| 摘要 |
A pair of power rollers which is gripped between an input disk and an output disk and transmits torque by friction, is supported rotatably by a pair of trunnions. The upper ends and lower ends of the trunnions are respectively connected by links, and the power roller is prevented from being driven out from between the input disk and output disk by the grip force. When the trunnions and the power rollers are displaced by the servopistons in the trunnion axis direction in mutually opposite directions, the trunnions and power rollers gyrate around the trunnion axis as pivot, and a speed change will occur. Links are provided with slots which lengthen in the trunnion axis direction, and are supported in the transmission case free to displace in the trunnion axis direction via pins inserted in the slots.
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