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Impact Performance of Certified Bicycle Helmets Below, On and Above the Test Line.
Annals of Biomedical Engineering ( IF 3.8 ) Pub Date : 2019-11-25 , DOI: 10.1007/s10439-019-02422-x
Alyssa L DeMarco 1 , Dennis D Chimich 1 , Stephanie J Bonin 2 , Gunter P Siegmund 1, 3
Affiliation  

Bicycle helmets are effective in reducing many head injuries, but their effectiveness could be improved if they provided protection over a larger range of impact locations. We sought to quantify the impact performance of 12 helmet models below, on and above the CPSC prescribed test line. All helmets were drop tested at an impact speed of 6.2 m/s. One helmet adequately attenuated impacts below the CPSC limit of 300 g for all impact locations tested below, on and above the test line. Five helmets met this limit for impacts on or above the test line as required in the CPSC standard, but failed to meet it below the test line (not required in the standard). The remaining six helmets failed to meet the criterion on and/or above the test line. Our findings indicate that consumers should not assume that all portions of a helmet provide adequate and equivalent protection. Our findings also suggest that the CPSC's current system of self-regulation and self-testing by manufacturers does not prevent substandard bicycle helmets from being sold. Public availability of manufacturers' impact test data, an independent testing panel, and/or a wider distribution of impact locations are needed to better protect bicyclists.

中文翻译:

测试线以下,上方和上方的认证自行车头盔的冲击性能。

自行车头盔可有效减少许多头部受伤,但如果在更大范围的撞击位置提供保护,自行车头盔的有效性将得到提高。我们试图量化12种头盔模型在CPSC规定的测试线之上和之上的冲击性能。所有头盔均以6.2 m / s的撞击速度跌落测试。对于在测试线下方,上方和上方测试的所有冲击位置,一副头盔均能将CPSC限制低于300 g的冲击充分衰减。根据CPSC标准的要求,有五个头盔达到了对测试线以上冲击的限制,但未能达到测试线以下的冲击(标准中不需要)。其余六个头盔未达到测试线之上和/或之上的标准。我们的研究结果表明,消费者不应认为头盔的所有部分都提供了足够且等效的保护。我们的发现还表明,美国消费品安全委员会(CPSC)当前的制造商自我监管和自我测试系统并不能阻止不合格自行车头盔的销售。需要公开提供制造商的冲击测试数据,独立的测试小组和/或分布更大的冲击位置,以更好地保护骑自行车的人。
更新日期:2019-11-01
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