EP0902139A1 - Zylinderschloss und Flachschlüssel mit einer Aufnahmen für ein bewegliches Teil - Google Patents

Zylinderschloss und Flachschlüssel mit einer Aufnahmen für ein bewegliches Teil Download PDF

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Publication number
EP0902139A1
EP0902139A1 EP98115985A EP98115985A EP0902139A1 EP 0902139 A1 EP0902139 A1 EP 0902139A1 EP 98115985 A EP98115985 A EP 98115985A EP 98115985 A EP98115985 A EP 98115985A EP 0902139 A1 EP0902139 A1 EP 0902139A1
Authority
EP
European Patent Office
Prior art keywords
key
plug
tumbler pin
plate
auxiliary tumbler
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Withdrawn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
EP98115985A
Other languages
English (en)
French (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
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 EP0902139A1 publication Critical patent/EP0902139A1/de
Withdrawn legal-status Critical Current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
    • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
    • E05B35/003—Locks for use with special keys or a plurality of keys ; keys therefor for keys with movable bits
    • 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
    • E05B27/0042—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with additional key identifying function, e.g. with use of additional key operated rotor-blocking elements, not of split pin tumbler type

Definitions

  • the present invention relates to a cylinder lock with flat key provided with a seat for a movable element.
  • Locks according to the above patents offer more coding possibilities but entail a greater constructive complexity of the key.
  • difficulties in producing the seat for the movable element in the key in order to allow perfect operation they require high precision in providing the dimensions of the stroke limits for the movable element.
  • the aim of the present invention is to provide a cylinder lock, with a corresponding key, overcoming the above drawbacks of the prior art.
  • An object of the present invention is to provide a cylinder lock with flat key provided with a movable element which allows a significant increase in the number of coding possibilities with respect to conventional locks of the same kind.
  • a cylinder lock with flat key insertable in a plug which is supported so that it can rotate within a cylinder and can be locked by means of tumbler pin assemblies which, by inserting the key in the plug, are actuated into the position for rotating the plug, said key having at least one movable element which can move within a respective seat which lies within the plane of the key and, in the key insertion position, cooperates with auxiliary tumbler pin assemblies which are adapted to position said movable element so that said plug can rotate inside said cylinder; characterized in that in said key, at said seat, at least one hole is provided through which a respective additional auxiliary tumbler pin assembly can engage a respective notch of said movable element in order to assume a position which allows the rotation of said plug.
  • the reference numeral 1 generally designates the lock.
  • Said lock is composed, in a conventional manner, of a cylinder 2 in which a cylindrical cavity 3 is formed which accommodates the plug 4 so that it can rotate about the axis A.
  • the plug 4 is crossed by an axial slot 5 which lies on a diametrical plane D and constitutes the channel for the insertion of the profiled shank 6 of a key 7 for the actuation of the lock.
  • the slot 5 has a substantially rectangular cross-section, with two larger faces 8 and 9 which are flat and parallel with respect to the plane D, are wider than the radius of the plug 4 and have slots and ridges which are complementary to the cross-section of the shank 6 of the key 7.
  • the slot 5 is open longitudinally on one side at the peripheral region of the plug 4 and has a face 10 which lies opposite to said open side and is perpendicular to the plane D. Said face is referenced hereinafter as bottom face for the sake of convenience in description.
  • Two series of holes 11 and, respectively, 12 are formed in the plug 4 and in the cylinder 2 and are arranged along radial planes.
  • the holes 11, 12 have the same diameter and are mutually equidistant, so that they are adapted to mutually align in an angular position of the plug 4 with respect to the cylinder 2.
  • the holes 11 formed in the plug 4 are through holes and lead into the bottom face 10 of the slot 5, while the holes 12 are dead holes which are open toward the plug 4.
  • Each tumbler pin assembly is generally designated by the reference numeral 12a.
  • the tumbler pin assemblies 12a lock the rotation of the plug 4, while when the key is inserted they are actuated into a radial position which allows to turn the plug 4.
  • Each tumbler pin assembly 12a is composed of an inner pin 13, which is guided in the respective hole 11 of the plug 4, and of an outer pin 14, which is guided in the respective hole 12 of the cylinder 2.
  • a spring 15 is interposed between the outer pin 14 and the bottom of the respective hole 11 and actuates the outer pin 14 toward the axis A.
  • the inner pin 13 has a narrower portion which forms a shoulder 16 and divides said inner pin into a portion having a greater diameter, which is externally rounded with a radius equal to the radius of the plug 4, and into a portion having a reduced diameter, ending with a frustum-shaped point 17.
  • the spring 15 pushes the outer pin 14 and the inner pin 13 toward the axis A.
  • the stop position of the pins is established by an annular abutment 18, against which the shoulder 16 of the inner pin 13 abuts. In this abutment position, the point 17 protrudes into the slot 5 through holes of the bottom 10 and the outer pin 14 intersects the connecting plane between the plug 4 and the cylinder 2, locking the rotation of the plug 4.
  • An additional tumbler pin assembly is provided on the plane B of the last tumbler pin assembly, which is located furthest from the key insertion side and is designated by the reference numeral 19 for the sake of clarity.
  • Said additional tumbler pin assembly has an axis C at right angles to the plane D and is generally designated by the reference numeral 20.
  • the additional tumbler pin assembly 20 is composed of an inner pin 21, of an outer pin 22, and of a pusher spring 23.
  • the holes 24, 25 for accommodating the inner pin 21 and the outer pin 22 are perpendicular to the holes 11 and, respectively, 12 and their axes pass through the rotation axis A of the plug 4.
  • a dead hole 26 is formed in the cylinder 2 and is diametrically aligned with the last tumbler pin assembly 19.
  • An outer pin 27 is slidingly accommodated in the dead hole and is actuated by a spring 28 toward the axis A, so that when the key is not inserted, said outer pin can engage a hole 24 which is formed in the plug 4 and intersects the open side of the slot 5.
  • the spring 28 has a lower elastic constant than the spring 15 of the tumbler pin assembly 19.
  • a seat 31 is formed in the end of the shank 6 of the key, passes through the key from one longitudinal edge to the other and lies within the thickness of the key at right angles to the axis A.
  • the seat 31 has a rectangular cross-section and when the key is inserted its opposite ends are aligned with the hole 26 of the outer pin 27 on one side and, respectively, with the hole 11 of the tumbler pin assembly 19 on the opposite side of the slot 8.
  • the movable element 30 can slide within the seat 31 and is constituted by a plate 32 whose opposite ends are adapted to cooperate with the inner pin 13 of the tumbler pin assembly 19 and with the outer pin 27.
  • the length of the plate 32 is equal to the width of the shank 6, so that in a given transverse position said plate can be accommodated in the seat 31 without protruding from the longitudinal edges of the shank 6.
  • a recess 33 is formed along one edge of the plate 32, and a pin 34 driven into the shank 6 passes through said recess.
  • the opposite ends of the plate 32 have chamfers 35 and 36 at 45° and the stroke of the plate allowed by the recess 33 is such that it cannot protrude from the seat 31 by more than the extension of the chamfers at right angles to the axis A. In this manner, when the key 7 is inserted in the slot 5 the chamfers, by engaging the insertion edge of the slot, force the plate 32 to retract into the seat 31, allowing to insert the key 7 in the slot 5.
  • the plate 32 is provided with a circular notch 37 in which the inner pin 21 of the tumbler pin assembly 20 can engage through a hole 38 of the key formed at the seat 31.
  • the outer pins 14 and 22 of the tumbler pin assemblies 12a, 19, 20 and the outer pin 27 protrude across the region that connects the plug 4 and the cylinder 2, preventing the rotation of the plug and the actuation of the lock.
  • the key 7 is inserted in the slot 5 until the plate 32 lies between the inner pin 13 of the tumbler pin assembly 19 and the outer pin 27. Since the spring 15 is stronger than the spring 28, the tumbler pin assembly 19, under the thrust of the spring 15, moves the plate 32 into a position which is determined by the abutment of the pin 34 against the edge of the recess 33 or of the outer pin 27 against the bottom of the hole 26. In this position, the outer pin 27 disengages from the hole 29, while the inner pin 13 of the tumbler pin assembly 19 is actuated into a position in which the plane of contact with the respective outer pin 14 lies on the plane that connects the plug 4 and the cylinder 2.
  • the movement of the plate 32 aligns the notch 37 with the hole 38 of the key, allowing the inner pin 21 of the tumbler pin assembly 20 to be actuated into a position in which the plane of contact between the outer pin 22 and the inner pin 21 lies on the plane that connects the plug 4 and the cylinder 2.

