JP2527716Y2 - Vehicle head-up display - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention relates to a vehicle head-up display (hereinafter abbreviated as HUD) comprising a driving information display in a dashboard of a vehicle such as an automobile and a combiner on a windshield for displaying an image displayed by the display. Do).

[0002]

2. Description of the Related Art Conventionally, as shown in FIG.
In the HUD in which the optical path A emitted from the display element 2a in the operation information display 2 disposed in the inside is reflected by the reflector 5 and reflected by the combiner 6 deposited on the inner surface of the windshield 4 to display an image forward. Since the position of the eyes differs depending on the height of the driver, the eye range R needs to be increased, and for this purpose, the diameter of the optical path A and the opening 10 of the dashboard 1 through which the reflected light passes need to be as large as possible.

[0003]

However, since various parts are mounted in the dashboard of a recent vehicle, there is no space in the dashboard to allow a large optical path diameter, and there is no opening on the dashboard. In fact, we want to make the vehicle as small as possible from the viewpoint of the appearance of the vehicle.

This invention provides a HUD having a sufficient optical path diameter even in a dashboard on which various parts are mounted, a small opening provided in the dashboard for passing reflected light, and a large eye range. Make it an issue. As the prior art data of the present application, Japanese Utility Model Application Laid-Open No. 63-18573
No. 5 publication.

[0005]

The present invention, which has been made to solve the above-mentioned problems, has an optical path from a driving information display arranged in a dashboard of a vehicle to a combiner deposited on an inner surface of a windshield. In a vehicular head-up display provided with a reflector , the reflector is provided.
The first shaft extending in the vehicle width direction is rotatably supported.
A first support portion, and a vehicle height provided on the first support portion.
A second axis extending in the direction of rotation, rotatably supported, and the reflection plate
And a second support portion that makes the vehicle rotatable in the vehicle width direction.
It is characterized by:

[0006]

According to the present invention, there is provided a vehicle head assembly having the above configuration.
In the display, the optical path exiting from the driving information display is reflected by the reflector, but the optical path diameter of the reflected light can be freely changed by changing the angle of the incident light to the reflector, that is, the incident angle. Since the direction of the optical path from the operation information display to the reflector is constant, the change of the incident angle can be achieved by rotating the reflector. Here, the first support portion is
The first shaft extending in the vehicle width direction provided on the firing plate is rotatable.
And the second support is a vehicle provided on the first support.
The second shaft extending in the high direction is rotatably supported, and the reflection plate is
Rotatable in the vehicle width direction. Therefore, the reflector is
In the vehicle direction and in the vehicle width direction.
Each adjustment allows the reflected light to pass,
It is possible to make the opening provided in the hash board small.
Even if the opening is small in this way, the reflector can freely move in the vehicle height direction
To respond to differences in eye range in the vehicle height direction
it can. Also, for example, the driver's seat
The position fluctuates back and forth, thereby positioning the driver's eyes
May also vary from side to side (vehicle width direction).
Since the firing plate rotates freely in the vehicle width direction, such a rose
We can cope with moonlight.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to FIGS. Note that the same components as those in FIG. 3 are denoted by the same reference numerals, and description thereof will be omitted. First, with reference to FIG. 2, a description will be given of a reflection plate driving mechanism, which is a main part of the present embodiment. Reference numeral 3 denotes a case in which a tension spring 13 and a worm gear 14 are arranged. Spring 13 for tension
The substantially central portion of the projection 30 has a protrusion 30 provided in the case 3.
2 and one end is engaged and fixed to the projection 303. The worm gear 14 is rotated via a cable 16. 301 is a bearing. 1
Reference numeral 1 denotes a reflector support. The reflection plate 5 is mounted on the holder 12. The holder 12 is provided with a rotating shaft 121, and the gear 9 is integrally formed on one of the rotating shafts and concentrically with the rotating shaft 121. The holder 12 is rotatably supported by the bearing 112 of the reflector support 11. The gear 8 is also rotatably provided on the reflection plate support portion 11, and is provided with a gear 70 provided on the stepping motor 7.
1 is engaged. When the holder 12 is mounted on the reflection plate support 11, the gear 9 of the holder meshes with the gear 8. Also,
Reference numeral 113 denotes a rotation axis of the reflection plate support portion 11, and a gear 111.
Are formed around the rotation shaft 113. A protrusion 114 is integrally formed on the bottom rear surface.

Reference numeral 15 denotes a cover, which is a non-reflective glass 151.
Are fixed by a glass holder 152. Cover 1
The portion corresponding to the fifth non-reflective glass 151 is open. Case 3 and reflector support 11 configured as described above
The cover 15 is assembled so that the upper opening of the case 3 is closed by the cover 15 after the reflector supporting portion 11 is assembled to the case 3. At this time, the reflection plate support 11
Is inserted into the bearing 301 of the case 3 so that the reflection plate support 11 is rotatably mounted and the gear 1
11 meshes with the worm gear 14, and
The other end of the tension spring 13 is abutted.
With this tension spring 13, the reflection plate support portion 1 is formed.
1 is urged toward the worm gear 14 (to the left in FIG. 2) to prevent backlash of the reflector support 11 .

