JP2005259461A - Sheet with movable contact and input device using this - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet with movable contact in which contact of a movable contact and a fixed contact can be performed surely and 2-step switch operation is possible, and an input device using this. <P>SOLUTION: The device comprises a first movable contact 3 having a dome-like swelling part, a second movable contact 4 having a swelling part of dome-like one size larger than the first movable contact 3, and a cover sheet 5 which is arranged on the top face side of the first and second movable contacts 3, 4, and an protruded part 3c protruding toward the side from the outer peripheral edge 3b is provided at the first movable contact 3, and an aperture 4c is provided corresponding to the protruded part 3c at the side face part of the second movable contact 4; the protruded part 3c of the first movable contact 3 is drawn outside of the second movable contact 4 through the aperture 4c, and in the state that the outer peripheral edge 4b of the second movable contact 4 and the protruded part 3c of the first movable contact 3 are separated by the aperture 4c, the protruded part 3c is held by the cover sheet 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a sheet with a movable contact used in an input device such as an electronic device, and more particularly, a sheet with a movable contact provided with a movable contact for a first stage switch and a movable contact for a second stage switch, and the same. It relates to an input device.

  The structure of the conventional two-stage switch consists of a structure in which the entire dome-shaped movable contact is lifted from the fixed contact of the base (wiring board) and attached to a sheet (cover film) laminated on the board, When the sheet is pressed, the outer peripheral edge of the movable contact is lowered and comes into contact with the first fixed contact and the first switch is turned on. Is known to be in contact with the second stage fixed contact to turn on the second stage switch (see, for example, Patent Document 1).

Hereinafter, the structure of the conventional two-stage switch will be described with reference to the drawings.
6 is an exploded perspective view of a conventional two-stage switch, FIG. 7 is a cross-sectional view taken along line XX of FIG. 6, and FIG. 8 is a top view of the main part of the contact pattern.

In the figure, reference numeral 21 denotes a wiring board which is a lower insulating base, and first to third contacts 22 to 24 are arranged on the upper surface. The first contact 22 is formed to protrude outward at a predetermined angular pitch on the inner peripheral narrow portion 22A that is concentrically arranged with a predetermined interval from the outer periphery of the third contact 24 formed in a circular shape. It is constituted by the radial portion 22B.
In addition, the second contact 23 is connected to the first contact 22 on the outer peripheral narrow portion 23A concentrically disposed on the third contact 24 with a slight gap from the outer periphery of the radial portion 22B of the first contact 22. It is comprised by the radial part 23B extended and formed toward the part between 22 radial parts 22B.

  The lead portion 22C of the first contact 22 is drawn from the outer peripheral portion of the radial portion 22B, and the lead portion 23C of the second contact 23 is drawn from the outer peripheral portion of the radial portion 23B. Further, the third contact 24 surrounded by the first and second contacts 22 and 23 is led out to the back side of the wiring board 21 through the through-hole portion 24A and is drawn out by the lead-out portion 24B. An insulating resist 25 is applied and formed on the outermost peripheral positions of the first and second contacts 22 and 23 and the upper portions of the lead portions 22C and 23C.

  Further, a spacer 26 is disposed above the wiring board 21, and the contact pattern composed of the first to third contacts 22 to 24 corresponds to the position of the hole 26 </ b> A provided in the spacer 26. A flexible cover film 28, which is an upper insulating base material, is adhesively fixed above the spacer 26 with an adhesive 28A. On the back surface of the cover film 28 corresponding to the hole 26A of the spacer 26, The central apex 29B of the movable contact 29 made of a thin metal plate formed in a circular dome shape and the vicinity thereof are fixed by an adhesive 28A.

  The movable contact 29 has an outer peripheral lower end 29A corresponding to an intermediate position in the width direction of the radial portions 22B and 23B of the first and second contacts 22 and 23 arranged in a substantially ring shape on the wiring board 21. In addition, the radial portions 22B and 23B and the outer peripheral lower end 29A are fixed to the cover film 28 and accommodated in the hole 26A of the spacer 26 so as to have a predetermined interval in the vertical direction.

