JPS59143734A - Nonglaring mirror for vehicle - Google Patents

Abstract

PURPOSE:To obtain a nonglaring mirror easy to produce and with a low cost by molding transparent resin in one body on the front surface of normal thin-plate glass to constitute a mirror main body. CONSTITUTION:A mirror main body M1 is incorporated in a mirror body 13 to constitute a nonglaring mirror 10 for vehicle. During the daytime when the mirror main body M1 is tilted forward, objects are observed through the reflection from a metal film 22. On the other hand, during the night time when the mirror main body M1 is tilted backward, objects are observed through reflected lights from the front surface of resin 20. Accordingly, the ratio of reflecting powers on the mirror main body M1 during the daytime and at night is 20:1, thereby external objects can be clearly observed during the daytime, but only specific lights, e.g., lights of cars running in the opposite direction, can be observed at night.

Description

[Detailed Description of the Invention] Technical Field of the Invention The present invention provides an anti-glare mirror for a vehicle, in particular, the objective tilt angle of the mirror body can be switched to two stages, so that objects can be seen in the living room and at night. Regarding the anti-Igen mirror for vehicle width.

Generally, this type of anti-glare mirror 10 installed inside a car to view external objects is mounted on the front side of a mirror tenon 13 which is pivoted to a mirror stay 11 with a support shaft 12, as shown in FIG. (set the objective inclination angle of the mirror body M, which is a flat plate with a pear-shaped cross section, to the angle η4 of the cargo J with the operation 1' of the knob 14)
While trying to see things with light ■, at night we can see things with reflected light W from the front side A, ignoring the light coming from the back side B of the main body M. I try to do that.

Prior Art Conventionally, the mirror main body MO of this type of anti-glare mirror used a glass prism l with a metal film coating 2 and a backing coating 3 applied to its back surface. Achieving high accuracy in flat finishing requires considerable effort, resulting in high costs. Many attempts have been made to replace this useless prism with resin, but none have been able to be put to practical use because sink marks occur on the surface during molding, making it impossible to obtain sufficient planar accuracy.

OBJECTS OF THE FIRST INVENTION The present invention uses resin to create a novel anti-glare mirror that can be put to practical use. That is, the inventor
Anti-glare mirrors for bells are used to clearly capture external objects between the layers, but at night, the exterior is dark and they are used to capture specific light, such as the lights of an oncoming vehicle. Reflective surfaces used for interlayer vision need to have a high-precision finished surface, but we focused on the fact that reflective surfaces used for night vision can be used even with low-precision finished surfaces, so we developed resin and rectangular cross sections. By combining thin sheets of glass, a highly accurate reflective surface can be obtained with the flat surface of the thin glass, while a low-precision reflective surface can be formed with a molded resin surface, which is sufficient for practical use as an anti-glare mirror. I found out that it can be provided.

The main point of the first invention is that the object inclination angle of the flat mirror body with a wedge-shaped cross section can be freely switched in two stages, and objects can be seen between the layers using reflected light from the back side of the mirror body. On the other hand, at night, objects can be seen using the anti-moon light from the front and side of the mirror body.As an anti-glare mirror for cars, the mirror body is made of transparent resin, and the mirror body is made of transparent resin. It is characterized in that the reflective surface on the back side of the mirror main body is formed of a metal plate provided on the flat surface of a thin plate glass having a rectangular cross section that is integrally provided with the mirror main body. Therefore, the anti-glare mirror according to the present invention has a flat mirror body with a wedge-shaped cross section formed by integrally molding transparent aluminium onto the front part of an ordinary thin plate glass, so that its manufacture is easy. It is easy, inexpensive, and can achieve the intended purpose.

Furthermore, in the case where the surface of the mirror main body made of resin is required to have the same surface strength as glass to prevent scratches as described above, the surface of the mirror main body is also made of thin glass. By molding the mirror with resin a few days ago, we were able to meet this demand and also make it possible to obtain a highly accurate reflective surface on the surface of the mirror body.

That is, in the present invention, the objective inclination angle of the flat mirror body with a wedge-shaped cross section can be switched in two stages, so that objects can be seen with the light reflected from the back side of the mirror body, while As an anti-glare mirror for a vehicle so that objects can be seen at night using the light reflected from the front side of the mirror body, the mirror body is formed of transparent resin, and the reflective surface on the back side of the mirror body is made of
The mirror body is integrally formed with a metal piece provided on a flat part of a thin plate glass having a rectangular cross section, while a reflective surface on the front side of the mirror body is integrally provided with the mirror body. It is characterized in that it is formed from a t3i1 plane of thin glass having a rectangular cross section.

