JP2021089837A - Vehicular lamp fitting - Google Patents

Vehicular lamp fitting Download PDF

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JP2021089837A
JP2021089837A JP2019219333A JP2019219333A JP2021089837A JP 2021089837 A JP2021089837 A JP 2021089837A JP 2019219333 A JP2019219333 A JP 2019219333A JP 2019219333 A JP2019219333 A JP 2019219333A JP 2021089837 A JP2021089837 A JP 2021089837A
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optical member
lamp
light
led
motorcycle
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JP7389633B2 (en
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圭佑 藤井
Keisuke Fujii
圭佑 藤井
創太 渡辺
Sota Watanabe
創太 渡辺
裕次 仲野
Yuji Nakano
裕次 仲野
手塚　伸孝
Nobutaka Tezuka
伸孝 手塚
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Koito Manufacturing Co Ltd
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Koito Manufacturing Co Ltd
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Abstract

To provide a compact vehicular lamp fitting.SOLUTION: A lamp fitting 10 for a two-wheel vehicle includes: headlight units 12 each including a first LED 22 and a first optical member 26 which controls light distribution of light emitted from the first LED 22; and clearance lamps 14 each including a second LED 28 and a second optical member 30 which controls light distribution of light emitted from the second LED 28. The first optical member 26 and the second optical member 30 are integrally molded.SELECTED DRAWING: Figure 5

Description

本発明は、車両用灯具に関し、特に二輪車に用いられる車両用灯具に関する。 The present invention relates to vehicle lamps, and more particularly to vehicle lamps used for motorcycles.

従来、二輪車用の前照灯およびターンシグナルランプ等の標識灯として、特許文献１に開示されたものが知られている。 Conventionally, as indicator lamps such as headlights and turn signal lamps for motorcycles, those disclosed in Patent Document 1 are known.

特開２０１１−１５２８５７号公報Japanese Unexamined Patent Publication No. 2011-152857

ところで、二輪車用の灯具は、四輪車用の灯具と比較してコンパクトな灯具が求められる。 By the way, a lamp for a two-wheeled vehicle is required to be more compact than a lamp for a four-wheeled vehicle.

本発明はこうした状況に鑑みてなされたものであり、その目的は、コンパクトな車両用灯具を提供することにある。 The present invention has been made in view of these circumstances, and an object of the present invention is to provide a compact vehicle lamp.

上記課題を解決するために、本発明のある態様の車両用灯具は、第１光源と、第１光源から出射された光の配光を制御する第１光学部材とを備える前照灯ユニットと、第２光源と、第２光源から出射された光の配光を制御する第２光学部材とを備える標識灯ユニットと、を備える。第１光学部材と第２光学部材とは一体成形される。 In order to solve the above problems, a vehicle lamp according to an embodiment of the present invention includes a headlight unit including a first light source and a first optical member that controls light distribution of light emitted from the first light source. , A indicator lamp unit including a second light source and a second optical member that controls the light distribution of the light emitted from the second light source. The first optical member and the second optical member are integrally molded.

第２光学部材は、光拡散材を含有してもよい。第１光学部材と第２光学部材は、二色成形により一体成形されてもよい。 The second optical member may contain a light diffusing material. The first optical member and the second optical member may be integrally molded by two-color molding.

第１光学部材は、第１光源から出射された光の配光を制御するレンズ部と、レンズ部の縁部から延在する延在部とを含んでもよい。第２光学部材は、延在部の裏面に設けられてもよい。 The first optical member may include a lens portion that controls the light distribution of light emitted from the first light source, and an extending portion that extends from the edge portion of the lens portion. The second optical member may be provided on the back surface of the extending portion.

延在部は、第２光学部材が裏面に設けられた延在部の部分と、レンズ部の縁部との間に、ダミーレンズ部を有してもよい。 The extending portion may have a dummy lens portion between the extending portion provided on the back surface of the second optical member and the edge portion of the lens portion.

本発明によれば、コンパクトな車両用灯具を提供できる。 According to the present invention, it is possible to provide a compact vehicle lamp.

本発明の実施形態に係る二輪車用灯具を備える二輪車の斜視図である。It is a perspective view of the motorcycle provided with the lighting equipment for a motorcycle which concerns on embodiment of this invention. 二輪車の正面図である。It is a front view of a motorcycle. 図２に示す二輪車用灯具のＡ−Ａ水平断面図である。FIG. 2 is a horizontal sectional view taken along the line AA of the two-wheeled vehicle lamp shown in FIG. 図２に示す二輪車用灯具のＢ−Ｂ垂直断面図である。FIG. 2 is a vertical sectional view taken along the line BB of the two-wheeled vehicle lamp shown in FIG. 前照灯ユニットおよびクリアランスランプの拡大水平断面図である。It is an enlarged horizontal sectional view of a headlight unit and a clearance lamp.

