HK1166301A - Method and elevator arrangement - Google Patents

Description

Method and elevator arrangement

Technical Field

The object of the invention is a method as defined in the preamble of claim 1 and an elevator arrangement as defined in the preamble of claim 13.

Background

For so-called jump-lifts, the bottom part of the elevator shaft can be taken into use of the elevator before the building has been completed. In this case the building and the upper part of the elevator hoistway can be constructed at the same time as the elevator moving in the bottom part of the elevator hoistway has served the people on the lower floors of the building. In jump-lifts, as a rule, the elevator car moving in the lower part of the elevator hoistway is supported and moved during use during construction by means of a hoisting machine supported on a support platform in the elevator hoistway, which support platform thus forms the machine room platform. The installation work in the upper part of the elevator hoistway above this machine room platform, which includes, inter alia, electrification in the elevator hoistway and installation of guide rails, is carried out from the movable platform of the elevator hoistway or equivalent. When the building above the machine room platform and the elevator shaft in construction have reached a sufficient completion stage, the completed part of the elevator shaft can be taken into use. In this case, a jump-lift is performed, in which the machine room platform is lifted higher in the elevator hoistway. A worksite crane used in construction of a building is generally used for jump-lift. One problem with this type of arrangement is that a worksite crane is not always available when needed. A solution of this type is provided in particular in the publication GB 1194618. Another proposed method for performing a lift of a machine room platform in connection with a jump-lift is provided in publication EP1583710B 1. In the solution described, the vertical supporting force required for lifting is taken from the already installed guide rail, through which the load is transferred to the building.

Especially due to the higher buildings than before, the weight of the machine room platform and the weight of the part of the elevator supported by the machine room have increased. Due to the very high travel height of modern elevators, in particular, the machine size and rope mass are so large that the lifting capacity required for performing the last jump-lift is very large. For the same reason, the supports required for lifting must be made very strong. The above-described solution supported on the guide rails cannot be used for this purpose in all cases, because the weight heavier than the machine room platform cannot be distributed to rest on the guide rails.

There are also prior-art solutions in which the machine room platform supporting the elevator car is lifted by means of a hoisting device placed to act between the machine room platform and a supporting structure higher in the elevator hoistway. It can be, for example, a hydraulic hoist, as in publication WO0007923a 1. One problem with the solution described is that the lifting device is large in size, complex, expensive to manufacture and laborious to install. In particular, one disadvantage is that the lifting requires a hydraulic hoist of long stroke length, in which case the apparatus is expensive to manufacture, space-consuming and heavy.

Disclosure of Invention

The object of the present invention is to eliminate the above-mentioned drawbacks of the prior art solutions in particular. More specifically, the object of the invention is to create an improved construction-time elevator arrangement and method, by means of which the construction-time operating range of the elevator can be extended upwards in the building. It is a further object of the invention to produce at least one or more of the following advantages:

a solution is achieved by which an elevator with a very large mass can be moved by simple means in a jump-lift manner.

Elevator installation is not dependent on a site crane for the building.

A solution is achieved in which a very heavy support platform and the parts connected thereto can be moved/supported by a light lifting device of small dimensions.

A solution is achieved in which the mass of the support structure required for moving the support platform is small, in which case it can be moved by means of a light hoisting device and by simple means, for example by means of a hoisting device reserved for moving a working platform running in the upper part of the elevator hoistway.

No heavy lifting beam is required, nor are complicated means for moving the lifting beam.

The length of the jump-lift can be chosen as desired.

A climbing solution is achieved which does not need to be supported on the guide rails of the elevator car or counterweight, so that e.g. the guide rails do not need to be positioned accurately after the jump-lift.

A solution is achieved by which the installation is fast, since, for example, preliminary preparation speeds it up compared to earlier.

During normal use during construction of the elevator, no load is exerted on the guide rails.

The hoisting device and the machine room for jump-lift take up less space in the vertical direction of the elevator shaft.

The structure of the support platform is light.

Less material, more particularly less steel, is used in the manufacture of the lifting device, the support platform and the support structure.

