| 摘要 |
PROBLEM TO BE SOLVED: To improve the lubricating performance, by providing oil garters to collect the scraped oil of the gears to two neighboring rotary shafts of at least two rotary shafts respectively, and lubricating the two rotary shafts thereby. SOLUTION: Oil garters 42 are provided between a second rotary shaft 14 and a third rotary shaft 16, and at the upper side of an idler drive gear 28 and a drive bevel gear 36 provided to the rotary shafts 14 and 16. The oil scraped by the idler gear 28 and the drive bevel gear 36 is collected, and fed to a second bearing 24 for the second rotary shaft and the second bearing 32 for the third rotary shaft of the second and the third rotary shafts 14 and 16 respectively. A through hole 50 extending in the axial direction is provided in the second rotary shaft 14, so as to connect the right case 8 side and the left case 6 side at the opposite side. The oil is fed to the first bearing for the second shaft, and the first bearing 22 for the second rotary shaft is lubricated.
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