| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem that city water (original water) intrudes from a gap between each valve element and an exclusive circulation port (a valve seat) for a discharge mode and leaks from each of a straight original water discharge port, a shower original water discharge port and a purified water discharge port when the pressure of city water is low in the case of such the conventional technique that a link structure and the bevel-shaped valve element are moved corresponding to the rotation of a camshaft. SOLUTION: When the convex part of each of cams 33, 34, 35 of the camshaft 30 to be rotated is not slid on a projection part 42 of a link 40, a shaft-shaped guide 46 is arranged on one end of the outer peripheral part of the link 40 so that the valve element 45 arranged on the other end of the outer peripheral part of the link 40 can surely close each of valve seats 13, 14, 15 of a changeover valve main body 10 when the pressure of city water is low. A guide receiver 60 for supporting the guide 46 to be slid is arranged in the upper part of the guide 46 and a coil spring 47 for always snapping both of the link 40 and the guide receiver 60 is arranged in the outer peripheral part of the guide 46. COPYRIGHT: (C)2008,JPO&INPIT
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