Fiber-reinforced driveshaft
AssigneeFelten & Guilleaume Carlswerk AG
InventorsHelmut Federmann, Joachim Bausch
Life of this patent
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Abstract
A drive shaft, particularly for motor vehicles, has metallic end members having facing axially inner sections of larger diameter, axially outer sections of smaller diameters and transition sections connecting the inner and outer sections. The end members are, with the exception of small axial lengths of the outer sections, embedded in and surrounded by a tubular shaft member which is constructed by winding a plurality of layers of carbon or glass-fiber roving impregnated with synthetic plastic, onto a lost mandrel and heat-hardening the synthetic plastic.
Claims17
A drive shaft, particularly for motor vehicles, comprising a pair of rotationally symmetrical hollow end members each having an axially inner cylindrical section and an axially outer cylindrical section which are connected by a transition section, the inner and outer section of each end member having different diameters and the transition section having a wall thickness which increases in direction towards the outer section;
- and a tubular shaft member of synthetic plastic material connecting said end members and surrounding said inner section, transition section and all but an end portion of the outer section thereof in mating relationship, said shaft member being reinforced with a plurality of layers of synthetic plastic material--impregnated fiber roving.
Dependencies are inferred from the claim text.