The Ergonomic Research and Design Evaluation of Child Car Safety Seating Device

The purpose of this study is emphasized on searching for the ergonomic child safety seating design to reduce the neck injuries during forward car collision. The new designed prototype of ergonomic safety seat, featuring with two cushions under the seat, buffering device in the back-rest support and lowery placing the child restrain belt through the rear side of the seat, is suitable for the use of those children with weight ranging from 9 to 18 kilograms. The forward car collision experiment was performed in National Vehicle Research Center. Results of the collision experiment show that the new designed ergonomic safety seat can decrease by 30.19 percent, comparing with the national standard value, in the portion of head acceleration and also can decrease by 12.34 percent in the portion of chest acceleration under the conditions of standard impact velocity and maximum simulated car acceleration. The collision experiment also reveals that the new ergonomic designed seat can obviously eliminate the acceleration value in comparison with the conventional standard safety seat in the areas of dummy child’s head, neck and chest according to the real dynamic impact detection reports.