< Topic >The case of operation of the bed leaving, engaging in floor etc of the user who is located on end face side vis-a-vis the time dynamic body which time motion possibly is supported in the base substance, when grip and the like is done, the base substance or the operational auxiliary equipment where can be evaded that it becomes the interference of operation of the bed leaving and the engaging in floor etc the part near the inboard turning driving axle belt of the time dynamic body with grip and the like is offered.SolutionsIt has base substance B and time dynamic body C. In order time dynamic body C the time to be able to move around the vertical time driving axle belt, it supports with base substance B. Time dynamic body C has basic one section Ca and outside one section Cb. Outside one section Cb is formed alongside the specified straight line which is retired from the time driving axle belt, with the intersection of the perpendicular line and the straight line which were lowered to the straight line from the time driving axle belt and the Tip of outside one section Cb, the end face of outside one section Cb is located. The end face of basic one section Ca and between the Tip form rectilinear condition in the plane view. Outside by the user who is located on end face side grip and the like of one section Cb can be done from one side outside diameter direction in the straight line.< Choice figure >Drawing 1【課題】基体に回動可能に支持された回動体に対し、基端側に位置する使用者の離床、就床等の動作の際の把持等が行われる場合に、基体又は回動体のうち回動軸線付近の部分が把持等による離床、就床等の動作の妨げとなることが回避され得る動作補助装置を提供する。【解決手段】基体Bと回動体Cを備える。回動体Cが垂直回動軸線のまわりに回動し得るよう基体Bにより支持する。回動体Cは、基方部Caと外方部Cbを有する。外方部Cbは、回動軸線から離隔した所定の直線に沿って形成され、回動軸線から直線に下ろした垂線と直線との交点と、外方部Cbの先端との間に、外方部Cbの基端が位置する。基方部Caの基端と先端の間は平面視において直線状をなす。基端側に位置する使用者による外方部Cbの把持等が直線の径方向外方側から行われ得る。【選択図】図1
