| 摘要 |
PROBLEM TO BE SOLVED: To provide a fire protection structure of a shutter that can improve fire protection performance.SOLUTION: The present invention relates to a fire protection structure of a shutter 1 comprising: a shutter curtain 30 for opening and closing an opening part of a building; and a guide rail 13 provided along a vertical direction of the opening part, the guide rail 13 guiding a pair of mutually opposite ends of the shutter curtain 30. The fire protection structure comprises a fire-resistant rail cap 100 for covering at least a part of the guide rail 13, and the rail cap 100 comprises a base member 101 covering a lower end part of the guide rail 13 and a first fire protection piece 102a provided to project upward from a base member 101, the first fire protection piece 102a covering an inner side face of a first side piece 13a of an inner side face of the guide rail 13.SELECTED DRAWING: Figure 4 |
