Belt retractor for a seat belt device of a motor vehicle with a rotary tensioning device and a force limiting device

摘要

Belt retractor for a safety belt device of a motor vehicle with a rotary tensioning device (2) and a first force limiting device (1) with a vehicle-fixed U-shaped frame (3) with two parallel legs, - a rotatable in the legs of the U-shaped frame (3 ), a two-part belt shaft with a belt shaft body (4) on which a safety belt (5) can be wound, and a profile head (7) which is locked to the frame (3) fixed to the vehicle, wherein - the first force limiting device (1) the profile head (7) connects to the belt shaft body (4), wherein - the tensioning device (2) and the profile head (7) are arranged on different sides of the belt shaft body (4), and - the belt shaft body (4) is hollow, and - a transfer rod (6) is provided, which extends through the belt shaft body (4) and with a first end (12) rotatably with the tensioning device (2) and with a second end (11) rotatably connected to the profile head (7), wherein - between the transfer rod (6) and the belt shaft body (4) is rotatably connected to one of the two parts ring (18) is provided characterized in that - the first force limiting device (1) is formed by at least one metal strip (21) connected at one end to the transfer rod (6), which extends radially outwards from the transfer rod (6), in at least one deflection point (22 ) is deflected, and with a free end (23) in the winding direction on the belt shaft body (4) is supported, or with a free end during the rotation of the belt shaft body (4) relative to the profile head (7) on a stop (29, 30) of the belt shaft body (4) comes into abutment, wherein - the ring (18) has a pocket (24) into which the metal strip (21) engages with a finger (25).