JPH0536256A - Push button device - Google Patents

Abstract

PURPOSE:To secure luminance for a button member by using a chip LED for a light emitting element of the push button device, attaching automatically the light emitting element to a substrate and providing a reflecting part treated by silk printing to the substrate. CONSTITUTION:The device is featured by possessing the light emitting element 7 provided on the substrate 6 and the button member 1 arranged on the side above this light emitting element and to be irradiated by this light emitting element and providing the reflecting part treated by silk printing at least on a surface of the substrate opposite to the button member.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push button device for an electronic device such as a portable compact display player, and more particularly to a light emitting element arranged on a substrate provided with a reflection portion by silk printing. The present invention relates to a push button device capable of automatically mounting an element and ensuring the brightness of a button member.

[0002]

2. Description of the Related Art Conventionally, LEDs (Light Emitti
ngDiode) is known. However, since this LED has a lead, it is generally mounted by soldering by hand to the substrate. In the LED with leads, the light source is located higher than the substrate, so when the entire button member was lit, the light was concentrated on the light source, resulting in uneven illuminance.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned conventional problems, and enables a chip LED to be used as a light emitting element of a push button device, and a light emitting element on a substrate. It is an object of the present invention to provide a push button device capable of ensuring the brightness of a button member by automatically mounting the touch panel and providing a reflection portion by silk printing on the substrate.

[0004]

The push button device of the present invention comprises:
It has a light emitting element provided on a substrate and a button member which is arranged on the upper side of the light emitting element and which is illuminated by the light emitting element, and at least the surface of the substrate facing the button member is silk-printed. It is characterized in that a reflection portion is provided.

[0005]

By doing so, the light emitting element can be automatically mounted and the brightness of the button member is secured.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. The illustration of the entire electronic device is omitted, and only the portion of the push button device is illustrated and described. First, FIG. 1 is a schematic cross-sectional view of the push button device of the present invention, and FIG. 2 is a schematic view of the button member of the push button device of FIG. 1 seen from above, in which the concave portion of the upper cabinet is shown by a dotted line. 3 is a schematic view of the holder and substrate of the push button device of FIG. 1 as seen from above, and FIG. 4 is the same as FIG.
FIG. 9 is a schematic view of a modified example of the holder and the substrate of the push button device of FIG. The same parts will be described with the same reference numerals.

1 to 3, the milky white button member 1 projects from the hole of the decorative plate 2 and emits light. Reference numeral 3 is an upper cabinet, and the fulcrum 1a of the button member 1 is held in the recess 3a of the upper cabinet 3 by the upper cabinet 3 and the button retainer 4. A substrate 6 is arranged below the button device 1, and a light emitting element 7 such as a chip LED is provided on the substrate 6. The light emitting element 7 is surrounded by the holder 5 arranged on the substrate 6. The holder 5 is formed of, for example, a white synthetic resin material so as to reflect the light of the light emitting element 7. A feature of the present invention is that the substrate 6 is provided with a reflecting portion 6a formed by, for example, white silk printing.
Reference numeral 8 is a tact switch.

The distance A (FIG. 1) from the lower surface of the button member 1 to the light emitting element 7 is, for example, 10 mm, and the size B × C (FIG. 3) of the portion surrounded by the holder 5 is, for example, 8 × 12 mm. is there. The example of FIG. 3 is a rectangular type, but the shape of the holder 5 is not limited. FIG. 4 shows a circular example. Furthermore, if the range of silk printing is larger than the outer shape of the holder 5, it is not necessary to match the printed shape with the outer shape of the holder 5.

When the upper end of the button member 1 is pushed, the button member is rotated about the fulcrum 1a of the button member 1 with the recess 3a of the upper cabinet 3 as a bearing to turn on / off the tact switch 8. The illumination of the light emitting element 7 blinks according to this on / off. Since the light of the light emitting element 7 is reflected and spread by the reflecting portion 6a silk-printed on the substrate, the entire button member 1 becomes bright without the light being concentrated on the light source. In addition, the light emitting element 7 is a chip
Since it is an LED, the mounting of the substrate 6 of the light emitting element 7 can be automated.

[0010]

As described above, in the push button device of the present invention, the chip LED can be used for the light emitting element, the light emitting element can be automatically mounted on the substrate, and the substrate is silk-printed. By providing the reflection portion, it is possible to ensure the brightness of the button member.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of a push button device of the present invention.

FIG. 2 is a schematic view of a button member of the push button device of FIG. 1 viewed from above.

FIG. 3 is a schematic view of the holder and the substrate of the push button device of FIG. 1 as seen from above.

FIG. 4 is a schematic view of a modified example of the holder and the substrate of the push button device of FIG. 1 viewed from above.

[Explanation of symbols]

 1 Button member 1a Support point 2 Decorative plate 3 Upper cabinet 3a Recess 4 Button holder 5 Holder 6 Board 6a Reflector 7 Light emitting element 8 Tact switch

Claims (1)

Claim: What is claimed is: 1. A light emitting element provided on a substrate, and a button member disposed on an upper side of the light emitting element and illuminated by the light emitting element. A push button device comprising a reflection portion formed by silk printing on a surface facing the button member.