| 摘要 |
<p>A screen (10) for an opening (11) comprising a plurality of elongate elements (12a-12q) pivotally connected together in a criss cross pattern to provide a generally rectangular assembly (12) which is foldable and unfoldable between an extended condition in which the screen (10) closes the opening (11), and a folded condition in which access may be gained through the opening (11), the screen (10) further comprising along each of two opposite sides, a side member (14,15), at least some of the elongate elements (12a-12q) each being retained at one end thereof relative to a respective side member (14,15) and being movable axially of the respective side member (14,15) during folding and unfolding of the screen (10), one of the side members (14) being fixed relative to the opening (11) and the other side member (15) being slidable across the opening (11) to effect folding and unfolding of the screen (10) wherein each side member (14,15) is, at least in the regions where the one ends of the elongate elements (12a-12q) are retained thereby, of re-entrant channel configuration and the retained ends of the respective elongate elements (12a-12q) each carry a guide means (32) which is entrapped in the re-entrant channel (14,15) along the entire extent of axial movement of the one end of the respective elongate element (12a-12q). <IMAGE></p> |
