Lighting strip apparatus for visually guiding the occupants of a structure

• US 4,794,373 A
• Filed: 08/27/1986
• Issued: 12/27/1988
• Est. Priority Date: 08/27/1986
• Status: Expired due to Fees

• Current Assignee: Collins & Aikman Subsidiary Corporation
• Original Assignee: Collins & Aikman Holdings SA de CV
• Inventors: Harrison, John M.
• Primary Examiner(s): Crosland, Donnie L.
• Assistant Examiner(s): SWARTHOUT, BRENT
• Application Number:
  US06/900,826
• Time in Patent Office: 853 Days
• Field of Search: 340/815.21, 340/286 R, 340/332, 340/114 R, 340/945, 340/963, 340/815.15, 340/331, 340/286 M, 340/321, 362/153, 362/62, 362/227, 362/249, 362/226, 244/118.5, 244/1 R, 40/570, 182/18
• US Class Current: 340/286.01
• CPC Class Codes: B60Q 3/46 Emergency lighting, e.g. for escape routes
• CPC Class Codes: B60Q 3/47 Circuits; Control arrangements
• CPC Class Codes: B64D 25/00 Emergency apparatus or devices, not otherwise provided for parachutes B64D17/00, B64D19/00; jettisoning of fuel tanks or fuel per se B64D37/00; specially adapted for protection against criminal attack, e.g. anti-hijacking systems B64D45/0015 ; safety belts or body harnesses in general A62B35/00; safety belts or body harnesses for land vehicles B60R22/00; jettisonable parts of fuselage facilitating emergency escape B64C
• CPC Class Codes: F21S 4/22 flexible or deformable, e.g. into a curved shape
• CPC Class Codes: F21S 8/032 the surface being a floor or like ground surface, e.g. pavement
• CPC Class Codes: F21V 23/00 Arrangement of electric circuit elements in or on lighting devices characterised by cooling arrangements F21V29/508
• CPC Class Codes: G08B 7/066 guiding along a path, e.g. evacuation path lighting strip

Abstract

An apparatus for visually guiding the occupants of a structure in a path of travel along the floor within a structure is provided. This apparatus is comprised of a carpet overlying the floor, and a lighting strip positioned underneath the carpet. The lighting strip comprises an elongate ribbon, with a group of laterally spaced-apart electrical conductors encased in and extending longitudinally of the ribbon of sheet material. A series of light-transmissive plastic housings are connected to and arranged longitudinally along a common outer surface of the ribbon of plastic sheet material. Light-emitting means are positioned within each of the housings, and are electrically connected to predetermined ones of the group of electrical conductors encased in the ribbon of sheet material. The carpet has holes extending therethrough which are arranged in a series corresponding to the series of light-transmissive housings on the lighting strip. The housings are positioned in the holes of the carpet so that when the light-emitting means positioned within the housings are energized, a visually discernible pathway appears along the face of the carpet.

Claims

1. An apparatus for visually guiding the occupants of a structure in a path of travel along a floor within the structure, comprising a carpet having a fibrous face and overlying the floor, a lighting strip extending underneath said carpet and comprising an elongate ribbon of flexible plastic sheet material, a group of laterally spaced-apart electrical conductors encased in and extending longitudinally of said ribbon of sheet material, a series of relatively small light-transmissive plastic housings connected to and arranged longitudinally in spaced relationship along a common outer surface of said ribbon of plastic sheet material, and a relatively small and singular light-emitting means within each of said housings and being electrically connected to predetermined ones of said group of electrical conductors, said carpet having relatively small holes extending therethrough and spaced inwardly from the sides of the carpet and arranged in a series corresponding to said series of light-transmissive housings, and said housings being positioned in the holes of said carpet and being completely surrounded by said fibrous face so that when the light-emitting means positioned within the housings are energized a visually discernible pathway is defined along the fibrous face of the carpet, and when the light-emitting means are not energized no pathway of lights is discernible and the light-emitting means are substantially hidden from view.

2. An apparatus according to claim 1 wherein said sheet material forming said ribbon of plastic is relatively stiff so as to impart such flexural rigidity to the ribbon both lengthwise and widthwise thereof as to provide a memory to urge the ribbon to lie linearly in a straight condition along a floor surface.

3. An apparatus according to claim 1 wherein said plastic housings have flanges extending laterally outwardly from lower regions thereof to provide enlarged bases on the housings, upper surfaces of said flanges engaging the backside of said carpet around the holes to aid in uprightly positioning the housings in the carpet.

