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EP1056679B1 - Systeme d'ascenseur exempt de local de machinerie, la machinerie etant montee sur la cabine d'ascenseur - Google Patents

Systeme d'ascenseur exempt de local de machinerie, la machinerie etant montee sur la cabine d'ascenseur Download PDF

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Publication number
EP1056679B1
EP1056679B1 EP99908278A EP99908278A EP1056679B1 EP 1056679 B1 EP1056679 B1 EP 1056679B1 EP 99908278 A EP99908278 A EP 99908278A EP 99908278 A EP99908278 A EP 99908278A EP 1056679 B1 EP1056679 B1 EP 1056679B1
Authority
EP
European Patent Office
Prior art keywords
elevator
hoistway
machine
sheave
elevator car
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.)
Expired - Lifetime
Application number
EP99908278A
Other languages
German (de)
English (en)
Other versions
EP1056679A2 (fr
Inventor
Richard L. Hollowell
Richard N. Fargo
James A. Rivera
Frank Sansevero
Bruce St. Pierre
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.)
Otis Elevator Co
Original Assignee
Otis Elevator Co
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
Priority claimed from US09/031,108 external-priority patent/US6401871B2/en
Application filed by Otis Elevator Co filed Critical Otis Elevator Co
Publication of EP1056679A2 publication Critical patent/EP1056679A2/fr
Application granted granted Critical
Publication of EP1056679B1 publication Critical patent/EP1056679B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0065—Roping
    • B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave

