Locks – Operating mechanism – Combination
Patent
1997-12-30
1999-08-10
Boucher, Darnell M.
Locks
Operating mechanism
Combination
70 30, 70316, 70DIG44, E05B 3702
Patent
active
059341203
ABSTRACT:
A lock with a resettable combination includes a locating head having a tube extending therefrom and a locking head having a rod extending therefrom and receivably engaged with the tube. A spring, a set of selectors and a sequence reset device are respectively and sequentially mounted around the tube of the locating head. Each of said plurality of selectors having a rotatable ring, a locating block, a drive block and a torsion spring combined for selection. The sequence reset device includes an annular member and a toggle device for driving the set of selectors. The annular member defines a pair of opposed holes in a periphery thereof. The toggle device is pivotally engaged with the annular member and configured as a semi-circular collar. The semi-circular collar has a pair of cam gears respectively formed on two distal ends defined therein. Each of the pair of cam gears extends through a corresponding one of the pair of opposed holes of the annular member and defines a large-diameter end and a small-diameter end. The large-diameter end and the small-diameter end selectively abut the respective selector when the toggle device is pivoted with respect to the annular member.
REFERENCES:
patent: 4341101 (1982-07-01), Bako
patent: 5027623 (1991-07-01), Ling
patent: 5235831 (1993-08-01), Lauria et al.
patent: 5636539 (1997-06-01), Tsai
patent: 5653136 (1997-08-01), Huang
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