| 摘要 |
PROBLEM TO BE SOLVED: To supply a desired quantity of water at a time without reducing the bulk of a water supply container and ensure firm fixation, but easy separation, of a mesh filter and a filler to an opening of the water supply container without permitting easy detachment therefrom. SOLUTION: A water supply container 44 has an opening with a peripheral wall formed in a stepwise shape directed downwadly to the center and a flange formed at the lower end toward the center, a frame body disposed to be fitted to the stepwise peripheral sidewall about the flange and charged densely with a filler, and a mesh filter 46 placed on the flange so that the frame body charged with the filler is fitted into the stepwise peripheral sidewall on the mesh filter 46. A locking groove is formed in the stepwise peripheral sidewall above the flange of the water supply container 44 and a projection to be fitted to the locking groove is formed on the peripheral sidewall of the frame body. |
