Bachnagel, founded by a dipl. Engineer and Architect, has designed and patented the corner roller shutter. He saw the necessity to work on a solution that would save energy and make it possible to install roller shutters, because normally, roller shutters can't be installed around full glass window corners without guiding rails and instead, a replacement solution, e.g. blinds had to be installed. Because of this, he saw the necessity to work on a solution that would save energy and make it possible to install roller shutters. Thus, he carefully designed and developed the corner roller shutter. Bachnagel produces the additional components that are necessary for the assembly of the corner roller shutter. Bachnagel delivers those components world wide, to companies that produce roller shutters. The patented system is applicable in various different areas, e.g. in the furniture sector, in all kinds of rolling doors and even sectional doors. Even temporary room dividers are possible.