JP3444754B2 - Instrument pointer lighting device - Google Patents
Instrument pointer lighting deviceInfo
- Publication number
- JP3444754B2 JP3444754B2 JP17708197A JP17708197A JP3444754B2 JP 3444754 B2 JP3444754 B2 JP 3444754B2 JP 17708197 A JP17708197 A JP 17708197A JP 17708197 A JP17708197 A JP 17708197A JP 3444754 B2 JP3444754 B2 JP 3444754B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- pointer
- guide plate
- light guide
- insertion hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Details Of Measuring Devices (AREA)
- Details Of Measuring And Other Instruments (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、例えばコンビネ
ーションメータ内に組み込まれる計器の指針照明装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instrument pointer illuminating device incorporated in, for example, a combination meter.
【０００２】[0002]
【従来の技術】コンビネーションメータは、一個のケー
ス内にスピードメータ，タコメータ，燃料計，及び水温
計等の各種の計器を組み込んで構成されている。2. Description of the Related Art A combination meter is constructed by incorporating various instruments such as a speedometer, a tachometer, a fuel gauge, and a water temperature gauge in a single case.
【０００３】図５及び図６は、このようなコンビネーシ
ョンメータ１００の隅部の一部を示している。このコン
ビネーションメータ１００には、その隅部に燃料計が配
設されている。この場合燃料計は文字板１０３の一部が
見返し１０２で被覆されると共に、指針１１０が見返し
１０２に近接して取り付けられている。FIG. 5 and FIG. 6 show a part of the corner of such a combination meter 100. In this combination meter 100, a fuel gauge is arranged at the corner. In this case, part of the dial 103 of the fuel gauge is covered with the dial 102, and the pointer 110 is attached in the vicinity of the dial 102.
【０００４】そしてこのときの指針１１０は、光源２０
０の光を文字板１０３の裏面側に取り付けた導光板１で
導光することにより照明される。The pointer 110 at this time is the light source 20.
The light of 0 is guided by the light guide plate 1 attached to the back side of the dial plate 103 to illuminate.
【０００５】すなわち導光板１には見返し１０２側に寄
った部位に指針軸挿通孔２が穿設されており、かつこの
指針軸挿通孔２の周辺部には反射面３が形成されてい
る。指針１１０はその指針軸１１３を指針軸挿通孔２に
挿通させて取り付けられており、導光板１で導かれた光
源２００の光Ｌ１は反射面３で反射して指針１１０に入
射すると共に指針１１０側の反射面１１１で反射して指
針１１０を照明する。That is, the light guide plate 1 is provided with a pointer shaft insertion hole 2 at a position near the dial 102, and a reflection surface 3 is formed in the peripheral portion of the pointer shaft insertion hole 2. The pointer 110 is attached by inserting the pointer shaft 113 into the pointer shaft insertion hole 2, and the light L1 of the light source 200 guided by the light guide plate 1 is reflected by the reflecting surface 3 and is incident on the pointer 110 and the pointer 110. The pointer 110 is illuminated by being reflected by the reflecting surface 111 on the side.
【０００６】[0006]
【発明が解決しようとする課題】しかしながらこのよう
な従来の指針照明装置においては、乱反射した光Ｌ２が
反射面３から出射し、この光Ｌ２が文字板１０３と指針
キャップ１１２との隙間Ｄを通って見返し１０２の側面
に達し、これにより見返し１０２の側面の内、指針キャ
ップ１１２に近接した部分Ａ（図５にハッチングで示
す）が他所と比較して高輝度に照明されて照明のアンバ
ランスが生じ、外観上の美観を損なう、という課題を有
している。However, in such a conventional pointer illuminating device, the light L2 diffused and reflected is emitted from the reflecting surface 3, and the light L2 passes through the gap D between the dial 103 and the pointer cap 112. To reach the side surface of the dial 102, so that a portion A (indicated by hatching in FIG. 5) of the side surface of the dial 102, which is close to the pointer cap 112, is illuminated with higher brightness than other places, and the imbalance of the illumination is caused. However, there is a problem in that it causes the appearance and impairs the aesthetic appearance.
