JP2004082872A - Vehicle equipped with high transmittance glass and high reflecting interior trim - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle equipped with high transmittance glass and a high reflecting interior trim, suppressing deterioration of an interior environment due to heat radiation from glass absorbing light such as solar radiation and accumulating heat during parking that cannot use the same means (cooling glass by traveling wind) as at the time of traveling, and preventing impairment of a forcibly cooling effect of the glass by the traveling window even during traveling. <P>SOLUTION: In the vehicle equipped with the high transmittance glass and the high reflecting interior, window glass with solar radiation transmittance of not less than 60%, and an interior skin partially having a part with solar radiation total reflection factor of not less than 40% are provided. <P>COPYRIGHT: (C)2004,JPO

Description

【００６７】
次に、実施例及び比較例で得られた車両の評価方法は以下の通りである。
＜試験方法１＞
車両を入れることができる大きさで、その内部を一定温湿度に維持でき、人工太陽灯による日射相当の光を車両のエクステリアに照射でき、一定風速の風を一方向から供給できる人工気候室に車両を入れ、下記条件下に２時間置いた。これにより炎天下放置の状態を模擬した。
（車の置かれる条件）
温度：３５℃
湿度：７０％
日射：１０００Ｗ／ｍ^２（ルーフ上にて日射計で計測）、照射は車の真上から実施
風：０．１ｍ／ｓ（車両の前から供給）
このような条件で放置する車両に予め、ドライバー席の乗員頭部相当位置に熱電対を設置して、２時間放置後の温度を測定した。
【００６８】
結果を表２に示す。本発明の実施例の車両では明らかに温度が比較例車両よりも低くなっている。比較例の７０℃レベルは車に乗り込んだ直後の人間が我慢できないレベルの温度であり、実施例の６０℃から４０℃のレベルは乗り込んでから最大３０秒まで許容されるレベルである。

【図面の簡単な説明】
【図１】実施の形態１の構成を表す概略図である。
【図２】実施の形態１における日射反射率の高い内装を適用する部位を表す図である。
【図３】実施の形態２の構成を表す概略図である。
【図４】実施の形態２におけるシェードの適用部位を表す図である。
【符号の説明】
１　　インストルメント
２　　リアパーセルシェルフ
３　　シート
４　　ドアトリム
５　　ヘッドライニング
６　　ピラーガーニッシュ
１１　　シェード
１２　　サイドガラス
１３　　リアガラス[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vehicle that can provide a comfortable thermal environment by reducing the heat sensation in summer, and in particular, a vehicle that has a high transmittance glass and a high reflectance interior skin for the purpose of reducing the indoor temperature during parking under hot weather. About.
[0002]
[Prior art]
As is well known, the interior of a car placed in a hot sun environment becomes extremely hot. In the measurement example of the summer environment in Japan, in the case of parking, the indoor air temperature reaches about 70 ° C. At the same time, the temperature of the interior material in the room rises near 100 ° C. on the upper surface of the instrument panel and rises to near 70 ° C. on the ceiling. Not to mention the discomfort of riding in such a situation, the interior material temperature does not fall easily even after the ventilation or cooling system is activated, and radiant heat continues to be radiated to the occupants for a long time, which greatly impairs comfort. I have. The main cause of this temperature rise is the penetration of solar radiation into the room.
[0003]
Conventionally, as a measure for suppressing such a rise in temperature, attention has first been paid to glass, and the solar transmittance, which affects the amount of sunlight transmitted to a room, has been reduced. In current vehicles, taking windshield glass as an example, the ratio is 45 to 53%. This reduces the amount of solar radiation that passes through the glass and enters the room. This is done by adjusting the composition of the glass to increase the absorption so that the glass absorbs some of the solar radiation.
[0004]
Further, as another measure for suppressing the temperature rise, for example, as described in JP-A-2001-12266, an airbag module cover as an automobile interior part to which an infrared reflective pigment is added has been proposed.
[0005]
Shades that are arranged along the window of a car and block solar radiation passing through the glass are also commercially available and known. In order to further enhance the effect, there has been proposed a shade in which a material having a high reflectance is attached to a side of the shade facing the glass in order to return the sunlight from the room to the outside.
[0006]
[Problems to be solved by the invention]
However, each of the measures discussed here has problems. First, in order to reduce the amount of solar radiation that passes through the glass, a part of the light is absorbed by the glass, so that the glass stores heat. In general, in a commercially available vehicle, the total reflectance of solar radiation is about 10 to 33%, depending on the part of the interior parts. Even if a part of the light is reflected, the glass absorbs heat and stores heat. The same applies to the case where a shade to which a material having a high reflectance is attached is used.
