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Safety belt system with a pretensioning device and AP force limiter

  • US 6,729,649 B1
  • Filed: 09/17/2001
  • Issued: 05/04/2004
  • Est. Priority Date: 11/13/1998
  • Status: Expired due to Term
First Claim
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1. A safety belt arrangement that includes a controllable blocking device that is sensitive to at least one of a vehicle and a safety belt, a tensioning device that when triggered eliminates slack in said safety belt, and a continuously effective force limiting device for limiting force exerted on said safety belt by forward displacement of a strapped-in occupant, said safety belt arrangement further comprising:

  • a time-controlled device for actively disengaging a drive of said tensioning device after a predetermined period of time has elapsed since the tensioning device was released after an accident, wherein after disengagement of the drive of the tensioning device, the force limiting device is deployed independently from and successively to deployment of the tensioning device, such that, during a tensioning process of the tensioning device, a forward displacement of a strapped-in occupant does not produce a force in the safety belt arrangement that deploys the force limiting device.

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