JP2000159014A - Inner mirror - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inner mirror capable of reducing the man-hours for the assembling process. SOLUTION: An inner mirror is configured so that a liquid crystal monitor 3 is installed on the rear surface of a mirror glass 2, wherein the monitor 3 is fixed to the rear surface of the mirror glass 2 by pressing with a resilient force. That is, there is no need to use screws for fixing the liquid crystal monitor 3, which can be installed in a short time, so that it is possible to reduce the man-hours for the assembling process.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner mirror which is installed, for example, near a windshield in an automobile and has a monitor inside.

[0002]

2. Description of the Related Art As an inner mirror of this type, a liquid crystal monitor (monitor) is provided on the back side of a mirror glass for rear view, and for example, an image projected by a CCD camera provided at the rear of a vehicle is displayed on the liquid crystal monitor. Is known. In general, the liquid crystal monitor is fixed with screws to a housing that covers the side and rear of the mirror glass.

[0003]

For this reason, in the conventional inner mirror, the liquid crystal monitor must be fixed with screws, so that there is a problem that the number of assembling steps is increased.

The present invention has been made in view of the above circumstances, and has as its object to provide an inner mirror that can reduce the number of assembly steps.

[0005]

In order to solve the above-mentioned problems, according to the first aspect of the present invention, there is provided an inner mirror in which a monitor (3) is arranged on the back side of a mirror glass (2), wherein the monitor (3) is The mirror glass (2) is fixed by being pressed against the back surface of the mirror glass (2) with an elastic force.

According to a second aspect of the present invention, in the first aspect of the invention, the monitor (3) is fixed by being pressed against the back surface of the mirror glass (2) by the elastic force of the foamed resin body (4). It is characterized by being.

According to a third aspect of the present invention, in the second aspect, the foamed resin body (4) is a mirror glass (2).
Are positioned by the ribs (50) of the housing (5) that holds the housing.

According to a fourth aspect of the present invention, in the third aspect of the present invention, positioning ribs (54a, 54b, 54) for positioning the monitor (3) on a predetermined portion of the mirror glass (2) are provided on the housing (5). 54c, 54d) are provided.

[0009] The first aspect of the present invention is configured as described above.
In the described invention, the monitor (3) is configured to be fixed to the back surface of the mirror glass (2) by pressing it with an elastic force. There is no need to use it, and the mounting of the monitor (3) can be completed in a short time. Therefore, the number of assembly steps can be reduced.

Further, since the monitor (3) comes into close contact with the back surface of the mirror glass (2), the monitor (3)
Does not leak from between the monitor (3) and the mirror glass (2). Further, since the monitor (3) and the mirror glass (2) are always in close contact with each other, abnormal noise due to vibration can be completely prevented.

According to the second aspect of the present invention, the monitor (3) is fixed by pressing the monitor (3) against the back surface of the mirror glass (2) by the elastic force of the foamed resin body (4). , A wide range of the monitor (3) can be pressed with a constant surface pressure. Therefore, monitor (3)
Can be stably held. In addition, monitor (3)
Can be pressed over a wide range, so that the surface pressure acting on the monitor (3) and the like can be kept low. Therefore, the durability of the monitor (3) and the like can be improved.

According to the third aspect of the present invention, since the foamed resin body (4) is positioned by the rib (50) of the housing (5), the foamed resin body (4) is prevented from being displaced by vibration or the like. be able to. Moreover, the foamed resin body (4)
Since it is not necessary to provide another component for positioning, the number of components and the cost can be reduced.

According to the fourth aspect of the present invention, the monitor (3) can be securely held at a predetermined portion of the mirror glass (2) by the positioning ribs (54a, 54b, 54c, 54d).

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. The inner mirror 1 shown in this embodiment has a configuration in which a liquid crystal monitor (monitor) 3 is disposed on the back side of a mirror glass 2 as shown in FIGS.
Is fixed to the back surface by pressing it with an elastic force. That is, the liquid crystal monitor 3 is fixed by being elastically pressed against the back surface of the mirror glass 2 by the sponge body (foam resin body) 4 having elasticity. Further, the sponge body 4 is positioned by a rib 50 of the housing 5 that holds the mirror glass 2.

