| 摘要 |
A power transmission apparatus includes a first power transmitting member, a second power transmitting member, a synchronizer ring, arranged between the first power transmitting member and the second power transmitting member, a sleeve held at the first power transmitting member, a synchronizer key arranged between the first power transmitting member and the sleeve, and a drag restricting member arranged between the first power transmitting member and the sleeve. A synchronizer ring engaging portion is formed at a side of the drag restricting member facing the second power transmitting member so as to protrude in the radially inward direction, and a drag restricting engagement portion is formed at the outer circumferential surface of the synchronizer ring at a side thereof facing the first power transmitting member, the drag restricting engagement portion being engageable with the synchronizer ring engaging portion.
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