JPH0539459Y2 - - Google Patents
Info
- Publication number
- JPH0539459Y2 JPH0539459Y2 JP3192988U JP3192988U JPH0539459Y2 JP H0539459 Y2 JPH0539459 Y2 JP H0539459Y2 JP 3192988 U JP3192988 U JP 3192988U JP 3192988 U JP3192988 U JP 3192988U JP H0539459 Y2 JPH0539459 Y2 JP H0539459Y2
- Authority
- JP
- Japan
- Prior art keywords
- light guide
- light
- guide plate
- dial
- plate
- 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 - Lifetime
Links
- 238000005286 illumination Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001579 optical reflectometry Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
Landscapes
- Details Of Measuring Devices (AREA)
- Details Of Measuring And Other Instruments (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、特に導光板の構造を改善した透過照
明式計器に関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention particularly relates to a transmitted illumination type instrument in which the structure of the light guide plate is improved.
第２図は、例えば自動車に設備される従来の透
過照明式計器における文字板の透過照明構造を示
すものであつて、１はその計器機械体、２はその
機械体１の前面部に取付けられている透過照明式
文字板であつて、この透過照明式文字板２の裏面
には、導光板３が重ね合せられており該導光板３
は光源４からの光を受けて面発光し、これによ
り、文字板２が透過照明されるものである。な
お、この導光板３の裏面には、白色樹脂シート５
が添着されている。このように構成されている透
過照明式計器にあつて、その導光板３及び文字板
２を機械体１に取付けるための手段としては、そ
の導光板３に、取付ねじ６を挿通せしめるための
透孔７及び取付ねじ６の頭部が位置される凹部８
を形成し、この透孔７及び凹部８に挿通される取
付ねじ６によつて、上記の導光板３を機械体１に
固定することができるものである。
FIG. 2 shows a transilluminated structure of a dial in a conventional transilluminated instrument installed in a car, for example, in which 1 is the instrument body, 2 is attached to the front part of the instrument body 1. It is a transilluminated type dial plate, and a light guide plate 3 is superimposed on the back surface of this transmissive illumination type dial plate 2.
receives light from the light source 4 and emits surface light, whereby the dial 2 is illuminated through transmission. Note that a white resin sheet 5 is provided on the back side of the light guide plate 3.
is attached. In the transmitted illumination type instrument configured in this way, the means for attaching the light guide plate 3 and the dial plate 2 to the machine body 1 is to install a transparent plate through which the mounting screws 6 can be inserted into the light guide plate 3. A recess 8 in which the hole 7 and the head of the mounting screw 6 are located.
The above-mentioned light guide plate 3 can be fixed to the machine body 1 by means of mounting screws 6 inserted through the through holes 7 and the recesses 8.
ところが、この導光板３の機械体１への取付手
段にあつては、その導光板３に取付ねじ６を挿通
せしめるための透孔７及び凹部８が形成されてい
るために、この透孔７、凹部８及び取付ねじ６が
照明むらを起す原因となつていた。また導光体３
の裏面に添着した白色樹脂シートは、遮光性が弱
いために、光源４からの一部の直射光が、その白
色樹脂シートを透過したり、あるいは、導光板３
内の導光の一部が、その白色樹脂シート５を透過
して漏光される等のことで、文字板２の照明むら
が生じるといつた不具合があつた。
However, with regard to the means for attaching the light guide plate 3 to the machine body 1, since the light guide plate 3 is formed with a through hole 7 and a recess 8 through which the mounting screw 6 is inserted, the through hole 7 is , the recess 8 and the mounting screw 6 caused uneven illumination. Also, the light guide 3
Since the white resin sheet attached to the back surface of the light guide plate 3 has a weak light shielding property, some of the direct light from the light source 4 may pass through the white resin sheet, or the light guide plate 3 may
There was a problem in that part of the light guide inside the dial passed through the white resin sheet 5 and was leaked, resulting in uneven illumination of the dial 2.
本考案はかかる従来の不具合を解消するために
なされたもので、透光性の文字板の裏面に、光源
の光を平面的に誘導する導光板を備えた計器にお
いて、螺子の頭部が収容される深さの凹部を備え
た遮光性の支持板を、前記螺子によつて計器機械
体に固定し、該支持板上に前記導光板及び文字板
を支持した透過照明式計器を提供することにあ
る。
The present invention was made in order to eliminate such conventional problems, and the head of the screw is accommodated in an instrument equipped with a light guide plate that guides light from a light source in a plane on the back side of a translucent dial. A light-shielding support plate having a recessed portion with a depth of It is in.
従つてこの透過照明式計器によれば、取付ねじ
が導光板を貫通位置されることがないので、導光
障害物がなくなり、これにより文字板の均一照明
が可能となる。また導光板の裏面には、金属製等
の遮光性に優れた支持板が設けられていることか
ら、この支持板により導光板からの漏光、または
導光板への直射入光等がなく、これによつても文
字板の均一照明が可能となる。
Therefore, according to this transmissive illumination type instrument, since the mounting screws are not positioned through the light guide plate, there are no light guide obstacles, thereby making it possible to uniformly illuminate the dial. In addition, since a support plate made of metal or the like with excellent light-shielding properties is provided on the back of the light guide plate, this support plate prevents light from leaking from the light guide plate or direct light entering the light guide plate. This also enables uniform illumination of the dial.
