The invention relates to a wiper arm device, in particular a windscreen wiper arm device, comprising: at least one hose-holding unit (12) which can be mounted on at least one wiper arm (10) and which comprises at least one hose guide (14) provided for guiding at least one washing water hose (16); at least one auxiliary nozzle unit (18); and at least one coupling unit (20) which is provided to couple the auxiliary nozzle unit (18) to the hose-holding unit (12) and comprises at least one first coupling element (22) and at least one corresponding second coupling element (24) for coupling. According to the invention, the first coupling element (22) is formed at least in part by the hose guide (14).