以下、図面を参照しながら、本発明を実施するための形態について詳細に説明する。なお、図面の説明において同一の要素には同一の符号を付し、重複する説明を適宜省略する。また、本明細書において「上」、「下」、「前」、「後」、「左」、「右」、「内」、「外」等の方向を表す用語が用いられる場合、それらは灯具が車両に装着されたときの姿勢における方向を意味する。 Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same elements are designated by the same reference numerals, and duplicate description will be omitted as appropriate. In addition, when terms such as "top", "bottom", "front", "rear", "left", "right", "inside", and "outside" are used in the present specification, they are used. It means the direction in the posture when the lamp is mounted on the vehicle.

本発明の実施形態に係る車両用灯具は、二輪車に用いられる二輪車用灯具である。図１は、本発明の実施形態に係る二輪車用灯具１０を備える二輪車１００の斜視図である。図２は、二輪車１００の正面図である。 The vehicle lighting fixture according to the embodiment of the present invention is a two-wheeled vehicle lighting fixture used for a two-wheeled vehicle. FIG. 1 is a perspective view of a motorcycle 100 including a motorcycle lamp 10 according to an embodiment of the present invention. FIG. 2 is a front view of the motorcycle 100.

本実施形態に係る二輪車用灯具１０は、二輪車１００の前方に配置される。二輪車用灯具１０は、ハイビームおよびロービームを照射可能な前照灯ユニット１２と、クリアランスランプ１４とを備える。また、二輪車１００のサイドカウル１０２には、ターンシグナルランプ１６が配置されている。 The two-wheeled vehicle lamp 10 according to the present embodiment is arranged in front of the two-wheeled vehicle 100. The motorcycle lamp 10 includes a headlight unit 12 capable of irradiating a high beam and a low beam, and a clearance lamp 14. Further, a turn signal lamp 16 is arranged on the side cowl 102 of the motorcycle 100.

二輪車１００のボディ１０６の下部には、路面描画用ランプ２０が配置されている。路面描画用ランプ２０は、二輪車前方の路面上に路面描画パターンを投影（照射）するための構成を備えている。路面描画用ランプ２０としては、例えば、プロジェクタが挙げられる。路面描画用ランプ２０は、二輪車の周囲から視認されにくい位置に配置されていることが好ましい。 A road surface drawing lamp 20 is arranged below the body 106 of the motorcycle 100. The road surface drawing lamp 20 has a configuration for projecting (irradiating) a road surface drawing pattern on the road surface in front of the two-wheeled vehicle. Examples of the road surface drawing lamp 20 include a projector. The road surface drawing lamp 20 is preferably arranged at a position where it is difficult to see from the surroundings of the motorcycle.

二輪車１００の車幅方向の中央には、二輪車１００の前端部から運転者席側まで延在するようにコミュニケーションランプ１８が配置されている。コミュニケーションランプ１８としては、有機ＥＬディスプレイや液晶ディスプレイなどの薄型ディスプレイを好適に用いることができる。あるいは、コミュニケーションランプ１８は、個別に点消灯が可能な複数のＬＥＤがアレイ状に配置されたものであってもよい。 A communication lamp 18 is arranged at the center of the motorcycle 100 in the vehicle width direction so as to extend from the front end of the motorcycle 100 to the driver's seat side. As the communication lamp 18, a thin display such as an organic EL display or a liquid crystal display can be preferably used. Alternatively, the communication lamp 18 may be one in which a plurality of LEDs that can be individually turned on and off are arranged in an array.

コミュニケーションランプ１８は、二輪車１００の前方から視認可能であり、二輪車１００の状態情報を他車や歩行者に伝えるための灯具である。コミュニケーションランプ１８は、他のランプとは異なり、歩行者や他車の運転者に眩しさを与えない程度の光度で発光することが好ましい。コミュニケーションランプ１８は、例えばターンシグナルランプ１６と連動して、二輪車１００の進行方向を矢印など用いて表示してもよい。コミュニケーションランプ１８は、例えば横断歩道で二輪車１００が停止しているときに、歩行者に横断を促すための表示（例えば横向きの矢印など）を行ってもよい。 The communication lamp 18 is visible from the front of the motorcycle 100, and is a lamp for transmitting the state information of the motorcycle 100 to other vehicles and pedestrians. Unlike other lamps, the communication lamp 18 preferably emits light with a luminosity that does not give glare to pedestrians or drivers of other vehicles. The communication lamp 18 may display the traveling direction of the motorcycle 100 by using an arrow or the like in conjunction with the turn signal lamp 16, for example. The communication lamp 18 may display a display (for example, a sideways arrow) for urging a pedestrian to cross, for example, when the motorcycle 100 is stopped at a pedestrian crossing.

