| 摘要 |
PROBLEM TO BE SOLVED: To provide a circulating implement for a bathtub enhancing reliability in checking hot water remaining in the bathtub by a water heater. SOLUTION: A valve mechanism part 20 moving a valve element 22 by the resultant force of a shape memory alloy spring 23 and a facing bias spring 24 is arranged in a circulating implement body including a return passage 17 communicating with a suction port 9 from the bathtub 2 while a return port 19 communicating with a bath heating means 3 is opened to the circulating implement body. The valve mechanism part includes inflow ports 26 opened to serve for communication between the shape memory alloy spring 23 side of the valve mechanism part 20 and a forward passage 15; a high temperature outflow port 27 opened to serve for communication between the valve mechanism part 20 and a discharge passage 16 and blocked with a valve element 22 when the temperature of hot and cold water flowing in from the inflow port 26 is low; and a low temperature outflow port 28 opened to serve for communication between the valve mechanism part 20 and the return passage 17 and blocked with the valve element 22 when the temperature of hot and cold water flowing in from the inflow port 26 is high. The suction port 9 is provided in a height position lower than the return port 19. COPYRIGHT: (C)2011,JPO&INPIT
|
