JPH0810780Y2 - Automotive instrument - Google Patents
Automotive instrumentInfo
- Publication number
- JPH0810780Y2 JPH0810780Y2 JP1990068476U JP6847690U JPH0810780Y2 JP H0810780 Y2 JPH0810780 Y2 JP H0810780Y2 JP 1990068476 U JP1990068476 U JP 1990068476U JP 6847690 U JP6847690 U JP 6847690U JP H0810780 Y2 JPH0810780 Y2 JP H0810780Y2
- Authority
- JP
- Japan
- Prior art keywords
- pointer
- indicator
- light
- colored layer
- needle
- 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
- 239000003973 paint Substances 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 241000316907 Eucalymnatus tessellatus Species 0.000 abstract 1
- 238000005286 illumination Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 3
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000004040 coloring Methods 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003760 hair shine Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Arrangement of adaptations of instruments
-
- B60K35/60—
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/28—Structurally-combined illuminating devices
Abstract
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、指針を光輝させるようにした自動車用計器
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an automotive instrument in which a pointer is illuminated.
〔従来の技術〕 従来から、自動車用計器の夜間における視認性を向上
させるために、指針自体を光輝させるようにしたものが
知られている。[Prior Art] Conventionally, in order to improve the visibility at night of an automobile instrument, a device in which a pointer itself is made to shine is known.
第７図及び第８図はこの種の指針を示したもので、図
において１は計測量に応じて指針軸1aを駆動する計器本
体としての内機、２は文字板、３は文字板に形成された
文字、目盛り等を照明する照射光を文字板２の裏面に導
くため文字板２の裏面側に配置された導光板、４はバル
ブ、５は指針軸1aに固着された指針である。7 and 8 show a pointer of this kind. In the figures, 1 is an internal unit as a main body of an instrument that drives a pointer shaft 1a according to a measured amount, 2 is a dial, and 3 is a dial. A light guide plate 4 arranged on the back side of the dial 2 for guiding irradiation light for illuminating formed characters, scales, etc. to the back side of the dial 2, 4 is a valve, and 5 is a pointer fixed to the pointer shaft 1a. .
上記バルブ４からの照射光Ｌは、導光板３の中央開口
部3aに形成された反射面3bで略90°の角度で反射して指
針５の基端部5aへ導かれるようになっている。指針５内
に導入した照射光Ｌは、基端部5aに形成された反射面5b
で再度略90°の角度で反射し、導光性の先細角柱状の指
示部5c内部で反射を繰り返してその先端部に到達する。
上記指示部5cの裏面には蛍光塗料からなる着色層６が形
成されており、この蛍光塗料からなる着色層６に当たっ
た上記照射光Ｌが乱反射することで、上記指示部5cが光
輝して視認できるようになっている。また、上記指針５
の基端部5a上部には、天井付円筒状の指針キャップ７が
装着され、上記基端部5aから指針５外に照射光Ｌが漏れ
るのを防いでいる。The light L emitted from the bulb 4 is reflected by the reflecting surface 3b formed in the central opening 3a of the light guide plate 3 at an angle of about 90 ° and guided to the base end 5a of the pointer 5. . The irradiation light L introduced into the pointer 5 is reflected by the reflecting surface 5b formed on the base end portion 5a.
Then, the light is reflected again at an angle of about 90 °, and is repeatedly reflected inside the light guiding tapered columnar pointing portion 5c to reach its tip.
A colored layer 6 made of fluorescent paint is formed on the back surface of the indicator 5c, and the irradiation light L striking the colored layer 6 made of fluorescent paint is diffusely reflected, so that the indicator 5c shines. It is visible. Also, the above guideline 5
A cylindrical pointer cap 7 with a ceiling is mounted on the upper portion of the proximal end portion 5a of the above to prevent the irradiation light L from leaking from the proximal end portion 5a to the outside of the pointer 5.
