EP3150538A1 - Agencement de réduction du balancement latéral des câbles dans un ascenseur, basée sur le magnétisme - Google Patents

Agencement de réduction du balancement latéral des câbles dans un ascenseur, basée sur le magnétisme Download PDF

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Publication number
EP3150538A1
EP3150538A1 EP15187705.7A EP15187705A EP3150538A1 EP 3150538 A1 EP3150538 A1 EP 3150538A1 EP 15187705 A EP15187705 A EP 15187705A EP 3150538 A1 EP3150538 A1 EP 3150538A1
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EP
European Patent Office
Prior art keywords
rope
arrangement
hoistway
attached
magnet
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.)
Withdrawn
Application number
EP15187705.7A
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German (de)
English (en)
Inventor
André WEIBEL
Martin Matt
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
Priority to EP15187705.7A priority Critical patent/EP3150538A1/fr
Publication of EP3150538A1 publication Critical patent/EP3150538A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/064—Power supply or signal cables

Definitions

  • the present invention relates to an elevator system comprising a loose rope-like means.
  • the present invention relates to a rope sway reducing arrangement for hindering a lateral sway of such elongate rope-like means in an elevator hoistway.
  • Elevators are generally used for transporting passengers and/or goods within a building, typically in a vertical direction.
  • a movable component such as an elevator car or a counterweight is displaced within a hoistway.
  • the car and/or the counterweight are suspended by a suspension traction means (STM) such as one or more ropes or belts which may be driven by a driving means such as an electric engine driving a traction sheave.
  • STM suspension traction means
  • driving means such as an electric engine driving a traction sheave.
  • the elevator system may comprises additional rope-like means which typically do not have to carry substantial weight, except for their own weight.
  • additional rope-like means may be used for example for supplying electric energy to the movable elevator car and/or for transmitting signals between the movable elevator car and for example a component such as an elevator control being fixedly installed within the building comprising the elevator hoistway.
  • a component such as an elevator control being fixedly installed within the building comprising the elevator hoistway.
  • one end of such rope-like means is attached to the movable component whereas the other end of the rope-like means is attached to a fixed position within the hoistway.
  • high-rise buildings may sway during windy days such that the entire hoistway comprised in the building substantially sways thereby inducing swaying of the loose portion of the rope-like means.
  • high-speed elevators used in high-rise buildings may generate air turbulences within the hoistway upon moving its movable components and such air turbulences may induce swaying of the loose portion of the rope-like means.
  • Lateral swaying of the loose portion of the rope-like means is generally undesirable as it may for example stress the rope-like means and/or may produce noise and vibrations or other discomfort to passengers of the elevator.
  • WO 2011/117458 describes disposing a detachable damping means producing a mass effect to be supported by a top surface of a bottom loop of a rope-like means for damping lateral sways of the rope-like means.
  • EP 2 765 110 A2 describes an arrangement for damping lateral sways of rope-like means fixed to an elevator unit, the arrangement comprising a freely hanging damping means supported on a top surface of a bottom loop of the rope-like means, the damping means comprising a device for measuring acceleration and/or twisting of the rope-like means.
  • a rope sway reducing arrangement for hindering a lateral sway of an elongate rope-like means in an elevator hoistway.
  • one end of the rope-like means is attached to a movable component to be displaced within the hoistway and another end of the rope-like means is attached to a fixed position within the hoistway.
  • the arrangement comprises an elongate guide arrangement fixedly attached within the hoistway and extending in a longitudinal direction of the hoistway.
  • the arrangement comprises a magnet arrangement. This magnet arrangement is specifically adapted and arranged, i.e. is configured, such as to generate forces onto the rope-like means for attracting the rope-like means towards the guide arrangement.
  • RSR arrangement specific rope sway reducing arrangement
  • a specific rope sway reducing arrangement which comprises a guide arrangement and a magnet arrangement which interact in such manner such as to generate magnetically induced forces onto the loose portion of the rope-like means in a manner and direction such that this loose portion of the rope-like means is attracted towards the guide arrangement.
  • RSR arrangement specific rope sway reducing arrangement
  • lateral swaying of the loose portion of the rope-like means may significantly be hindered, i.e. a swaying distance covered by the swaying rope-like means may be significantly reduced, for example by at least 20%, 50% or even 80% when compared to a non-hindered lateral sway of the rope-like means.
  • the magnet arrangement may be adapted and arranged such as to generate forces onto the rope-like means, such forces having a magnitude being sufficient for attracting a portion of the rope-like means hanging loosely downwards from the movable component towards the guide arrangement into releasable physical adherence with the guide arrangement.
