(57) A folding closure device is fit to be associated to the edges of an opening or passage
and comprises at least a plurality of elongated elements (2).
Each elongated element (2) has at least a longitudinal side (5, 7) rotatingly connected
by hinge means (3, 4) to a longitudinal side (5, 7) of an adjacent elongated element
(2).
Said elongated elements (2) are movable between an opening condition of the passage,
in which said elements (2) are, or are almost, mutual faced and a closing condition
of said passage in which the elements (2) are coplanar or almost coplanar.
A longitudinal sliding side (5) of each elongated element (2) is associated in sliding
manner to at least a guiding means (6).
The rotation axes of the hinge means (3) of the longitudinal sliding sides (5) of
the elongated elements (2) define a respective fixed geometric plane and the rotation
axes of the hinge means (4) of opposite longitudinal sides (7) of said elements (2)
define a movable geometric plane more distanced from the at least a guiding means
(6) in respect to the fixed geometric plane in any condition, also in closing condition,
of the device (1).
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