JP2004256035A - Bright automobile interior material - Google Patents

Bright automobile interior material Download PDF

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Publication number
JP2004256035A
JP2004256035A JP2003050224A JP2003050224A JP2004256035A JP 2004256035 A JP2004256035 A JP 2004256035A JP 2003050224 A JP2003050224 A JP 2003050224A JP 2003050224 A JP2003050224 A JP 2003050224A JP 2004256035 A JP2004256035 A JP 2004256035A
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Japan
Prior art keywords
light
guide plate
scattering
light guide
interior material
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JP2003050224A
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Japanese (ja)
Inventor
Yuusuke Otaki
裕介 尾瀧
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Hayashi Telempu Corp
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Hayashi Telempu Corp
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Priority to JP2003050224A priority Critical patent/JP2004256035A/en
Publication of JP2004256035A publication Critical patent/JP2004256035A/en
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  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To produce various designs with high brightness by using a light scattering light-leading plate functioning as an illumination when an occupant of the automobile views it from a cabin rather than illuminating an object and having function for gradually diffusing an incident light from a light source by fine particles dispersed at the inside. <P>SOLUTION: The bright automobile interior material is an automobile interior material (10) having at least a part of a design surface facing the cabin of the automobile formed into a brightening property and is provided with the light scattering light-leading plate (21) arranged in approximately parallel to the design surface (10a); the light source 25 provided at one end surface of the light scattering light-leading plate; and a reflection material (23) arranged at a back surface of the light-leading plate. In lighting a light source light emitting diode (25), the light from the light source incident on the inside of the light scattering light-leading plate (21) is scattered by the fine particles dispersed in the light scattering light-leading plate and propagates while gradually emitting to a surface (21a) of the light scattering light-leading plate. A specific design effect to show a pattern (23a) formed on the reflection material in a floated up manner is obtained. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明が属する技術分野】
本発明は、自動車室内に面する意匠面の少なくとも一部を光輝性に形成した自動車室内内装材に関する。
【0002】
【従来の技術】
従来より、自動車の室内(乗員室、荷室など)に各種の内装材を付設して室内を装飾している。これら内装材は樹脂やファブリックを主体としてなるもので、たとえば、天井部にはルーフライニング内装材が付設され、ドアにはドアトリム内装材が付設される。内装材は車体の鋼板パネルを覆うことで各種の意匠を演出し、触感をソフトにし、また衝撃吸収材、防音材等としての作用等も果たすものである。
これら自動車内装材の意匠性についてさらに進んで、夜間の利用を考慮した各種の照明装置を備える例がある。
【0003】
