JPS59145808A - Cloudiness-proof road mirror - Google Patents

Cloudiness-proof road mirror

Info

Publication number
JPS59145808A
JPS59145808A JP58018807A JP1880783A JPS59145808A JP S59145808 A JPS59145808 A JP S59145808A JP 58018807 A JP58018807 A JP 58018807A JP 1880783 A JP1880783 A JP 1880783A JP S59145808 A JPS59145808 A JP S59145808A
Authority
JP
Japan
Prior art keywords
mirror
cloudiness
road mirror
proof road
mirror surface
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.)
Pending
Application number
JP58018807A
Other languages
Japanese (ja)
Inventor
中島　磯「きち」
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan National Railways
Nippon Kokuyu Tetsudo
Original Assignee
Japan National Railways
Nippon Kokuyu Tetsudo
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Japan National Railways, Nippon Kokuyu Tetsudo filed Critical Japan National Railways
Priority to JP58018807A priority Critical patent/JPS59145808A/en
Publication of JPS59145808A publication Critical patent/JPS59145808A/en
Pending legal-status Critical Current

Links

Landscapes

  • Road Signs Or Road Markings (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 現在、道路の交差点、曲路などに広く使用されている道
路鏡は自動車〜運転の安全を確保するための必須の設備
であるが、気象条件によっては表面に＊、ｂを生じ、そ
の機能を発指し得ない場合がある。つまシ、早朝、太陽
が昇シ、地温が急上昇し、水蒸気を多く含んだ空気が発
生し、この高湿度の空気がまだ温度の低い道路鏡の鏡面
に接触すると、・その温度差から結露現象が起り、鏡面
に小水滴つまシ曇シが生ずる。この現象を防止するため
の機構が本発明である。以下に詳細に説明する。[Detailed Description of the Invention] Currently, road mirrors, which are widely used at road intersections, curved roads, etc., are essential equipment for ensuring the safety of automobiles and driving. b, and the function cannot be expressed. Early in the morning, the sun rises, the ground temperature rises rapidly, and air containing a lot of water vapor is generated. When this highly humid air comes into contact with the still-cool mirror surface of a road mirror, condensation occurs due to the temperature difference. This causes small water droplets to form on the mirror surface. The present invention is a mechanism for preventing this phenomenon. This will be explained in detail below.

上述のように曇シの発生は温度差の大きい固体と大気と
の接点で結露し、しかもその゛水滴が鏡表面で乱反射現
象を起す程度の量まで鏡表面で発生し留まる現象である
から、この乱反射を防止するための方法としては、鏡表
面における水滴の発生量を少くするか、または発生した
水滴ができるだけ表面に均一に広がシ、乱反射の起らな
いようにする必要がある。この際、水滴の発生量は高湿
度の大気が鏡表面で奪われる水蒸気の気化潜熱に関係す
るから、鏡体全体の熱容量が不変ならば、鏡表面を通る
熱量をできるだけ小にする必要があシ、具体的には鏡表
面の材料を熱伝導性の小さいものにする必要がある。As mentioned above, fogging occurs when dew condenses at the point of contact between a solid object and the atmosphere where there is a large temperature difference, and the water droplets form and remain on the mirror surface in such an amount that they cause diffuse reflection on the mirror surface. In order to prevent this diffused reflection, it is necessary to reduce the amount of water droplets generated on the mirror surface, or to spread the generated water droplets as uniformly over the surface as possible to prevent diffused reflection. At this time, the amount of water droplets generated is related to the latent heat of vaporization of the water vapor absorbed by the mirror surface from the highly humid atmosphere, so if the heat capacity of the entire mirror remains unchanged, it is necessary to minimize the amount of heat passing through the mirror surface. Specifically, it is necessary to use a material for the mirror surface that has low thermal conductivity.

以上の＃にシ防止の原理を具体的な構造にしたものを図
によって説明する。A concrete structure based on the above principle of prevention will be explained with reference to the drawings.

