EP4709674A1 - Elevator construction arrangement and method - Google Patents

Abstract

An elevator construction arrangement comprises a hoistway (1); 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 machinery (30) and a suspension roping (31) arranged to suspend the car (10) and the counterweight (13) during construction time use; a protection deck (2) mounted within the hoistway (1) during an elevator installation in the hoistway; a hoist device (6) configured to move the car (10) or at least parts of the car below the protection deck (2), the car being guided on the car guide rails (8); wherein the arrangement comprises at least one guide rail (8; 9) with mounting perforations such as mounting holes made at the construction site for the machinery (30) and/or for at least one rope suspender (32, 32') in connection with an elevator jump. A method for installing an elevator during construction of a building (100).

Description

ELEVATOR CONSTRUCTION ARRANGEMENT AND 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 elevator hoistway. Guide rails and 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.

In connection with so-called jump-lifts, the bottom portion of the hoistway is taken into use before the construction of the building has been completed. In this case the upper parts of the building as well as the top portion of the hoistway can be constructed at the same time as an elevator car moving in the bottom portion of the hoistway already serves people on the lower floors of the building under construction.

The car moving in the lower portion of the hoistway may be supported and moved during construction-time use with a hoisting machinery supported on a guide rail mounted to a wall of the hoistway.

The car may hang from the hoisting machinery suspended by a hoisting roping during its use for transporting passengers and/or goods below a protection deck mounted within the hoistway.

Construction work in the hoistway above the protection deck may be performed by working on an installation platform suspended from above and movable above the protection deck.

When the elevator hoistway under construction above the mounted hoisting machinery has reached a sufficient stage of completion, the completed portion of the hoistway can be taken into use. At this stage a jump is performed, wherein the hoisting machinery is hoisted higher in the hoistway. Thereafter, the car can reach a higher position than before the jump and start to serve additional floors.

In prior art, before hoisting the hoisting machinery to the next jump position, guide rails with specially designed mounting holes for the hoisting machinery and rope suspender attachments are provided and delivered to the construction site. For each jump, such prefabricated guide rails must be provided with mounting holes made at accurate height positions so that safety spaces, passing distances, serviceability, etc. are also achieved during construction time operation.

This requires additional work including pre-planning at the site, a separate order, and a separate delivery to the site. Before ordering the specially perforated guide rails, the front-line engineer has to verify whether the preplanned landing spacing of the final elevator, the safety spaces, and the locations of the guide rail extensions and fixing brackets are correct, all of which will affect whether or not it will be possible to jump to the originally agreed floor.

The volume of additional design material to be managed alone can cause confusion, not to mention separate deliveries to the site.

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, an elevator car, a counterweight, car guide rails for guiding the car, and counterweight guide rails for guiding the counterweight, an elevator hoisting machinery and a suspension roping arranged to suspend the car and the counterweight during construction time use, a protection deck mounted within the hoistway during an elevator installation in the hoistway, a hoist device configured to move the car or at least parts of the car below the protection deck, the car being guided on the car guide rails, wherein the arrangement comprises at least one guide rail with mounting perforations such as mounting holes made at the construction site for the machinery and/or for at least one rope suspender in connection with an elevator jump.

According to an embodiment, the hoistway is provided with at least one car guide rail comprising lower machinery support mounting perforations and/or upper machinery support mounting perforations for the machinery; and/or rope suspender bracket mounting perforations for the at least one rope suspender.

According to an embodiment, the hoistway is provided with a counterweight guide rail comprising rope suspender bracket mounting perforations for the at least one rope suspender.

According to an embodiment, the jump comprises a hoisting operation of the machinery into a headroom in the hoistway as the elevator travel is extended; and/or the jump comprises a hoisting operation of the rope suspenders into a headroom in the hoistway as the elevator travel is extended.

According to an embodiment, the hoist device, supported by the protection deck, comprises a man riding hoist attachable to the car, and a hoist rope attachable to the car and movable with the hoist device during elevator installation.

According to an embodiment, the guide rails are provided at the installation site with mounting holes for headroom attachments made at height positions so that safety spaces, passing distances, and serviceability are achieved during construction time operation.

According to an embodiment, the headroom attachments are selected from a group comprising machinery supports; rope suspender brackets; guide rail brackets; overspeed governor brackets.

According to an embodiment, the mounting perforations have been provided to a guide rail which is mounted to the wall of the hoistway.

According to an embodiment, the mounting perforations have been provided to a guide rail before mounting said guide rail to the wall of the hoistway.

According to an embodiment, the mounting perforations have been provided at the installation site outside the hoistway, preferably at a landing.

According to an embodiment, a position measurement of the machinery and/or the rope suspenders for performing mounting perforations is measurable from a roof of the car, preferably as the car has been moved on a predefined level in the hoistway, more preferably on the level of a wished landing or as a sill of the car is positioned at the same level as a sill of the landing.

According to an embodiment, the arrangement comprises on the guide rail a visible marking of said position measurement.

