Airflow smoothing system for junction between rear part of vehicle roof and top part of rear windscreen incorporates transverse ridge on seal at edge of groove between roof and rear windscreen

摘要

The roof (7) is joggled inward (17) at the edge of the aperture for the rear windscreen (9). A modified S-shaped seal (21) has a groove with a lip (29) fitting over the edge (23) of the windscreen. There is a gap (11) between the joggle in the roof and the bottom of the U- shaped portion (27) of the seal fitting over the edge of the windscreen. A lip (25) extends across the gap, sealing it and preventing access of rainwater. A strip of adhesive (19) holds the rear windscreen in place. An external transverse rib (31) on the seal promotes turbulence to prevent separation of the boundary layer.