One side wheel type transmission

The present invention relates to a side fixed transmissions, in particular, serves to provide a possible transmission to improve the transmission using a planetary gear to secure the one end to the body frame, fixing being fixed one to a vehicle body frame (10) end (110 ), and the other side shaft 100 is composed of the free end 120 of the; And the carrier 210 to rotate the free end 120, an outer circumference of the shaft 100, the planetary gear 220 is rotated can be supported by the carrier 210, to sum value on the outer periphery of the planetary gears 220 and the ring gear 230, and the sun gear 240 meshes value on the inner circumference of the planetary gear 220, the clutch means (250) for rotation selectively passed to the ring gear 230 of the carrier 210 the transmission portion 200 including a; Receiving a driving force from outside and the input unit 300 to rotate the carrier 210; And shift control unit 400 for selectively constraining the rotation of the sun gear 240; And an output unit 500 which outputs the longitudinal power transmission through the hub shell 510 from the ring gear 230; Is fastened fixed to the end of the free end 120, the transmission portion 200, the input unit 300, the transmission controller 400, and the output section 500 is based on the vehicle body frame 10 by being composed of engaging means (600) to limit the separation in the axial direction outside of the shaft 100, a folding bicycle, particularly applicable to transmission in folding bicycle of the source-side wheel type, default handling and storage when to at the same time to occupy a smaller volume than a typical folding bicycle, the bicycle allows for the shift to the multi-stage transmission according to the running condition during the operation, as well as to maximize the comfort of the user, and commercial value of the bicycle. Transmission, a planetary gear, carrier, sun gear and ring gear, a shaft