According to an embodiment, the arrangement comprises a guide means such as a guiding jig usable to determine the straightness and/or exact location of the mounting perforations, the guiding jig preferably comprising a guide insert.

According to an embodiment, the arrangement comprises a drilling tool attachable to the guide rail and comprising a cutter inserted in a chuck to provide the mounting perforation as aligned with a marked position of the perforation.

According to an embodiment, the elevator car is intended for the use of passengers during construction.

According to an embodiment, the protection deck comprises a material hoist configured to hoist construction material below the protection deck.

According to an embodiment, the material hoist is configured to hoist car guide rails and counterweight guide rails and other heavy elevator components.

According to an embodiment, the car is configured to hoist guide rails and other heavy elevator components.

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 for guiding the car, and counterweight guide rails for guiding the counterweight, providing an elevator hoisting machinery and a suspension roping for suspending the elevator car and the counterweight during elevator construction time use, mounting a protection deck within a hoistway in the building, providing a hoist device for moving the car or at least parts of the car below the protection deck, the car guided on car guide rails installed in the hoistway, wherein the method comprises, in connection with an elevator jump, perforating at the construction site at least one guide rail with mounting perforations such as mounting holes for the machinery and/or for at least one rope suspender.

According to an embodiment, the method comprises measuring from a roof of the car position of the machinery and/or the rope suspenders for performing mounting perforations for the machinery and/or for the at least one rope suspender. According to an embodiment, the method comprises marking on the guide rail a visible marking of said position measurement.

According to an embodiment, the method comprises using a guide means such as a guiding jig to determine the straightness and/or exact location of the mounting perforations based on said position measurement.

According to an embodiment, the method locating a guiding jig at the measured and visibly marked position.

According to an embodiment, the method comprises attaching to the guide rail a drilling tool comprising a cutter inserted in a chuck, aligning the cutter with a marked position of the mounting perforation, and perforating the mounting perforation as aligned with the drilling tool.

According to an embodiment, the method comprises moving the car on a predefined level in the hoistway prior to measuring a position of the machinery and/or the rope suspenders.

According to an embodiment, the method comprises moving the car on the level of a wished landing or positioning a sill of the car at the same level as a sill of the landing prior to measuring a position of the machinery and/or the rope suspenders.

According to an embodiment, the method comprises perforating the mounting perforations to a guide rail which is mounted to the wall of the hoistway.

According to an embodiment, the method comprises perforating the mounting perforations to a guide rail before mounting said guide rail to the wall of the hoistway.

According to an embodiment, the method comprises perforating the mounting perforations to the guide rail at the installation site outside the hoistway, preferably at a landing.

According to an embodiment, the method comprises perforating at least one car guide rail with lower machinery support mounting perforations and/or upper machinery support mounting perforations for the machinery; and/or with rope suspender bracket mounting perforations for the at least one rope suspender.

According to an embodiment, the method comprises perforating a counterweight guide rail with rope suspender bracket mounting perforations for the at least one rope suspender. According to an embodiment, the method comprises in connection of the jump, hoisting the machinery into a headroom in the hoistway as the elevator travel is extended; and/or hoisting the rope suspenders into a headroom in the hoistway as the elevator travel is extended.

According to an embodiment, the method comprises moving the car by the hoist device supported by the protection deck.

According to an embodiment, the method comprises providing the guide rails at the installation site with mounting holes for headroom attachments made at height positions in the guide rails so that safety spaces, passing distances, and serviceability are achieved during construction time operation.

According to an embodiment, the headroom attachments are selected from a group comprising machinery supports; rope suspender brackets; guide rail brackets; overspeed governor brackets.

The invention almost completely eliminates the need to modify the jump landings agreed with the customer, as the machinery and rope suspender mounting hole perforations can be done on site on a case-by-case basis. The invention allows flexible modification of the jump plan according to the client's needs. Simple recyclable tools can be used. The need for additional materials can be substantially reduced, and the ordering process simplified. The drilling of the target can be done from the roof of the car, from the installation platform or from the protection deck. The invention provides a simple, quick, and safe solution on site, both in the shaft and on the landing with installation savings and reduced logistics. Based on better site logistics shorter construction time can be achieved. This means that finalized elevators can be handed over 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 a schematic view of an elevator in a hoistway,

Figure 2 shows an arrangement for installing an elevator during construction of a building using a working platform such as an elevator car as an installation platform in a bottom section of the hoistway,

Figure 3 shows a machine-room-less elevator in construction time use in the bottom section of the hoistway, Figure 4 shows a further section installation using an installation platform after extension of the elevator travel,

Figure 5 shows a further section installation using the elevator car as an installation platform during extension of the elevator travel, and

Figure 6 shows a temporary headroom installed below a protection deck, with an exemplary embodiment of a drilling tool installed on one car guide rail,

Figure 7 shows a guiding jig,

Figure 8 shows a first embodiment of a drilling tool with a drilling machine for perforating guide rails on installation site, and

Figure 9 shows a second embodiment of a drilling tool.

DETAILED DESCRIPTION

Figure 1 shows a schematic view of an elevator.

