EP4172096A1 - Procédé pour construire un système d'ascenseur, et système d'ascenseur apte à mettre en oeuvre le procédé - Google Patents

Procédé pour construire un système d'ascenseur, et système d'ascenseur apte à mettre en oeuvre le procédé

Info

Publication number
EP4172096A1
EP4172096A1 EP21735271.5A EP21735271A EP4172096A1 EP 4172096 A1 EP4172096 A1 EP 4172096A1 EP 21735271 A EP21735271 A EP 21735271A EP 4172096 A1 EP4172096 A1 EP 4172096A1
Authority
EP
European Patent Office
Prior art keywords
rope
lifting platform
lifting
platform
pulley
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21735271.5A
Other languages
German (de)
English (en)
Inventor
Gabriele BIZZOZERO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inventio AG
Original Assignee
Inventio AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inventio AG filed Critical Inventio AG
Publication of EP4172096A1 publication Critical patent/EP4172096A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B19/00—Mining-hoist operation
    • B66B19/04—Installing or removing mining-hoist cars, cages, or skips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B19/00—Mining-hoist operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B19/00—Mining-hoist operation
    • B66B19/02—Installing or exchanging ropes or cables

Definitions

  • the invention relates on the one hand to a method for erecting an elevator system in a building in its construction phase, in which method a usable lifting height of the elevator system is adapted to an increasing height of the building, and on the other hand to an elevator system suitable for carrying out the method.
  • Such an elevator system usually comprises a machine platform that is movable along an elevator shaft and can be temporarily locked therein, with an elevator drive machine, as well as at least one elevator car suspended from the machine platform via suspension means and driven by the elevator drive machine.
  • the usable lifting height of the elevator car is adapted from time to time to an increasing height of the building, in that at least the machine platform carrying the elevator car is raised to a higher level with the help of a lifting platform temporarily fixed above the machine platform.
  • Such an elevator system or such a method is known from WO2010 / 100319, in which an elevator car and a counterweight are suspended via flexible traction means on a machine platform that can be raised and temporarily fixed in the elevator shaft.
  • the traction means are guided over a traction sheave of an elevator drive machine, so that the traction means are driven by the traction sheave and thus the elevator car and the counterweight can be moved up and down in opposite directions in the elevator shaft. From time to time the machine platform is raised to a higher level corresponding to the increasing building height and fixed there in the elevator shaft.
  • the elevator system can, on the one hand, transport people and material to the topmost area of the building currently in its construction phase, and, on the other hand, that the users from lower, already developed floors, as well as their furniture, for example, can be transported through the elevator system .
  • a lifting platform that can also be raised and temporarily fixed in the elevator shaft is installed above the machine platform.
  • a group of pulleys is attached to both the lifting platform and the machine platform, with the pulley group between the Lifting platform and the pulley group of the machine platform a multiple reeved lifting rope is arranged so that the machine platform can be raised with the help of two cable pulling devices mounted on the machine platform.
  • the lifting platform Before each lifting of the machine platform, the lifting platform must be brought to a higher level in the elevator shaft. This is done with the help of a hoist that is attached to a further supporting structure that can be displaced and fixed in the elevator shaft and that can raise the lifting platform using a hoisting rope.
  • the risk of the machine platform falling is usually reduced by equipping it with safety brakes that act on guide rails of the elevator car on which the machine platform is also guided. If a maximum permitted downward speed is exceeded in any situation, the safety brakes are activated and the machine platform is stopped by the braking effect between the guide rails and the safety brakes.
  • the present invention is based on the object of creating a method and an elevator system of the type described above suitable for carrying out the method, in which the risk of the lifting platform falling and thus also the risk of accidents for the assembly personnel is minimized when the lifting platform is raised.
