Patent ID: 6857236

Claim:
Slatted roofing device, comprising: a chassis ( 1 ) receiving a lower series of slats ( 2 ) mounted spaced apart; at least one support ( 3 ) superposed on the chassis ( 1 ) receiving an upper series ( 4 ) of slats mounted spaced apart, the support ( 3 ) being movable transversely to a longitudinal direction of the lower series of slats on the chassis ( 1 ) to modify a lateral position of the slats of the upper series ( 4 ) relative to the slats of the lower series ( 2 ), the upper and lower series of slats passing from a position of total overlap with one another when the roofing device is open to a position of partial overlap when the roofing device is closed; means for elevating the support ( 3 ) relative to the chassis ( 1 ) to permit passage of air through the roofing device even when the series of upper slats ( 4 ) and the series of lower slats overlap all the surface of the roofing, the means for elevating comprising carriages ( 5 ) distributed along transverse edges of the support ( 3 ), each carriage ( 5 ) comprising at least one wheel ( 6 ) adapted to move transversely over a rolling surface secured to the chassis ( 1 ), said rolling surface comprising: two flat parallel regions ( 7 a , 7 b ) at different levels of elevation; and a ramp ( 8 ) connecting between the two flat regions ( 7 a , 7 b ), such that an amplitude of transverse movement of the support up to a foot of the ramp ( 8 ) is less than or equal to a width of overlap of one the slats of the lower series ( 2 ), with respect to one of the slats of the upper series ( 4 ), when the roofing device is in the closed position.