Seat belt system for motor vehicles

Claim 1

A RETRACTING DEVICE FOR SAFETY BELTS COMPRISING, A HOUSING, A PAIR OF AXIALLY-ALIGNED SHAFT SECTIONS IN SAID HOUSING, EACH SHAFT SECTION HAVING A BELT ATTACHED TO IT AND OPPOSITELY WOUND ON IT SO THAT A SIMULTANEOUSLY EXERTED WITHDRAWAL PULL ON BOTH OF THE BELTS CAUSES ROTATIVE MOVEMENT OF THE SHAFT SECTIONS IN OPPOSITE DIRECTIONS, A RATCHET DISK AT THE END OF EACH OF THE SHAFT SECTIONS, THE DISKS BEING OPPOSED TO EACH OTHER AND PRESENTING RATCHET TEETH TOWARD ONE ANOTHER, THE DISKS HAVING LIMITED AXIAL MOVEMENT ON THEIR SHAFT SECTIONS IN A MANNER TO CAUSE ENGAGEMENT OR DISENGAGEMENT OF THEIR RATCHET TEETH, PIN-AND-SLOT COUPLING MEANS BETWEEN THE DISKS AND THE SHAFT SECTIONS, THE SLOTS OF SAID COUPLING MEANS BEING INCLINED TO PROVIDE FOR THE LIMITED AXIAL MOVEMENTS OF THE DISKS ON THEIR SHAFT SECTIONS, AND WHEREBY A SIMULTANEOUS WITHDRAWAL PULL EXERTED ON BOTH BELTS WILL ROTATE THE DISKS IN OPPOSITE DIRECTIONS TO BRING THEIR RATCHET TEETH IN INTERENGAGEMENT AND CAUSE OPPOSITE ROTATIVE MOVEMENT OF THE SHAFT SECTIONS TO BE BLOCKED TO PREVENT FURTHER SIMULTANEOUS WITHDRAWAL MOVEMENTS OF THE BELTS FROM THE SHAFT SECTIONS.