| 摘要 |
PURPOSE:To make it possible to prevent a back part mattress from forcing a waist mattress toward sides of feet while eliminating possible obstacle during use from right alongside the waist of a user when a back part frame is erected. CONSTITUTION:This floor erecting type bed has a link mechanism 11 to guide an operation of erecting or tilting operation of a back part frame 1 and a center point D of the erecting or tilting is set at point higher than the back part frame 1 being tilted. The link mechanism 11 is set at a position lower than the center point D of the erecting or tilting operation or the top surface part of the back part frame 1 being tilted. |
