Motor vehicles – Steering gear – With electric power assist
Reexamination Certificate
2007-08-13
2010-11-30
Morris, Lesley (Department: 3611)
Motor vehicles
Steering gear
With electric power assist
C180S443000, C180S445000, C180S446000, C280S093514
Reexamination Certificate
active
07841443
ABSTRACT:
There is provided a steering apparatus including a pinion communicating with an operation of a steering member, a rack shaft having a rack meshed with the pinion, and a support yoke resiliently coming into contact with the rack shaft, and being configured to convert rotation of the pinion into movement of the rack shaft in an axial direction in a meshing portion in which the pinion and rack mesh to each other. The steering apparatus comprises a detection unit for detecting a force applied to the support yoke to which a force acting on the meshing portion being transmitted from the rack shaft and a calculation unit for calculating a steering torque applied to the steering member based on the force detected by the detection unit, wherein the pinion and the rack are formed in helical gears.
REFERENCES:
patent: 4766970 (1988-08-01), Shimizu
patent: 5280729 (1994-01-01), Aoki et al.
patent: 5746285 (1998-05-01), Yonezawa
patent: 6301975 (2001-10-01), Chikaraishi
patent: 6422095 (2002-07-01), Shimizu et al.
patent: 7284635 (2007-10-01), Chikaraishi
patent: 7325646 (2008-02-01), Asada
patent: 7540204 (2009-06-01), Harata et al.
patent: 7624653 (2009-12-01), Watanabe et al.
patent: 2003/0178244 (2003-09-01), Namgung
patent: 2005/0016789 (2005-01-01), Asada
patent: 2005/0060994 (2005-03-01), Ooguchi et al.
patent: 2005/0236222 (2005-10-01), Chikaraishi
patent: 2006/0042404 (2006-03-01), Shimizu et al.
patent: 2006/0102416 (2006-05-01), Kojima et al.
patent: 2008/0047775 (2008-02-01), Yamazaki
patent: 2009/0255349 (2009-10-01), Segawa
patent: 0410583 (1991-01-01), None
patent: 8-29709 (1996-03-01), None
patent: 10-104093 (1998-04-01), None
patent: 11-321685 (1999-11-01), None
Mizuno Takahiro
Nakano Shiro
Oka Kunihiro
Adams Tashiana
Jtekt Corporation
Morris Lesley
Oliff & Berridg,e PLC
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