Windscreen wiper mounting for esp. motor cars - has second wiper arm part sliding in first on two parallel rails in plane at right angles to arm pivoting axis one of which rotates blade

摘要

The mounting has a second (5) wiper arm part which can slide longitudinally on two rails (13,14) w.r.t. a first wiper arm part (4). The rails are a set distance apart in a plane at right angles to the pivoting axis of the first wiper arm part. One of the rails acts as a drive shaft to a pref. worm gear in a bearing housing (15) at the wiper blade end of the second arm. The other end of the rail is supported in a sliding guide (26) within the first arm which allows the rail to rotate, turning the blade to maintain its angle relative to the edges of the windscreen.