JPH0216207A - Road reflecting mirror with haze preventer - Google Patents
Road reflecting mirror with haze preventerInfo
- Publication number
- JPH0216207A JPH0216207A JP63165573A JP16557388A JPH0216207A JP H0216207 A JPH0216207 A JP H0216207A JP 63165573 A JP63165573 A JP 63165573A JP 16557388 A JP16557388 A JP 16557388A JP H0216207 A JPH0216207 A JP H0216207A
- Authority
- JP
- Japan
- Prior art keywords
- reflector
- road
- reflecting mirror
- container
- 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
- 238000005338 heat storage Methods 0.000 claims abstract description 15
- 239000011232 storage material Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 3
- 238000007710 freezing Methods 0.000 abstract description 2
- 230000008014 freezing Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000002528 anti-freeze Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
Abstract
Description
【発明の詳細な説明】
イ）産業上の利用分野
本発明は、道路の見通しの悪い場所に設ける道路反射鏡
の改良に関する０本発明は、寒冷時もしくは極めて湿度
の高い時に生じる反射鏡の曇りを防止する仕り防止装置
の付いた道路反射鏡に関するものである。DETAILED DESCRIPTION OF THE INVENTION A) Field of Industrial Application The present invention relates to the improvement of road reflectors installed in places with poor visibility on roads. This invention relates to a road reflector equipped with an anti-bending device that prevents this from occurring.
口）従来の技術
道路反射鏡は道路の見通しの悪い箇所に設けられる安全
装置でああるが、寒冷時に曇って機能を失うことが多く
、道路交通の危険を生じるため、その解決が強く望まれ
ている。(1) Conventional technology Road reflectors are a safety device installed in places with poor visibility on roads, but they often become cloudy and lose their function in cold weather, creating a danger to road traffic, so a solution to this problem is strongly desired. ing.
道路反射鏡の曇る主要な原因は、放射冷却により、鏡面
が周囲の空気の露点より低温になり、鏡面に水滴もしく
は氷粒が付着することにある。The main cause of fogging on road reflectors is that radiative cooling causes the mirror surface to become colder than the dew point of the surrounding air, and water droplets or ice particles adhere to the mirror surface.
道路反射鏡の曇り防止には鏡面が周辺の空気より低温に
ならないようにすれば良く、電熱等によって加熱する方
式のものが古くから製造されているが維持費が高く、又
、設置場所の制限を受けるところから、特別に重要な箇
所を除き、あまり使われていない。In order to prevent road reflectors from fogging up, it is necessary to prevent the mirror surface from becoming colder than the surrounding air, and models that heat with electric heat have been manufactured for a long time, but maintenance costs are high and there are restrictions on where they can be installed. Due to its popularity, it is not used much except in particularly important places.
最近、放射冷却による鏡面を冷却による鏡面の冷却を少
なくするため、鏡面の上方に設けるカバーや庇を大きく
したものが作られ始めている。Recently, in order to reduce the cooling of the mirror surface by radiation cooling, devices with larger covers or eaves installed above the mirror surface have begun to be manufactured.
また、特開昭６２−２５３８０８号では上記の庇を大き
くしたものに加え、鏡面の背面にグラスウール等の断熱
材を装着し、外気と断熱することにより鏡面の温度低下
を軽減するもの等多くの提案がなされている。In addition to the above-mentioned version with a larger eave, JP-A No. 62-253808 also introduces a number of other methods, including one that reduces the temperature drop on the mirror surface by attaching an insulating material such as glass wool to the back of the mirror surface and insulating it from the outside air. Suggestions have been made.
しかしながら、上記のものは反射鏡の視角が小さくなる
ため、設置する際の位置決めが難しい問題点があり、ま
た事故により変形すると修正が困難であるとか、カバー
や庇の空気抵抗が大きいため、全体、を丈夫に作る必要
があり、かなりコスト高になる等の問題点がある。However, with the above, the viewing angle of the reflector is small, making it difficult to position the reflector when installing it. Also, if it becomes deformed due to an accident, it is difficult to correct it, and the air resistance of the cover and eaves is large, so the overall , it is necessary to make it durable, which poses problems such as considerably high cost.
更に実際の使用において曇り防止効果が十分でな（、本
発明者等の実験によると、１０日間の実験で３日間鏡面
に結露または結氷（霜）が付着し、道路反射鏡としての
機能を十分果たさないことが判明しいている。Furthermore, in actual use, the anti-fogging effect is insufficient (according to experiments conducted by the present inventors, dew or ice (frost) adheres to the mirror surface for 3 days in a 10-day experiment, making it difficult to function as a road reflector). It is clear that it will not work.
