JP2006114309A - Side turn signal lamp - Google Patents

Side turn signal lamp Download PDF

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Publication number
JP2006114309A
JP2006114309A JP2004299849A JP2004299849A JP2006114309A JP 2006114309 A JP2006114309 A JP 2006114309A JP 2004299849 A JP2004299849 A JP 2004299849A JP 2004299849 A JP2004299849 A JP 2004299849A JP 2006114309 A JP2006114309 A JP 2006114309A
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Prior art keywords
light guide
guide lens
light
signal lamp
turn signal
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JP4609881B2 (en
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Shigehiko Kazaoka
成彦 風岡
Toranosuke Sakuma
寅之助 佐久間
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Koito Manufacturing Co Ltd
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Koito Manufacturing Co Ltd
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    • 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
    • B60Q1/2661—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 mounted on parts having other functions
    • B60Q1/2665—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 mounted on parts having other functions on rear-view mirrors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
    • B60R1/1207—Mirror assemblies combined with other articles, e.g. clocks with lamps; with turn indicators

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a side turn signal lamp, whereby the amount of light distributed to the rear of a vehicle and the amount of emitted light in the front of a light guide lens are increased, and a sense of depth and appearance, when the lamp is not lighted are obtained. <P>SOLUTION: In this side turn signal lamp equipped with a housing 10 for supporting a side mirror body 14, an opening part 12 horizontally stretching on its outside wall 11, the light guide lens 21 disposed so that its light entering and exitting end parts 21a, 21b are positioned in the inside and at the outside of the housing and its front side 22 is exposed from the opening part 12, and a LED 32 disposed at the light entering end part, a back wall 26 to which reflection treatment 17 has been applied is disposed with a prescribed gap s2 set apart in the back of the light guide lens. In comparison with the case in which reflection treatment is applied to the rear face of the light guide lens, light guide efficiency is higher. Light, leaking from the rear face of the light guide lens, is reflected by a reflecting surface and enters into the light guide lens, and the amount of light distributed to the back of the vehicle from the light-emitting end part and an amount of light emitted faintly in the entire front of the light guide lens are increased. Because of the space between the light guide lens and the reflecting face, sensation of depth in the lamp 20 is obtained, when it is not lighted. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、自動車のサイドミラーに内蔵一体化されたサイドターンシグナルランプに関する。   The present invention relates to a side turn signal lamp built in and integrated with a side mirror of an automobile.

この種の第１の従来技術として下記特許文献１があり、ここでは、図６に示すように、サイドミラー本体２を支持するハウジング１の外側壁に左右に延びる開口部１ａが設けられ、背面壁１ｂに支持された導光部材である光ファイバー４が開口部１ａに沿って配設され、光源であるＬＥＤ３の発光が光ファイバー４内に導かれて光出射端部４ａから車両後方に配光される。さらに開口部１ａの外側には、光ファイバー４を覆う発光膜５が設けられており、ＬＥＤ３の点灯に合わせて発光膜５全体が発光して、車両側方からも視認できる。   As a first prior art of this type, there is Japanese Patent Application Laid-Open No. H11-260260. Here, as shown in FIG. 6, an opening 1 a extending left and right is provided on the outer wall of the housing 1 that supports the side mirror body 2, and the rear surface. An optical fiber 4 serving as a light guide member supported by the wall 1b is disposed along the opening 1a, and light emitted from the LED 3 serving as a light source is guided into the optical fiber 4 and distributed to the rear of the vehicle from the light emitting end 4a. The Further, a light-emitting film 5 that covers the optical fiber 4 is provided outside the opening 1a. The entire light-emitting film 5 emits light when the LED 3 is turned on, and can be viewed from the side of the vehicle.

この種の第２の従来技術として下記特許文献２があり、ここでは、図７に示すように、サイドミラー本体（図示せず）を支持するハウジング１の外側壁に左右に延びる開口部１ａが設けられ、背面壁１ｂに支持された導光レンズ６が開口部１ａに沿って配設され、ＬＥＤ３の発光が導光レンズ６内に導かれて光出射端部６ａから車両後方に配光されるとともに、導光レンズ６全体がわずかに発光して、車両側方からも視認できる。さらに導光レンズ６の長手方向途中には、背面壁１ｂに支持された第２のＬＥＤ７が設けられ、導光レンズ６を介しての車両後方への配光量不足および導光レンズ６前面における発光量不足を補うことができる。
特開２０００-１０３２８７号 特開２００３-６３３０４号 As a second prior art of this type, there is Patent Document 2 below, and here, as shown in FIG. 7, an opening 1a extending left and right is formed on the outer wall of a housing 1 that supports a side mirror body (not shown). A light guide lens 6 that is provided and supported by the back wall 1b is disposed along the opening 1a. Light emitted from the LED 3 is guided into the light guide lens 6 and distributed from the light emitting end 6a to the rear of the vehicle. In addition, the entire light guide lens 6 emits light slightly and can be seen from the side of the vehicle. Further, in the middle of the light guide lens 6 in the longitudinal direction, a second LED 7 supported on the back wall 1b is provided, and the light distribution to the rear of the vehicle via the light guide lens 6 is insufficient and the light emission at the front surface of the light guide lens 6 is achieved. Can compensate for the shortage.
JP 2000-103287 A JP 2003-63304 A

しかし、前記した第１の従来技術では、導光部材として光ファイバー４を使用しているが、光ファイバー４は高価である上に、側方からの衝撃力に弱いので、光ハイバー４を覆う合成樹脂製の保護カバー（図示せず）を必要とし、さらに、漏光がほとんどない光ファイバー４の開口部１ａ側には、車両側方に向け発光する発光膜５を必要とし、発光膜５および合成樹脂製の保護カバーを装備する分、構造が複雑となる。   However, in the first prior art described above, the optical fiber 4 is used as the light guide member. However, since the optical fiber 4 is expensive and weak against the impact force from the side, the synthetic resin that covers the optical hiber 4 is used. A protective cover (not shown) made of light is required, and the light emitting film 5 that emits light toward the side of the vehicle is required on the side of the opening 1a of the optical fiber 4 that hardly leaks light. Since the protective cover is equipped, the structure becomes complicated.

