Method for building an elevator

Abstract

The invention relates to a method for constructing an elevator, comprising constructing a movable machine room at the bottom end of a hoistway; thereafter, lifting the movable machine room; and constructing an elevator car below the movable machine room; and arranging a counterweight below the movable machine room; connecting the elevator car and the counterweight with a hoisting rope; thereafter, lifting the movable machine room to a first transport position; thereafter, mounting the movable machine room to the first transport position; thereafter, using the elevator car for transporting passengers and / or goods below the machine room, while the movable machine room is mounted in the first transport position and the elevator car and the counterweight are suspended from the machine room by the hoisting rope; thereafter, lifting the movable machine room upwards to a second transport position; wherein the second transport position is higher than the first transport position; thereafter, mounting the movable machine room to the second transport position; and thereafter, using the elevator car for transporting passengers and / or goods below the movable machine room, while the movable machine room is mounted in the second position.

Description

Technical Field

[0001] This invention relates to a method for constructing an elevator, and more particularly to a method that allows the elevator to be used for transportation during the construction phase. The elevator is preferably an elevator for transporting passengers and / or goods. Background Technology

[0002] In a so-called duplex elevator, the bottom of the elevator shaft is already in use before the building is completed. In this case, the upper part of the building and the area above the elevator shaft can be constructed simultaneously as the elevator moves at the bottom of the shaft, which already serves the lower floors of the building under construction. In duplex elevators, the elevator car, moving at the bottom of the shaft, is typically supported and moved during construction using a hoist supported by a vertically movable machine room within the elevator shaft.

[0003] When used for transporting passengers and / or goods, the car can be suspended from the mobile machine room below the mobile machine room via lifting ropes.

[0004] Typically, the mobile equipment room is lifted into the shaft as a complete unit and installed at a specific height within the shaft. Construction work within the shaft above the vertical mobile equipment room is carried out via an installation platform suspended above the mobile equipment room, or alternatively, via scaffolding installed within the shaft.

[0005] Once the elevator shaft above the vertically movable machine room is sufficiently completed, the finished section of the elevator shaft can be put into use. At this stage, a "floor jump" is performed, in which the vertically movable machine room is raised higher within the elevator shaft. Afterward, the elevator car can reach a higher position than before the floor jump and begin serving other floors.

[0006] One drawback of existing technology is that the installation of components for duplex elevators located at height above the car is very slow and complex. It typically requires the use of on-site cranes to lift large components, such as movable machine rooms and / or installation platforms, into the shaft, which is often necessary for other tasks but may not be feasible quickly. Summary of the Invention

[0007] The object of this invention is to introduce an improved method for constructing elevators. In particular, it is to introduce a solution that addresses one or more of the aforementioned problems of the prior art and / or the disadvantages discussed or implied elsewhere in the specification. A particular object is to make the installation of components for duplex elevators quick and simple.

[0008] In particular, embodiments that can reduce reliance on construction site cranes are proposed.

[0009] In particular, embodiments are presented that enable a rapid and efficient installation of a machine room to a transport position of a leap-in elevator.

[0010] In particular, embodiments are presented that enable a rapid and efficient installation of a leap-in elevator component located above the machine room.

[0011] A new method for constructing an elevator is presented, comprising constructing a movable machine room in a bottom end of a shaft formed in a building under construction; and thereafter, hoisting the movable machine room; preferably installing the movable machine room to a hoisting position in the shaft vertically supported on a fixed structure; and constructing an elevator car in the bottom end of the shaft below the movable machine room; and arranging a counterweight in the bottom end of the shaft below the movable machine room; and connecting the elevator car and the counterweight with a hoisting rope, which is preferably suspended from the movable machine room and passes over at least one rope wheel of the movable machine room; and thereafter, hoisting the movable machine room to a first transport position I; and thereafter, installing the movable machine room to the first transport position in the shaft vertically supported on a fixed structure; and thereafter, using the elevator car for transporting passengers and / or cargo below the machine room when the movable machine room is installed in the first transport position I, in particular when the elevator car and the counterweight are suspended from the machine room by the hoisting rope; and thereafter, hoisting the movable machine room upwards to a second transport position II; wherein the second transport position II is higher than the first transport position I; thereafter, installing the movable machine room to the second transport position II in the shaft vertically supported on a fixed structure; and thereafter, using the elevator car for transporting passengers and / or cargo below the machine room when the movable machine room is installed in the second position II, in particular when the elevator car counterweight is suspended from the movable machine room by the hoisting rope.

[0012] With this solution, one or more of the above-mentioned objects can be achieved. The solution especially reduces the dependency on construction site cranes and makes the initial steps of the method for constructing an elevator swift and efficient.

[0013] Preferred further details of the method will be presented below, which can be combined with the method alone or in any combination.

[0014] In one preferred embodiment, during said construction of the movable machine room, the movable machine room is constructed to rest supported by the floor of the shaft in the bottom end of the shaft. Thus, the movable machine room can be constructed in a place where the installation work can be safely performed and the need for construction site cranes is minimized.

[0015] In a preferred embodiment, in said construction of the elevator car, the elevator car is constructed above the buffer; and / or the elevator car is constructed to lean laterally against one or more guide rail lines; and / or the structural components of the elevator car are mounted on the car frame when the car frame is suspended from the machine room, in particular by means of an auxiliary hoist.

[0016] In a preferred embodiment, constructing the movable machine room comprises transporting a plurality of prefabricated sub-modules into the bottom end of the shaft, and connecting the plurality of prefabricated sub-modules to each other in the bottom end of the shaft. This enables the construction work of the movable machine room to be carried out quickly, accurately and simply inside the shaft (e.g. instead of in a factory). This also enables the movable machine room to be subsequently disassembled simply, to construct a movable machine room at the bottom end of another shaft using the components of the movable machine room.

[0017] In a preferred embodiment, the method comprises disassembling the movable machine room after at least one step in which the elevator car is used for transporting passengers and / or cargo, the disassembling preferably comprising disconnecting one or more of the sub-modules of the machine room, and using the components from the disassembled machine room, preferably one or more sub-modules of the disassembled machine room, to construct a movable machine room in the bottom end of another shaft, such as a shaft formed in another different building under construction.

[0018] In a preferred embodiment, constructing the movable machine room in the bottom end of another shaft comprises transporting a plurality of prefabricated sub-modules from the disassembled machine room into the bottom end.

[0019] In a preferred embodiment, the movable machine room comprises:

[0020] a hoist support platform, the support platform comprising one or more releasable mounting mechanisms for releasably mounting the movable machine room in the shaft; and

[0021] a hoist mounted on the support platform;

[0022] a work platform above the support platform, the work platform preferably also forming a roof of the movable machine room and / or comprising a handrail; and

[0023] at least one support structure by which the work platform is supported to rest on the support platform, or at least can be supported to rest on the support platform.

