Abstract: A hot and cold water mixing device which comprises one or more valve units each constituted by accommodating an operating member within a hollow casing, and a housing into which the one or more valve units are inserted and arranged and in which two primary water passages communicating with a hot water supply source and a cold water supply source, respectively, are formed. The housing is composed of an outer housing (1) and an inner housing (2) which is inserted into the outer housing and which is formed with water holes (11,12,13) communicating with said valve units, and at least two primary water passages (5,6) are formed between the outer housing and the inner housing by separating members (3).

Abstract: A hot and cold water mixing device which comprises an inner housing (11) provided with a hot water inlet hole (17), a cold water inlet hole (18) and a mixed water delivery hole (19), and an outer housing (31) having openings (33, 34, 32) communicating with a hot supply passage (15), a cold water supply passage (16) and a mixed water supply passage (14). The inner housing (11) is inserted into the outer housing (31) to form a hot water passage (20), a cold water passage (35) and a mixed water passage (30) between the outer housing (31) and the inner housing (11). The hot water passage (20) and the mixed water passage (30) are formed by enclosing the hot water inlet hole (17) and the mixed water delivery hole (19) by the respective seal members (26, 29) which each are partly arranged so as to intersect with the circumferential line of the inner housing (11).

Abstract: A bubbly water outlet device comprises a swirl chamber which is connected to a water supply source and is adapted to swirl a flow, and a bubbler chamber which is connected to the swirl chamber through a discharge port provided substantially at a center of the swirl chamber. The bubbler chamber is adapted to suck air from an exterior by virtue of the inflow of water from the discharge port and is capable of discharging bubbly water.