また、第２の従来技術では、導光部材としての導光レンズ６は、側方からの耐衝撃性に優れるものの、光ファイバーに比べると漏光量が多く、漏光の一部は背面壁３で吸収されてしまって、車両後方への配光量や導光レンズ６前面における発光量がそれだけ少ないため、第２のＬＥＤ７を設けて車両後方への配光量不足および導光レンズ６前面における配光量不足を補う必要があり、構造が複雑となる。さらに、導光レンズ６の第２のＬＥＤ７配設位置が特に明るく見えて、側方からの被視認性も悪いという問題もある。   In the second prior art, the light guide lens 6 as the light guide member has excellent impact resistance from the side, but has a larger amount of light leakage than an optical fiber, and a part of the light leakage is absorbed by the back wall 3. Thus, the amount of light distribution to the rear of the vehicle and the amount of light emitted from the front surface of the light guide lens 6 are so small. It is necessary to compensate, and the structure becomes complicated. Furthermore, there is a problem that the position where the second LED 7 is disposed on the light guide lens 6 looks particularly bright and visibility from the side is also poor.

また、第1，第２の従来技術のいずれにおいても、非点灯時のサイドターンシグナルランプに奥行き感がなく、見栄えが悪いという問題もある。   In addition, in both the first and second prior arts, there is a problem that the side turn signal lamp at the time of non-lighting does not have a sense of depth and looks bad.

そこで、発明者は、導光レンズの裏面に反射面を形成（アルミ蒸着処理または反射塗装処理）し、導光レンズ裏面からの漏光を防止することで、車両後方への配光量および導光レンズ前面における発光量を上げようと考えた。しかし、導光レンズの裏面にアルミ蒸着反射面を形成した場合には、導光レンズの裏面が荒れた粗面となってレンズの内面反射光が散乱し、また塗装反射面を形成した場合には、反射塗装膜と導光レンズの屈折率が近いため導光レンズ裏面からの透過光が増え、いずれの場合も導光レンズの導光効率が下がって、サイドターンシグナルランプ本来の機能である車両後方への配光量が低下してしまった。   Therefore, the inventor forms a reflection surface on the back surface of the light guide lens (aluminum vapor deposition treatment or reflection coating treatment) to prevent light leakage from the back surface of the light guide lens, thereby providing a light distribution amount to the rear of the vehicle and the light guide lens. I wanted to increase the amount of light emitted from the front. However, when the aluminum vapor deposition reflective surface is formed on the back surface of the light guide lens, the back surface of the light guide lens becomes rough and rough, and the reflected light on the inner surface of the lens is scattered. Since the refractive index of the reflective coating film and the light guide lens is close, the transmitted light from the back surface of the light guide lens increases, and in either case, the light guide efficiency of the light guide lens is lowered, which is the original function of the side turn signal lamp The light distribution to the rear of the vehicle has decreased.

そこで、導光レンズの背後に配設する背面壁に反射面を形成（アルミ蒸着処理または塗装処理）し、導光レンズから背面壁（の反射面）を離間させて配置したところ、導光レンズ裏面に反射面を形成した場合に比べて、導光レンズの導光効率が上がり、車両後方への配光量が増えるとともに、導光レンズ前面における発光量も増え、さらに、非点灯時のサイドターンシグナルランプに奥行き感も出ることが確認されたので、この度、本発明を提案するに至ったものである。   Therefore, a reflective surface is formed on the back wall disposed behind the light guide lens (aluminum vapor deposition or coating treatment), and the back wall (the reflective surface thereof) is separated from the light guide lens. Compared with the case where a reflective surface is formed on the back surface, the light guide lens has a higher light guide efficiency, the light distribution to the rear of the vehicle increases, the amount of light emitted from the front surface of the light guide lens also increases, and the side turn when not lit Since it was confirmed that the signal lamp has a sense of depth, this time, the present invention has been proposed.

本発明は、前記従来技術の問題点および発明者の前記した知見に基づいてなされたもので、その目的は、車両後方への配光量および導光レンズ前面における発光量が増えるとともに、非点灯時に奥行き感があって見栄えのよいサイドターンシグナルランプを提供することにある。   The present invention has been made on the basis of the problems of the prior art and the above-mentioned knowledge of the inventor. The purpose of the present invention is to increase the amount of light distribution to the rear of the vehicle and the amount of light emitted from the front surface of the light guide lens. It is to provide a side turn signal lamp that has a good sense of depth and looks good.

