JPH0348818Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a push button mounting device applied to a remote control device for remotely controlling a chandelier or the like.

[Background technology]

For example, as shown in FIG. 7, when a remote controller is used to press a push button 50 at hand, a signal is emitted from a light emitting section 51, and when the signal enters the light receiving section of a lighting device, the lighting device turns on, dims, turns off, etc. It is something that does. 52
53 is an upper housing, and 53 is a lower housing. Conventionally, as a push button mounting device applied to such a remote controller, etc., a push button of a push button switch is mounted on a printed circuit board having a hook locking hole therein, and a housing is used, in which a hole is formed to expose the tip of the push button. There was one in which a push button was exposed from the back side of the hole and the hook of the housing was locked in the hook locking hole (for example, Utility Model Application No. 158028/1983).

However, with this push button mounting device, if excessive force is applied to the printed circuit board by the push button, the printed circuit board may break because the hook locking hole of the printed circuit board is not located on the edge of the printed circuit board but inside. Further, since the hook must be formed by forcefully punching it out through an undercut, the protrusion of the locking portion is small, and therefore the printed circuit board tends to come off easily.

[Purpose of invention]

Therefore, an object of this invention is to provide a push button mounting device that can securely lock a printed circuit board to an elastic hook and that prevents the printed circuit board from breaking.

[Disclosure of invention]

The push button mounting device of this invention includes a printed circuit board having a plurality of positioning notches on both sides, a push button of a push button switch placed on the surface of the printed circuit board, and a push button of a push button placed over the printed circuit board. A button protruding surface having an exposure hole for exposing the tip and a die cutout hole formed at the edge thereof is recessed on the surface, and is engaged with the inner edge of the notch of the printed circuit board, It is equipped with a housing having an inwardly hanging elastic hook having a locking portion at the tip located directly below the mold punching hole.

According to the configuration of this invention, the notches on both sides of the printed circuit board are locked with elastic hooks, so even if the push button is forcibly pushed, the printed circuit board will not be locked inside the printed circuit board, so the printed circuit board can be stretched over its entire width appropriately. It can be bent, so the printed circuit board is difficult to break, and since the elastic hooks are locked in the notches, positioning when locking the printed circuit board to the elastic hooks is easy and reliable. In addition, the locking part of the elastic hook can be formed with a mold through the mold cutout hole without using an undercut, so the protrusion of the locking part can be increased and the printed circuit board can be securely locked. You can do it. Furthermore, the button protruding surface is recessed in the surface of the housing, and the die-cutting hole is formed at the edge, so the button protruding surface is not recessed as in, for example, Utility Model Application No. 49-083478. The die-cut holes are less noticeable in appearance than the conventional ones, and the position of the fingertips makes it difficult for the fingertips to touch the die-cut holes when operating the button, so it does not interfere with button operation, and the button protrusion, including the die-cut holes, does not interfere with button operation. The thickness of the display panel that covers the surface of the screen can be reduced.

An embodiment of this invention is shown in FIGS. 1 to 6. That is, this push button mounting device includes a printed circuit board 4 having a plurality of positioning notches 8 on both sides, a push button 5 of a push button switch (not shown) placed on the surface of this printed circuit board 4, and a printed circuit board 4 having a plurality of positioning notches 8 on both sides. An exposure hole 5a is formed over the substrate 4 to expose the tip of the push button 5, and a button protruding surface 5c is formed on the edge with a die-cutting hole 5b. A locking portion 7 that locks on the inner edge of the mold hole 5b and is located directly below the mold punching hole 5b.
It has a housing 6 in which an elastic hook 7 having a tip a is suspended inward.

The hand-held oscillator with this push-button mounting device will be explained below. This hand-held oscillator controls the chandelier A shown in Fig. 1. A panel 1 made of a transparent plate is fitted into the tip of a rectangular outer shape, and the inside of the hand-held oscillator is A light emitting unit 2 is disposed on the opposite side, and a battery 3 is disposed on the opposite side.
is built-in. Inside, a printed circuit board 4 for generating light beam signals and a push button 5 are fixed to an upper housing 6 made of synthetic resin with elastic hooks 7. That is, the printed circuit board 4 is provided with notches 8 at multiple locations, and the tip 4a of the printed circuit board 4 is hooked to the hook 6a of the upper housing 6, the hook 7 is fitted into the notch 8, and the push button 5 is inserted together with the upper housing 6. It is held like a sandwich. In this state, the lower housing 9 is put together and the housings 6 and 9 are connected with screws 10. An opening prevention rib 11 is provided on the inner surface of the lower housing 9, and this rib 11 comes into contact with the back surface of the hook 7 of the upper housing 6, and serves to prevent the hook 7 from opening. The hook 7 and the hook portion 6a of the upper housing 6 can be easily integrally molded because they are oriented in the direction of mold removal.

