JPH0722364Y2 - Water drop remover for mirror - Google Patents
Water drop remover for mirrorInfo
- Publication number
- JPH0722364Y2 JPH0722364Y2 JP1988113299U JP11329988U JPH0722364Y2 JP H0722364 Y2 JPH0722364 Y2 JP H0722364Y2 JP 1988113299 U JP1988113299 U JP 1988113299U JP 11329988 U JP11329988 U JP 11329988U JP H0722364 Y2 JPH0722364 Y2 JP H0722364Y2
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- water
- water droplets
- water drop
- repellent coating
- 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.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 35
- 239000005871 repellent Substances 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 9
- 239000011521 glass Substances 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000002940 repellent Effects 0.000 description 2
- 229910020637 Co-Cu Inorganic materials 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は車両用バックミラーのごときミラーの水滴除去
装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a water drop removing device for a mirror such as a vehicle rearview mirror.
［従来の技術］ 従来、降雨中の走行や停車によりバックミラーに水滴が
付着したとき、後方視認が不十分となり、自動車の走行
安全性に問題があった。これを防ぐためミラー表面に撥
水性被膜を施し、表面に付着する水滴の表面張力を小さ
くして風圧により、またはミラー上部からの流体吹付け
・流出により水滴を除去したり、ミラー表面あるいは裏
面に形成させた発熱層（ヒータ）に通電して水滴を除去
したりすることが知られている（実開昭54-11452号、同
54-11453号および実開昭55-167863号公報）。[Prior Art] Conventionally, when water droplets adhere to the rearview mirror due to running or stopping during rain, the rearward visibility becomes insufficient, and there is a problem in running safety of the vehicle. To prevent this, a water-repellent coating is applied to the mirror surface to reduce the surface tension of water droplets attached to the surface and remove water droplets by wind pressure or by spraying / outflowing fluid from the top of the mirror. It is known that the formed heat generating layer (heater) is energized to remove water droplets (Actual No. 54-11452, same).
54-11453 and Japanese Utility Model Laid-Open No. 55-167863).
また超音波振動を利用してミラー表面の水滴を振い落
し、あるいは霧化・飛散させることも提案されている
（特公昭38-9505号、実開昭49-45225号および同53-3314
4号公報）。It has also been proposed to use ultrasonic vibration to shake off water droplets on the mirror surface, or to atomize / scatter them (Japanese Patent Publication No. 38-9505, Japanese Utility Model Publication No. 49-45225, and No. 53-3314).
No. 4).
［考案が解決しようとする問題点］ バックミラー表面に撥水性被膜を施し、風圧・流体等で
水滴を除去するものや、ヒータで水滴を除去するもの
は、水滴除去までに時間がかゝり、液体流下式のものは
装置全体が複雑となる。一方、超音波振動のみを利用し
たものは、非常に部分的であり、ミラーの表面状態（油
分の付着・ヌレ性）に大きく左右されるため、未だ実用
化されるに至っていない。[Problems to be solved by the invention] A water-repellent coating on the rear-view mirror surface that removes water droplets by wind pressure, fluid, etc., or a heater that removes water droplets requires a long time to remove water droplets. The liquid flow-down type complicates the entire apparatus. On the other hand, the one using only ultrasonic vibration is very partial and greatly affected by the surface condition of the mirror (adhesion of oil content / wetting property), and therefore has not yet been put to practical use.
本考案は、ミラーの表面状態に影響されずに比較的速や
かに、ミラー全面にわたり水滴を除去できる装置を提供
することを目的としている。It is an object of the present invention to provide a device capable of removing water droplets over the entire surface of a mirror relatively quickly without being affected by the surface condition of the mirror.
［課題を解決するための手段］ 上記目的を達成するため、水滴とミラー表面との接触面
積を小さくする撥水性被膜を施したミラーの裏面に、該
ミラーより小さい圧電振動子を貼設し、前記ミラーに該
ミラーの周辺に向かう屈曲波振動を生じせしめて水滴除
去してなることを特徴とする。[Means for Solving the Problems] In order to achieve the above object, a piezoelectric vibrator smaller than the mirror is attached to the back surface of the mirror provided with a water-repellent coating that reduces the contact area between water droplets and the mirror surface, It is characterized in that bending water vibration is generated in the mirror toward the periphery of the mirror to remove water droplets.
