| 摘要 |
<p>An essentially vertical air supply duct 14 which extends over the height of the vehicle and comprises a slot nozzle 16 directed towards the side surface is mounted on a frame 1 so as to be slidable perpendicularly to the direction of travel of the vehicle 2. The air supply duct 14 is pivotable at its upper end 14a about a horizontal pivot shaft A extending perpendicularly to the direction of travel B of the vehicle. On both sides of the slot nozzle 16 are disposed soft, elastically yielding support elements 17 projecting towards the vehicle. Loading means act on the duct 14 in a direction towards the side surface of the vehicle. A control device for a servo-motor which effects sliding movement of the duct 14 comprises at least one tilt switch 19 connected to the duct 14 and responsive to swinging of the duct 14 when elements 17 contact the side of the vehicle. <IMAGE></p> |
