| 摘要 |
A V-belt pulley for a variable speed transmission which may be either the driving or the driven pulley, has the connection between the movable plate of the pulley and a drive member secured to the input or output shaft effected by means of a pivotally connected link which serves to increase or decrease the pulley pressure on the belt as required under various conditions and responds to the input torque and the torque resistance at the output, possibly cooperating with the regulating effect given by centrifugal members and springs acting on the movable pulley. When used in connection with centrifugal members at the input end of the transmission, the arrangement has the advantage of avoiding the machining required in keying the movable pulley to the shaft as well as the resulting rigidity of operation. Alternatively, the arrangement avoids the danger of jamming where the centrifugal members themselves are connected in driving relationship with the movable pulley plate.
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