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. 12, 2018
Filed:
Sep. 30, 2015
Applicant:
Shimano Inc., Sakai, Osaka, JP;
Inventors:
Assignee:
Shimano Inc., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62M 6/55 (2010.01); B60K 17/06 (2006.01); B60L 11/18 (2006.01);
U.S. Cl.
CPC ...
B62M 6/55 (2013.01); B60K 17/06 (2013.01); B60L 11/18 (2013.01);
Abstract
A bicycle assist unit is basically provided with a transmission and an assist motor. The transmission is configured to receive rotation of a crankshaft. The transmission includes a planetary gear mechanism. The planetary gear mechanism includes an output unit, a plurality of ring gears and a rotation restricting mechanism that selectively restricts rotation of the ring gears. The assist motor is configured to output a second drive force that is added to a first drive force that is outputted from the transmission on a power transmission path between the output unit and a front sprocket that is attached to the crankshaft.