JP6713161B2

JP6713161B2 - Traffic lights

Info

Publication number: JP6713161B2
Application number: JP2016121970A
Authority: JP
Inventors: 裕紀戸舘; 駿三浦; 陽拓久保
Original assignee: 株式会社ササキコーポレーション
Priority date: 2016-06-20
Filing date: 2016-06-20
Publication date: 2020-06-24
Anticipated expiration: 2036-06-20
Also published as: JP2017227979A

Description

本発明は、交通信号灯に関し、特に降雪時に信号灯のレンズ部に雪が付着しないようにした交通信号灯の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 traffic signal light, and more particularly to a structure of the traffic signal light in which snow does not adhere to a lens portion of the signal light during snowfall.

交通信号灯は、降雪がある地域においては、信号灯のレンズ部に着雪があると、点灯色が視認できなくなり、交通信号の役割を果たさなくなるという問題がある。このため何らかの着雪防止策を講じる必要がある。従来、光源として白熱電球等を使用していた信号灯は、白熱電球自体が発熱するため、着雪した雪を解かすことができるため、レンズ部に着雪して認識できずに交通に支障をきたすほど問題となることがなかった。しかし、近年発光ダイオード（ＬＥＤ）を光源として使用した省エネタイプの信号灯が採用されるようになってきている。発光ダイオードの場合、発熱量が低いため着雪した雪を溶かすことができず、信号灯のレンズ部の着雪により点灯色を視認できないという問題がある。 In a traffic signal light, in a region where snowfall occurs, if there is snow on the lens portion of the signal light, the lighting color cannot be visually recognized, and there is a problem that the traffic signal does not play the role of a traffic signal. Therefore, it is necessary to take some measures to prevent snow accretion. Conventionally, signal lights that used incandescent bulbs etc. as light sources generate heat from the incandescent bulb itself, and can dissolve snow that has snowed. It didn't cause any problems. However, in recent years, energy saving type signal lamps using a light emitting diode (LED) as a light source have been adopted. In the case of a light emitting diode, since the amount of heat generated is low, snow that has snowed cannot be melted, and there is a problem that the lighting color cannot be visually recognized due to snow that has landed on the lens portion of the signal lamp.

前記のような問題を解決するため、従来様々な方法が提案されている。例えば、特開平９−２６４０１１号公報(特許文献１)の「着雪防止具を備えた標識装置」や特許第５８２４２１７号公報(特許文献２)の「交通信号用灯器」が公知となっている。特許文献１の標識装置は、垂直線に対して僅かに前傾して取付けられた標識板の前面に、標識板の傾斜角度より大きく前傾状態で透明部材を取付けると共に透明部材の上方を、風のよどみを防止する曲面形状として着雪防止をしたものである。また、特許文献２の交通信号用灯器は、庇状フードを設けず、発光部の前方を覆い、前方に突出した凸形状を有する透光性のドーム部であって、ドーム部の内面の少なくとも上部側から側方側にかけて発光部寄りに暗色部有するドーム部を備え、ドーム部の暗色部によって、発光部の光が吸収され且つ上面視および側面視において遮光範囲が設けられた交通信号用灯器である。これによれば、庇状フードを取付けない結果、吹雪であっても庇状フードが集雪器として作用したり、衝立として作用して吹き込んでる雪の着雪を促進させない。また、カバー部の内面に発光部寄りに暗色部を設けたことで、発光部から発せられた光を吸収して熱に換え融雪を促す。というものである。 In order to solve the above problems, various methods have been conventionally proposed. For example, "marking device provided with snow accretion preventive device" of Japanese Patent Laid-Open No. 9-264011 (Patent Document 1) and "traffic signal light device" of Japanese Patent No. 5824217 (Patent Document 2) have become known. There is. The sign device of Patent Document 1 mounts the transparent member on the front surface of the sign plate that is attached to be tilted slightly forward with respect to the vertical line in a state of being tilted forward and is larger than the tilt angle of the sign plate, and above the transparent member. It has a curved surface that prevents stagnation of the wind and prevents snow from accumulating. In addition, the traffic signal lamp of Patent Document 2 is a translucent dome portion that is provided with no eaves-shaped hood, covers the front of the light emitting portion, and has a convex shape that protrudes forward. For traffic signals that has a dome portion that has a dark color portion near the light emitting portion from at least the upper side to the side side, and that the light of the light emitting portion is absorbed by the dark color portion of the dome and a light-shielding range is provided in top and side views. It is a lamp. According to this, as a result of not mounting the eaves-shaped hood, the eaves-shaped hood does not act as a snow collector even when snow is blowing, or does not act as a screen to promote snow landing. In addition, since the dark color portion is provided on the inner surface of the cover portion near the light emitting portion, the light emitted from the light emitting portion is absorbed and converted into heat to promote snow melting. That is.

