EP1396461B1 - Elevator car door device - Google Patents

Elevator car door device Download PDF

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Publication number
EP1396461B1
EP1396461B1 EP01936875A EP01936875A EP1396461B1 EP 1396461 B1 EP1396461 B1 EP 1396461B1 EP 01936875 A EP01936875 A EP 01936875A EP 01936875 A EP01936875 A EP 01936875A EP 1396461 B1 EP1396461 B1 EP 1396461B1
Authority
EP
European Patent Office
Prior art keywords
door
car
motor
door frame
entrance
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
EP01936875A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1396461A1 (en
EP1396461A4 (en
Inventor
Yoshikatsu C/O Mitsubishi Denki K. K. Hayashi
Takeshi c/o Mitsubishi Denki Kabushiki K. FUJIKI
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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
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Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP1396461A1 publication Critical patent/EP1396461A1/en
Publication of EP1396461A4 publication Critical patent/EP1396461A4/en
Application granted granted Critical
Publication of EP1396461B1 publication Critical patent/EP1396461B1/en
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
    • B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
    • B66B13/02—Door or gate operation
    • 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
    • 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
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/632—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
    • E05F15/643—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by flexible elongated pulling elements, e.g. belts, chains or cables
    • 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 a car door apparatus for an elevator which is mounted on an elevator car for opening and closing a car entrance.
  • Fig. 6 is a front view showing a conventional elevator car disclosed, for example, in Japanese Patent Application Laid-Open No. Hei 2-81888 and Fig. 7 is a side view showing the car door apparatus in Fig. 6 , a car body 1 being shown in cross-section.
  • a car entrance 2 is provided at the front face of the car body 1.
  • a door frame 3 extending along the width direction of the car entrance 2 (the right and left direction in Fig. 6 ) is fixed to the car body 1 above the car entrance 2.
  • a door motor 4 having a motor pulley 5 is mounted on the door frame 3.
  • a reduction pulley 6 having a larger diameter than the motor pulley 5 is provided at the door frame 3.
  • a loop-like reduction belt 7 is wound between the motor pulley 5 and the reduction pulley 6.
  • a drive pulley 8 having a smaller diameter than the reduction pulley 6, which is disposed coaxially with the reduction pulley 6 to be rotated integrally with the reduction pulley 6, is provided at the door frame 3. Further, a following pulley 9 is provided at the door frame 3.
  • a loop-like belt 10 is wound between the drive pulley 8 and the following pulley 9.
  • a door rail 11 extending along the width direction of the car entrance 2 is attached to the door frame 3.
  • Two car doors 12 are suspended from the door rail 11 through door hangers 13.
  • Each door hanger 13 has two rollers 14 which are rotated along the door rail 11.
  • the car doors 12 are connected to the belt 10 through the door hanger 13 and belt holders 15 and 16.
  • a plurality of door shoes 17 are attached to the lower end portion of each of the car doors 12.
  • the door shoes 17 are inserted into a sill groove (not shown) of a sill 18 disposed at lower portion of the car entrance 2.
  • the car body 1 is provided with an upper panel 19 and a ceiling panel 20.
  • the door hangers 13 are connected to the belt 10
  • the door hangers 13 and the car doors 12 are reciprocated along the door rail 11 by the circulation of the belt 10 to open or close the car entrance 2.
  • the car doors 12 are suspended from the door rail 11 and the bottom portions of the car doors 12 are guided by the sill groove of the sill 18 during the opening and the closing of the car doors 12.
  • the cylindrical door motor 4 is fixed to the upper portion of the door frame 3 and the car body 1 side end portion of the door motor 4 is disposed just above the car body 1.
  • the door motor 4 is disposed at a position higher than the ceiling panel 20, the height dimension of whole car is increased.
  • the ceiling panel 20 since the door motor 4 is disposed at a position higher than the ceiling panel 20, the height dimension of whole car is increased.
  • the position of the door motor 4 also need to be raised to prevent the door motor 4 from interfering with the ceiling panel 20 even if the height of the car entrance 2 is not changed. Accordingly, there is a need to increase the height dimension of parts of the car door apparatus such as the door frame 3 or the height dimension of the car doors 12, hence there is need to increase the number of kinds of parts.
  • WO 00/39017 A refers to an elevator door system including an elevator car.
  • a drive motor including an integrated first sheave for moving the doors is mounted on a header bracket adjacent to the first side of the car.
