WO2023160819A1

WO2023160819A1 - An elevator construction arrangement and a method

Info

Publication number: WO2023160819A1
Application number: PCT/EP2022/054954
Authority: WO
Inventors: Mika IJÄS; Matti RÄSÄNEN; Mikko Kukkola; Markku Haapaniemi; Janne Laine; Otto Lanz
Original assignee: Kone Corporation
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2023-08-31
Also published as: AU2022442354A1; CN118786086A

Abstract

An elevator construction arrangement comprises: a hoistway (1) in a building (100), an elevator car (10), a counterweight (13), car guide rails (8) for guiding the car and counterweight guide rails (9) for guiding the counterweight, an elevator hoisting machine (30, 51) and a suspension roping (31) arranged to suspend the car and the counterweight during construction time use of the elevator, a protection deck (2, 2') mounted within the hoistway (1) during an elevator installation in a bottom section of the hoistway, a hoist device (6) for hoisting a working platform (10, 80), the hoist device preferably comprises a man riding hoist (6a) attachable to the car (10) or to an installation platform (80), and a hoist rope (6b) attachable to the car (10) or to the installation platform (80) and movable with the hoist device, and a hoisting point (6c, 61) configured to support the working platform (10, 80) via the hoist device (6a) and the hoist rope (6b). During the elevator installation in the bottom section of the hoistway (1) the hoisting point is configured to be mounted to the protection deck (2, 2') and the working platform (10, 80) guided on the car guide rails (8) is configured to be used as an installation platform in the bottom section, and during the elevator installation in a top section of the hoistway above the bottom section, the hoisting point is configured to be moved to a ceiling (T) of the hoistway (1) and the working platform (10, 80) is configured to be used as the installation platform in the top section after the protection deck (2, 2') is removed from the hoistway, and during construction time use of the elevator, the car (10) is configured to be moved by the elevator hoisting machine (30, 51) suspending the car (10) and the counterweight (13) together with the suspension roping (31), for transporting people and/or goods, while the hoisting point and the hoist device (6) are removed from the hoistway. A method for installing an elevator during construction of a building (100).

Description

AN ELEVATOR CONSTRUCTION ARRANGEMENT AND A METHOD

FIELD OF THE INVENTION

The invention relates to an elevator construction arrangement and a method for installing an elevator during construction of a building.

BACKGROUND OF THE INVENTION

The construction of an elevator may especially in high-rise buildings be done in parts along the height of the hoistway. The guide rails and the landing doors may first be installed to a first height in the hoistway, then to a second height etc. A construction time elevator may then be operated on the already installed lower portion of the hoistway while the construction of the elevator is going on in a higher portion of the hoistway.

An installation platform may be used for the construction of the elevator above the construction time elevator operating in the lower portion of the hoistway.

With a traditional elevator installation method, the installation can start only when the roof is closed.

SUMMARY OF THE INVENTION

An object of the present invention is to present an improved elevator construction arrangement and an improved method for installing an elevator during construction of a building.

It is brought forward a new elevator construction arrangement comprising a hoistway in a building, an elevator car, a counterweight, car guide rails for guiding the car and counterweight guide rails for guiding the counterweight, an elevator hoisting machine and a suspension roping arranged to suspend the car and the counterweight during construction time use of the elevator, a protection deck mounted within the hoistway during an elevator installation in a bottom section of the hoistway, a hoist device for hoisting a working platform, the hoist device preferably comprises a man riding hoist attachable to the car or to an installation platform, and a hoist rope attachable to the car or to the installation platform and movable with the hoist device, a hoisting point configured to support the working platform via the hoist device and the hoist rope, wherein during the elevator installation in the bottom section of the hoistway the hoisting point is configured to be mounted to the protection deck and the working platform guided on the car guide rails is configured to be used as an installation platform in the bottom section, during the elevator installation in a top section of the hoistway above the bottom section, the hoisting point is configured to be moved to a ceiling of the hoistway and the working platform is configured to be used as the installation platform in the top section after the protection deck is removed from the hoistway, and during construction time use of the elevator, the car is configured to be moved by the elevator hoisting machine suspending the car and the counterweight together with the suspension roping, for transporting people and/or goods, while the hoisting point and the hoist device are removed from the hoistway.

In a preferred embodiment, the protection deck comprises a material hoist configured to hoist construction material below the protection deck.

In a preferred embodiment, the material hoist is configured to hoist car guide rails and counterweight guide rails and other heavy elevator components.

In a preferred embodiment, the working platform is configured to lift guide rails and other heavy elevator components.

In a preferred embodiment, the arrangement comprises an overspeed governor to be suspended by the protection deck during the bottom section installation and by a structure of the building such as the ceiling or a machine room during the top section installation.

In a preferred embodiment, guide rails are configured to be installed through the protection deck, particularly through a cover comprised by the protection deck.

In a preferred embodiment, the elevator installation in the bottom section of the hoistway is started when the building has reached 1/4 - 3/4, preferably 1/2 - 3/4, most preferably approximately 2/3, of the final height, preferably the protection deck is mounted within the hoistway approximately at a height of 1/4 - 3/4, preferably 1/2 - 3/4, most preferably approximately 2/3, of the final height of the building.

