Title:
ROTATION DETECTOR FOR BICYCLE
Document Type and Number:
Japanese Patent JP3696190
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To facilitate attaching to a bicycle and adjustment, in a rotation detector for a bicycle using a plurality of magnets.
SOLUTION: This rotation detector 23 for the bicycle for detecting rotation of a left crank 27b rotating with respect to a frame body of the bicycle is provided with a case member 23, the plurality of magnets 24, and a reed switch 25. The case member 23 is a member attachable rotation-incapably to the left crank 27b. The plurality of magnets 24 are arranged, in the case member 23, with a space along a rotational direction to be concentric with a rotation axis X of the left crank 27b. The reed switch 25 is attached to the frame body to be faced to the magnets, and detects magnetic force of the plurality of magnets 24.
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Inventors:
Nori Ichida
Masahiro Yamanaka
Masahiro Yamanaka
Application Number:
JP2002249278A
Publication Date:
September 14, 2005
Filing Date:
August 28, 2002
Export Citation:
Assignee:
SHIMANO INC.
International Classes:
B62J99/00; B62M25/08; G01C22/00; G01P3/487; (IPC1-7): G01P3/487; B62J39/00
Domestic Patent References:
| JP58027770U | ||||
| JP62091261U | ||||
| JP58027770U | ||||
| JP62091261U |
Attorney, Agent or Firm:
Yukio Ono