EP0841288A1 - Housing for elevator car door operating system - Google Patents

Housing for elevator car door operating system Download PDF

Info

Publication number
EP0841288A1
EP0841288A1 EP97308736A EP97308736A EP0841288A1 EP 0841288 A1 EP0841288 A1 EP 0841288A1 EP 97308736 A EP97308736 A EP 97308736A EP 97308736 A EP97308736 A EP 97308736A EP 0841288 A1 EP0841288 A1 EP 0841288A1
Authority
EP
European Patent Office
Prior art keywords
housing
elevator car
door
motor
car door
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Withdrawn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
EP97308736A
Other languages
German (de)
English (en)
French (fr)
Inventor
James A. Rivera
Michael Tracey
William L. King
Bruce P. Swaybill
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
Application filed by Otis Elevator Co filed Critical Otis Elevator Co
Publication of EP0841288A1 publication Critical patent/EP0841288A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/06—Door or gate operation of sliding doors
    • B66B13/08—Door or gate operation of sliding doors guided for horizontal movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • B66B13/14—Control systems or devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/104—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for elevators

Definitions

  • the present invention relates to elevator car door operating systems and, more particularly, to means for supporting and housing the same.
  • elevator car doors are selectively opened and closed by a rotary electric motor driving a mechanical assembly, which typically includes a plurality of moving parts such as gear boxes, a set of drive arms, linkages and cams.
  • the rotary electric motor is typically enclosed in a motor housing and secured to the elevator car by means of a flange or mounting feet.
  • a major drawback in existing elevator car door systems is their susceptibility to misalignments, which require frequent adjustments that result in high maintenance costs. Also, the misalignments degrade the pertormance of the system such that door opening and closing functions are not consistently smooth.
  • a linear motor driven door system provides an alternative to the existing electro-mechanical system.
  • packaging linear motor driven systems is challenging.
  • a typical linear motor for driving elevator car doors includes either a motor secondary or a motor primary that extends the length of the elevator car door travel. Housing and supporting such long motor parts becomes expensive and adds significant weight to the moving elevator car.
  • an elevator car door operating system for driving an elevator car door comprising:
  • the system housing may also support a termination box with moving flexible cables, and a positioning and synchronization system.
  • an elevator car door operating system 10 for opening and closing a pair of elevator car doors 12 includes a multi-functional system housing 14 that houses and supports all parts of the elevator car door operating system.
  • the system housing 14 comprises integrally formed upper and lower housing portions 16 and 18.
  • the lower housing portion 18 includes a protruding bend portion 20 to support a track 22.
  • the track 22 extends the length of the door travel and is bolted to the protruding bend 20 by means of bolts 24.
  • the track includes an upper roller surface 28 and a lower roller surface 30.
  • a plurality of hanger rollers 34 that are attached to each door hanger 36, come into contact with the upper roller surface 28.
  • a plurality of upthrust rollers 38 that are also attached to each door hanger 36, have a minimal clearance from the lower roller surface 30.
  • the lower housing portion also supports a synchronization and positioning system 39.
  • the upper housing portion 16 includes an integrally formed top flange 40, and houses a linear motor secondary 42.
  • the motor secondary 42 is attached to the housing 16 by means of a plurality of joints 44.
  • Each joint 44 includes a standoff to provide spacing between the housing 16 and the motor secondary, and a swivel to allow flexibility of the motor secondary 42 about each joint 44.
  • the upper housing portion 16 also houses a termination box 50 with a pair of moving flexible cables 52, as best seen in FIG. 1.
  • the termination box 50 is mounted centrally, underneath the top flange 40, with each flexible cable 52 originating from the termination box 50 and terminating at a respective motor primary 54.
  • Each motor primary 54 is fixedly attached to a respective one of the door hangers 36.
  • Each motor primary includes a primary winding 56 and a backiron 58 spaced apart by a plurality of spacers 60 to define a magnetic air gap 62 therebetween.
  • the moving flexible cables 52 transmit energy from the termination box 50 to the respective motor primaries 54.
  • the motor secondary 42 fits within the magnetic air gap 62 of the motor primary 54.
  • the motor primary cooperates with the motor secondary to generate thrust forces.
  • the thrust forces move the motor primaries and the respective door hangers to which the motor primaries are attached.
  • the hanger rollers 34 glide atop the upper roller surface 28 of the track 22.
  • the upthrust rollers 38 come in contact with the lower roller surface 30 of the track 22 in the event the doors are subjected to upward thrust.
  • the multi-functional system housing 16 of the present embodiment not only supports the rollers of the door hangers, but also functions as an integral housing for the motor secondary.
  • the housing eliminates the need for an additional separate housing to shield and support the motor secondary.
  • the housing provides rigid support to the motor secondary and has the motor secondary flexibly mounted thereto.
  • the housing shields the motor secondary from external elements and includes the top flange to prevent hoistway debris or drippage from reaching the motor secondary.
  • the present embodiment having the housing of the motor secondary integral with the track for the door hangers, reduces the potential for misalignment between the motor primaries and the motor secondary.
  • the housing also supports the termination box 50 and the positioning and synchronization system 39.
  • system housing is formed from steel.
  • the present invention provides a high performance operating system for opening and closing elevator car doors; and furthermore ensures proper alignment between parts of a linear motor driving the elevator car door operating system; and furthermore reduces the overall weight of the elevator car door operating system; and furthermore minimizes the number of parts necessary to support the elevator car door operating system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Door Apparatuses (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
EP97308736A 1996-11-07 1997-10-31 Housing for elevator car door operating system Withdrawn EP0841288A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US74627496A 1996-11-07 1996-11-07
US746274 1996-11-07

