专利名称：Belt tightener for seat belt
发明人：Kazuyoshi Isaji,Shinichi Iwai,Yutaka Ohashi申请号：US08/345816申请日：19941122公开号：US05607185A公开日：19970304
摘要：A pre-loader device that quickly tighten a seat belt after a sudden decelerationof a vehicle is detected is disclosed herein. The pre- loader device includes a mass bodyand a casing housing the mass body with the mass body being movable in the
longitudinal direction of the vehicle within the casing. A holder is positioned by a weakcoil spring, and a strong coil spring is disposed between a flange part of the mass bodyand a flange part of the holder. A retainer and the holder hold therebetween stoppersdisposed at the tip of plate springs that extend from the rear end of the mass body so asto position the mass body and maintaining the coil spring in a compressed state. A wireconnects the rear end of the mass body to a seat belt buckle.
申请人：NIPPONDENSO CO., LTD.
代理机构：Cushman, Darby & Cushman IP Group of Pillsbury Madison & Sutro LLP
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