[0007]
In any case, the glass accumulates heat and the temperature rises. Since the glass becomes hotter than the surrounding air, the heat is distributed and radiated outside and inside the room.
During traveling, the heat stored in the glass is cooled on the outside by the traveling wind which is the wind received by the vehicle during traveling, and most of the heat is radiated to the outside. As a result, heat radiation to the indoor side is reduced. However, when the vehicle is parked, the effect of cooling the glass by a strong wind such as a running wind cannot be expected, and a large amount of heat is radiated from the glass into the room. That is, the current measure is a measure that can be expected to be effective only during traveling.
[0008]
In view of the above problems, the present invention absorbs light such as sunlight and stores heat during parking when the same means (glass cooling by running wind) as during running cannot be used, and reduces the indoor environment by radiating heat to the room. It is an object of the present invention to provide a vehicle provided with a high transmittance glass and a highly reflective interior that suppresses deterioration and does not impair the forced cooling effect of the running wind of the glass even during running.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention examines glass and the interior of the room to suppress the deterioration of the indoor environment due to heat radiation from the glass to the room even during parking, and by satisfying the following requirements. It was considered that the above-mentioned object was achieved.
The glass has a solar radiation transmittance of 60% or more.
-The total reflectance of the interior skin is 40% or more.
[0010]
Function and effect of the present invention
In the present invention, by setting the glass of the vehicle to have a solar radiation transmittance of 60% or more, first, it is possible to easily pass the reflected light from the room to the outside of the vehicle. At the same time, by setting the total reflectance of the interior skin to 40% or more, the solar radiation transmitted through the glass can be returned to the glass while keeping the light.
[0011]
Therefore, although the amount of solar radiation entering the room increases, the amount of light in the opposite direction due to the reflection of the interior also increases, and the difference between the transmitted solar radiation and the reflected light decreases. That is, since the absorption rate of the glass is low, the glass does not store heat, and the light absorption rate of the interior skin also decreases, so that the heat is not stored and the temperature rise can be prevented.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the driving support device according to the present invention will be described, but the present invention is not limited to the embodiments.
[0013]
(Embodiment 1)
A first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram showing the first embodiment. The sunlight (sunlight) passes through the glass and hits the skin of the room (interior). The applied light is reflected, transmitted through the glass, and emitted outside the vehicle. Since the glass and interior of the vehicle of the present invention hardly absorb light, the temperature rise is small. In the first embodiment, by setting the glass of the vehicle to have a solar radiation transmittance of 60% or more, first, the reflected light from the room can be easily emitted to the outside of the vehicle. Of course, solar radiation is easy to enter the passenger compartment, but at the same time it is easy to come out. The effect is greater when the amount of reflected light from the room increases.
[0014]
Next, the ratio of solar radiation absorbed by the glass, the absorptance, is lower than that of conventional glass. This makes it difficult for the glass to absorb the solar radiation and the reflected light from the vehicle interior, so that the temperature rise of the glass itself can be reduced.
[0015]
When the transmittance is 60% or less, light is easily absorbed and the temperature easily rises. Therefore, at the time of parking, it is difficult to release the heat accumulated in the glass due to light absorption.
[0016]
At the same time, by setting the total reflectance of the interior skin to 40% or more, the solar radiation transmitted through the glass can be returned to the glass while keeping the light. That is, the high transmittance glass allows the incident light to be directly emitted as reflected light to the outside.
[0017]
Next, the temperature rise of the interior can be reduced. Since the transmittance of the interior can be regarded as 0%, non-reflected light is absorbed and converted into heat, and the temperature rises. Since the light absorption of the interior skin is low, the temperature rise can be further reduced. As a result, the amount of heat transferred to the indoor air is reduced.
[0018]
If the total reflectance is 40% or less, the interior skin absorbs light and converts it into heat, and the temperature easily rises, and the amount of light reflected on the glass is not sufficient.
[0019]
The solar transmittance of the glass described herein is determined by JIS R 3106 (a test method for transmittance, reflectance, emissivity, and solar heat gain of sheet glass). The total reflectance of the interior skin was determined from the results of the spectral total reflection measurement of the skin using Appendix Table 2 of JIS R 3106.
[0020]
The effects obtained for the first time by providing the high transmittance glass and the highly reflective interior skin together as described above are summarized as follows.
[0021]
First, it is possible to reduce the amount of light, which is a form of heat, entering the vehicle interior through the glass. This is because the amount of solar radiation entering the room increases, but the amount of light in the opposite direction due to the reflection of the interior also increases. Heat transfer by light is the difference between transmitted sunlight and reflected light, which is smaller than in the past. This difference decreases as the reflectance of the interior skin increases. Further, since the reflectance of the interior skin is high, light is not absorbed.
