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Patent Searching and Data


Title:
ROTATION ASSISTANCE MECHANISM
Document Type and Number:
WIPO Patent Application WO/2017/154873
Kind Code:
A1
Abstract:
[Problem] The present invention makes it possible to add momentum to the rotation of a wheel and to reduce the labor of depressing the pedals, and to reduce the weight and cost of a bicycle. [Solution] The present invention is provided with: a variable magnetic part 210 having a pair of magnetic bodies 215, 213 in which opposite polarities are disposed facing each other; a magnetic body drive unit 220 for varying the distance between the pair of magnetic bodies 215, 213 at a prescribed cycle by the rotation of the rear wheel 13; a shielding part 230 having a pair of magnetic surfaces 234 that have the same polarity as the polarity of the pair of magnetic bodies 215, 213; and a shielding drive unit 240 for inserting the shielding part 230 between the pair of magnetic bodies 215, 213 at a timing such that the distance between the pair of magnetic bodies 215, 213 is shortened in conformance with the prescribed cycle, and retracting the shielding part 230 from between the pair of magnetic bodies 215, 213 at a timing such that the distance between the pair of magnetic bodies 215, 213 is extended.

Inventors:
NAKAMURA Kazuhiko (164-11, Mutsukawa 2-chome Minami-ku, Yokohama-sh, Kanagawa 66, 〒2320066, JP)
Application Number:
JP2017/008919
Publication Date:
September 14, 2017
Filing Date:
March 07, 2017
Export Citation:
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Assignee:
NAKAMURA Kazuhiko (164-11, Mutsukawa 2-chome Minami-ku, Yokohama-sh, Kanagawa 66, 〒2320066, JP)
International Classes:
F16H49/00; B62M6/00
Domestic Patent References:
WO2014034570A12014-03-06
WO2014109268A12014-07-17
Foreign References:
JPS6231364A1987-02-10
JPS57140961A1982-08-31
Other References:
See also references of EP 3276211A4
Attorney, Agent or Firm:
SASAKI Atsurou (Yokohama Patent Attorneys Office, KN Nihon-Odori Bldg. 3F 14, Nihon-Odori, Naka-ku, Yokohama-sh, Kanagawa 21, 〒2310021, JP)
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