Steering systems

Claim 1

A steering head assembly comprising a cable wheel rotatably mounted on a depending hub forming a part of a housing being open at its underside to permit attachment of a cable wheel, a back plate covering the base of said housing and attached thereto by attaching means, said cable wheel having helically grooved annular recesses in its periphery adapted to drivingly engage a helical wound cable such that rotation of the cable wheel causes translational movement of said cable, said housing provided with a plurality of openings through which said cable moves, said cable wheel being internally toothed for driving engagement with a pinion gear, said pinion being formed in one piece with and at its lower end of a shaft with said pinion being journaled for rotatable movement in said housing, said shaft having relatively larger and smaller diameter regions which make bearing contact with the bearing surface presented by said housing, said pinion is of larger diameter than said shaft and depends from a shoulder region which abuts the lower end face of a spigot portion of said housing to locate said shaft therein with said pinion in meshing engagement with complementary teeth on said cable wheel.