  • the solution to the problem consists on the one hand in a method for setting up an elevator system in an elevator shaft of a building which is in its construction phase, in which method a usable lifting height of the elevator system is adapted to an increasing height of the building, with a temporarily liftable and temporary lift shaft in the elevator shaft lockable machine platform is installed on which an elevator drive machine with a traction sheave is arranged, an elevator car and a counterweight being suspended from the machine platform via suspension means, the suspension means being guided at least over the traction sheave of the elevator drive machine, so that the elevator car and the counterweight through the traction sheave via the support means along guide rails in the elevator shaft up and down in opposite directions to one another can be moved, with a liftable and temporarily lockable lifting platform installed in the elevator shaft above the machine platform, with which the machine platform - usually with the elevator car coupled to it - is raised when the usable lifting height of the elevator car is to be adapted to a current height of the elevator shaft, with before the machine platform is raised, the lifting platform is
  • Sections of the safety rope arranged according to the principle of a pulley block are referred to as load-bearing rope sections, which after activation of the rope catching device or its rope stopping device transfer the same proportions of the total braking force occurring during the catching process between the rope pulley support and the lifting platform.
  • a commercially available device (such as a "Bloc-Stop”) can be used as a rope stop device.
  • the load-bearing rope sections of the safety rope are arranged in such a way that when the rope safety device is activated, the line of action of the resultant of the rope forces of all load-bearing rope sections essentially passes through the center of gravity of the lifting platform.
  • the entire safety rope of the rope safety device is arranged in such a way that it runs completely outside a free space extending in the upward direction above the center of gravity of the lifting platform, which free space allows a crane hook of the construction crane to be lowered to a space above the center of gravity Coupling element on the lifting platform allows.
  • Such an arrangement of the safety rope enables an unimpeded vertical lowering of a crane rope to the center of gravity of the lifting platform and its coupling to a coupling element present on the lifting platform in or above its center of gravity.
  • the free space is dimensioned so that a cylinder with a diameter of at least 0.4 m extending upwards from the center of gravity of the lifting platform can be arranged in the free space.
  • the rope pulley support is attached to a protective platform that can be vertically displaced and fixed above the lifting platform in the elevator shaft.
  • the protective platform is provided with a passage opening arranged in the area of the free space explained above, through which the crane hook is lowered to the coupling element on the lifting platform.
  • the rope pulley support is equipped with four vertically and four horizontally arranged deflection pulleys.
  • the definition of the installation position of the deflection pulleys - vertical or horizontal - refers to the Uage of the pulley plane.
  • the safety rope is guided through these pulleys and by at least one support roller of a support roller arrangement coupled to the lifting platform in such a way that the safety rope forms four load-bearing rope sections and runs completely outside of the free space.
  • This embodiment has the advantage that all coupling points present between the rope safety device and the lifting platform are close to a reference plane extending vertically through the center of gravity of the lifting platform, so that more space is available on both sides of the reference plane for assembly personnel and auxiliary equipment.
  • the rope pulley support is equipped with only four vertically arranged deflecting pulleys, the safety rope being guided through these deflecting pulleys and by at least one supporting roller of a supporting roller arrangement coupled to the lifting platform in such a way that the safety rope forms four load-bearing rope sections and is completely outside of the free space runs.
  • the safety rope - with reference to a reference plane extending vertically through the center of gravity of the lifting platform - is vertically upwards from a safety rope fixed point on the lifting platform to a vertical first deflection pulley arranged at right angles to the reference plane in the pulley support , after the first deflection roller at right angles to the reference plane and away from it to a horizontally lying second deflection roller, after the second deflection roller horizontally and parallel to the vertical reference plane to a horizontally lying third deflection roller, after the third deflection roller at right angles to the reference plane and to this one vertically standing and arranged at right angles to the reference plane fourth deflecting roller, after the fourth deflecting roller vertically downwards to a supporting roller arrangement connected to the lifting platform and comprising at least one supporting roller, the
  • the safety rope - with reference to a reference plane extending vertically above the lifting platform through its center of gravity - is vertically upward from a safety rope fixed point on the lifting platform to a vertically positioned first deflection pulley of the Rope roller supports, after the first deflection roller horizontally and parallel to the reference plane to a vertically standing second deflection roller arranged parallel to the reference plane, after the second deflection roller vertically downwards to a support roller arrangement connected to the lifting platform with at least one vertically standing support roller arranged transversely to the reference plane, according to the support roller assembly vertically upwards to a vertically standing and Third pulley support arranged parallel to the reference plane, after the third pulley horizontally and parallel to the vertical reference plane to a vertically standing and parallel to the reference plane, the first pulley mirror-symmetrically opposite to the reference plane, and after the fourth pulley vertically downwards to the Lifting platform attached rope stop device.
