Patent ID: 6167769
Filing Date: 2001-01-02
Classification: F16H,Y10T

Abstract:
A screw mechanism including a shaft to be guided so that reciprocating movement of the shaft is converted into rotary movement around an axis and at the output of the screw mechanism, the shaft comprising a reciprocating rod and a rotatable slide, the rod and slide being aligned axially and each having an axially inwardly facing end region and an opposite outwardly facing end; each of the inwardly facing end regions of the rod and the slide has an axially extending guide surface, the guide surfaces are complementary helically shaped and extend in the axial direction and are so matched to one another as to engage such that reciprocation of the rod causes rotation of the slide around the axis due to the engagement of the helical guide surfaces; an axial abutment on the slide for restricting reciprocating movement of the slide while permitting rotary movement thereof around the axis.