The elevator may comprise a car 10, an elevator hoistway 1 , a hoisting machinery 30, suspension ropes 31 , and a counterweight 13. A separate or an integrated car frame 10a may surround the car 10.

The hoisting machinery 30 may be positioned in the hoistway 1 . The hoisting machinery may comprise a drive 30a, an electric motor 30b, a traction sheave 30c, and a machinery brake 30d. The hoisting machinery 30 may move the car 10 in a vertical direction upwards and downwards in the vertically extending elevator hoistway 1 . The machinery brake 30d may stop the rotation of the traction sheave 30c and thereby the movement of the elevator car 10.

In Figure 1 , the car 10 is connected by the ropes 31 via the traction sheave 30c to the counterweight 13. The car and the counterweight are suspended by one or more ropes 31 which are guided over the traction sheave 30c for moving the car 10 vertically in the hoistway 1 .

In Figure 1 , the car 10 is further supported with guide members 7 at car guide rails 8 extending in the vertical direction in the hoistway. The guide rails may be attached with guide rail brackets 3 to the side wall structures 1 a in the hoistway. The guide members 7 ensure the vertical movement of the car 10 when the car moves upwards and downwards in the hoistway 1. The counterweight 13 is supported in a corresponding way on guide rails 9 that are attached to the wall structure 1 a of the hoistway 1 .

The car 10 may transport people and/or goods between landings 20 in a building 100. The elevator hoistway 1 may be formed so that the wall structure 1 a is formed of solid walls or so that the wall structure 1 a is formed of an open steel structure. A balustrade 10’ may be installed on the car 10, providing safe working area on a roof 18 of the car 10.

Figure 2 shows at an initial stage an arrangement for installing an elevator during construction of the building 100. A weather deck 101 and a temporary working deck 102 may be installed in the 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.

For example from the working deck 102, the elevator installers may install a protection deck 2 for protecting the portion of the hoistway 1 below the protection deck from any possible falling objects.

According to an embodiment, 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 .

According to an embodiment, the protection deck 2 comprises a frame 4 mounted on walls 1 a of the hoistway 1. According to an embodiment, the protection deck 2 comprises a cover co-operating with the frame and extending substantially horizontally across the hoistway 1 . The cover is adapted to protect the hoistway 1 from falling objects and/or water from falling into the hoistway below it.

According to an embodiment, the protection deck 2 comprises a first lifting point supported by the frame 4. The first lifting point may be used for hanging an upper pulley 17 of an overspeed governor 16 OSG. An OSG rope 19 may be passed over the OSG upper pulley 17 and an OSG lower pulley 17’. The first lifting point may comprise a first attaching member supported by the frame 4 for example equipped with an eye/opening or a corresponding similar means of attachment for a hook or a corresponding gripping member for hanging the overspeed governor 16.

According to an embodiment, the protection deck 2 comprises a second lifting point supported by the frame 4. The second lifting point may be used for hanging a chain hoist. The chain hoist may be used for elevator hoisting machinery 30 hoisting. The second lifting point may comprise a second attaching member supported by the frame 4 for example equipped with an eye/opening or a corresponding similar means of attachment for a hook or a corresponding gripping member for hanging the chain hoist.

According to an embodiment, 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 2- 5 supported by the protection deck 2.

According to an embodiment, the first hoisting apparatus 6 comprises 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.

According to an embodiment, the arrangement comprises a hoisting point 61 configured to support the car 10 or the installation platform 80 in the hoistway via the first hoisting machine 6a and the first flexible tension member 6b.

According to an embodiment, the hoisting point 61 comprises a connecting member 61 supported by the frame 4 of the protection deck 2. According to an embodiment, a rotatable diverting pulley 62 is supported by a hook or a corresponding gripping member. The hook may be connected to the connecting member 61. The connecting member 61 may be equipped with an eye/opening or a corresponding similar means of attachment for the hook or said corresponding gripping member. The diverting pulley 62 serves for guiding and supporting the hoist rope 6b.

According to an embodiment, the protection deck 2 comprises a second hoisting apparatus 5 also called a material hoist 5, supported by the protection deck, for hoisting construction material below the protection deck. According to an embodiment, the material hoist comprises a second hoisting machine also called a material hoisting machine mounted on the protection deck 2, preferably on the frame 4 thereof, and a second flexible tension member also called a material hoist rope movable with the material hoisting machine.

The protection deck 2 with auxiliary equipment may be used as movable installation tool for hoisting of large loads such as: a movable machine room or hoisting machinery 30 of an elevator located below the protection deck 2 or an elevator car 10 or an installation platform 80 below the protection deck 2, and construction material such as guide rails 8, 9.

The first hoisting machine 6a may be mounted on the elevator car 10 and the 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 8 and counterweight guide rails 9 and other heavy elevator components during the installation of the elevator.

Once the protection deck 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.

While the elevator is installed at the bottom part of the building 100 in the hoistway 1 , the building construction continues normally above it.