【０００７】そこで、この発明は、指針を見返しに近接
させて設けたにも拘らず見返しの部分的な高輝度化がさ
けられ、以て外観上の美観向上をもたらす計器の指針照
明装置を提供することを目的としている。Therefore, the present invention provides a pointer illuminating device for a meter, which is capable of avoiding a partial increase in the brightness of the dial even though it is provided close to the dial, thereby improving the appearance. The purpose is to do.
【０００８】[0008]
【課題を解決するための手段】前記した目的を達成する
ため請求項１記載の発明は、導光板で導かれた光を導光
板の指針軸挿通孔の周辺部に形成された反射面で反射さ
せて指針に導入すると共に、前記反射面から出射する光
を、前記反射面に対向させて前記指針軸挿通孔の周辺部
の導光板に一体に形成され両側面に微細痕処理を施した
遮光壁で遮光するようにした計器の指針照明装置におい
て、前記遮光壁が、前記指針軸挿通孔の前記反射面の形
成側と同一側に前記導光板の厚みの範囲内に形成され
た、前記指針軸挿通孔に沿って形成される曲壁部と、こ
の曲壁部の両側にそれぞれ延設され前記導光板の一般部
の一部をも構成するブロック状の側壁部とから構成され
ていることを特徴とする。In order to achieve the above-mentioned object, the invention according to claim 1 reflects the light guided by the light guide plate by the reflection surface formed in the peripheral portion of the pointer shaft insertion hole of the light guide plate. Light introduced into the pointer and emitted from the reflecting surface.
The peripheral portion of the pointer shaft insertion hole by facing the reflection surface.
Is integrally formed on the light guide plate of both sides and has been treated with fine marks on both sides.
In a pointer illuminating device for an instrument in which light is blocked by a light blocking wall, the light blocking wall has a shape of the reflecting surface of the pointer shaft insertion hole.
Formed within the thickness range of the light guide plate on the same side as the growth side
In addition, a curved wall portion formed along the pointer shaft insertion hole,
The general portion of the light guide plate is extended on both sides of the curved wall of the
And a block-shaped side wall that also constitutes a part of
It is characterized by
【０００９】このため請求項１記載の発明では、乱反射
により反射面から外方へ出射した光は、指針軸挿通孔の
反射面の形成側と同一側に導光板の厚みの範囲内に形成
された曲壁部とブロック状の側壁部とから構成される遮
光壁に達し、該遮光壁の微細痕処理された両側面で減衰
及び拡散されて、見返し側面への直接的な照射を防ぐこ
とができる。Therefore, in the invention described in claim 1, the light emitted outward from the reflecting surface due to the diffused reflection is transmitted through the pointer shaft insertion hole.
Formed within the thickness range of the light guide plate on the same side as the reflective surface
Reaches the light-shielding wall composed of the curved wall portion and the block-shaped side wall portion, and is attenuated and diffused on both side surfaces of the light-shielding wall that have been subjected to fine scratches, and are directly reflected to the facing side surface. It can prevent unnecessary irradiation.
【００１０】[0010]
【００１１】[0011]
【００１２】また、請求項２記載の発明は、導光板で導
かれた光を導光板の指針軸挿通孔の周辺部に形成された
反射面で反射させて指針に導入すると共に、前記反射面
から出射する光を、前記反射面に対向させて前記指針軸
挿通孔の周辺部の導光板に一体に形成され両側面に微細
痕処理を施した遮光壁で遮光するようにした計器の指針
照明装置において、 前記遮光壁が、前記指針軸挿通孔の
前記反射面の形成側とは反対側の周辺部に対応する前記
導光板の上面に形成されていることを特徴とする。Further, the invention according to claim 2 uses a light guide plate to guide the light.
The reflected light was formed around the pointer shaft insertion hole of the light guide plate.
It is reflected on the reflective surface and introduced into the pointer, and the reflective surface
The light emitted from the
It is formed integrally with the light guide plate around the insertion hole and is fine on both sides.
A pointer for the instrument that is designed to block light with a light-shielding wall that has been subjected to scratch treatment.
In the illuminating device, the light-shielding wall may be the pointer shaft insertion hole.
The side corresponding to the peripheral portion on the side opposite to the side where the reflecting surface is formed
It is characterized in that it is formed on the upper surface of the light guide plate .
