JPH0414817Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a switch panel lighting device used in an external atmosphere.

Motorcycles, motorboats, etc. are equipped with trip computers and navigators, and operations such as switching the display on the display are mainly performed using push button switches. Keyboard switches with multiple push button switches are commonly used. It is true. This type of switch must not only have a switching function, but also a waterproof function to prevent water from entering the switch's contacts from the outside. Examples of such switch structures include those shown in FIGS. 2, 4 (and 5), and 8 of Japanese Utility Model Application Publication No. 58-59126. That is, a fixed contact is provided on a printed circuit board, an elastic plate-like body is arranged along the printed circuit board on the fixed contact side of this printed circuit board, and the position corresponding to the fixed contact is defined as a cup-shaped leg above the center of this leg. A movable contact is provided on the surface on the substrate side, and the structure is such that water can be prevented from entering onto the substrate and inside the elastic plate.

By the way, switch panels with built-in switches require lighting at night when mounted on motorcycles, motorboats, etc. Conventional structures cannot provide internal lighting, making it difficult to meet various needs and making it difficult to install switches. Since the panel is configured to be illuminated from the front side, the configuration becomes complicated and large, which is not desirable in terms of installation space and assembly cost.

Also, if you only want to light the switch,
For example, as disclosed in Japanese Patent Application Laid-Open No. 56-108126, a printed circuit board is provided with a fixed contact, a movable contact is provided spaced apart in front of the fixed contact, and the periphery of the movable contact is formed into a cup-shaped leg. an elastic plate-like body disposed on the front side of the printed circuit board, and a pressing operation for bringing the fixed contact and the movable contact into contact from the front of the panel through a hole in the panel provided on the front side of the elastic plate-like body. In this switch panel, a recess is provided in an elastic plate made of translucent silicone rubber, a lighting lamp on a printed circuit board is placed inside this recess, and the illumination light from this lamp is transmitted through the elastic plate. A switch panel is known in which the switch itself is made to appear to glow while the switch and lamp are waterproofed by introducing the light into the light.

However, in this conventional example, the elastic plate-like body has an uneven shape, which not only obstructs the light guiding effect but also attenuates light within the elastic plate-like body, making the switch near the lamp brighter and the farther away it is, the brighter the switch becomes. The lighting balance will be severely affected as the area will become dark. In addition, the panel has a translucent dial design,
A structure in which this design is illuminated by a lamp can be considered, but in the conventional example, since the panel and the lamp are in contact with each other via an elastic plate, the illumination is essentially only directly above the lamp. However, unless more lamps are installed, multiple designs cannot be illuminated through the light, which is completely disadvantageous for illuminating a panel.

The present invention has been devised in view of the above, and provides a switch panel lighting device having not only a switching function but also a waterproof function and an internal illumination function.

Hereinafter, the present invention will be described in detail based on the accompanying drawings.

FIG. 1 is a sectional view showing one embodiment of the present invention, and FIG. 2 is a perspective view of a keyboard switch for a two-wheeled vehicle to which this embodiment is applied. In the figure, 1 is a printed circuit board, and fixed contacts 2 as described later are printed on the front surface of the board. Reference numeral 3 denotes a light-transmitting elastic plate-like body disposed along the front surface of the printed circuit board 1, and in this case, it is made of silicone rubber. The position of the elastic plate-like body 3 corresponding to the fixed contact 2 is a cup-shaped leg 4,
The central portion thereof is thick and a movable contact 5 is provided on the substrate 1 side. This movable contact 5 is made of silicone rubber containing a large amount of carbon, and becomes this movable contact 5 when the elastic plate-like body 3 is molded.
The elastic plate-like body 3 having the movable contacts 5 is formed by placing silicone rubber containing a large amount of carbon at a predetermined location and then pouring the silicone rubber which is the material of the elastic plate-like body 3. be.

Reference numeral 6 denotes a panel, which is located on the front side at a distance from the elastic plate-like body 3, and a through hole 8 in which the push button 7 is located is bored in front of the movable contact 5 of the panel 6. It is set up. Reference numeral 9 denotes a translucent dial plate, which has a transparent hole 10 in a position corresponding to the transparent hole 8 of the panel 6, and has letters corresponding to each push button 7, and other parts are printed in black, for example. It is opaque. A hole 11 for transmitted light is provided in the panel 6 at a position corresponding to a character on the dial plate 9.

Reference numeral 12 denotes an illumination lamp, which is attached via a rubber socket 17 to a column 16 rising from the bottom wall of the lower case 15 that constitutes the case 13 of this switch device together with the upper case 14, and is inserted through a hole 18 made in the substrate 1. It is located on the front side of the board 1. Moreover, this lamp 1 of the elastic plate-like body 3
A thin recess 19 is formed at the corresponding position 2, and the lamp 12 is inserted into the recess 19 of the elastic plate 3 through the hole 18 of the substrate 1. The upper case 14 has an opening at a position corresponding to the panel 6, and a step is provided at the end of this opening, and the peripheral edge of the panel 6 is brought into contact with this step, and the peripheral edge is pushed downward almost vertically. The substrate 1 is bent, and the tip of the bent peripheral end is fitted into a groove formed in the peripheral end of the elastic plate 3, and the substrate 1 is positioned on the lower surface of the elastic plate 3. The base plate 1, the elastic plate-like body 3, the panel 6, and the push button 7 can be positioned and fixed by tightening screws 21 to the bosses 20 formed on the upper case 14. Also,
The dial 9 has its peripheral edge connected to the upper case 14 and the panel 6.
It is fixed by adhesive. In addition, the push button 7 has a convex cross section, and the through hole 8 of the panel 6 and the dial 9
The through hole 10 is sized so that only the thin part of the push button 7 protrudes to the front, and the upper surface around the lower thick part is in contact with the panel 6 to prevent it from coming off.
The lower surface of this push button is a cup-shaped leg 4 of an elastic plate-like body 3.
It is in contact with the upper surface of the center thick part.