図３は、図２に示す二輪車用灯具１０のＡ−Ａ水平断面図である。図４は、図２に示す二輪車用灯具１０のＢ−Ｂ垂直断面図である。図３および図４を参照して、前照灯ユニット１２およびクリアランスランプ１４の構成を説明する。 FIG. 3 is a horizontal sectional view taken along the line AA of the two-wheeled vehicle lamp 10 shown in FIG. FIG. 4 is a vertical sectional view taken along the line BB of the two-wheeled vehicle lamp 10 shown in FIG. The configuration of the headlight unit 12 and the clearance lamp 14 will be described with reference to FIGS. 3 and 4.

前照灯ユニット１２は、正面視で二輪車用灯具１０の左右に配置される。二輪車用灯具１０は、光源としての第１ＬＥＤ２２と、第１ＬＥＤ２２からの熱を放熱するためのヒートシンク２４と、第１ＬＥＤ２２から出射された光の配光を制御する第１光学部材２６とを備える。 The headlight unit 12 is arranged on the left and right sides of the two-wheeled vehicle lamp 10 in a front view. The motorcycle lamp 10 includes a first LED 22 as a light source, a heat sink 24 for radiating heat from the first LED 22, and a first optical member 26 for controlling the light distribution of the light emitted from the first LED 22.

クリアランスランプ１４は、左右の前照灯ユニット１２の下方および側方を囲むように配置および構成される。クリアランスランプ１４は、デイタイムランニングランプとしても機能する。クリアランスランプ１４は、光源としての第２ＬＥＤ２８と、第２ＬＥＤ２８から出射された光の配光を制御する第２光学部材３０とを備える。 The clearance lamp 14 is arranged and configured so as to surround the lower side and the side of the left and right headlight units 12. The clearance lamp 14 also functions as a daytime running lamp. The clearance lamp 14 includes a second LED 28 as a light source and a second optical member 30 that controls the light distribution of the light emitted from the second LED 28.

図５は、前照灯ユニット１２およびクリアランスランプ１４の拡大水平断面図である。本実施形態に係る二輪車用灯具１０においては、前照灯ユニット１２の第１光学部材２６と、クリアランスランプ１４の第２光学部材３０とが一体成形される。これにより、第１光学部材２６と第２光学部材３０とを別体とした場合と比較して、二輪車用灯具１０をよりコンパクトにできる。 FIG. 5 is an enlarged horizontal sectional view of the headlight unit 12 and the clearance lamp 14. In the motorcycle lamp 10 according to the present embodiment, the first optical member 26 of the headlight unit 12 and the second optical member 30 of the clearance lamp 14 are integrally molded. As a result, the two-wheeled vehicle lamp 10 can be made more compact as compared with the case where the first optical member 26 and the second optical member 30 are separated.

第１光学部材２６は、第１ＬＥＤ２２から出射された光の配光を制御するレンズ部２６ａと、レンズ部２６ａの縁部２６ｂから延在する延在部２６ｃとを含む。レンズ部２６ａは、第１ＬＥＤ２２からの光を受ける入射面２６ｄと、光を灯具前方に出射する出射面２６ｅとを有する。 The first optical member 26 includes a lens portion 26a that controls the light distribution of the light emitted from the first LED 22, and an extending portion 26c that extends from the edge portion 26b of the lens portion 26a. The lens unit 26a has an incident surface 26d that receives the light from the first LED 22, and an emitting surface 26e that emits the light to the front of the lamp.

第２光学部材３０は、第２ＬＥＤ２８からの光を端部の入射面３０ａから内部に入射して導光し、発光面３０ｂから出射する導光体として構成されている。本実施形態において、第２光学部材３０は、延在部２６ｃの裏面２６ｆに設けられている。より詳細には、延在部２６ｃの裏面２６ｆの一部と、第２光学部材３０の発光面３０ｂの一部とが当接した状態となっている。 The second optical member 30 is configured as a light guide body that light from the second LED 28 is incident on the inside from the incident surface 30a at the end to guide the light, and is emitted from the light emitting surface 30b. In the present embodiment, the second optical member 30 is provided on the back surface 26f of the extending portion 26c. More specifically, a part of the back surface 26f of the extending portion 26c and a part of the light emitting surface 30b of the second optical member 30 are in contact with each other.

