| 摘要 |
PURPOSE:To surely and effectively supply the lubricating oil splashed up onto the inner surface of the upper case of a crankcase by a transmission gear, to the meshed parts of the gears where load is applied most. CONSTITUTION:The crossing points Q and R of the ribs 85, 86, 87, and 88 which project downward and form apexes are arranged on the inner surface of an upper case 7 which is directly over the meshed parts 5G and 6G of a transmission gear at the fifth and sixth speeds where load is applied, and a large quantity of lubricating oil is supplied from the crossing points Q and R by the meshed parts 5G and 6G, and durability is improved. |
