Rollable curtain for e.g. closing opening of door, has teeth with projecting part engaged in hollow of other teeth and vice versa so as to hook belts and to permit pushing of one of belts on another belt, and slits provided between teeth

摘要

The curtain (1) has belts (2, 3), in which each belt has teeth (5, 6) provided along a longitudinal direction of the belt, where teeth (5, 6) respectively comprises projecting parts (10, 11) engaged in hollows (8, 9). The part (10) of the teeth of the belt (2) is engaged in the hollow (9) of the teeth (6) of the belt (3), and vice versa to hook the belts with respect to each other and to permit pushing of one of the belts on another belt in a direction of the length of the belts. Slits (12) are provided between the teeth, where the width of the slits is greater than the width of the teeth.