Problem to be solved: to provide a bed of various sizes while suppressing the change of the form of the support frame.Solution: a base body, a first movable member 33 pivoting about a rotary shaft 22 positioned above the frame body, a connected member to which a plurality of panel members 16 are connected, and a connecting means capable of connecting the panel members of various forms having different lengths to the above connected members in common, and A bed device 10 having a support frame 12 having a support frame 12.The first movable member is coupled to a coupled member so that the member is set below the pivotal axis when the member is in the horizontal state, and the support frame supports a plurality of panel members having equal lengths to each other, and when the panel member is viewed in a cross-section perpendicular to the longitudinal direction of the panel member The dimensional shape is equivalent over the entire length of the panel member in the longitudinal direction.Diagram【課題】支持架台の形態の変更を抑えつつ、多様な大きさの寝台を提供する。【解決手段】架台本体と、前記架台本体よりも上方に位置する回動軸２２回りに回動する第１可動部材３３と、複数のパネル部材１６が連結された被連結部材と、長さが異なる様々な形態の前記パネル部材を共通して前記被連結部材に連結可能な連結手段と、を有する支持架台１２を備えた寝台装置１０。第１可動部材は、被連結部材が水平状態のときに、被連結部材が前記回動軸の下方になるように、被連結部材と連結され、支持架台は、互いに長さが同等とされた複数のパネル部材を支持し、パネル部材を同パネル部材の長手方向に直交する断面で見た場合の寸法形状が、パネル部材の前記長手方向の全長にわたって同等である。【選択図】図１
