Patent ID: 8646590

Claim:
A revolution transport system for manufacturing and assembly lines for the transport of workpieces between several workstations arranged along the transport system, comprising: a transport frame ( 1 ) forming a revolution track with a number of workpiece carriers ( 2 ) movably supported on the revolution track, said revolution track being formed by two horizontally spaced support and guide rails ( 13 , 14 , 15 , 16 ) of which one rail ( 13 , 14 ) extends at the outside around the transport system and forms a carrier and guide rail and the other rail ( 15 , 16 ) forms an inner support rail structure disposed between the carrier and guide rails, each workpiece carrier ( 2 ) being supported by a track-guided carriage ( 21 ) along the outer carrier and guide rail ( 13 , 14 ) as well as the inner support rail structure ( 15 , 16 ) by inner support rollers ( 24 ), the workpiece carrier ( 2 ) including workpiece support or lifting structures ( 23 ) which are disposed outside the outer carrier and guide rail ( 14 , 13 ) for supporting a workpiece outside the outer carrier and guide rail ( 14 , 13 ), the inner support rollers ( 24 ) cooperating with the inner support rail structure ( 15 , 16 ) by engagement with upper as well as lower support surfaces of the inner support rail structure ( 15 , 16 ).