JP2008202361A - Formed article for road screen - Google Patents

Formed article for road screen Download PDF

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Publication number
JP2008202361A
JP2008202361A JP2007041980A JP2007041980A JP2008202361A JP 2008202361 A JP2008202361 A JP 2008202361A JP 2007041980 A JP2007041980 A JP 2007041980A JP 2007041980 A JP2007041980 A JP 2007041980A JP 2008202361 A JP2008202361 A JP 2008202361A
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shielding plate
molded product
hole
screen
attached
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Kashichi Hirota
嘉七 廣田
Junji Fukuda
順二 福田
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YOSHIFUJI KK
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YOSHIFUJI KK
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Priority to JP2007041980A priority Critical patent/JP2008202361A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a formed article installed on a screen to enhance the visibility of existing screens installed on roads. <P>SOLUTION: This formed article is formed of a plastic resin material in which a luminous pigment is mixed, and may have a size and a shape generally matching a part of the upper part of the screen. The formed article is so disposed as to cover the upper part of the screen, and secured to the screen with a fixing means. By mounting the formed article of this invention on an existing screen, the screen can have functions of intercepting the illumination of on-coming vehicles and facilitating the identification of the screen on a road during the traveling at night, and the safety at night can be enhanced. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、高速道路や中央分離帯を有する一般道路において所定の間隔で中央分離帯に設置される設置板、遮蔽板等に取り付けるための成形品に関する。特に本発明は、夜間の走行に際して中央分離帯等の識別を容易にするための遮蔽板用成形品に関する。   The present invention relates to a molded product to be attached to an installation plate, a shielding plate, or the like that is installed at a predetermined interval on a highway or a general road having a central separation zone. In particular, the present invention relates to a molded product for a shielding plate for facilitating identification of a median strip or the like when traveling at night.

自動車の対面交通に際しては、夜間には対向車の照明が目に入り運転を妨げられることがあったり、中央分離帯の識別がしにくいといったことが多い。このことを考慮して、高速道路などの中央分離帯には、フェンスやパネルといった種々の形式の障壁を設けている。これら障壁は一般的に大掛かりなものになることが多い。
この中でも道路中央分離帯に配置されることの多い、対向車の照明等の遮断のための遮蔽板がある(例えば、特許文献１参照）。特許文献１に記載の発明では、プラスチック材料の成形品からなる一対の部材が内部を中空とする組立体を構成し、中空内部少なくとも縁部に蓄光材料の塗布層を有するようになっている。 In the face-to-face traffic of automobiles, it is often difficult to identify the median strip at night, when the lighting of oncoming vehicles can get into the eyes and interfere with driving. In consideration of this, various types of barriers such as fences and panels are provided in a median strip such as a highway. These barriers are often large-scale in general.
Among them, there is a shielding plate that is often disposed in a road center separation zone for blocking illumination of an oncoming vehicle (see, for example, Patent Document 1). In the invention described in Patent Document 1, a pair of members made of a molded product of a plastic material constitutes an assembly in which the inside is hollow, and a coating layer of a phosphorescent material is provided at least at the edge of the hollow interior.

特許第３６３９８３３号特許公報Japanese Patent No. 3639833

しかし、特許文献１に記載の発明では遮蔽板を形成する段階からそのための蓄光材料の塗布層を形成するようになっており、既存の設置板を利用することはできない。そのため、道路に設置されている遮蔽板だけでは、夜間の視認性に欠けるといった不都合が発生するような場合に、新たに視認性の高い遮蔽板を製造し、設置しなければならない。これでは、いかにも不経済である。
そこで、本発明は、道路において、夜間あるいは暗闇での走行に際して高速道路や一般道路の中央分離帯において識別性を容易に高める機能を、既に設置されている遮蔽板に取付ることによってもたらすことのできる、既存の遮蔽板に適用できる成形品を提供することを課題とする。 However, in the invention described in Patent Document 1, the application layer of the phosphorescent material is formed from the stage of forming the shielding plate, and the existing installation plate cannot be used. Therefore, in the case where the inconvenience such as lack of visibility at night occurs only with the shielding plate installed on the road, it is necessary to newly manufacture and install a shielding plate with high visibility. This is very uneconomical.
Therefore, the present invention provides a function for easily improving the discrimination on the highway and the median strip of a general road when driving at night or in the dark on a road by attaching it to an already installed shielding plate. An object is to provide a molded product that can be applied to an existing shielding plate.

