Load limiting seatbelt retractor
AssigneeFord Global Technologies, LLC
InventorsDean M. Jaradi, Mohammad Omar Faruque, S. M. Iskander Farooq
Life of this patent
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Abstract
A vehicle includes a seatbelt retractor. The seatbelt retractor includes a housing. The seatbelt retractor includes a spool having a first end and a second end each rotatably supported by the housing. The spool is elongated on an axis from the first end to the second end. The seatbelt retractor includes a torsion bar having a first end fixed to the first end of the spool and a second end operatively engaged with the housing. The torsion bar has a central cavity. The seatbelt retractor includes a heating filament disposed in the central cavity.
Claims17
A seatbelt retractor comprising:
- a housing;
- a spool having a first end and a second end each rotatably supported by the housing, the spool being elongated on an axis from the first end to the second end;
- a torsion bar having a first end fixed to the first end of the spool and a second end operatively engaged with the housing;
- the torsion bar having a central cavity;
- and
- a heating filament disposed in the central cavity.
Dependencies are inferred from the claim text.