Abstract: The present invention relates to a lifting door assembly (1A), in particular a clean room door assembly, comprising a lifting door (2) which has a door leaf (3), an end plate (4), and a door leaf accommodating device (5). The lifting door assembly (1A) also contains a door lintel sealing device (20A) which is provided in the area of a door lintel in such a way that the door lintel sealing device produces a sealing effect between the lifting door (2) and the door lintel. At least one part (10B) of the door lintel sealing device (20A) is pivotably retained by means of a hinge and, when the lifting door (2) is opened, can be pivoted from a door leaf plane by an actuating device in the area of the end plate (4) in such a way that the end plate (4) is arranged substantially completely outside the area of a door opening (O) in the opened state of the lifting door (2).

Abstract: A high-speed industrial roller door includes a door leaf that is guided in lateral guides and a drive that acts on the door leaf to displace the latter from an open position into a closed position and vice versa. The door leaf is held in the open position so that adjacent areas of the door leaf are not in contact with one another, in a spiral section of the lateral guides located in the vicinity of the door lintel. The roller door also includes a weight compensation device. The drive has two extension arms that are coupled via joints to the lintel end of the door leaf, said arms being situated at a distance from one another across the door width and being synchronously pivoted about a pivoting axis in a central area of the spiral section. The distance between the coupling points of the extension arms on the door leaf and the pivoting axis of the extension arms can be varied.

Abstract: A weight compensation device for a lifting door, includes a spring element and a tensile element, which can be wound onto or unwound from a winding device in such a way that the spring element achieves its greatest pre-tension when the door leaf is in the closed position and is essentially tension-free when the door leaf is in the open position. The tensile element is narrower at the end facing the winding device than at the end facing the spring element and the winding device includes a guide device, which is used to wind the tensile element in such a way that the wound layers lie adjacent to one another without making contact. To achieve this, the guide faces around the perimeter of the guide device have a continuously increasing radius in the winding direction. This enables the provision of a weight compensation device that achieves the torques required for effective weight compensation by means of a simple construction.

Abstract: The invention relates to a weight compensation device (6) for a lifting door (1), comprising a spring element (61) and a tensile element (62), which can be wound onto or unwound from a winding device in such a way that the spring element (61) achieves its greatest pre-tension when the door leaf (2) is in the closed position and is essentially tension-free when the door leaf (2) is in the open position. According to the invention, the tensile element (62) is narrower at the end facing the winding device than at the end facing the spring element (61) and the winding device comprises a guide device (63), which is used to wind the tensile element (62) in such a way that the wound layers lie adjacent to one another without making contact. To achieve this, the guide faces around the perimeter of the guide device (63) have a continuously increasing radius in the winding direction.

Abstract: The invention relates to a high-speed industrial roller door (1) comprising a door leaf (2) that is guided in lateral guides (4) and a drive that acts on the door leaf (2) to displace the latter from an open position into a closed position and vice versa. According to the invention, the door leaf (2) is held in the open position so that adjacent areas of the door leaf (2) are not in contact with one another, in a spiral section (42) of the lateral guides (4) located in the vicinity of the door lintel. The roller door also comprises a weight compensation device (6). The drive has two extension aims (54) that are coupled via joints to the lintel end of the door leaf (2), said aims (54) being situated at a distance from one another across the door width and being synchronously pivoted about a pivoting axis in a central area of the spiral section (42). The distance between the coupling points (543) of the extension arms (54) on the door leaf (2) and the pivoting axis of the extension arms (54) can be varied.