EP0260860A1 - Mécanisme pour serrure - Google Patents

Mécanisme pour serrure Download PDF

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Publication number
EP0260860A1
EP0260860A1 EP87307911A EP87307911A EP0260860A1 EP 0260860 A1 EP0260860 A1 EP 0260860A1 EP 87307911 A EP87307911 A EP 87307911A EP 87307911 A EP87307911 A EP 87307911A EP 0260860 A1 EP0260860 A1 EP 0260860A1
Authority
EP
European Patent Office
Prior art keywords
locking
arm
actuator
bar
head
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
EP87307911A
Other languages
German (de)
English (en)
Other versions
EP0260860B1 (fr
Inventor
Malcolm John White
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.)
Gunnebo UK Ltd
Original Assignee
Chubb and Sons Lock and Safe Co Ltd
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 Chubb and Sons Lock and Safe Co Ltd filed Critical Chubb and Sons Lock and Safe Co Ltd
Publication of EP0260860A1 publication Critical patent/EP0260860A1/fr
Application granted granted Critical
Publication of EP0260860B1 publication Critical patent/EP0260860B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0676—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle
    • E05B47/0684—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle radially
    • E05B47/0688—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle radially with a pivotally moveable coupling element
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • E05B47/0003—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core

Definitions

  • the present invention relates to locking mechanisms. More particularly, though not exclusively, the invention seeks to provide an electromechanical locking mechanism which can be used in an electronically-controlled code-recognition lock for safes and the like security enclosures, which is mechanically simple and highly reliable in operation, and operable with minimal power consumption.
  • the invention accordingly resides in a locking mechanism comprising a bolt or other such locking member movable between locking an unlocking positions; a manually or otherwise operable control member adapted to be coupled to the locking member for moving the latter between its locking an unlocking positions; and an electromechanical actuator arranged for selectively disabling or enabling the coupling of the control member to the locking member such as to move the latter from its locking to its unlocking position.
  • said actuator comprises first magnetic means including an element of magnetisable material and means for applying a pulsed magnetising field thereto, the said magnetisable material being such that said element is capable of repeated reversals of its magnetic polarity in response to the application thereto of magnetising pulses of reverse senses and is capable of remaining magnetised with the last-induced polarity between such pulses; and second magnetic means for providing a predetermined magnetic field to interact with the remanent magnetism of said element; whereby said actuator is baised by the magnetic interaction between said element and said second magnetic means to move to a first or a second position respectively to disable or enable said coupling of the control member to the locking member, in dependence upon the sense of the last-applied said pulse.
  • the magnetisable element in the aforesaid actuator may be in the form of a bar pivoted at one end and surrounded by a coil through which the magnetising pulses are applied, while the aforesaid second magnetic means comprise a permanent magnet defining opposed poles between which the opposite end of the bar lies, whereby the bar is influenced at any instant to pivot towards one or other of the permanent magnet poles in dependence upon the sense of the last-induced polarity of the bar.
  • the said opposite end of the bar, or a member carried by it can therefore serve as an abutment to block or free the aforesaid coupling of the control member to the locking member in the two respective pivotal positions of the bar.
  • the magnetisable element in effect "remembers" its most recent command so that, for example, if the actuator is blocked or otherwise restrained from moving into its position appropriate to that command at the instant when the correspondng pulse is given, it will nevertheless move into and remain in the correct position under the remanent magnetic influence as soon as the aforesaid restraint is removed, without having to be pulsed again at that time.
  • control member is in the form of a rotatable disc or sector having a coupling notch in its periphery, and an arm is articulated to the locking member having a head adapted to engage in sa id notch; in the locking position of the mechnism the head of said arm lying in a position out of driving engagement with said notch and preferably facing an abutment to resist forced movement of the locking member towards its unlocking position; and said actuator serving in a first position to block movement of said head into driving engagement with said notch such as to enable the control member to move the locking member to its unlocking position.
  • the lock shown in the drawings is intended principally for use in locking the main boltwork of a safe or vault door, and its layout and dimensions are chosen so that the unit may be interchangeable with known keyless combination locks, such as that marketed by the present applicants under the designation 7L08. It has a bolt 1 which can be extended and retracted from the case 2 and to which a drop-arm 3 is pivoted at 4.