第２光学部材３０は、内部に光拡散材を含有する。光拡散材としては、金属酸化物粒子、例えば二酸化チタン粒子を挙げることができる。二酸化チタン粒子の平均粒径は、例えば１５０〜５００ｎｍ、好ましくは１６０〜４５０ｎｍ、より好ましくは１７０〜４５０ｎｍ、さらに好ましくは２００〜４００ｎｍ、特に好ましくは２２０〜４００ｎｍであってよい。光拡散材の含有量は、第２光学部材３０の質量全体に対して例えば０．１〜１００質量ｐｐｍ、好ましくは０．１〜５０質量ｐｐｍ、より好ましくは０．１〜１０質量ｐｐｍであってよい。二酸化チタン粒子は、ルチル変態の割合が例えば５０質量％以上、好ましくは６０質量％以上、より好ましくは７０質量％以上、さらに好ましくは９０質量％以上であってよい。第２光学部材３０には、用いられる樹脂の主要モノマーと共重合可能な他のモノマーや、帯電防止剤、酸化防止剤、離型剤、難燃剤、潤滑剤、流動性改善剤、充填剤、光安定剤等の一般的な添加剤が含有されてもよい。 The second optical member 30 contains a light diffusing material inside. Examples of the light diffusing material include metal oxide particles, for example, titanium dioxide particles. The average particle size of the titanium dioxide particles may be, for example, 150 to 500 nm, preferably 160 to 450 nm, more preferably 170 to 450 nm, still more preferably 200 to 400 nm, and particularly preferably 220 to 400 nm. The content of the light diffusing material is, for example, 0.1 to 100 mass ppm, preferably 0.1 to 50 mass ppm, and more preferably 0.1 to 10 mass ppm with respect to the total mass of the second optical member 30. You can. The ratio of rutile transformation of the titanium dioxide particles may be, for example, 50% by mass or more, preferably 60% by mass or more, more preferably 70% by mass or more, and further preferably 90% by mass or more. The second optical member 30 includes other monomers copolymerizable with the main monomer of the resin used, antistatic agents, antioxidants, mold release agents, flame retardants, lubricants, fluidity improvers, fillers, and the like. Common additives such as light stabilizers may be included.

本実施形態において、第１光学部材２６は透明な樹脂を用いて形成され、第２光学部材３０は光拡散材を含有する樹脂を用いて形成される。異なる材質の樹脂を一体に成形するために、第１光学部材２６と第２光学部材３０は二色成形により一体成形されてよい。 In the present embodiment, the first optical member 26 is formed using a transparent resin, and the second optical member 30 is formed using a resin containing a light diffusing material. In order to integrally mold resins of different materials, the first optical member 26 and the second optical member 30 may be integrally molded by two-color molding.

本実施形態において、延在部２６ｃは、第２光学部材３０が裏面２６ｆに設けられた延在部２６ｃの部分と、レンズ部２６ａの縁部２６ｂとの間に、ダミーレンズ部２６ｇを有する。「ダミーレンズ」とは、外観はレンズのように見えるが、レンズとしての光を制御する機能は有していないという意味である。このようなダミーレンズ部２６ｇを設けることにより、前照灯ユニット１２とクリアランスランプ１４の境界を明確にすることができる。 In the present embodiment, the extending portion 26c has a dummy lens portion 26g between the portion of the extending portion 26c in which the second optical member 30 is provided on the back surface 26f and the edge portion 26b of the lens portion 26a. The "dummy lens" means that although the appearance looks like a lens, it does not have a function of controlling light as a lens. By providing such a dummy lens portion 26g, the boundary between the headlight unit 12 and the clearance lamp 14 can be clarified.

以上説明したように、本実施形態に係る二輪車用灯具１０では、異なる２つの灯具ユニットの光学部材、すなわち前照灯ユニット１２の第１光学部材２６とクリアランスランプ１４の第２光学部材３０を一体成形した。これにより、第１光学部材２６と第２光学部材３０とを別体とした場合と比較して、二輪車用灯具１０をよりコンパクトにできる。 As described above, in the motorcycle lamp 10 according to the present embodiment, the optical members of the two different lamp units, that is, the first optical member 26 of the headlight unit 12 and the second optical member 30 of the clearance lamp 14 are integrated. Molded. As a result, the two-wheeled vehicle lamp 10 can be made more compact as compared with the case where the first optical member 26 and the second optical member 30 are separated.

