| 摘要 |
PROBLEM TO BE SOLVED: To provide a cushion spring which is comfortable to sit in and excellent in fit feeling. SOLUTION: The cushion spring is configured by connecting and fixing a plurality of wave form main springs 1 fixed to side wires 4 by clips 3 with/to a single or a plurality of center springs 2 orthogonally crossing the main springs 1 by the clips 3. Coil springs are adopted as the center springs 2 to enable the center springs 2 using the coil springs to absorb unbalanced load and tensile stress loaded by body weight etc. COPYRIGHT: (C)2008,JPO&INPIT
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