前記目的を達成するために、請求項１に係るサイドターンシグナルランプにおいては、サイドミラー本体を支持するサイドミラーハウジングと、前記ハウジングの湾曲する外側壁に設けられた左右に延びる開口部と、前記ハウジングの内外にその光入出射端部が配置されて前記開口部からその湾曲する前面側が露呈するように組み付けられた導光レンズと、前記導光レンズの光入射端部近傍に配置された光源であるＬＥＤと、を備えたサイドターンシグナルランプにおいて、
前記導光レンズの背後に、前面に反射処理を施した背面壁を所定の隙間を隔てて配設するように構成した。
（作用）光入射端部から導光レンズに入射したＬＥＤの発光のほとんどの光は、内面反射を繰り返して導光レンズの先端側に導かれ、光出射端部から車体後方に出射配光され、光入射端部から導光レンズに入射したＬＥＤの発光の一部は、導光レンズの前面側から車体側方に放射されて、導光レンズの前面側がほんのりと発光する。 To achieve the above object, in the side turn signal lamp according to claim 1, a side mirror housing that supports a side mirror main body, a left and right opening provided on a curved outer wall of the housing, A light guide lens that has its light incident / exit end disposed inside and outside the housing and is assembled so that the curved front side is exposed from the opening, and a light source disposed in the vicinity of the light incident end of the light guide lens In the side turn signal lamp provided with the LED,
Behind the light guide lens, a rear wall whose front surface was subjected to reflection treatment was disposed with a predetermined gap therebetween.
(Function) Most of the light emitted from the LED that has entered the light guide lens from the light incident end is guided to the front end side of the light guide lens by repeating internal reflection, and emitted and distributed from the light exit end to the rear of the vehicle body. A part of the light emission of the LED that has entered the light guide lens from the light incident end is radiated from the front side of the light guide lens to the side of the vehicle body, and the front side of the light guide lens slightly emits light.

特に、導光レンズの裏面は屈折率が大きく異なる（屈折率の小さい）空気層に接しているため、導光レンズ裏面に反射処理（反射塗装）を施した場合に比べて、導光レンズの裏面からの漏光が少ない分、導光レンズの導光効率が上がる。また、導光レンズ裏面に反射処理（アルミ蒸着処理）を施した場合に比べて、導光レンズの内面反射光が散乱しない分、導光レンズの導光効率が上がる。   In particular, since the back surface of the light guide lens is in contact with an air layer having a significantly different refractive index (small refractive index), the back surface of the light guide lens is compared with the case where the back surface of the light guide lens is subjected to reflection treatment (reflection coating). The light guide efficiency of the light guide lens is increased by the amount of light leakage from the back surface. In addition, compared with the case where the back surface of the light guide lens is subjected to a reflection process (aluminum vapor deposition process), the light guide efficiency of the light guide lens is increased by the amount of light reflected from the inner surface of the light guide lens.

また、導光レンズの裏面からの漏光は、背面壁の反射面で反射されて導光レンズに入射し、この入射光の一部は導光レンズの光出射端部から出射して、車両後方への配光量を高めるように作用し、入射光の一部は導光レンズの前面から出射して、導光レンズ前面における発光量を高めるように作用する。   Further, the light leakage from the back surface of the light guide lens is reflected by the reflecting surface of the back wall and enters the light guide lens, and a part of this incident light exits from the light exit end of the light guide lens and is behind the vehicle. The amount of incident light is increased from the front surface of the light guide lens, and the amount of light emitted from the front surface of the light guide lens is increased.

また、導光レンズと背面壁の反射面との間に設けられた所定の隙間（空間）は、非点灯時のサイドターンシグナルランプに奥行き感を与えるように作用する。   In addition, a predetermined gap (space) provided between the light guide lens and the reflective surface of the back wall acts to give a sense of depth to the side turn signal lamp when not lit.

なお、導光レンズ裏面と背面壁の反射面の離間距離としては、大きく離間させるほどランプの奥行き感が増して好ましいが、サイドミラーハウジング内の 他部品と干渉しないようにランプの薄型化も考慮すると、２〜１０ｍｍ程度が望ましい。   Note that the distance between the rear surface of the light guide lens and the reflecting surface of the rear wall is preferably greater as the distance between the light guide lens and the rear surface increases. However, the thickness of the lamp should be reduced so that it does not interfere with other parts in the side mirror housing. Then, about 2-10 mm is desirable.

また、請求項２においては、請求項１に記載のサイドターンシグナルランプにおいて、前記背面壁の反射処理面に、左右に延びるシリンドリカルステップ複数本を上下方向等間隔に設けるように構成した。
（作用）非点灯時には、背面壁の反射面の左右に延びるシリンドリカルステップが導光レンズを通してクリスタル模様のように透けて見えて、ランプの奥行き感が強調される。 According to a second aspect of the present invention, in the side turn signal lamp according to the first aspect, a plurality of cylindrical steps extending in the left-right direction are provided at equal intervals in the vertical direction on the reflection processing surface of the back wall.
(Operation) When the lamp is not lit, the cylindrical steps extending to the left and right of the reflective surface of the back wall can be seen through like a crystal pattern through the light guide lens, and the depth of the lamp is emphasized.

請求項３においては、請求項１または２に記載のサイドターンシグナルランプにおいて、前記導光レンズの周縁部にシール脚を周設し、該シール脚を前記背面壁に溶着するように構成した。
（作用）導光レンズに周設されたシール脚と背面壁が溶着されることで、導光レンズと反射面間に密閉空間が形成されて、該密閉空間への水や塵の侵入が阻止されるとともに、サイドターンシグナルランプに作用する振動や衝撃力に対する剛性が高められている。
請求項４においては、請求項３に記載のサイドターンシグナルランプにおいて、前記導光レンズの基端部側に前記光入射端部を取り囲む光源収容室を形成する立壁状の枠を一体成形するとともに、該枠には、前記ＬＥＤを搭載したプリント基板を備えたＬＥＤユニットアッシーを凹凸ランス係合により取着一体化するように構成した。
（作用）導光レンズの基端部（の立壁状の枠）にＬＥＤユニットアッシーを取着すれば、導光レンズの光入射端部に対しＬＥＤが自動的に位置決めされる。
また、導光レンズの基端部にＬＥＤユニットアッシーを取着してサイドターンシグナルランプとして一体化したものを、サイドミラーハウジングに組み付けることで、サイドミラーに一体化することができる。即ち、サイドターンシグナルランプをサイドミラーに対し簡単に装脱着できる。 According to a third aspect of the present invention, in the side turn signal lamp according to the first or second aspect, a seal leg is provided around the periphery of the light guide lens, and the seal leg is welded to the back wall.
(Operation) The sealing leg and the back wall provided around the light guide lens are welded to form a sealed space between the light guide lens and the reflecting surface, thereby preventing water and dust from entering the sealed space. In addition, the rigidity against vibration and impact force acting on the side turn signal lamp is enhanced.
According to a fourth aspect of the present invention, in the side turn signal lamp according to the third aspect, an upright wall-shaped frame that forms a light source accommodation chamber that surrounds the light incident end portion is integrally formed on the base end portion side of the light guide lens. In this frame, an LED unit assembly including a printed circuit board on which the LED is mounted is configured to be attached and integrated by concavo-convex lance engagement.
(Operation) If the LED unit assembly is attached to the base end portion (the standing wall frame) of the light guide lens, the LED is automatically positioned with respect to the light incident end portion of the light guide lens.
Further, the LED unit assembly attached to the base end of the light guide lens and integrated as a side turn signal lamp can be integrated into the side mirror housing by assembling the LED unit assembly into the side mirror housing. That is, the side turn signal lamp can be easily attached to and detached from the side mirror.

