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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 10718425 B1

PDFFull Text
Date of Patent:
Jul. 21, 2020

Filed:

Mar. 29, 2018

Brake device of transmission

Applicant:

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

Inventors:

Takashi Nishioka, Hiroshima, JP;

Tatsuhiko Iwasaki, Hiroshima, JP;

Norio Iwashita, Hiroshima, JP;

Tomotaka Ishizaka, Hiroshima, JP;

Assignee:

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

Attorney:

Alleman Hall Creasman & Tuttle LLP

Primary Examiner:

Mark A Manley

Int. Cl.
CPC ...
F16H 57/04 (2010.01); B60T 5/00 (2006.01); B60T 1/06 (2006.01); F16H 57/10 (2006.01); F16D 65/12 (2006.01); F16H 63/30 (2006.01); F16D 65/853 (2006.01); F16D 67/04 (2006.01); F16D 55/40 (2006.01); F16H 3/66 (2006.01); F16D 65/14 (2006.01); F16D 65/00 (2006.01); F16D 121/04 (2012.01);
U.S. Cl.
CPC ...
F16H 57/0473 (2013.01); B60T 1/062 (2013.01); B60T 5/00 (2013.01); F16D 55/40 (2013.01); F16D 65/122 (2013.01); F16D 65/128 (2013.01); F16D 65/853 (2013.01); F16D 67/04 (2013.01); F16H 57/0423 (2013.01); F16H 57/0424 (2013.01); F16H 57/0484 (2013.01); F16H 57/10 (2013.01); F16H 63/3026 (2013.01); F16D 2121/04 (2013.01); F16H 3/66 (2013.01); F16H 3/666 (2013.01); F16H 2063/3033 (2013.01); F16H 2200/006 (2013.01); F16H 2200/2012 (2013.01); F16H 2200/2043 (2013.01);
Abstract

In a brake device of a transmission, rotation side friction plates are engaged with a cylindrical part of a rotation side holding member, and fixed side friction plates are engaged with a spline part that is provided on an outer peripheral surface of an inner cylindrical part of a fixed side holding member opposed to a cylindrical part of the rotation side holding member. The fixed side holding member includes an inflow oil passage that supplies lubricating oil from the outside to the inside of the radial direction thereof. An annular space communicating with an inflow oil passage is provided on the inside of the cylindrical part of the fixed side holding member. Oil discharge holes supplying lubricating oil, which was flowed into the annular space, to the rotation side and fixed side friction plates are provided on the cylindrical part of the fixed side holding member.

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