A firestop element is provided which is fabricated from a polymer intumescent composition. The element is associated with a light can of a downlight. In some embodiments, the firestop element drops to a deployed position in the light can in the event of a fire.

A fireproof shutter includes a frame having an opening through which a transport rail for movement of a transport vehicle passes, the opening being divided into an upper opening and a lower opening based on the transport rail, an upper door mounted on the frame and configured to open and close the upper opening, and a lower door mounted on the frame and configured to open and close the lower opening.

An autonomous grid storage system (1) arranged in a warehouse space (12). The autonomous grid storage system is divided within the warehouse space, for example on a single floor of said space, into a plurality of sub grids (10a/10b) separated by fire walls (18). One or more bridges (14) pass through openings in the fire wall to allow bin handling vehicles (210/301) to traverse between the sub grids. The openings (20) are provided with closable fire door (22).

An autonomous grid storage system (1) arranged in a warehouse space (12). The autonomous grid storage system is divided within the warehouse space, for example on a single floor of said space, into a plurality of sub grids (10a/10b) separated by fire walls (18). One or more bridges (14) pass through openings in the fire wall to allow bin handling vehicles (210/301) to traverse between the sub grids. The openings (20) are provided with closable fire door (22).

A transport conveyor includes an upstream conveyor section, a downstream conveyor section, and a relay conveyor section having an orientation changeable between a connecting orientation, in which the relay conveyor section in a gap region to connect the upstream conveyor section to the downstream conveyor section, and an open orientation, in which the relay conveyor section is in a non-overlapping region that does not overlap a movement path to open the gap region. A support axis is above a drive axis, and a link mechanism is configured such that when the relay conveyor section is in the connecting orientation, a first pivot axis is below a reference virtual plane connecting the drive axis to a second pivot axis.

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.

The present disclosure provides a non-powered open/close fireproof shutter including a shutter, a shutter track which is disposed in a horizontal direction and guides both end portions of the shutter in a width direction, a coil box in which a winding shaft for winding the shutter is installed to store the shutter in a coil form, a winding motor which rotates the winding shaft, and a weight which is connected to the shutter and deploys the shutter stored in the coil box along the shutter track. The non-powered open/close fireproof shutter according to the present disclosure can significantly reduce initial facility investment and maintenance costs, prevents malfunction of the fireproof shutter, which may occur when power is lost due to a loss of an emergency power source, in advance, and can secure reliability of a fire blocking function.

The present disclosure provides a non-powered open/close fireproof shutter including a shutter, a shutter track which is disposed in a horizontal direction and guides both end portions of the shutter in a width direction, a coil box in which a winding shaft for winding the shutter is installed to store the shutter in a coil form, a winding motor which rotates the winding shaft, and a weight which is connected to the shutter and deploys the shutter stored in the coil box along the shutter track. The non-powered open/close fireproof shutter according to the present disclosure can significantly reduce initial facility investment and maintenance costs, prevents malfunction of the fireproof shutter, which may occur when power is lost due to a loss of an emergency power source, in advance, and can secure reliability of a fire blocking function.

A fire protection door in an open position is present above a traveling path of a transport vehicle. The fire protection door is capable of moving downward from the open position to a closed position along a door trajectory. The transport vehicle includes: a control portion; an area detection portion that detects an interference area, which is an area in which a portion of the transport vehicle in the traveling path overlaps the door trajectory; and a descent detection portion that detects a descent of the fire protection door. The control portion performs a retraction control such that the transport vehicle travels to the outside of the interference area when the descent detection portion has detected a descent of the fire protection door in a state in which the transport vehicle is located in the interference area.