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:
Jun. 25, 2013

Filed:

Mar. 17, 2009
Applicant:

Kenyu Takeda, Tokyo, JP;

Inventor:

Kenyu Takeda, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 11/14 (2006.01); G01B 5/24 (2006.01); G01B 13/18 (2006.01); G01N 25/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of detecting an amount of an axis displacement in a power transmission device includes, for each of the rotary shafts of the first and second drive sources, measuring an amount of an axis position variation by using non-contact sensors respectively provided to face the rotary shafts, and detecting an amount of a relative axis displacement of the rotary shaft of the second drive source relative to the rotary shaft of the first drive source on the basis of the amount of the axis position variation between before and after engagement.


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