[0022]
Next, the absorption rate of the glass decreases, so that the glass does not store heat. As a result, the amount of heat radiation inside / outside the vehicle is reduced. Of course, this does not hinder the cooling effect of the window glass by the traveling wind. In addition, since the light absorption rate of the interior skin also decreases, heat does not accumulate and the temperature rise can be prevented.
[0023]
The glass satisfies the same requirements as ordinary automotive glass except for the solar transmittance. The glass described here is a windshield glass, a side glass, and a rear glass (corresponding to claims 4 and 5). Further, the solar radiation transmittance is preferably 60% or more (corresponding to claim 1), and more preferably 70% or more. More preferably, the transmittance in the ultraviolet region (300 to 380 nm) is 50% or less in order to prevent deterioration of the interior skin.
[0024]
Glass having such a high solar transmittance is SiO 2 ₂ , CaO and Na ₂ Soda lime silica glass containing O as an essential component. SiO ₂ , CaO and Na ₂ The O content is preferably 65 to 75% by weight, 1 to 12% by weight, and 1 to 18% by weight. Further, it preferably has the following composition.
SiO ₂ 65-75% by weight
Al2O3 0.1-5% by weight
MgO 1-6% by weight
CaO 1 to 12% by weight
Na2O + K ₂ O 5-18% by weight
(Corresponding to claim 2)
[0025]
More preferably, it contains Fe and Ti, and Fe is Fe ₂ O ₃ 0.10 to 0.42% by weight, Ti is TiO ₂ 2% by weight or less (corresponding to claim 3). If Fe is 0.10% by weight or less, the solar radiation transmittance is lower than 60%, and if it exceeds 0.42% by weight, the transmittance of ultraviolet rays which deteriorates the interior skin increases, which is not desirable. Although Ti is effective in lowering the transmittance of ultraviolet rays, the presence of 2% by weight or more undesirably lowers the solar transmittance below 60%. On the other hand, the solar transmittance of generally used automotive glass varies depending on the use site, but is generally 45 to 55% or less.
[0026]
FIG. 2 is a diagram illustrating one of interior parts to which the interior skin according to Embodiment 1 can be applied. The corresponding part is at least one of the instrument 1, the rear parcel shelf 2, the seat 3, the door trim 4, the head lining 5, and the pillar garnish 6 (corresponding to claim 12). Particularly, a great effect can be obtained by setting the reflectance to a high value in a combination of the instrument 1 and the rear parcel shelf 2 (corresponding to claim 13). More preferably, the instrument 1, the rear parcel shelf 2 and the seat 3 are combined. Combination (corresponding to claim 14). This site is a site where temperature rise is likely to occur due to solar radiation transmitted through the glass. As for the interior skin, similarly to the case of the glass, the performance other than the total reflectance to which attention is paid in this embodiment may be the same as that of the ordinary interior material. The total reflectance of a commonly used interior skin is 10 to 30%.
[0027]
The method for increasing the reflectance can be achieved by using the following materials for the interior skin. That is, aluminum foil, copper foil, an aluminum foil whose surface is protected by a transparent resin layer, a copper foil whose surface is protected by a transparent resin layer, a resin film to which aluminum is adhered, a resin film coated with a reflective paint, and a reflective material And / or a resin film mixed with a white pigment, an aggregate of fibers in which a metal such as aluminum or copper is evaporated, an aggregate of fibers in which a reflector and / or a white pigment is mixed, or at least 60% by weight of bright yarn Preferably, it is a laminate of a design layer composed of a fibrous body used in an amount of 75% by weight or more, a reflective layer that reflects visible light, near infrared light, and far infrared light, and a support layer that supports the reflective layer. Correspondence).
[0028]
When an aluminum foil, a copper foil, an aluminum foil having a transparent resin layer adhered thereto, and a copper foil having a transparent resin layer adhered thereto are used as the reflective material for the skin, the thickness is preferably 1 μm to 1000 μm, particularly preferably 5 μm to 50 μm. It is. When the thickness is less than 1 μm, the strength is low and the sheet is easily broken during handling. If it exceeds 1000 μm, flexibility is impaired. The aluminum foil to which the transparent resin layer is adhered and the copper foil to which the transparent resin layer is adhered are used with the surface of the resin layer adhered to prevent the resin or the metal surface of the copper foil from being damaged by the resin.
