EP0426057A2 - Arrangement de verrouillage d'une porte d'une cabine d'ascenseur - Google Patents

Arrangement de verrouillage d'une porte d'une cabine d'ascenseur Download PDF

Info

Publication number: EP0426057A2
Authority: EP; European Patent Office
Prior art keywords: lock; actuating lever; lever; locking; door
Prior art date: 1989-10-30
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.): Granted

Application number

EP90120656A

Other languages

German (de)

English (en)

Other versions

EP0426057B1 (fr

EP0426057A3 (en

Inventor

Matti Kujala

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.)

Kone Elevator GmbH

Original Assignee

Kone Elevator GmbH

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.)

1989-10-30

Filing date

1990-10-27

Publication date

1991-05-08

1990-10-27 Application filed by Kone Elevator GmbH filed Critical Kone Elevator GmbH

1991-05-08 Publication of EP0426057A2 publication Critical patent/EP0426057A2/fr

1992-07-22 Publication of EP0426057A3 publication Critical patent/EP0426057A3/en

1995-08-23 Application granted granted Critical

1995-08-23 Publication of EP0426057B1 publication Critical patent/EP0426057B1/fr

2010-10-27 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

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
- B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers

Definitions

the present invention relates to an arrangement for the locking of the door of an elevator car as defined in the introductory part of claim 1, said arrangement being designed to lock the car door so that it can never be opened when the elevator is moving or has stopped between landings e.g. due to a power failure.
patent publication GB 2206331 proposes an electromechanical arrangement for the locking of the door of an elevator car that keeps the car door locked when the elevator is moving and generally also when the elevator stops between landings e.g. due to a power failure.
a problem associated with the previously known techniques is that, when a power failure occurs, the doors are only locked in position after the failure has already occurred, and the locking is performed using a separate locking device, which means that immediately after the power failure there is a short interval during which it is possible to open the car doors manually even when the car is between landings.
the object of the present invention is to eliminate the above-mentioned drawbacks.
a specific object of the invention is to produce an arrangement for the locking of the door of an elevator car that keeps the elevator doors locked at all times when the elevator is moving or when it is standing still between landings, while still allowing the doors to be freely opened even during power failures when the elevator car is standing at a landing.
the arrangement of the invention for the locking of the door of an elevator car comprises a lock which locks the doors the construction of the lock being in no way defined by the invention.
the arrangement comprises guide surfaces or equivalent areas or zones provided at the landings, allowing the presence of the elevator car at the landing to be recognized using a suitable means.
the arrangement comprises an actuating lever for unlatching the lock, said lever being supported by the frame of the arrangement via a linkage and its motions controlled by said guide surfaces, and a transmission means connecting the lock and the actuating lever.
the transmission means may be a suitable lever or linkage or a suitable connection consisting of ropes, chains or wire ropes.
the locking arrangement of the invention comprises an electrically operated actuator designed to shift the fulcrum of the actuating lever in such a way that the part of the actuating lever which uses the guide surface as a bearing will remain at a distance from said surface, and a counter device which moves the fulcrum in the opposite direction when the actuator is not operating, so that the actuating lever, leaning against the guide surface, will unlatch the lock.
the electrically operated actuator may consist e.g. of an electromagnet whose attraction is applied to a suitable spindle.
the counter device is preferably a spring connected to the other end of this spindle, so that when the magnet releases, the spring will return the spindle to the opposite extreme position.
the counter device may also consist of some other known structure or device that returns the spindle to its other extreme position when the magnet releases.
the essential feature of the locking arrangement of the invention is that the actuating lever producing the unlocking thrust motion uses the guide surfaces at the landings as its bearings. Therefore, when the elevator car is between landings, the actuating lever motions produced by the actuator or the counter device will not cause any motion of that end of the actuating lever which is linked with the lock; instead, in this case the actuating lever will only pivot about its joint. However, when the elevator car enters a landing zone, one end of the actuating lever will lean against the corresponding guide surface, with the result that its other end will move, transmitting an unlatching motion to the lock.