[0024] In a preferred embodiment, the support structure is selectively actuatable, in particular to obtain a counter force from the support platform to extend in the vertical direction for lifting the work platform to a higher position above the support platform, or to retract in the vertical direction for lowering the work platform towards the support platform. Thereby, a back and forth movement is achieved, and work can be performed at different heights above the support platform. It also enables work to be performed at a relatively high position above the support platform, and subsequently lowering the work platform towards the support platform, thereby making the mobile machine room compact again, and relatively easy and rigid to vertically lift to a higher position in the shaft. This makes the method simple, fast, and reduces the dependency on the availability of a construction site crane or other lifting device.

[0025] In a preferred embodiment, the method comprises using the work platform for installing elevator components from the work platform in the shaft section above the support platform, when the mobile machine room, in particular in the installed state, is in the transport position (I or II) in the shaft. The use preferably comprises moving the work platform up and down using the aforementioned selectively actuatable support structure.

[0026] In a preferred embodiment, the aforementioned use of the work platform comprises one or more times actuating the aforementioned selectively actuatable at least one support structure to extend in the vertical direction for lifting the work platform to a higher position above the support platform, and one or more times actuating the at least support structure to retract in the vertical direction for lowering the work platform towards the support platform. The use preferably comprises operating an operating interface, which is preferably connected to each selectively actuatable support structure of the mobile machine room, in particular to the actuating device of each selectively actuatable support structure of the mobile machine room. Thereby, actuation is facilitated. Furthermore, simultaneous actuation is possible when there are multiple actuating devices.

[0027] In a preferred embodiment, the operating interface is connected to each selectively actuatable support structure of the mobile machine room, in particular to the actuating device of each selectively actuatable support structure of the mobile machine room. The interface can be in the form of an operating panel, such as a button panel or a touch screen.

[0028] In a preferred embodiment, the aforementioned selectively actuatable support structure comprises a vertical tower that is selectively actuatable to extend or retract in the vertical direction.

[0029] In a preferred embodiment, the vertical tower comprises a plurality of parallel elongated tower members that are movable relative to each other.

[0030] In a preferred embodiment, the elongated tower members are vertically oriented beams, and the support structure comprises an actuating device for moving the tower members relative to each other to extend or retract the tower.

[0031] In a preferred embodiment, the elongated tower member comprises a hydraulic piston and cylinder, the cylinder being selectively actuatable by the hydraulic fluid to extend or retract.

[0032] In a preferred embodiment, the aforementioned selectively actuatable support structure comprises a scissors jack mechanism, the mechanism being selectively actuatable to extend or retract in a vertical direction.

[0033] In a preferred embodiment, the plurality of prefabricated sub-modules comprises:

[0034] a first prefabricated sub-module comprising a hoisting machine support platform, the support platform comprising one or more releasable mounting mechanisms for releasably mounting the movable machine room in the hoistway, possibly also comprising a pre-installed hoisting machine; and / or

[0035] a second prefabricated sub-module comprising a work platform, the work platform forming a top portion of the movable machine room and comprising a handrail; and / or

[0036] at least one third prefabricated sub-module adapted for mounting between the first module and the second module to couple the first module and the second module to each other.

[0037] In a preferred embodiment, the at least one third prefabricated sub-module comprises a support structure through which the work platform of the second prefabricated sub-module is supported to rest on the support platform, or at least is capable of being supported to rest on the support platform.

[0038] In a preferred embodiment, the method comprises installing a vertical guide rail line in the hoistway for guiding movement of the elevator car and / or the movable machine room.

[0039] In a preferred embodiment, the movable machine room, in particular the first prefabricated sub-module and / or the second prefabricated sub-module, comprises a guide for guiding vertical movement of the movable machine room along the vertical guide rail line of the elevator car.

[0040] In a preferred embodiment, the movable machine room is lifted using a lifting device during lifting of the movable machine room, the lifting device being supported from a support structure mounted in the hoistway above the movable machine room.

[0041] The method according to any of the preceding claims, comprising setting up an elevator control system prior to (first) use for automatically controlling movement of the elevator car, in particular in response to a received call signal.

[0042] In a preferred embodiment, each use of the elevator car to transport passengers and / or cargo comprises receiving a call signal from one or more user interfaces, in particular from one or more user interfaces and / or mobile user interfaces at a floor and / or within the elevator car, and automatically controlling by the elevator control system to move the elevator car in response to the call signal.

[0043] In a preferred embodiment, the support structure is selectively actuatable to extend in a vertical direction by at least 2 meters for lifting the work platform by at least 2 meters. For example, in many locations, a distance of substantially 2 meters is sufficient to allow moving the work platform vertically from a position close to one landing to a position close to another landing to allow easily installing landing door components and / or accessing / accessed from the work platform. Likewise, for example, in many locations, a distance of substantially 2 meters is sufficient to allow moving the work platform vertically from a position close to one support to a position close to another support.

[0044] In a preferred embodiment, the support structure is not actuated during lifting the movable machine room upward to the transport position (I or II).

[0045] In a preferred embodiment, the support structure is locked against extension before lifting the movable machine room upward to the transport position (I or II). Thereby, unintended extension during lifting is avoided.

[0046] In a preferred embodiment, each installation of the movable machine room is performed with at least one releasable mounting mechanism.

[0047] In a preferred embodiment, the releasable mounting mechanism is switchable between a first state, in which the mechanism is engaged with a stationary structure to obtain support from the stationary structure, and a second state, in which the mechanism is released from the engagement.

[0048] In a preferred embodiment, the stationary structure is preferably a shaft wall, a landing sill, a support fixing a rail segment of the rail line to the shaft, or a support fixed to the rail line, e.g. for supporting the movable machine room, or a rail segment of the rail line.

[0049] In a preferred embodiment, the releasable mounting mechanism comprises an arm, which is movable to a first state, in which the arm vertically overlaps a support immovably fixed in the shaft, and which is movable back to a second state, in which the arm does not overlap the support, such that the arm is able to circumvent a support arranged above the aforementioned support when the arm is lifted together with the movable machine room.

[0050] In a preferred embodiment, the releasable mounting mechanism comprises an arm, which is movable over a structure of the landing sill or the shaft wall, such as (in the latter case) over a surface of a recess formed in, for example, the shaft wall or beam, and back from over the structure of the landing sill or the shaft wall.

[0051] In a preferred embodiment, each releasable mounting mechanism comprises a clamp, which is suitable for releasably clamping a rail segment of the rail line.

