A seat core material of the present invention is a seat core material for vehicle including: a thermoplastic resin expanded bead article; and a frame member embedded in a peripheral edge portion of the expanded bead article. The expanded bead article has two or more lightening parts in an area from a center portion as seen in a front-back direction to a rear side. A through or non-through slit is provided in a continuous part between the lightening parts or an area in front of the continuous part over a distance of 100 mm or less along a vehicle-width direction of the expanded bead article. The slit is closed at both longitudinal ends. It is possible to provide a seat core material with a sense of unity and a sufficient strength in which an expanded bead article becomes less deformed and the expanded bead article is very excellent in dimension accuracy even when a frame member is embedded in the expanded bead article and the expanded bead article and the frame member are integrated with each other.
SEAT CORE MATERIAL
SITZKERNMATERIAL
MATÉRIAU DE NOYAU DE SIÈGE
2021-10-20
Patent
Electronic Resource
English
METHOD FOR PRODUCING SEAT CORE MATERIAL, AND SEAT CORE MATERIAL
European Patent Office | 2018
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