| 摘要 |
1. Double windscreen wiper, in particular for a vehicle windscreen comprising two arms (1, 2) which are substantially parallel and close to one another, in which each substantially rectilinear arm has a free end (1A, 2A) which supports a blade substantially parallel to the blade of the other arm and applied in the operating position against the windscreen, the other end, called the central end (1B, 2B), of each arm being articulated on a fastening head (3) mounted in the operating position on an axis of rotation (X1, X2) common to the two arms, substantially perpendicular to a central zone of the windscreen and being able to be provided with an alternating rotary movement in a sector corresponding to a predetermined sector to be cleaned on the surface of the windscreen, whereas the fastening head (3) comprises at the central end of each arm an axis of articulation (X3-X4) substantially perpendicular to its axis of alternating rotation, and resilient support means (14, 15) for the individual application of each blade against the windscreen surface, characterised in that the axis of articulation (X3-X4) is a single axis common to the two central ends and in that the central end of each arm and the fastening head (3) have lateral support faces (6), transverse to the axis of articulation (X3-X4), provided to engage respectively together so as to enable each arm to pivot slightly about the common axis of articulation (X3-X4) whilst remaining in a same plane transverse to the said axis, so as to enable the blade associated with each arm to follow the more or less arcuate profile of the windscreen in an exact manner, at all points of the sector to be cleaned thereon. |
