Patent ID: 9190226
Filing Date: 2015-11-17
Classification: H01H,H03K

Abstract:
1. A switch comprising: a first casing; a second casing coupled to said first casing; an operation unit configured to be caused to operate by manipulation of an actuator, said actuator including a key; and a detection unit including a photomicrosensor configured to optically detect an operating state of said operation unit and outputting a signal concerning said detected operating state, wherein said operation unit is configured to be caused to operate by insert manipulation of inserting said key into said first casing when said key has a shape adapted to a shape of said operation unit, and not to be caused to operate by said insert manipulation when said key does not have a shape adapted to the shape of said operation unit, said operation unit in the operating state permits light of said detection unit to pass, and said operation unit in a non-operating state blocks said light, said first casing houses said operation unit and at least a part of said detection unit, and when said first casing and said second casing are separated from each other, said detection unit outputs a signal indicating that said operation unit is in a non-operating state.