In a preferred embodiment, the elevator installation in the top section is started after the building is in full height.

In a preferred embodiment, the elevator installation in the top section is started after the ceiling is closed.

In a preferred embodiment, in case of a machine-room-less elevator, the elevator hoisting machine installed at a top of the hoistway is supported by a car guide rail, and rope suspenders for fixing ends of the suspension roping are supported by the guide rails.

In a preferred embodiment, in case of a machine room elevator the elevator hoisting machine and rope suspenders for fixing an end of the suspension roping are installed in a machine room.

In a preferred embodiment, the hoisting point comprises a connecting member equipped with an eye/opening or a corresponding means of attachment for a hook or a corresponding gripping member supporting a diverting pulley to rotatably guide and support the hoist rope.

In a preferred embodiment, in case of the machine-room-less elevator, the overspeed governor is moved from the ceiling to the car guide rail opposite the car guide rail supporting the elevator hoisting machine.

In a preferred embodiment, the working platform comprises the car or at least parts of the car to be guided on the car guide rails.

In a preferred embodiment, the working platform comprises the installation platform.

It is also brought forward a new method for installing an elevator during construction of a building comprising providing an elevator car, a counterweight, car guide rails and counterweight guide rails, providing an elevator hoisting machine and a suspension roping for suspending the car and the counterweight during construction time use of the elevator, mounting a protection deck within a hoistway in the building for a bottom section installation of the hoistway, providing a hoist device, the hoist device preferably comprises a man riding hoist attachable to the car or to an installation platform, and a hoist rope attachable to the car or to the installation platform and movable with the hoist device, guiding a working platform on car guide rails and the counterweight on counterweight guide rails installed at the bottom of the hoistway, attaching to the working platform the hoist device and the hoist rope, providing a hoisting point to support the working platform via the hoist device and the hoist rope, wherein the method comprises mounting the hoisting point to the protection deck for the bottom section elevator installation and installing elevator components in the bottom section using the working platform as an installation platform, moving the hoisting point to a ceiling of the hoistway for a top section elevator installation above the bottom section and installing elevator components in the top section using the working platform as the installation platform after the protection deck is removed from the hoistway, arranging the elevator hoisting machine and the suspension roping to suspend the car and the counterweight, removing the hoisting point and the hoist device from the hoistway, and moving the car by the elevator hoisting machine during construction time use of the elevator for transporting people and/or goods.

In a preferred embodiment, the method comprises hoisting construction material below the protection deck by a material hoist comprised by the protection deck.

In a preferred embodiment, the method comprises hoisting car guide rails and counterweight guide rails and other heavy elevator components by the material hoist.

In a preferred embodiment, the method comprises suspending an overspeed governor by the protection deck during the bottom section installation and by a structure of the building such as the ceiling or a machine room during the top section installation.

In a preferred embodiment, the method comprises installing guide rails through the protection deck, particularly through a cover comprised by the protection deck.

In a preferred embodiment, the method comprises starting the elevator installation in the bottom section when the building has reached 1/4 - 3/4, preferably 1/2 - 3/4, most preferably approximately 2/3 of the final height.

In a preferred embodiment, the method comprises starting the elevator installation in the top section after the building is in full height.

In a preferred embodiment, the method comprises starting the elevator installation in the top section when the ceiling is closed.

In a preferred embodiment, the method comprises scheduling the installation so that when the building has reached the final height and a ceiling is closed, the bottom section of the elevator hoistway is ready.

In a preferred embodiment, the method comprises, in case of a machine-room-less elevator, supporting the elevator hoisting machine at a top of the hoistway by the car guide rail and rope suspenders for fixing ends of the suspension roping by the guide rails.

In a preferred embodiment, the method comprises, in case of a machine room elevator, installing the elevator hoisting machine and rope suspenders for fixing an end of the suspension roping in a machine room.

In a preferred embodiment, the method comprises moving the overspeed governor, in case of a machine-room-less elevator, from the ceiling to the car guide rail opposite the car guide rail supporting the elevator hoisting machine.

In a preferred embodiment, the method comprises using the car or at least parts of the car as the working platform to be guided on the car guide rails.

In a preferred embodiment, the method comprises using the installation platform as the working platform.

The method and the arrangement described are preferred for building heights of 8 - 16 floors. In such a sectional or staged installation method and arrangement, the elevator is installed in stages for construction time use CTU. The installation can start when the building has reached an agreed height of about 2/3 of the final height of the building. Then, a CTU elevator can be installed in the bottom section and simultaneously the raising of the building can continue above the operating CTU elevator.

The described method and arrangement enable the elevator installation when the building is raising up, already before a hoistway ceiling is closed and corresponding lifting points for elevator installation are in place in the ceiling.

With the described method and arrangement, about 2/3 of the elevator installation can be already completed at the point when the roof is closed. This means that the elevator is ready for construction time use much earlier.

Thus, major part of the elevator installation can be completed while the building is still under construction. The elevator is earlier available for the construction time use.

During the construction of the building, site logistics can be improved for the transport of people and goods and based on better site logistics shorter construction time can be achieved. This means that finalized elevators can be handed over to the customer earlier.

