Gas flow distributor for a gasbag module

An automotive air bag has a gas supply discharged thru a gas distributor with a flexible sleeve (H) made of two or more sections (T, T') joined by a seam that absorb the forces exerted by the gas discharge. The sleeve sections incorporate a supplementary separable join (V) between the sections (T, T'). The join (V) is released when gas flows through the sleeve (H).