| 摘要 |
PROBLEM TO BE SOLVED: To provide a fixing structure of a tank cover which can fix the tank cover so as not to be taken off easily and which is hardly exposed to the outside of the tank.SOLUTION: A fixing structure of a tank cover includes: a tank 10 with a through hole 14 formed on the side surface; a bolt 16 having a male screw 16b, with a screw thread formed at least in a part, rotatably and pivotally supported in the through hole 14, and a bolt head 16a being rotatable and connected to the male screw; a hook engagement 18 having a female screw 18b to be screwed with the male screw of the bolt, and a hook 18a with its tip end formed in a hook shape and extending upward from the female screw; and a cover 12 having a hook engaging portion 20 inside thereof for the hook engagement to be engaged and being placed on the tank. The bolt head is arranged outside the tank, and the male screw is arranged passing through the through hole and extending toward the inside of the tank. The bolt head is rotated in one direction to move the hook engagement to the bolt axis direction, thereby engaging the hook of the hook engagement to the hook engaging portion of the cover. |
