| 摘要 |
In longitudinal beams (9) of anti- bedsore bed frame, shafts (1) are fulcrumed mounted and equipped with worm wheels (8), fastened on at least one end of shafts (1), engaging with the worm (3) fulcrumed mounted in legs (10) of anti-bedsore bed frame. Shafts (1) are equipped with a set (41) of eccentrics (4), arranged on shafts (1) next to each other, forming with eccentrics (4) on adjacent shafts (1) rows (42) of eccentrics (4) and, in the same time, points of the maximal eccentricity of adjacent eccentrics (4) in separate sets (41) are angularly displaced advantageously of an angle of 180 DEG. |
