EP0943761A1 - Serrure à gorges plates et code securitéchangeable - Google Patents

Serrure à gorges plates et code securitéchangeable Download PDF

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Publication number
EP0943761A1
EP0943761A1 EP99101722A EP99101722A EP0943761A1 EP 0943761 A1 EP0943761 A1 EP 0943761A1 EP 99101722 A EP99101722 A EP 99101722A EP 99101722 A EP99101722 A EP 99101722A EP 0943761 A1 EP0943761 A1 EP 0943761A1
Authority
EP
European Patent Office
Prior art keywords
lock
bolt
teeth
tumblers
tang
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
EP99101722A
Other languages
German (de)
English (en)
Other versions
EP0943761B1 (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
COSTRUZIONI ITALIANE SERRATURE
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
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Publication of EP0943761A1 publication Critical patent/EP0943761A1/fr
Application granted granted Critical
Publication of EP0943761B1 publication Critical patent/EP0943761B1/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
    • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
    • E05B35/08—Locks for use with special keys or a plurality of keys ; keys therefor operable by a plurality of keys
    • E05B35/083—Locks for use with special keys or a plurality of keys ; keys therefor operable by a plurality of keys with changeable combination
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/14—Tumblers
    • E05B2015/146—Tumblers with parts movable to each other

Definitions

  • the present invention relates to a lock with flat tumblers and changeable code.
  • Locks with flat tumblers and changeable code are known in the art and in particular, a lock of this type is disclosed in Italian patent no. 1264745 in the name of the same Applicant.
  • changing the code in this lock is troublesome, since a code-changing key is required which cannot be easily managed by all of the users.
  • the aim of the present invention is to provide a lock with flat tumblers and changeable code with which code changing is considerably simplified with respect to conventional locks.
  • the reference numeral 1 designates the faceplate of the casing of a lock, which also comprises the bottom 2, which is surrounded by a peripheral wall composed of the walls 3, 4 and 5, which with reference to the drawing and for the sake of convenience in description are termed upper wall, rear wall and lower wall, respectively.
  • the reference numeral 6 designates the cover for closing the casing.
  • a plurality of circular openings 7 are formed in the faceplate 1; a plurality of cylindrical pins protrude externally through openings 7 and form a bolt 8 which is slideable in the direction A and is fixed to a tang 9 which lies inside the casing.
  • the tang 9 is constituted by a flat bar which is thinner than the bolt 8, which is assumed to lie on the centerline plane of the casing.
  • the tang 9 has, along its lower edge, a plurality of teeth 10 which form a rack on which the bolt actuation key acts.
  • a slot 11 is formed in the tang 9 and is elongated in the direction A; a threaded bush 12 engages in slot 11 and rises from the bottom 2 of the casing to which it is fixed.
  • the bush 12, together with the bolt 8, allows to guide the tang 9 during its sliding, and a screw is screwed therein.
  • the cover 6 is fixed by means of said screw so as to close the casing of the lock.
  • each tumbler 13 is composed of a rectangular part 14 and of a part 15 which has a composite shape.
  • the part 14 is termed changing strip hereinafter owing to its code-changing function, as described hereinafter, while the part 15 is termed retainer lamina in relation to its ability to prevent the sliding of the bolt 8.
  • the strip 14 (see Figure 7) is provided with two slots 16 and 17 which are elongated in the direction B at right angles to the direction A and with a lower end 18 which is shaped so that it can be engaged by the profile of a double-pattern key 19 which, inserted through an opening 20 of the bottom 2 or of the cover 6 of the casing, lifts the strip 14 in the direction B.
  • One edge of the strip 14 is straight and parallel to the slots 16 and 17 and has a set of teeth 21 which is adapted to mesh with a set of teeth 22 formed on a contiguous edge of the lamina 15.
  • the lamina 15 comprises a central portion 23 which is rectangular and elongated in the direction A and from which two rectangular wings 24 and 25 protrude upwards and downwards; slots 26 and 27 are formed in wings 24,25 and are elongated in a direction which is parallel to the slots 16 and 17.
  • the slots 26 and 27 are engaged by the bush 12 and by an additional bush 28, so that the laminae 15 are only movable in the direction B.
  • each lamina 15 there is an opening 29 which is elongated in the direction A and from the upper longitudinal edge of which there protrudes a series of teeth 30 which, together with a second series of mutually opposite teeth 31 which protrude from the lower edge of the opening 29, form the code of the lock.
