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Passive seat belt system

  • US 4,053,175 A
  • Filed: 05/12/1976
  • Issued: 10/11/1977
  • Est. Priority Date: 07/17/1974
  • Status: Expired due to Term
First Claim
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1. A passive seat belt system for a motor vehicle comprising:

  • a belt coupled at its one end to a vehicle door and having inner thin space therein extending from said one end to the other end;

    a seat belt retractor secured to a floor of a motor vehicle and having a retracting reel rotatably received therein for windingly retaining said belt and a coil spring coupled to said retracting reel for normally biasing said reel in a belt retracting direction;

    belt reinforcing means of flat strip type inserted at its one end into said inner thin space of said belt through an opening provided thereon;

    reel means rotatably mounted in said vehicle door for windingly retaining said belt reinforcing means; and

    driving means mounted in said vehicle door and coupled to said reel means for extending said belt reinforcing means when said vehicle door is opened, said belt reinforcing means extending through said inner thin space in accordance with the extension thereof driven by said driving means, andsaid driving means retracting said belt reinforcing means when said vehicle door is closed, and thereby said belt reinforcing means is retracted from said inner thin space.

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