The Belt-fit Test Device (BTD) was developed for Transport Canada to enable the quantitative measurement of lap belt fit. The device is based on the SAE 3-dimensional H-Point machine. The H-point machine is converted to a BTD by the incorporation of 50th percentile adult lap and chest forms. The surface of the lap form is marked with graduated scales passing vertically through the positions of the two Anterior Superior Iliac Spines. The chest form is marked with two intersecting scales; one follows along the clavicles, the other passes down the sternum. To measure belt fit, the BTD is located in the test vehicle and the seat belt secured over the torso and lap forms in accordance with specified procedures. The belt fit measurement is the position of the edge of the belt on the scales. Preparations are now being made to propose the BTD in upcoming Canadian Motor Vehicle Safety Standards. For the covering abstract of the conference see TRIS 00663162.


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Filing Info

  • Accession Number: 00719381
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: HS-041 728
  • Files: HSL, TRIS, USDOT
  • Created Date: Mar 6 2000 12:00AM