[0029]
When using a resin film with aluminum adhered to the reflective material for the skin, a resin film coated with a reflective paint, or a resin film mixed with a reflective material and / or a white pigment, the aluminum, from the surface without the reflective paint It is desirable that the resin has an average transmittance of 70% or more in the visible to infrared region so that heat rays are not easily absorbed by the resin film. The type is not particularly limited, but polyester, polyethylene, or the like is preferable in consideration of heat resistance and flexibility (corresponding to claim 7).
[0030]
The thickness of the resin film is preferably 5 μm to 100 μm for handling. It is desirable that the thickness for attaching aluminum is in the range of 5 nm to 100 μm. If the thickness is less than 5 nm, the reflection effect is not sufficient, and if it exceeds 100 μm, the cost increases.
[0031]
As a method for attaching aluminum, vapor deposition is preferable. As the reflective paint, a paint containing aluminum scale as a main component can be used (corresponding to claim 8). The thickness of the coating is preferably from 10 nm to 100 μm, similarly to aluminum adhered to the resin. If the thickness is less than 10 nm, the reflection effect is not sufficient, and if it exceeds 100 μm, the film is easily broken.
[0032]
The reflecting material and white pigment to be mixed into the resin include the above-mentioned aluminum flakes, titanium oxide fine particles, zinc oxide fine particles, and mica powder having titania adhered to the surface (corresponding to claim 9). The content is 0.001 to 0.2% by weight. If the content is 0.001% by weight or less, the transmittance is high, and even if 0.2% by weight or more is mixed, the moldability as the skin is difficult.
[0033]
When an aggregate of fibers in which aluminum and / or copper is deposited, or an aggregate of fibers in which a reflective material and / or a white pigment is mixed is used as the interior skin, the resin mainly constituting the aggregate fibers is: Desirably, it is polyester (corresponding to claim 10). The reflection material and / or white pigment of the fiber aggregate is preferably at least one selected from the group consisting of aluminum scales, titania fine particles, and mica powder having titania adhered to the surface. Correspondence).
[0034]
Lamination of a design layer composed of a fibrous body using at least 60% by weight or more, preferably 75% by weight or more of a bright yarn, a reflective layer that reflects visible light, near-infrared light and far-infrared light, and a support layer that supports the reflective layer As the reflective layer of the body, it is preferable to use any one of the above-mentioned resin film to which aluminum is adhered, a resin film to which a reflective paint is applied, and a resin film in which a reflective material and / or a white pigment is mixed. This product can achieve both design and reflection performance, and is preferable as an interior skin.
[0035]
The interior member using the skin described in the first embodiment can be produced using a known method. For example, in the case of an instrument, a skin corresponding to the first embodiment is attached by a vacuum molding method. In the case of a rear parcel shelf, the skin of the first embodiment is attached to a resin board with an adhesive.
[0036]
(Embodiment 2)
FIG. 3 is a schematic diagram showing Embodiment 2 of the present invention. The sunlight (sunlight) passes through the glass and hits the shade at a position facing the glass. The applied light is reflected, transmitted through the glass, and emitted outside the vehicle (corresponding to claim 15). This is to prevent light and heat from entering the room inside the shade by reflecting and insulating the light that has been used during parking and transmitted through the glass. The shade is arranged so as to face the glass, and when used, is flat, and the total solar reflectance of the surface facing the glass is 40% or more, preferably 70% or more (corresponding to claim 16).
[0037]
As the reflective material of the shade, an aluminum foil, a copper foil, an aluminum foil whose surface was protected by a transparent resin layer, a copper foil whose surface was protected by a transparent resin layer, a resin film to which aluminum was applied, and a reflective paint were applied. A resin film, a resin film in which a reflective material and / or a white pigment are mixed can be used.
[0038]
In addition, in order to prevent wrinkles from being formed when the film is rolled up, the above-mentioned reflection material is used as a core material with a foam having a thickness of 0.3 to 3 mm having flexibility and heat insulation so as to facilitate handling. It is also desirable to have one attached to the surface.
[0039]
The effect is enhanced if the surface to be attached is at least the side facing the glass and the interior space side is also attached.
[0040]
FIG. 4 is a diagram illustrating a preferred arrangement of shades according to the second embodiment. A preferred position is a shade 11 for the windshield glass, which is arranged on the instrument 1. Further, it is more preferable that the side glass 12 and the rear glass 13 have shades to be used. It is desirable that the gap between the shade and the glass be small, and it is preferable that the gap be within 10 cm from the glass, and preferably within 3 cm.
[0041]
(Example)
Next, embodiments of the vehicle according to the present invention will be described. However, it goes without saying that the present invention is not limited to only such embodiments.