Therefore, the anti-glare mirror according to the present invention has a flat mirror body with a wedge-shaped cross section, which is formed by integrally molding a transparent resin between a pair of front and rear ordinary thin glass sheets facing each other at a constant interval. Since it is constructed of a glass prism, it is easy to manufacture and inexpensive, and moreover, it is possible to obtain high-precision reflective surfaces similar to conventional glass prisms on both the front and rear surfaces of the mirror body.

EXAMPLES Hereinafter, the present invention will be described in detail with respect to examples shown in the drawings.

Figures 4 to 6 show mirror bodies Ml, M2, and M, respectively.
3. These mirror bodies Ml, M2. C43. M4 is the anti-glare mirror 10 for a vehicle according to the present invention, and as shown in FIG. 1, the mirror bodies Ml, M2 . M3. M
The object inclination angle of 4 is provided so as to be freely switchable into two stages by operating the lever knob 14, and the living room is built into one side so that objects can be viewed using the reflected light V from the rear side B.

Mirror main body M1 shown in FIGS. 4 to 6. M2゜M3.
M4 each consists of a transparent resin 20 and one or two glass plates 21 and 26 having a rectangular cross section, and examples of each will be described below.

The main body of the mirror shown in FIG. 3 includes a thin plate glass 21 with a thickness of 1 to 0.8 mm and a predetermined size, for example, 60XI 50vtm.
For example, a metal film coat 22 made of , Ag, Cr, etc. and having a film thickness of 5'00'A is provided by sputtering or the like,
After roughly applying a backing coating 23 to the back surface of the metal film coat, the thin plate is injected with a transparent resin 20 such as acrylic, polycarbonate, or nylon on the front surface of the lath 21, and the resin 20 and the thin glass 21 are integrally formed. It is formed as a flat plate-shaped mirror body M1 of, for example, 60 x 15 Qi + v, with an overall wedge-shaped cross section, for example, a taper of 3 degrees, a base of 3 mW, a top of 8 degrees, and a length of 60 mm. The portion 25 is made to overhang the end surfaces of the thin glass, metal coating, and backing coating to provide a liquid-tight seal and to prevent the resin 20 from peeling off. The thus formed mirror body M1 is assembled into the mirror body 13 as shown in FIG.
0 is configured so that when the mirror body M1 is tilted forward in the living room, objects can be seen using the reflected light from the metal @22 (reflectance of about 80%), while at night when the mirror body M1 is tilted backward, the resin 20 Allows objects to be seen using reflected light from the front (reflectance of approximately 4%). Therefore, since the reflectance ratio of the starry night on the main body Ml of the mirror is about 20:1, it is possible to perceive external objects as light, but at night, only certain lights, such as the lights of oncoming vehicles, can be detected. It is possible to capture the

The mirror main body M2 shown in FIG. 4 is different from the one shown in FIG. The metal film 22 is sandwiched between the thin glass 21 and the resin 20, and the back end 25 of the resin 20 is overhanging the end surface of the thin glass 21 to form the metal film. By liquid-tightly sealing 22, the backing coating shown in FIG. 3 can be made unnecessary. This Mira body M
The anti-glare mirror 10 incorporating the mirror 2 uses the front surfaces of the metal film 22 and the resin 20 as reflective surfaces, respectively, as shown in FIG.

"The mirror main body M3 shown in FIG. 5 is different from the one shown in FIG. The flat glass 26 is made of Nishida, and has a thickness of, for example, 1
~0.8 my and 60 x 15 Q my of the same size and shape as the above thin glass 21 may be used, and the resin 20 is applied to the front surface of the thin glass 21 whose back surface is coated with a metal film 22 and a backing coating 23. Fill the space between the back of the flat glass 26 arranged corresponding to 1) and 1) so that the whole has a wedge-shaped cross section, e.g.
m, upper side Bmytt, length 60vm, 60
XI Form a main body M3 of 50 carbon dioxide, and add 20
The front edge 24 of the front side edge 24 overhangs the edge of the flat glass 26 to prevent the resin 20 from peeling off.

The anti-glare mirror 10 incorporating this mirror body M3 utilizes the metal film 22 and the front surface of the flat glass 26 as reflective surfaces, respectively.

