EP0562539A1 - Serrures à gorges - Google Patents

Serrures à gorges Download PDF

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Publication number
EP0562539A1
EP0562539A1 EP93104730A EP93104730A EP0562539A1 EP 0562539 A1 EP0562539 A1 EP 0562539A1 EP 93104730 A EP93104730 A EP 93104730A EP 93104730 A EP93104730 A EP 93104730A EP 0562539 A1 EP0562539 A1 EP 0562539A1
Authority
EP
European Patent Office
Prior art keywords
pivot
bolt
slots
tumblers
improvement
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Withdrawn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
EP93104730A
Other languages
German (de)
English (en)
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
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 CISA SpA filed Critical CISA SpA
Publication of EP0562539A1 publication Critical patent/EP0562539A1/fr
Withdrawn legal-status Critical Current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
    • E05B21/00—Locks with lamelliform tumblers which are not set by the insertion of the key and in which the tumblers do not follow the movement of the bolt e.g. Chubb-locks

Definitions

  • the present invention relates to an improvement in multiple-tumbler locks, particularly in double-web locks.
  • the tumblers are constituted by plates which have a particular shape, are arranged mutually side by side in a pack and are provided with openings which are elongated in the bolt sliding direction. Respective sets of oppositely arranged teeth are formed along the longitudinal edges of these openings.
  • the passage formed between the ends of the oppositely arranged teeth and between the teeth of each set has a constant and preset width.
  • the teeth of each set furthermore alternately have the same height, so as to form a double combination which is encoded by varying the height of the teeth of the tumblers.
  • the bolt is blocked by means of a square pivot which is fixed on it and which, at each turn, engages between the teeth of one set; whereas the bolt advances by virtue of the key, which at each turn, for a first part of its rotation, acts on the tumblers and aligns the pivot and the passage formed between the oppositely arranged ends of the teeth adjacent to the pivot, so as to allow the pivot to pass through this passage when the key moves the bolt during a second part of its rotation. Finally, during the final part of the rotation of the key the tumblers, under the thrust of the spring, return to the position in which the pivot engages between the teeth to block the bolt.
  • the bolt is guided not only in the opening of the front wall of the casing but also by a pivot which slideably engages in slots which are elongated in the bolt sliding direction and are formed in the tang of said bolt.
  • the aim of the present invention is to provide an improvement which allows to obviate the drawbacks of conventional locks.
  • the numeral 1 designates the front wall of the lock casing, which furthermore comprises a bottom 2 which is surrounded by a peripheral wall composed of an upper wall 3, a rear wall 4 and a lower wall 5.
  • the numeral 6 designates the casing closure cover.
  • a rectangular opening is provided in the front wall 1, and the bolt 7 is driven through it; a tang 8 is connected to the bolt.
  • the tang 8 is constituted by a plate which is thinner than the bolt 7 and is arranged in the central plane of said bolt; the plate has, along its lower edge, a plurality of teeth 9 which form a rack.
  • Three tumblers 10, 11, 12 are arranged on each side of the tang and are constituted by mutually adjacent shaped plates.
  • the plates have two slots 13 and 14 which are elongated at right angles to the bolt sliding direction A and are engaged by bushes 15, 16 which are fixed to the bottom 2 and keep them guided.
  • An opening 17 is formed in each plate and is elongated in the direction A; two sets of oppositely arranged teeth 18, 19 protrude from the longitudinal edges of said opening; the sets have a different length for each tumbler, and the teeth of each set are alternately identical.
  • a pivot 20 engages between the teeth 18 of the upper set; the pivot has a substantially square cross-section and protrudes from both sides of the tang 8 to which it is rigidly coupled.
  • the thickness of the pivot 20 is equal to the tooth space of the sets 18 and 19 and to the width of the passage formed between the ends of the opposite pivots, so as to allow the pivot 20 to pass through said passage when the tumblers are actuated by the key.
  • the engagement of the pivot 20 in the tooth spaces is provided by means of springs 21 which are inserted in rods 22, 23 and 24 which extend from the tumblers 10, 11 and 12 at right angles to the direction A and are guided in a wing 25 which is rigidly coupled to the bottom 2.
  • the springs 21 act between the wing 25 and respective shoulders formed at the base of the rods, so as to push the tumblers astride the pivot 20, which engages the tooth spaces of the set of teeth 18.
  • the opposite ends of the pivot 20 protrude from the external tumblers which are adjacent to the bottom 2 and to the cover 6 to engage in slots 26 and 27 of the bottom 2 and respectively of the cover 6.
  • the slots 26 and 27 are elongated in the direction A and are not shorter than the slots 17 of the tumblers.
  • the portions of the square pivot 20 which engage the slots 26 and 27 are cylindrical and have a diameter which is less than the thickness of the pivot, so as to form opposite shoulders which, as shown in figure 3, abut on the internal edges of the slots 26 and 27, thereby to prevent transverse movements of the tang and keep the bolt guided longitudinally.
  • the prerogative of the invention is to be found in the fact that the tang 8 no longer has guiding slots, as in the prior art, and can thus be produced with a smaller width.
  • the materials employed, as well as the contingent shapes and dimensions may be any according to the requirements.

