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.:
Date of Patent:
Nov. 22, 2022
Filed:
Apr. 07, 2020
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Mitsuru Toyama, Azumino, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P 3/48 (2006.01); G01P 3/44 (2006.01); G01P 3/487 (2006.01); H02K 11/215 (2016.01); B25J 13/08 (2006.01);
U.S. Cl.
CPC ...
G01P 3/487 (2013.01); B25J 13/088 (2013.01); G01P 3/443 (2013.01); H02K 11/215 (2016.01);
Abstract
An encoder includes a base section, a spindle gear attached to a turning shaft section, a counter-shaft gear configured to mesh with the spindle gear and including a cylindrical gear section, a magnet provided in the counter-shaft gear, and an annular bearing member provided in the base section and configured to support the counter-shaft gear. When a straight line extending along the shaft section is represented as a first axis and a straight line orthogonal to the first axis is represented as a second axis, the magnet is disposed to overlap the bearing member in a plan view from a direction in which the second axis extends.