Standard polymer crash box design for frontal crash protection of lcv/mcv/tipper truck cabin

摘要

The present invention provides a crash box assembly of front bumper for commercial vehicles which absorbs sufficient levels of energy during vehicular front collision and minimizes energy absorption at the vehicle cabin area as much as possible. The crash box assembly comprises a pair of crash boxes, having high energy absorbing plastic crash boxes, a cross member pipe, a pair of front cross members and a pair of crumple boxes. The crash boxes are attached to the front cross members using cross member brackets. Both the front cross members are connected to each other using a cross member pipe. The cross members are mounted on the side frames of the vehicle. The crumple boxes are mounted on the side frame bars and they provide support to the front cross members. Thus, the kinetic energy is absorbed by the crash boxes during the frontal collision and remainder of the energy is transferred to the cross members and to the crumple boxes and further to the vehicle frame.