EP1561885A1 - Schutzvorrichtung für Zuhaltungen eines Türschlo es - Google Patents

Schutzvorrichtung für Zuhaltungen eines Türschlo es Download PDF

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Publication number
EP1561885A1
EP1561885A1 EP05002343A EP05002343A EP1561885A1 EP 1561885 A1 EP1561885 A1 EP 1561885A1 EP 05002343 A EP05002343 A EP 05002343A EP 05002343 A EP05002343 A EP 05002343A EP 1561885 A1 EP1561885 A1 EP 1561885A1
Authority
EP
European Patent Office
Prior art keywords
groove
bolt
protective device
protection plate
tail
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
EP05002343A
Other languages
English (en)
French (fr)
Other versions
EP1561885B1 (de
Inventor
Alain Lartisien
Thierry Farcy
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.)
Bricard SAS
Original Assignee
Bricard SAS
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 Bricard SAS filed Critical Bricard SAS
Publication of EP1561885A1 publication Critical patent/EP1561885A1/de
Application granted granted Critical
Publication of EP1561885B1 publication Critical patent/EP1561885B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
    • E05B17/2084—Means to prevent forced opening by attack, tampering or jimmying
    • E05B17/2092—Means responsive to tampering or attack providing additional locking
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/0017—Locks with sliding bolt without provision for latching

Definitions

  • the present invention relates, on the one hand, to a device for protection of a groove of a door lock, and secondly, to a lock of door equipped with such a protective device.
  • a burglar wishing to penetrate inside a local begins by fracturing the barrel to extract it from the lock box of door. Once this task has been completed, the burglar has access to internal organs of the lock and can therefore easily proceed to unlocking the bolt previously housed in the striker fixed in the door jamb to protect. For this, the burglar raises the throat whose teeth cooperate with the teeth presented by the tail of the bolt. The The bolt is no longer locked in translation and the burglar can place it in his rest position.
  • the present invention aims to solve the problem mentioned previously, and for this purpose consists of a device for protecting a throat a door lock, said groove being provided to be arranged on one side of a tail of a locking bolt and being fit, under the action of a first elastic return means, to come into engagement with presented teeth by the tail of the locking bolt, characterized in that it comprises a protective plate intended to be positioned on the other side of the tail of the bolt and designed to have at least one suitable protuberance, under the effect of at least one second elastic return means, to come to bear against an associated stop element in the groove, this second elastic return means being suitable, if the protuberance is disengaged from its associated abutment element, to force said protective plate to rotate around an axis in order to position said protuberance on the trajectory of the tail of the bolt.
  • a protection device according to the invention is therefore active since it is suitable for effectively counteract such an attempted break-in.
  • the second means of elastic return is achieved using a torsion spring.
  • the latter has a branch designed to come to bear against the protection plate.
  • a groove is formed along the edge top of the protection plate in order to receive the spring branch of torsion. It should be understood that a side compression spring could be used in place of such a torsion spring.
  • the associated abutment element has a substantially flat contact surface.
  • a shoulder is advantageously arranged in the throat.
  • the protrusion of the protective plate includes a tooth extended by a lug adapted to be inserted between the shoulder and the stop element arranged in the throat.
  • the protection plate can not rotate in one direction or another.
  • the protection plate comprises a substantially oblong light traversed by the axis about which said plate protection can rotate.
  • a clearance is preferably provided at the rear of the end of the locking bolt to allow the pivoting of the plate protection.
  • the present invention also relates to a lock of door comprising a trunk crossed by a barrel provided with a bit rotational mobile housed in the trunk, characterized in that it comprises a protection device according to the invention.
  • a door lock 1 as shown in FIG. FIG. 1, comprises a box 2 made with the aid of two flanges 3 assembled to one another.
  • This chest 2 is attached to a headrest 4, and contains the parts well known to those skilled in the art usually used to ensure the locking and unlocking a locking bolt 5 extended by a tail 9 provided with teeth 17.
  • each flange 3 comprises, in the lower part, a central opening 6 adapted to the section of a barrel 7, the latter presenting a first portion 8 and a second portion (not shown) separated one on the other by a medial bit 10 rotating in rotation.
  • the bit 10 is housed in said trunk 2, and the first part 8 and the second part of the barrel 7 protrude respectively on one side and the other of said box 2.
  • the bit 10 is intended to cooperate with a 11 when it is rotated by means of a key 40 introduced into the barrel 7.
  • this groove 11 is constituted by a plate having an inner face 12 arranged on one side of the tail 9 of the bolt 5.
  • This groove 11 has an oblong light 13 crossed by a transverse axis 14 integral with the trunk 2.
  • the groove 11 comprises, on the one hand, a protruding shoulder 15 in which is dug a recess 16 in order to constitute a housing adapted to cooperate with the teeth 17 of the tail 9 of the bolt 5, and secondly, a stop element 18, separated from the shoulder 15, and having a substantially planar contact surface 19.
  • This shoulder 15 is surmounted by a stud 20 on which is centered a first end of a compression spring 21, the latter also having a second end bearing against a fixed element of the door lock 1.
  • a protection plate 22 provided with an inner face 24 is attached facing the groove 11, on the other side of the tail 9 of the bolt 5.
  • This plate of protection 22 has an oblong slot through which the axis 14 passes. transversal solidaire 2.
  • the protection plate 22 has a protuberance 26 comprising a tooth 27 extended by a lug 28.
  • a groove 29 parallel to the tail 9 of the bolt 5 is dug at the top of the protrusion 26 and constitutes a housing apt to accommodate a first branch 30 of a torsion spring 31 placed around a fixed element 32 integral with the door lock 1.
  • the second branch 33 of this torsion spring 31 is provided for abut against the return 34 of one of the two flanges 3.
  • This element fixed 32 overhangs the groove 11 and the protective plate 22, and is offset from them.
  • the groove 11 and the protection plate 22 are returned, respectively by the compression spring 21 and the torsion spring 31, towards the tail 9 of the bolt 5.
  • one of the teeth 17 of the 9 of the bolt 5 is housed in the recess 16 presented by the shoulder 15 of the groove 11 so as to lock the bolt 5 in translation
  • the tooth 27 of the protrusion 26 rests on the tail 9 of the bolt 5
  • the lug 28 of the protrusion 26 is inserted between the shoulder 15 and the abutment member 18 arranged in the groove 11. More precisely, the lug 28 is intended to come resting against the substantially flat contact surface 19 of the element of stop 18.
  • the teeth 17 of the tail 9 of the bolt 5 are disengaged from the groove 11, and the locking bolt 5 can then be driven in translation by said bit 10 during the second half of his race.
  • the groove 11 and the protection plate 22 are then driven by a movement of translation downwards under the effect of the compression spring 21 and the spring torsion 31 which gradually relax.
  • the bit 10 has reached the lowest point, one of the teeth 17 of the tail 9 of the bolt 5 is housed in the recess 16 of the groove 11, and it follows that the bolt 5 is blocked in translation.
  • the groove 11 and the protective plate 22 remain stationary one relative to the other, and consequently the lug 28 remains in support against the contact surface 19 of the abutment element 18.

