Abstract: An auxiliary device for a bicycle is disclosed. The auxiliary device includes a pair of thrusting members and a drive mechanism pivotally coupled between the thrusting members and the bicycle. The thrusting members positioned at two sides of the bicycle in a one-up-one-down manner, so that the thrusting members normally abut against a cyclist's back thigh muscles. The drive mechanism has two first pivots, a second pivot and a linkage system so as to make the thrusting members thrust the cyclist's back thigh muscles when the cyclist treadles the treadles. Thereby, the auxiliary device is useful to reduce burden bore by the cyclist's front thigh muscles and shank muscles, and can use the kinetic energy generated by the cyclist's back thigh muscles to enhance the cyclist's riding speed and endurance.

Abstract: A manual mechanical leg-stepping power generating apparatus includes a leg pedal installed separately on both left and right sides of a seat pole of a bicycle, moved up and down at a position adjacent to a rider's thigh muscle, and coupled to a connecting shaft through a leg pedal link rod. Another side of the connecting shaft is coupled to a power generator shaft on the seat pole by using a support rod. The leg pedals are moved up and down alternately to drive a power generator installed in a power generator to generate electric power. When a rider rides the bicycle, kinetic energy is generated by a force applied by the rider's thigh onto the leg pedals and converted into electric energy by the leg pedals, power generator shaft and the power generator set, such that the electric energy can be supplied for the use by electric devices.

Abstract: A manual mechanical leg-stepping power generating apparatus includes a leg pedal installed separately on both left and right sides of a seat pole of a bicycle, moved up and down at a position adjacent to a rider's thigh muscle, and coupled to a connecting shaft through a leg pedal link rod. Another side of the connecting shaft is coupled to a power generator shaft on the seat pole by using a support rod. The leg pedals are moved up and down alternately to drive a power generator installed in a power generator to generate electric power. When a rider rides the bicycle, kinetic energy is generated by a force applied by the rider's thigh onto the leg pedals and converted into electric energy by the leg pedals, power generator shaft and the power generator set, such that the electric energy can be supplied for the use by electric devices.

Abstract: An auxiliary device for a bicycle is disclosed. The auxiliary device includes a pair of thrusting members and a drive mechanism pivotally coupled between the thrusting members and the bicycle. The thrusting members positioned at two sides of the bicycle in a one-up-one-down manner, so that the thrusting members normally abut against a cyclist's back thigh muscles. The drive mechanism has two first pivots, a second pivot and a linkage system so as to make the thrusting members thrust the cyclist's back thigh muscles when the cyclist treadles the treadles. Thereby, the auxiliary device is useful to reduce burden bore by the cyclist's front thigh muscles and shank muscles, and can use the kinetic energy generated by the cyclist's back thigh muscles to enhance the cyclist's riding speed and endurance.