| 摘要 |
The present invention comprises a bumper frame having a link-structure and a sealed space therein, and a driver portion mounted on the backside of the bumper frame. In the bumper frame, a shock-absorbing portion comprising an airbag being divided by partitions and to define a honeycomb, and a buffering portion comprising an air cylinder are installed. The driver portion controls the air cylinder and the airbag through an air circulation line connected to the air cylinder and the airbag. Thus structured bumper is combined with an underframe having a guide rail thereon to perform a shrinking and expansion function. |
