JP6286752B2 - Vehicle lighting device - Google Patents

Vehicle lighting device Download PDF

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Publication number
JP6286752B2
JP6286752B2 JP2016083501A JP2016083501A JP6286752B2 JP 6286752 B2 JP6286752 B2 JP 6286752B2 JP 2016083501 A JP2016083501 A JP 2016083501A JP 2016083501 A JP2016083501 A JP 2016083501A JP 6286752 B2 JP6286752 B2 JP 6286752B2
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Prior art keywords
light guide
light
guide body
extension leg
vehicle
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JP2017195047A (en
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直人 井上
直人 井上
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Priority to JP2016083501A priority Critical patent/JP6286752B2/en
Priority to CN201710252997.3A priority patent/CN107305000B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/32—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating vehicle sides, e.g. clearance lights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/237—Light guides characterised by the shape of the light guide rod-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/247—Light guides with a single light source being coupled into the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/27—Attachment thereof

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Planar Illumination Modules (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

本発明は、車両用照光装置に関するものである。   The present invention relates to a vehicle illumination device.

車両には、ポジションランプやサイドターンランプ等の照光装置が装備されている。ポジションランプ等の車両用照光装置として、光源から発された光を導光体によって所望の領域に誘導し、導光体の外面を透過する光を外部に照射するものが開発されている。この車両用照光装置においては、導光体はリフレクタ等の別体の被取付部材に取り付けられている。（例えば、特許文献１参照）   Vehicles are equipped with illumination devices such as position lamps and side turn lamps. A vehicle illumination device such as a position lamp has been developed that guides light emitted from a light source to a desired region by a light guide and irradiates light transmitted through the outer surface of the light guide to the outside. In this vehicle illumination device, the light guide is attached to a separate attached member such as a reflector. (For example, see Patent Document 1)

特開２０１４−２０３５４７号公報JP 2014-203547 A

特許文献１に記載の車両用照光装置のように、リフレタク等の別体の被取付部材に大型の導光体を取り付ける場合には、車両表面側に露出して光を外部に照射する導光体本体に複数の支持脚を長手方向に離間させて複数設け、複数の支持脚を被取付部材に対して固定することがある。   When a large light guide is attached to a separate attached member such as a reflector as in the vehicle illumination device described in Patent Document 1, the light guide is exposed on the vehicle surface side and radiates light to the outside. A plurality of support legs may be provided on the body main body so as to be spaced apart in the longitudinal direction, and the plurality of support legs may be fixed to the member to be attached.

この場合、導光体から光源の光を照射しないときに（光源が非点灯状態のときに）、支持脚のある部位と支持脚の無い部位とで、導光体本体の表面から背面側の端部までの光の経路が大きく異なることになる。このため、支持脚のある部位では、導光体本体の表面と背面側の端部の間の光の経路長が他の部位に比較して長くなるとともに、支持脚での光の取り込み部の容積が大きくなり、導光体本体の表面の一部が他の部位に比較して部分的に暗くなったり、明るくなったりする事象が生じ易くなる。これにより、導光体本体の表面に明暗のバラ付きや色の変化が生じ、見栄えが低下することが懸念される。   In this case, when light from the light source is not emitted from the light guide (when the light source is in a non-lighted state), the surface of the light guide body from the surface of the light guide body to the back side of the part with the support leg The light path to the end is greatly different. For this reason, in the part with the support leg, the light path length between the surface of the light guide body and the end on the back side is longer than that of the other part, and the light capturing part of the support leg The volume becomes large, and an event that a part of the surface of the light guide body is partially darkened or brightened as compared with other parts is likely to occur. As a result, there is a concern that bright and dark variations and color changes occur on the surface of the light guide body, and the appearance is degraded.

そこで本発明は、導光体本体の表面の長手方向の明暗のバラ付きや色の変化を抑制して見栄えの向上を図ることができる車両用照光装置を提供しようとするものである。   Accordingly, the present invention is intended to provide a vehicular illumination device capable of improving the appearance by suppressing variations in brightness and color in the longitudinal direction of the surface of the light guide body and changing the color.