【００１３】このため請求項２記載の発明では、乱反射
により反射面から出射した光は、指針軸挿通孔の反射面
の形成側とは反対側の周辺部に対応する導光板の上面に
形成された遮光壁に達し、該遮光壁の微細痕処理された
両側面で減衰及び拡散されて、見返し側面への直接的な
照射を防ぐことができる。Therefore, according to the second aspect of the invention, the light emitted from the reflecting surface due to the diffuse reflection is reflected by the reflecting surface of the pointer shaft insertion hole.
To the light-shielding wall formed on the upper surface of the light guide plate corresponding to the peripheral portion on the side opposite to the side where the light-shielding side is formed, and are attenuated and diffused on both side surfaces of the light-shielding wall that have been subjected to fine scratches, and are directly reflected to the side surface of the facing. It can prevent unnecessary irradiation.
【００１４】[0014]
【００１５】[0015]
【００１６】[0016]
【発明の実施の形態】以下、この発明の実施の形態を図
面に基づき説明する。なお図４及び図５と同一の構成要
素は同一符号を付して説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. Such same components and Contact 4 and 5 are denoted by the same reference numerals.
【００１７】図１及び図２は、従来技術と同様のコンビ
ネーションメータの燃料計に適用した本発明の第１実施
形態としての計器の指針照明装置を示す。この指針照明
装置は、導光板１で導かれた光Ｌ１を導光板１の指針軸
挿通孔２の周辺部に形成された反射面３で反射させて指
針１１０に導入して指針１１０を照明するようになって
おり、両側面に微細痕処理を施した遮光壁５が反射面３
に対向する指針軸挿通孔２の周辺部の導光板１に一体に
形成されて全体構成されている。FIG. 1 and FIG. 2 show an instrument pointer illumination device as a first embodiment of the present invention applied to a fuel meter of a combination meter similar to the prior art. In this pointer illuminating device, the light L1 guided by the light guide plate 1 is reflected by a reflecting surface 3 formed around the pointer shaft insertion hole 2 of the light guide plate 1 and introduced into the pointer 110 to illuminate the pointer 110. The light-shielding wall 5 with fine marks on both sides is the reflecting surface 3
Is integrally formed with the light guide plate 1 in the peripheral portion of the pointer shaft insertion hole 2 facing the.
【００１８】第１実施形態では遮光壁５は、指針軸挿通
孔２の反射面３の形成側の周辺部に反射面３に隣接させ
て導光板１の厚みの範囲内に形成されている。In the first embodiment, the light shielding wall 5 is formed within the thickness range of the light guide plate 1 so as to be adjacent to the reflecting surface 3 at the peripheral portion of the pointer shaft insertion hole 2 on the side where the reflecting surface 3 is formed.
【００１９】具体的には図２に示すように、指針軸挿通
孔２は側部の一部を切り欠いた平面半円形状の縦溝とし
て形成されており、反射面３はこの指針軸挿通孔２に向
かって上り傾斜となる傾斜面として指針軸挿通孔２の周
辺部に３個形成されており、かつ遮光壁５は反射面３の
頂部から導光板１の厚み方向に沿って形成された一側面
５ａと、この一側面５ａに対応させて導光板１の側端面
として形成された他側面５ｂとを有して形成されている
（図１参照）。Specifically, as shown in FIG. 2, the pointer shaft insertion hole 2 is formed as a vertical semicircular vertical groove in which a part of a side portion is cut out, and the reflecting surface 3 is inserted into the pointer shaft insertion hole. Three inclined surfaces are formed in the peripheral portion of the pointer shaft insertion hole 2 as an inclined surface that is inclined toward the hole 2, and the light shielding wall 5 is formed from the top of the reflection surface 3 along the thickness direction of the light guide plate 1. 1 side surface 5a and another side surface 5b formed as a side end surface of the light guide plate 1 corresponding to the one side surface 5a (see FIG. 1).
