Variable rack stroke system for vehicle

Details Variable rack stroke system for vehicle Variable rack stroke system for vehicle

2006-12-28

2010-06-29

Dickson, Paul N. (Department: 3616)

Motor vehicles

Steering gear

With fluid power assist

C180S422000, C180S428000, C280S089000, C280S093513, C280S093514

Reexamination Certificate

active

07743873

ABSTRACT:
A variable rack stroke system includes a rack housing in which a rack bar is slidably disposed, a casing attached to the rack housing, an annular rotary member, an annular stationary member, and a switch. The annular rotary member includes grooves on an inner periphery thereof that face each other, and first protrusions protruding from the rotary member in an axial direction that have different thicknesses. The rotational phase of the rotary member is adjusted by the motor. The annular stationary member includes protruding parts on an outer periphery thereof that face each other, configured to be inserted into the grooves, and second protrusions protruding from the stationary member in the axial direction, that have different thicknesses and face the first protrusions. The stationary member is coupled with a ball joint to be coupled with the rack bar. The switch adjusts the rotational phase of the motor.

REFERENCES:
patent: 6578862 (2003-06-01), Park et al.
patent: 6588770 (2003-07-01), Lee
patent: 7438154 (2008-10-01), Lim
patent: 7445080 (2008-11-01), Ryu
patent: 2006/0151235 (2006-07-01), Chikaraishi
patent: 2007/0095597 (2007-05-01), Lim et al.
patent: 0 470 424 (1992-02-01), None
patent: 2001039330 (2001-02-01), None
patent: 20060071782 (2006-06-01), None

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