JPH0995913A - Cleaning structure of indicating surface of indicating body - Google Patents

Cleaning structure of indicating surface of indicating body

Info

Publication number
JPH0995913A
JPH0995913A JP7255895A JP25589595A JPH0995913A JP H0995913 A JPH0995913 A JP H0995913A JP 7255895 A JP7255895 A JP 7255895A JP 25589595 A JP25589595 A JP 25589595A JP H0995913 A JPH0995913 A JP H0995913A
Authority
JP
Japan
Prior art keywords
spring
memory alloy
shape memory
drive shaft
marking
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
Application number
JP7255895A
Other languages
Japanese (ja)
Other versions
JP3338742B2 (en
Inventor
Noriyuki Onishi
範行 大西
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.)
Sekisui Jushi Corp
Original Assignee
Sekisui Jushi Corp
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 Sekisui Jushi Corp filed Critical Sekisui Jushi Corp
Priority to JP25589595A priority Critical patent/JP3338742B2/en
Publication of JPH0995913A publication Critical patent/JPH0995913A/en
Application granted granted Critical
Publication of JP3338742B2 publication Critical patent/JP3338742B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To clean securely when only solar light beam is available, clean even if the outer configuration of an indicating surface is that of other than circular shapes, and makes it easier to observe indications even if letters and graphics are indicated on the indicating surface. SOLUTION: A spring 4 comprising a normal spring 3 which pulls a drive shaft 6 and a shape memory alloy and a wipe off body 7 capable of sliding on the indicating surface 1 of an indicating body are provided. Also the solar light beam collected by a condensing lens 2 is irradiated to the spring 4 made of the shape memory alloy until it is heated to a specified temperature. By this, the elasticity of the spring 4 made of the shape memory alloy is varied, the drive shaft 6 is rotated by its variation, and the rotation of the drive shaft 6 is changed into a horizontal movement. Thus the wipe off body 7 is slid on the indicating surface 1 of the indicating body.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、道路標識、視線誘
導標、看板等、屋外に設置される標示体の標示面を自動
的に清掃する標示体における標示面の清掃構造に関する
ものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a marking surface cleaning structure for automatically marking the marking surfaces of markings installed outdoors, such as road markings, line-of-sight guidance markers, and signboards.

【0002】[0002]

【従来の技術】従来、この種の清掃構造としては、例え
ば実公昭55−27685号公報に、視線誘導標の標示
面である反射鏡体の前面に風を受けて回転する複数の羽
根片を取付け、その羽根片を風力により回転させること
により、羽根片に取付けられた払拭子を反射鏡体の表面
に摺動させ、反射鏡体の表面に付着した塵や埃を払拭す
ようになされた清掃構造が記載されている。
2. Description of the Related Art Conventionally, as a cleaning structure of this type, for example, in Japanese Utility Model Publication No. Sho 55-27685, a plurality of blade pieces which rotate by receiving wind are provided on the front surface of a reflecting mirror body which is a marking surface of a visual guide marker. By attaching and rotating the blade piece by wind force, the wiper attached to the blade piece was slid on the surface of the reflecting mirror body to wipe off dust and dirt adhering to the surface of the reflecting mirror body. A cleaning structure is described.

【0003】[0003]

【発明が解決しようとする課題】しかしながら上記の如
き風力を利用する清掃構造では、風が当たりにくい条件
下では、羽根片がうまく回らなかったり、また回転する
羽根片の払拭子で清掃をおこなうため、標示面の外形が
円形以外の三角形や四角形等では隅の部分の清掃ができ
ない等の問題がある。さらに羽根片が標示面の前面に常
時位置して取付けられており、またこの羽根片が風力に
より回転するため、標示面に文字、図形等の標示がなさ
れているものにあっては、その標示が見ずらくなる等の
問題がある。
However, in the above-described cleaning structure using wind force, the blade pieces do not rotate well under the condition that the wind is hard to hit, and cleaning is performed by the wiping element of the rotating blade pieces. However, there is a problem that the corners cannot be cleaned if the marking surface has a triangular shape or a square shape other than a circular shape. Furthermore, the blade piece is always installed in front of the marking surface, and because this blade piece rotates due to the wind force, the marking surface may have markings such as letters and figures. Is difficult to see.

