A hem bar for use with an architectural-structure covering such as, for example, a rollable screen (e.g., an outdoor insect screen, a solar screen, a hurricane screen, a privacy and security screen, etc.). The hem bar includes a weather strip for contacting or resting on a contacting surface when the covering is in a fully extended position. The weather strip is vertically, movably positioned relative to the hem bar. Additionally, the weather strip may be downwardly biased relative to the hem bar. The hem bar may also include a plurality of weight-receiving chambers for receiving, for example, a weighted rod, a weighted bar, or the like to assist in maintaining the covering in a taut condition (e.g., assists with maintaining constant tension on the covering) in the extended position. The hem bar may have a symmetrical design to eliminate any tilting or rocking motion.

Systems and methods are provided for facilitating automated and manual segregation of internal areas within structures in response to active shooter warnings, or other triggering events. Embodiments may provide automated systems and methods, to facilitate simplified and automated (1) deployment of mechanized safety and/or security (bulletproof) curtains, including certain safety curtains comprising, or otherwise formed of, replaceable bulletproof and/or other penetration-resistant materials, and/or (2) actuation of mechanized safety and/or security (bulletproof) doors, to effectively segregate open areas and hallways in buildings. Exemplary embodiments may: (a) limit lines of sight of a perpetrator; (b) interdict bullet flight paths; (c) restrict or eliminate a perpetrator's freedom movement; (d) confine areas of detected explosive ordnance detonations or dispersal of contaminants; (e) provide a means of trapping/isolating a perpetrator; and/or (f) provide local safe havens in active shooter, gunfire, explosive detonation, contaminant dispersal, and like threat scenarios/situations.

A roll-up door (10) with slats (60) rolled on a reel (12) with spiral guides (32) that maintain a tangent between the reel (12) and the closure plane at the point of entry/exit so as to maintain a perpendicular entry and exit with the side guides (36) and reduce friction, increase speed, reduce noise and help keep self-aligning end caps tracking correctly. It can also eliminate hinges between slats and permit each slat to be removed independently, without disassembling the other slats.

A roll-up door (10) with slats (60) rolled on a reel (12) with spiral guides (32) that maintain a tangent between the reel (12) and the closure plane at the point of entry/exit so as to maintain a perpendicular entry and exit with the side guides (36) and reduce friction, increase speed, reduce noise and help keep self-aligning end caps tracking correctly. It can also eliminate hinges between slats and permit each slat to be removed independently, without disassembling the other slats.

A high speed roll door is movable between an open and a closed position at an opening of a building. The door includes a flexible curtain and a pair of side columns. Each side column provides an inner track to guide the curtain in vertical movement and restrain the curtain from lateral movement during deployment and retraction. The curtain further includes multiple cross bars supporting the flexible curtain from one of the pair of side columns to the other. Each of the cross bars further includes a first longitudinal bar sandwiching part of the curtain; and a second longitudinal bar pivotally connected to the first longitudinal bar. The hinge has an axis of rotation parallel to the first and the second longitudinal bars. At least a wheel is rotatably affixed to each end of the second longitudinal bar to engage the inner track of each of the side columns.

In example implementations, an adjustable speed operator governor release for a rolling fire shutter is provided. The adjustable speed operator governor release includes a shaft coupled to the rolling fire shutter, a gear on a first end of the shaft to engage a spring-loaded clutch during a fire, wherein the spring-loaded clutch is moved to disengage from a drive assembly and to engage the gear of the adjustable speed governor to operate the rolling fire shutter, and a linear speed adjusting mechanism coupled to the shaft and the gear to control a speed of free fall of the rolling fire shutter during the fire.

In example implementations, an adjustable speed operator governor release for a rolling fire shutter is provided. The adjustable speed operator governor release includes a shaft coupled to the rolling fire shutter, a gear on a first end of the shaft to engage a spring-loaded clutch during a fire, wherein the spring-loaded clutch is moved to disengage from a drive assembly and to engage the gear of the adjustable speed governor to operate the rolling fire shutter, and a linear speed adjusting mechanism coupled to the shaft and the gear to control a speed of free fall of the rolling fire shutter during the fire.

A panel assembly including a panel that can be positioned in an opening, the panel including a plurality of locking members spaced apart along at least part of a length of and proximate to opposing longitudinal edges of the panel and a guide extending along either side of the opening, each guide including at least one locking flange extending along at least part of a length of the guide, wherein in use the panel is received in the guides so that the locking members selectively engage the flanges to limit lateral movement of the panel edges.

A shutter for protecting an opening. The shutter comprising a plurality of horizontal curtain slats for covering the opening, wherein horizontal refers to a direction when viewing slats from a front surface, and wherein the curtain slats hang freely from a upper region of the opening; an upper transition slat movably affixed to a lower end of a first curtain slat; a lower transition slat movably affixed to an upper end of a second curtain slat; and a horizontal reinforcing member comprising at least an upper and a lower reinforcing slat, wherein the upper reinforcing slat is rotatably affixed to a lower end of the first transition slat and the lower reinforcing slat is rotatably affixed to an upper end of the second transition slat, and wherein the upper and lower reinforcing slats are rotatably joined.

A shutter for protecting an opening. The shutter comprising a plurality of horizontal curtain slats for covering the opening, wherein horizontal refers to a direction when viewing slats from a front surface, and wherein the curtain slats hang freely from a upper region of the opening; an upper transition slat movably affixed to a lower end of a first curtain slat; a lower transition slat movably affixed to an upper end of a second curtain slat; and a horizontal reinforcing member comprising at least an upper and a lower reinforcing slat, wherein the upper reinforcing slat is rotatably affixed to a lower end of the first transition slat and the lower reinforcing slat is rotatably affixed to an upper end of the second transition slat, and wherein the upper and lower reinforcing slats are rotatably joined.