Hole system

摘要

This disclosure relates to any airbag having two chambers sewn to each other. Due to bouncing effect between chambers a rapture on the seam occours. This due to, during deployment shape of one big hole is defomated which result in rupture on the seam. Changing one big hole to several small holes helps avoiding rapture between panels. Yarns among small holes avoids deformation. This system allow control the gas flow between two chambers.