| 摘要 |
PROBLEM TO BE SOLVED: To open or close an oil tank cover without dirtying one's hand on exchanging oil, by providing several protrusive grooves on the side face of the oil tank cover. SOLUTION: Several protrusive grooves 2 are provided on the side face of an oil tank cover 1. In this constitution, when the recessed groove 6 at the inside face of a cover opener 5 is fitted to the protrusive groove 2 at the side face of the oil tank cover 1 on using it, the cover can be easily opened or closed. Accordingly, it is not necessary to wash hands at every time of oil exchange and hence one can continue working or cooking. |
