Patent ID: 7309041

Claim:
A belt-retractor device comprising: a belt-retractor spring-cassette housing, and a spring core configured to retain a driving spring, wherein the belt-retractor spring-cassette housing, the spring core, or a combination thereof is designed symmetrically so that driving springs of different torque directions are insertable into the belt-retractor device, wherein the spring core has two receiving openings suitable for hooking in the driving spring, wherein each of the two receiving openings has an outlet slot from which the driving spring emerges in an event of being unhooked from the spring core, and a hook-in region adjoining the outlet slot, wherein each of the hook-in regions extends concentrically with a central axis of the spring core, and wherein the hook-in region of one receiving opening extends in a counterclockwise direction as seen from its associated outlet slot and the hook-in region of the other receiving opening extends in a clockwise direction as seen from its associated outlet slot.