| 摘要 |
<p>Disclosed is a roll shade device provided with a shading sheet, guide belts, rail members, and a winding mechanism. The shading sheet is moved between a wound state and a deployed state. The guide belts extend in the movement direction of the shading sheet and are connected to the side end sections of the shading sheet. The side end sections are in the shading sheet width direction, which intersects with the movement direction at right angles. The rail members extend in the movement direction and slidably support the guide belts, thereby guiding the movement of the shading sheet. The winding device has a winding roller, which winds up the shading sheet and the guide belts. The guide belts have retaining sections. The retaining sections extend beyond the outer ends of the winding roller and are curved at right angles toward the surface on which the shading sheet moves in the deployed state. In the wound state, portions of the retaining sections that are adjacent to each other not only overlap each other in the shading sheet width direction but are capable of engaging one another.</p> |