また、本実施形態に係る二輪車用灯具１０によれば、第１光学部材２６と第２光学部材３０を一体成形したことにより、部品点数が減るので、組み立て工数を削減することができる。 Further, according to the two-wheeled vehicle lamp 10 according to the present embodiment, the number of parts is reduced by integrally molding the first optical member 26 and the second optical member 30, so that the assembly man-hours can be reduced.

以上、実施の形態をもとに本発明を説明した。これらの実施形態は例示であり、各構成要素や各処理プロセスの組合せにいろいろな変形例が可能なこと、またそうした変形例も本発明の範囲にあることは当業者に理解されるところである。 The present invention has been described above based on the embodiments. These embodiments are examples, and it will be understood by those skilled in the art that various modifications are possible for each component and combination of each processing process, and that such modifications are also within the scope of the present invention.

上述の実施形態では、二輪車用の二輪車用灯具を例として本発明を説明したが、本発明に係る車両用灯具は、二輪車用に限定されず、四輪車にも適用可能である。 In the above-described embodiment, the present invention has been described by taking a two-wheeled vehicle lighting device for a two-wheeled vehicle as an example, but the vehicle lighting device according to the present invention is not limited to the two-wheeled vehicle and can be applied to a four-wheeled vehicle.

１０ 二輪車用灯具、 １２ 前照灯ユニット、 １４ クリアランスランプ、 １６ ターンシグナルランプ、 １８ コミュニケーションランプ、 ２０ 路面描画用ランプ、 ２２ 第１ＬＥＤ、 ２４ ヒートシンク、 ２６ 第１光学部材、 ２８ 第２ＬＥＤ、 ３０ 第２光学部材、１００ 二輪車、 １０２ サイドカウル、 １０６ ボディ。 10 Motorcycle lighting, 12 Headlight unit, 14 Clearance lamp, 16 Turn signal lamp, 18 Communication lamp, 20 Road surface drawing lamp, 22 1st LED, 24 Heat sink, 26 1st optical member, 28 2nd LED, 30 2nd Optical components, 100 motorcycles, 102 side cowls, 106 bodies.

Claims (5)

第１光源と、前記第１光源から出射された光の配光を制御する第１光学部材とを備える前照灯ユニットと、
第２光源と、前記第２光源から出射された光の配光を制御する第２光学部材とを備える標識灯ユニットと、
を備え、
前記第１光学部材と前記第２光学部材とが一体成形されたことを特徴とする車両用灯具。 A headlight unit including a first light source and a first optical member that controls light distribution of light emitted from the first light source.
An indicator light unit including a second light source and a second optical member that controls the light distribution of the light emitted from the second light source.
With
A vehicle lamp characterized in that the first optical member and the second optical member are integrally molded. 前記第２光学部材は、光拡散材を含有することを特徴とする請求項１に記載の車両用灯具。 The vehicle lamp according to claim 1, wherein the second optical member contains a light diffusing material. 前記第１光学部材と前記第２光学部材は、二色成形により一体成形されることを特徴とする請求項１または２に記載の車両用灯具。 The vehicle lamp according to claim 1 or 2, wherein the first optical member and the second optical member are integrally molded by two-color molding. 前記第１光学部材は、前記第１光源から出射された光の配光を制御するレンズ部と、前記レンズ部の縁部から延在する延在部とを含み、
前記第２光学部材は、前記延在部の裏面に設けられ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車両用灯具。 The first optical member includes a lens portion that controls the light distribution of light emitted from the first light source, and an extending portion that extends from an edge portion of the lens portion.
The vehicle lamp according to any one of claims 1 to 3, wherein the second optical member is provided on the back surface of the extending portion. 前記延在部は、前記第２光学部材が裏面に設けられた前記延在部の部分と、前記レンズ部の縁部との間に、ダミーレンズ部を有することを特徴とする請求項４に記載の車両用灯具。 The fourth aspect of the present invention is characterized in that the extending portion has a dummy lens portion between a portion of the extending portion provided on the back surface of the second optical member and an edge portion of the lens portion. The listed vehicle optics.
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JP2010118241A (en) * 2008-11-12 2010-05-27 Koito Mfg Co Ltd Vehicular lighting fixture
JP2014216164A (en) * 2013-04-25 2014-11-17 スタンレー電気株式会社 Lighting appliance unit of vehicle lighting appliance
JP2015088375A (en) * 2013-10-31 2015-05-07 本田技研工業株式会社 Lamp
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