AIRBAG INSTALLED IN A REAR LOWER PART OF A LARGE TRUCK FOR PREVENTING ACCIDENT BY DEPLOYING THE AIRBAG IN PUSHING A VEHICLE INTO THE REAR LOWER PART OF THE TRUCK

摘要

PURPOSE: An airbag for preventing infiltration into the rear part of a truck is provided to restrict the vehicle from being infiltrated into the lower part of the truck, and to prevent the accident by mounting the airbag at both sides of the rear part of the truck at a rear-end collision. CONSTITUTION: A rear bumper is installed in the rear part of a vehicle for absorbing impact at a rear-end collision, and composed of an airbag(10) installed in the lower part of a loading compartment of the truck, a rear bumper fixing bar pulled back by impact at the rear-end collision, an impact sensor(30) installed in the rear bumper to output the signals according to impact in applying shock to the rear bumper, an angle measuring sensor(40) mounted in the fixed position of the rear bumper fixing bar to output the signals by measuring the angle in pulling the rear bumper fixing bar back, and a control unit(50) outputting the control signal by receiving signals from the impact sensor and the angle measuring sensor.