Patent ID: 6330835
Filing Date: 2001-12-18
Classification: F16H,F16K,Y10T

Abstract:
A reciprocating scotch yoke drive mechanism connectable to a motor drive shaft, comprising:a yoke member connectable to the shaft which moves said yoke member in a linear reciprocating motion;a guide having at least one slide track configured to defined a reciprocal sliding path for said yoke member;said yoke member has a sliding formation configured for slidingly engaging said at least one slide track;said sliding formation and said at least one slide track having complementary configurations for maintaining alignment of said yoke member during reciprocal sliding motion and for engagement of said yoke member in said at least one slide track under a variety of angular stresses;said sliding formation has a pair of inclined surface portions for securing said yoke member within said at least one slide track;said at least one slide track has inclined surface portions defining said reciprocal sliding path, and configured for complementarily engaging said inclined surface portions of said sliding formation; andsaid engagement between said complementary inclined surface portions of said sliding formation and said slide track providing the only alignment mechanism for said yoke member for reciprocal movement, and;said yoke member includes a socket at one end thereof and said guide includes a bracket diposed on one end of said at least one slide track, said bracket having a groove configured for slidably receiving said socket.