[0052] In a preferred embodiment, the aforementioned fixed structure comprises one or more of the following: a shaft wall, a landing sill, a support that fixes a rail segment of the rail line to the shaft, a support fixed to the rail line, for example, for supporting a movable machine room, a rail segment of the rail line.

[0053] In a preferred embodiment, the method comprises providing actuating means for selectively actuating the support structure.

[0054] In a preferred embodiment, the vertical movement of the movable machine room is guided by one or more guides comprised in the movable machine room during each lifting of the movable machine room, the one or more guides extending along one or more rail lines.

[0055] In a preferred embodiment, the support platform carries the entire weight of the work platform via at least one selectively actuatable support structure when the movable machine room is installed in the first transport position and / or in the second transport position.

[0056] In a preferred embodiment, the car is built to have an interior space, which is suitable for accommodating one or more passengers; and a door, which is movable between an open and a closed state to open and close the interior space. BRIEF DESCRIPTION OF DRAWINGS

[0057] The application will be described in more detail by way of example and with reference to the accompanying drawings, in which

[0058] Figures 1 to 12 Stages of a method according to an embodiment are shown.

[0059] Figure 13 and Figure 14 Preferred details of Figure 9 and Figure 12 are shown.

[0060] Figure 15 Preferred details of the roping are shown.

[0061] Figure 16 Preferred details of the structure of the movable machine room are shown.

[0062] Figures 17 to 19The alternative preferred details of the releasable mounting mechanism are shown.

[0063] Figures 20 to 23 Details of the alternative preferred support structures are shown.

[0064] Figure 24 The user interface is displayed.

[0065] The above aspects, features, and advantages of the present invention will become apparent from the accompanying drawings and related detailed embodiments. Detailed Implementation

[0066] Figure 1 The diagram illustrates stages of a method according to one embodiment. The method includes constructing a shaft 2 in a building 3 under construction, and installing vertical guide rails 10 within the shaft to guide the movement of an elevator car 4 and / or a movable machine room. First, as... Figure 1 As shown, the guide rail line 10 is provided by immovably mounting the lowermost guide rail segment 11 in the shaft 2 using a bracket 12. Then, as the method continues, the guide rail line 10 gradually extends to a higher position by repeatedly placing the guide rail segment 11 on top of the earlier fixed guide rail segment 11 and immovably fixing it in the shaft 2 using the bracket 12.

[0067] like Figures 2 to 3 As shown, after the lowermost guide rail section is immovably installed in the shaft 2, the method includes constructing a movable machine room 1 at the bottom end of the shaft 2. Therefore, the movable machine room 1 can be constructed in a location where installation work can be carried out safely without the need for a construction site crane.

[0068] like Figure 3 As shown, after constructing the mobile machine room 1, the method includes placing the guide rail segment 11 on top of the previously fixed guide rail segment 11 and immovably securing it in the shaft 2 using the bracket 12. Placement and securing can be achieved by working on the work platform 420 included in the mobile machine room 1. For clarity, Figure 3 Only one guide rail 10 is shown in this view, positioned behind the elevator car 4. Preferably, another guide rail is positioned on the opposite side of the car 4, such that the car is located between the guide rails 10.

[0069] like Figure 4 As shown, after constructing the mobile equipment room 1, the method includes raising the mobile equipment room 1 to an elevated position. Here, the raising is performed using lifting devices 20, 21 that are supported by a support structure 22 above the mobile equipment room 1, preferably a support structure installed in the shaft 2, such as the crossbeam of the deflection platform located above the mobile equipment room 1.

[0070] Following the lifting, the method includes installing the mobile equipment room to the lifting position in the shaft, which is vertically supported on a fixed structure. However, this is not necessary, as the mobile equipment room 1 can alternatively be temporarily supported by lifting devices 20, 21. Alternatives to the aforementioned fixed structure exist. Preferably, the fixed structure includes one or more of the following: shaft wall 2a, landing sill, brackets for fixing the guide rail section 11 of the track line 10 to the shaft 2, or, for example, (some other) brackets fixed to the track line 10 for supporting the mobile equipment room, or the guide rail section 11 of the track line 10.

[0071] like Figure 5 and Figure 6 As shown, after lifting the movable machine room 1 and the aforementioned installation (if the method includes this installation), the method includes constructing an elevator car 4 at the bottom end of the shaft 2 below the movable machine room 1, and installing a counterweight 5 at the bottom end of the shaft below the movable machine room. Since the guide rail section 11 has been installed, additional space can be created below the movable machine room 1, allowing the car 4 and counterweight 5 to fit underneath it. Figure 6 This is achieved by raising the movable machine room 1. During the construction of the elevator car 4, preferably, the elevator car 4 is built above the buffer 13 and is constructed to rest laterally against one or more guide rail sections 11. Preferably, the structural components of the elevator car 4 are mounted on a car frame 4a, which is suspended from the machine room 1, particularly via an auxiliary lifter 7. When setting the counterweight 5, preferably, the counterweight 5 is positioned above the buffer 16.

[0072] like Figure 7 and Figure 8 As shown, after constructing an elevator car 4 below a movable machine room 1 at the bottom of the shaft 2 and setting a counterweight 5, the method includes connecting the elevator car 4 and the counterweight 5 using a suspension rope 6, which is suspended from the movable machine room 1 and passes around at least one sheave 15 of the movable machine room 1, particularly the sheave of the hoist 14, which is a drive wheel that can rotate together with a motor also included in the hoist 14; and then, lifting the movable machine room 1 to a first transport position I. Figure 15 The preferred details of the route for rope 6 are shown. In this configuration, one end of rope 6 is fixed to the movable machine room 1, and the rope begins at the fixed point, descends over at least one pulley of the counterweight 5, then ascends over at least one pulley 15, descends again over at least one pulley of the car 4, and then ascends to the movable machine room 1, specifically the releasable rope clamp, and then passes through the rope clamp to a rope supply reservoir, which is in the form of one or more pulleys from which other ropes required in the method can be obtained. The rope supply reservoirs are preferably installed in the movable machine room 1, but can also be alternatively installed in other locations, such as on a platform or in a shaft pit.

[0073] After lifting the movable machine room 1 to the first transport position I, the method comprises installing the movable machine room 1 to the first transport position I in the hoistway vertically supported on the fixed structure. The installation is performed using one or more releasable installation mechanisms 402 comprised in the movable machine room 1. There are alternatives of the aforementioned fixed structure. Preferably, the aforementioned fixed structure comprises one or more of the following: the hoistway wall 2a, the landing sill, the bracket fixing the rail segment 11 of the track line 10 to the hoistway 2, or (some other) bracket fixed on the track line 10 for supporting the movable machine room, or the rail segment 11 of the track line 10. Preferred alternatives of the installation mechanisms 402 will be described later in connection with Figures 16 to 18 further details.