[0042]
[Example 1]
Example 1 A vehicle having a glass having the following composition (solar transmittance 70%) applied to a windshield and having the following instrument (solar total reflectance 42%) and rear parcel shelf (solar total reflectance 42%) is shown in Example 1. And At this time, Tempalite manufactured by Asahi Glass Co., Ltd. having a solar transmittance of 32% was used as the side glass, and Tempalite manufactured by Asahi Glass Co., Ltd. having a solar transmittance of 40% was used as the rear glass. The sheet has a total solar reflectance of 35%, the headlining has a solar reflectance of 33%, the door trim has a total solar reflectance of 15%, and the pillar garnish has a solar total reflectance of 33%.
[0043]
(Wind shield glass)
Consists of the following and unavoidable impurities
SiO ₂ 70% by weight
Al ₂ O ₃ 1.8% by weight
MgO 4.0% by weight
8.5% by weight of CaO
Na ₂ O 12.5% by weight
K ₂ O 0.6% by weight
Fe ₂ O ₃ 0.180% by weight
TiO ₂ 1.60% by weight
[0044]
(Instrument skin)
Using a PVC skin containing the following composition, an instrument was formed by a vacuum molding method.
100 parts by weight of resin component (polyvinyl chloride alone)
72 parts by weight of phthalate plasticizer
Phosphate plasticizer 7 parts by weight
Ba-Zn based stabilizer 3 parts by weight
Amine stabilizer 0.4 parts by weight
1 part by weight of mica powder with titania adhered to the surface
[0045]
(Rear parcel shelf skin)
70% of a bright yarn of polyethylene terephthalate (hereinafter referred to as PET) having a fiber diameter of 2 denier 51 mm and PET conjugate fiber having a fiber diameter of 3 denier 51 mm (core component: PET, sheath component: copolymerized polyester having a melting point of 170 ° C.) 50g / m, composed of 30% bright yarn ² Was adjusted using a card cloth layer, and needle-punched to obtain a design layer nonwoven fabric.
An aluminum-deposited film in which aluminum was deposited on one surface of a polyester film having a thickness of 25 microns (Emblet MP25, manufactured by Unitika Co., Ltd.) was used as the reflective layer and the support layer. The design layer nonwoven fabric was bonded to the reflection layer side by frame lamination to obtain a skin material.
[0046]
[Example 2]
Example 2 A vehicle having the same configuration as that of Example 1 except that the front seat and the rear seat of the vehicle were changed and the total solar reflectance of the skin was 42%.
(Seat skin)
An epidermis was prepared in the same manner as the rear parcel shelf.
[0047]
[Example 3]
Example 3 A vehicle having the same configuration as that of Example 2 except that the door trim, the head lining, and the pillar garnish were changed and the total solar reflectance of the skin was 42%.
(Door trim, pillar garnish skin)
A polyethylene terephthalate film containing 0.01% by weight of titanium oxide was used as a skin. The skin was attached to a resin core material formed into a required shape by mold press molding.
(Headlining skin)
The epidermis was prepared in the same manner as the rear parcel. The skin material 3 of the present invention was attached to a core material of foamed noril, which is a modified product of polyphenylene oxide (PPO).
[0048]
[Example 4]
The vehicle of Example 4 was the same as the vehicle of Example 1, except that the glass having a solar radiation transmittance of 62% was used.
(Wind shield glass)
Consists of the following and unavoidable impurities
SiO ₂ 69.5% by weight
Al ₂ O ₃ 2.0% by weight
3.8% by weight of MgO
8.7% by weight of CaO
Na ₂ O 12.4% by weight
K ₂ O 0.4% by weight
Fe ₂ O ₃ 0.230% by weight
TiO ₂ 1.40% by weight
[0049]
[Example 5]
The vehicle of Example 1 was the same as Example 5 except that the total solar reflectance of the instrument and the rear parcel shelf was 50%.
(Instrument skin)
Using a PVC skin containing the following composition, an instrument was formed by a vacuum molding method.
100 parts by weight of resin component (polyvinyl chloride alone)
72 parts by weight of phthalate plasticizer
Phosphate plasticizer 7 parts by weight
Ba-Zn based stabilizer 3 parts by weight
Amine stabilizer 0.4 parts by weight
1.5 parts by weight of mica powder with titania adhered to the surface
(Rear parcel shelf skin)
Aluminum pigment (Leafing aluminum paste manufactured by Toyo Aluminum Co., Ltd.) 10 parts both parts, oil-free polyester resin varnish (Dai Nippon Ink Co., Ltd., solid content 60%) 5 parts both and polyisocyanate resin (Nippon Polyurethane Co., The mixture was dispersed and mixed with a single part and diluted with a solvent to adjust the viscosity, and the dried film thickness of a 50-micron polyester film (Emblet S25 manufactured by Unitika Ltd.) was adjusted to 20 microns. And then dried at 80 ° C. for 10 minutes to form a reflective layer and a support layer. A design layer nonwoven fabric obtained in the same manner as in Example 1 was adhered to the reflective layer side by frame lamination to obtain a skin material.
