JPS5833001Y2 - Car mirror device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a blind area visual recognition device for trunks, buses, and other automobiles.

In the case of large trunks and other vehicles in which the driver's seat is placed high upright, there is a blind area on the left side of the driver, even though the vehicle is equipped with a main outside mirror and an under mirror outside the vehicle. For this reason, if there are people or bicycles within the blind area, the driver cannot see them, and the difference between the rear and rear wheels when making a left turn causes many accidents involving people or bicycles, which has become a social problem. .

FIG. 1 is a front view of a part of a conventional trunk, and FIG. 2 is a side view of the same.

As shown in these figures, in trunks, etc., the main outside mirror b is attached to the stay a that projects outside.
and an under mirror C are installed, but the field of view with the main outside mirror B is B shown in Figure 3, and the field of view with the under mirror C is C, which is required for safety in Area X notified by the Ministry of Transport. On the other hand, there is a blind area Y.

Furthermore, since the under mirror C has a small curvature of 100 to 120 R, the image produced by the under mirror C is small and the image distortion is large, resulting in poor visibility.

For this reason, mirror devices with good visibility that eliminate the above-mentioned blind area are being developed using mirror systems that combine various mirrors. When used, light may enter from sunlight, street lights, or other light sources located above the eyeglasses, and unnecessary light for driving may be reflected into the driver's cabin by the eyeglasses.

Such light is actually a nuisance, and if it enters the driver's eyepoint it can cause dazzling light, and even if it doesn't, it can reduce the contrast (and make it difficult to see clearly on the glasses). To bring about a situation.

This is a real problem in terms of safe driving.

Therefore, the present invention improves the drawbacks of the conventional device as described above and eliminates the blind area on the left side of the automobile, and also prevents unnecessary light from entering the driver's cabin through the eyeglasses, thereby preventing the image of the eyeglasses from entering the driver's cabin. It is an object of the present invention to provide a mirror device that makes it easy to visually recognize.

In order to achieve this object, the present invention is characterized in that a light intrusion prevention cover is provided near the eyeglasses to prevent unnecessary light from entering the driver's seat.

Some embodiments of the present invention will be described below with reference to the drawings.

4 and 5 show a first embodiment of the present invention.

FIG. 4 schematically shows the mirror system of this example.

In other words, this example is attached to the upper part of the car body 1 near the left corner of the driver's seat, and includes a convex mirror-shaped under mirror 2 that serves as an objective mirror that captures images of the outside world, and an image of this under mirror 2 that is transmitted to the driver. and glasses 3 for visual recognition.

In the present invention, a cover 4 for preventing unnecessary light from entering is placed near the eyeglasses 3, and the structure is as follows.
As shown in FIG.

That is, as shown in Figure 4, the under mirror (objective mirror)
2 are attached to the stay 21 so as to be able to adjust the angle downward in order to obtain a wide field of view, and in this case, the eyeglasses 3 are of course arranged facing upward accordingly.

Therefore, there is a risk that light from a light source above the eyeglasses 3, such as sunlight S, may be reflected by the eyeglasses 3 and enter the driver's seat or into the driver's eyes, causing glare. Therefore, the cover 4 is provided to prevent this.

The cover 4 is attached to a housing 5 for supporting eyeglasses 3 attached to the dashboard 11 of the vehicle body 1.

Alternatively, it may be attached directly to the dash board 11.

The cover 4 includes an objective mirror (under mirror) side opening 41 that allows the field of view reflected light from the under mirror 2 to be received by the eyeglasses 3, and an image reflected by the eyeglasses 3 inside the cover 4 to be transmitted to the driver. Eye point side listening port 4 for visual recognition
2 have been established.

In this way, the cover 4 covers the eye point EP of the driver's seat.
It is arranged so that the area other than the area where the under mirror can be seen through the eyeglasses 3 is enclosed with the minimum space.

In this way, for example, even if sunlight S enters as shown in the figure, it will be blocked by the cover 4, so the driver's seat or eye point)
P does not enter and does not interfere with driving.

The unnecessary light intrusion prevention cover 4 shown in FIG. 5 is provided with an antireflection protrusion 43 on its inner side.

This is because the sunlight 3, etc. reflected by the eyeglasses 3 enters the cover 4, and is further reflected again on the inner surface of the cover 4 as shown in the figure, and then passes through the eyeglasses 3 to the driver's eye point. E
In order to prevent the light from entering P, such a projection 43 is provided to absorb the light by scattering the light and prevent reflection.

In addition to providing the protrusion 43, the same effect can be obtained by providing a recess.

Alternatively, it is also effective to apply a black matte coating to absorb light.

The inner surface of the cover 4 may be curved, or the inner surface may be formed into a sawtooth shape as shown in FIG. 6A to make it less reflective, or may be roughened by adding a textured pattern as shown in the opening in the figure.

In addition, it can be made into a nest-like or lattice-like shape, or it can be made into a non-reflective material (・cloth (
It is also a good idea to paste light-absorbing cloth (such as broadcloth or other light-absorbing cloth) or wool.

An anti-reflection film such as a magnesium fluoride (MgF2) film may also be formed.

In FIG. 5, 31 is a mirror body that supports the eyeglasses 3;
2 is a pivot member that pivots this mirror body 31 to the housing 5.

6 in Fig. 4 is the main outside mirror.

2' is a mirror hood that acts as a cover to block sunlight S and other dazzling light, thereby further enhancing the effect of preventing unnecessary light from entering.

FIG. 7 shows a second embodiment of the present invention.

