| 摘要 |
<p>A bed base with strips across is mounted on two lengthwise girders (1) which form the support frame for the strips (5). A series of vertical cavities (2) is positioned so that they are totally or partly open towards the inner sides of the lengthwise girders. The cavities have springs in (3) on which rest cylindrical extension pieces (4) of the ends of the strips. A plate (6) rests on the top of the spring, with the strip extension (4) in turn resting on the plate.</p> |