Next, the operation will be described. When a predetermined operating force is applied from above the cover film 28, the cover film 28 is slightly bent and the entire movable contact 29 moves downward, and the outer peripheral lower end 29A is the first and second contacts 22. , 23 are brought into contact with the radial portions 22B, 23B, and the first contact 22 and the second contact 23 are connected and conducted.
On the other hand, when a pressing operation force larger than the reversal operation force of the movable contact 29 is applied from above the cover film 28, the cover film 28 is first bent and the entire movable contact 29 is moved downward, and the outer peripheral lower end 29A thereof is the first and second lower ends. After contact with the two contacts 22, 23, the movable contact 29 reverses and the central apex portion 29 B comes into contact with the third contact 24.
As described above, the switch according to the present embodiment can be obtained by selectively using two circuit connection states depending on the magnitude of the force during operation.

JP 2001-297657 A

  However, in the above-described conventional two-stage switch structure, since the entire movable contact 29 is lifted from the first to third contacts 22 to 24 which are fixed contacts disposed on the wiring board 21, the cover film 28 and Depending on the mounting state, there is a problem that the contact with the fixed contact becomes unstable and the cover film 28 may fall off.

  Accordingly, the present invention provides a seat with a movable contact that can solve the above-described problems, can reliably make contact between the movable contact and the fixed contact, and can operate a two-stage switch, and an input device using the same. With the goal.

  In order to solve the above-mentioned problems, in the present invention, as a first solving means, a first movable contact having a dome-shaped bulge and a dome-shaped bulge that is slightly larger than the first movable contact are provided. A second movable contact disposed above the first movable contact, and disposed on the upper surface side of the first and second movable contacts, and the second movable contact on the lower surface side. A cover sheet that holds the first movable contact, and a protruding portion that protrudes laterally from the outer peripheral edge portion of the first movable contact. The outer peripheral edge portion of the second movable contact corresponds to the protruding portion. And opening the extended portion of the first movable contact to the outside of the second movable contact through the opening, and the outer peripheral edge of the second movable contact and the first movable contact. With the overhanging part spaced apart by the opening, the overhanging part is moved forward. It has a structure in which is held by the cover sheet.

As a second solution, the opening is formed by cutting out the outer peripheral edge of the second movable contact.
As a third solution, the opening is formed between the protrusions by providing a protrusion on the outer peripheral edge of the second movable contact.

As a fourth solution, an adhesive layer is provided on the lower surface of the cover sheet, and the cover sheet is peeled off by the adhesive layer so that the first movable contact and the second movable contact can be peeled together. It was set as the structure hold | maintained at the sheet | seat.
As a fifth solution, the cover sheet is configured to hold a plurality of third movable contacts for the first-stage switch together with the first and second movable contacts for the second-stage switch.

  As a sixth solution, the movable contact sheet according to any one of the first to fifth solutions, the first and second movable contacts, and the third movable contact are connected. A plurality of fixed contacts are provided, and a base on which the sheet with movable contacts is stacked corresponding to these fixed contacts is provided.

As described above, the sheet with a movable contact according to the present invention has a first movable contact having a dome-shaped bulge, a dome-shaped bulge that is one size larger than the first movable contact, A second movable contact disposed above the one movable contact, and a cover sheet disposed on the upper surface side of the first and second movable contacts and holding the second movable contact on the lower surface side. The first movable contact is provided with an overhanging portion that protrudes laterally from the outer peripheral edge, and the outer peripheral edge of the second movable contact is provided with an opening corresponding to the overhanging portion. The overhanging portion is pulled out to the outside of the second movable contact through the opening, and the outer peripheral edge of the second movable contact and the overhanging portion of the first movable contact are separated from each other by the opening. Because it is held by the cover sheet, it is tensioned to the lower first movable contact for the two-stage switch. Since this projecting part is pulled out through the opening of the upper second movable contact, both the upper and lower movable contacts for the two-stage switch are held on one common cover sheet. Therefore, it is possible to reliably make contact with the fixed contact of the substrate disposed on the lower surface side and to operate the two-stage switch.
In addition, the upper and lower first and second movable contacts can be integrally held on one common cover sheet, so that the assembly of the switch is facilitated.

In addition, since the opening is formed by cutting out the outer peripheral edge of the second movable contact, the opening can be reliably formed. Further, the outer shape can be reduced by notching both sides.
In addition, since the openings are formed between the protrusions by providing the protrusions on the outer peripheral edge portion of the second movable contact, the openings can be formed with a simple configuration simply by providing the protrusions. Moreover, processing becomes easy.

