Title:
VARIABLE TRANSMISSION GEARING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/188764
Kind Code:
A1
Abstract:
A variable transmission gearing system for a bicycle includes a mainboard (A09) driven by a chain gear (A01), a plurality of cone gears (D03) rotatable on a plurality of shafts fixed on the mainboard (A09) respectively, and a sun gear (A04) rotatable with an input shaft (A10) of a wheel. Also disclosed is a variable transmission gearing system including a sprocket (A01) mounted on a sprocket mount (A02), a cone driver (A03) rotatable with the sprocket mount (A02), a plurality of cone gears (A04) rotatably mounted between the cone driver (A03) and a cone holder (A06), a driven pad (A07a) frictionally engaged and rotatable with the cone gears (A04), a main shaft (A11) rotatable with the driven pad(A07a), and a shifting shaft (A12) frictionally engaged and rotatable with the cone gears (A04).
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Inventors:
LUK KIM LEUNG (CN)
YEUNG YAM HO (CN)
YEUNG YAM HO (CN)
Application Number:
PCT/CN2015/081248
Publication Date:
December 17, 2015
Filing Date:
June 11, 2015
Export Citation:
Assignee:
MEGA UNIT TECHNOLOGY LTD (CN)
International Classes:
F16H3/50
Foreign References:
| US4680985A | 1987-07-21 | |||
| US7273433B1 | 2007-09-25 | |||
| US2066758A | 1937-01-05 | |||
| US20130184115A1 | 2013-07-18 |
Other References:
See also references of EP 3155295A4
Attorney, Agent or Firm:
SHENZHEN TALENT PATENT SERVICE (Building B Lvjing Square6009 Shennan Middle Road,Futian Distric, Shenzhen Guangdong 0, CN)
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