SEAT BELTS. THE SIGNIFICANCE OF SOME MECHANICAL DEFECTS ON THE DYNAMIC PERFORMANCE OF NEW SEAT BELTS

BILBAELTEN. VISSA MEKANISKA SKADORS INVERKAN PAA DEN DYNAMISKA HAALFASTHETEN HES NYA BIBLAELTEN

With the purpose of determining the extent of strap damage which is acceptable for seat belts in annual automobile check-ups, three types of new three-point belts with emergency locking retractors were investigated with regard to the size of cuts in the upper part of the diagonal strap. The tests were carried out in accordance the ECE Regulation 16. The results showed that several of the approved belts have a very small margin of safety against breakage at the Standard R16 test and that a 10 mm cut in the belt reduces the breaking strength of the system by approximately 10 per cent. Another observation was that if breakage did not occur at the cut, it always occurred at the upper strap guide. It was also observed that shortly after the belts failed the buckles opened - a result for which no explanation was found. /TRRL/

• Corporate Authors:

  Swedish National Road and Transport Research Institute (VTI)

  Linköping,   Sweden  SE-581 95
• Authors:
  • Turbell, T
  • PETTERSSON, H E
• Publication Date: 1976

Language

• Swedish

Media Info

• Features: Figures;
• Pagination: 52 p.

Subject/Index Terms

• TRT Terms: Automobiles; Crash tests; Defects; Durability; Inspection; Loss and damage; Manual safety belts; Motor vehicles; Safety; Strength of materials
• ITRD Terms: 1614: Damage; 1648: Impact test (crash); 1665: Safety; 1476: Safety belt; 5544: Strength (mater)
• Subject Areas: Highways; Research; Safety and Human Factors; Vehicles and Equipment; I91: Vehicle Design and Safety; I95: Vehicle Inspection;

Filing Info

• Accession Number: 00159764
• Record Type: Publication
• Source Agency: Swedish National Road and Transport Research Institute (VTI)
• Report/Paper Numbers: Report No. 110 Monograph
• Files: ITRD, TRIS
• Created Date: Dec 27 1977 12:00AM