以下に本考案を第１図に示す実施例に基いて詳
細に説明する。
The present invention will be explained in detail below based on the embodiment shown in FIG.
１１は計器機械体であつて、この計器機械体１
１には金属製又は光反射性のよい表面加工を施し
た支持板１２が取付ねじ１３により固定されてい
る。この支持板１２には、該支持板１２を機械体
１１に取付けるための取付ねじ１３を挿通するた
めの透孔１４と、取付ねじ１３の頭部が入り込む
凹部１５が形成されている。１６は、支持板１２
上に重ね合せられて支持される導光板であつて、
この導光板１６は従来例で示したと同様に光源４
からの光を入光して、その導光板１６の全面が均
一に発光されるものである。１７はその導光板１
６の表面に重合される透光性文字板である。 11 is a meter mechanical body, and this meter mechanical body 1
A support plate 12 made of metal or surface-treated to have good light reflectivity is fixed to the machine body 11 by means of mounting screws 13. The support plate 12 is formed with through holes 14 for inserting the mounting screws 13 for mounting the support plate 12 to the machine body 11, and recesses 15 into which the heads of the mounting screws 13 fit.
A light guide plate supported by being superimposed on the
This light guide plate 16 is connected to the light source 4 in the same manner as in the conventional example.
The light from the light guide plate 16 enters the light guide plate 16, and the entire surface of the light guide plate 16 is uniformly illuminated.
6 is a light-transmitting dial plate that is laminated on the surface of the dial plate.
このように本実施例にあつては、導光板１６
は、金属等の反射性の良好なる支持板１２に支持
されていることから、その導光板１６内を通過す
る光は、その支持板１２に反射されながら進行
し、支持板１２を透光することはないので、導光
板１６内へ導入された光によつて文字板１７の全
面が均一に透過照明される効果がある。また光源
４より発光して文字板１７方向へ照射されようと
する直射光ａは、前記遮光性の支持板１２に遮光
されて、導光板１６、文字板１７を直接に透過す
ることはないので、その直射光ａによる発光むら
が阻止できる効果がある。さらに、導光板１６に
は、導光を阻害する取付ねじや透孔が貫通又は位
置されることがないので、導光板１６内の導光が
円滑であつて、その導光板１６の全面を均一に発
光表示させることができる効果もある。
In this way, in this embodiment, the light guide plate 16
Since the light guide plate 16 is supported by a support plate 12 made of metal or the like with good reflectivity, light passing through the light guide plate 16 travels while being reflected by the support plate 12 and is transmitted through the support plate 12. Therefore, the entire surface of the dial 17 is uniformly transmitted and illuminated by the light introduced into the light guide plate 16. Further, the direct light a emitted from the light source 4 and attempting to be irradiated in the direction of the dial 17 is blocked by the light-shielding support plate 12 and does not directly pass through the light guide plate 16 and the dial 17. This has the effect of preventing uneven light emission caused by the direct light a. Furthermore, since the light guide plate 16 is not penetrated or placed with any mounting screws or through holes that would obstruct light guide, the light guide within the light guide plate 16 is smooth and uniform over the entire surface of the light guide plate 16. It also has the effect of making it possible to display a light-emitting display.
第１図は本考案よりなる透過照明式計器の実施
例を示した説明図、第２図は従来例の説明図であ
る。
１１……計器機械体、１２……支持板、１３…
…取付ねじ、１４……取付孔、１５……凹部、１
６……導光板、１７……文字板。
FIG. 1 is an explanatory diagram showing an embodiment of a transmitted illumination type instrument according to the present invention, and FIG. 2 is an explanatory diagram of a conventional example. 11... Instrument machine body, 12... Support plate, 13...
...Mounting screw, 14...Mounting hole, 15...Recess, 1
6...Light guide plate, 17...Dial board.
Claims (1)
的に誘導する導光板１６を備えた計器において、
螺子１３の頭部が収容される深さの凹部１５を備
えた遮光性の支持板１２を、前面螺子１３によつ
て計器機械体１１に固定し、該支持板１２上に前
記導光板１６及び文字板１７を支持させたことを
特徴とする透過照明式計器。 In an instrument equipped with a light guide plate 16 that guides light from a light source in a plane on the back side of a transparent dial 17,
A light-shielding support plate 12 having a recess 15 deep enough to accommodate the head of the screw 13 is fixed to the instrumentation machine body 11 by the front screw 13, and the light guide plate 16 and the light guide plate 16 are mounted on the support plate 12. A transmitted illumination type instrument characterized by supporting a dial plate 17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3192988U JPH0539459Y2 (en) | 1988-03-10 | 1988-03-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3192988U JPH0539459Y2 (en) | 1988-03-10 | 1988-03-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01136418U JPH01136418U (en) | 1989-09-19 |
| JPH0539459Y2 true JPH0539459Y2 (en) | 1993-10-06 |
Family
ID=31258157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3192988U Expired - Lifetime JPH0539459Y2 (en) | 1988-03-10 | 1988-03-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0539459Y2 (en) |
-
1988
- 1988-03-10 JP JP3192988U patent/JPH0539459Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01136418U (en) | 1989-09-19 |
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