Motor-driven power steering apparatus for a vehicle

Details Motor-driven power steering apparatus for a vehicle Motor-driven power steering apparatus for a vehicle

2004-12-07

2008-05-27

Morris, Lesley D. (Department: 3611)

Motor vehicles

Steering gear

With electric power assist

C180S426000, C180S443000, C074S425000, C074S462000, C074S457000, C074S3880PS, C074S443000

Reexamination Certificate

active

07377355

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.

REFERENCES:
patent: 6000491 (1999-12-01), Shimizu et al.
patent: 6691819 (2004-02-01), Menjak et al.
patent: 6695092 (2004-02-01), Cole
patent: 6817439 (2004-11-01), Gillman et al.
patent: 6854559 (2005-02-01), Kurishige et al.
patent: 6949901 (2005-09-01), Collier-Hallman et al.
patent: 6959781 (2005-11-01), Shimizu et al.
Japanese Patent Application Laid-open No. 2001-278077, Oct. 10, 2001.

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