Electric power steering device

Details Electric power steering device Electric power steering device

2005-05-10

2005-05-10

Lerner, Avraham (Department: 3611)

Motor vehicles

Steering gear

With electric power assist

C074S3880PS

Reexamination Certificate

active

06889795

ABSTRACT:
An electric power steering device in which a motor shaft and a rack bar form a diagonal intersection. The power transmission includes: a drive gear rotating in tandem with the motor shaft and forming a bevel gear with linearly extending teeth; a ball screw mechanism disposed co-axial with the rack bar and converting a rotational motion to a linear motion; and a driven gear rotating in tandem with a nut of the ball screw mechanism, meshing with and moving in tandem with the drive gear, and forming a bevel gear with linearly extending teeth. The drive gear and/or the driven gear can be adjusted so that backlash between the two elements can be adjusted in a continuous, non-stepped manner.

REFERENCES:
patent: 5445237 (1995-08-01), Eda et al.
patent: 5870928 (1999-02-01), Genter et al.
patent: 6155376 (2000-12-01), Cheng
patent: 6702060 (2004-03-01), Tatewaki et al.
patent: 6705176 (2004-03-01), Ishii et al.
patent: 20040045386 (2004-03-01), Saruwatari et al.
patent: 20040050614 (2004-03-01), Yoshida et al.
patent: WO-03006301 (2003-01-01), None
Patent Abstracts of Japan for JP2000-280923 published on Oct. 10, 2000.
Patent Abstracts of Japan for JP2000-280920 published on Oct. 10, 2000.

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