| 摘要 |
PURPOSE:To prevent oil leakage from an air hole sufficiently in a breather for a speed change-gear of a lawn mower for riding in which a communicating hole to a transmission case is connected to a lower part of an oil recovering chamber to separate oil and air from each other, and the air hole communicated with the outside is connected to an upper part, respectively. CONSTITUTION:A lower recovering chamber part 9a having the horizontal cross-sectional area larger than a communicating hole 10 to a transmission case 7 and an upper recovering chamber part 9b having the horizontal cross-sectional area larger than the lower recovering chamber part 9b, are formed in an oil recovering chamber. |
