An area is set as an interference area, in which a transport vehicle is located in a state in which a portion of the transport vehicle overlaps a door trajectory which is a movement trajectory of a fire protection door. A control portion that controls a subject vehicle, which is a transport vehicle to be controlled, prohibits the whole subject vehicle from entering the interference area if it is determined, based on another-vehicle information, which is information of a traveling state of another vehicle that is different from the subject vehicle, and information regarding the interference area, that the interference area is present between the another vehicle located forward of the subject vehicle and the subject vehicle, and that a stoppable area is not secured between a rear end position of the another vehicle and the fire protection door.

An area is set as an interference area, in which a transport vehicle is located in a state in which a portion of the transport vehicle overlaps a door trajectory which is a movement trajectory of a fire protection door. A control portion that controls a subject vehicle, which is a transport vehicle to be controlled, prohibits the whole subject vehicle from entering the interference area if it is determined, based on another-vehicle information, which is information of a traveling state of another vehicle that is different from the subject vehicle, and information regarding the interference area, that the interference area is present between the another vehicle located forward of the subject vehicle and the subject vehicle, and that a stoppable area is not secured between a rear end position of the another vehicle and the fire protection door.

A cam assembly for selectively contacting an end-of-stroke damper position switch. The cam assembly includes a first cam that is rotatable about a first axis, and a position lever that is connected to and rotates with the cam assembly. The position lever is configured to be connected to an opening and closing mechanism of the damper and the cam assembly is adjustable to contact a first end-of-stroke damper position switch at the end-of-stroke of the opening and closing mechanism of the damper regardless of the position of the lever.

A fire damper actuation system in an HVAC system includes a damper system and an actuator system. The damper system includes damper blades rotatable between an open configuration and a closed configuration, a crank arm assembly configured to drive the damper blades, a spring assembly configured to be held in a loaded condition when the damper blades are in the open configuration, a temperature-activated fusible link, and a fusible link arm coupling the temperature-activated fusible link to the crank arm assembly. The actuator system includes a motor and a drive device. The drive device is coupled to the crank arm assembly and the temperature-activated fusible link. Operation of the drive device by the motor between a first end stop location and a second end stop location simultaneously rotates the crank arm assembly and the temperature-activated fusible link to complete a test inspection procedure.

A multi-curtain assembly includes: first and second curtain segments, each having a leading edge and side edge; an edge fastener having first and second fastener portions proximate the side edge of the first and second curtain segments, respectively, the first fastener portion of the first curtain segment being connectable to the second fastener portion of the second curtain segment to produce a seam as the curtain segments are moved to their closed positions; a motor driving one or more of the barrel assemblies; a synchronizing mechanism synchronizing the barrel assemblies. An overlap fastener, arranged proximate edges of the curtain segments in an overlap region, has aligning portions that align as the side edges are brought into alignment by the edge fastener, to mask at least one side of the fastener seam as the fastener portions are connected to each other.

A fire or smoke barrier (1) having a head box (2) for housing a curtain (4) which is open at its underside to allow the curtain to be deployed and withdrawn. The head box (2) houses a roller (3) for the curtain (4) to be rolled from for deployment and rolled back onto for withdrawal and attached at the bottom of the curtain (4) is a bottom bar (7) for weighing down the curtain (4) when deployed. The head box (2) has one or more apertures (14, 15) for cleaning air circulation and being provided at the, or each, aperture (14,15) with a spring (22) loaded trap (16,17) normally held open by a fusible link (31), the link fusing (31) in event of fire.

There is provided a ceiling panel for a pod room. The ceiling panel comprises one or more cover components movable between an open configuration and a closed configuration; and an actuation mechanism configured to move the one or more cover components from the closed configuration to the open configuration in response to a trigger. The ceiling panel may provide a specified percentage open area in the open configuration. The ceiling panel may be adapted to acoustically insulate the pod room in the closed configuration.

The present disclosure concerns a fire spread-limiting assembly comprising a heat resistant covering; and a cooling fluid circulation assembly comprising: a cooling fluid source integrated to the heat resistant covering, one or more flexible fluid lines being part of the heat resistant covering, and a pump fluidly connected to said one or more flexible fluid lines and to the cooling fluid source and configured to circulate the cooling fluid within said one or more flexible fluid lines upon actuation. There is also disclosed a method for limiting a spread of a fire.

The present disclosure concerns a fire spread-limiting assembly comprising a heat resistant covering; and a cooling fluid circulation assembly comprising: a cooling fluid source integrated to the heat resistant covering, one or more flexible fluid lines being part of the heat resistant covering, and a pump fluidly connected to said one or more flexible fluid lines and to the cooling fluid source and configured to circulate the cooling fluid within said one or more flexible fluid lines upon actuation. There is also disclosed a method for limiting a spread of a fire.

A door operator with high-speed operation and fire escape functions comprises a motor, a high-speed centrifugal brake module, a centrifugal reduction module, a central shaft locking module and a first and second clutch module. In the stationary state, the high-speed centrifugal brake module, centrifugal reduction module and central shaft locking module are connected to each other, and the drive shaft of the motor is locked by the central shaft locking module. In the normal operation, the first clutch module disengages the high-speed centrifugal brake module from the centrifugal reduction module, and the drive shaft is rotatable at high speed. In the event of fire escape, the second clutch module disengages centrifugal reduction module from central shaft locking module, and the drive shaft rotates at a lower speed. The device will provide high-speed rotation under normal operation, and automatically close the door panel at a gradually lowered speed in the event of fire escape.