EP0721035A1 - Unité de clé et serrure cylindrique - Google Patents

Unité de clé et serrure cylindrique Download PDF

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Publication number
EP0721035A1
EP0721035A1 EP95119473A EP95119473A EP0721035A1 EP 0721035 A1 EP0721035 A1 EP 0721035A1 EP 95119473 A EP95119473 A EP 95119473A EP 95119473 A EP95119473 A EP 95119473A EP 0721035 A1 EP0721035 A1 EP 0721035A1
Authority
EP
European Patent Office
Prior art keywords
key
plug
pins
cylinder
pin
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
EP95119473A
Other languages
German (de)
English (en)
Other versions
EP0721035B1 (fr
Inventor
Renato Botteon
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.)
Silca SpA
Original Assignee
Silca 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 Silca SpA filed Critical Silca SpA
Publication of EP0721035A1 publication Critical patent/EP0721035A1/fr
Application granted granted Critical
Publication of EP0721035B1 publication Critical patent/EP0721035B1/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
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0039—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with pins which slide and rotate about their axis

Definitions

  • This invention relates to a key and cylinder lock unit.
  • Locks comprising a cylinder forming the lock body and a plug housed in the cylinder and provided with a radially projecting pawl for operating a bolt.
  • the cylinder and plug comprise a plurality of radial cylindrical recesses in which pins formed in two parts are housed and can slide axially.
  • the axial position of the pins is such that the separation surface between their two constituent parts does not coincide with the surface of discontinuity between the plug and cylinder, with the result that the pins act as locking members for preventing the plug rotating relative to the cylinder.
  • the key is inserted into a corresponding seat provided in the plug, it causes the various pins to move axially in accordance with its pattern, such as to make the separation surface between the two constituent parts of each pin coincide with the surface of discontinuity between the plug and cylinder, to enable the plug to be rotated by said key.
  • patterned keys consisting of a key comprising along one edge a series of notches, which determine, by supporting them, the correct positioning of pins present in the lock and urged against said notches by springs.
  • This type of key is advantageous in that if for example the notches are formed by a cutter the axis of which is inclined to the longitudinal axis of the shaft, they are able to cause each pin to move not only axially but to also rotate, hence considerably increasing the number of possible different patterns, to the advantage of security.
  • this type of key also has certain drawbacks, and in particular enables the key pattern to be read on sight by an expert, hence enabling it to be duplicated even without the original key being available.
  • this type of key has one or both its edges toothed, such that it may damage clothing, bags and surfaces in general with which the key comes into contact.
  • Another kwown type of key uses a flat shank with its major surface and possibly its other surfaces comprising recesses for housing the ends of the pins which lock the cylinder to the plug. As the depth of each recess varies, the axial position of the respective pin also varies, and only if the key pattern corresponds to that particular lock can its insertion into the plug cause this latter to be released and to be able to be rotated relative to the cylinder.
  • This known type of key has a smooth edge and therefore cannot damage bags or clothing, and in addition makes it more difficult to identify the pattern merely by viewing the key.
  • it can cause the pins only to translate axially but not to rotate, and consequently offers a relatively limited number of different combinations, and hence an unsatisfactory degree of security.
  • An object of the invention is to obviate the aforesaid drawbacks by providing a key and cylinder lock unit having a high degree of security.
  • a further object of the invention is to provide a unit in which for releasing the plug from the cylinder the pins are required not only to move axially but also to rotate.
  • a further object of the invention is to provide a unit in which the key pattern cannot be easily identified by direct viewing.
  • a further object of the invention is to provide a unit in which it is extremely difficult to duplicate the key, in contrast to known keys, which can be cut by a file or drill, according to the type.
  • a further object of the invention is to provide a unit in which key duplication requires machining along three axes.
  • the unit according to the invention comprises a lock, indicated overall by 2, and a key, indicated overall by 4.
