| 摘要 |
PURPOSE:To fix positively a ceiling material against a ceiling opening jig at its end surface and facilitate a fine adjustment of its height after fixing the ceiling material by a method wherein a differential block which may easily be attached or removed is fixed so as to accommodate for dimension of rough temporary installation of an air conditioner with a thickness of the block, the block is removed and also used as a jig for use in adjusting the height. CONSTITUTION:A block piece 15 has several times of thickness of a ceiling opening jig 14. Although the ceiling opening jig 14 is a thin flat plate such that a ceiling member 18 may be abutted against an end surface of the ceiling opening jig 14, block pieces 15 having several times of thickness of that of the plate are present at four corners. The block pieces 15 are to be plugged into the ceiling opening jig 14 in such a way as they may be fixed or removed thereto and one side of the block piece 15 is provided with a plurality of step- shapes 15a. As a position aligning jig, the step-shaped portions 15a of the block piece 15 are pushed against a ceiling surface 18a and flanges 11a and 11b of the lower surface of the main body of the air conditioner embedded in the ceiling, respectively, and they are applied as a scale for height adjustment. |
