blade for cleaning windows, especially of motor vehicles, and process for the manufacture of wischblatts

摘要

A wiper blade is proposed for cleaning windows, especially of motor vehicles, is proposed, which is provided with an elongated, rubber-elastic wiper strip that can be placed against the window, which wiper strip is disposed on the lower band face (13), oriented toward the window, of a bandlike-elongated support element (12) made from a spring-elastic steel, on whose other, upper band face (11) facing away from the middle, particularly in the middle portion of the support element, a device (15) for connecting the wiper blade to the free end, urged toward the window, of a driven wiper arm (16) guided on the motor vehicle is welded. It has proved particularly advantageous, in view of the demands made of the support element, if the support element is made from an alloyed quenched and tempered steel, which has the following alloy components: carbon (C), 0.18% to 0.36%; silicon (Si), 0.40% to 0.50 %; manganese (Mn), 1.10 % to 1.80%; phosphorus (P), 0.015% to 0.035%; and sulfur (S), 0.035% to 0.04%.