Patent ID: 6890313

Claim:
A lie-down massager, comprising: a) a base frame having an elongated top panel, wherein an elongated top opening is formed centrally and lengthwise through the elongated top panel; b) a rider provided below the elongated top panel of the base frame; c) a guide member movably engaged between the base frame and the rider so as to enable the rider to make a horizontally reciprocal movement relative to the base frame; d) a lifter comprising a top member and a bottom member, one or more link assemblies, a screw shaft and a lifter motor, wherein each of the link assemblies comprises one or more links and a nut block, wherein the nut block engages with the screw shaft and the lifter motor rotates the screw shaft, wherein the screw shaft is rotatably attached to the bottom member, wherein each of the links comprises a top end that is rotatably attached to the top member and a bottom end that is rotatably attached to the nut block, whereby the link assembly moves the top member up and down as the screw shaft is rotated by the lifter motor in either clockwise or counterclockwise direction, wherein the top member is surrounded by the bottom member so that the top member is guided by the bottom member when the top member is moved up and down, e) massage bumps attached on the top member of the lifter and moving vertically and/or horizontally along the elongated top opening of the elongated top panel of the base frame.