| 摘要 |
<p>The invention relates to a window-cleaning device comprising a replaceable flexible lip (1) suitable for mounting on a support part (2) such that one edge of the flexible lip (1) is arranged in a use position, forming a linear contact area with the window to be cleaned. The flexible lip (1) has a quadrangular cross-section with four longitudinal edges (11, 12, 13, 14) at which two larger faces and two smaller faces of the quadrangular cross-section meet. Guides (21, 22) are provided on two facing surfaces of the support part (2) for the coupling of projections (15, 16) defined in the longitudinal mid-area of the larger faces of the flexible lip (1), and said guides are arranged in such a way as to determine four possible mounting positions, in each of which one of the four edges of the flexible lip is disposed in the use position.</p> |
