| 摘要 |
PROBLEM TO BE SOLVED: To provide a traction drive mechanism capable of uniforming surface pressure distribution in mutual contact parts of rollers. SOLUTION: A ring roller 22 is formed with a cavity 26 which is formed along the peripheral direction thereof, is arranged opposingly to the peripheral surface 33 of a pinion roller 23 and is not brought into contact with the peripheral surface 33 of the pinion roller 23. The cavity 26 is sandwiched between the contact parts of the ring roller 22 and the pinion roller 23 in the direction of a rotating shaft. The inner peripheral surface 32 of the ring roller 22 is formed in a shape inclined radially outward to be separated from the peripheral surface 33 of the pinion roller 23 according as a distance to the cavity 26 is shortened with normal force not applied to the contact parts of the ring roller 22 and the pinion roller 23. COPYRIGHT: (C)2009,JPO&INPIT
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