JPH08264068A - Membrane switch - Google Patents

Abstract

PURPOSE: To provide a membrane switch capable of giving good click feeling at the time of key switching. CONSTITUTION: This membrane switch is provided with a membrane sheet 3 formed with insulation resin into a sheet shape and a rubber cap 5 formed with the insulation resin into a dome shape and having a groove 5b serving as an air entrance on the lower face of the dome, and the rubber cap 5 is fixed to the membrane sheet 3 by adhesive 7. The adhesive 7 is applied to the coating region on the membrane sheet 3 to match the fixing face of the membrane sheet 3 to the rubber cap 5. The rubber cap 5 is positioned with the adhesive 7 on the membrane 3 and fixed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a membrane switch used as an input device for various electronic devices.

[0002]

2. Description of the Related Art In recent years, various membrane switches have been proposed as thin input devices used in personal computers, word processor keyboards and the like. A typical configuration of such a conventional membrane switch is shown in FIG.
FIG. 10 shows the sectional structure.

As shown in FIGS. 9 and 10, a conventional membrane switch 101 is formed by forming an insulating resin such as polyester on a sheet, and covering the membrane sheet 103 having an electrical contact 103a on its upper surface and the electrical contact 103a. Insulating resin such as polyester is formed in a possible size in a dome shape, and a single key rubber cap 105 having a conducting electrode 105a is provided on the inner upper surface of the dome.
03a and the conducting electrode 105a face each other, and the single key rubber cap 105 is attached to the membrane sheet 103 with an adhesive 107.
It is fixedly formed by using.

Further, in the conventional membrane switch 101, the single key rubber cap 1 is provided in order to give a good click feeling at the time of key pressing operation, so-called key switching.
Groove 105b on the fixing surface of the membrane 05 of FIG.
Is provided to prevent air from accumulating in the single key rubber cap 105.

When the conventional membrane switch 101 is manufactured, the single key rubber cap 105 is formed in advance, and the electric contact 103 is formed on the membrane sheet 103.
a is formed. After that, the adhesive 107 is applied to the membrane sheet 103 with the same size as or a little larger than the fixing surface of the single key rubber cap 105 to the membrane sheet 103.
It is applied in a circular shape as shown in FIG. 8 at the fixing position of the single key rubber cap 105. Then, the single-key rubber cap 105 is positioned corresponding to the adhesive 107, and the single-key rubber cap 105 is strongly pressed against the adhesive 107 and then dried and cured, whereby the membrane switch 101 having the structure shown in FIG. 9 is obtained. It was manufactured.

[0006]

However, in the conventional membrane switch, since the single-key rubber cap is strongly pressed against the adhesive applied in a circular shape and then dried and cured, the groove is adhered. There is a possibility that the opening of the groove becomes small due to the blocking with the agent or the adhesion of the adhesive, and the click feeling is dulled at the time of key switching. Particularly, in the case of a small single-key rubber cap, the groove is also small, so that the above-mentioned problem is likely to occur. The present invention has been made in view of the above problems, and an object of the present invention is to provide a membrane switch capable of obtaining a good click feeling during key switching.

[0007]

In order to achieve the above object, the first invention of the present application is to form a sheet-like insulating resin and to cover the electric contact with a membrane sheet having an electric contact on the upper surface thereof. The insulating resin is formed in a dome shape with a large size, a conductive electrode is provided on the inner upper surface of the dome, and a rubber cap having a groove serving as an air inlet and outlet is provided on the lower surface of the dome. In a membrane switch comprising a contact and the conductive electrode facing each other and fixing the rubber cap to the membrane sheet with an adhesive, the adhesive is aligned with a fixing surface of the rubber cap with the membrane sheet, The adhesive is applied separately on the membrane sheet and the non-application area where the adhesive is not applied. It is summarized as that of which the fixed and aligned to the adhesive.