Definitions

  • the present invention relates to a machine-roomless elevator system and, more particularly, to a machine-roomless elevator system with an elevator machine mounted on an elevator car and using flat ropes for traction and suspension of the elevator car.
  • Conventional traction elevator systems include an elevator car and a counterweight, each suspended on opposite ends of a hoist rope in an elevator hoistway.
  • the hoist ropes are driven by a drive sheave rotated by an elevator machine.
  • the elevator machines are disposed in a machine room.
  • the machine rooms are constructed above the hoistway to house the machine and to provide sufficient space for an elevator maintenance crew to service the equipment disposed therein.
  • Some existing systems include an elevator machine disposed in the hoistway.
  • One drawback of having a machine suspended in the hoistway is the difficulty of servicing the machine.
  • the elevator mechanics must work on the machine while in the hoistway, resulting in a dangerous work environment.
  • WO97/11020 discloses an elevator system having the features of the preambles of claims 1 and 10.
  • the invention provides an elevator system as claimed in claim 1.
  • the invention provides an elevator system as claimed in claim 10.
  • a plurality of flat ropes cooperate with the elevator machine to provide traction and suspension for the elevator car.
  • the elevator system further includes a drive sheave, either driven by or incorporated into the elevator machine, for engaging the plurality of hoist ropes and a plurality of idler sheaves to provide traction and to suspend the elevator car in the hoistway.
  • Use of flat ropes significantly reduces requirements for the sheave diameter and size of the elevator machine, thereby making it practical for the elevator machine to be onboard the elevator car.
  • One embodiment of the present invention discloses two ends of the hoist ropes that are fixedly attached to the building structure and a plurality of idler sheaves arranged within the hoistway providing a one-to-one (1:1) ratio of drive sheave speed to elevator car speed.
  • An alternate embodiment includes a plurality of idler sheaves arranged in the hoistway to provide a three-to-one (3:1) ratio of drive sheave speed to elevator car speed. This arrangement reduces the torque requirement for the elevator machine by a factor of three (3).
  • a further alternate embodiment discloses the ends of the hoist ropes attaching to the elevator car and the counterweight, respectively, and a plurality of idler sheaves arranged in the hoistway for engaging the hoist ropes that provide traction and suspension for the elevator car with a two-to-one (2:1) ratio of drive sheave speed to elevator car speed, thereby reducing the torque requirement for the elevator machine by a factor of two (2).
  • the reduction in the torque requirement for the elevator machine results in a further reduction in size of the machine, making the elevator machine even more compact and lighter.
  • One advantage of the present invention in its preferred embodiments is that it eliminates the need for the machine room. Another advantage is that it allows elevator mechanics to service elevator machines from the inside of the elevator car when an access panel is provided in the car. An additional advantage is that the hoist ropes are used for both traction and suspension of the elevator car.
  • a machine-roomless elevator system 10 disposed in a hoistway 12 of a building structure 14 includes an elevator car 16 moving within the hoistway 12 alternatingly with a counterweight 20.
  • the elevator car 16 and the counterweight 20 are suspended by a single hoist rope or a plurality of hoist ropes, shown schematically as a single rope 22.
  • the hoist ropes 22 include first hoist rope ends 24 and second hoist rope ends 26.
  • Each rope end 24, 26 is fixedly attached either directly or indirectly to the building structure 14.
  • the rope ends 24, 26 may be attached to guide rails (not shown) that are fixedly attached to the building structure 14.
  • a drive sheave 30 and an elevator machine 32 are mounted onto the elevator car 16.
  • the elevator machine 32 is shown to be disposed below the elevator car 16.
  • a deflector sheave 34 is disposed substantially across from the drive sheave 30 and is also mounted onto the elevator car 16.
  • a plurality of idler sheaves 36, 38 directs and guides the hoist ropes 22 within the hoistway 12.
  • the first ends 24 of the hoist ropes 22 are fixedly secured to the building structure 14 with the hoist ropes 22 then being engaged by the drive sheave 30, driven the by elevator machine 32.