In this example, a cover glass 44 is provided in the opening 41 next to the objective mirror.

This prevents foreign matter, dust, etc. from entering, and by making the cover glass 44 a smoked lens, it is possible to reduce incident light from the sun and the like.

The transparent plate is not limited to glass, but may be made of other materials, and may be colored to provide various filter effects.

Furthermore, by setting the cover glass 44 at a specific angle, all necessary light enters the glass 44 at right angles, and unnecessary light such as sunlight that enters the cover glass 44 obliquely is totally reflected and canted here. You can also do that.

Alternatively, the cover glass 44 may be curved to provide a similar effect, or the surface may be coated with a non-reflective coating to absorb unnecessary light.

The inner surface of the unnecessary light intrusion prevention cover 4 of this example is configured to be curved in a concave shape, so that even if there is light reflected at this part, it will not go in the direction of the eyeglasses 3, and the cover 4 will be closed as shown in the figure. It is designed to go inside and attenuate as it is.

Furthermore, in this example, a remote control drive unit 33 is provided to facilitate the angle adjustment of the eyeglasses 30.

This is because the arrangement of the cover 4 and the like makes it difficult to adjust the angle of the eyeglasses 3, so such a remotely controllable drive unit 33 is provided.

Alternatively, the adjustment knob may be configured to be exposed to the outside so that the angle can be easily adjusted from inside the dash board 11.

Other components similar to those in the above example are given the same reference numerals.

FIG. 8 shows a third embodiment of the present invention.

In this example, a looper 71 made of a thin plate is provided in the opening 41 from the objective mirror of the cover 4, and a similar looper 72 is provided in the opening 42 next to the eye point.

The looper 71 next to the objective mirror has a thin plate surface facing the eyeglass 3.
and the objective mirror C under □ □ 2) so that it is parallel to the beam line connecting it.

On the other hand, the looper 72 next to the eye point is similarly installed so that its thin plate surface is parallel to the beam line connecting the eyeglasses 3 and the eye point (EP).

Furthermore, in order to minimize the shadow of the loopers 71 and 72, both openings 4 are
1.42 looper 71. Set the shadows of 72 to match.

A side cross section of the optical path in this case is shown in FIG.

By attaching the looper 71°T2 to the openings 41, 42 as described above, unnecessary light such as sunlight S is blocked as shown in the figure, and the intrusion of these rays can be reliably prevented.

Also, by adjusting the orientation of the loopers 71, 72, their shadows can be minimized as described above.

As the loopers 71 and 72, a grid-like looper shown in FIG. 10 can be used.

Alternatively, as shown in FIG. 11, the same effect can be obtained with a slit-shaped one.

In this way, looper 71.72=a? If provided, glasses 3
Since zero angle adjustment becomes more difficult, it is desirable to provide an adjustment knob 34 as shown in the figure or a remote control drive unit 33 as shown in the example of FIG.

In addition, by attaching marks to each thin plate of the loopers γ1 and 72 in FIG. 10, or by changing the color or adding a scale,
As shown in FIG. 12, it can be made to correspond to the 1 m square zone in the X area which is the visual recognition zone of this □ large stem.

In this way, the images visually recognized by the loopers 71 and 72 overlap, making it possible to clearly recognize the position of the object in the image.

In this way, by adjusting the installation width of the looper 7172 to a certain distance from the vehicle body 1, the positional distance of the image can be determined from the shadows of the looper 71 and 72.

In FIG. 12, B is the main mirror field of view, and 2 is the field of view of this system.

As described above, the automobile mirror device of the present invention includes an under mirror that is attached to the upper part of the driver's cab of a car near the corner opposite to the driver's seat, and that has a field of view of the front and left side of the vehicle body; The present invention is characterized in that it is equipped with eyeglasses that allow the driver to see the image of the mirror, and that a light intrusion prevention cover is provided near the eyeglasses to prevent unnecessary light from entering the driver's seat. As illustrated in Figure 12, the conventional blind area can be eliminated, and unnecessary light is reliably prevented from entering the driver's seat by the eyeglasses, making it easier to see the image of the eyeglasses. It has the following.

Note that, as a matter of course, the present invention is not limited to the illustrated example.

[Brief explanation of drawings]

FIG. 1 is a partial front view of a conventional example, FIG. 2 is a partial side view of the same, and FIG. 3 is an explanatory diagram of a blind area of the same example. FIG. 4 is a perspective view of the first embodiment of the present invention, and FIG. 5 is a side sectional view. FIG. 6B is a schematic cross-sectional view of the inner surface of a cover that can be used in the same example. FIG. 7 is a side sectional view of a second embodiment of the present invention. FIG. 8 is a side sectional view of a third embodiment of the present invention, FIG. 9 is an explanatory diagram of the optical path of the same example, and FIGS. 10 and 11 are perspective views of an example of a looper that can be used in the same example. . FIG. 12 is a diagram showing the visibility area and explaining the zone area. 1...Automobile (vehicle body), 2...Under mirror (objective mirror), 3...Eyeglasses, 4...
...Cover to prevent unnecessary light from entering.

Claims (1)

[Scope of utility model registration request] An under-mirror that is attached to the upper part of the driver's cab of an automobile near the corner opposite to the driver's seat and provides a field of vision to the front and left side of the vehicle body, and glasses that allow the driver to see the image in the under-mirror. 1. A mirror device for an automobile, characterized in that a light intrusion prevention cover for preventing unnecessary light from entering the driver's seat is disposed near the pair of glasses.