| 摘要 |
<p>A gear box 30 includes a mission case 80 in which a gear chamber 88 for storing oil 105, and a breather chamber 90 separated from the gear chamber 88 by a partition 92 and located above the gear chamber 88 are formed. The partition 92 has a breather chamber entrance 94 formed therein for communicating the gear chamber 88 and the breather chamber 90 to each other. The partition 92 of the mission case 80 has a first rib 110 and a second rib 115 formed thereon. The first rib 115 is located rearward to the breather chamber entrance 94 and at least partially located above a first main gear 75.</p> |