上記課題を解決するために、道路において設置されている既存の遮蔽板の視認性を高めるように、該遮蔽板に取り付ける成形品を提供する。該成形品は、蓄光顔料が混合されたプラスチック樹脂材料から構成されており、遮蔽板の上側部分の一部とほぼ一致するような大きさと形状を有していればよい。すなわち、成形品を遮蔽板の上側部分から取り付けると遮蔽板の上側部分を全体的に覆うことができるような中空形状となっていればよい。成形品が遮蔽板の上部からかぶせられるようにして配置されると、固定手段により該成形品が遮蔽板に取り付けられるようになっている。   In order to solve the above problems, a molded product attached to a shielding plate is provided so as to improve the visibility of an existing shielding plate installed on a road. The molded article is made of a plastic resin material mixed with a phosphorescent pigment, and may have a size and a shape that substantially coincide with a part of the upper portion of the shielding plate. That is, it suffices if the molded product is attached from the upper part of the shielding plate so that the upper part of the shielding plate can be entirely covered. When the molded product is arranged so as to be covered from the upper part of the shielding plate, the molded product is attached to the shielding plate by the fixing means.

１実施態様において、成形品のプラスチック材料に対する蓄光顔料の配合比は１０％から３０％であることが好ましい。
成形品の本体部分の一部には、遮蔽板に取り付けるための穴が形成されていればよい。該穴は、成形品の本体のほぼ中央であって、下寄りに形成されていることが好ましい。 In one embodiment, the blending ratio of the luminous pigment to the plastic material of the molded product is preferably 10% to 30%.
A hole for attaching to the shielding plate may be formed in a part of the main body portion of the molded product. It is preferable that the hole is formed in the lower part of the main body of the molded product.

固定手段はボルトとナットであることが好ましく、成形品が前記遮蔽板に取り付けられる際には、成形品の穴に対応する位置に遮蔽板に貫通孔を設け、ボルトを成形品の穴と貫通孔を貫通させナットにより固定するようになっていればよい。
固定手段は、これに限定されるものではなく、一般的な接着剤等を使用をすることが可能である。この場合は、成形品に穴を形成したり、遮蔽板に貫通孔を形成する必要はない。 The fixing means is preferably a bolt and a nut, and when the molded product is attached to the shielding plate, a through hole is provided in the shielding plate at a position corresponding to the hole of the molded product, and the bolt penetrates the hole of the molded product. What is necessary is just to let a hole penetrate and fix with a nut.
The fixing means is not limited to this, and a general adhesive or the like can be used. In this case, it is not necessary to form a hole in the molded product or to form a through hole in the shielding plate.

本発明の成形品は、一般道路や高速道路に一般的に設置されている既存の遮蔽板を利用し、該遮蔽板の上部に取り付けることにより、夜間や暗闇などにおいても十分に識別可能となるように構成されている。本発明の成形品は、蓄光性顔料が含有されたプラスチック樹脂により成形されているため軽量であり、極めて単純な作業により既存の遮蔽板に取り付けたり、不要になれば取り外すことができる。また、従来のように単に遮蔽板に蓄光顔料を塗布する場合には、風雨や長時間の日光の照射により劣化しやすいことがあるが、本発明の成形品は、蓄光性顔料が含有されたプラスチック樹脂製であるため、自然に対しての耐久性にすぐれたものである。また、日中に蓄えられたエネルギーにより十分に夜間などにおいても光ることができ、資源を無駄にすることなく、エネルギーを有効に利用することができる。使用されるプラスチック樹脂は透明であるため、取り付けられる遮蔽板そのものの外観を大きく変更することなく見た目にも美観を損なうことはない。   The molded article of the present invention can be sufficiently identified even at night or in the dark by using an existing shielding plate generally installed on a general road or a highway and attaching it to the top of the shielding plate. It is configured as follows. The molded article of the present invention is lightweight because it is molded from a plastic resin containing a luminous pigment, and can be attached to an existing shielding plate by an extremely simple operation, or can be removed if unnecessary. In addition, when the phosphorescent pigment is simply applied to the shielding plate as in the prior art, it may be easily deteriorated due to wind and rain or irradiation of sunlight for a long time, but the molded product of the present invention contains the phosphorescent pigment. Because it is made of plastic resin, it has excellent durability against nature. In addition, the energy stored during the day can be sufficiently lit at night and the like, and the energy can be used effectively without wasting resources. Since the plastic resin used is transparent, it does not impair the appearance even if it does not significantly change the appearance of the attached shielding plate itself.