  • the arm 3 has a laterally-extended head 5 at its end opposite to its connection with the bolt, which in the normal locked condition of the mechanism illustrated in Figure 1 lies on the periphery of a rotatable disc 6, onto which it is drawn by a spring schematically indicated at 7. In this condition the head 5 faces a fixed abutment 8 in the lock case to resist forced retraction of the bolt 1.
  • the disc 6 is freely rotatable by hand through the agency of an external knob or handle (not shown), within limits set by a stop 9A, but is normally held lightly in the rest position shown in Figure 1 by means of a detent spring (not shown). It has a notch 10 in its periphery which, when the disc is turned anti-clockwise (in the sense of the drawing) away from its rest position underlies the head 5 of the drop-arm, and into which the head is biased to engage by the spring 7 so as to establish a drive connection between the disc 6 and bolt 5. Normally, however, the head 5 is blocked from moving into full engagement with the notch 10 and free of the abutment 8 by the presence of the actuating member 11 of a bistable electromechanical actuator 12.
  • the actuator 12 is similar to the actuators shown in our copending United Kingdom patent application No. 2142374, comprising a magnetising coil 13 within which the actuating member 11 is pivoted, and a rectangular horseshoe permanent magnet 14 surrounding the coil 13, with the actuating member extending through the gap between the poles of the permanent magnet. That part of the actuating member 11 which extends within the coil 13 and between the associated permanent magnet poles is made from a magnetisable material having a low energy requirement for reversing its magnetic polarity coupled with a high remanence, such as a heat-treated element of the cobalt-iron-vanadium alloy marketed by Telcon Metals Limited under the name "Chromindur".
  • FIG. 4 An example of the construction of an actuator 12 for use in this lock mechanism is shown in Figure 4.
  • a bar 11A (which may be laminated) of Chromindur is fitted at one end with a plastics cap 11B by which it is pivotally borne in a pair of recesses 13B formed inside the coil bobbin 13A.
  • the bar 11A extends out of the bobbin 13A to lie between the poles P1 and P2 of the associated field magnet 14 and its upper end is fitted with a plastics tip piece 11C.
  • the actuator is assembled by passing the Chromindur bar 11A with its cap 11B through t he bottom of the coil bobbin 13A and snapping ont eh tip piece 11C.
  • the coil is then assembled to the magnet 14 which retains the actuating member against ejection through the bottom of the bobbin.
  • the actuating member 11 can be flipped between two positions (as indicated by comparing its positions in Figures 1 and 2) in response to pulses of electricity passed through the associated coil 13 in opposite directions. For example, if it is assumed that the magnet pole P1 is a North and P2 a South, then if an electrical pulse is sent through the associated coil 13 in the direction such as to induce a North pole at the bottom end of the Chromindur element 11A within the coil and a South pole at the top end of that element between the poles P1 and P2, then the element will be attracted by pole P1 and repelled by pole P2 so as to pivot the actuating member into the position in which it is shown in Figure 1, being its locking position.
  • the remanence of the element 11A is sufficient to keep the actuating member in that position until an electrical pulse is sent through the coil 13 in the opposite direction, whereupon the induced polarity of the element 11A is reversed so that its end between the poles P1 and P2 now becomes a North, and it will be influenced oppositely by the permanent magnet poles to pivot the actuating member into the position in which it is shown in Figure 2, being its release position.
  • magnetising pulses are supplied to the coil 13 from an electronic control circuit (not shown) associated with a code-input or recognition device such as a numeric keypad, dard-reader, biometric sensor or the like, so that the coil 13 is pulsed to move the actuating member out of its Figure 1 position and into its Figure 2 position only when a correct code or other indication of the user's authority to operate the lock has been entered.
  • a timing circuit may also be included to restrict possible operation of the actuator to its release position only to specified periods of the day.
  • the disc 6 can now be turned to pick up the drop-arm 3 as shown in Figure 2. Turning the disc further anti-clockwise (in the sense of the drawing) thereafter retracts the bolt 1 to the Figure 3 position, through the coupling established between the drop-arm head 5 and notch 10.
  • the operation of the control circuit may provide for an unlocking "window" of limited duration following operation of the actuator 12 to its release position, after which the coil 13 will be automatically pulsed again to return the member 11 to its locking position (shown in dotted line in Figure 3), or a separate locking pulse may be given under user control.
  • the bolt 1 can be thrown out again, (either before or after the actuator has been flipped back to its locking position), by turning the disc 6 clockwise to drive the drop-arm 3 rightwards through the engagement of its head 5 in the notch 10.