【００２０】より詳しくは遮光壁５の一側面５ａは、中
央の反射面３に対向する一側曲面６ａと、この一側曲面
６ａの両側にそれぞれ連続して形成され両側の反射面
３，３にそれぞれ対向する一側平面７ａ，８ａとから構
成されており、その他側面５ｂは、一側曲面６ａに対応
する他側曲面６ｂと、この他側曲面６ｂの両側にそれぞ
れ連続して形成され一側平面７ａ，８ａにそれぞれ対応
する他側平面７ｂ，８ｂとから構成されている。すなわ
ち遮光壁５は、両側曲面６ａ，６ｂを有し導光板１の厚
み内の高さに形成された薄肉の曲壁部６と、この曲壁部
６の両側にそれぞれ両側平面７ａ，７ｂ，及び８ａ，８
ｂを有して延設され導光板１の一般部１ａと同一厚さで
該一般部１ａをも構成するブロック状の両側壁部７，８
とから構成されている。More specifically, one side surface 5a of the light shielding wall 5 is formed with one side curved surface 6a facing the central reflecting surface 3 and the reflecting surfaces 3, 3 on both sides which are continuously formed on both sides of the one side curved surface 6a. And the other side surface 5b is formed continuously with the other side curved surface 6b corresponding to the one side curved surface 6a and both sides of the other side curved surface 6b. The other side planes 7b and 8b respectively correspond to the side planes 7a and 8a. That is, the light shielding wall 5 has curved surfaces 6a and 6b on both sides, and has a thin curved wall portion 6 formed at a height within the thickness of the light guide plate 1, and both side flat surfaces 7a and 7b on both sides of the curved wall portion 6, respectively. And 8a, 8
Block-shaped side wall portions 7 and 8 extending with b and having the same thickness as the general portion 1a of the light guide plate 1 and also constituting the general portion 1a.
It consists of and.
【００２１】さらに遮光壁５はその両側面５ａ，５ｂに
微細痕処理が施されて形成されている。第１実施形態で
はこの微細痕処理はホーニング加工により施される。す
なわち遮光壁５の両側面５ａ，５ｂをホーニング加工す
ることにより該両側面５ａ，５ｂには研削痕としてのク
ロスハッチが形成される。Further, the light-shielding wall 5 is formed by subjecting both side surfaces 5a and 5b thereof to fine trace treatment. In the first embodiment, this fine mark treatment is performed by honing. That is, by performing honing processing on both side surfaces 5a, 5b of the light shielding wall 5, cross hatches as grinding marks are formed on the both side surfaces 5a, 5b.
【００２２】このように形成された導光板１は文字板１
０３の裏面側に積層させて取り付けられ、かつ指針１１
０はその指針軸１１３を指針軸挿通孔２に挿通させて取
り付けられて第１実施形態としての計器の指針照明装置
を構成することができる。なお、符号１１２は指針１１
０の基端部を覆うキャップであり、前記基端部に入射し
た光の外部への漏れを防いでいる。The light guide plate 1 thus formed is a dial plate 1.
03 is attached to the back side of the stack, and the pointer 11
0 is attached by inserting the pointer shaft 113 into the pointer shaft insertion hole 2 to configure the pointer illuminating device of the meter as the first embodiment. In addition, reference numeral 112 is a pointer 11
This is a cap that covers the base end portion of 0, and prevents the light incident on the base end portion from leaking to the outside.
【００２３】この第１実施形態によれば、図１に示すよ
うに導光板１で導かれた光源２００の光Ｌ１（図１に実
線で示す）は反射面３で反射して指針１１０に入射する
と共に指針１１０側の反射面１１１で反射して指針１１
０を照明することができ、乱反射した光Ｌ２（図１に点
線で示す）は反射面３から外方へ出射して遮光壁５に達
し、該遮光壁５の微細痕処理された両側面５ａ，５ｂで
減衰及び拡散される。これにより乱反射した光Ｌ２によ
る見返し１０２の側面への直接的な照射を防ぐことがで
きるので、指針１１０を見返し１０２に近接させて設け
たにも拘らず見返し１０２の部分的な高輝度化がさけら
れ、以て外観上の美観向上をもたらすことができる。According to the first embodiment, the light L1 (shown by the solid line in FIG. 1) of the light source 200 guided by the light guide plate 1 as shown in FIG. The pointer 11 is reflected by the reflecting surface 111 on the pointer 110 side.
It is possible to illuminate 0, and the irregularly reflected light L2 (shown by a dotted line in FIG. 1) is emitted outward from the reflecting surface 3 and reaches the light shielding wall 5, and both side surfaces 5a of the light shielding wall 5 which have been subjected to the fine trace treatment. , 5b are attenuated and diffused. As a result, it is possible to prevent the side surface of the dial 102 from being directly illuminated by the irregularly reflected light L2. Therefore, the appearance can be improved.