本発明の成形品は、遮蔽板の一部にのみ取り付ければよいため、成形品は最低限の大きさであればよく、成形品を製造するために要される樹脂、蓄光顔料の使用量もかなり少量ですむ。さらに、金型費や成形加工賃も節約することができるといった、経済的にも大きな効果をもたらすことができる。
また、本発明の成形品は、例えば、成形品１０のみが損傷するような場合があっても簡単に取替えができるという好ましい効果も有する。 Since the molded product of the present invention only needs to be attached to a part of the shielding plate, the molded product only needs to have a minimum size, and the amount of resin and phosphorescent pigment used to manufacture the molded product is also required. It's pretty small. Furthermore, it is possible to bring about a great economic effect that the mold cost and the molding processing fee can be saved.
Further, the molded product of the present invention also has a preferable effect that it can be easily replaced even when only the molded product 10 is damaged.

以下、本発明の実施の一形態を添付の図を参照して説明する。
図１は、一般的に高速道路または一般道路において使用されている遮蔽板２０の一例を示す正面図である。図２の(a)は、本発明に係る、遮蔽板２０に取り付けるための夜間でも視認可能とできるようにするための成形品１０の１実施形態を示す正面図である。図２の(b)は、図２（a）で図示された成形品１０のX-X線の断面図である。成形品１０は、遮蔽板２０の上側部分を全体的に覆うようにして取り付けるのに適した形状を有する。従って、取り付けられるべき遮蔽板２０の形状、大きさによっては成形品１０の形状を変更することになる。 Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a front view showing an example of a shielding plate 20 that is generally used on a highway or a general road. (A) of FIG. 2 is a front view showing an embodiment of a molded product 10 according to the present invention for enabling visual recognition even at night for attachment to the shielding plate 20. FIG. 2B is a cross-sectional view taken along line XX of the molded product 10 illustrated in FIG. The molded product 10 has a shape suitable for being attached so as to entirely cover the upper portion of the shielding plate 20. Therefore, the shape of the molded product 10 is changed depending on the shape and size of the shielding plate 20 to be attached.

成形品１０のほぼ中央部には下方に向いて延びるほぼ半円形状の突出部１４が形成されており、該突出部１４と成形品１０の本体部分にかけて、成形品１０を遮蔽板２０に取り付けるための貫通穴１２が形成されている。
本実施形態において、取付け用の穴１２は、成形品１０のほぼ中央に形成してあるが、この位置に限定されるものではなく、取り付けられるべき遮蔽板２０との関係において最も適した位置を選択できる。 A substantially semicircular protruding portion 14 extending downward is formed at a substantially central portion of the molded product 10, and the molded product 10 is attached to the shielding plate 20 across the protruding portion 14 and the main body portion of the molded product 10. For this purpose, a through hole 12 is formed.
In the present embodiment, the mounting hole 12 is formed at substantially the center of the molded product 10, but is not limited to this position, and the most suitable position in relation to the shielding plate 20 to be mounted. You can choose.

図２(b)からも理解できるように、成形品１０は遮蔽板２０の上面を覆い、上からすっぽりとはめ込むことができるような所定の厚みを有する形状からなる。この厚みは、薄すぎると耐久性に欠けることになりかねないため、遮蔽板に取り付けられた場合において十分な耐久性を有する程度の厚みであればよい。成形品１０の下端側すなわち遮蔽板２０への取り付け方向側は開いた状態であり、その内部は中空となっている。成形品１０の上端側から下端側までの寸法Wは、遮蔽板２０に取り付けられたときに、車内から認識できる程度の大きさであればよいが、５０ｍｍから１００ｍｍの範囲であることが好ましい。   As can be understood from FIG. 2 (b), the molded article 10 has a shape having a predetermined thickness so as to cover the upper surface of the shielding plate 20 and fit completely from above. Since this thickness may lack durability if it is too thin, it is sufficient that the thickness has sufficient durability when attached to the shielding plate. The lower end side of the molded product 10, that is, the side in the direction of attachment to the shielding plate 20 is in an open state, and the inside is hollow. The dimension W from the upper end side to the lower end side of the molded product 10 may be a size that can be recognized from the inside of the vehicle when attached to the shielding plate 20, but is preferably in the range of 50 mm to 100 mm.