  • a second sheave may be passively rotated by the first drive motor via a rope rotatably coupling the second sheave to the first sheave, or, in addition, be rotated by a second drive motor integrated with the second sheave.
  • the present invention is made to solve the problems mentioned above, and an object of the present invention is to provide a car door apparatus for an elevator which can have a reduced height dimension and in which prevent exerting an influence upon a height dimension of a car.
  • Fig. 1 is a front view showing an elevator car according to a first embodiment of the present invention
  • Fig. 2 is a side view showing the car door apparatus in Fig. 1 , the car body 1 being shown in cross section.
  • a car entrance 2 is provided at the front face of the car body 1.
  • a door frame 21 extending along the width direction of the car entrance 2 (the right and left direction in Fig. 1 ) is fixed to the car body 1 above the car entrance 2.
  • the door frame 21 has an L-shaped cross section, and has a vertical portion 21a opposite a wall portion of the car body 1 located above the car entrance 2 and a horizontal portion 21b horizontally extending from the upper end portion of the vertical portion 21a to a landing side.
  • a door motor 22 is fixed to the bottom portion of the horizontal portion 21b through a plurality of bolts 23.
  • a drive pulley 24 as a first rotating body which is directly driven by and connected to the door motor 22.
  • a following pulley 25 as a second rotating body is provided at the door frame 21.
  • a loop-like belt 26 as a circulating body is wound between the drive pulley 24 and the following pulley 25.
  • a door rail 11 extending along the width direction of the car entrance 2 is attached to the door frame 21.
  • Two car doors 12 are suspended from the door rail 11 through door hangers 13.
  • Each door hanger 13 has two rollers 14 which are rotated along the door rail 11.
  • the car doors 12 are connected to the belt 26 through the door hanger 13 and belt holders 15 and 16.
  • a plurality of door shoes 17 are attached to the lower end portion of each of the car doors 12.
  • the door shoes 17 are inserted into a sill groove 18a of a sill 18 disposed at lower portion of the car entrance 2.
  • the car body 1 is provided with an upper panel 19 and a ceiling panel 20.
  • Fig. 3 is a schematic cross-sectional view of the door motor 22 in Fig. 1 .
  • a stator 33 having a plurality of coils 32 is fixed in a housing 31.
  • a rotor 35 is held in the housing 31 through a plurality of bearings 34.
  • the rotor 35 has a drive shaft 36, and a plurality of permanent magnets 37 fixed to the drive shaft 36 so as to oppose the stator 33.
  • the whole of the door motor 22 is disposed so as to be located below the upper end portion of the door frame 21 and disposed in a region located at the car body 1 side with respect to a surface (the surface A in Fig. 2 ) defined by vertically extending upward a landing-side vertical end surface 18b of the car sill 18.
  • the height dimension of the car door apparatus can be decreased and the influence exerted upon the height dimension of the whole car can be prevented. Accordingly, the height dimension of the whole car can be decreased, thereby decreasing the height dimension of the top portion of the hoistway.
  • the door motor 22 can be reduced in size and thickness while securing the torque required, thereby allowing the door motor 22 to be easily disposed within the range of the height of the door frame 21.
  • the diameter and the thickness of the door motor 22 can be reduced to be about 150mm and about 80mm, respectively. At such a size, the door motor 22 can be easily disposed in the region of the height of the door frame 21 and in the space of the car body 1 side with respect to the surface A without upsizing of the door frame 21.
  • the door frame 21 is provided with the horizontal portion 21b and the door motor 22 is suspended under the horizontal portion 21b, the door motor 22 can be stably supported.
  • the door frame 21 and the door motor 22 are disposed in the car body 1 side with respect to the surface A defined by vertically extending upward the landing-side vertical end surface 18b of the car sill 18, the parts of the car door apparatus are surely prevented from interfering with the parts of the landing side.
  • Fig. 5 is a side view showing a car door apparatus for an elevator according to a second embodiment of the present invention.
  • a vibration isolator 27 is interposed between the horizontal portion 21b of the door frame 21 and the door motor 22.
  • the other constructions are the same as in the first embodiment.
  • vibration of the door motor 22 can be prevented from being transmitted to the car body 1 and the car doors 12 through the door frame 21, so the car doors 12 can be stably opened and closed.
  • the number of the car door 12 and the open type are not limited to the first and second embodiments.
  • the drive pulley 24 and the following pulley 25 are used as the first and second rotating bodies, it is also possible to use sprockets or the like. Also, while, in the first and second embodiments, the belt 26 is used as the circulating body, it is also possible to use a chain, a rope or the like.