When the building is raising, the protection deck can be installed which provides lifting points for a man riding hoist and an overspeed governor.

The use of this protection deck also protects the installers inside the hoistway. The use of the protection deck also provides an installation base at the bottom area of the top section.

When the building reaches 1/4 - 3/4, preferably 1/2 - 3/4, most preferably approximately 2/3, of the total height of the building, the protection deck can be installed, and the elevator installation can start immediately. The elevator installation time after the building is in full height can be reduced. Once the building reaches its final height, only 1/4 - 3/4, preferably 1/2 - 3/4, most preferably approximately 2/3, of the installation is left before the elevator is operating at normal speed and can be handed over to the customer. The finalized elevator can be delivered to the customer earlier.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will in the following be described in greater detail by means of preferred embodiments with reference to the attached drawings, in which:

Figure 1 shows an elevator construction arrangement during construction of a building using a working platform such as an elevator car as an installation platform,

Figure 2 shows schematically a side view of a protection deck supporting the working platform such as the elevator car and mounted in a hoistway in the building,

Figure 3 shows an installation of a diverting pulley for supporting a hoist device, using a hoisting point on the protection deck,

Figure 4 shows the arrangement for installing the elevator when the elevator car is moved in construction time use using the hoist device installed at the lower part of the building,

Figure 5 shows the arrangement for installing the elevator after jump when a hoisting point for the hoist device is moved to a roof of the hoistway,

Figure 6 shows a machine-room-less elevator ready for construction time use for the full height of the building,

Figure 7 shows an installation of an overspeed governor using a lifting point on the protection deck,

Figure 8 shows mechanical components of a machine-room-less elevator installed at top of the hoistway,

Figure 9 shows preferred details of a passage of a suspension roping for the elevator car and a counterweight,

Figure 10 shows an elevator with a machine room ready for construction time use for the full height of the building,

Figure 11 shows a side view of a protection deck installed diagonally within the hoistway, and

Figure 12 shows an embodiment of a protection deck provided with a material hoist for directly supporting material without a supporting beam for a material hoist rope.

DETAILED DESCRIPTION

Figure 1 shows an elevator construction arrangement during construction of a building 100 at an initial stage when the building has reached about 2/3 of the final height. Preferably the installation of the elevator in Figure 1 starts when the building core has reached about 2/3 of the final height.

A weather deck 101 and a temporary working deck 102 may be installed in an elevator hoistway 1 preferably by the builder. The weather deck 101 may be an inclined waterproof deck which seals the hoistway 1 to keep it clean and dry.

The elevator installers may install a protection deck 2, 2’ from the working deck 102.

Figures 2, 11 and 12 show embodiments of protection decks 2, 2’ that may be mounted within the hoistway 1 for protecting the portion of the hoistway 1 below the protection deck from any possible falling objects.

The protection deck 2’ shown in Figure 11 differs from the horizontally aligned protection deck 2 in that it can be installed diagonally within the hoistway 1. Thus, the protection deck 2’ may be used as a top protection deck which can provide at least some of the functions of the weather deck 101. The protection deck 2’ shown in Figure 11 may be mounted inclined within the hoistway 1 for protecting the portion of the hoistway 1 below the protection deck 2’ from falling objects and fluids during installation. The protection deck 2’ can redirect or deflect falling material to minimize the impact of the falling object. The protection deck 2’ comprises engagement members 4.1 and 4.2 to be engaged with opposite sides of the hoistway. In mounted state of the protection deck 2’ in the hoistway 1 the first engagement member 4.1 may rest on a sill of a landing 20 and the second engagement member 4.2 may engage with the opposite wall.

The protection deck 2, 2’ comprises a frame 4 mounted on walls laid of the hoistway 1. The protection deck 2, 2’ comprises a cover 3 cooperating with the frame and extending substantially across the hoistway 1. The cover 3 is adapted to protect the hoistway 1 from falling objects and/or water from falling into the hoistway below it. The frame 4 is, without dismantling it, configured to be increased and/or decreased in size, individually in at least one direction in relation to the corresponding adjacent wall 1a, 1 b, 1c, 1d of the hoistway 1. The frame 4 is constructed of preferably telescopic beams 43 fixed to the wall with dedicated wall fixings which can locate on every wall, but the corners are preferred to reduce amount of anchor bolts 41 . Preferably the anchor bolts 41 extend into holes of the wall of the hoistway 1 , which hoistway wall preferably comprises concrete. A preferred installation of the frame 4 comprises: drilling anchoring interfaces 42 (wall fixing members) to hoistway corners and/or walls; installing frame fixing elements 4’ comprised by the frame 4 to the anchoring interfaces 42.

The arrangement comprises a first hoisting apparatus 6 also called a hoist device 6. The first hoisting apparatus 6 serves for hoisting an elevator car 10 or an installation platform 80, in Figures 1-4 supported by the protection deck 2, 2’, and in Figure 5 supported by a ceiling 1 ’ of the hoistway 1 .

The first hoisting apparatus 6 may comprise a first hoisting machine 6a also called a man riding hoist 6a and a first flexible tension member 6b also called a hoist rope 6b movable with the first hoisting machine 6a.