  • the magnet arrangement may be adapted and arranged such as to interact with the loosely downward-hanging portion of the rope-like means such that, due to forces induced by the magnet arrangement, this loose portion of the rope-like means is attracted towards the guide arrangement fixedly installed within the hoistway until the loose portion of the rope-like means comes into mechanical contact with the guide arrangement and, due to the magnetic attraction forces, adheres to the guide arrangement.
  • adherence of the rope-like means to the guide arrangement shall be releasable such that the loose portion of the rope-like means may be detached from the guide arrangement for example upon further motion of the movable component. Due to the physical adherence of the loose portion of the rope-like means to the guide arrangement induced by the magnet arrangement, any swaying of the loose portion of the rope-like means may be effectively suppressed.
  • the magnet arrangement is attached to the rope-like means.
  • the magnet arrangement may be fixedly joined to the rope-like means, particularly at the loose portion of the rope-like means. Accordingly, by for example magnetically interacting with the guide arrangement, the magnet arrangement itself may be attracted towards the guide arrangement and may thereby also attract the rope-like means to which it is attached towards the guide arrangement.
  • the magnet arrangement could also be attached to the guide arrangement or to another location within the elevator hoistway in order to generate magnetically induced forces onto the rope-like means.
  • the rope-like means should comprise some ferromagnetic components to be attracted by the magnet arrangement.
  • the magnet arrangement comprises a multitude of magnets. Accordingly, not only one single magnet may provide for the desired magnetically induced forces but each of the multitude of magnets may contribute to inducing such magnetically induced forces onto the rope-like means.
  • the magnets are attached to the rope-like means in a distributed manner along the length of the rope-like means.
  • multiple magnets are attached to the rope-like means at various locations along the elongate extension of the rope-like means. Accordingly, magnetically induced forces may apply to the rope-like means along substantial sections thereof, preferably along an entire extension of the rope-like means.
  • the rope-like means may be attracted towards the guide arrangement independent of which portion of the rope-like means is currently the most sway-sensitive portion.
  • the magnets are attached to the rope-like means at several attachment positions along the length of the rope-like means, such attachment positions having a distance from each other of less than 10m, preferably less than 5m, less than 2m or even less than 1m.
  • the rope-like means may be attracted towards the guide arrangement in a relatively homogeneous manner along its elongate extension.
  • a distance between neighbouring magnets should be sufficiently short such that any non-attracted segment of the rope-like means between such neighbouring magnets may not be subject to substantial local swaying.
  • the magnet arrangement may comprise one or more elongate magnets, such magnets being bendable in a bending direction of the rope-like means.
  • Such elongate magnet may be attached to the rope-like means such that its longitudinal direction coincides with the longitudinal direction of the rope-like means.
  • the elongate magnet may be attached to the rope-like means along a surface of the rope-like means.
  • the elongate magnet may extend along a substantial portion or, preferably, along an entire length of the rope-like means. Accordingly, attraction forces applied to the rope-like means may act along such substantial portions or along the entire length of the rope-like means.
  • the elongate magnet shall be bendable in the bending direction of the rope-like means such that it does not significantly hinder any bending of the rope-like means for example upon moving the rope-like means within the hoistway together with the movable component to which it is attached.
  • the elongate magnet may be composed of a multitude of small magnets being mechanically connected to each other in a row.
  • the elongate magnet may be supplied as a bendable continuous member such as for example an elongate flexible member comprising a flexible material into which small magnets or magnetic particles are incorporated.
  • a magnet arrangement comprising one or more elongate magnets instead of a large number of shorter magnets may be installed, i.e. for example attached to the rope-like means, in a simple manner using for example only few attachment provisions. Furthermore, no precise distances between neighbouring single magnets have to be determined and kept during installation.
  • the magnet arrangement comprises permanent magnets.
  • Such permanent magnets may permanently generate the desired forces onto the rope-like means.
  • a strength of such magnetically induced forces may be determined by correctly dimensioning the permanent magnets and/or selecting suitable magnetic material for the permanent magnets.
  • the magnet arrangement may comprise electromagnets, i.e. solenoids.
  • electromagnets i.e. solenoids.
  • Such electromagnets could provide for the desired generation of magnetically induced forces onto the rope-like means.
  • Even a magnitude of such forces could be regulated by specifically adapting an electric current through such electromagnets.
  • This could be used for example for specifically adapting the generated magnetically induced forces depending on for example whether the rope-like means shall be locally attracted towards the guide arrangement or whether the rope-like means shall be locally released from the guide arrangement.