According to an embodiment, in the bottom section of the hoistway 1 , car guide rails 8, counterweight guide rails 9, a counterweight buffer assembly 11 , a car buffer assembly 12, a counterweight (CWT) 13 with a CWT pulley 13” and a CWT frame 13’ filled partly with CWT fillers 21 , and a working platform 10, 80 are installed in a pit 14. According to an embodiment, the working platform 10, 80 is then used as the installation platform, as shown in Figure 2. The working platform is moved with the help of the man riding hoist 6a, utilizing the first hoisting point 61 of the protection deck 2. Landing doors 15 and other elevator hoistway components are installed in the elevator hoistway 1.

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 may be fixed to the car by OSG rope terminals 19’ and guided around the upper 17 and lower 17’ OSG pulleys. A balustrade 10’ may be installed on the car 10.

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 car is equipped with walls. 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, a skewed pulley beam is installed to the car sling bottom beam. According to an embodiment, skewed pulley beam may also be installed to the car sling top beam. The car is provided with at least one car pulley 33 for the suspension rope 31 .

According to an embodiment, the elevator installation below the protection deck 2 is then completed for construction time use CTU. A hoisting machinery 30 and suspension ropes 31 are installed. According to an embodiment, the hoisting machinery 30 is hoisted close to the hoistway 1 wall 1 a before installing the car guide rail 8. The car 10 and the counterweight 13 are supported by the suspension ropes 31 suspended by rope suspenders 32, 32’ and the elevator hoisting machine 30 so that the elevator can serve as construction time elevator. A temporary headroom 1.1 electrification is finalized in the uppermost part of the hoistway 1 below the protection deck 2. Thereafter the elevator is inspected and handed over for construction time use to serve at lower part of the building 100, as shown in Figure 3.

According to an embodiment, the hoistway 1 may be extended by installing a further upper protection deck 2 or moving the protection deck 2 upwards in the hoistway 1 , for example some landings 20 upwards, and continuing the installation in an upper hoistway section.

When the hoistway 1 under construction above the mounted hoisting machinery 30 has reached a sufficient stage of completion, the almost completed portion of the hoistway can be taken into use. At this stage a jump is performed, wherein the hoisting machinery 30 is hoisted higher in the hoistway. According to an embodiment, the hoisting machinery 30 is moved to the top of the freshly installed hoistway section to be taken into construction time use. After the jump, the car 10 can reach a higher position than before the jump and start to serve additional floors.

According to an embodiment, as a preparation for an elevator jump to an upper hoistway section, the man riding hoist 6a hoisting point 61 is moved to the upwards disposed protection deck 2 in the hoistway 1 as shown in Figure 4.

According to an embodiment, the extending installation in the upper hoistway section is implemented using as the installation platform the car 10 supported by the protection deck 2, as shown in Figure 5.

According to an embodiment, the extending installation in the upper hoistway section is implemented using as the installation platform the working platform 80 supported by the protection deck 2, as shown in Figure 4.

Figure 6 shows, in connection of a jump, an exemplary temporary headroom 1.n installed in a hoistway 1 , the car 10 supported by the protection deck 2. For the sake of clarity and illustration, the car with car pulleys 33 is not shown in Figure 6. The roof 18 of the car 10 is shown with a dashed line in Figure 6. A hoisting rope 6b guided by e.g. the diverting pulley 62 may support the car 10 (shown in Figures 2, 4, 5) to be hoisted upwards when the machinery 30 and the rope suspenders 32, 32’ are mounted on the guide rails. The overspeed governor 16 used during the installation phase may be moved during the jump process or replaced by another overspeed governor which is shown by the overspeed governor 16’. The overspeed governor 16’ used after the jumps has been completed may be supported by the protection deck 2 or said overspeed governor 16’ may be mounted on the counterweight guide rail 9.

According to an embodiment, the hoisting machinery 30 is installed to the car guide rail 8 to be supported by the car guide rail 8. The hoisting machinery 30 may be a construction time elevator hoisting machinery or a final hoisting machinery to be finally installed in the headroom in the top section of the hoistway 1 after the uppermost elevator jump.

Figure 6 shows preferred details of a passage of a suspension roping 31 for the elevator car 10 and a counterweight 13 when the elevator hoisting machine is supported by the car guide rail.

The suspension ropes 31 pass from a first rope suspender 32 downwards to a first car pulley 33 and horizontally to a second car pulley 33 (not shown in Figure 6). The car pulleys 33 may be positioned at the outer ends of the skewed pulley beam 34 (not shown in Figure 6) extending across a sling bottom beam (not shown in Figure 6) of the car 10. The suspension ropes 31 pass after the second car pulley 33 upwards to a drive wheel of the hoisting machinery 30 and further downwards to the CWT pulley 13” (shown in Figures 2-5). The suspension ropes 31 pass after the CWT pulley 13” finally upwards to a second rope suspender 32’. The counterweight 13 is hanging from the counterweight pulley 13”. For extending the travel of the car 10, the roping 31 passes to e.g. a rope reel after the second rope suspender 32’.

