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:
May. 31, 2005
Filed:
Jun. 18, 2002
Masanori Kobayashi, Nara, JP;
Takeo Iino, Kashiwara, JP;
Akihiko Shiina, Kashihara, JP;
Katsutoshi Nishimura, Yamatotakada, JP;
Ken-ichiroh Aoto, Kashiwara, JP;
Yoshio Itou, Tondabayashi, JP;
Masashi Uota, Yamatokooriyama, JP;
Shoji Shibamura, Kashiwara, JP;
Tetsuya Murakami, Nara, JP;
Hiroyuki Shigemura, Kashiwara, JP;
Masanori Kobayashi, Nara, JP;
Takeo Iino, Kashiwara, JP;
Akihiko Shiina, Kashihara, JP;
Katsutoshi Nishimura, Yamatotakada, JP;
Ken-ichiroh Aoto, Kashiwara, JP;
Yoshio Itou, Tondabayashi, JP;
Masashi Uota, Yamatokooriyama, JP;
Shoji Shibamura, Kashiwara, JP;
Tetsuya Murakami, Nara, JP;
Hiroyuki Shigemura, Kashiwara, JP;
Koyo Seiko Co., Ltd., Osaka, JP;
Abstract
An electric power steering system is provided, which comprises a steering assist electric motor, and a reduction gear mechanism for reducing a rotation speed of a rotatable shaft of the electric motor. The reduction gear mechanism comprises a worm shaft driven by the rotatable shaft, and a worm wheel driven by the warm shaft. The electric power steering system further comprises a joint for coupling the rotatable shaft to the worm shaft for transmission of a driving force. Longitudinally biasing means is provided in association with the joint for longitudinally biasing the worm shaft.