulley for the cable or rope suspended from the permanent service hoisting point 200. The sheave may, for example, be arranged in a slit (not shown) of the crossmember 204.

[0065] While specific language has been used to describe the present subject matter, any limitations arising on account thereto, are not intended. As would be apparent to a person in the art, various working modifications may be made to the method in order to implement the inventive concept as taught herein. The drawings and the foregoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment.

Claims

Claims1. A method for installing elevator hardware (108) in a building, in particular, in a building without a reinforced concrete cement (RCC) elevator shaft, the method comprising: erecting a temporary multipod (100) over an elevator opening (102) in a floor slab (104) of an upper level of the building, the elevator opening (102) being vertically aligned to other elevator openings (102) in floor slabs (104) of lower levels of the building, defining a hoistway (106) for the elevator; connecting a temporary hoist (110) to the multipod (100); hoisting and positioning the hardware (108) in the hoistway (106) using the temporary hoist (110) ; fastening the hardware (108) to the floor slabs (104) of the different levels; and dismounting the temporary hoist (110) and multipod (100).

2. The method according to claim 1, wherein rails (202) of the elevator are hoisted up the hoistway (106) and positioned relative to brackets mounted to the floor slabs (104), wherein the rails (202) are fastened to the brackets, bridging a floor height of the levels unsupported.

3. The method according to any one of claims 1 to 2, wherein at least two rails (202) of the elevator are hoisted up the hoistway (106) until upper ends (206) of the rails (202) are positioned extending vertically beyond the floor slab (104) of the upper level and are fastened in that position, wherein at least one crossmember (204) is positioned between the upper ends (206) and fastened to the upper ends (206), providing a permanent service hoisting point (200) for elevator service.

4. The method according to claim 3, wherein the upper ends (206) are positioned higher than atop of the multipod (100).

5. The method according to any one of claims 3 to 4, wherein two crossmembers (204) are positioned in a T-shape and ends of the T-shape are fastened to the upper ends (206) of the rails (202), wherein the service hoisting point (200) is arranged on a stem (208) of the T-shape.

6. The method according to any one of claims 3 to 5, wherein three crossmembers (204) are arranged as sides of a triangle and comers of the triangle are fastened to the upper ends (206) of the rails (202).

7. The method according to claims 5 and 6, wherein the T-shape is arranged within the triangle, wherein one of the crossmembers (204) of the T-shape is a side of the triangle.

8. The method according to any one of claims 5 or 7, wherein a meeting point of the two crossmembers (204) of the T-shape is fastened to an upper end (206) of a fourth rail (202).

9. The method according to any one of claims 1 to 8, wherein an elevator drive (210) is fastened to an upper end (206) of a rail (202).

10. The method according to any one of claims 3 to 9, wherein the dismounted hoist (110) and multipod (100) are lowered down the hoistway (106) using the permanent service hoisting point (200).

11. The method according to any one of claims 1 to 10, wherein the multipod (100) is erected on a reinforced lintel arranged around the elevator opening (102).

12. The method according to any one of claims 1 to 11, wherein the multipod (100) is erected on a horizontal surface of the floor slab (104) surrounding the elevator opening (102).

13. The method according to any one of claims 1 to 12, wherein the multipod (100) is erected over a topmost elevator opening (102) of the building.

14. An elevator hoisting arrangement for a building, in particular, for a building without a reinforced concrete cement (RCC) elevator shaft, the arrangement including: a support structure; and a hoist, wherein the support structure comprises one of(i) a multipod (100) being temporarily erected over an elevator opening (102) in a floor slab (104) of an upper level of the building, the elevator opening (102) being vertically aligned to other elevator openings (102) in floor slabs (104) of lower levels of the building, defining a hoistway (106) for the elevator; (ii) at least two elevator rails (202) being permanently fastened to brackets mounted to the floor slabs (104), the rails (202) bridging a floor height of the levels unsupported, and at least one crossmember (204) being positioned between upper ends (206) of the rails (202) and being fastened to the upper ends (206), wherein the support structure extends vertically beyond the floor slab (104) of the upper level of the building and wherein the hoist (110) is fixed to the support structure at a location above a height level of the floor slab (104) of the upper level of the building.

Citation Information

Patent Citations

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