JP2599410Y2 - Sun visor for anti-glare of automobile - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a liquid crystal light control sheet structure.
LCD dimming related to anti-glare sun visor for automobiles
The present invention relates to an anti-glare sun visor for an automobile having a dimming function by changing an incident light transmittance by turning on / off a voltage applied to a seat structure .

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, a light control glass 103 in which a liquid crystal light control sheet 100 in which a liquid crystal substance is dispersed and sealed in a resin sheet is sealed between glasses 102 via an intermediate film layer 101 is known. Have been.

[0003]

In the prior art, there is a problem that the existing glass cannot be provided with a dimming function because it is configured to be sealed in a laminated glass. Moreover, heavy for constitution with laminated glass, that has a problem in that mounted on the set or the resin frame to the resin window is not easy.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to use a liquid crystal light control sheet structure to drive a vehicle while driving a car.
Anti-glare sun visor capable of anti-glare in automobiles
It is intended to provide .

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a sun visor 10 for an antiglare of an automobile.
The sun visor 10 includes a liquid crystal light control sheet 2 and a flexible transparent resin film bonded to both front and back surfaces of the liquid crystal light control sheet 2 via adhesives 3 so as to sandwich the liquid crystal light control sheet 2. 4 and 4, a liquid crystal light control sheet structure 1 having a horizontally long rectangular shape is formed, and the periphery of the liquid crystal light control sheet structure 1 is surrounded.
The frame 11 made of resin is fitted in the
1 attached to one side and provided at the end of the support rod 11
A mounting member 13 attached to a part of the vehicle body on the indoor side,
And a wiring 14 for supplying power to the liquid crystal light control sheet structure 1
It is characterized by having.

[0006]

[Effect] The sun visor for anti-glare of a car is made of a rectangular liquid crystal tone.
Light sheet structure 1, frame 11 surrounding it, frame 11 supporting rod
The mounting member 13 supported on the vehicle body 12 and attached to the vehicle body is a support rod.
12 so that the windshield inside the vehicle
The liquid crystal tone can be arranged via the wiring 14.
On / off control of power supply to the light sheet structure 1
Lowering the transmittance of the liquid crystal light control sheet structure 1 to prevent sunlight
High transmittance in dark places such as at night, in tunnels, etc.
Visibility can be secured.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows an antiglare sunby of an automobile according to the present invention.
FIG. 2 is a cross-sectional view of a liquid crystal light control sheet structure,
FIG. 3 shows a liquid crystal light control sheet structure as a backup material.
Explanatory drawing for simple mounting on a lath, Fig. 4 is a liquid crystal light control
HanHisashi Hisashi manner in glass as a backup material sheet structure
It is sectional drawing at the time of attaching to.

FIG . 1 is a perspective view of an antiglare sun visor 1 of an automobile.
FIG. As clearly shown in FIG. 1, a horizontally long rectangular liquid crystal tone
The light sheet structure 1 and the periphery of the liquid crystal light control sheet structure 1
A resin fitted around the liquid crystal light control sheet structure 1
And a frame 11 made of. One side of the frame 11, specifically, FIG.
As shown in the figure, it was inserted into the mounting hole formed on the upper side of the frame 11.
Metal support rod 12, bent above metal support rod 12
The vehicle body-side mounting member 13 is fitted to the end.
The sun visor 10 for anti-glare of a vehicle includes a vehicle body side mounting member 1.
3 and the front pillars and
It is attached to the ceiling front end of the roof. 14 is a liquid
The liquid crystal light control sheet 2 constituting the crystal light control sheet structure 1 is supplied.
The wiring 14 is a wire for supplying electricity.
It is led out from the vicinity of the lead-out portion of the support rod 12.

As shown in FIG. 2 , the liquid crystal light control sheet structure 1 includes a liquid crystal light control sheet 2, adhesive resin layers 3 and 3 on both sides of the liquid crystal light control sheet 2, and an adhesive resin layer 3 ,
The liquid crystal light control sheet 2 has flexible transparent resin films 4 and 4 which are adhered so as to sandwich both front and back surfaces of the liquid crystal light control sheet 2 via the support 3. As the adhesive resins 3, 3, polyvinyl butyrate (PVB) or ethylene vinyl acetate (EVA) is used. As the transparent resin films 4, 4, a transparent resin film such as polyethylene terephthalate (PET) having a thickness of 100 to 200 μm is used. Was used.

When a colored film is used for one or both of the transparent resin films 4, a light control sheet having a color which is preferable for anti-glare of an automobile is obtained.

The liquid crystal light control sheet structure 1 is provided with a sun visor.
If simply attach the 10 <br/> existing glass as backup material of the liquid crystal light control sheet structure 1, the same shape as the liquid crystal light control sheet structure 1 of the horizontally oblong as shown in FIG. 3
A transparent adhesive 6 such as a double-sided tape around a transparent glass 5
Can be bonded using

[0012] In addition, Sanbai the liquid crystal light adjusting sheet structure 1
Backup material for the liquid crystal light control sheet structure 1 of the
Figure 4 shows a semi-permanent installation on existing glass.
The liquid crystal light control sheet structure 1 and the transparent glass 7
Alternatively, the entire surface between the transparent resin plate 8 and the transparent resin plate 8 can be formed of an adhesive resin layer 9 such as PVB or EVA.

