EP0431550A1 - Key - Google Patents

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Publication number
EP0431550A1
EP0431550A1 EP90123201A EP90123201A EP0431550A1 EP 0431550 A1 EP0431550 A1 EP 0431550A1 EP 90123201 A EP90123201 A EP 90123201A EP 90123201 A EP90123201 A EP 90123201A EP 0431550 A1 EP0431550 A1 EP 0431550A1
Authority
EP
European Patent Office
Prior art keywords
key
bore
key blade
control element
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.)
Withdrawn
Application number
EP90123201A
Other languages
German (de)
English (en)
French (fr)
Inventor
Herbert Philipp Häuser
Peter Kremer
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.)
Dom Sicherheitstechnik GmbH and Co KG
Original Assignee
Dom Sicherheitstechnik GmbH and Co KG
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 Dom Sicherheitstechnik GmbH and Co KG filed Critical Dom Sicherheitstechnik GmbH and Co KG
Publication of EP0431550A1 publication Critical patent/EP0431550A1/en
Withdrawn legal-status Critical Current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
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0078—Asymmetrical tumbler pins, e.g. with a key operating on a radial protrusion of a tumbler pin
    • 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

Definitions

  • This invention is concerned with a key for use with a locking device.
  • a locking device comprising a lock of the cylinder type wherein the cylinder has a housing in which a cylinder plug is rotatably accommodated, together with a plurality of tumblers, the plug having a profiled keyway into which said tumblers extend in the rest condition of the cylinder, wherein an additional tumbler is provided which is mounted for sliding movement in a bore the longitudinal axis of which is parallel to but offset from the longitudinal central plane of the keyway, and further wherein an abutment is also provided in the keyway in the region of the additional tumbler but spaced therefrom, the locking device being adapted for use with a key having a profiled blade corresponding to the keyway and having mounted in the blade, for sliding transverse movement therein, a control element which is urged by engagement of one end portion thereof with the abutment into a condition in which an opposite end portion thereof projects outwardly from the key blade, said projecting end portion serving to operate the additional tumbler.
  • the additional tumbler (in fact in this case there are two) is movable in its bore through a distance which cannot exceed the heightwise dimension of the control element of the key and indeed in the particular case is movable through a stroke which is substantially smaller than such dimension.
  • some form of camming surface or run-up slope has to be provided on the control member and clearly the heightwise distance over which such run-up slope extends cannot exceed the overall height of the control element. What is more, the run-up slope may not exceed a certain angle of inclination if jamming of the key during insertion is to be avoided.
  • a key comprising a longitudinal groove along one wide face of the key blade.
  • the control element has to be formed as large as possible while the additional tumbler(s) have a diameter as small as possible so as to be accommodated within the lengthwise surface of the control element provided adjacent the run-up slope.
  • To form the additional tumbler thin is disadvantageous in that it affords a weak locking function.
  • the present invention provides a key for use with a locking device comprising a profiled key blade provided with a row of V-cuts on one narrow edge and having a control element accommodated for transverse movement in a bore extending transversely of the key blade and opening into the opposite wide faces thereof, such that when the element is urged, by engagement of one portion thereof, in one direction so that said one end portion lies flush with one of the wide faces of the key blade, an opposite portion thereof projects outwardly beyond the other wide face of the key blade, characterised in that the bore has a portion of enlarged diameter and the control element is in the form of a pin disposed in said bore and having a collar freely movable in the enlarged diameter portion thereof between an end face forming the bottom of said portion and a retaining ring arranged at the open end of the bore.
  • Locking devices for use with the key according to the present invention are described and claimed in our co-pending European Patent Application No. 86 303931.9 (Published Application No. 202949) of even date herewith.
  • the bore has a portion of enlarged diameter and the control element is in the form of a pin disposed in said bore and having a collar freely movable in the enlarged diameter portion thereof between an end face forming the bottom of said portion and a retaining ring arranged at the open end of the bore.
  • a significant advantage of the key of the present invention resides in that, because the control element is in the form of a relatively small pin, the handling of the key by the user becomes more commodious and in particular the key does not exhibit projections of the type of the key of the earlier case, which projections are likely to snag in the users pocket or with the users apparel when being carried or handled by the user.
  • the lock cylinder has a profiled lock cylinder housing 1, in which a cylinder plug 3 is rotatably mounted in a longitudinal bore 2.
  • the plug 3 is non-rotatably secured to a thrower ring 5 having a thrower 4.
  • lock cylinder housing 1 and the cylinder plug 3 are provided, in the longitudinal central plane of the lock cylinder, bores 6,7 which lie in alignment with one another and which receive tumblers 8 comprising plug pins 8′ and housing pins (or drivers) 8 ⁇ .
  • the housing pins are urged outwardly towards the pins 8′ by compression springs 9.