  • the lifting platform is equipped with a lifting device in which a lifting rope is attached within the free space above the lifting platform from a lifting rope holder on the lifting platform up to a lifting rope deflection pulley of a lifting rope fixed at least temporarily in the free space. Deflection device and is guided from a lifting rope deflection pulley of the lifting rope deflection device down to a cable device arranged on the lifting platform.
  • the term “cable pulling device” is to be understood here as any device that is suitable for pulling a cable - in particular a wire cable - and for moving this against resistance in the direction of its longitudinal axis.
  • the cable pull device can be driven manually, preferably electrically.
  • This embodiment variant has the advantage that the lifting platform and thus also the machine platform can also be raised when the construction crane is not available for a long period of time.
  • the lifting rope deflection device comprising at least one lifting rope deflection pulley is arranged in the area of the free space on the protective platform for lifting the lifting platform with the aid of the lifting device, and the lifting rope deflection device is used for lifting the lifting platform with the aid of the construction crane removed from the area of the free space.
  • This design variant has the advantage, on the one hand, that the fastening of the lifting rope deflection device in the elevator shaft can be implemented easily and inexpensively, and on the other hand, the temporary arrangement of the lifting rope deflection device in the mentioned free space, which is provided in this embodiment variant, enables the resultant of all the load-bearing visual forces of the lifting rope to be Lifting device through the center of gravity of the Lifting platform goes.
  • Another aspect of the invention relates to an elevator system in an elevator shaft of a building in its construction phase, in which elevator system a usable lifting height of the elevator system can be adapted to an increasing height of the building.
  • This elevator system is preferably designed in such a way that it is suitable for carrying out the method described above.
  • the elevator system comprises a machine platform installed in the elevator shaft, which can be raised and temporarily locked along car guide rails, an elevator drive machine with a traction sheave being arranged on the machine platform.
  • the elevator system further comprises an elevator car and a counterweight, which are suspended from the machine platform via suspension elements, the suspension elements being guided at least over the traction sheave of the elevator drive machine, so that the elevator car and the counterweight rotate in opposite directions through the traction sheave via the suspension elements along guide rails in the elevator shaft can be moved up and down to each other.
  • the elevator system further comprises a lifting platform installed above the machine platform in the elevator shaft, which can be raised and temporarily locked, the machine platform with the elevator car or the counterweight being able to be raised with the help of the lifting platform when the usable lifting height of the elevator car is adapted to a current height of the elevator shaft shall be.
  • the lifting platform is designed in such a way that it can be raised to a higher level by means of a construction crane or other lifting device before the machine platform is lifted.
  • the lifting platform is equipped with a rope catching device which comprises a safety rope which is arranged or can be arranged between the lifting platform and a rope pulley support fixed above the lifting platform in the elevator shaft according to the principle of a block and tackle with at least two load-bearing rope sections, with a first load-bearing rope section of the safety rope is fixed or fixable on the lifting platform or stationary above the lifting platform and a last load-bearing rope section is guided or guided through a rope stop device attached to the lifting platform, by means of which the last load-bearing rope section can be blocked and thus a further lowering of the lifting platform can be prevented after the speed of the last load-bearing rope section has exceeded a specified limit compared to the rope stop device.
  • a rope catching device which comprises a safety rope which is arranged or can be arranged between the lifting platform and a rope pulley support fixed above the lifting platform in the elevator shaft according to the principle of a block and tackle with at least two load-bearing rope sections, with a first
  • the elevator system can comprise a protective platform which can be vertically displaced and fixed in the elevator shaft above the lifting platform and to which the rope pulley support is attached.
