Patent ID: 7234326

Claim:
A lock device adapted for use with an object having a lock hole, said lock device comprising: a lock housing unit including an upper lock housing having a coupling part that is formed with a rod hole, and at least one positioning ring that extends outwardly from said coupling part, and a lower lock housing having a first end part coupled to said coupling part of said upper lock housing, and a second end part formed with a jaw hole; a jaw actuating unit including a jaw actuator operable to move relative to said lock housing unit between locking and unlocking positions, said jaw actuator having a ring portion that is disposed adjacent to said positioning ring of said upper lock housing, and an operating rod that extends from said ring portion and through said rod hole in said upper lock housing, and an urging member for urging said jaw actuator to the locking position; and a jaw unit including an overlapping pair of locking jaws received in said lower lock housing, said locking jaws being pivoted to each other and to said lower lock housing, each of said locking jaws having a hooking section that extends out of said jaw hole in said lower lock housing and that is extendible into the lock hole to engage a periphery of the lock hole, and a force bearing section opposite to said hooking section, and a pair of biasing members for biasing said force bearing sections of said locking jaws toward each other; wherein said positioning ring and said ring portion are misaligned and said operating rod permits movement of said force bearing sections of said locking jaws toward each other by virtue of biasing action of said biasing members when said jaw actuator is at the unlocking position, thereby forcing said hooking sections of said locking jaws toward each other such that said hooking sections of said locking jaws can be extended into and removed from the lock hole and are unable to engage the periphery of the lock hole; and wherein said ring portion is aligned with said positioning ring and said operating rod extends between and forces apart said force bearing sections of said locking jaws when said jaw actuator is at the locking position, thereby forcing said hooking sections of said locking jaws apart from each other such that said hooking sections of said locking jaws are capable of engaging the periphery of the lock hole when extended into the lock hole.