JPH08209636A - Road reflecting mirror - Google Patents
Road reflecting mirrorInfo
- Publication number
- JPH08209636A JPH08209636A JP7014230A JP1423095A JPH08209636A JP H08209636 A JPH08209636 A JP H08209636A JP 7014230 A JP7014230 A JP 7014230A JP 1423095 A JP1423095 A JP 1423095A JP H08209636 A JPH08209636 A JP H08209636A
- Authority
- JP
- Japan
- Prior art keywords
- sodium acetate
- plate
- enclosing body
- heat storage
- reflecting mirror
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Road Signs Or Road Markings (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、曇り防止機能を備えた
道路反射鏡に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road reflector having an anti-fog function.
【０００２】[0002]
【従来の技術】従来、例えば特開昭６３−１６７８０３
号公報や特開平２−２０４５０８号公報など鏡面板の裏
側に不凍液などの蓄熱材を配設し、鏡面が曇ることを防
止するものが公知である。2. Description of the Related Art Conventionally, for example, Japanese Patent Laid-Open No. 63-167803.
It is known that a heat storage material such as an antifreezing liquid is provided on the back side of a mirror surface plate to prevent the mirror surface from fogging, as disclosed in Japanese Patent Laid-Open No. 2-204508.
【０００３】これは、昼間の暖かい外気や日光による熱
を不凍液などの蓄熱材に蓄熱して鏡面温度をある程度保
持し、夜間から朝方にかけてなど外気が下がったときに
鏡面板の温度が下がり鏡面に水蒸気が露結して曇った
り、雪が付設したりすることを防止するものである。This is because the temperature of the mirror surface plate is lowered to the mirror surface when the outside air temperature drops to some extent by storing the heat of daytime warm outside air or sunlight in a heat storage material such as antifreeze to keep the mirror surface temperature to some extent. It is intended to prevent water vapor from condensing and becoming cloudy or snow being attached.
【０００４】この蓄熱材としては顕熱蓄熱量の大きい水
が有効であるが、設置場所によってその周辺温度（外気
温）も違い、日本の寒冷地においてはマイナス２０℃近
くまで外気温が下がることがあるので、氷点下でも凍ら
ないものが望ましい。Water having a large amount of sensible heat storage is effective as this heat storage material, but the ambient temperature (outside air temperature) differs depending on the installation location, and in cold regions of Japan, the outside air temperature can drop to around -20 ° C. Therefore, it is desirable that it does not freeze even below freezing.
【０００５】そこで、従来は特開昭６３−１６７８０３
号のように不凍液を蓄熱材として使用することが試みら
れ、更に不凍液としてはエチレングリコールやプロピレ
ングリコール水溶液が一般的に知られているが、特開平
２−２０４５０８号のように使用範囲と想定される−２
０℃〜＋４０℃で液相であり、水に近い顕熱蓄熱作用を
果たすプロピレングリコール水溶液を使用することが試
みられている。Therefore, in the prior art, Japanese Patent Laid-Open No. 63-167803 has been used.
The use of an antifreeze solution as a heat storage material has been attempted, and an ethylene glycol or propylene glycol aqueous solution is generally known as an antifreeze solution, but it is assumed to be within the range of use as disclosed in JP-A-2-204508. Ru-2
It has been attempted to use an aqueous propylene glycol solution which is in a liquid phase at 0 ° C to + 40 ° C and has a sensible heat storage effect close to that of water.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、従来考
えられているこれらの不凍液は、これを扱う際などに反
射鏡内部に漏れ出た場合に鏡面板や裏板が容易に錆付い
てしまう中性若しくは酸性液であり、また、これが流れ
出た場合に人体に無害であるとは言えずこの意味で安全
性に劣る。However, these conventionally considered antifreeze solutions are neutral or have a tendency to easily rust the mirror surface plate or the back plate when they leak into the reflecting mirror when handling them. It is an acidic liquid, and if it flows out, it cannot be said to be harmless to the human body, and in this sense it is inferior in safety.
