| 摘要 |
An object coupling structure is provided to secure strong coupling force between a coupling hole and a coupling protrusion by installing an auxiliary coupling unit in the coupling protrusion to compensate for a gap between the coupling hole and the coupling protrusion. A structure for coupling objects to each other includes a coupling protrusion(11) which is provided on one of the objects(10), and a coupling hole(31) which is formed in the other object(30) such that the coupling protrusion is fitted into the coupling hole. An insert hole(11a) is formed through a surface of the coupling protrusion which is fitted into the coupling hole, and a "U"-shaped auxiliary coupling unit(50) is installed in the insert hole to surround part of the coupling protrusion, so that the coupling protrusion is firmly fitted into the coupling hole. The auxiliary coupling unit is inclined such that its thickness is tapered from the front end inserted into the coupling hole toward the rear end.
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