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:
Sep. 06, 2016
Filed:
Mar. 08, 2012
Masafumi Kawakami, Nara, JP;
Masafumi Kawakami, Nara, JP;
Abstract
An electric bicycle is provided that can increase the diameter of the joining section between a crankshaft and a crank arm, suppress an increase in manufacturing cost, and minimize a size increase of a hanger with a torque sensor disposed in the hanger. A crankshaftis divided into a crankshaft bodyA on the periphery of which a torque sensoris disposed, and an auxiliary crankshaftB connected to one side of the crankshaft bodyA. A diameter Dof the joining section between the auxiliary crankshaftB and a crank armB and a diameter Dof the joining section between the crankshaft bodyA and a crank armA are larger than a diameter Dof the connecting section between the crankshaft bodyA and the auxiliary crankshaftB.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile