Machine element or mechanism – Gearing – Interchangeably locked
Patent
1994-03-31
1996-08-06
Vrablik, John J.
Machine element or mechanism
Gearing
Interchangeably locked
F16H 3083
Patent
active
055423108
ABSTRACT:
A transmission apparatus for changing the speed of a driven member relative to the speed of a driving member while providing continuous torque to the driven member. The apparatus includes reducing gears driven by a driving member, annular cam gears in continuous engagement with the reducing gears, and a rotatably mounted hollow drum having a plurality of radially extending apertures each containing a detent arranged for reciprocating movement for engaging an inner cam surface of a corresponding cam gear mounted for rotation about an outer drum surface. A cam member mounted within the drum for reciprocal movement along the drum axis has an outer cam surface for respectively reciprocating the detents between a cam gear engaging position and a disengaged position. The inner cam surface of the cam gears have peak sections and valley sections, and axial movement of the cam member to initiate a gear shift is timed relative to the positions of the peak sections and valley sections on adjacent cam gears.
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The Anchored Corporation
Vrablik John J.
LandOfFree
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