請求項５においては、請求項４に記載のサイドターンシグナルランプにおいて、前記ＬＥＤユニットアッシーを前記立壁状の枠に取着することで密閉した前記光源収容室には、外部に連通する呼吸孔を設け、前記導光レンズには、該導光レンズと前記背面壁で画成した密閉空間と前記光源収容室とを連通する連通孔を設けるように構成した。
（作用）導光レンズと背面壁で画成された密閉空間が連通孔，光源収容室および呼吸孔を介して外部空間と連通するので、温度変化により、導光レンズの裏面や背面壁の反射面に結露が発生したり、導光レンズや背面壁が変形したりしない。また、背面壁に呼吸孔を設けることも可能であるが、呼吸孔に防塵・防水手段であるフィルタを装備する必要があり、構造が複雑化するのに対し、導光レンズに連通孔を設ける場合は、構造が複雑化することもない。 According to a fifth aspect of the present invention, in the side turn signal lamp according to the fourth aspect, the light source housing chamber sealed by attaching the LED unit assembly to the standing wall-shaped frame has a breathing hole communicating with the outside. The light guide lens is configured to be provided with a communication hole for communicating the light guide lens with the sealed space defined by the back wall and the light source accommodation chamber.
(Operation) Since the sealed space defined by the light guide lens and the back wall communicates with the external space through the communication hole, the light source accommodation chamber, and the breathing hole, reflection of the back surface and back wall of the light guide lens due to temperature change Condensation does not occur on the surface, and the light guide lens and the back wall do not deform. Although it is possible to provide a breathing hole on the back wall, it is necessary to equip the breathing hole with a filter that is a dustproof and waterproof means, and the structure is complicated. In this case, the structure is not complicated.

請求項６においては、請求項１〜５のいずれかに記載のサイドターンシグナルランプにおいて、前記導光レンズと前記ハウジングの開口部間に、前記開口部に対応する開口の形成された弾性材で構成したプロテクタを介在させるようにした。
（作用）プロテクタは、ハウジング（合成樹脂）と導光レンズ（合成樹脂）とをがたつかないように保持することで、両者が振動により直接当たって騒音が発生することを抑制するとともに、車両走行時の風切り音発生の原因となる隙間が両者間に生じることを防止する。 In Claim 6, in the side turn signal lamp in any one of Claims 1-5, it is an elastic material in which the opening corresponding to the said opening part was formed between the said light guide lens and the opening part of the said housing. The configured protector was interposed.
(Operation) The protector holds the housing (synthetic resin) and the light guide lens (synthetic resin) so that they do not rattle, so that they are prevented from directly contacting each other due to vibration and generating noise. A gap that causes wind noise during running is prevented from occurring between the two.

請求項１に係るサイドターンシグナルランプによれば、点灯時には車両後方への配光量および導光レンズ前面における発光量の双方が高められて車両後方および側方から被視認性に優れるとともに、非点灯時には奥行き感があって見栄えのよいサイドターンシグナルランプが提供される。   According to the side turn signal lamp of the first aspect, when the lamp is turned on, both the light distribution amount to the rear of the vehicle and the light emission amount on the front surface of the light guide lens are enhanced, and the visibility from the rear and the side of the vehicle is excellent. Sometimes a side turn signal lamp with good depth and good looking is provided.

請求項２によれば、非点灯時の奥行き感が強調されてさらに見栄えのよいサイドターンシグナルランプが提供される。   According to the second aspect of the present invention, a side turn signal lamp with a better appearance is provided by emphasizing a sense of depth when not lit.

請求項３によれば、防水・防塵性および耐久性に優れたサイドターンシグナルランプが提供される。   According to the third aspect of the present invention, a side turn signal lamp excellent in waterproof / dustproof property and durability is provided.

請求項４によれば、導光レンズ基端部（の立壁状の枠）にＬＥＤユニットアッシーを取着すれば、導光レンズの光入射端部に対しＬＥＤが自動的に位置決めされるので、サイドターンシグナルランプの組み立てが容易である。   According to claim 4, if the LED unit assembly is attached to the light guide lens base end portion (the standing wall-like frame), the LED is automatically positioned with respect to the light incident end portion of the light guide lens. The side turn signal lamp is easy to assemble.

請求項５によれば、温度変化により導光レンズの裏面や背面壁の反射面に結露が発生したり導光レンズや背面壁が変形したりすることのない簡潔な構造のサイドターンシグナルランプが提供される。   According to the fifth aspect of the present invention, there is provided a side turn signal lamp having a simple structure in which condensation does not occur on the back surface of the light guide lens and the reflection surface of the back wall or the light guide lens and the back wall are not deformed due to temperature change. Provided.