Publications (1)

Publication Number Publication Date
EP0841288A1 true EP0841288A1 (en) 1998-05-13

Family

ID=25000150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97308736A Withdrawn EP0841288A1 (en) 1996-11-07 1997-10-31 Housing for elevator car door operating system

Country Status (5)

Country Link
EP (1) EP0841288A1 (pt)
JP (1) JPH10139324A (pt)
KR (1) KR19980042065A (pt)
CN (1) CN1182045A (pt)
BR (1) BR9705194A (pt)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1524233A1 (en) * 2003-10-14 2005-04-20 Inventio Ag Clutch for coupling a car door of an elevator car with a landing door of an elevator system
US7255203B2 (en) 2003-10-14 2007-08-14 Inventio Ag Clutch for coupling a car door of an elevator car with a landing door of an elevator system
US8448751B2 (en) 1998-12-23 2013-05-28 Otis Elevator Company Elevator door system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101148152B1 (ko) * 2008-07-04 2012-05-23 미쓰비시덴키 가부시키가이샤 엘리베이터 도어 장치
CN103771220A (zh) * 2014-01-27 2014-05-07 中起重工（大连）有限公司 无缆电梯

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03264486A (ja) * 1990-03-12 1991-11-25 Mitsubishi Electric Corp エレベータのかごドア装置
JPH04363489A (ja) * 1991-06-11 1992-12-16 Toyota Auto Body Co Ltd 自動開閉ドアの制御装置
US5172518A (en) * 1990-11-07 1992-12-22 Kawasaki Jukogyo Kabushiki Kaisha Driving apparatus for doors
EP0709337A2 (en) * 1994-10-31 1996-05-01 Kone Oy Overhead supporting beam for an elevator door and a door mechanism arrangement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03264486A (ja) * 1990-03-12 1991-11-25 Mitsubishi Electric Corp エレベータのかごドア装置
US5172518A (en) * 1990-11-07 1992-12-22 Kawasaki Jukogyo Kabushiki Kaisha Driving apparatus for doors
JPH04363489A (ja) * 1991-06-11 1992-12-16 Toyota Auto Body Co Ltd 自動開閉ドアの制御装置
EP0709337A2 (en) * 1994-10-31 1996-05-01 Kone Oy Overhead supporting beam for an elevator door and a door mechanism arrangement

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 016, no. 082 (M - 1215) 27 February 1992 (1992-02-27) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 237 (M - 1408) 13 May 1993 (1993-05-13) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8448751B2 (en) 1998-12-23 2013-05-28 Otis Elevator Company Elevator door system
EP1524233A1 (en) * 2003-10-14 2005-04-20 Inventio Ag Clutch for coupling a car door of an elevator car with a landing door of an elevator system
US7255203B2 (en) 2003-10-14 2007-08-14 Inventio Ag Clutch for coupling a car door of an elevator car with a landing door of an elevator system

Also Published As

Publication number Publication date
BR9705194A (pt) 1999-09-14
CN1182045A (zh) 1998-05-20
JPH10139324A (ja) 1998-05-26
KR19980042065A (ko) 1998-08-17

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