| 摘要 |
PROBLEM TO BE SOLVED: To provide an instrument device to which a component that meets its specification can be correctly fitted even in the case where members have the same shape.SOLUTION: An instrument device comprises: a case body made of synthetic resin; a conductor 50 arranged on the front of the case body and configured to optically guide a light ray emitted from a light source; a display plate 20 capable of transmitting the emitted light ray guided by the optical guide 50 and illuminating an index part from a rear side; an upper case arranged on the front side of the display plate 20 and having a front at least of which is made of a resin material that can be through-viewed; and a circuit board on which the light source is mounted. In this instrument device, the conductor 50 is provided with a mark M determined for each model. Also, for this mark M, the display plate 20 is provided with a mark display window part 23 for erroneous combination prevention, in a place determined for each model of the display plate 20. |