しかし、上記従来の構成においては、指針５の指示部
5cが先細柱状の角錐形状となっているので、照射光Ｌが
反射を繰り返しながら指示部5cの先端部に進むにつれて
照射光が指針５外へ放出し易くなり、指示部5cの先端部
まで十分な照射光が到達せず、先端部に近づくほど指示
部5cの光輝が暗くなるという問題を有している。また、
蛍光塗料からなる着色層６が指針５の指示部5cの裏面全
体にわたって形成されており、その塗布面積が広いの
で、この広い面積の蛍光塗料からなる着色層６に照射光
Ｌが当たると、そこで照射光Ｌが吸収されて光の損失が
生じてしまい、これにより指示部5cが暗くなってしまう
という問題をも有している。However, in the above-mentioned conventional configuration, the indicator portion of the pointer 5 is
Since 5c has a tapered columnar pyramid shape, the irradiation light L is more likely to be emitted to the outside of the pointer 5 as the irradiation light L repeats reflection and advances to the tip of the indicator 5c, and the tip 5c is sufficiently extended. However, there is a problem that the irradiation light does not reach and the brightness of the indicator 5c becomes darker as it approaches the tip. Also,
The colored layer 6 made of fluorescent paint is formed over the entire back surface of the indicator portion 5c of the pointer 5, and the coating area is large. Therefore, when the irradiation light L hits the colored layer 6 made of fluorescent paint of this wide area, There is also a problem that the irradiation light L is absorbed and a light loss occurs, which causes the indicator 5c to become dark.
そして、これら指示部5cが暗くなる欠点を補おうとす
ると、指針５内に大量の照射光を導入するべく指示部5c
全体を太く形成しなければならず、これにより、デザイ
ン的に高級感が出せないという問題を有している。Then, if an attempt is made to compensate for the defect that the indicator 5c becomes dark, the indicator 5c should be introduced so as to introduce a large amount of irradiation light into the pointer 5.
Since the whole must be formed thick, there is a problem that a high-class design cannot be obtained.
本考案は上記した点に鑑みてなされたもので、その指
示部が均一に光輝すると共に、細く形成され、視認性が
良好であると同時に高級感が得られるようにした指針を
備えた自動車用計器を提供することを目的とする。The present invention has been made in view of the above-mentioned points, and for an automobile equipped with a pointer which has a finely lit indicator portion, is thinly formed, and has good visibility and at the same time a high-class feeling. The purpose is to provide an instrument.
上記目的を達成するために本考案に係る自動車用計器
は、蛍光塗料からなる着色層が裏面に形成され、基端部
に導入された上記着色層により乱反射された光により光
輝する指示部を有する指針を、基端部において計器本体
の指針軸に固着してなる自動車用計器において、上記指
示部の全長を円形断面の細長円柱状に形成し、上記着色
層を前記指示部の径より小さい細幅にかつその全長にわ
たって形成したことを特徴とするものである。In order to achieve the above-mentioned object, the automotive instrument according to the present invention has a colored layer made of a fluorescent paint on the back surface, and has an indicator radiated by the light diffusely reflected by the colored layer introduced at the base end. In an automotive instrument in which the pointer is fixed to the pointer shaft of the instrument main body at the base end, the entire length of the indicator is formed into an elongated cylindrical shape with a circular cross section, and the colored layer is thinner than the diameter of the indicator. It is characterized in that it is formed over the width and over the entire length thereof.
上記構成によれば、指針の指示部の全長を円形断面の
細長円柱状に形成したので、指示部内に基端部から導入
された光は全反射を繰り返しながらその先端へ進むよう
になり、この反射の過程で光が指示部の外に放出される
量は極めて少なくなり、指示部の先端まで光が届くよう
になる。According to the above configuration, since the entire length of the indicator portion of the pointer is formed in an elongated cylindrical shape having a circular cross section, the light introduced from the base end portion into the indicator portion proceeds to the tip thereof while repeating total reflection. In the process of reflection, the amount of light emitted outside the indicator is extremely small, and the light reaches the tip of the indicator.