成形品１０はプラスチック樹脂からなる成形品である。プラスチック樹脂材料としてポリカーボネート、ポリプロピレン、ポリエチレンであればよいが、その他のプラスチック材料を採用することも可能である。成形品１０は透明であることが好ましい。プラスチック材料には蓄光顔料が含まれている。蓄光顔料は、一般的には無機顔料であり、硫化石灰、硫化ストロンチウムまたは硫化亜鉛などを含む一般的な蓄光顔料であればよい。蓄光塗料は、好ましくは、成形品１０に対し配合比率で１０％から３０％含まれていることが好ましく、１０％から２０％であることがさらに好ましい。蓄光顔料が成形品に含まれることで、日中の光線、照明光線などの人口光線、紫外線などの光線の刺激を受けると、これらのエネルギーを蓄積した後、吸収した光線を放ちながら発光するようになる。従って本発明の成形品１０は特別の光線や電源を必要とすることなく夜間および暗所において明るく光ることができ、既存の遮蔽板に取付けられると、夜間や暗所においても十分に識別可能となり視認性も向上されることになる。成形品１０は、強い直射日光、あるいは風雨に長時間曝される場所に使用されるときには、例えば蓄光塗料を単に遮蔽板に塗布する場合よりも耐水性、耐久性に優れたものとなる。   The molded product 10 is a molded product made of a plastic resin. The plastic resin material may be polycarbonate, polypropylene, or polyethylene, but other plastic materials may be employed. The molded article 10 is preferably transparent. The plastic material contains a phosphorescent pigment. The phosphorescent pigment is generally an inorganic pigment and may be a common phosphorescent pigment containing lime sulfide, strontium sulfide, zinc sulfide, or the like. The phosphorescent paint is preferably contained in an amount of 10% to 30%, more preferably 10% to 20%, relative to the molded product 10. By containing phosphorescent pigments in molded products, when stimulated by sunlight, artificial rays such as illumination rays, and ultraviolet rays, etc., these energy are stored and then emitted while emitting the absorbed light. become. Therefore, the molded article 10 of the present invention can shine brightly at night and in the dark without requiring any special light beam or power source, and when it is attached to an existing shielding plate, it can be sufficiently identified at night or in the dark. Visibility is also improved. When the molded article 10 is used in a place exposed to strong direct sunlight or wind and rain for a long time, the molded article 10 is superior in water resistance and durability, for example, compared to a case where a phosphorescent paint is simply applied to a shielding plate.

図３は、成形品１０を遮蔽板２０に取り付けた状態を表す正面図であり、図４は、図３に図示する成形品１０が取り付けられた遮蔽板２０の線Y-Yの断面図であり、遮蔽板２０の上部に成形品１０が被さった構成となっている。遮蔽板２０には成形品１０を取り付けるための貫通孔１９が取付前に予め形成される。すなわち、成形品１０を遮蔽板２０に取り付けると、成形品１０の穴１２と遮蔽板２０に形成された貫通孔１９とがほぼ一致するようになっている。   3 is a front view showing a state in which the molded product 10 is attached to the shielding plate 20, and FIG. 4 is a cross-sectional view taken along line YY of the shielding plate 20 to which the molded product 10 illustrated in FIG. 3 is attached. The molded product 10 is configured to cover the upper part of the shielding plate 20. A through hole 19 for attaching the molded product 10 is formed in the shielding plate 20 in advance before attachment. That is, when the molded product 10 is attached to the shielding plate 20, the hole 12 of the molded product 10 and the through hole 19 formed in the shielding plate 20 substantially coincide with each other.

成形品１０が遮蔽板２０の上面からかぶせられると、座金１５が穴１２に隣接して配置され、取付ボルト１６が成形品１０の穴１２を通って遮蔽板２０の貫通孔１９を貫通し締め付けナット１７により締め付けられ固定されるようになっている。ボルト１６とナット１７は、一般的に樹脂製品等に使用されるものであればよい。このように、成形品１０を容易に遮蔽板２０に取り付けることができる。また、成形品１０を取り外す場合にも逆の手順により簡単に行なうことができる。   When the molded product 10 is covered from the upper surface of the shielding plate 20, the washer 15 is arranged adjacent to the hole 12, and the mounting bolt 16 passes through the through hole 19 of the shielding plate 20 through the hole 12 of the molded product 10 and tightens. The nut 17 is fastened and fixed. The bolt 16 and the nut 17 may be those generally used for resin products or the like. Thus, the molded article 10 can be easily attached to the shielding plate 20. Moreover, when removing the molded article 10, it can carry out easily by the reverse procedure.