  • the protective platform can be provided with a passage opening through which a crane hook can be lowered to a coupling element on the lifting platform.
  • the pulley support can be equipped with four vertically and four horizontally arranged deflection pulleys, the safety rope being guided through these deflection pulleys and by at least one support roller of a support roller arrangement coupled to the lifting platform in such a way that the safety rope forms four load-bearing rope sections and runs completely outside of a free space which lowering the crane hook of a construction crane to the coupling element is possible.
  • the pulley support can only be equipped with four vertically arranged deflection pulleys, the safety rope being guided through these deflection pulleys and by at least one support roller of a support roller arrangement coupled to the lifting platform in such a way that the safety rope forms four load-bearing rope sections and runs completely outside of the above-mentioned free space.
  • the lifting platform can be equipped with a lifting device comprising lifting rope, lifting rope holder, lifting rope deflection pulley and rope pulling device, the lifting rope within said free space above the lifting platform from the lifting rope holder on the lifting platform upwards to a lifting rope deflection pulley of the temporarily in Free space fixed lifting rope deflection device and is guided from the lifting rope deflection pulley down to the cable pulling device arranged on the lifting platform.
  • a lifting device comprising lifting rope, lifting rope holder, lifting rope deflection pulley and rope pulling device, the lifting rope within said free space above the lifting platform from the lifting rope holder on the lifting platform upwards to a lifting rope deflection pulley of the temporarily in Free space fixed lifting rope deflection device and is guided from the lifting rope deflection pulley down to the cable pulling device arranged on the lifting platform.
  • FIG. 1 shows a cross section through an elevator shaft with an elevator system, the usable lifting height of which can be adapted to an increasing height of the building, the elevator system having a machine platform, an elevator car hanging on the machine platform with a counterweight and one for lifting the Includes lifting platform serving machine platform, the lifting platform being equipped with a rope catching device and a lifting device which interact with a protective platform. Furthermore, a construction crane is indicated, which serves as an alternative to the lifting device for lifting the lifting platform.
  • Fig. 2 is a side view of part of the elevator system according to FIG. 1 with a section through this part, wherein the lifting platform serving to raise the machine platform is shown, which is equipped with the cooperating with the protective platform first variant of the rope catching device and only through the construction crane can be raised.
  • Fig. 3 is a side view of part of the elevator system according to FIG. 1 with a section through this part, the lifting platform used to raise the machine platform is shown, the lifting device with the first variant of the rope catching device and also cooperating with the protective platform equipped and can be lifted alternatively with the lifting device or by the construction crane.
  • FIG. 4 shows a side view of part of the elevator system according to FIG. 1 with a section through this part, the lifting platform used to raise the machine platform being shown, which is equipped with a second variant of the rope catching device and a lifting device that also works together with the protective platform equipped and can be lifted alternatively with the lifting device or by the construction crane.
  • the elevator system 1 shows an elevator system 1 according to the invention and suitable for carrying out the method according to the invention, which is installed in an elevator shaft 2 of a building which is in its construction phase.
  • the elevator system 1 is designed in such a way that the usable lifting height of an elevator car 3 of the elevator system 1 can be adapted from time to time to an increasing height of the building or of the elevator shaft 2.
  • the elevator installation 1 firstly comprises the elevator car 3 and a counterweight 4 which can be moved vertically along car guide rails 6 or counterweight guide rails 7 in the elevator shaft 2.
  • the elevator installation 1 comprises a Machine platform 10, on which an elevator drive machine 11 with a traction sheave 12 and a deflection roller 13 are mounted, the elevator car 3 and the counterweight 4 being suspended from the machine platform in such a way that support means 15 are guided at least over the traction sheave 12, so that the elevator car 3 and the counterweight 4 can be moved up and down in opposite directions to one another by the traction sheave 12 via the support means 15 along car guide rails 6 or counterweight guide rails 7 in the elevator shaft 2.
  • the machine platform 10 is guided on the Kabinenlay approximate rails 6 arranged in the elevator shaft 2, along this cabin guide rails 6 can be raised in the elevator shaft 2 and temporarily locked therein via horizontally extendable supports.
