Safety device with elastic membrane
View Patent ↗In various embodiments, a safety device for a motor vehicle is provided. The safety device includes an elastic membrane, which partially or completely delimits a hollow space, which is provided for an accident-initiated filling subject to elastically expand the membrane. The elastic membrane is covered by a separate envelope in a gas-tight manner, which provides an opening through the expansion of the membrane.
1. A safety device for a motor vehicle, comprising:
an elastic membrane, which partially or completely delimits a hollow space, which is provided for an accident-initiated filling subject that elastically expands the membrane, and having an escaping active substance,
a catalyst for a removal of the escaping active substance; and
an active overlaying substance for active overlaying of the escaping active substance, and
wherein the elastic membrane is covered by an envelope in a gas-tight manner, which provides an opening through the expansion of the membrane.
2. The safety device according to claim 1 , wherein the envelope is a flexible or dimensionally stable design.
3. The safety device according to claim 1 , wherein the envelope is fastened to at least one of a carrier and the elastic membrane.
4. The safety device according to claim 3 , wherein the envelope is fastened to at least one of the carrier and the elastic membrane in a materially joined manner.
5. The safety device according to claim 1 , wherein the overlaying active substance comprises at least one fragrance substance.
6. The safety device according to claim 1 , wherein the catalyst comprises a metal from the group consisting of silver (Ag), gold (Au), platinum (Pt), iron (Fe) and/or titanium (Ti), a salt and oxide.
7. The safety device according to claim 1 , wherein the catalyst is present in particle form, wherein the particle size is a maximum of 500 nm.
8. The safety device according to claim 7 , wherein the envelope is arranged separate and covers the elastic membrane in a gas-tight manner and is provided for the opening through the expansion of the elastic membrane.
9. The safety device according to claim 7 , wherein the overlaying active substance or catalyst is arranged on a surface of the carrier or of the envelope facing the elastic membrane.
10. The safety device according to claim 1 , wherein at least one of an overlaying active substance and the catalyst is fastened on a carrier on which the elastic membrane is fastened.
11. The safety device according to claim 1 , wherein the elastic membrane comprises at least one elastomer.