In addition, the adhesive sheet is provided on the lower surface of the cover sheet, and the cover sheet is held on the release sheet by the adhesive layer so that the first movable contact and the second movable contact can be peeled together. Can be easily handled in transport and assembly operations.
Further, since the cover sheet holds a plurality of third movable contacts for the first-stage switch together with the first and second movable contacts for the second-stage switch, the first and second for the second-stage switch. The movable contact and the third movable contact for the one-stage switch can be mixedly mounted on a common cover sheet, and can be easily incorporated into the switch.

  Further, the movable contact sheet according to any one of the first to fifth solving means, the first and second movable contacts, and a plurality of fixed contacts connected to the third movable contact are provided. In addition, since a base on which a sheet with a movable contact is stacked corresponding to these fixed contacts is provided, a two-stage switch can be obtained simply by stacking a sheet with a movable contact on a substrate on which fixed contacts are disposed. Therefore, an input device having a two-stage switch can be easily assembled.

  1 to 5 show an embodiment of a sheet with a movable contact and an input device using the same according to the present invention. FIG. 1 is an exploded perspective view of the sheet with movable contacts of the present invention, FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1, and FIG. 3 shows the operating state of the first-stage switch of the sheet with movable contacts of the present invention. 4 is a cross-sectional view of the main part, FIG. 4 is a cross-sectional view of the main part showing the operation state of the second stage switch of the sheet with movable contact of the present invention, and FIG. 5 shows a sheet type switch using the sheet with movable contact of the present invention It is a disassembled perspective view.

  1 and 2, a circuit board 1 that is a base on which sheets with movable contacts are laminated is formed in a flat plate shape with a laminated plate of phenol resin or the like, and a copper foil is formed on the surface of the circuit board 1. A plurality of fixed contacts 2 made of a conductive metal material such as are disposed. The fixed contact 2 includes a circular first contact portion 2a provided in the center, a second contact portion 2b provided in an annular shape on the outer periphery of the first contact portion 1a, and a second contact portion 2b. It has a pair of 3rd contact parts 2c and 2c provided in circular arc shape in the outer periphery. These first contact portion 2a to third contact portion 2c are individually separated and non-conductive, and are connected to a lead pattern (not shown) on the back surface of the circuit board 1.

  The first movable contact 3 is formed of a conductive metal plate in a circular shape having a dome-shaped bulged portion at the center, and a central top portion 3a and an outer peripheral edge portion 3b connected to the fixed contact 2 are connected to each other. Have. When the first movable contact 3 is disposed on the circuit board 1, the outer peripheral edge 3b is placed in a state where it is always in contact with the second contact 2b, and the lower surface of the central top 3a is the first bottom. The first contact portion 2a is arranged to face the first contact portion 2a with a certain gap. In addition, a pair of long protruding portions 3c and 3c projecting to the side of the outer peripheral edge 3b are provided at positions facing each other across the central top 3a of the outer peripheral edge 3b. The overhang portions 3c and 3c extend in parallel to the surface of the circuit board 1 from the lower surface of the outer peripheral edge portion 3b.

  The second movable contact 4 is made of a conductive metal plate and has an outer shape that is substantially elliptical. The second movable contact 4 has a dome-shaped bulge that is slightly larger than the first movable contact 3. The movable contact 3 is arranged on the upper surface side. The second movable contact 4 has a central top portion 4 a connected to the first movable contact 3 and a pair of outer peripheral edge portions 4 b and 4 b connected to the fixed contact 2. The outer peripheral edge portions 4b and 4b are formed by cutting out a pair of opposing side surface portions of the circular dome. Further, a pair of openings 4c and 4c are formed so as to face each other in a direction orthogonal to the formation position of the outer peripheral edge portions 4b and 4b by cutting out the side surface portion.

  When the second movable contact 4 is disposed on the circuit board 1, the pair of outer peripheral edge portions 4b and 4b are placed in a state where they are always in contact with the third contact portions 2c and 2c, The protrusion 4d provided on the bottom surface of the top portion 4a is arranged to face the top surface of the central top portion 3a of the first movable contact 3 with a certain gap. At this time, the pair of elongated protrusions 3c, 3c of the first movable contact 3 disposed on the lower surface side is passed through the pair of openings 4c, 4c of the second movable contact 4. The second movable contact 4 is pulled out of the second movable contact 4 in a state of being separated from the second movable contact 4.