請求項６によれば、振動による騒音や車両走行時の風切り音発生のおそれのないサイドターンシグナルランプが提供される。   According to the sixth aspect of the present invention, a side turn signal lamp is provided which is free from the occurrence of noise caused by vibration and wind noise during vehicle travel.

次に、本発明の実施の形態を実施例に基づいて説明する。   Next, embodiments of the present invention will be described based on examples.

図１〜図５は本発明の一実施例を示し、図１は本発明の第１の実施例であるサイドターンシグナルランプの正面図、図２は同サイドターンシグナルランプの水平断面図（図１に示す線ＩＩ−ＩＩに沿う断面図）、図３は同サイドターンシグナルランプの縦断面図、図４は導光レンズの背後空間と光源収容室とを連絡する連通孔を示す断面図、図５は同サイドターンシグナルランプの分解斜視図である。   1 to 5 show one embodiment of the present invention, FIG. 1 is a front view of a side turn signal lamp according to a first embodiment of the present invention, and FIG. 2 is a horizontal sectional view of the side turn signal lamp (FIG. 1). 3 is a vertical cross-sectional view of the side turn signal lamp, FIG. 4 is a cross-sectional view showing a communication hole that connects the back space of the light guide lens and the light source accommodation chamber, FIG. 5 is an exploded perspective view of the side turn signal lamp.

これらの図において、符号１０は、サイドミラー本体４０を支持する合成樹脂製のサイドミラーハウジングで、ハウジング１０の湾曲する外側壁１１には、左右に延びる開口部１２が設けられるとともに、外側壁１１の開口部１２内側に横長のサイドターンシグナルランプ２０が組み付け一体化されている。   In these drawings, reference numeral 10 denotes a synthetic resin side mirror housing that supports the side mirror main body 40. The curved outer wall 11 of the housing 10 is provided with an opening 12 extending left and right and the outer wall 11. A laterally long side turn signal lamp 20 is assembled and integrated inside the opening 12.

サイドターンシグナルランプ２０は、基端部側に光入射端部２１ａが形成され、先端部側に光出射端部２１ｂが形成されて、ハウジング１０の湾曲する外側壁１１に略倣った形状に形成された合成樹脂製の導光レンズ２１と、導光レンズ２１の背後に離間するように溶着一体化された合成樹脂製の背面壁２６と、導光レンズ２２の基端部側に凹凸ランス係合により取着されたＬＥＤユニットアッシー３０で主として構成されている。   The side turn signal lamp 20 has a light incident end portion 21 a formed on the base end side and a light output end portion 21 b formed on the distal end side, and has a shape that substantially follows the curved outer wall 11 of the housing 10. The synthetic resin light guide lens 21, the synthetic resin back wall 26 welded and integrated behind the light guide lens 21, and the concave and convex lances on the base end side of the light guide lens 22 It is mainly composed of the LED unit assembly 30 attached by joining.

導光レンズ２１の基端部側には、４個の光入射端部２１ａおよびこれらの光入射端部２１ａを取り囲む立壁状の円筒枠２３が一体成形されており、円筒枠２３には、ＬＥＤユニットアッシー３０が取着されることで、円筒枠２３の内部にＬＥＤ３２を収容した光源収容室Ｓ１が画成されている（図２，４参照）。   On the base end side of the light guide lens 21, four light incident end portions 21a and a standing-wall-shaped cylindrical frame 23 surrounding these light incident end portions 21a are integrally formed. By attaching the unit assembly 30, a light source accommodation chamber S1 in which the LED 32 is accommodated is defined inside the cylindrical frame 23 (see FIGS. 2 and 4).

ＬＥＤユニットアッシー３０は、４個のＬＥＤ３２を搭載したプリント基板３１がキャップ３４内に収容一体化された構造で、キャップ３４側のフック３４ａが円筒枠２３側の掛止部２３ａに凹凸ランス係合することで、ＬＥＤユニットアッシー３０が導光レンズ２１の基端部側に一体化されるとともに、プリント基板３１が円筒枠２３側のボス（図示せず）に係合することで、ＬＥＤ３２は光源収容室Ｓ１において導光レンズ２１の光入射端部２１ａに正対しかつ接近した所定位置に位置決めされている。符号３３は、プリント基板３１にカシメ固定された後にハンダ溶接された接触端子、符号３６は、円筒枠２３の先端部とキャップ３４天上面間に介装されて、光源収容室Ｓ１を密閉するＯリングである。符号３５は、キャップ３４の天上壁に設けられた、フィルター３５ａを内蔵する円筒形状の呼吸孔で、密閉された光源収容室Ｓ１内を外気に連通させるためのものである。   The LED unit assembly 30 has a structure in which a printed circuit board 31 on which four LEDs 32 are mounted is housed and integrated in a cap 34, and a hook 34a on the cap 34 side is engaged with a latching lance 23a on a cylindrical frame 23 side. As a result, the LED unit assembly 30 is integrated with the base end side of the light guide lens 21, and the printed circuit board 31 is engaged with a boss (not shown) on the cylindrical frame 23 side. In the accommodation chamber S1, the light guide lens 21 is positioned at a predetermined position facing and close to the light incident end 21a. Reference numeral 33 is a contact terminal which is soldered and fixed to the printed circuit board 31 and soldered. Reference numeral 36 is interposed between the tip of the cylindrical frame 23 and the top surface of the cap 34 to seal the light source accommodation chamber S1. It is a ring. Reference numeral 35 denotes a cylindrical breathing hole that is provided on the top wall of the cap 34 and incorporates the filter 35a, and communicates the inside of the sealed light source housing chamber S1 with the outside air.

