| 摘要 |
A swimming pool has a sidewall and a flexible liner, the sidewall defining an outwardly extending bay having opposed sidewalls between which a stair assembly is sealingly secured. The stair assembly is a molded structure having a continuous depending flange at the ends of the treads and risers and a hollow triangular stiffening rib extending longitudinally and generally centrally along the underside of each tread. A continuous coping embraces the upper edge of the pool sidewall, the upper edges of the opposed sidewalls and the upper edge of the top riser of the stair assembly. The opposed sidewalls of the bay are metal plates to which the depending flanges of the stair assembly are secured and those plates have edge flanges sealed to the edges of the flexible liner at the sides of the bay. |