本出願の一の発明に係る車両用照光装置は、上記課題を解決するために、以下の構成を採用した。
即ち、本発明に係る車両用照光装置は、光を発する光源（例えば、実施形態の光源１１）と、前記光源で発した光を長手方向に誘導して外面から透過した光を外部に照射する導光体（例えば、実施形態の導光体１２）と、前記導光体が取り付けられる被取付部材（例えば、実施形態の第２のリフレクタ１３）と、を備え、前記導光体は、前記光源の光を外部に照射するとともに車両表面側に露出している導光体本体（例えば、実施形態の導光体本体１５）と、前記導光体本体から延出して前記被取付部材に支持される支持片（例えば、実施形態の支持片１６）と、を備え、前記支持片は、前記導光体の長手方向の一部の領域に設けられ、前記被取付部材に取り付けられる取付部（例えば、実施形態の取付部２３）と、前記導光体本体から背面側に延出する延長脚部（例えば、実施形態の延長脚部２６）と、前記延長脚部の延出端において略直角に折れ曲がり、前記取付部と前記延長脚部を連結する折曲部（例えば、実施形態の折曲部２７）と、を有し、前記延長脚部は、前記導光体の長手方向の全域に亘って形成され、前記被取付部材は、前記導光体本体の前記延長脚部寄りの端部の背面側に配置された遮蔽壁（例えば、実施形態の遮蔽壁１９）を有し、前記支持片の前記折曲部は、前記導光体本体の前記延長脚部寄りの車両表面側露出領域の端部（例えば、実施形態の端部１５ａ）と、前記遮蔽壁の前記導光体本体から離間する側の端部（例えば、実施形態の端部１９ａ）とを結んだ直線（例えば、実施形態の直線Ｌ）よりも前記遮蔽壁に近接する側に配置されていることを特徴とする。 The vehicle illumination device according to one aspect of the present application employs the following configuration in order to solve the above problems.
That is, the vehicle illumination device according to the present invention irradiates the light source that emits light (for example, the light source 11 of the embodiment) and the light transmitted from the outer surface by guiding the light emitted from the light source in the longitudinal direction. A light guide (for example, the light guide 12 of the embodiment) and a member to be attached (for example, the second reflector 13 of the embodiment) to which the light guide is attached; A light guide body (for example, the light guide body 15 of the embodiment) that is exposed to the outside of the vehicle and illuminates the light of the light source to the outside, and extends from the light guide body and is supported by the attached member A support piece (for example, the support piece 16 of the embodiment), and the support piece is provided in a partial region in the longitudinal direction of the light guide and is attached to the attached member ( For example, the mounting portion 23) of the embodiment and the back surface from the light guide body An extension leg (e.g., the extension leg 26 of the embodiment) that extends in the direction of bending, and a bend (e.g., the extension leg) that is bent at a substantially right angle at the extension end of the extension leg. The extension leg portion is formed over the entire area of the light guide body in the longitudinal direction, and the attached member is the light guide body main body. It has the shielding wall (for example, shielding wall 19 of embodiment) arrange | positioned at the back side of the edge part near an extension leg part, The said bending part of the said support piece is the said extension leg part of the said light guide body. An end portion (for example, the end portion 15a of the embodiment) of the vehicle surface side exposed region closer to the vehicle and an end portion (for example, the end portion 19a of the embodiment) of the shielding wall on the side separated from the light guide body. connecting it straight (e.g., straight line L embodiments) characterized in that it is arranged on the side close to the shielding wall than To.

上記の構成により、導光体本体から入射して支持片の延長脚部を通って延長脚部の端面で反射した光は、延長脚部を戻って導光体本体の表面から外部に出射される。延長脚部は導光体の長手方向の全域に亘って同様に形成されているため、導光体本体の表面から入射して延長脚部の端面で反射した光は導光体本体の長手方向のいずれの部位においても同様の明度で光ることになる。導光体の長手方向の一部の領域に設けられている支持片の取付部は、延長脚部の端部に折曲部を介して接続されているため、延長脚部を通過する光は、取付部方向には進みにくくなる。このため、取付部は、延長脚部を進む光の経路に影響を与えにくくなる。したがって、導光体本体の取付部のある部分が部分的に暗くなったり、他の部分と異なる色を発する事象が生じにくくなる。
また、被取付部材の内部において、支持片の取付部に外部から光が入射したときには、取付部と延長脚部が略直角な折曲部を介して連結されているため、その入射した光が延長脚部に沿う方向に進みにくくなる。したがって、導光体本体の取付部のある部分が部分的に明るくなったり、他の部分と異なる色を発する事象が生じにくくなる。
この場合、導光体本体を表面側から覗いたときに遮蔽壁に隠れて直接見えない位置に延長片の折曲部が配置されているため、折曲部が外部から見えることによる見栄えの低下を抑制することができる。 With the above configuration, light that is incident from the light guide body, passes through the extension leg portion of the support piece, and is reflected at the end surface of the extension leg portion, returns to the extension leg portion, and is emitted to the outside from the surface of the light guide body. The Since the extension leg is formed in the same manner throughout the entire length of the light guide, the light incident from the surface of the light guide body and reflected by the end surface of the extension leg is in the longitudinal direction of the light guide body. In any of the regions, the light is emitted with the same brightness. Since the attachment portion of the support piece provided in a partial region in the longitudinal direction of the light guide is connected to the end portion of the extension leg portion via the bent portion, the light passing through the extension leg portion , It becomes difficult to proceed in the direction of the mounting portion. For this reason, the attachment portion is less likely to affect the path of light traveling through the extension leg. Therefore, it is difficult to cause an event in which a portion of the light guide body attachment portion is partially darkened or emits a color different from other portions.
In addition, when light is incident on the mounting portion of the support piece from the outside in the mounted member, the mounting portion and the extension leg portion are connected via a substantially right-angled bent portion. It becomes difficult to advance in the direction along the extension leg. Accordingly, it is difficult to cause an event in which a portion of the light guide body attachment portion is partially bright or emits a color different from other portions.
In this case, when the light guide body is viewed from the surface side, the bent portion of the extension piece is arranged at a position hidden behind the shielding wall so that it cannot be directly seen. Can be suppressed.