The arrangement comprises a hoisting point configured to support the car 10 or the installation platform 80 via the first hoisting machine 6a and the first flexible tension member 6b.

In Figures 2 and 3, a first embodiment of the hoisting point comprising a first diverting wheel 6c is rotatably mounted on the protection deck for supporting the hoist rope 6b.

Figure 3 shows a preferred second embodiment of the hoisting point for supporting the hoist rope 6b comprising a connecting member 61 supported by the frame 4 of the protection deck 2, 2’. A rotatable diverting pulley 62 is supported by a hook 63 or a corresponding gripping member. The hook 63 can be connected to the connecting member 61 as shown by arrow A. The connecting member 61 may be equipped with an eye/opening or a corresponding similar means of attachment for the hook 63 or said corresponding gripping member. Naturally the connection of the diverting pulley 62 and the protection deck may also be formed vice versa, the connecting member may comprise a hook-like gripping member and the attachment means supporting the diverting pulley may respectively comprise an eye or opening. The diverting pulley 62 serves for guiding and supporting the hoist rope 6b.

According to an embodiment the protection deck 2, 2’ comprises a second hoisting apparatus 5 also called a material hoist 5 for hoisting construction material below the protection deck. The material hoist 5 is supported by the protection deck 2, 2’. The material hoist 5 comprises a second hoisting machine 5a also called a material hoisting machine 5a mounted on the protection deck 2, 2’, preferably in particular on the frame 4 thereof, and a second flexible tension member 5b also called a material hoist rope 5b movable with the material hoisting machine 5a. The material hoist rope 5b hangs suspended by the material hoisting machine 5a, and the material hoist rope 5b is provided with a connector 5b1 at a lower end thereof, such as a hook for example, connected or connectable with a construction material 8, 9 to be hoisted. In the arrangement of Figure 2, the connector 5b1 is connected to a construction material 8, 9 to be hoisted, which construction material 8, 9 is a guide rail section.

According to an embodiment the protection deck 2, 2’ comprises a supporting beam 7 connected pivotally to the frame 4, and a second diverting wheel 71 mounted on said supporting beam 7. The material hoist rope 5b is guided to pass from the material hoisting machine 5a to the second diverting wheel 71 , over it and from the second diverting wheel 71 downwards in the hoistway 1 . The supporting beam 7 is more specifically connected to the frame 4 preferably pivotally around a vertical axis x as well as around a horizontal axis relative to the frame 4. Preferably the location of the second diverting wheel 71 relative to the frame is adjustable by pivoting the supporting beam 7 around said vertical axis and/or said horizontal axis. The protection deck 2, 2’ may comprise a third diverting wheel 72 for guiding the material hoist rope 5b to pass from the material hoisting machine 5a to the second diverting wheel 71.

Figure 12 shows another embodiment of the protection deck provided with the material hoist 5 for directly supporting material without a supporting beam 7 for the material hoist rope 5b. The material hoist rope 5b may hang directly from the material hoist 5a mounted on a horizontally aligned or an inclined protection deck.

The protection deck 2, 2’ with auxiliary equipment may be used as movable installation tool for hoisting of large loads such as: a movable machine room of an elevator located below the protection deck 2, 2’ or, as shown in Figure 1 , 2 and 4, an elevator car 10 or an installation platform 80 below the protection deck 2 and construction material 8, 9.

The two embodiments of the hoisting point shown in Figures 2 and 3 enable mounting of the first hoisting machine 6a separate from the protection deck 2, 2’. The first hoisting machine 6a may be mounted on the elevator car 10 or the installation platform 80 and the first flexible tension member 6b passes around the diverting pulley 62 connected to the hoisting point 61.

The material hoist 5 may be used to hoist car guide rails and counterweight guide rails and other heavy elevator components during the installation of the elevator.

Once the protection deck 2, 2’ is installed and the hoistway 1 is sealed, the elevator installation can start for the bottom section of the hoistway 1 below the protection deck 2, 2’.

In short, in the bottom section of the hoistway 1 , which may cover about 2/3 of the final height of the hoistway, car guide rails 8, counterweight guide rails 9, a counterweight buffer assembly 11 , a car buffer assembly 12, a counterweight (CWT) 13 and a working platform 10, 80 are installed in a pit 14. The working platform 10, 80 0 is thereafter used as the installation platform. The working platform 10, 80 is moved with the help of the man riding hoist 6a, utilizing the hoisting point 6c, 61 of the protection deck 2, 2’. The landing doors 15 and other elevator hoistway components are installed in the elevator hoistway 1 . While the elevator is installed at the lower part of the building 100, the building construction continues normally above it as shown in Figure 4.

According to an embodiment by the car 10 is meant at least parts of the car, such as a car sling, which may be guided on the car guide rails 8. According to an embodiment the working platform comprises the car with the car sling which is complemented by a platform such as a working deck for the installer. According to an embodiment the working platform comprises the car with the sling but does not have walls and a roof. According to an embodiment the car is equipped also with walls and a roof. According to an embodiment the car is a final car. According to an embodiment, the working platform comprises the car 10 or at least parts of the car to be guided on the car guide rails. According to an embodiment, the working platform comprises the installation platform 80. According to an embodiment, the bottom section may be extended by moving the protection deck 2,2’ upwards in the hoistway 1 , for example some landings 20 upwards, and continuing the bottom section installation using the car 10 or the installation platform 80 supported by the protection deck as the installation platform.

