Method for cutting the edges of a continuous glass ribbon, a device for implementing said method, and a glass plate cut using said method

A method for cutting the edges of a continuous glass ribbon ( 10 ), moving at a speed VR, comprising a longitudinal marking stage which generates a marking line, in particular using a cutting wheel ( 11 ), a transverse marking stage, and a subsequent transverse breaking stage. The inventive method also comprises an intermediary stage between the longitudinal marking stage and the transverse marking stage consisting in generating at least one longitudinal fissure ( 32 ) through at least a substantial part of the thickness of the continuous glass ribbon, or through the entire thickness of the continuous glass ribbon, on the basis of the marking line ( 30 ), and in spreading said longitudinal fissure at a speed VF, which is more or less equal to but in the opposite direction to the speed VR of the moving continuous glass ribbon. The invention also relates to a device designed to carry out said method. The glass plates cut using the inventive method have edges, advantageously, without any major defects.