EP2197776A1 - Serrure de sécurité - Google Patents

Serrure de sécurité

Info

Publication number
EP2197776A1
EP2197776A1 EP08840493A EP08840493A EP2197776A1 EP 2197776 A1 EP2197776 A1 EP 2197776A1 EP 08840493 A EP08840493 A EP 08840493A EP 08840493 A EP08840493 A EP 08840493A EP 2197776 A1 EP2197776 A1 EP 2197776A1
Authority
EP
European Patent Office
Prior art keywords
safety
lock
fitted
elevator
guide
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.)
Granted
Application number
EP08840493A
Other languages
German (de)
English (en)
Other versions
EP2197776A4 (fr
EP2197776B1 (fr
Inventor
Ari Ketonen
Seppo Ketoviita
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 Corp
Original Assignee
Kone 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
Application filed by Kone Corp filed Critical Kone Corp
Publication of EP2197776A1 publication Critical patent/EP2197776A1/fr
Publication of EP2197776A4 publication Critical patent/EP2197776A4/fr
Application granted granted Critical
Publication of EP2197776B1 publication Critical patent/EP2197776B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B66B13/14—Control systems or devices
    • B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
    • B66B13/165—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position electrical
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use

Definitions

  • the object of this invention is a safety lock as defined in the preamble of claim 1 , a method for fitting the safety lock into the safety arrangement of an elevator as defined in the preamble of claim 12, and also an elevator as defined in the preamble of claim 15.
  • Safety locks are used as a part of the safety arrangements of a building, e.g. in connection with the landing doors of an elevator.
  • monitoring appliances with which the safety of the locking is verified, are needed in addition to the locking appliance in order to ensure safety.
  • elevator regulators require that the locking system of the landing doors of an elevator must be monitored both by measuring the status of the locking and by measuring the position of the landing door to be locked.
  • the position of the landing door is conventionally measured with a separate safety switch, which is fitted to open under forced control when the landing door opens.
  • the aforementioned safety switch is installed separately to the landing door.
  • Publication EP1441091 describes a safety lock, in which the operation of the manually-operated emergency release appliance is measured with a first safety switch and the locking is measured with a second safety switch.
  • Publication EP1473511 describes a measuring arrangement implemented with Hall sensors e.g. for monitoring the position of a landing door.
  • Publication EP1110900 describes a safety arrangement of the service spaces of an elevator shaft, wherein the safety device monitoring the position of the landing door is mechanically in connection with the door operator.
  • the purpose of this invention is to disclose a new type of safety lock, in which both the monitoring of the locking and the measurement of the position of the landing door is done with a safety switch fitted inside the frame section of the safety lock.
  • Another purpose of the invention is to present the fitting of a safety lock to the safety system of an elevator, more particularly in connection with the landing doors of the elevator.
  • the safety lock according to the invention is characterized by what is disclosed in the characterization part of claim 1
  • the method according to the invention for fitting the safety lock into the safety arrangement of an elevator is characterized by what is disclosed in the characterization part of claim 12
  • the elevator according to the invention is characterized by what is disclosed in the characterization part of claim 15.
  • Other embodiments of the invention are characterized by what is disclosed in the other claims.
  • Some inventive embodiments are also discussed in the descriptive section of the present application.
  • the inventive content of the application can also be defined differently than in the claims presented below.
  • the inventive content may also consist of several separate inventions, especially if the invention is considered in the light of expressions or implicit sub-tasks or from the point of view of advantages or categories of advantages achieved. In this case, some of the attributes contained in the claims below may be superfluous from the point of view of separate inventive concepts.
  • the safety lock comprises a frame section, and also a lock latch in connection with the frame section; additionally the safety lock comprises a catch lever guided via a guide interface, as well as a safety switch fitted inside the frame section.
  • a beak part is made in connection with the guide groove of the lock latch, and the guide of the catch lever is fitted to move in the guide groove in relation to the lock latch in essentially the first position of the catch lever, and the guide of the catch lever is fitted to lock to the beak part in essentially the second position of the catch lever.
  • a guide force by means of which the catch lever can be moved to a second position, can be exerted on the catch lever via the guide interface.
