Patent ID: 7458121

Claim:
A health bed capable of adjusting the spine curve of a human body, comprising: a plurality of elevators enclosed by a mattress and a bed cover to from the health bed; each of said elevators arranged in an equal distance apart from each other; wherein each of the plurality of elevators comprises: a lower plate; a plurality of side plates; a plurality of upholders, wherein the plurality of upholders are disposed on top of the lower plate, and the height of the plurality of upholders is the same as the height of the plurality of side plates; a motor fixed at the center of the lower plate, the motor comprising a screw axle; a height sensor disposed on one of the plurality of side plates, wherein the height sensor generates height signals to actuate the motor; a control circuit that is connected to the height sensor and the motor; a motor-driven base comprising: a positioning trench; a plurality of holes through the bottom of the positioning trench at an equal distance apart from each other; a screw hole in the middle of the positioning trench for the axle to extend therethrough; a plurality of elastic objects, each one of the plurality of elastic objects corresponding to a single one of the plurality of holes; a sense stick corresponding to each one of the plurality of elastic objects, wherein each one of the sense sticks protrudes through one of said corresponding holes; and wherein the axle of the motor drives the motor-driven base upward or downward in response to height signals received by the control circuit.