Method for producing an escape route marking for airplanes, and said escape route marking

Patent metadata

Field	Value
Publication number	US-9702509-B2
Application number	US-201314421559-A
Country	US
Kind code	B2
Filing date	Aug 14, 2013
Priority date	Aug 14, 2012
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A method for producing an escape route marking in a heatable and malleable support mold is described. The escape route marking has a transparent covering, a supporting element and a photoluminescent material. The method includes procuring the heatable and malleable support mold, inserting a supporting element into the support mold, arranging the photoluminescent material on the supporting element, arranging the transparent covering on the supporting element, heating and deforming the escape route marking in the support mold and solidifying the escape route marking in the support mold in a predetermined position. The resulting escape route marking is also described.

First claim

The invention claimed is:

1. A method for producing an escape route marking, comprising:
inserting a supporting element into a heatable and malleable support mold;
arranging a photoluminescent material on the supporting element;
arranging a transparent covering on the supporting element;
heating and deforming the escape route marking in the heatable and malleable support mold, the escape route marking including the supporting element, the photoluminescent material and the transparent covering; and
solidifying the escape route marking in the heatable and malleable support mold in a deformed shape.

2. The method according to claim 1 , wherein arranging the photoluminescent material and arranging the transparent covering comprises one of:
arranging the photoluminescent material and the transparent covering on the supporting element in succession into the heatable and malleable support mold; or
joining the photoluminescent material and the transparent covering to each other before inserting the joined photoluminescent material and transparent covering into the heatable and malleable support mold.

3. The method according to claim 1 , wherein:
the heatable and malleable support mold is made of silicone; and
after solidifying in the heatable and malleable support mold, the heatable and malleable support mold returns to its a non-deformed initial shape and the escape route marking remains in the deformed shape.

4. The method according to claim 1 , further comprising:
arranging the support mold in a solidification device before at least one of deforming or solidifying the escape route marking heated in the support mold.

5. The method according to claim 4 , wherein the solidification device is a prefabricated solidification mold.

6. The method according to claim 4 , wherein the solidification device is a deforming device connected to a control unit.

7. The method according to claim 6 , characterized in that wherein the deforming device has a plurality of rods arranged in a parallel manner, each of the plurality of rods shiftable in its longitudinal direction by the control device, in order to bring the escape route marking into the deformed shape.

8. The method according to claim 6 , further comprising:
after arranging the heated mold in the deforming device, bringing rods of the deforming device into respective positions for achieving a desired deformation so that the escape route marking in the heatable and malleable support mold solidifies in the deformed shape.

9. The method according to claim 1 , wherein the transparent covering has a thermally malleable polycarbonate.

10. The method according to claim 1 , wherein at least one of the supporting element, the photoluminescent material or the transparent covering is thermally malleable alone or together lying on top of each other.

11. An escape route marking produced with the method according to claim 1 , wherein the deformed shape has at least one curved section with opposite curvatures.

12. The escape route marking according to claim 11 , wherein the deformed shape has at least one non-linear track section with one or more radii.

13. The escape route marking according to claim 11 , wherein color pigments are incorporated in the transparent covering.

14. The escape route marking according to claim 11 , characterized in that wherein the transparent covering comprises a thermally malleable polycarbonate.

15. The escape route marking according to claim 11 , characterized in that wherein the photoluminescent material is in the form of strips with a length and a width corresponding with dimensions of the transparent covering.

16. The escape route marking according to claim 11 , wherein the photoluminescent material is in the form of a strip corresponding with dimensions of the supporting element arranged on the supporting element and on it the transparent covering is arranged on the strip.

17. The escape route marking according to claim 11 , wherein a base area of the supporting element is a rectangular manner and has side walls with a thickness D extending along each delimitation of the base area at an angle to the base area, whereby a recess is formed in the supporting element.

18. The escape route marking according to claim 11 , wherein the transparent covering has a rectangular base area with projections extending at an angle in the form of side walls with a thickness D′ at a distance from each delimitation of the rectangular base area, external edges of the projections resting on insides of side walls of the supporting element and a hollow space formed between the transparent covering and the supporting element when the transparent covering is arranged on the supporting element.

19. The escape route marking according to claim 11 , wherein the transparent covering and the supporting element comprise a one-piece hollow profile.

Assignees

• Lufthansa Technik Ag

Inventors

• Biehl Torben
• Lierow Hans-Christian

Classifications

• B29C51/002

  characterised by the choice of material · CPC title

• F21W2111/00

  Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 · CPC title

• B29L2009/00

  Layered products · CPC title

• B29K2883/005

  LSR, i.e. liquid silicone rubbers, or derivatives thereof · CPC title

• B29L2031/772

  Articles characterised by their shape and not otherwise provided for (closed loop B29L2031/709; ring-like B29L2031/7096; corrugated B29L2016/00, flat B29L2007/00; hollow B29L2022/00; screw-threaded B29L2001/00; toothed B29L2031/775; corrugated tubes B29L2023/18) · CPC title