  • the teeth 30 form tooth spaces which have a square shape and are such as to allow the engagement, between said teeth, of a pivot 32 which has a square cross-section and protrudes from both sides of the tang 9, with which it is rigidly coupled.
  • the teeth 30 of each tumbler have alternating identical heights which are nonetheless different from the height of the teeth of the adjacent tumbler.
  • the mutually opposite ends of the upper teeth 30 and of the lower teeth 31 delimit a passage which allows the square pivot 32 to pass between the mutually opposite teeth when the tumblers are actuated by the key 19.
  • the lamina is completed by two notches 33 and 34, which are formed on the edge of the wing 25 that is directed toward the rear wall 4 and at the end of the opening 29 toward which the square pivot 32 moves when the bolt 8 is pushed out of the lock.
  • the tumblers 13 lie between two plates 35, 36 (see also Figure 8): one plate 35 is adjacent to the bottom 2 of the casing and is termed lower plate, while the other plate 36, being meant to make contact with the cover 6, is termed upper plate. Since the plates 35 and 36 are identical, their details are described hereinafter with reference only to the lower plate 35, which is shown more clearly in Figures 5, 6 and 7 and which, as shown in Figures 1 and 3, substantially duplicates the profile of the tumblers 13.
  • the plates 35, 36 in fact comprise a central portion 37 from which an expansion 38 protrudes upwards.
  • the plates 35, 36 are mutually fixed (at a distance which corresponds to the thickness of the tumblers 13 and of the tang 9) by means of screws which are screwed into spacer bushes 39 and 40 which are driven through the slots 16 and 17 of the strips 14 of the tumblers.
  • the mutual fixing of the plates 35 and 36 also locks, between said plates, a square pivot 41 which is arranged adjacent to the wings 25 of the retainer laminae 15 but above the notch 33, at the same distance as the square pivot 32 from the notch 34.
  • the plates 35 and 36 are preset so that they can perform slight horizontal movements in the direction A while changing the code of the lock.
  • slots 42, 43 are formed in the plates 35, 36 (only the slots related to the plate 35 are visible in the drawing); the slots are elongated in the direction A and are adapted to be engaged respectively by pins 44, 45 which protrude inward from the bottom 2 and by identical pins (not shown in the drawing) which protrude from the cover 6.
  • the pins 44 and 45 are fixed to the bottom 2 and to the cover 6 and their height does not exceed the thickness of the plates 35 and 36, so as to avoid interfering with the strips 14 and the laminae 15 of the tumblers.
  • a bracket 46 is fixed between the expansions 38 in order to provide an abutment for a plurality of springs 47, each of which is superimposed on a respective extension 48 of the strips 14.
  • the springs 47 actuate the tumblers 13 downwards in order to move and keep the square pivot 32 in the position in which it is engaged between the upper teeth 30 of the laminae 15 and thus block the movement of the bolt 8.
  • Respective longitudinal slots 49 are formed in the lower plate 35 and in the upper plate 36 in alignment with the square pivot 32 (see Figures 5 and 6); their dimensions are chosen so as to allow the sliding of the square pivot 32, and their length substantially matches the length of the openings 29 of the tumblers.
  • the slots 49 of the lower plate 35 and of the upper plate 36 also have, at the region for engaging between the teeth 21 and 22, a recess 50 which is shaped so as to form, in each plate 35 and 36, a tooth 51 which lies opposite the notch 34 and is adapted to be engaged by the square pivot 32 when the bolt 8 is fully extracted from the casing of the lock.
  • a lever 52 is accommodated in the recess 50 of the lower plate 35 and is pivoted in a rocker-like fashion on a pivot 53 which is rigidly coupled to the bottom 2.
  • the lever 52 is accordingly co-planar to the plate 35, is no thicker than the plate 35, and is L-shaped, with an arm 54 which extends toward the rear wall 4 and an arm 55 which descends toward the lower wall 5.
  • the vertical arm 55 is shaped, at its end, so as to be in contact with the back of the tooth 51, i.e., on the opposite side with respect to the front side on which the square pivot 32 acts.
  • the arm 54 instead has a pawl 56 which is adapted to cooperate with the square pivot 32, as will become apparent hereinafter.
  • An identical lever 52 is also accommodated in the recess of the upper plate 36, adjacent to the cover 6, and is articulated in the cover 6 and accordingly cooperates with the square pivot 32.
  • the second lever 52 is not shown in the drawings.
  • a contoured body 58 is fixed by means of screws 57 to the bottom 2 of the casing and below the tang 9 of the bolt 8 (see Figures 1-4).
