SANITARY EQUIPMENT CHAMBER

PROBLEM TO BE SOLVED: To prevent a watertight member from being worn and broken and to improve the appearance by constituting the watertight member movable in the longitudinal direction of a connecting member. SOLUTION: A fitting base part 51a is fitted to a recessed part 21a in the position where the upper end of a watertight member 51 is slightly protruded up from a connecting member 21 to connect the connecting member 21 to wall panels 5A, 5B. The watertight member 51 is then longitudinally slid and installed. The base part 63a of a joint member 63 is fitted to the inside recessed part 51c of the fitting base part 51a. According to this, the flange part 51b of the watertight member 51 abuts on each end surface 61 of the wall panels 5A, 5B to seal it, and the flange part 63b of the joint member 63 blocks the clearance between the wall panels 5A, 5B. A plate 65 is integrally formed on an insulating resin-made main locking projection part 23 and a temporary locking projection part, and the plate 65 is interposed between a steel reinforcing member 25 and the aluminum connecting member 21. Thus, the breakage of the watertight member 51 is solved to prevent the electric corrosion of the connecting member 21, and the appearance of a corner is improved.