| 摘要 |
A belt retractor ( 10 ) is suitable especially for use in an adaptive seat belt system and has a rotatable belt roll ( 14 ), a rotary member ( 18 ) that can be connected in a torsion-proof manner to the belt roll ( 14 ), and an actuator ( 32; 72 ) which generates an actuating force and acts upon at least one frictional element ( 22, 22 ') in order to engage said frictional element ( 22, 22 ') with the rotary member ( 18 ) that can be connected in a torsion-proof manner to the belt roll ( 14 ) so as to decelerate a rotational movement of the belt roll ( 14 ). An arrangement for self-reinforcing the actuating force generated by the actuator ( 32, 72 ) is disposed between the actuator ( 32; 72 ) and the rotary member ( 18 ).
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