  • a keyway 10 of profiled cross-section extends in the plug 3 in the axial longitudinal direction thereof.
  • the keyway 10 is adapted to the cross-section of the key blade 11 of a flat key 12.
  • the one narrow edge of the key blade 11 is provided with a row of V-cuts 13 of different depths, which cooperate with the tumbler pins 8 and operate them, when the key is inserted, so tha.
  • the joint line between the plug pins 8′ and housing pins 8 ⁇ lies at the level of the plug rotation line F (see Fig. 6).
  • the key blade 11 has profile longitudinal grooves on both wide sides, corresponding to the transverse profiling of the keyway.
  • a counter-sunk recess 15 extends from the bottom of a central one of the profiled longitudinal grooves 14, which is wider than the other grooves, and extends almost up to the opposite wide side of the key.
  • At the bottom 16 of the countersink is a central bore 17 through which the control element 18 in the form of a pin extends.
  • a retaining ring 19 is disposed at the open end of the recess 15 and serves to guide the control pin 18.
  • the control pin 18 is restrained in the transverse direction by a central collar 20, which fixedly projects from the control element and is freely movable between the annular area of countersink bottom 16 and the retaining ring 19. The latter is pressed into the key blade and thus ensures the non-releasable mounting of the control element 18.
  • the length of the control element 18 corresponds to the transverse dimension, i.e. thickness of the key blade 11 (see especially Fig.
  • an additional tumbler 21 which is movable in a bore 22 opening into one side of the keyway 10 and extending parallel to the key insertion plane.
  • the additional tumbler 21 comprises a stem 23 and head 24, the latter being axially offset from the stem 23.
  • the centre point M of the stem 23 is thus at a greater distance from the keyway than the centre point M 1 of th head 24.
  • the additional tumbler 21 is secured against rotation by guiding the stem 23 in a bore section 22′, which is axially offset from a bore section 22 ⁇ of larger cross-section in which the head 24 is movable.
  • the head is flatted on the side facing che keyway 10 so as to lie flush with the side wall 10′ of the keyway.
  • a run-up slope 26 Adjacent the flatted surface is formed a run-up slope 26 which extends up to a side wall portion 25 of the head.
  • the run-up slope 26 increases in the direction of key insertion.
  • a projection or spigot 34 projects from the head 24 in opposed relationship with the stem 23 and cooperates with a stroke-limiting abutment in the form of a pin 35 in-set in the outer surface of the cylinder plug 3.
  • the cylinder plug 3 has a groove 36 intersecting the bore 22 and running in the longitudinal direction of the cylinder plug 3, the depth of the groove corresponding approximately to the diameter of the stroke-limiting pin 35. Lateral recesses 37 in the groove 36 ensure the correct location of the stroke-limiting pin 35.
  • the stem 23 of the additional tumbler 21 cooperates with a housing tumbler 29, which is guided in a bore 28 of the lock cylinder housing 1.
  • the tumbler 29 is secured against rotation as a consequence of its being offset from the longitudinal central plane of the lock cylinder.
  • This tumbler 29 is also acted upon by a compression spring (not shown) so that, when the key is withdrawn, the position as shown in Fig. 3 pertains, wherein the tumbler 29 projects with its end facing the cylinder plug into the bore section 22′, brings the tumbler 21 into abutment with the stroke-limiting pin 35, and provided additional security against rotation.
  • a slot 30 which lies transversely of the keyway and into which an abutment in the form of an insert 31 is fixedly inserted.
  • the end of this insert 31 projects into the keyway beyond the corresponding side wall 10 ⁇ of the keyway.
  • the edge projecting into the keyway 10 provides a surface 32 for actuating the control element 18, the side of said surface 32 facing the keyway insertion direction forming a roof-shaped slope 33. This surface lies at the level of the profiled longitudinal groove 14 of the key and projects thereinto when the key is inserted.
  • the distance x between the side wall 25 of the head 24 and the opposite surface 32 of the insert 31 corresponds to the amount y of the dimension extending transversely of the key 12.
  • the entry area of the keyway 10 is provided with funnel-shaped tapering guide surfaces 34 which guide the control element 18, if projecting, into the keyway.
  • the mode of operation is as follows: When the flat key 12 is inserted into the keyway 10, its V-cuts 13 operate the tumbler pins 8.
  • the control element 18 is guided through the keyway (see chain dotted illustration in Fig. 5).
  • the control element 18 Upon engagement of one end portion of the pin 18 with the roof-shaped slope 33 of the insert 31, the control element 18 is shifted transversely in the direction of the run-up slope 26 of the additional tumbler 21.
  • the recess 27 disposed in front of slope 33 receives the opposite end portion of the pin 18 during this transverse motion, so that the control element 18 reaches the chain-dotted position in accordance with Fig. 4, but at this stage no shifting of the additional tumbler 21 has taken place. This position corresponds to the end position of the transverse displacement of the control element 18.
  • the diameter of the projecting end portion of the pin 18 is substantially less than the lengthwise dimension of the run-up 26 formed on the additional tumbler 21 (see e.g. Fig. 7), while the amount by which said projecting end portion projects beyond the wide face of the key 12 is not greater than the transverse dimension of said run-up slope 26 (see e.g. Fig. 6).
  • the key 12 is made from a key blank exhibiting the longitudinal grooves and the bore with the pin 18 held captive therein as aforesaid.

