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Occupant Preferred Back Angle Relative to Head Restraint Regulations
ISSN: 1946-3995, e-ISSN: 1946-4002
Published April 12, 2010 by SAE International in United States
Citation: Kolich, M., "Occupant Preferred Back Angle Relative to Head Restraint Regulations," SAE Int. J. Passeng. Cars – Mech. Syst. 3(1):626-632, 2010, https://doi.org/10.4271/2010-01-0779.
Having, by now, introduced several new vehicles that comply with FMVSS 202a, manufacturers are reporting an increased number of complaints from consumers who find that the head restraint is too close; negatively affecting their posture. It is speculated that one of the reasons that head restraints meeting the new requirement are problematic is that the FMVSS backset measurement is performed at a back angle that is more reclined than the back angle most drivers choose and the back angle at which the seat / vehicle was designed. The objective of this paper is to confirm this hypothesis and elaborate on implications for regulatory compliance in FMVSS 202a.