The method according to the invention is characterized by what is disclosed in the characterization part of claim 1. The arrangement according to the invention is characterized by what is disclosed in the characterization part of claim 13. Other embodiments of the invention are characterized by what is disclosed in the other claims. Some embodiments of the invention are also presented in the description part and drawings of the present application. The inventive content of the application can also be defined differently than in the claims presented below. The inventive content may also consist of several separate inventions, especially if the invention is considered in the light of expressions or implicit sub-tasks or from the point of view of advantages or categories of advantages achieved. In this case, some of the attributes contained in the claims below may be superfluous from the point of view of separate inventive concepts. The features of the various embodiments can be combined with other embodiments within the framework of the basic idea of the invention.

According to the invention, in a method for constructing an elevator, more particularly an elevator for use during the construction of a building, in which method the range of motion of the elevator car of the elevator in the elevator hoistway is varied in a plurality of steps (instaps) to extend upwards in the elevator hoistway by means of a stepped hoisting of the support platform of the elevator car, in which method the support platform is lifted upwards in the elevator hoistway by means of a hoisting device, and the supporting force required for the hoisting is available from the building via a supporting structure. In the method the support platform is moved in the longitudinal direction of the elevator hoistway while being supported on a support structure which is immovably supported on the building to move the position for obtaining support from the support structure upwards with the lifting of the support platform. Thus, a stand-alone, light and compact structure results. The structure thus implemented can climb up in the elevator shaft, if necessary. By means of the solution, the aforementioned further advantages are also achieved.

In one embodiment of the invention the support structure is a rigid structure, the support elements of which are preferably H-shaped beams, which support structure together with the support elements is immovably supported at a desired position on the building at least during lifting.

In one embodiment of the invention the support element is a beam, preferably a metal beam, which is elongated in the longitudinal direction of the elevator hoistway. It is therefore simple, light and inexpensive and easy to temporarily install.

In one embodiment of the invention the support element is an elongated profile beam in the longitudinal direction of the elevator hoistway. Thus, it can be used for guidance, for example, in particular during lifting.

In one embodiment of the invention, after the lift, the structure of the elevator hoistway above the supporting platform is installed before the next lift, and between lifts the elevator car is taken into use to serve users at least in the part of those floors of the building that are below the supporting platform.

In one embodiment of the invention, during the lifting, the lifting of the support platform is guided by means of the shape of the support elements of the support structure. In this way, a safe boost is achieved.

In one embodiment of the invention, the lifting is performed in a plurality of steps by moving the position from which the support structure, more particularly the support element thereof, is supported upwards in a plurality of steps. In this way, a climbing solution is achieved that is substantially independent of other lifting devices.

In one embodiment of the invention, after the lift, the support platform is supported in its position so that it does not move relative to the building, and the support structure moves upwards in the elevator hoistway. In this way the dimensions of the support structure, more particularly the support elements thereof, can be mounted to advantage. The solution is light, cheap and compact. By means of this solution the elevator can be formed very light, without the need for a very long structure in the longitudinal direction of the elevator hoistway.

In one embodiment of the invention the support structure is suspended in the elevator hoistway on a second support structure above the support structure and on a second hoisting means, and the support structure is moved upwards in the elevator hoistway by means of them.

In one embodiment of the invention, the length of one lift is approximately one floor height.

In one embodiment of the invention, in the method at least the following phases are performed:

A) the support platform (3) is lifted in relation to the support structure (6), wherein the support structure (6) is fixed to the elevator hoistway (1) while being supported on a support arrangement (Wc2), which support arrangement (Wc2) is supported at a first height on a support element (P), which support arrangement (Wc2) supports a hoisting device (HC) on the support element (P),

B) for example by supporting the support platform on an immovable structure of the building, for example on a support structure (6) or on the elevator shaft, the support platform being locked so as to be immovable relative to the elevator shaft,

C) the support means (Wc2) moves upwardly and is supported on the support element at a second height,

D) the locking of the support platform is released and,

E) the support platform is lifted relative to the support element by means of a lifting device, wherein the support element is immovably fixed to the elevator hoistway while being supported on a support means (Wc2) that has been moved to a second height,

F) for example, by supporting the support platform on a non-movable structure, such as on an elevator shaft or on some other structure of the building, the support platform is locked so as to be non-movable relative to the elevator shaft,

G) a movable support structure is lifted upwards in the elevator hoistway, and the support structure is fixed to a non-movable structure, e.g. to the elevator hoistway (1).

