EP0451712A1 - Auslöser für Fallenschloss in Schlössern, welche mit magnetischen Karten betätigt werden - Google Patents

Auslöser für Fallenschloss in Schlössern, welche mit magnetischen Karten betätigt werden Download PDF

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Publication number
EP0451712A1
EP0451712A1 EP91105378A EP91105378A EP0451712A1 EP 0451712 A1 EP0451712 A1 EP 0451712A1 EP 91105378 A EP91105378 A EP 91105378A EP 91105378 A EP91105378 A EP 91105378A EP 0451712 A1 EP0451712 A1 EP 0451712A1
Authority
EP
European Patent Office
Prior art keywords
plate
disk
electromagnet
spring latch
spring
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.)
Withdrawn
Application number
EP91105378A
Other languages
English (en)
French (fr)
Inventor
Deo Errani
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.)
CISA SpA
Original Assignee
CISA SpA
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 CISA SpA filed Critical CISA SpA
Publication of EP0451712A1 publication Critical patent/EP0451712A1/de
Withdrawn legal-status Critical Current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
    • E05B47/0692—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle radially with a rectilinearly 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
    • E05B47/0038—Operating or controlling locks or other fastening devices by electric or magnetic means using permanent magnets
    • E05B47/0043—Mechanical locks operated by cards having permanent magnets
    • 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
    • E05B47/0006—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a non-movable core; with permanent magnet