  • the elevator installation 1 comprises a lifting platform 17 which is arranged above the machine platform 10 and which can be moved and locked vertically in the elevator shaft 2.
  • the lifting platform 17 is used to lift the machine platform 10, which usually weighs several thousand kilograms. It is dimensioned accordingly and equipped with a sufficiently strong lifting mechanism 18.
  • the lifting platform 17 itself must be raised to a higher level and fixed there, the lifting being carried out with the aid of a construction crane 40 or another lifting device 35 explained in more detail in connection with FIG. Unlike the machine platform 10, however, the lifting platform 17 is not guided on guide rails, since the lifting platform has to be temporarily locked in areas of the elevator shaft 2 in which no guide rails have yet been mounted.
  • the cabin guide rails 6 as well as the counterweight guide rails 7 are extended upwards to the next higher locking position of the machine platform before each lifting of the machine platform 10, which is preferably accomplished from a mounting platform (not shown here) that can be installed between the machine platform 10 and the lifting platform 17.
  • the elevator system 1 comprises a protective platform 20 which can be fixed in the elevator shaft 2 or on the elevator shaft and which is absolutely necessary to protect the assembly personnel and the elevator system from falling objects.
  • the protective platform 20 also serves as a support for a rope pulley support 26 of a rope catching device 25.1, which serves as a fall protection for the lifting platform 17.
  • a safety rope fixed point 29 Also shown in FIG. 1 as components of the rope safety device are a safety rope fixed point 29, a rope stop device 30 and a four Safety rope 31 comprising load-bearing rope sections can be seen. Details and mode of operation of the rope safety device 25.1 are described in more detail below in connection with FIG. 2.
  • the protective platform 20 can also form a support for a lifting rope deflection device 36 of a lifting device 35, which is used to raise the lifting platform 17.
  • the lifting device 35 comprises a cable pulling device 37 mounted on the lifting platform 17, which cooperates with a lifting cable 38 and the lifting cable deflection device 36 so that the lifting platform 17 can be lifted with the lifting device without the use of a construction crane.
  • a construction crane 40 is indicated, with the help of which the lifting platform 17 can be raised with less effort than with the lifting device 35 if the construction crane is just available when the lifting platform is to be lifted .
  • a suspension element storage device 50 is shown in a niche in the shaft wall of the elevator shaft 2. This serves to keep the additional suspension element length required when the usable lifting height of the elevator car 3 is increased and to deliver it when necessary.
  • the elevator installation 1 is adapted to a newly available greater height of the elevator shaft 2 essentially in that - if necessary - the protective platform 20 is first raised to a higher level. This is usually carried out with the aid of a construction crane 50 or a hoist suspended from, for example, a temporarily installed cross member. The lifting platform 17 is then raised with the construction crane or the lifting device 35 and fixed at a height in the elevator shaft 2 that enables the machine platform 10 to be moved to the planned new level with the lifting mechanism 18 of the lifting platform and to lock the machine platform there.
  • the elevator car 3 Before the machine platform 10 is raised, the counterweight 4 is positioned on its lower buffers, the elevator car 3 is coupled to the machine platform 10, and the fixation of the suspension elements of the elevator car and the counterweight at the suspension element fixed point 52 on the machine platform 10 is released.
  • the for the The amount of suspension elements required for the extension of the suspension elements 15 is automatically deducted from the suspension element storage device 50.
  • the suspension elements 15 After completion of the lifting process, the suspension elements 15 are fixed again at the suspension element fixed point 52, and after some adjustment work has been carried out, the elevator installation 1 is ready for operation again with a usable lifting height of the elevator car 3 adapted to the current building height.
  • FIG. 2 shows on the left side a side view of part of the elevator installation according to FIG. 1 in the uppermost area of the elevator shaft 2, and on the right side a section A-A through this area.
  • the lifting platform is equipped with a rope catching device 25.1 serving as a fall protection for the lifting platform in a first embodiment.
  • the rope catching device 25.1 comprises the rope pulley support 26, in which a group of four vertically and four horizontally arranged rope pulleys 27.1-27.8 is arranged.
  • the definition of the installation position - vertical or horizontal - refers to the position of the pulley plane.
  • the rope pulley support 26 with the rope pulleys is fixed to the protective platform 20, which has been positioned at the latest when the usable lifting height of the elevator system 1 begins to be adjusted to a currently available height of the building or elevator shaft 2 in or on the currently uppermost area of the elevator shaft.