代表的な例は特公平8−13619号公報(特願平2−253448号)の「車室内照明装置」に開示されている。また、特開平7−130208公報(特願平5−293937号)に、出願人は光散乱導光体を用いた「自動車用光源装置」によって、自動車の室内を照明する構造を開示している。これらは主として自動車の室内を部分的に光照射して、乗員の利便性に寄与しようとする照明装置である。
【0004】
これら照明装置を備えた内装材として、対象物の照射よりも乗員が内装材を眺めたときの意匠(イルミネーション)を演出することを主目的とする内装材も提案されている。
この種のイルミネーションタイプの内装材は、たとえば、特開2001−113945号公報(特願平11−296956号)に、「ボディパネルの内側に設けられる車両用ライニングであって、少なくとも一部が透明なライニング本体を備えると共に、このライニング本体と前記ボディパネルとの間に発光体を備えることを特徴とする車両用ライニング」が開示されており、内装材自体を「斬新で、デザイン的に優れた車両用ライニング」とすることを主目的としているものである。
【0005】
【特許文献1】
特公平8−13619号公報(特願平2−253448号)
【特許文献2】
特開平7−130208公報(特願平5−293937号)
【特許文献3】
特開2001−113945号公報(特願平11−296956号)
【0006】
【発明が解決しようとする課題】
従来例(特願平11−296956号)は、透明なライニングの裏側に発光体を配しており、透明なライニング自体は単に光の透過材に過ぎないものであり、光の透過度を調整する以上に新たな意匠を設けることができない。
また、透明なライニングを透かして発光体が透けて見えることがないようにライニングは低い光透過度にする必要がある。
上記の理由によって、従来例の構成では意匠面は暗く、演出される意匠も単調化することが避けられない。本発明はこの課題に鑑みなされたものである。
【0007】
【課題を解決するための手段】
課題を解決する本発明の手段は、自動車の室内に面する意匠面の少なくとも一部を光輝性に形成した自動車内装材であって、前記意匠面に略平行して配置される光散乱性導光板と、前記光散乱性導光板の一端面に設けられた光源と、前記導光板の裏面に配置される反射材とを備えることを特徴とする光輝性自動車内装材による。
【0008】
本発明の光輝性内装材によれば、内部に分散する微粒子によって光源からの入射光を徐々に拡散させる作用を有する光散乱性の導光板を用いることにより、光源を導光板の端面側におくことが可能であり、光散乱性導光板の裏面に配した反射材で入射光を反射させ、光散乱性導光板、出光量調整材、反射材、光源の組み合わせによって輝度が高く、多様な意匠を演出することが可能である。
【0009】
【発明の実施の形態】
以下、図面をもとに本発明の好適の実施の形態を説明する。
本発明による光輝性自動車内装材として、図4に示すドアトリム内装材のオーナメントに光輝性の意匠面を形成する例によって説明する。
【0010】
図1は、図4に示すドアトリム内装材(10)のオーナメント(20)に本発明の構造を適用する本発明の第1実施例を示す分解斜視図である。
図1の第1実施例でオーナメント(20)は、略矩形の光散乱性導光板(21)と、光散乱性導光板の裏面(21b)に反射材としての同形の孔空き金属板(23)と、光散乱性導光板の表面(21a)に出光量調整材としての同形のハーフミラーフィルム(24)を積層してなり、光散乱性導光板の端面(21c)には光源としての発光ダイオード(25)を配置してなるものである。
【0011】
本発明に適する光散乱性導光板(21)は、母材としてポリメチルメタクリレート樹脂を用い、粒子径が0.1〜100μmの透明微粒子(シリコーン樹脂粒子等)を、0.01〜1.0重量%程度均一に分散させた材料を、厚さ数mm〜数十mmに成形して用いることができる。この材料の成形物は、入射光(波長400〜800nm)に対して光散乱特性を発現する。
反射材としての孔空き金属板(23)は、アルミ等の光反射率が高い金属板であり、径1〜20mmほどの任意の開孔パターン(23a)が千鳥状に形成され、開孔部で光の反射性を落としてなる。
出光量調整材としてのハーフミラーフィルム(24)は、光散乱性導光板(21)から意匠面方向への透過率が約10〜90%の半透明フィルムであり、たとえば東レ株式会社製、商品名ルミラーフィルムが適する。
光源(25)としては、発光ダイオード等の点光源もしくは冷陰極管等の線光源が光散乱性導光板内での出射光の散乱性にすぐれており好ましい。発光ダイオードは光散乱性導光板(21)の端面(21c)に配して、光散乱性導光板に平行する方向に光入射する。
【0012】
この第1実施例で発現する意匠の特徴としては、発光ダイオード(25)の点灯時、光散乱性導光板(21)内に入射した光源からの光は光散乱性導光板(21)内に分散された微粒子で散乱して、次第に光散乱性導光板(21)の表面(21a)や裏面(21b)に出射しながら伝播していく。この際、光散乱性導光板の裏面(21b)方向に出射した光は孔空き金属板(23)に反射して光散乱性導光板内に再入射するが、孔空き金属板(23)の開口パターン(23a)では光の反射率が落としてあるため、意匠面方向から眺めた場合、孔空き金属板(23)の開口パターン(23a)が明暗模様に浮き上がって見える特異な意匠効果が得られる。
発光ダイオード(25)は、複数の発光ダイオードを組み合わせ配置しその点灯数によって明るさを加減したり、異なる発色の発光ダイオードによって色を使いわけることもできる。
ハーフミラーフィルム(24)によって光散乱導光板表面の輝度を落とす方向に調整することができ、光源の消灯時に光散乱導光板の背後に孔空き金属板があるのがはっきりとは見えない状態に隠すこともできる。
【0013】
図2は、図4に示すドアトリム内装材のオーナメントに適用する本発明の第2実施例を示す分解斜視図である。
図2の第2実施例オーナメント(30)は、2種の異なる光散乱性導光板(31)、(32)を積層配置し、光散乱性導光板(31)の裏面(31b)には反射材としてのミラーフィルム(33)を配し、それぞれの光散乱性導光板の端面(31c)、(32c)には光源としての発光ダイオード(35)、(36)を配置してなるものである。
【0014】
この実施例で積層配置される光散乱性導光板(31)、(32)はそれぞれ第1実施例の光散乱導光板(21)を構成するのと同種の材料をもって構成し、一方の光散乱性導光板(32)は平坦な板状に、他方の導光板(31)は平面方向で厚さが異なる線状凸部(31d)をもって形成している。光散乱性導光体は厚さ方向で見て、光を散乱させる粒子が多いほど輝度が高くなる特性があるため、線状凸部(31d)では一般面に対して輝度が高められる傾向が発現する。
