Tubular automobile seat frame - has ends of springs joined to straight parts of tubes curved at rear

摘要

There is a foundation piece (1) for a seat cushion (2). The springs (3), (6) for this consists of waved spring steel forming a central loaded area (4). The lateral zones (5) have similar springs (6). There is a cross tube (7) and incurved pieces (8) in the base, the latter connecting with vertical parts (10e housing pivots for the seat back. The seat back is of tubular construction with cross brace pieces (34), (35) and U shaped pieces of tube (26) welded on at either side. Springs (37) run vertically in the seat cushion lugs (23), (231) at the base of the seat back locate on a shaft (33), pivoting in the vertical parts (10) from the base.