Head-up display apparatus in which reflecting mirror is rotated

Inventor: Tetsuya Ogura (Kanagawa, JP)

Assignee: PANASONIC AUTOMOTIVE SYSTEMS CO., LTD.

G02B27/0149 G02B26/0816 G02B27/0179 G02B2027/0154

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Quick Facts

Patent No.: US 12,181,669
App. No.: 18/233,988
Granted: Dec 31, 2024
Kind: B2

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Abstract

A head-up display apparatus includes: a second reflecting mirror, a first gear, and a rotating apparatus. The second reflecting mirror is rotatable around a first rotation axis C 1 extending in a transversal direction. The first gear is disposed in a lower edge portion of the second reflecting mirror. The rotating apparatus includes a second gear that meshes with the first gear from below and that is rotatable around a second rotation axis C 2 aligned with the first rotation axis C 1 . When the rotating apparatus rotates the second gear, the second reflecting mirror is rotated.

Claims (81)

1. A head-up display apparatus comprising:

a reflecting mirror rotatable around a first rotation axis extending in a transversal direction;

a first gear disposed in a lower edge portion of the reflecting mirror; and

a rotating apparatus including a second gear that meshes with the first gear from below and that is rotatable around a second rotation axis aligned with the first rotation axis, wherein

the reflecting mirror includes:

a left shaft part and a right shaft part extending along the first rotation axis; and

a main body made of resin disposed between the left shaft part and the right shaft part in the transversal direction,

the main body includes:

a front surface having a mirror surface and an offset surface;

a rib extending from a front lower edge portion of the front surface of the main body toward a rear side of the reflecting mirror; and

a coupling part that protrudes downward from the rib such that the first gear is adapted to be fitted into the coupling part, wherein

the offset surface extends downward from a part of the front lower edge portion of the front surface of the main body and above the coupling part, and

a depth of the rib in a first section in contact with the offset surface is larger than a depth of the rib in a second section not in contact with the offset surface, and

when the rotating apparatus rotates the second gear, the reflecting mirror is rotated.

2. The head-up display apparatus according to claim 1 , wherein

a length of the offset surface in the transversal direction is longer than a length of the coupling part in the transversal direction.

3. The head-up display apparatus according to claim 1 , wherein

emboss processing is applied to the offset surface.

4. The head-up display apparatus according to claim 2 , wherein

emboss processing is applied to the offset surface.

5. The head-up display apparatus according to claim 1 , further comprising:

a spring including a winding part inserted through at least one of the left shaft part or the right shaft part and a first arm and a second arm caused to extend linearly from ends of the winding part, wherein

the spring applies a stress to the first gear in a direction of expanding a spacing between the first arm and the second arm.

6. The head-up display apparatus according to claim 2 , further comprising:

the spring applies a stress to the first gear in a direction of expanding a spacing between the first arm and the second arm.

7. The head-up display apparatus according to claim 3 , further comprising:

the spring applies a stress to the first gear in a direction of expanding a spacing between the first arm and the second arm.

8. The head-up display apparatus according to claim 4 , further comprising:

the spring applies a stress to the first gear in a direction of expanding a spacing between the first arm and the second arm.

9. The head-up display apparatus according to claim 1 , wherein