Patent ID: 6260654
Filing Date: 2001-07-17
Classification: B62D,F16H

Abstract:
A frictional transmission, comprising:an input rotary shaft and an output rotary shaft arranged in directions in which respective central axes thereof cross substantially at a point (O);an input roller supported coaxially with said input rotary shaft for rotating with said input rotary shaft;an input frictional surface provided on the input roller coaxially with said input rotary shaft;an output disc supported coaxially with said output rotary shaft for rotating with said output rotary shaft;an output frictional surface provided on said output disc coaxially with said output rotary shaft,a supporting member rotatably supporting said output disc and supported by said output rotary shaft to be rotatable therewith and movable axially along said output rotary shaft;an idler disc disposed such that said input roller is sandwiched between said output disc and said idler disc;a holding member rotatably supporting said idler disc; anda loading cam device arranged in a torque transmitting path from said input rotary shaft to said output rotary shaft and generating a thrust force depending on an input torque to press said input frictional surface of said input roller and said output frictional surface of said output disc against each other during transmission of rotation from said input rotary shaft to said output shaft.