| 摘要 |
PURPOSE:To prevent sucking of air from a supply port when the oil surface is inclined. CONSTITUTION:A supply port 13 is opened near the bottom of a tank main body 11 for storing operation oil F and three partition boards 14, 15, 16 are arranged in the inside of the tank main body 11 in such a state as almost parallel to the oil face 0o in the case an operation oil F for storing in the tank main body 11 is tranquil and an aperture part 17 is left between a side wall 11a in the side where the supply port 13 is opened and the tank main body wall. Straight lines L1, L2, L3 which connect edge parts 14a, 15a, 16a faced to the aperture part 17, to the aperture of the supply port 13 are arranged into a plurality of stages at a prescribed interval in such a state as being located lower than the maximum slant oil surfaces S1, S2, S3 of the stored operation oil F. |
