JP2007250290A - Side turn signal lamp - Google Patents

Side turn signal lamp Download PDF

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Publication number
JP2007250290A
JP2007250290A JP2006070295A JP2006070295A JP2007250290A JP 2007250290 A JP2007250290 A JP 2007250290A JP 2006070295 A JP2006070295 A JP 2006070295A JP 2006070295 A JP2006070295 A JP 2006070295A JP 2007250290 A JP2007250290 A JP 2007250290A
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light guide
light
lamp
outer lens
line
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JP4640994B2 (en
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Toranosuke Sakuma
寅之助 佐久間
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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)
  • Planar Illumination Modules (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a highly-attractive side turn signal lamp capable of forming an appropriate light distribution to an obliquely rear side of a vehicle and an unconventional light distribution to the side of the vehicle which is not too bright only by incident light to a light entering end of a light guide lens. <P>SOLUTION: The lamp 20 includes: an outer lens 21 having a design surface 22 thereof engaging with an opening 12 extending to the right and left of a curved outside wall 11 of a mirror housing 10; a lamp body 26 attached behind the outer lens 21 for delimiting a lamp chamber having a nearly constant depth; the light guide lens extending to the right and left along the outer lens 21 in the lamp chamber S; and an LED 42 arranged in the vicinity of the light entering end of the light guide lens. A light guide lens unit U is composed of a plurality of linear light guides 31 each having a cross-sectionally nearly circular shape, approaching to the outer lens 21, and vertically arranged side by side, and steps 31b for reflecting guided light are formed in the whole back-side area of the respective light guides 31. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、自動車のサイドミラーに内蔵一体化されて、少なくとも車両の斜め後方に配光する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 that is integrated in a side mirror of an automobile and distributes light at least obliquely behind the vehicle.

下記特許文献１には、図１１に示すように、サイドミラーハウジング１の外側壁に設けた左右に延びる開口部１ａにその意匠面２ａが係合できるように構成された湾曲アウターレンズ２と、アウターレンズ２と協働して灯室を画成するバックカバー５付き湾曲ランプボディ４と、ランプボディ４の背面壁４ａに支持された合成樹脂製の湾曲導光レンズ６と、導光レンズ６の光入射端部６ｂ１に対向して配置されたＬＥＤ７と、導光レンズ６の裏側に長手方向等間隔に配置されたＬＥＤ８を備えたサイドターンシグナルランプが開示されている。   In Patent Document 1 below, as shown in FIG. 11, a curved outer lens 2 configured so that its design surface 2 a can be engaged with a left and right opening 1 a provided on the outer wall of the side mirror housing 1; A curved lamp body 4 with a back cover 5 that cooperates with the outer lens 2 to define a lamp chamber, a curved light guide lens 6 made of synthetic resin supported on a back wall 4a of the lamp body 4, and a light guide lens 6 There is disclosed a side turn signal lamp including an LED 7 disposed opposite to the light incident end portion 6b1 and LEDs 8 disposed on the back side of the light guide lens 6 at equal intervals in the longitudinal direction.

即ち、導光レンズ６は、図１２に示すように、平板部６ａの前面に左右に延びる凸条部６ｂが一体的に形成された形状で、凸条部６ｂの光入射端部６ｂ１に入射したＬＥＤ７の光は、導光レンズ６内を導かれて他端側の光出射端部６ｂ２から符号Ｌ１に示すように車両斜め後方に出射されるが、導光の一部が平板部６ａから漏光してしまって、車両斜め後方への出射光量が少ない（サイドターンシグナルランプとしての配光量が少ない）。   That is, as shown in FIG. 12, the light guide lens 6 has a shape in which a convex strip 6b extending in the left and right directions is integrally formed on the front surface of the flat plate portion 6a, and is incident on the light incident end 6b1 of the convex strip 6b. The light from the LED 7 is guided through the light guide lens 6 and emitted obliquely rearward of the vehicle from the light emitting end 6b2 on the other end side as indicated by reference numeral L1, but part of the light guide is emitted from the flat plate 6a. Light leaks and the amount of light emitted obliquely rearward of the vehicle is small (the amount of light distributed as a side turn signal lamp is small).

そこで、導光レンズ６の凸条部６ｂ，６ｂ間の背後に左右方向等間隔にＬＥＤ８を設けて、光出射端部６ｂ２からの出射光量（車両斜め後方への配光量）を増やすとともに、符号Ｌ２に示す車両側方への配光量も高めるようになっている。   Therefore, the LEDs 8 are provided at regular intervals in the left-right direction behind the ridges 6b, 6b of the light guide lens 6 to increase the amount of light emitted from the light emitting end 6b2 (the amount of light distributed obliquely behind the vehicle). The light distribution to the side of the vehicle indicated by L2 is also increased.

米国特許第６６３７９１７号US Pat. No. 6,637,917

しかし、前記した従来技術では、車両の斜め後方および側方への十分な配光量が得られるものの、使用するＬＥＤの数が多いためランプが高価となる。また、導光レンズ６の背後にＬＥＤ８を配置するため、ランプが前後方向に厚くなって、サイドミラーハウジング１内におけるランプ設置位置がそれだけ制約される。   However, although the above-described conventional technology can obtain a sufficient light distribution obliquely rearward and laterally of the vehicle, the lamp becomes expensive because of the large number of LEDs used. Further, since the LED 8 is disposed behind the light guide lens 6, the lamp becomes thick in the front-rear direction, and the lamp installation position in the side mirror housing 1 is limited accordingly.