Preferably the installation is scheduled so that when the building has reached the final height and a roof T or ceiling is closed, the bottom section of the elevator hoistway 1 is ready. Thereafter, the weather deck 101 (if installed) and the protection deck 2, 2’ are removed from the hoistway. As a preparation for an elevator jump, the hoist device such as the man riding hoist 6a hoisting point 61 is moved to the ceiling T of the hoistway 1 as shown in Figure 5. The elevator installation continues in the top section using the car 10 the installation platform as explained in more detail below. As the top section of the hoistway 1 may only be about 1/3 of the total building height, the installation is completed quickly. Finally, the elevator hoisting machine 30 and suspension ropes 31 are installed, and the electrification is finalized. Thus, the elevator is ready for construction time use for the full height of the building 100 as shown in Figures 6 or 10.

In more detail, once the protection deck 2, 2’ is properly in place, an overspeed governor 16 (OSG) and the man riding hoist 6a are installed to the protection deck 2, 2’, preferably working from the working deck 102. The overspeed governor 16 comprising an OSG upper pulley 17 is installed preferably to the protection deck 2, 2’ via a lifting point 18 attached to the protection deck 2, 2’ as shown by arrow B in Figure 7. An OSG rope 19 is passed over the OSG upper pulley 17. The man riding hoist 6a with the hoist rope 6b is installed to the hoisting point 61 in the protection deck 2, 2’ (Figure 3). Preferably the OSG rope 19 ends and the hoist rope 6b ends are temporarily routed to a landing 20 of the building 100.

The material hoist 5 may be installed on top of the protection deck 2, 2’. The working deck 102 may be removed and the OSG rope 19 ends and the hoist rope 6b ends may be lowered to the pit 14. Guide rails 8, 9 are placed into the pit. Guide rails may be lifted using the material hoist 5.

A first round of guide rails 8, 9 is installed and aligned in the pit area by suitable plumbing apparatus, preferably guide rail plumbing tools are installed on the protection deck 2, 2’. The CWT and car buffers 11 , 12 are installed in the pit. An OSG lower pulley 17’ with an OSG tension weight are installed. The CWT 13 with a frame 13’ filled partly, preferably 40%, with CWT fillers 21 and equipped with at least one CWT pulley 13” is installed to be guided by the CWT guide rails 9.

According to an embodiment the car 10 is installed inside the hoistway 1 to be guided by the car guide rails 8. The car 10 may be equipped with a car sling having a top beam and a bottom beam. The OSG rope 19 is fixed to the car by OSG rope terminals 19’ and guided around the upper and lower OSG pulleys. A balustrade 10’ is installed on the car. A safety gear is connected to the car sling and the OSG rope 19. An automatic safety gear trigger (ASGT) is attached to the car 10. The ASGT engages the safety gear automatically in the event of hoist rope failure or manually when it is necessary to secure the car. The man riding hoist 6a is attached to the car 10.

Moving the car 10 with the man riding hoist 6a and using the car 10 as the installation platform, the car and counterweight guide rails are installed and aligned preferably up to the protection deck according to plumb lines formed by for example plumb wires attached to the protection deck or using laser tools for plumbing. Preferably the car 10 is used for lifting guide rails. Guide rails may be lifted using the material hoist 5. Guide rails may be fitted using a guide rail lifting clamp to lift each rail. The guide rails may be installed through the protection deck to allow a later dismantling of the protection deck from the car 10 roof. Suitable openings for the guide rails may be cut to the protection deck cover 3.

Using the car 10 as the installation platform, the landing doors 15 may be installed, preferably from third floor upwards, up to topmost floor of the bottom section, and preferably simultaneously the door-to-door electrification (if any) is installed. The bottom landing door may be installed. An elevator hoistway and pit electrification may be installed below the protection deck. Also landing call stations to each floor 20 of the bottom section may be installed.

The car 10 may be parked to the topmost landing of the bottom section and secured in place as shown in Figure 4, by activating the safety gear and using a parking chain.

According to an embodiment the bottom section may be extended by moving the protection deck 2, 2’ higher in the hoistway 1 , for example some landings 20 upwards, thus presenting a situation between Figures 4 and 5. Thus, at least one elevator jump above the initial bottom section during installation may be performed before supporting the car 10 or the installation platform 80 from the ceiling T of the hoistway 1. In connection with the jump, the overspeed governor 16, the material hoist 5 and the hoisting point 61 may remain supported by the protection deck 2, 2’, and the OSG rope 19 may be extended or replaced. Moving the car 10 with the man riding hoist 6a and using the car 10 as the installation platform, the guide rails and further elevator equipment may be installed in the area below the protection deck in the upper part of the extended bottom section as described above for the initial bottom section.

For preparing the installing of the top section of the elevator hoistway and the elevator jump to the top section, the weather deck 101 may be removed (if installed) and a removal of the protection deck is prepared. The material hoist 5 and the cover 3 may be removed from the protection deck 2, 2’.

