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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.:

US 10378615 B1

PDFFull Text
Date of Patent:
Aug. 13, 2019

Filed:

Nov. 30, 2015

Clutch and speed change device including the same

Applicant:

Aisin Aw Co., Ltd., Anjo-shi, Aichi-ken, JP;

Inventors:

Naoya Jinnai, Okazaki, JP;

Masahiro Otake, Nishio, JP;

Shota Ikeda, Anjo, JP;

Minoru Todo, Takahama, JP;

Takuya Nakajima, Toyota, JP;

Assignee:

AISIN AW CO., LTD., Anjo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Erin D Bishop

Int. Cl.
CPC ...
F16H 3/66 (2006.01); F16D 25/0638 (2006.01); F16D 1/10 (2006.01); F16D 13/64 (2006.01); F16D 21/06 (2006.01); F16D 25/10 (2006.01); F16H 45/02 (2006.01); F16D 13/76 (2006.01); F16H 57/10 (2006.01); F16D 13/74 (2006.01); F16D 25/12 (2006.01); F16H 57/08 (2006.01);
U.S. Cl.
CPC ...
F16H 3/663 (2013.01); F16D 1/101 (2013.01); F16D 13/646 (2013.01); F16D 13/76 (2013.01); F16D 21/06 (2013.01); F16D 25/0638 (2013.01); F16D 25/10 (2013.01); F16H 45/02 (2013.01); F16H 57/10 (2013.01); F16D 13/74 (2013.01); F16D 25/123 (2013.01); F16D 2001/103 (2013.01); F16D 2021/0661 (2013.01); F16H 2045/0221 (2013.01); F16H 2045/0284 (2013.01); F16H 2057/087 (2013.01); F16H 2200/0069 (2013.01); F16H 2200/201 (2013.01); F16H 2200/2012 (2013.01); F16H 2200/2023 (2013.01); F16H 2200/2046 (2013.01);
Abstract

A clutch that includes a friction plate; a separator plate; a clutch hub; and a piston that presses the friction plate and the separator plate, wherein the clutch hub includes a hub on which an inner peripheral portion of the friction plate or the separator plate is fitted, a tubular shaft that movably supports the piston, and an engagement oil chamber defining wall that together with the piston defines an engagement oil chamber to which an engagement oil pressure is supplied, the hub is spline-fitted on a gear of a planetary gear so as to rotate with the gear, and the tubular shaft is rotatably supported by a central shaft and is fitted by a spigot joint in the gear.

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