FIREPROOF STRUCTURE FOR GUIDE RAIL FOR WINDOW SHUTTER

PROBLEM TO BE SOLVED: To provide a window shutter with improved fireproof performance of a guide rail structure.SOLUTION: In a guide space G formed between a first side 30 on a side closer to an outer wall and a second side 31 of a guide rail 3, a reinforcement plate formed of a material having a me...

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Hauptverfasser: HATAKEYAMA YUICHI, TAKAHASHI ISAO, KOBAYASHI YUZO, SHIBAZAKI MASAHIRO, ANDO HIROSHI, IZAWA HIDEMI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a window shutter with improved fireproof performance of a guide rail structure.SOLUTION: In a guide space G formed between a first side 30 on a side closer to an outer wall and a second side 31 of a guide rail 3, a reinforcement plate formed of a material having a melting point higher than that of a material forming the guide rail 3 is provided on at least part of an inner surface of a portion including the second side 31 and facing an outdoor space so as not to project into the guide space G. A portion 71 of the reinforcement plate provided on an inner surface of the second side 31 has a width dimension so as to be opposite to a slat end received in the guide space G. In the guide space G of the guide rail 3, a storage space 35 extending in a height direction is positioned so as not to project into the guide space G, and in the storage space, a thermal expansion fireproof member 8 extending in the height direction is stored so as not to project into the guide space G at ordinary temperature.SELECTED DRAWING: Figure 5 【課題】ガイドレール構造の防火性能を向上させた窓シャッターを提供する。【解決手段】ガイドレール3の外壁に近い側の第1側辺30と第2側辺31との間に形成されたガイド空間Gには、ガイドレール3を形成する材料よりも融点の高い材料から形成された補強板材が、第2側辺31を含む室外空間に面する部位の内面の少なくとも一部にガイド空間Gに突出しないように設けてあり、第2側辺31の内面に設けた補強板材の部位71は、ガイド空間Gに受け入れられたスラット端部に対向するような幅寸法を備えており、ガイドレール3のガイド空間Gには、高さ方向に延びる収容空間35がガイド空間Gに突出しないように位置しており、収容空間には高さ方向に延びる熱膨張耐火部材8が常温下でガイド空間Gに突出しないように収容されている。【選択図】図5