  • the body 58 has a central prism-shaped portion 59, in which there is a notch 60 which is open toward the lower wall 5 and the rear wall 4 of the casing.
  • An extension 61 protrudes toward the tang 9 from the central portion 59 and is lateral with respect to the keyhole 20.
  • the portion 59, the extension 61 and the conveniently curved lower edge 62 ( Figure 5) of the plates 35 and 36 surround a region which is wide enough to allow the rotation of the key 19 once it has been inserted in the casing through the keyhole 20 and into which the strips 14 protrude with their lower ends 18.
  • the extension 61 engages a recess 63 of the plates 35 and 36 so as to constitute an abutment for the movement of the plates 35 and 36 toward the front wall 1.
  • a lever 65 is articulated in a rocker-like fashion in the recess 60 by means of a pin 64 and comprises a first arm 66, which protrudes toward the rear wall 4, and a second arm 67, which protrudes toward the lower wall 5.
  • a plate 68 is fixed transversely on the arm 66; when the arm 66 performs upward oscillations, the plate 68 abuts against the lower ends of the wings 25, which of course protrude out of the lower edge of the plates 35 and 36.
  • the oscillating strokes of the arm 66 are limited by a threaded bush 69 which is fixed to the bottom 2 and is used not only as a stroke limiter for the end 70 of the arm 66 but also to screw in screws for fixing the cover 6.
  • a spring 71 is interposed between the arm 66 and the base of the extension 61 and acts so as to retain the lever 65 with the arm 67 in abutment against the internal wall of the recess 60 following the provision of a hole 72 formed in the portion 59.
  • the hole 72 is aligned with a sleeve 73 which protrudes from the portion 59 toward the front wall 1 at right angles to said wall.
  • a stem 74 is slidingly guided in the sleeve 73 and in the hole 72 and protrudes with one end from the sleeve 73 to enter a bush 75 which is rotatably interposed between the sleeve 73 and the front wall 1 and is coaxial to the sleeve 73.
  • the bush 75 has a collar 76 which is rotatably inserted in a hole 77 of the front wall 1 and is aligned with the stem 74.
  • Two substantially mutually opposite radial fins 78, 79 are rigidly coupled to the bush 75, proximate to the collar 76, and are adapted to alternately abut against an internal protrusion 80 of the front wall 1.
  • a sector 81 is rigidly coupled to the bush 75, at the end that is adjacent to the sleeve 73, and forms an axial pusher cam which has an inclined plane 82 which lies in a helical configuration around the stem 74 and is adapted to interfere with a rib 83 of the tang 9.
  • the cam 81 is capable of assuming two angularly offset positions, which are set by the abutment of the wing 78 or 79 against the protrusion 80. In one of these positions, shown in Figure 2, which constitutes the inactive position, the cam 81 lies outside the sliding plane of the rib 83, so as to allow the bolt 8 to slide freely.
  • the bush 75 In the inactive position, the bush 75 is kept in abutment against the protrusion 80 by a pre-loaded spring 84 which is wound around the stem 74 and has an end which acts on the sector 81 and another end which is rigidly coupled to the sleeve 73.
  • An adapted tool 85 for example a so-called hexagonal socket head wrench, is used in order to actuate the rotation of the bush 75 from the inactive position to the position for engaging the rib 83; through a threaded access hole 86, said wrench engages a hexagonal choke 87 of the hole 88 in which the end of the stem 74 engages.
  • the hole 88 can be closed by an Allen screw 89 which can be screwed in by the same tool 85.
  • Tool 85 after passing through the choke 87, can be pushed axially so as to act on the stem 74, so as to actuate the oscillation of the lever 65 until the plate 68 abuts against the wings 25.
  • the laminae 15 in fact can move only in the direction B due to the bushes 12 and 28 which are guided in the slots 26 and 27, and the position of the notches 33 with respect to the pivot 41 is such that the engagement of the pin 41 in the notches 33 requires an additional lifting of the laminae which cannot be obtained with the key but can be achieved only by means of the lever 65.
  • the stem 74 is in fact moved until it abuts against the arm 67 of the lever 65. Then, by pushing further, the lever 65 is caused to oscillate and, together with the arm 66, lifts the tumblers 13 to the level at which the notches 33 and 34 face the pivots 41 and 32. In particular, the notches 34 are at a level that lies above the teeth 51.
  • the new key is inserted and actuated so as to return the bolt 8 inside the casing.
  • the strips 14 are raised according to the new code set by the new key.
  • the tool 85 is removed, so as to allow the separation of the lever 65 from the wings 25 and of the cam 81 from the rib 83 and therefore allow the free sliding of the tang 9 and of the bolt 8.

