Seat belt retractor with deactivatable locking system

摘要

A safety belt retractor for motor vehicles having a locking system controllable in a belt webbing-sensitive and/or vehicle-sensitive manner, a locking pawl (12) mounted on the belt shaft (1) which locking pawl can be moved into engagement with a housing-fixed tooth, wherein the locking system can be deactivated at least within a range of a predetermined belt extraction length, wherein a locking element (10) is provided for deactivating the locking system which locking element can be moved depending on the belt extraction length from a first position releasing the locking pawl (12) to a second position fixing the locking pawl (12).

主权项

1. A safety belt retractor for motor vehicles comprising a locking system configured to be deactivated at least within a range of a predetermined belt extraction length and controllable in a belt webbing-sensitive or vehicle-sensitive manner, the locking system including
a locking pawl (12) mounted on a belt shaft (1) and configured to move into engagement with a housing-fixed tooth (13), the locking pawl having a first guide in (16) guided along a first control contour (28), and a locking element (10) configured for deactivating the locking system by moving, depending on a belt extraction length, from a first position releasing the locking pawl (12) to a second position fixing the locking pawl (12), the locking element (10) including a restraint section (18) configured to abut the first guide pin (16) and to prevent the first guide pin (16) from moving radially outward such that the locking pawl (12) is prevented from engaging the housing-fixed tooth (13), wherein the movement of the locking element (10) from the first to the second position is controlled by a second guide pin (22) guided in a second control contour (23) and arranged on the locking element (10), and that the locking element (10), in the second position, is locked from moving in an outward radial direction by the second guide pin (22) in the second control contour (23).