Linear drive for vehicle safety belt tensioner comprises piston which slides in cylinder and has rack mounted on top which cooperates with pinion to turn belt roller, rack having spring which biases it away from pinion

摘要

The linear drive for a vehicle safety belt tensioner comprises a piston (22) which slides in a cylinder (16). This has a rack (24) mounted on top which cooperates with a pinion (12) to turn the belt roller (14). The rack has a spring (38) mounted above the rack which biases it away from the pinion.