EP1366256B1 - Rotating pin tumbler side bar lock with side bar control - Google Patents

Rotating pin tumbler side bar lock with side bar control Download PDF

Info

Publication number
EP1366256B1
EP1366256B1 EP02704245A EP02704245A EP1366256B1 EP 1366256 B1 EP1366256 B1 EP 1366256B1 EP 02704245 A EP02704245 A EP 02704245A EP 02704245 A EP02704245 A EP 02704245A EP 1366256 B1 EP1366256 B1 EP 1366256B1
Authority
EP
European Patent Office
Prior art keywords
slider
key
cylinder
lock
side bar
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.)
Expired - Lifetime
Application number
EP02704245A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1366256A4 (en
EP1366256A1 (en
Inventor
Peter H. Field
Andy E. Perkins
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.)
Assa Abloy High Security Group Inc
Original Assignee
Medeco Security Locks Inc
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
Priority claimed from US09/981,801 external-priority patent/US6477875B2/en
Application filed by Medeco Security Locks Inc filed Critical Medeco Security Locks Inc
Publication of EP1366256A1 publication Critical patent/EP1366256A1/en
Publication of EP1366256A4 publication Critical patent/EP1366256A4/en
Application granted granted Critical
Publication of EP1366256B1 publication Critical patent/EP1366256B1/en
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
    • E05B27/0032—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with both axially and radially arranged tumbler pins or balls
    • 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
    • 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
    • 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
    • E05B27/0053—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in for use with more than one key, e.g. master-slave key
    • 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
    • E05B27/0082—Side bar locking

