JP3428866B2 - Instrument lighting structure - Google Patents
Instrument lighting structureInfo
- Publication number
- JP3428866B2 JP3428866B2 JP20806797A JP20806797A JP3428866B2 JP 3428866 B2 JP3428866 B2 JP 3428866B2 JP 20806797 A JP20806797 A JP 20806797A JP 20806797 A JP20806797 A JP 20806797A JP 3428866 B2 JP3428866 B2 JP 3428866B2
- Authority
- JP
- Japan
- Prior art keywords
- ray tube
- cathode ray
- cold cathode
- lighting structure
- fixing ring
- 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】本発明は、冷陰極線管を使用
した計器照明構造に関し、詳しくは、冷陰極線管の装着
構造の改良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instrument lighting structure using a cold cathode ray tube, and more particularly to an improvement of a structure for mounting a cold cathode ray tube.
【０００２】[0002]
【従来の技術】従来、文字板照明用の冷陰極線管を計器
等に取り付けるには、図５に示すように、二股状、リン
グ状、あるいは半円形状等の留め具２６等により冷陰極
線管１０をパネル２７に直接取り付けるようにしたもの
（例えば特開平８−１８９８４４号公報、特開平８−２
８６１８７号公報参照）、あるいは、別の反射体で冷陰
極線管をカバーし、この反射体と冷陰極線管との間に弾
性リングを介在させたもの（例えば特開平８−１５２５
２８号公報参照）等がある。2. Description of the Related Art Conventionally, as shown in FIG. 5, a cold-cathode ray tube for illuminating a dial is attached to a measuring instrument or the like by a fastener 26 having a bifurcated shape, a ring shape, or a semicircular shape. 10 is directly attached to the panel 27 (for example, JP-A-8-189844 and JP-A-8-2).
No. 86187), or another cold reflector is used to cover the cold cathode ray tube, and an elastic ring is interposed between the reflector and the cold cathode ray tube (for example, JP-A-8-1525).
28).
【０００３】[0003]
【発明が解決しようとする課題】冷陰極線管は直径が通
常数ｍｍ程度の細管であるので、冷陰極線管１０を留め
具２６に直接取り付けると、取り付け作業中に冷陰極線
管１０の折損を起こし易い。また、反射体を弾性リング
を介して取り付ける構造では、反射体の固定位置にバラ
ツキが生じやすく、反射体を精度よく取り付けできない
という問題がある。Since the cold-cathode ray tube is usually a thin tube having a diameter of about several millimeters, if the cold-cathode ray tube 10 is directly attached to the fastener 26, the cold-cathode ray tube 10 will be broken during the attaching work. easy. Further, in the structure in which the reflector is attached via the elastic ring, there is a problem in that the fixed position of the reflector is likely to vary, and the reflector cannot be attached accurately.
【０００４】本発明は上述の点に着目してなされたもの
で、冷陰極線管の取り付け作業中の折損をなくし、取り
付け作業を簡単にかつ精度よく行えるようにした計器照
明構造を提供することを目的とする。The present invention has been made in view of the above points, and it is an object of the present invention to provide an instrument lighting structure capable of eliminating the breakage during the mounting work of the cold cathode ray tube and enabling the mounting work to be performed easily and accurately. To aim.
【０００５】[0005]
【課題を解決するための手段】前記目的を達成するた
め、請求項１記載の発明は、文字板の裏面に光導板が設
けられ、該光導板の端面に配置された冷陰極線管により
前記文字板を照明する計器照明構造であって、前記冷陰
極線管の外周に耐熱性の透明樹脂からなる固定リングを
嵌め込み、冷陰極線管の取付部に固定される耐熱性の透
明樹脂からなる固定キャップを該固定リングの外周に密
着させて冷陰極線管を固定したことを特徴とするもので
ある。In order to achieve the above object, the invention according to claim 1 is characterized in that a light plate is provided on the back surface of the dial plate, and the character is formed by a cold cathode ray tube arranged at an end face of the light plate. An instrument lighting structure for illuminating a plate, in which a fixing ring made of a heat-resistant transparent resin is fitted on the outer periphery of the cold cathode ray tube, and a fixing cap made of a heat-resistant transparent resin fixed to a mounting portion of the cold cathode ray tube is attached. The cold cathode ray tube is fixed to the outer circumference of the fixing ring by being closely attached.