この間の最低気温の最低は−１，２°Ｃ１最高気温の最
高は１６．２℃であった。The lowest minimum temperature during this period was -1.2°C, and the highest maximum temperature was 16.2°C.
ハ）発明が解決しようとする問題点
本発明者等は、従来の曇り防止装置付きの道路反射鏡が
視角が狭く、高コストである問題点及び曇り防止効果の
不十分な点を解決することを目的として、種々実験を行
ない、道路反射鏡の鏡面を相対的に暖めることが必要と
の知見を得て、その効率的な方法に到達し、本発明に至
った。C) Problems to be Solved by the Invention The present inventors have solved the problems that conventional road reflectors with anti-fog devices have narrow viewing angles, are expensive, and have insufficient anti-fog effects. For this purpose, various experiments were conducted and it was discovered that it is necessary to relatively warm the mirror surface of a road reflector, and an efficient method for doing so was arrived at, resulting in the present invention.
二）問題点を解決する手段
本発明は反Ｑｔ鏡の背面に蓄熱装置を設けたことを特徴
とする曇り防止装置付道路反射鏡である。2) Means for Solving the Problems The present invention is a road reflector with an anti-fog device, characterized in that a heat storage device is provided on the back side of the anti-Qt mirror.
本発明を更に詳細に実施例を上げながら説明する。The present invention will be explained in more detail with reference to examples.
蓄熱装置の主要部を構成する蓄熱材料としては相転移を
利用するものであっても、顕熱な蓄積するものであって
も良いが加工性の点で温暖時に液体であるものが好まし
い、このような蓄熱材料としては、水あるいは不凍液（
水？８液を含む）、更には室温よりも低温で凝固するパ
ラフィン等が安価で使い易い。The heat storage material that constitutes the main part of the heat storage device may be one that utilizes phase transition or one that accumulates sensible heat, but from the viewpoint of processability, it is preferable to use one that is liquid at warm temperatures. Water or antifreeze (
water? Paraffin, which solidifies at a temperature lower than room temperature, is inexpensive and easy to use.
蓄熱材料は袋に入れるか、反射鏡の裏面に密着する箱に
入れて反射鏡の背面に取りつける６反ｑｔ鏡の方に熱が
伝わりすぎて短時間に放熱しないように蓄熱材料の容器
と反射鏡の間に薄い緩衝層を設けることもある。Place the heat storage material in a bag or in a box that is tightly attached to the back of the reflector and attach it to the back of the reflector.In order to prevent heat from being transferred to the 6-reflector mirror and dissipating it in a short period of time, place the heat storage material in a container and the reflector. Sometimes a thin buffer layer is placed between the mirrors.
次ぎに本発明の実施態様の一つを第１図によって説明す
る。Next, one embodiment of the present invention will be explained with reference to FIG.
第１図は本発明の道路反射鏡の垂直中心線を含む断面図
である１図には反射鏡を取り付ける磯構を省略しである
。１１（１）の背面に密着して蓄熱材料（２）を入れる
容器（３）を設けこれを反射鏡の裏ブタ（４）で固定す
る。FIG. 1 is a sectional view including the vertical center line of the road reflecting mirror of the present invention. In FIG. 1, the rocky structure on which the reflecting mirror is attached is omitted. A container (3) for holding the heat storage material (2) is provided in close contact with the back surface of the mirror 11 (1) and is fixed with a back cover (4) of the reflector.
第１図に示す道路反射鏡を支柱に取り付ける。境は丸型
、角型等形状も種々あり、また、大きさも通常直径６０
０ ｍｍ 、 ８００ ｍｍ 、 １００１１ ｍｍ
等あるが、例えば直径６００開の鏡を使用する場合、蓄
熱材容量６，５βのプラスチック袋又はゴム製の袋を境
の背面と裏ブタとの間に空間部を設けて取りつけ、この
袋体等の容器内に氷点−２０’Ｃの不凍液を充填する６
以上のような構成による反射鏡を設置すると、昼間に反
射鏡の境面及び背面の裏ブタを通して太陽熱で暖められ
た蓄熱材料が熱を早朝まで保持し、早朝の放射冷却時に
も鏡面を気温以上に保ち、鏡面の伝りを防止する。Attach the road reflector shown in Figure 1 to the support. The border has various shapes such as round and square, and the size is usually 60 mm in diameter.