[0074] As Figure 9 illustrated, after said installation, the method comprises using (also called "first use") the elevator car 4 for transporting passengers and / or cargo below the machine room 1 when the movable machine room 1 is installed in the first transport position I and the elevator car 4 and the counterweight 5 are suspended from the machine room 1 by the hoisting ropes 6. Using the elevator car for transporting passengers and / or cargo comprises receiving a call signal from one or more user interfaces 90, such as one or more user interfaces 90 at the landings and / or inside the elevator car and / or a mobile user interface, and moving the elevator car in response to the call signal, which is automatically controlled by the elevator control system 100. To this end, the method, such as the steps of constructing the movable machine room 1, comprises setting up the elevator control system 100 for automatically controlling the movement of the elevator car 4, in particular by automatically operating the machine 14, prior to the (first) use.

[0075] As Figure 9 illustrated, also after said installation, preferably at least partly during the first use, the method comprises placing the rail segment 11 of the track line 10 on top of the earlier fixed rail segment 11 and immovably fixing it in the hoistway 2 with the bracket 12. Thus, the track line(s) 10 can be configured to extend to a higher position during the transport use of the elevator. As will be further described later, said placing and fixing can be implemented by working on top of the work platform 420 comprised in the movable machine room 1. The work can involve moving the work platform 420 up and down.

[0076] After the first use, the method comprises lifting the movable machine room 1 up to a second transport position II; wherein the second transport position II is higher than the first transport position I; and thereafter installing the movable machine room 1 in the second transport position II in the shaft 2 vertically supported on a fixed structure. The installation is performed using one or more releasable installation mechanisms 402 comprised in the movable machine room 1. There are alternatives of the aforementioned fixed structure. Preferably, the aforementioned fixed structure comprises one or more of the following: a shaft wall 2a, a landing sill, a bracket fixing a rail segment 11 of the rail line 10 to the shaft 2, or (some other) bracket fixed on the rail line 10 for supporting the movable machine room, or a rail segment 11 of the rail line 10.

[0077] In lifting the movable machine room 1 up to the second transport position II, the movable machine room is preferably lifted with a lifting device 20, 21 supported from a support structure 22 installed in the shaft 2 above the movable machine room 1.

[0078] As shown in Figure 11 After installing the movable machine room 1 to the second transport position II, the method comprises using (also called "secondary use") the elevator car 4 for transporting passengers and / or goods below the movable machine room 1 while the elevator car 4 and the counterweight 5 are suspended from the movable machine room 1 by the hoisting ropes 6, when the movable machine room 1 is installed in the second position II.

[0079] The secondary use of the elevator car 4 for transporting passengers and / or goods preferably comprises receiving call signals from one or more user interfaces 90, in particular one or more user interfaces 90 at the landings and / or inside the elevator car and / or mobile user interfaces, and moving the elevator car 4 in response to the call signals controlled automatically by the elevator control system 100.

[0080] As shown in Figure 12 Also, after installing the movable machine room 1 to the second transport position II, preferably at least partly during the secondary use, the method comprises placing a rail segment 11 of the rail line 10 on top of an earlier fixed rail segment 11 and immovably fixing it in the shaft 2 with a bracket 12. Thus, the rail line(s) 10 can be configured to extend to a higher position during the transport use of the elevator. The placing and fixing can be implemented by working on top of a work platform 420 comprised in the movable machine room 1. As will be further described later, the work can involve moving the work platform 420 up and down.

[0081] Details of the movable machine room 1 and preferred but not necessary construction details will be further described later.

[0082] Preferably, the movable machine room 1 comprises a hoist's support platform 411 comprising one or more releasable mounting mechanisms 402 mounted on the support platform for releasably mounting the movable machine room 1 in the hoistway 2, and a hoist 14 mounted on the support platform 411, and a work platform 420 above the support platform 411, the work platform 420 preferably also forming the top of the movable machine room 1. In order to be able to work safely, the work platform 420 preferably comprises a handrail 421. The work platform 420 further comprises at least one support structure 430, 430', 430" supporting the work platform 420 resting on the support platform 411. Preferably, the work platform 420 comprises at least two support structures 430, 430', 430". For example, preferred components of the movable machine room 1 are shown in Figure 3 and Figure 15 Essentially, the support structures 430, 430', 430" can be positioned freely to suit the layout, but are preferably close to two opposite side edges of the support platform 411.

[0083] Preferably, in erecting the movable machine room 1, the movable machine room 1 is erected resting on the floor of the hoistway 2.

[0084] As shown in Figure 2 Preferably, the erection is performed by pre-fabricated sub-modules. In this case, erecting the movable machine room comprises transporting a plurality of pre-fabricated sub-modules 41-43 into the bottom end of the hoistway 2, and connecting the plurality of pre-fabricated sub-modules 41-43 to each other in the bottom end of the hoistway 2.

[0085] Preferred details of the pre-fabricated sub-modules 41-43 are described below with reference to Figure 3 and Figure 16

[0086] Preferably, the plurality of pre-fabricated sub-modules comprises a first pre-fabricated sub-module 41 comprising a hoist's support platform 411 comprising one or more releasable mounting mechanisms 402 mounted on the support platform for mounting the movable machine room 1 in the hoistway 2, possibly also comprising a pre-installed hoist.

[0087] Preferably, the plurality of pre-fabricated sub-modules comprises a second pre-fabricated sub-module 24 comprising a work platform 420 forming the top of the movable machine room 1 and comprising a handrail 421.

[0088] ​Preferably, the plurality of prefabricated sub-modules comprises at least one, but preferably two, third prefabricated sub-modules 43 adapted to be installed between the first module 41 and the second module 42 to couple the first module 41 and the second module 42 to each other. Preferably, the at least one third prefabricated sub-module 43 comprises a support structure 430” by which the work platform 420 of the second prefabricated sub-module 42 can rest on the support platform 411 of the first prefabricated sub-module 41. Preferred alternatives of the support structure 430” will be described later with reference to Figures 20 to 23 is shown.

[0089] Preferably, the movable machine room 1, in particular the first prefabricated sub-module 41 and / or the second prefabricated sub-module 42, comprises a guide 401 for guiding the vertical movement of the movable machine room 1 along the vertical guide rail line 10 of the elevator car 4.