In one embodiment of the invention the method comprises at least one, preferably a plurality of stages E 'between stages E and F, in which stage E' the supporting means (Wc2) is moved and supported at the next height on the supporting element, the supporting platform being lifted relative to a supporting structure fixed to the elevator hoistway while being supported on the supporting means (Wc 2).

In one embodiment of the invention, between jump-lifts, a second hoisting device is used to move a working platform in a construction elevator hoistway between a second support structure and the support structure.

In one embodiment of the invention, two hoisting means are used in the hoisting, which hoisting means are hoisted simultaneously, the hoisting speeds of the hoisting means used in the hoisting preferably being synchronized by synchronizing means.

According to the invention, an elevator arrangement, more particularly an elevator arrangement in an elevator during construction, comprises: an elevator shaft; an elevator car; a hoisting rope (11) for moving the elevator car (2) in the elevator hoistway; a support platform for supporting an elevator car therebelow via hoisting ropes; means for moving the hoisting ropes, such as traction sheaves and motors; a movable support structure in the elevator shaft; a lifting device arranged to lift the support platform upwards in the elevator hoistway while being supported by the support structure. The support structure comprises an elongated support element in the longitudinal direction of the elevator hoistway, on which support element the hoisting means are arranged to rest such that the position from which support is obtained from the support element must be moved in the longitudinal direction of the support element.

In one embodiment of the invention the support structure is a rigid structure, the support elements of which are preferably H-shaped beams, which support structure together with the support elements is immovably supported at the desired location of the building at least during lifting.

In one embodiment of the invention the support element extends in the longitudinal direction of the elevator hoistway at least a floor-to-floor distance, preferably more, most preferably about 4 meters.

In one embodiment of the invention the support element extends 1-5 meters, preferably 3.5-5 meters, most preferably about 4 meters in the longitudinal direction of the elevator hoistway.

In one embodiment of the invention the support means comprise a hydraulic lifting device and means for supporting the lifting device on an elongated support element such that the position where support is obtained from the support element has to be moved in the longitudinal direction of the support element.

In one embodiment of the invention the support platform comprises support means arranged to rest on the support element such that the position from which support is obtained from the support element must be moved.

In one embodiment of the invention the elevator arrangement comprises a plurality of hoisting devices, each hoisting device being arranged to obtain the supporting force required for the lifting from the building via its own supporting element.

In one embodiment of the invention the elevator arrangement comprises a second support structure above the support structure in the elevator hoistway, and a second hoisting device for hoisting the support structure in the elevator hoistway while supported on the second support structure, the second support structure and the second hoisting device also preferably being arranged to move a working platform in the elevator hoistway under construction in the part of the elevator hoistway between the second support structure and the support structure.

In one embodiment of the invention the support structure comprises a plurality of elongated support elements which are at a distance from each other in the horizontal direction and which extend in the longitudinal direction of the elevator hoistway.

In one embodiment of the invention the support element is a rail profile, preferably an H-beam, the support platform being arranged to be lifted guided by it.

In one embodiment of the invention, the support means for supporting the lifting device and/or the support platform on the support element comprises a movable support unit which is movable to extend in vertical projection of the profile structure of the support element, by means of which support the support platform and/or the lifting device can rest supported by the support element (P), and the support element comprises an aperture for this purpose, in which the support unit can be moved and supported.

In one embodiment of the invention, the support arrangement is connected to the support platform and the lifting device for supporting said support platform and/or the lifting device on the support element, the support arrangement comprising a movable support unit for supporting on the support element, and the support unit being arranged to allow upward directed movement and to prevent downward directed movement of the lifting device and/or the support platform.

