Assessment of timely lockup of web-sensing restraint retractors

Mark R. Cannon, Donald K. Eisentraut, Dennis F. Shanahan

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper presents a review of web-sensitive locking retractors that are designed to prevent webbing payout of occupant restraint systems in emergency conditions. Investigation of the design and function of such devices reveals variables that affect their operation, which, when properly considered, allows the designer or user to assess their suitability in various applications. A description of web-sensing locking retractors and an explanation of their theory of operation shows how design, manufacturing, and application variability can affect their desired performance. Changes to design, manufacturing methods and testing procedures, and reconfiguration of applications are considered to improve their reliability.

Original languageEnglish (US)
Title of host publicationSAE Technical Papers
StatePublished - 2002
Externally publishedYes
EventGeneral Aviation Technology Conference and Exhibition - Wichita, KS, United States
Duration: Apr 16 2002Apr 18 2002


OtherGeneral Aviation Technology Conference and Exhibition
Country/TerritoryUnited States
CityWichita, KS

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering


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