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:
Jul. 05, 2016

Filed:

Feb. 17, 2015
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka-shi, Osaka, JP;

Inventors:

Masafumi Kawakami, Nara, JP;

Munehiro Date, Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62M 6/55 (2010.01); B62M 6/45 (2010.01);
U.S. Cl.
CPC ...
B62M 6/55 (2013.01); B62M 6/45 (2013.01);
Abstract

A power-assisted bicycle is provided to satisfactorily keep torque detection capability while reducing the pedal force of a pedal during pedaling if a battery has run out. A cylindrical human-power transmission memberhaving a magneto-striction generation portionof a torque sensoris disposed on the outer periphery of a crankshaft. A combined force memberfor combining a human driving force and an auxiliary driving force is disposed on the outer periphery of the crankshaft. An auxiliary-driving-force transmission path from a motorto the combined force memberhas a deceleration mechanismthat includes a plurality of reduction gearsandand reduction gear support shaftsand. A one-way clutchfor interrupting a human driving force is disposed between the reduction gearsandand the reduction gear support shaftsand


Find Patent Forward Citations

Kawakami, Masafumi. (2016). Power-assisted bicycle (U.S. Patent No. 9381972). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9381972

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

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