【0004】そこで本発明は、上記の如き問題点を解消
し、太陽光さえあれば確実に清掃され、また標示面の外
形が円形以外であっても清掃され、さらに標示面に文
字、図形等の標示がなされていても標示が見ずらくない
ようになされた標示体における標示面の清掃構造を提供
せんとするものである。
In view of the above, the present invention solves the above-mentioned problems, and can be reliably cleaned with sunlight, even if the outer shape of the marking surface is other than circular, and the characters, figures, etc. on the marking surface. It is intended to provide a cleaning structure for the marking surface of the marking body which is designed so that the marking is not difficult to see even if the marking is made.

【0005】[0005]

【課題を解決するための手段】上記目的を達成するため
に、本発明は次のような構成としている。すなわちこの
発明に係る標示体における標示面の清掃構造は、駆動軸
に対して互いに引き合う通常のスプリングと形状記憶合
金からなるスプリングと、且つ標示体の標示面上を摺動
可能な払拭体とを有し、集光レンズにより集光した太陽
光を形状記憶合金からなるスプリングに照射し、所定温
度まで加熱することにより形状記憶合金からなるスプリ
ングの弾性力を変化させ、その変化で駆動軸を回動さ
せ、その駆動軸の回動を水平動に変えて払拭体を標示体
の標示面上を摺動させることを特徴とするものである。
In order to achieve the above object, the present invention has the following arrangement. That is, the marking surface cleaning structure of the marking body according to the present invention includes a normal spring attracting each other with respect to the drive shaft and a spring made of a shape memory alloy, and a wiping body slidable on the marking surface of the marking body. The shape memory alloy spring is irradiated with sunlight collected by a condenser lens and heated to a predetermined temperature to change the elastic force of the shape memory alloy spring. It is characterized in that the wiping body is slid on the marking surface of the marking body by changing the rotation of the drive shaft to horizontal movement.

【0006】[0006]

【発明の実施の形態】次に、本発明の実施の形態につい
て図面を参照し、具体的に説明する。すなわち図1は本
発明の実施の一形態を示す説明図、図2は通常のスプリ
ングと形状記憶合金からなるスプリングとの関係を示す
説明図である。
BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be specifically described with reference to the drawings. That is, FIG. 1 is an explanatory view showing an embodiment of the present invention, and FIG. 2 is an explanatory view showing the relationship between a normal spring and a spring made of a shape memory alloy.

【0007】図1において、標示体の標示面1に標示1
1が施され、該標示面1の上部に、アクリル樹脂やポリ
カーボネート、ガラス等の透光性材料からなる集光レン
ズ2が配設されると共にその下部に通常のばね鋼等から
なるコイル状のスプリング3と形状記憶合金からなるコ
イル状のスプリング4が並設され、また標示面1の左右
に回動しない固定軸5と前記通常のスプリング3と形状
記憶合金からなるスプリング4との相互作用により回動
される駆動軸6が並設され、さらに標示面1の左側端に
標示面1上を摺動可能な払拭体7、例えばゴム、スポン
ジ、ブラシ等が配設されている。
In FIG. 1, the marking 1 is provided on the marking surface 1 of the marking body.
1 is provided, a condenser lens 2 made of a translucent material such as acrylic resin, polycarbonate, or glass is provided on the upper side of the marking surface 1, and a coiled shape made of ordinary spring steel or the like is provided under the condenser lens 2. The spring 3 and the coil-shaped spring 4 made of a shape memory alloy are arranged side by side, and the fixed shaft 5 which does not rotate to the left and right of the marking surface 1 and the ordinary spring 3 and the spring 4 made of the shape memory alloy interact with each other. A rotating drive shaft 6 is arranged in parallel, and a wiping member 7, such as rubber, sponge, or brush, which can slide on the marking surface 1 is arranged at the left end of the marking surface 1.

