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:
Jun. 19, 2007
Filed:
Oct. 23, 2006
Toshihiko Aoki, Anjo, JP;
Takuya Fujimine, Anjo, JP;
Minoru Todo, Anjo, JP;
Kazuhisa Ozaki, Anjo, JP;
Hirofumi Ota, Toyota, JP;
Akira Hoshino, Nishikamo-gun, JP;
Atsushi Tabata, Okazaki, JP;
Akiharu Abe, Toyota, JP;
Masafumi Kinoshita, Toyota, JP;
Atsushi Honda, Seto, JP;
Kazutoshi Nozaki, Aichi-gun, JP;
Toshihiko Aoki, Anjo, JP;
Takuya Fujimine, Anjo, JP;
Minoru Todo, Anjo, JP;
Kazuhisa Ozaki, Anjo, JP;
Hirofumi Ota, Toyota, JP;
Akira Hoshino, Nishikamo-gun, JP;
Atsushi Tabata, Okazaki, JP;
Akiharu Abe, Toyota, JP;
Masafumi Kinoshita, Toyota, JP;
Atsushi Honda, Seto, JP;
Kazutoshi Nozaki, Aichi-gun, JP;
Aisin AW Co., Ltd., Anjo, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
In a hydraulic servo for a clutch, a cancel plate is disposed on a second clutch drum that undergoes the same rotation as a second clutch drum provided with a cylinder portion, in such a fashion that the cancel plate is restricted from moving to a side opposite from a return spring in an axial direction. The first clutch drum is disposed, as a separate member, on the second clutch drum. A step portion of the second clutch drum prevents the first clutch drum from moving to a side opposite from the cancel plate. Due to the spring force of the return spring, the oil pressure in the cancel oil chamber and the oil pressure in the operating oil chamber, the force that presses the first clutch drum to the step portion is always greater than the force that presses the first clutch drum to the cancel plate side.