Divided roller blind for a vehicle window

A first winding spindle (FWS) (14) runs on bearings and rotates alongside a window edge (7). A first blind tracking (16) fastens on the FWS with an edge and has a first free edge (17) moved by the FWS. A second winding spindle (SWS) (35) runs on bearings and rotates alongside the window edge. A second blind tracking (38) fastens on the SWS with an edge and has a second free edge (39) moved by the SWS.