Key cylinder device

Details Key cylinder device Key cylinder device

1996-02-29

1998-06-30

Boucher, Darnell M.

Locks

Operating mechanism

Key

70422, 70379R, 70416, 292DIG37, 292DIG62, E05B 2700

Patent

active

057717230

ABSTRACT:
A key cylinder device in which, in a locked state, a lock-releasing mechanism is provided so as not to operate even if a cylinder case swings. When a first lever rotates in a counterclockwise direction with respect to the cylinder case, a shaft provided on a second lever extends from a side surface of the second lever and engages with a third lever to move a rod attached to the third lever in a lock-releasing direction. Further, when the first lever does not move relatively with respect to the cylinder case, even if the cylinder case swings, the shaft does not extend from the side surface of the second lever and does not engage with the third lever. For this reason, there is no possibility that the rod attached to the third lever move in the lock-releasing direction.

REFERENCES:
patent: 2059479 (1936-11-01), North
patent: 2221095 (1940-11-01), Jacobi
patent: 2357004 (1944-08-01), Jacobi
patent: 2437299 (1948-03-01), Jacobi
patent: 2570556 (1951-10-01), Jacobi
patent: 2587583 (1952-03-01), Allen et al.
patent: 2687637 (1954-08-01), Jacobi
patent: 3304755 (1967-02-01), Johnstone
patent: 3868836 (1975-03-01), La Roche
patent: 3964280 (1976-06-01), Kelton
patent: 4073170 (1978-02-01), Miyabayashi et al.

Affiliated with

Also associated with

Rating

Key cylinder device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Key cylinder device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Key cylinder device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1848499