特開平９−２６４０１１号公報JP, 9-264011, A 特許第５８２４２１７号公報Japanese Patent No. 5824217

特許文献１、特許文献２の従来の装置は、信号灯の前部にカバーを設ける構成である。この構造の場合、カバー内に埃等が付着すると内外の掃除を定期的に行わなければならず、メンテナンス作業が面倒である。また、レンズよりカバー部が前方に突設しているため、側方側からの視認性が劣る場合がある。さらに、カバー面に吹き付ける雪は、様々な環境状況によって性質が異なり、吹付方向や吹付速度も多様に変化するため、カバー表面への付着が避けられないという問題がある。 The conventional devices of Patent Document 1 and Patent Document 2 have a configuration in which a cover is provided on the front portion of the signal light. In the case of this structure, if dust or the like adheres to the inside of the cover, the inside and outside of the cover must be regularly cleaned, which makes maintenance work troublesome. Further, since the cover portion projects from the lens forward, visibility from the side may be poor. Further, since the properties of the snow sprayed on the cover surface vary depending on various environmental conditions, and the spraying direction and spraying speed also change in various ways, there is a problem that adhesion to the cover surface cannot be avoided.

本発明の目的は、このような問題を解決するためになされたもので、交通信号灯の表示灯レンズ部への着雪を確実に防止できて、メンテナンスも容易な構造の交通信号灯を提供することにある。 An object of the present invention is to solve such a problem, and to provide a traffic signal lamp having a structure capable of reliably preventing snow from accumulating on the indicator lamp lens portion of the traffic signal lamp and easily maintained. It is in.

上記課題を解決するために、請求項1記載の発明は、ＬＥＤを発光元とする交通信号灯において、該交通信号灯の灯器を構成するレンズ部に送風する送風部を設け、前記送風部は交通信号灯の後面側に、モータによって回転され、下方を向いて開口した空気取り入れ口から空気を吸い込むとともに風を発生させるファンを設け、前記ファン及び前記モータは、前記送風部のケース内に設け、前記風を吹出し口からレンズ部の表面に均等に吹き付けるために、前記ケース内に設けた整流板によって分流し、前記吹出し口側は側面視コ字状に形成された凹部を設け、前記交通信号灯の上面部に引っ掻け、前記風は交通信号灯の上部を通過して前記レンズ部上部に設けた前記吹出し口から前記レンズ部の表面に吹き付けることを特徴とした交通信号灯である。 In order to solve the above-mentioned problems, the invention according to claim 1 is a traffic signal light whose light source is an LED, and is provided with a blower part for blowing air to a lens part constituting a lamp of the traffic signal light, and the blower part is a traffic light Provided on the rear surface side of the signal light is a fan which is rotated by a motor and sucks air from an air intake opening opened downward and generates wind, and the fan and the motor are provided in a case of the blower unit, and In order to evenly blow the air from the air outlet onto the surface of the lens portion, the air is diverted by a rectifying plate provided in the case, and the air outlet side is provided with a concave portion formed in a U shape in a side view. The traffic signal lamp is characterized by being scratched on the upper surface portion and passing the upper portion of the traffic signal lamp and being blown onto the surface of the lens portion from the outlet provided in the upper portion of the lens portion .

また、請求項２記載の発明は、前記送風部は、前記レンズ部と略平行に送風を行うことを特徴とした請求項１に記載の交通信号灯である。
The invention according to claim 2 is the traffic signal lamp according to claim 1, wherein the air blower blows air substantially in parallel with the lens portion .

また、請求項３の発明は、前記送風部には、送風する風を温めるヒータが設けられていることを特徴とした請求項１又は請求項２に記載の何れかの交通信号灯である。 Further, the invention of claim 3 is the traffic signal lamp according to claim 1 or claim 2, wherein the air blower is provided with a heater for warming the air to be blown.

さらに、請求項４の発明は、前記送風部からの送風は、外気温を感知してＯＮ・ＯＦＦが行われるように制御されていることを特徴とした請求項１乃至請求項３に記載の何れかの交通信号灯である。 Furthermore, the invention of claim 4 is characterized in that the air blown from the air blower is controlled so as to be turned on and off by sensing the outside air temperature. Any of the traffic lights.

