CHILD RESTRAINT SYSTEMS - HANDLING PERFORMANCE OF BUCKLES ON CHILD SEATS WITH REGARD TO OPENING FORCE REQUIREMENTS

The handling performance of two categories of buckles opening by means of a pressure button, ranging from 20-70 Newton, one with the pressure button opening mechanism in the middle of the buckle, the other with it on the side, were tested in an experiment where the following four areas were studied: 1) buckles, 2) women's ability to open the buckles with one and both hands, respectively, 3) women's selection of the most difficult buckle which they could accept for everyday use, 4) women's selection of age at which they felt it was permissible for children to open the buckles themselves. Eighty children between the ages of 2 1/2 and 4 1/2 and 200 women participated in the experiment. The results showed that the majority of women felt that children under 4 years of age should not be able to open the buckles themselves. Children under 4 were unable to open buckles at 50 Newton, whereas half of the children between 4 and 4 1/2 were able to do so. Buckles at 50 Newton were also an acceptable standard with regard to the women's ability to open them with one hand. This report is also available in German and in Swedish. /TRRL/

Media Info

  • Features: Figures; References;
  • Pagination: 17 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00137546
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Report/Paper Numbers: Report 66A
  • Files: ITRD, TRIS
  • Created Date: Oct 6 1977 12:00AM