In one embodiment of the invention, the lifting device is a hydraulic lift.

In one embodiment of the invention, the lifting platform is movable between an extended position in which the support platform rests in a vertical direction on the building and a retracted position in which the support platform does not rest in a vertical direction on the building.

In one embodiment of the invention the elevator arrangement comprises at least two hoisting means and means for synchronizing the hoisting speed of the hoisting means, such as measuring means and speed comparing means, such as a tachometer and a microprocessor, and a controller of the hoisting means, which controller controls the hoisting means on the basis of the result of the comparing means.

In one embodiment of the invention, the lifting device comprises a rotor of a linear motor, the support element forming a stator for the rotor of the lifting device, or vice versa.

Drawings

The invention will be described in more detail below by means of certain embodiments with reference to the accompanying drawings, in which:

fig. 1 presents a diagrammatic side view of an elevator arrangement during construction of an elevator in a building according to an embodiment of the invention, in which hoisting is arranged to be carried out by means of a method according to the invention;

fig. 2 presents a three-dimensional diagrammatic view of an elevator arrangement during construction of an elevator in a building according to an embodiment of the invention, in which hoisting is arranged to be carried out by means of a method according to the invention;

2-7 illustrate different stages of a method carried out by the apparatus of FIG. 2;

fig. 8a and 8b show a support device according to the invention.

Detailed Description

The elevator arrangement comprises a supporting platform 3 fitted into the elevator hoistway 1, which supporting platform supports an elevator car below it via hoisting ropes 11, said elevator car 2 being used to serve passengers in the lower floors of the building during the construction phase of the building. After the construction of the elevator hoistway has proceeded to a sufficient completion stage, jump-lifts with the elevator arrangement can be carried out for changing the range of motion of the elevator car 2 in steps to reach a higher height in the elevator hoistway 1. This is arranged to be performed by lifting the support platform 3 upwards in the elevator hoistway 1. To this end the elevator arrangement according to the invention comprises a movable support structure 6 supported on a wall structure of the elevator hoistway extending above the support platform 3, and a hoisting device HC, Wc2 arranged to act between the support structure 6 and the support platform 3, wherein said hoisting device is arranged to hoist the support platform 3 upwards in the elevator hoistway 1 while supported by the support structure 6. The support structure is supported on the wall structure of the elevator hoistway 1 or on the beams for obtaining the vertical support force required for lifting the support platform 3 from the building. The final height of the building is drawn with dashed lines in fig. 1. The elevator arrangement comprises a second support structure 14 above the support platform in the elevator hoistway, and a second hoisting means (21, 22) by means of which the support structure is movable upwards in the elevator hoistway 1 and/or the mounting platform 15 is movable above the support platform. The support platform 3 can be moved in the elevator hoistway in the vertical direction and can be locked at a desired height in that it can be moved between an extended position, in which the support platform rests on the building in the vertical direction, and a retracted position, in which the support platform does not rest on the building in the vertical direction. This may be implemented, for example, such that in the extended position the support unit comprised in the support platform extends further away from the support platform 3 in the horizontal direction than in the retracted position, and extends to the extended position against the top surface supported on the building. This can be achieved e.g. by an elevator arrangement in which the support unit is telescopically or in a folding manner connected to the frame structure of the support platform. When the elevator car 2 is used for providing service, the support platform rests on the support unit between jump-lifts. The device/method shown in fig. 1 is advantageous in its detailed aspects to be implemented in the manner presented in fig. 2-8 b.