  • providing the magnet arrangement with electromagnets may require an additional electrical energy supply and/or an additional and potentially sophisticated control device for controlling electrical energy supply.
  • the guide arrangement comprises a ferromagnetic material.
  • ferromagnetic material may be attracted by a magnet.
  • the guide arrangement By providing the guide arrangement with a ferromagnetic material, magnets being attached to the rope-like means may be attracted towards the guide arrangement.
  • the guide arrangement may comprise iron, nickel, cobalt or some of their alloys.
  • the entire guide arrangement consists of such ferromagnetic material.
  • the guide arrangement may comprise a guide rail continuously extending within the hoistway in the longitudinal direction of the hoistway.
  • Such guide rail may be provided for example along a wall of the hoistway and may be fixedly attached to such wall.
  • the guide rail may extend for example from a bottom portion to a top portion of the hoistway or may extend along segments of the hoistway.
  • the guide rail may be provided as a single continuous part.
  • the guide rail may be composed of several segments arranged in series along the longitudinal direction of the hoistway.
  • the guide rail may be a flat member such as a metal sheet longitudinally arranged within the hoistway.
  • the guide rail may have U-shaped cross-section.
  • Such U-shaped guide rail profile may enclose a volume comprised between sidewalls of the U-shaped profile and may be open towards one side of the U-shaped profile.
  • the rope-like means may be comprised within such volume enclosed in the U-shaped guide rail such that the sidewalls of the U-shaped guide rail may mechanically limit a swaying of the rope-like means in a direction perpendicular to such sidewalls.
  • at least a bottom portion of the U-shaped guide rail i.e. a portion of the guide rail connecting the sidewalls, may comprise a ferromagnetic material.
  • a magnet arrangement provided at the rope-like means may be attracted towards the bottom of the U-shaped guide rail thereby additionally limiting any swaying of the rope-like means in a direction perpendicular to such bottom, i.e. in a direction parallel to the sidewalls of the U-shaped guide rail. Accordingly, using such U-shaped guide rail, any swaying of the rope-like means may be limited in all lateral directions.
  • the rope-like means itself predominantly comprises a nonferromagnetic material.
  • the rope-like means preferably does not comprise significant portions of iron, nickel, cobalt or alloys thereof. Accordingly, the rope-like means may not be significantly attracted by magnetically induced forces.
  • non-ferromagnetic material may be interpreted as the rope-like means comprising less than 50%, preferably comprising less than 20% or 10%, of its volume and/or weight of ferromagnetic material or not comprising at all such ferromagnetic material.
  • the rope-like means may comprise a cable for electrically transmitting signals and/or for supplying electrical energy between the movable component and the fixed position to which the rope-like means is attached.
  • Such rope-like means adapted for conducting electricity for signal transmission and/or for electrical energy supply typically mainly consist of non-ferromagnetic material with high electrical conductivity such as for example copper.
  • signal or energy transmitting cables may have mechanical reinforcement structures, such reinforcement structures potentially comprising ferromagnetic material.
  • the cable may be shielded against electromagnetic influences from the magnet arrangement.
  • any magnetic field may induce electric currents within an electrical conductor.
  • transmitted electrical energy is only small such that electromagnetic influences generated by an external magnetic field may disturb signal transmission.
  • a shielding of the cable may comprise a tubular enclosure of the cable, such enclosure consisting of an electrically and/or magnetically conductive material such that magnetic fields are prevented from entering into a volume enclosed by the enclosure.
  • the shielding effect may be achieved by a metal fibre netting which encloses a signal transmitting core of a cable in a tubular manner.
  • the magnet arrangement in order to reduce any electromagnetic influences generated by the magnet arrangement, it may be beneficial to fixedly attach the magnet arrangement to the rope-like means instead of providing the magnet arrangement separate to the movable rope-like means. Being fixedly attached to the rope-like means, the magnetic field generated by the magnet arrangement and experienced by the rope-like means does not move and/or significantly temporarily vary within the rope-like means such that disturbing electric currents induced by electromagnetic influences may be minimized for example in a signal transmitting cable comprised in the rope-like means.
  • an elevator system comprises a movable component to be displaced within a hoistway, a rope-like means and a rope sway reducing arrangement according to an embodiment of the above-described first aspect of the invention.
  • any swaying of the rope-like means being attached to the movable component at its one end and being attached to a fixed position within the hoistway at its other end may be effectively suppressed using the force-inducing effect provided by the rope sway reducing arrangement.
  • Fig. 1 shows an elevator system 1 comprising two movable components such as an elevator car 3 and a counterweight 5 both being displaceable within a hoistway 7.
  • the car 3 and the counterweight 5 are suspended and may be displaced using a suspension traction means 9 being driven by a traction sheave 11 of a driving engine 12.