また、基端部から導入された光は指示部の先端まで全
反射しながら進行していく過程で、指示部の円形裏面に
形成した蛍光塗料からなる着色層で乱反射されるが、円
形断面の指示部の表面でのレンズ作用により、着色層は
細幅であっても、指示部の全幅において視認されるの
で、指示部の着色層の幅を極めて細くでき、この着色層
での吸収による光の損失を抑えることができる。Further, the light introduced from the base end portion is diffusely reflected by the colored layer made of the fluorescent paint formed on the circular back surface of the indicator in the process of proceeding to the tip of the indicator while being totally reflected. Due to the lens action on the surface of the indicator, even if the colored layer is narrow, the colored layer is visible over the entire width of the indicator, so the width of the colored layer of the indicator can be made extremely small, and the light due to absorption by this colored layer The loss of can be suppressed.
更に、指示部の先端まで全反射しながら進行していく
光を乱反射させる着色層を形成した裏面が円形の一部分
からなっているので、乱反射光の多くが指示部の中心に
指向され指示部の着色層の視認に有効に利用される。Furthermore, since the back surface on which the colored layer that diffuses and reflects the light that is totally reflected to the tip of the indicator is formed is a circular part, most of the diffusely reflected light is directed to the center of the indicator and It is effectively used for visual recognition of the colored layer.
しかも、指示部断面がその全長において単純な円形形
状となっているので、その成形が極めて簡単となってい
る。Moreover, since the cross section of the indicator has a simple circular shape over its entire length, its molding is extremely simple.
以下、本考案の実施例を第１図乃至第６図を参照して
説明し、従来と同一部分には同一符号を付す。Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 6, and the same parts as those in the prior art will be designated by the same reference numerals.
第１図乃至第４図は本考案の一実施例を示したもの
で、文字板２の裏面側には、アクリル樹脂等からなる導
光板３が配設されており、この導光板３の端部に配設さ
れたバルブ４からの照射光Ｌを文字板２の裏面に導いて
文字、目盛り等を照明するようになっている。また、上
記導光板３の裏面側には、計器本体としての内機１が配
設されており、この内機１により回転駆動される指針軸
1aが、上記導光板３に形成された中央開口部3a内に位置
するようになっている。上記指針軸1aには、指針５を構
成するアクリル樹脂等からなる指示部5cの基端部5aが保
持される袴部7aが嵌着されており、この袴部7aには、上
記指示部5cの基端部5a側をマスクし、かつ、後述するよ
うに導光板３から指示部5cに導かれる照射光Ｌが外部に
漏れないようにするための天井付円筒状の指針キャップ
７が一体に形成されている。1 to 4 show an embodiment of the present invention, in which a light guide plate 3 made of acrylic resin or the like is disposed on the back side of the dial plate 2. The end of the light guide plate 3 is shown in FIG. Irradiation light L from a bulb 4 disposed in the part is guided to the back surface of the dial 2 to illuminate characters, scales and the like. On the back side of the light guide plate 3, an inner unit 1 as a main body of the instrument is arranged, and a pointer shaft rotatably driven by the inner unit 1.
1a is located in the central opening 3a formed in the light guide plate 3. The pointer shaft 1a is fitted with a hakama portion 7a for holding a base end portion 5a of a pointer portion 5c made of an acrylic resin or the like which constitutes the pointer 5, and the hull portion 7a has the pointer portion 5c. A cylindrical pointer cap 7 with a ceiling for masking the base end portion 5a side of the and preventing the irradiation light L guided from the light guide plate 3 to the indicating portion 5c from leaking to the outside as described later is integrally formed. Has been formed.
また、上記導光板３の中央開口部3aには、バルブ４か
らの照射光Ｌを略90°の角度で反射して上記指示部5cの
基端部5aに導入するための反射面3bが形成されており、
さらに上記指示部5cの基端部5aには、指示部5c内に導入
した照射光Ｌを指示部5cの先端側に反射するための反射
面5bが形成されている。また、上記指示部5cは、円形断
面の細長円柱状に形成されており、この指示部5cの裏面
には、指示部5cの径よりも細幅の蛍光塗料からなる着色
層６がその全長にわたって形成されている。Further, the central opening 3a of the light guide plate 3 is formed with a reflecting surface 3b for reflecting the irradiation light L from the bulb 4 at an angle of approximately 90 ° and introducing it into the base end 5a of the indicating portion 5c. Has been done,
Further, a reflecting surface 5b for reflecting the irradiation light L introduced into the indicating portion 5c to the tip side of the indicating portion 5c is formed on the base end portion 5a of the indicating portion 5c. Further, the indicating portion 5c is formed in an elongated cylindrical shape having a circular cross section, and the coloring layer 6 made of fluorescent paint having a width narrower than the diameter of the indicating portion 5c is formed on the entire back surface of the indicating portion 5c. Has been formed.
