FRONT CRASH ENERGY ABSORPTION APPARATUS FOR THE VEHICLE WITH A PLURALITY OF CRASH ENERGY ABSORPTION STEPS USING THE PROPERTY OF HIGH-STRENGTH AND HIGH-ELONGATION MATERIALS

摘要

PURPOSE: The crash energy is gradually absorbed and the crash acceleration diminishes to maximum and the flotation of passenger is minimized.;CONSTITUTION: A front crash energy absorption apparatus for the vehicle with a plurality of crash energy absorption steps comprises a first and second deformable unit(120,110), an expansion guiding unit(130), a front side member(140). The expansion guiding unit is combined in the end part of the first deformable unit. The second deformable unit combined in the end part of the expansion guiding unit. It is arranged in a extension line(121a) of the expansion guiding unit and the first deformable unit. The front side member is projected from the front of the car body to the engine room. The second deformable unit is combined in the front side member attachably and detachably. In former the front side member is plastically deformed with the crushing. The first deformable unit is plastically deformed for the absorption of the collision energy with tubular to the first. It is plastically deformed with crushing to the second. The second deformable unit successively absorbs the collision energy. The second deformable unit is thereafter plastically deformed the first deformation of the first deformable unit with crushing.;COPYRIGHT KIPO 2011