導光レンズ２１は、光入射端部２１ａから光出射端部２１ｂにかけて（基端部側から先端部側にかけて）徐々に板厚が薄くなるように形成された導光レンズ本体であるレンズ前面部２２を備え、光入射射端部２１ａから導光レンズ２１に入射したＬＥＤ３２の発光のほとんどの光は、導光レンズ２１（レンズ前面部２２）において内面反射を繰り返して導光レンズ２１の先端側に導かれ、光出射端部２１ｂから車体後方に例えば車軸に対し３０度の角度範囲に出射配光され、裏面に縦方向に延びるシリンドリカルステップ２１ｃが形成された光出射端部２１ｂ近傍からは、車体後方に例えば車軸に対し３０〜６０度の角度範囲に出射配光される。また、導光レンズ２１に入射したＬＥＤ３２の発光の一部は、導光レンズ２１の前面側（レンズ前面部２２）から車体側方に放射されて、レンズ前面部２２全体がほんのりと発光する。   The light guide lens 21 is a lens front surface portion that is a light guide lens body formed so that the plate thickness gradually decreases from the light incident end 21a to the light exit end 21b (from the base end side to the tip end side). 22, most of the light emitted from the LED 32 that has entered the light guide lens 21 from the light incident end portion 21 a is repeatedly reflected on the inner surface of the light guide lens 21 (lens front surface portion 22), thereby leading the tip side of the light guide lens 21. From the vicinity of the light emitting end 21b where a cylindrical step 21c is formed on the back surface, the light being distributed from the light emitting end 21b to the rear of the vehicle in an angle range of, for example, 30 degrees with respect to the axle. For example, the light is distributed to the rear of the vehicle in an angle range of 30 to 60 degrees with respect to the axle. Further, part of the light emitted from the LED 32 incident on the light guide lens 21 is radiated from the front surface side (lens front surface portion 22) of the light guide lens 21 toward the vehicle body side, and the entire lens front surface portion 22 emits light slightly.

レンズ前面部２２の外側縁にはシール脚２４が周設されており、シール脚２４には、開口部１２の周縁部に係合する外側に屈曲したフランジ部２５が円筒枠２３を除いた領域に形成されており、フランジ部２５が開口部１２の周縁部に係合することで、レンズ前面部２２が開口部１２から露呈した形態に組み付けられている。   A seal leg 24 is provided around the outer edge of the lens front surface portion 22, and an outer bent flange portion 25 that engages with the peripheral edge portion of the opening 12 is provided on the seal leg 24 except for the cylindrical frame 23. The lens front surface part 22 is assembled in a form exposed from the opening part 12 by engaging the flange part 25 with the peripheral edge part of the opening part 12.

符号２９は、スポンジやゴム等の弾性材で構成されたプロテクタで、レンズ前面部２２の周りにあって、導光レンズ２１側のフランジ部２５とハウジング１０の開口部１２背面間に介在されて、ハウジング１０（合成樹脂）と導光レンズ２１（合成樹脂）とをがたつかないように保持することで、振動により両者１０，２１が直接当たって騒音が発生することがないように、また、両者１０，２１間に隙間が形成されないように保持することで、風切り音が発生することがないように構成されている。また、プロテクタ２９の基端部側２９ａは幅広Ｔ字型に形成されて、この幅広の基端部側２９ａが導光レンズ２１の円筒枠２３外周に捲回されて、円筒枠２３（光源収容室Ｓ１）からの漏光を防止するようになっている。   Reference numeral 29 denotes a protector made of an elastic material such as sponge or rubber. The protector 29 is disposed around the lens front surface portion 22 and is interposed between the flange portion 25 on the light guide lens 21 side and the back surface of the opening portion 12 of the housing 10. By holding the housing 10 (synthetic resin) and the light guide lens 21 (synthetic resin) so that they do not rattle, both the 10 and 21 are not directly brought into contact with each other by vibration, and noise is not generated. By keeping the gaps 10 and 21 so that no gaps are formed, wind noise is not generated. Further, the base end side 29a of the protector 29 is formed in a wide T-shape, and the wide base end side 29a is wound around the outer periphery of the cylindrical frame 23 of the light guide lens 21 to form the cylindrical frame 23 (light source housing). Light leakage from the chamber S1) is prevented.

背面壁２６は、導光レンズ２１におけるレンズ前面部２２に周設されたシール脚２４に溶着されることで、導光レンズ２１（のレンズ前面部２２）と背面壁２６との間には、水や塵の侵入できない密閉空間Ｓ２が形成されるとともに、サイドターンシグナルランプ２０に作用する振動や衝撃力に対する剛性が高められている。   The back wall 26 is welded to a seal leg 24 provided around the lens front surface portion 22 of the light guide lens 21, so that the light guide lens 21 (the lens front surface portion 22) and the back wall 26 are A sealed space S2 into which water and dust cannot enter is formed, and rigidity against vibration and impact force acting on the side turn signal lamp 20 is enhanced.

導光レンズ２１に溶着された背面壁２６は、レンズ前面部２２と略同一の湾曲形状に形成されるとともに、その前面にはアルミ蒸着反射面２７が形成されており、導光レンズの特性からしてレンズ前面部２２裏面からの漏光量がたとえ僅かであっても、この僅かな漏光が反射面２７で反射してレンズ前面部２２に入射することで、導光レンズ２１の車両後方への配光量およびレンズ前面部２２におけるほんのりとした発光量を増加させるように構成されている。   The rear wall 26 welded to the light guide lens 21 is formed in a curved shape substantially the same as the lens front surface portion 22, and an aluminum vapor deposition reflecting surface 27 is formed on the front surface thereof. Even if the amount of light leakage from the back surface of the lens front surface portion 22 is small, the slight light leakage is reflected by the reflection surface 27 and enters the lens front surface portion 22, so that the light guide lens 21 is moved toward the rear of the vehicle. The light distribution amount and the slight light emission amount at the lens front surface portion 22 are increased.