反射材としてのミラーフィルム(33)は、第1実施例で出光量調整材として用いた東レ株式会社製、商品名ルミラーフィルムをこの実施例では反射材として用いることが可能で、光散乱性導光板の背後にある自動車の構造物を完全に隠すことができる。
【0015】
第2実施例で発現する意匠の特徴としては、光散乱性導光板(31)に線状凸部(31d)を設けて明暗差をつけることや、2層の光散乱導光板(31)、(32)のそれぞれの光源(35)、(36)の色をそれぞれ変えることにより、その組み合わせ効果で第1実施例よりさらに多様な意匠を演出することができる。
【0016】
図3は、図4に示すドアトリム内装材のオーナメントに適用する本発明の第3実施例を示す分解斜視図である。
図3の第3実施例オーナメント(40)は、光散乱性導光板(41)の表面(41a)に出光量調整材としての模様付き透明樹脂板(44)を積層配置し、光散乱性導光板(41)の裏面(41b)には反射材としてのミラーフィルム(43)を配し、光散乱性導光板の端面および模様付き透明樹脂板の端面(41c)、(44c)にはそれぞれ光源(45)、(46)を配置してなるものである。
【0017】
この実施例における光散乱性導光板としては、実施例1の光散乱性導光板(21)と同種のものを用いることが適する。光源(45)、(46)としては発光ダイオードを用い、特には、複数の発光ダイオードを組み合わせ配置しその点灯数によって明るさを加減したり、異なる発色の発光ダイオードによって色を使いわけたりすることができる。
出光量調整材としての模様付き透明樹脂板(44)は、透明なアクリル樹脂板に開口模様(44d)を形成して、開口部と一般部で出光量を調整するものが適し、反射材としてのミラーフィルム(43)は、第2実施例と同種のものを用いることが適する。
【0018】
この実施例では、光散乱性導光板の端面(41c)から光散乱性導光板に入射した光源(45)の入射光は、実施例1や実施例2と同様に、光散乱の作用により光散乱性導光板の表面(41a)に出射してアクリル製の透明樹脂板(44)に形成された開口模様(44d)に映り込む一方、透明樹脂板(44)は光を散乱させる機能がほとんどないため、端面(44c)から入射した光源(46)の入射光は、透明樹脂板の表面(44a)からはほとんど出射せず、透明樹脂板に形成された開口模様(44d)に達した成分のみが、その端面から出射するので、開口模様(44d)の端面が縁取られて円く光り、かつこの光は光散乱性導光板(41)に映し込まれ、幻想的な意匠が得られる。
【0019】
図5は、上記実施例オーナメントを自動車ドアトリム内装材(10)に取着するに好ましい構造であり、図4のA−A線での相当オーナメント(50)の取付状態断面図に示す。
この実施例でドアトリム内装材(10)は、それぞれ所要形状に成形されたアッパーボード(11)とロアボード(12)をオーナメント(20)の背後に重ね合わせて結合、一体化しているものである。特にオーナメント取着位置は、凹溝(13)に形成してオーナメント(20)の表面がドアトリム内装材の意匠面(10a)と平行、面一になるのが好ましい。また不図示の光源も同じ凹溝内に配置される。
この実施例で、オーナメント(50)は、自動車の室内に面する側から順に第1の光散乱性導光板(51)と、第2の光散乱性導光板(52)と、ミラーフィルム(53)を積層してなり、取着螺子(54)によって、ドアトリム内装材(10)の凹溝(13)に取り付けられている。
特には、第1の光散乱性導光板(51)は垂下脚(51a)を有し、この垂下脚が第2の光散乱性導光板(52)、ミラーフィルム(53)、アッパーボード(11)、ロアボード(12)にそれぞれ形成された開口を経てドアトリム内装材(10)の裏面に至り、取着螺子(54)と螺着されることにより、ドアトリム内装材(10)との間に第2の光散乱性導光板(52)、およびミラーフィルム(53)を挟み込み、取着されることが好ましい。
【0020】
図6は、本発明の第4実施例であり、ヘッドライナー内装材(100)のセンター開口部(100a)に長尺の光輝性オーナメント(110)を嵌め合わせる構造を適用するものである。
図7は、図6の光輝性オーナメント(110)の分解斜視図であり、自動車の室内に面する側から順に、出光量調整材としての透明樹脂板(111)、光散乱性導光板(112)、反射材(113)を積層して構成されるものであり、透明樹脂板にはこのオーナメントを眺めた場合のアクセントとなる異なる種類の開口模様(111a)、(111b)が形成されている。
また図8は、図6のB−B線断面図に相当し、この実施例における光輝性オーナメント(110)のヘッドライナー内装材(100)への好ましい取着態様を示すものである。図8において、光輝性オーナメント(110)は、ヘッドライナー内装材の開口部(100a)に嵌め合わされ、透明樹脂板(111)、光散乱性導光板(112)、反射材(113)の各構成要素を通す固定用螺子(122)によって、天井パネル(120)に溶接された金属ステイ(121)に螺着される取着構造をとっている。
この実施例において透明樹脂板、光散乱性導光板、光源は、それぞれ実施例1〜3と同種のものを用いることができる。特に、この実施例のような長尺で曲面的なオーナメントでは、オーナメントにちょうど相当する形状の光源を背後に設定することが困難であり、本発明の構造が特に適する例である。
【0021】
図9(a)〜(d)には、本発明の光散乱性導光板、出光量調整材としての透明樹脂板に対する光源の組み合わせ様式の各種実施例を示す。
(a)の例では、透明樹脂板(131)の上方に光散乱性導光板(132)を積層してなり、それぞれの端縁にざぐり状の開口端面(135)、(135’)を形成して、異なる光源(133)、(133’)を透明樹脂板および光散乱性導光板に容れ込んでいる。この場合、透明樹脂板を透かして光散乱性導光板の意匠が見えることから、光源(133)、(133’)の両方ないしどちらか一方を点灯することにより、それぞれ異なる意匠を演出できる。
(b)の例では、透明樹脂板(141)の上方に光散乱性導光板(142)を積層してなり、光散乱性導光板の上面にざぐり状の開口端面(145)を形成して、光源(143)を容れ込んでおり、さらに光源の下方には、光反射材(144)を配している。この場合、光源(143)からの入射は、透明樹脂板方向は光反射材(144)に反射されて直接入射することが少なく、もっぱら光散乱性導光板内に送られた光が散乱したものが透明樹脂板を透かして見える意匠となる。
(c)の例では、透明樹脂板(151)の上方に光散乱性導光板(152)を積層してなり、光散乱性導光板の上面から透明樹脂板まで達するざぐり状の開口端面(155)を形成して、光源(153)を容れ込んでおり、さらに光源が光散乱性導光板に面する開口の周面には、光反射材(154)を配している。この場合、光源(153)からの入射は、光散乱性導光板方向は光反射材(154)に反射されて直接入射することが少なく、もっぱら透明樹脂板内に送られた光を透かして光散乱導光板が見える意匠となる。
(d)の例では、透明樹脂板(161)の上方に光散乱性導光板(162)を積層してなり、光散乱性導光板の上面から透明樹脂板まで貫通する開口端面(165)を形成して、光源(163)を容れている。また、光源が光散乱性導光板および透明樹脂板に面する開口の周面には、可動性の光反射材(164)を配している。この場合、可動性の光反射材(164)が上昇した状態では、(c)の実施例に近い意匠になり、図のように可動性の光反射材(164)が最も下降した状態では通常の室内照射タイプの照明装置として機能させることができる。
【0022】
【発明の効果】
本発明の光輝性内装材は、対象物を照明するよりも、自動車の乗員が室内から眺めた際のイルミネーションとして作用するものとできる。
内部に分散する微粒子によって光源からの入射光を徐々に拡散させる作用を有する光散乱性の導光板を用いることにより、光源を導光板の端面側におくことが可能であり、光散乱性導光板の裏面に配した反射材で入射光を反射させ、光散乱性導光板、出光量調整材、反射材、光源の組み合わせによって輝度が高く、多様な意匠を演出することが可能である。
従来技術では、ライニング本体とボディパネルとの間に発光体(極細蛍光灯など)を配しており、発光体を入れる容積の分だけライニングの厚さが厚くなって意匠面が自動車の室内側にせり出してくるため適用位置が限定され、また発光体の発熱を逃がしにくい構造となることが課題になるが、本発明では、光源をライニングの裏面に配することが無いのでこの課題も解決している。
【図面の簡単な説明】
【図1】本発明の光輝性自動車内装材第1実施例としてのドアトリム内装材オーナメントの分解斜視図を示す。
【図2】同じく第2実施例の分解斜視図を示す。
【図3】同じく第3実施例の分解斜視図を示す。
【図4】第1実施例〜第3実施例が適用されるドアトリム内装材を示す。
【図5】図4のA−A線断面図(第3実施例相当)を示す。
【図6】本発明の光輝性自動車内装材第4実施例としてのヘッドライナー内装材への適用状態を示す外観図。
【図7】第4実施例の分解斜視図を示す。
【図8】第4実施例の取着状態を図6のB−B線断面図に示す。
【図9】光源と光散乱性導光板の組み合わせに関する各種の実施形態を示す。
【符号の説明】
10 自動車室内内装材
20、30、40、50 オーナメント
21、31、32、41、51、52 光散乱性導光板
23、33、43、53 反射材
24、44 出光量調整材
25、35、36、45、46 光源
[0001]
[Technical field to which the invention belongs]
The present invention relates to a vehicle interior material in which at least a part of a design surface facing the vehicle interior is formed with a glitter.
[0002]
[Prior art]
Conventionally, various interior materials are attached to the interior of an automobile (passenger compartment, cargo compartment, etc.) to decorate the interior. These interior materials are mainly made of resin or fabric. For example, roofing interior materials are attached to the ceiling, and door trim interior materials are attached to the doors. The interior material covers various types of designs by covering the steel plate panel of the vehicle body, softens the tactile sensation, and also functions as an impact absorbing material, a soundproofing material, and the like.
There is an example in which various lighting devices that take the night use into consideration are provided in the design of these automobile interior materials.
[0003]
A typical example is disclosed in "In-vehicle interior lighting device" of Japanese Patent Publication No. 8-13619 (Japanese Patent Application No. 2-253448). Further, in Japanese Patent Application Laid-Open No. 7-130208 (Japanese Patent Application No. 5-293937), the applicant discloses a structure for illuminating the interior of an automobile with an “automobile light source device” using a light scattering light guide. . These are illuminating devices that mainly contribute to the convenience of passengers by partially irradiating the interior of an automobile.
