Belt reel for a vehicle safety restraint arrangement and method for limiting the retraction speed of a belt during retraction onto a belt reel
AssigneeVolvo Car Corporation
InventorTomas Bergman
Life of this patent
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Abstract
A vehicle safety restraint arrangement includes a retractable and extractable belt, a belt reel on which the belt is windable, a retraction mechanism adapted to retract the belt from an extracted position, and a belt retraction brake adapted to limit the retraction speed of the belt during retraction of the belt by imparting a braking force to the belt reel during retraction of the belt via inductance. The present disclosure also relates to a method for limiting the retraction speed of a belt arranged on a belt reel.
Claims20
A vehicle safety restraint arrangement comprising:
- a retractable and extractable belt;
- a belt reel on which the belt is windable;
- a retraction mechanism adapted to retract the belt from an extracted position;
- and
- a belt retraction brake adapted to limit the retraction speed of the belt by imparting a braking force to the belt reel during retraction of the belt, the braking force of the belt retraction brake being impartable to the belt reel via inductance so that the braking force is not applied via friction between the belt retraction brake and the belt reel.
A vehicle safety restraint arrangement comprising:
- a retractable and extractable belt;
- a belt reel on which the belt is windable;
- a retraction mechanism adapted to retract the belt from an extracted position;
- and
- a belt retraction brake adapted to limit the retraction speed of the belt by imparting a braking force to the belt reel during retraction of the belt, the braking force of the belt retraction brake being impartable to the belt reel via inductance, wherein the belt retraction brake is a passive belt retraction brake, such that the belt retraction brake requires no voltage source to operate.
A vehicle safety restraint arrangement comprising:
- a retractable and extractable belt;
- a belt reel on which the belt is windable;
- a retraction mechanism adapted to retract the belt from an extracted position;
- and
- a belt retraction brake adapted to limit the retraction speed of the belt by imparting a braking force to the belt reel during retraction of the belt, the braking force of the belt retraction brake being impartable to the belt reel via inductance, the belt retraction brake comprises a magnet portion attached to the belt reel at one end of the belt reel and including a plurality of poles, and an inductor positioned outside of an outer periphery of the one end of the belt reel and having two legs that extend toward the one end of the belt reel.
Dependencies are inferred from the claim text.