Patent ID: 6481061
Filing Date: 2002-11-19
Classification: B21D,Y10T

Abstract:
A crimping ring comprising a rolled-up piece of metal strip (10) whose two ends (12, 14; 52, 54; 112, 114; 152, 154; 212, 214; 252, 254; 312, 314) include respective first and second connection means that co-operate with each other to interconnect said ends,the ring being characterized in that the first connection means comprise a first overlap surface (16, 56, 116, 156, 256, 316) formed in the first end of the piece of strip as a setback from the first face of said piece of strip, together with at least one female member (18, 58, 118A, 118B, 158, 218, 258, 318) recessed from said first overlap surface, while the second connection means comprises a second overlap surface (20, 60, 120, 260) formed in the second end of the piece of strip as a setback from the second face of said piece of strip, together with a male member (22, 62, 122A, 122B, 162, 222, 262, 312) projecting from said second overlap surface, and in that the male member is engaged in the female member and fixed thereto while the overlap surfaces are placed one against the other so as to define a connection zone whose thickness (EZ) is substantially equal to the thickness (E) of the main portion of the piece of strip.