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:
Jun. 28, 2016
Filed:
Dec. 16, 2013
Applicant:
Yamaha Hatsudoki Kabushiki Kaisha, Iwata-shi, Shizuoka, JP;
Inventors:
Assignee:
YAMAHA HATSUDOKI KABUSHIKI KAISHA, Shizuoka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62M 6/50 (2010.01); B62M 6/45 (2010.01); B62M 23/02 (2010.01); B62M 6/55 (2010.01);
U.S. Cl.
CPC ...
B62M 6/50 (2013.01); B62M 6/45 (2013.01); B62M 6/55 (2013.01); B62M 23/02 (2013.01);
Abstract
A battery-assisted bicycle includes a driving unit that increases an assist ratio and provides a smooth assist control that does not make a rider feel uncomfortable. The driving unit includes a crankshaft to which pedals are to be connected, a crank rotation detector that detects rotation of the crankshaft, and an assist control stopping unit programmed to stop an assist control in response to the rotation of the crankshaft detected by the crank rotation detector.