GLASS VEHICLE ROOF COMPRISING LOCALIZED ZONES UNDER COMPRESSIVE STRESS

摘要

An automotive vehicle roof that has two longitudinal edges and two transverse edges and that is symmetrical with respect to a median longitudinal plane, the roof consisting of a glazing unit including at least one mineral glass sheet, the sheet including a border of compressive edge stresses and at least two localized zones of compressive stress inside the border, the zones being placed symmetrically relative to the plane of symmetry and each localized zone of compressive stress being less than 30 cm from a longitudinal edge.