[0050]
[Example 6]
The vehicle of Example 1 was the same as Example 6, except that the glass having a solar transmittance of 70% was used on the side other than the windshield.
[0051]
[Example 7]
The vehicle of Example 1 was the same as the vehicle of Example 1, except that the glass having a solar transmittance of 70% was used for the side and rear in addition to the windshield. The side and rear glasses have the same composition as the windshield glass of the first embodiment.
Example 8
The vehicle of Example 7 was the same as Example 8 except that the seat, the door trim, the head lining, and the pillar garnish were changed and the total solar reflectance of the skin was changed to 42%.
[0052]
[Example 9]
The vehicle of Example 1 was the same as the vehicle of Example 1 except that a shade having a total solar reflectance of 70% on both surfaces was provided at a portion facing the windshield glass. This shade has a shape covering the windshield glass with white PE foam Slim Ace R3002 (manufactured by Furukawa Electric Co., Ltd.).
[0053]
[Example 10]
The vehicle of Example 1 was the same as Example 10, except that the shade facing the windshield glass was provided with a 90% total solar reflectance on the glass side and 81% on the indoor side. This shade is processed into a shape that covers the windshield glass with an Al-deposited PET film (Emblet MP12, manufactured by Unitika Ltd.).
[0054]
[Example 11]
The vehicle of Example 1 was the same as the vehicle of Example 1, except that a shade having a total reflectance of 87% on the glass side was provided at a portion facing the windshield glass. This shade is made of a white PE foam (made by Furukawa Electric Co., Ltd., trade name: Slim Ace R3002) with an Al vapor-deposited PET film (product name: Unitika Co., Ltd., trade name: Emblet MP12) attached to the glass side. It is processed into a shape that covers the glass.
[0055]
[Example 12]
Example 12 The vehicle of Example 1 was the same as Example 12 except that shades having a total reflectance of 87% on both sides were provided on the portion facing the windshield glass. This shade is made of a white PE foam (made by Furukawa Electric Co., Ltd., trade name: Slim Ace R3002), and an aluminum vapor-deposited PET film (made by Unitika Co., Ltd., trade name: Emblet MP12) attached to both sides, and is a windshield glass. It is processed into a shape that covers
[0056]
[Example 13]
The vehicle of Example 6 was the same as Example 13 except that the same shade as that facing the windshield glass was provided at the portion facing the side glass in addition to the portion facing the windshield glass.
[0057]
[Example 14]
A vehicle of Example 14 was the same as Example 14 except that the same shade as that of Example 9 was provided in the portion facing the windshield glass, the side, and the rear glass.
[0058]
[Example 14]
In the vehicle according to the seventh embodiment, a vehicle in which a shade similar to that of the tenth embodiment is provided at a portion facing the windshield glass, the side, and the rear glass is referred to as a fourteenth embodiment.
[0059]
[Example 15]
In the vehicle of the seventh embodiment, a vehicle in which a shade similar to that of the eleventh embodiment is provided at a portion facing the windshield glass, the side, and the rear glass is referred to as a fifteenth embodiment.
[0060]
[Example 16]
In the vehicle of the seventh embodiment, a vehicle in which a shade similar to that of the twelfth embodiment is provided at a portion facing the windshield glass, the side, and the rear glass is referred to as a sixteenth embodiment.
[0061]
[Comparative Example 1]
The vehicle of Example 1 is the same except that the glass having the solar transmittance of 45% is used as the windshield glass, and the instrument and the rear parcel shelf are used with the solar total reflectance of 10% and 12%, respectively. Tailoring was performed as Comparative Example 1.
(Wind shield glass composition)
Consists of the following and unavoidable impurities
SiO ₂ 71.0% by weight
Al ₂ O ₃ 1.5% by weight
3.0% by weight of MgO
12.5% by weight of CaO
Na ₂ O 13.5% by weight
K ₂ O 0.5% by weight
Fe ₂ O ₃ 0.30% by weight
TiO ₂ 2.60% by weight
[0062]
[Comparative Example 2]
The vehicle of Comparative Example 1 was the same as Comparative Example 2 except that the total solar reflectance of the instrument and the rear parcel shelf was 36%.
[0063]
[Comparative Example 3]
The vehicle of Example 1 was prepared in the same manner as Comparative Example 3 except that the glass having a solar transmittance of 62% was used for the windshield glass, the side glass, and the rear glass.
[0064]
[Comparative Example 4]
The vehicle of Comparative Example 1 was the same as Comparative Example 4 except that a shade facing the windshield glass was provided at a portion facing the windshield glass so that the total reflectance of the glass was 90% and the interior side was 81%. This shade is processed into a shape that covers the windshield glass with an Al-deposited PET film (Emblet MP12, manufactured by Unitika Ltd.).
[0065]
[Comparative Example 5]
Comparative Example 5 was the same as that of the vehicle of Comparative Example 4 except that a shade similar to that facing the windshield glass was provided at the portion facing the side and rear glass in addition to the portion facing the windshield glass. .
[0066]
(List of Examples and Comparative Examples)
Table 1 shows a comparison between the glass solar radiation transmittance and the interior solar reflectance of the vehicles obtained in Examples and Comparative Examples.

[0067]
Next, the evaluation method of the vehicle obtained in the example and the comparative example is as follows.
<Test method 1>
The artificial climate chamber is large enough to hold a vehicle, can maintain the inside at a constant temperature and humidity, can illuminate the exterior of the vehicle with light equivalent to solar radiation from artificial sun lamps, and can supply wind at a constant wind speed from one direction. The vehicle was put in and left for 2 hours under the following conditions. This simulated the state of being left under the scorching sun.
(Conditions for placing the car)
Temperature: 35 ° C
Humidity: 70%
Solar radiation: 1000 W / m ² (Measured with a pyranometer on the roof), irradiation is carried out from directly above the car
Wind: 0.1m / s (supplied from the front of the vehicle)
A thermocouple was previously installed on the vehicle left under such conditions at a position corresponding to the head of the occupant in the driver's seat, and the temperature after leaving for 2 hours was measured.
[0068]
Table 2 shows the results. The temperature of the vehicle according to the embodiment of the present invention is clearly lower than that of the vehicle according to the comparative example. The 70 ° C. level in the comparative example is a temperature that cannot be tolerated by a human immediately after getting into the car, and the level of 60 ° C. to 40 ° C. in the example is a level allowed up to a maximum of 30 seconds after getting on.

[Brief description of the drawings]
FIG. 1 is a schematic diagram illustrating a configuration of a first embodiment.
FIG. 2 is a diagram illustrating a portion to which an interior with high solar reflectance according to the first embodiment is applied.
FIG. 3 is a schematic diagram illustrating a configuration of a second embodiment.
FIG. 4 is a diagram showing a portion to which a shade is applied according to a second embodiment.
[Explanation of symbols]
1 Instrument
2 Rear parcel shelf
3 sheets
4 door trim
5 Headlining
6 Pillar garnish
11 shade
12 Side glass
13 Rear glass

Claims (16)

A window glass having a solar transmittance of 60% or more,
An interior skin having a part having a total solar reflectance of 40% or more,
A vehicle comprising a high transmittance glass and a highly reflective interior, comprising: A vehicle comprising the high transmittance glass and the high reflection interior according to claim 1,
A soda-lime silica glass containing the window glass having the solar radiation transmittance of 60% or more as essential components of SiO ₂ , CaO and Na ₂ O, and having the following composition SiO _2: 65 to 75% by weight.