本出願の他の発明に係る車両用照光装置は、上記課題を解決するために、以下の構成を採用した。
即ち、本発明に係る車両用照光装置は、光を発する光源（例えば、実施形態の光源１１）と、前記光源で発した光を長手方向に誘導して外面から透過した光を外部に照射する導光体（例えば、実施形態の導光体１２）と、前記導光体が取り付けられる被取付部材（例えば、実施形態の第２のリフレクタ１３）と、を備え、前記導光体は、前記光源の光を外部に照射するとともに車両表面側に露出している導光体本体（例えば、実施形態の導光体本体１５）と、前記導光体本体から延出して前記被取付部材に支持される支持片（例えば、実施形態の支持片１６）と、を備え、前記支持片は、前記導光体の長手方向の一部の領域に設けられ、前記被取付部材に取り付けられる取付部（例えば、実施形態の取付部２３）と、前記導光体本体から背面側に延出する延長脚部（例えば、実施形態の延長脚部２６）と、前記延長脚部の延出端において略直角に折れ曲がり、前記取付部と前記延長脚部を連結する折曲部（例えば、実施形態の折曲部２７）と、を有し、前記延長脚部は、前記導光体の長手方向の全域に亘って形成され、前記被取付部材は、前記導光体本体から背面側に照射された光を表面側に反射させるリフレクタであり、背面側に指向する前記延長脚部の端面（例えば、実施形態の端面２６ａ）と、当該端面と対向する前記被取付部材の対向面（例えば、実施形態の対向面１８−２ａ）との間に、前記対向面での光の反射を抑制する反射防止部（例えば、実施形態の空間部２８）が設けられていることを特徴とする。 The vehicle illumination device according to another invention of the present application employs the following configuration in order to solve the above problems.
That is, the vehicle illumination device according to the present invention irradiates the light source that emits light (for example, the light source 11 of the embodiment) and the light transmitted from the outer surface by guiding the light emitted from the light source in the longitudinal direction. A light guide (for example, the light guide 12 of the embodiment) and a member to be attached (for example, the second reflector 13 of the embodiment) to which the light guide is attached; A light guide body (for example, the light guide body 15 of the embodiment) that is exposed to the outside of the vehicle and illuminates the light of the light source to the outside, and extends from the light guide body and is supported by the attached member A support piece (for example, the support piece 16 of the embodiment), and the support piece is provided in a partial region in the longitudinal direction of the light guide and is attached to the attached member ( For example, the mounting portion 23) of the embodiment and the back surface from the light guide body An extension leg (e.g., the extension leg 26 of the embodiment) that extends in the direction of bending, and a bend (e.g., the extension leg) that is bent at a substantially right angle at the extension end of the extension leg. The extension leg portion is formed over the entire area of the light guide body in the longitudinal direction, and the attached member is disposed on the back side from the light guide body. Is a reflector that reflects the light irradiated to the front surface side, the end surface of the extension leg portion (for example, the end surface 26a of the embodiment) directed to the back surface side, and the facing surface of the attached member that faces the end surface ( for example, between the facing surfaces 18-2a) of the embodiment is characterized in that the inhibiting antireflective portion reflection of light at the facing surface (e.g., the embodiment of the space 28) is provided .

この場合、導光体本体から延長脚部に沿って背面側に進んだ光が、光輝性の被取付部材の対向面で反射するのを反射防止部によって抑制される。したがって、この構成を採用することにより、被取付部材の対向面での反射によって導光体本体の明度が変化するのを抑制することができる。   In this case, the light that has traveled from the light guide body along the extended leg portion to the back surface side is prevented from being reflected by the facing surface of the glossy attached member by the antireflection portion. Therefore, by adopting this configuration, it is possible to suppress the lightness of the light guide body from changing due to reflection on the facing surface of the mounted member.

本発明によれば、導光体の支持片が、被取付部材に取り付けられる取付部と、導光体本体から背面側に延出する延長脚部と、延長脚部と取付部とを連結する折曲部と、を有し、延長脚部が、導光体の長手方向の全域に亘って形成されているため、延長脚部を進む光の経路が導光体の長手方向の全域でほぼ等しくなるうえ、取付部による導光体本体の表面の透過光への影響を抑制することができる。したがって、本発明によれば、導光体本体の表面の長手方向の明暗のバラ付きや色の変化を抑制して見栄えの向上を図ることができる。   According to the present invention, the support piece of the light guide connects the attachment portion attached to the member to be attached, the extension leg portion extending from the light guide body to the back side, and the extension leg portion and the attachment portion. And the extension leg is formed over the entire region in the longitudinal direction of the light guide, so that the light path that travels through the extension leg is almost the entire region in the longitudinal direction of the light guide. In addition, the influence on the transmitted light of the surface of the light guide body by the mounting portion can be suppressed. Therefore, according to the present invention, it is possible to improve the appearance by suppressing variations in brightness and color in the longitudinal direction of the surface of the light guide body and suppressing color changes.

本発明の一実施形態のヘッドライトユニットの斜視図である。It is a perspective view of the headlight unit of one embodiment of the present invention. 本発明の一実施形態の導光体とリフレクタの正面図である。It is a front view of the light guide and reflector of one embodiment of the present invention. 本発明の一実施形態の導光体の斜視図である。It is a perspective view of the light guide of one embodiment of the present invention. 本発明の一実施形態の図２のＩＶ−ＩＶ線に沿う断面図である。It is sectional drawing which follows the IV-IV line of FIG. 2 of one Embodiment of this invention. 本発明の一実施形態の図２のＶ−Ｖ線に沿う断面図である。It is sectional drawing which follows the VV line of FIG. 2 of one Embodiment of this invention.

以下、本発明の一実施形態を図面に基づいて説明する。なお、以下の説明における前後左右等の向きは、特に記載が無ければ以下に説明する車両における向きと同一とする。また以下の説明に用いる図中適所には、車両前方を示す矢印ＦＲ、車両左方を示す矢印ＬＨ、車両上方を示す矢印ＵＰが示されている。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Note that the directions such as front, rear, left and right in the following description are the same as those in the vehicle described below unless otherwise specified. Further, in the drawings used for the following explanation, an arrow FR indicating the front of the vehicle, an arrow LH indicating the left side of the vehicle, and an arrow UP indicating the upper side of the vehicle are shown.