  • the rope catching device 25.1 comprises the safety rope fixed point 29 attached to the lifting platform 17, a support roller arrangement 32 coupled to the lifting platform, the rope stop device 30 and the safety rope 31 comprising four load-bearing rope sections 31.1-31.4.
  • the safety rope is arranged between the lifting platform 17 and the rope pulley support 26 fixed above the lifting platform in the elevator shaft according to the principle of a block and tackle with the four supporting rope sections 31.1-31.4, with a first supporting rope section 31.1 of the safety rope 31 is fixed to the safety rope fixed point 29 attached to the lifting platform 17, and a last load-bearing rope section 31.4 is guided through a rope stop device 30 attached to the lifting platform.
  • the arrangement of the safety rope 31 of the rope catching device 25.1 according to FIG. 2 enables the entire safety rope to run outside a free space extending in the upward direction above the center of gravity S of the lifting platform 17.
  • a crane hook of the construction crane can be lowered through this free space to a coupling element (42) attached to the lifting platform above the center of gravity.
  • the safety rope 31 is arranged so that a free space is created in which a cylinder extending upward from the center of gravity S of the lifting platform 17 and having a diameter of at least 0.4 m could be arranged.
  • the protective platform on which the cable pulley support 26 is fixed is provided with a closable passage opening 21.
  • the lifting platform 17 is shown without the lifting device 35 shown in Fig. 1, either because the lifting device was dismantled in order to enable the coupling of a crane rope to the lifting platform for lifting the lifting platform 17, or because there is no lifting device at all , since it is intended to lift the lifting platform exclusively with the construction crane 40.
  • FIG. 3 shows, like FIG. 2, on the left side a side view of part of the elevator installation 1 according to FIG. 1 in the currently uppermost area of the elevator shaft 2, and on the right side a section AA through this area.
  • the lifting platform 17 is equipped with the rope catching device 25.1 according to the first embodiment shown in FIG.
  • FIG. 3 shows the elevator system with the lifting device 35 indicated in FIG. 1, which is used to raise the lifting platform 17, if none Construction crane is available, or if the construction crane is not available within a useful time at the time of an adjustment of the usable lifting height of the elevator system.
  • the lifting rope deflection device which comprises at least one lifting rope deflection pulley 36.1, is advantageously fixed on the protective platform 20 described in connection with FIG. 1 in the area of the passage opening 21 present therein.
  • a first load-bearing section of the lifting rope 38 is fixed to the lifting platform 17 by means of the lifting rope holder 39.
  • the hoisting rope is guided vertically upwards to the at least one hoisting rope deflection pulley 36.1 of the hoisting rope deflecting device 36, wraps around it by 180 degrees and then runs as the second load-bearing section of the lifting rope 38 down to the cable pulling device attached to the lifting platform 17 37, through which this is passed.
  • the two load-bearing sections of the lifting rope 38 extend within the free space described in connection with FIG. 2, bypassed by the sections of the safety rope 31 and extending upwards from the center of gravity S of the lifting platform.
  • the cable device 37 is advantageously electrically driven and comprises, for example, driven friction rollers that are pressed against the lifting cable, with which the lifting cable 38 is pulled through the cable device.
  • the lifting platform 17 is raised by the interaction of the cable pulling device 37, lifting cable 38, lifting cable deflection device 36 and lifting cable holder 39.
  • FIG. 4 shows, like FIGS. 2 and 3, on the left side a side view of part of the elevator installation 1 according to FIG. 1 in the currently uppermost area of the elevator shaft 2, and on the right side a section AA through this area.
  • the lifting platform 17 is equipped with a lifting device 35 - as already described in connection with FIG. 3.
  • the elevator system according to FIG. 4 is equipped with a rope catching device 25.2 according to a second embodiment.
  • the cable pulley support 26 of the rope catching device 25.2 equipped with only four vertically arranged deflection pulleys 28.1-28.4, the safety rope 31 being guided by these deflection pulleys and by at least one support roller 33 of a support roller arrangement 32 coupled to the lifting platform 17 in such a way that the safety rope has four load-bearing rope sections 31.1-31.4 forms and runs along its entire length outside the space required to lower a crane hook.
  • the rope catching device 25.2 for the lifting platform 17 shown in FIG. 4 also achieves the task of ensuring that, on the one hand, during a catching process, the resultant of the catching forces occurring in all load-bearing rope sections 31.1-31.4 passes through the center of gravity S of the lifting platform 17 , and that on the other hand a sufficiently large free space extending upwards from the center of gravity S can be realized.

