FRONT DRIVE BICYCLE AND DIFFERENTIAL DUAL DRIVE BICYCLE

WIPO Patent Application WO/2016/050041

A1

Disclosed is a front wheel drive bicycle, comprising a flywheel (106) provided on a front shaft (115), a fixing bracket (104) provided on a bicycle frame (101), a first transmission wheel assembly (103) provided on the fixing bracket (104), a second transmission wheel (113) coaxially linked with the first transmission wheel assembly (103) and a second link chain (105), a crank chain wheel (109) being connected in transmission with the first transmission wheel assembly (103) via a first link chain (110), the second transmission wheel (113) via the second link chain (105) being connected in transmission to the flywheel (106) provided on the front shaft (115), and the first transmission wheel assembly (103) being a universal joint type transmission wheel. The above-mentioned front wheel drive bicycle can realize front wheel drive and front wheel steering, and the stable transmission of the link chain during the direction free torsion process of the front wheel is not affected. Further disclosed is a front and rear wheel simultaneous drive differential dual drive bicycle, which, by means of screwing a controller and controlling the action of a friction sheet (208) via a bracing wire, realizes the control and adjustment of the front drive, the rear drive and the dual drive.

ZHANG JINXING (CN)

PCT/CN2015/075141

April 07, 2016

March 26, 2015

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ZHANG JINXING (CN)

B62K19/30; B62M9/02

CN104229041A	2014-12-24
CN2471681Y	2002-01-16
CN203199140U	2013-09-18
CN201849624U	2011-06-01
CN2058901U	1990-07-04
CN202557724U	2012-11-28
US4147370A	1979-04-03
US20090072511A1	2009-03-19

SHIJIAZHUANG XINSHIJI PATENT AND TRADEMARK (CN)
石家庄新世纪专利商标事务所有限公司 (CN)

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