| 摘要 |
A flexible closure formed of interlocking segments comprising a plurality of segments which together constitute the closure, each of the segments located between facing recesses of rails to essentially fill the space between rails at the lower extents when in a closed operative orientation and to essentially fill the space between rails at the upper extents when in the inoperative storage orientation, each of the segments having an upper portion with a generally semi-circular cross-sectional configuration over the majority of its extent with the axis of the upper portion extending horizontally between the rails, each of the segments also having a lower portion in the lower part thereof with a recess being of a generally semi-circular configuration over the majority of its extent with its axis parallel with the axis of the upper portion, the upper portion of one segment being received within the recess of the lower portion of the next adjacent segment to thereby allow the flexing of the closure about the axes formed at the coupling between adjacent segments, the exterior surface of the lowermost segment being provided with a recessed portion for constituting a handle to open and close the closure.
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