Combination lock

Details Combination lock Combination lock

1984-10-19

1986-07-29

Wolfe, Robert L.

Locks

Operating mechanism

Combination

70306, 70317, E05B 3712

Patent

active

046024913

ABSTRACT:
The combination lock includes several encoding buttons, a latch plate is slidably movable between two terminal positions and has a plurality of locking pins; a plurality of lock disks each have on one side a radial groove for respectively engaging the locking pins or being disengaged therefrom, each disk further having on its outer side a diametrical groove in which respective slide locks are permitted to slide, an encoding release slide moves said slide locks; a plurality of gears are respectively connected to the encoding buttons and positioned for engagement with the slide locks, the gears are prevented from turning, thereby preventing the encoding buttons from being turned when the respective slide lock engages the gear and the locking pins are situated in the respective radial grooves, the gears are coupled to the lock disks when the locking pins are out of the respective radial grooves, the release slide when moving the slide locks decouples the lock disks from the gears and the encoding button; and resiliently biased tumblers are associated with the gears such that the gears are releasable only in the end positions of said latch plate.

REFERENCES:
patent: 3411330 (1968-11-01), Atkinson
patent: 4198837 (1980-04-01), Gisiger
patent: 4249469 (1981-02-01), Craske
patent: 4462232 (1984-07-01), Yang

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