Landscapes

  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Lock And Its Accessories (AREA)
EP87307911A 1986-09-13 1987-09-08 Mécanisme pour serrure Expired - Lifetime EP0260860B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8622120 1986-09-13
GB868622120A GB8622120D0 (en) 1986-09-13 1986-09-13 Locking mechanisms

Publications (2)

Publication Number Publication Date
EP0260860A1 true EP0260860A1 (fr) 1988-03-23
EP0260860B1 EP0260860B1 (fr) 1991-01-23

Family

ID=10604174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87307911A Expired - Lifetime EP0260860B1 (fr) 1986-09-13 1987-09-08 Mécanisme pour serrure

Country Status (4)

Country Link
EP (1) EP0260860B1 (fr)
AU (1) AU7831387A (fr)
DE (1) DE3767622D1 (fr)
GB (2) GB8622120D0 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0451712A1 (fr) * 1990-04-11 1991-10-16 Costruzioni Italiane Serrature Affini C.I.S.A. S.p.A. Système de manipulation pour serrure à pêne dans des serrures manipulées par plaques magnÀ©tiques
FR2695425A1 (fr) * 1992-09-09 1994-03-11 Caradonna Benito Combinaison électro-mécanique.
EP0777023A3 (fr) * 1992-01-13 1999-05-26 C & M TECHNOLOGY, INC. Mécanisme de verrouillage de haute sécurité
WO2000068534A2 (fr) * 1999-05-06 2000-11-16 Ilco Unican Inc. Verrou electromecanique
US6911897B2 (en) 1988-09-29 2005-06-28 C&M Technology, Inc. Electronic combination lock with high security features
US8091392B2 (en) 2008-09-05 2012-01-10 Lock II, L.L.C. High security lock
US8093986B2 (en) 2009-01-20 2012-01-10 Lock II, L.L.C. Self-powered electronic lock
US8635893B2 (en) 2008-09-05 2014-01-28 Lock II, L.L.C. High security lock
US9080349B2 (en) 2012-12-19 2015-07-14 Lock II, L.L.C. Device and methods for preventing unwanted access to a locked enclosure

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2206638B (en) * 1987-05-22 1991-03-20 Pickersgill Kaye Ltd Electromechanical lock
DE3817696C1 (en) * 1988-05-25 1989-11-30 Pierre Dipl.-Ing. 8012 Ottobrunn De Meyers Coupling system with driving plate, drop-in lever and detent element
DE3902992C1 (fr) * 1989-02-02 1990-03-29 Dom-Sicherheitstechnik Gmbh & Co Kg, 5040 Bruehl, De
GB9405701D0 (en) * 1994-03-23 1994-05-11 Intelligent Locking Sys Ltd Improvements in or relating to locks
SE506763C2 (sv) * 1995-01-18 1998-02-09 Assa Ab Dörrlås
GB0031060D0 (en) 2000-12-20 2001-01-31 Meritor Light Vehicle Sys Ltd Latch arrangement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2225601B1 (fr) * 1973-04-13 1978-03-24 Daempa As
CH606717A5 (en) * 1976-07-07 1978-11-15 Steurer Hans Fertigbautechnik Coin operated door lock

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB335570A (en) * 1929-06-21 1930-09-22 Ernest Cecil Gorman Improvements in automatic means for controlling hand-operated locks of railway carriage doors and the like
US4073527A (en) * 1977-01-12 1978-02-14 Schlage Lock Company Electrically controlled door lock
FR2558202B1 (fr) * 1984-01-12 1986-04-11 Guitard Robert Serrure electromecanique
GB8418311D0 (en) * 1984-07-18 1984-08-22 Chubb Lips Nederland Bv Locks
SE442420B (sv) * 1984-08-01 1985-12-23 Wso Cpu System Ab Las
JPS6141762U (ja) * 1984-08-21 1986-03-17 俊彦 山下 錠前

