Energy-absorbing restraint system

A system comprising:

• a housing and a rotor engaged with the housing, the housing and the rotor defining a cavity therebetween;
• a helical interface between the housing and the rotor, the rotor being moveable relative to the housing along the helical interface;
• a resilient material disposed in the cavity;
• a seat belt buckle connected to and moveable relative to one of the housing and the rotor;
• a cable extending from the seat belt buckle to one of the housing and the rotor, the cable is attached to both the seat belt buckle and one of the housing and the rotor;
• and
• wherein the rotor includes a circumference, the cable is wrapped around the circumference of the rotor in a retracted position.

A system comprising:

• a housing and a rotor engaged with the housing, the housing and the rotor defining a cavity therebetween;
• a helical interface between the housing and the rotor, the rotor being moveable relative to the housing along the helical interface;
• a resilient material disposed in the cavity;
• a seat belt buckle connected to and moveable relative to one of the housing and the rotor;
• wherein the housing includes a tube extending annularly about an axis, the cavity extends circumferentially along the tube;
• and
• wherein the helical interface is in the cavity on the tube of the housing.

A system comprising:

• a housing and a rotor engaged with the housing, the housing and the rotor defining a cavity therebetween;
• a helical interface between the housing and the rotor, the rotor being moveable relative to the housing along the helical interface;
• a resilient material disposed in the cavity;
• a seat belt buckle connected to and moveable relative to one of the housing and the rotor;
• an O-ring disposed in the cavity, the O-ring abuts both the rotor and the housing;
• and
• wherein the O-ring is disposed between the resilient material and the helical interface.