The mirror body M4 shown in FIG. 6 is different from the one shown in FIG. 4 in that a flat glass 26 is further provided on the front surface of the resin 20 so that the entire front surface of the resin 20 is covered and protected by the flat glass 26. For example, the flat glass 26 has a thickness l ~
Q, 60X15 (3 nm) (the same size and shape as the thin glass 21 of lffl may be used, and the resin 20 is a metal film coat 2 provided on the front surface of the thin glass 21.
2 and the back side of the flat glass 26 arranged corresponding to the metal film 22, the overall wedge-shaped cross section, for example, a taper of 3 degrees, a bottom side of 3 mm, a top side of 8 m shoulder, and a length of 60 mm. , 60X15 (1m mirror body).The anti-glare mirror 10 incorporating this mirror body M4 has a metal model 1 and a flat glass front surface, respectively, similar to the one shown in Figure 5. It is used as a reflective surface.

As detailed in the above embodiments, the present invention has a wedge shape.
The oblique angle of the objective of the mirror body, which is a flat plate with a mirror body, can be freely switched to two levels, so that objects can be seen with the light reflected from the back side of the mirror body, while at night the mirror body is As an anti-discharge mirror for a car that allows objects to be seen using reflected light from the front side of the mirror, the mirror body is made of transparent resin, and the reflective surface on the back side of the mirror body is made of a transparent resin. It is characterized by being formed of a metal film provided on the flat part of a thin plate glass with a rectangular cross section that is integrally provided with the main body, and if necessary, the reflective surface on the front side of the mirror main body can be It is characterized by being formed from the front surface of a thin plate glass with a rectangular cross section that is integrally formed with the main body, so that the intended purpose can be achieved with a simple structure. It is.

[Brief explanation of drawings]

Fig. 1 is a schematic cross-sectional view of an anti-glare mirror for opening a car, Fig. 2 is a cross-sectional view of a conventional mirror main body, and Figs. 3 to 6 are a cross-sectional view of a mirror main body according to the present invention. FIG. M, Ivlo, Ml, M2, M3, M4・
...Mira body, 20...Resin, 21.
... Thin glass, 22 ... Metal film, 23.
... Painting, 26 ... Flat glass. Patent applicant Tokai Rika Denki Seisakuj's Co., Ltd.
FR Daisokujin - 1LF Konshi Aoyama Fuku and 2 other procedural amendments (,e) April 26, 1980 Director General of the Patent Office Tono 1 Indication of the case 1988 Patent Application No. 17797 2 Name of the invention For vehicles Anti-glare mirror 3, relationship with the case of the person making the amendment Patent Applicant Address: Jin 11-cho, Tsukiha-gun, Aichi Prefecture, Bold: I, 11, No, 1111-4, Agent 5: Date of amendment order: Spontaneous amendment Claims [( 1) The objective inclination angle of the flat mirror body with a @-shaped cross section can be switched in two stages, so that objects can be seen with the light reflected from the back side of the mirror body during the day, while at night This is an anti-glare mirror for a vehicle that allows objects to be seen using the reflected light from the front ill of the mirror body, and the mirror body is made of transparent resin, and the reflective surface on the back side of the mirror body is An anti-glare mirror for the width of a vehicle, characterized in that it is formed of a metal film provided on a flat part of a mirror having a rectangular cross section that is integrally provided with the mirror body.

Claims (2)

[Claims] (1) The objective inclination angle of the mirror body, which is a flat plate with a wedge-shaped cross section, is switched in two stages so that objects can be seen in the living room using reflected light from the back side of the mirror body, while at night is an anti-glare mirror for a vehicle that allows objects to be seen by the light reflected from the front side of the mirror body, the mirror body is made of transparent resin, and the reflective surface on the back side of the mirror body is made of An anti-glare mirror for a vehicle, characterized in that it is formed of a metal film provided on a flat part of a thin plate glass having a rectangular cross section that is provided integrally with the mirror body. (2) The objective inclination angle of the mirror body, which is a flat plate with a wedge-shaped cross section, can be switched in two stages, so that objects can be seen with reflected light from the back side of the mirror body during the first interval. This is an anti-glare mirror for a vehicle that allows objects to be seen at night using the light reflected from the front side of the mirror body.The mirror body is made of transparent resin, and the reflective surface on the back side of the mirror body is made of transparent resin. , is formed of a metal film provided on a flat part of a thin plate glass having a rectangular cross section, which is connected to the main body of the mirror.
An anti-glare mirror for a vehicle, characterized in that the reflective surface on the front side is formed by the front surface of a thin plate glass having a rectangular cross section and integrally provided with the mirror body.