図１は、自動車の前部のヘッドライトユニット１を示す図である。
ヘッドライトユニット１は、車幅方向の中心に対して車両の前部に左右対称に配置されている。本実施形態では車両左側のヘッドライトユニット１を図示して説明する。
ヘッドライトユニット１は、ユニットハウジング５の前部に、ハイビーム３やロービーム４等とともにポジションランプ１０が配置されている。本実施形態においては、ポジションランプ１０が車両用照光装置を構成している。 FIG. 1 is a diagram showing a headlight unit 1 at the front of an automobile.
The headlight unit 1 is disposed symmetrically at the front of the vehicle with respect to the center in the vehicle width direction. In the present embodiment, the headlight unit 1 on the left side of the vehicle is illustrated and described.
In the headlight unit 1, a position lamp 10 is disposed at the front portion of the unit housing 5 together with the high beam 3, the low beam 4, and the like. In the present embodiment, the position lamp 10 constitutes a vehicle illumination device.

ポジションランプ１０は、通電によって光を発するＬＥＤ等の光源１１と、光源１１で発した光を長手方向の一端から他端に向かって誘導するとともに、周囲の面から光を透過させる導光体１２と、を備えている。導光体１２は、帯状の透明樹脂によって構成されている。導光体１２は、ユニットハウジング５の車幅方向外側の側辺と下辺に沿うように正面視が略Ｌ字状に形成されている。光源１１は、ユニットハウジング５内の車幅方向外側の側辺の上部付近に、導光体１２の一端部に対向するように配置されている。   The position lamp 10 includes a light source 11 such as an LED that emits light when energized, and a light guide 12 that guides light emitted from the light source 11 from one end to the other end in the longitudinal direction and transmits light from the surrounding surface. And. The light guide 12 is made of a strip-shaped transparent resin. The light guide 12 is formed in a substantially L shape in a front view so as to extend along the lateral side and the lower side of the unit housing 5 in the vehicle width direction. The light source 11 is disposed in the vicinity of the upper part of the side in the vehicle width direction inside the unit housing 5 so as to face one end of the light guide 12.

ユニットハウジング５の前部には、ハイビーム３やロービーム４から発された光を反射させて車両前方に照射する第１のリフレクタ６と、ポジションランプ１０の導光体１２から外部に透過した光を反射させて車両前方に照射する第２のリフレクタ１３が取り付けられている。本実施形態においては、第２のリフレクタ１３が導光体１２に対する被取付部材を兼ねるリフレクタを構成している。   The front part of the unit housing 5 reflects the light emitted from the high beam 3 and the low beam 4 and irradiates the front of the vehicle with the first reflector 6 and the light transmitted from the light guide 12 of the position lamp 10 to the outside. A second reflector 13 that reflects and irradiates the front of the vehicle is attached. In the present embodiment, the second reflector 13 constitutes a reflector that also serves as a member to be attached to the light guide 12.

図２は、第２のリフレクタ１３と、第２のリフレクタ１３に取り付けられた導光体１２を車両の前方側から見た図であり、図３は、導光体１２を後部左上方側から見た図である。また、図４は、図２のＩＶ−ＩＶ−線に沿う断面図であり、図５は、図２のＶ−Ｖ−線に沿う断面図である。
第２のリフレクタ１３は、導光体１２の背面側を覆うように、正面視が導光体１２よりも一回り大きい略Ｌ字状に形成されている。
なお、本実施形態においては、ポジションランプ１０（車両用照光装置）の表面側とは車両の前方側を意味し、ポジションランプ１０（車両用照光装置）の背面側とは、車両の後方側を意味するものとする。ただし、車両の側部や後部に配置される車両用照光装置においては、表面側とは、車両の側方や後方を意味し、背面側とは、その表面側と相反する方向を意味する。 2 is a view of the second reflector 13 and the light guide 12 attached to the second reflector 13 as seen from the front side of the vehicle. FIG. 3 shows the light guide 12 from the upper left rear side. FIG. 4 is a cross-sectional view taken along the line IV-IV- in FIG. 2, and FIG. 5 is a cross-sectional view taken along the line V-V- in FIG.
The second reflector 13 is formed in a substantially L shape so that the front view is slightly larger than the light guide 12 so as to cover the back side of the light guide 12.
In the present embodiment, the front side of the position lamp 10 (vehicle lighting device) means the front side of the vehicle, and the back side of the position lamp 10 (vehicle lighting device) means the rear side of the vehicle. Shall mean. However, in the vehicle lighting device arranged on the side or rear of the vehicle, the front side means the side or rear of the vehicle, and the back side means the direction opposite to the front side.

ポジションランプ１０の導光体１２は、光源１１の光を長手方向の途中の外面から外部に照射する導光体本体１５と、導光体本体１５の長手方向と直交する方向の一端部（図４，図５中の下端部）から背面側に延出して、被取付部材である第２のリフレクタ１３に支持される支持片１６と、を備えている。   The light guide 12 of the position lamp 10 includes a light guide body 15 that irradiates the light of the light source 11 from the outer surface in the longitudinal direction to the outside, and one end portion in a direction orthogonal to the longitudinal direction of the light guide body 15 (see FIG. 4, a lower end portion in FIG. 5, and a support piece 16 that is supported by a second reflector 13 that is a member to be attached.

一方、第２のリフレクタ１３は、導光体本体１５の背部に配置されて導光体本体１５の背面側を覆うリフレクタ本体１７と、リフレクタ本体１７の長手方向と直交する方向の一端部（図４，図５中の下端部）から背面側に屈曲して延出する延長部１８と、を備えている。リフレクタ本体１７の一端部には、延長部１８に連続するように車両前方側に突出する遮蔽壁１９が突設されている。   On the other hand, the second reflector 13 is disposed on the back of the light guide body 15 and covers the back side of the light guide body 15 and one end portion in a direction orthogonal to the longitudinal direction of the reflector body 17 (see FIG. 4 and a lower end portion in FIG. 5, and an extension portion 18 that bends and extends toward the back side. At one end of the reflector body 17, a shielding wall 19 that protrudes toward the vehicle front side is provided so as to be continuous with the extension 18.