[0009] To explain the operation of the reflector movable portion assembly, when the worm gear 14 manually or electrically via the cable 16 is driven to rotate, the reflecting plate support portion 11 is pivot axis
It rotates in the direction shown by the arrow A in the figure around the rotation center 13 . When the stepping motor 7 is driven, the reflection plate 5 rotates in the direction of arrow B about the rotation shaft 121 as a rotation center . In this embodiment, the holder 12
Is provided on the first shaft extending in the vehicle width direction.
Axis ", and the reflector support 11 is referred to as a" first support ".
Is equivalent to In addition, the rotation provided on the reflection plate support portion 11
The shaft 113 corresponds to the “second shaft extending in the vehicle height direction”,
The case 3 including the bearing 301 of the rotating shaft 113
Support portion ".

[0010] The reflector movable part assembly is a dashboard.
1 is assembled. FIG. 1 is a simplified view showing only the position of the reflector 5. This will be described below with reference to FIG. The dashboard 1 includes a display element 2a and a light source 2b.
Driving information display 2 is arranged consisting of the optical path A perpendicular pivot axis to the plane 121 from the driving information display 2
(As described above, this is the "first axis extending in the vehicle width direction."
Is equivalent to The reflected light reflected by the reflecting plate 5 which can rotate around ( ) passes through the opening 10 provided in the dashboard 1 and is further reflected by the combiner 6 deposited on the windshield 4, and the driver's eyes E (E 1 , E 2 ). As a result, the driver can visually recognize desired driving information in front of the driver with his / her head raised regardless of height. Since the direction of the optical path A from the operation information display 2 to the reflector 5 is constant, the change of the incident angle can be achieved by rotating the reflector 5 around the rotation axis 121. Therefore, when the rotation angle of the reflector 5 is selected, the optical path diameter D of the reflected light can be maintained at a required value, and the opening 10 of the dashboard 1 through which the reflected light passes can be reduced. As a result, the appearance of the dashboard 1 is improved. In addition, by driving the reflection plate 5, a tall driving is performed.
Person at the position of the eye E1, small driver's stature can see the images at the position of the eye E 2, it is possible to increase the eye range R.

Similarly, the rotating shaft 113 (as described above,
Corresponds to the “second axis extending in the vehicle height direction”. ) When the reflector 5 is rotated around the can to reduce the opening 10 of the dashboard to the vehicle width direction of movement of the eye range. For example, due to different heights, the driver's seat position
Variability from front to back, which causes the driver's eyes to be left and right
It is conceivable that the variation may occur in the vehicle width direction.
In the reflection plate 5 is freely rotated in the vehicle width direction again <br/> without increasing the dashboard opening 10, to variations in the lateral position of the eyes of the OPERATION car can respond. still,
The rotation of the reflection plate 5 by the holder 12 may be performed manually.

[0012]

As described above, the vehicle head unit according to the present invention has been described.
According to the top display, on the optical path from the driving information display in the dashboard to the combiner of the windshield, the reflector can be rotated in both the vehicle height direction and the vehicle width direction. By adjusting the rotation angle, it is possible to reduce the optical path diameter of the reflected light and to reduce the opening provided in the dashboard for transmitting the reflected light. Therefore, the appearance of the dashboard is improved. Also,
Necessary optical paths and optical path diameters can be ensured even in a dashboard on which many articles are mounted. Further
In addition, the reflector can rotate freely in the vehicle height direction, so the eye range
Is significantly larger, and drivers of different heights
It can be seen without any obstacles, and the reflector is in the vehicle width direction.
The front and rear of the driver's seat position
It is also possible to prevent the driver's eye position
I can respond.

[Brief description of the drawings]

FIG. 1 is a side view of a main part of one embodiment.

FIG. 2 is an exploded perspective view showing a driving mechanism of the reflection plate.

FIG. 3 is a side view of a main part of a conventional vehicle head-up display.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dashboard 2 Operation information display 4 Windshield 5 Reflector 6 Combiner

Claims (1)

(57) [Scope of request for utility model registration] 1. A vehicle head-up display having a reflector in an optical path from a driving information display disposed in a dashboard of a vehicle to a combiner deposited on an inner surface of a windshield, wherein the vehicle is provided on the reflector. Turn the first axis extending in the width direction
A first support portion movably supported, and a second support portion provided on the first support portion and extending in a vehicle height direction.
The shaft is rotatably supported, and the reflection plate is pivoted in the vehicle width direction.
The vehicle head-up display, characterized in that the second support portion, provided with a to standing.