Landscapes

  • Lock And Its Accessories (AREA)
  • Transmitters (AREA)
EP90123201A 1985-05-24 1986-05-23 Key Withdrawn EP0431550A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3518743 1985-05-24
DE19853518743 DE3518743A1 (de) 1985-05-24 1985-05-24 Aus schliesszylinder und flachschluessel bestehende schliesseinrichtung

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP86303931.9 Division 1986-05-23

Publications (1)

Publication Number Publication Date
EP0431550A1 true EP0431550A1 (en) 1991-06-12

Family

ID=6271573

Family Applications (2)

Application Number Title Priority Date Filing Date
EP90123201A Withdrawn EP0431550A1 (en) 1985-05-24 1986-05-23 Key
EP86303931A Expired - Lifetime EP0202949B1 (en) 1985-05-24 1986-05-23 Locking devices and keys for use therewith

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP86303931A Expired - Lifetime EP0202949B1 (en) 1985-05-24 1986-05-23 Locking devices and keys for use therewith

Country Status (4)

Country Link
EP (2) EP0431550A1 (enrdf_load_stackoverflow)
AT (1) ATE64980T1 (enrdf_load_stackoverflow)
DE (2) DE3518743A1 (enrdf_load_stackoverflow)
ES (1) ES294528Y (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0605932A3 (en) * 1993-01-08 1995-02-15 Mul T Lock Ltd Locking device.
US5533369A (en) * 1993-05-05 1996-07-09 Talleres De Escoriaza, S.A. (Tesa) Safety lock and flat key for such a lock
US6125674A (en) * 1996-04-18 2000-10-03 Talleres De Escoriaza, S.A. System consisting of a noncopyable key and a closed cylinder for same
US6257033B1 (en) * 1999-03-08 2001-07-10 Moshe Dolev Cylinder lock with rotatable pins
EP1327735A3 (en) * 2002-01-11 2003-07-23 MG Serrature S.p.A. High-security closing device and unlocking prodecure
EP1482109A3 (de) * 2003-05-28 2005-12-28 DOM Sicherheitstechnik GmbH & Co. KG Schliesszylinder mit Schlüssel
US7207200B2 (en) 2003-07-09 2007-04-24 Kaba Ilco Corp. Key with compound actuator ramps in recessed longitudinal channel
WO2008135968A1 (en) 2007-05-02 2008-11-13 Ramot At Tel Aviv University Ltd. Methods and apparatus for reduction of aerodynamic drag
WO2015001559A1 (en) * 2013-07-03 2015-01-08 Smarter Place Technologies Ltd. Key blank and lock
WO2015051114A1 (en) * 2013-10-03 2015-04-09 Medeco Security Locks, Inc. Cylinder lock with internal slider and key therefore
IT201700122954A1 (it) * 2017-10-30 2019-04-30 Fabio Visentin Cilindro radiale a doppia molla
US11280111B2 (en) 2019-10-03 2022-03-22 Assa Abloy High Security Group Inc. Operating a lock cylinder with multiple, supplemental locking elements