第２のリフレクタ１３の延長部１８は、リフレクタ本体１７の一端部から略直角に屈曲して車体後方側に向かって直線的に延出する後部延出領域１８−１を備えている。延長部１８の長手方向の一部には、後部延出領域１８−１の延出端から導光体本体１５と離間する方向（図４中の下方）に略直角に屈曲する導光体取付片１８−２が延設されている。導光体取付片１８−２は、第２のリフレクタ１３の長手方向で相互に離間した複数箇所に設けられている。
導光体取付片１８−２の前面には、図４に示すように、ポジションランプ１０の導光体１２を固定するためのボス部２０が突設されている。 The extension 18 of the second reflector 13 includes a rear extension region 18-1 that is bent at a substantially right angle from one end of the reflector body 17 and linearly extends toward the rear side of the vehicle body. A light guide attached to a part of the extension portion 18 in the longitudinal direction is bent at a substantially right angle in a direction away from the light guide body 15 from the extension end of the rear extension region 18-1 (downward in FIG. 4). The piece 18-2 is extended. The light guide attachment pieces 18-2 are provided at a plurality of locations separated from each other in the longitudinal direction of the second reflector 13.
As shown in FIG. 4, a boss portion 20 for fixing the light guide body 12 of the position lamp 10 protrudes from the front surface of the light guide body mounting piece 18-2.

また、ユニットハウジング５の前部には、導光体１２と第２のリフレクタ１３の一部を収容する収容空間２１が設けられているとともに、ユニットハウジング５の前面側から導光体１２の導光体本体１５の前面を露出される開口部２２が設けられている。開口部２２は、導光体本体１５からの上下方向の光の照射範囲を規制するとともに、車両の前面側からヘッドライトユニット１を覗き込んだときに、ヘッドライトユニット１内の導光体本体１５以外の部分が外部から見えるのを規制している。
なお、ユニットハウジング５の前面側には、図４，図５に示すように、ヘッドライトユニット１のランプ類と導光体１２や第１のリフレクタ６、第２のリフレクタ１３等の前方を覆うアウターレンズ３０が取り付けられている。図２においては、アウターレンズ３０の図示は省略されている。 In addition, an accommodation space 21 that accommodates part of the light guide 12 and the second reflector 13 is provided at the front of the unit housing 5, and the light guide 12 is guided from the front side of the unit housing 5. An opening 22 that exposes the front surface of the optical body 15 is provided. The opening 22 regulates the light irradiation range in the vertical direction from the light guide body 15, and the light guide body in the headlight unit 1 when looking into the headlight unit 1 from the front side of the vehicle. The part other than 15 is restricted from being visible from the outside.
As shown in FIGS. 4 and 5, the front side of the unit housing 5 covers the front of the lamps of the headlight unit 1 and the light guide 12, the first reflector 6, the second reflector 13, and the like. An outer lens 30 is attached. In FIG. 2, the outer lens 30 is not shown.

ところで、導光体１２の支持片１６は、導光体１２の長手方向の一部の領域に設けられ、第２のリフレクタ１３の導光体取付片１８−２に固定される断面略Ｌ字状の取付部２３を有している。取付部２３は、導光体取付片１８−２の前面に重ね合せられる平坦面２３ａを有している。取付部２３は、第２のリフレクタ１３の複数の導光体取付片１８−２に対応して複数設けられている。取付部２３の平坦面２３ａには、対応する導光体取付片１８−２に突設されたボス部２０が挿入される挿通孔２４が形成されている。取付部２３は、挿通孔２４に挿入されたボス部２０にクリップナット等の固定具２５を取り付けることによって第２のリフレクタ１３に固定されている。   Incidentally, the support piece 16 of the light guide 12 is provided in a partial region of the light guide 12 in the longitudinal direction, and is substantially L-shaped in cross section fixed to the light guide attachment piece 18-2 of the second reflector 13. It has the attachment part 23 of a shape. The attachment portion 23 has a flat surface 23a that is superimposed on the front surface of the light guide attachment piece 18-2. A plurality of attachment portions 23 are provided corresponding to the plurality of light guide attachment pieces 18-2 of the second reflector 13. An insertion hole 24 into which the boss 20 projecting from the corresponding light guide attachment piece 18-2 is inserted is formed in the flat surface 23a of the attachment portion 23. The attachment portion 23 is fixed to the second reflector 13 by attaching a fixture 25 such as a clip nut to the boss portion 20 inserted into the insertion hole 24.

さらに、導光体１２の支持片１６は、導光体１２の長手方向と直交する方向の一端部（図４，図５中の下端部）から背面側に延出する延長脚部２６と、延長脚部２６の延出端において導光体本体１５と離間する側に略直角に折れ曲がり、取付部２３と延長脚部２６を連結する折曲部２７と、を有している。   Furthermore, the support piece 16 of the light guide 12 includes an extension leg 26 extending from one end (the lower end in FIGS. 4 and 5) in the direction orthogonal to the longitudinal direction of the light guide 12 to the back side, The extension leg 26 is bent at a substantially right angle to the side away from the light guide body 15 at the extended end, and has a bent part 27 that connects the attachment part 23 and the extension leg 26.

取付部２３が導光体１２の長手方向の一部の領域に設けられているのに対し、延長脚部２６は、導光体１２の長手方向の全域に亘って形成されている。導光体１２は、導光体本体１５から延長脚部２６の端面２６ａまでの形状と長さが、導光体１２の長手方向の全域に亘って略同一形状・略同一長さに形成されている。   The attachment portion 23 is provided in a partial region of the light guide 12 in the longitudinal direction, whereas the extension leg portion 26 is formed over the entire length of the light guide 12. The light guide body 12 is formed so that the shape and length from the light guide body 15 to the end surface 26a of the extension leg portion 26 are substantially the same shape and length over the entire length direction of the light guide body 12. ing.

