Rack and pinion gearing
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsKo Namiki, Tokio Iguchi, Fumio Haga, Masanobu Ishikawa
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Abstract
A rack and pinion gearing comprising a helical rack and a spiral pinion. The rack has a structure defined by a radius, a distance from the axis to tooth crest, a helix angle, and a pressure angle determined from the viewpoint of applied kinematics so as to produce a balancing moment of rotation. The structure keeps the rack free from inclination and rocking about the axis which would otherwise result in a biting effect.
Claims3
A rack having a substantially cylindrical body, and pinion gearing comprising a helical rack and a spiral pinion, wherein said helical rack meets the following relation:
- ##EQU9## where, L.sub.k =the radius of said helical rack,
- R.sub.k =the distance from the axis to the tooth crest of said helical rack,
- .beta.=the helix angle of the gear-teeth of said helical rack, and
- .alpha..sub.n =the pressure angle of the gear-teeth of said helical rack.
Dependencies are inferred from the claim text.