  • the ropes 22 subsequently pass over the deflector sheave 34.
  • the ropes 22 are either single or double wrapped about the deflector and drive sheaves 34, 30, as can be seen in FIGs. 1 and 2, respectively.
  • the double wrapping has an advantage of providing additional traction to the elevator system 10 with less wear.
  • the ropes 22 subsequently pass over the idler sheave 36 which is attached either directly or indirectly to the building structure 14.
  • the ropes 22 then pass under the idler sheave 38 disposed at the counterweight 20 and subsequently terminate with the second rope ends 26 attaching onto the building structure 14.
  • the elevator car 16 is self-propelled through the hoistway 12 with the hoist ropes 22 providing both traction and suspension.
  • the ropes 22 move the elevator car 16 vertically up or down in the hoistway 12 alternatingly with the counterweight 20.
  • this embodiment of the present invention eliminates the need for a machine room for the elevator system 10.
  • Flat ropes are used to provide additional traction and to allow use of smaller sheaves and elevator machines. Use of smaller machines not only reduces the cost of the system 10, but also reduces the size and weight of the elevator machine, thereby making it possible to co-locate the elevator machine 32 with the elevator car 16. Additionally, use of hoist ropes 22 for both traction and suspension eliminates the need for two sets of ropes.
  • an alternate embodiment of the present invention depicts a machine-roomless elevator system 110 having an elevator car 116 propelled by an onboard elevator machine 132 that is mounted thereon.
  • the machine 132 drives a drive sheave 130 that is either attached to the machine 132 or incorporated therein.
  • the elevator system 110 also includes a deflector sheave 134 and a plurality of idler sheaves 135-141.
  • the idler sheaves 135, 136 are fixedly attached to elevator car 116 and the idler sheaves 139,141 attach to the counterweight 120.
  • the idler sheaves 137,138,140 are mounted either directly of indirectly onto the building structure 114.
  • the hoist rope ends 124, 126 are also fixedly secured either directly or indirectly onto the building structure 114.
  • the hoist ropes 122 pass over the idler sheaves 135,136 and then over the idler sheave 137. Then, the ropes 122 are wrapped around the drive and deflector sheaves 130, 134. Subsequently, ropes 122 are guided by the idler sheaves 138, 139, 140, 141, respectively.
  • the ropes 122 are either single or double wrapped about the deflector and drive sheaves, as can be seen in FIGs. 3 and 4, respectively.
  • the elevator machine 132 rotates the drive sheave 130 that drives the ropes 122, thereby propelling the elevator car 116 within the hoistway 112.
  • This rope arrangement provides additional advantages over the first embodiment of the present invention.
  • This rope arrangement provides a three-to-one (3:1) ratio of drive sheave speed to elevator car speed, thereby reducing torque requirement for the elevator machine and thus, allowing use of a much smaller machine.
  • This further reduction in machine size is highly desirable in elevator systems and represents additional reduction in required space and weight of the machine, as well as cost savings.
  • a machine-roomless elevator system 210 includes an elevator car 216 and a counterweight 220 suspended by hoist ropes 222.
  • the ropes 222 include first rope ends 224 that are fixedly secured to the elevator car 216 and second rope ends 226 that are fixedly secured to the counterweight 220.
  • the ropes 222 are driven by an elevator machine 232 through a drive sheave 230.
  • the elevator machine 232 and the drive sheave 230 are mounted onto the elevator car 216.
  • a deflector sheave 234 is also attached to the elevator car 216.
  • a plurality of idler sheaves 235-238 are disposed within the hoistway 212.
  • Idler sheaves 235, 236, 238 are fixedly secured either directly or indirectly to the building structure 214 at the top portion of the hoistway 212 and the idler sheave 237 is fixedly attached either directly or indirectly to the building structure 214 at the bottom portion of the hoistway 212.
  • An access panel 250 is formed within the elevator car 216 to allow access to the elevator machine 232.
  • the ends 224 of the hoist ropes 222 are first attached to elevator car 216, then the ropes 222 pass over the idler sheaves 235, 236, respectively, and then over the deflector and drive sheaves 234, 230. Subsequently, the ropes 222 are guided over the idler sheaves 237, 238 and then terminate at the counterweight 220.