Definitions

  • the present invention relates to a spring latch actuation device in electromagnetically operated locks, in particular for locks operated by magnetic cards.
  • the spring latch is connected by means of lever systems to an element for coupling to the knob of the lock which can be actuated by the user from outside.
  • the aim of the present invention is to obviate this disadvantage by providing a device which is suitable for actuating the spring latch of the respective lock and can be actuated by an electromagnet having smaller dimensions.
  • a further object of the invention is to provide a device which is simple in concept and safely reliable in operation.
  • a device which is characterized in that it comprises a first element, which is constantly operatively connected to the spring latch of the lock, and a second element, which is connected to the spring latch actuation knob, said elements being supported so as to be able to rotate coaxially with respect to one another and being suitable for being rotationally coupled to one another by means of a component which is mounted in one of said elements so as to be able to oscillate, said component being retained, by spring means which are accommodated in one of said elements, in a passive position which corresponds to the free rotation of the knob, an electromagnet being furthermore provided, said electromagnet being suitable for actuating said component from said passive position into an active position in which said component provides the rotational coupling of said first and second elements so as to allow the actuation of the spring latch when the knob is acted on.
  • the lock provided with the device according to the invention is composed of an elongated front shell or container 1 which is closed rearward by a base plate 2 on which the electric circuit and other components, which conventionally compose an electromagnetically operated lock and are not illustrated in the drawings, are mounted.
  • a bush 3 is rotatably supported in the front face of the shell and is traversed by a hole 4 which is coaxial to a hole 5 which is defined in the base plate 2 when the shell is associated with said base plate.
  • the device has an element 6 which is constituted by a plate which has a peripheral recess 7 and a rectangular recess or notch 8 in a position diametrically opposite to said recess 7 (see figure 4).
  • a radial seat 9 is defined at the recess 8 and in the thickness of the element 6, and a pin 10 is guided in said seat and is pushed outward by a helical spring 11 which is accommodated in the bottom of said seat.
  • the plate 6 is centrally provided with a tang 12 by means of which it can rotate in the hole 5 and in which a square recess 13 is defined axially for the engagement of means for actuating the spring latch, which is not illustrated.
  • a ring bearing 14 is centered on the tang 12 and is interposed between the plate 6 and the base plate 2.
  • a blind hole 15 with a circular cross section, and two notches 16 in the shape of a spherical dome, arranged diametrically with respect to the blind hole 15, are defined on the face of the plate which is opposite to the face provided with the tang 5 and are coaxial to said tang.
  • a substantially disk-shaped element 17 is pivoted to the plate 6 and has an expansion 18 which extends radially from the perimeter of the disk and ends with a sort of fork 19 between the arms whereof an articulation pivot 20 for a component 21 constituted by a rocker lever is supported.
  • the disk 17 is pivoted to the plate 6 by means of a pivot 22 which is inserted in the blind hole 15.
  • the disk 17 further has two raised portions 23, 24 which extend from the face thereof which is opposite to the face of contact with the plate 6.
  • the two raised portions 23, 24 are diametrical, and respective blind holes 25 are defined therein; a spring 26 is accommodated in each of said blind holes 25 and acts on a respective ball 27.
  • the mutual distance of the holes 25 is equal to that of the notches 16, so that in a given angular position of the disk 17 the balls 27 can engage the respective notches 16 so as to set the angular position of the disk 17 with respect to the plate 6.
  • the disk 17 On the side opposite to the raised portions 23, 24, the disk 17 has a tooth 28 which extends into the recess 7 of the plate 6 and occupies a median position thereof.
  • the end portions 29 of the spring 30 are arranged not only on the tooth 28 but also astride a protrusion 32 which rises from the base plate 2 proximate to the cylinder 31.
  • a knob 33 is provided for the rotation of the disk 17 and has a tang which can rotate in the bush 3 and is axially traversed by a square hole 34.
  • Said square hole 34 is suitable for engaging a square stem 35 which is rigidly rotationally associated with the disk 17 and is coaxial to the tang 12, so as to define a prismatic coupling which allows to rotate the disk 17 by acting on the knob 33.
  • the described device is completed by an electromagnet 36 which is fixed to the base plate 2 and has two polar expansions 37, 38 which extend laterally toward the rocker lever 21. More precisely, the polar expansion 38 extends toward the central enlarged region 39 of the lever 21, whereas the expansion 37 cooperates with an arm 40 of the lever 21, the other arm 41 being suitable for engaging the rectangular recess 8. As illustrated in figure 3, the arms 40 and 41 of the lever 21 are conveniently axially offset with respect to the articulation pivot 20 in order to allow the central region and the end of the arm 40 to optimally convey the lines of force of the electromagnet, increasing its efficiency.
  • lever systems which connect the plate 6 to the spring latch oppose a resistance which prevents any rotation of the plate arising from the traction exerted by the balls 27. If the disk 17 is rotated and the plate 6 is retained, the balls 27 in fact disengage from the notches 16, allowing the rotation of the disk with respect to the plate in contrast with the return action exerted by the spring 30, on the end portions 29 of which the tooth 28 acts.
  • the spring 30 returns the disk 17 to the angular position in which the lever 21 is aligned with the pin 10. This position is set by the engagement of the balls 27 in the notches 16.
  • the electromagnet 36 is activated so as to cause, by virtue of the attraction of the arm 40 between the polar expansions 37, 38, the oscillation of the rocker lever 21.
  • the activation of the electromagnet 36 occurs by inserting a card 42, provided with a magnetic band, in which an encoded signal is stored, in a reading device 43 which, in cooperation with appropriate electronic circuits, processes the encoded signal, allowing the energization of the electromagnet only when the signal corresponds to the one provided for the lock.
  • the arm 41 engages in the notch 8, producing a rotational coupling between the disk 17 and the plate 6 which allows, by acting on the knob 33, to rotate the tang 12 and actuate the spring latch opening lever systems.
  • a substantial advantage of the present invention is constituted by the fact that when the electromagnet 36 is not energized, the lever 21, by virtue of the elastic thrust exerted by the pin 10, is positively kept in a non-interference condition, so that the knob 33 is disengaged from the plate 6 and thus from the spring latch. In this manner, attempts at forcing, performed on the knob, are not transmitted to the spring latch and greater safety against fraudulent tampering of the lock is thus obtained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Prepayment Telephone Systems (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Lock And Its Accessories (AREA)
EP91105378A 1990-04-11 1991-04-05 Auslöser für Fallenschloss in Schlössern, welche mit magnetischen Karten betätigt werden Withdrawn EP0451712A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT3442A IT1238550B (it) 1990-04-11 1990-04-11 Dispositivo per l'azionamento dello scrocco in serrature con funzionamento a scheda magnetica.
IT344290 1990-04-11