[0090] When the movable machine room 1 comprises a plurality of prefabricated sub-modules connected to each other, the method comprises, after having used the elevator car for transporting passengers and / or cargo at least once, disassembling the movable machine room, which preferably comprises disconnecting the connection of one or more sub-modules of the machine room, and using components from the disassembled machine room, preferably from one or more sub-modules of the disassembled machine room, to build a movable machine room in the bottom end of another hoistway of a hoistway formed in another different building under construction. As Figure 2 shown similarly, in this case, building the movable machine room 1 in the bottom end of another hoistway comprises transporting the plurality of prefabricated sub-modules from the disassembled machine room to the bottom end. The method preferably comprises converting the construction period elevator into a permanent elevator. The conversion can comprise replacing components of the disassembled movable machine room with components intended to form permanent components of the elevator under construction. Preferably, in the conversion, the guide rail line 10, the car 4 and the counterweight are left at least partially to form permanent components of the elevator under construction. Components that can be replaced are the ropes, the hoisting machine and the support structure of the hoisting machine. The support structure can comprise, for example, the formation of the machine room floor and / or the installation of the base plate.

[0091] Said support structure 430” is preferably selectively actuatable to extend in the vertical direction to lift the work platform 420 to a higher position above the support platform 411 or to contract in the vertical direction to drop the work platform 420 towards the support platform 411. By “selectively actuatable” is meant that the support structure 430 is actuatable to extend and contract and that it is selectable whether to cause extension or contraction by actuation.

[0092] Preferred details of the method in which the support structure 430, 430’, 430”, 430”’ is actuatable as above will be described later.

[0093] As Figure 9 andFigure 12 As shown, the method comprises, when the movable machine room 1 (in the installed state) is located in the hoistway 2 in the transport position (I or II), installing an elevator component from the work platform 420 in a portion of the hoistway 2 above the support platform 411 using the work platform 420, which comprises moving the work platform 420 up and down using the support structure 430 which is selectively actuatable to extend or retract.

[0094] More specifically, the using comprises one or more actuations of the support structure 430 to extend in the vertical direction for lifting the work platform 420 to a higher position above the support platform 411 and one or more actuations of the support structure 430 to retract in the vertical direction for lowering the work platform 420 towards the support platform 411. Thereby, the back and forth movement is achieved and work can be performed at different heights above the support platform 411. It also enables work to be performed at a relatively high position above the support platform 411 and subsequently lowering the work platform 420 towards the support platform 411, thereby making the movable machine room 1 compact and relatively easy and rigid to vertically lift to a higher position in the hoistway 2. Figure 13 and Figure 14 Preferred details of the using of the support structure 430 are shown. The figures show side views to show a pair of guide lines 10.

[0095] The support structure 430 is actuatable to extend in the vertical direction at least 2 meters from a retracted state for lifting the work platform 420 at least 2 meters. Thereby, the above-mentioned advantages are essentially achieved. The distance is essentially relatively long, preferably at least 2 meters, preferably longer, e.g. in many locations sufficient to allow vertical movement of the work platform 420 from a position close to one landing to a position close to another landing, which allows easy installation of landing door components and / or access to / from the work platform. Likewise, the distance is essentially relatively long, preferably at least 2 meters, preferably longer, e.g. in many locations sufficient to allow vertical movement of the work platform 420 from a position close to one support to a position close to another support, which allows easy installation and / or use of the support, e.g. during installation of the guide segments or the support itself.

[0096] In e.g. Figure 7 and Figure 10 As shown, the support structure 430 is not actuated during each lifting of the movable machine room 1 upwards to the transport position (I or II). Preferably, the support structure 430 is locked from extension prior to lifting of the movable machine room 1 upwards to the transport position (I or II), thereby locking its actuation during the lifting.

[0097] Generally, in order to achieve releasable mounting and in turn temporary mounting, the movable machine room 1 comprises one or more releasable mounting mechanisms 402 for releasably mounting the movable machine room 1 to be supported vertically. Preferably, the releasable mounting mechanisms 402 are switchable between a first state, in which the mechanism is engaged with a fixed structure for obtaining support from the fixed structure, the fixed structure preferably being a shaft wall 2a, a landing sill, a bracket fixing a rail segment 11 of the rail line 10 to the shaft, or for example a bracket for supporting the movable machine room fixed to the rail line 10, or a rail segment 11 of the rail line 10, and a second state, in which the releasable mounting mechanism 402 is released from the engagement.

[0098] In the following, a preferred embodiment of the releasable mounting mechanism 402 will be described.

[0099] In the embodiment of Figure 17 , the releasable mounting mechanism 402 comprises an arm, which is movable to a first state, in which the arm vertically overlaps a bracket 12 fixed immovably in the shaft, and which is movable back to a second state, in which the arm does not overlap the bracket 12, so that the arm is able to go around the bracket arranged above the aforementioned bracket 12 when the arm is lifted together with the movable machine room 1. In the embodiment of Figure 17 , the arm is movable between the different states with horizontal linear movement, but alternatively the arm is movable between the different states with pivoting movement.

[0100] In the embodiment of Figure 18 , the releasable mounting mechanism 402 comprises an arm, which is movable over a structure of the shaft wall 2a, in particular over a surface of a recess formed in the shaft wall 2a, and back from over the structure of the shaft wall 2a, the first state being a state in which the arm extends over the structure of the shaft wall 2a, and the second state being a state in which the arm is retracted from over the structure of the shaft wall. In the embodiment of Figure 18 , in particular, the first state is a state in which the arm extends into the recess, and the second state is a state in which the arm extends out of the recess. Alternatively, the structure of the shaft wall 2a can be a beam of the shaft wall, and the surface can be an upper surface of the beam. Alternatively, the structure over which the arm is movable can be a landing sill, i.e. a sill of a doorway leading to a floor.

[0101] In the embodiment of Figure 19In one embodiment, the releasable mounting mechanism 402 includes a clamp 180 adapted to releasably clamp the guide rail segment 11 of the guide rail line 10. In this case, a first state of the releasable mounting mechanism 402 is that the clamp holds the guide rail line 10 using clamping members on the opposite side of the guide rail segment 11 of the guide rail 10, and a second state is that the clamp does not clamp the guide rail 10. Generally, a clamp adapted for releasably clamping the guide rail line 10 can be implemented as a wedge clamp with the wedge direction downwards (e.g., Figure 19 In the embodiments described above, or alternatively, implemented as, for example, a fixed brake caliper or a floating brake caliper. One or both clamping members may be movable to compress and release the compression of the guide rail segment 11 of the guide rail line 10 between the clamping members. If only one clamping member is movable, the clamp preferably has a floating frame (also called a "caliper") known from brake calipers. If both clamping members are movable, the clamp preferably has a fixed frame (also called a "caliper") known from brake calipers. This is Figure 19 The situation in the embodiments.

