Helical spring uses a filament wire structure with a cladded core coiled around the spring axis giving high resistance to fatigue and a low mass weight

摘要

To produce a helical spring, with coils around a center axis (6), a composite fiber material is used with the fibers oriented to give a resistance against a unidirectional center shearing and peripheral torque by the use of a cladding (3) around a center core (2) e.g. of glass fibers, on the axis (1) of the spring wire filament (12) structure. The cladded filament, forming the spring wire, can be extruded or molded.