EP1604938B1 - Ascenseur avec moteur placé à côté de la porte palière - Google Patents

Ascenseur avec moteur placé à côté de la porte palière Download PDF

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Publication number
EP1604938B1
EP1604938B1 EP05017479A EP05017479A EP1604938B1 EP 1604938 B1 EP1604938 B1 EP 1604938B1 EP 05017479 A EP05017479 A EP 05017479A EP 05017479 A EP05017479 A EP 05017479A EP 1604938 B1 EP1604938 B1 EP 1604938B1
Authority
EP
European Patent Office
Prior art keywords
hoistway
elevator
drive motor
sheave
elevator system
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
EP05017479A
Other languages
German (de)
English (en)
Other versions
EP1604938A2 (fr
EP1604938A3 (fr
Inventor
Armando Servia
Leandre Adifon
José Sevilleja
Richard J. Ericson
David Wayne Jones
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
Priority claimed from US09/163,207 external-priority patent/US7299896B1/en
Application filed by Otis Elevator Co filed Critical Otis Elevator Co
Priority claimed from EP99908296A external-priority patent/EP1042209B1/fr
Publication of EP1604938A2 publication Critical patent/EP1604938A2/fr
Publication of EP1604938A3 publication Critical patent/EP1604938A3/fr
Application granted granted Critical
Publication of EP1604938B1 publication Critical patent/EP1604938B1/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
    • B66B11/004—Arrangement of driving gear, e.g. location or support in the machine room
    • 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
    • B66B11/009—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave with separate traction and suspension ropes

