| 摘要 |
<p>The bed has two fiber layers (1, 2) with different widths and connected by stitching. The fiber layers are superimposed to form a central band and two side bands. The central band has a width of 90 or 215 cm and a density of 300 grams per square meters. Each side band has a width of 35 cm and a density of 150 grams per square meters. The stitched layers are covered with a fabric forming a cover (4). One of the side bands comprises fixation units (3) formed by two rows of inverted snap buttons or hook and loop fasteners. The buttons are fixed on the bed by traversing the layers and the cover.</p> |
