Bertocci G, Ha D, Deemer E, Karg P
Injury Risk Assessment and Prevention Laboratory, Department of Rehabilitation Science and Technology, University of Pittsburgh, Pittsburgh, PA 15260, USA.
Arch Phys Med Rehabil. 2001 Apr;82(4):534-40. doi: 10.1053/apmr.2001.19740.
To evaluate the crashworthiness of commercially available hardware that attaches seat surfaces to the wheelchair frame.
A low cost static crashworthiness test procedure that simulates a frontal impact motor vehicle crash.
Safety testing laboratory.
Eleven unique sets of drop-hook hardware made of carbon steel (4), stainless steel (4), and aluminum (3).
Replicated seat-loading conditions associated with a 20g/48 kph frontal impact. Test criterion for seat loading was 16,680 N (3750 lb).
Failure load and deflection of seat surface.
None of the hardware sets tested met the crashworthiness test criterion. All failed at less than 50% of the load that seating hardware could be exposed to in a 20g/48 kph frontal impact. The primary failure mode was excessive deformation, leading to an unstable seat support surface.
Results suggest that commercially available seating drop hooks may be unable to withstand loading associated with a frontal crash and may not be the best option for use with transport wheelchairs.
评估将座椅表面连接到轮椅框架的市售硬件的防撞性能。
一种低成本的静态防撞测试程序，模拟正面碰撞的机动车事故。
安全测试实验室。
11组由碳钢（4组）、不锈钢（4组）和铝（3组）制成的独特的吊钩硬件。
复制与20g/48公里/小时正面碰撞相关的座椅加载条件。座椅加载的测试标准为16,680牛（3750磅）。
座椅表面的失效载荷和挠度。
所有测试的硬件组均未达到防撞测试标准。所有硬件在低于20g/48公里/小时正面碰撞中座椅硬件可能承受的载荷的50%时就失效了。主要失效模式是过度变形，导致座椅支撑表面不稳定。
结果表明，市售的座椅吊钩可能无法承受正面碰撞相关的载荷，可能不是与运输轮椅一起使用的最佳选择。
