BUMPER ENERGY ABSORBER AND MANUFACTURE THEREOF

• Main Authors: IIDA SHIYUUJI, NAKAI KIYOTAKA
• Format: Patent
• Language: English
• Published: 14.05.1991
• Subjects: PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

PURPOSE:To contrive the lightness of weight and the improvement or the like of shock absorbing ability with an energy shock absorbing unit and a bumper beam for mounting to a car body formed into an integral structure by cylindrically molding a continuous glass fiber impregnated with resin. CONSTITUTION:In a bumper energy shock absorber 1, by molding a continuous glass fiber 3, impregnated with resin 4, into a cylindrical shape, for instance, of square cylindrical and lattice shape, a shock absorbing unit 1 and a bumper beam for mounting to a car body are formed as an integral structure. In manufacture, first a plurality of glass fibers 3 are impregnated with the epoxy resin 4 and wound in an oblique shape 5 on surfaces in a rotating angular pillar mandrel core material 2 with a half-finished product obtained. Next the half- finished product is thermo-setting processed, and by contraction-removing the madrel core material 2, a finished product is obtained. In this way, the lightness of weight of the shock absorbing unit 1, improvement of shock absorbing ability, reduction of a number of part items and the facilitation or the like of mounting are attained.