Electric power steering apparatus equipped with worm gear...

Details Electric power steering apparatus equipped with worm gear... Electric power steering apparatus equipped with worm gear...

2007-03-29

2010-02-02

Ridley, Richard W L (Department: 3656)

Machine element or mechanism

Gearing

Teeth

C074S3880PS, C074S409000, C074S425000

Reexamination Certificate

active

07654167

ABSTRACT:
An electric power steering apparatus includes a worm gear mechanism for transmitting the torque generated by an electric motor to a steered road wheel of the vehicle. The worm gear mechanism has a worm gear made of metal and a worm wheel formed of plastic material and meshing with the worm gear. The worm gear has a tooth profile including a dedendum part formed in an involute shape and an addendum part formed in a circular arc shape with a center located on a line of action.

REFERENCES:
patent: 1727046 (1929-09-01), Buch
patent: 3535948 (1970-10-01), Rychlik et al.
patent: 2004-330937 (2004-11-01), None
patent: 2005-16617 (2005-01-01), None

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