  • the guide interface can comprise e.g.
  • a safety switch in this context refers to a switch that opens under forced control, which can comprise one or more switch elements.
  • the lock latch comprises a guide part, which guide part comprises a guide surface and also a guide groove.
  • the safety switch comprises an operating lever of the safety switch, which operating lever of the safety switch is supported via a roller on the guide surface of the lock latch.
  • the catch lever is fitted to turn around its hinge point and the catch lever comprises a guide, which is fitted into a guide groove.
  • the catch lever comprises an arrester spring and also a closing magnet.
  • the safety lock comprises a countermagnet of the closing magnet fitted into the door jamb, the polarity of which countermagnet is repellent to the closing magnet.
  • the safety lock comprises a closing spring, which closing spring is fitted between the frame section and the lock latch.
  • the safety lock comprises an operating lever of the lock latch, which operating lever is fitted to transmit a force effect exerted on itself to turn the lock latch in relation to the hinge point.
  • the safety lock comprises a position switch (25), which is fitted to change its state on the basis of the position of the lock latch.
  • the lock latch comprises a separate guide part, which guide part is fixed elsewhere on the lock latch.
  • the safety lock comprises an electrical interface in the frame section.
  • the safety switch comprises a protective casing, as well as a first and a second switch element fitted inside the protective casing.
  • a frame section is fitted to the safety lock, and also a lock latch in connection with the frame section; a catch lever guided via the guide interface is fitted to the safety lock; and also a safety switch is fitted inside the frame section of the safety lock; a beak part is made in connection with the guide groove of the lock latch; the guide of the catch lever is fitted to move in the guide groove in relation to the lock latch in essentially the first position of the catch lever; and the guide of the catch lever is fitted to lock to the beak part in essentially the second position of the catch lever; the safety lock is fitted to the landing door of the elevator; and also a signal comprising the position data of the first switch element of the safety switch is taken to the safety circuit of the landing doors of the elevator via the electrical interface of the frame section.
  • the aforementioned signal comprising the position data of the first switch element can be any prior-art signal whatsoever that indicates the position of the switch.
  • the signal can be an analog signal or a digital signal, in parallel or serial form, and it can be transmitted with a signal conductor or e.g. wirelessly, in which case the electrical interface of the safety lock also comprises a transmitter.
  • the aforementioned first switch element can also be fitted into the serial circuit together with the first switch elements of the safety switches of the other landing doors, in which case the aforementioned switch elements together comprise the safety circuit of the landing doors.
  • the safety arrangement of the elevator is fitted to prevent, if necessary, movement of the elevator car by disconnecting the power supply to the elevator motor as well as by controlling the mechanical braking appliance of the elevator car on the basis of the position data of at least the first switch element of the safety switch; and the safety arrangement of the elevator is fitted to limit movement of the elevator car in the elevator shaft to outside the service spaces of the elevator shaft on the basis of the position data of at least the second switch element of the safety switch.
  • the signal comprising the status data of the position switch of the lock is taken to the control of the door operator of the elevator car via the electrical interface of the frame section; and the door operator of the elevator car is fitted to be controlled on the basis of the signal comprising at least the aforementioned status data of the position switch of the lock.
  • the elevator according to the invention comprises a safety lock fitted to a landing door of the elevator.
  • the safety lock comprises: a frame section, and also a lock latch in connection with the frame section; a catch lever guided via a guide interface; and also a safety switch fitted inside the frame section.
  • a beak part is made in connection with the guide groove of the lock latch, and the guide of the catch lever is fitted to move in the guide groove in relation to the lock latch in essentially the first position of the catch lever, and the guide of the catch lever is fitted to lock to the beak part in essentially the second position of the catch lever.
  • the signal comprising the position data of the first switch element of the safety switch is taken to the safety circuit of the landing doors of the elevator via the electrical interface of the frame section of the safety switch.
