| 摘要 |
PURPOSE:To enable to supply water normally at a constant pressure irrespectively of the water pressure at a water supplying source, by a method wherein the pressure of water fed into a bath heater by operating a diaphragm is lowered, while the water heated by the bath heater is supplied to a shower head by raising the pressure thereof by a pumping action of a diaphragm. CONSTITUTION:A water-supplying hose 75 and a shower hose 77 are connected respectively to a water inlet 47 and a hot water outlet 74 of a water pressure converter C, and hoses 33, 34 connected to covers B, B' convering upper and lower ejecting ports of a bathtub 1 communicated to upper and lower parts of the bath heater 2 are connected to a hot water inlet 35 and a water outlet 36 of the pressure converter C. The diaphragm 42 in the converter C is operated by a water pressure to provide a pumping action, by which water is sucked into the bath heater 2, and heated water is fed to the shower head 78, while water is supplied into the bath heater 2 by a sucking-in action of the diaphragm 42. Accordingly, even when the pressure of water fed into a chamber 43 on the upper side of the diaphragm 42 through a water-supplying cock 76 is high, the pressure in the bath heater 76 is prevented from being raised to puncture a heat exchanger. In addition, even when the pressure in the bath heater 2 is low, pressure ejected from the shower head 78 can be provided with a sufficient pressure. |
