Patent ID: 6152471
Filing Date: 2000-11-28
Classification: B62M,Y10T

Abstract:
A variable pedal driving device comprising:a chain sprocket mounted on a main shaft, the chain sprocket being engageable with a chain to drive a driving wheel;a first power transmission unit disposed to one side of the chain sprocket, the first power transmission unit including a first disk eccentrically mounted on the main shaft;a second power transmission unit disposed on a side of the chain sprocket opposite to the first power transmission unit, the second power transmission unit including a second disk eccentrically mounted on the main shaft;a first crankshaft coupled to the main shaft;a first slide element slidably mounted on the first crankshaft;a first guide member operatively connected to the first slide element, the first guide member being translatable along a periphery of the first disk;a first pedal operatively connected to the first slide element and slidable with said first slide element;a second crankshaft coupled to the main shaft;a second slide element slidably mounted on the second crankshaft;a second guide member operatively connected to the second slide element, the second guide member being translatable along a periphery of the second disk; anda second pedal operatively connected to the second slide element and slidable with said second slide element.