ROLL SCREEN, GUIDE RAIL AND DROP-OFF PREVENTION MEMBER

摘要

PROBLEM TO BE SOLVED: To provide a roll screen which prevents an outer edge of the screen from being dropped from a guide rail.SOLUTION: The guide rail comprises: a first drop-off prevention part 27B which is configured displaceable between a guide position where passage of an outer edge 13E is allowed and a drop-off prevention position where drop-off of the outer edge is prevented, and displaced from the guide position to the drop-off prevention position while receiving a movement of the outer edge 13E moving in a direction of dropping from the guide rail; and a second drop-off prevention part 27F which is brought into contact with the outer edge 13E moving in the direction of dropping from the guide rail, at a position opposite to the first drop-off prevention part 27B. The first drop-off prevention part 27B includes a holding part 28 which is brought into contact with the outer edge 13E moving in the direction of dropping from the guide rail, and holds the outer edge 13E by friction. The second drop-off prevention part 27F has a protrusive structure for deforming the holding part 28 by the protrusive structure for press-contact with the outer edge 13E by displacing the first drop-off prevention part 27B to the drop-off prevention position.SELECTED DRAWING: Figure 4