  • the aforementioned safety lock comprises two safety switches, of which the first safety switch comprises the aforementioned first switch element and the second safety switch comprises the aforementioned second switch element.
  • both the first and the second switch element are fitted to change their switch status on the basis of the movement of the guide part of the lock latch.
  • the safety switch can be enclosed as presented in the invention in a separate protective enclosure inside the frame section, the protection of the safety switch e.g. against dirt and moisture improves, in which case the reliability of the safety switch also improves.
  • the safety lock according to the invention is structurally compact in all its dimensions, so that it is easy to fit in the door, also e.g. when modernizing existing doors to make them compliant with new safety regulations.
  • the mechanical interface of the lock can also be designed such that the lock fits into the existing fixing.
  • the material of the frame section of the lock can also be selected freely, and it can be of steel, in which case the lock will be durable.
  • the cover of the frame section of the lock can be made e.g. from transparent plastic, in which case the structure of the lock can be inspected visually without opening the frame section.
  • the electrical interface of the frame section of the lock can be designed such that the lock can be fitted into the electrical control systems and the safety systems of the building, such as into the safety system of the elevator system as well as into the control system of the door operator of the elevator.
  • the safety lock comprises a closing spring instead of a conventional closing weight, the position of the lock does not affect the closing force, in which case the position of the lock can be freely selected.
  • the safety lock comprises a measurement of the position of a door, such as the landing door of the elevator shaft, from the safety switch fitted inside the frame section, it is possible by means of the safety lock to form monitoring information about a fitter moving into the elevator shaft, and then movement of the elevator car in the elevator shaft can be limited to outside the service spaces of the elevator shaft on the basis of the monitoring information.
  • Fig. 1 presents a safety lock according to the invention.
  • Fig. 2 presents a safety lock according to the invention.
  • Fig. 3 presents the guide part of the lock latch according to the invention.
  • Fig. 4 presents a safety arrangement of an elevator according to the invention, in which is a safety lock according to the invention.
  • Fig. 1 presents a safety lock 1 according to the invention in the closed position.
  • Fig. 2 presents a safety lock according to the invention in the open position.
  • Fig. 3 presents a guide part 9 of the lock latch according to the invention.
  • the safety lock is here fitted to the landing door of the elevator.
  • the safety lock 1 comprises a frame section 2 and also a lock latch 4 in connection with the frame section.
  • the lock latch is fitted to turn around its hinge point 5.
  • the lock latch comprises a stem part 6, a beak part 7 and also a separate guide part 9, which is fixed elsewhere on the lock latch.
  • the guide part 9 is here a separate plastic part to the rest of the lock latch 4 to facilitate manufacture, but it can also be integrated into the rest of the lock latch.
  • the guide part 9 comprises a guide surface 10 and also a guide groove 11.
  • a beak part 20 is made in connection with the guide groove 11.
  • the safety lock also comprises an operating lever 24, of the lock latch, which operating lever is fitted to transmit the force effect exerted on itself to turn the lock latch in relation to the hinge point 5.
  • This force effect can, e.g. in an elevator system, be achieved with the door motor of the elevator, in which case the operating lever 24 of the lock latch is in connection elsewhere to the door operator of the elevator.
  • the force effect can also be achieved e.g. manually with the emergency release appliance of the door.
  • the safety lock also comprises a catch lever 3, by means of which the lock latch 4 can be latched into the open position when the door is open.
  • the safety lock comprises a guide interface 17, 19, in which is a closing magnet 17 fixed to the catch lever. When the door is closed the pushing force from the counter magnet 19, which is fitted into the door jamb 18 at the position of the closing magnet, 19 is exerted on the closing magnet.
  • An arrester spring 16 is fitted around the hinge point 14 of the catch lever, which arrester spring in turn exerts a latching force on the catch lever 3 that opposes the pushing force of the closing magnet.
  • the catch lever When the pushing force of the closing magnet starts to be exerted on the catch lever 3, the catch lever turns to essentially its first position 21 , in which case the guide 15 of the catch lever is able to move in relation to the lock latch 4 in the guide groove 11. In the case the lock latch can turn freely and the lock can be opened and closed.
  • the safety switch 8 comprises a first and a second switch element, that open under forced control, and in connection with these an operating lever 12 of the safety switch, which operating lever is supported via a roller 13 on the guide surface 10 of the lock latch.
