Method for providing a cylindrical member with increased...

Details Method for providing a cylindrical member with increased... Method for providing a cylindrical member with increased...

F - Mech Eng,Light,Heat,Weapons

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C

64/1, 26/180

F16C 3/02 (2006.01) B29C 53/58 (2006.01) B29C 53/80 (2006.01) B65H 81/00 (2006.01)

Patent

CA 1276478

ABSTRACT OF THE DISCLOSURE A cylindrical member (1) such as a trans- mission shaft is provided with high strength in torsion and light weight by means of a composite strip (2) wound helically around the cylindrical member under tension and in opposite directions (F1, F2) in succession. The tension exerted on the strip is such that a winding (2a, 2c) formed in one direction (F1) exerts on the cylindrical member a torque which is equal and of opposite direction to the torque exerted by the winding (2b, 2d) formed in the opposite direction (F2). The sum of these torques is at least equal to the maximum design torque to be exerted on the cylindrical member (1), thereby ensuring that the windings acting in opposition to the applied torque are never in compression and that the cylindrical member is under zero torsional stress.

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