Electric power steering apparatus

Details Electric power steering apparatus Electric power steering apparatus

2005-02-01

2005-02-01

Morris, Lesley D. (Department: 3611)

Motor vehicles

Steering gear

With electric power assist

C180S443000

Reexamination Certificate

active

06848534

ABSTRACT:
An electric power steering apparatus for a vehicle includes a rack shaft having a rack of gear teeth formed at one end portion thereof and an externally threaded screw formed at a portion thereof excluding the toothed one end portion, a pinion meshing with the rack, a ball-screw mechanism having a nut threadedly engaged with the screw via balls, and an electric motor having a hollow motor shaft extending around the rack shaft and connected to the nut such that an assist torque generated by the electric motor is transmitted from the motor shaft via the nut to the rack shaft. The nut is disposed between the rack and the electric motor. This arrangement ensures that the electric motor and the electric power steering apparatus can be assembled easily and efficiently.

REFERENCES:
patent: 4766970 (1988-08-01), Shimizu
patent: 4800974 (1989-01-01), Wand et al.
patent: 5650701 (1997-07-01), Shimizu et al.
patent: 5927429 (1999-07-01), Sugino et al.
patent: 5971094 (1999-10-01), Joshita
patent: 6000491 (1999-12-01), Shimizu et al.
patent: 6041885 (2000-03-01), Watanabe et al.
patent: 6186268 (2001-02-01), Onodera et al.
patent: 6439339 (2002-08-01), Namgung
patent: 0 279 034 (1988-08-01), None
patent: 0 814 012 (1997-12-01), None

Affiliated with

Also associated with

Rating

Electric power steering apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electric power steering apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric power steering apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3488407