The second invention of the present application is a dome-shaped membrane sheet in which an insulating resin is formed into a sheet shape and an electric contact is provided on the upper surface thereof, and the insulating resin is large enough to cover the electric contact. And a rubber cap having a conductive electrode on the inner upper surface of the dome, and a groove serving as an air inlet / outlet on the lower surface of the dome, and the electric contact and the conductive electrode are opposed to each other. In a membrane switch formed by fixing a rubber cap to the membrane sheet with an adhesive, the adhesive is aligned with the fixing surface of the rubber cap with the membrane sheet,
The coating is divided into an application area for applying an adhesive and a non-application area for non-adhesive application on the membrane sheet, and the non-application area is aligned with at least one of the grooves and applied, and the rubber cap is The gist is that the non-application area is aligned and fixed in at least one groove.

A third invention of the present application is a dome-shaped membrane sheet in which an insulating resin is formed into a sheet shape and an electric contact is provided on the upper surface thereof, and the insulating resin is large enough to cover the electric contact. And a rubber cap provided with a conductive electrode on the inner upper surface of the dome, the electrical contact and the conductive electrode are opposed to each other, and the rubber cap is fixed to the membrane sheet with an adhesive. In the membrane switch, the adhesive is applied to the fixing surface of the rubber cap with the membrane sheet, and is applied separately to an application area where the adhesive is applied and a non-application area where the adhesive is not applied on the membrane sheet, The gist is that the rubber cap is aligned and fixed to the adhesive on the membrane sheet.

A fourth invention of the present application is a lower electrode sheet having a lower side electrical contact on an upper surface, and an upper electrode sheet having an upper side electrical contact provided on a lower surface so as to face the lower side electrical contact, A rubber cap which is made of a dome-shaped insulating resin and has a groove serving as an air inlet / outlet on the lower surface of the dome, and the rubber cap is attached to the upper surface of the installation position of the upper side electric contact of the upper electrode sheet. In the membrane switch formed by fixing the adhesive to the surface of the rubber cap fixed to the membrane sheet, the adhesive is applied to the membrane sheet and the adhesive is not applied. The gist is that the rubber cap is applied in divided areas, and the rubber cap is aligned and fixed to the adhesive on the membrane sheet.

A fourth invention of the present application is a lower electrode sheet having a lower side electric contact on an upper surface, and an upper electrode sheet having an upper side electric contact provided on a lower surface so as to face the lower side electric contact, A rubber cap which is made of a dome-shaped insulating resin and has a groove serving as an air inlet / outlet on the lower surface of the dome, and the rubber cap is attached to the upper surface of the installation position of the upper side electric contact of the upper electrode sheet. In the membrane switch formed by fixing the adhesive to the surface of the rubber cap fixed to the membrane sheet, the adhesive is applied to the membrane sheet and the adhesive is not applied. Divided into areas,
Further, the gist is that the non-application region is aligned with the at least one groove and applied, and the rubber cap is fixed by aligning the non-application region with the at least one groove.

Further, a sixth invention of the present application is a lower electrode sheet having a lower side electric contact on an upper surface, and an upper electrode sheet having an upper side electric contact provided on a lower surface so as to face the lower side electric contact, A rubber cap made of a dome-shaped insulating resin, wherein the rubber cap is fixed on the upper surface of the installation position of the upper side electric contact of the upper electrode sheet with an adhesive, wherein the adhesive is The rubber cap is applied separately to an application area where an adhesive is applied on the membrane sheet and an adhesive-unapplied area where the adhesive is not applied on the membrane sheet. The gist is that it is aligned and fixed to the above adhesive.

[0013]

The membrane switch of the first invention of the present application is a membrane sheet in which an insulating resin is formed into a sheet shape and an electric contact is provided on the upper surface thereof, and the insulating resin is dome-sized in a size capable of covering the electric contact. And a rubber cap having a groove formed on the lower surface of the dome, the conductive electrode being formed on the inner upper surface of the dome, and having a groove serving as an air inlet / outlet, and the electric contact and the conductive electrode are opposed to each other. In a membrane switch formed by fixing the rubber cap to the membrane sheet with an adhesive, an application area and an adhesive for applying an adhesive on the membrane sheet in alignment with a fixing surface of the rubber cap with the membrane sheet. Adhesive is applied separately to the non-application area, and the rubber cap is fixed by aligning with the adhesive on the membrane sheet. It is. Therefore, an area where the rubber cap and the membrane sheet are not fixed is formed, so that an air inlet / outlet of the rubber cap can be secured, and a good click feeling can be obtained at the time of key switching.

