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. 08, 2009
Filed:
Nov. 16, 2006
Katsuhisa Ishii, Okajoki, JP;
Minoru Todo, Takahama, JP;
Mikio Iwase, Anjo, JP;
Takuya Nakajima, Toyota, JP;
Hirofumi Ota, Toyota, JP;
Kazutoshi Nozaki, Aichi-ken, JP;
Atsushi Honda, Seto, JP;
Masafumi Kinoshita, Toyota, JP;
Katsuhisa Ishii, Okajoki, JP;
Minoru Todo, Takahama, JP;
Mikio Iwase, Anjo, JP;
Takuya Nakajima, Toyota, JP;
Hirofumi Ota, Toyota, JP;
Kazutoshi Nozaki, Aichi-ken, JP;
Atsushi Honda, Seto, JP;
Masafumi Kinoshita, Toyota, JP;
Aisin AW Co., Ltd., , JP;
Abstract
The present invention provides an automatic transmission having a main bearing disposed between the inner surface of a boss portion of a first drum and the outer surface of a cylindrical support, for rotatably supporting the first drum. An auxiliary bearing is press-fit into one end of the interior of the boss portion of the first drum and surrounds the cylindrical support with an annular gap therebetween. The auxiliary bearing contacts the cylindrical support only when the first drum tilts relative to the central axis of the transmission, and has a shorter axial length than that of the main bearing.