PURPOSE: To save trouble of holding an electronic equipment main body at the time of thread fastening work and other assembly by making it in temporary hooking structure by an L-type flange with a projection.

CONSTITUTION: By inserting a plural number of flange parts 1a installed on the bottom face of an electronic equipment main body 1 into square holes 2a opened on the upper face of a revolving table 2 and revolving them, semi- spherical projected parts 1b of the flange parts 1a of the electronic equipment main body 1 are fit in semi-spherical counter sunk recessed parts 2b of the revolving table 2 and fixed. Thereby, the electronic equipment main body 1 is temporarily fixed on the revolving table 2. Consequently, it is possible to save trouble of holding the electronic equipment main body 1 so that it is not detached from the revolving table 2 at the time of thread fastening work and other assembly.