Patent ID: 7690065

Claim:
An aircraft boarding bridge or aircraft boarding stairs with a gangway bottom plate ( 30 ), said aircraft boarding bridge or said aircraft boarding stairs comprising a generally U-shaped bellows, that spans said gangway bottom plate characterized in that the aircraft boarding stairs or the aircraft boarding bridge comprises a frame apparatus that receives the bellows ( 1 ) for height adjustment of the bellows relative to the gangway bottom plate ( 10 ) so that a height between an upper edge of the gangway bottom plate ( 30 ) and a roof of the bellows ( 1 ) may be changed and the frame apparatus comprises two relatively movable generally inverted U-shaped frame parts ( 11 , 12 ) which are connected together through generally vertically extending longitudinal linear bearing guides ( 13 ) and which are juxtaposed to each other and which are movable vertically relative to each other in a non-telescoping manner, the bellows having a shock buffer ( 1 a ) which is connected to an arm to expand the bellows through a linkage and telescoping members to ensure that the bellows fits against the aircraft fuselage.