Safe relock mechanism

Details Safe relock mechanism Safe relock mechanism

1980-03-17

1982-08-03

Lyddane, William E.

Locks

Special application

For closures

70118, 292 37, E05B 6314

Patent

active

043422071

ABSTRACT:
In a safe locking mechanism including a spindle which rotates a cam plate to extend or withdraw a plurality of locking bolts, a novel relock mechanism includes a floating hard plate interposed between the inside surface of the safe door and the cam plate. A plurality of springs are disposed between the interior surface of the safe door and the floating hard plate to bias the hard plate toward the cam plate. Each of the locking bolts includes a chordal notch therein to engage the edge of the hard plate and prevent retraction of the locking bolts. The cam plate includes raised camming rails which engage raised buttons on the hard plate, so that rotation of the camming plate releases the hard plate from the notches in the locking bolts and permits the bolts to be withdrawn only by rotation of the spindle.

REFERENCES:
patent: 826607 (1906-07-01), Price
patent: 1478343 (1923-12-01), Looney
patent: 1530655 (1925-03-01), Dowling
patent: 3158017 (1964-11-01), Guze, Jr.
patent: 3760618 (1973-09-01), Wiczer
patent: 4233913 (1980-11-01), Herrmann

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