また、ＬＥＤ８により導光レンズ６全体が発光するが、ランプ正対方向への配光（輝度）が強すぎるため、対向車のドライバーや歩行者にとってはまぶしすぎるという問題もあった。   Moreover, although the light guide lens 6 as a whole emits light by the LED 8, there is a problem that the light distribution (brightness) in the lamp facing direction is too strong, which is too dazzling for drivers and pedestrians of oncoming vehicles.

本発明は、前記従来技術の問題点に鑑みなされたもので、その目的は、導光レンズの光入射端部に入射した光だけで車両斜め後方に対してはサイドターンシグナルとして機能しかつ車両側方に対しては眩し過ぎない適正光量の配光を形成できる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 in view of the above-described problems of the prior art, and its purpose is to function as a side turn signal for a vehicle obliquely rearward with only light incident on the light incident end of the light guide lens and the vehicle. An object of the present invention is to provide a side turn signal lamp capable of forming a light distribution with an appropriate amount of light that is not too dazzling to the side.

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、サイドミラーハウジングの湾曲外側壁の左右に延びる開口部にその意匠面が係合するように構成された湾曲アウターレンズと、前記アウターレンズの背後に組み付け一体化されて、該アウターレンズと協働して灯室を画成する湾曲ランプボディと、前記灯室内に配設されて前記アウターレンズに沿って左右方向に延在し、その基端部側に光入射端部が設けられた合成樹脂製の湾曲導光レンズと、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、
前記湾曲導光レンズを、前記アウターレンズ内面に接近するように上下に並設した複数本の横断面略円形のライン状導光体で構成するとともに、それぞれのライン状導光体の裏側全域に、導光を該導光体の前面側に反射する反射ステップまたは点刻を設けるように構成した。
（作用）ライン状導光体の光入射端部に入射したＬＥＤの光は、内面反射を繰り返してライン状導光体の先端側まで導かれる際に、導光の一部が導光体の裏側全域に設けられている反射ステップ（または点刻）によって反射されて、導光体の前面側から出射し、車両斜め後方から側方の広範囲に配光される。特に、ライン状導光体の横断面は略円形（具体的には、光入射端部から入射した光が内面反射を繰り返して先端側まで導くことができる円に近い、例えば、図７（ａ） に示すような円形の他、図７（ｂ）に示すようなランプの上下方向を長径とする楕円形や、図７（ｃ）に示すような矩形状楕円形）に形成されて、導光体からの漏光がほとんどない（導光効率が高い）ため、光入射端部に入射するＬＥＤの光だけで車両斜め後方から側方にかけて略均一な光量の配光が形成される。即ち、複数のライン状導光体で構成した湾曲導光レンズによって、車両斜め後方に対してはサイドターンシグナルとして機能しかつ車両側方に対しては眩しすぎない適正光量の配光を形成できる。 In order to achieve the above object, in the side turn signal lamp according to claim 1, a curved outer lens configured such that a design surface thereof is engaged with an opening extending to the left and right of the curved outer wall of the side mirror housing; A curved lamp body that is assembled and integrated behind the outer lens to define a lamp chamber in cooperation with the outer lens, and is disposed in the lamp chamber and extends in the left-right direction along the outer lens. And a synthetic resin curved light guide lens provided with a light incident end on the base end side thereof, and an LED as a light source disposed in the vicinity of the light incident end of the light guide lens. In the side turn signal lamp,
The curved light guide lens is composed of a plurality of line-shaped light guides having a substantially circular cross section arranged side by side so as to approach the inner surface of the outer lens, and on the entire back side of each line-shaped light guide. The light guide is configured to be provided with a reflection step or a dot that reflects the light guide to the front side of the light guide.
(Operation) When the light of the LED incident on the light incident end of the line-shaped light guide repeats internal reflection and is guided to the front end side of the line-shaped light guide, a part of the light guide is The light is reflected by a reflection step (or a dot) provided in the entire rear side, is emitted from the front side of the light guide, and is distributed over a wide range from the rear side of the vehicle to the side. In particular, the cross-section of the line-shaped light guide is substantially circular (specifically, it is close to a circle in which light incident from the light incident end can be guided to the front end side by repeating internal reflection, for example, FIG. In addition to the circular shape shown in FIG. 7 (b), an elliptical shape having a major axis in the vertical direction of the lamp as shown in FIG. 7 (b), or a rectangular elliptical shape as shown in FIG. Since there is almost no light leakage from the light body (the light guide efficiency is high), a light distribution with a substantially uniform light amount is formed from the rear side of the vehicle to the side only by the light of the LED incident on the light incident end. In other words, the curved light guide lens composed of a plurality of line-shaped light guides can form a light distribution with an appropriate amount of light that functions as a side turn signal with respect to the rear of the vehicle and is not too dazzling with respect to the side of the vehicle. .

また、導光体は、アウターレンズ内面に接近して配設されているので、ランプ点灯時には、車両斜め後方から側方のどの方向から見ても、上下方向複数のライン状導光体の発光が鮮明に見える。   In addition, since the light guide is disposed close to the inner surface of the outer lens, when the lamp is lit, the light emitted from the plurality of line-shaped light guides in the vertical direction can be seen from any direction from the diagonally rear side of the vehicle. Looks clear.

また、導光レンズの背後には従来技術のようにＬＥＤを設けないため、それだけランプが薄型となる。   Further, since the LED is not provided behind the light guide lens as in the prior art, the lamp becomes thin accordingly.