Definitions

  • the present invention relates generally to an elevator system, and more particularly to an elevator system including a drive motor provided adjacent to a hoistway door.
  • Elevator systems have been developed to avoid the expense of a machine room. These elevator systems are difficult to install and maintain because hoistway access can be difficult or dangerous especially to maintenance people while working in the hoistway on machinery that controls elevator motion.
  • An elevator system having the features of the preamble of claim 1 is disclosed in EP 0680921 A2 .
  • a slidable control cabinet is disclosed in JP-A-10 036 023 .
  • an elevator system as claimed in claim 1.
  • An advantage of the present invention is that the elevator system significantly reduces the space and construction costs associated with an elevator system having a machine room.
  • a second advantage of the present invention is simplified and safe access to the drive motor and associated equipment from an elevator hallway or landing.
  • a third advantage of the present invention is the provision of several alternative drive motor locations for safe and easy access.
  • FIG. 1 schematically illustrates a side elevational view of an elevator system 10 which employs round ropes.
  • FIG. 2 is a perspective view of an elevator system 50 which is similar to the elevator system 10 of FIG. 1 except that the elevator system 50 employs flat ropes. Because the elevator systems 10 and 50 are generally similar, both systems will be described together.
  • flat ropes or belts permit smaller drive motors and sheaves to drive and suspend elevator car and counterweight loads relative to drive motors and sheaves using conventional round ropes.
  • the diameter of drive sheaves used in elevators with conventional round ropes is limited to 40 times the diameter of the ropes, or larger, due to fatigue of the ropes as they repeatedly conform to the diameter of the sheave and straighten out.
  • Torque is proportional to the diameter of the traction sheave. Therefore, the use of a smaller diameter traction sheave reduces motor torque.
  • Motor size (rotor volume) is roughly proportional to torque; therefore, although the mechanical output power remains the same regardless of sheave size, flat ropes or belts allow the use of a smaller drive motor operating at a higher speed relative to systems using conventional round ropes. Consequently, smaller conventional and flat drive motors may be accommodated in the hoistway which significantly reduces the size and construction cost of the hoistway.
  • reducing the machine size i.e., drive motor and sheaves
  • a small machine utilizes less material, and will be less costly to produce relative to a larger machine.
  • the light weight of a small machine reduces the time for handling the machine and the need for equipment to lift the machine into place so as to significantly reduce installation cost.
  • low torque and high speed allow the elimination of gears, which are costly. Further, gears can cause vibrations and noise, and require maintenance of lubrication.
  • geared machines may also be employed if desired.
  • Flat ropes or belts also distribute the elevator and counterweight loads over a greater surface area on the sheaves relative to round ropes for reduced specific pressure on the ropes, thus increasing its operating life.
  • the flat ropes or belts may be made from a high traction material such as urethane or rubber jacket with fiber or steel reinforcement.
  • the elevator systems 10, 50 include a hoistway 12 defined by the surrounding structure 14 (see FIG. 1 ) of a building.
  • the hoistway 12 includes door openings at each level along the hoistway for accepting hoistway doors.
  • a hoistway door 16 is provided at an elevator hallway landing 18 at the topmost floor to be serviced by the elevator systems 10, 50.
  • An elevator car 20 is provided in the hoistway 12 for upward and downward movement via elevator guide rails 21, 21 (see FIG. 2 ) along the hoistway, and includes an elevator door 22 coupled to and for movement along the hoistway with the elevator.
  • the elevator door 22 is opposed to and aligned with the hoistway door 16 for permitting passenger access to the elevator car 20 at the topmost landing 18.
  • the elevator systems 10, 50 include a drive motor 24 coupled to a sidewall 25 or an underside of a ceiling 27 (see FIG. 1 ) of the hoistway 12, and located adjacent to and above the hoistway door 16 for moving the elevator car 20 upwardly and downwardly along the hoistway 12.
  • the drive motor may be geared or gearless in the traction system shown, or alternatively may be a drum motor in a drum drive implementation (not shown).
  • a counterweight 26 movably coupled to counterweight guide rails 27, 27 is provided to one side of the hoistway 12 unoccupied by the elevator 20 for balancing the elevator in its upward and downward movement.
  • the connector includes three flat ropes 29.
  • the connector is coupled at a first end to a bracket 32 (see FIG. 1 ) which is anchored to an upper sidewall or ceiling of the hoistway 12.
  • the connector extends downwardly from its first end at the bracket 32, loops 180° about a counterweight sheave 34 coupled to a top of the counterweight 26, extends upwardly and then loops 90° about a first deflector or traction sheave 36 anchored to a sidewall, ceiling, guide rail or a structure of the hoistway directly above the counterweight, extends horizontally to the drive motor 24, loops 180° about the motor sheave 30, extends about a second deflector or traction sheave 38 anchored to a sidewall or ceiling of the hoistway, extends downwardly toward the elevator car 20, underslings or loops under a floor of the elevator car 20 via elevator sheaves 40, 40 (only one shown in FIGS. 1 and 2 ) provided underneath and at the sides of the elevator, and extends upwardly and is anchored at a second end to a sidewall
  • the elevator systems 10, 50 avoid the additional expense and space associated with the construction of a conventional machine room for supporting and housing the drive motor 24 and associated control equipment such as a controller and a drive unit.
  • the drive motor 24 is substantially enclosed by a housing 42 which includes a movable front panel 44 facing and protruding externally of the hoistway 12 into an upper part of an adjacent elevator hallway 46 for easy and safe access by maintenance workers at the topmost landing 18 of the hallway 46.
  • the front panel may include a hinge 48 which permits the front panel 44 to pivot downwardly in the direction shown by the arrow A so that maintenance workers may access the drive motor 24 and any associated equipment from the hallway 46 over the landing 18.
  • an elevator system is generally designated by the reference number 100.
  • the elevator system 100 is generally similar to the elevator systems 10, 50 of FIGS. 1 and 2 except for the placement of the drive motor 24 and deflector sheaves 36, 38 along the hoistway 12.
  • the drive motor 24 may be provided below a hoistway door at the bottommost level or any level along the hoistway except for the topmost level.
  • the deflector sheaves 36, 38 may be located within the hoistway 12 adjacent to and generally at the same level as the drive motor 24.