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3518743A1 (de) 1985-05-24 1986-11-27 DOM-Sicherheitstechnik GmbH & Co KG, 5040 Brühl Aus schliesszylinder und flachschluessel bestehende schliesseinrichtung
DE3603687A1 (de) * 1986-02-06 1987-08-13 Dom Sicherheitstechnik Aus schliesszylinder und zugehoerigem flachschluessel bestehende schliesseinrichtung
GB2230555B (en) * 1989-03-31 1993-08-11 Folger Adam Co Cylinder locks
US5079936A (en) * 1989-03-31 1992-01-14 Folger Adam Company High security cylinder lock
CH679507A5 (enrdf_load_stackoverflow) * 1989-12-15 1992-02-28 Bauer Kaba Ag
DE4000179A1 (de) * 1990-01-05 1991-07-11 Bks Gmbh Schluessel fuer schliesszylinder, insbesondere von schliessanlagen
CH686969A5 (de) * 1993-03-30 1996-08-15 Ernst Keller Schluessel und Drehschliesszylinder fuer ein Sicherheitsschloss.
AT1147U1 (de) * 1996-01-10 1996-11-25 Grundmann Schliesstechnik Schliesszylinder und bzw. oder flachschlüssel
DE19607581C2 (de) * 1996-02-29 2000-03-23 Schliesanlagen Gmbh Pfaffenhai Schließvorrichtung
DE10058590C1 (de) * 2000-11-25 2002-07-25 Dom Sicherheitstechnik Schlüssel und zugehöriger Schließzylinder
DE102006000122A1 (de) 2006-03-17 2007-09-20 Aug. Winkhaus Gmbh & Co. Kg Schlüssel für einen Schließzylinder und Schließzylinder für einen solchen Schlüssel
ITBO20120662A1 (it) 2012-12-10 2014-06-11 Filippo Bastianini Serratura con ingegno a dischi riprogrammabile meccanicamente e chiave per la stessa
ITBO20130122A1 (it) 2013-03-22 2014-09-23 Filippo Bastianini Serratura di sicurezza e chiave per la stessa
DE102014005431B4 (de) * 2014-04-08 2016-10-27 Assa Abloy Sicherheitstechnik Gmbh Schloss-Schlüssel-System
DE102016102288A1 (de) 2016-02-10 2017-08-10 Dom Sicherheitstechnik Gmbh & Co. Kg Schlüssel für einen Schließzylinder, Schließzylinder und Schließvorrichtung
FI130769B1 (en) * 2023-03-02 2024-03-07 Abloy Oy Cylinder lock and a key combination
DE102024103506A1 (de) * 2024-02-08 2025-08-14 Assa Abloy Sicherheitstechnik Gmbh Schließvorrichtung umfassend einen Schließzylinder mit Rippenabtastung des Schlüssels mittels einer Wippe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492872A1 (fr) * 1980-08-13 1982-04-30 Vachette Sa Cle a poussoir incorpore et barillet de surete utilisant ladite cle
DE3424307A1 (de) 1983-06-30 1985-01-03 Gebr. Grundmann GmbH, Herzogenburg, Niederösterreich Schluessel-schlosskombination auf zylinderschlossbasis
EP0202949A2 (en) 1985-05-24 1986-11-26 DOM-Sicherheitstechnik GmbH & Co. KG Locking devices and keys for use therewith

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947402A1 (de) * 1979-11-24 1981-05-27 DOM-Sicherheitstechnik GmbH & Co KG, 5040 Brühl Flachschluessel fuer zylinderschloss