【０００７】本発明は、道路反射鏡において使用する顕
熱蓄熱材として錆の問題もなく、人体に全く無害で、安
全性に秀れた溶液を見い出し、これを使用して従来例に
比して更に実用性に秀れた道路反射鏡を提供することを
目的としている。According to the present invention, a sensible heat storage material used in a road mirror has no rust problem, is completely harmless to the human body, and has a highly safe solution. The purpose is to provide a road reflector that is even more practical.
【０００８】[0008]
【課題を解決するための手段】添付図面を参照して本発
明の要旨を説明する。The gist of the present invention will be described with reference to the accompanying drawings.
【０００９】鏡面板１の裏側に酢酸ナトリウム水溶液ｓ
を封入した柔軟性を有する蓄熱封入体２を配設し、この
蓄熱材封入体２の裏側に断熱材３を介して裏板４を付設
したことを特徴とする道路反射鏡に係るものである。On the back side of the mirror plate 1, an aqueous solution of sodium acetate s
And a back plate 4 attached to the back side of the heat storage material enclosure 2 with a heat insulating material 3 interposed between the heat storage enclosure 2 and the back plate 4. .
【００１０】[0010]
【作用】蓄熱材２は昼間の暖気を蓄熱し、夜間や朝方な
ど外気温が下がった際、この熱を放出して鏡面板の表面
温度が露点より下がる現象を抑制して、鏡面板の鏡面が
曇ったり、雪が付着することを防止する。[Function] The heat storage material 2 stores warm air in the daytime and suppresses the phenomenon that the surface temperature of the mirror surface plate falls below the dew point when the outside air temperature decreases at night or in the morning, and the mirror surface of the mirror surface plate is suppressed. Prevents fogging and snow buildup.
【００１１】[0011]
【実施例】本実施例は、フード付枠５，鏡面板１，蓄熱
材封入体２，断熱材３，裏板４の順で組み付けるもので
ある。[Embodiment] In this embodiment, a hood frame 5, a mirror plate 1, a heat storage material enclosure 2, a heat insulating material 3 and a back plate 4 are assembled in this order.
【００１２】蓄熱材封入体２は柔軟性を有する樹脂で成
形した容体で、本実施例では管状体例えば市販の水道用
ホースを使用し、この蓄熱材封入体２に不凍液などの蓄
熱材を収納した後、蓄熱材封入体２の端部２'を閉塞
し、これを渦巻き状にして鏡面板１の裏面に当接配設し
ている。The heat storage material enclosure 2 is a container formed of a flexible resin. In this embodiment, a tubular body such as a commercially available water supply hose is used, and the heat storage material enclosure 2 contains a heat storage material such as antifreeze. After that, the end portion 2'of the heat storage material enclosure 2 is closed, and the end portion 2'is made into a spiral shape and disposed in contact with the back surface of the mirror plate 1.
【００１３】従って、適用する鏡面板の大きさなどが異
なる場合でも蓄熱材封入体２を配設する際に、渦巻状に
配する渦間隔を調整するだけで、均一に蓄熱材を鏡面板
１の裏面全面に配することができる。Therefore, even when the size of the mirror surface plate to be applied is different, when the heat storage material enclosure 2 is arranged, the heat storage material is uniformly distributed only by adjusting the vortex spacing. Can be placed on the entire back surface of the.
【００１４】また、この蓄熱材封入体２の裏側に断熱材
を配するが、ソーラバッテリーに接続する面状ヒータを
介在させても良い。Although a heat insulating material is arranged on the back side of the heat storage material enclosure 2, a sheet heater connected to the solar battery may be interposed.
【００１５】図中符号６は取付支柱である。Reference numeral 6 in the drawing denotes a mounting column.
【００１６】本実施例の蓄熱材封入体２内に封入する蓄
熱材としては酢酸ナトリウム水溶液ｓを使用する。A sodium acetate aqueous solution s is used as the heat storage material sealed in the heat storage material enclosure 2 of this embodiment.
【００１７】この酢酸ナトリウム水溶液ｓは、本実施例
では水１ccに対して酢酸ナトリウムを１ｇ乃至２ｇの比
で溶解して酢酸ナトリウム水溶液ｓを生成している。In this embodiment, the sodium acetate aqueous solution s is prepared by dissolving sodium acetate in 1 cc of water at a ratio of 1 g to 2 g to form the sodium acetate aqueous solution s.
