CL 600 (140.076) V12-6.0L (120.982) (1998)
/v12-6.0l_(120.982)/Page-2329002.png)
Force Limitation
After tensioning the seat belt the gas pressure in the gas generator cylinder (3) decreases. The pull cable (4) is relieved and the force on the cable pulley
(5) reduced.
The force exerted by the passenger on the seat belt then changes the direction of pull and the seat belt (1) attempts to unwind. This is prevented by the
outer locking pawls (8) in the toothed ring (6). The change in the direction of pull simultaneously causes a change in the direction of rotation of the
retractor shaft. Inertia and centrifugal force cause the outer locking pawls (8) on the toothed ring (6) to engage in the inner teeth on the locking ring (10).
As soon as a locking pawl is in contact with the teeth on the locking ring1the latter turns until it locks up.
The arrested locking ring causes the torsion rod (9) to arrest on one side. The torsion rod forms the heart of the retractor shaft and therefore takes up the
tension forces acting on the seat belt.
As soon as the force on the seat belt exceeds 4 kN, the torsion rod deforms plastically counteracting a further increase in the load and limiting the force.
