SHADE DEVICE

Included are a windup device, a shade attached to the windup device so as to be drawn therefrom and housed therein, a stay attached to a drawing-side edge of the shade, a pair of runners respectively connected to both ends of the stay via first connecting parts, and a pair of guide rails respectively supporting the pair of runners in a movable manner. The first connecting part connects the stay and each of the runners so as to rotate relative to each other in such a manner that each of the guide rails is folded in a direction to approach the windup device.