WIPER DEVICE, WINDSCREEN WIPER AND MOUNTING METHOD

The invention relates to a wiper device (10a, 10b) having at least one wiper blade adapter (12a, 12b) with at least one fluid connection element (22a, 22b), at least one wiper arm adapter (14a, 14b), at least one cover unit (16a; 16b); a fluid coupling element (24a, 24b) for fluid connection with the at least one fluid connection element (22a, 22b), at least one fluid blocking element (26a, 26b) for fixing a fluid connection of the at least one fluid coupling element (24a, 24b) to the at least one fluid connection element (22a, 22b), and at least one cover fixing element (28a, 28b) for fixing the position of the at least one cover unit (16a, 16b) to at least part of the at least one wiper arm adapter (14a, 14b). According to the invention, the wiper device (10a, 10b) has at least one actuating element (30a, 30b), which is provided for transferring the at least one fluid blocking element (26a, 26b) and the at least one cover fixing element (28a, 28b) together by means of a particularly translational movement of the actuating element (30a, 30b) relative to the wiper arm adapter (14a, 14b) into the connected position and/or the released position.