Supports: cabinet structure – With lock or latch selector-operator
Patent
1980-02-04
1981-12-01
Sakran, Victor N.
Supports: cabinet structure
With lock or latch selector-operator
312217, 312220, 312221, 3121075, 292DIG49, E05B 6546, E05C 706
Patent
active
043032877
ABSTRACT:
Initial opening movement of a drawer in a cabinet by cam action raises a locking bar to lock the other drawers closed. In so doing the locking bar rotates a pinion having an arm which stresses a spring carrying it past an over-center position to maintain the bar in locking position while the moving drawer travels to the fully open position. The end of the closure of this drawer by cam action returns the bar, arm and spring to their initial state. A key-lock mechanism can raise the bar to lock all the drawers shut. If the cabinet is tilted forward substantially, gravity causes a ball to run to a position to hold the pinion against rotation thereby preventing all the drawers from automatically becoming locked due to the bar running to the locking position under gravity or inertia.
REFERENCES:
patent: 335668 (1886-02-01), Woodruff
patent: 1709459 (1929-04-01), Callahan
patent: 2486460 (1949-11-01), Bonenberger
patent: 2814543 (1957-11-01), Siegel
patent: 2873159 (1959-02-01), Becker
patent: 2886392 (1959-05-01), Stegmaier
patent: 3404929 (1968-10-01), Wright et al.
patent: 3700301 (1972-10-01), Boeck
patent: 3888558 (1975-06-01), Himsl
patent: 3900236 (1975-08-01), Goulish et al.
Sakran Victor N.
Vickers Limited
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