| 摘要 |
PURPOSE:To provide a compact rotation transmission device having together a differential function and the absorption function for a rotational difference. CONSTITUTION:A roller 9 is fabricated in a holder 6 fixed to the inside of an outer wheel 1, and both the sides of the roller 9 are nipped with a pair of input shafts 10 and 11. A cage 25 is provided between output shafts 12 and 13 inserted in both the sides of the respective input shafts and the outer wheel 1, and rollers 27 and 28 engaged between the outer wheel and the output shafts are assembled in the pocket of the cage. The cage 25 and the output shafts 12 and 13 are connected with a pin 19, and a rotation direction gap is provided on the connection part of the pin and the output shafts. The excessive rotation of the outer wheel than the rotation of the output shafts causes the rotation of the cage 25 by the part of the gap in the connection part to the output shafts via an input shaft, and the rollers are engaged to transmit the driving force of the outer wheel to the output shafts. The increase of one side rotation and the reduction of the other side rotation of the output shafts 12 and 13 to the outer wheel, causes the racing condition of a high-speed side output shaft, and the roller 9 is rotated by the rotation of the output shaft via the input shaft to delay the rotation of a low-speed side input shaft. This separates both the output shafts and the outer wheel.
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