Lighting means for illuminative or decorative purpose and modular lighting tube used therefor

• US 4,581,687 A
• Filed: 05/16/1984
• Issued: 04/08/1986
• Est. Priority Date: 05/16/1984
• Status: Expired due to Fees

• Current Assignee: ABC Trading Co., Ltd.
• Original Assignee: ABC Trading Co., Ltd.
• Inventors: Nakanishi, Hirobumi
• Primary Examiner(s): Lechert, Jr., Stephen J.
• Assistant Examiner(s): Locker, Howard J.
• Application Number:
  US06/610,749
• Time in Patent Office: 692 Days
• Field of Search: 362/249, 362/250, 362/252, 362/278, 362/226, 362/320, 362/800, 362/806, 339/252 R, 339/252 S
• US Class Current: 362/653
• CPC Class Codes: F21S 2/00 Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
• CPC Class Codes: F21S 4/22 flexible or deformable, e.g. into a curved shape
• CPC Class Codes: F21V 19/0015 Fastening arrangements intended to retain light sources
• CPC Class Codes: F21V 19/0025 the fastening means engaging the conductors of the light source, i.e. providing simultaneous fastening of the light sources and their electric connections
• CPC Class Codes: F21V 21/00 Supporting, suspending, or attaching arrangements for lighting devices F21V17/00, F21V19/00 take precedence; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q, stands for supporting apparatus or articles in general F16M11/00; Hand grips
• CPC Class Codes: F21V 21/005 for several lighting devices in an end-to-end arrangement, i.e. light tracks
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H01R 33/09 for baseless lamp bulb
• CPC Class Codes: Y10S 362/80 Light emitting diode
• CPC Class Codes: Y10S 362/806 Ornamental or decorative

Abstract

The modular lighting tube according to the present invention comprises a transparent or translucent and flexible tubular member, a pair of circuit wires provided within said tubular member, across which a plurality of light emitting means are connected, electric terminals for said pair of circuit wires and mechanical connector members provided on opposite ends of said tubular member, wherein the last-mentioned two components are directly connectable to the ends of the adjacent modular lighting tubes in electro-mechanical manner. The circuit wires are connected to the terminals therefor by spring structures to maintain tension in the wires. The springs may form portions of the respective circuit wires. The modular lighting tube thus constructed is electro-mechanically connected to the mounting base and then a single or a plurality of other modular lighting tube or tubes is or are directly connected to one or both ends of said first modular lighting tube in a linear or curved row to obtain an assembly of different length and configuration as an excellently decorative lighting device. The spring portions of the circuit wires serve to keep the wires under tension during formation and use of the lighting device, whether the tube or tubes are linearly or curvedly arranged.

Claims

1. Modular lighting tube adapted to be connected in a row of such modular lighting tubes by directly connecting adjacent tubes at mutually opposing ends thereof electro-mechanically for illuminative or decorative purpose, said modular lighting tube comprising:

a tubular member made of transparent, flexible, heat-resistant material;

connector means having one end fixedly carried by each end of said tubular member and the other end mechanically connected to an associated connector means of an adjacent modular lighting tube;

two pairs of electric terminal means each pair provided with two electric terminals on opposite ends of said tubular member so as to be electrically connected to the electric terminals of an adjacent modular lighting tube;

electrical connection means associated with each pair of said electric terminal means, inclusive of circuit wires electrically connecting said two electric terminals of each pair of said electric terminal means, wherein each of said circuit wires partially comprises a tension-elastic conductor; and

a plurality of light emitting means electrically connected across said circuit wires within said tubular member.

2. Modular lighting tube according to claim 1, wherein said connector means is made of transparent material having a same outer diameter as that of said tubular member.

3. Modular lighting tube according to claim 1, wherein one of said connector means is fixedly adhered to an end of the tubular member.

4. Modular lighting tube according to claim 1, wherein said connector means respectively comprise a pair of mutually engageable male and female elements of which the one is mounted at one end and the other is mounted at the other end of the tubular member so that each pair of adjacent modular lighting tube may be directly connected by said male and female elements to each other.

5. Modular lighting tube according to claim 4, wherein said male element of said connector means comprises a plug member having one end fixedly adhered to one end of said tubular member and provided at the other end with elastic snapping locks while said female element of said connector means comprises a receptacle fixedly adhered to the other end of said tubular member and into which said elastic snapping locks are engaged.

6. Modular lighting tube according to claim 1, wherein said pair of electric terminal means comprise a pair of mutually engageable socket contact and attaching plug, said socket contact being mounted at one end and said attaching plug being mounted at the other end of said tubular member.

7. Modular lighting tube according to claim 5, wherein said pair of electric terminal means comprise a pair of mutually engageable socket contact and attaching plug adapted to be inserted thereinto, said socket contact being fixedly carried by said plug member and said attaching plug being fixedly carried by said receptacle.

8. Modular lighting tube according to claim 1, wherein said light emitting means include a mini-lamp.

9. Modular lighting tube according to claim 1, wherein said light emitting means include a light emitting diode.

10. Modular lighting tube according to claim 1, wherein a plurality of said light emitting means are connected in series across said two circuit wires.

11. Modular lighting tube according to claim 1, wherein a plurality of said light emitting means are connected in series across said two circuit wires and a plurality of respective serial connections of said light emitting means are connected in parallel to one another.

