| 摘要 |
<p>A lock is disclosed to clamp a wheel of a motor vehicle or motor cycle to prevent its theft once parked. The locking device comprises a housing (1) having a base (2), a front face (3), an opposing rear face (4), two opposing side faces (5,6) and a hinged lid (7) to cover the internals of the housing (1). Pivoting arcuate arms (10,15) extend from the housing (1), A linkage comprises three links (20,21,22) extending between the arms (10,15). The wheel (41) of a vehicle is pushed against the linkage (20,21,22) causing the arms (10, 15) to assume a closed position flanking the rim of the wheel (41). A locking mechanism (39) is then turned to the locked position and the key removed thus preventing movement of the arms (10,15) to any open position. To release the wheel (41), the locking mechanism (39) is first unlocked and the wheel (41) then moved in a direction away from the front face (3), the arms (10,15) being moved by the wheel (41) in an outwards direction.</p> |
