Buckle component for a vehicle occupant restraint belt system

  • US 3,941,419 A
  • Filed: 11/21/1974
  • Issued: 03/02/1976
  • Est. Priority Date: 11/21/1974
  • Status: Expired due to Term
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First Claim
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1. In a vehicle occupant restraint belt system including a flat belt with an elongated configuration extending between upper and lower portions of the vehicle on one side of an associated seat, the belt having a predetermined width between opposite side edges thereof, a belt retractor receiving the upper end of the belt so as to store the belt and permitting withdrawal of the belt therefrom for use, and a fixed buckle component secured adjacent the other side of the seat, an improved sliding buckle component slidably disposed along the belt comprising:

  • a metallic housing including an attachment portion for selectively securing the sliding buckle component to the fixed buckle component so the belt defines angularly disposed lap and shoulder belt portions, the housing also including a downwardly projecting rectilinear locking portion extending transversely with respect to the elongated direction of the belt with approximately the same length as the width of the belt, the housing having upwardly extending flange portions defining a slot at each side of the housing, an external lock bar having a rectilinear portion extending alongside the locking portion of the housing with the belt received therebetween, the lock bar having a slightly greater length than the width of the belt and the housing and having end portions extending from the rectilinear portion about the side edges of the belt back toward each other in generally U-shaped configurations, the end portions of the lock bar being loosely engaged in the slots at each side of the housing and having first and second side edges which alternatively provide a pivot axis for pivotal movement of the lock bar relative the housing so that a manually applied upward pull on the shoulder belt portion when the buckle components are secured to each other pivots the lock bar about the first side edge of the locking bar end portions and away from the locking portion and slides the belt through the buckle component between the lock bar and housing to tension the lap belt portion, this tension of the lap belt portion pivoting the lock bar about the second side edge of the locking bar end portions toward the downwardly projecting locking portion of the housing to clamp the belt at the juncture between the angularly disposed lap and shoulder belt portions, and the configuration of the lock bar and the manner it extends about the edges of the belt permitting the lap and shoulder belt portions to extend in generally rectilinear configurations from their juncture at the rectilinear portion of the lock bar as well as permitting the housing to have a width equal to or less than the width of the belt.

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