Abstract:
The invention relates to a roller shutter (100), in particular a high-speed roller shutter, having: a door leaf (110) in the form of a flexible curtain, lateral guides, in which lateral edges of the door leaf (110) are received, and a drive (140) which generates a driving force for driving the door leaf (110), wherein the door leaf (110) has an elastically designed terminating element (112) on a forward edge, which tensions the lateral guides by means of laterally attached transverse force components. Said roller shutter (100) is in particular characterized in that the driving force of the drive (140) engages on the terminating element (112) of the door leaf (110) and provides the laterally attached transverse force components for tensioning the terminating element (112) of the door leaf (110) and a tension force component, substantially directed in the movement direction of the door leaf (110), for closing the door leaf (110). An improved roller shutter (100) is thus achieved, which has high operational reliability and represents less danger to people or objects in cases of collision.
Abstract:
The invention relates to a lifting door (1), comprising a movable door leaf (6) formed by slats (61) pivotably connected to each other and comprising building-mounted frames (2). Lateral guides (3) for the door leaf (6), which have a vertical section (32) and a lintel section (31), and frame sealing elements (51) of a sealing device (5) are arranged thereon. The frame sealing elements close a gap between the door leaf (6) and a section of the frames (2) facing the door opening when the lifting door (1) is closed. The vertical sections (32) of the guides (3) can be moved perpendicularly to the door leaf plane and are supported on the frames (2) in a stationary manner in the direction of motion of the door leaf (6; 6'), whereby the door leaf (6) can be pressed against the sealing device (5) in the direction of the outside of the door when the lifting door (1) is closed. The invention further relates to a frame (2), a guide (3), and a corresponding method. Thus an improved sealing effect between the door leaf (6) and the door opening can be created, wherein at the same time high reliability during operation is achieved and high motion speeds are enabled.
Abstract:
The invention relates to a weight compensation device (6) for a lifting gate (1), comprising a spring-loaded element (61) and a tractive element (62), which can be wound onto or unwound from a winding unit in such a way that the spring-loaded 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 tractive element (62) is narrower at the end facing the winding device than at the end facing the spring-loaded element (61) and the winding device comprises a guide unit (63), which is used to wind the tractive element (62) in such a way that the wound layers lie adjacent to one another without making contact. To achieve this, the guide surfaces around the perimeter of the guide unit (63) have a continuously increasing radius in the winding direction. This enables the provision of a weight compensation device (6) that achieves the torques required for effective weight compensation by means of a simple construction. The invention also relates to a lifting gate (1) that is equipped with a weight compensation device (6) of this type.