| 摘要 |
A waterbed frame structure including a rectilinear flotation mattress supporting platform, elongate anchor plates with top surfaces secured to the side portions of the platform, elongate, soft, resilient mattress retaining wall sections extending longitudinally of the anchor plates and having bottom surfaces overlying and opposing the top surfaces of the anchor plates, couplings pivotally connecting the wall sections to the anchor plates for upward and inward pivotal movement to allow for lateral inward movement of linen between the anchor plates and wall sections; and, linen-engaging ridges and linen-receiving grooves at the top surfaces of the anchor plates, the bottom surfaces of the wall sections normally yieldingly conform with the ridges and grooves; linen engaged between the anchor plates and wall sections is urged and held in conforming engagement between the conformed ridges and grooves of the anchor plate and the bottom surfaces of the wall sections.
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