Lockbar for a crash locking tongue and a method of assembly thereof

A lockbar in a crash locking tongue of a seat belt restraining system used in a vehicle, wherein the crash locking tongue includes the lockbar, a base plate having a lower portion and an upper portion, and a cover material overmolded onto the base plate;

• the lower portion of the base plate being configured to be reversibly coupled to a buckle in the seat belt restraining system and the upper portion of the base plate having a slot through which a belt webbing extends in order to restrain the movement of a passenger in the vehicle, the lockbar comprising:
• a back edge and a front edge, the front edge being configured to pass through the slot in the upper portion of the base plate;
• one or more fins configured to assist in positioning the lockbar in the slot;
• the fins being located on a bottom surface of the lockbar near the front edge;
• a pair of guide wings configured to prevent the lockbar and the overmolded cover material from becoming disengaged when the seat belt restraining system is in use, each of the guide wings being located on the back edge adjacent to opposite sides of the lockbar;
• a clamping surface that is in contact with the belt webbing;
• and
• an elastomeric spring;
• wherein the lockbar undergoes a vertical translation upon the occurrence of a vehicle accident, the vertical translation causes the clamping surface to apply an inward pressure on the belt webbing, thereby, reducing or eliminating movement of the belt webbing.