the essential feature of the locking arrangement of the invention is that the fulcrum of the actuating lever is shifted in a controlled fashion in such manner that in one of its extreme positions the actuating lever cannot turn so as to unlatch the lock, whereas in the other extreme position the actuating lever can be turned so as to unlatch the lock, but only on condition that one end of the actuating lever leans against a guide surface, in which case the other end will undergo a motion that results in the unlatching of the lock.
the invention has the following advantages over previously known techniques: -
the locking arrangement can be installed on any type of door regardless of the door operating mechanism used.
the locking arrangement involves no restrictions as to the door locks used but is compatible with nearly all locks in current use.
- If a power failure occurs while the elevator is travelling between floors, the door will remain locked and can never be opened between floors, not even during a short instant.
the device is immune to disturbances in the control system: Even if, due to a malfunction, the elevator control system should instruct the car doors to open while the car is outside the landing zone, the doors will remain reliably locked.
the elevator has stopped between landings and is moved manually to a floor level, the lock will open automatically without requiring any further action.
the locking arrangement of the invention locks both door leaves simultaneously and without backlash by means of the locking bar of the lock, so that no separate locking devices are required to take care of the backlash.
a locking arrangement as provided by the invention and illustrated by the drawings comprises a lock 1 whose locking bar 13 latches the lock plates 14 mounted on the elevator doors so as to render them immovable.
a lever mechanism 4 comprising a straight bar 15, one end of which is pivoted on one end 8 of an actuating lever 7, the other end 10 of this lever being provided with a bearing roller 16 which, in certain positions, leans against the guide surfaces 2 provided in the landing zones.
the actuating lever 7 is pivoted at point 17 on a bell crank 9, which in turn is pivoted at point 18 (fig. 2) on the frame of the device.
the arrangement comprises an electromagnet used as an actuator 5 and a spring used as a counter device 6, said components being connected by a connecting rod 19.
the bell crank 9 is linked with the connecting rod 19 by a lever structure 12 consisting of a first arm rigidly joined with the bell crank and a second arm linking the free end of the first lever with the connecting rod 19, so that when the connecting rod is moved by the electromagnet or the counter spring, the lever structure 12 will cause the bell crank 9 to turn about its fulcrum 18.
Fig. 4 illustrates the principle of the arrangement of the bell crank 9 and the lever structure 12.
the bell crank 9 consists of a rigid angular body pivoted by its elbow 18 on the frame of the arrangement, one end 17 of the angular body being connected to the actuating lever 7 and the other end 22 to the lever structure 12 linking this end of the bell crank with the connecting rod 19.
the motion of the connecting rod 19 will cause the bell crank to turn about point 18, thereby shifting the position of the fulcrum 17 of the actuating lever 7.
the locking arrangement of the invention functions as follows.
a voltage is supplied to the magnet 5, which therefore attracts the connecting rod 19, causing the lever structure 12 to turn the bell crank 9 to the position shown in fig. 1.
a clearance is produced between the bearing roller 16 and the guide surface 5. Because of this clearance, the floors where the elevator will not stop can be passed by without the bearing roller 16 hitting the guide surfaces, resulting in a smoother and quieter elevator travel.
the spring-loaded locking bar 13 of the lock 1 is in its lower position, locking both door leaves 24 by means of lock plates 14.
Fig. 3 illustrates a situation where the magnet 5 has released, i.e. the spring 6 has drawn the connecting rod 19 to the lower position. Since the actuating lever 7 is outside the region of the guide surface 2, no bearing is provided for the actuating lever 7, which is why bar 15 receives no thrust that would open the lock 1. This corresponds to a situation where the elevator car has stopped between landings e.g. due to a power failure.
the arrangement of the invention allows the fulcrum 17 of the actuating lever 7 to be shifted to different positions in different situations, so that the actuating lever 7 will act in the desired manner, i.e. the door lock will only unlatch when the car is at a landing, and even then only if desired.

Landscapes

Elevator Door Apparatuses (AREA)
Maintenance And Inspection Apparatuses For Elevators (AREA)
Cage And Drive Apparatuses For Elevators (AREA)
Steroid Compounds (AREA)

EP90120656A 1989-10-30 1990-10-27 Arrangement de verrouillage d'une porte d'une cabine d'ascenseur Expired - Lifetime EP0426057B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FI895147		1989-10-30
FI895147A FI85363C (fi)	1989-10-30	1989-10-30	Laosningsanordning foer doerr i hisskorg.

