| 摘要 |
<p>An auxiliary device driving unit driven by an engine comprises an input member fixed to a crank shaft of the engine and provided with a disc-like portion and a cylindrical portion, an output member placed opposing the disc-like portion in a freely rotatable manner, the output member having the same axial center as the cylindrical portion of the input member, a plurality of planet cone members in a conical shape which are supported by the outer peripheries of the input and output members through partial contact, a speed change ring which is in contact with the cone generatrix of said planet cone members and is movable along the same axial center line as the input member, a speed change shaft having a feeding means for controlling movement of the speed change ring in the axial direction, a motor for rotating the speed change shaft, an electric circuit for controlling the motor, a driven member which is coupled to the output member through a ball cam and is rotatable on said cylindrical portion of input member and a crank pulley fixedly supported by the driven member.</p> |
