| 摘要 |
The present invention relates to a water mattress with an expanding tube for cushion control, which is to have an improved structure over existing water mattress, capable of actively preventing the mattress from vertically sagging by separately controlling a pair of expanding tubes to change the volumes of the expanding tubes, and performing a cushion function at an accurate level by changing the thickness of the mattress depending on the circumstances. The mattress (110) comprises expanding tubes (130) formed on both ends thereof in a longitudinal direction (a vertical direction) to pressure and guide water in the mattress in a corresponding direction depending on whether the volume of each of the expanding tubes is expanded as air is injected, and thus the water mattress with an expanding tube can control and maintain the vertical thickness of the mattress by the movement and unequal distribution of water. |