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2225601B1 (fr) * 1973-04-13 1978-03-24 Daempa As
CH606717A5 (en) * 1976-07-07 1978-11-15 Steurer Hans Fertigbautechnik Coin operated door lock

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6911897B2 (en) 1988-09-29 2005-06-28 C&M Technology, Inc. Electronic combination lock with high security features
EP0451712A1 (fr) * 1990-04-11 1991-10-16 Costruzioni Italiane Serrature Affini C.I.S.A. S.p.A. Système de manipulation pour serrure à pêne dans des serrures manipulées par plaques magnÀ©tiques
US7263865B2 (en) 1992-01-13 2007-09-04 C&M Technology, Inc. High security lock mechanism
EP1213420A3 (fr) * 1992-01-13 2006-04-12 C & M TECHNOLOGY, INC. Mécanisme de verrouillage de haute sécurité
EP0777023A3 (fr) * 1992-01-13 1999-05-26 C & M TECHNOLOGY, INC. Mécanisme de verrouillage de haute sécurité
US6314773B1 (en) 1992-01-13 2001-11-13 C&M Technology, Inc. High security lock mechanism
EP1213420A2 (fr) * 1992-01-13 2002-06-12 C & M TECHNOLOGY, INC. Mécanisme de verrouillage de haute sécurité
US6502438B1 (en) * 1992-01-13 2003-01-07 C&M Technology, Inc. Electronic combination lock having anti-tampering features
US6546769B2 (en) 1992-01-13 2003-04-15 C&M Technology, Inc. High security lock mechanism
US5960655A (en) * 1992-01-13 1999-10-05 C&M Technology, Inc. High security lock mechanism
FR2695425A1 (fr) * 1992-09-09 1994-03-11 Caradonna Benito Combinaison électro-mécanique.
WO2000068534A2 (fr) * 1999-05-06 2000-11-16 Ilco Unican Inc. Verrou electromecanique
WO2000068534A3 (fr) * 1999-05-06 2001-03-08 Ilco Unican Inc Verrou electromecanique
US8516863B2 (en) 2008-09-05 2013-08-27 Lock II, L.L.C. High security lock
US8635893B2 (en) 2008-09-05 2014-01-28 Lock II, L.L.C. High security lock
US8091392B2 (en) 2008-09-05 2012-01-10 Lock II, L.L.C. High security lock
US8093986B2 (en) 2009-01-20 2012-01-10 Lock II, L.L.C. Self-powered electronic lock
US11613911B2 (en) 2012-12-19 2023-03-28 Lock Ii, Llc Device and methods for preventing unwanted access to a locked enclosure
US9080349B2 (en) 2012-12-19 2015-07-14 Lock II, L.L.C. Device and methods for preventing unwanted access to a locked enclosure
US9816294B2 (en) 2012-12-19 2017-11-14 Lock Ii, Llc Device and methods for preventing unwanted access to a locked enclosure
US10190335B2 (en) 2012-12-19 2019-01-29 Lock Ii, Llc Methods for preventing unwanted access to a locked enclosure
US10550604B2 (en) 2012-12-19 2020-02-04 Lock Ii, Llc Device and methods for preventing unwanted access to a locked enclosure
US10557285B2 (en) 2012-12-19 2020-02-11 Lock Ii, Llc Device and methods for preventing unwanted access to a locked enclosure
US11499342B2 (en) 2012-12-19 2022-11-15 Lock Ii, Llc Device and methods for preventing unwanted access to a locked enclosure

Also Published As

Publication number Publication date
AU7831387A (en) 1988-03-17
GB8622120D0 (en) 1986-10-22
GB8721098D0 (en) 1987-10-14
GB2196378A (en) 1988-04-27
GB2196378B (en) 1990-05-16
DE3767622D1 (de) 1991-02-28
EP0260860B1 (fr) 1991-01-23

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