Landscapes

  • Lock And Its Accessories (AREA)
  • Supports Or Holders For Household Use (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
EP98115985A 1997-09-09 1998-08-25 Zylinderschloss und Flachschlüssel mit einer Aufnahmen für ein bewegliches Teil Withdrawn EP0902139A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO970546 1997-09-09
IT97BO000546A IT1294198B1 (it) 1997-09-09 1997-09-09 Serratura a cilindro con chiave piatta presentante un alloggiamento per un elemento traslabile.

Publications (1)

Publication Number Publication Date
EP0902139A1 true EP0902139A1 (de) 1999-03-17

Family

ID=11342520

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98115985A Withdrawn EP0902139A1 (de) 1997-09-09 1998-08-25 Zylinderschloss und Flachschlüssel mit einer Aufnahmen für ein bewegliches Teil

Country Status (2)

Country Link
EP (1) EP0902139A1 (de)
IT (1) IT1294198B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1728944A3 (de) * 2005-06-01 2007-03-21 CISA S.p.A. Schliesszylinder und zugehöriger Schlüssel

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0359885A1 (de) * 1987-08-05 1990-03-28 Vachette Schlüssel mit Schiebeelement, Sicherheitszylinder, und Schloss mit solchen Zylindern
EP0472495A1 (de) * 1990-08-22 1992-02-26 Ernst Keller Schlüssel und Drehschliesszylinder für ein Sicherheitsschloss
CH680935A5 (de) * 1990-01-17 1992-12-15 Ernst Keller
EP0663499A1 (de) * 1993-12-21 1995-07-19 Laperche Schlüssel für ein Zylinderschloss und ein Zylinderschloss für einen solchen Schlüssel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0359885A1 (de) * 1987-08-05 1990-03-28 Vachette Schlüssel mit Schiebeelement, Sicherheitszylinder, und Schloss mit solchen Zylindern
CH680935A5 (de) * 1990-01-17 1992-12-15 Ernst Keller
EP0472495A1 (de) * 1990-08-22 1992-02-26 Ernst Keller Schlüssel und Drehschliesszylinder für ein Sicherheitsschloss
EP0663499A1 (de) * 1993-12-21 1995-07-19 Laperche Schlüssel für ein Zylinderschloss und ein Zylinderschloss für einen solchen Schlüssel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1728944A3 (de) * 2005-06-01 2007-03-21 CISA S.p.A. Schliesszylinder und zugehöriger Schlüssel

Also Published As

Publication number Publication date
IT1294198B1 (it) 1999-03-22
ITBO970546A0 (it) 1997-09-09
ITBO970546A1 (it) 1999-03-09

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