| 摘要 |
A safety system for a vehicle having a chassis, including two parallel spaced-apart legs and an axle assembly for each of the wheels, includes a suspension assembly including an air piston arrestor pivotably coupled between the chassis and one of the axle assemblies, a device for arresting the air piston arrestor in a relatively rigid, non-compressible state, an electromechanical device for activating the arresting device and a retractable bumper assembly.
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