GB1349016A - Cylinder lock mechanisms - Google Patents
Cylinder lock mechanismsInfo
- Publication number
- GB1349016A GB1349016A GB1349016DA GB1349016A GB 1349016 A GB1349016 A GB 1349016A GB 1349016D A GB1349016D A GB 1349016DA GB 1349016 A GB1349016 A GB 1349016A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- tumblers
- key
- stack
- disc
- 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
Links
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
- E05B21/06—Cylinder locks, e.g. protector locks
- E05B21/063—Cylinder locks, e.g. protector locks of the sliding-plate tumbler type
Landscapes
- Lock And Its Accessories (AREA)
Abstract
1349016 Cylinder locks ANSALA OY 13 Oct 1971 47614/71 Heading E2A A cylinder lock mechanism comprises a housing 3 containing a cylinder 2 carrying a stack of tumblers 7 which in the locking condition engage one or more grooves in the housing to prevent rotation of the cylinder and which are retracted by rotating a key to enable the cylinder to be turned in an operative direction, a disc 4 being provided in the cylinder between the stack and an internal face of the cylinder, the disc having ratchet teeth which are in engagement with ratchet teeth 5 on the cylinder, the arrangement being such that when the key is rotated in the operative direction to retract the tumblers 7 the disc 4 is rotated relative to the cylinder, but when the key is rotated in the opposite direction, relative rotation of the discs and cylinder is prevented by the ratchet teeth, so preventing the projection of the tumblers from the cylinder whereupon the cylinder can be rotated in the direction opposite to the operative direction beyond its initial position in which the tumblers are engaged with the groove(s), the ratchet teeth being released by a spring 12 when the stack of tumblers is pulled by the key towards the front of the mechanism thus enabling the tumblers to turn relative to the cylinder as the key is pulled out of the mechanism; the stack of tumblers being restored to its normal position after being pulled by the key by a spring 10, provided at the opposite end of the housing and acting on the tumblers through a disc 11.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4761471 | 1971-10-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1349016A true GB1349016A (en) | 1974-03-27 |
Family
ID=10445629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1349016D Expired GB1349016A (en) | 1971-10-13 | 1971-10-13 | Cylinder lock mechanisms |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1349016A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0017366A1 (en) * | 1979-03-16 | 1980-10-15 | Chubb Lock & Safe Limited | Cylinder locks |
EP0064875A2 (en) * | 1981-05-11 | 1982-11-17 | C.E. Marshall (Wolverhampton) Limited | Cylinder locks |
US5131248A (en) * | 1987-08-28 | 1992-07-21 | Ihui Ho | Structure of key and lock barrel for lock set |
-
1971
- 1971-10-13 GB GB1349016D patent/GB1349016A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0017366A1 (en) * | 1979-03-16 | 1980-10-15 | Chubb Lock & Safe Limited | Cylinder locks |
EP0057475A1 (en) * | 1979-03-16 | 1982-08-11 | C.E. Marshall (Wolverhampton) Limited | Cylinder locks |
EP0064875A2 (en) * | 1981-05-11 | 1982-11-17 | C.E. Marshall (Wolverhampton) Limited | Cylinder locks |
EP0064875A3 (en) * | 1981-05-11 | 1983-04-20 | L & F Willenhall Limited | Cylinder locks |
US5131248A (en) * | 1987-08-28 | 1992-07-21 | Ihui Ho | Structure of key and lock barrel for lock set |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |