| 摘要 |
PROBLEM TO BE SOLVED: To provide a cushion structure which has an improved joint strength between a stereoscopic network structure part and a foam part.SOLUTION: A permeable membrane 21a is arranged on the boundary between a stereoscopic network structure part 11 and a foam part 41. Liquid foam raw material can permeate the permeable membrane 21a, the stereoscopic network structure part 11 is impregnated with the foam raw material via the permeable membrane 21a and, thereafter, is solidified and, thereby, the stereoscopic network structure part 11 and the foam part 41 are joined. The foam raw material impregnated to the stereoscopic network structure part 11 is solidified while coming into contact with a plurality of resin wires of the stereoscopic network structure part 11 in a wide area. Therefore, a cushion structure 100a having an improved joint strength between the stereoscopic network structure part 11 and the foam part 41 can be provided. Further, only by arranging a cushion structure component into an upper mold and a lower mold and performing foaming process, a joint body between the stereoscopic network structure part 11 and the foam part 41 is completed. As the result, the productivity is improved. |