The battery 3 is placed in the storage part 12, the back cover 13 is fitted, and finally the display panel 14 is adhered to the surface of the button protruding surface 5c of the upper housing 6 to complete the process. In addition,
15 is a hook hole for attachment.

This embodiment has an infrared oscillator built-in (not shown), and when the push button 5 is pressed, an infrared signal is emitted from the panel 1, and the chandelier A
Light enters the light receiving unit 16 of the oscillator to control lighting, dimming, etc., but since it is a device used at hand, there is a high risk of it being accidentally dropped, and the oscillator will not disintegrate due to the impact of dropping. The opening prevention rib 11 of the hook 7 is useful. The position of the push button 5 is also set flush or recessed so that it does not protrude from the outer surface of the oscillator.If the push button 5 is placed in the opposite direction, the upper end of the upper housing 6 is raised at an angle a as shown in FIG.
b is raised to prevent the push button 5 from being pressed. In this way, in order to prevent the hook 7 from opening, the back side of the hook 7 is pressed down by the rib 11, and both sides of the printed circuit board 4 are sandwiched between the hooks 7, so if the push button 5 is pushed in forcibly, the printed circuit board Printed circuit board 4 using both sides of 4 as fulcrums
The printed circuit board 4 is less likely to be subjected to excessive force because it bends appropriately and absorbs the stress. Note that if a boss or the like is used to prevent the printed circuit board 4 from being pressed down too much, there is a risk that the boss will hit the printed circuit board 4, causing the printed circuit board 4 to break or the pattern to be cut.

With this structure, even if the handheld oscillator falls, the printed circuit board 4 will not come off the hook 7 due to the impact. Also, printed circuit board 4
Since both sides of the button 5 are supported by hooks 7, even if the push button 5 is pushed forcibly, the printed circuit board 4 will not bend and the printed circuit board 4 will not be broken. The hook 7 and the hook portion 6a of the printed circuit board 4 can be easily made because of the direction in which the upper housing 6 is pulled out, and the mold can be made at low cost.

[Effect of idea]

As described above, according to the push button mounting device of this invention, the notches on both sides of the printed circuit board are locked by the elastic hooks, so even if the push button is forcibly pressed, it will not be locked inside the printed circuit board. can be bent appropriately over the entire width,
Therefore, the printed circuit board is difficult to break, and since the elastic hooks are engaged with the notches, positioning when the printed circuit board is engaged with the elastic hooks is easy and reliable. In addition, the locking part of the elastic hook can be formed with a mold through the mold cutout hole without using an undercut, so the protrusion of the locking part can be increased and the printed circuit board can be securely locked. It can be done. Furthermore, the button protruding surface is recessed into the surface of the housing, and the die-cutting hole is formed at the edge, so for example,
Compared to the model No. 083478 where the button protruding surface is not recessed, the die-cutting hole is less noticeable in appearance, and the position is such that it is difficult for the fingertip to touch the die-cutting hole when operating the button. This has the effect that it does not interfere with operation, and that the thickness of the display panel that covers the surface of the button protruding surface including the die-cutting hole can be made thinner.

[Brief explanation of drawings]

Fig. 1 is a front view of the chandelier, Fig. 2 is a half-sectional front view of an embodiment of this invention, Fig. 3 is a longitudinal sectional view thereof, Fig. 4 is a rear view, Fig. 5 is a plan view, and Fig. 6 is a front view of the chandelier.
The figures are a sectional view taken along the line shown in FIG. 2, and FIG. 7 is a perspective view of a conventional example. 4... Printed circuit board, 5... Push button, 5a... Exposure hole,
5b... Mold punching hole, 5c... Button protruding surface, 6... Upper housing which is the housing of the push button, 7... Elastic hook, 7a... Locking part, 8... Notch.

Claims (1)

[Claims for Utility Model Registration] A printed circuit board having a plurality of positioning notches on both sides, a push button of a push button switch placed on the surface of the printed circuit board, and a push button of a push button placed over the printed circuit board. A button protruding surface having an exposure hole for exposing the tip and a die cutout hole formed on the edge thereof is recessed on the surface, and is engaged with the inner edge of the notch of the printed circuit board, A push button mounting device comprising a housing having an inwardly hanging elastic hook having a locking portion at the tip located directly below a mold punching hole.