0mm, 800mm, 10011mm
For example, when using a mirror with a diameter of 600mm, attach a plastic bag or rubber bag with a heat storage material capacity of 6.5β with a space between the back side of the boundary and the back cover, and then attach the bag body. Fill antifreeze with a freezing point of -20'C into a container such as 6.
When a reflector with the above configuration is installed, the heat storage material heated by solar heat during the day through the boundary surface of the reflector and the back cover on the back retains heat until early morning, and even during early morning radiation cooling, the mirror surface remains above the temperature. to prevent mirror surface scratches.
本発明の道路反射鏡と反射鏡の背面に断熱材を使用し、
鏡体上端部に庇を太き（した曇り防止装置付道路反射鏡
（以下Ａ社製という）を比較試験した状況を第２図に示
す。Using a heat insulating material on the back surface of the road reflector and reflector of the present invention,
Figure 2 shows a comparative test of a road reflector with an anti-fogging device (hereinafter referred to as manufactured by Company A) with a thick eave at the upper end of the mirror body.
第２図に示す通り１０日間の観測は毎朝６時３０分に鏡
面温度及びその時の気温を記録しグラフ化したものであ
り、本発明の反射鏡表面温度は観測期間全期間に亘たっ
てＡ社製反！ｌ１寸鏡表面の温度より高く、また気温よ
りも高い温度を示している。また、本発明の反射鏡は気
温がマイナスを示す鏡面が曇りやすい日はど気温との差
が大きい、一方、Ａ社製の反ａ＝を鏡は気温とほぼ同様
の鏡面温度を示しその差もわずかであり、時として気温
より低い温度を示すことがある１以上の観測結果より本
発明の反射鏡は極めて有効な曇り防止効果を示している
。As shown in Figure 2, the 10-day observation was made by recording the mirror surface temperature and the air temperature at that time at 6:30 every morning and making a graph. Fabric production! The temperature is higher than the surface temperature of the 11-inch mirror, and higher than the air temperature. In addition, the reflective mirror of the present invention has a large difference in temperature on days when the mirror surface shows negative temperature and is prone to cloudy weather, while the mirror made by Company A shows a mirror surface temperature that is almost the same as the air temperature, and there is a difference in the mirror surface temperature. The reflector of the present invention has shown an extremely effective anti-fogging effect, based on one or more observational results that sometimes show a temperature lower than the air temperature.
また写真−１には上記の本発明に反射Ｗ（ｂ）とＡ社製
の反射鏡（ａ）を同一条件でテストした写真を示してい
るが、これでも鏡面の曇り状況の差は明らかである。尚
、この写真撮影時の気温は１０００℃、直前の最高気温
１６．０℃。In addition, Photo 1 shows a photo of the reflector W (b) according to the invention described above and the reflector (a) made by Company A tested under the same conditions, but even in this photo, the difference in the cloudiness of the mirror surface is clear. be. The temperature at the time this photo was taken was 1000 degrees Celsius, and the highest temperature just before was 16.0 degrees Celsius.
最低気温９．０℃、Ａ社製の反射鏡鏡面温度ｌ０８２℃
、本発明の 反射鏡鏡面温度１Ｏ９６°Ｃであった。Minimum temperature 9.0℃, reflector surface temperature made by company A 1082℃
, the reflective mirror surface temperature of the present invention was 1O96°C.
ホ）発明の作用及び効果
本発明は道路の見通しの悪い場所に設ける道路反射鏡の
改良に関するもので、寒冷時等に生じる反射鏡の曇りを
防止して常に道路反射鏡の機能を果たさしめ、道路交通
の安全性向上に寄与することのできるものである。従来
、道路反射鏡の曇り防止については種々のものが使用さ
れて米ているがいづれも曇り防止効果が十分でなく、寒
冷時等に支障を来していたが、本発明では反射鏡の背面
に蓄熱材料を装着又は収容するという簡易な機構でこの
問題を解決した。その結果、従来の庇を大きくしたり、
断熱材を使用するものに比べ格段にその効果を増大する
こは蓄熱材を入れる容器、
（４＞は反Ｑｔ ｉ！Ｑの裏ブタ
である。E) Functions and Effects of the Invention The present invention relates to an improvement of a road reflector installed in a place with poor visibility on the road, which prevents the reflector from fogging that occurs in cold weather and always fulfills the function of the road reflector. It can contribute to improving road traffic safety. Conventionally, various products have been used to prevent fogging on road reflectors, but none of them have sufficient anti-fogging effects, causing problems in cold weather.However, in the present invention, the back surface of the reflector This problem was solved with a simple mechanism in which a heat storage material is attached or housed in the housing. As a result, the traditional eaves were made larger,
What greatly increases the effect compared to those that use heat insulating material is the container that holds the heat storage material. (4> is the back lid of anti-Qt i!Q.
