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Title:
FRAME STRUCTURE OF BICYCLE
Document Type and Number:
Japanese Patent JP2020142784
Kind Code:
A
Abstract:
To provide a technique for means for returning pedals of a bicycle faster when the pedals are stepped down.SOLUTION: Outer peripheries of a top tube and a down tube constituting a lug type bicycle titanium frame are wound with a thin belt-like carbon material to a required width in one body nearby a head lug that the top tube and down tube cross, and consequently when pedals are stepped down, a bicycle body (frame) tilts and restoring force operates in a direction in which the bicycle body returns quickly from the tilt because of the carbon material wound around the down tube, etc., and united with the titanium tube to improve rotation efficiency of the pedals, etc., thereby leading to speedup.SELECTED DRAWING: Figure 2

Inventors:
ONISHI YOSHINORI
Application Number:
JP2019068705A
Publication Date:
September 10, 2020
Filing Date:
March 05, 2019
Export Citation:
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Assignee:
ONISHI HEAT MAGIC KK
International Classes:
B62K19/02; B62K19/22
Foreign References:
KR20160050583A2016-05-11
US5160682A1992-11-03
CN203237361U2013-10-16



 
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