A Novel 3-Speed Rear Hub Bicycle Transmissions with A Gear-Shifting Mechanism
분야
교통/운송/자동차용품
년도
2014
업체명
National Yunlin University of Science & Technology
등록번호
등록일
2014-12-15
This design is a novel 3-speed rear hub bicycle transmission. It provides three forward gears. It consists of a planetary gear mechanism and a gear-shifting mechanism. It possesses unique features of compact size, high efficiency, and excellent durability. It can shift gears when the rear wheel is not rotating. The presented design is suitable for the transmission systems of urban bikes, city bikes, and electric wheel chairs.