JP2002157941A - Movable contact body and its manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a high-quality movable contact body used for the operation panel or the like of a portable communication apparatus fitted with filmed contact members each holding a dome-like movable contact point on a format insulating film at a narrow pitch. SOLUTION: The central apex section of the dome-like movable contact point 4 is stuck and held on the flexible insulating film 3 having a format size by an adhesive section 3A on the lower face of the insulating film 3 to form the filmed contact member 2. The filmed contact member 2 is fitted correspondingly to a hole 22A provided on a substrate 21. The outer peripheral section of the insulating film 3 of the filmed contact member 2 fitted correspondingly to the hole 22A is cut out to form a hole 22B, and the filmed contact member 2 is fitted correspondingly to the hole 22B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable contact body used for a portable communication device such as a portable telephone and an operation panel of an electronic device, and a method of manufacturing the same.

[0002]

2. Description of the Related Art In recent years, small and thin portable communication devices such as mobile phones have become widespread, and thin and lightweight movable contact bodies used for an operation panel portion thereof are preferred. It has become.

FIG. 17 is an exploded perspective view of a conventional movable contact body, and FIG. 18 is a sectional view of a panel switch using the same movable contact body. The configuration will be described with reference to FIGS.

In FIGS. 17 and 18, reference numeral 1 denotes an insulating base material having a plurality of holes 1A at predetermined positions.

[0005] And 2 is a contact member with a film,
The configuration is such that the adhesive is applied to the lower surface and the adhesive portion 3A is formed. The fixed, substantially square flexible insulating film 3 has a central apex portion of the dome-shaped movable contact 4 made of a thin metal plate. Are adhesively held by the adhesive portion 3A.

As the insulating film 3, one having a dimension on one side larger than the diameter of the dome-shaped movable contact 4 is used.
The dome-shaped movable contact 4 is adhesively held at its center position.

Then, the lower end of the dome-shaped movable contact 4 of the contact member with film 2 is housed in the hole 1A of the substrate 1 so that the dome-shaped movable contact 4 of the insulating film 3 is formed. The portion of the adhesive portion 3A at the outer peripheral position is adhesively fixed to the upper surface of the base material 1, and the contact member with film 2
Are attached to the plurality of holes 1A of the base material 1, respectively.

[0008] The conventional movable contact body constructed as described above is usually manufactured by the following manufacturing method in order to keep up with the recent price reduction of portable communication equipment.

In the manufacturing method, first, a predetermined outer shape of the base material 1 and all the holes 1A are collectively formed using a mold or the like, and then, a predetermined insulating film 3 and a dome-shaped movable Contact member with film 2 combined with contact 4
Is mounted so as to correspond to the hole 1A of the base material 1.

At this time, the contact member with a film 2 is mainly formed by using an insulating film 3 having a fixed size and a fixed size, and affixing the insulating film 3 to the substrate 1 one by one. .

In other words, the outer shape of the base material 1 and the position of the hole 1A of the movable contact body are different depending on the outer shape of the operation panel and the arrangement of the operation buttons in the equipment to be used. The shape 1 is formed at once to reduce the manufacturing cost, and by using the contact member with film 2 as a common part, the raw material cost of the member is reduced.

As described above, the mounting of the fixed contact member 2 with a film is performed by using a different hole 1A depending on the type of equipment used.
In general, it is a common practice to input information on the sticking position into a mounting facility and mount the pieces one by one at the locations so as to be able to flexibly cope with the problem.

As shown in FIG. 18, the conventional movable contact members thus constructed are electrically independent from each other at positions corresponding to the lower end of the outer periphery and the rear surface of the central apex of each dome-shaped movable contact 4. It is arranged on a wiring board 11 of a device having a fixed contact 10 (10A and 10B) in a state, and is used as a so-called panel switch.

The dome-shaped movable contact 4 is placed on the fixed contact 10A such that the lower end of the outer periphery of each dome-shaped movable contact 4 is electrically connected to the fixed contact 10A. The back of the central apex is fixed contact 1
It is arranged so as to keep a predetermined interval from 0B.

