Seat belt retractor
AssigneeBreed Automotive Technology, Inc.
InventorsMartin Specht, Christian Liedl
Life of this patent
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Abstract
A seat belt retractor has a belt reel mounted rotatably around a reel axis on a retractor frame and biased by a motive spring. A load limiter is non-rotatably connected to a rotatable spool of the belt reel. A rotor can be coupled to the belt reel and/or its load limiter by a coupling. The coupling is supported against axial displacement on an adapter flange connected rigidly to the retractor frame. The rotor transmits a torque generated by an electric motor.
Claims14
A seat belt retractor comprising a belt reel mounted rotatably around a reel axis on a retractor frame and biased by a motive spring, a load limiter non-rotatably connected to a rotatable spool of the belt reel and a rotor that is coupled to the load limiter by a coupling, the rotor transmits a torque generated by an electric motor to the load limiter to influence load limiting function, wherein the coupling comprises an annular carrier connected non-rotatably to the load limiter for guiding coupling elements between a released position and an engaged position wherein the annular carrier is arranged coaxially around a bearing collar provided on the rotor and is supported against axial displacement on both sides of an adapter flange.
Dependencies are inferred from the claim text.