  • This rope arrangement provides a two-to-one (2:1) ratio of drive sheave speed to elevator car speed, thereby reducing torque requirement for the elevator machine and thus allows use of a smaller machine.
  • One advantage of the present invention is that the elevator machine mounted on the elevator car described herein can be serviced in a relatively safe environment for the maintenance crew.
  • the elevator machines can be accessed from the inside of the elevator car through the access panel provided therein.
  • a principal feature of the present invention is the flatness of the ropes used in the above described elevator system.
  • the increase in aspect ratio results in a rope that has an engagement surface, defined by the width dimension "w", that is optimized to distribute the rope pressure. Therefore, the maximum rope pressure is minimized within the rope.
  • the thickness "t1" of the flat rope may be reduced while maintaining a constant cross-sectional area of the portions of the rope supporting the tension load in the rope.
  • the flat ropes 722 include a plurality of individual load carrying cords 726 encased within a common layer of coating 728.
  • the coating layer 728 separates the individual cords 726 and defines an engagement surface 730 for engaging the traction sheave 724.
  • the load carrying cords 726 may be formed from a high-strength, lightweight non-metallic material, such as aramid fibers, or may be formed from a metallic material, such as thin, high-carbon steel fibers. It is desirable to maintain the thickness "d" of the cords 726 as small as possible in order to maximize the flexibility and minimize the stress in the cords 726.
  • the fiber diameters should be less than .25 millimeters in diameter and preferably in the range of about .10 millimeters to .20 millimeters in diameter.
  • Steel fibers having such diameter improve the flexibility of the cords and the rope.
  • the traction sheave diameter "D" may be reduced while maintaining the maximum rope pressure within acceptable limits.
  • the engagement surface 730 is in contact with a corresponding surface 750 of the traction sheave 724.
  • the coating layer 728 is formed from a polyurethane material, preferably a thermoplastic urethane, that is extruded onto and through the plurality of cords 726 in such a manner that each of the individual cords 726 is restrained against longitudinal movement relative to the other cords 726.
  • Other materials may also be used for the coating layer if they are sufficient to meet the required functions of the coating layer: traction, wear, transmission of traction loads to the cords and resistance to environmental factors.
  • thermoplastic urethane if they do not meet or exceed the mechanical properties of a thermoplastic urethane, then the benefits resulting from the use of flat ropes may be reduced. With the thermoplastic urethane mechanical properties the traction sheave 724 diameter is reducible to 100 millimeters or less.
  • the rope pressure may be distributed more uniformly throughout the rope 722. Because of the incorporation of a plurality of small cords 726 into the flat rope elastomer coating layer 728, the pressure on each cord 726 is significantly diminished over prior art ropes. Cord pressure is decreased at least as n -1 ⁇ 2 , with n being the number of parallel cords in the flat rope, for a given load and wire cross section. Therefore, the maximum rope pressure in the flat rope is significantly reduced as compared to a conventionally roped elevator having a similar load carrying capacity.
  • the effective rope diameter 'd' (measured in the bending direction) is reduced for the equivalent load bearing capacity and smaller values for the sheave diameter 'D' may be attained without a reduction in the D/d ratio.
  • minimizing the diameter D of the sheave permits the use of less costly, more compact, high speed motors as the drive machine.
  • a traction sheave 724 having a traction surface 750 configured to receive the flat rope 722 is also shown in FIG. 7.
  • the engagement surface 750 is complementarily shaped to provide traction and to guide the engagement between the flat ropes 722 and the sheave 724.
  • the traction sheave 724 includes a pair of rims 744 disposed on opposite sides of the sheave 724 and one or more dividers 745 disposed between adjacent flat ropes.
  • the traction sheave 724 also includes liners 742 received within the spaces between the rims 744 and dividers 745.
  • the liners 742 define the engagement surface 750 such that there are lateral gaps 754 between the sides of the flat ropes 722 and the liners 742.
  • a traction sheave without liners may be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Claims (10)