Fig. 2 presents a diagrammatic side view of an elevator arrangement according to an embodiment of the invention during construction of the elevator in a building, in which hoisting is arranged to be carried out by means of the method according to the invention. In the elevator arrangement the support platform 3 is supported on the building via the support element P of the support structure by supporting the support platform in a detachable manner above the support element via the support means Wc 1. The support platform 3 preferably supports the hoisting machine 30 of the elevator (not shown), but this is not necessary, as the hoisting machine 30 may also be elsewhere. The elevator arrangement comprises hoisting means HC, each of which is supported on its own support element via a detachable support means Wc 2. The support element P is an elongated profiled structure, preferably an H-beam, and comprises a plurality of apertures at a distance from each other, in which apertures the support devices Wc1 and/or Wc2 can be supported. Each lifting device HC is a hydraulic lift, the plunger of which moves in a hydraulic cylinder and is able to exert a substantially large force on the support platform to move it. The lifting device HC is connected to the supporting means Wc1 and Wc2 substantially in a fixed manner, directly or indirectly, for example via a supporting platform.

In the method for constructing an elevator, more particularly an elevator used during the construction of a building, more particularly an elevator for transporting goods or people, the range of motion of the elevator car 2 of the elevator in the elevator hoistway 1 is changed in a plurality of steps to extend higher in the elevator hoistway 1 by means of a multi-stage hoisting of a support platform 3 supporting the elevator car 2 of the elevator in the elevator hoistway 1 with a support unit according to e.g. fig. 8a-8 b. The support platform is preferably placed in the elevator hoistway 1 by means of an elevator arrangement according to fig. 1. In the method the support platform 3 is lifted upwards in the elevator hoistway by means of the hoisting devices HC, Wc2, the supporting force required for the lifting being taken from the building via the support structure 6. In the method, the support platform 3 is moved upwards in the longitudinal direction of the elevator hoistway 1 while being supported on a support structure 6, which support structure 6 is immovably supported on the building to move the position for obtaining support from the support structure upwards with the lifting of the support platform.

Fig. 3 shows the case of the method, in which the lifting device HC is supported on the support element P by means of the supporting means Wc2 and pushes the support platform 3 upwards. After the lifting device HC has lifted the support platform a distance of a stroke length, the support platform 3 is locked to the support element P by means of the support means Wc1, the support unit 8 of which engages (e.g. by spring loading) into the aperture H of the support element P. Thereafter, the lifting device HC itself is pulled upward while being supported by the supporting unit 8 of the supporting device Wc1, as shown in fig. 4. To this end, the top end of the lifting device is fixed to a mounting platform or to a support Wc 1. The lifting device is also fixed to the lower support Wc2 and when pulling itself upwards, the lifting device HC pulls the support Wc2 with it, the support unit 8 included in the support allowing the support Wc2 to move upwards with respect to the support element P. When the lifting device HC has pulled itself upwards by the distance allowed by its movement tolerance and the support unit 8 is in the position of the aperture H and is pushed inside the aperture H, e.g. by spring loading, the next movement of the support platform 3 can be performed by pushing the support platform 3 upwards, as shown in fig. 5. The support unit 8 of the support device Wc1 is similar to Wc2 of a lifting apparatus such that it allows the support platform to move upwards, for example automatically by virtue of its shape and by virtue of the spring loading imparted when lifted. The support platform 3 is thus moved upwards by a desired amount by repeating the above process. The support platform and the lifting device thus climb along the elongated support element in a manner that it gets supported from the support element accordingly, so that when one is supported on the support element, the other is movable upwards while supported on it. Fig. 6 shows the elevator installation in the final stage of the hoisting, in which the supporting platform 3 is immovably supported on the building. The progress then depends on whether it wishes to lift the support platform 3 still higher. If the supporting platform is at a desired height in the elevator hoistway, the elevator car can be taken into use after supporting the supporting platform on the building. If it is still desired to lift the support platform, after supporting the support platform on the building, the bracing means Wc1 and Wc2 are released from the bracing elements and the bracing means Wc2 and the lifting apparatus are kept suspended from the support platform. The support structure 6 together with the support elements P is supported in the elevator hoistway by the second hoisting device 22, the fixing Wb of the support structure is detached from the building and the support structure 6 is lifted upwards in the elevator hoistway, as shown in fig. 7. Thereafter, the support structure 6 is again fixed to the building by the fixing member Wb for the next lifting, which is performed as described earlier. In connection with this, the supporting means Wc2 and the lifting device HC are again fixed to the supporting element P at the first level. These lifts continue as required by the overall height of the jump lift. During the hoisting, the elevator car is preferably fixed to the support platform and the counterweight is in its extreme position at the bottom. The length of the rope increases during the hoisting as required. The height of the lift is preferably one floor, in which case the support elements extend in the longitudinal direction of the elevator hoistway, preferably 3.5-5 meters, most preferably about 4 meters. In this case, a lift of one floor to the floor length can be accomplished by one lift. The support element 3 is preferably shaped with a profile structure of the type that it can function as a guide surface to guide the lifting of the support platform. To this end, it is advantageous that the guide means corresponding to the support element P are fixed to the support platform and that the support element comprises at least one substantially flat surface which continues uninterruptedly and straight for a distance of substantially raised length, preferably substantially 1-5 meters, more preferably 3.5-5 meters, most preferably 4 meters, as described above.

