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:
Apr. 29, 2014
Filed:
Aug. 17, 2011
Masahiro Kuroki, Saitama, JP;
Kentaro Ikegami, Saitama, JP;
Masahiro Kuroki, Saitama, JP;
Kentaro Ikegami, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A power-assisted bicycle with an auxiliary power unit that improves positional stability of a torque sensor and inhibits the position of the sensor from being misaligned, wherein the power-assisted bicycle includes an annular hollow member inserted over an outer periphery of a crankshaft and a one-way clutch disposed on the hollow member for transmitting, when a pedaling torque in a direction in which the power-assisted bicycle traveling in a forward direction, is applied to the crankshaft, and wherein a magnetic film is formed in a recess disposed in an outer periphery of the hollow member, and a magnetostrictive torque sensor is positioned and fixed by a support member for rotatably supporting the magnetostrictive torque sensor relative to the annular hollow member at both ends of the recess, such that the magnetostrictive torque sensor faces the magnetic film in the recess.