Publications (1)

Publication Number Publication Date
EP0451712A1 true EP0451712A1 (de) 1991-10-16

Family

ID=11107458

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91105378A Withdrawn EP0451712A1 (de) 1990-04-11 1991-04-05 Auslöser für Fallenschloss in Schlössern, welche mit magnetischen Karten betätigt werden

Country Status (2)

Country Link
EP (1) EP0451712A1 (de)
IT (1) IT1238550B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2730266A1 (fr) * 1995-02-07 1996-08-09 Talleres Escoriaza Sa Dispositif de securite pour serrures electroniques
ES2138523A1 (es) * 1997-02-27 2000-01-01 Talleres Escoriaza Sa Cierre de seguridad para control de accesos.
EP1526231A2 (de) * 2003-10-21 2005-04-27 DORMA GmbH + Co. KG Beschlag

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1324349A (en) * 1971-05-21 1973-07-25 Boehme Inc H O Magnetic locking mechanism
GB1334085A (en) * 1970-11-27 1973-10-17 Boehme Inc H O Magnetic locking mechanism
DE2347420A1 (de) * 1972-09-21 1974-04-11 Greer Hydraulics Inc Durch karten betaetigbares magnetschloss
GB2142374A (en) * 1983-05-12 1985-01-16 Chubb & Sons Lock & Safe Co Locking mechanism
EP0241323A2 (de) * 1986-03-07 1987-10-14 Sedley, Bruce Samuel Durch magnetischen Schlüssel betätigbares Schloss
EP0260860A1 (de) * 1986-09-13 1988-03-23 Chubb & Son's Lock and Safe Company Limited Schliesseinrichtung
EP0276444A1 (de) * 1987-01-30 1988-08-03 Schulte-Schlagbaum Aktiengesellschaft Schliesseinrichtung mit grosser Schliesskombinationsanzahl

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1334085A (en) * 1970-11-27 1973-10-17 Boehme Inc H O Magnetic locking mechanism
GB1324349A (en) * 1971-05-21 1973-07-25 Boehme Inc H O Magnetic locking mechanism
DE2347420A1 (de) * 1972-09-21 1974-04-11 Greer Hydraulics Inc Durch karten betaetigbares magnetschloss
US3834197A (en) * 1972-09-21 1974-09-10 Greer Hydraulics Inc High security, card operable magnetic lock
GB2142374A (en) * 1983-05-12 1985-01-16 Chubb & Sons Lock & Safe Co Locking mechanism
EP0241323A2 (de) * 1986-03-07 1987-10-14 Sedley, Bruce Samuel Durch magnetischen Schlüssel betätigbares Schloss
EP0260860A1 (de) * 1986-09-13 1988-03-23 Chubb & Son's Lock and Safe Company Limited Schliesseinrichtung
EP0276444A1 (de) * 1987-01-30 1988-08-03 Schulte-Schlagbaum Aktiengesellschaft Schliesseinrichtung mit grosser Schliesskombinationsanzahl

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2730266A1 (fr) * 1995-02-07 1996-08-09 Talleres Escoriaza Sa Dispositif de securite pour serrures electroniques
ES2135986A1 (es) * 1995-02-07 1999-11-01 Talleres Escoriaza Sa Dispositivo de seguridad para cerraduras electronicas.
ES2138523A1 (es) * 1997-02-27 2000-01-01 Talleres Escoriaza Sa Cierre de seguridad para control de accesos.
EP1526231A2 (de) * 2003-10-21 2005-04-27 DORMA GmbH + Co. KG Beschlag
EP1526231A3 (de) * 2003-10-21 2006-02-01 DORMA GmbH + Co. KG Beschlag

Also Published As

Publication number Publication date
IT9003442A1 (it) 1991-10-11
IT1238550B (it) 1993-08-18
IT9003442A0 (it) 1990-04-11

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