US Patent 7093312 Single motor adjustable bed

An adjustable bed including a stationary frame is supported with legs above a floor. An articulated deck comprising head, seat, leg and foot deck boards hingedly joined together is spaced above the frame with connectors. The connectors include generally inverted U-shaped foot and seat tubes pivotally secured to the frame and secured to the seat and foot deck boards. A motorized drive assembly is operatively coupled to the head deck board and includes arms with are pivotally secured to the frame. Activation of the motorized drive assembly moves the deck boards.