PROBLEM TO BE SOLVED: To improve a rotation structure provided between a fixed frame and a rotating side frame of a bedside.SOLUTION: A frame rotation structure of a bedside comprises: a pressing operation part whose upper end protrudes upward and whose base end is inserted into a movable side cylinder part an operation member extending downward while being fixed to the pressing operation part, and capable of moving upward and downward inside a rotary shaft part supported pivotally in a fixed side cylinder part a lifting engagement part for restricting and locking the rotation of the rotary shaft part by engaging with a fixed engagement receiving part and a combination of a guide part and an engaging projection part, which separates the lifting engagement part from the fixed engagement receiving part and maintains a lock release posture. The rotary shaft part fixed to a movable member can be rotated by each predetermined angle to open and close a rotating side frame with respect to a fixed side frame.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2017,JPO&INPIT【課題】本発明は、ベッドサイドの固定フレームと回転側フレームとの間に設けられる回転構造の改良に関する。【解決手段】 上端が上方に突出し基端が可動側筒部内に挿入された押圧操作部と、該押圧操作部に固定されて下方に伸びると共に、固定側筒部内で軸受された回転軸部内で昇降可能な作動部材とを有し、固定係合受部と係合して回転軸部の回転を規制してロックする昇降係合部と、昇降係合部を固定係合受部から離間させてロック解除姿勢を維持するガイド部と係合突部との組み合わせを有し、可動部材に固定された回転軸部を所定の角度毎に回転して回転側フレームを固定側フレームに対して開閉しうることを特徴とする。【選択図】図3
