Wiper arm to a wiper arm and an articulated on this wiper blade

It is proposed in particular of motor vehicles, a wiper lever (10) to a wiper arm (12) and a at this articulated wiper blade (14) for cleaning windows, the wiper blade with a band-like, elongated, spring-elastic, over its band surfaces (26, 28) in the longitudinal direction is provided curved support member (22) which on its concavely curved band surface (26) has a can be placed against the disc, rubber-elastic wiper strip (30), at the convexly curved band surface (28) is seated a joint part (20) on which an adapter ( 40) is mounted swingable, the property in the longitudinal direction of the wiper blade and in (to the band surfaces of the supporting member 22) at a distance located from each other has aligned levels walls (42) and are disposed (on the adapter against a restoring force of movable locking means 72) cooperate with mating locking means (66) of the wiper arm. A particularly reliable connection between the wiper arm and the wiper blade to form the wiper lever is achieved when the locking means are arranged on at least one of the two walls (42) and substantially to the faces of these walls are movable transversely.