EARTHQUAKEPROOF FIXING METHOD OF APPARATUS ON GRATING BED

PURPOSE: To fix an appliance simply by an operation only on the floor by inserting a vertical bar of a T-shaped jig into a L-shaped jig which is in touch with a side face of an appliance and grating floor so as to perform temporary bolting, and inserting a support member of the T-shaped jig between grating bearing bars and rotating the support member to make it bridge over the undersides of bars. CONSTITUTION: A horizontal portion 32 of an L-shaped jig 30 abuts on a bearing bar 2a of a grating 2. A T-shaped jig 20 comprises a support member 21 that can bridge over the undersides of two or more bearing bars 2a; and a vertical bar 22 projecting from the support member 21 and having a bolt-like end. The vertical bar 22 is inserted into a bolt hole formed in the horizontal portion 32 of the L-shaped jig 30 so as to temporarily bolted. The support member 21 is inserted between the bearing bars 2a and is rotated to bridge over the undersides of the bars 2a, thereafter a net 24 is deadly bolted. As a consequence, an appliance can be fastened to the grating floor only by the operation on the floor, specifically, by fastening the L-shaped jig 30, whose vertical portion 31 is previously fixedly attached to a side surface of the appliance, onto the bearing bars 2a.