【００２４】また第１実施形態では、遮光壁５を設ける
だけの簡単な構造であると共に、該遮光壁５は導光板１
自体の成形時に同時に一体成形することができ、かつ遮
光壁５の両側面５ａ，５ｂをホーニング加工することに
より必要とする微細痕処理を容易に施すことができるの
で、部品点数の増加及び作業の複雑化を伴うこともな
い。Further, the first embodiment has a simple structure in which the light shielding wall 5 is provided, and the light shielding wall 5 is provided in the light guide plate 1.
Since it can be integrally molded at the same time as itself, and the necessary fine trace treatment can be easily performed by honing the both side surfaces 5a and 5b of the light shielding wall 5, the number of parts can be increased and the work can be performed. There is no complication.
【００２５】図３及び図４は、本発明の第２実施形態と
しての計器の指針照明装置を示す。この第２実施形態は
遮光壁の形成位置が異なるだけで、他の構成は第１実施
形態と同様になっている。FIG. 3 and FIG. 4 show an instrument pointer illuminating device as a second embodiment of the present invention. The second embodiment is the same as the first embodiment except for the formation position of the light shielding wall.
【００２６】すなわち第２実施形態においては遮光壁１
０が、指針軸挿通孔２の反射面３の形成側とは反対側の
周辺部に対応する導光板１の上面に一体に形成されてい
る。このとき指針軸挿通孔２は円形に形成されており、
遮光壁１０は大略平面の両側面１０ａ，１０ｂを有する
薄肉の立壁として形成されており、かつ遮光壁１０の両
側面１０ａ，１０ｂには第１実施形態と同様にホーニン
グ加工により微細痕処理が施されている。That is, in the second embodiment, the light shielding wall 1
0 is integrally formed on the upper surface of the light guide plate 1 corresponding to the peripheral portion of the pointer shaft insertion hole 2 opposite to the side where the reflection surface 3 is formed. At this time, the pointer shaft insertion hole 2 is formed in a circular shape,
The light-shielding wall 10 is formed as a thin-walled standing wall having substantially flat side surfaces 10a and 10b, and both side surfaces 10a and 10b of the light-shielding wall 10 are finely traced by honing as in the first embodiment. Has been done.
【００２７】この第２実施形態によれば、図３に示すよ
うに導光板１で導かれた光源２００の光Ｌ１（図３に実
線で示す）は反射面３で反射して指針１１０に入射する
と共に指針１１０側の反射面１１１で反射して指針１１
０を照明することができ、乱反射した光Ｌ２（図３に点
線で示す）は反射面３から外方へ出射して遮光壁１０に
達し、該遮光壁１０の微細痕処理された両側面１０ａ，
１０ｂで減衰及び拡散される。これにより乱反射した光
Ｌ２による見返し１０２の側面への直接的な照射を防ぐ
ことができるので、指針１１０を見返し１０２に近接さ
せて設けたにも拘らず見返し１０２の部分的な高輝度化
がさけられ、以て外観上の美観向上をもたらすことがで
きる。According to the second embodiment, the light L1 (shown by the solid line in FIG. 3) of the light source 200 guided by the light guide plate 1 as shown in FIG. The pointer 11 is reflected by the reflecting surface 111 on the pointer 110 side.
It is possible to illuminate 0, and the irregularly reflected light L2 (shown by a dotted line in FIG. 3) is emitted outward from the reflecting surface 3 and reaches the light-shielding wall 10, and both side surfaces 10a of the light-shielding wall 10 which have been subjected to fine mark treatment are processed. ，
Attenuated and diffused at 10b. As a result, it is possible to prevent the side surface of the dial 102 from being directly illuminated by the irregularly reflected light L2. Therefore, the appearance can be improved.
【００２８】このとき遮光壁１０は、指針１１０の基端
部に被着したキャップ１１２の投影面積内に位置して外
部に露出することがないので、この点でも外観を損ねる
ことがない。At this time, the light shielding wall 10 is located within the projected area of the cap 112 attached to the base end portion of the pointer 110 and is not exposed to the outside.
【００２９】また第２実施形態は、第１実施形態と同様
に遮光壁１０を設けた簡単な構造で、かつこの遮光壁１
０の両側面１０ａ，１０ｂにホーニング加工により容易
に微細痕処理を施すことができるので、作業の複雑化を
伴うこともない。Further, the second embodiment has a simple structure in which the light shielding wall 10 is provided as in the first embodiment, and the light shielding wall 1
Since both side surfaces 10a and 10b of 0 can be easily subjected to fine trace treatment by honing, the work is not complicated.
