Pretensioner for safety belt system, has pyrotechnical drive in flow connection with oblong channel, and blade lug extending between two walls of channel, where walls comprise variable distance to each other over length of channel

摘要

The pretensioner has a drive unit (16) movably supported in a housing (12), and a blade lug movable between initial and end positions. An oblong channel (30) is formed in the housing, and a pyrotechnical drive (34) provided for the drive unit stays in flow connection with the channel. The lug extends between two walls (28, 32) of the channel, where the walls comprise a variable distance to each other over a length of the channel.