• entrapment of adult fingers between window glass and seal entry of a motor vehicle side door: an experimental study for investigation of the force at the subjective pain threshold

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/06/01
    • تاریخ انتشار در تی پی بین: 1390/06/01
    • تعداد بازدید: 435
    • تعداد پرسش و پاسخ ها: 0
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    entrapment of adult fingers between window glass and seal entry of a motor vehicle side door: an experimental study for investigation of the force at the subjective pain threshold

    in modern motor vehicles with automatic power windows, a potential hazard exists for jam events of fingers between the window glass and seal entry. this study determined entrapment forces acting on adult fingers at the subjective maximum pain threshold during entrapment in such windows. the length and the girth of the proximal and distal interphalangeal joints of the triphalangeal fingers of the right hands of 109 participants (60 men, 49 women) were measured; the diameter was calculated from girth, which was assumed to be circular. the automatic power window system of a motor vehicle side door was changed to a mechanical system. during entrapment the force distributed across the four proximal interphalangeal joints (pips), and separately on the proximal interphalangeal (ipip) and then the distal interphalangeal (idip) joints of the index finger was measured using a customized force sensor. the maximum bearable entrapment force was 97.2±51.8 n for the pips, 43.4±19.9 n for the ipip, and 36.9±17.8 n for the idip. the positive correlation between finger diameter and maximum entrapment force was significant. particularly with regard to the risk to children's fingers, the 100 n statutory boundary value for closing force of electronic power windows should be reduced.

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