Friction drive mechanism

• US 3,283,614 A
• Filed: 04/10/1963
• Issued: 11/08/1966
• Est. Priority Date: 04/10/1963
• Status: Expired due to Term

• Current Assignee: Lubomyr O. Hewko
• Original Assignee: Lubomyr O. Hewko
• Inventors: Hewko, Lubomyr O.
• Application Number:
  US04/272,157
• Time in Patent Office: 1,308 Days
• US Class Current: 475/195
• CPC Class Codes: F16H 13/06 with members having orbital motion
• CPC Class Codes: F16H 13/10 Means for influencing the pressure between the members

Claims

1. A FRICTION DRIVE PLANETARY UNIT COMPRISING A FIRST MEMBER HAVING AN ANNULAR CONTACT SURFACE, A PAIR OF RELATIVELY AXIALLY MOVABLE SECOND MEMBERS EACH HAVING AN ANNULAR CONTACT SURFACE, A CARRIER, A PLANET HAVING AN ANNULAR CONTACT SURFACE, MEANS SUPPORTING SAID PLANET ON SAID CARRIER FOR ROTATION ABOUT THE PLANET'"'"''"'"'S AXIS AND FOR RADIAL MOVEMENT RELATIVE TO SAID CARRIER, A PORTION OF THE CONTACT SURFACE OF SAID PLANET CONTACTING A PORTION OF THE ANNULAR CONTACT SURFACE OF SAID FIRST MEMBER TO PROVIDE ONLY ONE ROLLING TRACK BETWEEN SAID PLANET AND SAID FIRST MEMBER WHOSE AXIAL WIDTH IS A FUNCTION OF PLANET AND FIRST MEMBER LOAD, A PORTION OF THE ANNULAR CONTACT SURFACE OF SAID PLANET ALSO CONTACTING A PORTION OF THE ANNULAR CONTACT SURFACE OF EACH OF SAID SECOND MEMBERS TO PROVIDE ONLY ONE ROLLING TRACK BETWEEN SAID PLANET AND EACH OF SAID SECOND MEMBERS WHOSE AXIAL WIDTH IS FUNCTION OF PLANET AND SECOND MEMBER LOAD, MEANS OPERATIVELY CONNECTED TO SAID SECOND MEMBERS OPERABLE TO URGE RELATIVE AXIAL MOVEMENT BETWEEN SAID SECOND MEMBERS TO APPLY A LOAD TO SAID CONTACTING SURFACES AND ALL OF SAID ROLLING TRACKS SUFFICIENTLY AXIALLY SPACED RELATIVE TO EACH OTHER TO PREVENT ANY ROLLING TRACK OVERLAP UNDER LOAD SO THAT EACH SAID ROLLING TRACK IS NEVER SUBJECTED TO MORE THAN ONE STRESS CYCLE PER PLANET REVOLUTION.