Compass display for a vehicle

• US 20040000062A1
• Filed: 06/28/2002
• Published: 01/01/2004
• Est. Priority Date: 06/28/2002
• Status: Abandoned Application

• Current Assignee: Johnson Controls Technology Company (Johnson Controls International plc)
• Original Assignee: Johnson Controls Technology Company (Johnson Controls International plc)
• Inventors: Olson, Thomas R., Smith, Nels R., Buege, Robert F., Hansen, Scott A.
• Application Number:
  US10/186,362
• Publication Number:
  US 20040000062A1
• Time in Patent Office: Days
• US Class Current: 33/348
• CPC Class Codes: B60J 3/0204 Sun visors
• CPC Class Codes: B60R 11/0229 for displays, e.g. cathodic tubes
• CPC Class Codes: B60R 2011/0035 Sun visors
• CPC Class Codes: G01C 17/24 Illumination

Abstract

A compass display or a low cost construction includes a display coupled to compass sensing and calibration devices to illuminate a portion of the display to indicate a specific heading. The display is mounted beneath a finish covering surface and includes indicia representing compass directional headings attached or printed thereon and the finish covering is supported by a substrate having a plurality of openings spaced relative to a center point and a plurality of light sources such as LED lights located in the holes of the substrate to be located behind the finish covering and aligned with the directional headings. When a light is illuminated, it is visible behind the finish covering to a driver or other occupant of the vehicle. In a preferred embodiment, twelve openings and associated light sources are provided in the substrate and spaced at 30-degree increments to provide a more precise indication of the vehicle heading. The compass display may be located on the instrument panel, in the headliner, on the A-pillar, on a visor or in any other advantageous location within the passenger compartment. For a movable object like the visor location, a switch is provided to disconnect a power source for the compass display when the visor is moved from its stowed, operating position.

Claims

1. A compass display for displaying a heading direction, the compass display capable of communicating with a compass system, the compass display comprising:

a first surface having a set of compass referents corresponding to geographical directions; and

a plurality of light sources located with respect to the first surface, a light source of the plurality of light sources corresponds to a respective referent of the set of compass referents of the compass display and wherein a directional signal generated by the compass system communicates with at least one light source of the plurality of light sources to display the heading direction.

2. The compass display of claim 1 wherein the compass display further comprises a surface covering comprising the first surface and the set of compass referents are located on the surface covering

3. The compass display of claim 2 wherein the surface covering comprises a plurality of holes corresponding to the plurality of light sources.

4. The compass display of claim 2 wherein the surface covering comprises a fabric material and further wherein the compass referents are located on the fabric material.

5. The compass display of claim 1 wherein the compass display further comprises a housing having a plurality of holes therein, the housing comprising the first surface and having a plurality of holes wherein a light source of the plurality of light sources corresponds to a hole of the plurality of holes.

6. The compass display of claim 2 wherein each light source of the plurality of light sources comprises a light emitting diode.

7. The compass display of claim 1 further comprising a visor having a first side and wherein the first surface of the compass display comprises the first side of the visor.

8. The compass display of claim 2 further comprising a visor having a first side and wherein the surface covering of the compass display comprises the first side of the visor.

9. The compass display of claim 7 wherein the visor is for use in a passenger compartment of a vehicle, the visor being movable from a stowed position in which the compass display is viewable within the passenger compartment, the compass display further comprising a switch for turning off the compass display when the visor is moved from the stowed position.

10. The compass display of claim 7 wherein the compass display further comprises a housing, the plurality of lights extending with respect to the housing and further wherein the visor comprises a core having a first core portion having a first side, a second side and a plurality of holes therein, the housing positioned on the second side of the first core portion of the visor such that the plurality of lights correspond to the plurality of holes in the first core portion and the plurality of lights can be seen from the first side of the first core portion of the visor.

11. The compass display of claim 10 wherein the core further comprises a second core portion connected to first core portion and the housing is positioned between the first core portion and the second core portion.

12. The compass display of claim 8 wherein the compass display further comprises a housing, the plurality of lights extending with respect to the housing and further wherein the visor comprises a core having a first core portion having a first side, a second side and a plurality of holes therein, the housing positioned on the second side of the first core portion of the visor such that the plurality of lights correspond to the plurality of holes in the first core portion, the surface covering positioned to cover at least the first side of the first core portion of the visor.

13. The compass display of claim 12 wherein the core further comprises a second core portion connected to first core portion and the housing is positioned between the first core portion and the second core portion and the surface covering covers both the first core portion and the second core portion.

14. The compass display of claim 7 wherein the set of compass referents comprises directional indicia located on the first side of the visor, the directional indicia including a first indicia representing a North geographic direction, a second indicia representing a South geographic direction, a third indicia representing an East geographic direction and a fourth indicia representing a West geographic direction.

15. The compass display of claim 8 wherein the set of compass referents comprises directional indicia located on the surface covering of the visor, the directional indicia including a first indicia representing a North geographic direction, a second indicia representing a South geographic direction, a third indicia representing an East geographic direction and a fourth indicia representing a West geographic direction.

16. The compass display of claim 2 further comprising a headliner for a vehicle, the headliner having a first surface and wherein the surface covering of the compass display comprises the first surface of the headliner.

17. The compass display of claim 2 further comprising an interior trim surface located within a passenger compartment of a vehicle, and wherein the surface covering of the compass display comprises the interior trim surface.

