PROBLEM TO BE SOLVED: To provide a method to hook a chair table to an outer frame and a device that prevents the opening of an outer frame rear side vertical bar in a multifunctional wheelchair with an inner frame which includes an outer frame, an inner frame, and a chair table, and operates the crank to make the chair table go up and down, wherein: the outer frame has a space that stores a western style toilet from the rear side the inner frame has an inner frame pulley using a crank as a shaft at the upper side of a member that lies perpendicularly and the chair table has a chair table pulley at the upper side of a backrest.SOLUTION: An operating rod hook ring is connected under a horizontal rod that is right and left sides of a seat, right and left rods of the operating rod are penetration-connected slidably, a hooking thrust splinter is connected with the right and left rods, an enclosure splinter is disposed at the lower surface of the hooking thrust sprinter, a support rod that performs playing engagement in the inside of the enclosure splinter is erected perpendicularly to be connected with the outer frame, and an obstruction rod is connected under a right vertical bar of the outer frame, and is hooked to an obstruction rod hooking thrust splinter of the lower side of a left vertical bar.COPYRIGHT: (C)2013,JPO&INPIT【課題】 本発明は、外枠と中枠とイス台から成り、前記外枠は、後方から洋式便器を収納する空間を有し、前記中枠は、鉛直に位置する部材の上方にクランクを軸とする中枠滑車を有し、前記イス台は、背もたれ上方にイス台滑車を有し、前記クランクを操作して前記イス台を昇降する、中枠付多機能車椅子において、イス台を外枠に掛止する方法と外枠後方縦棒の拡開を防止する装置を提供する。【手段】座台の左側と右側の水平棒下方に操作棒掛止環を接続し、操作棒の左側と右側の棒を摺動自在に貫通接続し、左側と右側の棒に掛止突片を接続し、掛止突片下面に囲い片を設け、囲い片の内側に遊間嵌合する支持棒を、鉛直に立設して外枠に接続し、外枠の右側縦棒下方に阻止棒接続し、左側縦棒下方の阻止棒掛止突片に掛止する。【選択図】 図2