EP0426057B1 - 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

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Publication number
EP0426057B1
EP0426057B1 EP90120656A EP90120656A EP0426057B1 EP 0426057 B1 EP0426057 B1 EP 0426057B1 EP 90120656 A EP90120656 A EP 90120656A EP 90120656 A EP90120656 A EP 90120656A EP 0426057 B1 EP0426057 B1 EP 0426057B1
Authority
EP
European Patent Office
Prior art keywords
actuating lever
lock
locking
elevator car
lever
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
EP90120656A
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German (de)
English (en)
Other versions
EP0426057A2 (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.)
Filing date
Publication date
Application filed by Kone Elevator GmbH filed Critical Kone Elevator GmbH
Publication of EP0426057A2 publication Critical patent/EP0426057A2/fr
Publication of EP0426057A3 publication Critical patent/EP0426057A3/en
Application granted granted Critical
Publication of EP0426057B1 publication Critical patent/EP0426057B1/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
    • 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.
  • DE-A-598 407 which describes an arrangement for the locking of the shaft doors of an elevator according to the first part of claim 1.
  • the known arrangement allows to keep the shaft doors locked at all times when the elevator is moving or when it is standing between landings, while allowing the doors to be freely opened even during power failures when the elevator car is standing at landing.
  • the actuating lever for unlatching the locks is kept away from the guide surface of the elevator car and is moved to be against the guide surface only when the elevator car approaches to the destined landing. For effecting unlatching and latching of the locks certain geometrical relations in the connection between the actuating lever and the lock have to be obeyed and an additional spring is needed.
  • GB-A-352 750 Another state of the art for a safety locking device for lift shaft doors is represented by GB-A-352 750.
  • This known device consists mainly of three members: A rotatable locking member, the unlocking lever and a control lever actuated by a control gear of the lift.
  • the locking member is coupled with the control lever over the unlocking lever which is controlled by the cage.
  • 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 may comprise 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 may comprise 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 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.
  • 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 actualing 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)

Claims (8)

  1. Dispositif de verrouillage de la porte d'une cabine d'ascenseur comprenant
    - un verrou (1) qui bloque la porte (24) ;
    - des surfaces de guidage (2) prévues au niveau des paliers ;
    - un levier d'actionnement (7) monté à pivot sur un levier coudé (9) qui est monté sur le cadre du dispositif, le mouvement dudit levier d'actionnement (7) étant commandé par lesdites surfaces de guidage (2) pour le déblocage du verrou (1) ;
    - un moyen de transmission (4) reliant le verrou et le levier d'actionnement ;
    - un actionneur (5) à commande électrique destiné à déplacer le levier d'actionnement (7) de telle manière que la partie du levier d'actionnement qui utilise les surfaces de guidage en tant que support reste à une certaine distance de ladite surface, et
    - un dispositif antagoniste (6) destiné à déplacer le levier d'actionnement (7) dans la direction opposée afin que, lorsque la cabine d'ascenseur se trouve au niveau d'un palier le levier d'actionnement, prenant appui contre la surface de guidage, débloque le verrou,
    - tandis que, entre des paliers, le levier d'actionnement (7), du fait qu'il n'est pas soutenu par une surface de guidage (2), laissera le verrou en position bloquée,
    caractérisé en ce que
    - ledit actionneur (5) et ledit dispositif antagoniste (6) sont reliés au levier coudé (9) afin de déplacer le point de pivotement (17) du levier d'actionnement (7), et
    - en ce qu'une extrémité (8) du levier d'actionnement (7) est montée à pivot sur le moyen de transmission reliant le levier d'actionnement (7) au verrou (1).
  2. Dispositif de verrouillage selon la revendication 1, caractérisé en ce que l'actionneur (5) est un moyen tracteur commandé par un électroaimant.
  3. Dispositif de verrouillage selon la revendication 1, caractérisé en ce que le dispositif antagoniste (6) est un ressort.
  4. Dispositif de verrouillage selon la revendication 1, caractérisé en ce que le moyen tracteur (5) et le dispositif antagoniste (6) constituent en ensemble rigide à déplacement solidaire.
  5. Dispositif de verrouillage selon la revendication 1, caractérisé en ce qu'une extrémité (10) du levier d'actionnement (7) forme un point d'inflexion (11) en utilisant la surface de guidage (2) en tant que support.
  6. Dispositif de verrouillage selon la revendication 1, caractérisé en ce que le levier coudé (9) est relié à l'ensemble constitué par l'actionneur et le dispositif antagoniste par une structure formant levier (12).
  7. Dispositif de verrouillage selon la revendication 6, caractérisé en ce que le levier coudé (9) consiste en un élément angulaire rigide, comportant à une extrémité le point de pivotement (17), et monté à pivot sur la structure formant levier (12) par son autre extrémité, ledit élément pouvant pivoter entre ses extrémités sur le cadre du dispositif.
  8. Dispositif de verrouillage selon l'une quelconque des revendications 1 à 7, caractérisé en ce que les deux panneaux (24) de la porte de la cabine d'ascenseur sont pourvus de plaques de blocage (14) qui sont verrouillées par la barrette (13) du verrou (1).
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 EP0426057A2 (fr) 1991-05-08
EP0426057A3 EP0426057A3 (en) 1992-07-22
EP0426057B1 true 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)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI96676C (fi) * 1994-10-31 1996-08-12 Kone Oy Hissin korinoven lukituslaitteisto ja menetelmä korinoven lukitsemiseksi ja vapauttamiseksi
AT412339B (de) 2002-04-22 2005-01-25 Wittur Gmbh Vorrichtung zur betätigung und verriegelung von aufzugstüren mit mitnehmerkufen
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

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

Also Published As

Publication number Publication date
DE426057T1 (de) 1991-11-28
EP0426057A2 (fr) 1991-05-08
FI85363C (fi) 1992-04-10
FI895147A0 (fi) 1989-10-30
DE69021827D1 (de) 1995-09-28
ATE126780T1 (de) 1995-09-15
EP0426057A3 (en) 1992-07-22
FI85363B (fi) 1991-12-31
DE69021827T2 (de) 1996-03-21

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