本実施形態では、成形品１０と遮蔽板２０との取付けの固定にボルトとナットを使用しているが、成形品１０と遮蔽板とを固定できるものであれば、他の固定手段も使用することが可能である。例えば接着剤等を使うことも可能である。すなわち、成形品１０の内面側に接着剤層を形成し、そのまま遮蔽板２０に取り付けることも可能である。接着剤を使用する場合には、成形品１０の穴１２は必要なく、遮蔽板にも貫通孔を形成する必要はない。これらの取付のための固定手段は、成形品１０が適用される遮蔽板の材料等によって変更できる。また、本発明の成形品は、既存の遮蔽板に取り付けるものとして記載してきたが、新たに成形される遮蔽板にももちろん採用することができる。
本発明の成形品１０は、上述してきたように、車内から遮蔽板を認識できる程度の大きさであればよいため、使用される樹脂を少量とすることができ、金型費や成形加工賃なども従来のものに比べて安価にできるという大きな利点も有する。 In this embodiment, bolts and nuts are used for fixing the molded product 10 and the shielding plate 20, but other fixing means may be used as long as the molded product 10 and the shielding plate can be fixed. It is possible. For example, an adhesive can be used. That is, it is possible to form an adhesive layer on the inner surface side of the molded product 10 and attach it to the shielding plate 20 as it is. When an adhesive is used, the hole 12 of the molded product 10 is not necessary, and it is not necessary to form a through hole in the shielding plate. The fixing means for these attachments can be changed depending on the material of the shielding plate to which the molded product 10 is applied. Moreover, although the molded product of this invention has been described as what is attached to the existing shielding board, of course, it can be employ | adopted also to the shielding board newly shape | molded.
As described above, the molded product 10 of the present invention only needs to be large enough to recognize the shielding plate from the inside of the vehicle, so that a small amount of resin can be used, and the mold cost and molding processing cost can be reduced. Has a great advantage that it can be made cheaper than the conventional one.

以上、本発明の好ましい実施形態について記載してきたが、形状、材料、寸法等はこれらに限定されるものではなく、用途、機能に応じて変更可能である。   As mentioned above, although preferable embodiment of this invention was described, a shape, material, a dimension, etc. are not limited to these, It can change according to a use and a function.

図１は、一般的な遮蔽板の正面図である。FIG. 1 is a front view of a general shielding plate. （a)は、本発明の一実施形態による成形品の正面図であり、(b)は、(a)のX-X線の断面図である。(A) is a front view of the molded article by one Embodiment of this invention, (b) is sectional drawing of the XX line of (a). 図１に図示した遮蔽板に本発明の成形品を取り付けた状態を示す正面図である。It is a front view which shows the state which attached the molded article of this invention to the shielding board illustrated in FIG. 図３に図示した遮蔽板に取り付けられた状態を表す成形品のY-Y線の断面図である。It is sectional drawing of the YY line of the molded article showing the state attached to the shielding board shown in FIG.

符号の説明Explanation of symbols

１０ 成形品
１２ 穴
１４ 突出部
１５ 座金
１６ 取付けボルト
１７ 締付けナット
１９ 貫通孔
２０ 遮蔽板 DESCRIPTION OF SYMBOLS 10 Molded product 12 Hole 14 Protruding part 15 Washer 16 Fixing bolt 17 Tightening nut 19 Through-hole 20 Shielding plate

Claims (6)

