Motor vehicle air duct seal

A motor vehicle having a door swingingly mounted on a vehicle body, an air duct on said door that aligns with an air duct on said vehicle body when the door is closed, and collapsible leaf spring biased seal means mounted between said door and vehicle body for sealingly joining said ducts when the door is closed, said seal means comprising a bellows that is sealingly fixed at one of two opposite ends thereof to said door about the air duct thereon, a leaf spring fixed to said door internal of said bellows and operative to urge the other end of the bellows toward sealing engagement with the air duct on the vehicle body, and said other end of said bellows having seal face means disposed obliquely to said one end with said door opened for slidably contacting said air duct on the vehicle body so as to gradually collapse said bellows as the door closes.