Gas generator for air bag and air bag system

摘要

A gas generator is provided which is less likely to suffer from damages or peeling-off of a protruding seal tape during assembling of the generator, thus surely assuring a moisture preventive effect by the seal tape. In the gas generator for an air bag, a recess (100) is formed in a portion of a partition wall that divides a housing into an ignition means storage chamber (23) that stores igniting means (4) and a gas generating agent storage means that stores a gas generating agent, or in a portion (100') of a housing, to which a seal tape (52') is attached to close through-holes formed through the partition walls or housing. The depth and width of the recess (100;100') are equal to or larger than the thickness and width of the seal tape (52;52'). The seal tape (52;52') is attached such that its side edge portions are received in the recess (100;100'), so as to close the through-holes.