EP0284589A2 - Elektrisches Sicherheitsschloss - Google Patents

Elektrisches Sicherheitsschloss Download PDF

Info

Publication number
EP0284589A2
EP0284589A2 EP88870038A EP88870038A EP0284589A2 EP 0284589 A2 EP0284589 A2 EP 0284589A2 EP 88870038 A EP88870038 A EP 88870038A EP 88870038 A EP88870038 A EP 88870038A EP 0284589 A2 EP0284589 A2 EP 0284589A2
Authority
EP
European Patent Office
Prior art keywords
latch
characteristic
lock
lever
electrical safety
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
EP88870038A
Other languages
English (en)
French (fr)
Other versions
EP0284589A3 (en
EP0284589B1 (de
Inventor
Jacobus Boeckx
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.)
Insetec NV
Original Assignee
Insetec NV
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 Insetec NV filed Critical Insetec NV
Priority to AT88870038T priority Critical patent/ATE82032T1/de
Publication of EP0284589A2 publication Critical patent/EP0284589A2/de
Publication of EP0284589A3 publication Critical patent/EP0284589A3/en
Application granted granted Critical
Publication of EP0284589B1 publication Critical patent/EP0284589B1/de
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
    • E05B47/02—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means
    • E05B47/023—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means the bolt moving pivotally or rotatively
    • 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
    • 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
    • E05B2047/0084—Key or electric means; Emergency release
    • E05B2047/0086—Emergency release, e.g. key or electromagnet
    • 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
    • E05B47/0004—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 said core being linearly movable