  • the elevator system 1 comprises a rope-like means 13.
  • the rope-like means may be any elongate means being bendable like a rope.
  • the rope-like means may be a rope, a belt, a cable, a wire or combinations of one or more such components.
  • One end 33 of the rope-like means 13 is attached to a fixed position 33 within the hoistway 7 and may be connected for example to a control unit 39 of the elevator system 1 controlling motions of the drive engine 12 and/or controlling functions of other components of the elevator system 1 such as functions of the elevator car 3. Furthermore, the rope-like means 13 may be connected to an electric power supply (not shown). An opposite end 35 of the rope-like means 13 is connected to the car 3 and may therefore move together with the car 3 throughout the hoistway 7.
  • an intermediate portion of the rope-like means 13 may generally be freely displaced within the hoistway 7.
  • Such loosely hanging portion 37 generally forms a U-shaped formation with one branch being formed by a portion of the rope-like means 13 attached to the car 3 and another branch being formed by a portion of the rope-like means being attached to the fixed position 31.
  • this loosely hanging portion 37 is not mechanically tensioned except by its own weight and may therefore easily be moved within the hoistway 7.
  • this loosely hanging portion 37 may laterally sway within the hoistway 7.
  • the elevator system 1 further comprises a rope sway reducing arrangement 15.
  • This RSR arrangement 15 comprises an elongate guide arrangement 17 and a magnet arrangement 21.
  • the RSR arrangement 15 is specifically adapted for generating forces onto the rope-like means 13 for attracting the rope-like means 13 towards the guide arrangement 17.
  • the loosely hanging portion 37 of the rope-like means 13 may be laterally displaced and mechanically tensioned towards the guide arrangement 17 thereby reducing its ability for lateral swaying.
  • the RSR arrangement 15 is configured such that forces are induced magnetically which force for example the loosely hanging portion 37 of the rope-like means 13 towards the guide arrangement 17 and into a mechanical adherence with the guide arrangement 17. Accordingly, at least parts of the loosely hanging portion 37 of the rope-like means 13 may magnetically adhere to the guide arrangement 17 thereby mechanically tensioning other non-adhering portions of the rope-like means 13 and thereby limiting a lateral swaying capability of the rope-like means 13.
  • any adherence of portions of the rope-like means 13 to the guide arrangement 17 may be released without any damages for example upon further moving the elevator car 3 in an upward direction.
  • the RSR arrangement 15 is provided with a guide rail 19 forming the guide arrangement 17 and with a plurality of magnets 23 forming the magnet arrangement 21.
  • the guide rail 19 may be attached to a wall of the hoistway 7 and may therefore be provided at a fixed location within the hoistway 7 and extend along a longitudinal, generally vertical direction of the hoistway 7.
  • the guide rail 19 may consist of or comprise a ferromagnetic material such as steel or other materials or alloys comprising iron, nickel or cobalt.
  • the guide rail 19 is made from a steel sheet which is bent into a U-shape with a bottom portion 29 and two opposing side portions 25, 27. Accordingly, the guide rail 19 forms a duct in which the side portions 25, 27 may guide the rope-like means 13 in a sideways lateral direction X, i.e. in a direction substantially perpendicular to the side portions 25, 27.
  • the duct-like guide rail 19 may generally prevent that the rope-like means 13 sways in the sideway lateral direction X, it may not prevent any swaying in a direction Y perpendicular thereto, i.e. in a frontward and rearward direction. Accordingly, without any additional measures being taken, the rope-like means 13 could for example sway out of the duct-like guide rail 19 at the open side of the U-shaped profile.
  • a multitude of magnets 23 form the magnet arrangement 21 and are attached to the rope-like means 13.
  • the magnets 23 may be relatively small as they shall only attract a portion of the rope-like means 13 into mechanical adherence with the ferromagnetic guide rail 19.
  • the magnets 23 are distributed along the length of the rope-like means 13. For example, every 5 to 10m, one magnet 23 may be attached to the rope-like means 13.
  • the magnets 23 are permanent magnets.
  • the magnets 23 enclose the rope-like means 13 and form a non-positive connection to the rope-like means 13.
  • the magnets 23 may be attached to the rope-like means 13 in any other manner.
  • the magnet arrangement 21 is provided with one or more elongate magnets being bendable in a bending direction of the rope-like means 13.
  • Such elongate magnets may be attached along the entire length of the rope-like means 13 or along substantial portions thereof and may bend together with the rope-like means upon the rope-like means 13 being displaced within the hoistway 7 together with the car 3.
  • the rope-like means 13 may be magnetically adhered to the bottom portion 29 of the guide rail 19 thereby preventing any escaping of loosely hanging portions 37 of the rope-like means 13 from the guide arrangement 17.
  • a cable comprised in or forming the rope-like means 13 is shielded against electromagnetic influences from the magnet arrangement 21 by a shielding arrangement 41.
  • Such shielding arrangement may be a simple electrically and/or magnetically conducting enclosure surrounding the cable and thereby protecting the cable against any electromagnetic fields entering the cable and generating disturbing electric currents therein.