本実施例においては、バルブ４からの照射光Ｌが反射
面3b、5bを介して指示部5c内に導入され、第３図に示し
たように、上記照射光Ｌは指示部5c内で全反射を繰り返
しながらその先端部まで進む。この時、上記指示部5c内
で反射を繰り返す照射光Ｌが指示部5cの裏面に形成した
蛍光塗料からなる着色層６に当たって乱反射するが、乱
反射光Ｌ′はその多くが指示部5cの中心に指向され、し
かも第４図に示したように、この乱反射光Ｌ′が指示部
5cの円形表面のレンズ作用によって一定の指向性をもっ
て指示部5cから出射するようになる。そして、この出射
光Ｌ′が運転者の目に到達することで、上記指示部5c全
体が光輝して視認されるものである。In this embodiment, the irradiation light L from the bulb 4 is introduced into the indicator 5c through the reflecting surfaces 3b and 5b, and as shown in FIG. Repeat the reflection and proceed to the tip. At this time, the irradiation light L which is repeatedly reflected in the pointing portion 5c hits the coloring layer 6 made of fluorescent paint formed on the back surface of the pointing portion 5c and is diffusely reflected, but most of the irregular reflection light L'is at the center of the pointing portion 5c. This diffusely reflected light L'is directed, and as shown in FIG.
Due to the lens action of the circular surface of 5c, it comes out from the indicator 5c with a certain directivity. Then, when the emitted light L ′ reaches the eyes of the driver, the entire indicating portion 5c is visually shined and visually recognized.
従って、本実施例においては、指針の指示部5cを細長
円柱状に形成したので、指示部5c内に導入される照射光
Ｌが全反射を繰り返しながらその先端へと進むようにな
り、この間の指針５外への照射光Ｌの放出が極めて少な
くなり、指示部5cの先端まで照射光Ｌが届くことで、指
針５全体を均一に光輝させることができる。Therefore, in the present embodiment, since the indicator portion 5c of the pointer is formed in the shape of an elongated cylinder, the irradiation light L introduced into the indicator portion 5c repeats total reflection and travels to the tip thereof. The irradiation light L emitted to the outside of the pointer 5 is extremely small, and the irradiation light L reaches the tip of the indicator 5c, so that the entire pointer 5 can be made to shine uniformly.
また、上記指示部5cが円形断面となっているので、そ
のレンズ作用により指示部5c全面が光輝するように視認
でき、これにより、指示部5cの裏面の蛍光塗料からなる
着色層６を細幅に形成することができ、この蛍光塗料か
らなる着色層６における照射光Ｌの吸収を少なくして光
の損失を抑えることができる。しかも、着色層を形成し
た裏面が円形の一部分からなり、ここで乱反射された光
の多くが指示部の中心に指向され指示部の着色層の視認
に有効に利用され、指示部の全幅で視認される着色層が
より高輝度なものとなる。そして、指針５を細く均一に
高輝度で光輝させることで、視認性が良好で高級感のあ
る指針５を得ることができる。Further, since the indicator portion 5c has a circular cross section, it can be visually recognized that the entire surface of the indicator portion 5c shines due to the lens action thereof, whereby the colored layer 6 made of fluorescent paint on the back surface of the indicator portion 5c is narrowed. It is possible to reduce the absorption of the irradiation light L in the colored layer 6 made of this fluorescent paint and suppress the loss of light. In addition, the back surface on which the colored layer is formed consists of a circular part, and most of the light diffusely reflected here is directed to the center of the indicator and is effectively used for visual confirmation of the colored layer of the indicator. The colored layer thus obtained has higher brightness. Then, by making the pointer 5 shine thinly and uniformly with high brightness, it is possible to obtain the pointer 5 having good visibility and a high-class feeling.