図は本発明による道路鏡の鐘部の縦断面図である。通゛
常の金属鏡またはガラス裏面に金属薄膜を付着させたガ
ラス鏡からなる鏡体ｌの光反射側っ具体的な親水化処理
法の例としては０．／Ｔｏｒｒ程度の真空下で１０，０
００Ｈ２程度の高周波電圧を加圧し、処理ガスとしては
炭酸ガスを使用する低温プラズマ法が適当であるが、そ
の他、各種の表面親水化処支持枠Ｓに納め、さらにこれ
に支持体り等を付けて道路わきに設置するわけであるが
、この□際支持枠Ｓは図に示したように鏡体裏側と大気
との接触と熱交換が十分性われるようできるだけ開放構
造とするのが望ましく、図に示した開口６はその目的で
設けたものである。The figure is a longitudinal sectional view of the bell portion of the road mirror according to the present invention. A specific example of a hydrophilic treatment method for the light-reflecting side of a mirror body 1, which is an ordinary metal mirror or a glass mirror with a metal thin film attached to the back surface of the glass, is 0. /10,0 under a vacuum of about Torr
A low-temperature plasma method in which a high-frequency voltage of about 00H2 is applied and carbon dioxide is used as the processing gas is suitable, but in addition, various types of surface hydrophilic treatment can be carried out in a support frame S and further attached with a support. However, as shown in the figure, it is desirable that the support frame S has an open structure as much as possible to ensure sufficient contact and heat exchange between the back side of the mirror and the atmosphere, as shown in the figure. The opening 6 shown in is provided for this purpose.

なお本構造の道路鏡は表面にプラスチックの層を有する
ため、投石等による破壊行為に対しても強いという特徴
がある。Furthermore, since the road mirror of this structure has a plastic layer on its surface, it is resistant to vandalism such as stone throwing.

【図面の簡単な説明】[Brief explanation of the drawing]

口、り・・・支持体 指定代理人　日本国有鉄道総裁室法務課長関場大資 Mouth, lip... support Designated Agent: Daisuke Sekiba, Director, Legal Affairs Division, Office of the President of Japanese National Railways

Claims (1)

【特許請求の範囲】[Claims] 金属鏡またはガラス鏡からなる鏡体の表面に透明度の高
いプラスチックフィルムを接着し、かつそのプラスチッ
クフィルムの表面に親水化処理を施す事によシ鏡表面の
曇シの発生を防止したことを特徴とする曇シ防止道路鏡
。A highly transparent plastic film is adhered to the surface of a mirror body consisting of a metal mirror or glass mirror, and the surface of the plastic film is subjected to hydrophilic treatment to prevent fogging on the mirror surface. Anti-fog road mirror.
JP58018807A 1983-02-09 1983-02-09 Cloudiness-proof road mirror Pending JPS59145808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58018807A JPS59145808A (en) 1983-02-09 1983-02-09 Cloudiness-proof road mirror

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58018807A JPS59145808A (en) 1983-02-09 1983-02-09 Cloudiness-proof road mirror

Publications (1)

Publication Number Publication Date
JPS59145808A true JPS59145808A (en) 1984-08-21

Family

ID=11981859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58018807A Pending JPS59145808A (en) 1983-02-09 1983-02-09 Cloudiness-proof road mirror

Country Status (1)

Country Link
JP (1) JPS59145808A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09228326A (en) * 1995-12-22 1997-09-02 Toto Ltd Defogging road mirror and its defogging method
JP2007039012A (en) * 2005-06-28 2007-02-15 Murakami Corp Method for draining water deposited on lower portion of mirror surface, and mirror having draining device
JP2007247166A (en) * 2006-03-14 2007-09-27 Sumitomo Chemical Co Ltd Road mirror

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS448066Y1 (en) * 1966-09-30 1969-03-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS448066Y1 (en) * 1966-09-30 1969-03-27

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09228326A (en) * 1995-12-22 1997-09-02 Toto Ltd Defogging road mirror and its defogging method
JP2007039012A (en) * 2005-06-28 2007-02-15 Murakami Corp Method for draining water deposited on lower portion of mirror surface, and mirror having draining device
JP2007247166A (en) * 2006-03-14 2007-09-27 Sumitomo Chemical Co Ltd Road mirror

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