Metal-sealing material-feedthrough and utilization of the metal-sealing material feedthrough with an airbag, a belt tensioning device, and an ignition device

An ignition device for airbags, said ignition device comprising a metal-sealing material-feedthrough including:

• a base body including a feedthrough opening formed by punching, a front side, and a back side, said base body being configured such that a ratio of a thickness of said base body to a maximum dimension of said feedthrough opening vertical to an axis direction of said feedthrough opening is in a range of between and including approximately 0.8 to 1.6, said thickness of said base body being between 1.8 mm and 3.0 mm;
• a sealing material, said sealing material being one of a glass slug, a ceramics slug, and a glass-ceramic slug;
• at least one first metal pin which is located in said feedthrough opening in said base body in said sealing material;
• and
• said feedthrough opening included a structure between said front side and said back side, said structure being configured for avoiding a relative movement of said sealing material in a direction toward said back side relative to an inside circumference of said feedthrough opening.

An ignition device for belt tensioning devices, said ignition device comprising a metal-sealing material-feedthrough including:

• a base body including a feedthrough opening formed by punching, a front side, and a back side, said base body being configured such that a ratio of a thickness of said base body to a maximum dimension of said feedthrough opening vertical to an axis direction of said feedthrough opening is in a range of between and including approximately 0.8 to 1.6, said thickness of said base body being between 1.8 mm and 3.0 mm;
• a sealing material, said sealing material being one of a glass slug, a ceramics slug, and a glass-ceramic slug;
• at least one first metal pin which is located in said feedthrough opening in said base body in said sealing material;
• and
• said feedthrough opening including a structure between said front side and said back side, said structure being configured for avoiding a relative movement of said sealing material in a direction toward said back side relative to an inside circumference of said feedthrough opening.