【０００６】このため、請求項１記載の発明では、冷陰
極線管は外周に密着する固定リングを介して固定キャッ
プで取付部に固定されるので、冷陰極線管の折損がな
く、組付け作業も容易であり、耐振動性も良好である。
また、耐熱性の固定リング、固定キャップ、及び冷陰極
線管が相互に密着した構造になっているので効果的に放
熱ができる。その上、固定リング及び固定キャップは透
明樹脂により形成したので、冷陰性線管からの出射光を
遮断することなく透過させて照明むらを防ぐことができ
る。Therefore, according to the first aspect of the invention, since the cold cathode ray tube is fixed to the mounting portion by the fixing cap through the fixing ring that is in close contact with the outer periphery, the cold cathode ray tube is not broken and the assembling work is also performed. It is easy and has good vibration resistance.
Further, since the heat-resistant fixing ring, the fixing cap, and the cold cathode ray tube are in close contact with each other, heat can be effectively radiated. In addition, since the fixing ring and the fixing cap are formed of transparent resin, it is possible to prevent the illumination unevenness by transmitting the light emitted from the cold negative ray tube without blocking it.
【０００７】また、請求項２記載の発明は、請求項１記
載の計器照明構造であって、前記固定キャップは略Ｕ字
状の両端に係止爪が形成され、該係止爪を前記取付部の
結合孔に係止させたことを特徴とするものである。The invention according to claim 2 is the instrument lighting structure according to claim 1, wherein the fixed cap has locking claws formed at both ends of the substantially U shape, and the locking claws are attached to the mounting part. It is characterized by being locked in the coupling hole of the section.
【０００８】このため、請求項２記載の発明では、固定
キャップは係止爪を結合孔に差し込むだけでワンタッチ
で取り付けできる。Therefore, according to the second aspect of the invention, the fixed cap can be attached with one touch by simply inserting the locking claw into the coupling hole.
【０００９】[0009]
【００１０】[0010]
【００１１】[0011]
【発明の実施の形態】以下、本発明の実施の形態を図１
および図２に基づいて説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIG.
And it demonstrates based on FIG.
【００１２】図１は、本発明に係る計器照明構造が設け
られた計器の正面図、図２は要部の分解斜視図を示して
いる。この計器１は、最前面に文字板２、その裏側に光
導板３、その裏側にはカバー４が設けられている。カバ
ー４には凸部５が設けられ、この凸部５を光導板３の凹
部６に嵌め込んでいる。凸部５の後方にはランプ（図示
せず）が配置され、凸部５から出る光で文字板２の例え
ば矢印表示７を照明するようになっている。カバー４の
裏面には配線基板（図示せず）が取り付けられている。FIG. 1 is a front view of an instrument provided with an instrument illumination structure according to the present invention, and FIG. 2 is an exploded perspective view of essential parts. This instrument 1 is provided with a dial 2 on the forefront, a light guide plate 3 on the back side thereof, and a cover 4 on the back side thereof. A convex portion 5 is provided on the cover 4, and the convex portion 5 is fitted into the concave portion 6 of the light guide plate 3. A lamp (not shown) is arranged behind the convex portion 5, and the light emitted from the convex portion 5 illuminates, for example, an arrow mark 7 on the dial plate 2. A wiring board (not shown) is attached to the back surface of the cover 4.