The membrane switch of the second invention of the present application is
A sheet of insulating resin is formed on the upper surface of which a membrane sheet is provided with electrical contacts, and the insulating resin is formed in a dome shape with a size that can cover the electrical contacts. And a rubber cap having a groove serving as an air inlet and outlet on the lower surface of the dome, the electric contact and the conducting electrode are opposed to each other, and the rubber cap is attached to the membrane sheet using an adhesive. In the fixed membrane switch, align with the fixing surface of the rubber cap with the membrane sheet,
An adhesive is applied on the membrane sheet and an adhesive-unapplied non-application area is divided, and the adhesive is applied by aligning the non-application area with at least one of the grooves. The rubber cap is fixed by aligning the non-coated area with one groove. Therefore, an area where the rubber cap and the membrane sheet are not fixed is formed, so that an air inlet / outlet of the rubber cap can be secured, and a good click feeling can be obtained at the time of key switching.

The membrane switch of the third invention of the present application is
A sheet of insulating resin is formed on the upper surface of which a membrane sheet is provided with electrical contacts, and the insulating resin is formed in a dome shape with a size that can cover the electrical contacts. And a rubber cap with
A membrane switch comprising the electrical contact and the conduction electrode opposed to each other and the rubber cap fixed to the membrane sheet with an adhesive, the rubber cap being aligned with a fixing surface of the rubber sheet on the membrane sheet. The adhesive is applied separately to the application area where the adhesive is applied and the non-application area where the adhesive is not applied, and the rubber cap is fixed in alignment with the adhesive on the membrane sheet. Therefore, an area where the rubber cap and the membrane sheet are not fixed is formed, so that an air inlet / outlet of the rubber cap can be secured, and a good click feeling can be obtained at the time of key switching.

The membrane switch of the fourth invention of the present application is
A lower electrode sheet having a lower side electrical contact on the upper surface, an upper electrode sheet having an upper side electrical contact provided on the lower surface so as to face the lower side electrical contact, and a dome-shaped insulating resin. A rubber cap having a groove formed on the lower surface of the dome, and being fixed to the upper surface of the installation position of the upper side electric contact of the upper electrode sheet with an adhesive, The adhesive is applied separately to the application area where the adhesive is applied on the membrane sheet and the non-application area where the adhesive is not applied on the membrane sheet, and is aligned with the adhesive on the membrane sheet. Then, the rubber cap is fixed. Therefore, an area where the rubber cap and the membrane sheet are not fixed is formed, so that an air inlet / outlet of the rubber cap can be secured, and a good click feeling can be obtained at the time of key switching.

The membrane switch of the fifth invention of the present application is
A lower electrode sheet having a lower side electrical contact on the upper surface, an upper electrode sheet having an upper side electrical contact provided on the lower surface so as to face the lower side electrical contact, and a dome-shaped insulating resin. A rubber cap having a groove formed on the lower surface of the dome, and being fixed to the upper surface of the installation position of the upper side electric contact of the upper electrode sheet with an adhesive, Aligned with the fixed surface of the membrane sheet, divided into an application area for applying adhesive on the membrane sheet and a non-application area for non-adhesive application, and aligning the non-application area with at least one of the grooves. An adhesive is applied, and the rubber cap is fixed by aligning the non-application area with the at least one groove. Therefore, an area where the rubber cap and the membrane sheet are not fixed is formed, so that an air inlet / outlet of the rubber cap can be secured, and a good click feeling can be obtained at the time of key switching.

