| 摘要 |
In a manufacturing method for hollow panels (10) wherein highly rigid, lighter and various shapes of hollow panels constructed by layering board material made from fibers, wood elements, or wood strands can be obtained economically, wood strands 17 on which a binder is added are layered with a plurality of cores 18, a thermal compression molding is performed on this layered material uniformly, cores 18 are extracted after the thermal compression molding, and thus ribs (12) and holes (11) are formed in the panel. Also in the core (18) is a bar which may be of irregular shape, and the core can be a combination of bars having the same or different cross sections. The cores are joined by joining boards (19) in a direction of the short dimension of the core (18). <IMAGE> |
