To provide a vehicle seat core material that is less likely to cause breakage such as cracks for a foamed particle molded product of a hooking tool embedded part provided in an insert member even in a vehicle seat core material in which the insert member is embedded inside a foamed particle molded product composed of foamed particles having a through hole.SOLUTION: A vehicle seat core material 100 includes: a foamed particle molded product 10 in which foamed particles each having a through hole are fused to each other; and an insert member 30 having a hooking tool 32 embedded in the foamed particle molded product. An average porosity of the entire foamed particle molded product is 5 vol.% or more. A porosity of a hooking tool embedded part with respect to the average porosity of the entire foamed particle molded product is 0.95 or less.SELECTED DRAWING: Figure 1
【課題】貫通孔を有する発泡粒子で構成される発泡粒子成形体の内部にインサート部材を埋設してなる車両用シート芯材にあっても、インサート部材に設けられた掛け止め具埋設部の発泡粒子成形体に、亀裂等の破断が生じ難い車両用シート芯材を提供すること。【解決手段】貫通孔を有する発泡粒子が相互に融着してなる発泡粒子成形体10と、該発泡粒子成形体に埋設された掛け止め具32を有するインサート部材30とからなる車両用シート芯材100であって、上記発泡粒子成形体全体の平均空隙率が5体積%以上であり、上記発泡粒子成形体全体の平均空隙率に対する掛け止め具埋設部の空隙率が0.95以下である車両用シート芯材とした。【選択図】図1
VEHICLE SEAT CORE MATERIAL
車両用シート芯材
2021-09-27
Patent
Electronic Resource
Japanese
European Patent Office | 2020
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