Activating device for an auxiliary electric motor for a bicycle has a chain wheel and drive pulley with an activation or switching pulley pulled away from activation pins dependent on the force applied to the pedals

摘要

Device for activating an auxiliary motor of an electric bicycle has a chain wheel (20), a drive pulley (30), a multiplicity of activation pins (60) and limiting projections (23). To activate the motor switch an activation pulley (70) is withdrawn from the activation pins in an outwards direction.