Patent ID: 7424984

Claim:
A seatbelt retractor for retracting a security belt windable and unwindable from a belt shaft that is rotatably supported in a housing, the seatbelt retractor comprising: a tensioning drive that acts upon the belt shaft and that, upon triggering, rotates the belt shaft in a wind up direction of the security belt, the tensioning drive including a first component that, upon release of the tensioning drive, initially initiates a rotation in a pull out direction and a second component, the two components being set into movement relative to one another upon triggering of the tensioning drive and the tensioning connection being arranged without a connection to the housing of the seatbelt retractor on the belt shaft and rotating in common, before the triggering of the seatbelt retractor, with the belt shaft; a reverse movement stop is arranged between the first and second components of the tensioning drive; and a blocking element that can be triggered in a belt-sensitive and/or vehicle-sensitive manner for blocking the rotation of the belt shaft in an unwinding direction, the blocking element being retained on the first component and being, via the movement of the first component, steered into its blocking position, the belt shaft being connected with the second component of the tensioning drive, which second component is rotated in the wind up direction by reason of the application of a drive force occurring in connection with the first component that is fixedly disposed, wherein the reverse movement stop is arranged between the first and second components of the tensioning drive and is continuously effective in the extension direction and runs in a free running condition in the wind up direction.