Patent ID: 7040978

Claim:
Sliding door device ( 10 ) comprising at least one movable sliding door ( 11 ) and boundary parts ( 12 ) to hold and guide the movable, sliding doors ( 11 ), which automatically open and/or close a doorway ( 20 ) under the direction of a control unit, where at least certain edges of the sliding door ( 11 ) are enclosed by frame parts ( 14 ); where a blower is able to produce an air curtain ( 24 ), which emerges through a longitudinal opening and passes in front of the doorway ( 20 ); and where the air curtain flows out from an opening ( 17 ) in the frame part ( 14 ), which opening extends over nearly the entire length of a vertical edge of the door, the frame part being mounted on the exposed vertical edge ( 13 ) of the sliding door ( 11 ), wherein the frame part ( 14 ) has a receptacle ( 15 ), in which the blower ( 16 ) which produces the air curtain ( 24 ) is installed, the curtain being discharged through a nozzle-like outlet ( 17 ), and in that the intake ( 18 ) for the blower ( 16 ) is provided in the frame part ( 14 ).