Locks – Operating mechanism – Combination
Patent
1987-05-21
1988-08-30
Wolfe, Robert L.
Locks
Operating mechanism
Combination
70316, E05B 3702
Patent
active
047667486
ABSTRACT:
The present invention relates to a knockdown type combination locking device which comprises: a housing body in the form of a rectangular structure with a hollow space for containing a dialing wheels set, a tongue at top of an end side, and two longitudinal sides each with a inclined protrusion at an end; a front plate made of plastic material by injection process, having a plurality of dialing wheel openings, a latch opening and a shifter opening on the front side and two parallel connecting plate at the bottom each with a latch openings and such connecting plate is higher at the latch opening side; a sliding member in the form of a board having a plurality of dialing wheel openings and two hooks at one end, two rectangular openings at the other end; a coupling element in the form of a U-sheet having two openings and two forked portions at a lateral side; and an operating mechanism made of plastic material by injection process having a pair of parallel pawls extending perpendicularly and each pawl has a hook for seizing to the coupling element and the sliding member at the respective openings for combination the front plate to the housing body to form a combination locking device.
REFERENCES:
patent: 3400226 (1968-09-01), Krumreich
patent: 3439515 (1969-04-01), Gehria
patent: 4554809 (1985-11-01), Yang
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