According to an embodiment, guide rails are provided at the installation site with mounting holes for temporary headroom 1.1 , 1.n attachments made at height positions so that safety spaces, passing distances, serviceability, etc. are also achieved during construction time operation.

According to an embodiment, the temporary headroom 1.1 , 1.n attachments are selected from a group comprising machinery 30 supports 30’, 30”; rope suspender 32, 32’ brackets; guide rail brackets 3, 9’; OSG 16 brackets.

According to an embodiment, the mounting holes for headroom 1.1 , 1 .n attachments are provided to guide rails which are mounted in the hoistway. According to an embodiment, a mounting hole for a headroom attachment is provided to a car guide rail 8 which is pre-mounted in the hoistway. According to an embodiment, a mounting hole for a headroom attachment is provided to a counterweight guide rail 9 which is pre-mounted in the hoistway.

According to an embodiment, the mounting hole for a headroom attachment is provided to a guide rail at the installation site before mounting said guide rail to the wall of the hoistway. According to an embodiment, a mounting hole for a headroom attachment is provided to a car guide rail 8 at the installation site before mounting the car guide rail in the hoistway. According to an embodiment, a mounting hole for a headroom attachment is provided to a car guide rail 8 at the installation site before mounting the car guide rail in the hoistway. According to an embodiment, a mounting hole for a headroom attachment is provided to the guide rail at the installation site outside the hoistway. According to an embodiment, the mounting hole for a headroom attachment is provided to the guide rail at the landing 20.

Figure 6 is used to describe an exemplary elevator construction arrangement where perforation of guide rails has been performed on installation site and an exemplary first embodiment of a drilling tool 70 with a drilling machine 71 . In Figure 6, the drilling tool 70 is installed on a car guide rail 8. The machinery 30 is mounted on machinery supports 30, 30’. Mounting holes for attaching the machinery 30 and the rope suspenders 32; 32’ are manufactured on site to the guide rails.

Embodiments of drilling tools will be described in more detail in Figures 8 and 9.

By providing the mounting perforations to either the pre-mounted guide rails in the hoistway 1 or separately outside the hoistway e.g. at the landing 20 prior to mounting said guide rails to the wall 1 a of the hoistway 1 , using suitable tools and methods, it is easier and freer to make the jump to the agreed landing 20, reducing the need for additional materials, facilitating the work of front-line engineers, and reducing the possibility of errors. The front-line engineers do not have to make a final jump plan in advance and thereafter agree changes with the client.

In the following, preferred steps of a method for installing an elevator during construction of a building are presented when the pre-drilling of the guide rails takes place in the hoistway 1 , and the guide rails 8; 9 to be drilled are installed in place in the hoistway 1 with guide rail brackets 3; 9’ as shown in Figure 6.

According to an embodiment, moving the car on a predefined level in the hoistway prior to measuring a position d1 ...d5 of the machinery 30 and/or the rope suspenders 32; 32’.

According to an embodiment, positioning a sill of the car 10 at the same level as a sill of the landing 20. According to an embodiment the car is moved on the level of the wished landing 20, preferably using the hoist device 6 supported by the protection deck 2.

According to an embodiment, measuring position of the machinery 30 from the roof 18 of the car 10.

According to an embodiment, measuring position of the machinery 30 lower support 30’ directly from the roof 18 of the car 10, illustrated according to an example by a first dimension d1. According to an embodiment, measuring position of the machinery 30 upper support 30” directly from the roof 18 of the car 10, illustrated according to an example by a second dimension d2.

According to an embodiment, measuring positions of the rope suspenders 32; 32’ directly from the roof 18 of the car 10.

According to an embodiment, measuring position of the first rope suspender 32 directly from the roof 18 of the car 10, illustrated according to an example by a third dimension d3. According to an embodiment, measuring position of the second rope suspender 32’ directly from the roof 18 of the car 10, illustrated according to an example by fourth and fifth dimensions d4; d5.

Said measurements can be obtained easily by calculating from an installation drawing. If, for example, a guide rail connection of two consecutive guide rails falls into the drilling area, the position of the machinery 30 and the rope suspender 32; 32’ may be raised or lowered appropriately to allow drilling and component attachment. Naturally, safety spaces and maintenance requirements are considered when choosing the drilling height.

According to an embodiment, marking the above measured positions visibly to the guide rails to be perforated. The marking may be provided by an appropriate visible marking means known per se, for example with a pen or a punch.

According to an embodiment, marking the above measured position to the guide rail installed in place with guide rail brackets. According to an embodiment, marking visibly the above measured position to the guide rail for a lower edge of a guide means.

According to an embodiment, marking visibly the position of the machinery support 30’, 30” mounting holes for the machinery 30 support and rope suspender 32; 32’ mounting holes to the guide rails with said guide means. Preferably there are different guide means for different size elevators.

The drilling itself may be done manually, preferably using auxiliary equipment to facilitate drilling.

According to an embodiment the guide means comprises a guiding jig 50 which can also be used to determine the straightness and/or exact location of the mounting holes.

A guiding jig 50 according to an embodiment is shown in Figure 7 comprising, provided in a body 54 of the guiding jig, mounting hole drill guides 51 directable towards the guide rail 8, 9 foot 52.

