| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot-water circulation type bath which securely solves potential danger caused when foreign substances, such as the hair or the like, are sucked through a suction opening of a jet bath with a simple structure. SOLUTION: A check valve 3 branches from a hot-water circulation system 2 and installed between a suction opening 11 in the hot-water circulation system 2 which connects the suction opening 11 and an outlet 12 of a bath tub 1 through a circulating pump 21 in the middle and the circulating pump 21, and when foreign substances are sucked into the suction opening 11, the rapid negative pressure of the hot-water circulation system 2 by the constricted or closed suction opening of the check valve 3 operate and introduces air into the hot water circulation system 2, the suctioning pressure of the suction opening 11 is damped/lowered while the circulating pump 21 is operated and the foreign substances can be easily removed. The check valve 3 is installed so as to be separated to the hot water circulation system 2 through a nylon blade hose 25 on the outer surface of the bath tub 1. COPYRIGHT: (C)2006,JPO&NCIPI
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