JP2539728Y2 - Instrument panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an instrument panel provided in, for example, a construction machine.

[Conventional technology]

For example, as a conventional instrument panel structure used for a construction machine, there is a structure as shown in FIGS.
That is, the instrument panel 1 includes a meter movement 2 such as a thermometer and a fuel gauge, a movement housing portion 3 housing the meter movement 2, and a switch housing portion 5 housing each operation switch 4 such as a wiper switch and a lighting switch. A lower housing 6, a transparent upper housing 7 attached to the opening of the lower housing, and a printed wiring board 8 attached to the back of the lower housing 6. 3
And the switch housing 5 are partitioned by a partition wall 9. The meter movement 2 has a dial 10 that is illuminated by transmission, a pointer 11 that rotates along the dial 10, and a dial 12 that is attached to the back of the dial 10 and emits light from a lamp 12.
A light guide 13 that guides light is attached to the back of 10. The switch 4 in the switch accommodating portion 5 is connected to the printed wiring board 8 by a lead wire 14, and an operation knob 15 is disposed at a front portion of the switch 4. Further, on the back surface of the upper housing 7 which covers the switch accommodating portion, an illuminating means 17 such as a light emitting diode for transmitting and displaying a display character 16 provided near the operation knob 15 is arranged. Reference numeral 18 denotes a light-shielding layer on which the display characters 16 having transmissive light are applied.

[Problems to be solved by the invention]

In the case of such a conventional instrument panel, the instrument dial
In addition to the lamp 12 for illuminating the transmission light 10, the illumination means 17 such as a light-emitting diode for transmitting and illuminating the display characters 16 around the switch operation knob 15 must be provided. Since expensive lighting means must be provided, the instrument panel becomes expensive. Further, there is a problem that a space for installing the light emitting diode is required, and the instrument panel is enlarged.

[Means for solving the problem]

The present invention has been made in view of such a conventional problem, and a part of illumination light by an illumination lamp for transmitting and illuminating an instrument dial is provided with a display character 16 provided around a switch operation knob. By guiding the light to the back surface, the illumination lamp allows both the display character 16 and the instrument dial to be transmitted and illuminated, so that the equipment of the light emitting diode can be omitted and the economic efficiency can be improved. To provide an instrument panel.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to an embodiment shown in FIG. 1. The same parts of the structure of the present embodiment and the structure described in the conventional example will be denoted by the same reference numerals used in the conventional example. The description of the same structural parts is omitted.

An upper housing 20 is attached to the front opening of the lower housing 6. The upper housing 20 is formed of a transparent material. The transparent upper housing 20 has an integral structure for closing the openings of the movement accommodating section 3 and the switch accommodating section 5, respectively.
When the light receiving portion 21 is attached to the lower housing 6, a light incident portion 21 located in the movement accommodating portion 3 is integrally formed. In addition, the upper housing 20 receives the light introduced from the light incident portion 21 in the finisher direction, that is, the translucent display characters.
Reflector for guiding light to the back side of the light-shielding layer 18 provided with 16
22 is formed.

In the instrument panel configured as described above, for example, when the lamp 12 is
Part of the light from 12 reaches the back surface of the dial 10 through the light guide 13, and the dial 10 is transmitted and illuminated at the same time as the lamp.
The other part of the light by 12 is incident by the light incident part 21, and as a result, the light received by the light incident part 21 is reflected by the reflection part 22, and the back surface of the light shielding layer 18 on which the transmissive display characters 16 are applied , And the display character 16 is transmitted and illuminated.

Therefore, according to this embodiment, by one lamp 12,
Since both the transmitted illumination of the instrument dial 10 and the display character 16 (finisher) of the operation switch adjacent to the dial 10 can be transmitted and illuminated, the display character transmission illumination used in the conventional example can be used. There is no need to provide a light-emitting diode, and the light guide plate for transmitting and illuminating the display characters 16 has a structure also serving as the upper housing 20, so that the number of parts can be reduced. It is possible to provide an instrument panel capable of improving the performance, that is, reducing the cost.

[Effect of the invention]

As described above, the present invention has a movement housing portion 3 for housing a transmitted illumination type instrument and a lower housing in which a switch housing portion 5 for housing an operation switch is formed. In the instrument panel that is transmitted and illuminated with light from the light source 12 provided in the movement accommodation unit 3,
An upper housing made of a transparent material is attached to a front opening of the lower housing. The upper housing receives light from the light source 12 and is provided at a front opening of the switch housing 5. Translucent display characters
Since the instrument panel integrally forms the light incident portion 21 for guiding light to 16, according to this, one lamp 12
Since both the transmitted illumination of the instrument dial 10 and the display character 16 (finisher) of the operation switch adjacent to the dial 10 can be transmitted and illuminated, the display character transmission illumination used in the conventional example can be used. There is no need to provide a light-emitting diode, and the light guide plate for transmitting and illuminating the display characters 16 has a structure also serving as the upper housing 20, so that the number of parts can be reduced. There is an effect that an instrument panel capable of improving the performance, that is, reducing the cost can be provided.

[Brief description of the drawings]

FIG. 1 is an explanatory sectional view showing an embodiment of an instrument panel according to the present invention, FIG. 2 is a front view of a conventional example, and FIG. 3 is a sectional view taken along line AA in FIG. 20: Upper housing, 21: Light entrance, 22: Reflector

Claims (1)

(57) [Scope of request for utility model registration] 1. A dial (10) for a transmission illumination type instrument, comprising: a movement housing part (3) for housing a transmission illumination type instrument; and a lower housing having a switch accommodation part (5) for accommodating an operation switch. ) Is an instrument panel that is transmitted and illuminated with light from a light source (12) provided in a movement accommodating portion (3), in which an upper housing made of a transparent material is attached to a front opening of the lower housing. The upper housing receives light from the light source (12) and guides the light to a transmitted illumination display character (16) provided in a front opening of the switch housing (5). (2
An instrument panel characterized in that 1) is integrally formed.