Interior rearview mirror system incorporating a directional information display

• US 20020070872A1
• Filed: 11/15/2001
• Published: 06/13/2002
• Est. Priority Date: 02/18/1998
• Status: Active Grant

• Current Assignee: Donnelly Corporation (Magna International Incorporated)
• Original Assignee: Donnelly Corporation (Magna International Incorporated)
• Inventors: Lynam, Niall R., Deline, Jonathan E.
• Granted Patent: US 6,642,851 B2
• Time in Patent Office: Days
• US Class Current: 340/815.4
• CPC Class Codes: B60K 35/00 Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
• CPC Class Codes: B60K 35/656 the user being a passenger
• CPC Class Codes: B60R 1/04 mounted inside vehicle B60R1/025, B60R1/08 take precedence
• CPC Class Codes: B60R 1/12 Mirror assemblies combined with other articles, e.g. clocks
• CPC Class Codes: B60R 2001/1215 with information displays
• CPC Class Codes: B60R 21/01566 Devices for warning or indicating mode of inhibition

Abstract

A rearview mirror support and information display assembly for vehicles includes a rigid mirror stay preferably having a mirror support for an independently adjustable rearview mirror and a breakaway mount which releasably couples the stay and any supported rearview mirror to a windshield mounted button or a header mounted base such that the entire assembly is released on impact. An information display is positioned on the assembly adjacent the position of a rearview mirror when supported thereon to convey information to the vehicle driver/occupants. Preferably, the display is mounted in a housing which conceals a light source or other emitter for the display, the housing being removably secured to the mirror stay to allow servicing and access to a concealed wire passageway.

Claims

1. - A rearview mirror support and information display assembly for vehicles comprising:

a mirror stay having a mount for mounting said stay within the interior of a vehicle and a mirror support for engaging and supporting a rearview mirror in viewing position for viewing by at least the driver of the vehicle; and

an information display for displaying information visible to an occupant within the vehicle in which said assembly is mounted;

said assembly having portions concealed from view by the vehicle occupant by the rearview mirror when supported on said mirror support, said assembly projecting from behind the rearview mirror such that said information display is positioned adjacent the rearview mirror when supported thereon such that information display is viewable by the vehicle occupant.

2. - The assembly of claim 1 wherein said information display is an emitting display.

3. - The assembly of claim 2 wherein said emitting display includes a display element and a light source for illuminating said display element.

4. - The assembly of claim 3 wherein said information display further includes a housing extending over a portion of said mirror stay for concealing said light source.

5. - The assembly of claim 4 wherein said information display includes an electrical circuit connected to said light source, said electrical circuit including first electrical wiring for connection to the electrical system of the vehicle in which said assembly is mounted.

6. - The assembly of claim 5 wherein said electrical circuit includes second electrical wiring for connection of electrical apparatus in a rearview mirror to the electrical system of the vehicle in which said assembly is mounted when the rearview mirror is supported on said mirror support.

7. - The assembly of claim 6 wherein said housing also includes a skirt defining a wire passageway between said mirror stay and skirt, said skirt concealing a portion of said first and second electrical wiring from view by any vehicle occupants.

8. - The assembly of claim 7 wherein said skirt includes a strain relief member for engaging at least one of said first and second electrical wiring within said passageway.

9. - The assembly of claim 7 wherein said housing includes an opening for passing said second electrical wiring out of said wire passageway for connection to the rearview mirror when supported on said mirror support.

10. - The assembly of claim 9 wherein said housing also includes a another opening for passing said first electrical wiring out of said wire passageway for connection to the vehicle electrical system.

11. - The assembly of claim 10 wherein said assembly includes a top surface adjacent the headliner above the front windshield of the vehicle in which said assembly is mounted, and a lower area positioned behind and to the rear of the rearview mirror and concealed from the view of at least the vehicle driver when the rearview mirror is supported on said mirror support, said opening being located in said top surface, said other opening being located in said lower area.