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492872A1 (fr) * 1980-08-13 1982-04-30 Vachette Sa Cle a poussoir incorpore et barillet de surete utilisant ladite cle
DE3424307A1 (de) 1983-06-30 1985-01-03 Gebr. Grundmann GmbH, Herzogenburg, Niederösterreich Schluessel-schlosskombination auf zylinderschlossbasis
EP0202949A2 (en) 1985-05-24 1986-11-26 DOM-Sicherheitstechnik GmbH & Co. KG Locking devices and keys for use therewith

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0605932A3 (en) * 1993-01-08 1995-02-15 Mul T Lock Ltd Locking device.
AP447A (en) * 1993-01-08 1996-01-17 Mul T Lock Ltd Locking apparatus.
US5520035A (en) * 1993-01-08 1996-05-28 Mul-T-Lock Ltd. Locking apparatus
TR28890A (tr) * 1993-01-08 1997-07-17 Mul T Lock Limited Kilitleme cihazi ile ve daha belirli olarak islenmemis anahtarlar, anahtarlar ve bunlar vasitasiyla calistirilan kilitler.
US5784910A (en) * 1993-01-08 1998-07-28 Mul-T-Lock Ltd. Locking apparatus
US5839308A (en) * 1993-01-08 1998-11-24 Mul-T-Lock Ltd. Locking apparatus
US5533369A (en) * 1993-05-05 1996-07-09 Talleres De Escoriaza, S.A. (Tesa) Safety lock and flat key for such a lock
US6125674A (en) * 1996-04-18 2000-10-03 Talleres De Escoriaza, S.A. System consisting of a noncopyable key and a closed cylinder for same
US6257033B1 (en) * 1999-03-08 2001-07-10 Moshe Dolev Cylinder lock with rotatable pins
EP1327735A3 (en) * 2002-01-11 2003-07-23 MG Serrature S.p.A. High-security closing device and unlocking prodecure
EP1482109A3 (de) * 2003-05-28 2005-12-28 DOM Sicherheitstechnik GmbH & Co. KG Schliesszylinder mit Schlüssel
US7207200B2 (en) 2003-07-09 2007-04-24 Kaba Ilco Corp. Key with compound actuator ramps in recessed longitudinal channel
WO2008135968A1 (en) 2007-05-02 2008-11-13 Ramot At Tel Aviv University Ltd. Methods and apparatus for reduction of aerodynamic drag
WO2015001559A1 (en) * 2013-07-03 2015-01-08 Smarter Place Technologies Ltd. Key blank and lock
WO2015051114A1 (en) * 2013-10-03 2015-04-09 Medeco Security Locks, Inc. Cylinder lock with internal slider and key therefore
US20150096342A1 (en) * 2013-10-03 2015-04-09 Medeco Security Locks, Inc. Cylinder lock with internal slider and key therefore
US9359793B2 (en) 2013-10-03 2016-06-07 Medeco Security Locks, Inc. Cylinder lock with internal slider and key therefore
IT201700122954A1 (it) * 2017-10-30 2019-04-30 Fabio Visentin Cilindro radiale a doppia molla
US11280111B2 (en) 2019-10-03 2022-03-22 Assa Abloy High Security Group Inc. Operating a lock cylinder with multiple, supplemental locking elements
US11624206B2 (en) 2019-10-03 2023-04-11 Assa Abloy High Security Group Inc. Lock cylinder and key with multiple, supplemental locking elements
US12196000B2 (en) 2019-10-03 2025-01-14 Assa Abloy High Security Group Inc. Cylinder lock with multiple, supplemental locking elements and associated key

Also Published As

Publication number Publication date
ES294528U (es) 1987-01-01
ES294528Y (es) 1987-08-16
DE3680027D1 (de) 1991-08-08
DE3518743C2 (enrdf_load_stackoverflow) 1987-08-27
ATE64980T1 (de) 1991-07-15
EP0202949A3 (en) 1988-01-20
EP0202949B1 (en) 1991-07-03
EP0202949A2 (en) 1986-11-26
DE3518743A1 (de) 1986-11-27

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