| 摘要 |
PURPOSE:To replace a body support part with a simple structure, and prevent a bedsore caused by lowered circulation of the blood by providing a fixed stand where plural projecting parts are formed in the width direction and a moving stand where plural openings are formed in the width direction, and swinging the moving stand in the vertical movement and width directions by air bags. CONSTITUTION:Air bags 3 of an air bag type driving device are respectively arranged in upper side parts of leg parts 1 to support the four corners of a fixed stand 2, and the four corners of a moving stand 4 are supported by the air bags 3. The air bag type driving device is provided with a directional control valve controlled by a timer or a switch, and supplies pressurized air from a hose 5 or discharges air in the air bags 3. Plural projecting parts 6 are formed in the width direction on the fixed stand 2, and plural openings 7 are formed in the width direction on the moving stand 4, and the moving stand 4 is freely swung so as to do the vertical movement and width directions, and the projecting parts 6 of the fixed stand 2 are protruded in and retreated from the openings 7 of the moving stand 4, and a body support part is changed. |
