FIELD: transportation.
SUBSTANCE: drive sprocket in which the distance from the rotation axis to the tooth onto which the chain is currently entering is determined by the condition R = r + 44.07n2.12 - |r sin α|, where r is the radius of the original round sprocket; n - is the number of the tooth onto which the chain enters at a given time; α - the angle in radians, between the line connecting the tooth of the driven sprocket, from which the chain is leaving at the given time, and the tooth of the drive sprocket, onto which the chain is currently entering, and the pedal rod on which the cyclist presses.
EFFECT: increased efficiency of the drive.
2 cl, 3 dwg
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