Patent ID: 9464570
Filing Date: 2016-10-11
CPC Classification: F02B

Claim Text:
1. A crank drive, comprising: a frame; a rocker pivotally mounted at a fixed position on said frame and having a free end opposite said fixed position; a crank mounted in a fixed position on said frame and forming a drive output of the crank drive; a coupler connecting said rocker and said crank, wherein said coupler is articulated at said crank and at said free end of said rocker; said rocker including a remote segment distally from said fixed position at which said rocker is mounted to said frame, said remote segment being inclined by a fixed angle toward said coupler; said rocker forming a toggle-joint-type mechanism with said coupler; a cylinder for driving said crank, said cylinder including a movably mounted piston; and a connecting rod connecting said rocker to said piston by way of articulated connections, wherein an axial movement of said piston causes said rocker to assume an oscillating swinging motion.