  • the drive motor 24 is substantially enclosed by a housing 102 which includes a movable front panel 104 forming part of a landing or hallway floor 106 for easy and safe access by maintenance workers.
  • the front panel 104 may include a hinge 108 which permits the front panel to pivot upwardly in the direction shown by the arrow B in order to permit maintenance workers to access the motor 24 and any associated equipment from the hallway landing 106.
  • FIG. 4 illustrates an elevator system 200 illustrating an embodiment of the present invention.
  • the elevator system 200 is generally similar to the elevator systems 10, 50 of FIGS. 1 and 2 except for the placement of the drive motor 24 along the hoistway 12.
  • the drive motor 24 may be provided above the hoistway door 16.
  • the drive motor 24 is substantially enclosed within a housing 202 provided at a remote location at an opposite side of a hallway 204 relative to the hoistway 12 for easy and safe access to the drive motor 24 and any associated equipment from the hallway 204.
  • a housing 300 includes the drive motor 24, a drive unit 302 for supplying high voltage, high current equipment to the elevator car 20, and a drive motor controller 304 for performing operational control and motion control.
  • Operational control includes, for example, storing the location of calls, resetting answered calls, initiating door operation, communicating with a passenger by signaling that a call has been received, providing elevator car position information, and providing a visual indication of an elevator car's direction of travel when the elevator car arrives at a landing.
  • Motion control includes starting and stopping an elevator car by developing the dictation signal that regulates the acceleration, velocity and deceleration of the elevator car, as well as determining whether operation of the elevator car is safe.
  • FIG. 6 shows an elevator system 400 having alternative means for accessing control equipment in accordance with the present invention.
  • the elevator system 400 is similar to the elevator systems 10, 50 of FIGS. 1 and 2 except that the elevator system 400 includes a slidable control cabinet 402 located at an upper side of the hoistway 12 adjacent to a side of a topmost hoistway door 404.
  • the control cabinet 402 supports a drive motor controller 406, and is slidably movable from a first position within the hoistway to a second position in an adjacent elevator hallway for easy and safe access to the controller by maintenance workers at a hallway landing 408.
  • an elevator system 500 includes a drive motor 502 and motor sheave 504 located above a topmost hoistway door 506.
  • a first or large diameter deflector sheave 508 is axially coupled to a second deflector sheave 512, and is located above the topmost hoistway door 506 and in a hoistway 507 above an elevator car 509.
  • the diameter of the first deflector sheave 508 is larger than a diameter of the drive sheave 504 and the diameter of the second deflector sheave 512.
  • a closed-loop, first elongated connector 514 or "belt reducer" is coupled to the drive sheave 504 of the drive motor 502 and to the first deflector sheave 508.
  • a second elongated connector 516 is fixedly coupled to a bracket 518 secured to a sidewall or ceiling of the hoistway 507, extends downwardly and underslings the elevator car 509 via elevator sheaves 520, 520 coupled to an underside of the car, extends upwardly, wraps 180° about the second or small diameter deflector sheave 512, extends downwardly, wraps 180° about a counterweight sheave 522 coupled to a top portion of a counterweight 524 and extends upwardly and is coupled to a sidewall or ceiling of the hoistway via a bracket 526.
  • the drive motor 502 rotates the drive sheave 504 , which in turn rotates the first deflector sheave 508 via the first elongated connector or belt reducer 514 drivingly coupled thereto. Because the first deflector sheave 508 is larger than the diameter of the drive sheave 504, the first deflector sheave 508 rotates at a revolutions per minute (rpm) which is less than that of the drive sheave.
  • the second deflector sheave 512 also rotates at the same rpm as that of the first deflector sheave 508. Therefore, the second deflector sheave 512 which is about the same diameter as that of the drive sheave 504, rotates at a slower rpm relative to that of the drive sheave.
  • the elevator system 500 which employs the belt reducer thereby acts as a type of gearing effect.
  • An advantage of the elevator system 500 is that the machine room is eliminated.
  • a second advantage is that the drive motor 502 is located above the hoistway door 506 for easy and safe access by maintenance workers.
  • a third advantage is that a relatively inexpensive and small gearless drive motor can replace a more complex geared motor.
  • a fourth advantage is that the location of the deflector sheave 508 in the hoistway 507 over the elevator car 509 permits the roping of the elevator car to be relatively simple.
  • a fifth advantage is that the elevator sheaves 520, 520 are located underneath the elevator car 509 to reduce at a minimum the space required between the car and the hoistway ceiling.
  • the size of the drive motor and sheaves may be reduced if the elongated connectors are flat ropes or belts.
  • Flat ropes distribute the elevator load over a greater surface area on the sheaves relative to round ropes.
  • the belts may be made from a high traction material such as urethane or rubber. The greater load distribution and high traction results in a smaller drive motor and sheaves required to support and move an elevator load relative to elevator systems employing round ropes.
  • FIGS. 8 and 9 illustrate an elevator system 600 not in accordance with a further embodiment of the present invention.
  • the elevator system 600 includes a hoistway 12 defined by the surrounding structure 14 of a building.
  • An elevator car 20 is disposed in the hoistway 12 for upward and downward movement therealong.
  • First and second support columns 602 extend along a vertical extent of the hoistway 12 associated with elevator car travel, and are respectively disposed adjacent to oppositely facing sidewalls 606, 608 of the elevator car 20 to support and guide the elevator car 20 for vertical movement therealong.
  • Each of the first and second support columns 602, 604 defines a hollow interior or recess for accommodating an associated counterweight 610 (only one shown) for vertical movement along the associated support column.
  • a drive motor 612 and associated drive sheaves 614, 614 are disposed adjacent to and above an uppermost hoistway door 16 for moving the elevator car 20 vertically along the hoistway 12.
  • First deflector sheaves 616, 616 and second deflector sheaves 618, 618 are disposed on each side of the elevator car 20 and at a top portion within the hoistway 12 for guiding flat rope or belts 620, 620 between the drive motor 612 and the elevator car 20 and the counterweights 610, 610.
  • a principal feature of preferred embodiments 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. 10 .
  • 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.

