Two half-round guide grooves (2) are formed in the roof gutter (1) and a holder is provided for a draw spring (3). The arrangement involves a draw and holding plate with two draw loops and a cover (4). A base part is formed as a cleaning broom with connection to the draw plate (5). The draw spring is built into a roller cassette with suspension (6). The suspension device with a circulating roller is formed in the area of the roof gutter outlet (7). A rope guide is provided with a cavity in the centre (11). A cleaning piece has a screw closure (9) and a push-in blade (10) is incorporated for picking up dirt.