Fig. 8a shows a support device Wc1, Wc2 according to the invention, the support unit of which is arranged into the aperture H of the support element P. In fig. 8b, the support unit has moved away from the position of the aperture. The support means comprise a movable support unit 8, the support unit 8 being arranged to be urged in a spring-loaded manner towards an extended position in which a support surface 27 of the support unit faces substantially downwards. The support unit 8 is adapted to be placed face to face by means of the support surface 28 of the support element P, which faces upwards as seen from the top. The support unit is arranged to be moved out of the extended position by pushing against the spring force, which pushing can be exerted on the support unit 8 from above by the action of a part of the building or elevator separate from the support element or from the structure supported thereby, to rotate the support unit in a first direction. In this figure, the support element P is arranged to push the support unit and bend it out of the extended position against the spring force when the support means moves upwards, so that the support unit rises together with the support means. The support unit comprises a movement allowance which limits the bending of the support unit such that the support unit cannot be bent from the extended position in the second direction II but, instead, only in the retracting direction (first direction I). The movement allowance is limited by means of corresponding surfaces of the support means Wc1, Wc2, against which the corresponding surfaces 25 of the support unit 8 are arranged to be fixed when the support unit has been moved into the extended position. The support unit can be bent by means of a pivot shaft 23 supported on the support means. The spring 24 is supported on the support means Wc1, Wc2 such that it continues to try to move the support unit towards an extended position, i.e. a position where the support unit tends to be when it is supporting the support means and structure, the main purpose of its support being to be secured to the support means and structure. The supporting arrangement according to fig. 8a-8b is preferably used in the solution of fig. 1-7 for supporting a supporting platform and/or a lifting device on a building and/or on a supporting element P of a supporting structure P. The solution of the support means provided may form an invention independent of the other solutions of the present application. This solution is suitable for e.g. locking the machine room platform/support platform or the hoisting beams of a jump-lift to the elevator shaft so that they cannot move downwards. In this case, instead of the part P of fig. 8a-b, any structure with an upwardly facing support surface that can provide sufficient support, regardless of the elevator hoistway, is possible. The supporting unit 8, for which in this case it is fixed to the structure (supporting platform, hoisting equipment, machine room platform, hoisting beam) in a bendable manner, is intended to be supported in place by this solution. The support surface 28 may be arranged on any fixed structure, regardless of the elevator hoistway.

The elevator shaft is preferably formed inside a building and is vertical. The guide rails (not shown) of the elevator car in the part of the elevator hoistway below the supporting platform have been fixed to the walls of the elevator hoistway. Above the support structure, where the elevator shaft is not completed, the work of installing the car guide rails can be performed from the working platform 15. When the building is completed, the elevator in construction will form the final elevator of the building, preferably a passenger or goods elevator.

The lifting device HC does not necessarily have to be a hydraulic hoist but it may instead be, for example, pneumatic. The inventive concept supported on an elongated support element can also be used to advantage in a solution where the rotor of the linear motor is connected to a support platform and where the elongated support element forms a stator for the aforementioned rotor, or vice versa.

The support structure 6 comprises, preferably, but not necessarily, more than one support element P and means Wb for fixing them to the building and lifting devices HC. The support elements P of the support structure 6 may be connected to each other, but they may also be separated for movement.