Working from the car 10 roof, next the overspeed governor 16 and man riding hoist 6a are moved. The overspeed governor rope 19 is removed from the OSG lower pulley 17’ and the tension weight, pulled to the car roof, and taken out of the hoistway 1. The OSG 16 is removed from the protection deck 2, 2’. The hoist rope 6b is driven out of the hoist and taken out of the hoistway. The diverting pulley 62 may be removed from the protection deck 2, 2’. Preparations are then made to support the car 10 or the installation platform 80 from the ceiling T of the hoistway 1 so that the car 10 or the installation platform 80 can serve as the installation platform for the top section of the hoistway after the elevator jump.

The diverting pulley 62 and the hoist rope 6b are installed to hang from the hoistway ceiling T for example via an eyebolt bolted to the ceiling.

The OSG 16 may be suspended by the structure of the building 100 during the top section installation. In case of a machine-room-less elevator the OSG 16 is installed to hang from the hoistway ceiling T via for example an eyebolt bolted to the ceiling. Alternatively, the OSG 16 may be installed to hang from a machine room 50 in case of an elevator with a machine room shown in Figure 10.

The hoist rope 6b and OSG rope 19 are lowered to the car roof. The hoist rope 6b is driven through the man riding hoist 6a and the man riding hoist is attached to the car, preferably to a car sling top beam. The OSG rope 19 is attached to the OSG rope terminals 19’ and guided around the OSG lower pulley 17’ with tension weight in the pit 14 while adjusting the length of the OSG rope 19. The automatic safety gear trigger (ASGT) is attached to the car.

After removing the auxiliary equipment from the protection deck 2, 2’, the protection deck can be removed from the hoistway preferably by dismantling telescopic beams 43 thereof, removing the anchoring interfaces 42 and cutting the anchor bolts 41 .

The plumbing of the hoistway top section is performed by installing plumb lines formed by for example plumb wires attached in a plumbing jig to a topmost landing in case of the machine-room-less elevator or using laser tools for plumbing. The plumb lines are aligned according to the guide rails in the bottom section. In case of the machine room elevator a plumbing template may be set on the machine room 50 floor. In the following installation of the top section, the car 10 is used as the installation platform, as described above for the installation of the bottom section.

In case of the machine-room-less elevator the rest of the mechanical components is installed at top of the hoistway 1 as shown in Figures 6 and 8, such as the guide rails 8, 9, the elevator hoisting machine 30 to be supported by the car guide rail 8 and the rope suspenders 32 to be supported by the guide rails. On each of the rope suspenders 32, an end of a suspension roping 31 can be fixed. The overspeed governor 16 is moved from the ceiling T to the car guide rail 8 opposite the car guide rail supporting the elevator hoisting machine 30 and the OSG rope 19 tightness is adjusted. The electrification with associated sensors and positioning members, traveling cable, lightning, top section landing doors 15, a car door with sill and the landing door to the second landing are installed.

The suspension roping 31 is arranged to suspend the car 10 and the counterweight 13. The suspension ropes 31 are preferably wound on cable drums (not shown in Figures) so that suitable length of the suspension ropes 31 may be unwound from each cable drum during the installation of the construction elevator.

In case of the machine-room-less elevator the weight of the elevator hoisting machine 30, as well as the load exerted by the suspension roping 31 passing around a drive wheel of the elevator hoisting machine 30, is carried by the guide rail section 8, 9 which is formed of guide rails, and transmittable by the guide rail section to the guide rail sections below it at least partly so that the complete weight of the of the elevator hoisting machine 30, as well as the load exerted by the suspension roping 31 passing around said drive wheel. The load exerted by the suspension roping 31 passing around said drive wheel is formed partially by weight of the suspension roping 31 and partially by the elevator units, such as the car 10 and the counterweight 13 suspended by the suspension roping 31.

Figure 9 shows preferred details of a passage of a suspension roping for the elevator car and a counterweight in case of the machine-room- less elevator. The suspension ropes 31 pass from the first rope suspender 32 downwards to a first car pulley 33 and further horizontally to a second car pulley 33. The car pulleys 33 may be positioned at the outer ends of a skewed pulley beam 34 extending across a sling bottom beam of the car 10. The skewed pulley beam may extend in the horizontal direction. The car 10 may thus be supported on the skewed pulley beam 34 and thereby on the suspension ropes 31 passing over the car pulleys 33. The suspension ropes 31 pass after the second car pulley 33 upwards to a drive wheel 30’ of the elevator hoisting machine 30 and further downwards to the at least one CWT pulley 13”. The suspension ropes 31 pass after the at least one CWT pulley 13” finally upwards to the second rope suspender 32. The counterweight 13 is hanging from the at least one counterweight pulley 13”.

The car 10 may be parked to the headroom, the car roof being on the level between the highest landing and the ceiling, and the safety gear and the parking chain may be activated. The rest of the CWT fillers 21 may be installed in the CWT frame 13’. Then the man riding hoist 6a may be detached from the car 10.

After final mechanics and electronics installation and safety inspection, the elevator is ready for commissioning. The elevator runs in construction time use for whole travel until the final handover. The car 10 may transport people and/or goods between the landings 20 in the building 100.