この発明によれば、交通信号灯に送風部を設け、レンズ外面に送風することによって、付着しようとする雪を確実に吹き飛ばすことができる。また、レンズ外面に略平行に送風が行われることによって、レンズ部にはエアカーテンのような作用が働き着雪が防止される。また、送風部に、送付する風を温めるヒータが設けられていることにより、レンズ部に吹き付ける暖かい風によって、雪を確実に溶かすと共に払いのけることができる。さらに、送風は、外気温を感知してＯＮ・ＯＦＦが行われるように制御されていることによって電力消費を抑える効果がある。 According to the present invention, the traffic signal lamp is provided with the air blower and the air is blown to the outer surface of the lens, so that the snow that adheres can be surely blown off. Further, since air is blown substantially parallel to the outer surface of the lens, the lens portion acts like an air curtain to prevent snow accretion. Further, since the air blower is provided with the heater for warming the air to be blown, the warm air blown to the lens portion can surely melt and remove the snow. Further, the blown air is controlled so that it is turned on/off by sensing the outside air temperature, so that it has an effect of suppressing power consumption.

本発明の実施例の交通信号灯に取付けた状態の送風部を断面した要部側面図である。It is a principal part side view which cross-sectioned the ventilation part in the state attached to the traffic signal light of the Example of this invention. 本発明の実施例の交通信号灯に取付けた状態の送風部を断面した後面図である。It is a rear view which cross-sectioned the ventilation part in the state attached to the traffic light of the Example of this invention. 本発明の実施例の送風部の吹出し口部を断面した正面図である。It is the front view which crossed the outlet part of the ventilation part of the Example of this invention. 本発明の実施例の正面側の斜視図である。It is a front perspective view of the example of the present invention. 本発明の実施例の後面側の斜視図である。It is a rear perspective view of an example of the present invention.

実施の一形態を、図１乃至図５に基づいて説明する。図１は本発明の実施例の交通信号灯に取付けた状態の送風部を断面した要部側面図、図２は本発明の実施例の交通信号灯に取付けた状態の送風部を断面した後面図、図３は本発明の実施例の送風部の吹出し口部を断面した正面図、図４は本発明の実施例の正面側から見た斜視図、図５は本発明の実施例の後面側からの見た斜視図である。 An embodiment will be described with reference to FIGS. 1 to 5. FIG. 1 is a side view of an essential part of a cross section of an air blower attached to a traffic signal light according to an embodiment of the present invention, and FIG. 2 is a rear view of a cross section of the air blower attached to a traffic signal light according to an embodiment of the present invention. FIG. 3 is a front view of the blower section of the embodiment of the present invention in cross section, a perspective view of the embodiment of the present invention seen from the front side, and FIG. 5 is a rear side of the embodiment of the present invention. FIG.

ここで示す交通信号灯は、横型のＬＥＤ３灯式の場合を示す。支柱（図示せず）に支持部材を介して取付けられる交通信号灯１は、その前面に円形のレンズ部１０を設け、その内部に発光元であるＬＥＤが組み込まれている。 The traffic signal light shown here is of a lateral LED 3 light type. A traffic signal lamp 1 mounted on a pillar (not shown) via a supporting member is provided with a circular lens portion 10 on its front surface, and an LED as a light emitting source is incorporated therein.

レンズ部１０には、送風部２がそれぞれ設けられている。送風部２は、レンズ部１０の上部からレンズ部１０と平行に風を下方に吹き付け、付着しようとする雪を吹き飛ばす。図１に示すように、送風部２は交通信号灯１の後面側に吹き付ける風を発生させるファン２０が設けられ、ファン２０はモータ２４により回転され、下方を向いて開口した空気取り入れ口２１から空気を吸い込む。吸い込まれた空気は、交通信号灯１の上部を通過してレンズ部１０の上部に設けた吹出し口２２からレンズ部１０に吹き付けられる。ファン２０及びモータ２４は、送風部２のケース内に設けられ、側面視コ字状に形成された吹出し口２２側の凹部を交通信号灯１の上面部に引っ掻けるように取付ける。 The lens unit 10 is provided with a blower unit 2, respectively. The blower unit 2 blows air downward from the upper portion of the lens unit 10 in parallel with the lens unit 10 to blow off the snow that is trying to adhere. As shown in FIG. 1, the blower unit 2 is provided with a fan 20 for generating wind to be blown to the rear surface side of the traffic signal light 1. The fan 20 is rotated by a motor 24 and is blown from an air intake port 21 which is opened downward. Inhale. The sucked air passes through the upper part of the traffic signal light 1 and is blown onto the lens part 10 from the outlet 22 provided on the upper part of the lens part 10. The fan 20 and the motor 24 are provided in the case of the blower unit 2 and are attached so that the recessed portion on the side of the outlet 22 formed in a U shape in side view can be scratched on the upper surface of the traffic signal lamp 1.

