SCREW COUPLING STRUCTURE FOR PREVENTING LOOSENESS AND METHOD FOR MANUFACTURING SCREW COUPLING STRUCTURE FOR PREVENTING LOOSENESS

摘要

The present invention relates to a screw coupling structure for preventing looseness, more specifically, to a screw coupling structure for preventing looseness between a screw and a coupling unit which comprises: an expanded screw part with a predetermined length; and a coupling unit having a screw hole to be coupled by insertion of the screw part. The screw part is made of a shape-memory alloy. The shape-memory alloy is deformed if external force is applied to the shape-memory alloy at a lower temperature than a predetermined threshold temperature. The deformation of the shape-memory alloy is restored by applying a higher temperature than the threshold temperature.;COPYRIGHT KIPO 2016