Chrysler 2005 Crossfire SRT6 Service Manual page 1488

8O - 132 RESTRAINTS - SERVICE INFORMATION
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FORCE LIMITATION
After tensioning the seat belt, the gas pressure in the
gas generator cylinder (1) decreases. The pull cable
(2) is relieved and the force on the cable pulley (4)
reduced.
The force exerted by the passenger on the seat belt
then changes the direction of pull and the seat belt (8)
attempts to unwind. This is prevented by the outer
locking pawls (3) in the toothed ring (5). 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 (3) on the toothed ring (5) to engage in
the inner teeth on the locking ring (7).
As soon as a locking pawl (3) is in contact with the
teeth on the locking ring (7) the latter turns until it
locks up. The arrested locking ring (7) causes the tor-
sion rod (6) to arrest on one side. The torsion rod (6)
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 (6) deforms, counteracting a further increase in
the load and limiting the force.
As soon as the force on the seat belt decreases, the locking pawls in the toothed ring and the pawls on the cable
pulley return to their initial position as the seat belt is retracted. The locking and retracting functions of the inertia
reel are effective again.
Triggering of the emergency tensioning retractors is
indicated by the open viewing window (1) on the ten-
sioning system housing
In the event of another collision, the normal protective
function of the seat belt is still available. The retractor
shaft is locked up by the locking system without ten-
sioning and force limitation so that the entire force is
taken up.