Claims (1)
防止装置付き道路反射鏡A road reflector with an anti-fog device, characterized by a heat storage device installed on the back of the reflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63165573A JPH0216207A (en) | 1988-07-02 | 1988-07-02 | Road reflecting mirror with haze preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63165573A JPH0216207A (en) | 1988-07-02 | 1988-07-02 | Road reflecting mirror with haze preventer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0216207A true JPH0216207A (en) | 1990-01-19 |
| JPH0584764B2 JPH0584764B2 (en) | 1993-12-03 |
Family
ID=15814928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63165573A Granted JPH0216207A (en) | 1988-07-02 | 1988-07-02 | Road reflecting mirror with haze preventer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0216207A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0670832A (en) * | 1992-05-01 | 1994-03-15 | Katsumasa Fujii | Road reflection mirror with antifogging function |
| JPH06173224A (en) * | 1992-10-01 | 1994-06-21 | Katsumasa Fujii | Herring bone for displaying road boundary in snowfall area |
| FR2884837A1 (en) * | 2005-04-26 | 2006-10-27 | Jean Francois Lenoir | Mirror panel for e.g. by-road intersection, has sensor system automatically controlling heating wire supply when ambient temperature is above given temperature and/or humidity is over given hygrometric percentage, to de-ice or demist mirror |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48101587U (en) * | 1972-03-02 | 1973-11-29 | ||
| JPS5919122U (en) * | 1982-07-28 | 1984-02-06 | 安田 繁之 | Anka for thermotherapy |
| JPS6050210U (en) * | 1983-09-12 | 1985-04-09 | 積水化成品工業株式会社 | road traffic mirror |
| JPS61127358U (en) * | 1985-01-30 | 1986-08-09 | ||
| JPS61198901U (en) * | 1985-05-31 | 1986-12-12 | ||
| JPS62172302A (en) * | 1986-01-24 | 1987-07-29 | Matsushita Refrig Co | Road reflector |
| JPS63167803A (en) * | 1986-12-29 | 1988-07-11 | 有限会社 ゴトウ熔接 | Curve mirror |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5919122B2 (en) * | 1976-10-12 | 1984-05-02 | 味の素株式会社 | Water-soluble partially deacetylated chitin and its production method |
| JPS6050210B2 (en) * | 1978-01-18 | 1985-11-07 | 住友化学工業株式会社 | Manufacturing method of glass fiber reinforced resin board |
-
1988
- 1988-07-02 JP JP63165573A patent/JPH0216207A/en active Granted
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48101587U (en) * | 1972-03-02 | 1973-11-29 | ||
| JPS5919122U (en) * | 1982-07-28 | 1984-02-06 | 安田 繁之 | Anka for thermotherapy |
| JPS6050210U (en) * | 1983-09-12 | 1985-04-09 | 積水化成品工業株式会社 | road traffic mirror |
| JPS61127358U (en) * | 1985-01-30 | 1986-08-09 | ||
| JPS61198901U (en) * | 1985-05-31 | 1986-12-12 | ||
| JPS62172302A (en) * | 1986-01-24 | 1987-07-29 | Matsushita Refrig Co | Road reflector |
| JPS63167803A (en) * | 1986-12-29 | 1988-07-11 | 有限会社 ゴトウ熔接 | Curve mirror |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0670832A (en) * | 1992-05-01 | 1994-03-15 | Katsumasa Fujii | Road reflection mirror with antifogging function |
| JPH06173224A (en) * | 1992-10-01 | 1994-06-21 | Katsumasa Fujii | Herring bone for displaying road boundary in snowfall area |
| FR2884837A1 (en) * | 2005-04-26 | 2006-10-27 | Jean Francois Lenoir | Mirror panel for e.g. by-road intersection, has sensor system automatically controlling heating wire supply when ambient temperature is above given temperature and/or humidity is over given hygrometric percentage, to de-ice or demist mirror |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0584764B2 (en) | 1993-12-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
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