Abstract: A seat belt pretensioner mechanism (40) includes a part (36) for attachment to the seat belt (20). A strap (50) is connected to the part (36). A piston (78) and piston rod (58) are movable in a first direction to move the strap (50) and the part (36) to tension the seat belt (20). A pivot connection (59, 62) between the piston rod (58) and the strap (50) causes the strap to move with the piston rod. A cam (70) pivots the strap (50) about the pivot connection (59, 62) and effects movement of the part (36) toward the piston rod (58) as the piston (78) and the piston rod move in the first direction.

Abstract: Apparatus (10) for helping to protect an occupant of a vehicle (12) which has a side structure (16) comprises a vehicle occupant protection device (14) that is inflatable into a position between the side structure of the vehicle and a vehicle occupant. The vehicle occupant protection device (14) includes an inflatable bladder (40) contained within an outer shell (42) and completely unattached to the outer shell. An inflation fluid source (24) provides inflation fluid for inflating the inflatable bladder (40). The inflatable bladder (40) is made of gas impermeable material having overlying portions (48) that are sealed together in an airtight manner by a radio frequency weld (50). The outer shell (42) provides structural support for the inflatable bladder (40).

Abstract: An apparatus (47) determines presence, type, and a size value of a vehicle occupant (14) located within a vehicle (12). A first capacitive sensor (46A) is located on a first side of an occupant location within the vehicle (12) and senses a first capacitance value. An associated drive/monitor circuit (42A) provides a first signal (44A) indicative of the first capacitance value. A controller (27) determines from the first signal (44A) whether the first capacitance value is indicative of an occupant located proximate to the first capacitive sensor (46A). The controller (27) determines a first distance between the first capacitive sensor (46A) and the occupant (14) using the first signal (44A). A second capacitive sensor (46C) is located on a second side of the occupant location and senses a second capacitance value. An associated drive/monitor circuit (42C) provides a second signal (44C) indicative of the second capacitance value.