FIREPROOF BOARD FRAME, INSTALLATION STRUCTURE OF CEILING-EMBEDDED DEVICE, AND INSTALLATION METHOD OF CEILING-EMBEDDED DEVICE

• Main Authors: TAJIMA HIROKI, USHIO SHINNOSUKE, URUSHIBARA SHIN, ADACHI TOMOYUKI, KARUBE MOTOYOSHI, TASATO KAORI
• Format: Patent
• Language: English; Japanese
• Published: 06.09.2023
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; BUILDING; CEILINGS; FIRE-FIGHTING; FIXED CONSTRUCTIONS; FLOORS; GENERAL BUILDING CONSTRUCTIONS; HEATING; HUMAN NECESSITIES; INSULATION OR OTHER PROTECTION OF BUILDINGS; LIFE-SAVING; LIGHTING; MECHANICAL ENGINEERING; RANGES; ROOFS; VENTILATING; WALLS, e.g. PARTITIONS; WEAPONS

To provide a fireproof board frame, an installation structure of a ceiling-embedded device and an installation method of the ceiling-embedded device capable of forming a fire protection line without requiring a double ceiling structure and capable of being easily constructed.SOLUTION: A fireproof board frame 1 comprises: four vertical frame portions 11 fixed to a ceiling joist 6 formed around a rectangular opening 5 opened in a ceiling to extend upward and formed at each corner portion of the rectangular opening 5; and four upper frame portions 12 formed in a rectangular shape so as to connect upper ends of the vertical frame portions 11. The vertical frame portions 11 serve as substrates of side edges of side face fireproof boards 9 forming side faces of a box-like space 7 formed in a ceiling. The upper frame portions 12 serve as substrates of upper edges of the side face fireproof boards 9 and of an outer periphery of an upper face fireproof board 8 forming an upper face of the box-like space 7.SELECTED DRAWING: Figure 1 【課題】 二重の天井構造を必要とすることなく防火ラインを形成することができ、しかも施工を容易にすることができる耐火ボード枠、天井埋込装置の設置構造、及び天井埋込装置の設置方法を提供する。【解決手段】耐火ボード枠１は、天井に開かれた矩形開口５を周囲に形成される天井野縁６に固定されて上方に延びており、前記矩形開口５の角部にそれぞれ形成される４つの縦枠部１１と、前記縦枠部１１の上端同士を接続するように矩形に形成される４つの上枠部１２と、を備え、前記縦枠部１１が天井裏に形成される箱状空間７の側面を形成する側面耐火ボード９の側縁部の下地となるとともに、前記上枠部１２が前記側面耐火ボード９の上縁部、及び前記箱状空間７の上面を形成する上面耐火ボード８の外周部の下地となる。【選択図】図１