4. An apparatus according to claim 1 wherein said electrical conductors are tape-like and are formed of metal, and said series of plastic housings overlie said tape-like metal conductors for enhancing the stability of the housings.

5. An apparatus according to claim 4, further comprising at least one auxiliary light-transmissive plastic housing separate from said longitudinally arranged series of light-transmissive plastic housings, said auxiliary light-transmissive plastic housing having an auxiliary light-emitting means positioned therein and means electrically connecting said auxiliary light-emitting means to a predetermined pair of tape-like metallic conductors in said group of tape-like metallic electrical conductors.

6. An apparatus acoording to claim 4 wherein at least certain ones of said plastic housings are arranged in longitudinal alignment and overlie a common one of said tape-like electrical conductors, and wherein the light-emitting means within each of said aligned housings has a pair of conductors extending therefrom with one of the conductor of each pair being electrically connected to said common one of said tape-like electrical conductors and the other conductors of said pairs of conductors being electrically connected to selected ones of the remaining tape-like electrical conductors in said group.

7. An apparatus according to claim 4 wherein at least certain ones of said plastic housings are arranged in longitudinal alignment and overlie a common one of said tape-like electrical conductors, and wherein the light-emitting means within each of said aligned housings has a pair of conductors extending therefrom with one of the conductors of each pair being electrically connected to said common one of said tape-like electrical conductors, other conductors of each pair being electrically connected to a tape-like conductor immediately adjacent said common one of said tape-like electrical conductors, and further ones of said pairs of conductors being electrically connected to a tape-like conductor more remote from said common one of tape-like conductors so that the light-emitting means may be sequentially actuated so as to impart a visual direction thereto.

8. An apparatus for visually guiding the occupants of a structure in a path of travel along a floor within the structure, comprising a carpet having a fibrous face and overlying the floor, a lighting strip extending underneath said carpet and comprising an elongate flexible ribbon formed of relatively stiff plastic sheet material, the stiffness of the plastic sheet material forming said ribbon imparting such flexural rigidity to the ribbon both lengthwise and width-wise thereof as to provide a memory to urge the ribbon to lie linearly in a straight condition along the floor, a group of laterally spaced-apart tape-like metallic electrical conductors encased in and extending longitudinally of said ribbon of sheet material, a series of relatively small light-transmissive plastic housings connected to and arranged longitudinally in spaced relationship along a common outer surface of said ribbon of plastic sheet material, and a relatively small and singular light-emitting means within each of said housings and being electrically connected to predetermined ones of said group of tape-like metallic electrical conductors, said carpet having relatively small holes extending therethrough and spaced inwardly from the sides of the carpet and arranged in a series corresponding to said series of light-transmissive housings, and said housings being positioned in the holes of said carpet and being completely surrounded by said fibrous face so that when the light-emitting means positioned within the housings are energized a visually discernible pathway is defined along the fibrous face of the carpet, and when the light-emitting means are not energized no pathway of lights is discernible and the light-emititng means are substantially hidden from view.

9. An apparatus as claimed in claim 8, further comprising at least one auxiliary light-transmissive plastic housing separate from said longitudinally arranged series of light-transmissive plastic housings, said auxiliary light-transmissive plastic housing having an auxiliary light-emitting means positioned therein and means electrically connecting said auxiliary light-emitting means to a predetermined pair of tape-like metallic conductors in said group of tape-like metallic electrical conductors.

10. In combination with a structure having a passageway therein, and wherein an emergency exit is located nearby the passageway, an apparatus for guiding the occupants of the structure along said passageway to said exit, comprising a carpet having a fibrous face and overlying the floor of said passageway, a lighting strip extending underneath said carpet and comprising an elongate ribbon of flexible plastic sheet material, a group of laterally spaced-apart electrical conductors encased in and extending longitudinally of said ribbon of sheet material, a series of relatively small light-transmissive plastic housings connected to and arranged longitudinally in spaced relationship along a common outer surface of said ribbon of plastic sheet material, and a relatively small and singular light-emitting means within each of said housings and being electrically connected to predetermined ones of said group of electrical conductors, said carpet having relatively small holes extending therethrough and spaced inwardly from the sides of the carpet and arranged in a series corresponding to said series of light-transmissive housings with said housings being positioned in the holes of said carpet and being completely surrounded by said fibrous face, and power means electrically connected to said group of electrical conductors, so that when said light-emitting means are energized by said power means a visually discernible pathway is defined along the floor which can be followed by the occupants of the structure to the nearby emergency exit, and when the light-emitting means are not energized no pathway of lights is discernible and the light-emitting means are substantially hidden from view.

