| 摘要 |
The roller blind has a mechanical brake (B) comprising a wedging unit (K) connected in vertical translation with an apron. The unit has jaws (13a, 13b) including notched or toothed sectors situated in sides opposite to transversally extended cams (16a, 16b) with respect to an articulation axle (14), respectively. The brake has a control unit (D) comprising a part (18) situated in a vertical plane against a section of the apron. The part has a lateral extension (20a) and another lateral extension supported on the respective cams of the jaws that are tilted by being projected towards exterior. |
