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Continuously variable transmission

  • US 7,871,353 B2
  • Filed: 06/11/2008
  • Issued: 01/18/2011
  • Est. Priority Date: 12/09/2005
  • Status: Active Grant
First Claim
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1. An axial force generation (AFG) mechanism for a transmission, the AFG mechanism comprising:

  • a traction ring having a first side, a middle portion, and a second side, wherein the first side comprises a set of ramps and wherein the second side comprises a traction surface;

    a torsion spring having a first end and a second end;

    wherein the middle portion of the traction ring comprises a recess adapted to receive the torsion spring;

    a load cam roller retainer having a retainer extension adapted to cooperate with the recess of the traction ring for substantially housing the torsion spring;

    wherein the retainer extension comprises a slit for receiving the second end of the torsion spring.

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