EP1091058B1 - Stator d'une serrure cylindrique - Google Patents

Stator d'une serrure cylindrique Download PDF

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Publication number
EP1091058B1
EP1091058B1 EP19990830595 EP99830595A EP1091058B1 EP 1091058 B1 EP1091058 B1 EP 1091058B1 EP 19990830595 EP19990830595 EP 19990830595 EP 99830595 A EP99830595 A EP 99830595A EP 1091058 B1 EP1091058 B1 EP 1091058B1
Authority
EP
European Patent Office
Prior art keywords
flange
housings
lock
bridge
cylindrical
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.)
Expired - Lifetime
Application number
EP19990830595
Other languages
German (de)
English (en)
Other versions
EP1091058A1 (fr
Inventor
Sergio Mottura
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
Priority to ES99830595T priority Critical patent/ES2166215T3/es
Priority to DE1999600510 priority patent/DE69900510T2/de
Priority to EP19990830595 priority patent/EP1091058B1/fr
Priority to CNB001288032A priority patent/CN1332112C/zh
Priority to TR2000/02726A priority patent/TR200002726A1/xx
Publication of EP1091058A1 publication Critical patent/EP1091058A1/fr
Application granted granted Critical
Publication of EP1091058B1 publication Critical patent/EP1091058B1/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
    • E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
    • E05B9/04—Casings of cylinder locks
    • E05B9/048—Stator reinforcements

