WIPER DEVICE

The invention relates to a wiper device for a motor vehicle window, comprising a wiper arm adapter unit (- ) and a wiper blade adapter unit (-), which in an installed state create a form fit, and further comprising a longitudinal guide unit (-) for guiding the wiper arm adapter unit (-). According to the invention, the wiper device comprises a locking means (-) which is movably mounted on the wiper blade adapter unit (-) and is provided so as to limit the freedom of movement of the wiper arm adapter unit (-) in the installed state at least substantially in a longitudinal direction (16-16).