Belt pretensioner arrangement for motor vehicle seat belt, comprises first sensor co-acting with a second belt pretensioner unit and activating it by operation of the first belt pretensioner unit

摘要

The seatbelt pretensioner arrangement comprises a first belt pretensioner unit (3) which works together with a first sensor (1). The first sensor additionally co-acts with a second belt pretensioner unit (6) and activates it by operation of the first belt pretensioner unit. The first pretensioner unit is formed as an irreversible, pyrotechnic unit.