Wiper blade for cleaning panes in particular of motor vehicles

A wiper blade for wiping windows, comprising a supporting element (12) receiving a wiper strip (14), which supporting element has two spring rails (28, 30) which are separated from one another via a gap (32) and to which a connection device (20) is fastened in a central section of the supporting element, the connection device (20) directly, pivotally coupled to a wiper arm (16), which connection device has a wiper blade-side part (15) with claw-like receptacles (34, 36) which engage around the supporting element (12) at least in certain regions, characterized in that the receptacles (34, 36) each have an inner width (42) which expands in a direction toward the gap (32), wherein each of the spring rails (28, 30) includes a top surface and an oppositely-facing bottom surface, wherein the bottom surface extends entirely from a first vertical edge to a second vertical edge of the spring rail (28, 30) and faces toward the wiper strip (14), wherein each of the receptacles (34, 36) contacts a greater portion of the bottom surface than the top surface, wherein the receptacles (34, 36) include lower portions that extend laterally inwardly toward one another, the lower portions each including an upper surface and a lower surface, wherein the upper surfaces contact the bottom surfaces of the spring rails (28, 30), and wherein the upper surfaces are spaced laterally apart from one another a distance that is smaller than a lateral distance between the lower surfaces, wherein the wiper blade extends along a longitudinal direction of elongation, and the spring rails (28, 30) each extend out of opposite ends of the connection device (20) along the longitudinal direction of elongation, and wherein the lower surface is planar and extends from an outermost edge of the lower portion to an innermost edge of the lower portion, the innermost edge being inclined at an oblique angle relative to the planar lower surface.