Definitions

  • This invention concerns an electrical safety lock, in particular a lock that can be incorporated in a door panel or door jamb, preferrably enclosed in a burglar-proof lock case.
  • the invention concerns a safety lock of this type which is controlled electro-mechanically.
  • electro-mechanically controlled safety locks are already known; in all them, the electromagnet is kept energized in order to hold the latch in the lock, so that whenever power to the electromagnet is interrupted, either deliberately or inadvertently, the latch emerges from the lock and so automatically locks the door.
  • the aim of the present invention is to circumvent this disadvantage of known types of safety lock, by providing an electro-mechanical safety lock which can be brought, by mechanical means using a key, into either of two positions and held there automatically, ie. with the latch either in or out of the lock. In either case the key may be withdrawn from the lock.
  • a safety lock according to the invention which offers a solution for this consists essentially of: a latch; a spring which acts on this latch, so continually trying to force it out of the lock case; a lever and shaft mechanism between this latch and the armature of a solenoid, such that the latch is drawn back into the lock case when the solenoid is energized, or, when the solenoid is deenergized, the latch is forced out of the lock case by the action of the abovementioned spring; and, at the other end of the solenoid armature, a mechanical device which enables the latch to be moved back into or out of the lock case by means of a cylinder lock and key when the solenoid is not energized.
  • Figs. 1 to 6 show schematically a door panel 1 with a mortice 2, and opposite a fixed section of wall 3 in which is fitted a lock 4 according to the invention, preferably mounted in a burglar-­proof lock case 5.
  • the lock 4 consists essentially of a latch 6 which is freely hinged on an axis 7.
  • a torsion spring 8 Around the axis 7 is a torsion spring 8 with two arms, one of which acts against the outer wall of the base plate 9 and the other against a stop 10 on the latch 6.
  • the latch 6 has a recess 11 into which fits the end of a a curved lever 12.
  • This lever 12 has a pin 13 which projects on either side of it.
  • the projecting ends of the pin 13 slide in slots 14 in the cheeks 15-16 on either side of the recess 11.
  • the other end of the lever 12 hinges freely on an axis 17 mounted on the base plate 9.
  • a second lever 18 is also freely hinged on the axis 17.
  • This second lever 18 consists of two parts 19 and 20 situated on either side of the first lever 12. These two parts 19 and 20 are attached to each other at the base by a bridge 21 underneath which there is a spring 22 which continually tries to make the lever 18 hinge towards the latch 6.
  • each of the parts 19 and 20 of the lever 18 there is a slot 23 in which slide the ends of a pin 24 mounted in the lever 12 and to which are attached the end of a forked shaft 25.
  • the other end of this shaft 25 is attached to the end of the armature 27 of a solenoid 28 via an axis 26 on which it hinges freely.
  • the other end of the armature 27 is extended by a shaft 29 which emerges from the solenoid 28 and which terminates in a pusher block 30.
  • the pusher block 30 can move within a hollow space 31 in a slider 32 which slides in guide blocks 33-34 mounted on the base plate 9.
  • the slide 32 has a groove 35 with sloping edges 36.
  • the locking bar 39 has on the front a notch 44 which forms a sort of hook, and also a projection 45 opposite the groove 35.
  • the slider 32 Underneath the slider 32 is a key-operated cylinder lock 47 with a projecting bit 48.
  • a bolt 49 with a suitably rounded end and which operates on the door 1 or similar.
  • a bridge 50 which passes over the extension of the solenoid armature 27 and whose two feet 51-52 are wide at the base.
  • the bolt 49 is guided by the bridge 50 sliding on two pins 53 and 54 attached to the base plate 9.
  • springs respectively 55 and 56, between the base plate 9 and the bridge 50, such that these springs try to force the bolt 49 out of the lock.
  • the latch is held in the mortice 2 essentially by the action of the torsion spring 8. At this moment the solenoid is not energized.
  • the solenoid 28 is energized so that, as shown in fig. 4, the latch 6 is withdrawn from the mortice 2 against the resistance of the spring 8.
  • the solenoid armature 27 moves towards the left in the figures, it first swings the lever 18 counterclockwise and simultaneously through the action of lever 12 swings the latch clockwise, which is possible because the lever 18 will first have moved out of the way.
  • Fig. 6 shows the final position in which the lock according to the invention is held open.
  • the cylinder 47 may be turned with a key so that the bit 48 also turns and engages in the groove 35 and operates on the projection 45 of the locking bar 39, thus forcing the locking bar upwards against the resistance of the springs 41 and 42, so that when the locking bar subsequently comes back down again when the slider 32 is slid, the notch 44 hooks over the pin 46, with the result that the lock is brought into the position shown in fig. 6 and held there until the cylinder 47 is turned in the other direction, thus returning the lock to the position shown in fig. 5.
  • Figs. 7 to 16 show a variant which is essentially similar to the variant shown in figs. 1 to 6, with the same parts indicated by the same numbers.
  • the lock is fitted with a proximity switch 59 which terminates on the outside surface of the base plate 9 and which is influenced by the steel door or a steel part mounted on the door, so that the lock may react when the door approaches.
  • a stop 60 which can come up against the inside of the base plate 9 in order to prevent the latch coming too far out of the lock.
  • This lever replaces the stop 21 in the first variant.
  • Arm 62 of the lever 61 can be operated on by foot 52 of the bridge 50, while the other arm 63 is situated behind a projection 64 on the lever 18.
  • a torsion spring 65 is wound around the axis 17, with one arm of the spring round the projection 64 and the other arm resting against the base plate 9. This spring has essentially the same function as the spring 22 in the first variant.
  • the purpose of the lever 61 is to draw back the lever 18, i.e. to make it swivel counterclockwise whenever the bolt 49 emerges from the base plate. This is achieved by the projection 51 pressing on the arm 62 of the lever 61 under the action of springs 55 and 56, so that the other arm 63 of the lever 61 presses against the projection 64 on the lever 18.
  • the projection 51 pressing on the arm 62 of the lever 61 under the action of springs 55 and 56, so that the other arm 63 of the lever 61 presses against the projection 64 on the lever 18.
  • the projection 51 is moved out of the way of the arm 62, thus enabling the torsion spring 65, which presses against the projection 64, to bring the lever 18 into the safety or locked position, ie. with the notch 57 of the lever 18 above the 58 spur of the latch 6.
  • the shaft 25 is joined to a projecting part of the solenoid armature 27 and has a cam 67.
  • the bridge 66 operates in conjunction with the cam 67 of the shaft 25 in order to prevent sabotage.
  • the lever 18 has on its other side a projection 68 that can operate in conjunction with a microswitch 69 on a mounting plate 70 attached to the base plate 9.
  • microswitch The purpose of the microswitch is to indicate whether the latch 6 is in the locked position, when the lock is connected to a signalling system.
  • the mechanical locking is also provided by a slider 32 with a groove 35 into which the end 45 of the locking bar 39 fits.
  • the locking bar 39 is positioned transversely with respect to the length of the lock, and can be moved to one side or other of a ridge 71 on the guide blocks 33 and 34.
  • the slider 32 Underneath the slider 32 is an integrated circuit 72 which controls the operation of the lock and which contains amongst other things a microswitch 73 operated by the pusher block 30 of the solenoid 28.
  • the solenoid 28 When it is wished to draw the latch 6 back into the lock, the solenoid 28 is energized so that the pusher block 30 depresses the microswitch 73, in order to reduce the power drawn by the solenoid to a level sufficient to hold it in that position, so that it heats up less.
  • the integrated circuit 72 consists essentially of: a transformer 74 to reduce the voltage to 24 volts; a rectifier bridge 75 to convert the 24 V AC to 24 V DC; a capacitor 76 to smooth the output from the rectifier bridge 75; four rectifiers 77-78-79-80 connected in bridge configuration to supply the solenoid 28; a printed circuit relay 81 to switch a signalling contact and to switch the solenoid 28; and, in combination with the microswitch 82 and printed circuit relay 81, the proximity switch 59.
  • the integrated circuit 72 is connected to a control and signalling panel (not shown) on which there is a pushbutton S together with LEDs indicating the position of the lock at any given moment.
  • the lock according to the invention is in the position shown in fig. 7.
  • the pusher block 30 of the solenoid 28 operates the microswitch 78, so reducing the power drawn by the solenoid to a level sufficient to hold the solenoid in a drawn-in position.
  • the latch 6 is thus drawn into the lock, so that the door can be opened.
  • the proximity switch 59 connects the printed circuit relay 81, thus closing the relay contact.
  • the proximity switch 59 reconnects the printed circuit relay 81 once more, so that the abovementioned relay contact opens once more.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Lock And Its Accessories (AREA)
  • Burglar Alarm Systems (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
EP88870038A 1987-03-23 1988-03-10 Elektrisches Sicherheitsschloss Expired - Lifetime EP0284589B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88870038T ATE82032T1 (de) 1987-03-23 1988-03-10 Elektrisches sicherheitsschloss.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE8700292 1987-03-23
BE8700292A BE1000420A7 (nl) 1987-03-23 1987-03-23 Elektrisch veiligheidsslot.

