Patent ID: 7455228

Claim:
A device for controlling passage in two passage directions having a frame ( 1 ), on which is disposed a blocking device ( 2 ) for the singling of persons and a card reading unit ( 4 ) having a slot ( 9 ) for inserting a card, wherein upon validly reading the card the card reading unit ( 4 ) actuates the blocking device ( 2 ) for releasing the passage ( 7 ) and the card reading unit ( 4 ) is slewably mounted on the frame ( 1 ) and is slewable with an actuator as to direct the card insertion slot ( 9 ) toward a person ( 12 ) stepping in front of the blocking device ( 2 ) from both the one and the other passage direction (A, B), characterized by a sensor system, which detects the position of an approaching person ( 12 ) and activates the actuator for swiveling the card reading unit ( 4 ) in the direction of the approaching person ( 12 ).