12. - The assembly of claim 4 wherein said housing extends outwardly from said mirror stay from a position spaced behind and to the rear of the rearview mirror when supported on said mirror stay, a significant portion of said housing being concealed from view of the vehicle driver by the rearview mirror when supported on said mirror stay.

13. - The assembly of claim 4 wherein said housing is formed separately from said mirror stay and is removably mounted thereon.

14. - The assembly of claim 3 wherein said display element includes indicia thereon;

said light source being positioned for backlighting said indicia on said display element.

15. - The assembly of claim 3 wherein said light source is a light emitting diode.

16. - The assembly of claim 3 wherein said assembly also includes an electrical circuit connected to said light source;

said electrical circuit also including a photo sensor adapted to receive ambient light from adjacent said assembly, said photo sensor connected through said electrical circuit to said light source for controlling the brightness of the light emitted by said light source in relation to the ambient light level adjacent to said information display.

17. - The assembly of claim 16 including a lens for directing ambient light adjacent said assembly to said photo sensor.

18. - The assembly of claim 3 wherein said display element includes indicia thereon which are visible to an occupant of the vehicle in which said assembly is mounted only when said indicia are backlit by said light source.

19. - The assembly of claim 3 wherein said display element includes indicia thereon;

said assembly also including an electrical circuit having a plurality of light sources, each of said light sources being adapted to illuminate different indicia on said display element.

20. - The assembly of claim 2 wherein said emitting display is operated in tandem with lighted instruments or displays mounted elsewhere on the vehicle in which said assembly is mounted.

21. - The assembly of claim 2 wherein the operation of said emitting display is controlled by an electrical circuit including a manually operated switch.

22. - The assembly of claim 1 wherein said information display is passive and includes indicia thereon visible by an occupant of the vehicle in which said assembly is mounted.

23. - The assembly of claim 1 wherein said information display comprises a display element selected from the group consisting of light emitting diodes, incandescent displays, vacuum fluorescent displays, cathode ray tube displays, electroluminescent displays, and liquid crystal displays.

24. - The assembly of claim 1 wherein said information display includes information concerning the operation of a portion of the vehicle in which said assembly is mounted.

25. - The assembly of claim 24 wherein said information is selected from information concerning the operation of a passenger side air bag.

26. - The assembly of claim 24 wherein said information is selected from engine temperature, oil pressure, tire pressure, fuel status, electrical voltage, compass direction, and time.

27. - The assembly of claim 1 wherein said mount includes a releasable coupling allowing said mirror stay and said information display to break away and separate from a mounting member on the vehicle when impacted.

28. - The assembly of claim 27 including a base adapted for attachment to the vehicle on which said assembly is mounted;

said releasable coupling including a spring clip on one of said base and said mirror stay and a retainer on the other of said base and mirror stay, said spring clip and retainer engaging one another to hold said assembly to the vehicle when the base is mounted thereon, but separating from one another when impacted with a force such as in an accident.

29. - The assembly of claim 28 wherein said mirror stay includes a mounting area, said spring clip mounted in said mounting area and having a plurality of retaining flanges to releasably secure said stay, said spring clip and said assembly to said base, said base comprising a windshield mounted button adapted to be secured to the inside surface of the vehicle windshield and having said retainer thereon.

30. - The assembly of claim 29 wherein said windshield mounted button includes a pair of outwardly flared and tapered side edges, an end surface, and a notch in said end surface.

31. - The assembly of claim 28 wherein said base is adapted for attachment to the header area above the front windshield of the vehicle in which said assembly is mounted and includes an aperture therethrough in which said spring clip is mounted;

said mirror stay including a headed fastener projecting from said stay into engagement with said spring clip to releasably secure said assembly to said base.

32. - The assembly of claim 27 wherein said releasable coupling is adapted to engage a button attached to the inside surface of the front windshield of the vehicle in which said assembly is mounted.

33. - The assembly of claim 32 wherein said coupling includes a plurality of resilient retaining flanges on said mirror stay to releasably secure said assembly to the button, said retaining flanges being formed from resilient material and located at positions spaced from one another on said mirror stay for engaging the windshield mounted button to releasably hold the button therebetween and against said mirror stay yet resiliently flex to release the button when the rearview mirror is impacted.

