Patent ID: 8641352

Claim:
An entrance gate for a parking garage, comprising: at least one stationary ground plate ( 81 ); two separate trace plates ( 82 , 83 ) beside each other, each adapted to receive thereon a front and rear wheel of a car; said trace plates laid on a top surface of said stationary ground plate, movable in the plane in any direction on said top surface of said ground plate in a gliding manner; a stationary top plate ( 84 ) disposed above said two trace plates, said top plate having two elongated cut-out windows ( 85 , 86 ) on opposing sides of a longitudinal centerline of said top plate and each of said two trace plates ( 82 , 83 ) being exposed through one of said cut-out windows; said trace plates movable relative to said top plate and said cut-out windows; and two centering plates ( 87 , 88 ) laid on top of said stationary top plate, disposed on two opposing outer sides of said cut-out windows; said centering plates being connected to two stationary drive units ( 93 , 94 ), said stationary drive units driving synchronous counter-movements of said centering plates; each centering plate movable toward said longitudinal centerline of said top plate; wherein when said centering plates are driven toward each other by said stationary drive units, said centering plates touch outer sides of tires of the car resting on said trace plates and move the car toward a centerline ( 95 ) of said entrance gate, until a longitudinal centerline of the car is in alignment with said centerline of said entrance gate.