Roller shutter unit comprises roller hanging which is rolled up and down on roll shaft, and shaft drive is provided in connection with roll shaft, where shutter gate controller is provided for controlling shaft drive
摘要
<p>The roller shutter unit comprises a roller hanging which is rolled up and down on a roll shaft (1). A shaft drive is provided in connection with the roll shaft, where a shutter gate controller is provided for controlling the shaft drive. The roller hanging is rolled down against the balancing force of a counterweight that interacts with the roll shaft depending on a sub-area of the roller hanging. The shutter gate controller comprises a power input of the shaft drive for rolling up and down.</p>