【００１３】文字板２の裏面であって光導板３の上端面
に沿うように冷陰極線管ユニット８が取り付けられてい
る。冷陰極線管ユニット８は、ホルダ９と、このホルダ
９に組付けられた冷陰極線管１０とよりなる。A cold cathode ray tube unit 8 is attached to the rear surface of the dial plate 2 along the upper end surface of the light guide plate 3. The cold cathode ray tube unit 8 includes a holder 9 and a cold cathode ray tube 10 assembled in the holder 9.
【００１４】図２に示すように、ホルダ９は、上板部９
ａと側板部９ｂとが略直角に連接された断面Ｌ字形状の
横長状のもので、側板部９ｂの途中に２箇所の取付片１
２，１２が形成され、この取付片１２をカバー４に設け
られた止め部１３にねじ止めするようになっている。側
板部９ｂの裏面にはフレキシブル配線板（ＦＰＣ）１４
が取り付けられ、このフレキシブル配線板１４は引出し
部１５、コネクタ１６を介してカバー４の裏面側の配線
板に接続されている。As shown in FIG. 2, the holder 9 includes an upper plate portion 9
a and a side plate portion 9b are connected to each other at a substantially right angle and have an L-shaped laterally long shape, and two mounting pieces 1 are provided in the middle of the side plate portion 9b.
2 and 12 are formed, and the mounting piece 12 is screwed to a stopper portion 13 provided on the cover 4. A flexible wiring board (FPC) 14 is provided on the back surface of the side plate portion 9b.
The flexible wiring board 14 is connected to the wiring board on the rear surface side of the cover 4 via the drawer portion 15 and the connector 16.
【００１５】冷陰極線管１０は、両端が弾性絶縁体１７
で閉塞され、中間は側板部９ｂに形成された凸部１８上
に固定リング２５を介して固定キャップ１９で固定され
ている。The cold cathode ray tube 10 has elastic insulators 17 at both ends.
The intermediate portion is fixed to the convex portion 18 formed on the side plate portion 9b with the fixing cap 19 via the fixing ring 25.
【００１６】図３および図４において、固定リング２５
は、シリコン樹脂等の透明な耐熱性樹脂で構成され、冷
陰極線管１０の外周に密着して嵌め込まれている。固定
キャップ１９はポリカーボネート樹脂等の透明な耐熱性
樹脂で構成された略Ｕ字形状のもので、両端に切欠段部
１９ａを介して係止爪１９ｂが形成されている。凸部１
８には一対の結合孔２０が形成されており、係止爪１９
ｂ、１９ｂを近づける方向に縮小させた状態で結合孔２
０に差し込むと係止爪１９ｂが結合孔２０に係止され、
図３および図４に示すように固定リング２５を密着状態
に挟み込んだ状態で冷陰極線管１０を固定キャップ１９
で固定する。3 and 4, the fixing ring 25
Is made of a transparent heat-resistant resin such as a silicone resin, and is fitted in close contact with the outer periphery of the cold cathode ray tube 10. The fixed cap 19 is a substantially U-shaped member made of a transparent heat-resistant resin such as polycarbonate resin, and has locking claws 19b formed at both ends thereof with a notch step portion 19a. Convex part 1
8, a pair of coupling holes 20 are formed, and the locking claw 19
b and 19b are contracted in the direction of approaching each other and the coupling hole 2
When it is inserted into 0, the locking claw 19b is locked in the coupling hole 20,
As shown in FIGS. 3 and 4, the cold cathode ray tube 10 is fixed to the fixing cap 19 with the fixing ring 25 sandwiched between them.
Fix with.
【００１７】側板部９ｂにはサーミスタ２６が取り付け
られている。冷陰極線管１０の一端側には弾性絶縁体１
７を介してリード線２１が導出され、このリード線２１
の先端にはコネクタ２２が取り付けられている。サーミ
スタ２６はフレキシブル配線板１４に電気的に接続され
ている。A thermistor 26 is attached to the side plate portion 9b. An elastic insulator 1 is provided on one end of the cold cathode ray tube 10.
The lead wire 21 is led out through the
A connector 22 is attached to the tip of the . Sa over Mi <br/> Star 26 is electrically connected to the flexible wiring board 14.
