POSITIONING SYSTEM FOR HEAD-UP DISPLAY

• US 20120188650A1
• Filed: 01/20/2011
• Published: 07/26/2012
• Est. Priority Date: 01/20/2011
• Status: Active Grant

• Current Assignee: MAGNA Electronics Solutions GmbH (Magna International Incorporated)
• Original Assignee: MAGNA Electronics Solutions GmbH (Magna International Incorporated)
• Inventors: Hopf, Christian, RUMPF, Horst, Noel, Alexander
• Granted Patent: US 8,953,247 B2
• Time in Patent Office: Days
• US Class Current: 359/630
• CPC Class Codes: G02B 2027/0156 with optionally usable elements
• CPC Class Codes: G02B 27/0149 characterised by mechanical features G02B27/0176 takes precedence
• CPC Class Codes: G02B 7/005 Motorised alignment

Abstract

The invention relates to a positioning system for a head-up display which comprises a combiner carrier being moved between a first position and a second position; a combiner rotatbly disposed on the combiner carrier and a tilt angle of the combiner being adjusted; and a driving mechanism for alternatively driving the movement of the combiner and the tilt angle adjustment of the combiner.

Claims

1. A positioning system for a head-up display, which comprises:

a combiner carrier, being moved between a first position and a second position;

a combiner, rotatbly disposed on the combiner carrier and a tilt angle of the combiner being adjusted; and

a driving mechanism for alternatively driving the movement of the combiner and the tilt angle adjustment of the combiner.

2. The positioning system for the head-up display according to claim 1, wherein the driving mechanism drives the tilt angle adjustment of the combiner when the combiner is at the second position.

3. The positioning system for the head-up display according to claim 1 further comprising a moving mechanism for moving the combiner carrier from the first position to the second position, and an angle adjusting mechanism for adjusting the tilt angle of the combiner, wherein the driving mechanism alternatively drives the moving mechanism and the angle adjusting mechanism.

4. The positioning system for the head-up display according to claim 1 further comprising a spindle rotatably disposed on the combiner carrier, and wherein the driving mechanism comprises:

a driving gear, disposed on the spindle;

a guiding plate, disposed on the spindle and having a guiding pin; and

a guiding slot, for accommodating the guiding pin and having a straight slot and a curve slot;

wherein, when the guiding pin is in the straight slot, the spindle is prohibited from rotating, and the driving mechanism drives the movement of the combiner,

wherein, when the guiding pin is in the curve slot, the spindle is allowed to rotate, and the driving mechanism drives the tilt angle adjustment of the combiner.

5. A positioning system for a head-up display, which comprises:

a combiner carrier;

a combiner rotatably disposed on the combiner carrier;

a moving mechanism for moving the combiner carrier from a first position to a second position;

an angle adjusting mechanism for adjusting a tilt angle of the combiner; and

a driving mechanism for alternatively driving the moving mechanism and the angle adjusting mechanism.

6. The positioning system for the head-up display according to claim 5, wherein the driving mechanism switches to drive the angle adjusting mechanism after it drives the moving mechanism to carry the combiner carrier to the second position.

7. The positioning system for the head-up display according to claim 5, wherein the driving mechanism comprises a planetary gear train having a sun gear and a planet gear,

wherein the planet gear is engaged with the sun gear,

wherein when the planet gear is rotated at a fixed position, the sun gear is driven to rotate by the planet gear to drive the moving mechanism,

wherein when the planet gear is revolved about the sun gear, the angle adjusting mechanism is driven by the planet gear.

8. The positioning system for the head-up display according to claim 5, wherein the driving mechanism comprises:

a planetary gear train, having a sun gear and a planet gear, wherein the planet gear is engaged with the sun gear;

a sleeve, connected to the planet gear and having a guiding pin; and

a guiding slot, for accommodating the guiding pin and having a straight slot and a curve slot;

wherein, when the guiding pin is in the straight slot, the planet gear is rotated at a fixed position and drives the sun gear to rotate,

wherein, wherein the guiding pin is in the curve slot, the planet gear is revolved about the sun gear, and the sun gear is prohibited to rotate.

9. The positioning system for the head-up display according to claim 8, wherein the planetary gear train further comprises a ring gear, the planet gear is engaged between the sun gear and the ring gear, and the ring gear is the driving source of the planetary gear train.

10. The positioning system for the head-up display according to claim 9, wherein the ring gear is driven by a belt gear.

11. The positioning system for a head-up display according to claim 8, wherein the angle adjusting mechanism comprises:

a cam disposed on the sleeve and capable of rotating with the sleeve; and

a lever, wherein one end of which is fixed on the combiner and the other end is a free end;

wherein, when the planet gear is revolved about the sun gear, the sleeve is driven to rotate by the planet gear, and the cam is rotated together with the sleeve and pushes the free end of the lever to adjust the tilt angle of the combiner.

12. The positioning system for a head-up display according to claim 11, wherein the angle adjusting mechanism further comprises:

a service lever, wherein one end of which is movably connected to the lever, and the other end is rotatably disposed on the sleeve; and

a pin, provided on the cam,

wherein, the cam is further rotated together with the sleeve, the pin pushes the service lever to further adjust the tilt angle of the combiner.

13. The positioning system for the head-up display according to claim 5, wherein the moving mechanism comprises:

a spindle, rotatably disposed on the combiner carrier;

a rack, having a stopper at its one end; and

a gear wheel disposed on the spindle and engaged with the rack;

wherein, when the spindle is driven to rotate, the gear wheel is rotated together and relatively moves on the rack for moving the combiner carrier.

14. The positioning system for the head-up display according to claim 5, wherein the moving mechanism comprises a spindle rotatably disposed on the combiner carrier, and the driving mechanism comprises a planetary gear train having a sun gear, a planet gear and a sleeve, wherein the planet gear is engaged with the sun gear, the sun gear is disposed on the spindle, and the sleeve is rotatably disposed on the spindle and is connected to the planet gear and the angle adjusting mechanism,

wherein when the planet gear is rotated at a fixed position, the sun gear is driven to rotate by the planet gear so that the spindle is rotated together with the sun gear to drive the moving mechanism,

wherein when the planet gear is revolved about the sun gear, the sleeve is driven to rotate by the planet gear to drive the angle adjusting mechanism.