초록 ▼

The invention is a fiber reinforced thermoplastic automotive bumper wherein the reduced fiber additions consist of a long, chopped glass mat with the addition of mineral fillers such as mica, talc or clay. The modified thermoplastic is used to produce I-section bumpers. The improved reinforced therm

The invention is a fiber reinforced thermoplastic automotive bumper wherein the reduced fiber additions consist of a long, chopped glass mat with the addition of mineral fillers such as mica, talc or clay. The modified thermoplastic is used to produce I-section bumpers. The improved reinforced thermoplastic material has favorable flow characteristics which enable the material to substantially fill the deep ribs and mounting stay structures used in I-section bumpers during compression molding while improving the modulus or cross-face stiffness of the finished part. For the first time, improved flow characteristics during molding permit the material to flow evenly into small ribs, bosses and other features. The invention makes it possible to increase part integration, molding pencil braces, fascia supports, mounting holes and mounting stays. The front surface of the bumper may be covered with a conformal energy absorber made of plastic foarn. Moreover, the absorber serves to mount appearance fascia. The result is a cost-reduced, weight-reduced bumper with improved impact resistance.

대표청구항 ▼

[ What is claimed is:] [1.]1. A fiber reinforced thermoplastic automotive bumper, comprising:a front portion;a rear portion; and,at least one cross-member; wherein,said front portion, said rear portion, and said at least one cross-member are molded from a fiber reinforced thermoplastic material havi

[ What is claimed is:] [1.]1. A fiber reinforced thermoplastic automotive bumper, comprising:a front portion;a rear portion; and,at least one cross-member; wherein,said front portion, said rear portion, and said at least one cross-member are molded from a fiber reinforced thermoplastic material having mineral fillers.