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US 4,303,209 AGranted
Tension reducer for dual spool retractor
AssigneeAllied Corporation
InventorRobert L. Stephenson
Life of this patent
Estimating the term…
Abstract
A dual spool seat belt retractor wherein the retraction force acting on the torso belt is reduced by connecting its rewind spring with the rewind spring of the lap belt. The connection may be made via a single shaft or a gear train.
Claims14
A dual spool seat belt retractor comprising:
- first spool means;
- first seat belt webbing attached to said first spool means and adapted to extend across the torso of an occupant of a vehicle;
- a first rewind spring operably connected to said first spool means to rewind said first seat belt webbing onto said first spool means and to permit extraction of said first seat belt webbing from said first spool means;
- second spool means;
- second seat belt webbing attached to said second spool means and adapted to extend across the pelvic region of said occupant;
- a second rewind spring operably connected to said second spool means to rewind said second seat belt webbing on said second spool means and to permit said second seat belt webbing to be extracted from said second spool means;
- and
- tension reducing means operable to reduce the rewind force of said first rewind spring acting on the torso of said occupant through said first seat belt webbing, said tension reducing means comprising:
- connecting means connecting said first and second rewind springs, said connecting means being operable to unwind said first spring means and thereby reduce its rewind force upon tightening of said second rewind spring in response to extraction of said second seat belt webbing from said second spool means.
6 more elements
Dependencies are inferred from the claim text.