【0008】さらに前記駆動軸6には駆動軸6と共に回
動する駆動プーリー8が上下に二個固定され、また固定
軸5には 固定軸5に対して回動自在な従動プーリー8
1が上下に二個軸着され、その駆動プーリー8と従動プ
ーリー81との間にそれぞれ駆動ベルト82が取付けら
れ、そしてこの取付けられた上下の駆動ベルト82間に
前記払拭体7が上下に架設されている。すなわち駆動軸
6が回動すると、その駆動軸6と共に駆動プーリー8が
回動され、その駆動プーリー8の回動により駆動ベルト
82が水平動され、その駆動ベルト82の水平動により
払拭体7が標示面1上を摺動されるようになされてい
る。
Further, two drive pulleys 8 that rotate together with the drive shaft 6 are fixed to the drive shaft 6 vertically, and a driven pulley 8 that is rotatable with respect to the fixed shaft 5 is fixed to the fixed shaft 5.
1 is vertically mounted on two shafts, a drive belt 82 is mounted between the drive pulley 8 and a driven pulley 81, and the wiping body 7 is vertically mounted between the mounted upper and lower drive belts 82. Has been done. That is, when the drive shaft 6 rotates, the drive pulley 8 is rotated together with the drive shaft 6, the drive belt 82 is horizontally moved by the rotation of the drive pulley 8, and the wiping body 7 is moved by the horizontal movement of the drive belt 82. It is adapted to slide on the marking surface 1.

【0009】前記通常のスプリング3と形状記憶合金か
らなるスプリング4との関係を詳述すると、通常のスプ
リング3と形状記憶合金からなるスプリング4は、それ
ぞれその一端部は固定軸5に固着された係止部51に係
止され、他端部は駆動軸6に対して互いに引き合うよう
に、駆動軸6に固着されたベルト車61に掛けられた歯
付きベルト62で連結されている。すなわち図2に示さ
れる如く、通常のスプリング3の弾性力が形状記憶合金
からなるスプリング4の弾性力より強いと、図2(イ)
の如く、通常のスプリング3の方に引っ張られるため、
駆動軸6は通常のスプリング3の方に回動し、逆に図2
(ロ)の如く、形状記憶合金からなるスプリング4の弾
性力が強いと、形状記憶合金からなるスプリング4の方
に引っ張られ、駆動軸6は形状記憶合金からなるスプリ
ング4の方に回動する。
The relationship between the ordinary spring 3 and the spring 4 made of a shape memory alloy will be described in detail. One end of each of the ordinary spring 3 and the spring 4 made of a shape memory alloy is fixed to a fixed shaft 5. The toothed belt 62 is hooked on a belt wheel 61 fixed to the drive shaft 6 so as to be attracted to the drive shaft 6 by being engaged with the engagement portion 51. That is, as shown in FIG. 2, when the elastic force of the normal spring 3 is stronger than the elastic force of the spring 4 made of a shape memory alloy, FIG.
Since it is pulled toward the normal spring 3,
The drive shaft 6 rotates toward the normal spring 3, and conversely, as shown in FIG.
When the elastic force of the spring 4 made of a shape memory alloy is strong as shown in (b), the spring 4 made of the shape memory alloy is pulled, and the drive shaft 6 rotates toward the spring 4 made of the shape memory alloy. .

【0010】前記した形状記憶合金からなるスプリング
4は、所定温度以上で形状回復性を示すものであり、本
形態ではこの形状回復性を示した状態での弾性力を通常
のスプリング3の弾性力より強くし、形状回復性を示し
ていない所定温度以下では通常のスプリング3の弾性力
より弱くしている。従って形状記憶合金からなるスプリ
ング4が所定温度以下となる夜間等では、通常のスプリ
ング3の弾性力が強いため、駆動軸6は通常のスプリン
グ3の方に回動され、払拭体7は左側端に位置される。
そして日中になれば、集光レンズ2により集光した太陽
光に照射された形状記憶合金からなるスプリング4は加
熱され、そして所定温度以上になると形状回復性を示
し、通常のスプリング3の弾性力より強くなる。すると
駆動軸6は形状記憶合金からなるスプリング4の方に回
動され、それによって駆動プーリー8が回動し、駆動ベ
ルト82が右方向に水平動し、駆動ベルト82に架設さ
れた払拭体7は標示面1上を右側端に至るまで摺動す
る。そして日が落ちて太陽光の照射が弱くなり、加熱さ
れた形状記憶合金からなるスプリング4の温度が所定温
度以下になると、形状記憶合金からなるスプリング4の
弾性力が通常のスプリング3の弾性力より弱くなり、駆
動軸6は逆に通常のスプリング3の方に回動し、払拭体
7は標示面1上を左側端に至るまで摺動する。
The spring 4 made of the shape memory alloy described above exhibits shape recoverability at a predetermined temperature or higher. In the present embodiment, the elastic force in the state of exhibiting this shape recoverability is the elastic force of the ordinary spring 3. It is made stronger, and is made weaker than the elastic force of the normal spring 3 at a predetermined temperature or lower at which the shape recovery property is not exhibited. Therefore, at night when the spring 4 made of a shape memory alloy has a predetermined temperature or lower, the elastic force of the normal spring 3 is strong, so that the drive shaft 6 is rotated toward the normal spring 3 and the wiping body 7 is moved to the left end. Is located in.
Then, during the daytime, the spring 4 made of a shape memory alloy irradiated by the sunlight collected by the condenser lens 2 is heated, and when the temperature exceeds a predetermined temperature, the spring 4 exhibits a shape recovery property, and the elasticity of the ordinary spring 3 is increased. Become stronger than power. Then, the drive shaft 6 is rotated toward the spring 4 made of a shape memory alloy, whereby the drive pulley 8 is rotated, the drive belt 82 is horizontally moved rightward, and the wiping member 7 laid on the drive belt 82 is rotated. Slides on the marking surface 1 to the right end. Then, when the sun goes down and the irradiation of sunlight becomes weak and the temperature of the heated spring 4 made of the shape memory alloy becomes lower than a predetermined temperature, the elastic force of the spring 4 made of the shape memory alloy becomes the elastic force of the ordinary spring 3. It becomes weaker, the drive shaft 6 in turn turns toward the normal spring 3, and the wiping member 7 slides on the marking surface 1 to the left end.

【0011】このように太陽光の照射による加熱によ
り、形状記憶合金からなるスプリング4の温度を所定温
度以下から所定温度以上に上昇させ、再び所定温度以下
にさせることにより、払拭体7は標示面1上を往復摺動
し、標示面1上に付着した塵や埃が払拭される。この場
合、季節にかかわらず一日に一回払拭体7を往復摺動さ
せるには、季節による太陽光の照射度合いを考慮して、
形状記憶合金からなるスプリング4を製作するに当た
り、本形態では40℃以上で形状回復性を示すように設
定されている。この理由は、夜間では確実に40℃以下
になり、日中では冬場でも集光レンズ2により集光され
て40℃以上になると考えられるためである。
As described above, by heating by the irradiation of sunlight, the temperature of the spring 4 made of a shape memory alloy is raised from a predetermined temperature or lower to a predetermined temperature or higher, and is again lowered to or lower than the predetermined temperature, whereby the wiping body 7 is marked. By reciprocally sliding on the surface 1, dust and dirt adhering to the marking surface 1 are wiped off. In this case, in order to make the wiping body 7 slide back and forth once a day regardless of the season, consider the degree of irradiation of sunlight according to the season,
In manufacturing the spring 4 made of a shape memory alloy, in the present embodiment, it is set so as to exhibit shape recoverability at 40 ° C. or higher. The reason for this is that the temperature is certainly 40 ° C. or less at night, and it is considered that the light is condensed by the condenser lens 2 even at winter in the daytime and becomes 40 ° C. or more.

【0012】また本形態において、駆動軸6の回動を駆
動プーリー8及び従動プーリー81と駆動ベルト82に
より水平動に変えているが、駆動軸6にピニオンを取付
け、このピニオンにラックを噛み合わせることにより、
水平動に変え、このラックに払拭体7が取付けられてい
てもよい。また払拭体7は標示面1上を左側端から右側
端に摺動させているが、右端側から摺動させてもよく、
さらに上端から下端に、逆に下端から上端に摺動させる
ようにしてもよい。
Further, in the present embodiment, the rotation of the drive shaft 6 is changed to the horizontal motion by the drive pulley 8, the driven pulley 81 and the drive belt 82. A pinion is attached to the drive shaft 6 and the rack is meshed with the pinion. By
The wiping body 7 may be attached to this rack instead of the horizontal movement. Although the wiping member 7 is slid on the marking surface 1 from the left end to the right end, it may be slid from the right end.
Further, it may be slid from the upper end to the lower end and vice versa.

【0013】[0013]

【発明の効果】本発明によれば、風が当たりにくい条件
でも、太陽光さえあれば確実に清掃され、また標示面の
外形が円形以外であっても清掃され、さらに標示面に文
字、図形等の標示がなされていても払拭体は常時標示面
の前面に位置しておらず、またほぼ一日に一回摺動する
のみなので、標示が見ずらくなることはない。
According to the present invention, even under the condition that the wind is hard to hit, it can be surely cleaned by sunlight, and even if the outer shape of the marking surface is not circular, the marking surface can have characters and figures. The wiping body is not always located on the front surface of the marking surface even if the markings such as “1” are given, and since the wiping body slides almost once a day, the marking does not become difficult to see.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施の一形態を示す説明図である。FIG. 1 is an explanatory diagram showing an embodiment of the present invention.

