Patent ID: 6695332
Filing Date: 2004-02-24
Classification: B62M

Abstract:
A forward and backward pedaling bicycle which comprises:a backward driving sprocket 6 which is mounted on a driving shaft 5 for a load driving in forward direction but a no-load driving in backward direction; a forward driving sprocket 7 which is mounted on the driving shaft 5 for a load driving in forward direction but a no-load driving in backward direction, and connects an upward induction sprocket 12 which is installed for a no-load driving on a top of a support part 10 that is placed along the top of the backward driving sprocket 6 and a rearward induction sprocket 16 which is connected to a rearward driving shaft 15 for a no-load driving and is placed at a bottom of the support part 10 that is placed along the lower rear direction of the upward induction sprocket 12 with a driving chain 8; and an auxiliary induction sprocket 17 which is mounted on the rearward driving shaft 15 for a no-load driving, and the forward driving sprocket 7 and the auxiliary induction sprocket 17 are connected by an auxiliary chain in a bicycle driven by the transmission of a driving power of a power sprocket 4 mounted with a pedal 1 to a rear wheel by a chain.