図２、図３に示すように、送風部２のケース内のファン２０によって発生させた風は、矢印で示すようにケース内に設けた整流板２５によって分流されて、交通信号灯１の上部を通過してレンズ部１０の表面に均等に吹き付けられる。 As shown in FIGS. 2 and 3, the wind generated by the fan 20 in the case of the blower unit 2 is shunted by the rectifying plate 25 provided in the case as shown by the arrow, and the upper part of the traffic signal light 1 is blown. It passes and is evenly sprayed on the surface of the lens unit 10.

本例の場合、ファン２０から送風された風の下流側には、送風される風を可温するためのヒータ２３が設けられる。ヒータ２３を設けることによって、レンズ部１０に吹き付ける風の温度を上昇させることができるので、付着しようとする雪を吹き飛ばすと共に、熔解させて付着をより効果的に防止することができる。 In the case of this example, a heater 23 for warming the blown air is provided on the downstream side of the air blown by the fan 20. By providing the heater 23, the temperature of the wind blown to the lens portion 10 can be raised, so that the snow to be adhered can be blown off and the snow can be melted to prevent the adherence more effectively.

送風部２の取り付けは、ファン２０を内蔵したケース部を交通信号灯１本体から水平に立ち上げて設けた取付けネジ２６で固定して取付ける。 The blower unit 2 is attached by fixing the case portion containing the fan 20 with a mounting screw 26 provided by standing up horizontally from the main body of the traffic light 1.

送風部２からの送風は、外気温を検知してＯＮ・ＯＦＦが行われるように制御されている。制御部（図示せず）は、外気温を検知して一定の温度以下になるとファン２０のモータ２４を作動させ、レンズ部１０に送風する。このように制御することによって、レンズ部１０への雪の付着が起こらない環境下での不必要な送風がされず、電力消費を抑えることができる。 The blown air from the blower unit 2 is controlled so that the outside air temperature is detected and turned on and off. A control unit (not shown) detects the outside air temperature and when the temperature falls below a certain temperature, operates the motor 24 of the fan 20 to blow air to the lens unit 10. By controlling in this manner, unnecessary air is not blown in an environment where snow does not adhere to the lens unit 10, and power consumption can be suppressed.

なお、交通信号灯が縦型の場合は、本例の横型と同様に送風部を取付け、交通信号灯を縦に設置して、横方向にレンズ部に送風すると同様の効果が得られる。 When the traffic signal light is of a vertical type, the same effect can be obtained by installing the air blower as in the case of the horizontal type of this example, installing the traffic signal light vertically, and blowing the lens section horizontally.

本例において、送風部２は３灯式のレンズ部１０それぞれに設けているが、それぞれを一体にして一つ設けてもよい。また、送風ファン２０を一つにして３か所に分流して送風してもよい。 In this example, the blower unit 2 is provided for each of the three-lamp type lens units 10, but one unit may be provided for each unit. Alternatively, the blower fan 20 may be integrated into one and divided into three locations to blow air.

この発明は、降雪地域の交通信号灯等の標識板への着雪を防止して、表示の視認性の低下を防止することに利用できる。 INDUSTRIAL APPLICABILITY The present invention can be used to prevent snow from accumulating on a sign plate such as a traffic signal light in a snowfall area, thereby preventing a reduction in visibility of a display.

１交通信号灯
１０レンズ部
２送風部
２０ファン
２１空気取入口
２２吹出し口
２３ヒータ
２４モータ
２５整流版
２６取付ネジ 1 Traffic Signal Light 10 Lens Part 2 Blower Part 20 Fan 21 Air Intake 22 Outlet 23 Heater 24 Motor 25 Rectifier 26 Mounting Screw

Claims

In a traffic signal light whose light source is an LED, an air blower is provided for blowing air to a lens portion that constitutes a lamp of the traffic light, and the air blower is rotated by a motor on the rear surface side of the traffic light to open downward. A fan that sucks air from the air intake port and generates a wind is provided, the fan and the motor are provided in the case of the blower unit, and the wind is evenly blown from the blowout port to the surface of the lens unit. The flow is divided by a straightening plate provided in the case, the outlet side is provided with a concave portion formed in a U shape in a side view, scratched on the upper surface of the traffic signal light, and the wind passes above the traffic signal light. Then, the traffic signal lamp is characterized in that the air is blown onto the surface of the lens portion from the outlet provided on the upper portion of the lens portion .

The traffic light according to claim 1, wherein the air blower blows air substantially in parallel with the lens portion .

The traffic light according to claim 1, wherein the air blower is provided with a heater for warming the air to be blown.

The traffic signal light according to any one of claims 1 to 3, wherein the blown air from the blower unit is controlled so as to be turned on/off by sensing an outside air temperature.