Landscapes

  • Lock And Its Accessories (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Slot Machines And Peripheral Devices (AREA)
  • Making Paper Articles (AREA)
EP99101722A 1998-03-05 1999-02-10 Serrure à gorges plates et code securitéchangeable Expired - Lifetime EP0943761B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO980132 1998-03-05
IT98BO000132A IT1299883B1 (it) 1998-03-05 1998-03-05 Serratura con nottolini a piastre e cifratura cambiabile.

Publications (2)

Publication Number Publication Date
EP0943761A1 true EP0943761A1 (fr) 1999-09-22
EP0943761B1 EP0943761B1 (fr) 2001-08-16

Family

ID=11342985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99101722A Expired - Lifetime EP0943761B1 (fr) 1998-03-05 1999-02-10 Serrure à gorges plates et code securitéchangeable

Country Status (4)

Country Link
EP (1) EP0943761B1 (fr)
ES (1) ES2159975T3 (fr)
IT (1) IT1299883B1 (fr)
PT (1) PT943761E (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1375790A2 (fr) * 2002-06-19 2004-01-02 MOTTURA SERRATURE DI SICUREZZA S.p.A. Serrure de sécurité pour une porte domestique
WO2004029390A1 (fr) * 2002-09-25 2004-04-08 Malachi Christopher Mckenna Verrou a plusieurs cles
EP1731697A1 (fr) * 2005-06-10 2006-12-13 MOTTURA SERRATURE DI SICUREZZA S.p.A. Serrure de sécurité pour porte de bâtiments ou similaires
WO2007072525A1 (fr) * 2005-12-23 2007-06-28 Iseo Serrature Spa Serrure de securite a double carte pour portes et portails
WO2008090572A1 (fr) * 2007-01-22 2008-07-31 Iseo Serrature S.P.A. Verrou de sûreté à grande souplesse d'utilisation
WO2009136418A1 (fr) * 2008-05-06 2009-11-12 Cisa S.P.A. Verrou antieffraction
WO2010137041A1 (fr) * 2009-05-25 2010-12-02 Cisa S.P.A. Serrure à clés multiples
ITTO20090788A1 (it) * 2009-10-19 2011-04-20 O M R Di Roberto Olivi & C S N C Serratura per porte battenti di edifici.
WO2011045824A1 (fr) * 2009-10-16 2011-04-21 Cisa S.P.A. Serrure à clés multiples
WO2011101877A1 (fr) * 2010-02-18 2011-08-25 Cisa S.P.A. Serrure antieffraction
RU2462571C2 (ru) * 2008-05-06 2012-09-27 Чиза С.П.А. Противовзломный замок

