SAE J89A-1976
雪地车座椅的动态缓冲性能标准

DYNAMIC CUSHIONING PERFORMANCE CRITERIA FOR SNOWMOBILE SEATS

被代替

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标准号

SAE J89A-1976

发布

1976年

发布单位

美国机动车工程师协会

替代标准

SAE J89-1985

当前最新

SAE J89-2018

 

 

适用范围

This recommended practice encompasses the significant factors which determine the effectiveness of a seat system in limiting spinal injury during vertical impacts between, the rider and the snowmobile seat system. The recommended practice is intended to provide a tool for the development of safer snowmobile seats. It is recognized that the seat is only a portion of the entire vehicle protective suspension system. It is, however, usually required that the seat serve as added protection to the suspension system, since the latter may “bottom out” during a severe impact. The term “seat” refers to the occupant-supporting system not normally considered part of the vehicle suspension or frame system. In some cases, it may include more than the foam cushion.

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