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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 11794710 B1

PDFFull Text
Date of Patent:
Oct. 24, 2023

Filed:

Dec. 06, 2018

Electric parking brake device

Applicant:

Nissin Kogyo Co., Ltd., Tomi, JP;

Inventor:

Koji Usui, Tomi, JP;

Assignee:

Hitachi Astemo, Ltd., Ibaraki, JP;

Attorneys:

Carrier, Shende & Associates P.C.

Fulchand P. Shende

Joseph P. Carrier

Primary Examiner:

Thomas J Williams

Int. Cl.
CPC ...
B60T 13/74 (2006.01); F16D 51/22 (2006.01); F16D 65/22 (2006.01); D07B 1/06 (2006.01); F16H 25/20 (2006.01); B60T 1/06 (2006.01); F16D 121/24 (2012.01); F16D 125/40 (2012.01); F16D 125/58 (2012.01); F16D 125/60 (2012.01);
U.S. Cl.
CPC ...
B60T 13/746 (2013.01); B60T 13/741 (2013.01); D07B 1/06 (2013.01); F16D 51/22 (2013.01); F16D 65/22 (2013.01); F16H 25/20 (2013.01); B60T 1/067 (2013.01); F16D 2121/24 (2013.01); F16D 2125/40 (2013.01); F16D 2125/582 (2013.01); F16D 2125/60 (2013.01); F16H 2025/2031 (2013.01); F16H 2025/2075 (2013.01); F16H 2025/2081 (2013.01);
Abstract

In an electric parking brake device configured in such a way that a parking brake state resulting from pulling of a brake cable is released by loosening the brake cable, the brake cable is formed by twisting together a plurality of wires in such a way as to generate a twisting force in a fixed direction when pulled, and the direction in which the twisting force generated by the brake cable in a pulled state acts on a screw shaft is set to be the same direction as the direction in which a nut is rotated to loosen the brake cable. This makes it possible to reduce an operating sound and to reduce wear of members constituting a rotation restricting device.

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