Hereinafter, the above configuration will be described in more detail. That is, as shown in FIGS. 1 to 4, the housing 5 covers the entire side and rear of the mirror glass 2 to completely prevent light from shining on the back surface of the mirror glass 2. The mirror glass 2 and the housing 5
Is completely sealed by the rim 6. Therefore, external light is prevented from directly shining on the back surface of the mirror glass 2.

The mirror glass 2 is composed of a kind of half mirror, and does not shine from the back side in a normal use state. Therefore, the mirror glass 2 is used as a normal rear-viewing mirror that reflects only light from the front side. To work. However, when the liquid crystal monitor 3 is displayed, the light passes through the mirror glass 2, so that the display on the liquid crystal monitor 3 can be viewed through the mirror glass 2.

As shown in FIG. 4, the housing 5 is formed integrally with a resin, and has a plurality of ribs 50 and 5 on its back surface 5a and side surface 5b. One boss 56 is provided integrally. The ribs 50 are provided at a first rib 51 disposed at a central portion in the width direction of the housing 5, a plurality of second ribs 52 disposed around the first rib 51, and a plurality of ribs are disposed at a peripheral portion. It is divided into a third rib 53 and a plurality of fourth ribs 54 for positioning the liquid crystal monitor 3.

The first rib 51 and the boss 56 are reinforcements for fixing to a stay (not shown) provided in the vehicle, and each boss 56 is screwed with a screw (not shown). Hole 56a is formed.

The second rib 52 includes a horizontal rib 52a extending in parallel in the horizontal direction from the first rib 51, and a horizontal rib 52a.
Vertical ribs 5 extending in the vertical direction so as to connect the tips of
2b and a boss 5 located at the base end of the lower lateral rib 52a.
A lower vertical rib 52c extending vertically downward from the boss 56;
And 52d of oblique ribs extending obliquely downward from the front.
The second rib 52 also reinforces the housing 5.

The third rib 53 is formed so as to protrude inward from the side surface 5b by a predetermined amount and to protrude from the back surface 5a to the front surface by a predetermined amount. These third ribs 53
Also reinforce the housing 5. However, some of the third ribs 53 also serve as the fourth ribs 54.

The fourth rib 54 includes a plurality of upper positioning ribs 54a also serving as the third rib 53, and the third rib 5
A plurality of lower positioning ribs 54b also serving as a third positioning rib 54c; a left positioning rib 54c protruding from the first rib 51 and the lower vertical rib 52c toward the liquid crystal monitor 3; It has a right positioning rib 54d that protrudes.

Upper positioning rib 54a, lower positioning rib 5
4b and the left positioning rib 54c are formed with a guide side 55a for guiding the upper side, lower side and left side of the liquid crystal monitor 3, and a guide bottom 55b for guiding the bottom of the liquid crystal monitor 3 respectively. Have been. The guide side portion 55a and the guide bottom portion 55b are also formed on the lower portion of the vertical rib 52b.

The right positioning rib 54d is, as shown in FIGS. 4 and 5 (a), a parallel rib 54e arranged parallel to the side surface of the liquid crystal monitor 3, and a vertical rib 54e. And a vertical rib 54f protruding vertically on the liquid crystal monitor 3 side. The upper end of each vertical rib 54f is the above-described guide bottom 55b, and
The surface facing the liquid crystal monitor 3 above the guide bottom 55b in 4e is the guide side 55a described above. The right positioning rib 54d does not have one vertical rib 54f at the center of the parallel rib 54e as shown in FIG.
Can be prevented.

Each of the guide side portions 55a is formed in a tapered shape so as to gradually move away from the side surface of the liquid crystal monitor 3 toward the front surface side. That is, each guide side portion 55a connects the liquid crystal monitor 3 to the housing 5
It is configured so that it can be easily stored inside. In addition, each guide side portion 55a reliably positions the liquid crystal monitor 3 housed in the housing 5 at a predetermined position on the mirror glass 2. Further, since the bottom surface of the liquid crystal monitor 3 is pressed by the sponge body 4, each guide bottom 55 b is slightly separated from the bottom surface of the liquid crystal monitor 3. However, the guide bottom 55b
Is a stopper when the liquid crystal monitor 3 is pushed in during assembly.