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、前記ランプボディを、前記アウターレンズに略倣った湾曲形状に構成するとともに、前記ライン状導光体と前記ランプボディとの間に所定の隙間を形成するように構成した。
（作用）非点灯時には、アウターレンズを通して透けて見える上下に隣接するライン状導光体がクリスタル感を与えるとともに、隣接するライン状導光体間に見える暗い灯室内が奥行き感を与える。 According to a second aspect of the present invention, in the side turn signal lamp according to the first aspect, the lamp body is formed in a curved shape substantially following the outer lens, and the linear light guide and the lamp body A predetermined gap is formed between the two.
(Operation) When the lamp is not lit, the linear light guides vertically adjacent to be seen through the outer lens give a crystal feeling, and the dark lamp chamber visible between the adjacent linear light guides gives a sense of depth.

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、前記複数本のライン状導光体を、基端部側および先端部側をそれぞれ連結一体化したユニットとして構成し、一方、前記アウターレンズの基端部側には、先端部側から挿通した前記ライン状導光体ユニットの基端部側が係合できる開口部および該開口部を取り囲む光源収容室形成用の立壁状の枠を一体的に形成するとともに、該枠に、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取着するように構成した。
（作用）アウターレンズ基端部側の開口部からライン状導光体ユニットを挿通し、ライン状導光体ユニットの基端部側を該開口部に係合させることで、アウターレンズにライン状導光体ユニットを一体化させて、立壁状の枠内の所定位置にライン状導光体の光入射端部を配置できる。そして、アウターレンズ基端部側の立壁状の枠にＬＥＤユニットアッシーを取着すれば、ライン状導光体の光入射端部に対しＬＥＤが対向配置され、最後に、ランプボディをアウターレンズに接着や溶着などで一体化すれば、サイドターンシグナルランプの組み立てが完了する。 In the third aspect, in the side turn signal lamp according to the first or second aspect, the plurality of line-shaped light guides are configured as a unit in which a base end side and a front end side are respectively connected and integrated, On the other hand, on the base end side of the outer lens, an opening that can be engaged with the base end side of the linear light guide unit inserted from the tip end side and a standing wall shape for forming a light source housing chamber that surrounds the opening The LED unit assembly provided with the printed circuit board on which the LED is mounted is attached to the frame.
(Operation) A linear light guide unit is inserted through the opening on the outer lens base end side, and the base end side of the line light guide unit is engaged with the opening so that the outer lens has a line shape. By integrating the light guide unit, the light incident end of the line light guide can be arranged at a predetermined position in the standing wall-shaped frame. Then, if the LED unit assembly is attached to the standing wall-shaped frame on the outer lens base end side, the LED is disposed opposite to the light incident end of the linear light guide, and finally, the lamp body is used as the outer lens. If it is integrated by bonding or welding, the assembly of the side turn signal lamp is completed.

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ＬＥＤユニットアッシーを、前面側にＬＥＤを搭載し、前記立壁状の枠内の位置決め係合部に係合可能なプリント基板と、前記プリント基板の背面側に組み付けた弾性ホルダーと、前記立壁状の枠に凹凸ランス係合することで、前記立壁状の枠内に位置決めされた前記プリント基板を前記弾性ホルダーを介して固定保持する保護キャップとを備えるように構成した。
（作用）弾性ホルダーを組み付けたプリント基板を枠内の位置決め係合部に係合させ、保護キャップを枠に凹凸ランス係合することで、複数のライン状導光体の光入射端部に対し複数のＬＥＤを位置決めした状態に固定できる。 According to a fourth aspect of the present invention, in the side turn signal lamp according to the third aspect of the present invention, the LED unit assembly is mounted on the front surface side, and the printed circuit board can be engaged with the positioning engagement portion in the standing wall-shaped frame. And an elastic holder assembled on the back side of the printed circuit board, and an uneven lance engagement with the vertical wall frame, thereby fixing the printed circuit board positioned in the vertical wall frame via the elastic holder. It comprised so that the protective cap to hold | maintain might be provided.
(Operation) The printed circuit board with the elastic holder is engaged with the positioning engagement portion in the frame, and the protective cap is engaged with the concave and convex lances to the light incident end portions of the plurality of line-shaped light guides. A plurality of LEDs can be fixed in a positioned state.

特に、枠（光源収容室）内に収容されたプリント基板は、キャップの押圧力によって位置決め係合部に押し付けられた形態に固定保持されるが、キャップの押圧力が弾性ホルダーを介してプリント基板に作用するので、光源収容室内のプリント基板（ＬＥＤ）はライン状導光体の光入射端部に対しガタつくことなく固定保持される。   In particular, the printed circuit board accommodated in the frame (light source accommodation chamber) is fixed and held in a form pressed against the positioning engagement portion by the pressing force of the cap, but the pressing force of the cap is printed via the elastic holder. Therefore, the printed circuit board (LED) in the light source accommodation chamber is fixed and held without rattling with respect to the light incident end of the line light guide.

請求項１に係るサイドターンシグナルランプによれば、光入射端部に入射するＬＥＤの光だけで車両斜め後方から側方にかけて略均一な光量であって、車両斜め後方に対してはサイドターンシグナルとして機能しかつ車両側方に対しては眩しすぎない適正光量の配光を形成できるので、車両斜め後方からの被視認性は勿論、車両側方からの被視認性にも優れた安価なサイドターンシグナルランプを提供できる。特に、車両斜め後方から側方のどの方向から見ても、上下方向複数のライン状の発光が鮮明に見えるという斬新なサイドターンシグナルランプを提供できる。   According to the side turn signal lamp of the first aspect of the present invention, only the light of the LED incident on the light incident end is a substantially uniform light amount from the obliquely rearward side to the lateral side of the vehicle. It is possible to form a light distribution with an appropriate amount of light that is not too dazzling with respect to the side of the vehicle, so that it can be viewed from an oblique rear side of the vehicle, as well as an inexpensive side with excellent visibility from the side of the vehicle. Turn signal lamp can be provided. In particular, it is possible to provide a novel side turn signal lamp in which a plurality of lines of light emission in the vertical direction can be seen clearly from any direction from the diagonally rear side of the vehicle.

