F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
74/57
F16H 27/04 (2006.01) D05B 35/06 (2006.01) F16H 35/02 (2006.01) F16H 49/00 (2006.01)
Patent
CA 1272045
ABSTRACT OF THE DISCLOSURE An intermittent drive mechanism includes a pair of non-circular drive and driven gears for translating a constant velocity rotary motion of an input shaft into a non-uniform velocity rotary motion of an intermediate shaft, the latter-mentioned rotary motion having a sinusoidal angular speed pattern, and a harmonie speed reducer drivingly connecting the intermediate shaft to an output shaft which is connected to a flexible spline of the speed reducer. A rigid circular spline of the speed reducer is angularly reciprocated under the control of an eccentric cam on the input shaft in such a manner that the motion of the sinusoidal angular speed pattern is transmitted from the intermediate shaft to the output shaft in a certain decelerated condition only while the intermediate shaft turns through a half of each turn. The motion transmission takes plane gently without causing undesired shock at the beginning and the end of the motion.
540245
Gowling Lafleur Henderson Llp
Ykk Corporation
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