The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2009
Filed:
Jun. 10, 2005
Yoshiharu Inaguma, Nagoya, JP;
Susumu Honaga, Hoi-gun, JP;
Yoshiharu Inaguma, Nagoya, JP;
Susumu Honaga, Hoi-gun, JP;
JTEKT Corporation, Osaka-shi, JP;
Abstract
A transmission ratio variable mechanism in prior art provided on a steering column needs a spiral cable and hence, not only needs an extra space but is also accompanied by a risk of having a drawback such as the breakage of the cable or the like. A steering wheel shaftand an output shaftare supported in a housingattached to a steering column, to be rotatable on the same axis; first and second sun gearsdifferent slightly in the number of gear teeth are formed on facing end portions of the steering wheel shaft and the output shaft; first and second planetary gearsmeshing with the first and second sun gears are supported on a carrier; and a worm shaftmeshing with a worm wheelconnected rotationally to the carrier is constructed to be rotatable by a motorwhich is provided on the housing in a direction perpendicular to the rotational axis of the steering wheel shaft and the output shaft. Thus, it can be realized to eliminate any spiral cable and to obtain a transmission ratio variable steering devicewhich is space-saving.