また、延長脚部２６の延出端の端面２６ａは、折曲部２７の車体後方側（背面側）に指向する端面２７ａと面一に形成されている。延長脚部２６の端面２６ａと、その端面２６ａと対向する第２のリフレクタ１３の導光体取付片１８−２の対向面１８−２ａの間には、反射防止部である充分な前後長の空間部２８が設けられている。   Further, the end surface 26 a of the extended end of the extension leg portion 26 is formed flush with the end surface 27 a that faces the vehicle body rear side (back side) of the bent portion 27. Between the end surface 26a of the extension leg portion 26 and the facing surface 18-2a of the light guide attachment piece 18-2 of the second reflector 13 facing the end surface 26a, a sufficient length of the antireflection portion is sufficient. A space 28 is provided.

導光体１２の支持片１６のうちの延長脚部２６は、導光体本体１５との連接部の近傍に導光体本体１５から離間する方向（図４，図５中の下方）に傾斜する傾斜部２６ｂを有している。この傾斜部２６ｂの背面側（導光体本体１５の延長脚部２６寄りの端部近傍の背面側）には第２のリフレクタ１３の遮蔽壁１９が配置されている。   The extension leg portion 26 of the support piece 16 of the light guide 12 is inclined in the direction away from the light guide body 15 (downward in FIGS. 4 and 5) in the vicinity of the connecting portion with the light guide body 15. It has an inclined portion 26b. The shielding wall 19 of the second reflector 13 is disposed on the back side of the inclined part 26b (on the back side near the end of the light guide body 15 near the extended leg part 26).

導光体１２の支持片１６の折曲部２７は、図４に示すように、導光体本体１５の延長脚部２６寄りの車両表面側露出領域の端部１５ａと、第２のリフレクタ１３の遮蔽壁１９のうちの導光体本体１５から離間する側の端部１９ａと、を結んだ直線Ｌよりも、遮蔽壁１９に近接する側に配置されている。   As shown in FIG. 4, the bent portion 27 of the support piece 16 of the light guide 12 includes the end 15 a of the vehicle surface side exposed region near the extension leg portion 26 of the light guide body 15, and the second reflector 13. It arrange | positions in the side close | similar to the shielding wall 19 rather than the straight line L which tied the edge part 19a of the side spaced apart from the light guide main body 15 of the shielding wall 19 of this.

以上の構成において、ポジションランプ１０の光源１１が点灯されると、光源１１から発された光は、導光体１２の一端部に入射され、導光体１２の延出方向に沿って導光体１２の他端方向に向かって進む。この間、導光体の長手方向の中途部の周囲の面から光が透過し、その光が直接前方側に照射、若しくは、第２のリフレクタ１３に反射して前方側に照射される。   In the above configuration, when the light source 11 of the position lamp 10 is turned on, the light emitted from the light source 11 enters the one end of the light guide 12 and is guided along the extending direction of the light guide 12. Proceed toward the other end of the body 12. During this time, light is transmitted from the surface around the middle portion in the longitudinal direction of the light guide, and the light is directly irradiated to the front side or reflected by the second reflector 13 and irradiated to the front side.

また、ポジションランプ１０の光源１１が消灯された状態で、導光体本体１５に外光が入射されると、その光は、導光体１２の支持片１６の延長脚部２６を通り、延長脚部２６の端面２６ａで反射して延長脚部２６を前方側に戻り、導光体本体１５の表面から外部に出射される。延長脚部２６は、導光体１２の長手方向の全域に亘って略同長さ・略同形状に形成されているため、導光体本体１５の表面から入射して延長脚部２６の端面２６ａで反射した光は、導光体本体１５の長手方向のいずれの部位においてもほぼ均一な明度で光ることになる。   Further, when external light is incident on the light guide body 15 with the light source 11 of the position lamp 10 turned off, the light passes through the extension legs 26 of the support piece 16 of the light guide 12 and extends. Reflected by the end face 26 a of the leg portion 26, the extension leg portion 26 returns to the front side, and is emitted to the outside from the surface of the light guide body 15. The extension legs 26 are formed in substantially the same length and shape throughout the entire length of the light guide 12, so that the extension legs 26 are incident from the surface of the light guide body 15 and end surfaces of the extension legs 26. The light reflected by 26a shines with almost uniform brightness at any part in the longitudinal direction of the light guide body 15.

導光体１２を第２のリフレクタ１３に取り付けるための取付部２３は、導光体１２の支持片１６の長手方向の一部の領域に設けられているが、各取付部２３は延長脚部２６の端部に略直角な折曲部２７を介して接続されているため、延長脚部２６を通過する光は、取付部２３方向に進みにくい。このため、取付部２３は、延長脚部２６を進む光の経路に影響をほぼ与えることがない。したがって、この実施形態に係るポジションランプ１０（車両用照光装置）においては、導光体本体１５の取付部２３のある部分が部分的に暗くなったり、他の部分と異なる色を発する事象が生じにくい。   The attachment portion 23 for attaching the light guide body 12 to the second reflector 13 is provided in a partial region of the support piece 16 of the light guide body 12 in the longitudinal direction. Each attachment portion 23 is an extension leg portion. The light passing through the extension leg portion 26 is unlikely to travel in the direction of the attachment portion 23 because it is connected to the end portion 26 via the bent portion 27 that is substantially perpendicular. For this reason, the attachment portion 23 hardly affects the path of light traveling through the extension leg portion 26. Therefore, in the position lamp 10 (vehicle lighting device) according to this embodiment, an event occurs in which a portion of the light guide body 15 with the mounting portion 23 is partially darkened or emits a color different from other portions. Hateful.