Landscapes

  • Types And Forms Of Lifts (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

L'invention concerne un procédé pour construire un système d'ascenseur (1) dans un bâtiment qui est en train d'être construit, dans lequel procédé une hauteur d'élévation utilisable du système est adaptée à une hauteur croissante du bâtiment, et dans lequel procédé : - dans la cage d'ascenseur (2), une plateforme de machine pouvant être élevée et temporairement verrouillée (10) est installée, sur laquelle est disposée une machine d'entraînement d'ascenseur (11) ayant un entraînement de traction (12), - une cabine d'ascenseur (3) et un contrepoids (4) sont suspendus à partir de la plateforme de machine (10) par l'intermédiaire de moyens de suspension (15), de telle sorte que la cabine d'ascenseur (3) et le contrepoids (4) peuvent être déplacés vers le haut et vers le bas le long de rails de guidage dans la cage d'ascenseur (2) à l'aide de l'entraînement de traction (12) par l'intermédiaire des moyens de suspension (15), - au-dessus de la plateforme de machine (10) est installée une plateforme d'élévation (17) qui peut être élevée et temporairement verrouillée dans la cage d'ascenseur (2), et à l'aide de laquelle la plateforme de machine (10) est élevée avec la cabine d'ascenseur (3) ou le contrepoids (4) quand la hauteur d'élévation utilisable de la cabine d'ascenseur est conçue de façon à être adaptée à une hauteur actuelle de la cage d'ascenseur (2), et dans lequel : - avant l'élévation de la plateforme de machine (10), la plateforme d'élévation (17) est élevée à un niveau plus élevé à l'aide d'une grue de construction (40) ou d'un autre dispositif d'élévation (35), et dans lequel la plateforme d'élévation (17) comporte un dispositif de saisie à câble (25.1) qui comprend un câble de sécurité (31), dont au moins deux sections de câble de portée de charge sont agencées, selon le principe du câble Bowden, entre la plateforme d'élévation (17) et un support de poulie de câble (26) fixé au-dessus de la plateforme d'élévation dans la cage d'ascenseur (2), une première section de câble de portée de charge du câble de sécurité (31) étant fixée à la plateforme d'élévation (17) ou étant fixée d'une manière fixe au-dessus de la plateforme d'élévation, et une dernière section de câble de portée de charge étant guidée par l'intermédiaire d'un appareil d'arrêt de câble (30) qui est fixé à la plateforme d'élévation (17) et à l'aide duquel la dernière section de câble de portée de charge est bloquée et un abaissement supplémentaire de la plateforme d'élévation (17) est par conséquent empêché après que la vitesse de la dernière section de câble de portée de charge a dépassé une limite spécifiée par rapport à l'appareil d'arrêt de câble (30).
EP21735271.5A 2020-06-26 2021-06-23 Procédé pour construire un système d'ascenseur, et système d'ascenseur apte à mettre en oeuvre le procédé Pending EP4172096A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20182623 2020-06-26
PCT/EP2021/067070 WO2021259969A1 (fr) 2020-06-26 2021-06-23 Procédé pour construire un système d'ascenseur, et système d'ascenseur apte à mettre en œuvre le procédé

Publications (1)

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EP4172096A1 true EP4172096A1 (fr) 2023-05-03

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EP21735271.5A Pending EP4172096A1 (fr) 2020-06-26 2021-06-23 Procédé pour construire un système d'ascenseur, et système d'ascenseur apte à mettre en oeuvre le procédé

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DE102023102305A1 (de) 2023-01-31 2024-04-11 Tk Elevator Innovation And Operations Gmbh Hebeanordnung und Verfahren zum Bewegen einer Maschinenplattform oder einer Aufzuganlagen-Maschinenraumeinheit

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FI20090085L (fi) 2009-03-06 2010-09-30 Kone Corp Hissijärjestely ja menetelmä
EP2636629B1 (fr) * 2012-03-06 2015-05-06 KONE Corporation Procédé et agencement d'ascenseur
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