| 摘要 |
PROBLEM TO BE SOLVED: To provide a cushion body for a vehicle seat capable of sufficiently exhibiting fitting feeling according to a foamed body constituting a surface layer part and properly exhibiting holding feeling according to a foamed body constituting center parts. SOLUTION: The cushion body 1 has a first center part 11 for receiving load from the vicinity of the upper part of thoracic vertebrae of a sitter, a second center part 12 for receiving load from the vicinity of the lower part of the thoracic vertebrae of the sitter, and a third center part 13 for receiving load from the vicinity of the lumbar vertebrae of the sitter, and the surface layer part 15 is arranged on the surface 111 of the first center part 11. The surface 151 of the surface layer part projects above the surfaces 121, 131 of the second and third center parts 12, 13. The surface layer part 15 is formed of a foamed urethane with a smaller rebound resiliency and greater hysteresis loss and rebound time than those of a foamed urethane constituting the first to third center parts 11 to 13. COPYRIGHT: (C)2005,JPO&NCIPI
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