また、ランプが薄型となる分、サイドミラーハウジング内におけるランプ設置位置の制約がそれだけ緩和される。   Further, as the lamp becomes thinner, the restriction on the lamp installation position in the side mirror housing is alleviated accordingly.

請求項２によれば、奥行き感およびクリスタル感のある非点灯時の見栄えのよいサイドターンシグナルランプを提供できる。   According to the second aspect of the present invention, it is possible to provide a side turn signal lamp that has a sense of depth and a crystal feeling and is attractive when not turned on.

請求項３によれば、アウターレンズ基端部側にＬＥＤユニットアッシーを取着すれば、ライン状導光体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 3, if the LED unit assembly is attached to the outer lens base end side, the LED is automatically positioned with respect to the light incident end of the line-shaped light guide. Easy to assemble.

請求項４によれば、ライン状導光体の光入射端部に対しＬＥＤが確実に固定保持されるので、振動によってぶれの発生しない配光が得られる。   According to the fourth aspect of the present invention, since the LED is securely fixed and held with respect to the light incident end portion of the line-shaped light guide, a light distribution in which vibration does not occur due to vibration can be obtained.

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１０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斜視図、図４は同サイドターンシグナルランプの横断面図（図２に示す線ＩＶ−ＩＶに沿う断面図）、図５は同サイドターンシグナルランプの要部であるライン状導光体を組み付けたアウターレンズの背面斜視図、図６は前面側から見た同サイドターンシグナルランプの分解斜視図、図７（ａ），（ｂ），（ｃ）は同サイドターンシグナルランプの要部であるライン状導光体の横断面図、（ｄ）は図７（ｂ）に示す横断面をもつライン状導光体の背面斜視図、図８は背面側から見た同サイドターンシグナルランプの分解斜視図、図９は光源収容室周辺の縦断面図（図８に示す線ＩＸ−ＩＸに沿う断面図）、図１０はプリント基板に組み付ける弾性ホルダーの斜視図である。   1 to 10 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 perspective view of the side turn signal lamp, and FIG. 4 is a cross sectional view of the side turn signal lamp (cross section taken along line IV-IV shown in FIG. 2). 5 is a rear perspective view of an outer lens assembled with a linear light guide that is a main part of the side turn signal lamp. FIG. 6 is an exploded perspective view of the side turn signal lamp as viewed from the front side. (A), (b), (c) is a cross-sectional view of a line-shaped light guide which is a main part of the side turn signal lamp, and (d) is a line-shaped light guide having a cross-section shown in FIG. 7 (b). FIG. 8 is a rear perspective view of the light body, and FIG. Exploded perspective view of a turn signal lamp, FIG. 9 is a longitudinal sectional view near the light source accommodating chamber (sectional view taken along the line IX-IX shown in FIG. 8), FIG. 10 is a perspective view of an elastic holder for assembling the printed circuit board.

これらの図において、符号１０は、サイドミラー本体１４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 14. 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 horizontally 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、サイドミラーハウジング１０の外側壁１１の開口部１２にその意匠面２２係合するように構成された合成樹脂（例えば、アクリル樹脂）製の透明な湾曲アウターレンズ２１と、アウターレンズ２１のシール脚２５に溶着一体化されて、該アウターレンズ２１と協働して灯室Ｓ１を画成する合成樹脂製の湾曲ランプボディ２６と、灯室Ｓ１内に配設されてアウターレンズ２１の内面に沿って左右方向に延在する合成樹脂（例えば、アクリル樹脂）製の透明な湾曲導光レンズであるライン状導光体ユニットＵと、アウターレンズ２１の基端部側（図２右側）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４０で主として構成されている。符号２６ａは、ランプボディ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。   The side turn signal lamp 20 includes a transparent curved outer lens 21 made of a synthetic resin (for example, acrylic resin) configured to engage the design surface 22 with the opening 12 of the outer wall 11 of the side mirror housing 10; A synthetic resin curved lamp body 26 which is welded and integrated with the seal leg 25 of the outer lens 21 to define the lamp chamber S1 in cooperation with the outer lens 21, and the outer lens 21 is disposed in the lamp chamber S1. A linear light guide unit U that is a transparent curved light guide lens made of synthetic resin (for example, acrylic resin) extending in the left-right direction along the inner surface of the lens 21, and a base end side of the outer lens 21 (see FIG. 2 right side) is mainly composed of an LED unit assembly 40 attached by concave / convex lance engagement. Reference numeral 26a denotes a bent bracket that is formed to extend to the lamp body 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. .