[0102] Figure 19 The embodiment is described more specifically below. The gripper 180 includes a frame 181 having a slit for the guide rail 10; and two wedge-shaped brake shoes 182, which are disposed on opposite sides of the guide rail 10 as gripping members. The brake shoes 182 can be movably supported on the frame 181 from a wedge surface by means of rollers 183. A spring 184 can be disposed between a first end of the brake shoe 182 and the frame 181. The second opposite end of the brake shoe 182 can be supported on a slider 185, which slides within a cylinder 186. A power unit, such as a hydraulic power unit 210, can be provided to power the gripper 180. The hydraulic power unit 210 can include an electric motor 211, a hydraulic pump 212, and a reservoir 250. The hydraulic pump 212 pumps oil from the reservoir 250 to the cylinder 186, thereby moving the slider 185 within the cylinder 186.

[0103] Pressurized fluid is supplied to the plunger 185 in cylinder 186, which overcomes the force of spring 184 and presses the brake shoe 182 downward as shown in the figure. Therefore, the brake shoe 182 is removed from the guide surface of guide rail 10. Thus, the movable housing 1 can move freely on guide rail(s) 10.

[0104] Pressurized fluid is drawn from cylinder 186, which allows brake shoe 182 to move upwards as shown in the figure due to the force generated by spring 184 acting on the second end of brake shoe 182. Therefore, brake shoe 182 moves until it contacts the guide surface of guide rail 10. Thus, support structure 411 becomes locked relative to guide rail 10.

[0105] It is possible to provide only the hydraulic unit 210 for the gripper 180. Another possibility is to provide a common main hydraulic unit for all devices that need to be powered hydraulically on the work platform 420 on the support platform 411. Hydraulic valves can be used to connect the different devices to the common main hydraulic power unit.

[0106] In Figure 19 In an embodiment of the device, the gripper 180 comprises two wedge-shaped brake shoes 182.

[0107] As an alternative, the gripper 180 can be operated electromechanically. An electromechanical device can be used to press the brake shoes 182 against the force of the spring 184. Deactivating the electromechanical device actuates the brake shoes 182 against the guide rail line 10.

[0108] In addition to the above-described variants of the brake configuration, several other known types of full brake mechanisms can be applied to achieve the brake / gripping function as described above. For example, some elevator systems comprise a brake system in which the gripping of the guide rail is produced by means of a jaw-type claw and associated friction lining. Such a lever brake can be used as a further alternative.

[0109] Preferred details of the support structure 430, 430', 430", 430"' will be described in the following.

[0110] Figures 20 to 23 An alternative embodiment of the support structure 430 is shown, which is selectively actuatable to extend in the vertical direction to obtain a counterforce from the support structure 430 to lift the work platform 420 to a higher position above the support platform 411 or to contract in the vertical direction to let the work platform 420 fall back towards the support platform 411.

[0111] Figure 20 One embodiment is schematically shown in which the support structure 430 comprises an upright tower 431 which is selectively actuatable to extend or contract in the vertical direction.

[0112] The upright tower 431 is connected between the work platform 420 and the support structure 411. The upright tower 431 comprises a plurality of parallel elongated tower members 432, 433 which are movable relative to each other. The elongated tower members 432, 433 are vertically oriented beams and the support structure comprises actuating means 434, 435 for moving the tower members relative to each other to extend or contract the tower 431. The elongated tower members 432, 433 are supported against each other for movement relative to each other such that one tower member guides the other tower member, which can for example be achieved by placing the tower members in a telescoping configuration or arranging them with an interlocking profile for movement relative to each other.

[0113] In Figure 20In an embodiment, the actuation means 434, 435 comprises an electric motor 434 arranged to rotate a drive wheel 436, such as a belt, around which a flexible member 435 is arranged to move. The flexible member 435 is arranged to pass over a wheel mounted at an upper end of the first tower member 432 and return downwards to a fixed point at a lower end of the second tower member 433. Thus, rotation of the electric motor in one direction is arranged to pull the second tower member 433 upwards relative to the first tower member 432, and rotation of the electric motor in the other, i.e. opposite, direction is arranged to allow the second tower member 433 to move downwards relative to the first tower member 432 under the influence of gravity. The flexible member 435 passes around both sides of the drive wheel 436 to a fixed point 438 arranged to move with the second tower member 433, whereby the flexible member 435 forms a closed loop and does not need to be wound around the drive wheel 436. However, this is another alternative way of implementing this embodiment. In this case, the flexible member 435 is fixed at one end to a fixed point at a lower end of the second tower member 433 and at the other end to a fixed point on the drive wheel 436.

[0114] Figure 21 An embodiment is schematically illustrated in which the support structure 430' comprises an upright tower 431' that can be selectively actuated to extend or contract in the vertical direction.

[0115] The upright tower 431' is connected between the work platform 420 and the support structure 430. The upright tower 431' comprises a plurality of parallel elongate tower members 432, 433, 437 that are movable relative to each other.

[0116] The elongate tower members 432, 433, 437 are vertically oriented beams and the support structure comprises actuation means 434, 435 for moving the tower members relative to each other to extend or contract the tower 431'. The elongate tower members 432, 433, 437 are supported against each other for movement relative to each other such that one tower member guides the other, which can for example be achieved by placing the tower members in telescoping configuration or arranging them to have an interlocking profile for movement relative to each other.

[0117] In Figure 21In an embodiment, the actuating means 434, 435 comprises an electric motor 434 arranged to rotate a drive wheel 436, and a flexible member 435, such as a belt, is passed around the drive wheel, and rotation of the wheel is arranged to move the flexible member 435. The flexible member 435 is arranged to pass over a wheel mounted at the upper end of the first tower member 432 and return downwards and pass around and below a wheel mounted at the lower end of the second tower member 433, and again pass upwards over a wheel mounted at the upper end of the second tower member 433, to above the wheel and return downwards to a fixed point at the lower end of the third tower member 437. Thus, rotation of the electric motor in one direction is arranged to pull the second tower member 433 upwards relative to the first tower member 432, and rotation of the electric motor in the other, i.e. opposite, direction is arranged to allow the second tower member 433 to move downwards relative to the first tower member 432 under the influence of gravity. Furthermore, rotation of the electric motor in one direction is arranged to pull the third tower member 437 upwards relative to the second tower member 433, and rotation of the electric motor in the other, i.e. opposite, direction is arranged to allow the third tower member 437 to move downwards relative to the second tower member 433 under the influence of gravity. The flexible member 435 passes around both sides of the drive wheel 436 to a fixed point 438 arranged to move with the third tower member 437, whereby the flexible member 435 forms a closed loop, and does not need to be wound around the drive wheel 436. However, this is another alternative way of implementing this embodiment. In this case, one end of the flexible member 435 is fixed to a fixed point at the lower end of the third tower member 433, and the other end is fixed to a fixed point on the drive wheel 436.