  1. Système d'ascenseur (10 ; 110 ; 210) disposé dans un puits (12 ; 112 ; 212) d'une structure de bâtiment (14) comprenant :
    une cabine d'ascenseur (20 ; 216) se déplaçant à l'intérieur dudit puits ;
    un câble de levage (722 ; 222) destiné à effectuer la traction et la suspension de ladite cabine d'ascenseur ; et
    une machinerie d'ascenseur (32 ; 132 ; 232) fixée à ladite cabine d'ascenseur pour entraíner ledit câble de levage ; caractérisé en ce que ledit câble de levage est un câble de levage plat.
  2. Système d'ascenseur selon la revendication 1, dans lequel ladite machinerie d'ascenseur est disposée au-dessous de ladite cabine d'ascenseur.
  3. Système d'ascenseur selon la revendication 1, dans lequel ladite machinerie d'ascenseur est disposée au-dessus de ladite cabine d'ascenseur.
  4. Système d'ascenseur selon la revendication 1, dans lequel ladite machinerie d'ascenseur est disposée d'un côté de ladite cabine d'ascenseur.
  5. Système d'ascenseur selon l'une quelconque des revendications 1 à 4, comprenant en outre :
    une poulie de traction (30, 34) couplée à ladite machinerie d'ascenseur et coopérant avec ledit câble de levage ; et
    une pluralité de poulies folles (36, 38) disposées dans ledit puits pour faciliter l'agencement des câbles du système d'ascenseur afin de maintenir un rapport un sur un de la vitesse de la poulie de traction sur la vitesse de la cabine d'ascenseur.
  6. Système d'ascenseur selon l'une quelconque des revendications 1 à 4, comprenant en outre :
    une poulie de traction (230) couplée à ladite machinerie d'ascenseur et coopérant avec ledit câble de levage ; et
    une pluralité de poulies folles (235, 236, 237, 238) disposées à l'intérieur dudit puits pour faciliter l'agencement des câbles du système d'ascenseur afin de maintenir un rapport deux sur un de la vitesse de la poulie de traction sur la vitesse de la cabine d'ascenseur.
  7. Système d'ascenseur selon l'une quelconque des revendications 1 à 4, comprenant en outre :
    une poulie de traction (130) couplée à ladite machinerie d'ascenseur et coopérant avec ledit câble de levage ; et
    une pluralité de poulies folles (135, 136, 137, 138, 140, 141) disposées à l'intérieur dudit puits pour faciliter l'agencement des câbles du système d'ascenseur afin de maintenir un rapport trois sur un de la vitesse de la poulie de traction sur la vitesse de la cabine d'ascenseur.
  8. Système d'ascenseur selon l'une quelconque des revendications précédentes, comprenant en outre :
    un contrepoids (20 ; 120 ; 220) se déplaçant dans ledit puits en alternance avec ladite cabine d'ascenseur.
  9. Système d'ascenseur selon l'une quelconque des revendications précédentes, dans lequel ladite machinerie d'ascenseur comprend en outre :
    un panneau d'accès (250) formé dans ladite cabine d'ascenseur pour permettre l'accès d'une équipe de maintenance d'ascenseur à ladite machinerie d'ascenseur depuis l'intérieur de ladite cabine d'ascenseur.
  10. Système d'ascenseur (210) disposé dans un puits (212) d'une structure de bâtiment, comprenant :
    une cabine d'ascenseur (216) se déplaçant à l'intérieur dudit puits ;
    un contrepoids (220) se déplaçant à l'intérieur dudit puits en alternance avec ladite cabine d'ascenseur ;
    une machinerie d'ascenseur (232) fixée à ladite cabine d'ascenseur ;
    au moins un câble de levage (222) ;
    une poulie de traction (230) couplée à ladite machinerie d'ascenseur ;
    une poulie de déviation (234) disposée sensiblement adjacente à ladite poulie de traction ; caractérisé en ce qu'il comprend en outre :
    une première poulie folle (235) disposée à l'intérieur dudit puits et fixée de façon fixe à ladite structure de bâtiment au niveau d'une partie supérieure (214) dudit puits ;
    une deuxième poulie folle (236) disposée à l'intérieur dudit puits et fixée de façon fixe à ladite structure de bâtiment au niveau de ladite partie supérieure dudit puits, ladite deuxième poulie folle étant située à une certaine distance de ladite première poulie folle ;
    une troisième poulie folle (237) disposée à l'intérieur dudit puits et fixée de façon fixe à ladite structure de bâtiment au niveau d'une partie inférieure dudit puits ;
    une quatrième poulie folle (238) disposée à l'intérieur dudit puits et fixée de façon fixe à ladite structure de bâtiment au niveau de ladite partie supérieure dudit puits, ladite quatrième poulie folle étant située à une certaine distance desdites première et deuxième poulies folles ; et en ce que
    ledit au moins un câble de levage (22 ; 722) comporte une première extrémité de câble de levage (224) fixée sur ladite cabine d'ascenseur, une deuxième extrémité de câble de levage (226) fixée sur ledit contrepoids, et une partie médiane, ladite partie médiane dudit câble de levage coopérant avec ladite poulie de traction et ladite poulie de déviation, ladite première extrémité de câble de levage coopérant avec lesdites première et deuxième poulies folles avant de coopérer avec ladite poulie de déviation, ladite deuxième extrémité dudit câble de levage coopérant avec lesdites troisième et quatrième poulies folles avant de coopérer avec ladite poulie de traction, ledit câble de levage suspendant ladite cabine d'ascenseur et ledit contrepoids et effectuant leur traction.
EP99908278A 1998-02-26 1999-02-19 Systeme d'ascenseur exempt de local de machinerie, la machinerie etant montee sur la cabine d'ascenseur Expired - Lifetime EP1056679B1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US31108 1998-02-26
US09/031,108 US6401871B2 (en) 1998-02-26 1998-02-26 Tension member for an elevator
US16378598A 1998-09-30 1998-09-30
US163785 1998-09-30
US09/218,990 US6739433B1 (en) 1998-02-26 1998-12-22 Tension member for an elevator
US218990 1998-12-22
PCT/US1999/003644 WO1999043595A2 (fr) 1998-02-26 1999-02-19 Systeme d'ascenseur exempt de local de machinerie, la machinerie etant montee sur la cabine d'ascenseur