また、第２のリフレクタ１３やユニットハウジング５の内部において、導光体１２の支持片１６の取付部２３に外部から光が入射した場合には、取付部２３と延長脚部２６が略直角な折曲部２７を介して連結されているため、取付部２３に入射した光が延長脚部２６に沿う方向に進みにくい。したがって、この実施形態に係るポジションランプ１０（車両用照光装置）においては、導光体本体１５の取付部２３のある部分が部分的に明るくなったり、他の部分と異なる色を発する事象が生じにくい。   In addition, in the second reflector 13 or the unit housing 5, when light is incident on the attachment portion 23 of the support piece 16 of the light guide 12 from the outside, the attachment portion 23 and the extension leg portion 26 are substantially perpendicular to each other. Since they are connected via the bent portion 27, it is difficult for the light incident on the attachment portion 23 to travel in the direction along the extension leg portion 26. Therefore, in the position lamp 10 (vehicle lighting device) according to this embodiment, an event occurs in which a portion of the light guide body 15 with the attachment portion 23 is partially brightened or emits a different color from the other portions. Hateful.

よって、この実施形態に係るポジションランプ１０（車両用照光装置）を採用した場合には、光源１１の消灯時における導光体本体１５の表面の長手方向の明暗のバラ付きや色の変化を抑制して見栄えの向上を図ることができる。   Therefore, when the position lamp 10 (lighting device for a vehicle) according to this embodiment is employed, the variation in light and darkness in the longitudinal direction of the surface of the light guide body 15 and the color change are suppressed when the light source 11 is turned off. And improve the appearance.

また、この実施形態に係るポジションランプ１０（車両用照光装置）においては、導光体１２の支持片１６の折曲部２７が、導光体本体１５の延長脚部２６寄りの車両表面側露出領域の端部１５ａと、第２のリフレクタ１３の遮蔽壁１９のうちの導光体本体１５から離間する側の端部１９ａと、を結んだ直線Ｌよりも、遮蔽壁１９に近接する側に配置されている。このため、導光体本体１５を車両前方側から覗き込んだときに、折曲部２７が遮蔽壁１９に隠れて直接見えなくなる。したがって、この構成を採用した場合には、折曲部２７が外部から見えることによる見栄えの低下を抑制することができる。   In the position lamp 10 (vehicle lighting device) according to this embodiment, the bent portion 27 of the support piece 16 of the light guide 12 is exposed on the vehicle surface side near the extension leg portion 26 of the light guide body 15. The side closer to the shielding wall 19 than the straight line L connecting the end 15a of the region and the end 19a of the shielding wall 19 of the second reflector 13 on the side away from the light guide body 15 Has been placed. For this reason, when the light guide body 15 is looked into from the front side of the vehicle, the bent portion 27 is hidden by the shielding wall 19 and cannot be directly seen. Therefore, when this configuration is adopted, it is possible to suppress a decrease in appearance due to the bent portion 27 being visible from the outside.

さらに、この実施形態に係るポジションランプ１０（車両用照光装置）にあっては、導光体１２の延長脚部２６の端面２６ａと、その端面２６ａと対向する第２のリフレクタ１３の導光体取付片１８−２の対向面１８−２ａの間に、反射防止部である空間部２８が設けられている。このため、導光体本体１５から延長脚部２６に沿って背面側に進んだ光が、第２のリフレクタ１３の導光体取付片１８−２の対向面１８−２ａで反射して延長脚部２６に戻るのを抑制することができる。したがって、この構成を採用した場合には、第２のリフレクタ１３の対向面１８−２ａでの反射によって導光体本体１５の明度が部分的に変化するのを抑制することができる。
本実施形態においては、空間部２８によって反射防止部が構成されているが、反射防止部は、対向面１８−２ａでの光の反射を防止し得る非反射部材によって構成するようにしても良い。非反射部材は、ユニットハウジング５に突設した壁によって構成しても良く、また、ユニットハウジング５と別の部材、例えば、スポンジゴム等を付設するようにしても良い。 Furthermore, in the position lamp 10 (vehicle lighting device) according to this embodiment, the end surface 26a of the extension leg portion 26 of the light guide 12 and the light guide of the second reflector 13 facing the end surface 26a. Between the opposing surface 18-2a of the mounting piece 18-2, a space portion 28 that is an antireflection portion is provided. For this reason, the light traveling from the light guide body 15 to the back side along the extension leg portion 26 is reflected by the opposing surface 18-2a of the light guide body attachment piece 18-2 of the second reflector 13 to extend the extension leg. Returning to the unit 26 can be suppressed. Therefore, when this configuration is adopted, it is possible to suppress a partial change in the brightness of the light guide body 15 due to the reflection at the facing surface 18-2a of the second reflector 13.
In the present embodiment, the antireflection portion is configured by the space portion 28, but the antireflection portion may be configured by a non-reflective member that can prevent reflection of light on the facing surface 18-2a. . The non-reflective member may be constituted by a wall projecting from the unit housing 5 or may be provided with a member other than the unit housing 5, such as sponge rubber.