Claims (8)

  1. Système d'ascenseur, comprenant :
    une gaine (12) comportant une pluralité de portes palières (16 ; 404) ;
    une cabine d'ascenseur (20) et au moins un contrepoids situé dans la gaine ;
    un moteur d'entraînement (24) couplé avec faculté d'entraînement à la cabine d'ascenseur et au contrepoids via des raccords allongés (28 ; 29) ; et
    une armoire de commande (402) et une unité de commande de moteur d'entraînement (406) supportée sur l'armoire de commande, l'armoire de commande étant disposée au moins d'un côté d'une porte palière (404) et caractérisé en ce que ladite armoire de commande (402) peut être déplacée avec faculté de glissement d'une première position au sein de la gaine à une seconde position dans un vestibule d'ascenseur (204) adjacent pour un accès facile et sécurisé à l'unité de commande, en ce que le moteur d'entraînement (24) est situé au-dessus d'une portion supérieure d'une porte palière la plus haute (404) et en ce que le moteur d'entraînement (24) est situé adjacent à, et à travers, un palier de vestibule (18) de la porte palière la plus haute (404).
  2. Système d'ascenseur selon la revendication 1, comprenant en outre un logement (202) permettant d'enfermer sensiblement le moteur d'entraînement (24) par rapport au vestibule (204) adjacent.
  3. Système d'ascenseur selon la revendication 2, dans lequel le logement (202) inclut un panneau mobile.
  4. Système d'ascenseur selon l'une quelconque des revendications précédentes, dans lequel le raccord allongé (28 ; 29 ; 514 ; 516 ; 620) est une corde plate.
  5. Système d'ascenseur selon l'une quelconque des revendications précédentes, incluant en outre au moins deux réas d'ascenseur (40 ; 520) couplés à une face inférieure de la cabine d'ascenseur (20 ; 509), et dans lequel une partie du raccord allongé (28 ; 29 ; 514 ; 516 ; 620) surbaisse la cabine d'ascenseur pour minimiser l'espace libre supérieur entre un sommet de la cabine d'ascenseur et un plafond (27) de la gaine (12).
  6. Système d'ascenseur selon la revendication 5, dans lequel le moteur d'entraînement (24 ; 502 ; 612) inclut un réa d'entraînement (30 ; 504 ; 614), et inclut en outre un premier réa déflecteur (36 ; 508 ; 616) et un second réa déflecteur (38 ; 512 ; 618) couplé axialement au premier réa déflecteur, les premier et second réas déflecteurs étant disposés dans la gaine (12) et au-dessus de la cabine d'ascenseur (20 ; 509), le premier réa déflecteur ayant un diamètre plus grand que celui du second réa déflecteur, et le second réa déflecteur ayant un diamètre environ identique à celui du réa d'entraînement, un raccord additionnel (514) couplant avec faculté d'entraînement le réa d'entraînement au premier réa déflecteur, et ledit raccord allongé couplé au second réa déflecteur et à la cabine d'ascenseur, moyennant quoi les premier et second réas déflecteurs tournent à des vitesses plus petites que le réa d'entraînement pour produire un effet d'engrenage sur le moteur d'entraînement.
  7. Système d'ascenseur selon l'une quelconque des revendications précédentes, dans lequel le moteur d'entraînement (24 ; 502 ; 612) est sans engrenage.
  8. Système d'ascenseur selon la revendication 1, incluant en outre des première (602) et seconde (604) colonnes de support, chacune étant généralement creuse et s'étendant verticalement le long d'une partie verticale de la gaine (12) associée au parcours de la cabine d'ascenseur, les première et seconde colonnes de support étant disposées adjacentes à des parois latérales opposées (606 ; 608) de la cabine d'ascenseur (20 ; 509) l'une par rapport à l'autre, et dans lequel le au moins un contrepoids (26 ; 524 ; 610) inclut des premier et second contrepoids respectivement disposés dans les première et seconde colonnes de support.
EP05017479A 1998-02-26 1999-02-19 Ascenseur avec moteur placé à côté de la porte palière Expired - Lifetime EP1604938B1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US09/031,108 US6401871B2 (en) 1998-02-26 1998-02-26 Tension member for an elevator
US31108 1998-02-26
US163207 1998-09-29
US09/163,207 US7299896B1 (en) 1998-09-29 1998-09-29 Elevator system having drive motor located adjacent to hoistway door
US218990 1998-12-22
US09/218,990 US6739433B1 (en) 1998-02-26 1998-12-22 Tension member for an elevator
EP99908296A EP1042209B1 (fr) 1998-02-26 1999-02-19 Systeme d'ascenseurs dont le moteur d'entrainement est adjacent a la porte paliere