In the above embodiment, the openings 4c and 4c are formed by cutting out the side surface of the second movable contact 4, so that the openings 4c and 4c can be reliably formed. The outer shape can be reduced by notching both sides.
In addition, when the second movable contact 4 is disposed on the circuit board 1, the outer shape of the second movable contact 4 is formed in a substantially elliptical shape so that the mutual width is narrow. If it is arranged on the circuit board 1 along the direction, the arrangement pitch in the vertical direction can be narrowed, and the switch can be miniaturized.

  The cover sheet 5 is formed from a film-like insulating material made of polyimide or the like. In addition, an adhesive layer (not shown) is formed on the lower surface side of the cover sheet 5, and the upper surface side of the dome portion of the second movable contact 4 is adhered to the adhesive layer, so that the cover sheet 5 In addition, the second movable contact 4 is integrated. In addition, overhang portions 3c and 3c of the first movable contact 3 extending through the openings 4c and 4c of the second movable contact 4 are also integrally attached to the cover sheet 5, The second movable contact 4 is arranged opposite to the movable contact 3 while maintaining a certain gap, and is integrally attached to the cover sheet 5 by an adhesive layer in a state of being separated from each other. It has become.

  The sheet with a movable contact according to the present invention has the above-described configuration, and the first movable contact 3 is provided with an overhanging portion 3c that protrudes laterally from the outer peripheral edge portion 3b, and the second movable contact 4 is provided. Is provided with an opening 4c made of a cutout corresponding to the overhanging portion 3c, and the overhanging portion 3c of the first movable contact 3 is drawn out of the second movable contact 4 through the opening 4c. The overhanging portion 3c of the first movable contact 3 in a state where the outer peripheral edge 4b of the second movable contact 4 and the overhanging portion 3c of the first movable contact 3 are separated by the opening 4c. The upper surface side of the second movable contact 4 is adhered and held by the adhesive layer of the cover sheet, and is integrated as a sheet with a movable contact.

  Although not shown, the cover sheet 5 is formed so that the first movable contact 3 and the second movable contact 4 can be peeled together by using an adhesive layer formed on the lower surface of the cover sheet 5. You may make it hold | maintain by sticking to a peeling sheet (not shown) by the adhesive layer formed in this. In this way, it is possible to easily carry the movable contact-attached sheet in handling and assembly operations.

  In the above-described embodiment, the second movable contact 4 is provided with the opening 4c having a notch corresponding to the protruding portion 3c of the first movable contact 3, and the first movable contact 3 Although the overhanging portion 3c is pulled out to the outside of the second movable contact 4 through the opening 4c, the opening 4c is a protrusion on the outer peripheral edge of the second movable contact 4, although this is not shown. It is also possible to form between the protrusions by providing a. In this way, the opening can be formed with a simple configuration in which only the protrusions are provided, and the processing can be easily performed.

Next, the operation of the sheet with movable contact having the above-described configuration will be described with reference to FIGS.
First, in the initial state (see FIG. 2), the fixed contact 2 provided on the circuit board 1 has the second contact portion 2b connected to the outer peripheral edge portion 3b of the first movable contact 3. The contact portion 2a is separated from the central top portion 3a of the first movable contact 3, and the contact portion for the lower two-stage switch is in an OFF state.
At this time, the third contact portion 2c is connected to the outer peripheral edge portion 4b of the second movable contact 4, but the protrusion 4d on the lower surface of the central top portion 4a is connected to the second contact portion 2b. The first movable contact 3 is separated from the central top portion 3a, and the contact portion for the upper one-stage switch is also in the OFF state.

  From this state, as shown in FIG. 3, when the movable contact-attached sheet is pressed (the upper surface side of the cover sheet 5 is pressed), the second movable contact 4 is bent downward (or reversed) to feel a click. As a result, the protrusion 4d on the lower surface of the central top portion 4a comes into contact with the upper surface of the central top portion 3a of the first movable contact 3 disposed on the lower side. By this contact, the second contact portion 2b and the third contact portion 2c of the fixed contact 2 are connected via the first and second movable contacts 3 and 4, and for the upper one-stage switch. Is turned on.

  Next, as shown in FIG. 4, when the sheet with movable contact is further pressed, the second movable contact 4 is further bent downward, and the protrusion 4 d on the lower surface of the central top portion 4 a becomes the first movable contact 3. By pressing the central top 3a downward, the first movable contact 3 bends downward (or reverses) to produce a click feeling, and the fixed contact 2 is provided with the lower surface of the central top 3a facing each other. The first contact portion 2a. By this contact, the first contact portion 2a and the second contact portion 2b of the fixed contact 2 are connected via the first movable contact 3, and the contact portion for the lower two-stage switch is also provided. Turns on.

