FIREPROOFING DEVICE AND BUILDING FIREPROOF STRUCTURE

PROBLEM TO BE SOLVED: To provide: a fireproofing device capable of avoiding falling off a through hole of a partition even when a vibration or impact is applied thereon from an outside, and a building fireproof structure using the fireproofing device.SOLUTION: A fireproofing device 1 is disposed in a through hole 12 formed in a partition 11 of a building and having at least one tubular body 13 inserted therein, and is used for fireproofing of the through hole 12. The fireproofing device 1 comprises: a cylindrical body part 2 which has a thermal expansion property and is inserted in the through hole 12 and in which the at least one tubular body 13 is inserted; a first locking part 3 exposed from the through hole 12 and hooked on one outer surface of the partition 11; and a second locking part 4 exposed from the through hole 12 and hooked on the other outer surface of the partition 11.SELECTED DRAWING: Figure 1 【課題】外部から振動や衝撃などが作用しても、区画体の貫通孔から脱落することを防止できる防火具、及び、当該防火具を用いた建築物の防火構造体を提供する。【解決手段】防火具１は、建築物の区画体１１に形成されかつ少なくとも１本の管体１３が挿通される貫通孔１２に設置され、貫通孔１２の防火に用いられる。防火具１は、熱膨張性を有し、貫通孔１２に挿通されるとともに少なくとも１本の管体１３が挿通される筒状の本体部２と、貫通孔１２から露出し、区画体１１の一方の外面に引っ掛かる第１係止部３と、貫通孔１２から露出し、区画体１１の他方の外面に引っ掛かる第２係止部４と、を備える。【選択図】図１