  • the lock comprises a plug 6 housed in a cylindrical cavity of a cylinder 8, of the type for example commonly known as a "European cylinder", ie with a cylindrical portion housing the plug 6 and a radial appendix housing the pin mechanism for locking and releasing the plug.
  • the cylinder 8 comprises a plurality of cylindrical recesses 10 (five in the illustrated example) having their axes mutually parallel and perpendicular to the axis of the cylindrical cavity housing the plug 6, which also comprises a like number of cylindrical recesses 12 of the same diameter, these being coaxially aligned with the corresponding recesses in the cylinder 8 when the plug 6 is in a certain precise angular position.
  • the five recesses 12 of the plug 6 open into a longitudinal seat 14, also provided in the plug 6, for the insertion of the key 4.
  • Pairs of pins 16 and counterpins 18 are free to slide axially in and rotate within each pair of aligned recesses 10,12 and are in mutual contact along a castellated surface.
  • Each counterpin 18 is associated with a spring 22 also housed in the corresponding cylindrical recess 10 and interposed between a disc 20, resting on said counterpin 18, and a cap 24 applied to the end of the same recess 10.
  • the purpose of the spring 22 is to urge the pin-counterpin pair towards the longitudinal seat 14 until a retention appendix 26 emerging radially from the pin 16 encounters a shoulder 28 of a longitudinal channel 29 provided in the body of the plug between the adjacent pins 16, its purpose being to limit the rotation of the pin-counterpin pair between the two walls of said channel 29.
  • each pin 16 distant from the counterpin 18 is provided with an eccentric appendix 30, the dimensions of the various parts concerned being such that when each retention appendix 26 rests against the corresponding shoulder 28, the eccentric appendix 30 of each pin 16 projects into the longitudinal seat 14 for the key 4.
  • the cavity in the cylinder 8 which houses the plug 6 is perfectly cylindrical, the corresponding lateral surface of the plug has a characteristic stepped shape compatible with the castellated shape of the surface of separation between each pin 16 and the relative counterpin 18 (see Figures 2,5,6).
  • the key 4 comprises a handgrip 33 and a shank 34 of overall parallelepiped section, with a chamfered tip and with each major face comprising a continuous channel 36 of width just greater than the diameter of the eccentric appendices 30.
  • the channel 36 it would be sufficient for the channel 36 to be provided on only one face of the key, however the presence of two channels symmetrical about the longitudinal axis of the key makes this reversible.
  • the channel 36 which is open and is slightly flared at the end of the key 4, is formed from a succession of several rectilinear portions arranged at an angle to each other so as to cause the channel to assume a broken-line configuration.
  • the depth of the various portions is not constant and consequently the junction points of adjacent portions are at different distances from the outer face of the key.
  • each pin-counterpin pair is such that the separation surface between the two exactly prolongs the stepped lateral surface of the plug 6, to hence enable this latter to be rotated by the key 4.
  • extraction of the key 4 causes the various pin-counterpin pairs to move in the reverse direction, and when the key has been completely extracted all the pairs lie at the same angle corresponding to the position of the open end of the channel 36.
  • This position is totally different from that set by the key 4 when completely inserted, and maintains the plug 6 locked to the cylinder 8.
  • each pin 16 comprises in its lateral surface a rectilinear groove 38, which for that angular position of each pin-counterpin pair established by the insertion of the key 4 is in phase with the others, to allow engagement by a further pin 40 movable axially between a position totally housed within the plug 6 and a position emerging from said plug to engage a front-standing recess 42 provided in the cylinder 8.
  • the key and cylinder lock unit according to the invention is considerably advantageous, and in particular:

Landscapes

  • Lock And Its Accessories (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Reciprocating Pumps (AREA)
EP95119473A 1994-12-27 1995-12-11 Unité de clé et serrure cylindrique Expired - Lifetime EP0721035B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVE940054 1994-12-27
IT94VE000054A IT1268687B1 (it) 1994-12-27 1994-12-27 Unita' di chiave e serratura a cilindro

Publications (2)

Publication Number Publication Date
EP0721035A1 true EP0721035A1 (fr) 1996-07-10
EP0721035B1 EP0721035B1 (fr) 1999-03-17

Family

ID=11424059

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95119473A Expired - Lifetime EP0721035B1 (fr) 1994-12-27 1995-12-11 Unité de clé et serrure cylindrique

Country Status (5)

