Shock-absorber e.g. for vehicle seat belts - includes hollow cylinder with piston sliding in it on drive rod, with retaining nut on piston end of this rod, and spring biassing this piston

摘要

The shock-absorber includes a cylinder (1) with piston head (2) mounted on a piston rod (3) sliding in this cylinder.There is a cap (4) screwed to the top of the cylinder allowing the piston rod to reciprocate through it via. a sealed guide port (7). The piston head (2) is attached by the nut (6) to the piston rod (3) which is attached at its upper end to the seat belt or its reel. The rod is anchored at its lower end by a bolt (8) to the belt anchorage. The piston is normally retracted by the spring (5), and its extension is damped by the working fluid. USE/ADVANTAGE - Used at the anchorage of vehicle safety belts, with the advantage of reducing discomfort and injuries caused by the belt during sudden deceleration of the vehicle.