| 摘要 |
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 the housing, a 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 the cable, the housing provided with a plurality of openings through which the cable moves, the cable wheel being internally toothed for driving engagement with a pinion gear, the pinion being formed in one piece with and at its lower end of a shaft with the pinion being journaled for rotatable movement in the housing, the shaft having relatively larger and smaller diameter regions which make bearing contact with the bearing surface presented by the housing. |
