Patent ID: 7938162

Claim:
A roller blind, comprising: in a lowered position of the roller blind, four layers, with two outer layers of the four layers forming an outer sheet and two inner layers of the four layers forming an inner sheet; an elongate body provided in the inner sheet in an unattached manner; and a winding reel attached to the inner sheet and outer sheet by a first width edge so that the inner and outer sheet can be unwound from the winding reel and wound onto the winding reel, wherein the inner sheet, at least in the lowered position of the roller blind, is positioned inside the outer sheet; a bending stiffness of the inner sheet is such that a horizontal distance between the two inner layers of the inner sheet, at the elongate body, corresponds to a thickness of the elongate body, viewed in a horizontal direction; the outer sheet is freely suspended with no added weight at the lower end of the two outer layers and has a bending stiffness which is greater than the bending stiffness of the inner sheet; and the bending stiffness of the outer sheet is such that the bending stiffness maintains a distance between the two outer layers of the outer sheet which is greater than the thickness of the elongate body when the outer sheet is freely suspended in such a manner that the two outer layers of the outer sheet are at a distance from the two inner layers of the inner sheet.