[0004]
As an interior material provided with these lighting devices, an interior material whose main purpose is to produce a design (illumination) when an occupant looks at the interior material rather than irradiation of an object has been proposed.
This type of illumination type interior material is disclosed in, for example, Japanese Patent Application Laid-Open No. 2001-113945 (Japanese Patent Application No. 11-296156), “a vehicle lining provided inside a body panel, at least a part of which is transparent. A vehicle lining characterized by having a light-emitting body between the lining body and the body panel is disclosed, and the interior material itself is "innovative and excellent in design. The main purpose is to make it “vehicle lining”.
[0005]
[Patent Document 1]
Japanese Patent Publication No. 8-13619 (Japanese Patent Application No. 2-253448)
[Patent Document 2]
JP-A-7-130208 (Japanese Patent Application No. 5-293937)
[Patent Document 3]
JP 2001-113945 A (Japanese Patent Application No. 11-296156)
[0006]
[Problems to be solved by the invention]
In the conventional example (Japanese Patent Application No. 11-296656), a light emitter is disposed on the back side of a transparent lining, and the transparent lining itself is merely a light transmitting material, and the light transmittance is adjusted. No new design can be provided.
Further, the lining needs to have a low light transmittance so that the illuminant is not seen through the transparent lining.
For the above reasons, the design surface is dark in the configuration of the conventional example, and it is inevitable that the produced design is monotonous. The present invention has been made in view of this problem.
[0007]
[Means for Solving the Problems]
The means of the present invention for solving the problem is an automobile interior material in which at least a part of a design surface facing the interior of an automobile is formed with brilliancy, and is a light scattering guide disposed substantially parallel to the design surface. A glittering automobile interior material comprising: a light plate; a light source provided on one end surface of the light-scattering light guide plate; and a reflector disposed on the back surface of the light guide plate.
[0008]
According to the glittering interior material of the present invention, the light source is placed on the end face side of the light guide plate by using the light-scattering light guide plate having a function of gradually diffusing incident light from the light source by the fine particles dispersed inside. It is possible to reflect the incident light with the reflective material arranged on the back side of the light-scattering light guide plate, and the brightness is high by combining the light-scattering light guide plate, the light output adjustment material, the reflective material, and the light source. It is possible to produce.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
As a glittering automobile interior material according to the present invention, an example of forming a glittering design surface on the ornament of the door trim interior material shown in FIG. 4 will be described.
[0010]
FIG. 1 is an exploded perspective view showing a first embodiment of the present invention in which the structure of the present invention is applied to the ornament (20) of the door trim interior material (10) shown in FIG.
In the first embodiment of FIG. 1, the ornament (20) includes a substantially rectangular light-scattering light guide plate (21), and a perforated metal plate (23) having the same shape as a reflector on the back surface (21b) of the light-scattering light guide plate. ) And a half-mirror film (24) having the same shape as the light output quantity adjusting material is laminated on the surface (21a) of the light-scattering light guide plate. A diode (25) is arranged.
[0011]
The light-scattering light guide plate (21) suitable for the present invention uses a polymethyl methacrylate resin as a base material, and transparent fine particles (silicone resin particles, etc.) having a particle diameter of 0.1 to 100 μm in 0.01 to 1.0. A material that is uniformly dispersed by weight percent can be used after being molded to a thickness of several mm to several tens of mm. The molded product of this material exhibits light scattering characteristics with respect to incident light (wavelength 400 to 800 nm).
The perforated metal plate (23) as a reflecting material is a metal plate having a high light reflectance such as aluminum, and an arbitrary hole pattern (23a) having a diameter of about 1 to 20 mm is formed in a staggered pattern. This reduces the light reflectivity.
The half mirror film (24) as a light output adjusting material is a translucent film having a transmittance of about 10 to 90% from the light-scattering light guide plate (21) to the design surface direction. Named mirror film is suitable.
As the light source (25), a point light source such as a light emitting diode or a linear light source such as a cold cathode tube is preferable because it has excellent scattering properties of the emitted light in the light scattering light guide plate. The light emitting diode is arranged on the end face (21c) of the light-scattering light guide plate (21) so that light is incident in a direction parallel to the light-scattering light guide plate.
[0012]
As a feature of the design expressed in the first embodiment, when the light emitting diode (25) is turned on, the light from the light source that has entered the light scattering light guide plate (21) enters the light scattering light guide plate (21). The light is scattered by the dispersed fine particles and gradually propagates while being emitted to the front surface (21a) and the back surface (21b) of the light-scattering light guide plate (21). At this time, the light emitted in the direction of the back surface (21b) of the light-scattering light guide plate is reflected by the perforated metal plate (23) and reenters the light-scattering light guide plate. Since the light reflectance is reduced in the opening pattern (23a), a unique design effect is obtained when the opening pattern (23a) of the perforated metal plate (23) appears to be bright and dark when viewed from the direction of the design surface. It is done.
The light-emitting diode (25) can be arranged by combining a plurality of light-emitting diodes, and the brightness can be adjusted depending on the number of the light-emitting diodes.
