Patent ID: 7121160
Filing Date: 2006-10-17
Classification: B62M,F16H,Y10T

Abstract:
1. A transmission, comprising: an input member; an output member; at least two cam followers; at least two camming devices coupled to and rotatable by said input member, said at least two camming devices each contoured to provide substantially constant linear speed to said output member over a portion of rotation of each of said at least two camming devices; at least two levers each having a fulcrum and each coupled to at least one of said at least two cam followers in a manner that causes said at least two levers to oscillate upon movement of said at least two cam followers, said at least two levers oscillating out of phase; at least one clutching mechanism coupled between said at least two levers and said output member, where oscillation of said at least two levers drives said clutching mechanism causing substantially ripple free rotational movement of said output member; at least two selectively positionable power take-offs, each being coupled to, oscillatable by and moveable along a length of one of said at least two levers, wherein movement of said at least two power take-offs relative to said at least two levers changes the position of said at least two power take-offs relative to a respective fulcrum of said at least two levers such that when said power take-offs are positioned proximate the fulcrums of said at least two levers, rotation of said input member causes oscillation of said at least two levers and zero rotational speed of said output member, the output speed of the output member increasing as the at least two power take-offs are selectively positioned away from the fulcrums.