| 摘要 |
PURPOSE:To provide a bed-bottom lift mechanism suitable for a collapsible household bed. CONSTITUTION:Lifting leg members 10, 11 are attached, respectively, to head and leg side frames 2a, 2c into which a frame 2 is split, and auxiliary stays 12, 13 are connected to the middle portions of the respective lifting leg members 10, 11 to assist in restraining the movements of the lifting leg members 10, 11. Female screw members 14, 15 are attached to the respective lifting leg members 10, 11 and screw shafts 16, 17 are engaged in the respective female screw members 14, 15 and made operable in conjunction with each other by connecting a connecting rod 20 to connecting pipes 18, 19, and a motor 21 is connected to the end portion of the screw shaft 16. The mechanism can thus be simplified and becomes particularly suitable for a collapsible household bed. |
