EP0819812A2 - Schloss mit Sicherheitsvorrichtung zum Ermöglichen der Einführung eines Schlüssels in das Schloss - Google Patents

Schloss mit Sicherheitsvorrichtung zum Ermöglichen der Einführung eines Schlüssels in das Schloss Download PDF

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Publication number
EP0819812A2
EP0819812A2 EP97830125A EP97830125A EP0819812A2 EP 0819812 A2 EP0819812 A2 EP 0819812A2 EP 97830125 A EP97830125 A EP 97830125A EP 97830125 A EP97830125 A EP 97830125A EP 0819812 A2 EP0819812 A2 EP 0819812A2
Authority
EP
European Patent Office
Prior art keywords
key
lock
keyhole
cylindrical body
housing
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Withdrawn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
EP97830125A
Other languages
English (en)
French (fr)
Other versions
EP0819812A3 (de
Inventor
Alberto Guzzinati
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.)
Mottura Serrature di Sicurezza SpA
Original Assignee
Mottura Serrature di Sicurezza 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 Mottura Serrature di Sicurezza SpA filed Critical Mottura Serrature di Sicurezza SpA
Publication of EP0819812A2 publication Critical patent/EP0819812A2/de
Publication of EP0819812A3 publication Critical patent/EP0819812A3/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Withdrawn legal-status Critical Current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
    • E05B47/0038—Operating or controlling locks or other fastening devices by electric or magnetic means using permanent magnets
    • E05B47/0041—Operating or controlling locks or other fastening devices by electric or magnetic means using permanent magnets with tumbler pins suspended for a pendulum movement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/14—Closures or guards for keyholes
    • E05B17/142—Closures or guards for keyholes with key-operated locks, e.g. padlocks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
    • E05B35/14—Locks for use with special keys or a plurality of keys ; keys therefor with keys of which different parts operate separate mechanisms

