Protective device for a motor vehicle
View Patent ↗A protective device has a gas generator and a chamber that is limited by a stretchable membrane and is expandable through gas of the gas generator. The membrane is elastic and a stretchability of the membrane is limited at least in a first portion through a reinforcement.
1. A protective device comprising:
a gas generator; and
a chamber that is limited by a stretchable membrane and expandable through gas of the gas generator,
wherein the membrane is elastic and a stretchability of the membrane is limited at least in a first portion through a reinforcement, and a gas inlet opening of the chamber is formed in the first portion.
2. The protective device according to claim 1 , wherein the reinforcement is arranged on an outside of the membrane.
3. The protective device according to claim 1 , wherein the reinforcement is embedded in the membrane.
4. The protective device according to claim 1 , wherein a second portion is free of reinforcement.
5. The protective device according to claim 4 , further comprising a hard surface in front of which the chamber extends in the expanded state, wherein the second portion is located on a side of the chamber facing the hard surface.
6. The protective device according to claim 4 , further comprising a hard surface in front of which the chamber extends in the expanded state, wherein the second portion is located on a side of the chamber facing away from the hard surface.
7. A protective device comprising:
a gas generator; and
a chamber that is limited by a stretchable membrane and expandable through gas of the gas generator,
wherein the membrane is elastic and a stretchability of the membrane is limited at least in a first portion through a reinforcement, the reinforcement is arranged on an outside of the membrane, a second portion is free of reinforcement, and the first portion in the state expanded up to a stretch limitation comprises a region which tapers towards the second portion.
8. The protective device according to claim 7 , wherein the reinforcement comprises a net structure.
9. The protective device according to claim 7 , wherein the reinforcement comprises a textile material.
10. The protective device according to claim 1 , wherein the protective device is installed in a motor vehicle.
11. The protective device according to claim 10 , wherein a part of an outer skin of the motor vehicle forms a hard surface in front of which the chamber extends in the expanded state, wherein a second portion that is free of reinforcement is located on a side of the chamber facing the hard surface.
12. The protective device according to claim 10 , wherein the protective device is installed in order to expand into a passenger cell of the vehicle.