| 摘要 |
A windscreen wiper blade element comprises a body portion 3, 16 and lip portion 5, 19 which may be pivoted relative thereto either by adjusting the pressure in chambers 8, 9 so that the pressure in one is greater than that in the other or by means of induction coils 22, 23 interacting with metal plates 24, 25, or magnetisable particles in the lip portion. <IMAGE> |