第５図は本考案の他の実施例を示したもので、文字板
２の裏面側に取り付けられた内機１の指針軸1aの先端部
には、指針袴８が圧入嵌合されており、この指針袴８上
にはプリント基板９が載置固定されている。プリント基
板９上には、発光ダイオード、白熱電球などの発光素子
10がそのリード線10aを基板の導電パターンに半田付け
等によって電気的、機械的に接続することで取り付けら
れている。また、上記発光素子10が取り付けられたプリ
ント基板９には、その上方より天井付円筒状の指針キャ
ップ７が嵌着固定されており、この指針キャップ７によ
って上記プリント基板９、発光素子10及び指針５の指示
部5cの基端部5a側等の余分な部分がマスクされるように
なっている。FIG. 5 shows another embodiment of the present invention, in which a pointer hak 8 is press-fitted to the tip of the pointer shaft 1a of the inner unit 1 attached to the back side of the dial 2. A printed circuit board 9 is placed and fixed on the pointer hakama 8. On the printed circuit board 9, light emitting elements such as light emitting diodes and incandescent light bulbs are provided.
10 is attached by electrically and mechanically connecting the lead wire 10a to the conductive pattern of the substrate by soldering or the like. A cylindrical pointer cap 7 with a ceiling is fitted and fixed to the printed circuit board 9 to which the light emitting element 10 is attached from above the printed circuit board 9, the printed circuit board 9, the light emitting element 10 and the pointer. An unnecessary portion such as the proximal end portion 5a side of the indicating portion 5c of No. 5 is masked.
また、上記指針キャップ７の周面には、アクリル樹脂
等で形成された指針５の円形断面の細長円柱状の指示部
5cが嵌合保持されており、この指示部5cの基端部5aが上
記発光素子10と対向して配置され、発光素子10からの照
射光Ｌが上記基端部5aを介して指示部5c内に導入される
ようになっている。また、上記指示部5cの裏面には、細
幅の蛍光塗料からなる着色層６がその全長にわたって形
成されている。Further, on the peripheral surface of the pointer cap 7, an indicator having a slender cylindrical shape with a circular cross section of the pointer 5 formed of acrylic resin or the like.
5c is fitted and held, and the base end portion 5a of the pointing portion 5c is arranged so as to face the light emitting element 10, and the irradiation light L from the light emitting element 10 is passed through the base end portion 5a. It is supposed to be introduced inside. Further, a colored layer 6 made of narrow fluorescent paint is formed over the entire length of the back surface of the indicating portion 5c.
本実施例においては、図示しない給電構造を介して内
機１から発光素子10に電流が流れて発光素子10が点灯す
ると、この発光素子10の照射光Ｌが指針５の基端部5aか
ら指示部5c内に直接導入され、上記照射光Ｌは指示部5c
内で全反射を繰り返しながらその先端側まで進むように
なっている。そして、この指示部5c内で反射を繰り返す
照射光Ｌが指示部5cの円形裏面に形成した蛍光塗料から
なる着色層６に当たって指示部の中心に向けて乱反射
し、この乱反射光Ｌ′が指示部5cのレンズ作用によって
一定の指向性をもって指示部5cから出射するようになっ
ている。In this embodiment, when a current flows from the inner unit 1 to the light emitting element 10 through a power supply structure (not shown) and the light emitting element 10 is turned on, the irradiation light L of the light emitting element 10 is directed from the proximal end portion 5a of the pointer 5. Directly introduced into the portion 5c, the irradiation light L is directed to the indicating portion 5c.
It repeats the total internal reflection and proceeds to the tip side. The irradiation light L repeatedly reflected in the indicator 5c hits the colored layer 6 made of fluorescent paint formed on the circular back surface of the indicator 5c and is diffusely reflected toward the center of the indicator, and this irregularly reflected light L'is The lens action of 5c causes the pointing portion 5c to emit light with a certain directivity.
従って、本実施例の場合も、指針５を細く均一に高輝
度で光輝させることができ、視認性が良好で高級感のあ
る指針５を得ることができる。Therefore, also in the case of the present embodiment, the pointer 5 can be made thin and uniform to shine with high brightness, and the pointer 5 having good visibility and a high-class feeling can be obtained.