ライン状導光体ユニットＵは、図６に示されるように、合成樹脂の一体成形体であって、図７（ａ），（ｂ）または（ｃ）のいずれかに示すような横断面略円形の３本のライン状導光体３１を上下方向等間隔に並設したユニットとして構成されている。図６符号３２ａ，３２ｂは、ライン状導光体３１の基端部側および先端部側の連結部である。また、各ライン状導光体３１の基端部側には光入射端部３１ａが設けられるとともに、各ライン状導光体３１の裏側全域には、導光を該導光体３１の前面側に反射する拡散反射ステップ３１Ｂが設けられており、導光体３１内の導光は、図７（ａ），（ｂ），（ｃ）の矢印に示すように、拡散反射面３１ｂで反射されて、導光体３１の前面側から拡散反射光として出射する。
なお、ライン状導光体３１の横断面の具体的な形状としては、円形（図７（ａ）），ランプの上下方向を長径とする楕円形（図７（ｂ）），矩形状楕円形（図７（ｃ））があり、いずれも光入射端部３１ａから入射した光が内面反射を繰り返して先端側まで導かれる略円形状に形成されて、導光体３１からの漏光がほとんどない（導光効率が高い）構造となっている。図７（ｄ）は、図７（ｂ）に示す横断面楕円形状のライン状導光体３１を裏側（背面側）から見た斜視図で、ライン状導光体３１の拡散反射ステップ３１ｂが蛇腹状に連続している。 As shown in FIG. 6, the line-shaped light guide unit U is an integrally molded body of synthetic resin, and has a substantially transverse cross section as shown in any one of FIGS. 7 (a), (b), and (c). It is configured as a unit in which three circular line-shaped light guides 31 are arranged at equal intervals in the vertical direction. Reference numerals 32a and 32b in FIG. 6 denote connecting portions on the proximal end side and the distal end side of the linear light guide 31. In addition, a light incident end portion 31 a is provided on the base end side of each line-shaped light guide 31, and light is guided to the entire back side of each line-shaped light guide 31 on the front side of the light guide 31. A diffuse reflection step 31B is provided to reflect the light, and the light guide in the light guide 31 is reflected by the diffuse reflection surface 31b as shown by arrows in FIGS. 7 (a), (b), and (c). Thus, the light is emitted as diffuse reflected light from the front side of the light guide 31.
The specific shape of the cross-section of the line-shaped light guide 31 is a circle (FIG. 7A), an ellipse having a major axis in the vertical direction of the lamp (FIG. 7B), or a rectangular ellipse. (FIG. 7 (c)), both of which are formed in a substantially circular shape in which the light incident from the light incident end portion 31a is repeatedly reflected on the inner surface and guided to the tip side, and there is almost no light leakage from the light guide 31. It has a structure (high light guide efficiency). FIG.7 (d) is the perspective view which looked at the line-shaped light guide 31 of the cross-sectional ellipse shape shown in FIG.7 (b) from the back side (back side), and the diffuse reflection step 31b of the line-shaped light guide 31 is shown. It is continuous in a bellows shape.

また、ライン状導光体ユニットＵの先端側に対応するアウターレンズ２１の裏側には、導光体ユニットＵ側の凹部３２ｃに係合できる凸部２１ａが設けられ、一方、アウターレンズ２１の基端部側（図２右側）には、ライン状導光体ユニットＵの基端部側（ライン状導光体３１の基端部側連結部３２ａ）が係合できる開口部２３および該開口部２３を取り囲む光源収容室Ｓ２形成用の立壁状の円筒枠２４が一体成形されている。なお、導光体ユニットＵをアウターレンズ２１に組み付けるには、導光体ユニットＵをその先端側から開口部２３に挿通し、導光体ユニットＵの基端部側連結部３２ａを開口部２３に圧入すればよい。   A convex portion 21 a that can be engaged with the concave portion 32 c on the light guide unit U side is provided on the back side of the outer lens 21 corresponding to the distal end side of the line-shaped light guide unit U. On the end side (the right side in FIG. 2), an opening 23 that can be engaged with the base end side of the line-shaped light guide unit U (base end side connecting portion 32a of the line-shaped light guide 31) and the opening An upright wall-shaped cylindrical frame 24 for forming the light source housing chamber S2 surrounding the 23 is integrally formed. In order to assemble the light guide unit U to the outer lens 21, the light guide unit U is inserted into the opening 23 from the distal end side, and the base end side connecting portion 32 a of the light guide unit U is opened to the opening 23. You can press fit into.

また、円筒枠２４には、ＬＥＤユニットアッシー４０が凹凸ランス係合により取着一体化されて、光源収容室Ｓ２においてライン状導光体３１の光入射端部３１ａとＬＥＤ４２が対向配置されている。   In addition, the LED unit assembly 40 is attached to and integrated with the cylindrical frame 24 by concavo-convex lance engagement, and the light incident end portion 31a of the line-shaped light guide 31 and the LED 42 are opposed to each other in the light source accommodation chamber S2. .

即ち、ＬＥＤユニットアッシー４０は、前面側に３個のＬＥＤ４２を搭載し、背面側に接触端子４３を取り付けたプリント基板４１と、円筒枠２４に凹凸ランス係合することで、円筒枠２４内の光源収容室Ｓ２を密閉できる保護キャップ４８で構成されている。符号４９は、円筒枠２４の先端部と保護キャップ４８天板部間に介装されて、光源収容室Ｓ２を密閉するＯリングである。保護キャップ４８の側壁には、凹部である開口部４８ａが設けられ、円筒枠２４には凸部２４ａが設けられ、両者４８ａ，２４ａによってＬＥＤユニットアッシー４０をアウターレンズ２１の基端部側（の円筒枠２４）に固定する凹凸ランス係合部が構成されている。また、プリント基板４１には、接触端子４３を担持する合成樹脂（ポリオキシメチレン；ＰＯＭ）製の弾性ホルダー４６が組み付けられており、プリント基板４１に弾性ホルダー４６を組み付けた後に、接触端子４３をプリント基板４１にハンダ溶接する。   That is, the LED unit assembly 40 has three LEDs 42 mounted on the front side, and a concave and convex lance engagement with the printed circuit board 41 having the contact terminals 43 mounted on the back side and the cylindrical frame 24. It is comprised by the protective cap 48 which can seal light source accommodation chamber S2. Reference numeral 49 denotes an O-ring that is interposed between the front end portion of the cylindrical frame 24 and the protective cap 48 top plate portion and seals the light source accommodation chamber S2. An opening 48a, which is a recess, is provided on the side wall of the protective cap 48, and a projection 24a is provided on the cylindrical frame 24. The LED unit assembly 40 is attached to the base end side (of the outer lens 21) by both 48a, 24a. A concave / convex lance engaging portion is formed to be fixed to the cylindrical frame 24). Further, an elastic holder 46 made of a synthetic resin (polyoxymethylene; POM) that carries the contact terminal 43 is assembled to the printed circuit board 41. After the elastic holder 46 is assembled to the printed circuit board 41, the contact terminal 43 is attached to the printed circuit board 41. Solder welding is performed on the printed circuit board 41.

