Indicator member, indicator unit and indicator instrument

a technology of indicator parts and indicators, applied in the field of indicators, can solve the problems of increasing the manufacturing cost of indicators, increasing the number of components, increasing the man-hour for assembly, etc., and achieve the effects of preventing non-uniform brightness, and reducing the risk of affecting the quality of indicators

US20130314891A1Inactive Publication Date: 2013-11-28YAZAKI CORP
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Publication Date
2013-11-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

[Problem to be solved] To provide an inexpensive indicator member which can prevent a dark area from being formed at a location above a reflection part, an indicator unit having the indicator member and an indicator instrument having the indicator unit.[Solution to Problem] A hollow reflection part provided to an indicator part of an indicator main body of a light-emitting indicator includes a plurality of partial reflection parts having at least an pointing direction reflection face, a rear end direction reflection face and a corner formed at an intersection of the pointing direction reflection face and the rear end direction reflection face and arranged at a location opposed to the base part. The corners of the respective partial reflection parts adjacent to each other are displaced in a pointing direction or in a rear end direction.
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Description

TECHNICAL FIELD

[0001] (1.1), (2.1), (3.1)The present invention relates to an indicator member made of translucent material which becomes luminous by receiving the light from a light source, an indicator unit having said indicator member and an indicator instrument having said indicator unit.

[0002] (4.1)The present invention relates to an indicator member arranged to guide the light from a translucent indicator shaft to be luminous, an indicator unit having said indicator member and an indicator instrument having said indicator unit.BACKGROUND ART

[0003] (1.2)In general, a vehicle is mounted with a vehicle display device arranged to display a measured value such as vehicle speed and engine revolution number, and in many vehicles said vehicle display device is constituted of an indicator instrument. The indicator instrument includes a meter case which houses a dial plate having a surface provided with indexes such as scale marks and numbers, letters or symbols, an indicator unit positione...

Examples

Embodiment Construction

[0242](1.8)

In the following, a vehicle display device as one embodiment of an indicator instrument according to the present invention is explained in reference to FIGS. 1 through 4B.

[0243]In FIG. 1, a vehicle display device 1 is a speed meter which displays a vehicle speed, for example. The vehicle display device 1 includes a dial plate 2 having a surface 2a (i.e. a surface which is visible by a viewer) provided with indexes such as scale marks and numbers, letters or symbols, a light-emitting indicator (hereinafter called an indicator) 3 as an indicator unit positioned on the surface 2a of the dial plate 2, a drive device 4 having an indicator shaft 14 including a distal end at which the indicator 3 is attached, a circuit board 5 including a circuit pattern, an electronic component and such and including the drive device 4 fixed to the circuit board 5, a plurality of light sources 6 provided at the circuit board 5, a case 7 having a tapered portion 7a formed from a central portion ...