Locks – Operating mechanism – Key
Patent
1987-01-23
1988-07-12
Wolfe, Robert L.
Locks
Operating mechanism
Key
70378, 70358, 70419, 70421, E05B 2706
Patent
active
047561777
ABSTRACT:
A rotary cylinder lock and a corresponding key blade are disclosed. The cylinder lock comprises a cylinder shell (19), a key plug (20) rotationally mounted in the shell (19) to provide a shear line (21) between the shell and the key plug, a key slot (11) extending into the key plug (20) parallel to the rotational axis thereof for receiving a key blade (1), at least one locking tumbler (23b) including an elongated body portion guided in a complementary cavity (33b) in the key plug (20), the elongated body portion being capable of rotational movement about its longitudinal axis, and a fence member blockingly associated with the locking tumbler and shaped so that rotational positioning of said locking tumbler with a properly shaped key blade allows said fence member to clear the shear line. The locking tumbler (23a-23e) is further provided with a finger (23bf), which projects transversely outwardly from the rotational axis of the elongated body portion (23b) so as to pivot about the longitudinal axis of said elongated body portion during rotation of the latter, said finger (23bf) extending into the key slot (11) for engagement with the key blade and therewith effecting rotational positioning of the elongated body portion of the locking tumbler.
REFERENCES:
patent: Re30198 (1980-01-01), Oliver et al.
patent: D274302 (1984-06-01), Widen
patent: 758026 (1904-04-01), Taylor
patent: 2023847 (1935-12-01), Liss
patent: 2039126 (1936-04-01), Svoboda
patent: 3035433 (1962-05-01), Testa
patent: 3722240 (1973-03-01), Spain et al.
patent: 4356713 (1982-11-01), Widen
patent: 4393673 (1983-07-01), Widen
patent: 4434636 (1984-03-01), Prunbauer
patent: 4453432 (1984-06-01), Widen
patent: 4507944 (1985-04-01), Widen et al.
Widen Innovation AB
Wolfe Robert L.
LandOfFree
Lock and key blade does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lock and key blade, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lock and key blade will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-657972