Landscapes

  • Lock And Its Accessories (AREA)
EP20050002343 2004-02-05 2005-02-02 Schutzvorrichtung für Zuhaltungen eines Türschlo es Active EP1561885B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0401116A FR2866049B1 (fr) 2004-02-05 2004-02-05 Dispositif de protection d'une gorge d'une serrure de porte
FR0401116 2004-02-05

Publications (2)

Publication Number Publication Date
EP1561885A1 true EP1561885A1 (de) 2005-08-10
EP1561885B1 EP1561885B1 (de) 2008-10-15

Family

ID=34673900

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050002343 Active EP1561885B1 (de) 2004-02-05 2005-02-02 Schutzvorrichtung für Zuhaltungen eines Türschlo es

Country Status (3)

Country Link
EP (1) EP1561885B1 (de)
DE (1) DE602005010314D1 (de)
FR (1) FR2866049B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2438491A (en) * 2006-05-15 2007-11-28 Michael Joyce Door entry prevention device with biased lock concealing device
WO2008094472A2 (en) * 2007-01-26 2008-08-07 Stanley Chung A type of main lock structure and a door lock comprising such a main lock structure
ITRM20090258A1 (it) * 2009-05-20 2010-11-21 Gruben Italia Security S P A Serratura di sicurezza.
FR2963634A1 (fr) * 2010-08-06 2012-02-10 Bricard Serrure de porte comprenant un dispositif de protection de gorge

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2564884A1 (fr) * 1984-05-23 1985-11-29 Chauvat Sofranq Dispositif de securite pour serrure du genre en applique.
DE8814086U1 (de) * 1988-11-10 1989-01-05 Mohr, Hans-Dietrich, 5830 Schwelm Schloß
DE3800298A1 (de) * 1988-01-08 1989-07-20 Karrenberg Fa Wilhelm Einsteckschloss
EP0651116A1 (de) * 1993-10-29 1995-05-03 Vachette Türschloss mit Schutzeinrichtung
FR2770247A1 (fr) * 1997-10-28 1999-04-30 Fichet Serrurerie Batiment Fsb Dispositif de blocage d'un pene de serrure de porte en cas de tentative d'effraction
EP1199427A1 (de) * 2000-10-20 2002-04-24 Stremler Schloss mit verschiebbarem Riegel und verbesserter Sicherheit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2564884A1 (fr) * 1984-05-23 1985-11-29 Chauvat Sofranq Dispositif de securite pour serrure du genre en applique.
DE3800298A1 (de) * 1988-01-08 1989-07-20 Karrenberg Fa Wilhelm Einsteckschloss
DE8814086U1 (de) * 1988-11-10 1989-01-05 Mohr, Hans-Dietrich, 5830 Schwelm Schloß
EP0651116A1 (de) * 1993-10-29 1995-05-03 Vachette Türschloss mit Schutzeinrichtung
FR2770247A1 (fr) * 1997-10-28 1999-04-30 Fichet Serrurerie Batiment Fsb Dispositif de blocage d'un pene de serrure de porte en cas de tentative d'effraction
EP1199427A1 (de) * 2000-10-20 2002-04-24 Stremler Schloss mit verschiebbarem Riegel und verbesserter Sicherheit

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2438491A (en) * 2006-05-15 2007-11-28 Michael Joyce Door entry prevention device with biased lock concealing device
GB2438491B (en) * 2006-05-15 2011-06-01 Michael Joyce Door entry prevention device
WO2008094472A2 (en) * 2007-01-26 2008-08-07 Stanley Chung A type of main lock structure and a door lock comprising such a main lock structure
WO2008094472A3 (en) * 2007-01-26 2008-11-20 Stanley Chung A type of main lock structure and a door lock comprising such a main lock structure
CN101008297B (zh) * 2007-01-26 2010-10-13 庄子平 一种组合门锁
ITRM20090258A1 (it) * 2009-05-20 2010-11-21 Gruben Italia Security S P A Serratura di sicurezza.
FR2963634A1 (fr) * 2010-08-06 2012-02-10 Bricard Serrure de porte comprenant un dispositif de protection de gorge

Also Published As

Publication number Publication date
FR2866049B1 (fr) 2006-06-09
FR2866049A1 (fr) 2005-08-12
DE602005010314D1 (de) 2008-11-27
EP1561885B1 (de) 2008-10-15

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