| 摘要 |
<p>A spas or whirlpool bath has a bath tub (30) with water jets (32) mounted in the side of the bath tub. A pump (16) is arranged to draw bath water from a suction inlet and pump water out through the jets. The pump outlet is connected to a first, common, generally-horizontal conduit (54) which runs along underneath the bottom of the bath tub, and the jets are connected to the first conduit by a plurality of second conduits (52) extending vertically upwards from opposed sides of the first conduit. The inlet channel to the pump and the said first conduit are constituted by a common composite moulding. The first conduit drains through a restricted drain aperture (86). The structure is particularly easy to fit to a bath tub and yet is effective in operation. The waste outlet of the bath is closed by a stopper (146) which is mounted on a shaft (144) for operation by rotation of a cover plate (150) above the bath waste aperture (36) between 90<o>-separated open and closed positions. The coupling mechanism between the cover plate and the stopper is accommodated in the chamber (104) and works with a bayonnet type of movement defined by a pin (154) and the lower edge of a guide boss (140). The stopper is resiliently mounted on the shaft (144) so as to seat properly against the waste outlet (108) regardless of the thickness of the bath. The waste outlet closure mechanism is positive and reliable, and can be used in a shower or conventional bath.</p> |
