Patent ID: 6419272
Filing Date: 2002-07-16
Classification: B60R,F15B,F16D

Abstract:
A seat belt pretensioner device, comprising:a fixed base unit defining an arcuate elongated chamber centered around a pivot center; an arm rotatably supported by said fixed base unit so as to be rotatable around said pivot center, said arm including a free end attached to a seat belt buckle, and a projection slidably received in said elongated chamber; a power generator adapted to produce a pressure by means of a combustion of a propellant provided at an end of said elongated chamber; and a bladder provided at an end of said power generator from which a gas is produced, said bladder designed to receive and contain said gas therein upon activation of said power generator so that said arm may be turned in a direction to pull said seat belt buckle and increase tension in a seat belt.