Publications (3)

Publication Number	Publication Date
EP0426057A2 true EP0426057A2 (fr)	1991-05-08
EP0426057A3 EP0426057A3 (en)	1992-07-22
EP0426057B1 EP0426057B1 (fr)	1995-08-23

Family

ID=8529253

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP90120656A Expired - Lifetime EP0426057B1 (fr)	1989-10-30	1990-10-27	Arrangement de verrouillage d'une porte d'une cabine d'ascenseur

Country Status (4)

Country	Link
EP (1)	EP0426057B1 (fr)
AT (1)	ATE126780T1 (fr)
DE (2)	DE426057T1 (fr)
FI (1)	FI85363C (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0709334A1 (fr) *	1994-10-31	1996-05-01	Kone Oy	Appareil de verrouillage de la porte d'une cabine d'ascenseur et procédé pour bloquer et débloquer une porte de cabine
US7252179B2 (en)	2002-04-22	2007-08-07	Wittur Ag	Elevator-door latching and opening device
CN102502382A (zh) *	2011-12-26	2012-06-20	日立电梯（中国）有限公司	重锤式轿厢门锁机构

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB352750A (en) *	1930-07-24	1931-07-16	Schindler & Co	Improvements in safety locking devices for lift shaft doors
DE598407C (de) *	1932-04-08	1934-06-09	Ohg Stigler	Zusatzanordnung fuer Sicherheitsschloesser von Aufzugstueren
GB1047977A (en) *	1964-09-01	1966-11-09	Ace Machinery Ltd	Improvements in or relating to hoists
US4512443A (en) *	1982-03-24	1985-04-23	Dewhurst & Partner P.L.C.	Lift door control apparatus
GB2206331B (en) *	1987-05-26	1991-10-02	Otis Elevator Plc	Elevator car door locking mechanism
JPS6422791A (en) *	1987-07-18	1989-01-25	Mitsubishi Electric Corp	Door locking device for elevator

1989
- 1989-10-30 FI FI895147A patent/FI85363C/fi not_active IP Right Cessation
1990
- 1990-10-27 DE DE199090120656T patent/DE426057T1/de active Pending
- 1990-10-27 DE DE69021827T patent/DE69021827T2/de not_active Expired - Fee Related
- 1990-10-27 AT AT90120656T patent/ATE126780T1/de active
- 1990-10-27 EP EP90120656A patent/EP0426057B1/fr not_active Expired - Lifetime

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0709334A1 (fr) *	1994-10-31	1996-05-01	Kone Oy	Appareil de verrouillage de la porte d'une cabine d'ascenseur et procédé pour bloquer et débloquer une porte de cabine
US5690189A (en) *	1994-10-31	1997-11-25	Kone Oy	Apparatus and method for locking and unlocking the door of an elevator car
CN1099995C (zh) *	1994-10-31	2003-01-29	科恩股份公司	闭锁电梯厢门的装置及开闭厢门的方法
US7252179B2 (en)	2002-04-22	2007-08-07	Wittur Ag	Elevator-door latching and opening device
CN102502382A (zh) *	2011-12-26	2012-06-20	日立电梯（中国）有限公司	重锤式轿厢门锁机构
CN102502382B (zh) *	2011-12-26	2013-08-14	日立电梯（中国）有限公司	重锤式轿厢门锁机构

Also Published As

Publication number	Publication date
DE69021827T2 (de)	1996-03-21
EP0426057B1 (fr)	1995-08-23
EP0426057A3 (en)	1992-07-22
DE69021827D1 (de)	1995-09-28
FI85363B (fi)	1991-12-31
DE426057T1 (de)	1991-11-28
FI85363C (fi)	1992-04-10
ATE126780T1 (de)	1995-09-15
FI895147A0 (fi)	1989-10-30