図１０符号４６ａ，４６ｂは、弾性ホルダー４６の下面側（前面側）に設けられた一対のフックおよび係合突起で、フック４６ａがプリント基板４１側の係合孔（図示せず）に係合することで、プリント基板４１の背面側に組み付けられている。また、符号４６ｃは、弾性ホルダー４６の上面側（背面側）に設けられた４個の突起で、円筒枠２４に取着された保護キャップ４８の天板部に圧接される部位である。符号４６ｄは、弾性ホルダー４６の上面側（背面側）に設けられて、接触端子４３を幅方向に移動しないように支持するリブである。   Reference numerals 46a and 46b in FIG. 10 are a pair of hooks and engagement protrusions provided on the lower surface side (front surface side) of the elastic holder 46. The hooks 46a engage with engagement holes (not shown) on the printed circuit board 41 side. As a result, the printed circuit board 41 is assembled on the back side. Reference numeral 46 c denotes four portions provided on the upper surface side (rear surface side) of the elastic holder 46, which are portions that are pressed against the top plate portion of the protective cap 48 attached to the cylindrical frame 24. Reference numeral 46d is a rib that is provided on the upper surface side (rear surface side) of the elastic holder 46 and supports the contact terminal 43 so as not to move in the width direction.

また、プリント基板４１には、図９に示すように、円筒枠２４内の位置決め係合部であるボス２４ｂに係合可能な係合孔４１ａが設けられ、係合孔４１ａをボス２４ｂに係合させてプリント基板４１を円筒枠２４内に収容することで、自動的に３個のＬＥＤ４２が３個の光入射端部３１ａに正対する位置となる。さらに、保護キャップ４８を円筒枠２４に凹凸ランス係合させることで、キャップ４８の押圧力が弾性ホルダー４６を介して、位置決め係合部であるボス２４ｂに担持されたプリント基板４１に作用するので、光源収容室Ｓ２内のプリント基板４１（ＬＥＤ４２）はライン状導光体３１の光入射端部３１ａに対しガタつくことなく固定保持される。   Further, as shown in FIG. 9, the printed board 41 is provided with an engagement hole 41a that can be engaged with a boss 24b that is a positioning engagement portion in the cylindrical frame 24, and the engagement hole 41a is engaged with the boss 24b. When the printed circuit board 41 is accommodated in the cylindrical frame 24 together, the three LEDs 42 are automatically positioned to face the three light incident end portions 31a. Further, by engaging the protective cap 48 with the concave / convex lance on the cylindrical frame 24, the pressing force of the cap 48 acts on the printed circuit board 41 carried on the boss 24b as the positioning engagement portion via the elastic holder 46. The printed circuit board 41 (LED 42) in the light source housing chamber S2 is fixedly held without rattling with respect to the light incident end 31a of the line-shaped light guide 31.

符号５０は、保護キャップ４８の天上壁に設けられた、フィルター（図示せず）を内蔵する円筒形状の呼吸孔で、密閉された光源収容室Ｓ２および灯室Ｓ１内を外気に連通させるためのものである。即ち、光源収容室Ｓ２と灯室Ｓ１は、ライン状導光体３１の基端部側連結部３２ａが係合する開口部２３の周縁部に設けられている連通孔２３ａ（図２参照）によって連通している。このため、密閉された灯室Ｓ１は、連通孔２３ａ，光源収容室Ｓ２および呼吸孔５０を介してランプ外部と連通し、温度変化により、アウターレンズ２１の裏面やランプボディ２６の内側に結露が発生したり、ライン状導光体３１やランプボディ２６が変形したりする不具合がない。   Reference numeral 50 denotes a cylindrical breathing hole which is provided on the top wall of the protective cap 48 and incorporates a filter (not shown) for communicating the inside of the sealed light source accommodation chamber S2 and the lamp chamber S1 with the outside air. Is. That is, the light source housing chamber S2 and the lamp chamber S1 are connected to each other by a communication hole 23a (see FIG. 2) provided at the peripheral edge of the opening 23 with which the base end side connecting portion 32a of the line light guide 31 is engaged. Communicate. For this reason, the sealed lamp chamber S1 communicates with the outside of the lamp through the communication hole 23a, the light source storage chamber S2, and the breathing hole 50, and condensation occurs on the back surface of the outer lens 21 or the inside of the lamp body 26 due to temperature change. There are no problems that occur or the line-shaped light guide 31 and the lamp body 26 are deformed.

次に、ライン状導光体ユニットＵのライン状導光体３１の導光作用について説明する。   Next, the light guide action of the line light guide 31 of the line light guide unit U will be described.

