Roller blind comprises of first group, upper group, and lower group formed as one unit, such that all groups are interconnected with each other

摘要

The roller blind comprises of a first group, upper group, and lower group formed as one unit. The first group has a box including the blind axis, bearings and louvers. The first group has a connection fitted with the connection of the upper group which has a box including the axis of an upper spool and bearings. The upper spool has a tape independent of the first group. The lower group has a box with a brake unit for the tape.