Al ₂ O ₃ 0.1-5% by weight
MgO 1-6% by weight
CaO 1 to 12% by weight
Na ₂ O + K ₂ O 5 to 18% by weight
A vehicle equipped with a high transmittance glass and a high reflection interior, characterized in that: A vehicle comprising the high transmittance glass and the high reflection interior according to claim 1 or 2,
A soda-lime silica glass containing a window glass having a solar radiation transmittance of 60% or more as essential components of SiO ₂ , CaO and Na ₂ O, containing Fe and Ti, and having Fe of 0.10 as Fe ₂ O _3. A vehicle comprising high transmittance glass and highly reflective interior, wherein the glass is made up to 0.42% by weight and Ti is ₂ % by weight or less as TiO2. A vehicle comprising the high transmittance glass and the high reflection interior according to claim 1,
A vehicle having a high transmittance glass and a highly reflective interior, wherein a window glass having a solar transmittance of 60% or more is a windshield glass. A vehicle comprising a high transmittance glass and a high reflection interior according to any one of claims 1 to 4,
A vehicle having a high transmittance glass and a highly reflective interior, wherein the window glass having the solar transmittance of 60% or more is a windshield glass and a side glass. A vehicle comprising the high transmittance glass and the high reflection interior according to any one of claims 1 to 5,
An interior skin having a part where the total solar reflectance is 40% or more,
Aluminum foil, copper foil, aluminum foil whose surface is protected by a transparent resin layer, copper foil whose surface is protected by a transparent resin layer, a resin film to which aluminum is adhered, a resin film coated with a reflective paint, a reflective material and / or Or at least 60% by weight or more of a resin film mixed with a white pigment, an aggregate of fibers in which aluminum and / or copper is deposited, an aggregate of fibers in which a reflective material and / or a white pigment is mixed, or a bright yarn. Is a design layer consisting of at least one of the fibrous bodies used at 75% by weight or more,
A reflective layer that reflects visible light, near infrared light and far infrared light,
A laminate formed by laminating a support layer that supports the reflective layer,
A vehicle having a high transmittance glass and a highly reflective interior, characterized in that the interior skin includes any one of the following. A vehicle comprising the high transmittance glass and the high reflection interior according to any one of claims 1 to 6,
An interior skin having a part where the total solar reflectance is 40% or more,
Aluminum foil whose surface is protected by a transparent resin layer, copper foil whose surface is protected by a transparent resin layer, a resin film to which aluminum is adhered, a resin film coated with a reflective paint, a reflective material and / or a white pigment are mixed. At least one of the resin films,
A vehicle comprising a high transmittance glass and a highly reflective interior, wherein the resin layer and / or the resin film is made of any one of polyester, vinyl chloride, and polyethylene. A vehicle comprising a high transmittance glass and a highly reflective interior according to any one of claims 1 to 7,
A high transmittance glass and a highly reflective interior, wherein the interior skin having a part where the total solar reflectance is 40% or more is a resin film coated with a reflective paint mainly composed of aluminum scales. A vehicle comprising: A vehicle comprising the high transmittance glass and the highly reflective interior according to any one of claims 1 to 8,
An interior skin having a part where the total solar reflectance is 40% or more,
A resin film mixed with a reflective material and / or a white pigment, wherein the reflective material and / or the white pigment is a group consisting of aluminum scale, titanium oxide fine particles, zinc oxide fine particles, and mica powder having titania adhered to the surface. A vehicle comprising a high transmittance glass and a highly reflective interior, characterized in that the resin film is at least one resin film selected from the group consisting of: A vehicle comprising the high transmittance glass and the high reflection interior according to claim 1,
An interior skin having a part where the total solar reflectance is 40% or more,
An aggregate of fibers in which aluminum and / or copper is deposited, or an aggregate of fibers in which a reflective material and / or a white pigment is mixed, wherein the resin mainly constituting the aggregate is polyester. Vehicle with high transmittance glass and high reflection interior. A vehicle comprising the high transmittance glass and the high reflection interior according to any one of claims 1 to 6,
The interior total skin having a part where the total solar reflectance is 40% or more as a part thereof is an aggregate of fibers mixed with a reflective material and / or a white pigment,
The reflective material and the white pigment are made of at least one selected from the group consisting of aluminum scale, titania fine particles, and mica powder having titania adhered to the surface. vehicle. A vehicle comprising a high transmittance glass and a highly reflective interior according to any one of claims 1 to 11,
An interior skin having a part where the total solar reflectance is 40% or more,
A vehicle having high transmittance glass and high reflection interior, wherein at least one of an instrument, a rear parcel shelf, a seat, a door trim, a head lining, and a pillar garnish is provided. A vehicle comprising the high transmittance glass and the high reflection interior according to any one of claims 1 to 12,
An interior skin having a part where the total solar reflectance is 40% or more,
A vehicle comprising at least an instrument and a skin of a rear parcel shelf, which is provided with a high transmittance glass and a highly reflective interior. A vehicle comprising a high transmittance glass and a highly reflective interior according to any one of claims 1 to 13,
An interior skin having a part where the total solar reflectance is 40% or more,
A vehicle equipped with at least an instrument, a rear parcel shelf, and a skin of a seat, comprising a high transmittance glass and a highly reflective interior. A vehicle comprising the high transmittance glass and the high reflection interior according to any one of claims 1 to 14,
An interior having a part where the total solar reflectance is 40% or more,
A vehicle equipped with a high transmittance glass and a high reflection interior, wherein a shade is arranged to face the glass. A vehicle comprising the high transmittance glass and the high reflection interior according to any one of claims 1 to 15,
A vehicle comprising a high transmittance glass and a highly reflective interior, wherein the shade has a total solar reflectance of 70% or more.

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