Figure 10 shows preferred details of a passage of a suspension roping in case of an elevator with a machine room 50. The elevator is ready for construction time use for the full height of the building 100. In case of the machine room elevator the rest of the mechanical components may be installed in the machine room 50, such as the elevator hoisting machine 51 and the rope suspenders 32. On each of the rope suspenders 32, an end of a suspension roping 31 can be fixed. The suspension ropes 31 pass from the first rope suspender 32 downwards to at least one car pulley 33. The at least one car pulley 33 may be positioned on top of the car or at the outer ends of a pulley beam 34 which may be skewed extending across the sling bottom beam or across the sling top beam of the car 10. The skewed pulley beam may extend in the horizontal direction. The suspension ropes 31 pass after the at least one car pulley 33 upwards to wheels of the elevator hoisting machine 51 and further downwards to the at least one CWT pulley 13”. The suspension ropes 31 pass after the at least one CWT pulley 13” finally upwards to the second rope suspender 32. The counterweight 13 is hanging from the at least one counterweight pulley 13”.

According to a preferred embodiment, the overspeed governor OSG 16 used during the installation and/or construction time may be replaced with a final OSG.

According to a preferred embodiment, the at least one counterweight pulley 13” used during the installation and/or construction time may be replaced with at least one final counterweight pulley.

According to a preferred embodiment, the car pulley beam 34 used during the installation and/or construction time may be replaced with a final car pulley beam.

It will be obvious to a person skilled in the art that, as the technology advances, the inventive concept can be implemented in various ways. The invention and its embodiments are not limited to the examples described above but may vary within the scope of the claims.

Claims

1 . An elevator construction arrangement comprises a hoistway (1 ) in a building (100), an elevator car (10), a counterweight (13), car guide rails (8) for guiding the car and counterweight guide rails (9) for guiding the counterweight, an elevator hoisting machine (30, 51) and a suspension roping (31 ) arranged to suspend the car and the counterweight during construction time use of the elevator, a protection deck (2, 2’) mounted within the hoistway (1 ) during an elevator installation in a bottom section of the hoistway, a hoist device (6) for hoisting a working platform (10, 80), the hoist device preferably comprises a man riding hoist (6a) attachable to the car (10) or to an installation platform (80), and a hoist rope (6b) attachable to the car (10) or to the installation platform (80) and movable with the hoist device, a hoisting point (6c, 61 ) configured to support the working platform (10, 80) via the hoist device (6a) and the hoist rope (6b), wherein during the elevator installation in the bottom section of the hoistway (1 ) the hoisting point is configured to be mounted to the protection deck (2, 2’) and the working platform (10, 80) guided on the car guide rails (8) is configured to be used as an installation platform in the bottom section, during the elevator installation in a top section of the hoistway above the bottom section, the hoisting point is configured to be moved to a ceiling (1’) of the hoistway (1 ) and the working platform (10, 80) is configured to be used as the installation platform in the top section after the protection deck (2, 2’) is removed from the hoistway, and during construction time use of the elevator, the car (10) is configured to be moved by the elevator hoisting machine (30, 51 ) suspending the car (10) and the counterweight (13) together with the suspension roping (31 ), for transporting people and/or goods, while the hoisting point and the hoist device (6) are removed from the hoistway.

2. The arrangement according to claim 1 , wherein the protection deck (2, 2’) comprises a material hoist (5) configured to hoist construction material below the protection deck.

3. The arrangement according to claim 2, wherein the material hoist (5) is configured to hoist car guide rails (8) and counterweight guide rails (9) and other heavy elevator components.

4. The arrangement according to any of claims 1 to 3, wherein the working platform (10, 80) is configured to lift guide rails (8, 9) and other heavy elevator components.

5. The arrangement according to any of claims 1 to 4, wherein the arrangement comprises an overspeed governor (16) to be suspended by the protection deck (2, 2’) during the bottom section installation and by a structure of the building (100) such as the ceiling (T) or a machine room (50) during the top section installation.

6. The arrangement according to any of claims 1 to 5, wherein guide rails (8, 9) are configured to be installed through the protection deck (2, 2’), particularly through a cover (3) comprised by the protection deck.

7. The arrangement according to any of claims 1 to 6, wherein the elevator installation in the bottom section of the hoistway (1 ) is started when the building (100) has reached 1/4 - 3/4, preferably 1/2 - 3/4, most preferably approximately 2/3, of the final height, preferably the protection deck (2, 2’) is mounted within the hoistway approximately at a height of 1/4 - 3/4, preferably 1/2 - 3/4, most preferably approximately 2/3, of the final height of the building.

8. The arrangement according to any of claims 1 to 7, wherein the elevator installation in the top section is started after the building (100) is in full height.

9. The arrangement according to any of claims 1 to 7, wherein the elevator installation in the top section is started after the ceiling (T) is closed.

10. The arrangement according to any of claims 1 to 9, wherein in case of a machine-room-less elevator, the elevator hoisting machine (30) installed at a top of the hoistway (1 ) is supported by a car guide rail (8), and rope suspenders (32) for fixing ends of the suspension roping (31 ) are supported by the guide rails (8, 9).

11 . The arrangement according to any of claims 1 to 9, wherein in case of a machine room elevator the elevator hoisting machine (51 ) and rope suspenders (32) for fixing an end of the suspension roping (31 ) are installed in a machine room (50).