第６図は上記指針５の指示部5cの変形例を示したもの
で、同図において、上記指示部5cの裏面全体に細幅の蛍
光塗料からなる着色層６を形成すると共に、その先端部
にテーパ部5dを形成したものである。このようにすれ
ば、指示部5cの先端部まで到達した光が上記テーパ部5d
で略90°の角度で反射して運転者側に出射するようにな
り、指針５全体が光輝して視認できると共に、指針５の
先端部をより強く光輝して視認することができ、より視
認性を高めることができる。FIG. 6 shows a modified example of the indicator portion 5c of the pointer 5, in which the colored layer 6 made of narrow fluorescent paint is formed on the entire back surface of the indicator portion 5c and the tip portion thereof is formed. The taper portion 5d is formed on. In this way, the light reaching the tip of the indicator 5c will not be transmitted to the taper 5d.
It will be reflected at an angle of about 90 ° and will be emitted to the driver side, and the entire pointer 5 can be visually recognized by shining, and the tip part of the pointer 5 can be visually shined more strongly and can be more visually recognized. You can improve your sex.
以上述べたように本考案によれば、指針の指示部の全
長を円形断面の細長円柱状に形成したので、指示部内に
基端部から導入された光は全反射を繰り返しながらその
先端へ進むようになり、この反射の過程で光が指示部の
外に放出される量は極めて少なくなり、指示部の先端ま
で光が届くことで、指針全体を均一に光輝させることが
できるようになる。As described above, according to the present invention, since the entire length of the indicator portion of the pointer is formed in the shape of an elongated cylinder having a circular cross section, the light introduced from the base end portion into the indicator portion advances to the tip thereof while repeating total reflection. As a result, the amount of light emitted to the outside of the indicator is extremely small in the process of this reflection, and the light reaches the tip of the indicator so that the entire pointer can be made to shine uniformly.
また、基端部から導入された光は指示部の先端まで全
反射しながら進行していく過程で、指示部の円形裏面に
形成した蛍光塗料からなる着色層で乱反射されるが、円
形断面の指示部の表面でのレンズ作用により、着色層は
細幅であっても、指示部の全幅において高輝度で視認さ
れるようになることで、視認性を損なうことなく指示部
の着色層の幅を極めて細くでき、この着色層での吸収に
よる光損失を抑えることができるので、指示部をその先
端まで均一に光輝させることができる。Further, the light introduced from the base end portion is diffusely reflected by the colored layer made of the fluorescent paint formed on the circular back surface of the indicator in the process of proceeding to the tip of the indicator while being totally reflected. By the lens action on the surface of the indicator, even if the colored layer is narrow, it becomes visible with high brightness over the entire width of the indicator, so that the width of the colored layer of the indicator does not deteriorate. Can be made extremely thin, and light loss due to absorption in this colored layer can be suppressed, so that the pointing portion can be made to shine evenly up to its tip.
更に、着色層を形成した裏面が円形の一部分からなっ
ていて乱反射光の多くが指示部の中心に指向され指示部
の着色層の視認に有効に利用されるので、指示部の全幅
で視認される着色層がより高輝度なものとなる。Furthermore, since the back surface on which the colored layer is formed consists of a circular part, most of the diffuse reflection light is directed to the center of the indicator and is effectively used for visual confirmation of the colored layer of the indicator, so that the entire width of the indicator can be visually recognized. The colored layer has a higher brightness.
しかも指示部の断面形状がその全長において単純な円
形となっていてその成形が極めて簡単となっているの
で、視認性が良好で高級感のある指針を安価に得ること
ができるなどの効果を奏する。Moreover, since the cross-sectional shape of the indicating portion is a simple circular shape over its entire length and the molding thereof is extremely simple, it is possible to obtain a pointer having good visibility and a high-class feeling at low cost. .
