| 摘要 |
PROBLEM TO BE SOLVED: To provide an intermittent type water-feeding device being smaller than those of conventional water level-adjusting devices and equipped with a high action reliability. SOLUTION: This intermittent type water-feeding device is characterized in that it is constituted by an air tight case 60, a first float part 70 installed at the outside of the air-tight case 60 and opening and closing an air-passing hole 66 of the air-tight case 60, and a second float part 80 installed at the inside of the air-tight case 60 and opening and closing a water-feeding port 62a, in which the air-tight case 60 has an opening at the lower surface of a cube and air-tightly closing the upper and side surfaces, its inside is partitioned as a large volume float chamber 60a and a small volume air chamber 60b with a partitioning wall 64, an outside surface wall 63 at the one side of the float chamber 60a and the partitioning wall 64 with the float chamber 60a of the air-tight case 60 are formed as shorter by a prescribed length from the lower surface, an air-passing groove 60d is formed at its lower surface, a one side outside side wall 65 of the air chamber 60b is formed by further slightly shorter than the partitioning wall 64, an air-passing groove 60d is formed at its lower surface, and the air-passing hole 66 is installed over the float chamber 60a and air chamber 60b. COPYRIGHT: (C)2007,JPO&INPIT
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