Publications (3)

Publication Number Publication Date
EP0284589A2 true EP0284589A2 (de) 1988-09-28
EP0284589A3 EP0284589A3 (en) 1989-12-06
EP0284589B1 EP0284589B1 (de) 1992-11-04

Family

ID=3882583

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88870038A Expired - Lifetime EP0284589B1 (de) 1987-03-23 1988-03-10 Elektrisches Sicherheitsschloss

Country Status (5)

Country Link
EP (1) EP0284589B1 (de)
AT (1) ATE82032T1 (de)
AU (1) AU597808B2 (de)
BE (1) BE1000420A7 (de)
DE (1) DE3875642T2 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228288A (en) * 1988-12-22 1990-08-22 Electronic Surveillance Produc Safety lock for remote actuation
WO1990011422A1 (en) * 1989-03-21 1990-10-04 Stendals Elektriska Ab An electrically operated securing plate for door locks
WO1993003247A1 (de) * 1991-07-27 1993-02-18 Dorma Gmbh + Co. Kg Handentriegelung für automatische schiebetüren
WO1995023269A1 (en) * 1994-02-25 1995-08-31 Trimec Securities Pty. Limited Electromagnetic lock
EP1797263A4 (de) * 2004-09-17 2009-06-10 Hartwell Corp Motorgetriebene verriegelung
US20240068274A1 (en) * 2022-08-31 2024-02-29 ASSA ABLOY Access and Egress Hardware Group Inc. Electronic Latch Retraction For Mortise Lock and Methods of Operation
EP4459082A1 (de) * 2023-04-17 2024-11-06 Sinox Company Ltd. Elektronisches steuerverbundschloss

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10249248A1 (de) * 2002-10-23 2004-05-13 Kurz, Oliver Schließsystem
DE102007017521A1 (de) 2007-04-13 2008-10-16 Assa Abloy Sicherheitstechnik Gmbh Hochsicherheitsschloss
DE102012001787A1 (de) 2012-01-31 2013-08-01 Assa Abloy Sicherheitstechnik Gmbh Türöffner und Tür mit Türöffner

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1482332A (fr) * 1966-06-03 1967-05-26 Serrure de porte, en particulier pour corridors ou couloirs analogues
AU501920B2 (en) * 1975-11-21 1979-07-05 Access Control Systems Australia Pty. Ltd Electrically actuated doorlock
US4237711A (en) * 1978-02-10 1980-12-09 Brink's Locking Systems, Inc. Lock mechanism
US4557121A (en) * 1983-08-22 1985-12-10 Security Engineering, Inc. Electric fail-secure/fail-open lock mechanism

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228288A (en) * 1988-12-22 1990-08-22 Electronic Surveillance Produc Safety lock for remote actuation
GB2228288B (en) * 1988-12-22 1993-04-14 Electronic Surveillance Produc Lock mechanisms
WO1990011422A1 (en) * 1989-03-21 1990-10-04 Stendals Elektriska Ab An electrically operated securing plate for door locks
US5195792A (en) * 1989-03-21 1993-03-23 Stendals Elektriska Ab Electrically operated securing plate for door locks
WO1993003247A1 (de) * 1991-07-27 1993-02-18 Dorma Gmbh + Co. Kg Handentriegelung für automatische schiebetüren
WO1995023269A1 (en) * 1994-02-25 1995-08-31 Trimec Securities Pty. Limited Electromagnetic lock
GB2293204A (en) * 1994-02-25 1996-03-20 Trimec Securities Pty Ltd Electromagnetic lock
GB2293204B (en) * 1994-02-25 1997-07-09 Trimec Securities Pty Ltd Electromagnetic lock
EP1797263A4 (de) * 2004-09-17 2009-06-10 Hartwell Corp Motorgetriebene verriegelung
US20240068274A1 (en) * 2022-08-31 2024-02-29 ASSA ABLOY Access and Egress Hardware Group Inc. Electronic Latch Retraction For Mortise Lock and Methods of Operation
EP4459082A1 (de) * 2023-04-17 2024-11-06 Sinox Company Ltd. Elektronisches steuerverbundschloss

Also Published As

Publication number Publication date
AU1371688A (en) 1988-09-22
EP0284589A3 (en) 1989-12-06
EP0284589B1 (de) 1992-11-04
DE3875642D1 (de) 1992-12-10
ATE82032T1 (de) 1992-11-15
AU597808B2 (en) 1990-06-07
DE3875642T2 (de) 1993-03-18
BE1000420A7 (nl) 1988-12-06

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