A damping transmission device includes a driving shaft, a driven shaft and a first and a second transmission mechanism. The driving shaft drives the driven shaft to rotate via alternating operation of the first and second transmission mechanisms. The first transmission mechanism is a low-torque, high-speed transmission mechanism including a first driving wheel, a first driven wheel diametrically smaller than the first driving wheel, and a first transmission element wound on the first driving and driven wheels. The second transmission mechanism is a high-torque, low-speed transmission mechanism including a second driving wheel, a second driven wheel diametrically larger than the second driving wheel, and a second transmission element wound on the second driving and driven wheels. The damping transmission device automatically switches between the first and second transmission mechanisms in response to road surface condition and pedaling speed to produce a damping effect, enabling smoother transmission and labor-saving bike pedaling.
DAMPING TRANSMISSION DEVICE
24.05.2018
Patent
Elektronische Ressource
Englisch
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