Means-of-transport side glazing with reinforced emergency-exit substrate
A side glazing for a transport vehicle, particularly glazing for a train, the glazing being fixed multiple glazing, the glazing including at least one connecting bridge which is separate from the glazing frame structure and makes a connection between a peripheral edge of the lamination and a surface, situated transversely opposite, on the other side of the glazing cavity.
1. A side glazing for a means of transport, said glazing being fixed multiple glazing, said glazing comprising:
an exterior substrate having an exterior face which faces an exterior space, an intermediate face on the opposite side to the exterior face, and a peripheral edge face,
an interior substrate having an interior face which faces an interior space, an intermediate face on the opposite side to the interior face, and a peripheral edge face,
a glazing frame structure which is situated at the periphery of the intermediate face of said exterior substrate and at the periphery of the intermediate face of said interior substrate and which holds the exterior substrate and the interior substrate together in such a way that the glazing separates said exterior space from said interior space with a glazing cavity situated between the exterior substrate and the interior substrate, the glazing frame structure comprising a peripheral spacer arranged between the intermediate face of the exterior substrate and the intermediate face of the interior substrate to space apart the exterior substrate and the interior substrate from each other,
and a lamination comprising at least one main sheet of glass and a main sheet of plastic, said main sheet of plastic being situated in contact between the intermediate face of said exterior substrate and the main sheet of glass, and
at least one connecting bridge which is separate from said peripheral spacer of the glazing frame structure and makes a connection between a peripheral edge of said lamination and a surface, situated transversely opposite said peripheral edge, on the other side of said glazing cavity, the least one connecting bridge being out of contact with the peripheral spacer.
2. The glazing as claimed in claim 1 , wherein said lamination is not in direct contact with said peripheral spacer of the glazing frame structure or is not directly mechanically connected and/or chemically bonded to said peripheral spacer of the glazing frame structure.
3. The glazing as claimed in claim 1 , wherein said connecting bridge is continuous and is separated from said glazing frame structure over its entire peripheral length.
4. The glazing as claimed in claim 1 , wherein said connecting bridge is discontinuous over its peripheral length and is present, separated from said glazing frame structure, over a peripheral length of between 20% and 95% of the peripheral length of said lamination.
5. The glazing as claimed in claim 1 , wherein said connecting bridge is situated at a distance which, at the shortest, is between 2.0 and 30.0 mm away from said glazing frame structure.
6. The glazing as claimed in claim 1 , wherein said connecting bridge comprises a bead of adhesive.
7. The glazing as claimed in claim 1 , wherein said connecting bridge is situated, when viewed from the interior and/or when viewed from the exterior, behind a masking strip.
8. The glazing as claimed in claim 1 , wherein each of the exterior and interior substrates is made of a glass that has undergone a chemical or heat treatment aimed at strengthening it.
9. A side glazing for a means of transport, said glazing being fixed multiple glazing, said glazing comprising:
an exterior substrate having an exterior face which faces an exterior space, an intermediate face on the opposite side to the exterior face, and a peripheral edge face,
an interior substrate having an interior face which faces an interior space, an intermediate face on the opposite side to the interior face, and a peripheral edge face,
a glazing frame structure which is situated at the periphery of the intermediate face of said exterior substrate and at the periphery of the intermediate face of said interior substrate and which holds the exterior substrate and the interior substrate together in such a way that the glazing separates said exterior space from said interior space with a glazing cavity situated between the exterior substrate and the interior substrate,
and a lamination comprising at least one main sheet of glass and a main sheet of plastic, said main sheet of plastic being situated in contact between the intermediate face of said exterior substrate and the main sheet of glass, and
at least one connecting bridge which is separate from said glazing frame structure and makes a connection between a peripheral edge of said lamination and a surface, situated transversely opposite said peripheral edge, on the other side of said glazing cavity,
wherein said exterior substrate and said interior substrate each comprise, in an upper part, a hole opening onto each face of the substrate and separated from the peripheral edge face of the substrate, the holes in the exterior and interior substrates facing one another so as to allow the creation of an opening window, the glazing frame structure furthermore holding the exterior and interior substrates around the holes and, in a part of the glazing that is situated under said window, said lamination is not in contact with said glazing frame structure.
10. The glazing as claimed in claim 9 , wherein said glazing frame structure comprises a horizontal crossmember situated underneath said window, said crossmember not being in contact with two lateral uprights of the glazing frame structure.
11. The glazing as claimed in claim 9 , wherein said glazing cavity is situated all around said window.
12. The glazing as claimed in claim 9 , wherein said glazing does not comprise any element that projects toward the exterior beyond the exterior face of the exterior substrate.
13. The glazing as claimed in claim 1 , wherein the means of transport is a train.
14. The glazing as claimed in claim 5 , wherein the distance, at the shortest, is between 5.0 and 20.0 mm, away from said glazing frame structure.
15. The glazing as claimed in claim 6 , wherein the bead of adhesive is based on polyurethane or on silicone or on modified silane polyether or on polysulfide.
16. The glazing as claimed in claim 1 , wherein the peripheral spacer is in contact with both the intermediate face of the exterior substrate and the intermediate face of the interior substrate.