At this time, in the fixed contact 2, the first contact portion 2 a, the second contact portion 2 b, and the third contact portion 2 c are electrically connected to each other via the first movable contact 3 and the second movable contact 4. Has become.
As described above, the movable contact sheet having the above-described configuration in which the first and second movable contacts 3 and 4 are integrally attached is placed on the circuit board 1 on which the fixed contact 2 is disposed. Since the desired two-stage switch can be obtained simply by stacking the movable contacts 3 and 4 and the fixed contact 2 facing each other, the assembly of the input device including the two-stage switch can be easily performed. It has become.

  In the above-described embodiment, the second movable contact 4 is provided with a pair of outer peripheral edge portions 4b and 4b that are formed in a substantially elliptical shape and have an arc shape sandwiching the central top portion 4a of the dome-shaped bulge portion. The pair of outer peripheral edge portions 4b and 4b are connected to the pair of third contact portions 2c and 2c of the fixed contact 2 disposed on the lower side, but the present invention is not limited to this, and the second movable contact 4 Is formed into a circular dome shape and formed into a cross shape having a plurality of (for example, four) leg portions, and a plurality of (for example, four) openings are formed, and the first movable contact 3 is formed through these openings. The plurality of overhang portions 3c may be extended.

  Moreover, in the said Example, although the said circuit board 1 as a base was formed with the flat board | substrate which consists of a phenol resin laminated board etc., metal materials, such as electroconductive copper foil, were arrange | positioned on the surface. However, the present invention is not limited to this, and it may be formed in a flat or box-shaped housing shape with an insulating material such as a synthetic resin. In this case, the fixed terminal 2 is formed of a conductive metal plate, The contact portion may be formed by being embedded integrally by a method such as insert molding so that the surface is exposed on the inner bottom surface.

FIG. 5 shows a sheet-type switch using a sheet with a movable contact having the above configuration.
In the figure, the circuit board 11 is formed in a slightly larger rectangle, and a plurality of fixed contacts are provided on the circuit board 11. This fixed contact is formed in a state where a fixed contact 12 for a first stage switch and a fixed contact 13 for a second stage switch are mixedly mounted. In the present embodiment, the fixed contact 13 for the two-stage switch is formed only at one central position, and the fixed contact 12 for the first-stage switch is formed in all others.

  The cover sheet 14 is also formed in a slightly larger rectangle, and an adhesive layer (not shown) is formed on the entire lower surface of the cover sheet 14. The first and second movable contacts 3, 4 are attached to the back side of the center of the cover sheet 14 by an adhesive layer, and the second movable contact 3 is attached to the upper surface side of the central top 3 a of the first movable contact 3. The lower surface side of the central top portion 5a of the movable contact 4 is attached to face in a state where a certain gap is maintained. A plurality of third movable contacts 15 for a single-stage switch are attached to the back side of the cover sheet 14 so as to face the fixed contact 12. The third movable contact 15 is a conductive metal plate and is formed in a circular shape having a dome-shaped bulged portion at the center.

  Then, the first and second movable contacts 3 and 4 and the fixed contact 13 arranged in the center form a two-stage switch capable of two-stage switch operation, and a plurality of third switches arranged in the vicinity thereof. The movable contact 15 and the fixed contact 12 form a one-step switch that can be operated by a one-step switch.

  In the above configuration, the first and second movable contacts 3 and 4 that form part of the two-stage switch are formed only in the center of the cover sheet 14. A plurality of two-stage switches may be provided in such a manner that the first and second movable contacts 3 and 4 are attached to the place.

  In addition, the first stage switch that can be operated by the first stage switch is provided with the circular third movable contact 15 whose outer shape is slightly smaller than the second movable contact 4, but the present invention is not limited to this. A movable contact having the same size as the movable contact 4 may be used, and the outer shape may be formed in an elliptical shape.

As described above, since the cover sheet 14 holds the first and second movable contacts 3 and 4 for the two-stage switch and a plurality of third movable contacts 15 for the first-stage switch, the two-stage switch Since the first and second movable contacts 3 and 4 and the third movable contact 15 for the one-stage switch can be mixedly mounted on the common cover sheet 14, the sheet-type switch can be easily incorporated. It has become.
Since the third movable contact 15 for the first-stage switch and the first and second movable contacts 3 and 4 for the second-stage switch are integrally held by the same cover sheet 14, the operation fee is increased. The ring can be made uniform, and the deterioration of the operation feeling due to the increase in the thickness of the sheet with the movable contact can be prevented.

