A lie-down massager includes a base frame having an elongated top panel, through which an elongated top opening is formed centrally and lengthwise, a rider provided below the elongated top panel of the base frame, a guide member movably engaged between the base frame and the rider so as to enable th
A lie-down massager includes a base frame having an elongated top panel, through which an elongated top opening is formed centrally and lengthwise, a rider provided below the elongated top panel of the base frame, 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, massage bumps that move vertically and/or horizontally along the elongated top opening of the elongated top panel of the base frame, and a lifter that holds the massage bumps and adjusts the height of the massage bumps. The lifter includes two vertical screws that rotates together by a chain and two nuts engaging with the screws so that rotating the screws lift or lower the nuts thereby adjusting the height of the massage bumps. A motor rotates the screws via a worm gear.
대표청구항▼
What is claimed is: 1. 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
What is claimed is: 1. 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 having a top plate and a bottom plate, a first nut, a first screw, and a motor, wherein the top plate has a top upper surface portion and a top lower surface portion, wherein the bottom plate has a bottom upper surface portion and a bottom lower surface portion, wherein the first screw is vertically and rotationally attached to the bottom upper surface portion, wherein the first nut is fixed to the top lower surface portion, wherein the first screw engages with the first nut so that rotation of the first screw lifts the first nut or lowers the first nut, wherein the motor rotates the first screw in either clockwise or counterclockwise direction, wherein the lifter further comprises a second screw vertically and rotationally attached to the bottom upper surface portion, and a second nut fixed to the top lower surface portion, wherein the second screw engages with the second nut so that rotation of the second screw lifts the second nut or lowers the second nut, wherein the first screw and the second screw are spaced from each other by a predetermined distance, wherein the first screw and the second screw are connected by a power transmission device so that they rotate together, wherein the power transmission device includes a first sprocket wheel that is fixed to the first screw, a second sprocket wheel that is fixed to the second screw, and a chain that is wound around the first sprocket wheel and the second sprocket wheel; e) massage bumps attached to the top upper surface portion of the lifter and moving vertically and/or horizontally along the elongated top opening of the elongated top panel of the base frame. 2. The lie-down massager of claim 1 further comprising a pad covering the massage bumps and the elongated top opening of the base frame. 3. The lie-down massager of claim 1 wherein the massage bumps are partitioned to first and second pairs, wherein the first pair bumps are aligned parallel to the second pair bumps. 4. The lie-down massager of claim 3 further comprising: a) first and second bump holders propping and maintaining the first and second pair bumps above the top plate of the lifter, wherein the first and second bump holders are tapered toward each lower end thereof; and b) a first engagement member to rockingly engage the lower ends of the bump holders to the top plate of the lifter. 5. The lie-down massager of claim 4 further comprising a second engagement member to rollingly engage the massage bumps thereto. 6. The lie-down massager of claim 4 wherein the massage bumps are roller balls. 7. The lie-down massager of claim 6 wherein the roller balls are formed of jade. 8. The lie-down massager of claim 1 wherein each of the massage bumps includes a heater. 9. The lie-down massager of claim 8 wherein the heater is a heating lamp generating heat and infrared rays. 10. The lie-down massager of claim 1 wherein the guide member comprises: a) one or more roller gear engaged to and powered by a roller gear motor, wherein the roller gear motor is fixed to the rider; and b) one or more side rack gears parallel to each other and provided lengthwise in the base frame; wherein the roller gears are rollably connected to the rider and rotatably mounted on the side rack gears. 11. The lie-down massager of claim 1 wherein the guide member comprises: a) rider guide rollers provided on each side of the rider, wherein the rider guide rollers are rollably engaged to the base frame to guide a horizontally reciprocal movement of the rider; b) a pair of pulleys linked by a rope and respectively mounted in a front end portion and a rear end portion of the base frame, wherein a predetermined portion of the rope is fixedly attached to the rider so that the pulley rotation enables the rider to generate a horizontally reciprocal movement of the rider. 12. The lie-down massager of claim 11 wherein the pulleys are relatively twisted by 90 degrees against each other. 13. The lie-down massager of claim 1 further comprising: a) a pair of roller coasters parallel to each other, wherein the roller coasters are attached to the base frame, wherein each of the roller coasters has a substantially waved top surface; and b) coaster guide rollers formed outwardly extending from each side of the lifter, wherein the coaster guide rollers enable the lifter to make a roller coasting movement on and along the waved top surfaces of the roller coasters. 14. The lie-down massager of claim 13 wherein each of the waved top surfaces of the roller coasters substantially forms a curvature of a human spinal cord. 15. The lie-down massager of claim 13 wherein the lifter further comprises a plurality of elongated guides extending downward from the bottom lower surface portion of the bottom plate, and the rider further comprises a plurality of guide bushes upwardly formed on the rider to releasably receive the elongated guides so as to stabilize the roller coasting movement of the lifter along the roller coasters. 16. The lie-down massager of claim 15 wherein the elongated guides are shaped in pins. 17. The lie-down massager of claim 1 wherein the first nut and the second nut are integrated with the top plate of the lifter. 18. The lie-down massager of claim 1 wherein the lifter further comprises a worm wheel fixed to the first screw, and a worm gear fixed to the motor. 19. The lie-down massager of claim 18 wherein the massage bumps are partitioned to first and second pairs, wherein the first pair bumps are aligned parallel to the second pair bumps. 20. The lie-down massager of claim 19 further comprising: a) first and second bump holders propping and maintaining the first and second pair bumps above the top plate of the lifter, wherein the first and second bump holders are tapered toward each lower end thereof; b) a first engagement member to rockingly engage the lower ends of the bump holders to the top plate of the lifter; and c) a second engagement member to rollingly engage the massage bumps thereto. 21. The lie-down massager of claim 20 further comprising: a) a pair of roller coasters parallel to each other, wherein the roller coasters are attached to the base frame, wherein each of the roller coasters has a substantially waved top surface; and b) coaster guide rollers formed outwardly extending from each side of the lifter, wherein the coaster guide rollers enable the lifter to make a roller coasting movement on and along the waved top surfaces of the roller coasters. 22. The lie-down massager of claim 21 wherein each of the waved top surfaces of the roller coasters substantially forms a curvature of a human spinal cord. 23. The lie-down massager of claim 22 wherein the lifter further comprises a plurality of elongated guides extending downward from the bottom lower surface portion, and the rider further comprises a plurality of guide bushes upwardly formed on the rider to releasably receive the elongated guides so as to stabilize the roller coasting movement of the lifter along the roller coasters. 24. The lie-down massager of claim 23 wherein each of the massage bumps includes a heating lamp generating heat and infrared rays. 25. The lie-down massager of claim 1 wherein the massage bumps are round projections fixed to the top upper surface portion of the lifter.
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