A roll-up door with fall protection preferably includes a door web, a pair of guide tracks, a pair of lower track brackets, a plurality of upper track brackets and a door web roller. The door web includes a plurality of screen web panels and wind bars. Opposing ends of the door web are retained in the pair of guide tracks. A first wind bar is arraigned to be 42 inches off a floor to meet OSHA fall protection standards. The door web includes at least two upper wind bars above the first wind bar and at least one lower wind bar below the first wind bar. The pair of guide tracks are secured to a wall with the pair of lower track brackets and the plurality of upper track brackets. A top of the pair of lower track brackets are located at least 42 inches above the floor.

A roll-up door with fall protection preferably includes a door web, a pair of guide tracks, a pair of lower track brackets, a plurality of upper track brackets and a door web roller. The door web includes a plurality of screen web panels and wind bars. Opposing ends of the door web are retained in the pair of guide tracks. A first wind bar is arraigned to be 42 inches off a floor to meet OSHA fall protection standards. The door web includes at least two upper wind bars above the first wind bar and at least one lower wind bar below the first wind bar. The pair of guide tracks are secured to a wall with the pair of lower track brackets and the plurality of upper track brackets. A top of the pair of lower track brackets are located at least 42 inches above the floor.

A roller shutter includes a chamber with an opening, a roller curtain movable between being fully contained within the chamber and extended beyond the chamber through the opening, and at least one guide rail along and relative to which said roller curtain is movable between being retracted and extended, wherein the roller curtain includes a plurality of slat members interlocked with each other for relative pivotal movement, the plurality of slat members collectively forming first and second major surfaces, and a first layer of fire-resistant and/or heat-resistant fabric fixedly mounted to the first major surface of the slat members and a second layer of fire-resistant and/or heat-resistant fabric fixedly mounted to the second major surface of the slat members, and wherein the guide rail includes at least a first sealing member which, when the roller curtain is extended, contacts or presses into the first layer of fire-resistant and/or heat-resistant fabric.

A roller shutter includes a chamber with an opening, a roller curtain movable between being fully contained within the chamber and extended beyond the chamber through the opening, and at least one guide rail along and relative to which said roller curtain is movable between being retracted and extended, wherein the roller curtain includes a plurality of slat members interlocked with each other for relative pivotal movement, the plurality of slat members collectively forming first and second major surfaces, and a first layer of fire-resistant and/or heat-resistant fabric fixedly mounted to the first major surface of the slat members and a second layer of fire-resistant and/or heat-resistant fabric fixedly mounted to the second major surface of the slat members, and wherein the guide rail includes at least a first sealing member which, when the roller curtain is extended, contacts or presses into the first layer of fire-resistant and/or heat-resistant fabric.

A base slat pry stopper, such as a base slat locking bracket, for locking a rolling shutter curtain covering an opening of a structure is disclosed. The base slat pry stopper may include a bracket base plate mounted to an opening bottom wall on an interior side of the shutter curtain, and a base slat engagement portion extending upward from the bracket base plate and above a top surface of the opening bottom wall. When the shutter curtain is unrolled to cover the opening, the base slat engagement portion engages the base slat to prevent the base slat from deflecting upward away from the opening bottom wall when a force applied from an exterior side of the shutter curtain causes the base slat to deflect toward the interior side of the structure and the shutter curtain. The base slat pry stopper may be permanently or removably installed.

A base slat pry stopper, such as a base slat locking bracket, for locking a rolling shutter curtain covering an opening of a structure is disclosed. The base slat pry stopper may include a bracket base plate mounted to an opening bottom wall on an interior side of the shutter curtain, and a base slat engagement portion extending upward from the bracket base plate and above a top surface of the opening bottom wall. When the shutter curtain is unrolled to cover the opening, the base slat engagement portion engages the base slat to prevent the base slat from deflecting upward away from the opening bottom wall when a force applied from an exterior side of the shutter curtain causes the base slat to deflect toward the interior side of the structure and the shutter curtain. The base slat pry stopper may be permanently or removably installed.

The invention provides a guide rail device (10) for laterally guiding a rolling door or rolling grille armor (68) of a rolling door or rolling grille (11), comprising a guide rail (12) for vertically guiding the rolling door or rolling grille armor (68), an infeed funnel (22) for guiding the rolling door or rolling grille armor (68) into an entry area of the guide rail (12), with the infeed funnel (22) being movable relative to the guide rail (12), and comprising a damping body (34) connected to the infeed funnel (22) which dampens vibrations and shocks of the infeed funnel. The invention further provides a rolling door or rolling grille (11) comprising a first guide rail device and a second guide rail device, wherein the guide rail (12) of the first guide rail device (10) is fixed laterally on the building opening to be locked with the rolling door or rolling grille and the guide rail (12) of the second guide rail device is fixed laterally on the opposite side of the building opening to be locked with the rolling door or rolling grille (11).

A chain assembly includes a wheel secured on a shaft. A chain manually rotates the wheel and the shaft. A one way bearing has an inner race secured to the shaft and has an outer race that can freely rotate in only one direction in relation to the inner race. A brake drum is coupled to the outer race. Brake shoes are in operative contact with the brake drum to apply friction to the brake drum when there is relative motion between them. A brake adjuster adjusts the braking force applied by the brake shoes on said brake drum. The one way bearing is arranged to maintain the brake drum stationary in one direction of rotation of the shaft and rotate the brake drum in the opposite direction of rotation resulting in a degree of braking of the shaft as determined by the brake adjuster.

A chain assembly includes a wheel secured on a shaft. A chain manually rotates the wheel and the shaft. A one way bearing has an inner race secured to the shaft and has an outer race that can freely rotate in only one direction in relation to the inner race. A brake drum is coupled to the outer race. Brake shoes are in operative contact with the brake drum to apply friction to the brake drum when there is relative motion between them. A brake adjuster adjusts the braking force applied by the brake shoes on said brake drum. The one way bearing is arranged to maintain the brake drum stationary in one direction of rotation of the shaft and rotate the brake drum in the opposite direction of rotation resulting in a degree of braking of the shaft as determined by the brake adjuster.

A locking mechanism for use with a door structure having a corrugated surface includes a main body having a corrugated surface. The locking mechanism is configured to be adjustable between an unlocked position where the corrugated surface of the main body is not nested relative to the corrugated surface of the door structure and a locked position where the corrugated surface of the main body is nested relative to the corrugated surface of the door structure. The corrugated surface of the main body includes a plurality of engagement surfaces. Each of the engagement surfaces is configured to resist movement and/or deformation of the door structure with respect to a direction of movement of the door structure associated with the door structure being moved from a closed position towards an open position.