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2756297C9 (ru) * 2020-12-01 2021-10-04 Азат Салаватович Хакимов Способ идентификации ключа замка декодером и сувальдный замок на его основе

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1156674B (de) * 1960-04-25 1963-10-31 Steinbach & Vollmann Schliesseinrichtung mit umstellbaren Zuhaltungen
EP0656454A1 (fr) * 1993-12-02 1995-06-07 Costruzioni Italiane Serrature Affini C.I.S.A. S.p.A. Serrure avec des gâchettes plattes et une combinaison modifiable
DE19546467C1 (de) * 1995-12-13 1997-07-03 Steinbach & Vollmann Sicherheitsschloß

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1156674B (de) * 1960-04-25 1963-10-31 Steinbach & Vollmann Schliesseinrichtung mit umstellbaren Zuhaltungen
EP0656454A1 (fr) * 1993-12-02 1995-06-07 Costruzioni Italiane Serrature Affini C.I.S.A. S.p.A. Serrure avec des gâchettes plattes et une combinaison modifiable
DE19546467C1 (de) * 1995-12-13 1997-07-03 Steinbach & Vollmann Sicherheitsschloß

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1375790A3 (fr) * 2002-06-19 2006-10-18 MOTTURA SERRATURE DI SICUREZZA S.p.A. Serrure de sécurité pour une porte domestique
EP1375790A2 (fr) * 2002-06-19 2004-01-02 MOTTURA SERRATURE DI SICUREZZA S.p.A. Serrure de sécurité pour une porte domestique
WO2004029390A1 (fr) * 2002-09-25 2004-04-08 Malachi Christopher Mckenna Verrou a plusieurs cles
CN1877059B (zh) * 2005-06-10 2011-10-19 莫图拉保险锁股份公司 住宅门,大门和类似构件的安全锁
EP1731697A1 (fr) * 2005-06-10 2006-12-13 MOTTURA SERRATURE DI SICUREZZA S.p.A. Serrure de sécurité pour porte de bâtiments ou similaires
WO2007072525A1 (fr) * 2005-12-23 2007-06-28 Iseo Serrature Spa Serrure de securite a double carte pour portes et portails
WO2008090572A1 (fr) * 2007-01-22 2008-07-31 Iseo Serrature S.P.A. Verrou de sûreté à grande souplesse d'utilisation
CN101627172B (zh) * 2007-01-22 2013-04-24 意秀欧集团 具有高的使用灵活度的安全锁
WO2009136418A1 (fr) * 2008-05-06 2009-11-12 Cisa S.P.A. Verrou antieffraction
CN102016204A (zh) * 2008-05-06 2011-04-13 西莎股份公司 防侵入锁具
RU2462571C2 (ru) * 2008-05-06 2012-09-27 Чиза С.П.А. Противовзломный замок
WO2010137041A1 (fr) * 2009-05-25 2010-12-02 Cisa S.P.A. Serrure à clés multiples
WO2011045824A1 (fr) * 2009-10-16 2011-04-21 Cisa S.P.A. Serrure à clés multiples
ITTO20090788A1 (it) * 2009-10-19 2011-04-20 O M R Di Roberto Olivi & C S N C Serratura per porte battenti di edifici.
WO2011101877A1 (fr) * 2010-02-18 2011-08-25 Cisa S.P.A. Serrure antieffraction
EA027077B1 (ru) * 2010-02-18 2017-06-30 Чиза С.П.А. Устойчивый к взлому замок

Also Published As

Publication number Publication date
ITBO980132A1 (it) 1999-09-05
ITBO980132A0 (it) 1998-03-05
ES2159975T3 (es) 2001-10-16
PT943761E (pt) 2002-01-30
IT1299883B1 (it) 2000-04-04
EP0943761B1 (fr) 2001-08-16

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