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Continuously variable transmission

  • US 7,166,056 B2
  • Filed: 01/05/2005
  • Issued: 01/23/2007
  • Est. Priority Date: 02/28/2003
  • Status: Expired due to Fees
First Claim
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1. A force generator for a continuously variable transmission, the force generator comprising:

  • a first disc having a threaded bore;

    a first set of ramps coupled to the first disc near an outer diameter of the first disc;

    a plurality of bearings adapted to engage the first set of ramps;

    a second set of ramps, the second set of ramps operably coupled to an outer diameter of a power transfer disc of the transmission and adapted to engage the bearings;

    a rotatable screw adapted to engage the threaded bore;

    a third set of ramps, the third set of ramps operably coupled to the screw; and

    a fourth set of ramps, the fourth set of ramps operably coupled to the power transfer disc and adapted to engage the third set of ramps.

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