CEILING-EMBEDDED LUMINAIRE

摘要

A ceiling-embedded luminaire facilitating embedding of an luminaire body in a ceiling regardless of the size of the luminaire and allowing reliable installation of the luminaire body in the ceiling. A holding part for holding an engagement member (4) and a guide groove formed downwardly and continuously from the holding part are provided in a support member (3). A first engagement part (4a) engageable with the holding part of the support member (3) and a second engagement part (4b) engageable with the rear side of the ceiling (T) are formed on the engagement member (4). When the engagement member (4) is rotated in a first direction about a vertical axis, the first engagement part (4a) is engaged with and held by the holding part and the second engagement part (4b) comes to be disengaged from the ceiling (T). When the engagement member is rotated in a second direction opposite to the first direction, the engagement between the first engagement part (4a) and the holding part is released, the engagement member is lowered along the guide groove by biasing force of an elastic member (5), and the second engagement part (46) is engaged with the ceiling (T).