PENETRATION PART FIREPROOF MEMBER AND WALL PENETRATION PART CONSTRUCTION METHOD

PROBLEM TO BE SOLVED: To provide a penetration part fireproof member which is capable of covering a periphery of a long body such as a cable during construction such as wiring and does not require work after a wall part is completed, and a wall penetration part construction method using the penetration part fireproof member.SOLUTION: A penetration part fireproof member 1 comprises: a main body part 6; a thermal expansion member 7 that is provided in an annular shape on an inner peripheral surface of the main body part; and a flexible foam 8 which is provided inside of the main body part 6 and the thermal expansion member 7 and capable of holding a long body 13 that is wired or piped through at least a penetration hole 4. In the main body part 6, a cut part 10 that is cut in an axial direction is formed in a part in a circumferential direction, and a split part 14 that is cut in the axial direction is formed in a part in a circumferential direction of each of the thermal expansion member 7 and the foam 8. In both side parts 12a and 12b holding the cut part 10 of the main body part 6 therebetween, lock means 11 which can be locked with and separated from each other are provided.SELECTED DRAWING: Figure 2 【課題】 配線等の工事の際にケーブルなどの長尺体の周りを覆うことができ、壁部の完成後に作業が必要とならない貫通部耐火部材及び当該貫通部耐火部材を用いた壁貫通部施工方法を提供する。【解決手段】貫通部耐火部材１は、本体部６と、本体部の内周面に環状に設けられる熱膨張部材７と、本体部６及び熱膨張部材７の内側に設けられ、少なくとも貫通孔４に配線又は配管される長尺体１３を保持可能な柔軟性を有する発泡体８と、を備え、本体部６は、周方向の一部にの軸方向に沿って切断される切れ部１０が形成されるとともに、前記熱膨張部材７、前発泡体８のそれぞれ周方向の一部に軸方向に沿って切断された割り部１４が形成されており、本体部６の当該切れ部１０を挟んで両側部１２ａ，１２ｂには互いに係止及び離反可能な係止手段１１が設けられる。【選択図】図２