Steering grip light bar systems

• US 9,873,446 B2
• Filed: 07/22/2015
• Issued: 01/23/2018
• Est. Priority Date: 07/23/2014
• Status: Active Grant

• Current Assignee: Joyson Safety Systems Acquisition, LLC
• Original Assignee: TK Holdings Incorporated (Ningbo Junsheng Investment Group Co., Ltd.)
• Inventors: Gardner, Valerie D, Lisseman, Jason Carl, Varcoe, David Ryan
• Primary Examiner(s): Truong, Bao Q
• Application Number:
  US14/806,325
• Publication Number:
  US 20160025281A1
• Time in Patent Office: 916 Days
• CPC Class Codes: B60K 2360/188 Displaying information using colour changes
• CPC Class Codes: B60K 2360/338 Light strips
• CPC Class Codes: B60K 2360/782 on the steering wheel
• CPC Class Codes: B60K 35/00 Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
• CPC Class Codes: B60K 35/29 Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
• CPC Class Codes: B60K 35/60 Instruments characterised by their location or relative disposition in or on vehicles arrangements of lighting devices on dashboards B60Q3/10
• CPC Class Codes: B60Q 3/283 Steering wheels; Gear levers
• CPC Class Codes: B60Q 9/00 Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00 , e.g. haptic signalling
• CPC Class Codes: B62D 1/046 Adaptations on rotatable parts of the steering wheel for accommodation of switches
• CPC Class Codes: B62D 1/06 Rims, e.g. with heating means; Rim covers B62D1/11 takes precedence

Abstract

Various implementations include a light bar system for a steering wheel of a vehicle that includes a high intensity light source, a light diffusing layer, and an outer lens. For example, in certain implementations, the light diffusing layer is disposed between a plurality of high intensity light emitting diodes (LEDs) and an outer lens, and the light diffusing layer causes the light from the LEDs to appear as a continuous stream of light across a length of the lens and provides sufficiently bright lighting to warn or communicate with the driver in various ambient lighting conditions. In certain implementations, the outer lens is colored to blend in with the rest of the steering wheel when the LEDs are not activated.

Claims

1. A light bar system for a steering wheel comprising:

at least one light source disposed adjacent a portion of an armature of a steering wheel;

a carrier defining a light optimizing channel, the light optimizing channel having a proximal end disposed adjacent the light source; and

a light diffusing layer having an inner surface and an outer surface, the inner surface of the light diffusing layer being disposed adjacent a distal end of the light optimizing channel, and the light diffusing layer being configured for diffusing light as it passes therethrough from the inner surface to the outer surface.

2. The light bar system of claim 1, wherein the light diffusing layer is configured to cause the light being diffused there through to appear as a continuous stream of light across the light diffusing layer.

3. The light bar system of claim 1, wherein the light diffusing layer comprises a light diffusing film.

4. The light bar system of claim 1, wherein the light diffusing layer comprises an outer lens.

5. The light bar system of claim 1, further comprising an outer lens, an outer surface of the outer lens facing a driver and an inner surface of the outer lens facing the light diffusing layer.

6. The light bar system of claim 5, wherein the light diffusing layer is disposed on the inner surface of the outer lens.

7. The light bar system of claim 5, wherein the light diffusing layer is a light diffusing film, and the system further comprises one or more additional light altering films disposed between the distal end of the light optimizing channel and the inner surface of the outer lens.

8. The light bar system of claim 7, wherein the one or more additional light altering films are selected from the group consisting of:

a brightness enhancing film, a light diffusing film, and a light turning film.

9. The light bar system of claim 8, wherein the one or more additional light altering films comprises a brightness enhancing film, the light diffusing film being disposed adjacent the light optimizing channel and the brightness enhancing film being disposed between the light diffusing film and the lens.

10. The light bar system of claim 9, wherein the one or more additional light altering films further comprise a light turning film, the light turning film disposed between the brightness enhancing film and the lens.

11. The light bar system of claim 9, wherein the brightness enhancing film is a first brightness enhancing film and the one or more additional light altering films further comprises a second brightness enhancing film disposed adjacent the first brightness enhancing film.

12. The light bar system of claim 5, wherein the outer surface of the outer lens is disposable in a flush relationship with an outer skin of the steering wheel.

13. The light bar system of claim 12, wherein the outer lens further comprises side portions that extend from the inner surface of the outer lens toward the armature of the steering wheel, the side portions being configured for securing the outer lens adjacent the armature.

14. The light bar system of claim 1, wherein the light diffusing layer comprises at least one light diffusing film, and the system further comprises an outer lens, wherein the light diffusing film is disposed between the distal end of the light optimizing channel and an inner surface of the outer lens.

15. The light bar system of claim 1, wherein the light diffusing layer blocks all ambient light from entering the lens.

16. The light bar system of claim 1, wherein the light source comprises one or more light emitting diodes (LEDs), and the at least one LED comprises one or more visible light LEDs and one or more infrared light LEDs.

17. The light bar system of claim 16, wherein the visible light LEDs are disposed adjacent a central portion of the PCB, and the infrared light LEDs are disposed adjacent each end of the PCB.

18. The light bar system of claim 1, wherein the surface of the light optimizing channel comprises a reflective coating.

19. The light bar system of claim 1, wherein a foam molded layer is disposed around an armature of the steering wheel and at least a portion of the carrier.

20. The light bar system of claim 1, wherein the carrier is separately formed from a foam molded layer that is disposed around an armature and is disposed adjacent the armature via one or more fasteners.

21. The light bar system of claim 20, wherein the one or more fasteners comprises a clip.

22. The light bar system of claim 1, wherein the light source comprises at least one light emitting diode (LED), and the system further comprises a printed circuit board (PCB) on which the at least one LED is disposed.

23. The light bar system of claim 22, further comprising a heat transfer pad disposed between the PCB and a steering wheel armature, the heat transfer pad configured for dissipating heat from the PCB to the steering wheel armature.

24. The light bar system of claim 1, wherein the light source comprises at least one light emitting diode (LED), and the system further comprises a printed circuit board (PCB) on which the at least one LED is disposed and wherein a foam molded layer is disposed around an armature of the steering wheel and a portion thereof comprises at least one thermally conductive material that conducts heat from the PCB to the steering wheel armature.

25. The light bar system of claim 1, wherein the light optimizing channel comprises a reflective surface extending between the proximal and distal ends.