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:
Feb. 01, 2005
Filed:
Feb. 20, 2003
Motoyasu Yamamori, Nagoya, JP;
Osamu Watanabe, Okazaki, JP;
Morihiro Matsuda, Toyota, JP;
Shoichi Shono, Nishikamo-gun, JP;
Akihiro Yanaka, Toyota, JP;
Motoyasu Yamamori, Nagoya, JP;
Osamu Watanabe, Okazaki, JP;
Morihiro Matsuda, Toyota, JP;
Shoichi Shono, Nishikamo-gun, JP;
Akihiro Yanaka, Toyota, JP;
Toyoda Koki Kabushiki Kaisha, Kariya, JP;
Abstract
A transmission ratio variable mechanism () varies a transmission ratio between a steering amount of a steering wheel () and a turning amount of wheels (). The transmission ratio variable mechanism () includes an input shaft () transmitted with a rotational force of the steering wheel (), a housing () unitarily rotating with the input shaft (), an output shaft () connected to wheels side, a motor () fixed in the housing for transmitting the rotation to the output shaft () via a speed reduction device (), and a reverse input blocking device () for always transmitting a rotational output from the motor () to the output shaft () and for always blocking a rotational input from the output shaft () to the motor ().