| 摘要 |
The invention discloses a mattress, as for a hospital bed, an assembly of inflatable bellows spring segments being interposed between the under side of the mattress and a support box therefor which may be said to correspond to the conventional bed spring supporting slats under the springs of conventional mattresses. All of the adjustments offered by conventional hospital bed frames, and more, may be made for the mattress of this invention by virtue of the shapes into which the combinations of spring bellows segments may be inflated. The invention, in effect, employs a careful selection of bellows spring segment shapes, not only to provide a wide range of positional adjustments of the mattress, but these segments may serve, cooperatively, to provide the springs of the mattress, also with the degree of spring or cushioning effect being infinitely adjustable by virtue of the selective inflation of bellows segments, and the selectivity provided as to degree of inflation of the respective bellows.
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