Patent ID: 6067829
Filing Date: 2000-05-30
Classification: B21C

Abstract:
A device for producing a tubular structure including a spiral winding made of at least one shaped wire delivered from a first reel of wire having noninterlocking wire and a second reel of locking wire delivered from a reel of locking wire, said device comprising:motorized circular cage rotating about a horizontal axis with which a longitudinal axis of said tubular structure coincides, said tubular structure being formed at a point located near to a downstream face of the cage; anda driver which longitudinally drags said tubular structure;said first reel of wire and said second reel of locking wire being loaded on said cage and rotate with said cage; anda face of said cage supporting at least one on-board linear tensioner, said tensioner drags wire delivered from said first reel of wire, and said tensioner being interposed between said first reel of wire and a lay point at which said tubular structure is laid.