汽车座椅安全性检查Safety Check2022/10/18 2Safety CheckS1,S2S1 S2:Distance from H point to headrest top surface at headrest full down/up position along torso angle沿着靠背躯干线，从H 点到头枕最低( 最高) 位置的上表面的距离.OKGB15083-2006 / ECE R17 高度750mm 以下无使用位置，头枕高度不应低于 800mm头枕处于最低位置Headrest in lowest position头枕处于最高位置Headrest in highest position2022/10/18 3Safety CheckS3S3:Section through headrest perpendicular to torso line and 65mm downward from headrest top surface垂直靠背躯干线，从头枕上表面65mm 向下的头枕截面GB15083-2006 / ECE R17 170mm for the
