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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 10655694 B1

PDFFull Text
Date of Patent:
May. 19, 2020

Filed:

Mar. 28, 2018

Friction engagement device of automatic transmission

Applicant:

Mazda Motor Corporation, Aki-gun, Hiroshima, JP;

Inventors:

Shinya Okumura, Hiroshima, JP;

Kazuyuki Shiino, Hiroshima, JP;

Hirokazu Kouno, Hiroshima, JP;

Masanori Sasaki, Hiroshima, JP;

Masamichi Fujikawa, Hatsukaichi, JP;

Yasuo Miura, Hiroshima, JP;

Masashi Morihiro, Hiroshima, JP;

Takeyuki Tanaka, Hiroshima, JP;

Yuya Takemura, Yamaguchi, JP;

Assignee:

Mazda Motor Corporation, Aki-gun, Hiroshima, JP;

Attorney:

Alleman Hall Creasman & Tuttle LLP

Primary Examiner:

Stacey A Fluhart

Int. Cl.
CPC ...
F16D 65/12 (2006.01); F16D 23/14 (2006.01); F16D 13/64 (2006.01); F16D 55/36 (2006.01); F16D 67/02 (2006.01); F16D 69/04 (2006.01); F16H 57/00 (2012.01); F16D 13/68 (2006.01); F16D 25/0638 (2006.01); B23K 11/20 (2006.01); F16D 65/02 (2006.01); F16D 69/00 (2006.01); B23K 103/20 (2006.01); F16D 55/40 (2006.01); F16D 25/10 (2006.01);
U.S. Cl.
CPC ...
F16D 65/123 (2013.01); F16D 13/644 (2013.01); F16D 13/648 (2013.01); F16D 13/683 (2013.01); F16D 23/14 (2013.01); F16D 25/0638 (2013.01); F16D 55/36 (2013.01); F16D 67/02 (2013.01); F16D 69/04 (2013.01); F16H 57/0025 (2013.01); B23K 11/20 (2013.01); B23K 2103/20 (2018.08); F16D 25/10 (2013.01); F16D 55/40 (2013.01); F16D 65/125 (2013.01); F16D 65/127 (2013.01); F16D 2065/1324 (2013.01); F16D 2065/1372 (2013.01); F16D 2065/1376 (2013.01); F16D 2069/005 (2013.01); F16D 2069/009 (2013.01); F16D 2069/0458 (2013.01); F16D 2200/003 (2013.01); F16D 2200/0008 (2013.01); F16D 2250/0076 (2013.01); F16D 2300/12 (2013.01);
Abstract

A friction engagement device of an automatic transmission is provided, which includes a rotational member comprised of at least one of a drum member and a hub member including a spline part engaged with a friction plate to be movable in axial directions of the automatic transmission, and a drive force transmitting part for exchanging a drive force with another rotational element. The drive force transmitting part of the rotational member is made of a ferrous metal. A part of the rotational member other than the drive force transmitting part is made of a clad material containing a first material that is easily joined to the ferrous metal and a second material that is less easily joined to the ferrous metal compared to the first material and weighs less than the ferrous metal.

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