Impactable vehicle restraint

An impactable vehicle restraint comprising:

• a carriage body having at least one vertical member;
• a rotatable drive shaft disposed at least partially within the carriage body and extending through the at least one vertical member;
• a barrier disposed at least partially within the carriage, the barrier being linearly movable between a first position and a second position;
• a force translator coupled to and between the rotatable drive shaft and the barrier, the force translator causing the barrier to move between the first and second position as a result of the rotatable drive shaft;
• said force translator comprising over toggle means, said over toggle means including a drive member having a first end and a second end a lift member having a first end and a second end, the lift member having a race formed at or near the second end thereof, wherein the drive member first end is coupled to the drive shaft the drive member second end is in sliding engagement with the lift member race, the lift member first end being pivotably coupled to the carriage body, and the lift member second end is in sliding engagement coupled to the barrier;
• and
• wherein the force translator further comprises a first stop linkage coupled to the carrier body and a second stop linkage coupled to the carrier body, wherein the first stop linkage is adapted to limit the rotation of the drive member in a first direction and the second stop linkage adapted to limit rotation of the drive member in a second direction.