Title:
ELECTRIC DEVICE FOR BICYCLE
Document Type and Number:
Japanese Patent JP2014144768
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a light-weight electric device for a bicycle.SOLUTION: An electric device for a bicycle comprises a casing 10, a pedal shaft 20, a motor shaft 40, a rotor assembly 51, a stator assembly 52, a gear assembly 60, a chain wheel 70, and a control device 80. A perpendicular of a circuit board 81 of the control device is arranged in parallel with the motor shaft so that the circuit board can be arranged adjacent to the side face of the rotor assembly in the axial direction and detect the rotor assembly. A single circuit board detects the rotor assembly and maintains the electrical connection with other components, thereby saving the space and reducing weight of the casing. Since weight of the casing is reduced, interference with the rear wheel can be avoided.
Inventors:
YO RITSUWA
Application Number:
JP2014006996A
Publication Date:
August 14, 2014
Filing Date:
January 17, 2014
Export Citation:
Assignee:
YO RITSUWA
International Classes:
B62M6/55
Domestic Patent References:
| JP2003104277A | 2003-04-09 | |||
| JP2011255841A | 2011-12-22 | |||
| JP2011207362A | 2011-10-20 | |||
| JPH115584A | 1999-01-12 | |||
| JPH10185715A | 1998-07-14 | |||
| JP2012030679A | 2012-02-16 | |||
| JP2012201134A | 2012-10-22 | |||
| JPH10511621A | 1998-11-10 |
Foreign References:
| GB2312403A | 1997-10-29 | |||
| WO2011088722A1 | 2011-07-28 |
Attorney, Agent or Firm:
Moriya Kazuo
Hiromichi Watabe
Hiromichi Watabe