11. An apparatus according to claim 10, wherein said power means is a low voltage power supply.

12. An apparatus according to claim 10, including sequencing means for energizing saids light-emitting means in a desired sequence.

13. A lighting strip having light-emitting means for use in providing a visual pattern of lights along a surface when energized, and when the light-emitting means are not energized no pathway of lights is discernible and the light-emitting means are substantially hidden from view, whereby when the lighting strip is installed in a carpeted surface having relatively small holes extending therethrough, the light-emitting means are substantially completely surrounded by the fibrous surface of the carpet, said lighting strip comprising an elongate flexible ribbon of plastic sheet material, a group of laterally spaced-apart electrical conductors encased in and extending longitudinally of said ribbon of sheet material, a series of relative small light-transmissive plastic housings connected to and arranged longitudinally in spaced relationship along a common outer surface of said ribbon of plastic sheet material, and a relatively small and singular light-emitting means within each of said housings and being electrically connected to predetermined ones of said group of electrical conductors.

14. A lighting strip according to claim 13 wherein said plastic housings have flanges extending laterally outwardly from lower regions thereof to provide an enlarged base on the housing for facilitating securing the housings along said ribbon of plastic sheet material in an upright attitude.

15. A lighting strip according to claim 13 wherein said electrical conductors are tape-like and are formed of metal, and said series of plasic housings overlie said tape-like metal conductors for enhancing the stability of the housings.

16. A lighting strip as claimed in claim 15, further comprising at least one auxiliary light-transmissive plastic housing separate from said longitudinally arranged series of light-transmissive plastic housings, said auxiliary light-transmissive plastic housing having an auxiliary light-emitting means positioned therein and means electrically connecting said auxiliary light-emitting means to a predetermined pair of tape-like metallic conductors in said group of tape-like metallic electrical conductors.

17. A lighting strip according to claim 15 wherein at least certain ones of said plastic housings are arranged in longitudinal alignment and overlie a common one of said tape-like electrical conductors, and wherein the light-emitting means within each of said aligned housings has a pair of conductors extending therefrom with one of the conducters of each pair being electrically connected to said common one of said tape-like electrical conductors and the other conductors of said pairs of conductors being electrically connected to selected ones of the remaining tape-like electrical conductors in said group.

18. A lighting strip according to claim 15 wherein at least certain ones of said plastic housings are arranged in longitudinal alignment and overlie a common one of said tape-like electrical conductors, and wherein the light-emitting means within each of said aligned housings has a pair of conductors extending therefrom with one of the conductors of each pair being electrically connected to said common one of said tape-like electrical conductors, other conductors of each pair being electrically connected to a tape-like conductor immediately adjacent said common one of said tape-like electrical conductors, and further ones of said pairs of conductors being electrically connected to a tape-like conductor more remote from said common one of tape-like conductors so that the light-emitting means may be sequentially actuated so as to impart a visual direction thereto.

19. A lighting strip having light-emitting means for use in providing a visual pattern of lights along a floor surface when energized, and when the light-emitting means are not energized no pathway of lights is discernible and the light-emitting means are substantially hidden from view, whereby when the lighting strip is installed in a carpeted surface having relatively small holes extending therethrough, the light-emitting means are substantially completely surrounded by the fibrous surface of the carpet, said lighting strip comprising an elongate flexible ribbon formed of relatively stiff plastic sheet material, the stiffness of the plastic sheet material forming said ribbon imparting such flexural rigidity to the ribbon both lengthwise and widthwise thereof as to provide a memory to urge the ribbon to lie linearly in a straight condition along a floor surface, a group of laterally spaced-apart tape-like metallic electrical conductors encased in and extending longitudinally of said ribbon of sheet material, a series of relatively small light-transmissive plastic housings connected to and arranged longitudinally in spaced relationship along a common outer surface of said ribbon of plastic sheet material, and a relatively small and singular light-emitting means within each of said housings and being electrically connected to predetermied ones of said group of tape-like metallic electrical conductors.

20. A lighting strip as claimed in claim 19, further comprising at least one auxiliary light-transmissive plastic housing separate from said longitudinally arranged series of light-transmissive plastic housings, said auxiliary light-transmissive plastic housing having an auxiliary light-emitting means positioned therein and means electrically connecting said auxiliary light-emitting means to a predetermined pair of tape-like metallic conductors in said group of tape-like metallic electrical conductors.