The half mirror film (24) can be adjusted to reduce the brightness of the surface of the light scattering light guide plate, and when the light source is turned off, it is not clearly visible that there is a perforated metal plate behind the light scattering light guide plate. It can also be hidden.
[0013]
2 is an exploded perspective view showing a second embodiment of the present invention applied to the ornament of the door trim interior material shown in FIG.
In the second embodiment ornament (30) of FIG. 2, two different types of light-scattering light guide plates (31) and (32) are stacked and reflected on the back surface (31b) of the light-scattering light guide plate (31). A mirror film (33) as a material is arranged, and light emitting diodes (35) and (36) as light sources are arranged on the end faces (31c) and (32c) of the respective light-scattering light guide plates. .
[0014]
The light-scattering light guide plates (31) and (32) stacked in this embodiment are made of the same material as that of the light-scattering light guide plate (21) of the first embodiment, and one of the light scattering plates. The light guide plate (32) is formed in a flat plate shape, and the other light guide plate (31) is formed with linear convex portions (31d) having different thicknesses in the plane direction. Since the light-scattering light guide has a characteristic that the luminance increases as the number of particles that scatter light increases in the thickness direction, the linear convex portion (31d) tends to have higher luminance than the general surface. To express.
The mirror film (33) as the reflecting material can be a Toray Co., Ltd. trade name used as the output light amount adjusting material in the first embodiment, and can be used as a reflecting material in this embodiment. The vehicle structure behind the light plate can be completely hidden.
[0015]
As a feature of the design expressed in the second embodiment, the light scattering light guide plate (31) is provided with a linear convex portion (31d) to make a light / dark difference, or the two layers of light scattering light guide plate (31), By changing the colors of the respective light sources (35) and (36) of (32), it is possible to produce more various designs than in the first embodiment due to the combination effect.
[0016]
3 is an exploded perspective view showing a third embodiment of the present invention applied to the ornament of the door trim interior material shown in FIG.
The ornament (40) of the third embodiment shown in FIG. 3 has a transparent resin plate (44) with a pattern as a light output quantity adjusting material laminated on the surface (41a) of the light scattering light guide plate (41), and the light scattering guide. A mirror film (43) as a reflector is disposed on the back surface (41b) of the light plate (41), and light sources are provided on the end surface of the light-scattering light guide plate and the end surfaces (41c) and (44c) of the patterned transparent resin plate, respectively. (45) and (46) are arranged.
[0017]
As the light-scattering light guide plate in this example, it is suitable to use the same type as the light-scattering light guide plate (21) of Example 1. Light emitting diodes are used as the light sources (45) and (46), and in particular, a plurality of light emitting diodes are arranged in combination, and brightness is adjusted depending on the number of lighting, or colors are used differently by light emitting diodes of different colors. Can do.
A transparent resin plate (44) with a pattern as an output light amount adjusting material is suitable to form an opening pattern (44d) on a transparent acrylic resin plate and adjust the output light amount at the opening and the general portion. It is suitable to use the same kind of mirror film (43) as in the second embodiment.
[0018]
In this embodiment, the incident light of the light source (45) incident on the light-scattering light guide plate from the end surface (41c) of the light-scattering light guide plate is light by the action of light scattering, as in the first and second embodiments. While being emitted to the surface (41a) of the scattering light guide plate and reflected in the opening pattern (44d) formed on the acrylic transparent resin plate (44), the transparent resin plate (44) has almost the function of scattering light. Therefore, the incident light of the light source (46) incident from the end face (44c) hardly radiates from the surface (44a) of the transparent resin plate and reaches the opening pattern (44d) formed on the transparent resin plate. Since only the light exits from the end face, the end face of the opening pattern (44d) is edged and shines circularly, and this light is reflected on the light-scattering light guide plate (41) to obtain a fantastic design.
[0019]
FIG. 5 shows a preferred structure for attaching the above-described embodiment ornament to the automobile door trim interior material (10), and is shown in a sectional view of the equivalent ornament (50) taken along line AA in FIG.
In this embodiment, the door trim interior material (10) has an upper board (11) and a lower board (12), each of which is molded into a required shape, overlapped and joined together behind the ornament (20). In particular, the ornament attachment position is preferably formed in the concave groove (13) so that the surface of the ornament (20) is parallel and flush with the design surface (10a) of the door trim interior material. A light source (not shown) is also disposed in the same groove.
In this embodiment, the ornament (50) includes a first light-scattering light guide plate (51), a second light-scattering light guide plate (52), and a mirror film (53) from the side facing the interior of the automobile. ) And are attached to the concave groove (13) of the door trim interior material (10) by an attachment screw (54).
In particular, the first light-scattering light guide plate (51) has a hanging leg (51a), and this hanging leg is the second light-scattering light guide plate (52), the mirror film (53), and the upper board (11). ), Reaches the back surface of the door trim interior material (10) through the respective openings formed in the lower board (12), and is screwed to the attachment screw (54), so that the door trim interior material (10) is It is preferable that the two light-scattering light guide plates (52) and the mirror film (53) are sandwiched and attached.