According to an embodiment the mounting hole drill guide 51 is made of metal such as steel. According to an embodiment the body 54, also called a front part 54, is made of engineering plastic such as polymer material. Providing a perforating tool such as a drill into a guide hole 53 in the drill guide 51 will ensure that the mounting hole will be machined in correct position in the foot 52 of the guide rail. The front part 54 in Figure 7 comprises a groove 55 for receiving a guide rail head 56. The front part 54 comprises fixing means 57 such as screw holes for a joint to be formed with a counterpart 58 to be located behind the guide rail. According to an embodiment the guide rail can be clamped between the front part 57 and the counterpart 58 providing a secure locking for the guiding jig 50 around the guide rail.

According to an embodiment two different sized perforating tools are used in drilling since the perforating is done in metal. According to an embodiment a smaller perforating tool such as a smaller drill is used to make a pilot hole to facilitate drilling and a larger perforating tool such as a larger drill is used for the final mounting hole. According to an embodiment the mounting hole drill guide 51 is made of metal. According to an embodiment the mounting hole drill guide 51 is used for perforating the final mounting hole.

According to an embodiment the guiding jig 50 comprises a guide insert 59 to facilitate drilling. According to an embodiment the mounting hole drill guide 51 is used for receiving the hole insert 59 with smaller drilling diameter 59’ than the guide hole 53 to make a pilot hole. According to an embodiment the hole insert 59 is made of metal.

According to an embodiment, a guiding jig is located at the measured and visibly marked position. According to an embodiment, a lower edge of the guiding jig is located at the measured and visibly marked position. The front part and the counterpart may be tightened around the guide rail.

According to a first example a first pilot hole is perforated by drilling through the guide insert 59 with e.g. a 6 mm drill and the drill is left in the pilot hole for further securing the place of the jig 50. The pilot holes for the other mounting holes may be drilled. After removing the drill hole insert 59, a final e.g. 13 mm mounting hole may be drilled in each free pilot hole. The first 6 mm pilot drill may be removed with its hole insert 59 and the last pilot hole may be drilled to final size. Two hole inserts 59 are needed according to this example. Thereafter, the guiding jig 50 may be removed. After performing all perforations, the machinery supports 30, 30’ may be mounted to the perforated mounting holes for the machinery 30, and rope suspenders 32; 32’ may be mounted to respective mounting holes.

According to another embodiment providing mounting hole positioning, the positions of the machinery support holes and the positions of the rope bracket mounting holes are marked using the above described guiding jig 51 or a second guiding jig provided of steel plate.

According to an embodiment, a type marking 50.1 is provided on the guiding jig with the holes to be drilled according to the type of machinery and guide rail.

According to a second example, after marking correct position of the guiding jig to the guide rail and placing said guiding jig on the guide rail, positions of pilot holes for each mounting hole may be marked using a center punch through holes in respective guiding jig. The visible punched centers of mounting holes on the guide rail serve as pilot points when the pilot holes are drilled using e.g. a 6 mm drill. Thereafter, the final e.g. 13 mm mounting holes may be drilled in the pilot holes.

According to an embodiment, ensuring during drilling, that there is sufficient lubrication of the drill to avoid damage and that chips are removed, e.g. with a vacuum cleaner and a suitable nozzle or a magnet cup.

According to an embodiment, finally attaching the machinery 30 and the rope suspenders 32; 32’ to the mounting holes drilled.

When the pre-drilling of the guide rails takes place at the landing 20, the steps are the same but according to an embodiment, the perforation is carried out on the landing 20, preferably the guide rail placed horizontally. After drilling, the drilled guide rail is lifted into the hoistway 1 and installed in position. There are differences in the measurement and positioning of the guide means such as the drilling jig but the working and equipment are the same as for drilling in the hoistway.

According to an embodiment, to facilitate perforating, various auxiliary equipment are used to reduce the muscular strain on the driller and improve drilling accuracy.

Figures 8 and 9 show embodiments of drilling tools 70; 80. The arrangement comprises a drilling tool attachable to the guide rail. The drilling tool has a cutter 72 to provide the mounting perforation as aligned with the marked position of the perforation.

A drilling machine 71 is mounted on the first drilling tool 70. The drilling tool comprises a body 70a to be locked stationary to the guide rail, and a sliding part 70b movable relative to the body 70a.

According to an embodiment, the drilling tool 70; 80 is attached to the guide rail 8; 9 and a cutter such as a drill 72 mounted to a chuck 76 of the drilling tool is aligned with the marked hole. The horizontal alignment may be achieved by use of adapting pieces between jaws 73 in the body 70a for different size guide rails or by a separate fine adjustment mechanism 74 implemented e.g. with a screw. The vertical alignment may be achieved by use of at least one lock screw 75.

According to an embodiment, the drilling tool comprises a drill chuck 76 which may be attached to the sliding part 70b. This is to ensure that the drill bit 72 always remains perpendicular to the guide rail.

