A winder is provided near a quarter window of a rear door. A shade member is drawably mounted about the winder. A connecting piece is connected to a drawing arm and mounted to the rear portion of the shade member. A shoe is mounted to a bottom end of the drawing arm. The shoe engages with a regulatory groove extending in a drawing direction of the shade member. A driving cable is connected to the shoe. The shade member can be drawn out across the window by the drawing arm via the sending out of the driving cable by an operating mechanism. Since the regulatory groove extends substantially in a circle, when the shoe moves through engagement with the regulatory groove, the connecting piece connected to the drawing arm pivots relative to the shoe.