The fixed contacts 2 are printed and formed as a pattern as shown in FIG. In other words, the curves 22 and 2 are two electrode patterns that do not intersect with each other.
3 are placed close to each other and the push button 7 is pressed from the front of the panel 6, the cup-shaped leg portion 4 of the elastic plate-like body 3 is deformed and the movable contact 5 is pushed down rearward. When the movable contact 5 touches this fixed contact 2, these two curved patterns 22,
23 becomes electrically conductive and the pressing operation on the push button 7 is stopped, the cup-shaped leg 4 returns to its original state, the movable contact 5 separates from the fixed contact 2, and the 2
The curved patterns 22 and 23 of the book are in an open state,
Therefore, it is possible to configure a switch similar to a normally open type switch.

In addition, in FIG. 2, 24 is a display section, and the display is switched by operating each push button 7.

As described above, according to the configuration of this embodiment, not only the switching function but also the substrate 1 Water cannot enter the surface of the elastic plate-like body 3 on the substrate 1 side, and a waterproof effect can be obtained, and the illumination lamp 12 is positioned on the front side of the substrate 1 through the hole 18 of the substrate 1. Since the lamp 12 and the panel 6 are arranged apart from each other to enable the dial 9 to be illuminated with transmitted light, light attenuation is reduced when illuminating multiple designs compared to the conventional example, and the inside of the panel 6 is illuminated. This has the advantage that illumination is possible. Note that if the panel 6 is formed of a transparent plate, the holes 11 are not necessary. Furthermore, if a drainage hole communicating with the space between the elastic plate-like body 3 and the panel 6 is provided at an appropriate location of this switch device, the water can be drained without accumulating on the elastic plate-like body 3, and the water can be drained more effectively. Waterproofing and lighting effects can be obtained.

FIG. 4 is a sectional view showing a second embodiment of the present invention. In the figure, the same or equivalent components as shown in the above embodiment are given the same reference numerals as in FIG. 1.

In the case of this embodiment, the wedge base lamp 25 is mounted in the hole 18 of the substrate 1, so that the pillar 16 of the above embodiment does not need to be provided in the case. Further, the panel 26 is made translucent and has a dial design on its surface, so that it also functions as a dial. In addition, a water drain hole 27 is integrally formed at a proper location on the elastic plate-like body 3, and the water drain hole 27 is passed through the board 1, another printed circuit board 28, and the lower case 15.
The tip of No. 7 is exposed outside to allow drainage. Further, the peripheral end of the panel 26 is bent downward to form a groove, and the leading end of the outer peripheral end of the elastic plate 3 is press-fitted into the groove.

This embodiment described above can also provide the same effects as the embodiments described above.

In addition, in the above two embodiments, the fixed contact is
Although the shape shown in the figure is used, any shape other than this may be used as long as it can function as a switch. Furthermore, the present invention can be applied to any push-button switch device that is used while being exposed to the outside atmosphere, and can be applied to other devices such as motorcycles, motor boats, etc.
Needless to say, it can be applied to construction machinery, agricultural machinery, etc., and any device having one or more switches is sufficient.

As described above, a printed circuit board is provided with a fixed contact, a movable contact is provided spaced apart in front of the fixed contact, and an elastic plate-like member is provided on the front surface of the printed circuit board with a cup-shaped leg around the movable contact. A switch panel that is separate from the panel and allows the fixed contact and the movable contact to be brought into contact and separated from the front of the panel through a hole in the panel provided on the front side of the elastic plate-like body. A light-transmitting dial design is provided on the front surface of the dial or the panel, an illumination lamp having a light-emitting part located at least in front of the front surface of the printed circuit board is provided, and the elastic plate-like body is translucent. In addition, the switch panel lighting device of the present invention has a concave portion protruding toward the front side of the illumination lamp in the elastic plate-like body, and the panel and the printed circuit board are spaced apart. In addition to the waterproof effect, switch panels used in This can also be advantageous in terms of assembly cost, and can provide a practically excellent product.

[Brief explanation of drawings]

Figure 1 is a sectional view showing one embodiment of the present invention.
The figure is a perspective view of the external appearance of the switch device in Figure 1, and Figure 3.
The figure shows an example of the shape of a fixed contact, and FIG. 4 is a sectional view showing a second embodiment of the present invention. 1... Printed circuit board, 2... Fixed contact, 3...
Elastic plate-like body, 4...Cup-shaped leg, 5...Movable contact, 6, 26...Panel, 7...Push button, 8...Through hole in panel, 9...Dial board, 10...Dial board through hole, 12, 25... lighting lamp, 13... case, 14... upper case, 15... lower case, 18
... Hole in printed circuit board, 19 ... Recess, 22,2
3... Fixed contact electrode, 27... Water drain hole.

Claims (1)

[Scope of utility model registration request] A printed circuit board provided with a fixed contact, and an elastic plate-like body provided with a movable contact spaced apart in front of the fixed contact and disposed around the movable contact as a cup-shaped leg on the front surface of the printed circuit board. In a switch panel that enables contact and separation operations between the fixed contact and the movable contact from the front of the panel through a hole in the panel provided on the front side of the elastic plate-like body, the dial or the panel that is separate from the panel A light-transparent dial design is provided on the front of the
An illumination lamp having a light emitting part located at least in front of the front surface of the printed circuit board is provided, and the elastic plate-like body is translucent and protrudes from the elastic plate-like body toward the front side of the illumination lamp. A lighting device for a switch panel, characterized in that a recess is provided, and the panel and the printed circuit board are spaced apart from each other.