Definitions

  • This invention relates rotating pin tumbler side bar locks and keys therefor, such as the ones described in US 3,499,302 .
  • Known locks having dual (that is, two-way) security features, along with cooperating keys include locks with rotatable, reciprocating tumblers and a side bar which cooperates with the tumblers (as in US 3,499,302 and in WO 99/64703 ) or locks with non-rotatable, reciprocating tumblers and an independently-functioning slider (as in FR 2 388 966 A and US 5,615,566 ).
  • an elongated fence member is slidably arranged in a fence slot so that a projection at its outer surface can engage a cam groove formed in the inner cylinder wall.
  • US 5,615,566 discloses a cylinder lock and key.
  • the cylinder lock has reciprocating, non-rotating tumblers, and the cylinder plug also includes a slot extending parallel to the keyway for receiving a locking bar.
  • the locking bar includes a rear finger portion that extends into a lock shell notch and prevents rotation of the cylinder plug relative to the cylinder shell.
  • the locking bar is biased by a spring into the locking position.
  • the key includes a protruding surface extending from one side of the blade for engaging the front end of the locking bar when the key is inserted into the keyway to push the rear finger-out of the lock shell notch, thereby permitting the cylinder plug to rotate relative to the cylinder shell when the tumblers are properly elevated.
  • FR 2 388 966 A discloses a cylinder lock and key.
  • the cylinder lock has one set of spring-biased, reciprocating, non-rotating tumblers, which engage the bittings on the key for being elevated to the proper position, and one further spring-biased, reciprocating, non-rotating tumbler which is elevated to its proper position by engagement with the notch of a slider, which can move in the direction of insertion of the key.
  • the slider is moved into its proper position, against the force of a biasing spring, by the pushing action of the key, when the key is inserted into the lock.
  • WO 99/64703 describes a cylinder lock. Rotation of the cylinder is controlled by reciprocating locking tumblers on one side of the key passage and a series of rotating locking tumblers arranged on an opposite side of the key passage.
  • a spring-biased locking bar provides an additional locking mechanism between the cylinder plug and the cylinder housing, and this locking bar cooperates with the rotating tumblers to control operation of the cylinder. Positioning of the rotating tumblers into the proper operative alignment with the locking bar is effected by a serpentine groove formed in the blade of the key.
  • a further and extremely desirable feature of a high security lock is the capability for master keying. Providing additional security and utilizing such provision for master keying provides capability for master keyed systems.
  • This invention enhances the security of the basic twisting tumbler dual locking mechanism lock known as the Medeco type lock and can be applied to any Medeco type lock with a side bar mechanism including the original Medeco cylinder lock, the Medeco cam lock, the Medeco Biaxial® lock, and the Medeco Bi-Level® lock with offset tip tumbler pins.
  • the invention solves the problems of the prior art by providing a cylinder lock according to claim 1 or a method according to claim 16.
  • the invention utilizes a sliding member which slides generally axially in the cylinder of the lock and has a projection for contact with an end of a rib on a key blade. The key thus positions the slider which controls the side bar to allow the side bar to move to an unblocked position.
  • the slider control of the side bar and the unique key and key blade provide further degrees of security, allow master keying and key control.
  • a cylinder or plug 10 has a keyway 12 as is conventional in Medeco locks.
  • Tumbler holes 14 are provided for rotating, reciprocating, i.e., twisting tumblers 11 (FIG. 12) which have configurations 13 on their side for reception of a side bar 16 as taught and shown in the prior art Medeco constructions and patents identified above, see FIGS. 12 and 13. Because remaining portions of such Medeco locks are known, for the sake of simplicity they have not been shown, except for the illustration of prior art in FIGS. 12 and 13.
  • the side bar 16 is positioned to reciprocate transverse to the axis of the cylinder plug 10 and biased by springs away from the plug to provide a further level of locking control for the lock, as is known.
  • the side bar has a cam 18 for cooperating with a cam groove 19 on the inside of the casing, also as is conventional in Medeco locks, see FIG. 13. When the plug is attempted to be rotated by the key the cam groove 19 allows the side bar to be forced inwardly toward the center of the cylinder.
  • the side bar has projections 20 for engaging the configurations 13 on the tumblers 11 to allow the side bar to move toward the axis of the plug and clear the casing when the tumblers are rotated by the key to a correct position, as in known Medeco locks.
  • the side bar also has spaced slots 22 positioned along its lower surface as shown in FIGS. 1 and 2. Projections 23 are defined by the spaces between the slots.
  • a slider 24 Positioned in an axial hole 30 in the cylinder plug is a slider 24 which can slide on an axis parallel to the axis of the rotatable cylinder plug.
  • the slider itself has a projection 26 at one end which extends into the keyway 12 for engagement with proper key as will be described.
  • a spring 28 is provided for biasing the slider axially in hole 30 in a duration toward the front or key entry point of the lock.
  • the slider 24 also has spaced tangs 32 on its surface as shown in FIGS. 1, 2 and 3. These tangs are of sufficient size and length to either fit in the slots 22 of the side bar when the slider is properly positioned, or interfere with the projections 23 on the side bar when not properly positioned. As shown in FIG. 2, the tangs 32 on the slider and projections 23 on the side bar 16 interact thus preventing the side bar from moving inwardly, thus blocking operation of the side bar and hence the lock.
  • the slider provides a third level of lock control in addition to the reciprocation and rotation of the tumblers.
  • a unique key blank 34 may be provided with proper bitting 35 for operating the lock.
  • the key blank has a bow 36 and a blade 38.
  • the blade has a profile which conforms to the profile of the keyway 12.
  • FIGS. 8, 9, 10 and 11 show other embodiments having different configurations of the contact surface 42 on key rib 40 and showing the slider 24 superimposed, the slider projection 26 having a surface complimentary to the contact surface 42.
  • FIG. 8 is the same as the FIGS. 1-7 embodiment, but in the open position of FIG. 6.
  • the slider projection as a step 44 for receiving a similarly configured key rib end 42a.
  • FIG. 10 has a slanting surface 46 for cooperating with a slant surface 42b on the distal end of key rib 40.
  • FIG. 11 has a tooth shaped surface 48 on projection 26 for cooperating with a complimentary shaped rib surface 42.
  • the key of FIG. 8 will correctly position the slider shown in FIG. 8 and the key of FIG.
  • FIG. 11 will correctly operate the slider in FIG. 11.
  • the key in FIG. 8 will also correctly position the slider of FIG. 11.
  • the key of FIG. 11 will push the slider of FIG. 8 too far and the lock will not open.
  • the key of FIG. 8 will not operate with a slider configured as in FIG. 9 or as in FIG. 10 because it would push the slider too far and the lock will not open.
  • FIGS. 14-20 show an alternative embodiment in which the blocking member or slider instead of being a rod insertable into the end of the cylinder is in the form of a block which is insertable from the bottom of the keyway.
  • the blocking member or slider instead of being a rod insertable into the end of the cylinder is in the form of a block which is insertable from the bottom of the keyway.
  • FIGS. 14, 15 and 16 show the slider in position to not block the side bar.
  • the plug 10 has its keyway 12 open at the bottom.
  • the side bar 16' has spaced slots 22' which will allow the sidebar to either clear or be blocked by the slider as will be described below.
  • the invention is in the environment of the Medeco twisting tumbler locks as shown in FIGS.
  • the slider in this embodiment is a block shaped member 24' shaped to fit within the cylinder shell and to be inserted from the open bottom of the keyway 12.
  • a spring 28' is provided by biasing the slider toward the bow of the key as shown in FIGS. 15 and 18.
  • the slider moves axially of the key in space 30'.
  • the plug shaped slider has spaced tangs 32' on its upper surface as shown in FIGS. 15 and 18. These tangs can move into slots 22 in the side bar when the slider is positioned by the key as shown in FIGS. 15 and 16. However, as shown in FIG.
  • the key 34' is inserted into the keyway 12 to move the slider 24' against the bias of spring 28' and when the projections 32' are in the position to cooperate with grooves 22', the side bar 16' can operate to allow the key to turn the plug and operate the lock. Unless the portion 42' of the key 34' contacts the projection of 35, the slider or block 24' will block operation of the lock.
  • FIGS. 8-11 could also be used with this embodiment.

