Flexible element for triggering indication device of a seat belt prtensioner

摘要

Release of a belt tensioner of a motor vehicle safety belt is indicated by a helically-shaped flexible member of a thermoplastic plastic. Pref. plastic is polyamide, polyester or polyacetal; alternatively polyoxymethylene homopolymer or polyoxymethylene copolymer. The helically-formed portion pref. has a trapezoidal cross section, is elliptically flattened and has 1 to 10 turns. The indicator can consist e.g. of an indicator portion (1) attached to a helically-formed portion (2) and attachment portion (3).