また、レンズ前面部２２と背面壁２６の反射面２７との間には、所定の隙間（密閉空間）Ｓ２が形成されており、これにより、非点灯時のサイドターンシグナルランプ２０に奥行き感が生じる。なお、導光レンズ２１（レンズ前面部２２）の裏面と背面壁２６の反射面２７の離間距離としては、大きく離間させるほどランプ２０の奥行き感が増して好ましいが、サイドミラーハウジング１０内の他部品と干渉しないようにランプ２０の薄型化も考慮すると、２〜１０ｍｍ程度が望ましい。   In addition, a predetermined gap (sealed space) S2 is formed between the lens front surface portion 22 and the reflection surface 27 of the rear wall 26, and thereby, the side turn signal lamp 20 when not lit has a sense of depth. Arise. Note that the distance between the rear surface of the light guide lens 21 (lens front surface portion 22) and the reflection surface 27 of the rear wall 26 is preferably increased as the distance between the lamps 20 increases. In consideration of reducing the thickness of the lamp 20 so as not to interfere with the parts, about 2 to 10 mm is desirable.

さらに、背面壁２６の反射面２７には、左右に延びる３本のシリンドリカルステップ２８が上下方向略等間隔に設けられており、ランプ２０の非点灯時には、このシリンドリカルステップ２８が導光レンズ２１（のレンズ前面部２２）を通して帯状のクリスタル模様のように透けて見えて、反射面２７をシリンドリカルステップ２８を設けない平滑面で形成した場合に比べて、ランプ２０の奥行き感が強調されている。   Further, three cylindrical steps 28 extending in the left-right direction are provided on the reflecting surface 27 of the back wall 26 at substantially equal intervals in the vertical direction. When the lamp 20 is not lit, the cylindrical steps 28 are formed by the light guide lens 21 ( The depth of the lamp 20 is emphasized as compared with the case where the reflecting surface 27 is formed as a smooth surface without the cylindrical step 28, which can be seen through like a band-like crystal pattern through the lens front surface portion 22).

符号２６ａは、背面壁２６に延出形成されている屈曲ブラケットで、ブラケット２６ａの先端部には、ハウジング１０にランプ２０を取り付けるための締結ねじ配設用のねじ挿通孔２６ｂが設けられている。   Reference numeral 26a denotes a bent bracket that is formed to extend to the back wall 26, and a screw insertion hole 26b for installing a fastening screw for attaching the lamp 20 to the housing 10 is provided at the tip of the bracket 26a. .

また、ランプ２０の基端部側に設けられた光源収容室Ｓ１は、キャップ３４に設けた呼吸孔３５を介して外部に連通しているが、導光レンズ２１と背面壁２６で画成された密閉空間Ｓ２は、密閉空間Ｓ２と光源収容室Ｓ１を隔てる隔壁（シール脚２４と円筒枠２３を画成する隔壁）２３ｂに設けられた連通孔３７によって連通している。このため、レンズ前面部２２背後の密閉空間Ｓ２は、連通孔３７，光源収容室Ｓ１および呼吸孔３５を介してランプ外部と連通し、温度変化により、導光レンズ２１の裏面や背面壁２６の反射面２７に結露が発生したり、導光レンズ２１や背面壁２６が変形したりする不具合がない。   The light source accommodation chamber S1 provided on the base end side of the lamp 20 communicates with the outside through a breathing hole 35 provided in the cap 34, but is defined by the light guide lens 21 and the back wall 26. The sealed space S2 is communicated by a communication hole 37 provided in a partition wall (a partition wall defining the seal leg 24 and the cylindrical frame 23) 23b separating the sealed space S2 and the light source housing chamber S1. For this reason, the sealed space S2 behind the lens front surface portion 22 communicates with the outside of the lamp through the communication hole 37, the light source housing chamber S1, and the breathing hole 35, and the back surface of the light guide lens 21 and the rear wall 26 are changed by temperature change. There is no problem that condensation occurs on the reflection surface 27 or the light guide lens 21 and the back wall 26 are deformed.

なお、前記した実施例では、背面壁２６の反射面２７がアルミ蒸着反射面で構成されているが、第２の実施例としては、背面壁２６の反射面２７を反射塗装面で構成してもよい。   In the above-described embodiment, the reflection surface 27 of the back wall 26 is constituted by an aluminum vapor deposition reflection surface. However, as a second embodiment, the reflection surface 27 of the back wall 26 is constituted by a reflection coating surface. Also good.

また、前記第１の実施例のアルミ蒸着反射面２７の上に形成するトップコート層や前記第２の実施例の反射塗装面（反射塗装膜）をそれぞれ車体色と略同一色に構成することで、サイドターンシグナルランプ２０に車体との色彩上の統一感をもたせるようにしてもよい。   Further, the top coat layer formed on the aluminum vapor deposition reflective surface 27 of the first embodiment and the reflective coating surface (reflective coating film) of the second embodiment are configured to have substantially the same color as the vehicle body color. Thus, the side turn signal lamp 20 may have a sense of unity in color with the vehicle body.

本発明の第１の実施例であるサイドターンシグナルランプの正面図である。It is a front view of the side turn signal lamp which is the 1st example of the present invention. 同サイドターンシグナルランプの水平断面図（図１に示す線ＩＩ−ＩＩに沿う断面図）である。It is a horizontal sectional view (sectional view along line II-II shown in FIG. 1) of the side turn signal lamp. 同サイドターンシグナルランプの縦断面図である。It is a longitudinal cross-sectional view of the side turn signal lamp. 導光レンズの背後空間と光源収容室とを連絡する連通孔を示す断 面図である。FIG. 5 is a cross-sectional view showing a communication hole that communicates the space behind the light guide lens and the light source accommodation chamber. 同サイドターンシグナルランプの分解斜視図である。It is a disassembled perspective view of the side turn signal lamp. 第１の従来技術であるサイドターンシグナルランプの水平断面図である。It is a horizontal sectional view of the side turn signal lamp which is the first prior art. 第２の従来技術であるサイドターンシグナルランプの水平断面図である。It is a horizontal sectional view of the side turn signal lamp which is the 2nd prior art.

