Escape route marking with a luminous strip made of photoluminescent material

Patent metadata

Field	Value
Publication number	US-9269284-B2
Application number	US-201314390619-A
Country	US
Kind code	B2
Filing date	Apr 2, 2013
Priority date	Apr 5, 2012
Publication date	Feb 23, 2016
Grant date	Feb 23, 2016

Abstract

An escape route marking for an airplane with a long luminous strip consisting of a photoluminescent material, a housing in which the luminous strip is arranged and that is designed clear or transparent at least on its top side, and a holding rail for the housing. The holding rail possesses a seating recess for the housing of the luminous strip and cover wings that project laterally on both sides of the holding rail in the longitudinal direction. The top side of the housing inserted in the holding recess is exposed, the cover wings are designed to be elastic, and at least the cover wings of the holding rail consist of a material that is more elastic than the material of the housing.

First claim

The invention claimed is:

1. An escape route marking for an airplane comprising:
a long luminous strip consisting of a photoluminescent material;
a housing in which the luminous strip is arranged and that is designed clear or transparent at least on its top side;
a holding rail for the housing that possesses a seating recess for the housing of the luminous strip and cover wings that project laterally on both sides of the holding rail in the longitudinal direction, wherein the top side of the housing inserted in the holding recess is exposed, the cover wings are designed to be elastic, and at least the cover wings of the holding rail consist of a material that is more elastic than a material of the housing; and
a flame resistant filler material arranged on a bottom side of the holding rail and consisting of a foam material, said filler material being a foamed composition having a material density between 30 kg/m 3 and 70 kg/m 3 .

2. The escape route marking according to claim 1 , wherein an entirety of the holding rail consists of the material that is more elastic than the material of the housing.

3. The escape route marking according to claim 1 , wherein the cover wings are arranged on the top side of the holding rail, and free ends of the cover wings are angled at an angle relative to the bottom side of the holding rail.

4. The escape route marking according to claim 1 , wherein at least one of the cover wings possesses a first section running substantially parallel to the top side of the housing inserted in the seating recess and a second section projecting at an angle from the top side of the housing.

5. The escape route marking according to claim 1 , wherein the seating recess possesses a trapezoidal cross-section that narrows towards its top side.

6. The escape route marking according to claim 1 , wherein the bottom side of the holding rail possesses at least two projecting bars extending in the longitudinal direction.

7. The escape route marking according to claim 6 , wherein the at least two projecting bars terminate flush with a side wall of the holding rail on each side of the holding rail.

8. The escape route marking according to claim 7 , wherein a filler material is arranged within the at least two projecting bars on the bottom side of the holding rail.

9. The escape route marking according to claim 7 , wherein a thickness of the filler material is dimensioned such that free ends of the cover wings possess a height at which the cover wings lie on a neighboring floor covering when the cover wings experience elastic deformation upon installation within said floor covering.

10. A floor covering for an airplane including the escape route marking according to claim 7 , wherein a thickness of the filler material is dimensioned such that free ends of the cover wings possess a height at which the cover wings lie on the floor covering within the airplane when the cover wings experience elastic deformation.

11. The escape route marking according to claim 1 , wherein a height of the escape route marking is adapted to different floor covering heights by filler material of different thicknesses.

12. The escape route marking according to claim 1 , wherein the holding rail consists of a plastic material with a hardness of Shore A20 to A90.

13. The escape route marking according to claim 1 , wherein the bottom side of the holding rail possesses at least two projecting bars extending in the longitudinal direction and extending perpendicular to the bottom side of the holding rail; and wherein the filler material extends below a bottom of the at least two projecting bars on the bottom side of the holding rail.

Assignees

• Lufthansa Technik Ag

Inventors

• Biehl Torben
• Lierow Hans-Christian

Classifications

• G09F13/20 Primary

  with luminescent surfaces or parts (luminescent compositions C09K11/00; light sources using luminescence F21K2/00) · CPC title

• B64D2045/007

  Indicators or signs in the cabin, e.g. exit signs or seat numbering · CPC title

• B64D45/00

  Aircraft indicators or protectors not otherwise provided for · CPC title

• B64D11/00

  Passenger or crew accommodation; Flight-deck installations not otherwise provided for · CPC title

• B64D47/02

  Arrangements or adaptations of signal or lighting devices · CPC title