| 摘要 |
<p>A support deck (12) for a sofa bed (10) having a plurality of support members (110, 111) interconnected at joints such that when a force is applied to one side of the deck (12) the deck (12) will yield but when a force is applied to the opposite side, the deck (12) will be relatively resilient. The support members (110, 111) consist of molded plastic links which are serially and pivotally interconnected to form the deck from a number of generally parallel longitudinal columns of links. Each link includes a planar support surface (120) for supporting the mattress and a reinforcing rib (121) on the lower surface for added strength. Pivot pins (112) are used to interconnect the links and a stop (117) is provided on each end of the link to restrict the upward flexing or movement of the joined links. The links are economically and easily manufactured thereby providing a commercially competitive sofa bed (10) without detrimental aspects associated with prior sofa bed structures.</p> |