As shown in FIGS. 1 to 4, the sponge body 4 is made of a foamed resin having elasticity such as urethane foam. A necessary and sufficient elastic force is applied to the bottom surface of the third member. Further, as shown in FIG. 4, the sponge body 4 is divided into a part located on the left side of the vertical rib 52b and a part located on the right side of the vertical rib 52b. The sponge body 4 located on the left side is positioned in a range surrounded by the first rib 51, the upper and lower horizontal ribs 52a, 52a, and the vertical rib 52b. Further, the sponge body 4 located on the right side is positioned in a range surrounded by the vertical rib 52b, the upper positioning rib 54a located on the right side of the vertical rib 52b, the lower positioning rib 54b, and the right positioning rib 54d. It has become.

The mirror glass 2 is fixed to the housing 1 by fitting the rim 6 into the housing 5. At this time, the liquid crystal monitor 3 is pushed inward to compress and deform the sponge body 4 by a predetermined amount. I have.

The inner mirror 1 constructed as described above
In, the liquid crystal monitor 3 is fixed to the rear surface of the mirror glass 2 by pressing the liquid crystal monitor 3 with an elastic force so that the liquid crystal monitor 3 is sandwiched between the housing 5 and the mirror glass 2. There is no need to fix the liquid crystal monitor 3. Therefore, since the liquid crystal monitor 3 can be attached in a short time, the number of assembly steps can be reduced.

Moreover, since the liquid crystal monitor 3 is always in close contact with the back surface of the mirror glass 2, light from the liquid crystal monitor 3 does not leak from between the liquid crystal monitor 3 and the mirror glass 2. Therefore, even when the liquid crystal monitor 3 is displayed, the portion of the mirror glass 2 other than the liquid crystal monitor 3 functions as a rear view mirror. further,
Since the liquid crystal monitor 3 and the mirror glass 2 are always in close contact with each other, it is possible to completely prevent the vibration noise caused by the separation and contact of these members.

Further, since the liquid crystal monitor 3 is elastically pressed by the sponge member 4, a wide area of the liquid crystal monitor 3 can be pressed with a constant surface pressure. Therefore, the liquid crystal monitor 3 can be stably held. In addition, since a wide range of the liquid crystal monitor 3 can be pressed, the surface pressure acting on the liquid crystal monitor 3, the housing 5, and the like can be reduced. Therefore, the durability of the liquid crystal monitor 3, the housing 5, and the like can be improved.

Further, a portion surrounded by a rib 50 of the housing 5, for example, a first rib 51, upper and lower horizontal ribs 52a, 52a, and a vertical rib 52b, a vertical rib 52b, an upper positioning rib 54a, Since the sponge body 4 can be positioned at the portion surrounded by the lower positioning rib 54b and the right positioning rib 54d, the sponge body 4 can be reliably held at a predetermined position. That is, it is possible to prevent the sponge body 4 from shifting due to vibration or the like. In addition, the rib 50 is formed integrally with the housing 5,
Since it is not necessary to provide another component for positioning the sponge body 4, the number of components and the cost can be reduced.

The upper and lower positioning ribs 54a, 54b, 54c and 54d allow the liquid crystal monitor 3 to be moved in the horizontal and vertical directions.
That is, since the liquid crystal monitor 3 can be positioned at a predetermined position in the horizontal direction, the liquid crystal monitor 3 can be reliably held at a predetermined position on the mirror glass 2.

In the above embodiment, the liquid crystal monitor 3 is elastically pressed by the sponge member 4. However, an elastic member such as a coil spring or a plate spring is provided in the housing, and this elastic member is used. The liquid crystal monitor 3 may be configured to be pressed. In that case, connect the spring to the housing 5
May be integrally formed.

