| 摘要 |
A retractable load-bearing cover includes a plurality of rigid panels hingedly attached one to the other to form a plurality of hinged panel pairs, adjoining hinged panel pairs being hingedly attached to an interconnecting support member. A first hinged panel pair is hingedly attachable at one end to a support structure and hingedly attachable at another end to a first interconnecting support member. A last hinged panel pair includes a distal panel hingedly attached to a terminating support member. In an extended position, upper surfaces of the panels are coplanar to provide a load-bearing surface upon which activities such as dancing and sporting activities can be performed. The cover is retractable in an accordion configuration wherein each hinged panel pair abuts against an adjoining panel pair.
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