第１図乃至第４図は本考案の一実施例を示したもので、 第１図は本実施例による指針の要部断面図、 第２図は指針の斜視図、 第３図及び第４図は指針内の光の状態を説明する図、 第５図は本考案の他の実施例を示す要部断面図、 第６図は指針の指示部の変形例を示す図、 第７図は従来の指針を示す要部断面図、 第８図は従来の指針の斜視図である。 １……内機、1a……指針軸、２……文字板、３……導光
板、3b,5b……反射面、５……指針、5a……基端部、5c
……指示部、６……蛍光塗料からなる着色層、７……指
針キャップ、９……プリント基板、10……発光素子、Ｌ
……照射光、Ｌ′……乱反射光。1 to 4 show an embodiment of the present invention. FIG. 1 is a sectional view of a main part of a pointer according to this embodiment, FIG. 2 is a perspective view of the pointer, and FIGS. FIG. 5 is a diagram for explaining the state of light in the pointer, FIG. 5 is a cross-sectional view of an essential part of another embodiment of the present invention, FIG. 6 is a diagram showing a modified example of the indicator portion of the pointer, and FIG. FIG. 8 is a perspective view of a conventional pointer showing a conventional pointer. 1 ... internal unit, 1a ... pointer axis, 2 ... character plate, 3 ... light guide plate, 3b, 5b ... reflective surface, 5 ... pointer, 5a ... base end, 5c
...... Instruction part, 6 ...... Color layer made of fluorescent paint, 7 ...... Pointer cap, 9 ...... Printed circuit board, 10 ...... Light emitting element, L
...... Irradiated light, L '... Diffuse reflected light.
Claims (1)
れ、基端部に導入された上記着色層により乱反射された
光により光輝する指示部を有する指針を、基端部におい
て計器本体の指針軸に固着してなる自動車用計器におい
て、 上記指示部の全長を円形断面の細長円柱状に形成し、上
記着色層を前記指示部の径より小さい細幅にかつその全
長にわたって形成した ことを特徴とする自動車用計器。1. A pointer having a colored layer made of a fluorescent paint formed on the back surface and having an indicator radiated by the light diffusedly reflected by the colored layer introduced at the base end of the instrument main body at the base end. In an automotive instrument fixed to a shaft, the indicator portion is formed in an elongated cylindrical shape having a circular cross section, and the colored layer is formed in a width smaller than the diameter of the indicator portion and over the entire length. Automotive instrument.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990068476U JPH0810780Y2 (en) | 1990-06-29 | 1990-06-29 | Automotive instrument |
| DE4121607A DE4121607C3 (en) | 1990-06-29 | 1991-06-29 | Display device for motor vehicles |
| US08/022,867 US5291851A (en) | 1990-06-29 | 1993-03-01 | Gauge for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990068476U JPH0810780Y2 (en) | 1990-06-29 | 1990-06-29 | Automotive instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0429825U JPH0429825U (en) | 1992-03-10 |
| JPH0810780Y2 true JPH0810780Y2 (en) | 1996-03-29 |
Family
ID=13374777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990068476U Expired - Fee Related JPH0810780Y2 (en) | 1990-06-29 | 1990-06-29 | Automotive instrument |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0810780Y2 (en) |
| DE (1) | DE4121607C3 (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5529014A (en) * | 1992-03-31 | 1996-06-25 | Yazaki Corporation | Car-carried indicating device |
| DE19532618B4 (en) * | 1994-09-30 | 2007-10-18 | Denso Corp., Kariya | Gauge |
| DE19617553A1 (en) * | 1996-05-02 | 1997-11-13 | Bosch Gmbh Robert | Pointer instrument |
| EP0814322B1 (en) * | 1996-06-17 | 2003-12-17 | Robert Bosch Gmbh | Display with having a passive luminous pointer |
| FR2753150B1 (en) * | 1996-09-10 | 1998-12-04 | Magneti Marelli France | IMPROVED LIGHTING MEANS FOR MOTOR VEHICLE DASHBOARD |
| FR2753151B1 (en) * | 1996-09-10 | 1998-12-04 | Magneti Marelli France | DASHBOARD COMPRISING IMPROVED LIGHTING MEANS |