ライン状導光体３１の光入射端部３１ａに入射したＬＥＤ４２の光は、内面反射を繰り返してライン状導光体３１の先端側まで導かれる際に、導光の一部が導光体３１の裏側全域に設けられている拡散反射ステップ３１ｂによって反射されて、導光体３１の前面側から出射し、図２符号Ｌ３で示す車両斜め後方から符号Ｌ４で示す車両側方の広範囲の領域に配光される。特に、ライン状導光体３１の横断面は略円形（光入射端部３１ａから入射した光が内面反射を繰り返して先端側まで導かれる円に近い、例えば、図７（ａ），（ｂ），（ｃ） に示すような円形，楕円形，矩形状楕円形）に形成されて、導光体３１からの漏光がほとんどない（導光効率が高い）ため、光入射端部３１ａに入射するＬＥＤ４２の光だけで車両斜め後方から車両側方にかけて均一な光量の配光が形成される。即ち、３本のライン状導光体３１で構成したライン状導光体ユニットＵによって、車両斜め後方に対してはサイドターンシグナルとして機能しかつ車両側方に対しては眩しすぎない適正光量の配光を形成できる。   When the light of the LED 42 incident on the light incident end portion 31 a of the line-shaped light guide 31 is repeatedly reflected on the inner surface and guided to the tip end side of the line-shaped light guide 31, a part of the light guide is used. The light is reflected by the diffuse reflection step 31b provided in the entire back side of the light, and is emitted from the front side of the light guide 31, and from an oblique rear side of the vehicle indicated by L3 in FIG. 2 to a wide area on the side of the vehicle indicated by L4. Light distribution. In particular, the cross-section of the line-shaped light guide 31 is substantially circular (close to a circle in which light incident from the light incident end portion 31a is guided to the front end side by repeating internal reflection, for example, FIGS. 7A and 7B. , (C) are formed in a circular shape, an elliptical shape, a rectangular elliptical shape), and there is almost no light leakage from the light guide 31 (high light guiding efficiency), so that the light is incident on the light incident end 31a. A uniform light distribution is formed from the rear of the vehicle to the side of the vehicle using only the light from the LED 42. In other words, the line-shaped light guide unit U formed by the three line-shaped light guides 31 functions as a side turn signal with respect to the rear of the vehicle and has an appropriate amount of light that is not too dazzling with respect to the side of the vehicle. A light distribution can be formed.

また、ライン状導光体ユニットＵ（ライン状導光体３１）は、アウターレンズ２１の内面に接近して配設されているので、ランプ点灯時には、アウターレンズ２１を通して車両斜め後方から側方のどの方向から見ても、上下方向３本のライン状導光体３１の発光が鮮明に見える。   Further, since the line-shaped light guide unit U (line-shaped light guide 31) is disposed close to the inner surface of the outer lens 21, when the lamp is turned on, the line-shaped light guide unit U (line-shaped light guide 31) passes through the outer lens 21 from the diagonally rear side of the vehicle. When viewed from any direction, the light emission of the three linear light guides 31 in the vertical direction is clearly visible.

また、ライン状導光体ユニットＵ（ライン状導光体３１）とランプボディ２６間には、所定の隙間が形成されており、非点灯時には、アウターレンズ２１を通して透けて見える上下に隣接する３本のライン状導光体３１がクリスタル間を与えるとともに、隣接するライン状導光体３１，３１間に暗い灯室内が奥行き感を与える。   Further, a predetermined gap is formed between the line-shaped light guide unit U (line-shaped light guide 31) and the lamp body 26, and 3 adjacent to the top and bottom that can be seen through the outer lens 21 when not lit. The line-shaped light guide 31 provides the space between the crystals, and the dark lamp chamber provides a sense of depth between the adjacent line-shaped light guides 31 and 31.

なお、前記した実施例では、ライン状導光体３１の裏側に導光を前面側に反射する手段として拡散反射ステップ３１ｂが設けられていたが、拡散反射ステップ３１ｂに代えて点刻で構成してもよい。   In the above-described embodiment, the diffuse reflection step 31b is provided on the back side of the line-shaped light guide 31 as means for reflecting the light guide to the front side. May be.

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斜視図である。It is a perspective view 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（図２に示す線ＩＶ−ＩＶに沿う断面図）である。It is a longitudinal cross-sectional view (cross-sectional view in alignment with line IV-IV shown in FIG. 2) of the side turn signal lamp. 同サイドターンシグナルランプの要部であるライン状導光体を組み付けたアウターレンズの背面斜視図である。It is a back perspective view of the outer lens which assembled | attached the linear light guide which is the principal part of the side turn signal lamp. 前面側から見た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 the disassembled perspective view of the same side turn signal lamp seen from the front side. （ａ），（ｂ），（ｃ）は同サイドターンシグナルランプの要部であるライン状導光体の横断面図、（ｄ）は図７（ｂ）に示す横断面をもつライン状導光体の背面斜視図である。(A), (b), (c) is a cross-sectional view of a line-shaped light guide which is a main part of the side turn signal lamp, and (d) is a line-shaped light guide having a cross-section shown in FIG. 7 (b). It is a back perspective view of a light body. 背面側から見た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 the disassembled perspective view of the same side turn signal lamp seen from the back side. 光源収容室周辺の縦断面図（図８に示す線ＩＸ−ＩＸに沿う断面図）である。It is a longitudinal cross-sectional view (cross-sectional view in alignment with line IX-IX shown in FIG. 8) around a light source accommodation chamber. プリント基板に組み付ける弾性ホルダーの斜視図である。It is a perspective view of the elastic holder assembled | attached to a printed circuit board. 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 a prior art. 導光レンズの斜視図である。It is a perspective view of a light guide lens.