【００３０】[0030]
【発明の効果】以上詳細に説明したように本発明によれ
ば次の効果を奏することができる。As described in detail above, according to the present invention, the following effects can be obtained.
【００３１】すなわち、請求項１記載の発明によれば、
乱反射により反射面から外方へ出射した光は、指針軸挿
通孔の反射面の形成側と同一側に導光板の厚みの範囲内
に形成された曲壁部とブロック状の側壁部とから構成さ
れる遮光壁に達し、該遮光壁の微細痕処理された両側面
で減衰及び拡散されて、見返し側面への直接的な照射を
防ぐことができるので、見返し側面の部分的な高輝度化
による照明のアンバランスを避けることができ、以て外
観上の美観向上をもたらす計器の指針照明装置を提供す
ることができる。That is, according to the invention of claim 1,
The light emitted from the reflecting surface to the outside by irregular reflection is inserted into the pointer shaft.
Within the range of the thickness of the light guide plate on the same side as the side where the reflective surface of the through hole is formed
It is composed of a curved wall part and a block-shaped side wall part
Since it reaches the light-shielding wall and is attenuated and diffused on both side surfaces of the light-shielding wall that have been subjected to fine scratches, it is possible to prevent direct irradiation of the light-reflective side surface. Therefore, it is possible to provide a pointer illumination device for an instrument, which can avoid the imbalance of the above, and thereby improve the aesthetic appearance.
【００３２】その上請求項１記載の発明は、遮光壁を設
けるだけの簡単な構造であると共に、該遮光壁は導光板
自体の成形時に同時に一体成形することができるので、
部品点数の増加及び作業の複雑化を伴うこともない。In addition, the invention according to claim 1 has a simple structure in which only the light shielding wall is provided, and since the light shielding wall can be integrally formed at the same time when the light guide plate itself is formed,
There is no increase in the number of parts and complexity of work.
【００３３】[0033]
【００３４】また、請求項２記載の発明によれば、乱反
射により反射面から出射した光は、指針軸挿通孔の前記
反射面の形成側とは反対側の周辺部に対応する導光板の
上面に形成された遮光壁に達し、該遮光壁の微細痕処理
された両側面で減衰及び拡散されて、見返し側面への直
接的な照射を防ぐことができ、これにより前述した請求
項１記載の発明と同様の効果を奏することができる。According to the second aspect of the invention, the light emitted from the reflecting surface due to the diffused reflection is the light of the pointer shaft insertion hole.
It reaches the light-shielding wall formed on the upper surface of the light guide plate corresponding to the peripheral portion on the side opposite to the side on which the reflecting surface is formed, and is attenuated and diffused on both side surfaces of the light-shielding wall that have been subjected to the fine mark treatment, and then the light-shielding side surface Direct irradiation can be prevented, and the same effect as that of the invention described in claim 1 can be obtained.
【００３５】[0035]
【図１】本発明の第１実施形態としての計器の指針照明
装置のハッチングを省略した断面図である。FIG. 1 is a cross-sectional view in which hatching of a pointer illuminating device for an instrument according to a first embodiment of the present invention is omitted.
【図２】図１の計器の指針照明装置に用いる導光板の要
部を示し、（ａ）は平面図、（ｂ）は裏面側斜視図であ
る。2A and 2B show a main part of a light guide plate used in the pointer illumination device of the instrument of FIG. 1, in which FIG. 2A is a plan view and FIG.
【図３】本発明の第２実施形態としての計器の指針照明
装置のハッチングを省略した断面図である。FIG. 3 is a cross-sectional view in which hatching of a pointer illuminating device for an instrument as a second embodiment of the present invention is omitted.
【図４】図３の計器の指針照明装置に用いる導光板の要
部の平面図である。4 is a plan view of a main part of a light guide plate used in the pointer lighting device of the instrument of FIG.
【図５】従来のコンビネーションメータの一部を示す平
面図である。FIG. 5 is a plan view showing a part of a conventional combination meter.
【図６】図５のコンビネーションメータの一部のハッチ
ングを省略した断面図である。6 is a cross-sectional view of the combination meter of FIG. 5 with some hatching omitted.