道路において使用される遮蔽板に、視認性を高めるように取り付けられる成形品であって、
該成形品は、蓄光顔料が混合されたプラスチック樹脂材料から構成されており、前記遮蔽板の形状に対応して該遮蔽板の少なくとも上側部分を全体的に覆うような寸法と、内部が中空となった形状を有するものであり、前記成形品が前記遮蔽板の上部から配置されると、固定手段により前記遮蔽板に取り付けられるようになっていることを特徴とする成形品。 It is a molded product that is attached to a shielding plate used on the road so as to improve visibility,
The molded article is made of a plastic resin material mixed with a phosphorescent pigment, and has a dimension that covers at least the upper part of the shielding plate as a whole corresponding to the shape of the shielding plate, and the inside is hollow. The molded product is configured to be attached to the shielding plate by fixing means when the molded product is arranged from above the shielding plate. 前記成形品に対する蓄光顔料の配合比は１０％から２０％であることを特徴とする請求項１に記載の成形品。   The molded product according to claim 1, wherein the blending ratio of the luminous pigment to the molded product is 10% to 20%. 前記遮蔽板の上側に対応する前記成形品の上端側から下端側までの寸法は、５０ｍｍから１００ｍｍの範囲であることを特徴とする請求項１または２のずれかに記載の成形品。   3. The molded product according to claim 1, wherein a dimension from the upper end side to the lower end side of the molded product corresponding to the upper side of the shielding plate is in a range of 50 mm to 100 mm. 前記成形品の１部には遮蔽板に取り付けるための穴が形成されていることを特徴とする請求項１から３のいずれかに記載の成形品。   The molded product according to any one of claims 1 to 3, wherein a hole for attachment to a shielding plate is formed in a part of the molded product. 前記固定手段はボルトとナットであり、前記成形品が前記遮蔽板に取り付けられる際には、前記成形品の前記穴に対応する位置に前記遮蔽板に貫通孔を設け、前記ボルトを前記穴と貫通孔を貫通してナットにより固定するようになっていることを特徴とする請求項１から４のいずれかに記載の成形品。   The fixing means is a bolt and a nut, and when the molded product is attached to the shielding plate, a through hole is provided in the shielding plate at a position corresponding to the hole of the molded product, and the bolt is connected to the hole. The molded article according to any one of claims 1 to 4, wherein the molded article penetrates the through hole and is fixed by a nut. 前記成形品は、該成形品が取り付けられた前記遮蔽板から取り外し可能であることを特徴とする請求項１から５のいずれかに記載の成形品。   The molded article according to any one of claims 1 to 5, wherein the molded article is removable from the shielding plate to which the molded article is attached.
JP2007041980A 2007-02-22 2007-02-22 Formed article for road screen Withdrawn JP2008202361A (en)

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JP2007041980A JP2008202361A (en) 2007-02-22 2007-02-22 Formed article for road screen

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0223010U (en) * 1988-07-28 1990-02-15
JPH03119597A (en) * 1989-09-29 1991-05-21 Fujitsu Ltd Difference voltage amplifying circuit
JPH03120788A (en) * 1989-10-04 1991-05-22 Hitachi Ltd Printed circuit board
JPH07300825A (en) * 1994-05-02 1995-11-14 Yoshiaki Hagiwara Reflective glance guidance mark
JPH08170314A (en) * 1994-12-16 1996-07-02 Kuramoto Doro:Kk Guide sign for road and installation structure thereof
JPH10102438A (en) * 1996-09-25 1998-04-21 Nippon Mektron Ltd Traffic sign pole
JP2001164524A (en) * 1999-12-08 2001-06-19 Line Kogyo Kk Leading marking device
JP2002366065A (en) * 2001-06-12 2002-12-20 Shiina:Kk Guide plate
JP2004293241A (en) * 2003-03-28 2004-10-21 Kyowa Electric & Chem Co Ltd Installation plate in road central traffic strip, for interrupting illumination of opposed vehicle and recognizing traffic strip at night
JP2005098066A (en) * 2003-08-26 2005-04-14 Sekisui Jushi Co Ltd Antidazzle board for road
JP2005336949A (en) * 2004-05-31 2005-12-08 Kyowa Electric & Chem Co Ltd Installation plate for shutting off illumination of oncoming car in road median strip and identifying median strip at night

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0223010U (en) * 1988-07-28 1990-02-15
JPH03119597A (en) * 1989-09-29 1991-05-21 Fujitsu Ltd Difference voltage amplifying circuit
JPH03120788A (en) * 1989-10-04 1991-05-22 Hitachi Ltd Printed circuit board
JPH07300825A (en) * 1994-05-02 1995-11-14 Yoshiaki Hagiwara Reflective glance guidance mark
JPH08170314A (en) * 1994-12-16 1996-07-02 Kuramoto Doro:Kk Guide sign for road and installation structure thereof
JPH10102438A (en) * 1996-09-25 1998-04-21 Nippon Mektron Ltd Traffic sign pole
JP2001164524A (en) * 1999-12-08 2001-06-19 Line Kogyo Kk Leading marking device
JP2002366065A (en) * 2001-06-12 2002-12-20 Shiina:Kk Guide plate
JP2004293241A (en) * 2003-03-28 2004-10-21 Kyowa Electric & Chem Co Ltd Installation plate in road central traffic strip, for interrupting illumination of opposed vehicle and recognizing traffic strip at night
JP2005098066A (en) * 2003-08-26 2005-04-14 Sekisui Jushi Co Ltd Antidazzle board for road
JP2005336949A (en) * 2004-05-31 2005-12-08 Kyowa Electric & Chem Co Ltd Installation plate for shutting off illumination of oncoming car in road median strip and identifying median strip at night

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