18. The compass display of claim 17 wherein the interior trim surface is a trim cover for an A pillar in the vehicle.

19. The compass display of claim 17 wherein the interior trim surface is a trim cover for a dashboard.

20. A compass display for use in a visor in a vehicle, the compass display for displaying a heading direction of the vehicle, the compass display having a center point and being capable of communicating with a compass system, the compass system generating a directional signal corresponding to the heading direction of the vehicle, the compass display comprising:

a first surface having a first side and a second side, the first surface located on the visor to be viewed by an occupant of the vehicle when the visor is in a stowed position, the first surface having a set of compass referents corresponding to geographical directions; and

a light source located with respect on the second side of the first surface and arranged to correspond to a first respective referent of the set of compass referents and wherein the directional signal generated by the compass system communicates with the light source to energize the light source to display the heading direction of the vehicle.

21. The compass display of claim 20 wherein the first surface comprises a hole extending from the first side to the second side and the light source is aligned with the hole.

22. The compass display of claim 20 further comprising a surface covering located on and covering the first side of the first surface of the visor, the surface covering being viewable when the visor is located in a stowed position, the light source being viewable through the surface covering when the compass system energizes the light source to display the heading direction of the vehicle.

23. The compass display of claim 21 further comprising a surface covering located on and covering the first side of the first surface of the visor, the surface covering being viewable when the visor is located in a stowed position, the surface covering having a hole aligned with the hold in the first surface of the visor such that the light source is viewable through the surface covering when the compass system energizes the light source to display the heading direction of the vehicle.

24. The compass display of claim 20 wherein the visor is movable from the stowed position, the compass display further comprising a switch for turning off the compass display when the visor is moved from the stowed position.

25. The compass display of claim 24 wherein the visor of the compass display further comprises a pivot rod assembly for connecting the visor to the passenger compartment of the vehicle, the pivot rod assembly including a pivot rod having a first end disposed in the visor and a second end disposed external the visor, the second end of the pivot rod for pivotally mounting the visor to the vehicle, the pivot rod having a circular cross section having a first flat surface, the flat surface communicating with the switch when the visor is moved from the stowed position.

26. The compass display of claim 20 wherein each light source of the plurality of light sources comprises a light emitting diode.

27. The compass display of claim 20 wherein the compass display further comprises a housing, the plurality of lights extending with respect to the housing and further wherein the visor comprises a core layer portion having a first core portion having a first side, a second side and a plurality of holes therein, the housing positioned on the second side of the first core portion of the visor such that the plurality of lights correspond to the plurality of holes in the first core portion, the surface covering positioned to cover at least the first side of the first core portion of the visor.

28. The compass display of claim 27 wherein the core further comprises a second core portion connected to first core portion and the housing is positioned between the first core portion and the second core portion and the surface covering covers both the first core portion and the second core portion.

29. A visor for use in a vehicle, comprising

a compass display for displaying a heading direction of the vehicle, the compass display including a set of compass referents, the compass display capable of communicating with a compass system generating a directional signal corresponding to the heading direction of the vehicle;

a first surface having a first side and a second side, the first surface located in the vehicle to be viewed by an occupant of the vehicle when the visor is in a stowed position, the first surface having a set of compass referents corresponding to geographical directions; and

a light source located with respect on the second side of the first surface and arranged to correspond to a first respective referent of the set of compass referents and wherein the directional signal generated by the compass system communicates with the light source to energize the light source to display the heading direction of the vehicle.

30. The visor of claim 29 wherein the first surface comprises a hole extending from the first side to the second side and the light source is aligned with the hole.

31. The visor of claim 29 further comprising a surface covering located on and covering the first side of the first surface of the visor, the surface covering being viewable when the visor is located in a stowed position, the light source being viewable through the surface covering when the compass system energizes the light source to display the heading direction of the vehicle.

32. The visor of claim 30 further comprising a surface covering located on and covering the first side of the first surface of the visor, the surface covering being viewable when the visor is located in a stowed position, the surface covering having a hole aligned with the hold in the first surface of the visor such that the light source is viewable through the surface covering when the compass system energizes the light source to display the heading direction of the vehicle.

33. The visor of claim 29 wherein the visor is movable from the stowed position, the compass display further comprising a switch for turning off the compass display when the visor is moved from the stowed position.

34. The visor of claim 33 further comprising a pivot rod assembly for connecting the visor to the passenger compartment of the vehicle, the pivot rod assembly including a pivot rod having a first end disposed in the visor and a second end disposed external the visor, the second end of the pivot rod for pivotally mounting the visor to the vehicle, the pivot rod having a circular cross section having a first flat surface, the flat surface communicating with the switch when the visor is moved from the stowed position.

35. The visor of claim 29 wherein each light source of the plurality of light sources comprises a light emitting diode.

36. The visor of claim 29 wherein the compass display comprises a housing, the plurality of lights extending with respect to the housing and further wherein the visor comprises a core layer portion having a first core portion having a first side, a second side and a plurality of holes therein, the housing positioned on the second side of the first core portion of the visor such that the plurality of lights correspond to the plurality of holes in the first core portion, the surface covering positioned to cover at least the first side of the first core portion of the visor.

37. The compass display of claim 36 wherein the core further comprises a second core portion connected to first core portion and the housing is positioned between the first core portion and the second core portion and the surface covering covers both the first core portion and the second core portion.