【００１８】上述のように構成された冷陰極線管ユニッ
ト８は、図１に示すように、計器１の上縁部に配置し、
ホルダ９の取付片１２をカバー４の止め部１３にねじ止
めする。これにより、冷陰極線管１８および上板部９ａ
は光導板３の上部の端面に沿って配置され、上板部９ａ
の内面により冷陰極線管１０の光を光導板３に向けて反
射する。この取付状態においてはホルダ９の側板部９ｂ
に対向する側面は内面に白色塗料を施した文字板２で覆
われて、光導板３の端面に対向する側を開口したコ字形
断面を形成している。The cold cathode ray tube unit 8 constructed as described above is arranged at the upper edge of the instrument 1 as shown in FIG.
The mounting piece 12 of the holder 9 is screwed to the stopper 13 of the cover 4. Thereby, the cold cathode ray tube 18 and the upper plate portion 9a
Are arranged along the upper end surface of the light guide plate 3, and the upper plate portion 9a
The light of the cold cathode ray tube 10 is reflected toward the light guide plate 3 by the inner surface of the. In this attached state, the side plate portion 9b of the holder 9 is
The side surface opposite to is covered with a dial 2 having an inner surface coated with white paint, forming a U-shaped cross section with the side facing the end surface of the light guide plate 3 open.
【００１９】以上のように、冷陰極線管１０は外周に固
定された固定リング２５を介して固定キャップ１９でホ
ルダ９に固定したので、冷陰極線管１０は外周に密着す
る固定リング２５を介して固定キャップ１９でホルダ９
に固定され、冷陰極線管１０の折損がなく、組付け作業
も容易であり、耐振動性も良好である。また、耐熱性の
固定リング２５および固定キャップ１９を介して効果的
に放熱ができると共に、固定リング２５、固定キャップ
１９ともに透明樹脂を使用しているので、冷陰極線管１
０の照明効果を減ずることがない。As described above, since the cold cathode ray tube 10 is fixed to the holder 9 by the fixing cap 19 via the fixing ring 25 fixed to the outer circumference, the cold cathode ray tube 10 is fixed to the outer circumference by the fixing ring 25 which is in close contact with the outer circumference. Holder 9 with fixed cap 19
, The cold cathode ray tube 10 is not broken, the assembling work is easy, and the vibration resistance is good. Further, heat can be effectively dissipated through the heat-resistant fixing ring 25 and the fixing cap 19, and since the fixing ring 25 and the fixing cap 19 are made of transparent resin, the cold cathode ray tube 1
The lighting effect of 0 is not diminished.
【００２０】なお、上記実施の形態では、冷陰極線管１
０をホルダ９に取り付ける例を説明したが、冷陰極線管
１０をカバー４に直接取り付ける場合にも本発明の構成
は適用可能である。In the above embodiment, the cold cathode ray tube 1
Although the example in which 0 is attached to the holder 9 has been described, the configuration of the present invention can be applied to the case where the cold cathode ray tube 10 is directly attached to the cover 4.
【００２１】[0021]
【発明の効果】以上、詳述したように、請求項１記載の
発明によれば、冷陰極線管の外周に耐熱性の透明樹脂か
らなる固定リングを嵌め込み、冷陰極線管の取付部に固
定される耐熱性の透明樹脂からなる固定キャップを固定
リングの外周に密着させて固定したので、照明効果の低
下を招くこともなく、かつ冷陰極線管の折損がなく、組
付け作業も容易であり、耐振動性も良好になる。また、
耐熱性の固定リングおよび固定キャップを介して効果的
に放熱ができる。As described above in detail, according to the invention of claim 1, a fixing ring made of a heat-resistant transparent resin is fitted on the outer periphery of the cold cathode ray tube and fixed to the mounting portion of the cold cathode ray tube. Since the fixing cap made of heat-resistant transparent resin is fixed by closely contacting the outer periphery of the fixing ring, the illumination effect is not deteriorated, the cold cathode ray tube is not broken, and the assembly work is easy. Vibration resistance is also improved. Also,
Heat can be effectively dissipated via the heat-resistant fixing ring and fixing cap.
