| 摘要 |
In a highway type motor vehicle, a Multiple Stage Flexible Bumper comprising in combination a bumper bar mounted transversely across the front of the motor vehicle, multiple stage coil compression springs, a pair of spring seats to secure the ends of the springs, retainer bolts for securing the ends of the springs in the seats, longitudinal bolts, rivets or welds for securing the seats on one end of the springs to the vehicle frame, longitudinal bolts, rivets or welds for securing the seats on the other end of the springs to the vehicle bumper bar to form a completely flexible, 360 DEG unencumbered movement of the bumper bar around the axis of the longitudinal frame and allow the bumper bar to provide maximum protection from all types of angular collisions when the bumper bar strikes an obstruction before it or at the corner of it by means of telescoping multiple stage coil compression springs that have all stages firmly anchored at the inward ends at the vehicle frame and on the outward ends the primary springs stage one firmly anchored at the vehicle bumper bar with the outward ends of the helper springs floating loose within the inside diameter of the primary spring and the helper springs only being displayed when the bumper bar moves longitudinally against or laterally against said stages of helper springs in telescopic action providing increased resistance as the load increases and thereby the energy of motion is dissipated into the compression springs.
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