| 摘要 |
PROBLEM TO BE SOLVED: To provide a foam highly expanded to be enhanced in cushioning properties, heat resistance, lightweight properties, floating properties, sound absorbing properties or the like, capable of realizing the ensurance of rigidity by simple operation and capable of being attached to other member in a freely detachable manner. SOLUTION: The foam 1 has reinforcing ribs 24, each of which is formed by curving a skin layer so as to have a U-shaped cross section or folding back the skin layer so as to have a V-shaped cross section, provided on its single surface and also has projected or recessed locking parts 3 provided on the same surface thereof. Each of the locking parts may be provided to a part high in expansion ratio or may be provided to a non-foamed part or a part low in expansion ratio but the latter is preferable in order to strongly fix the locking part to the foam. COPYRIGHT: (C)2004,JPO |
