Motor vehicles – Steering gear – With electric power assist
Reexamination Certificate
2006-06-13
2006-06-13
Johnson, Brian L. (Department: 3618)
Motor vehicles
Steering gear
With electric power assist
C180S443000
Reexamination Certificate
active
07059447
ABSTRACT:
An automotive vehicle steering system has an actuator (12) for steering a wheel (10). A shaft (28) passes axially through the interior of a housing (14) of the actuator and through a rotor tube (56) journaled for rotation within the housing. On the exterior of the housing one end of the shaft is coupled to the wheel. An electric motor (52) within the interior of the housing rotates the rotor tube when the wheel is steered by a steering wheel. An internal screw thread (68) on the rotor tube and an external screw thread (70) on the shaft are operatively coupled by a set (74) of transmission rollers (76) to provide for bi-directional transmission of motion between the rotor tube and the shaft such that rotation of the rotor tube causes the shaft to move axially of the housing to steer the vehicle wheel and axial motion of the shaft due to wheel recovery from a turn rotates the rotor tube.
REFERENCES:
patent: 2683379 (1954-07-01), Strandgren
patent: 3633701 (1972-01-01), LeTourneau
patent: 3823899 (1974-07-01), Currey
patent: 4225148 (1980-09-01), Andersson
patent: 4526053 (1985-07-01), Carson
patent: 4615229 (1986-10-01), Granbom
patent: 4648285 (1987-03-01), Carson
patent: 4694925 (1987-09-01), Roberts
patent: 4773497 (1988-09-01), Carlson et al.
patent: 4841790 (1989-06-01), Williston et al.
patent: 4987788 (1991-01-01), Bausch
patent: 5033566 (1991-07-01), Moretti et al.
patent: 5083626 (1992-01-01), Abe et al.
patent: 5086861 (1992-02-01), Peterson
patent: 5135067 (1992-08-01), Kohata et al.
patent: 5247441 (1993-09-01), Serizawa et al.
patent: 5251135 (1993-10-01), Serizawa et al.
patent: 5299649 (1994-04-01), Sano et al.
patent: 5327986 (1994-07-01), Saita
patent: 5491372 (1996-02-01), Erhart
patent: 5557154 (1996-09-01), Erhart
patent: 5573079 (1996-11-01), Suda et al.
patent: 5595089 (1997-01-01), Watanabe et al.
patent: 5836208 (1998-11-01), Dietrich et al.
patent: 5921344 (1999-07-01), Boyer
patent: 5988311 (1999-11-01), Kuribayashi et al.
patent: 5992258 (1999-11-01), Kawase
patent: 6098479 (2000-08-01), Hoermansdoerfer
patent: 3827039 (1990-02-01), None
patent: 0512591 (1992-11-01), None
patent: WO0071404 (2000-11-01), None
Andonian Brian James
Liubakka Michael Kenneth
Stout Gregory James
Brown Gregory P.
Ford Global Technologies Inc.
Johnson Brian L.
Yeagley Daniel
LandOfFree
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