符号の説明Explanation of symbols

１０ サイドミラーハウジング
１１ ハウジングの外側壁
１２ 左右に延びる開口部
２０ サイドターンシグナルランプ
２１ 導光レンズ
２１ａ 導光レンズの光入射端部
２１ｂ 導光レンズの光出射端部
２２ レンズ前面部
２３ 光源収容室を構成する円筒枠
２３ａ 凹凸ランス係合部を構成する円筒枠側の掛止部
２６ 背面壁
Ｓ２ レンズ前面部と背面壁間の隙間
２７ アルミ蒸着反射面
２８ 反射面に形成された左右に延びるシリンドリカルステップ
３０ ＬＥＤユニットアッシー
３２ 光源であるＬＥＤ
３４ キャップ
３４ａ 凹凸ランス係合部を構成するキャップ側のフック
Ｓ１ 光源収容室
３５ 呼吸孔
３７ 連通孔 DESCRIPTION OF SYMBOLS 10 Side mirror housing 11 Outer wall 12 of housing 12 Opening part extended right and left 20 Side turn signal lamp 21 Light guide lens 21a Light incident end part 21b of light guide lens Light emission end part 22 Light source lens part 23 Light source accommodation chamber The cylindrical frame 23a The latching portion on the cylindrical frame side constituting the concave / convex lance engaging portion 26 Back wall S2 Clearance between the lens front portion and the rear wall 27 Aluminum vapor deposition reflecting surface 28 Cylindrical extending left and right formed on the reflecting surface Step 30 LED unit assembly 32 LED as light source
34 Cap 34a Cap-side hook constituting the concave / convex lance engaging portion S1 Light source accommodation chamber 35 Breathing hole 37 Communication hole

Claims (6)

サイドミラー本体を支持するサイドミラーハウジングと、前記ハウジングの湾曲する外側壁に設けられた左右に延びる開口部と、前記ハウジングの内外にその光入出射端部が配置されて前記開口部からその湾曲する前面側が露呈するように組み付けられた導光レンズと、前記導光レンズの光入射端部近傍に配置された光源であるＬＥＤと、を備えたサイドターンシグナルランプにおいて、
前記導光レンズの背後には、前面に反射処理を施した背面壁が所定の隙間を隔てて配設されたことを特徴とするサイドターンシグナルランプ。 A side mirror housing that supports the side mirror body, a left and right opening provided on the curved outer wall of the housing, and a light incident / exit end portion disposed on the inside and outside of the housing. In a side turn signal lamp comprising: a light guide lens assembled so that the front side to be exposed; and an LED that is a light source disposed in the vicinity of a light incident end of the light guide lens,
A side turn signal lamp, wherein a rear wall having a front surface subjected to reflection treatment is disposed behind the light guide lens with a predetermined gap therebetween. 前記背面壁の反射処理面には、左右に延びるシリンドリカルステップ複数本が上下方向等間隔に設けられたことを特徴とする請求項１に記載のサイドターンシグナルランプ。   The side turn signal lamp according to claim 1, wherein a plurality of cylindrical steps extending in the left-right direction are provided at equal intervals in the vertical direction on the reflection processing surface of the back wall. 前記導光レンズの周縁部にはシール脚が周設され、該シール脚が前記背面壁に溶着されたことを特徴とする請求項１または２に記載のサイドターンシグナルランプ。   The side turn signal lamp according to claim 1 or 2, wherein a seal leg is provided around the periphery of the light guide lens, and the seal leg is welded to the back wall. 前記導光レンズの基端部側には、前記光入射端部を取り囲む光源収容室を形成する立壁状の枠が一体成形されるとともに、該枠には、前記ＬＥＤを搭載したプリント基板を備えたＬＥＤユニットアッシーが凹凸ランス係合により取着一体化されたことを特徴とする請求項３に記載のサイドターンシグナルランプ。   On the base end side of the light guide lens, a standing wall-shaped frame forming a light source housing chamber surrounding the light incident end is integrally formed, and the frame includes a printed board on which the LED is mounted. 4. The side turn signal lamp according to claim 3, wherein the LED unit assembly is integrally attached by means of an uneven lance engagement. 前記ＬＥＤユニットアッシーが前記立壁状の枠に取着されることで密閉された前記光源収容室には、外部に連通する呼吸孔が設けられ、前記導光レンズには、該導光レンズと前記背面壁で画成された密閉空間と前記光源収容室とを連通する連通孔が設けられたことを特徴とする請求項４に記載のサイドターンシグナルランプ。   The light source housing chamber sealed by attaching the LED unit assembly to the standing wall-like frame is provided with a breathing hole communicating with the outside, and the light guide lens includes the light guide lens and the light guide chamber. The side turn signal lamp according to claim 4, wherein a communication hole that communicates the sealed space defined by a back wall and the light source accommodation chamber is provided. 前記導光レンズと前記ハウジングの開口部間には、前記開口部に対応する開口の形成された弾性材で構成したプロテクタが介在されたことを特徴とする請求項１〜５のいずれかに記載のサイドターンシグナルランプ。   The protector comprised with the elastic material in which the opening corresponding to the said opening part was formed was interposed between the said light guide lens and the opening part of the said housing, The Claim 1 characterized by the above-mentioned. Side turn signal lamp.
JP2004299849A 2004-10-14 2004-10-14 Side turn signal lamp Expired - Fee Related JP4609881B2 (en)

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