| 摘要 |
PROBLEM TO BE SOLVED: To improve the usability by a user by confirming the fuel in a tank 11 from an oil level window 12 even when the fuel is supplied in a dark place. SOLUTION: The oil level window 12 has light accumulating function. As a light emitting means 27 is mounted on a proper part of an accommodating part of the tank 11 to supply the light to the oil level window 12 having the light accumulating function, when the tank 11 is loaded on an oil pan 21, the light is accumulated in the oil level window 12, when the tank 11 is loaded on the oil pan 21. Whereby risks of overflowing and spilling-out of the fuel in the tank 11 in a full state, can be reduced, as the user can confirm the fuel in the tank 11 from the oil level window 12 by the light accumulated in the oil level window 12, even when the oil is supplied in a dark place, and the usability can be remarkably improved. COPYRIGHT: (C)2005,JPO&NCIPI
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