The sliding part 70b is arranged on linear guides 77 to the body 70a. According to an embodiment, the linear guides 77 comprise bars mounted to the sliding part 70b, and moving inside respective bushings in the body 70a.

After an appropriate cutting blade 72 is attached to the chuck 76 and the drilling machine 71 is connected to it, a ratchet 78 may be inserted into a feed screw 79 between the body and the upper part, and adjacent to the linear guides 77 to feed the cutting blade during drilling. By turning the ratchet 78, the drill bit is lowered at an appropriate speed. During feed, the operator may hold the drilling machine with one hand and pull the trigger. The hole can be drilled with two different blade sizes or just one, depending on which blades are used.

Once the hole has been drilled, the tool 70; 80 is moved to the next marked hole by loosening the tool clamping jaws 73 and respective vertical locking 75 and moving the blade to the next mark. The jaws are tightened and the drilling is started. Figure 9 shows a second drilling tool 80 which differs from the first drilling tool 70 in that the feed screw 81 comprises a head which may be rotated with an auxiliary tool. According to the example in Figure 9, the auxiliary tool may be a hexagon wrench also called Allen wrench, wherein the feed screw head is a hexagon socket head. According to another example, the auxiliary tool may be a socket wrench, wherein the feed screw head may be a hexagon head.

A so-called step drill may be used for drilling. The blade may have a shoulder which can be positioned against a thrust bearing in the tool. This is so that the drill bit always remains perpendicular to the guide and the thrust bearing allows the blade to rotate. The drill bit is pushed through the thrust bearing in the drilling tool and connected to the drilling machine as shown in the picture, and a ratchet is inserted in the adjacent screw to feed the blade during drilling. By turning the ratchet, the blade is pressed down at the appropriate speed.

When drilling into installed guide rails in the hoistway, a trough, preferably made of plastic or steel, may be placed under the drilling tool. Preferably a sufficient number of magnets are placed in the trough to bind the falling metal chips. The trough can also be surrounded by fabric or plastic shields on the back and both sides to prevent chips from falling to the bottom of the shaft. Only the front may be left free for drilling. The trough also collects the oil used for drilling. The trough can effectively prevent drill chips from entering the elevator components and substantially reduce damage.

The drilling tool fits into a small space and is completely in front of the guide rail. The drilling tool takes guidance from the machined surfaces of the guide rail, improving drilling accuracy. The ergonomics of the installer are taken into account. Drilling does not require heavy pressure or prolonged support of the drill. The guiding and drilling equipment is based on simple recyclable tools.

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 ), 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 machinery (30) and a suspension roping (31 ) arranged to suspend the car (10) and the counterweight (13) during construction time use, a protection deck (2) mounted within the hoistway (1 ) during an elevator installation in the hoistway, a hoist device (6) configured to move the car (10) or at least parts of the car below the protection deck (2), the car being guided on the car guide rails (8), wherein the arrangement comprises at least one guide rail (8; 9) with mounting perforations such as mounting holes made at the construction site for the machinery (30) and/or for at least one rope suspender (32, 32’) in connection with an elevator jump.

2. The arrangement according to claim 1 , wherein the hoistway (1 ) is provided with at least one car guide rail (8) comprising lower machinery support (30’) mounting perforations and/or upper machinery support (30”) mounting perforations for the machinery (30); and/or rope suspender bracket mounting perforations for the at least one rope suspender (32, 32’).

3. The arrangement according to claim 1 or 2, wherein the hoistway (1 ) is provided with a counterweight guide rail (9) comprising rope suspender bracket mounting perforations for the at least one rope suspender (32’).

4. The arrangement according to any of claims 1 to 3, wherein the jump comprises a hoisting operation of the machinery (30) into a headroom (1.n) in the hoistway (1 ) as the elevator travel is extended; and/or the jump comprises a hoisting operation of the rope suspenders (32, 32’) into a headroom (1 .n) in the hoistway (1 ) as the elevator travel is extended.

5. The arrangement according to claim 1 , wherein the hoist device (6), supported by the protection deck (2), comprises a man riding hoist (6a) attachable to the car (10), and a hoist rope (6b) attachable to the car and movable with the hoist device during elevator installation.

6. The arrangement according to claim 1 , wherein the guide rails (8; 9) are provided at the installation site with mounting holes for headroom (1 ,1 ; 1.n) attachments made at height positions so that safety spaces, passing distances, and serviceability are achieved during construction time operation.

7. The arrangement according to claim 6, wherein the headroom (1.1 , 1 .n) attachments are selected from a group comprising machinery (30) supports (30’, 30”); rope suspender (32, 32’) brackets; guide rail brackets (3, 9’); overspeed governor (16) brackets.

8. The arrangement according to any of claims 1 to 7, wherein the mounting perforations have been provided to a guide rail (8; 9) which is mounted to the wall (1 a) of the hoistway (1 ).

9. The arrangement according to any of claims 1 to 7, wherein the mounting perforations have been provided to a guide rail (8; 9) before mounting said guide rail to the wall of the hoistway (1 ).