Landscapes

  • Lock And Its Accessories (AREA)
  • Supports Or Holders For Household Use (AREA)
  • Domestic Plumbing Installations (AREA)
  • Switches With Compound Operations (AREA)
EP02704245A 2001-02-06 2002-01-28 Rotating pin tumbler side bar lock with side bar control Expired - Lifetime EP1366256B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US77692901A 2001-02-06 2001-02-06
US776929 2001-02-06
US981801 2001-10-19
US09/981,801 US6477875B2 (en) 2001-02-06 2001-10-19 Rotating pin tumbler side bar lock with side bar control
PCT/US2002/002211 WO2002066773A1 (en) 2001-02-06 2002-01-28 Rotating pin tumbler side bar lock with side bar control

Publications (3)

Publication Number Publication Date
EP1366256A1 EP1366256A1 (en) 2003-12-03
EP1366256A4 EP1366256A4 (en) 2007-06-27
EP1366256B1 true EP1366256B1 (en) 2007-12-12

Family

ID=27119259

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02704245A Expired - Lifetime EP1366256B1 (en) 2001-02-06 2002-01-28 Rotating pin tumbler side bar lock with side bar control

Country Status (19)

Country Link
EP (1) EP1366256B1 (ja)
JP (1) JP4219685B2 (ja)
CN (1) CN1260453C (ja)
AR (1) AR032543A1 (ja)
AT (1) ATE380913T1 (ja)
AU (1) AU2002237938B2 (ja)
BR (1) BR0207036B1 (ja)
CA (1) CA2435335C (ja)
DK (1) DK1366256T3 (ja)
EG (1) EG23147A (ja)
ES (1) ES2298347T3 (ja)
HK (1) HK1060606A1 (ja)
IL (1) IL157250A (ja)
MX (1) MXPA03006983A (ja)
NO (1) NO337543B1 (ja)
NZ (1) NZ528007A (ja)
PL (1) PL204066B1 (ja)
TW (1) TW513510B (ja)
WO (1) WO2002066773A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4321714A1 (de) * 2022-07-25 2024-02-14 C.Ed. Schulte Gesellschaft mit beschränkter Haftung Zylinderschlossfabrik Schliesssystem bestehend aus einem schliesszylinder und einem passenden schlüssel

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6945082B2 (en) * 2001-02-06 2005-09-20 Medeco Security Locks, Inc. Key blank, key and master keying system
US8438889B2 (en) * 2007-02-22 2013-05-14 Sargent Maufacturing Company Shaped top pin for bump resistant cylinder

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499302A (en) * 1967-03-01 1970-03-10 Roy C Spain Cylinder lock
US3748881A (en) * 1972-01-04 1973-07-31 Illinois Tool Works Key ejector lock
FR2388966A1 (fr) * 1977-04-27 1978-11-24 Gruslin Philippe Perfectionnement aux serrures a barillet
DE3630524A1 (de) * 1986-09-08 1988-03-10 Sigismund Laskowski Schiebevorrichtung fuer eine abtastsicherungseinrichtung in einem schliesszylinder
US5419168A (en) * 1991-10-24 1995-05-30 Medeco Security Locks, Inc. Hierarchical cylinder lock and key system
AT400968B (de) * 1993-03-03 1996-05-28 Evva Werke Zylinderschloss und flachschlüssel mit steuernuten
US5615566A (en) * 1995-09-18 1997-04-01 Brandt; Greg N. Cylinder lock and key
ITTO980491A1 (it) * 1998-06-05 1999-12-05 Mottura Serrature Di Sicurezza Serratura a cilindro.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4321714A1 (de) * 2022-07-25 2024-02-14 C.Ed. Schulte Gesellschaft mit beschränkter Haftung Zylinderschlossfabrik Schliesssystem bestehend aus einem schliesszylinder und einem passenden schlüssel

Also Published As

Publication number Publication date
DK1366256T3 (da) 2008-05-05
HK1060606A1 (en) 2004-08-13
EG23147A (en) 2004-05-31
NO20033392L (no) 2003-08-04
BR0207036A (pt) 2004-02-25
CA2435335A1 (en) 2002-08-29
IL157250A0 (en) 2004-02-19
WO2002066773A1 (en) 2002-08-29
JP4219685B2 (ja) 2009-02-04
AU2002237938B2 (en) 2006-06-29
AR032543A1 (es) 2003-11-12
PL204066B1 (pl) 2009-12-31
PL363376A1 (en) 2004-11-15
TW513510B (en) 2002-12-11
CA2435335C (en) 2010-01-26
NO20033392D0 (no) 2003-07-30
NO337543B1 (no) 2016-05-02
JP2004521201A (ja) 2004-07-15
ES2298347T3 (es) 2008-05-16
NZ528007A (en) 2004-06-25
EP1366256A4 (en) 2007-06-27
CN1491311A (zh) 2004-04-21
BR0207036B1 (pt) 2013-03-05
EP1366256A1 (en) 2003-12-03
IL157250A (en) 2005-07-25
CN1260453C (zh) 2006-06-21
MXPA03006983A (es) 2003-11-18
ATE380913T1 (de) 2007-12-15

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