Seat belt unit load limiting device for motor vehicle, has shifting unit that is shifted against resisting force that is exercised by resisting unit by activation of device and rotation of shaft in unwinding direction of strap

摘要

The device has a shifting unit (10) coupled to a belt winding shaft (1) of a seat belt unit. The shifting unit is shifted against a resisting force that is exercised by a resisting unit (18) and forms a belt supporting force, by the activation of the device and rotation of the shaft in an unwinding direction (7) of a belt strap (6). The resisting unit is so designed that the resisting power is adjustable.