| 摘要 |
<p>The cover, with flexible roof membrane, is pref. for a swimming pool with at least partially rounded sidewalls. A pool edge main strut (14) has a protruding piece (16) sloping relative to the top edge, the end (26) being adjustable across the centre of the pool (12). Further struts (34, 38) are movably held by this end, for movement along the intervening pool edge (24). The membrane (36), cut to fit the strut length and the intervening zone, forms a circle when spread out, with a cut-out circle sector, and it is laid on the struts so that the sectors come together.</p> |
