Locks – Portable – Padlocks
Patent
1993-08-16
1995-03-28
Cuomo, Peter M.
Locks
Portable
Padlocks
70 39, C05B 6722
Patent
active
054006244
ABSTRACT:
The invention relates to a U-shaped padlock structure comprising a transverse locking mechanism provided inside the tubular lock body. The locking mechanism consists of a lock cylinder 31, a V-shaped cam 32, a front slide 33, a core rod 34, a resilient element 35, a locating element 36, a center element 37, a rear slide 38, and a short core pin 39 in sequence. The transverse locking mechanism is operated by turning the lock core of the lock cylinder 31 to rotate together with the V-shaped cam 32, which in turn urges the front slide 33, the core rod 34, and the rear slide 38 to move together in a transverse leftward or rightward direction, resulting in a locking or unlocking effect by way of the engagement or disengagement of the core pin with the locking holes formed on the U-shaped shackle. In addition, with the arrangements of an elliptical axle hole 333 of the front slide and a stepped column 345 having a larger diameter provided on the middle segment of the core rod, in cooperation with the axle hole 362 of the locating element 36, the invention can prevent the padlock from being destructed by giant impact or consecutive strikes, thus enhancing the security protection provided by the locking device.
REFERENCES:
patent: 4584855 (1986-04-01), Burlingame
patent: 4949564 (1990-08-01), Barzilai
patent: 5199282 (1993-04-01), Wang
patent: 5331830 (1994-07-01), Su
Boucher Darnell M.
Cuomo Peter M.
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