[0020]
FIG. 6 shows a fourth embodiment of the present invention, in which a structure in which a long glitter ornament (110) is fitted to the center opening (100a) of the headliner interior material (100) is applied.
FIG. 7 is an exploded perspective view of the glittering ornament (110) of FIG. 6, in order from the side facing the interior of the automobile, a transparent resin plate (111) as a light output adjustment material, and a light scattering light guide plate (112). ) And a reflective material (113), and different types of opening patterns (111a) and (111b) serving as an accent when the ornament is viewed are formed on the transparent resin plate. .
FIG. 8 corresponds to a cross-sectional view taken along the line BB of FIG. 6 and shows a preferable manner of attaching the glitter ornament (110) to the head liner interior material (100) in this embodiment. In FIG. 8, the glittering ornament (110) is fitted into the opening (100a) of the headliner interior material, and each configuration of the transparent resin plate (111), the light-scattering light guide plate (112), and the reflecting material (113). An attachment structure is adopted in which a fixing screw (122) for passing the element is screwed to a metal stay (121) welded to the ceiling panel (120).
In this embodiment, the transparent resin plate, the light-scattering light guide plate, and the light source can be the same as those in Embodiments 1 to 3, respectively. Particularly, in the case of a long and curved ornament as in this embodiment, it is difficult to set a light source having a shape corresponding to the ornament in the back, and the structure of the present invention is particularly suitable.
[0021]
9A to 9D show various examples of combinations of light sources with respect to the light-scattering light guide plate of the present invention and a transparent resin plate as a light output adjustment material.
In the example of (a), the light-scattering light guide plate (132) is laminated above the transparent resin plate (131), and the counterbore-shaped open end faces (135) and (135 ′) are formed on the respective edges. Thus, different light sources (133) and (133 ′) are contained in the transparent resin plate and the light-scattering light guide plate. In this case, since the design of the light-scattering light guide plate can be seen through the transparent resin plate, different designs can be produced by lighting both or one of the light sources (133) and (133 ′).
In the example of (b), a light-scattering light guide plate (142) is laminated above the transparent resin plate (141), and a counterbore-shaped opening end face (145) is formed on the upper surface of the light-scattering light guide plate. The light source (143) is contained, and a light reflecting material (144) is disposed below the light source. In this case, the incident light from the light source (143) is reflected directly by the light reflecting material (144) in the direction of the transparent resin plate, and the light sent into the light-scattering light guide plate is scattered. Becomes a design that can be seen through the transparent resin plate.
In the example of (c), a light-scattering light guide plate (152) is laminated above the transparent resin plate (151), and a counterbore opening end surface (155) reaching from the top surface of the light-scattering light guide plate to the transparent resin plate. ), The light source (153) is contained, and a light reflecting material (154) is disposed on the peripheral surface of the opening where the light source faces the light-scattering light guide plate. In this case, incident light from the light source (153) is less likely to be directly incident upon being reflected by the light reflecting material (154) in the direction of the light-scattering light guide plate, and is exclusively transmitted through the light sent into the transparent resin plate. The design allows the scattering light guide plate to be seen.
In the example of (d), a light scattering light guide plate (162) is laminated above the transparent resin plate (161), and an opening end face (165) penetrating from the upper surface of the light scattering light guide plate to the transparent resin plate is formed. Forming and containing a light source (163). A movable light reflecting material (164) is disposed on the peripheral surface of the opening where the light source faces the light-scattering light guide plate and the transparent resin plate. In this case, when the movable light reflecting material (164) is raised, the design is similar to the embodiment of (c), and when the movable light reflecting material (164) is most lowered as shown in the figure, it is normal. It can function as an indoor illumination type lighting device.
[0022]
【The invention's effect】
The glittering interior material of the present invention can act as an illumination when an automobile occupant looks from the room, rather than illuminating an object.
By using a light-scattering light guide plate that has the effect of gradually diffusing incident light from the light source by the fine particles dispersed inside, the light source can be placed on the end face side of the light guide plate. Incident light is reflected by a reflective material disposed on the back surface of the light source, and a combination of a light-scattering light guide plate, a light output adjustment material, a reflective material, and a light source provides high brightness and can produce various designs.
In the conventional technology, a light emitter (extra-fine fluorescent lamp, etc.) is arranged between the lining body and the body panel. The thickness of the lining is increased by the volume of the light emitter, and the design surface is on the interior side of the car. However, in the present invention, since the light source is not disposed on the back surface of the lining, this problem is also solved. ing.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a door trim interior material ornament as a first embodiment of a glittering automobile interior material according to the present invention.
FIG. 2 is an exploded perspective view of the second embodiment.
FIG. 3 is an exploded perspective view of the third embodiment.
FIG. 4 shows a door trim interior material to which the first to third embodiments are applied.
FIG. 5 is a cross-sectional view taken along line AA in FIG. 4 (corresponding to a third embodiment).