Legal Events

Date	Code	Title	Description
1991-03-23	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1991-05-08	17P	Request for examination filed	Effective date: 19901228
1991-05-08	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): AT BE DE FR GB IT NL SE
1991-07-15	TCAT	At: translation of patent claims filed
1991-07-22	ITCL	It: translation for ep claims filed	Representative=s name: JACOBACCI CASETTA & PERANI S.P.A.
1991-08-16	EL	Fr: translation of claims filed
1991-10-16	TCNL	Nl: translation of patent claims filed
1991-11-28	DET	De: translation of patent claims
1992-06-02	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1992-07-22	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): AT BE DE FR GB IT NL SE
1994-07-06	17Q	First examination report despatched	Effective date: 19940520
1995-07-07	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1995-08-23	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT BE DE FR GB IT NL SE
1995-08-23	REF	Corresponds to:	Ref document number: 126780 Country of ref document: AT Date of ref document: 19950915 Kind code of ref document: T
1995-09-28	REF	Corresponds to:	Ref document number: 69021827 Country of ref document: DE Date of ref document: 19950928
1995-10-04	ITF	It: translation for a ep patent filed
1995-10-13	ET	Fr: translation filed
1996-06-28	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1996-06-28	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1996-08-14	26N	No opposition filed
1998-09-11	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19980911 Year of fee payment: 9
1998-09-14	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: SE Payment date: 19980914 Year of fee payment: 9
1998-09-15	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: AT Payment date: 19980915 Year of fee payment: 9
1998-09-17	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19980917 Year of fee payment: 9
1998-09-23	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19980923 Year of fee payment: 9
1998-09-25	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19980925 Year of fee payment: 9
1998-10-16	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: BE Payment date: 19981016 Year of fee payment: 9
1999-10-27	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19991027 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19991027
1999-10-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19991030
1999-10-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19991031
2000-04-30	BERE	Be: lapsed	Owner name: KONE ELEVATOR G.M.B.H. Effective date: 19991031
2000-05-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000501
2000-06-14	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19991027
2000-06-19	EUG	Se: european patent has lapsed	Ref document number: 90120656.5
2000-06-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000630
2000-07-03	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee	Effective date: 20000501
2000-08-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000801
2000-08-11	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
2005-10-27	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20051027

Publication	Publication Date	Title
EP0709334B1 (fr)	2000-05-24	Appareil de verrouillage de la porte d'une cabine d'ascenseur et procédé pour bloquer et débloquer une porte de cabine
US4934488A (en)	1990-06-19	Door lock for an elevator car
US6168216B1 (en)	2001-01-02	Vehicle door latch device
US5174417A (en)	1992-12-29	Device and method for the actuating and unlatching of the shaft doors of an elevator
US6386597B1 (en)	2002-05-14	Dual latch retraction system for exit bar
KR100373242B1 (ko)	2003-02-25	슬라이딩 도어의 록킹콘트롤러
US20050218661A1 (en)	2005-10-06	Motor vehicle lock
MX9202212A (es)	1992-11-01	Dispositivo accionador de puerta con mecanismo bloqueador para elevadores.
US5139112A (en)	1992-08-18	Elevator car door lock
US6688042B2 (en)	2004-02-10	Central lock mechanism
EP0850189B1 (fr)	2004-07-21	Procedure d'actionnement de la porte paliere d'un ascenseur, et dispositif d'accouplement de porte
AU2004321993A1 (en)	2006-02-09	Electromagnetically operated elevator door lock
EP0426057A2 (fr)	1991-05-08	Arrangement de verrouillage d'une porte d'une cabine d'ascenseur
CN102782236A (zh)	2012-11-14	解锁装置
KR20010012676A (ko)	2001-02-26	도어 메카니즘
US20250382157A1 (en)	2025-12-18	Elevator
US5105916A (en)	1992-04-21	Elevator door coupling device
EP1290301B1 (fr)	2008-08-20	Procede et appareil pour verrou
EP0484171B1 (fr)	1995-08-09	Système d'une porte d'un ascenseur
US312575A (en)	1885-02-17	Door-latch
US759703A (en)	1904-05-10	Safety-lock for elevator-shafts.
CA2048552A1 (fr)	1992-05-01	Methode d'impregnation du fer avec une matiere resistant a l'usure