| 摘要 |
The device comprises at least one brush or strip of a windscreen wiper, where the strip is equipped with a wear indicator (10) which can display the strip usage. The wear indicator measures the period (time) of utilization and/or the wear of the windscreen wiper strip. The wear indicator is an electronic chronometer, or an electronic counter of the number of cycles of wiping, where the wiping cycle represents the movement of the strip from its stationary position back to the stationary position. The electronic chronometer or the electronic counter comprises a switch which is activated at the start of usage, and is equipped with a display including a light-emitting diode (LED) (12). The wear indicator (10) is activated by lifting a neutralization film (13). The wear indicator (10) is fastened by an adhesive and/or screws and/or clipping to at least one strip or an arm (11) of windscreen wiper. The wear indicator allows the adjustment of parameters affecting the wear such as the pressure of application, the temperature, the UV-light, the chemical composition of the rain water, the solid matter content of the rain water, the jetted water, and the characteristics of the material of the brush of windscreen wiper. In other embodiments, the wear indicator comprises (i) an indicator for measuring the chemical and/or physical reactions as a function of time on at least one brush, (ii) a change of color and/or a display of text when the time limit is attained, (iii) a unit with a basic part and a pointer which is mounted so that it can be pivoted by a spring force when an adhesive fastening the pointer along the basic part becomes worn and the adhesion falls below the elastic force, (iv) an adhesive applied to a window which is of variable thickness and covers text and/or a pictogram and/or a color forming a signal, (v) a color layer applied to a head of the strip with a gripping part fastening the strip to the arm and enclosing the head, (vi) a material applied along the strip at the level of its narrow part, where the material is of a different color from that of the strip, which is obtained by co-extrusion, (vii) a hole in transverse direction of the strip, (viii) a color rod enclosed by the strip, or (ix) a brush filled with color fastened on the strip.
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