| 摘要 |
PCT No. PCT/EP96/00191 Sec. 371 Date Sep. 12, 1996 Sec. 102(e) Date Sep. 12, 1996 PCT Filed Jan. 18, 1996 PCT Pub. No. WO96/22200 PCT Pub. Date Jul. 25, 1996The coupling between the belt drum of a belt retractor and a belt pretensioner rotary drive renders possible the manufacture of the functional parts of a metallic light constructional material such as a light alloy. The belt drum (12) possesses a molded externally toothed coupling wheel (16). With the output shaft (20) of the belt pretensioner rotary drive (18) a drive disk (22) is connected, which bears two pivotally mounted coupling pawls (28). In a neutral or rest position thereof these coupling pawls are held by a return spring clear of the periphery of the coupling wheel (16) and may be pivoted inward into an engagement position in engagement with such coupling wheel.
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