| 摘要 |
The structure has covering modules (3, 4) sliding with respect to each other and including cradles integrated by longitudinal carrier profiles extending parallel to the ground. The profiles have a similar transversal section presenting arrangements for positioning and fixing the base of the cradles with panels (7), and for mounting a wheel (30) and guide rollers (40, 41) in flanges integrated to the profiles. The rollers cooperate with a part (42, 43) of profiles disposed facing the overlapped modules to assure a relative transversal positioning during sliding of the modules.
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