A bifold door assembly for an access port in a vehicle having a non-linear side wall. The assembly includes a pair of bifold doors, each having a planar outer panel disposed in a plane between an upper overhang and lower stepwell which extend outwardly of the vehicle side wall. The proximate edges of...http://www.google.se/patents/US4346931?utm_source=gb-gplus-sharePatent US4346931 - Bifold vehicle door assembly
