| 摘要 |
<p>A surface wiping means (2) is described. The surface wiping means comprises a surface engaging, longitudinally extending blade (4) and a blade support means (6) in which the wiping means (2) is adapted to engage with a wiper motive means (8,20). The blade (4) and blade support means (6) are jointly biased by a biasing means so that the blade forms a concave arc radially inward of the blade support means when no counter forces act on the blade (4). The surface wiping means (2) is so constructed that the magnitude of the bias decreases with distance along the blade from the position where the motive means (8,20) engages with the wiping means (2). The advantage of the present invention is that the wiping means closely follows the contours of the surface and, thus, wipes the surface with greater efficiency than previously known surface wiping means. <IMAGE></p> |
