| 摘要 |
PURPOSE:To make it possible to shorten installation work and enhance a finished state of the work by fixing a suspension bolt with the main body of an air conditioner through penetration holes provided on an opening wooden frame. CONSTITUTION:In a state that no ceiling frame and no ceiling are assembled yet, suspension bolts 3, which fix an air conditioner 1, are fixed by way of suspension bolt fittings 4 through penetration holes installed to a mounting board in such a fashion that an opening wooden frame may be exposed downward from a ceiling surface with nuts. Then, carpenters who are workers on a building side, assemble a ceiling frame and a ceiling one by one alone the outer periphery of an opening board, thereby installing a ceiling opening. It is, therefore, possible to constitute the ceiling opening without an air conditioner as a result. Furthermore, since the opening wooden frame is exposed downward, carpenters who execute ceiling assembling work, are always reminded of the opening ceiling so that it is quite impossible to leave the ceiling opening work undone. |