Definitions

  • the present invention relates to cylinder locks.
  • the invention relates to a body of a cylinder lock, of the type comprising two opposite coaxial cylindrical half-housings, which are for receiving the cylindrical core of the lock, a flange extending on one side thereof, in which holes are formed for cylinder lock tumblers, said holes opening on an inner cavity of the cylindrical half-housings, said cylindrical half-housings being separated from each other by a notch which is to be occupied by a rotatable pawl of the lock, said notch extending into the flange so as to define two half-flanges adjacent to the two cylindrical half-housings and connected to each other by a bridge-like portion, in which a hole is formed for engagement of a lock fixing screw, said body further including two reinforcing elements fitted within two opposite faces of said flange respectively, and each having a portion surrounding said hole.
  • a body of a cylinder lock having all the above indicated features is known from DE-U-29 619 634.
  • This document shows a cylinder lock body of the above indicated type in which the reinforcing element provided at each face of the flange has a substantially spectacles-like shape, with a central portion surrounding the hole for the fixing screw and two ends extending in the two above mentioned half-flanges.
  • the problem which the device according to the prior art intends to solve is that of increasing the strength of the body of the cylinder lock at said bridge-like portion.
  • the body of the lock is made of brass and therefore tends to brake at said bridge-like portion if it is subject to a bending deformation caused for instance by a burglar which engages one of the two half-housings by a tool and causes it to swing alternatively upwardly and downwardly until a rupture takes place at the weakened portion represented by said bridge-like portion.
  • the device according to the prior art intends to increase the flexural strength of the lock body at the bridge-like portion, by adding two reinforcing elements at the two flange faces which are made of a high strength material, such as steel.
  • each of the two reinforcing elements on each of the two flange faces extends by a substantial part on both the half-flanges, so as to contribute efficiently to the increase of the flexural strength of the lock body.
  • the object of the present invention is that of providing a lock body of the type indicated at the beginning which is able to efficiently hinder the work of a burglar in a much more simpler and efficient way with respect to the above described prior art.
  • the cylinder lock body according to the invention is characterized in that on one face of the flange the respective reinforcing elements extends only on one half-flange and the bridge-like portion, whereas on the other face of the flange, the respective reinforcing element extends only on the other half-flange and the bridge-like portion.
  • the reinforcing elements have the object to prevent a flexural rupture of the lock body. Therefore, it is necessary that each reinforcing element extends on both the half-flanges.
  • the reinforcing elements are not for preventing a flexural rupture of the lock body at the bridge-like portion. Rather, this rupture is considered as inevitable and the device is arranged so that once the lock body has been broken at the bridge-like portion, the two half-housings in which it is divided cannot be separated from each other.
  • each reinforcing element is freely rotatable around the lock fixing screw, so that it enables a relative rotation of the two half-housings of the body around the screw axis, while preventing a full separation of these half portions, since the same screw is rotatably engaged through the both the reinforcing elements.
  • each reinforcing element extends on both the half-flanges of the lock body. Therefore, if the burglar exerts a force sufficient to brake also the two reinforcing elements, the two half-housings are immediately separable from each other.
  • the rupture of the reinforcing elements cannot take place and therefore the reinforcing elements prevent the separation of the two half-housings in any case, even after that the brass part is broken. It is naturally essential, as discussed, in order to obtain this result, that on one face of the flange the respective reinforcing element extends only on one of the two half-flanges, and on the other face, the respective reinforcing element extends only on the other half-flange.
  • numeral 1 generally designates a cylinder lock body, comprising two opposite coaxial cylindrical half-housings 2, 3 which are for receiving the cylindrical core of the lock (not shown). On one side of the cylindrical half-housings 2, 3 there extends a flange 4 in which holes 5 are formed, according to a technique known per se, which are for engagement of cylinder lock tumblers (also not shown), these holes opening on the inner cavity of the cylindrical half-housings 2, 3.
  • the two half-housings 2, 3 are separated from each other by a notch 6 which is to be occupied by a rotatable pawl of the lock (not shown), the notch extending also through a portion of the flange 4, so as to define two half-flanges 7, 8 connected to each other by a bridge-like portion 9.
  • the bridge-like portion 9 has a threaded through hole 10 for engagement of a screw (not shown) serving for fixing the lock body to a supporting frame secured for example to a door.
  • Both the reinforcing elements 11, 12 are made of steel, whereas the body 1 of the lock is typical made of brass.
  • the two reinforcing elements 11, 12 each extend only on one of the two half-flanges 7, 8 and both have one end 11a, 12a extending on the bridge-like portion 9 and forming an highlet with a hole 11b, 12b surrounding the hole 10 for the fixing screw.
  • a burglar may try to cause a flexural rupture of the body 1 of the lock at the bridge-like portion 9, by engaging one of the two half-housings 2, 3 by a tool, and causing it to move alternatively upwardly and downwardly, until a complete flexural rupture of the body 1 at the portion 9 is obtained.
  • the reinforcing element provided on each of the two faces of flange 4 has a spectacles-like shape, with a central part surrounding the hole 10 and two end parts.
  • each reinforcing element extends instead only on one respective half-flange, while having an end portion surrounding the hole 10.
  • the two reinforcing elements are elements which tend to increase the flexural strength of the lock body.
  • the burglar is able to exert a force sufficient to obtain the rupture also of the reinforcing elements, the two half-housings 2, 3 are immediately separable from each other and the burglar can then easily complete his work and remove the lock.
  • the reinforcing elements 11, 12 do not give any contribution to the flexural strength at the bridge-like portion 9.
  • the two half-housings 7, 8 are freely rotatable around the fixing screw which engaged the hole 10, since the end portions 11b and 12b of the reinforcing elements 11, 12 surround the screw. No matter how high is the force transmitted by the burglar, he will never be able to obtain the full separation of the two half-housings, even if the bridge-like portion 9 is broken.
  • the device according to the invention is able to provide a safety degree much higher against unauthorized brake, with much simpler and inexpensive means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Casings For Electric Apparatus (AREA)
  • Lock And Its Accessories (AREA)
  • Dowels (AREA)

Claims (4)