12. The arrangement according to any of claims 1 to 11 , wherein the hoisting point (61 ) comprises a connecting member equipped with an eye/opening or a corresponding means of attachment for a hook (63) or a corresponding gripping member supporting a diverting pulley (62) to rotatably guide and support the hoist rope (6b).

13. The arrangement according to claims 5 and 10, wherein in case of the machine-room-less elevator, the overspeed governor (16) is moved from the ceiling (T) to the car guide rail (8) opposite the car guide rail supporting the elevator hoisting machine (30).

14. The arrangement according to any of claims 1 to 13, wherein the working platform comprises the car (10) or at least parts of the car to be guided on the car guide rails.

15. The arrangement according to any of claims 1 to 13, wherein the working platform comprises the installation platform (80).

16. A method for installing an elevator during construction of a building (100) comprising providing an elevator car (10), a counterweight (13), car guide rails (8) and counterweight guide rails (9), providing an elevator hoisting machine (30, 51 ) and a suspension roping (31 ) for suspending the car and the counterweight during construction time use of the elevator, mounting a protection deck (2, 2’) within a hoistway (1 ) in the building (100) for a bottom section installation of the hoistway, providing a hoist device (6), the hoist device preferably comprises a man riding hoist (6a) attachable to the car (10) or to an installation platform (80), and a hoist rope (6b) attachable to the car (10) or to the installation platform (80) and movable with the hoist device, guiding a working platform (10, 80) on car guide rails (8) and the counterweight (13) on counterweight guide rails (9) installed at the bottom of the hoistway, attaching to the working platform (10, 80) the hoist device (6) and the hoist rope (6b), providing a hoisting point (6c, 61 ) to support the working platform (10, 80) via the hoist device (6a) and the hoist rope (6b), wherein the method comprises mounting the hoisting point (6c, 61 ) to the protection deck (2, 2’) for the bottom section elevator installation and installing elevator components in the bottom section using the working platform (10, 80) as an installation platform, moving the hoisting point (6c, 61 ) to a ceiling (T) of the hoistway (1 ) for a top section elevator installation above the bottom section and installing elevator components in the top section using the working platform (10, 80) as the installation platform after the protection deck (2, 2’) is removed from the hoistway, arranging the elevator hoisting machine (30, 51 ) and the suspension roping (31) to suspend the car (10) and the counterweight (13), removing the hoisting point and the hoist device (6) from the hoistway (1 ), and moving the car (10) by the elevator hoisting machine (30, 51 ) during construction time use of the elevator for transporting people and/or goods.

17. The method according to claim 16, comprising hoisting construction material below the protection deck (2, 2’) by a material hoist (5) comprised by the protection deck (2, 2’).

18. The method according to claim 17, comprising hoisting car guide rails (8) and counterweight guide rails (9) and other heavy elevator components by the material hoist (5).

19. The method according to any of claims 16 to 18, comprising suspending an overspeed governor (16) by the protection deck (2, 2’) during the bottom section installation and by a structure of the building (100) such as the ceiling (T) or a machine room (50) during the top section installation.

20. The method according to any of claims 16 to 19, comprising installing guide rails (8, 9) through the protection deck (2, 2’), particularly through a cover (3) comprised by the protection deck.

21. The method according to any of claims 16 to 20, comprising starting the elevator installation in the bottom section when the building (100) has reached 1/4 - 3/4, preferably 1/2 - 3/4, most preferably approximately 2/3 of the final height.

22. The method according to any of claims 16 to 21 , comprising starting the elevator installation in the top section after the building (100) is in full height.

23. The method according to any of claims 16 to 21 , comprising starting the elevator installation in the top section when the ceiling (T) is closed.

24. The method according to any of claims 16 to 23, comprising scheduling the installation so that when the building (100) has reached the final height and a ceiling (T) is closed, the bottom section of the elevator hoistway (1) is ready.

25. The method according to any of claims 16 to 24, comprising, in case of a machine-room-less elevator, supporting the elevator hoisting machine (30) at a top of the hoistway (1 ) by the car guide rail (8) and rope suspenders (32) for fixing ends of the suspension roping (31 ) by the guide rails (8, 9).

26. The method according to any of claims 16 to 24, comprising, in case of a machine room elevator, installing the elevator hoisting machine (51 ) and rope suspenders (32) for fixing an end of the suspension roping (31 ) in a machine room (50).

27. The method according to any of claims 16 to 26, wherein the hoisting point (61 ) comprises a connecting member equipped with an eye/opening or a corresponding means of attachment for a hook (63) or a corresponding gripping member supporting a diverting pulley (62) to rotatably guide and support the hoist rope (6b).

28. The method according to claims 19 and 25, comprising moving the overspeed governor (16), in case of a machine-room-less elevator, from the ceiling (T) to the car guide rail (8) opposite the car guide rail supporting the elevator hoisting machine (30).

29. The method according to any of claims 16 to 28, comprising using the car (10) or at least parts of the car as the working platform to be guided on the car guide rails.

30. The method according to any of claims 16 to 28, comprising using the installation platform (80) as the working platform.