Definitions

  • the present invention relates to safety locks, particularly for doors of dwellings, gates and the like, of the type comprising:
  • the object of the present invention is that of providing a lock of the above indicated type which has a higher safety degree with respect to the locks made to date.
  • the invention provides a lock of the above indicated type, characterized in that said lock comprises a safety device for enabling a key to be introduced within the lock housing, said safety device comprising a cylindrical body rotatably supported by the housing in front of said keyhole and having an auxiliary keyhole through which the key must be inserted in order to reach the main lock keyhole, said safety device further comprising means for normally keeping the cylindrical keyhole is rotated with respect to the main keyhole, so that the key can not be introduced within the main keyhole, and magnetically operable means, co-operating with complementar magnetically operable means provided on the key, in order to de-activate the locking means when the key is introduced within the auxiliary keyhole, so as to allow the cylindrical body to rotate until aligning the auxiliary keyhole with the main keyhole, thus enabling the key to be introduced within the housing of the lock.
  • the key which is able to operate the lock has a double safety degree.
  • it has a profile able to operate the lock mechanism (be it for example either a lock mechanism of the rotatable cylinder type or of the double-bit type), arranged within the housing, while on the other hand the key has said magnetically operable complementar means (typically permanent magnets) arranged so as to cause the de-activation of the locking means when the key is introduced within said cylindrical body and the safety device.
  • the locking means comprises at least one key element radially slidable within a key-way formed in the outer surface of said cylindrical body and biassed by spring means towards a protecting position where it engages a co-operating housing, within which the cylindrical body is rotatably mounted.
  • the aforesaid magnetically operable means comprises at least one pin arranged both radially within said key-way of the cylindrical body and pivotally around its central portion and having its radially inner end of ferromagnetic material able to cooperate with a permanent magnet provided on the lock key.
  • Said key element has an inner surface with a hole adapted to mate with the radially outer end of said pin, when the latter reaches a pre-determined position as a result of the introduction of the lock key, so as to allow the key element to be retracted within said key-way as a result of a rotation of the cylindrical body.
  • a series of many in-line pivotable pins of the above indicated type are provided, co-operating with an equal number of permanent magnets provided on the lock key.
  • two key elements diametrically opposite to each other are provided, each of which has on its inner surface a plurality of holes co-operating with an equal number of pivotable pins, which on their turn co-operate with an equal number of permanent magnets provided on two opposite faces of the lock key.
  • numeral 1 generally designates a safety lock comprising a housing 2 of sheet metal containing a lock mechanism of any known type (for example of the rotatable cylinder type or of the double-bit type) for operating a latch element 3 and a bolt including a plurality of locking fingers 4 slidable within the housing 2 between a retracted position (shown in figure 1) and an extracted position, in which fingers 4 are able to be received within co-operating seats (not shown) provided in one element secured to the fixed frame of the door, to provide the locking of the door in the closed condition.
  • a lock mechanism of any known type (for example of the rotatable cylinder type or of the double-bit type) for operating a latch element 3 and a bolt including a plurality of locking fingers 4 slidable within the housing 2 between a retracted position (shown in figure 1) and an extracted position, in which fingers 4 are able to be received within co-operating seats (not shown) provided in one element secured to the fixed frame of the door, to provide the locking of
  • the housing 2 has a front wall 5 which is to face towards the outside of the door, with a keyhole 6 (see figures 2, 3) for introducing a key 7 within the lock housing constituted by a slot arranged horizontally (with reference to figure 1).
  • the lock 1 is provided with a safety device, generally designated by 8, arranged in front of the front wall 5, which enables the key 7 to be introduced within the housing 2 of the lock.
  • the safety device 8 comprises a steel cylindrical body 9 rotatably supported around an axis perpendicular to the plane of the front wall 5, by a cup-shaped support body 10 having a base flange 11 provided with holes 12 for engagement of screws 13 for fixing the support body 10 to the front wall 5 of the housing 2.
  • the cylindrical body 9 is crossed by an auxiliary keyhole 14, through which the key 7 is introduced for reaching the main keyhole 6, which is also formed in a plate 15 (see figure 7, reference 6a) which is interposed between the flange 11 and the front wall 2.
  • the cylindrical body 9 is provided with lock means which keep it normally locked in a position in which the auxiliary keyhole 14 is directed vertically (see figure 1) i.e. perpendicularly with respect to the direction of the main keyhole 6, so that by introducing any key through the auxiliary keyhole 14, this key will not be able to enter into the housing 2, since it will abut against plate 15.
  • This locking of the cylindrical body 9 is obtained by means of two key elements 16 radially slidably mounted within two slots 17 formed at diametrically opposite areas of the outer surface of by a plurality of helical springs 18 interposed between the bottom wall 17a of the respective slot 17 and the radially inner planar surface 16a of the key element 17 towards a radially extracted position, in which the key element 16 engages a complementar axial slot 19 formed in the inner surface 10a of the cup-shaped support body 10.
  • each slot 17 at a position spaced both from the bottom 17a of slot 17, and from the respective key element 16, there is fixed a plate 20 which pivotally supports a plurality of radial pins 21 around their central portions.
  • a spacer plate 22 locks the plate 20 above an abutment surface 23 of slot 17 (see figure 3) and has a plurality of wide holes 24 which avoid the interference of plate 22 with the radially outer ends of pins 21.
  • each key element 16 has a curved profile which corresponds also to the profile of slots 19 formed in the inner surface 10a of the support body 10. Therefore, if the key 7 is introduced within the auxiliary keyhole 14 of the cylindrical body 9 and is then rotated so as to impart a rotation to this cylindrical body 9, the reciprocal engagement of the curved contact surfaces between the key elements 16 and the slots 19 would provide a cam-like effect causing a retraction of the key elements 16 within the respective slots 17, with a resulting possibility of a rotation of the cylindrical body 9 which would take place with a sliding of the surfaces 16b of the key elements 16 10. However, the retraction of the key elements 16 within slots 17 is normally prevented by the radial pins 21, whose outer ends impinge against the inner surface 16a of the respective key element 16.
  • the key 7 which is authorized to operate the lock is however provided on each of its two opposite faces with a plurality of permanent magnets 25, fitted within the body of the key, and able to co-operate with the radially inner ends, of ferromagnetic material, of the pins 21.
  • the magnets 25 attract the respective inner ends of pins 21 thus causing a pivotal movement of these pins around their central portion until they reach pre-determined positions (see figure 3) in which the radially outer ends of the pins 21 face co-operating holes 26 formed in the respective key element 16.
  • the angular stroke of the cylindrical body 9 between the locked position with the auxiliary keyhole 14 arranged vertically and the position in which the auxiliary keyhole 14 is aligned with the horizontal keyhole 6, 6a, is defined by the engagement of an axial pin 27 projecting from one end of the cylindrical body 9, within an arched slot 28 of plate 15.
  • Figure 2 of the annexed drawings shows the safety device 8 before introduction of the key 7, with the pins 21 arranged in the normal radial positions, in which they prevent a retraction of the key elements 16.
  • Figure 3 shows the safety device 8 after the introduction of the key 7 into the auxiliary keyhole 14 and the resulting pivotal movement of pins 21 to the positions in which their outer ends come to face the respective holes 26.
  • Figure 4 is a cross-sectional view of the safety device 8 in a plane perpendicular to the axis of the rotatable cylindrical body 9, before introduction of the key.
  • Figure 5 shows the same cross-section of figure 4 after the introduction of the key and before rotation of the cylindrical body 9.
  • Figure 6 is a cross-section corresponding to that of figure 5 which shows the cylindrical body at an intermediate stage of its rotation from the locked position to the position enabling introduction of the key 7 within the lock.
  • the two key elements 16 slide In the enabling position in which the auxiliary keyhole 14 is aligned with the main keyhole 6, one of the two key elements enters into engagement with a third slot 29 of the support body 10 having an arched profile.
  • the safety device provides a high safety degree for the lock and renders impossible to carry out rapidly and easily the reproduction of the key able to operate the lock with the conventional means for reproducing keys.
  • the latter is at first introduced within the auxiliary keyhole 14 of the safety device 8.
  • the bottom wall of the cup-shaped support body 10 naturally has a keyhole 14a mating with keyhole 14 of the cylindrical body 9.
  • the key is rotated to cause the rotation of the cylindrical body 9. This rotation is not prevented by the key elements 16, since the latter may enter back into the respective slots 17 as a result of the pivotal movement of the pins 21 caused by the permanent magnets 25 carried by the key 7, to the positions shown in figure 3, in which the outer ends of the pins 21 face the respective holes 26 of the key elements 16.

