Steering lock with ignition switch blocking means
OwnerWen-hsien Yanginventor
Life of this patent
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Abstract
A steering lock with a lock body having an attached extensible member for adjusting the distance between two locking rods which are connected in parallel through a telescopic tube to form a shackle. The shackle can be extended when clearance is required, and is coupled with a pair of hook-shaped fastening rods which are connected in parallel through another telescopic tube for fastening to the steering wheel. When a lock barrel of the lock body is rotated to a locking position, the first and second latches inside the lock body lock up the locking bars and the extensible member. Two protective cover boards are bilaterally attached to the lock body to prevent insertion of a tool to cut the second latch and prevent injury to fingers during the locking and unlocking operation.
Claims10
A steering lock with ignition switch blocking means comprising:
- a) a shackle including a pair of locking bars, a pair of fastening rods pivotally connected to the locking bars, a first telescopic tube connecting the locking bars in parallel, a second telescopic tube connecting the fastening rods in parallel, and engagement means carried at an end of each fastening rod for engaging a steering wheel;
- b) a lock body including a main portion and an extensible portion, a pair of locking holes extending transversely through the main and extensible portions whereby the spacing between the locking holes may be varied by extending and retracting the extensible portion relative to the main portion, the locking bars being slidably received through the locking holes, a spring-biased button for blocking a recessed ignition switch, and a slot for blocking a raised ignition switch;
- c) a first locking means carried by the lock body and including a spring-biased first latch, a second latch, a spring-biased control block, and a lock barrel including an eccentric block operable by a key to dispose the eccentric block into locking and unlocking positions;
- and
- d) whereby when the eccentric block is disposed in a locking position, the first latch engages the locking bar in the main portion to secure the lock body to the locking bars and the control block engages the second latch to secure the extensible portion and the main portion at a desired spacing between each other.
Dependencies are inferred from the claim text.