JPH0447616U

JPH0447616U -

Info

Publication number: JPH0447616U
Application number: JP9095090U
Authority: JP
Priority date: 1990-08-30
Filing date: 1990-08-30
Publication date: 1992-04-22

Description

[Brief explanation of the drawing]

図面は本考案の実施例を示すもので、第１図は
第１実施例の概略構成を示す分解斜視図、第２図
は第１図の導光板を装着した要部の拡大平面図、
第３図は第１図の取付状態の断面図、第４図は第
２実施例の導光板を装着した要部の拡大平面図、
第５図は第１実施例若しくは第２実施例に適用し
得る第１実施態様例の要部拡大断面図、第６図は
第１実施例若しくは第２実施例に適用し得る第２
実施態様例の要部拡大断面図、第７図は第１実施
例若しくは第２実施例に適用し得る第３実施態様
例の要部拡大断面図である。１……計器ケース、２……計器本体、３……照
明灯、４……導光板、５……表示板、５Ａ……表
示部、６……光路案内壁、７……空隙部、８……
反射面。 The drawings show an embodiment of the present invention, and FIG. 1 is an exploded perspective view showing the schematic structure of the first embodiment, and FIG. 2 is an enlarged plan view of the main part with the light guide plate of FIG. 1 attached.
FIG. 3 is a sectional view of the installed state shown in FIG. 1, and FIG. 4 is an enlarged plan view of the main part with the light guide plate of the second embodiment attached.
FIG. 5 is an enlarged sectional view of a main part of a first embodiment that can be applied to the first embodiment or the second embodiment, and FIG. 6 is a second embodiment that can be applied to the first embodiment or the second embodiment.
FIG. 7 is an enlarged sectional view of a main part of a third embodiment that can be applied to the first embodiment or the second embodiment. DESCRIPTION OF SYMBOLS 1... Instrument case, 2... Instrument body, 3... Lighting light, 4... Light guide plate, 5... Display board, 5A... Display part, 6... Light path guide wall, 7... Cavity part, 8 ……
reflective surface.

Claims

[Scope of utility model registration request]

A plurality of instrument bodies are suitably disposed within the instrument case, illumination lights for illuminating the instruments are disposed, and a light guide plate is disposed above the instrument body to guide the illumination light beams of the illumination lights. , there is a scale/scale on this light guide plate.
An indicating instrument in which display boards with display parts such as characters and symbols are arranged one on top of the other, and the illumination light from the illumination lamp passes through and illuminates the display part of the display board through the light guide plate. In the lighting device, an optical path guide wall is erected at an appropriate position in the instrument case, and is positioned at least outwardly from the display section of the display board to guide the illumination light beam of the illumination lamp inward. A gap is provided between the upper end of the guide wall and the back surface of the light guide plate, and an illumination beam is guided to at least a portion of the light guide plate toward the center of the light guide plate along the inner surface of the light guide wall. An instrument display board illumination device characterized by being provided with a reflective surface.