PROBLEM TO BE SOLVED: To form a bed device simply and firmly. A couch constituting member (60) constitutes at least a part of a couch (11) supported by a supporting table (12), is fixed to the supporting table (12), and has a drive mechanism attached thereto. A pair of fixing members 61, which are arranged on the support frame 12 at intervals and are fixed to the support frame 12, and a connecting member 62 which connects the pair of fixing members 61 are provided. [Selection diagram] Figure 8【課題】寝台装置を簡素で強固に形成する。【解決手段】寝台構成部材６０は、支持架台１２に支持される寝台１１の少なくとも一部を構成し、支持架台１２に固定されるとともに駆動機構が取り付けられる寝台構成部材６０であって、支持架台１２上に間隔をあけて配置され、支持架台１２に固定される一対の固定材６１と、一対の固定材６１を連結する連結材６２と、を備えている。【選択図】図８