【図2】通常のスプリングと形状記憶合金からなるスプ
リングとの関係を示す説明図であり、(イ)は通常のス
プリングの弾性力が強い場合、(ロ)は形状記憶合金か
らなるスプリングの弾性力が強い場合を示している。
FIG. 2 is an explanatory diagram showing a relationship between a normal spring and a spring made of a shape memory alloy, where (a) shows the elasticity of the spring made of a shape memory alloy when the elastic force of the normal spring is strong. This shows the case where the power is strong.

【符号の説明】[Explanation of symbols]

1 標示面 2 集光レンズ 3 通常のスプリング 4 形状記憶合金からなるスプリング 5 固定軸 51 係止部 6 駆動軸 61 ベルト車 62 歯付きベルト 7 払拭体 8 駆動プーリー 81 従動プーリー 82 駆動ベルト 1 Marking Surface 2 Condenser Lens 3 Normal Spring 4 Spring Made of Shape Memory Alloy 5 Fixed Shaft 51 Locking Part 6 Drive Shaft 61 Belt Wheel 62 Toothed Belt 7 Wiping Body 8 Drive Pulley 81 Driven Pulley 82 Drive Belt

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 駆動軸に対して互いに引き合う通常のス
プリングと形状記憶合金からなるスプリングと、且つ標
示体の標示面上を摺動可能な払拭体とを有し、集光レン
ズにより集光した太陽光を形状記憶合金からなるスプリ
ングに照射し、所定温度まで加熱することにより形状記
憶合金からなるスプリングの弾性力を変化させ、その変
化で駆動軸を回動させ、その駆動軸の回動を水平動に変
えて払拭体を標示体の標示面上を摺動させることを特徴
とする標示体における標示面の清掃構造。
1. An ordinary spring attracting each other with respect to a drive shaft, a spring made of a shape memory alloy, and a wiping body slidable on the marking surface of the marking body, and condensed by a condenser lens. The elastic force of the spring made of the shape memory alloy is changed by irradiating the spring made of the shape memory alloy with sunlight and heating it to a predetermined temperature, and the change causes the drive shaft to rotate. A structure for cleaning the marking surface of the marking body, characterized in that the wiping body is slid on the marking surface of the marking body in place of horizontal movement.
JP25589595A 1995-10-03 1995-10-03 Cleaning structure of sign surface in sign object Expired - Fee Related JP3338742B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25589595A JP3338742B2 (en) 1995-10-03 1995-10-03 Cleaning structure of sign surface in sign object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25589595A JP3338742B2 (en) 1995-10-03 1995-10-03 Cleaning structure of sign surface in sign object

Publications (2)

Publication Number Publication Date
JPH0995913A true JPH0995913A (en) 1997-04-08
JP3338742B2 JP3338742B2 (en) 2002-10-28

Family

ID=17285066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25589595A Expired - Fee Related JP3338742B2 (en) 1995-10-03 1995-10-03 Cleaning structure of sign surface in sign object

Country Status (1)

Country Link
JP (1) JP3338742B2 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980070207A (en) * 1997-01-06 1998-10-26 오쿠무라오사무 Marking device for freezing
ES2128202A1 (en) * 1997-10-15 1999-05-01 Vanos S A Automatic process for the removal of condensation and for cleaning vertical road-signing panels
EP1156466A1 (en) * 2000-05-18 2001-11-21 Kenichi Nakajima Road display apparatus
EP1211353A2 (en) * 2000-11-24 2002-06-05 Osamu Okumura Temperature-responsively operated drive mechanism
JP4846051B1 (en) * 2010-11-05 2011-12-28 株式会社ナナオ Sensor unit operating mechanism and liquid crystal display device including the sensor unit operating mechanism
CN108387133A (en) * 2018-04-12 2018-08-10 吉林大学 A kind of evaporator for air-conditioning system of automobile automatic cleaning apparatus
CN110404834A (en) * 2019-07-23 2019-11-05 深圳市律远汇智科技有限公司 A kind of portable type software test apparatus with regulatory function
CN111136048A (en) * 2020-02-05 2020-05-12 厦门翟湾电脑有限公司 High-efficient quick belt cleaning device of display
CN111594570A (en) * 2020-06-16 2020-08-28 上海可蓝信息科技有限公司 Information technology multimedia rapid display device
CN112663532A (en) * 2021-01-25 2021-04-16 江西安达交通设施有限公司 Automatic intelligent highway sign of clearance

