JPH0511616Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a push button switch that uses a cap-like elastic body and is configured to turn on and off two circuits simultaneously.

BACKGROUND TECHNOLOGY In general, when a push button switch using a cap-shaped elastic body is constructed so that two circuits can be turned on and off at the same time, each circuit is placed on a board 11 as shown in FIGS. 4 and 5. A pair of electrodes 12a, 12b, 13a, 13b are provided, and these electrodes 12a, 12b, 13a, 13
An elastic body 14 formed into a cap shape between b
They are configured to be turned on and off individually by conductors 15 and 16 provided on the inner ceiling of the switch.

Problems to be Solved by the Invention However, in this type of device, when the push button 17 is pressed, as shown in FIG.
If the conductor 15 or 16 is even slightly tilted with respect to the through hole 19 formed in the 8th grade, one of the conductors 15 or 16 may not come into complete contact with the opposing electrode 12a, 12b or 13a, 13b. I had a problem with it not turning on.

The purpose of the present invention is to eliminate the above-mentioned conventional drawbacks, and to provide an excellent push button switch that has a simple structure and can always accurately turn on and off two circuits at the same time even if the push button is slightly tilted. It is something to do.

Means for Solving the Problems In order to achieve the above object, the present invention has a pair of electrodes constituting the first circuit in the center and two pairs of electrodes constituting the second circuit, and these are placed in the central part. The structure is such that a pair of electrodes constituting one circuit are arranged on both sides of the center.

Therefore, according to the present invention, even if the push button is slightly tilted when the push button is pressed, at least one pair of electrodes out of the two pairs of electrodes forming the second circuit and the one forming the first circuit The pair of electrodes will always be shorted by a conductor, allowing the two circuits to be turned on and off at exactly the same time.

Embodiment FIGS. 1 and 2 show the configuration of an embodiment of the push button switch of the present invention. In the figure, 1 is a substrate, and 2a and 2b are formed on the substrate 1 to constitute a first circuit. A pair of electrodes 3 _a1 , 3 _b1 , 3 _a2 , 3 _b2 are two pairs of electrodes 4 configuring a second circuit arranged on both sides of the electrodes 2 a and 2 b, respectively.
is a cap-shaped elastic body placed on the substrate 1,
5, 6a, 6b are the respective electrodes 2a, 2b, 3
_a1 , 3 _b1 , 3 _a2 , 3 _b2 , a conductor attached to the center of the inner surface of the elastic body 4, 7 a push button, 8 a case, 9 a push button attachment formed on the case 8. It is a through hole.

Note that the electrodes 3 _a1 , 3 _b1 , 3 _a forming the second circuit
₂ and 3 _b2 are connected in parallel to each other by a conductor layer formed on the substrate 1.

In the above embodiment, when the push button 7 is pressed,
The cap-shaped elastic body 4 is similarly pressed, and the conductors 5, 6a, and 6b are connected to the electrodes 2a, 2b, 3a, _{and 3a} , respectively.
3 _b , 3 _a2 , and 3 _b2 to short-circuit these electrodes. Therefore, this turns on two circuits simultaneously.

By the way, according to the above embodiment, two pairs of electrodes constituting the second circuit are provided, and these are arranged on both sides of the pair of electrodes constituting the first circuit. As shown in FIG. 2, even if the push button 7 is slightly tilted, the first and second circuits can be turned on almost completely, and malfunctions can be extremely reduced.

Effects of the Invention As is clear from the above embodiment, the present invention provides two pairs of electrodes facing each other constituting the second circuit, and arranges these on both sides of a pair of electrodes constituting the first circuit. , when the cap-shaped elastic body is pressed, each pair of electrodes is short-circuited by the respective conductors provided on the inner ceiling part of the cap-shaped elastic body, and the electrodes constituting the second circuit are connected to the second circuit. Since there is one pair on each side of the pair of electrodes that make up the first circuit, even if the elastic body is slightly tilted when pressed, each electrode that makes up the first and second circuits can be accurately connected. can be shorted,
This has the advantage of greatly reducing malfunctions.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional side view of one embodiment of the push button switch of the present invention, Fig. 2 is a top view of the same main part, Fig. 3 is an explanatory diagram of the operation of the same embodiment, and Fig. 4 is a diagram of a conventional push button switch. 5 is a top view of the main parts, and FIG. 6 is an explanatory diagram of the operation of the switch. 1...Substrate, 2a, 2b, 3 _a1 , 3 _b1 , 3 _a2 ,
3 _b2 ...electrode, 4...elastic body, 5, 6a, 6b...
...Conductor, 7...Push button, 8...Case, 9...Through hole.

Claims (1)

[Scope of utility model registration request] A pair of electrodes facing each other forming a first circuit, and two pairs of electrodes facing each other forming a second circuit arranged on both sides of this electrode and connected in parallel to each other. Conductors are provided on the inner surface of a cap-shaped elastic body formed on the substrate and provided opposite to the substrate, and each conductor faces each pair of electrodes, and the cap-shaped elastic body is pressed. A push button switch configured to short-circuit each pair of electrodes to each other by the conductor corresponding to the electrode of each body, and to simultaneously turn on and off the first and second circuits.