[0118] Figure 22 An embodiment is schematically illustrated in which the support structure 430" comprises an upright tower 431" that can be selectively actuated to extend or contract in the vertical direction. The upright tower 431" is connected between the work platform 420 and the support structure 430. The upright tower 431" comprises a plurality of parallel elongate tower members 432, 433 that are movable relative to each other. The elongate tower members 432, 433 are vertically oriented hydraulic cylinders and pistons that are selectively actuatable hydraulically to extend or contract. The support structure comprises actuating means 434" for moving the tower members relative to each other to extend or contract the tower 431, which comprises a hydraulic pump 439a and hydraulic fluid 439b that is stored in a reservoir for pumping into the chambers 439c of the hydraulic cylinders.

[0119] Figure 23 An embodiment is schematically illustrated in which the support structure 430"' comprises a scissors jack mechanism that can be selectively actuated to extend or contract in the vertical direction.

[0120] In Figure 23In a preferred embodiment, the scissor jack mechanism comprises two support arms 610, 620 connected via a hinged joint J31. The upper end of each support arm 610, 620 is connected with the working platform 420 via a hinged joint J21, J22. The lower end of each support arm 610, 620 is connected with the support platform 411 via a hinged joint J11, J12.

[0121] Each of the hinged joints J11, J12 at the lower deck 110 should be arranged such that it allows the end portions of the support arms 610, 620 to move relative to each other in a horizontal direction, but prevents the end portions of the support arms 610, 620 to move relative to each other in a vertical direction.

[0122] The actuating device 630, in particular the actuator 630, is arranged to actuate the scissor jack mechanism to selectively extend or contract in a vertical direction. The actuator 630 can be connected with a rod 640 which horizontally passes through and is mounted on the support platform 411, or on an upper base or equivalent. The rod 640 can be formed as a worm screw. The lower end of the first support arm 610 can be attached to the actuator 630 via the shaft 640. The lower end of the first support arm 610 can be provided with a hinged joint which cooperates with the worm screw 640. The worm screw 640 can be attached to the lower end portions of the support arms 610, 620 via an engagement portion. The outer end of the worm screw 640 can be supported on the support platform 411. Rotation of the actuator 630 in a first direction will cause the lower ends of the support arms 610, 620 to move towards each other, whereby the support platform 411 and the working platform 420 move in a direction away from each other. Rotation of the actuator 630 in a second opposite direction will cause the lower ends of the support arms 610, 620 to move away from each other, whereby the support platform 411 and the working platform 420 move in a direction towards each other. Thus, the working platform 420 can be selectively raised or lowered relative to the support platform 411 using the actuator 630. The actuator 630 can be formed by an electric motor, for example an electric motor which rotates the worm screw 640. A pair of scissor jack mechanisms 600 can be used, i.e. one hinged jack 600 can be provided on each side edge of the support platform 411 and the working platform 420, respectively. As an alternative to a worm screw, the actuator 630 of the scissor jack mechanism 600 can be a hydraulic cylinder-piston actuator.

[0123] For example, a cylinder-piston actuator can then extend between the support platform 411 and the upper portion of either of the support arms 610, 620. The scissor jack mechanism 600 can further comprise several layers of laterally extending support arms which are stacked on top of each other. As yet another alternative, a hydraulic cylinder-piston actuator can be arranged horizontally to selectively push or pull one of the end portions of the support arms 610, 620 along a guide rail.

[0124] Generally, with respect to actuation, also gravity can be utilized to cause or assist retraction. Actuation retraction need not necessarily actually produce a movement with the actuation means 434, 435; 434', 435'; 434"; 630, such as a motor rotation, or a tower shortening, or a retraction movement of a scissors jack mechanism. This is because, for example, a transition of the actuation means 434, 435; 434', 435'; 434"; 630 into a free oscillation mode or a braking mode can be utilized. For example, in the embodiment of Figure 19 and Figure 20 a motor 434 can be transitioned into free rotation, or a torque for braking a gravity induced rotation is generated, to control retraction. Likewise, for example, in the embodiment of Figure 21 actuation retraction can comprise transitioning a hydraulic circuit to cause a pressure release in a chamber 439c, preferably in a controlled manner, to maintain a pressure for braking a gravity induced hydraulic cylinder retraction, in turn to control retraction. Likewise, for example, in the embodiment of Figure 22 actuation retraction can comprise that the actuation part 630 can be transitioned into free rotation, or a torque for braking a gravity induced rotation is generated, to control retraction.

[0125] As shown in Figure 24 , preferably, an operation interface 500 is connected to the individually selectively actuatable support structures of the movable building, in particular to the actuation means 434, 435; 434', 435'; 434"; 630 of the individually selectively actuatable support structures of the movable building 1, for example by a wired or wireless connection. The operation interface 500 is preferably manually operable by a person. The operation interface 500 can be in the form of an operation panel, such as a button panel or a touch screen. The aforementioned use of the work platform preferably comprises operating the operation interface 500. The operation interface 500 in the form of an operation panel can for example comprise a mobile device, such as a mobile phone or a tablet, wherein a software application adapted to receive user instructions is installed and / or run.

[0126] Generally, some advantages of the method can be achieved even if some details differ from the shown and described examples. For example, many advantages of the modularity and / or the sequence of setting up and moving the movable building, the tank and the counterweight in the shaft can be achieved even if the lifting of the building differs. For example, some advantages can also be achieved if at least one individually selectively actuatable support structure is to be used for enabling the movable building to climb in the shaft.

[0127] It is generally preferred that the work platform 420 is located at least 1.5 meters above the support platform 411, preferably at least 1.8 meters, thereby providing a considerable space between the two for work and / or safe habitation. This is preferably the case whenever. Thus, in case the at least one support structure 430; 430'; 430"; 430"'; 430"" is selectively actuatable to extend or retract, it is preferred that the at least one support structure 430; 430'; 430"; 430"'; 430"" is in a retracted state.

[0128] It is to be understood that the foregoing description and the accompanying drawings are only intended to teach the best way known to the inventors to make and use the application. It will be apparent to those skilled in the art that many variations and modifications can be made to the described embodiments without departing from the scope of the application. It is my intent, therefore, to cover all such variations and modifications that fall within the scope of the application, as claimed.

