| 摘要 |
<p>The mattress is of a rectangular shape and made in dimensions matching the standard sizes of bed frames. One of its surfaces (1) is of a softer quality than the opposite surface. The level of rigidity is determined by T-shaped cuts (3) into the latex material which are of different depths and positioned at different distances. A mattress can be divided into zones (Z1, Z2, Z3, Z4, Z5, Z6, Z7) of varying levels of rigidity, according to the shape of the human body. The level of rigidity can also be different on both sides when a sprung mattress is used. The springs are covered with a layer of a softer or more firm material.</p> |
