A door management system on an aircraft includes a fuselage extending along a longitudinal axis in a fore-aft direction parallel to forward flight, an opening in a sidewall of the fuselage, a door mounted on the sidewall to slide in the fore-aft direction between a closed position covering the opening and an open position revealing the opening, a cable attached to the fuselage and the door and a speed governor operatively coupled to the cable to limit a velocity of the door as it moves between the open position and the closed position.

Sliding operator assemblies and associated fenestration units, systems, and methods of use and assembly are described. Some such sliding operator assemblies transition a first, linear actuation force along a first axis (e.g., vertical) to a second actuation force along a second axis (e.g., horizontal) to cause a drive mechanism to impart opening and closing forces, respectively, on the sash. Some designs relate to belt-, twisted ribbon-, or band-drive sliding operator assemblies.

Sliding operator assemblies and associated fenestration units, systems, and methods of use and assembly are described. Some such sliding operator assemblies transition a first, linear actuation force along a first axis (e.g., vertical) to a second actuation force along a second axis (e.g., horizontal) to cause a drive mechanism to impart opening and closing forces, respectively, on the sash. Some designs relate to belt-, twisted ribbon-, or band-drive sliding operator assemblies.

The displacement device (10), which is provided for the installation in a door compartment (18) of a functional entity (1), comprises a drive device (2) preferably comprising a housing (210), a spring mechanism (211), a pull cord pulley (212) coupled to the spring mechanism (211), and a pull cord (22), which is wound onto the pull cord pulley (212) and is guided preferably via at least one deflection pulley (231, 232, 233) up to a holding element (33, 339; 72), a mounting profile (14), which is connected or connectable by mounting hinges (131) to a single-part or multi-part door (11), which is held vertically aligned and displaceable by a holding device (4); which is connected on an upper end piece to an upper guide carriage (5) that is supported displaceably on an upper guide rail (15) and/or which is connected on a lower end piece to a lower guide carriage (6) that is supported displaceably on a lower guide rail (16); and which, connected to the drive device (2), is automatically displaceable between a rear-sided end position (S2) at the rear-side of the displacement device (10) and a front-sided end position (S1) at the front-side of the displacement device (10); and

an adjustment device (3, X3), with which a pre-tension on the spring mechanism (211) of the drive device (2) can be set. According to the invention the adjustment device (3, 3X) is arranged separated from the drive device (2) and comprises an adjustment element (33, X33) which is rotatable and lockable or displaceable and lockable and which adjustment element (33, X33) cooperates with the pull cord (22) led out of the drive device (2) in such a way that the pull cord (22) is pullable out of the drive device (2) by rotation or displacement of the adjustment element (33, X33) to set a corresponding pre-tension of the spring mechanism (211).

The displacement device (10), which is provided for the installation in a door compartment (18) of a functional entity (1), comprises a drive device (2) preferably comprising a housing (210), a spring mechanism (211), a pull cord pulley (212) coupled to the spring mechanism (211), and a pull cord (22), which is wound onto the pull cord pulley (212) and is guided preferably via at least one deflection pulley (231, 232, 233) up to a holding element (33, 339; 72), a mounting profile (14), which is connected or connectable by mounting hinges (131) to a single-part or multi-part door (11), which is held vertically aligned and displaceable by a holding device (4); which is connected on an upper end piece to an upper guide carriage (5) that is supported displaceably on an upper guide rail (15) and/or which is connected on a lower end piece to a lower guide carriage (6) that is supported displaceably on a lower guide rail (16); and which, connected to the drive device (2), is automatically displaceable between a rear-sided end position (S2) at the rear-side of the displacement device (10) and a front-sided end position (S1) at the front-side of the displacement device (10); and

an adjustment device (3, X3), with which a pre-tension on the spring mechanism (211) of the drive device (2) can be set. According to the invention the adjustment device (3, 3X) is arranged separated from the drive device (2) and comprises an adjustment element (33, X33) which is rotatable and lockable or displaceable and lockable and which adjustment element (33, X33) cooperates with the pull cord (22) led out of the drive device (2) in such a way that the pull cord (22) is pullable out of the drive device (2) by rotation or displacement of the adjustment element (33, X33) to set a corresponding pre-tension of the spring mechanism (211).

