OUTER FRAME FIXING STRUCTURE

To provide a fixing structure of an outer frame capable of easily coping with a change in the thickness of a floor.SOLUTION: An outer frame has a flange part and a guide groove, and the outer frame is provided with a fixing device 6 for fixing the outer frame to a floor; the fixing device 6 has a movable mounting member 24 guided by the guide groove and a rotatable fixing member 25 provided on the mounting member 24; a mounting hole 26 is formed in the mounting member 24, and the fixing member 25 has an insertion part 28 inserted into the mounting hole 26, and a pull-out stop section 31 for preventing the fixing member from pulling out from the mounting hole 26; the outer frame is fixed to the floor by the floor being sandwiched between the flange part and the fixing member 25 which is rotated downward from the floor; the mounting member 24 has a mounting part body 34 and a split body 35 detachably attached to the mounting part body 34; a part 55 of the mounting hole 26 is formed by the mounting part body 34, and a remaining part 56 of the mounting hole 26 is formed by the split body 35; and when the split body 35 is detached from the mounting part body 34, a part of the mounting hole 26 in the circumferential direction is opened.SELECTED DRAWING: Figure 8 【課題】床の厚さの変化に容易に対応することが可能な外枠の固定構造を提供する。【解決手段】外枠は鍔部と案内溝とを有し、外枠に、外枠を床に固定する固定装置６が設けられ、固定装置６は、案内溝に案内されて移動自在な取付部材２４と、取付部材２４に設けられた回動自在な固定部材２５とを有し、取付部材２４に取付孔２６が形成され、固定部材２５は、取付孔２６に挿入される挿入部２８と、取付孔２６から脱落するのを阻止する抜止部３１とを有し、鍔部と床の下方に回動した固定部材２５との間に床が挟まれることによって外枠が床に固定され、取付部材２４は、取付部本体３４と、取付部本体３４に着脱自在な分割体３５とを有し、取付孔２６の一部分５５が取付部本体３４によって形成され、取付孔２６の残りの部分５６が分割体３５によって形成され、分割体３５を取付部本体３４から取り外した場合、取付孔２６の周方向における一部が開放される。【選択図】図８