ANTI-THEFT DEVICE OF VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide an anti-theft device of vehicles relatively simple in the structure which can be securely operated by a small force even in power failure. SOLUTION: The anti-theft device of vehicles is constituted of a lock plate (1) driven between a first position having substantially the same height with the floor face of a structure such as parking place and garage and a second position having a specified height on the floor face and a drive device (10) driving the lock plate (1) to the first position and the second position. The drive device (10) is constituted of a piston cylinder unit (11) actuated by city water and a cam (13) driven by the piston cylinder unit (11). In the cam (13), a slant face (14) driving the lock plate (1) from the first position to the second position and a horizontal face (15) retaining in the second position are formed. COPYRIGHT: (C)2005,JPO&NCIPI