OIL STORAGE STRUCTURE OF TRANSMISSION CASE

To secure an opening area of a suction port when an oil pan is deformed.SOLUTION: An oil OL storage structure of a transmission case 1 includes: an oil pan 5 which closes a lower opening 41 of the transmission case 1 to form an oil reservoir in a space at a lower part in the transmission case 1; and a strainer 6 in which a suction port 66 of the oil OL is located in the oil reservoir. The suction port 66 of the oil OL is provided facing a bottom wall part 51 of the oil pan 5 and spaced apart from the bottom wall part 51. Protruding parts 56 protruding to the suction port 66 side are formed at the bottom wall part 51 of the oil pan 5. The protruding parts 56 are formed in a direction that traverses the suction port 66 when viewed from the bottom wall part 51 side.SELECTED DRAWING: Figure 1 【課題】オイルパンの変形時に、吸入口の開口面積を確保する。【解決手段】変速機ケース１のオイルＯＬの貯留構造は、変速機ケース１の下部開口４１を塞ぎ、変速機ケース１内の下部の空間にオイル溜まりを形成するオイルパン５と、当該オイル溜まりにオイルＯＬの吸入口６６を位置させたストレーナ６と、を備える。オイルＯＬの吸入口６６は、オイルパン５の底壁部５１と間隔を空けて対向して設けられる。オイルパン５の底壁部５１には、吸入口６６側に突出する凸部５６が形成され、当該凸部５６は、底壁部５１側から見て、吸入口６６を横断する方向に形成されている。【選択図】図１