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:
Jan. 08, 2019

Filed:

Oct. 27, 2016
Applicant:

Tokyo Parts Industrial Co., Ltd., Gunma-ken, JP;

Inventor:

Masahiro Nishidate, Gunma-ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/27 (2006.01); H02K 5/167 (2006.01); H02K 7/08 (2006.01);
U.S. Cl.
CPC ...
H02K 7/081 (2013.01); H02K 7/083 (2013.01); H02K 7/085 (2013.01);
Abstract

A cover member has a cylinder in the center of a cover part. A second sliding bearing is fastened to the cylinder. A rotary shaft protrudes upward from the cylinder without contact with the second sliding bearing. A first sliding bearing is a main bearing, which can radially support the rotary shaft, and the second sliding bearing is an auxiliary bearing which, when the rotary shaft is subjected to a load from the radial direction, bears that load in the radial direction together with the first sliding bearing. When the angle of inclination of the rotary shaft in the first sliding bearing is not maximal, the rotary shaft is supported only by the first sliding bearing, without the rotary shaft contacting the inside of the second sliding bearing. The amount of deformation of the rotary shaft when a load is applied to the rotary shaft from the radial direction and the rotary shaft first makes contact with the second sliding bearing is in a range from 0 to the maximum elastic deformation.


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