In this application the term hoisting rope refers to a hoisting rope comprising a rope, a hinge, a belt or some other counterpart. It is obvious to the person skilled in the art that the invention is not limited to the embodiments described above, in which the invention has been described using some examples, but that many variations and different embodiments of the invention are possible within the framework of the inventive concept defined by the claims presented below.

Thus, for example, it is obvious that the support unit can rest on the support element in other ways than by being pushed into the aperture, for example by being captured using the one-way wedging principle so that the wedging allows the support means to move in one direction only, for example by means of the prior art principle known from safety means. It is also obvious that the support platform can support the elevator car via the diverting pulleys and/or the hoisting machine on the support platform. When the hoisting machine is on the supporting platform, the supporting platform forms a machine room platform. It is also obvious that although the support elements provided are preferably separate parts from the car guide rails, the car guide rails can alternatively be utilized in a method instead of them, if desired.

Claims (21)

1. Method for constructing an elevator, more particularly an elevator for use during the construction of a building, in which method the range of motion of the elevator car (2) of the elevator in the elevator hoistway (1) is changed in steps to extend higher in the elevator hoistway (1) by means of a multi-stage lifting of a support platform (3) of the elevator car (2), and in which method the support platform (3) is lifted higher in the elevator hoistway by means of a hoisting device (HC, Wc2), and the supporting force required for the lifting is taken from the building via a support structure (6), characterized in that, in the method, the support platform (3) is moved in the longitudinal direction of the elevator hoistway (1) while being supported on a support structure (6) which is immovably supported on the building such that the position for taking support from the support structure (6) follows the lifting of the support platform And rises to move upward.

2. Method according to any of the preceding claims, characterized in that the support structure (6) is a rigid structure, which support structure together with the support element (P) is supported immovably at the desired location of the building at least during lifting.

3. Method according to any of the preceding claims, characterized in that during lifting, the lifting of the support platform (3) is guided by means of the shape of the support elements (P) of the support structure (6).

4. Method according to any of the preceding claims, characterized in that the lifting is performed in a plurality of steps by moving the position where support is obtained from the support element (P) of the support structure (6) upwards in a plurality of steps.

5. Method according to any of the preceding claims, characterized in that after the lift the support platform (3) is supported in its position so that it does not move relative to the building and the support structure (6) moves upwards in the elevator hoistway (1).

6. Method according to any of the preceding claims, characterized in that the support element (P) is an elongated beam, preferably a metal beam, in the longitudinal direction of the elevator hoistway (1).

7. Method according to any of the preceding claims, characterized in that the support element (P) is an elongated-profile beam in the longitudinal direction of the elevator hoistway (1).

8. Method according to any one of the preceding claims, characterized in that the support element (P) is an H-shaped beam.

9. Method according to any of the preceding claims, characterized in that the support structure is suspended from a second support structure (14) and a second hoisting device (21, 22) located above the support structure (6) in the elevator hoistway, and that the support structure (6) is moved upwards in the elevator hoistway (1) by means of the second support structure (14) and the second hoisting device (21, 22).

10. A method according to any one of the preceding claims, wherein the length of one lift is substantially the height of one floor.

11. Method according to any of the preceding claims, characterized in that in the method at least the following phases are performed:

A) the support platform (3) is lifted in relation to a support structure (6), wherein the support structure (6) is fixed to the elevator hoistway (1) while being supported on a support arrangement (Wc2), which support arrangement (Wc2) is supported at a first height on support elements (P) of the support structure (6),

B) e.g. by supporting a support platform on an immovable structure of the building, e.g. on the support structure (6) or on the elevator shaft, which support platform is locked so as to be immovable relative to the elevator shaft,

C) the supporting device (Wc2) moving upwards and being supported on the supporting element (P) at a second height,

D) the locking of the support platform is released and,

E) the supporting platform (3) being lifted by means of a lifting device (HC) relative to the supporting elements (P), which are immovably fixed to the elevator hoistway while being supported on supporting means (Wc2) that have been moved to the second level,

F) e.g. by supporting the support platform on a non-movable structure of the building, e.g. on the elevator shaft or on some other structure of the building, the support platform is locked so as to be non-movable relative to the elevator shaft (1),

G) the movable support structure is lifted upwards in the elevator hoistway, and the support structure is fixed to a non-movable structure, e.g. to the elevator hoistway (1).