符号の説明Explanation of symbols

１０ サイドミラーハウジング
１１ サイドミラーハウジングの湾曲外側壁
１２ 左右に延びる開口部
１４ サイドミラー本体
２０ サイドターンシグナルランプ
Ｓ１ 灯室
２１ 湾曲アウターレンズ
２２ アウターレンズの意匠面
２３ アウターレンズの基端部側に設けた開口部
Ｓ２ 光源収容室
２４ 光源収容室形成用の立壁状の円筒枠
２４ａ 凹凸ランス係合部である円筒枠側の凹部
２４ｂ 立壁状の円筒枠内に形成された位置決め係合部であるボス
２６ 湾曲ランプボディ
Ｕ 湾曲導光レンズを構成するライン状導光体ユニット
３１ ライン状導光体
３１ａ 光入射端部
３１ｂ 拡散反射ステップ
４０ ＬＥＤユニットアッシー
４１ プリント基板
４２ 光源であるＬＥＤ
４６ 弾性体であるホルダー
４８ 保護キャップ
４８ａ 凹凸ランス係合部であるキャップ側の凸部 DESCRIPTION OF SYMBOLS 10 Side mirror housing 11 Curved outer wall of side mirror housing 12 Opening part extended right and left 14 Side mirror main body 20 Side turn signal lamp S1 Lamp chamber 21 Curved outer lens 22 Design surface of outer lens 23 Provided on base end side of outer lens Opening portion S2 Light source accommodation chamber 24 Vertical wall-shaped cylindrical frame 24a for forming the light source accommodation chamber 24a Recessed portion 24b on the cylindrical frame which is the concave / convex lance engagement portion Boss which is the positioning engagement portion formed in the cylindrical wall frame 26 Curved lamp body U Line-shaped light guide unit constituting curved light guide lens 31 Line-shaped light guide 31a Light incident end 31b Diffuse reflection step 40 LED unit assembly 41 Printed circuit board 42 LED as light source
46 A holder which is an elastic body 48 A protective cap 48a A convex portion on the cap side which is an uneven lance engaging portion

Claims (4)

サイドミラーハウジングの湾曲外側壁の左右に延びる開口部にその意匠面が係合するように構成された湾曲アウターレンズと、前記アウターレンズの背後に組み付け一体化されて、該アウターレンズと協働して灯室を画成する湾曲ランプボディと、前記灯室内に配設されて前記アウターレンズに沿って左右方向に延在し、その基端部側に光入射端部が設けられた合成樹脂製の湾曲導光レンズと、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、
前記湾曲導光レンズは、前記アウターレンズ内面に接近するように上下に並設した複数本の横断面略円形のライン状導光体で構成されるとともに、それぞれのライン状導光体の裏側全域に、導光を該導光体の前面側に反射する反射ステップまたは点刻が設けられたことを特徴とするサイドターンシグナルランプ。 A curved outer lens configured so that its design surface engages with an opening extending to the left and right of the curved outer wall of the side mirror housing, and is assembled and integrated behind the outer lens to cooperate with the outer lens. A curved lamp body that defines a lamp chamber, and a synthetic resin that is disposed in the lamp chamber and extends in the left-right direction along the outer lens, and has a light incident end on the base end side. A side turn signal lamp comprising: a curved light guide lens; and an LED that is a light source disposed in the vicinity of a light incident end of the light guide lens.
The curved light guide lens is composed of a plurality of line-shaped light guides having a substantially circular cross section arranged side by side so as to approach the inner surface of the outer lens, and the entire back side of each line-shaped light guide. The side turn signal lamp is characterized in that a reflection step or a dot is formed to reflect the light guide to the front side of the light guide. 前記ランプボディは、前記アウターレンズに略倣った湾曲形状に構成されるとともに、前記ライン状導光体と前記ランプボディとの間に所定の隙間が形成さ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。   2. The lamp body according to claim 1, wherein the lamp body has a curved shape substantially following the outer lens, and a predetermined gap is formed between the line-shaped light guide and the lamp body. Side turn signal lamp as described. 前記複数本のライン状導光体は、基端部側および先端部側をそれぞれ連結一体化したユニットとして構成されており、一方、前記アウターレンズの基端部側には、先端部側から挿通した前記ライン状導光体ユニットの基端部側が係合できる開口部および該開口部を取り囲む光源収容室形成用の立壁状の枠が一体的に形成されるとともに、該枠に、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取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 plurality of line-shaped light guides are configured as a unit in which the base end side and the tip end side are connected and integrated, respectively, while the base end side of the outer lens is inserted from the tip end side. An opening that can be engaged with the base end side of the line-shaped light guide unit and a vertical wall-shaped frame for forming a light source housing chamber that surrounds the opening are integrally formed, and the LED is mounted on the frame. The side turn signal lamp according to claim 1 or 2, wherein an LED unit assembly including a mounted printed board is attached. 前記ＬＥＤユニットアッシーは、前面側にＬＥＤが搭載され、前記立壁状の枠内の位置決め係合部に係合可能なプリント基板と、前記プリント基板の背面側に組み付けられた弾性ホルダーと、前記立壁状の枠に凹凸ランス係合することで、前記立壁状の枠内に位置決めされた前記プリント基板を前記弾性ホルダーを介して固定保持する保護キャップとを備え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。   The LED unit assembly includes an LED mounted on a front surface side, a printed circuit board that can be engaged with a positioning engagement portion in the standing wall frame, an elastic holder assembled on the back surface side of the printed circuit board, and the standing wall A protective cap for fixing and holding the printed circuit board positioned in the standing wall-shaped frame via the elastic holder by engaging a concavo-convex lance with a frame-shaped frame. Side turn signal lamp as described.
JP2006070295A 2006-03-15 2006-03-15 Side turn signal lamp Expired - Fee Related JP4640994B2 (en)

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