OPW airbag

A one-piece woven (OPW) airbag having warp threads and weft threads, which are woven together in at least three woven fabric layers, a lower fabric layer (UG), an upper fabric layer (OG) and a middle fabric layer (MG) arranged therebetween, wherein

• a) the OPW airbag (LS), arranged along a longitudinal axis (LA), has a front portion (VA), a middle portion (MA) and a rear portion (HA),
• b) a generator mouth (GEM) for receiving a generator (G) and adjacent thereto an inflow region (ESB) are arranged in the front portion (VA),
• c) an upper main chamber (OK) and a lower main chamber (UK) are arranged in the middle portion (MA),
• d) a first plurality (EVZ) of lower stiffening chambers (UQVK), extending along the longitudinal axis (LA) and transversely thereto, is arranged in the rear portion (HA) between the middle fabric layer (MG) and the lower fabric layer (UG),
• d) a second plurality (ZVZ) of upper stiffening chambers (OQVK), extending transversely along the longitudinal axis (LA), is arranged in the rear portion (HA) between the middle fabric layer (MG) and the upper fabric layer (OG),
• f) each lower stiffening chamber (UQVK) is associated with at least one upper stiffening chamber (OQVK), being narrower compared to said lower stiffening chamber,
• g) the lower stiffening chambers (UQVK) are each spaced apart by lower woven seams (UWN),
• h) bridge chambers (BK), which cover the lower woven seams (UWN), are arranged between the middle fabric layer (MG) and the upper fabric layer (OG).