| 摘要 |
A roll screen cassette for installation in a closure assembly having a frame for moveably retaining a closure member, the frame including a header, sill, and vertical jamb sections, at least one of the sections including a pocket formed within the interior thereof, the pocket having a first predetermined configuration defined by the interior of the section and for receipt of the roll screen, the roll screen comprising a pair of brackets from which the roll screen is pivotally supported, the pair of brackets having a second predetermined configuration compatible with the pocket of the frame section having the first predetermined configuration, the pair of brackets utilized for removeably retaining the roll screen within the pocket in use, the pair of brackets and roll screen being removeably held in position with respect to said frame only by the pocket having the first predetermined configuration and the pair of brackets having a second predetermined configuration compatible with the pocket and being located in the pocket in use, wherein the compatible shapes of the pair of brackets and the pocket when installed in the frame section cooperate to prevent the pair of brackets from rotating with respect to the pocket and the frame when the roll screen is let out or taken in use.
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