The membrane switch of the sixth invention of the present application is
A lower electrode sheet having a lower side electrical contact on its upper surface, an upper electrode sheet having an upper side electrical contact provided on the lower surface so as to face the lower side electrical contact, and a rubber cap made of a dome-shaped insulating resin. Then, in a membrane switch formed by fixing with an adhesive to the upper surface of the installation position of the upper side electric contact of the upper electrode sheet, align with the fixing surface of the rubber cap with the membrane sheet, and adhere to the membrane sheet. The adhesive is applied separately to the application area where the agent is applied and the non-application area where the adhesive is not applied, and the rubber cap is fixed in alignment with the adhesive on the membrane sheet. Therefore, an area where the rubber cap and the membrane sheet are not fixed is formed, so that an air inlet / outlet of the rubber cap can be secured, and a good click feeling can be obtained at the time of key switching.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing components of a membrane switch 1 according to the first embodiment. 2 is a plan view showing the structure of the membrane switch 1 after assembly, and FIG. 3 is a sectional view thereof.

As shown in FIGS. 1 to 3, the membrane switch 1 is made of an insulating resin such as polyester in the form of a sheet, and has a membrane sheet 3 provided with electrical contacts 3a (see FIG. 3) on the upper surface thereof. An insulating resin such as silicone or polyester is formed in a dome shape with a size capable of covering the contact 3a, and a conductive electrode 5a is formed on the inner upper surface of the dome to be electrically connected to the electrical contact 3a. A single key rubber cap 5 having a groove 5b serving as an entrance and exit is provided on the lower surface of the dome, and the electric contact 3a and the conducting electrode 5a are opposed to each other so that the single key rubber cap 5 is attached to the membrane sheet 3 using an adhesive 7. It is fixedly formed.

The adhesive 7 is a single key rubber cap 5
The surface of the membrane sheet 3 is almost the same as or slightly larger than the fixing surface of the membrane sheet 3, and the single key rubber cap 5 of the membrane sheet 3 is applied on the membrane sheet 3 discontinuously at predetermined intervals in an arc shape as shown in FIG. To be done. In the example shown in FIG. 1, the adhesive 7 is the groove 5b in the single key rubber cap 5.
The areas corresponding to the convex fixing portions 5c formed by providing the areas are separately applied as the application area 7a to which the adhesive 7 is applied and the area corresponding to the groove 5b as the non-application area 7b to which the adhesive 7 is not applied. It

Next, the manufacturing operation of the membrane switch 1 of the first embodiment will be described.

The single key rubber cap 5 is formed in advance, and the membrane sheet 3 having the electrical contacts 3a is formed. After that, as shown in FIG. 1, the adhesive 7 is applied to the fixing position of the single key rubber cap 5 of the membrane sheet 3 at the same position as the fixing surface of the single key rubber cap 5 to the membrane sheet 3 or a little larger than that. The non-application area 7b is divided and applied in an arc shape. The adhesive 7 is applied using a printing technique, but the application is not limited to this.
Alternatively, the syringe containing the adhesive 7 may be slid in accordance with the shape of the application area 7a and ejected while being applied.

Then, the single key rubber cap 5 is positioned so as to correspond to the adhesive 7, and the non-application area 7b of the adhesive 7 is positioned so as to be aligned with the groove 5b of the single key rubber cap 5. The single key rubber cap 5 is strongly pressed against the adhesive 7 and then dried and cured. With these, the membrane switch 1 as shown in FIG. 2 is manufactured. At this time, since the groove 5b of the single key rubber cap 5 and the non-coated area 7b on the membrane sheet 3 are aligned with each other, the groove 5b is prevented from being blocked by the adhesive 7.

As described above, in the membrane switch 1 of the first embodiment, the single key rubber cap 5 is fixed to the fixed position of the single key rubber cap 5 of the membrane sheet 3 almost the same as the fixing surface of the membrane sheet 3 or slightly larger. The adhesive 7 is divided into a coating area 7a and a non-coating area 7b in an arc shape.
Is applied, the single key rubber cap 5 is positioned corresponding to the adhesive 7, and the non-application area 7b of the adhesive 7 is aligned with the groove 5b of the single key rubber cap 5. Since the single key rubber cap 5 is fixed on the membrane sheet 3 by strongly pressing the key rubber cap 5 against the adhesive 7 and then drying and curing it, the groove 5b is not blocked and the key switching is not performed. It is possible to obtain a good click feeling.

The membrane switch 1 of the first embodiment
In the above, the area corresponding to the two fixing portions 5c is the application area 7a, but the present invention is not limited to this, and the area corresponding to one fixing portion 5c may be the application area 7a. Further, in the example shown in FIG. 1, the shape of the application area 7a is an arc shape, but the shape is not limited to this and may be a rectangular shape.

Further, in the membrane switch 1 of the first embodiment, the application area 7a and the non-application area 7b are divided according to the sizes of the fixed portion 5c and the groove 5b, but the invention is not limited to this. Instead of corresponding to the sizes of the portion 5c and the groove 5b, the application region 7a and the non-application region 7b may be divided into predetermined sizes as shown in FIG. Further, the sizes of the application area 7a and the non-application area 7b may be random. In these cases, the operation of aligning the non-application area 7b of the adhesive 7 with the groove 5b of the single key rubber cap 5 may not be performed. In this case, the groove 5b may be blocked by the adhesive 7, but since the non-application area 7b is present, it is very unlikely that the entire groove 5b will be completely blocked. Even if all of the groove 5b is completely closed, since the non-fixed area is formed by the non-application area 7b, the air inlet / outlet is secured.

FIG. 5 is a diagram showing components of the membrane switch 21 according to the second embodiment. 6 is a plan view showing the structure of the membrane switch 21 after assembly. The cross-sectional view after assembly is the first shown in FIG.
Since it is the same as the membrane switch 1 of the above embodiment, its illustration is omitted.

As shown in FIGS. 5 and 6, the membrane switch 21 is provided with a single key rubber cap in which the groove 5b provided in the single key rubber cap 5 of the membrane switch 1 shown in FIG. 1 is eliminated. Other configurations are the same as those of the membrane switch 1 of the first embodiment shown in FIGS. Therefore, the membrane switch 1 shown in FIG.
The same symbols are attached to the same components as those and detailed description thereof is omitted.

Next, the manufacturing operation of the membrane switch 21 of the second embodiment will be described. The single key rubber cap 25 is formed in advance, and the electric contact 3 a is formed on the membrane sheet 3. After that, as shown in FIG. 1, the adhesive 7 is applied to the fixing position of the single key rubber cap 25 of the membrane sheet 3 so as not to be applied to the application area 7a at the same position as the fixing surface of the single key rubber cap 25 of the membrane sheet 3 or slightly larger. The application area 7b is divided and applied in an arc shape.
The application of the adhesive 7 is the same as in the case of the membrane switch 1 of the first embodiment described above. Then, after the single key rubber cap 25 is positioned corresponding to the adhesive 7, the single key rubber cap 25 is strongly pressed against the adhesive 7, and then dried and cured. With these, the membrane switch 21 as shown in FIG. 6 is manufactured.

In the membrane switch 21 of the second embodiment, unlike the membrane switch 1 of the first embodiment, the groove 5b is not provided in the single key rubber cap 5, but the membrane switch 1 of the first embodiment is used. Similarly, since the application area 7a to which the adhesive 7 is applied and the non-application area 7b to which the adhesive 7 is not applied are divided, the single key rubber cap 2
When 5 is fixed to the membrane sheet 3, the groove 25b is formed by the non-application area 7b of the adhesive 7 as shown in FIG. Therefore, even if the single key rubber cap 25 is not provided with a groove serving as an air inlet / outlet port, the single key rubber cap 25 can be provided with an air inlet / outlet port. Further, when fixing the single key rubber cap 25 to the membrane sheet 3, the operation of aligning the non-application area 7b of the adhesive 7 with the groove 5b of the single key rubber cap 5 like the membrane switch 1 of the first embodiment is not performed. Since it is not necessary, the membrane switch 21 is easier to assemble than the membrane switch 1 of the first embodiment.

As described above, in the membrane switch 21 of the second embodiment, the single key rubber cap 25 is fixed to the fixed position of the single key rubber cap 25 of the membrane sheet 3 almost the same as or slightly larger than the fixing surface of the membrane sheet 3. The adhesive 7 is applied in an arc shape separately to the application area 7a and the non-application area 7b, and the single key rubber cap 25 is positioned corresponding to the adhesive 7, and then the single key rubber cap 25 is applied to the adhesive 7. Since the single key rubber cap 25 is fixed on the membrane sheet 3 by strongly pressing, then drying and curing, a good click feeling can be obtained at the time of key switching, like the membrane switch 1 of the first embodiment. It becomes possible. In addition, the second
In the membrane switch 21 of the embodiment described above, it is not necessary to provide the single key rubber cap 25 with a groove for the entrance and exit of air, and when the single key rubber cap 25 is fixed to the membrane sheet 3, the adhesive 7 is not applied to the groove. Since the operation of aligning the coating areas 7b is unnecessary, the assembly becomes easy.

The membrane switch 2 of the second embodiment
In the case of No. 1, the shape of the application area 7a is an arc shape, but the shape is not limited to this and may be a rectangular shape. Furthermore, the application area 7a
The size of the non-application area 7b may be random.

The case where both the membrane switch 1 of the first embodiment and the membrane switch 21 of the second embodiment are applied to the comb-teeth type membrane switch has been described as an example, but the present invention is not limited to this. 7, the lower electrode sheet 31 having the lower side electrical contact 31a on the upper surface and the spacer 33 for holding the contact gap fixed to the lower surface of the lower electrode sheet 31 as shown in FIG.
And an upper electrical contact 35 fixed to the lower surface of the spacer 33 and provided on the lower surface so as to face the lower electrical contact 31a.
The upper electrode sheet 35 including a and a rubber cap 37 made of a dome-shaped insulating resin are used. The rubber cap 37 is attached to the upper surface of the upper electrode sheet 35 at the installation position of the upper side electrical contact 35a using an adhesive 39. The fixed-type counter electrode type membrane switch 41 can also be applied in the same manner as the membrane switch 1 of the first embodiment and the membrane switch 21 of the second embodiment.

[0035]

As described above, according to the present invention, the adhesive is aligned with the fixing surface of the rubber cap with the membrane sheet, and the application area for applying the adhesive on the membrane sheet and the non-application of the adhesive are not applied. Apply in separate application areas,
Since the rubber cap is fixed on the membrane sheet according to the applied adhesive, an area where the rubber cap and the membrane sheet sheet are not fixed is formed, so that the air inlet and outlet of the rubber cap can be secured and the key A good click feeling can be obtained during switching.

[Brief description of drawings]

FIG. 1 is a diagram showing components of a first embodiment of a membrane switch according to the present invention.

FIG. 2 is a plan view showing a configuration after assembling the components of the membrane switch shown in FIG.

FIG. 3 is a diagram showing a cross section of the membrane switch shown in FIG.

FIG. 4 is a diagram showing an example of an application region and a non-application region other than the adhesive application region and the non-application region of the membrane switch shown in FIG.

FIG. 5 is a diagram showing components of a second embodiment of the membrane switch according to the present invention.

FIG. 6 is a plan view showing a configuration after assembling the components of the membrane switch shown in FIG.

FIG. 7 is a view showing a cross section of a counter electrode type membrane switch.

FIG. 8 is a diagram showing components of a conventional membrane switch.

9 is a plan view showing the structure of the constituent elements of the conventional membrane switch shown in FIG. 8 after assembly.

10 is a view showing a cross section of the conventional membrane switch shown in FIG.

[Explanation of symbols]

 1,21,41 Membrane switch 3 Membrane sheet 3a Electric contact 5,25 Single key rubber cap 5a Conductive electrode 5b, 25b Groove 5c Fixed part 7,39 Adhesive 7a Application area 7b Non-application area 31 Lower electrode sheet 31a Lower side electricity Contact 33 Spacer 35 Upper electrode sheet 35a Upper electric contact 37 Rubber cap

Claims (6)