Landscapes

  • Elevator Door Apparatuses (AREA)
EP01936875A 2001-06-06 2001-06-06 Elevator car door device Expired - Lifetime EP1396461B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2001/004780 WO2002100753A1 (fr) 2001-06-06 2001-06-06 Dispositif de porte de cabine d'ascenseur

Publications (3)

Publication Number Publication Date
EP1396461A1 EP1396461A1 (en) 2004-03-10
EP1396461A4 EP1396461A4 (en) 2008-10-08
EP1396461B1 true EP1396461B1 (en) 2010-02-24

Family

ID=34141628

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01936875A Expired - Lifetime EP1396461B1 (en) 2001-06-06 2001-06-06 Elevator car door device

Country Status (6)

Country Link
EP (1) EP1396461B1 (ja)
JP (1) JP4531899B2 (ja)
KR (1) KR20030020971A (ja)
CN (1) CN1226179C (ja)
DE (1) DE60141419D1 (ja)
WO (1) WO2002100753A1 (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4531899B2 (ja) * 2001-06-06 2010-08-25 三菱電機株式会社 エレベータのかごドア装置
EP2055663A4 (en) * 2006-08-25 2013-06-05 Mitsubishi Electric Corp DOOR DEVICE FOR ELEVATOR
CN100460303C (zh) * 2006-09-20 2009-02-11 宁波申菱电梯配件有限公司 电梯开门机
KR20090022262A (ko) 2007-08-30 2009-03-04 오티스 엘리베이터 컴파니 엘리베이터 도어 구동장치
JP2010208761A (ja) * 2009-03-09 2010-09-24 Toshiba Elevator Co Ltd エレベータのかごドア装置
KR101173360B1 (ko) 2010-05-11 2012-08-10 오티스 엘리베이터 컴파니 엘리베이터의 카도어 닫힘방지장치
KR101442440B1 (ko) * 2010-08-24 2014-09-17 미쓰비시덴키 가부시키가이샤 엘리베이터의 승강 엘리베이터칸 장치
SG194841A1 (en) * 2011-05-12 2013-12-30 Fujitec Kk Elevator door opening/closing device
JP5936124B2 (ja) * 2012-11-12 2016-06-15 フジテック株式会社 エレベータのドア開閉装置
CN107032218A (zh) * 2017-05-22 2017-08-11 凯尔菱电（山东）电梯有限公司 多门电梯轿厢
JP6937904B2 (ja) 2018-05-22 2021-09-22 三菱電機株式会社 エレベータのかごドア装置
CN112832617A (zh) * 2021-01-14 2021-05-25 湖州富机电梯有限公司 一种新型中分开关门门机

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5895968U (ja) * 1981-12-22 1983-06-29 三菱電機株式会社 エレベ−タかご装置
JPH07100590B2 (ja) * 1987-09-09 1995-11-01 株式会社日立製作所 エレベータのドア開閉装置
JPH03264486A (ja) * 1990-03-12 1991-11-25 Mitsubishi Electric Corp エレベータのかごドア装置
US5323876A (en) * 1992-08-03 1994-06-28 Mcallister Emory C Elevator door mechanism
JPH08259152A (ja) * 1995-03-17 1996-10-08 Mitsubishi Electric Corp エレベータドアの駆動装置
US5659160A (en) * 1995-06-23 1997-08-19 Otis Elevator Company Linear belt door operator
US5701973A (en) * 1995-06-23 1997-12-30 Otis Elevator Company Linear belt door operator
JP3417812B2 (ja) * 1997-09-17 2003-06-16 日本サーボ株式会社 エレベータ・ドアの制御方法とその装置
JPH11292432A (ja) * 1998-03-30 1999-10-26 Otis Elevator Co エレベーターのかごドア開閉装置
US7246688B2 (en) 1998-12-23 2007-07-24 Otis Elevator Company Elevator door system
JP4531899B2 (ja) * 2001-06-06 2010-08-25 三菱電機株式会社 エレベータのかごドア装置

Also Published As

Publication number Publication date
JP4531899B2 (ja) 2010-08-25
EP1396461A1 (en) 2004-03-10
WO2002100753A1 (fr) 2002-12-19
CN1226179C (zh) 2005-11-09
JP2001187681A (ja) 2001-07-10
KR20030020971A (ko) 2003-03-10
DE60141419D1 (de) 2010-04-08
CN1446174A (zh) 2003-10-01
EP1396461A4 (en) 2008-10-08

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