34. - The assembly of claim 1 wherein said mirror support includes a support for adjustably supporting a rearview mirror in viewing position for at least the driver of the vehicle.

35. - The assembly of claim 34 wherein said mirror support is a ball member extending outwardly from said mirror stay;

said information display positioned on said mirror stay above said viewing position of the rearview mirror when supported on said ball member.

36. - The assembly of claim 1 wherein said information display further includes a housing extending over a portion of said mirror stay;

said housing extending outwardly from said mirror stay from a position spaced behind and to the rear of the rearview mirror when supported on said mirror stay, at least a portion of said housing being concealed from view of the vehicle driver by the rearview mirror when supported on said mirror stay.

38. - The assembly of claim 37 wherein said information display includes an emitting display.

39. - The assembly of claim 38 wherein said emitting display includes a display element and a light source for illuminating said display element.

40. - The assembly of claim 39 wherein said information display includes an electrical circuit connected to said light source, said electrical circuit including first electrical wiring for connection to the electrical system of the vehicle in which said assembly is mounted.

41. - The assembly of claim 39 wherein said display element includes indicia thereon;

said light source being positioned for backlighting said indicia on said display element.

42. - The assembly of claim 41 wherein said light source is a light emitting diode.

43. - The assembly of claim 37 wherein said assembly also includes an electrical circuit connected to said light source;

said electrical circuit also including a photo sensor adapted to receive ambient light from adjacent said assembly, said photo sensor connected through said electrical circuit to said light source for controlling the brightness of the light emitted by said light source in relation to the ambient light level adjacent to said information display.

44. - The assembly of claim 43 including a lens for directing ambient light adjacent said assembly to said photo sensor.

45. - The assembly of claim 39 wherein said emitting display includes indicia thereon which are visible to an occupant of the vehicle in which said assembly is mounted only when said indicia are backlit by said light source.

46. - The assembly of claim 39 wherein said display element includes indicia thereon;

said assembly also including an electrical circuit having a plurality of light sources, each of said light sources being adapted to illuminate different indicia on said display element.

47. - The assembly of claim 38 wherein said emitting display is located between said first and second positions of said mirror stay.

48. - The assembly of claim 38 wherein said information display further includes a housing extending over a portion of said mirror stay.

49. - The assembly of claim 48 wherein said housing extends outwardly from said mirror stay from a position spaced behind and to the rear of the rearview mirror when supported on said mirror stay, at least a portion of said housing being concealed from view of the vehicle driver by the rearview mirror when supported on said mirror stay.

50. - The assembly of claim 48 wherein said housing is formed separately from said mirror stay and is removably mounted thereon.

51. - The assembly of claim 37 wherein said mount includes a releasable coupling allowing said mirror stay and said information display to breakaway and separate from a mounting member on the vehicle when impacted.

52. - The assembly of claim 51 including a base adapted for attachment to the vehicle on which said assembly is mounted;

said releasable coupling including a spring clip on one of said base and said mirror stay and a retainer on the other of said base and mirror stay, said spring clip and retainer engaging one another to hold said assembly to the vehicle when the base is mounted thereon, but separating from one another when impacted with a force such as in an accident.

53. - The assembly of claim 51 wherein said releasable coupling is adapted to engage a button attached to the inside surface of the front windshield of the vehicle in which said assembly is mounted.

54. - The assembly of claim 53 wherein said coupling includes a plurality of resilient retaining flanges on said mirror stay to releasably secure said assembly to the button, said retaining flanges being formed from resilient material and located at positions spaced from one another on said mirror stay for engaging the windshield mounted button to releasably hold the button therebetween and against said mirror stay yet resiliently flex to release the button when the rearview mirror is impacted.

55. - The assembly of claim 37 wherein said mirror support is a ball member extending outwardly from said mirror stay;

said second position being above the position of the rearview mirror when supported on said ball member.

