Seat belt retractor for passenger restraining systems

摘要

On a belt retractor for vehicular seat belt restraining systems having a vehicle and belt sensitive automatic blocking mechanism (26) for the belt reel (12) rotatably mounted in the housing (10) the pawl tooth of a locking pawl (18) first coming into contact with the locking toothing (16) is formed as the control tooth (181). A control link (22) of the locking pawl (18) exhibits a radial stroke which is dimensioned so that the locking pawl (18) is swivelled by the control cam (24) up to first contact of the control tooth (181) with a tooth flank of the locking toothing (16) past which it is further swivelled unsubstantially at the most. After initial contact of the control tooth (181) with a tooth flank of the locking toothing (16) a torque is exerted by rotation of the belt reel on the locking pawl (18) as a result of which the locking pawl (18) is forced to swivel up to positive interlock of the pawl teeth (182, 183) with the locking toothing (16).