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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 9933032 B1

PDFFull Text
Date of Patent:
Apr. 03, 2018

Filed:

Aug. 12, 2013

Eddy-current retarding device

Applicant:

Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;

Inventors:

Hiroyuki Yamaguchi, Tokyo, JP;

Kenji Imanishi, Tokyo, JP;

Yasutaka Noguchi, Tokyo, JP;

Takashi Futaba, Tokyo, JP;

Assignee:

NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;

Attorney:

Clark & Brody

Primary Examiner:

Bradley T King

Assistant Examiner:

Stephen M Bowes

Int. Cl.
CPC ...
H02K 49/04 (2006.01); F16D 65/18 (2006.01); B60L 7/06 (2006.01); F16D 55/22 (2006.01); F16D 63/00 (2006.01); H02K 49/10 (2006.01); B60L 7/28 (2006.01); F16D 55/225 (2006.01); F16D 65/84 (2006.01); F16D 66/00 (2006.01); F16D 65/853 (2006.01); F16D 121/18 (2012.01);
U.S. Cl.
CPC ...
F16D 65/18 (2013.01); B60L 7/06 (2013.01); B60L 7/28 (2013.01); F16D 55/22 (2013.01); F16D 55/225 (2013.01); F16D 63/00 (2013.01); F16D 63/002 (2013.01); F16D 65/84 (2013.01); F16D 65/853 (2013.01); F16D 66/00 (2013.01); H02K 49/043 (2013.01); H02K 49/046 (2013.01); H02K 49/10 (2013.01); B60L 2200/18 (2013.01); B60L 2200/44 (2013.01); F16D 2066/001 (2013.01); F16D 2121/18 (2013.01); Y02P 90/60 (2015.11); Y02T 10/641 (2013.01);
Abstract

This eddy-current retarding device includes: a magnet holding member that is coaxially provided to a rotating shaft and holds plural permanent magnets in a circumferential direction; a brake member that includes paired disk portions disposed on both sides of the magnet holding member in the axial direction of the rotating shaft, a connecting portion that connects the paired disk portions, and an eddy-current generating portion that causes eddy current due to rotation of the permanent magnets, and this brake member being supported in a relatively rotatable manner with respect to the rotating shaft; and a friction brake that causes a friction member to press against the brake member at the time of braking to bring the brake member to a stop.

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