撥水性被膜としては、フッ素樹脂、シリコーン等が用い
られる。圧電振動子としては、BaTiO3やPbTiO3‐PbZrO3
系多結晶体（アメリカ、クレバイト社商標PZT）よりな
る圧電体セラミックスあるいはNi-Co-Cuフエライトのご
とき磁歪振動子が用いられる。As the water-repellent coating, fluororesin, silicone or the like is used. As a piezoelectric vibrator, BaTiO 3 or PbTiO 3 -PbZrO 3
Magnetostrictive oscillators such as piezoelectric ceramics or Ni-Co-Cu ferrite, which are made of a system polycrystal (trademark PZT, manufactured by Clevite Co., USA) are used.
［作用］ 撥水性被膜を施したミラーは裏面に貼設した圧電振動子
により屈曲波振動が与えられる。圧電振動子はミラーよ
り小さいので屈曲波振動はミラー周囲に向かって進行す
る様になる。これによりミラー表面に付着した水滴は急
速、かつ、ミラー全面にわたり、ミラーの表面状態にか
かわらず水滴除去が可能になる。[Function] A mirror having a water-repellent coating is subjected to bending wave vibration by a piezoelectric vibrator attached to the back surface. Since the piezoelectric vibrator is smaller than the mirror, the bending wave vibration will proceed toward the periphery of the mirror. As a result, water droplets attached to the mirror surface can be rapidly removed over the entire surface of the mirror regardless of the surface state of the mirror.
このように撥水性被膜を施したミラーに屈曲波振動を与
えるとミラーの表面状態にかかわらず水滴が除去できる
理由は、単に屈曲波振動のみの場合は屈曲波振動におけ
る「節」（一般に定常的な励振を行った場合には振幅の
大きい「腹」と振幅の小さい「節」を有する定在波が生
じる）の所に水滴が止まる（溜る）のに対し、本考案で
は屈曲波がミラー周辺に進行する進行波なので、当該進
行波の進行に水滴は屈曲波の進行方向に力を受けるため
である。この移動に際して、水滴は撥水性被膜が施され
ているので、散らばることがなく雪だるま式に周囲の水
滴を取り込みながら進む。もし所定の重さがになると重
力の力により自然落下するが、自然落下できないものは
上記プロセスを経て成長しながらミラー周辺に運ばれる
ので、ミラーの表面状態に関係なく水滴を除去すること
が可能になる。The reason why water droplets can be removed regardless of the surface state of the mirror by applying bending wave vibration to a mirror coated with a water-repellent coating is that the "node" (generally steady When a strong excitation is performed, a standing wave with a large amplitude "belly" and a small amplitude "node" is generated. This is because the traveling wave travels in the direction of, and the water droplet receives a force in the traveling direction of the bending wave as the traveling wave progresses. At the time of this movement, the water droplets are coated with a water-repellent film, so that the water droplets do not scatter, and proceed while taking in the surrounding water droplets. If the specified weight becomes, it will fall naturally due to the force of gravity, but if it cannot fall naturally, it will be carried around the mirror while growing through the above process, so it is possible to remove water droplets regardless of the surface state of the mirror. become.
［実施例］ 次に図面に基づいて本考案を具体的に説明する。第１図
は本考案ミラーの水滴除去装置の背面図、第２図は同じ
く横断面図である。[Embodiment] Next, the present invention will be specifically described with reference to the drawings. FIG. 1 is a rear view of the water drop removing apparatus of the mirror of the present invention, and FIG. 2 is a transverse sectional view of the same.
図に示すようにミラーガラス１の表面にフッ素樹脂、シ
リコーンなどの撥水剤による被膜２を施し、裏面に圧電
振動子３を貼着したのち、ミラーガラス周辺および圧電
振動子３を含む裏面にミラーホルダー４を被着する。圧
電振動子３は電源６、操作スイッチ７、発振回路８およ
び増幅器９を介して駆動される。As shown in the figure, after coating the surface of the mirror glass 1 with a water repellent such as fluororesin or silicone, and attaching the piezoelectric vibrator 3 to the back surface, the periphery of the mirror glass and the back surface including the piezoelectric vibrator 3 are attached. Put on the mirror holder 4. The piezoelectric vibrator 3 is driven via a power supply 6, an operation switch 7, an oscillation circuit 8 and an amplifier 9.
圧電振動子として、例えばPZT系の圧電体セラミックス
を用い、ミラーガラスの板厚、材質などによって決定さ
れる共振周波数で屈曲波振動を起させる。As the piezoelectric vibrator, for example, PZT-based piezoelectric ceramics is used, and bending wave vibration is generated at a resonance frequency determined by the plate thickness and material of the mirror glass.
