Steering rack e.g. external power steering rack, for e.g. passenger car, has rack gear whose teeth are meshed with teeth of pinion, where profiles of individual teeth heads and teeth bases of teeth are formed as smooth curves

摘要

#CMT# #/CMT# The steering rack (1) has a cylindrical steering gear housing (2) for axially and movably supporting a rack gear (3), where teeth (4) of the rack gear are meshed with teeth (5) of a pinion (6). Profiles of individual teeth heads and teeth bases of the teeth are formed as smooth curves. Radii of curvatures of the profiles of the teeth heads and the teeth bases and depths of the teeth are aligned to each other such that a minimized clearance is provided. The pinion is connected with a steering shaft or a shaft of a servomotor in a torque-proof manner. #CMT#USE : #/CMT# Steering rack e.g. electrical, electro-hydraulic or hydraulic power steering rack and external power steering rack, for a motor car e.g. passenger car and commercial motor vehicle (all claimed). #CMT#ADVANTAGE : #/CMT# The profiles of the individual teeth heads and the teeth bases of the teeth are formed as the smooth curves, thus enabling axial torque of the rack gears in an easy manner without risk of undue burdens on the teeth of the rack gears, which are supported by the pinion, and allowing small edge wear of teeth flanks of gearings. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic longitudinal sectional view of a steering rack. 1 : Steering rack 2 : Cylindrical steering gear housing 3 : Rack gear 4, 5 : Teeth 6 : Pinion.