JP2000268664A - Luminous display structure of push-button switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminous display structure of a push-button switch, low in cost, high in versatility, and having a design part or display portion not affected by the ambient brightness and light, with its luminous display brightness less attenuated by them. SOLUTION: This luminous display structure of a push-button switch has a display filter 3 serving as an illuminated display part built in a button 1 exposedly mounted on a surface of an apparatus panel 6. Side surfaces of the button 1 are provided with angled reflection surfaces 13 for regularly and irregularly reflecting the ambient light and irregular reflection surfaces 14 for causing irregular reflection by reflecting the light reflected by the reflection surfaces 13 to the exterior of the button 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting display structure of a push button switch, and more particularly to a light emitting display structure of a push button switch for preventing the light emitting display from becoming invisible due to ambient light in an installation environment.

[0002]

2. Description of the Related Art As a conventional light emitting display structure of a push button switch of this type, as shown in FIG. 3, a button 1 is a cover for the purpose of protecting the light emitting display structure.
Reference numeral 2 denotes a flat surface, which is fitted and fixed to the operation button 2. L
The ED 21 is fixed to the operation button 2. The operation button 2 is fitted and fixed to a flange portion 4 made of a material that blocks light. The switch portion 5 is fitted inside the flange portion 4 and is installed inside the device panel 6 so as to sandwich the device panel 6 and fix the entire push button switch.

FIG. 2 is a cross-sectional view showing a light emitting display structure of a conventional push button switch. As shown in the figure, the switch is turned on by pressing a button 1 exposed and mounted on the surface of an equipment panel 6. LED 21 for confirming that
Emits light, which impinges on the display filter 3 placed on the LED 21. The display filter 3 is made of a material that transmits and diffuses light, and the light spreads over the entire surface of the display filter 3 to emit light through the display surface 11 of the button 1 made of a transparent material. .

[0004]

However, the light emitting display structure of the conventional push button switch has a problem in that, when the surroundings are bright in an outdoor or other mounting environment, when light enters from the side and hits the display filter, the display filter diffuses light. As a result, the light that enters from the side surface spreads over the entire surface of the display filter, and when the switch is turned on, the LED for the confirmation light that glows cancels out the light emitted, making it difficult to determine whether the confirmation light is on. Was.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and has a low level of luminous display brightness due to the influence of ambient brightness and light, and does not affect the design portion as a display portion. It is an object of the present invention to provide a light-emitting display structure of a push-button switch having a high height.

[0006]

In order to achieve the above object, a light emitting display structure of a push button switch according to the present invention includes a display which is illuminated and provided as a display portion in a button which is mounted on the surface of an equipment panel so as to be exposed. A light emitting display structure of a push button switch having a built-in filter, wherein a reflective surface having an angle to reflect ambient light on the side surface of the button, and a diffusely reflecting surface for diffusely reflecting light reflected by the reflective surface out of the push button are provided. It is characterized by being provided. In the light-emitting display structure of this push-button switch, by providing a structure that reflects and diffusely reflects light that is about to enter the surface of the button side surface, light that hinders light-emission display from the surroundings in the mounting environment enters the light-emission display unit. And the attenuation of the luminance of the light-emitting display on the target light-emitting display surface is reduced.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings. In the present invention, as shown in FIG. 1, the button 1 is a cover for protecting the light-emitting display structure, is composed of a display surface 11 and a side surface 12, and is fitted and fixed to the operation button 2. The LED 21 is fixed to the operation button 2. The operation button 2 is fitted and fixed to a flange portion 4 made of a material that blocks light. The switch portion 5 is fitted inside the flange portion 4 and is installed inside the device panel 6 so as to sandwich the device panel 6 and fix the entire push button switch.

Next, the button 1 exposed and mounted on the surface of the equipment panel 6 is provided with a plurality of reflection surfaces 13 and irregular reflection surfaces 14 arranged on the side surface 12 so as to try to enter from the side surface of the button 1. The light hits the reflecting surface 13 and is reflected. The light reflected by the reflection surface 13 is further diffused into the irregular reflection surface 1.
4 and it is reflected. As described above, the light is repeatedly reflected by the reflection surface 13 and the irregular reflection surface 14, whereby the irregular reflection is guided to the outside of the button, and the light hitting the display filter 3 is reduced, so that the light emitted for display is not obstructed. In FIG. 1, the reflecting surfaces 13 are arranged regularly, but if the reflecting surface is formed, the reflecting surface 13 may have an irregular shape or arrangement, and the same effect will be obtained even if it is arranged on the inner surface of the button 1.

[0009]

As is clear from the above description, the self-illuminated push button switch according to the present invention has a structure in which the button reflects light from the surroundings, so that the light emitted by the LED is reduced and the surrounding light is reduced. A light-emitting display that is less affected by brightness can be obtained. In addition, since the structure is provided on the side surface, there is no effect on the display surface which is a design surface, and there is an effect that an inexpensive and versatile light emitting display unit can be obtained.

[Brief description of the drawings]

FIG. 1 is a sectional view showing one embodiment of a light emitting display structure of a push button switch according to the present invention.

FIG. 2 is a sectional view showing a light emitting display structure of a conventional push button switch.

FIG. 3 is a sectional view showing a conventional push button switch.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Button 12 ... Side surface 13 ... Reflection surface 14 ... Diffuse reflection surface 3 ... Display filter 6 ... Equipment panel

Claims (1)

[Claims] 1. A light-emitting display structure of a push-button switch having a built-in display filter (3) which is illuminated in a button (1) which is mounted on the surface of an equipment panel (6) so as to be exposed. A reflection surface (13) having an angle to reflect ambient light is provided on a side surface (12) of the button, and a diffuse reflection surface (14) for diffusely reflecting light reflected by the reflection surface out of the push button. A light emitting display structure of a push button switch, characterized in that: