Patent ID: 6668396
Filing Date: 2003-12-30
Classification: A61G

Abstract:
A turning mechanism for a patient confined to a bed, comprisinga power source including a left and a right power elements; a first and a second movable frames disposed on a bed, and each including an elongated rod portion, and two transverse rod portions connected to the elongated rod portion at upper ends thereof; the movable frames being pivotally connected to a bed at lower ends of the transverse rod portions to be pivotal between a tilted position and a horizontal one where the elongated rod portions are substantially faced with respective ones of two opposite long sides of the bed; a first and a second adjusting members each including: (a) two propping rods; (b) first and second transverse transmission shafts disposed at opposite ends of the bed; the transverse transmission shafts having two ends turnably supported with supporting elements, which are fixedly joined to respective ones of opposite long sides of the bed; the first transmission shaft being equipped with a first and a second toothed wheels at one end thereof; the second transmission shaft being equipped with a toothed wheel at one end; (c) two moving bases movably connected to respective transmission shafts; (d) a drive chain connected to the first toothed wheel of the first transverse transmission shaft and a corresponding power element for passing on rotary movement of the power element to the first transmission shaft; and, (e) a synchronizing chain passed over both the toothed wheel of the second transverse shaft and the second toothed wheel of the first transverse shaft for passing on movement of the first transmission shaft to the second shaft; the propping rods of the adjusting members being pivotally connected to middle portions of corresponding transverse rod portions of the movable frames at upper ends thereof; the propping rods of the adjusting members being pivotally connected to corresponding moving bases at lower ends thereof so that the moving bases move along respective transmission shafts to adjust position of the propping rods relative to corresponding movable frames when the corresponding power elements are in action, and in turn, the movable frames are adjusted in position; a sheet being connected to the elongated rod portions of the movable frames at two opposite long sides thereof.