| 摘要 |
PROBLEM TO BE SOLVED: To reduce cost by making it possible to give different hardnesses to a cushion body respectively and simplifying a molding process or a molding structure without changing the filling density of a fibrous elastic body, a fibrous orientation, etc., when molding a cushion body. SOLUTION: In the cushion body having different hardness, a fibrous elastic body has differently hardened parts. The thickness of the fibrous elastic body is set so that it is thin in high hard parts 21 as compares with a standard hard part and thick in low hard parts 22.
|
