Locks – Special application – For portable articles
Patent
1987-02-03
1988-07-12
Wolfe, Robert L.
Locks
Special application
For portable articles
70 71, E05B 6738
Patent
active
047561734
ABSTRACT:
A zipper lock disposed on a shift plate of a zipper includes a longitudinal box-shaped casing; a lock stand having a hollow, substantially P shape; a lock ward having a shape substantially of a numeral 7 with one arm thereof forming a recess shoulder; at least one spring for pushing the lock stand and the lock ward against an inside wall of the casing; a cylindrical lock shaft having a retracted shoulder on upper and lower ends thereof and a key slot; a lock pin plate with an extended protusion at one end thereof having a length equal to that of a hollow part of the lock stand; and a seat plate corresponding to a zipper sliding plate and having a knot hole, a lock shaft hole and two recess holes adjacent the lock shaft hole and corresponding to the protrusion on the lock pin plate; the improvement being that the lock stand provides a resisting force against the lock ward so that when the lock stand is moved longitudinally and an extended arm thereof leaves the recess shoulder of the lock ward, the lock ward will spring out from the casing, thus providing the zipper lock in an open position, and when the zipper lock is in a closed position, the lock pin plate can be rotated by a separate key so that its protusion can be moved from one recess hole in the seat plate to another recess hole, thereby making the lock stand unmovable in the longitudinal direction of the zipper lock and thereby providing the lock in a locked position.
REFERENCES:
patent: 1907778 (1933-05-01), Freysinger
patent: 4343162 (1982-08-01), Giacometti
patent: 4514884 (1985-05-01), Kaneko
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