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP99908296A Division EP1042209B1 (fr) 1998-02-26 1999-02-19 Systeme d'ascenseurs dont le moteur d'entrainement est adjacent a la porte paliere
EP99908296.9 Division 1999-02-19

Publications (3)

Publication Number Publication Date
EP1604938A2 EP1604938A2 (fr) 2005-12-14
EP1604938A3 EP1604938A3 (fr) 2008-09-24
EP1604938B1 true EP1604938B1 (fr) 2011-05-25

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Application Number Title Priority Date Filing Date
EP05017479A Expired - Lifetime EP1604938B1 (fr) 1998-02-26 1999-02-19 Ascenseur avec moteur placé à côté de la porte palière

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EP (1) EP1604938B1 (fr)
PT (1) PT1604938E (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103112770B (zh) * 2013-02-07 2015-07-08 苏州莱茵电梯制造有限公司 一种侧置机房曳引式汽车电梯

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1033383B (de) * 1956-12-21 1958-07-03 Stahl Maschinenfabrik R Triebwerk fuer Aufzuege, insbesondere Kleinlastenaufzuege
US3101130A (en) * 1960-10-12 1963-08-20 Silopark S A Elevator system in which drive mechanism is mounted upon the counterweight
JPH0733223B2 (ja) * 1988-05-19 1995-04-12 三菱電機株式会社 小形エレベータの制御盤装置
JPH0764507B2 (ja) * 1988-11-08 1995-07-12 三菱電機株式会社 エレベータの乗場三方枠装置
FI94123C (fi) * 1993-06-28 1995-07-25 Kone Oy Vetopyörähissi
FI95456C (fi) 1994-05-04 1996-02-12 Kone Oy Järjestely hissikuilun seinän aukossa ja kojetaulu
JPH1036023A (ja) 1996-07-11 1998-02-10 Otis Elevator Co ホームエレベーター

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EP1604938A2 (fr) 2005-12-14
PT1604938E (pt) 2011-08-31
EP1604938A3 (fr) 2008-09-24

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