Multi-level load limit of the seat belt retractor

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A seat belt retractor, which includes: an installation into the retractor rotating around with a tube (1), in order to weave around the cylinder rota tion direction of traction or release of seat belts webbing. A locking ring (3) attached around one end with a tube. A locking lever to lock the lock ring will not rotate when the collision is detected. A load limiter around with a tube has been locked in front of the vehicle ride to the impulse to allow the seat belts woven thick with further release. The load limiter is a torsion bar (2), attached to the locking ring at one end at at the other end attached to the wound with a tube; and a wire releasably coupling around with the barrel and the locking ring between the path of the force. Elastic bodies, that is, the wire (4), after reversing the rotation of rod predetermined number of times, decoupling the elastic mechanism. Can choose the thickness, length and composition of the wire, together with the grades of steel wire, suitable for the standar d vehicle crash.
Sovereignty item
A seat belt retractor, which includes: a rotatably mounted within a frame (8) around with a tube (1), so that around the cylinder rotation direction of traction or release of seat belts woven thick with ; an attached around with the barrel end of the locking ring (3); to collision detection is used to lock the locking ring from rotating device (10); around with the barrel is locked in the vehicle ride those forward under the influence of the impulse, to allow the seat belts woven thick with further release of the load limiting device, which, the load limiting device includes a torsion bar (2), attached to the locking ring at one end at, in another one end attached to to the wound with the tube; and an elastic body (4; 41,4 b) releasably coupled in the path around with the barrel and locking force between the ring; in reversing lever a predetermined rotation number of used decoupling device of elastic bodies.