FIG. 6 is an external view showing a state in which the present invention is applied to a headliner interior material as a fourth embodiment of the glittering automobile interior material.
FIG. 7 is an exploded perspective view of a fourth embodiment.
FIG. 8 is a sectional view taken along line BB of FIG.
FIG. 9 shows various embodiments relating to a combination of a light source and a light-scattering light guide plate.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Automotive interior interior material 20, 30, 40, 50 Ornaments 21, 31, 32, 41, 51, 52 Light scattering light guide plates 23, 33, 43, 53 Reflective materials 24, 44 Emitted light amount adjusting materials 25, 35, 36 45, 46 Light source

Claims (8)

自動車の室内に面する意匠面の少なくとも一部を光輝性に形成した自動車内装材であって、前記意匠面に略平行して配置される光散乱性導光板と、前記光散乱性導光板の一端面に設けられた光源と、前記導光板の裏面に配置される反射材とを備えることを特徴とする光輝性自動車内装材。An automotive interior material in which at least a part of a design surface facing the interior of an automobile is formed with brilliancy, a light-scattering light guide plate arranged substantially parallel to the design surface, and the light-scattering light guide plate A glittering automobile interior material comprising a light source provided on one end surface and a reflective material disposed on a back surface of the light guide plate. 前記反射材に非反射性の模様が形成されていることを特徴とする、請求項1に記載の光輝性自動車内装材。The glittering automotive interior material according to claim 1, wherein a non-reflective pattern is formed on the reflective material. 前記光散乱性導光板が、異なる光散乱性導光板で複層化されていることを特徴とする、請求項1に記載の光輝性自動車内装材。The glittering automobile interior material according to claim 1, wherein the light-scattering light guide plate is multilayered with different light-scattering light guide plates. 前記複数の異なる光散乱性導光板の端面ごとにそれぞれ独立した光源が設けられていることを特徴とする、請求項3に記載の光輝性自動車内装材。4. The glittering automobile interior material according to claim 3, wherein an independent light source is provided for each end face of the plurality of different light-scattering light guide plates. 前記光散乱性導光板に部分的な凸部ないし凹部が設けられ、この凸部ないし凹部で光散乱性導光板の光散乱率が一般部に対して高められ、ないし低められていることを特徴とする、請求項1に記載の光輝性自動車内装材。The light-scattering light guide plate is provided with partial convex portions or concave portions, and the light scattering rate of the light-scattering light guide plate is increased or lowered with respect to the general portion by the convex portions or concave portions. The glittering automotive interior material according to claim 1. 前記光散乱性導光板の室内に面する表面に出光量調整材を積層被覆していることを特徴とする、請求項1〜請求項5に記載の光輝性自動車内装材。6. The glittering automobile interior material according to claim 1, wherein a light emitting amount adjusting material is laminated and coated on a surface of the light scattering light guide plate facing the room. 前記出光量調整材が、表裏の相対する方向からの入射に対して光透過性/光反射性を有するハーフミラーフィルムであることを特徴とする、請求項6に記載の光輝性自動車内装材。The glittering automobile interior material according to claim 6, wherein the output light amount adjusting material is a half mirror film having light transmittance / light reflectivity with respect to incidence from opposite directions of the front and back sides. 前記出光量調整材が、模様付き透明樹脂板であることを特徴とする、請求項6に記載の光輝性自動車内装材。The glittering automobile interior material according to claim 6, wherein the output light amount adjusting material is a patterned transparent resin plate.
JP2003050224A 2003-02-27 2003-02-27 Bright automobile interior material Pending JP2004256035A (en)

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WO2005063527A1 (en) * 2003-12-26 2005-07-14 Hayashi Telempu Co., Ltd. Illumination module
JP2007047226A (en) * 2005-08-05 2007-02-22 Fujitsu Ten Ltd Electronic device and panel structure of same
WO2007028565A1 (en) * 2005-09-09 2007-03-15 Johnson Controls Interiors Gmbh & Co. Kg Trim component for the interior of a vehicle, use of the trim component and method for manufacturing it
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JP2007047226A (en) * 2005-08-05 2007-02-22 Fujitsu Ten Ltd Electronic device and panel structure of same
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JP2007099109A (en) * 2005-10-05 2007-04-19 Toyota Motor Corp Lighting device for vehicle
EP2049365A4 (en) * 2006-08-01 2014-08-20 3M Innovative Properties Co Illumination device
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JP2009001196A (en) * 2007-06-22 2009-01-08 Stanley Electric Co Ltd Interior light for automobile
JP2010070166A (en) * 2008-09-22 2010-04-02 Panasonic Electric Works Co Ltd Lighting system for vehicle
JP2010201976A (en) * 2009-02-27 2010-09-16 Honda Motor Co Ltd Vehicular interior structure
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JP2016110832A (en) * 2014-12-05 2016-06-20 スパークリングライツ株式会社 ornament
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JP2017210011A (en) * 2016-05-23 2017-11-30 トヨタ紡織株式会社 Vehicle interior material
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