CA2056461A1 - Cylinder Lock - Google Patents

Cylinder Lock

Info

Publication number
CA2056461A1
CA2056461A1 CA 2056461 CA2056461A CA2056461A1 CA 2056461 A1 CA2056461 A1 CA 2056461A1 CA 2056461 CA2056461 CA 2056461 CA 2056461 A CA2056461 A CA 2056461A CA 2056461 A1 CA2056461 A1 CA 2056461A1
Authority
CA
Canada
Prior art keywords
sleeve
cylinder
key cylinder
key
cylinder lock
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
CA 2056461
Other languages
French (fr)
Other versions
CA2056461C (en
Inventor
Takeshi Fukasawa
Junji Ohkawara
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.)
Alpha Corp
Original Assignee
Takeshi Fukasawa
Junji Ohkawara
Alpha Corporation
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 Takeshi Fukasawa, Junji Ohkawara, Alpha Corporation filed Critical Takeshi Fukasawa
Publication of CA2056461A1 publication Critical patent/CA2056461A1/en
Application granted granted Critical
Publication of CA2056461C publication Critical patent/CA2056461C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/04—Devices for coupling the turning cylinder of a single or a double cylinder lock with the bolt operating member

Landscapes

  • Lock And Its Accessories (AREA)

Abstract

A cylinder lock is disclosed having significant resistance to damage or tampering. The cylinder lock comprises a cam provided on the key cylinder;
and a pair of pins disposed radially slidably in openings provided in the sleeve rotatably disposed within a casing. The pins are moved within the openings of the sleeve by the cam on the key cylinder which is rotatably posi-tioned within the sleeve when the key cylinder is turned by a proper key independently of the sleeve to a predetermined angle, as tumblers provided within the key cylinder are disengaged from the sleeve. Then, the pin comes into engagement with and is rotated with the connector together to unlock the lock device.
CA 2056461 1990-11-30 1991-11-28 Cylinder lock Expired - Fee Related CA2056461C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2330273A JP3017276B2 (en) 1990-11-30 1990-11-30 Cylinder lock
JP2-330273 1990-11-30

Publications (2)

Publication Number Publication Date
CA2056461A1 true CA2056461A1 (en) 1992-05-31
CA2056461C CA2056461C (en) 1997-04-29

Family

ID=18230807

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2056461 Expired - Fee Related CA2056461C (en) 1990-11-30 1991-11-28 Cylinder lock

Country Status (4)

Country Link
EP (1) EP0488787B1 (en)
JP (1) JP3017276B2 (en)
CA (1) CA2056461C (en)
DE (2) DE488787T1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9205835U1 (en) * 1992-05-04 1992-07-30 Niemann, Hans Dieter, 5014 Kerpen Lock cylinder
EP0650874B1 (en) * 1993-02-26 2000-07-12 Alpha Corporation Steering lock device
US5640864A (en) * 1993-12-27 1997-06-24 Alpha Corporation Cylinder lock resistible against breaking
FR2766512A1 (en) * 1997-07-28 1999-01-29 Euro Locks Cam lock
ES2168905B1 (en) * 1999-07-07 2003-11-01 Valeo Sist S De Seguridad S A LOCK, ESPECIALLY FOR VEHICLE DOOR, WITH RETURN SPRING OF THE OPENING LEVER.
JP5005459B2 (en) * 2007-07-30 2012-08-22 株式会社東海理化電機製作所 Cylinder lock and unlocking device having the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2550817B1 (en) * 1983-08-17 1988-01-08 Guitard Robert LOCK WITH SAFETY BLOCK AND FIXING RING

Also Published As

Publication number Publication date
JP3017276B2 (en) 2000-03-06
CA2056461C (en) 1997-04-29
EP0488787A1 (en) 1992-06-03
DE488787T1 (en) 1992-11-05
DE69104465T2 (en) 1995-03-02
DE69104465D1 (en) 1994-11-10
EP0488787B1 (en) 1994-10-05
JPH04203084A (en) 1992-07-23

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed