Opening of a closure frame comprising means for preventing exposure of the filling space

摘要

The casement (1) has an opposing unit (10) for preventing loosening of a filling volume (2). U-shaped locking element (11) is arranged in a housing of an opening framework (3). The locking element is made of a material whose rigidity is higher than that of a sealing joint (7). The locking element is arranged between the framework and an edge of the filling volume. A primary face (12) of the locking element is in contact with the framework. A secondary face (13), opposite to the primary face of the locking element, is engaged with the filling volume or the sealing joint. The locking element is made of a stainless metal material, aluminum or plastic materials.