12. Method according to any of the preceding claims, characterized in that between jump-lifts second hoisting means (21, 22) are used to move a working platform (15) in the elevator hoistway during construction between the second support structure (14) and the support structure (6).

13. An elevator arrangement, more particularly in a construction-time elevator, comprising:

an elevator shaft (1),

an elevator cage (2),

a hoisting rope (11) for moving an elevator car (2) in the elevator hoistway,

a support platform (3) for supporting the elevator car below the support platform via hoisting ropes (11),

means (30) for moving the hoisting ropes (11), such as a motor and a traction sheave,

preferably a movable support structure (6) in the elevator hoistway (1),

a hoisting device (HC, Wc2) arranged to hoist the support platform (3) upwards in the elevator hoistway (1) while being supported by the support structure,

characterized in that the support structure (6) comprises an elongated support element (P) in the longitudinal direction of the elevator hoistway (1), and a hoisting device (HC, Wc2) arranged to lean against the support element (P) such that the position where support is obtained from the support element (P) has to be moved in the longitudinal direction of the support element (P).

14. Elevator arrangement according to any of the preceding claims, characterized in that the support structure (6) is a rigid structure, the support elements (P) of which are preferably H-beams, which support structure (6) together with the support elements (P) is supported immovably at least during the hoisting at the desired location of the building.

15. Elevator arrangement according to any of the preceding claims, characterized in that the support element extends in the longitudinal direction of the elevator hoistway at least one floor-to-floor distance, preferably a slightly greater distance, most preferably about 4 meters.

16. Elevator arrangement according to any of the preceding claims, characterized in that the support platform (3) comprises a support means (Wc2) which is placed to rest on the support element (P) so that the position where support is obtained from the support element (P) has to be moved in the longitudinal direction of the support element (P).

17. Elevator arrangement according to any of the preceding claims, characterized in that it comprises a second support structure (14) in the elevator hoistway above the support structure (6), and a second hoisting device (21) for hoisting the support structure (6) in the elevator hoistway while supported on this second support structure (14), the second support structure (14) and second hoisting device (21) preferably also being arranged to move the working platform (15) in the elevator hoistway under construction (1) in the part of the elevator hoistway (1) between the second support structure (14) and the support structure (6).

18. Elevator arrangement according to any of the preceding claims, characterized in that the support element (P) is a guide rail profiled, preferably an H-shaped beam, by which the support platform (3) is arranged to be lifted by being guided.

19. Elevator arrangement according to any of the preceding claims, characterized in that the support arrangement (Wc1, Wc2) for supporting the hoisting device (HC) and/or the support platform (3) on the support element comprises a movable support unit (8) which is movable to extend in the vertical projection of the cross-sectional structure of the support element (P) and by being supported by which the support platform (3) and/or the hoisting device (12) can rest supported by the support element (P), and in that the support element (P) comprises a number of apertures (H) for this purpose in which the support unit (8) can be moved and supported.

20. Elevator arrangement according to any of the preceding claims, characterized in that the supporting arrangement (Wc1, Wc2) is connected to the support platform (3) and to a hoisting device (HC) for supporting the support platform (3) and/or a hoisting device (HC) on the support element (P), which supporting arrangement (Wc1, Wc2) comprises a movable support unit (8) for supporting on the support element (P), and that the support unit (8) is arranged to allow upward-directed movement and to prevent downward-directed movement of the hoisting device (HC) and/or the support platform (3).

21. Elevator arrangement according to any of the preceding claims, characterized in that the lifting platform (3) is movable between an extended position, in which the support platform rests on the building in the vertical direction, and a retracted position, in which the support platform does not rest on the building in the vertical direction.