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  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP15187705.7A 2015-09-30 2015-09-30 Agencement de réduction du balancement latéral des câbles dans un ascenseur, basée sur le magnétisme Withdrawn EP3150538A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15187705.7A EP3150538A1 (fr) 2015-09-30 2015-09-30 Agencement de réduction du balancement latéral des câbles dans un ascenseur, basée sur le magnétisme

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15187705.7A EP3150538A1 (fr) 2015-09-30 2015-09-30 Agencement de réduction du balancement latéral des câbles dans un ascenseur, basée sur le magnétisme

Publications (1)

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EP3150538A1 true EP3150538A1 (fr) 2017-04-05

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EP15187705.7A Withdrawn EP3150538A1 (fr) 2015-09-30 2015-09-30 Agencement de réduction du balancement latéral des câbles dans un ascenseur, basée sur le magnétisme

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110240043A (zh) * 2018-03-09 2019-09-17 蒂森电梯有限公司 用于电梯随行电缆的磁吸附装置
US11001476B2 (en) * 2016-09-30 2021-05-11 Otis Elevator Company Compensation chain stabilize device and method, hoistway and elevator system
JP2021080070A (ja) * 2019-11-19 2021-05-27 東北電力株式会社 屋外設置昇降機のケーブルガイド装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3885773A (en) * 1974-05-06 1975-05-27 Clark Equipment Co Magnetic cable takeup device
JPH01288588A (ja) * 1988-05-16 1989-11-20 Mitsubishi Electric Corp エレベータ移動ケーブルの振れ防止装置
US20030196857A1 (en) * 2002-04-17 2003-10-23 Tiner James L. Elevator mechanism
JP2009280349A (ja) * 2008-05-22 2009-12-03 Mitsubishi Electric Corp エレベーター制御ケーブル制振装置
WO2011117458A1 (fr) 2010-03-25 2011-09-29 Kone Corporation Agencement permettant d'amortir les oscillations latérales d'un moyen de type corde fixé sur une cabine d'ascenseur
EP2765110A2 (fr) 2013-02-12 2014-08-13 Kone Corporation Agencement permettant d'amortir les oscillations latérales d'un support de type corde fixé sur une cabine d'ascenseur

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3885773A (en) * 1974-05-06 1975-05-27 Clark Equipment Co Magnetic cable takeup device
JPH01288588A (ja) * 1988-05-16 1989-11-20 Mitsubishi Electric Corp エレベータ移動ケーブルの振れ防止装置
US20030196857A1 (en) * 2002-04-17 2003-10-23 Tiner James L. Elevator mechanism
JP2009280349A (ja) * 2008-05-22 2009-12-03 Mitsubishi Electric Corp エレベーター制御ケーブル制振装置
WO2011117458A1 (fr) 2010-03-25 2011-09-29 Kone Corporation Agencement permettant d'amortir les oscillations latérales d'un moyen de type corde fixé sur une cabine d'ascenseur
EP2765110A2 (fr) 2013-02-12 2014-08-13 Kone Corporation Agencement permettant d'amortir les oscillations latérales d'un support de type corde fixé sur une cabine d'ascenseur

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11001476B2 (en) * 2016-09-30 2021-05-11 Otis Elevator Company Compensation chain stabilize device and method, hoistway and elevator system
CN110240043A (zh) * 2018-03-09 2019-09-17 蒂森电梯有限公司 用于电梯随行电缆的磁吸附装置
JP2021080070A (ja) * 2019-11-19 2021-05-27 東北電力株式会社 屋外設置昇降機のケーブルガイド装置

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