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Continuously variable transmission system

  • US 5,645,507 A
  • Filed: 10/26/1994
  • Issued: 07/08/1997
  • Est. Priority Date: 03/17/1992
  • Status: Expired due to Fees
First Claim
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1. A continuously variable transmission system comprising:

  • at least two rotary members,a common member mounted on the rotary members,a surface with which the rotary members cooperate, the rotary members being free to rotate about their own axes of rotation and having perimeter regions cooperating with the surface at respective regions of cooperation in such a manner that substantial slippage of each rotary member relative to the surface in a direction parallel to the axis o rotation of the rotary member is prevented,and steering means operative to steer each rotary member about a respective axis,the common member and the surface being mounted for first and second kinds of motion relative to one another, the first kind of motion being relative rotation of the common member and the surface about an axis which is fixed relative to the common member and around which the rotary members are spaced, and the second kind of motion being a different relative motion of the common member and the surface,the steering means being arranged to steer the rotary members to vary continuously the ratio of the amount of the first kind of relative motion of the common member and the surface to the amount of the second kind of relative movement of the common member and the surface.

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