Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1993-08-27
1995-07-25
Aftergut, Jeff H.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156169, 156173, 156242, 156245, 264258, 745941, B65H 8100
Patent
active
054358698
ABSTRACT:
A method for manufacturing a filament wound composite crank arm includes forming unidirectional filament wound first and second elongated rings and a first reinforcement disk having a center hole. A second reinforcement disk having a threaded center hole is made of steel. The first ring is placed in the bottom of a hollow, heated mold. The inserts are placed onto mandrels within the mold so that they reside within the first ring. Resin-impregnated fiber filler is placed into the mold. A strand of resin-impregnated fiber is wound around a special plunger to form a torsion-resistant member comprising an elongate truss framework integrally interposed between two opposing walls of an elongated cylindroid. The second ring is positioned around the torsion-resistant member at one of its edges, and the torsion-resistant member is placed into the mold to become circumscribed by the first ring at its other edge and to surround the inserts. The crank arm is completed by applying pressure to the plunger to cause the resin-fiber filler to fill the remaining void spaces within the mold and thereby bond together all of the components. The crank arm includes two receiving cavities which pass through the holes of the two inserts, for interchangeably connecting the crank arm to other components, the inserts for reinforcing said connections.
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patent: 5215616 (1993-06-01), Fillar
Portion of Article Entitled "Two Wheeler Evolution" by Steven Levin, et. al., Advanced Composites, Jan./Feb. 1993, p. 40.
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