Patent attributes
A cordless roller shutter structure includes a roller shutter fixing seat, a sleeve controller, a tension adjuster and a shutter sheet locating unit. The sleeve controller is fitted in a sleeve and securely disposed on the roller shutter fixing seat. The shutter sheet is controlled to suspend downward or roll upward directly by means of pulling and releasing the lower weight of the shutter sheet without using the bead chain. A bearing is received in each of two collars so that the sleeve can more easily drive the shutter sheet to save strength. In addition, by means of the adjustment disc of the tension adjuster and the shutter sheet locating unit, the ascending/descending speed of the shutter sheet can be adjusted and the sunshade position of the shutter sheet can be locked. Accordingly, the utility and effect of the cordless roller shutter are enhanced.