雨中車両走行または停車時にバックミラーにかかった水
滴は撥水性被膜２により、下方に流下し飛散させる。降
雨が激しくミラーガラス表面に水滴12が付着したときに
は、上記操作スイッチ７を作動してミラーガラス１に屈
曲波振動を与えることにより、第２図のようにミラーガ
ラス表面の撥水性被膜２上を矢印のように移動し、ミラ
ー端で飛散させて水滴を除去し、見やすい状態にするも
のである。The water-repellent coating 2 causes the water droplets on the rear-view mirror when the vehicle is running in the rain or stopped to flow downward and scatter. When the water drops 12 adhere to the surface of the mirror glass due to heavy rainfall, the operation switch 7 is operated to give a bending wave vibration to the mirror glass 1 so that the water-repellent coating 2 on the surface of the mirror glass is moved as shown in FIG. It moves as shown by the arrow and scatters at the end of the mirror to remove water droplets, making it easier to see.
なお、上記実施例ではバックミラーについて説明した
が、その他一般のミラーに対して適用できるものであ
る。It should be noted that, although the rearview mirror has been described in the above embodiment, the present invention can be applied to other general mirrors.
［考案の効果］ 上記のように本考案は、ミラー表面に水滴が当っても撥
水性被膜により自然に流下して飛散するが、水滴が付着
して直ちに流下しないときには、圧電振動子を駆動して
屈曲波振動を与えることにより迅速に水滴を流下させ、
これによりミラー全面にわたり水滴を飛散させることが
できるので、車両走行の安全をはかることができる。[Effects of the Invention] As described above, according to the present invention, even if a water drop hits the surface of a mirror, the water-repellent coating naturally flows down and scatters. Water droplets to quickly flow down by applying bending wave vibration,
As a result, water droplets can be scattered over the entire surface of the mirror, so that the traveling of the vehicle can be safe.
第１図は本考案ミラーの水滴除去装置の裏面図、第２図
は第１図の一線における断面図である。 １……ミラーガラス、２……撥水性被膜、３……圧電振
動子、４……ミラーホルダー、６……電源、７……操作
スイッチ、８……発振回路、10……増幅器、12……水
滴。FIG. 1 is a rear view of the water drop removing device of the mirror of the present invention, and FIG. 2 is a sectional view taken along the line of FIG. 1 ... Mirror glass, 2 ... Water repellent coating, 3 ... Piezoelectric vibrator, 4 ... Mirror holder, 6 ... Power supply, 7 ... Operation switch, 8 ... Oscillation circuit, 10 ... Amplifier, 12 ... … Drops of water.
Claims (1)
る撥水性被膜を施したミラーの裏面に、該ミラーより小
さい圧電振動子を貼設し、前記ミラーに該ミラーの周辺
に向かう屈曲波振動を生じせしめて水滴除去してなるこ
とを特徴とするミラーの水滴除去装置。1. A piezoelectric wave smaller than the mirror is attached to the back surface of a mirror having a water-repellent coating for reducing the contact area between water droplets and the mirror surface, and a bending wave directed to the periphery of the mirror is attached to the mirror. A water drop removing device for a mirror, characterized in that it causes vibration to remove water drops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988113299U JPH0722364Y2 (en) | 1988-08-31 | 1988-08-31 | Water drop remover for mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988113299U JPH0722364Y2 (en) | 1988-08-31 | 1988-08-31 | Water drop remover for mirror |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0234352U JPH0234352U (en) | 1990-03-05 |
| JPH0722364Y2 true JPH0722364Y2 (en) | 1995-05-24 |
Family
ID=31353011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988113299U Expired - Lifetime JPH0722364Y2 (en) | 1988-08-31 | 1988-08-31 | Water drop remover for mirror |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0722364Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2567482Y2 (en) * | 1992-10-23 | 1998-04-02 | 積水ハウス株式会社 | Reinforcement structure of attached concrete body |
| WO2013008424A1 (en) | 2011-07-11 | 2013-01-17 | 三菱電機株式会社 | Power semiconductor module |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62191550U (en) * | 1986-05-28 | 1987-12-05 |
-
1988
- 1988-08-31 JP JP1988113299U patent/JPH0722364Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0234352U (en) | 1990-03-05 |
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