Patent ID: 6012346
Filing Date: 2000-01-11
Classification: B23D,F16H,Y10T

Abstract:
A low vibration motion translation system for converting continuous rotary motion into reciprocating linear motion, comprising:(A) a hollow housing member open at a first end and having means at a second end for receiving an element for reciprocation;(B) a piston member slidably and non-rotatably supported within said housing member, said piston member defining at least in part a central longitudinal opening in one end thereof, said central longitudinal opening in said piston member having a ball driver pocket formed therein, said piston pocket being positioned substantially in a plane perpendicular to the longitudinal axis of said piston member;(C) a counterbalance member slidably and non-rotatably supported within said housing member, said counterbalance member defining at least in part a central longitudinal opening in one end thereof, said central longitudinal opening in said counterbalance member having a ball driver pocket formed therein, said counterbalance pocket being positioned substantially in a plane perpendicular to the longitudinal axis of said counterbalance member;(D) a shaft member rotatably supported in said housing member, said shaft member having a portion thereof exterior of one end of said housing member and having an opposed portion thereof extending slidably within a central longitudinal opening cooperatively formed by said piston member and said counterbalance member, said shaft member having a circumferential ball driver raceway formed in the exterior surface thereof, said raceway being positioned substantially in a plane at an angle to the longitudinal axis of said shaft member; and(E) a substantially diametrically opposed pair of ball drivers, one positioned within said piston pocket and said shaft raceway and one positioned in said counterbalance pocket and said shaft raceway.