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:
Apr. 16, 2024

Filed:

May. 17, 2022
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Yoshio Mishima, Matsumoto, JP;

Takumi Oshio, Shiojiri, JP;

Yoshihiro Hidai, Shiojiri, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G04B 37/06 (2006.01); G04B 19/16 (2006.01); G04B 3/04 (2006.01);
U.S. Cl.
CPC ...
G04B 37/06 (2013.01); G04B 19/166 (2013.01); G04B 3/04 (2013.01);
Abstract

A timepiece includes a case including a protrusion protruding inward from an inner wall, a crown including a shaft passing through the side surface of the case, a head provided at one end of the shaft, and a drive wheel provided at the other end opposite from the one end of the shaft, an internal rotary ring provided in a position where the internal rotary ring overlaps with the protrusion in the plan view and having teeth that engage with the drive wheel, and elastic members disposed between the protrusion and the internal rotary ring and each including a convex section that engages with the teeth.


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