10. The arrangement according to claim 9, wherein the mounting perforations have been provided at the installation site outside the hoistway (1 ), preferably at a landing (20).

11. The arrangement according to any of claims 1 to 10, wherein a position measurement (d1... d5) of the machinery (30) and/or the rope suspenders (32; 32’) for performing mounting perforations is measurable from a roof (18) of the car (10), preferably as the car has been moved on a predefined level in the hoistway, more preferably on the level of a wished landing (20) or as a sill of the car is positioned at the same level as a sill of the landing (20).

12. The arrangement according to claim 11 , comprising on the guide rail (8; 9) a visible marking of said position measurement (d1 ... d5).

13. The arrangement according to any of claims 1 to 12, comprising a guide means such as a guiding jig (50) usable to determine the straightness and/or exact location of the mounting perforations, the guiding jig preferably comprising a guide insert (59).

14. The arrangement according to any of claims 1 to 13, comprising a drilling tool (70; 80) attachable to the guide rail (8; 9) and comprising a cutter (72) inserted in a chuck (76) to provide the mounting perforation as aligned with a marked position of the perforation.

15. The arrangement according to any of claims 1 to 14, wherein the elevator car (10) is intended for the use of passengers during construction.

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) for guiding the car, and counterweight guide rails (9) for guiding the counterweight, providing an elevator hoisting machinery (30) and a suspension roping (31 ) for suspending the elevator car (10) and the counterweight (13) during elevator construction time use, mounting a protection deck (2) within a hoistway (1 ) in the building (100), providing a hoist device (6) for moving the car (10) or at least parts of the car below the protection deck (2), the car guided on car guide rails (8) installed in the hoistway (1 ), wherein the method comprises, in connection with an elevator jump, perforating at the construction site at least one guide rail (8; 9) with mounting perforations such as mounting holes for the machinery (30) and/or for at least one rope suspender (32, 32’).

17. The method according to claim 16, comprising measuring from a roof (18) of the car (10) position (d1 ... d5) of the machinery (30) and/or the rope suspenders (32; 32’) for performing mounting perforations for the machinery and/or for the at least one rope suspender.

18. The method according to claim 17, comprising marking on the guide rail (8; 9) a visible marking of said position measurement (d1 ... d5).

19. The method according to claim 17 or 18, comprising using a guide means such as a guiding jig (50) to determine the straightness and/or exact location of the mounting perforations based on said position measurement (d1... d5).

20. The method according to claim 18 or 19, comprising locating a guiding jig (50) at the measured and visibly marked position (d1 ... d5).

21. The method according to any of claims 16 to 20, comprising attaching to the guide rail (8; 9) a drilling tool (70; 80) comprising a cutter (72) inserted in a chuck (76), aligning the cutter with a marked position of the mounting perforation, and perforating the mounting perforation as aligned with the drilling tool.

22. The method according to any of claims 16 to 21 , comprising moving the caron a predefined level in the hoistway prior to measuring a position (d1 ... d5) of the machinery (30) and/or the rope suspenders (32; 32’), said predefined level preferably being the level of a wished landing (20) or positioning a sill of the car at the same level as a sill of the landing (20).

23. The method according to any of claims 16 to 22, comprising perforating the mounting perforations to a guide rail (8; 9) which is mounted to the wall (1 a) of the hoistway (1 ).

24. The method according to any of claims 16 to 22, comprising perforating the mounting perforations to a guide rail (8; 9) before mounting said guide rail to the wall of the hoistway (1 ).

25. The method according to claim 24, comprising perforating the mounting perforations to the guide rail (8; 9) at the installation site outside the hoistway (1 ), preferably at a landing (20).

26. The method according to any of claims 16 to 25, comprising perforating at least one car guide rail (8) with lower machinery support (30’) mounting perforations and/or upper machinery support (30”) mounting perforations for the machinery (30); and/or with rope suspender bracket mounting perforations for the at least one rope suspender (32, 32’).

27. The method according to any of claims 16 to 26, comprising perforating a counterweight guide rail (9) with rope suspender bracket mounting perforations for the at least one rope suspender (32’).

28. The method according to any of claims 16 to 27, wherein in connection of the jump, hoisting the machinery (30) into a headroom (1.n) in the hoistway (1 ) as the elevator travel is extended; and/or hoisting the rope suspenders (32, 32’) into a headroom (1.n) in the hoistway (1 ) as the elevator travel is extended.

29. The method according to any of claims 16 to 28, comprising moving the car (10) by the hoist device (6) supported by the protection deck (2).

30. The method according to any of claims 16 to 29, comprising providing the guide rails (8; 9) at the installation site with mounting holes for headroom (1 ,1 ; 1.n) attachments made at height positions in the guide rails so that safety spaces, passing distances, and serviceability are achieved during construction time operation.

31. The method according to claim 29, wherein the headroom (1.1 , 1 .n) attachments are selected from a group comprising machinery (30) supports (30’, 30”); rope suspender (32, 32’) brackets; guide rail brackets (3, 9’); overspeed governor (16) brackets.