Worm pinion of vehicle steering system has fiber-reinforced main body and unreinforced teeth made of same plastic

摘要

The main body (2) is made of a first plastic; the toothed (3) section (4) of a second. Both plastics are of equivalent composition, excepting that the first includes reinforcing fibers. An Independent claim is included for the method of manufacture in the form described, both plastics being injection-molded.