Rolling element for the composition of screens (Machine-translation by Google Translate, not legally binding)

摘要

Rolling element for the composition of screens, characterized in that it consists of a sheet of flexible and non-elastic plastic material, preferably square or rhombic, which has hooking means that allow it to maintain a rolling position on one of its elements. diagonal, in which two of its opposite corners meet. (Machine-translation by Google Translate, not legally binding)