Patent ID: 9580933
Date: 2017-02-28
CPC Classifications: E05B,G01D

Claim:
1. An apparatus for detecting opening and closing of a door, the apparatus comprising: a sensor unit moves with respect to a first member and configured to detect an opening and closing of a door; a loading unit coupled to the sensor unit and configured to be folded and rotated with respect to a folded unit attached to the sensor unit when a back set distance from a side surface of the door to a center line of an indoor unit is smaller than a predetermined value, and configured to be inserted into an installation groove of the indoor unit; and a case coupled to the loading unit when the back set distance from the side surface of the door to the center line of the indoor unit is larger than the predetermined value, and separated from the loading unit when the back set distance from the side surface of the door to the center line of the indoor unit is smaller than the predetermined value.