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. 21, 2025

Filed:

Oct. 07, 2020
Applicant:

Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;

Inventors:

Tatsunori Shimizu, Shizuoka, JP;

Ryota Suzuki, Shizuoka, JP;

Tomohiro Usami, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62M 6/55 (2010.01); B62M 3/00 (2006.01); F16C 9/02 (2006.01); F16D 41/12 (2006.01); F16D 41/30 (2006.01);
U.S. Cl.
CPC ...
B62M 6/55 (2013.01); B62M 3/00 (2013.01); F16C 9/02 (2013.01); F16D 41/12 (2013.01); F16D 41/30 (2013.01);
Abstract

A drive unit for an electrically assisted bicycle includes a one-way clutch including an inner member linked to an end of a connecting shaft and an outer member linked to a drive sprocket wheel. The inner member includes clutch pawls and a boss. The outer member includes clutch teeth that are able to engage with the clutch pawls and an extension to be coupled to the drive sprocket wheel. The extension includes a recess to accept the boss at an inner member side thereof. The recess has an inner peripheral surface that is able to slide against an outer peripheral surface of the boss.


Find Patent Forward Citations

Shimizu, Tatsunori. (2025). Drive unit and electrically assisted bicycle (U.S. Patent No. 12202571). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12202571

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…