【００２２】また、請求項２記載の発明によれば、固定
キャップは略Ｕ字状の両端の係止爪を取付部の結合孔に
係止させるようにしたので、請求項１記載の発明の効果
に加えて、固定キャップは係止爪を結合孔に差し込むだ
けでワンタッチで取り付けできる。According to the second aspect of the invention, the fixed cap is configured so that the locking claws at both ends of the substantially U shape are locked in the coupling holes of the mounting portion. In addition to the effect, the fixed cap can be attached with one touch simply by inserting the locking claw into the coupling hole.
【００２３】[0023]
【図１】本発明の計器照明構造の一実施の形態を示す正
面図である。FIG. 1 is a front view showing an embodiment of an instrument lighting structure of the present invention.
【図２】図１の計器照明構造の分解斜視図である。2 is an exploded perspective view of the instrument lighting structure of FIG. 1. FIG.
【図３】図１の計器照明構造の要部の斜視図である。FIG. 3 is a perspective view of a main part of the instrument lighting structure of FIG.
【図４】図３の要部の縦断側面図である。FIG. 4 is a vertical side view of a main part of FIG.
【図５】従来の計器照明構造を示す斜視図である。FIG. 5 is a perspective view showing a conventional instrument lighting structure.
１ 計器 ２ 文字板 ３ 光導板 ４ カバー（取付部） ９ ホルダ（取付部） １０ 冷陰極線管 １４ フレキシブル配線板 １９ 固定キャップ １９ｂ 係止爪 ２０ 結合孔 ２５ 固定リング 1 instrument 2 dial 3 Light plate 4 Cover (mounting part) 9 Holder (mounting part) 10 Cold cathode ray tube 14 Flexible wiring board 19 Fixed cap 19b locking claw 20 coupling holes 25 fixing ring
Claims (2)
導板の端面に配置された冷陰極線管により前記文字板を
照明する計器照明構造であって、 前記冷陰極線管の外周に耐熱性の透明樹脂からなる固定
リングを嵌め込み、冷陰極線管の取付部に固定される耐
熱性の透明樹脂からなる固定キャップを該固定リングの
外周に密着させて冷陰極線管を固定したことを特徴とす
る計器照明構造。1. An instrument lighting structure in which a light guide plate is provided on the back surface of a dial plate, and the dial plate is illuminated by a cold cathode ray tube arranged at an end face of the light plate. Characterized in that the cold cathode ray tube is fixed by fitting a fixing ring made of a transparent transparent resin, and a fixing cap made of a heat-resistant transparent resin fixed to the mounting portion of the cold cathode ray tube is adhered to the outer periphery of the fixing ring. Instrument lighting structure to be used.
止爪が形成され、該係止爪を前記取付部の結合孔に係止
させたことを特徴とする請求項１記載の計器照明構造。2. The measuring instrument according to claim 1, wherein the fixing cap has locking claws formed at both ends of the substantially U-shape, and the locking claws are locked in the coupling holes of the mounting portion. Lighting structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20806797A JP3428866B2 (en) | 1997-08-01 | 1997-08-01 | Instrument lighting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20806797A JP3428866B2 (en) | 1997-08-01 | 1997-08-01 | Instrument lighting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1151713A JPH1151713A (en) | 1999-02-26 |
| JP3428866B2 true JP3428866B2 (en) | 2003-07-22 |
Family
ID=16550105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20806797A Expired - Fee Related JP3428866B2 (en) | 1997-08-01 | 1997-08-01 | Instrument lighting structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3428866B2 (en) |
-
1997
- 1997-08-01 JP JP20806797A patent/JP3428866B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1151713A (en) | 1999-02-26 |
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