| 摘要 |
<p>The water mattress, has a water impermeable casing (1), and a device for changing the supporting force of the water mattress within the water impermeable casing, which is formed by a group of lifting body (3). The lifting bodies are primarily rigid blocks, whose specific weight is smaller than that of the water within the casing. The lifting bodies are distributed over the couch surface (2) and held relative to each other in fixed positions, particularly in form of a connected mat. The lifting bodies are made of cross linked polypropylene. An independent claim is also included for a method for the production of water mattress.</p> |