なお、本発明は上記の実施形態に限定されるものではなく、その要旨を逸脱しない範囲で種々の設計変更が可能である。例えば、上記の実施形態においては、本発明に係る車両用照光装置の一例としてヘッドライトユニット１のポジションランプ１０を挙げているが、本発明に係る車両用照光装置は、ポジションランプ１０に限らず、サイドターンランプやブレーキランプ等の他の部位や他の用途に用いられる照光装置であっても良い。   In addition, this invention is not limited to said embodiment, A various design change is possible in the range which does not deviate from the summary. For example, in the above embodiment, the position lamp 10 of the headlight unit 1 is cited as an example of the vehicle lighting device according to the present invention. However, the vehicle lighting device according to the present invention is not limited to the position lamp 10. Further, it may be an illumination device used for other parts such as a side turn lamp and a brake lamp and for other purposes.

１０…ポジションランプ（車両用照光装置）
１１…光源
１２…導光体
１３…第２のリフレクタ（リフレクタ，被取付部材）
１５…導光体本体
１５ａ…端部
１６…支持片
１８−２ａ…対向面
１９ａ…端部
２３…取付部
２６…延長脚部
２６ａ…端面
２７…折曲部
２８…空間部（反射防止部）
Ｌ…直線
10. Position lamp (lighting device for vehicle)
DESCRIPTION OF SYMBOLS 11 ... Light source 12 ... Light guide 13 ... 2nd reflector (reflector, to-be-attached member)
DESCRIPTION OF SYMBOLS 15 ... Light guide body 15a ... End part 16 ... Supporting piece 18-2a ... Opposite surface 19a ... End part 23 ... Mounting part 26 ... Extension leg part 26a ... End surface 27 ... Bending part 28 ... Space part (antireflection part)
L ... Straight line

Claims (2)

光を発する光源と、
前記光源で発した光を長手方向に誘導して外面から透過した光を外部に照射する導光体と、
前記導光体が取り付けられる被取付部材と、を備え、
前記導光体は、
前記光源の光を外部に照射するとともに車両表面側に露出している導光体本体と、
前記導光体本体から延出して前記被取付部材に支持される支持片と、を備え、
前記支持片は、
前記導光体の長手方向の一部の領域に設けられ、前記被取付部材に取り付けられる取付部と、
前記導光体本体から背面側に延出する延長脚部と、
前記延長脚部の延出端において略直角に折れ曲がり、前記取付部と前記延長脚部を連結する折曲部と、を有し、
前記延長脚部は、前記導光体の長手方向の全域に亘って形成され、
前記被取付部材は、前記導光体本体の前記延長脚部寄りの端部近傍の背面側に配置された遮蔽壁を有し、
前記支持片の前記折曲部は、前記導光体本体の前記延長脚部寄りの車両表面側露出領域の端部と、前記遮蔽壁の前記導光体本体と離間する側の端部とを結んだ直線よりも前記遮蔽壁に近接する側に配置されていることを特徴とする車両用照光装置。 A light source that emits light;
A light guide that guides light emitted from the light source in the longitudinal direction and irradiates the light transmitted from the outer surface to the outside;
An attached member to which the light guide is attached,
The light guide is
A light guide body that irradiates the light of the light source to the outside and is exposed to the vehicle surface side;
A support piece extending from the light guide body and supported by the attached member, and
The support piece is
An attachment portion provided in a partial region in the longitudinal direction of the light guide, and attached to the attached member;
An extension leg extending from the light guide body to the back side;
A bent portion that bends at a substantially right angle at the extended end of the extension leg, and connects the attachment portion and the extension leg,
The extension leg is formed over the entire length of the light guide ,
The attached member has a shielding wall disposed on the back side near the end of the light guide body near the extended leg,
The bent portion of the support piece includes an end portion of the vehicle surface side exposed region near the extension leg portion of the light guide body, and an end portion of the shielding wall on the side away from the light guide body. A vehicle illumination device, wherein the vehicle illumination device is disposed closer to the shielding wall than a connected straight line . 光を発する光源と、
前記光源で発した光を長手方向に誘導して外面から透過した光を外部に照射する導光体と、
前記導光体が取り付けられる被取付部材と、を備え、
前記導光体は、
前記光源の光を外部に照射するとともに車両表面側に露出している導光体本体と、
前記導光体本体から延出して前記被取付部材に支持される支持片と、を備え、
前記支持片は、
前記導光体の長手方向の一部の領域に設けられ、前記被取付部材に取り付けられる取付部と、
前記導光体本体から背面側に延出する延長脚部と、
前記延長脚部の延出端において略直角に折れ曲がり、前記取付部と前記延長脚部を連結する折曲部と、を有し、
前記延長脚部は、前記導光体の長手方向の全域に亘って形成され、
前記被取付部材は、前記導光体本体から背面側に照射された光を表面側に反射させるリフレクタであり、
背面側に指向する前記延長脚部の端面と、当該端面と対向する前記被取付部材の対向面との間に、前記対向面での光の反射を抑制する反射防止部が設けられていることを特徴とする車両用照光装置。 A light source that emits light;
A light guide that guides light emitted from the light source in the longitudinal direction and irradiates the light transmitted from the outer surface to the outside;
An attached member to which the light guide is attached,
The light guide is
A light guide body that irradiates the light of the light source to the outside and is exposed to the vehicle surface side;
A support piece extending from the light guide body and supported by the attached member, and
The support piece is
An attachment portion provided in a partial region in the longitudinal direction of the light guide, and attached to the attached member;
An extension leg extending from the light guide body to the back side;
A bent portion that bends at a substantially right angle at the extended end of the extension leg, and connects the attachment portion and the extension leg,
The extension leg is formed over the entire length of the light guide,
The attached member is a reflector that reflects the light emitted from the light guide body to the back side to the surface side;
An antireflection portion that suppresses reflection of light on the facing surface is provided between the end surface of the extension leg portion that faces the back surface and the facing surface of the attached member that faces the end surface. A vehicle illumination device characterized by the above.
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