| DE19938336A1 (en) * | 1999-08-13 | 2001-03-15 | Trw Automotive Electron & Comp | Measurement works for a dial-type indicator instrument, especially for use in vehicle type dashboard displays, has a light source for the illuminating needle mounted within the works housing to conserve space and simplify design |
| DE10006058A1 (en) * | 2000-02-10 | 2001-08-16 | Borg Instr Ag | Electroluminescent film for pointer illumination |
| DE102006055949B4 (en) * | 2006-11-24 | 2011-04-14 | Johnson Controls Automotive Electronics Gmbh | Display device with several independent OLEDs |
| JP5360998B2 (en) * | 2010-01-07 | 2013-12-04 | 矢崎総業株式会社 | Meter assembly guide assembly structure |
| DE102013001329B4 (en) * | 2013-01-26 | 2017-02-09 | Audi Ag | Display device for a motor vehicle |
| DE102015222081A1 (en) * | 2015-11-10 | 2017-05-11 | Volkswagen Aktiengesellschaft | Pointer and display device for displaying at least one state variable of a vehicle |
| CN108891261A (en) * | 2018-08-13 | 2018-11-27 | 延锋伟世通电子科技（上海）有限公司 | A kind of concave needle body automobile meter pointer |
| DE102018220700A1 (en) * | 2018-11-30 | 2020-06-04 | Robert Bosch Gmbh | Display device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE650253C (en) * | 1935-09-21 | 1937-09-15 | Nationale Telephon Und Telegra | Luminescent hands for clocks |
| JPS53164166U (en) * | 1977-05-30 | 1978-12-22 | ||
| JPS5444545U (en) * | 1977-09-02 | 1979-03-27 | ||
| JPS5441762A (en) * | 1977-09-09 | 1979-04-03 | Nissan Motor | Revolving pointer type meter |
| JPS5813693Y2 (en) * | 1978-06-26 | 1983-03-17 | 日産自動車株式会社 | meter guideline |
| JPS5739318U (en) * | 1980-08-15 | 1982-03-03 | ||
| DE3425029A1 (en) * | 1983-07-08 | 1985-01-31 | Yazaki Corp., Tokio/Tokyo | Illuminating device in a measuring instrument |
| US4771368A (en) * | 1986-02-17 | 1988-09-13 | Yazaki Corporation | Meter dial illuminating device |
| JPH0742101Y2 (en) * | 1987-05-29 | 1995-09-27 | 矢崎総業株式会社 | Instrument |
-
1990
- 1990-06-29 JP JP1990068476U patent/JPH0810780Y2/en not_active Expired - Fee Related
-
1991
- 1991-06-29 DE DE4121607A patent/DE4121607C3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE4121607C3 (en) | 1997-01-02 |
| DE4121607C2 (en) | 1993-09-02 |
| DE4121607A1 (en) | 1992-01-16 |
| JPH0429825U (en) | 1992-03-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0810780Y2 (en) | Automotive instrument | |
| AU2006242550B2 (en) | Gauge with illuminated dial and pointer | |
| JP2589775Y2 (en) | Display device for vehicles | |
| US5320062A (en) | Illuminated slit pointer device for vehicle instrument | |
| US6663251B2 (en) | Gauge with illuminated dial and pointer | |
| US5291851A (en) | Gauge for automobile | |
| JP2004325299A (en) | Instrument device | |
| JP2006107913A (en) | Lighting device | |
| JP2991328B2 (en) | Instrument pointer lighting device | |
| JP2007139791A (en) | Display device | |
| JPH0686025U (en) | Guidelines for vehicle instruments | |
| JP3536773B2 (en) | Display panel | |
| JP2001099685A (en) | Measuring-instrument apparatus | |
| JP3364883B2 (en) | Self-luminous guidelines | |
| JPH0517609Y2 (en) | ||
| JPH0740174Y2 (en) | Instrument lighting equipment | |
| JP2804938B2 (en) | Instrument pointer device | |
| JP2004226285A (en) | Measuring instrument lighting system | |
| JP2004144583A (en) | Measuring instrument with light-emitting pointer | |
| JP2002228493A (en) | Meter instrument | |
| JP3052868B2 (en) | Instrument lighting device | |
| JP2585067Y2 (en) | Vehicle instrument pointers | |
| JP2000329590A (en) | Pointer structure of measuring instrument | |
| JP2001153688A (en) | Instrument device | |
| JP2548842Y2 (en) | Instrument pointer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |