JP4675824B2 - Vehicle display device - Google Patents

Description

  The present invention belongs to the technical field of a vehicular display device that displays a virtual image in the vicinity of a front field of view on a windshield of a vehicle.

Conventionally, in a vehicular display device in which a display image of a display device arranged on a dashboard with a display surface facing upward is reflected to a driver's seat near the dashboard boundary of the windshield view, A reflector having a matching surface that matches the inner surface of the board side and a dark-colored reflecting surface, and the matching surface and the reflecting surface form a set angle based on the optical positional relationship between the display and the driver's side viewpoint. The reflectors that are assembled together are arranged in the vicinity of the dashboard boundary of the windshield with the meeting part of the reflectors facing up, and the display image of the display is reflected to the driver's seat side by the reflecting surface of the reflectors (For example, refer to Patent Document 1).
Utility Model Registration No. 2546188 (page 1-3, all figures)

However, conventionally, there has been a problem in the positional relationship between the reflector and the front window shield, so that the device performance has not been sufficient.
This point will be described in detail.
When the reflector in the conventional example is not fixed to the front window shield, the reflector vibrates due to external vibration and comes into contact with the front window shield to generate an unpleasant sound.

  Next, when fixing the reflector in the conventional example to the front window shield, it is technically difficult to secure the strength of adhesion and the like over a long period of time, and the adhesive surface when viewed from the outside of the vehicle is also difficult. Appearance is also a problem in terms of merchandise.

Next, in the case where the reflector in the conventional example is arranged at a distance from the front window shield, the window reflection of the reflector is observed from the driver, which may interfere with the front field of view.
Further, since the conventional reflector is compatible with the eye range, the reflector has a relatively large size, which may hinder the driver's forward field of view.
Further, when the conventional reflector is manufactured by the most common injection molding as a manufacturing means, there is a problem because sink marks (surface dents) on the surface of the component occur as the thickness of the component increases.

  The present invention has been made paying attention to the above-mentioned problems, and the object of the present invention is to provide a display device for a vehicle that does not generate an unpleasant sound, has a good appearance, does not interfere with windowing and forward vision, and is compatible with an eye range. Is to provide.

In order to achieve the above object, in the present invention, a display device for a vehicle that displays a display image of a display device by reflecting the display image of a display device toward a driver with a reflector disposed in the vicinity of a front window shield, the reflector is supported. An arm that rotates so that the upper end of the reflector abuts the front window shield in a direction in which the reflector rises with the lower part of the reflector as an axis, and urges the arm in a direction in which the reflector rises the a reflector upper the front window biasing means Ru abutted on shield, the upper end of the reflector in a state of abutting on the front window shield by said biasing means to move said arm in the longitudinal direction Adjusting means for changing the angle of the reflector.

  Therefore, the display device for a vehicle according to the present invention does not generate an unpleasant sound, has a good appearance, and can cope with an eye range without obstructing windowing and front vision.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment for realizing a vehicle display device of the present invention will be described based on Example 1 according to claims 1 and 2.

First, the configuration will be described.
FIG. 1 is an explanatory diagram of the structure of the vehicle display device according to the first embodiment.
The vehicle display device according to the first embodiment includes a combiner 1, an actuator 2, a feed screw 3, a moving nut portion 4, a damper 5, a spring 6, a closing stopper 7, and a display device 8 as main components.
The combiner 1 reflects the display of the display unit 8 toward the eyes of the driver by the reflecting surface which is the lower surface in FIG. The combiner 1 may form a reflective surface with a mirror that performs total reflection, or may form a reflective surface with a half mirror that is semi-reflective and semi-transmissive.

The actuator 2 drives a worm 22 provided on the output shaft 21 by control means (not shown).
The feed screw 3 is provided with a worm wheel 31 at one end, is disposed so as to be orthogonal to the axial direction of the output shaft 21 of the actuator 2, and is rotatably supported by support portions 32 and 33. Further, the worm wheel 31 is engaged with the worm 22 of the actuator 2 so as to be driven by the actuator 2.

The moving nut portion 4 is provided with a threaded hole penetrating inside, and is engaged with the feed screw 3 between the support portions 32 and 33. Thereby, the movement nut portion 4 can be controlled to move in the axial direction of the feed screw 3 by the rotation of the feed screw 3.
In addition, although not shown, there is another means for holding the posture so that the moving nut portion 4 can move without rotating by the rotation of the feed screw 3 by penetrating another guide rod or holding the position with a rail or the like. Shall be provided.
Next, the attachment structure to the moving nut part 4 of the combiner 1 is demonstrated.
The combiner 1 is supported by an arm 11, and the base end of the arm 11 is rotatably supported by the moving nut portion 4 within a predetermined angle range. As shown in FIG. 1, the arm 11 extends obliquely upward from a base end portion provided on the moving nut portion 4 in a state where the combiner 1 is tilted substantially horizontally.

Further, a spring 6 is provided at the base end portion of the arm 11 to urge the arm 11 in the upward rotation direction.
When the combiner 1 shown in FIG. 1 is in a collapsed state, as shown in FIG. 1, the closing stopper 7 is provided on the fixing member, and the closing stopper 7 is attached to the arm 11 when the moving nut portion 4 is positioned on the actuator 2 side. The arm 11 falls so that it comes into contact.

Further, a gear is provided at the base end portion of the arm 11, a gear portion to be engaged with the gear is provided in parallel, and a damper 5 configured to rotate in the same rotational direction as the arm 11 is provided.
This damper 5 gives resistance and opens slowly when the arm 11 tries to open at a high speed.

  In this vehicle display device, the actuator 2 side is the vehicle front side, the front window shield 9 is disposed on the front side, and the indicator 8 is provided below the vehicle rear side.

Next, the operation will be described.
[Combiner fixing and adjusting]
The opening operation | movement of the combiner 1 at the time of using the display apparatus for vehicles of Example 1 is demonstrated.
2 and 3 are explanatory views of the combiner open state of the vehicle display device according to the first embodiment.

  First, in a state where the combiner 1 is closed, the combiner 1 is always urged by the spring 6 in the opening direction. However, since the moving nut portion 4 is drawn toward the front side of the vehicle, the arm 11 of the combiner 1 is operated. Is in contact with the closing stopper 7 and is suppressed, so that the combiner 1 does not open (see FIG. 2 (a)).

  Next, when the actuator 2 is driven to put the combiner 1 into use, the drive is transmitted from the worm 22 provided on the output shaft 21 to the worm wheel 31 and the feed screw 3 rotates. Then, the moving nut part 4 moves to the vehicle rear side by the rotation of the feed screw 3. Then, the position at which the arm 11 of the combiner 1 engages with the stopper 7 changes, the suppression gradually decreases, and the combiner 1 starts to open due to the urging force of the spring 6 (see FIG. 2B).

  Furthermore, when the moving nut portion 4 moves to the vehicle rear side by driving the actuator 2, the arm 11 of the combiner 1 does not come into contact with the stopper 7. Then, the combiner 1 is opened by the urging force of the spring 6 until the upper end portion abuts against the front window shield 9. At this time, it is possible to suppress the impact and the sound of hitting the front window shield 9 by the buffer function of the damper 5 (see FIG. 2 (c)).

When the moving nut portion 4 is further moved to the vehicle rear side from the state where it abuts against the upper end portion of the combiner 1 and the front window shield 9, the rotation base end of the arm 11 of the combiner 1 moves, thereby the combiner 1. Is changed, that is, the reflection angle with respect to the display 8 is changed.
When the opening angle of the combiner 1 is increased, the arm 11 of the combiner 1 is urged by the spring 6 and the state in which the upper end portion of the combiner 1 hits the front window shield 9 is maintained. There is no such thing (see Fig. 3 (a)).

  Furthermore, if the moving nut part 4 is moved to the vehicle rear side, the opening angle of the combiner 1 will become large. The driver can change the opening angle of the combiner 1 by performing the operation of changing the feed position of the moving nut portion 4 in this way, and can make adjustments so that it can be easily seen. The ability to perform this adjustment means that various eye points can be handled (see FIG. 3B).

  Further, if the moving nut portion 4 is returned from the state of FIG. 3 (b), adjustment to reduce the opening angle of the combiner 1 can be performed, and if it is returned to the state of FIG. 2 (a), Can be folded and stored.

  In the vehicular display device according to the first embodiment, the combiner 1 is urged by the spring 6 and abuts against the front window shield 9, so that no unpleasant noise is generated by vibration. Further, the appearance of the abutting state is not a problem on the product. In addition, being able to be brought into contact with the front window shield 9 ensures the front field of view close to the limit and does not cause windowing. Further, since the combiner 1 may be a uniform one such as a plate shape as shown in FIG. 1, even if it is manufactured by injection molding, it does not have to have a shape that causes sink marks on the surface. Furthermore, the fact that the angle can be adjusted while maintaining the state where the upper end of the combiner 1 is abutted against the front window shield 9 corresponds to the eye range well, and the size of the combiner 1 can be suppressed to the minimum. It can be something that doesn't interfere with visibility.

  Further, if a sensor is provided for the rotation and position of the feed screw, the previous combiner 1 opening can be stored and reproduced. Moreover, since the opening degree can be controlled, an angle that is easy to see for each person can be individually reproduced by combining with the drive position.

Next, the effect will be described.
In the vehicle display device according to the first embodiment, the effects listed below can be obtained.

  (1) In a display device for a vehicle that displays the display image of the display 8 by reflecting it toward the driver with the combiner 1 arranged in the vicinity of the front window shield 9, the upper end of the combiner 1 is brought into contact with the front window shield 9. A structure in which the base end portion of the arm 11 to be movable is attached to the moving nut portion 4 by a rotation shaft, the spring 6 that biases the upper end of the combiner 1 against the front window shield 9, and the upper end of the combiner 1 Since it has the moving nut portion 4 and the feed screw 3 that change the angle of the combiner 1 by moving the lower end position of the combiner 1 while being in contact with the front window shield 9, the window looks good without generating unpleasant noise. It is compatible with eye range without obstructing the image and forward view.

  (2) Since the combiner 1 has a substantially plate shape and is made of a resin material, the combiner 1 can be manufactured favorably by injection molding, thereby reducing the cost and making the product look good.

  As mentioned above, although the display apparatus for vehicles of the present invention has been described based on the first embodiment, the specific configuration is not limited to these embodiments, and the invention according to each claim of the claims is described. Design changes and additions are allowed without departing from the gist.

  For example, in Example 1, it was a combination of a feed screw and a moving nut part, but the moving nut part may be provided with a rotating shaft of a combiner and move directly back and forth. It doesn't matter. Examples include a feed ball screw, a rack and pinion, a link, and a belt.

BRIEF DESCRIPTION OF THE DRAWINGS It is structure explanatory drawing of the display apparatus for vehicles of Example 1. FIG. It is explanatory drawing of the combiner open state of the display apparatus for vehicles of Example 1. FIG. It is explanatory drawing of the combiner open state of the display apparatus for vehicles of Example 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combiner 11 Arm 2 Actuator 21 Output shaft 22 Worm 3 Feed screw 31 Worm wheel 32 Support part 33 Support part 4 Moving nut part 5 Damper 6 Spring 7 Closing stopper 8 Indicator 9 Front window shield h Driver's eyes

Claims (2)

In a display device for a vehicle that displays a display image of a display device by reflecting it toward a driver with a reflector disposed in the vicinity of the front window shield,
An arm that supports the reflector and rotates so that the upper end of the reflector abuts against the front window shield in a direction in which the reflector rises with the lower portion of the reflector as an axis ;
The biasing the arm in a direction in which the reflector is sitting up, and the reflector upper the front window biasing means Ru abutted on shield,
Adjustment means for changing the angle of the reflector by moving the arm in the front-rear direction in a state where the upper end of the reflector is abutted against the front window shield by the biasing means;
A vehicle display device comprising: The vehicle display device according to claim 1,
The vehicle display device, wherein the reflector has a substantially plate shape and is made of a resin material.

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