| 摘要 |
PROBLEM TO BE SOLVED: To provide a water supply passage changeover valve with a structure where water is prevented from leaking from a drain port in a water supply passage changeover valve serving to supply water to a plurality of ice making pans for use in an automated ice making machine of a refrigerator. SOLUTION: When in a water supply passage changeover valve provided in the course of a water supply passage, water flows into a flow passage constructed with a body 1 and a valve 2, a sliding surface for the body 1 and the valve 2 is disposed in the vicinity of portions b, d, and e where static pressure is negative. Gaps 2c, 2d of sliding surfaces located in the vicinity of a lower portion are more increased than those of sliding surfaces located in the vicinity of portions where static pressure is high. Suction force occurring at the lower portion of the static pressure is likely to act on a sealed drain port 1d through the gaps of the sliding surfaces, and hence air is likely to be sucked from the drain port 1d.
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