| 摘要 |
PCT No. PCT/SE79/00044 Sec. 371 Date Nov. 2, 1979 Sec. 102(e) Date Sep. 4, 1979 PCT Filed Mar. 1, 1979 PCT Pub. No. WO79/00689 PCT Pub. Date Sep. 20, 1979.A bed has a first frame structure (2,5,11,12) and a further frame structure (6). The first frame structure has a support surface (2) for a mattress or the like, and between the two frame structures is arranged at least one pivot-arm mechanism (14) for lifting the first frame structure up from the further frame structure and to cause, at the same time, lateral displacement in the width direction of the rectangular support surface and preferably also in its longitudinal direction. In the normal positions of the frame structure, the further frame structure has at least one longitudinally extending side part (24) located inwardly of the nearest side edge (4) of the support surface, and during said lateral displacement said side edge is moved towards and over said side part.
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