Publications (2)

Publication Number Publication Date
EP1056679A2 EP1056679A2 (fr) 2000-12-06
EP1056679B1 true EP1056679B1 (fr) 2003-06-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP99908278A Expired - Lifetime EP1056679B1 (fr) 1998-02-26 1999-02-19 Systeme d'ascenseur exempt de local de machinerie, la machinerie etant montee sur la cabine d'ascenseur

Country Status (8)

Country Link
EP (1) EP1056679B1 (fr)
JP (1) JP2002504472A (fr)
CN (1) CN1329274C (fr)
BR (1) BR9908305A (fr)
DE (1) DE69908908T2 (fr)
ES (1) ES2196781T3 (fr)
PT (1) PT1056679E (fr)
WO (1) WO1999043595A2 (fr)

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Publication number Priority date Publication date Assignee Title
US10589964B2 (en) 2016-10-17 2020-03-17 Otis Elevator Company Elevator car, elevator system and method of checking, maintaining and/or repairing an elevator system

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FI109468B (fi) 1998-11-05 2002-08-15 Kone Corp Vetopyörähissi
EP1215156A1 (fr) * 2000-12-13 2002-06-19 Inventio Ag Ascenseur dont la machinerie est solidaire de la cabine
CZ299209B6 (cs) * 2001-01-04 2008-05-21 Kone Corporation Bezprevodovkový lanový výtah s pohonem hnacího kola, dvojite opásaného paralelními nosnými lany
FR2819796B1 (fr) * 2001-01-19 2003-04-11 Emile Kadoche Motorisation embarquee sous une cabine d'ascenseur
FI4928U1 (fi) * 2001-01-25 2001-05-23 Kone Corp Hissi
FI119234B (fi) * 2002-01-09 2008-09-15 Kone Corp Hissi
EP1471026B1 (fr) 2002-01-30 2011-03-09 Mitsubishi Denki Kabushiki Kaisha Dispositif d'ascenseur
EP1481935A4 (fr) * 2002-03-01 2010-09-01 Mitsubishi Electric Corp Ascenseur
US7448474B2 (en) 2002-05-28 2008-11-11 Kone Corporation Method for making an elevator and system for elevator delivery
FI119242B (fi) * 2002-05-28 2008-09-15 Kone Corp Menetelmä hissin tekemiseksi ja hissin toimitusjärjestelmä
WO2004043844A1 (fr) * 2002-11-12 2004-05-27 Mitsubishi Denki Kabushiki Kaisha Cable pour ascenseur et equipement d'ascenseur
JP4265444B2 (ja) * 2004-03-01 2009-05-20 株式会社日立製作所 エレベーター装置
JP4419684B2 (ja) * 2004-05-31 2010-02-24 株式会社日立製作所 エレベーター装置
CA2573566C (fr) * 2004-07-12 2012-11-27 Daniel Fischer Ascenseur et ensemble de poulies pour un ascenseur
WO2006033160A1 (fr) 2004-09-24 2006-03-30 Mitsubishi Denki Kabushiki Kaisha Ascenseur sans salle des machines
KR101130160B1 (ko) 2006-06-26 2012-03-28 오티스 엘리베이터 컴파니 축소된 승강로 크기를 갖는 엘리베이터 설치
DE102009040964A1 (de) * 2009-09-11 2011-03-24 Sgl Carbon Se Seil
CN102381613B (zh) * 2011-07-08 2013-05-15 江苏通用电梯有限公司 一种无机房电梯
ES2744272T3 (es) 2015-04-10 2020-02-24 Otis Elevator Co Sistema y método de alineamiento de foco delantero de vehículo
JP7161819B2 (ja) * 2019-12-18 2022-10-27 三菱電機株式会社 エレベータ装置
DE102022001560A1 (de) 2022-05-04 2023-11-09 Meik Schröder Maschinenraumloses Aufzugssystem
DE102023000227A1 (de) 2023-01-26 2024-08-01 Meik Schröder Maschinenraumloses Aufzugssystem mit Antrieb an der Aufzugskabine

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EP0565516A1 (fr) * 1992-04-09 1993-10-13 Werner Mag. Dr. Hagel Ascenseur
FI99264C (fi) * 1995-09-21 1998-02-10 Kone Oy Konehuoneeton vetopyörähissi

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10589964B2 (en) 2016-10-17 2020-03-17 Otis Elevator Company Elevator car, elevator system and method of checking, maintaining and/or repairing an elevator system

Also Published As

Publication number Publication date
JP2002504472A (ja) 2002-02-12
BR9908305A (pt) 2000-10-31
CN1291960A (zh) 2001-04-18
WO1999043595A2 (fr) 1999-09-02
DE69908908T2 (de) 2004-05-19
DE69908908D1 (de) 2003-07-24
PT1056679E (pt) 2003-11-28
ES2196781T3 (es) 2003-12-16
EP1056679A2 (fr) 2000-12-06
WO1999043595A3 (fr) 2000-01-06
CN1329274C (zh) 2007-08-01

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