| 摘要 |
Control for the drive of a door, which reduces the maximum closing force acting on the door panel, in a predetermined safety region of the path of movement of the door panel, the safety region terminating at a distance from the closed position of the door panel. The distance of the safety region from the closed position of the door panel may fall within the region of elastic deformation of the door seal. If the control serves for a hydraulic or pneumatic drive 1 for doors, which is supplied with a pressure medium by way of a supply line, then pressure switches 9, 10, 11 are provided, which measure the pressure in the driving cylinder and on passing through the safety region, block the supply line when a predetermined upper limit pressure is exceeded and open the supply line when cylinder pressure is below a lower limit pressure. An electric motor drive may alternatively be used. <IMAGE> |
