Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
May 27, 2008
Patent Application Number
11005777
Date Filed
December 7, 2004
Patent Primary Examiner
Patent abstract
In a motor-driven power steering apparatus for a vehicle in which a worm wheel of a worm gear type speed reduction mechanism is fixed to a pinion shaft of a rack and pinion mechanism, a direction of a torsion angle β of a helical pinion provided in the pinion shaft is set to be opposite to a direction of a tooth lead angle γ of the worm wheel.
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