A protective apparatus and an aerial work device are disclosed. The protective apparatus comprises a bracket (1) and a cover (2); the upper side of the cover (2) is hinged to the upper side of the bracket (1); the protective apparatus further comprises a pull-down apparatus (4); the pull-down apparatus (4) comprises a fixed pulley (403), a movable pulley (404), a push rod (407) and a pull rope (401); the fixed pulley (403) is fixedly connected to the cover (2); the movable pulley (404) is located above the fixed pulley (403); the movable pulley (404) is slidingly connected to the cover (2); a fixed end of the pull rope (401) bypasses the movable pulley (404) and is connected to the fixed pulley (403); and an upper end of the push rod (407) is connected to the movable pulley (404). These and other embodiments and variations are more fully disclosed herein.

A protective apparatus and an aerial work device are disclosed. The protective apparatus comprises a bracket (1) and a cover (2); the upper side of the cover (2) is hinged to the upper side of the bracket (1); the protective apparatus further comprises a pull-down apparatus (4); the pull-down apparatus (4) comprises a fixed pulley (403), a movable pulley (404), a push rod (407) and a pull rope (401); the fixed pulley (403) is fixedly connected to the cover (2); the movable pulley (404) is located above the fixed pulley (403); the movable pulley (404) is slidingly connected to the cover (2); a fixed end of the pull rope (401) bypasses the movable pulley (404) and is connected to the fixed pulley (403); and an upper end of the push rod (407) is connected to the movable pulley (404). These and other embodiments and variations are more fully disclosed herein.

A vehicle enclosure system may include a top rail coupled to a side of a vehicle. A travel bar may be coupled to a covering. The travel bar may include a handle and a runner configured to facilitate movement of the covering. The handle may be configured to be coupled to a latch. The runner may include one or more rollers configured to engage and rotate along the top rail. A housing may be coupled to the side of the vehicle. The housing may define a space to store the covering. In some embodiments, the handle may define a hook and the latch may define a pin. The hook may be sized and configured to engage the pin such that the handle is coupled to the latch.

A panel device, particularly a roof light for a recreational vehicle, comprises an at least substantially polygonal frame which surrounds an opening. A window is connected to the frame for pivoting about a pivot axis and comprises a panel which extends over the opening. Provided between the frame and the window is a stay device which is manipulable between a first position, in which the window is forced into a flat state and closes the opening, and at least one second position in which the window is raised by the stay device and leaves the opening at least partially clear. The stay device comprises a stay which extends movably from an elongate guide at a first outer end and is connected pivotally to the window at an opposite, second outer end. The stay is adjustable in the guide and is coupled to an actuator via a flexible transmission. The transmission comprises at least one tension-resistant pull member which is coupled to the stay and which is movable in an axially at least substantially rigid yet flexible sleeve, a first outer end of which is fixed to or close to the stay and a second outer end of which is attached to or close to the actuator.

A panel device, particularly a roof light for a recreational vehicle, comprises an at least substantially polygonal frame which surrounds an opening. A window is connected to the frame for pivoting about a pivot axis and comprises a panel which extends over the opening. Provided between the frame and the window is a stay device which is manipulable between a first position, in which the window is forced into a flat state and closes the opening, and at least one second position in which the window is raised by the stay device and leaves the opening at least partially clear. The stay device comprises a stay which extends movably from an elongate guide at a first outer end and is connected pivotally to the window at an opposite, second outer end. The stay is adjustable in the guide and is coupled to an actuator via a flexible transmission. The transmission comprises at least one tension-resistant pull member which is coupled to the stay and which is movable in an axially at least substantially rigid yet flexible sleeve, a first outer end of which is fixed to or close to the stay and a second outer end of which is attached to or close to the actuator.