STEERING DEVICE AND METHOD OF PRODUCING RACK SHAFT

Title:

STEERING DEVICE AND METHOD OF PRODUCING RACK SHAFT

Document Type and Number:

WIPO Patent Application WO/2004/005110

Kind Code:

A1

Abstract:

A rack shaft (110) is formed with a rolling surface (110c) narrower than the width of the rack tooth (110a) on the side of the axis (X) of the rack shaft opposite to the rack tooth, and also formed with a pair of slopes (110b) on both sides of the rolling surface (110c). Further, a cylindrical roller (123) is installed that rolls on the rolling surface (110c) of the rack shaft (110), and a support device (120) is installed that presses the cylindrical roller (123) toward the rack shaft (110); therefore, when a steering force is transmitted from a pinion (103a) to the rack shaft (110), the cylindrical roller (123) rolls on the rolling surface (110c), so that it is possible to allow axial movement of the rack shaft (110) with less resistance force.

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Inventors:

SOMEYA KENJI (JP)
SAEKI TAKEHARU (JP)

Application Number:

PCT/JP2003/007710

Publication Date:

January 15, 2004

Filing Date:

June 18, 2003

Export Citation:

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Assignee:

NSK LTD (JP)
SOMEYA KENJI (JP)
SAEKI TAKEHARU (JP)

International Classes:

B62D3/12; F16H19/04; F16H55/28; (IPC1-7): B62D3/12

Foreign References:

JPS5524262A	1980-02-21
JPH0181373U	1989-05-31
JPS58218339A	1983-12-19
JPH1058081A	1998-03-03
JPH057572U	1993-02-02
JPH04232178A	1992-08-20
JPS57174272U	1982-11-02
JPS5930773U	1984-02-25
JPS61124471U	1986-08-05

Other References: