Lubricating oil discharge structure for transmission case

This invention discloses a lubricating oil discharge structure for transmission case, which enables the discharge of the lubricating oil is not blocked. The lubricating oil discharge structure for the transmission case is characterized in that a valve body receiving part (30) is positioned under the wheel chamber (20)of the speed change mechanism of the receiving strip type buncher in a gear box (10), and a lubricating oil discharge holes( 11a,11b11c) which discharges the lubricating oil lubricating speed change mechanism are communicated with the receiving part (30) on the boundary wall part (111) between the valve receiving part and the wheel chamber (20). The differential mechanism receiving part (60) of the terminal transmission gear which contains output rotation of the inputted secondary belt wheel is positioned in deviation from the wheel chamber (20) in the rotation axle direction of the end transmission gear (F). A discharge hole (11c) is positioned in the rotation axle direction and in proximity to