| 摘要 |
A bed foundation (1) has a rectangular top panel (14) and opposite side (16) and end panels (18) depending downwardly from the top panel to form a box-like enclosure having an open lower end, the panels being formed integrally. A support structure of raised ribs (110, 112) in a predetermined regular pattern is formed integrally on the lower surface of the top panel. The foundation is made entirely or substantially entirely from an expanded rigid plastic foam material with high flame retardancy. |