  • the operating lever 12 moves as the roller 13 moves along the guide surface when the lock latch is turned.
  • the lock latch 4 is in the closed position the lock beak 7 is out, locking the door.
  • the first and the second switch element of the safety switch 8 are closed.
  • the operating lever 12 of the safety switch moves according to the movement of the guide surface 10, and the change in position of the operating lever forces the switch elements of the safety switch open. In this case the opened switch elements inform that the lock latch is in the open position.
  • This information is transmitted to the safety arrangement of the elevator, in which the information is compared to at least the control command of the car door of the elevator, and if the information does not match, the safety arrangement deduces that the landing door has opened to the elevator shaft. In this case movement of the elevator car in the elevator shaft is limited.
  • One of the two switch elements of the safety switch 8 is also in the safety circuit of the landing doors, so that opening of the switch element disconnects the safety circuit of the landing doors. In this case driving with the elevator is prevented by disconnecting the power supply to both the brake control circuit 29, 31 of the mechanical brake and to the elevator motor 27.
  • the open switch elements of the safety switch 8 indicate the position of the landing door.
  • the switch elements of the safety switch can change their state only after the landing door has closed, in which case locking of the guide latch is cancelled and the guide latch can be moved to the closed position.
  • the safety lock 1 also comprises a closing spring 23, which is fitted between the frame section 2 and the lock latch 4.
  • the closing spring exerts a force on the lock latch 4, which force endeavors to keep the lock latch in the closed position.
  • the position switch 25 presented in Fig. 1 is disposed in the safety lock such that when the lock latch 4 moves to the open position, the guide part 9 presses against the position switch, in which case the position switch 25 changes its state on the basis of the position of the lock latch 4.
  • Fig. 4 presents a safety arrangement of an elevator according to the invention.
  • the elevator car 30 is moved in the elevator shaft 33 with an elevator motor 27 via elevator ropes.
  • the power supply of the motor 27 is controlled with a frequency converter 28.
  • safety locks according to the invention are fitted to the landing doors 26.
  • the safety locks comprise safety switches 8 according to the invention, and the signal comprising the position data of the first switch element of each safety switch 8 is taken to the safety circuit 27 of the landing doors of the elevator via the electrical interface of the frame section 2.
  • the safety circuit 27 in this embodiment of the invention comprises a safety circuit of first switch elements connected in series, and the first switch elements are connected to the safety circuit with conductors led through the electrical interface of the frame section of the safety lock.
  • the signal comprising the position data of the second switch element of each safety switch 8 is taken by a conductor to the measuring circuit 28 of the landing doors of the elevator via the electrical interface of the frame section 2 of the safety lock 1.
  • the measuring circuit comprises a resistor 29 connected in parallel with each second switch element.
  • the parallel connections of the resistors and the second switch elements are connected in series and connected to each other with conductors, and the position of the landing doors is determined by measuring the impedance of the serial circuit.
  • the signal comprising the status data of the position switch element 25 of each safety lock 1 is taken, via the electrical interface of the frame section 2 of the lock, by a signal conductor to the control 32 of the door operator of the elevator car, and the control of the door operator receives information about the position of the landing door from the status data of the position switch 25.
  • the safety arrangement of the elevator is fitted to prevent, if necessary, movement of the elevator car 30 by disconnecting the power supply to the elevator motor 27 as well as by controlling the mechanical braking appliance of the elevator car, such as a machinery brake 29 or a wedge brake 31 of the elevator car, on the basis of the position data of at least the first switch element of the safety switch 8.
  • the safety arrangement of the elevator is also fitted to limit movement of the elevator car in the elevator shaft 33 to outside the service spaces of the elevator shaft on the basis of the position data of at least the second switch element of the safety switch 8.
  • the safety lock according to the invention can be used generally for locking the doors in any building whatsoever, especially in situations in which the safety regulations require locking and monitoring of the position of the door to be locked.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Elevator Door Apparatuses (AREA)