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109036174B (en) * 2018-09-05 2021-01-05 鲍建永 A publicity board for public management
CN110670503A (en) * 2019-10-18 2020-01-10 王秀侠 Road sign is used in construction
CN111058398B (en) * 2019-12-26 2021-11-09 新疆丝路六合电气科技有限公司 Self-triggering type dust removal indication board

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980070207A (en) * 1997-01-06 1998-10-26 오쿠무라오사무 Marking device for freezing
ES2128202A1 (en) * 1997-10-15 1999-05-01 Vanos S A Automatic process for the removal of condensation and for cleaning vertical road-signing panels
EP1156466A1 (en) * 2000-05-18 2001-11-21 Kenichi Nakajima Road display apparatus
EP1211353A2 (en) * 2000-11-24 2002-06-05 Osamu Okumura Temperature-responsively operated drive mechanism
EP1211353A3 (en) * 2000-11-24 2003-11-26 Osamu Okumura Temperature-responsively operated drive mechanism
JP4846051B1 (en) * 2010-11-05 2011-12-28 株式会社ナナオ Sensor unit operating mechanism and liquid crystal display device including the sensor unit operating mechanism
WO2012060129A1 (en) * 2010-11-05 2012-05-10 株式会社ナナオ Sensor unit-actuating mechanism and liquid crystal display device provided with sensor unit-actuating mechanism
US9176005B2 (en) 2010-11-05 2015-11-03 Eizo Corporation Sensor unit-actuating mechanism and liquid crystal display device provided with sensor unit-actuating mechanism
CN108387133A (en) * 2018-04-12 2018-08-10 吉林大学 A kind of evaporator for air-conditioning system of automobile automatic cleaning apparatus
CN110404834A (en) * 2019-07-23 2019-11-05 深圳市律远汇智科技有限公司 A kind of portable type software test apparatus with regulatory function
CN111136048A (en) * 2020-02-05 2020-05-12 厦门翟湾电脑有限公司 High-efficient quick belt cleaning device of display
CN111594570A (en) * 2020-06-16 2020-08-28 上海可蓝信息科技有限公司 Information technology multimedia rapid display device
CN112663532A (en) * 2021-01-25 2021-04-16 江西安达交通设施有限公司 Automatic intelligent highway sign of clearance

Also Published As

Publication number Publication date
JP3338742B2 (en) 2002-10-28

Similar Documents

Publication Publication Date Title
JPH0995913A (en) Cleaning structure of indicating surface of indicating body
US7150795B2 (en) Transparent windshield wiper assembly and method of cleaning a windshield
US5455640A (en) Eye glass systems with integral time/temperature components
DE202010004116U1 (en) Device for removing at least snow or ice on at least one solar panel
CN209373940U (en) A kind of automatically cleaning road indicator
CN113315948A (en) High-definition hemispherical camera
CN210271241U (en) Highway supervisory equipment
CN109732617A (en) A kind of construction prompt robot convenient for storage
CN210511439U (en) Solar street lamp with snow removing ability
CN102358261A (en) Reinforced multifunctional windscreen wiper
CN204252036U (en) Automatically cleaning delineator
US1636879A (en) Antifrost vision appliance
Al-Khazzar A new method to reduce soiling effect on performance of a solar PV module
CN213089657U (en) Night highway emergency street lamp
CN112365725B (en) Intelligent traffic light for smart city
CN108708573A (en) A kind of sunshade of side pavement
JP2001040624A (en) Road display device
DE3314515A1 (en) Exterior rear view mirror
US1180589A (en) Glare-shield.
JP3962771B2 (en) Line-of-sight inducer with dust-proof mechanism
CN202230265U (en) Novel dust-proof and fog-proof spectacles
CN220619854U (en) Building construction safety warning device
CN216641200U (en) Intelligent outdoor electric awning
CN216988741U (en) Traffic vehicle detector
CN216212166U (en) Signboard with anti-backlight structure

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees