| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a power transmission device capable of bringing a pulley which does not need to be driven during an operation of an engine to a stop.SOLUTION: When a crank shaft 3 and a sun gear 21 rotate integrally, a carrier 23 and a second pulley 5 rotate integrally in the same direction as the sun gear 21. Also, an inner ring 25 of a ring gear 24 rotates in the same direction as the sun gear 21. The rotation of the inner ring 25 of the ring gear 24 is transmitted to an outer ring 26 of the ring gear 24 via a one-way clutch 16. As a result, the outer ring 26 of the ring gear 24 and a first pulley 4 rotate integrally in the same direction as the crank shaft 3. In a state where the outer ring 26 of the ring gear 24 is braked, the first pulley 4 stops and the carrier 23 and the second pulley 5 rotate integrally in the same direction as the crank shaft 3. In a state where the carrier 23 is braked, the second pulley 5 stops and the outer ring 26 of the ring gear 24 and the first pulley 4 rotate in the same direction as the crank shaft 3.</p> |