  1. Corps de serrure cylindrique, comprenant deux demi-boítiers cylindriques coaxiaux opposés (2, 3), qui sont destinés à recevoir le noyau cylindrique de la serrure, comportant une bride (4) s'étendant sur un de ses côtés et dans laquelle sont formés des trous (5) pour des fichets de serrure cylindrique, lesdits trous s'ouvrant vers une cavité intérieure des demi-boítiers cylindriques, lesdits demi-boítiers cylindriques (2,3) étant séparés l'un de l'autre par une encoche (6) destinée à être occupée par un loquet rotatif de la serrure et s'étendant dans la bride (4) de manière à définir deux demi-brides (7, 8) adjacentes aux deux demi-boítiers cylindriques (2, 3) et connectées l'une à l'autre par une partie en forme de pontet (9), dans laquelle est formé un trou (10) pour l'engagement d'une vis de fixation de serrure, ledit corps (1) incluant en outre deux éléments de renfort (11,12) qui sont respectivement attachés sur les deux faces opposées de ladite bride (4) et ayant chacun une partie (11a, 12a) qui entoure le dit trou (10),
    caractérisé en ce que sur une face de la bride (4) l'élément de renfort respectif (11) s'étend uniquement sur une demi-bride (7) et sur la partie en forme de pontet (9), tandis que sur l'autre face de la bride (4) l'élément de renfort respectif (12) s'étend uniquement sur l'autre demi-bride (8) et sur la partie en forme de pontet (9).
  2. Corps de serrure cylindrique selon la revendication 1, caractérisé en ce que chaque élément de renfort (11, 12) comporte une extrémité en forme d'oeillet (11a, 11b) entourant ledit trou (10) pour la vis de fixation, et une extrémité opposée (11c, 12c) ayant une forme analogue à un cadre et attachée sur la demi-bride respective (7, 8).
  3. Corps de serrure cylindrique selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que chaque élément de renfort (11, 12) est constitué par une plaque plane en acier logée à l'intérieur d'un siège (13a) de forme complémentaire formé dans la face respective de la bride (4).
  4. Serrure cylindrique, caractérisée en ce qu'elle comprend un corps de serrure selon l'une quelconque des revendications précédentes.
EP19990830595 1999-09-22 1999-09-22 Stator d'une serrure cylindrique Expired - Lifetime EP1091058B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES99830595T ES2166215T3 (es) 1999-09-22 1999-09-22 Cuerpo de cerradura de cilindro.
DE1999600510 DE69900510T2 (de) 1999-09-22 1999-09-22 Schliesszylinderstator
EP19990830595 EP1091058B1 (fr) 1999-09-22 1999-09-22 Stator d'une serrure cylindrique
CNB001288032A CN1332112C (zh) 1999-09-22 2000-09-21 圆筒锁本体
TR2000/02726A TR200002726A1 (tr) 1999-09-22 2000-09-21 Silindir kilit gövdesi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19990830595 EP1091058B1 (fr) 1999-09-22 1999-09-22 Stator d'une serrure cylindrique

Publications (2)

Publication Number Publication Date
EP1091058A1 EP1091058A1 (fr) 2001-04-11
EP1091058B1 true EP1091058B1 (fr) 2001-11-28

Family

ID=8243597

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990830595 Expired - Lifetime EP1091058B1 (fr) 1999-09-22 1999-09-22 Stator d'une serrure cylindrique

Country Status (5)

Country Link
EP (1) EP1091058B1 (fr)
CN (1) CN1332112C (fr)
DE (1) DE69900510T2 (fr)
ES (1) ES2166215T3 (fr)
TR (1) TR200002726A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL174062A (en) * 2006-03-02 2011-07-31 Mul T Lock Technologies Ltd Attack resistant double cylinder lock
GB2436588A (en) * 2006-03-29 2007-10-03 David Brunskill Windows Ltd Door lock with securing means
DE502008002279D1 (de) * 2008-02-14 2011-02-24 Keso Ag Steg zum Verbinden der beiden Zylinderhälften eines längenvariablen Doppelschliesszylinders

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29619634U1 (de) 1996-11-12 1998-03-26 Wilka Schliestechnik Gmbh Doppel-Profilschließzylinder

Also Published As

Publication number Publication date
CN1332112C (zh) 2007-08-15
ES2166215T3 (es) 2002-04-01
EP1091058A1 (fr) 2001-04-11
DE69900510T2 (de) 2002-05-08
CN1288997A (zh) 2001-03-28
TR200002726A1 (tr) 2001-04-20
DE69900510D1 (de) 2002-01-10

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