Landscapes

  • Lock And Its Accessories (AREA)
EP97830125A 1996-07-19 1997-03-19 Schloss mit Sicherheitsvorrichtung zum Ermöglichen der Einführung eines Schlüssels in das Schloss Withdrawn EP0819812A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO960633 1996-07-19
IT96TO000633A IT1284689B1 (it) 1996-07-19 1996-07-19 Serratura, con dispositivo di sicurezza per abilitare l'introduzione della chiave nella serrtura.

Publications (2)

Publication Number Publication Date
EP0819812A2 true EP0819812A2 (de) 1998-01-21
EP0819812A3 EP0819812A3 (de) 1998-09-16

Family

ID=11414808

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97830125A Withdrawn EP0819812A3 (de) 1996-07-19 1997-03-19 Schloss mit Sicherheitsvorrichtung zum Ermöglichen der Einführung eines Schlüssels in das Schloss

Country Status (2)

Country Link
EP (1) EP0819812A3 (de)
IT (1) IT1284689B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1862616A1 (de) * 2005-06-10 2007-12-05 MOTTURA SERRATURE DI SICUREZZA S.p.A. Sicherheitsverriegelung für Wohnungstüren, Tore u.Ä.
ITRM20090412A1 (it) * 2009-07-31 2011-02-01 Flii Pinto S N C Off Blocchetto di sicurezza per serrature con chiave avente doppia cifratura sullo stelo
WO2014045118A2 (es) 2012-09-24 2014-03-27 Abloy Colombia S.A.S Sistema de seguridad de cierre hermetico multipunto
ITBS20130053A1 (it) * 2013-04-16 2014-10-17 Ruggero Breda Scatola corazzata intifurto per lucchetti con serratura di tipo "yale"

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE469763C (de) * 1928-12-19 Wilhelm Voss Schloss mit zwei hintereinanderliegenden Riegeln
US3837194A (en) * 1973-01-04 1974-09-24 Unican Security Systems Pin tumbler lock
US3948068A (en) * 1975-05-14 1976-04-06 American Locker Company, Inc. Magnetic lock
DE2644367A1 (de) * 1976-10-01 1978-04-06 Mrt Magnet Regeltechnik Gmbh Magnetschluesselbetaetigtes drehzylinderschloss
GB2141478A (en) * 1983-06-14 1984-12-19 Robin Charles Ede Keyhole guard
DE9317012U1 (de) * 1993-11-06 1994-01-13 Sicherheit und Service Inh. Klaus Peter Drumm, 67061 Ludwigshafen Vorrichtung zum Sichern der sichtbaren Schlüsselöffnung bei Schlössern

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE469763C (de) * 1928-12-19 Wilhelm Voss Schloss mit zwei hintereinanderliegenden Riegeln
US3837194A (en) * 1973-01-04 1974-09-24 Unican Security Systems Pin tumbler lock
US3948068A (en) * 1975-05-14 1976-04-06 American Locker Company, Inc. Magnetic lock
DE2644367A1 (de) * 1976-10-01 1978-04-06 Mrt Magnet Regeltechnik Gmbh Magnetschluesselbetaetigtes drehzylinderschloss
GB2141478A (en) * 1983-06-14 1984-12-19 Robin Charles Ede Keyhole guard
DE9317012U1 (de) * 1993-11-06 1994-01-13 Sicherheit und Service Inh. Klaus Peter Drumm, 67061 Ludwigshafen Vorrichtung zum Sichern der sichtbaren Schlüsselöffnung bei Schlössern

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1862616A1 (de) * 2005-06-10 2007-12-05 MOTTURA SERRATURE DI SICUREZZA S.p.A. Sicherheitsverriegelung für Wohnungstüren, Tore u.Ä.
ITRM20090412A1 (it) * 2009-07-31 2011-02-01 Flii Pinto S N C Off Blocchetto di sicurezza per serrature con chiave avente doppia cifratura sullo stelo
WO2014045118A2 (es) 2012-09-24 2014-03-27 Abloy Colombia S.A.S Sistema de seguridad de cierre hermetico multipunto
ITBS20130053A1 (it) * 2013-04-16 2014-10-17 Ruggero Breda Scatola corazzata intifurto per lucchetti con serratura di tipo "yale"

Also Published As

Publication number Publication date
IT1284689B1 (it) 1998-05-21
EP0819812A3 (de) 1998-09-16
ITTO960633A1 (it) 1998-01-19

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