According to the above-described embodiment of the present invention, the first movable contact 3 is provided with the overhanging portion 3c projecting laterally from the outer peripheral edge portion 3b, and the overhanging edge portion of the second movable contact 4 is provided with this overhanging portion. An opening 4c is provided corresponding to the portion 3c, and the projecting portion 3c of the first movable contact 3 is pulled out to the outside of the second movable contact 4 through the opening 4c, and the outer peripheral edge of the second movable contact 4 4b and the overhanging portion 3c of the first movable contact 3 are separated from each other by the opening 4c, and the overhanging portion 3c is held by the cover sheets 5 and 14, so that the first lower switch for the two-stage switch is used. Since the overhanging portion 3c is provided on the movable contact 3 and the overhanging portion 3c is drawn outside through the opening 4c of the upper second movable contact 4, both the upper and lower movable contacts 3 for the two-stage switch are provided. 4 is held by one common cover sheet 5, 14. Therefore, it is possible to provide a sheet with a movable contact that can reliably make contact with the fixed contacts 2 and 12 and 13 of the substrates 1 and 11 disposed on the lower surface side and that can be operated by a two-stage switch. It has become.
In addition, the upper and lower first and second movable contacts 3 and 4 can be integrally held on one common cover sheet 5 and 14, so that the switch can be easily assembled. Yes.

It is a disassembled perspective view which shows the sheet | seat with a movable contact of this invention. It is sectional drawing in the 2-2 line of FIG. 1 of this invention. It is principal part sectional drawing which shows the operation state of the switch for 1st steps | paragraphs of the sheet | seat with a movable contact of this invention. It is principal part sectional drawing which shows the operation state of the switch for 2nd steps | paragraphs of the sheet | seat with a movable contact of this invention. It is a disassembled perspective view which shows the sheet-type switch using the sheet | seat with a movable contact of this invention. It is a disassembled perspective view which shows the conventional 2 step | paragraph switch. It is sectional drawing in the XX line of the conventional FIG. It is a principal part top view which shows the conventional contact pattern.

Explanation of symbols

1: Circuit board (base)
2: Fixed contact 2a: 1st contact part 2b: 2nd contact part 2c: 3rd contact part 3: 1st movable contact 3a: Center top part 3b: Outer peripheral edge part 3c: Overhang part 4: 2nd movable contact 4a : Center top part 4b: Outer peripheral edge part 4c: Opening part 4d: Protrusion 5: Cover sheet 11: Circuit board 12: Fixed contact 13: Fixed contact 14: Cover sheet 15: Third movable contact

Claims (6)

  A first movable contact having a dome-shaped bulge, and a second dome-shaped bulge that is slightly larger than the first movable contact and disposed above the first movable contact. And a cover sheet which is disposed on the upper surface side of the first and second movable contacts and holds the second movable contact on the lower surface side, and the first movable contact includes An overhang projecting laterally from the outer peripheral edge is provided, an opening is provided in the outer peripheral edge of the second movable contact in correspondence with the overhang, and the overhang of the first movable contact is The extension portion is pulled out to the outside of the second movable contact through the opening, and the outer peripheral edge portion of the second movable contact and the extension portion of the first movable contact are separated by the opening. A sheet with a movable contact, wherein the cover sheet is held by the cover sheet .   The sheet with movable contact according to claim 1, wherein the opening is formed by cutting out an outer peripheral edge of the second movable contact.   2. The sheet with movable contact according to claim 1, wherein the opening is formed between the protrusions by providing a protrusion on an outer peripheral edge of the second movable contact.   An adhesive layer is provided on the lower surface of the cover sheet, and the cover sheet is held on the release sheet by the adhesive layer so that the first movable contact and the second movable contact can be peeled together. The sheet | seat with a movable contact in any one of Claim 1 thru | or 3.   5. The movable contact according to claim 4, wherein the cover sheet holds a plurality of third movable contacts for the first-stage switch together with the first and second movable contacts for the second-stage switch. Sheet. A sheet with a movable contact according to any one of claims 1 to 5, the first and second movable contacts, and a plurality of fixed contacts connected to the third movable contact are arranged, and these fixed An input device comprising: a base on which the sheet with the movable contact is stacked in correspondence with the contact.

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