１ 導光板 ２ 指針軸挿通孔 ３ 反射面 ５，１０ 遮光壁 ５ａ，５ｂ，１０ａ，１０ｂ 側面（遮光壁の） １１０ 指針 Ｌ１ 光 1 Light guide plate 2 Pointer shaft insertion hole 3 reflective surface 5,10 Shading wall 5a, 5b, 10a, 10b Side surface (of light shielding wall) 110 pointer L1 light
Claims (2)
通孔の周辺部に形成された反射面で反射させて指針に導
入すると共に、前記反射面から出射する光を、前記反射
面に対向させて前記指針軸挿通孔の周辺部の導光板に一
体に形成され両側面に微細痕処理を施した遮光壁で遮光
するようにした計器の指針照明装置において、前記遮光壁が、前記指針軸挿通孔の前記反射面の形成側
と同一側に前記導光板の厚みの範囲内に形成された、前
記指針軸挿通孔に沿って形成される曲壁部と、この曲壁
部の両側にそれぞれ延設され前記導光板の一般部の一部
をも構成するブロック状の側壁部とから構成されている
ことを特徴とする計器の指針照明装置。1. The light guided by the light guide plate is reflected by a reflection surface formed in the peripheral portion of the pointer shaft insertion hole of the light guide plate and introduced into the pointer, and the light emitted from the reflection surface is reflected by the reflection surface.
The light guide plate around the pointer shaft insertion hole so that it faces the surface.
Light-shielding with a light-shielding wall that is formed on the body and has fine marks on both sides
In the pointer illuminating device of the instrument, the light shielding wall is on the side where the reflecting surface of the pointer shaft insertion hole is formed.
Formed on the same side as the thickness of the light guide plate,
A curved wall portion formed along the pointer shaft insertion hole and the curved wall
Part of the general part of the light guide plate that is extended on both sides of the part
And a block-shaped side wall portion that also constitutes
通孔の周辺部に形成された反射面で反射させて指針に導
入すると共に、前記反射面から出射する光を、前記反射
面に対向させて前記指針軸挿通孔の周辺部の導光板に一
体に形成され両側面に微細痕処理を施した遮光壁で遮光
するようにした計器の指針照明装置において、 前記遮光壁が、前記指針軸挿通孔の前記反射面の形成側
とは反対側の周辺部に対応する前記導光板の上面に 形成
されていることを特徴とする計器の指針照明装置。2. The light guided by the light guide plate is inserted into the guide shaft of the light guide plate.
It is reflected on the reflective surface formed around the through hole and guided to the pointer.
The light emitted from the reflecting surface as well as entering
The light guide plate around the pointer shaft insertion hole so that it faces the surface.
Light-shielding with a light-shielding wall that is formed on the body and has fine marks on both sides
In the pointer illuminating device of the instrument, the light shielding wall is on the side where the reflecting surface of the pointer shaft insertion hole is formed.
A pointer illuminating device for an instrument, which is formed on the upper surface of the light guide plate corresponding to the peripheral portion on the side opposite to .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17708197A JP3444754B2 (en) | 1997-07-02 | 1997-07-02 | Instrument pointer lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17708197A JP3444754B2 (en) | 1997-07-02 | 1997-07-02 | Instrument pointer lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1123328A JPH1123328A (en) | 1999-01-29 |
| JP3444754B2 true JP3444754B2 (en) | 2003-09-08 |
Family
ID=16024801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17708197A Expired - Fee Related JP3444754B2 (en) | 1997-07-02 | 1997-07-02 | Instrument pointer lighting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3444754B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19934951A1 (en) * | 1999-07-26 | 2001-02-01 | Mannesmann Vdo Ag | Multi-component plastic injection molded part with visual display function |
| JP5481780B2 (en) * | 2007-11-27 | 2014-04-23 | 日本精機株式会社 | Indicating instrument |
| JP6425011B2 (en) * | 2014-06-27 | 2018-11-21 | カシオ計算機株式会社 | Lighting device and watch |
| JP2018048986A (en) * | 2016-09-23 | 2018-03-29 | ビステオン グローバル テクノロジーズ インコーポレイテッド | Decorative luminaire |
-
1997
- 1997-07-02 JP JP17708197A patent/JP3444754B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1123328A (en) | 1999-01-29 |
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