57. - The assembly of claim 56 wherein said information display includes an emitting display.

58. - The assembly of claim 57 wherein said emitting display includes a display element and a light source for illuminating said display element.

59. - The assembly of claim 58 wherein said information display includes an electrical circuit connected to said light source, said electrical circuit including first electrical wiring for connection to the electrical system of the vehicle in which said assembly is mounted;

said housing extending over a portion of said mirror stay for concealing said light source, said electrical circuit, and at least a portion of said electrical wiring.

60. - The assembly of claim 59 wherein said electrical circuit includes second electrical wiring for connection of electrical apparatus in a rearview mirror to the electrical system of the vehicle in which said assembly is mounted when the rearview mirror is supported on said mirror support.

61. - The assembly of claim 58 wherein said assembly also includes an electrical circuit connected to said light source;

said electrical circuit also including a photo sensor adapted to receive ambient light from adjacent said assembly, said photo sensor connected through said electrical circuit to said light source for controlling the brightness of the light emitted by said light source in relation to the ambient light level adjacent to said information display.

62. - The assembly of claim 58 wherein said display element includes indicia thereon;

said light source being positioned for backlighting said indicia on said display element.

63. - The assembly of claim 62 wherein said light source is a light emitting diode.

64. - The assembly of claim 56 wherein said housing is formed separately from said mirror stay and is removably mounted thereon.

65. - The assembly of claim 56 including a base adapted for attachment to the vehicle on which said assembly is mounted;

said releasable coupling including a spring clip on one of said base and said mirror stay and a retainer on the other of said base and mirror stay, said spring clip and retainer engaging one another to hold said assembly to the vehicle when the base is mounted thereon, but separating from one another when impacted with a force such as in an accident.

66. - The assembly of claim 56 wherein said releasable coupling is adapted to engage a button attached to the inside surface of the front windshield of the vehicle in which said assembly is mounted.

68. - The assembly of claim 56 wherein said mirror support is a ball member extending outwardly from said mirror stay.

69. - The assembly of claim 56 wherein said information display is positioned on said mirror stay above said viewing position of the rearview mirror when supported on said mirror support.

37. - A rearview mirror support and information display assembly for vehicles comprising:

a rigid mirror stay, a mount for mounting said stay within a vehicle and a mirror support for adjustably supporting a rearview mirror in position for viewing by at least the driver of the vehicle, said mirror support located at a first position on said mirror stay in a position behind and to the rear of the rearview mirror when supported on said mirror support, said mirror stay extending around the position of a rearview mirror when mounted on said mirror support to a second position adjacent the rearview mirror when supported thereon; and

an information display on said mirror stay for displaying information visible to an occupant of the vehicle in which said assembly is mounted, said display positioned at said second position on said mirror stay such that said information display is visible by the vehicle occupant when the rearview mirror is supported on the mirror support.

56. - A rearview mirror support and information display assembly for vehicles comprising:

a rigid mirror stay having a breakaway coupling for releasably mounting said stay within the interior of a vehicle, said coupling allowing said mirror stay to separate from a mounting member on the vehicle when impacted, and an adjustable mirror support on said stay for adjustably supporting a rearview mirror in viewing position for viewing by at least the driver of the vehicle;

said assembly further including a housing on said mirror stay, and a n information display on said housing for displaying information visible to an occupant within the vehicle in which said assembly is mounted;

said assembly having portions concealed from view by the vehicle occupant by the rearview mirror when supported on said mirror support, said housing projecting from behind the rearview mirror such that said information display is positioned adjacent the rearview mirror when supported thereon such that information display is viewable by the vehicle occupant.

67. - The assembly of clam 65 wherein said coupling includes a plurality of resilient retaining flanges on said mirror stay to releasably secure said assembly to the button, said retaining flanges being formed from resilient material and located at positions spaced from one another on said mirror stay for engaging the windshield mounted button to releasably hold the button therebetween and against said mirror stay yet resiliently flex to release the button when the rearview mirror is impacted.