Country Link
EP (1) EP0721035B1 (fr)
AT (1) ATE177812T1 (fr)
DE (1) DE69508374T2 (fr)
ES (1) ES2129742T3 (fr)
IT (1) IT1268687B1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1013856A1 (fr) * 1998-12-23 2000-06-28 Tiefenthal Schliess-Systeme GmBH Serrure cylindrique à clé plate
WO2000039421A1 (fr) * 1998-12-28 2000-07-06 Stefano Ficco Serrure haute securite et sa cle
EP2090726A3 (fr) * 2008-02-05 2011-11-02 Talleres De Escoriaza, S.A. Serrure à goupilles de combinaison de section non circulaires et excentriques pouvant être positionnées par rotation et clé avec des indentations de combinaison difficile à reproduire frauduleusement
ES2368543A1 (es) * 2008-12-11 2011-11-18 Talleres De Escoriaza, S.A. Llave de cerradura con huellas de combinación de difícil reproducción fraudulenta.
RU2474659C1 (ru) * 2011-05-27 2013-02-10 Общество С Ограниченной Ответственностью "Инвек" Цилиндровый замок
CN103883168A (zh) * 2014-04-10 2014-06-25 陈小仁 一种隐藏式旋转锁芯和开启钥匙
CN104806078A (zh) * 2015-04-30 2015-07-29 陈小仁 一种双旋转锁和开启钥匙的组合
CN109723287A (zh) * 2019-02-02 2019-05-07 文江洪 超c类锁芯

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2337222B1 (es) * 2008-02-05 2011-01-07 Talleres De Escoriaza, S.A. "cerradura con pitones de combinacion de seccion no circular y excentricidad posicionable en rotacion".

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987004749A1 (fr) * 1986-01-31 1987-08-13 Widén Innovation Ab Serrure, panneton de cle, goupille de verrouillage et organe de clavetage

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987004749A1 (fr) * 1986-01-31 1987-08-13 Widén Innovation Ab Serrure, panneton de cle, goupille de verrouillage et organe de clavetage

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1013856A1 (fr) * 1998-12-23 2000-06-28 Tiefenthal Schliess-Systeme GmBH Serrure cylindrique à clé plate
WO2000039421A1 (fr) * 1998-12-28 2000-07-06 Stefano Ficco Serrure haute securite et sa cle
EP2090726A3 (fr) * 2008-02-05 2011-11-02 Talleres De Escoriaza, S.A. Serrure à goupilles de combinaison de section non circulaires et excentriques pouvant être positionnées par rotation et clé avec des indentations de combinaison difficile à reproduire frauduleusement
EP2511455A1 (fr) * 2008-02-05 2012-10-17 Talleres De Escoriaza, S.A. Verrou avec broche de combinaison de section non circulaire et excentricité pouvant être positionné en rotation et clé de verrou dotée dýune indentation de combinaison difficile à reproduire frauduleusement
ES2368543A1 (es) * 2008-12-11 2011-11-18 Talleres De Escoriaza, S.A. Llave de cerradura con huellas de combinación de difícil reproducción fraudulenta.
RU2474659C1 (ru) * 2011-05-27 2013-02-10 Общество С Ограниченной Ответственностью "Инвек" Цилиндровый замок
CN103883168A (zh) * 2014-04-10 2014-06-25 陈小仁 一种隐藏式旋转锁芯和开启钥匙
CN103883168B (zh) * 2014-04-10 2016-06-01 陈小仁 一种隐藏式旋转锁芯和开启钥匙
CN104806078A (zh) * 2015-04-30 2015-07-29 陈小仁 一种双旋转锁和开启钥匙的组合
CN104806078B (zh) * 2015-04-30 2017-04-05 陈小仁 一种双旋转锁和开启钥匙的组合
CN109723287A (zh) * 2019-02-02 2019-05-07 文江洪 超c类锁芯
CN109723287B (zh) * 2019-02-02 2024-01-16 文江洪 超c类锁芯

Also Published As

Publication number Publication date
EP0721035B1 (fr) 1999-03-17
IT1268687B1 (it) 1997-03-06
ITVE940054A1 (it) 1996-06-27
ATE177812T1 (de) 1999-04-15
ES2129742T3 (es) 1999-06-16
ITVE940054A0 (it) 1994-12-27
DE69508374D1 (de) 1999-04-22
DE69508374T2 (de) 1999-09-09

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