Abstract

L'invention concerne une serrure de sécurité ainsi qu'un procédé d'adaptation de serrure de sécurité dans un système de sécurité d'ascenseur. La serrure de sécurité comprend une partie cadre (2), ainsi qu'un pêne de serrure (4) relié à la partie cadre. La serrure de sécurité comprend aussi un levier l'arrêt (3) guidé par l'intermédiaire d'une interface de guidage (17,19) ainsi qu'un interrupteur de sécurité (8) monté dans la partie cadre. Dans le procédé d'adaptation de serrure de sécurité dans un système de sécurité d'un ascenseur, la serrure de sécurité est montée dans une porte palière (26) de l'ascenseur; et un signal comprenant les données de position du premier élément de commutation de l'interrupteur de sécurité (8) est transmis au circuit de sécurité (27) des portes palières de l'ascenseur par l'intermédiaire de l'interface électrique de la partie cadre (2) de la serrure de sécurité.
EP08840493.4A 2007-10-19 2008-10-15 Serrure de sécurité Not-in-force EP2197776B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20070787A FI121668B (fi) 2007-10-19 2007-10-19 Turvalukko sekä menetelmä turvalukon sovittamiseksi hissin turvajärjestelyyn
PCT/FI2008/000112 WO2009050328A1 (fr) 2007-10-19 2008-10-15 Serrure de sécurité

Publications (3)

Publication Number Publication Date
EP2197776A1 true EP2197776A1 (fr) 2010-06-23
EP2197776A4 EP2197776A4 (fr) 2013-10-09
EP2197776B1 EP2197776B1 (fr) 2015-12-23

Family

ID=38656799

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08840493.4A Not-in-force EP2197776B1 (fr) 2007-10-19 2008-10-15 Serrure de sécurité

Country Status (4)

Country Link
EP (1) EP2197776B1 (fr)
DK (1) DK2197776T3 (fr)
FI (1) FI121668B (fr)
WO (1) WO2009050328A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11040853B2 (en) 2015-05-07 2021-06-22 Otis Elevator Company Elevator system hoistway access control

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010010007B4 (de) 2010-03-02 2018-05-03 Janzhoff Aufzüge GmbH Sicherungseinrichtung für Aufzüge
US11479989B2 (en) 2017-06-01 2022-10-25 Interlock Usa, Inc. Lever action automatic shootbolt operator with magnetically-triggered locking mechanism
AU2018278345B2 (en) 2017-06-01 2023-05-25 Assa Abloy Fenestration Llc Magnetically-triggered lock mechanism
US12163356B2 (en) 2017-06-01 2024-12-10 Interlock Usa, Inc. Lever action automatic shootbolt operator with magnetically-triggered lock mechanism

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1896541A (en) * 1929-04-29 1933-02-07 Otis Elevator Co Electromechanical interlock
US2307542A (en) * 1942-03-18 1943-01-05 Otis Elevator Co Interlock for elevator doors
NL6514354A (fr) * 1965-02-26 1966-08-29
DE10301325B4 (de) * 2003-01-15 2012-04-12 Hans & Jos. Kronenberg Gmbh Türverschluss mit Notentriegelung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11040853B2 (en) 2015-05-07 2021-06-22 Otis Elevator Company Elevator system hoistway access control

Also Published As

Publication number Publication date
EP2197776A4 (fr) 2013-10-09
FI20070787A0 (fi) 2007-10-19
EP2197776B1 (fr) 2015-12-23
DK2197776T3 (en) 2016-01-11
FI20070787L (fi) 2009-04-20
FI121668B (fi) 2011-02-28
WO2009050328A1 (fr) 2009-04-23

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