【００１８】この酢酸ナトリウム水溶液ｓの融点は測定
の結果約−１４℃で、氷点下の広範囲で液相が確保さ
れ、水とほぼ同様な前記顕熱蓄熱作用が発揮されること
が実証された。The melting point of this sodium acetate aqueous solution s was measured to be about -14 ° C, and it was proved that a liquid phase was secured in a wide range below freezing point and that the sensible heat storage effect similar to that of water was exhibited.
【００１９】しかも、この酢酸ナトリウム水溶液ｓは弱
アルカリ性であるため、還元作用により仮に酢酸ナトリ
ウム水溶液ｓが道路反射鏡内部に漏れ出ても鏡面板１や
裏板４などが錆にくい。Moreover, since the sodium acetate aqueous solution s is weakly alkaline, even if the sodium acetate aqueous solution s leaks into the road reflector due to the reducing action, the mirror plate 1 and the back plate 4 are unlikely to rust.
【００２０】また、酢酸ナトリウム水溶液ｓは人体に全
く無害と言えるので、たとえ酢酸ナトリウム水溶液ｓが
外部へ漏れ出ても心配なく安全性が高い。Further, since the sodium acetate aqueous solution s can be said to be completely harmless to the human body, even if the sodium acetate aqueous solution s leaks to the outside, there is no worry and the safety is high.
【００２１】また、酢酸ナトリウムは非常に水に溶け易
く、容易に入手可能な物質であるため、製作が容易とな
り、量産性に秀れた曇り防止機能付の道路反射鏡とな
る。Further, since sodium acetate is a substance that is very easily soluble in water and is easily available, it is easy to manufacture, and it becomes a road reflector with an anti-fog function which is excellent in mass productivity.
【００２２】[0022]
【発明の効果】本発明は上述のように使用する蓄熱材を
酢酸ナトリウム水溶液としたから、アルカリ性を有する
故に漏れ出ても鏡面板や裏板などが錆にくく、しかも、
酢酸ナトリウム水溶液は人体に全く無害と言えるので、
たとえ酢酸ナトリウム水溶液が外部へ漏れ出ても心配な
く安全性が極めて高く、この酢酸ナトリウム水溶液の生
成も容易であるので極めて量産性に秀れるなど実用性に
秀れた画期的な道路反射鏡となる。According to the present invention, since the heat storage material used is an aqueous sodium acetate solution as described above, the mirror surface plate and the back plate are resistant to rust even if they leak due to their alkalinity.
Since it can be said that the sodium acetate aqueous solution is completely harmless to the human body,
Even if the sodium acetate aqueous solution leaks outside, there is no worry and the safety is extremely high. Since this sodium acetate aqueous solution can be easily generated, it is a revolutionary road reflector that is extremely practical and extremely practical. Becomes
【図１】本実施例の分解斜視図である。FIG. 1 is an exploded perspective view of the present embodiment.
【図２】本実施例の断面図である。FIG. 2 is a sectional view of the present embodiment.
１ 鏡面板 ２ 蓄熱封入体 ３ 断熱材 ４ 裏板 1 Mirror surface plate 2 Heat storage enclosure 3 Heat insulating material 4 Back plate
Claims (1)
封入した柔軟性を有する蓄熱封入体を配設し、この蓄熱
材封入体の裏側に断熱材を介して裏板を付設したことを
特徴とする道路反射鏡。1. A flexible heat storage enclosure filled with an aqueous sodium acetate solution is provided on the back side of the mirror surface plate, and the back board is attached to the back side of the heat storage material enclosure via a heat insulating material. Road mirror to do.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01423095A JP3628364B2 (en) | 1995-01-31 | 1995-01-31 | Road reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01423095A JP3628364B2 (en) | 1995-01-31 | 1995-01-31 | Road reflector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08209636A true JPH08209636A (en) | 1996-08-13 |
| JP3628364B2 JP3628364B2 (en) | 2005-03-09 |
Family
ID=11855278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01423095A Expired - Lifetime JP3628364B2 (en) | 1995-01-31 | 1995-01-31 | Road reflector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3628364B2 (en) |
-
1995
- 1995-01-31 JP JP01423095A patent/JP3628364B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP3628364B2 (en) | 2005-03-09 |
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