Since the transparent resin film 4 made of PET or the like is highly flexible, the liquid crystal light control sheet structure 1 can be entirely used not only for a two-dimensional glass but also for a three-dimensional glass or resin window having a large curvature. As a result, the adhesive can be adhered to.

In addition, the liquid crystal light control sheet 2 has an electrode portion (not shown) for power supply, and care must be taken when handling the liquid crystal light control sheet 2 alone. However, the liquid crystal light control sheet 2 is sandwiched between the transparent resin films 4 to provide an anti-glare sun visor for an automobile.
-10, and lead out the wiring 14 along one side of the frame 11
This also facilitates electrical handling.

Constructing an antiglare sun visor 10 for an automobile
By turning on / off the voltage applied to the liquid crystal light control sheet 2 of the liquid crystal light control sheet structure 1 , the transmittance can be changed when necessary to secure a clear field of view. Immediately
In a bright daytime, the transmittance of the liquid crystal light control sheet structure 1 is low.
To prevent sunlight, and in dark places such as at night or in tunnels
The visibility can be secured by increasing the transmittance.

The power supply of the sun visor 10 for anti-glare to the liquid crystal light control sheet 2 is controlled by an optical sensor such as a photo sensor.
By doing so, it is possible to automatically reduce the transmittance during a bright day to prevent sunlight, and to increase the transmittance at night or in a dark place such as in a tunnel to secure a view.

[0017]

According to the present invention as it has been described above devised], self
An anti-glare sun visor 10 for a vehicle, the sun visor
Reference numeral 10 denotes a liquid crystal light control sheet 2 and a flexible transparent resin film 4 bonded to both sides of the liquid crystal light control sheet 2 via adhesives 3 so as to sandwich the liquid crystal light control sheet 2. , form a liquid crystal light control sheet structure 1 of the oblong rectangular shape with 4
And a tree surrounding the liquid crystal light control sheet structure 1.
The frame 11 made of oil is fitted, and the support rod 12 is attached to one side of the frame 11.
Attachment, interior of the car body provided at the end of the support rod 11
A mounting member 13 attached to a part of the liquid,
A wiring 14 for supplying power to the crystal light control sheet structure 1
I made it. Therefore, the anti-glare sun visor 10 of the vehicle is constructed.
To the liquid crystal light control sheet 2 of the liquid crystal light control sheet structure 1 to be formed.
Transparent when needed by turning on / off applied voltage
By changing the rate, a clear view can be secured.
That is, during a bright day, the transmittance of the liquid crystal light control sheet structure 1 is reduced.
Low to prevent solar radiation, in dark places such as at night or in tunnels
Can increase the transmittance to secure the field of view. Special
First, supply of the sun visor 10 for anti-glare to the liquid crystal light control sheet 2
By controlling electricity with an optical sensor such as a photo sensor,
Automatically lowers the transmission during bright days to prevent sunshine,
Increase visibility in dark places, such as between spaces or in tunnels, to increase visibility
Can be secured. In addition, sun visor for anti-glare of automobile
B. The liquid crystal light control sheet 2 and the liquid crystal light control sheet 2
The liquid crystal light control sheet 2 is adhered to both front and back surfaces with adhesives 3
Flexible transparent resin film bonded to sandwich
4 and 4, so it is easy to mount it on the resin frame 11.
Easy to manufacture as sun visor for car anti-glare
It is preferable as a sun visor because it is light and lightweight.

[Brief description of the drawings]

FIG. 1 is a perspective view of an antiglare sun visor according to the present invention;
View

FIG. 2 is a cross-sectional view of a liquid crystal light control sheet structure.

FIG. 3 uses a liquid crystal light control sheet structure as a backup material.
Illustration for simple installation on glass

FIG. 4 uses a liquid crystal light control sheet structure as a backup material.
Sectional view when attached semi-permanently to glass

FIG. 5 is a cross-sectional view of the prior art.

[Explanation of symbols]

1: liquid crystal light control sheet structure, 2: liquid crystal light control sheet, 3:
Adhesive resin layer, 4 ... Transparent resin film, 10 ... Automotive protection
Sun visor for glare .

Claims (1)

(57) [Scope of request for utility model registration] 1. An anti-glare sun visor 10 for an automobile.
In addition, the sun visor 10 has the liquid crystal light control sheet 2 and the flexibility adhered to both front and back surfaces of the liquid crystal light control sheet 2 via the adhesives 3 so as to sandwich the liquid crystal light control sheet 2. A horizontally long rectangular liquid crystal light control sheet structure 1 is formed by the transparent resin films 4 and 4, and the periphery of the liquid crystal light control sheet structure 1 is formed.
A resin frame 11 is fitted so as to surround the surroundings, and the support rod 12 is
Attached to one side of the frame 11 and provided at an end of the support rod 11
The mounting member 13 to be attached to a part of the interior side of the vehicle body is
Wiring provided for supplying power to the liquid crystal light control sheet structure 1
14. An anti-glare sun visor for a vehicle, comprising:
The