Further, the mirror glass 2 may be configured so that a portion corresponding to the display unit of the liquid crystal monitor 3 is opened. In this case, a normal mirror other than a half mirror can be used as the mirror glass 2.

Further, an example has been shown in which a liquid crystal monitor 3 serving as an image monitor for projecting the rear of the vehicle is arranged inside the mirror glass 2 as a monitor. Such as a monitor that alerts you of proximity to an object, a monitor that indicates that you are in reverse gear, or a monitor that is completely unrelated to such reverse running, such as a monitor for engine oil level warning or a half-door warning monitor. A monitor that displays a natural image may be installed in the inner mirror. In this case, it is preferable that the monitor is usually in the mirror glass 2 and its display is not visible, and is turned on to display an image image only when an abnormality or the like occurs. Also,
A simple light may be used instead of the image image, and the light may be turned on only when an abnormality or the like occurs.

[0035]

According to the first aspect of the present invention, the monitor (3) is configured to be fixed to the back surface of the mirror glass (2) by being pressed against the back surface of the mirror glass (2) by an elastic force. There is no need to use screws for fixing 3), and the mounting of the monitor (3) can be completed in a short time. Therefore, the number of assembly steps can be reduced.

Further, since the monitor (3) comes into close contact with the back surface of the mirror glass (2), the monitor (3)
Does not leak from between the monitor (3) and the mirror glass (2). Further, since the monitor (3) and the mirror glass (2) are always in close contact with each other, abnormal noise due to vibration can be completely prevented.

According to the second aspect of the present invention, the monitor (3) is fixed by pressing against the back surface of the mirror glass (2) by the elastic force of the foamed resin body (4). Thus, a wide range of the monitor (3) can be pressed with a constant surface pressure. Therefore, monitor (3)
Can be stably held. In addition, monitor (3)
Can be pressed over a wide range, so that the surface pressure acting on the monitor (3) and the like can be kept low. Therefore, the durability of the monitor (3) and the like can be improved.

According to the third aspect of the invention, since the foamed resin body (4) is positioned by the rib (50) of the housing (5), the foamed resin body (4) is prevented from being displaced by vibration or the like. can do. Moreover, since it is not necessary to provide another component for positioning the foamed resin body (4),
The number of parts and the cost can be reduced.

According to the fourth aspect of the present invention, the monitor (3) can be securely held at a predetermined portion of the mirror glass (2) by the positioning ribs (54a, 54b, 54c, 54d).

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an inner mirror shown as one embodiment of the present invention, which is a cross-sectional view taken along line II of FIG.

FIG. 2 is a cross-sectional view of the inner mirror, taken along the line II in FIG.
It is sectional drawing which follows the II line.

FIG. 3 is a sectional view of the inner mirror, taken along the line II in FIG.
It is sectional drawing which follows the I-III line.

FIG. 4 is a front view showing a housing of the inner mirror.

FIG. 5 is a plan view showing a right positioning rib in a housing of the inner mirror.

[Explanation of symbols]

 Reference Signs List 1 inner mirror 2 mirror glass 3 liquid crystal monitor (monitor) 4 sponge body (foam resin body) 5 housing 50 rib 54a upper positioning rib (positioning rib) 54b lower positioning rib (positioning rib) 54c left positioning rib (positioning rib) 54d right Positioning rib (positioning rib)

Claims (4)

[Claims] 1. An inner mirror in which a monitor (3) is arranged on the back side of a mirror glass (2), wherein the monitor (3) is fixed by being pressed against the back surface of the mirror glass (2) by an elastic force. An inner mirror characterized by being made. 2. The inner part according to claim 1, wherein the monitor is fixed by being pressed against the back surface of the mirror glass by an elastic force of the foamed resin body. mirror. 3. The inner mirror according to claim 2, wherein the foamed resin body (4) is positioned by a rib (50) of a housing (5) holding the mirror glass (2). 4. The housing (5) is provided with positioning ribs (54a, 54b, 54c, 54d) for positioning the monitor (3) at a predetermined position on the mirror glass (2). The inner mirror according to claim 3.