DRIVE SYSTEM FOR A FIRE PROTECTION FLAP

摘要

The invention relates to a drive system (A) for a fire protection flap (8 ) arranged in a ventilation duct (9). Said drive system (A) comprises at lea st one drive element (1), an energy supply element (2) for supplying energy to the drive element (1) and a mechanical load-torque lock (3) for absorbing a torque acting on the fire protection flap (8). The drive element (1) is m ade essentially of plastic. A thermal protection element (4) is at least arr anged on the side of the drive element (1) which faces the ventilation duct (9).