Claims

1. A method for constructing an elevator, comprising constructing a movable machine room (1) in a bottom end of a shaft (2) formed in a building (3) under construction; and thereafter, lifting the movable machine room (1); and in the bottom end of the shaft below the movable machine room (1) a lift car (4) is built; and providing a counterweight (5) below the movable machine room (1) in the bottom end of the shaft (2); connecting the elevator car (4) and the counterweight (5) with a hoisting rope (6); and thereafter, lifting the movable machine room (1) to a first transport position (I); and thereafter, installing the movable machine room (1) to the first transport position (I) in the shaft (2) supported vertically on a fixed structure; and thereafter, using the elevator car (4) for transporting passengers and / or goods below the movable machine room (1) when the movable machine room (1) is installed to the first transport position (I); and thereafter, lifting the movable machine room (1) upwards to a second transport position (II); wherein the second transport position (II) is higher than the first transport position (I); and thereafter, installing the movable machine room (1) to the second transport position (II) in the shaft (2) supported vertically on a fixed structure; and thereafter, using the elevator car (4) for transporting passengers and / or goods below the movable machine room (1) when the movable machine room (1) is installed to the second position (II), characterized in that constructing the movable machine room (1) comprises transporting a plurality of prefabricated sub-modules (41-43) to the bottom end of the shaft (2) and connecting the plurality of prefabricated sub-modules (41-43) to each other in the bottom end of the shaft (2), wherein the plurality of prefabricated sub-modules (41-43) comprises: a first prefabricated sub-module (41) comprising a support platform (411) of a hoisting machine, the support platform comprising one or more releasable mounting mechanisms (402) mounted on the support platform for releasably mounting the movable machine room (1) in the shaft (2), possibly also comprising a pre-installed hoisting machine; and / or a second prefabricated sub-module (42) comprising a work platform (420) forming a top of the movable machine room (1) and comprising a handrail; and / or at least one third prefabricated sub-module (43) adapted for being mounted between the first module (41) and the second module (42) for coupling the first module (41) and the second module (42) to each other.

2. The method according to claim 1, wherein in the construction of a movable machine room (1), the movable machine room (1) is constructed to rest in the bottom end of the shaft (2) supported by a floor of the shaft (2).

3. The method according to any one of claims 1-2, wherein in the construction of an elevator car (4), the elevator car (4) is constructed above a buffer; and / or the elevator car (4) is constructed to lean laterally against one or more guide rail lines (10); and / or the elevator car (4) is constructed to be supported by a roof of the elevator car (4) and / or by a roof of the movable machine room (1). When the car frame is suspended from the machine room (1), the structural parts of the elevator car (4) are mounted on the car frame (4a).

4. The method according to any of claims 1-2, wherein the method comprises, after use of the elevator car for transporting passengers and / or cargo, dismounting the movable machine room, and using parts from the dismounted machine room (1) for building a movable machine room (1) in the bottom end of another hoistway.

5. The method according to any of claims 1-2, wherein the movable machine room (1) comprises: a support platform (411) of a hoist (14), the support platform (411) comprising one or more releasable mounting mechanisms (402) for releasable mounting of the movable machine room (1) in the hoistway (2), and a hoist (14) mounted on the support platform (411); a work platform (420) above the support platform (411); and at least one support structure (430; 430'; 430"; 430"') by which the work platform (420) is supported to rest on the support platform (411).

6. The method according to any of claims 1-2, wherein the support structure (430; 430'; 430"; 430"') is selectively actuatable to obtain a reaction force from the support platform (411) to extend in a vertical direction for lifting the work platform (420) to a higher position above the support platform (411), or to contract in a vertical direction for lowering the work platform (420) towards the support platform (411).

7. The method according to any of claims 1-2, wherein the method comprises, when the movable machine room (1) is in a transport position (I or II) in the hoistway (2), using the work platform (420) for mounting elevator parts from the work platform (420) in a section of the hoistway (2) above the support platform (411), the using comprising moving the work platform (420) up and down with the selectively actuatable support structure (430; 430'; 430"; 430"').

8. The method according to any of claims 1-2, wherein the using comprises one or more actuations of the support structure (430; 430'; 430"; 430"') to extend in a vertical direction for lifting the work platform (420) to a higher position above the support platform (411), and one or more actuations of the support structure (430; 430'; 430"; 430"') to contract in a vertical direction for lowering the work platform (420) towards the support platform (411). ​ 9. The method according to any of claims 1-2, wherein the support structure (430; 430'; 430") comprises an upright tower (431; 431'; 431") that is selectively actuatable to extend or contract in a vertical direction.

10. The method according to any of claims 1-2, wherein the support structure (430"') comprises a scissors jack mechanism (610, 620) that is selectively actuatable to extend or contract in a vertical direction.

11. The method according to any of claims 1-2, wherein the at least one third prefabricated sub-module (43) comprises a support structure (430; 430'; 430"; 430"') on which the work platform (420) of the second prefabricated sub-module (42) is supportable for resting on the support platform (411).

12. The method according to any of claims 1-2, wherein the method comprises installing a vertical guide rail line (10) in the shaft for guiding movement of the elevator car (4) and / or the movable machine room (1).

13. The method according to any of claims 1-2, wherein the movable machine room (1) comprises a guide (401) for guiding vertical movement of the movable machine room (1) along a vertical guide rail line (10) of the elevator car (4).

14. The method according to any of claims 1-2, wherein in the lifting of the movable machine room (1), the movable machine room (1) is lifted with a lifting device (20, 21) that obtains support from a support structure (22) installed in the shaft above the movable machine room (1).

15. The method according to any of claims 1-2, wherein each use of the elevator car (4) for transporting passengers and / or cargo comprises receiving a call signal from one or more user interfaces (90) and moving the elevator car (4) automatically controlled by an elevator control system (100) in response to the call signal.

16. The method according to any of claims 1-2, wherein each installation of the movable machine room (1) is performed with at least one releasable mounting mechanism (402).

17. The method according to claim 3, wherein the car frame is suspended by an auxiliary hoist (7).

18. The method according to claim 4, the dismounting comprising disconnecting connections of one or more of the prefabricated sub-modules (41-43) of the machine room (1).

19. The method according to claim 4, the components from the dismounted machine room (1) comprising the one or more prefabricated sub-modules (41-43) from the dismounted machine room (1).

20. The method according to claim 4, the other shaft being a shaft formed in another different building under construction.

21. The method of claim 5, said work platform (420) forming a roof of said movable machine room (1) and / or comprising a handrail (421).

22. The method of claim 13, said movable machine room (1) being said first prefabricated sub-module (41) and / or said second prefabricated sub-module (42).

23. The method of claim 15, wherein receiving a call signal comprises receiving a call signal from one or more user interfaces (90) and / or mobile user interfaces at a floor and / or within an elevator car.

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