Locks – Operating mechanism – Key
Patent
1976-08-20
1978-01-24
Wolfe, Robert L.
Locks
Operating mechanism
Key
70386, 70404, E05B 2708
Patent
active
040696960
ABSTRACT:
A lock and key combination includes an axial split-pin tumbler-type lock having a lock cylinder and a barrel assembly secured within the cylinder. The barrel assembly includes a forwardly disposed rotatable operating part and a rearwardly disposed stationary part, which carry in longitudinal bores thereof spring-pressed tumblers having separate driver and follower elements, the driver elements of which extend forwardly out of the bores for engagement with the key. The operating part has a planar front face surrounding a forwardly extending key guide post adapted to resist application of lock-picking torque. The key has a shank provided with a socket adapted for receiving the guide post therein. Bittings on the outer periphery of the shank are adapted for engagement with the front ends of the driver elements to hold the tumblers in positions wherein a transverse interfacial plane between the operating and stationary parts coincides with the joints between the driver and follower elements to free the operating part for rotation. A drive tooth on the outer periphery of the key shank is adapted for sidewise engagement alternately with two of the driver elements, for driving the operating part alternately in opposite directions when the key is turned in such directions.
REFERENCES:
patent: 3509748 (1970-05-01), Trainer
patent: 3744286 (1973-07-01), Trainer
patent: 3813906 (1974-06-01), Kerr
patent: 3903720 (1975-09-01), Scherbing
patent: 3961507 (1976-06-01), Falk
Chicago Lock Co.
Gerlach Norman H.
Wolfe Robert L.
LandOfFree
Axial split-pin tumbler-type lock and key therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Axial split-pin tumbler-type lock and key therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Axial split-pin tumbler-type lock and key therefor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-482217