Landscapes

  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Supports Or Holders For Household Use (AREA)
EP93104730A 1992-03-24 1993-03-23 Serrures à gorges Withdrawn EP0562539A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO920058 1992-02-20
IT92BO000058U IT227825Y1 (it) 1992-03-24 1992-03-24 Perfezionamento nelle serrature a piu' nottolini

Publications (1)

Publication Number Publication Date
EP0562539A1 true EP0562539A1 (fr) 1993-09-29

Family

ID=11338012

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93104730A Withdrawn EP0562539A1 (fr) 1992-03-24 1993-03-23 Serrures à gorges

Country Status (2)

Country Link
EP (1) EP0562539A1 (fr)
IT (1) IT227825Y1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0780532A1 (fr) * 1995-12-20 1997-06-25 C.I.S.A. Costruzioni Italiane Serrature Affini S.p.A. Serrure à paillettes
EP0903455A2 (fr) * 1997-09-18 1999-03-24 Costruzioni Italiane Serrature Affini C.I.S.A. S.p.A. Dispositif anti-effraction pour une serrure à gorges

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE347566C (de) * 1922-01-21 Oskar Niederdrenk Schloss mit einer vom Schluessel mitgedrehten Schaltscheibe
DE520683C (de) * 1929-03-09 1931-03-13 Wilhelm Marquardt Sicherheitsschloss mit einer in der Ebene des Riegelschaftes liegenden Drehscheibe
DE526442C (de) * 1931-06-06 Lydia Baumgarten Geb Loewenste Schloss mit zweiteiligem Schluessel
GB620947A (en) * 1947-02-03 1949-04-01 Marcel Goldstein Improvements in tumbler locks
US3762192A (en) * 1971-10-27 1973-10-02 Italiane Serrature Affini Sa C Antilock-picking device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE347566C (de) * 1922-01-21 Oskar Niederdrenk Schloss mit einer vom Schluessel mitgedrehten Schaltscheibe
DE526442C (de) * 1931-06-06 Lydia Baumgarten Geb Loewenste Schloss mit zweiteiligem Schluessel
DE520683C (de) * 1929-03-09 1931-03-13 Wilhelm Marquardt Sicherheitsschloss mit einer in der Ebene des Riegelschaftes liegenden Drehscheibe
GB620947A (en) * 1947-02-03 1949-04-01 Marcel Goldstein Improvements in tumbler locks
US3762192A (en) * 1971-10-27 1973-10-02 Italiane Serrature Affini Sa C Antilock-picking device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0780532A1 (fr) * 1995-12-20 1997-06-25 C.I.S.A. Costruzioni Italiane Serrature Affini S.p.A. Serrure à paillettes
EP0903455A2 (fr) * 1997-09-18 1999-03-24 Costruzioni Italiane Serrature Affini C.I.S.A. S.p.A. Dispositif anti-effraction pour une serrure à gorges
EP0903455A3 (fr) * 1997-09-18 1999-06-30 Costruzioni Italiane Serrature Affini C.I.S.A. S.p.A. Dispositif anti-effraction pour une serrure à gorges

Also Published As

Publication number Publication date
IT227825Y1 (it) 1998-01-21
ITBO920058V0 (it) 1992-03-24
ITBO920058U1 (it) 1993-09-24

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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