[Claims] 1. A sheet of insulating resin, an upper surface of which is provided with an electrical contact, a membrane sheet, and an insulating resin having a size capable of covering the electrical contact, formed into a dome shape. A conductive electrode is provided on the inner upper surface,
A membrane comprising a rubber cap provided with a groove serving as an air inlet and outlet on the lower surface of the dome, and the electric contact and the conducting electrode are opposed to each other and the rubber cap is fixed to the membrane sheet with an adhesive. In the switch, the adhesive is applied separately to an application area where the adhesive is applied and a non-application area where the adhesive is not applied on the membrane sheet, in accordance with a fixing surface of the rubber cap with the membrane sheet, The membrane switch, wherein the rubber cap is aligned and fixed to the adhesive on the membrane sheet. 2. A sheet of insulating resin, a membrane sheet having an electrical contact on its upper surface, and a dome-shaped insulating resin having a size capable of covering the electrical contact. A conductive electrode is provided on the inner upper surface,
A membrane comprising a rubber cap provided with a groove serving as an air inlet and outlet on the lower surface of the dome, and the electric contact and the conducting electrode are opposed to each other and the rubber cap is fixed to the membrane sheet with an adhesive. In the switch, the adhesive is divided into an application area for applying the adhesive and a non-application area for not applying the adhesive on the membrane sheet in accordance with a fixing surface of the rubber cap with the membrane sheet, and at least one The membrane switch, wherein the non-application area is aligned and applied to one of the grooves, and the rubber cap is fixed by aligning the non-application area to the at least one groove. 3. An insulating resin is formed into a sheet shape, and a membrane sheet having an electrical contact on its upper surface and an insulating resin having a size capable of covering the electrical contact are formed into a dome shape. A rubber cap having a conductive electrode on an inner upper surface thereof, wherein the electrical contact and the conductive electrode are opposed to each other and the rubber cap is fixed to the membrane sheet with an adhesive, wherein the adhesive Is applied separately to an application area where an adhesive is applied on the membrane sheet and a non-application area where an adhesive is not applied on the membrane sheet, in accordance with a fixing surface of the rubber cap with the membrane sheet, and the rubber cap is the membrane. A membrane switch, which is aligned and fixed to the adhesive on a sheet. 4. A lower electrode sheet having a lower side electrical contact on an upper surface, an upper electrode sheet having an upper side electrical contact provided on a lower surface so as to face the lower side electrical contact, and a dome-shaped insulating resin. A rubber cap having a groove serving as an air inlet / outlet on the lower surface of the dome, the rubber cap being fixed to the upper surface of the upper electrode sheet at the installation position of the upper side electrical contact with an adhesive. In the membrane switch, the adhesive is applied to the fixing surface of the rubber cap with the membrane sheet, and is applied separately to an application area where the adhesive is applied on the membrane sheet and a non-application area where the adhesive is not applied, The membrane switch, wherein the rubber cap is aligned and fixed to the adhesive on the membrane sheet. 5. A lower electrode sheet having a lower side electrical contact on an upper surface, an upper electrode sheet having an upper side electrical contact provided on a lower surface so as to face the lower side electrical contact, and a dome-shaped insulating resin. A rubber cap having a groove serving as an air inlet / outlet on the lower surface of the dome, the rubber cap being fixed to the upper surface of the upper electrode sheet at the installation position of the upper side electrical contact with an adhesive. In the membrane switch, the adhesive is aligned with a fixing surface of the rubber cap with the membrane sheet, and is divided into an application area where the adhesive is applied on the membrane sheet and a non-application area where the adhesive is not applied, and at least The non-application area is aligned with one of the grooves and applied, and the rubber cap aligns the non-application area with the at least one groove. Membrane switch characterized in that it is allowed to fixing. 6. A lower electrode sheet having a lower side electrical contact on an upper surface, an upper electrode sheet having an upper side electrical contact provided on a lower surface so as to face the lower side electrical contact, and a dome-shaped insulating resin. And a rubber cap, wherein the rubber cap is fixed to the upper surface of the installation position of the upper side electric contact of the upper electrode sheet with an adhesive, wherein the adhesive is the membrane of the rubber cap. According to the fixed surface of the sheet, the adhesive is applied separately on the membrane sheet and the non-application area of the adhesive is not applied, the rubber cap is located on the adhesive on the membrane sheet Membrane switch characterized by being fixed together.