Patent attributes
The invention relates to a wiper arm/wiper blade connection between a wiper blade (3, 3a, 3b) and a wiper arm (1) of a windscreen wiper installation for vehicles, comprising a wiper blade adapter (4) which is mounted on the wiper blade for detachably fastening the wiper blade to the wiper arm. The wiper blade is designed as a flat wiper blade and comprises at least one nozzle opening (11.1, 12.1) and/or at least one spray or distribution channel (11, 12) having nozzle openings for applying a cleaning or washing liquid to a vehicle screen on at least one wiper blade longitudinal side. The connection further comprises at least one liquid connection (32, 33) on the wiper blade adapter on the adapter end for detachably connecting the at least one nozzle opening and/or the at least one spray or distribution channel to at least one outer liquid line (14) for supplying the washing or cleaning liquid, namely via a coupling unit (39) that is connected to the at least one liquid line and detachably connected to the at least one liquid line. The invention is characterized in that, if the wiper blade is configured as an electrically heated wiper blade, the wiper blade adapter has at least one electrical connection (35) in addition to the at least one liquid connection, said electrical connection being detachably connected to the at least one outer electrical line (15) via the coupling unit to supply the heating current to the wiper blade.