12. Modular lighting tube according to claim 1, wherein said light emitting means are arranged to regular intervals within said tubular member.

13. Modular lighting tube according to claim 4, wherein a plurality of said modular lighting tubes are directly connected to one another in a row, and a plurality of sets of said light emitting means are repeatedly arranged in a row, each set of said light emitting means being arranged at intervals given in accordance with a predetermined rule inclusive of regular intervals.

14. Modular lighting tube according to claim 4, wherein said pair of electric terminal means comprise a pair of mutually engageable socket contact and attaching plug, said socket contact being mounted at one end and said attaching plug being mounted at the other end of said tubular member.

15. Lighting device for illuminative or decorative purpose including a mounting base provided with connector means and a group of modular lighting tubes electromechanically directly connected to one another by said connector means and/or to said connector means selectively, said modular lighting tube comprising:

a tubular member made of transparent, flexible, heat resistant material;

mechanical connector means having one end fixedly carried by an end of said tubular member and another end mechanically connectable, selectively, to an associated mechanical connector means provided on one end of an adjacent modular lighting tube or to said associated connector means of said mounting base;

two pairs of electric terminal means each pair carrying two electric terminals provided on opposite ends of said tubular member so as to be electrically connectable, selectively, to the associated ends of adjacent modular lighting tubes or to the associated connectors of said mounting base;

electrical connection means associated with each pair of said electric terminal means, inclusive of circuit wires electrically connecting said two electric terminals of each pair of said electric terminal means, wherein each of said circuit wires partially comprises a conductor incorporating a tension spring means therein;

a plurality of light emitting means electrically connected across said circuit wires within said tubular member;

groups of said modular lighting tubes constructing a lighting assembly of one or more sets of modular lighting tubes each set consisting of a series of electro-mechanically and directly connected by mutually associated mechanical connector means and electric terminal means of respectively adjacent modular lighting tubes or a single modular lighting tube so as to serve a lighting structure in a predetermined planar or spatial pattern.

16. Modular lighting tube capable of being directly electro-mechanically connected at mutually opposite ends to an adjacent tube to form a row of modular lighting tubes for illuminative or decorative purposes, comprising:

a tubular member made of transparent, heat-resistant material and capable of being curved when used,

mechanical connector means comprising a plug member, said plug member having one end fixedly adhered to one end of said tubular member and having elastic snapping locks at the other end thereof, said mechanical connector means further comprising a receptacle means fixedly adhered to the other end of said tubular member for engaging said elastic snapping locks,

both said plug member and said receptacle means made of transparent material and having an outer diameter substantially identical with an outer diameter of said tubular member,

two circuit wires arranged in parallel to one another in said tubular member,

tension-elastic conductors forming respective parts of said two circuit wires,

electrical connection means comprising a pair of socket contacts fixedly carried by one of said plug member and said receptacle means and a pair of attaching electric plugs fixedly carried by the other of said plug member and said receptacle means, said socket contacts and said attaching electric plugs being mutually engageable and being attached to opposite ends of said two circuit wires, and

a plurality of light emitting means electrically connected across said circuit wires within said tubular member and arranged in accordance with a predetermined rule within said tubular member.

17. Modular lighting tube according to claim 16 wherein said attaching electric plugs of said electrical connection means are carried by said receptacle means of said mechanical connector means and

said socket contacts of said electrical connection means are carried by said plug member of said mechanical connector means,

thereby providing a male electrical connector in a female mechanical connector at one end of the modular lighting tube and a female electrical connector in a male mechanical connector at the other end of the modular lighting tube.

18. Lighting device for illuminative or decorative purpose including a mounting base provided with connector means and a group of modular lighting tubes electromechanically directly connected to one another by said connector means and/or to said connector means selectively, said modular lighting tube comprising:

a tubular member made of transparent, heat-resistant material and capable of being curved when used,

mechanical connector means comprising a plug member, said plug member having one end fixedly adhered to one end of said tubular member and having elastic snapping locks at the other end thereof, said mechanical connector means further comprising a receptacle means fixedly adhered to the other end of said tubular member for engaging said elastic snapping locks,

both said plug member and said receptacle means made of transparent material and having an outer diameter substantially identical with an outer diameter of said tubular member,

two circuit wires arranged in parallel to one another in said tubular member,

tension-elastic conductors forming respective parts of said two circuit wires,

electrical connection means comprising a pair of socket contacts fixedly carried by one of said plug member and said receptacle means and a pair of attaching electric plugs fixedly carried by the other of said plug member and said receptacle means, said socket contacts and said attaching electric plugs being mutually engageable and being attached to opposite ends of said two circuit wires, and

a plurality of light emitting means electrically connected across said circuit wires within said tubular member and arranged in accordance with a predetermined rule within said tubular member,

said mounting base comprising;

second mechanical connector means engageable with said plug member or receptacle of said modular lighting tube, and second electrical connection means electrically connective with said socket contacts or said attaching electric plugs of said electrical connection means,

groups of said modular lighting tubes constructing a lighting assembly of one or more sets of modular lighting tubes each set consisting of a series of lighting tubes electromechanically and directly connected by mutually associated mechanical connector means and electric terminal means of respectively adjacent modular lighting tubes or a single modular lighting tube so as to serve as a lighting structure in a predetermined planar or spatial pattern.