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.

Date of Patent:
Jul. 14, 2020

Filed:

Nov. 24, 2016
Applicant:

Mitsubishi Electric Corporation, Chiyoda-ku, JP;

Inventors:

Yutaka Hashioka, Chiyoda-ku, JP;

Reiji Yamasa, Chiyoda-ku, JP;

Kazutoshi Akazawa, Chiyoda-ku, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66B 29/00 (2006.01); B66B 25/00 (2006.01); B66B 31/00 (2006.01); B65G 17/38 (2006.01); F16G 13/06 (2006.01); F16H 7/06 (2006.01); F16H 7/08 (2006.01);
U.S. Cl.
CPC ...
B66B 29/00 (2013.01); B66B 31/00 (2013.01); B65G 17/38 (2013.01); F16G 13/06 (2013.01); F16H 7/06 (2013.01); F16H 2007/087 (2013.01);
Abstract

The chain stretch detection device is configured to detect a stretch of a chain in a power transmission device. The power transmission device includes: a driving sprocket; a driven sprocket; and a chain, which is wound around the driving sprocket and the driven sprocket, and is configured to transmit power of the driving sprocket to the driven sprocket. The chain stretch detection device includes: a meshing height measurement device configured to measure meshing heights of the chain in a range in which the driven sprocket meshes with and the chain; and a signal processing device configured to determine a height difference between adjacent rollers in the chain through use of signals acquired by the meshing height measurement device and estimate an amount of the stretch of the chain based on the determined height difference.


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