Nursing bed with improved lifting mechanism
OwnerHans-Peter Bartheltinventor
Life of this patent
Estimating the term…
Abstract
A height-adjustable nursing bed is provided that includes a pedestal in which the upper frame and the lower frame are connected to one another by a total of four toggle lever pairs. The toggle lever pairs on each side of the bed are additionally connected to one another by horizontally and diagonally extending coupling braces. The horizontal coupling brace connects the toggle levers in the region of the toggle link while the diagonal coupling brace connects a lower toggle lever arm to an upper toggle lever arm. The motor for raising and lowering the upper frame relative to the lower frame extends directly between these two frames such that the toggle levers and their coupling braces act as a parallel linkage of sorts.
Claims13
1-12. (canceled)
A nursing bed including a multi-part bed frame for supporting a mattress, the bed frame having opposing lateral sides and a head end and a foot end comprising:
- a bed lifting mechanism that includes a pedestal and an upper frame on which the bed frame is arranged;
- a lever mechanism that connects the pedestal to the upper frame, the lever mechanism including on each of the lateral sides of the bed frame:
- a head end lower lever and a foot end lower lever, a lower end of each lower lever being coupled to the pedestal;
- a horizontal coupling brace that is pivotally connected to upper ends of both lower levers;
- a head end upper lever and a foot end upper lever, a respective upper end of each upper lever being pivotally coupled to the upper frame;
- and
- a diagonally extending coupling brace that is pivotally connected to a respective one of the upper levers between the upper and lower ends of said lever and to a respective one of the lower levers between the upper and lower ends of said lever;
- and
- a linear drive that extends from the pedestal to the upper frame.
Dependencies are inferred from the claim text.