Machine element or mechanism – Gearing – Interchangeably locked
Patent
1994-07-15
1997-11-25
Ta, Khoi Q.
Machine element or mechanism
Gearing
Interchangeably locked
74372, 74339, 475150, 475152, F16H 308, F16H 338
Patent
active
056899980
ABSTRACT:
A transmission apparatus for changing the speed of a driven member relative to the speed of a driving member for transmitting effectively continuous torque transfer between the members. The apparatus includes cam gears driven by a driving member, driven gears in continuous engagement with the cam gears, and a driven member which journals the driven gears for rotation. One section of the driving member is hollow and has a plurality of radially extending apertures, each containing a reciprocating detent for engaging an inner cam surface of a corresponding cam gear. A shift member mounts within a bore of the driving member and rotates about the longitudinal axis of the driving member to cause the detents to reciprocate between a cam gear engaged position and a disengaged position. By timing the movement of the shift member and the design of the cam surfaces on the cam gears, one cam gear can be simultaneous engaged while another is being disengaged to produce a gear ratio change for transmitting effectively continuous torque transfer between the driving and driven members.
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Evans Paul S.
Ta Khoi Q.
The Anchored Corporation
LandOfFree
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