Next, the operation of the panel switch having the above-described structure will be described. A pressing force is applied from above the insulating film 3 of the contact member with film 2 to invert the dome-shaped movable contact 4 so that the center of the dome-shaped movable contact 4 can be inverted. By bringing the rear surface of the apex into contact with the fixed contact 10B of the corresponding wiring board 11, the fixed contacts 10A and 10A corresponding to the dome-shaped movable contact 4 are formed.
When the pressing force is removed, the dome-shaped movable contact 4 is restored to its original shape by its own restoring force, and the fixed contacts 10A and 10B are again in an electrically independent state. It was going back.

[0016]

However, in the above-mentioned conventional movable contact body and the method of manufacturing the same, the construction cost must be reduced by sharing the used parts and the like, but on the other hand, small-sized portable communication devices and the like are required. In order to respond to the demand for high-density and high-density operation buttons, the fixed contact members 2 with a film had to be arranged at a narrow pitch. The plurality of holes 1A can be formed collectively at a narrow pitch. However, if the holes 1A are set too narrow, the contact members 2 with a film are attached one by one. The outer peripheral portion of the insulating film 3 of the contact member 2 is hung so as to cover a part of another hole 1A adjacent thereto, and then the dome of the contact member 2 with a film mounted in the other hole 1A. The movable contact 4, will be raised rests on the insulating film 3, there is a problem that can not mounted in a normal state, the mounting pitch were those would depend on the size of the insulating film 3.

Although the insulating film 3 can be made smaller and its mounting pitch can be narrowed, in this case, since the adhesive area of the insulating film 3 to the substrate 1 is reduced, Of the insulating film 3 of
This method also had limitations.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems. The present invention relates to a film with a dome-shaped movable contact adhesively held on an adhesive portion formed on the lower surface of an insulating film of a predetermined size. Provided is a high-quality movable contact body in which a contact member with a film is mounted at a plurality of locations at a narrow pitch without being affected by the size of the insulating film even when a contact member is used, and a method of manufacturing the same. The purpose is to do.

[0019]

To achieve the above object, the present invention has the following arrangement.

According to a first aspect of the present invention, there is provided a contact member with a film in which a dome-shaped movable contact made of a thin metal plate is adhesively held by an adhesive portion on a lower surface of a flexible insulating film having a predetermined shape. A plurality of holes are provided, and the contact member with the film is adhesively fixed at the adhesive portion of the insulating film so that the dome-shaped movable contact is housed in each of the holes, and the insulating member is attached and attached. Consisting of a base material, a plurality of holes in the base material are provided in proximity to each other so as not to be connected to each other, and one of the insulating films of the contact member with a film attached and attached corresponding to each of the holes. The movable contact body has a portion corresponding to the other hole adjacent to the hole, and the movable contact body is cut off. The contact member with a film attached corresponding to the predetermined hole hangs over the hole adjacent to the hole. Absolute Because a considerable portion of the conductive film is cut out, the contact member with a film can be arranged in a small area with a small pitch without being affected by the size of the insulating film, and the cutout is formed. Since the portion is only a part of the outer periphery of the insulating film, it has an effect that a high-quality and small-sized one that hardly causes a decrease in the adhesive strength of the insulating film can be easily realized.

According to a second aspect of the present invention, in the first aspect of the invention, a plurality of holes in the base material are arranged substantially linearly,
Either of the insulating films of the contact member with film attached and attached in correspondence with each of the above holes, the portion corresponding to the other adjacent hole is cut out, usually on the same straight line A portion provided with a plurality of operation buttons, for example, a numeric keypad portion of a portable communication device such as a mobile phone can be easily reduced in size, thereby contributing to miniaturization of the portable communication device and the electronic device. It has the effect of being able to.

According to a third aspect of the present invention, in the first aspect of the present invention, the holes of the base material are arranged at three places so as to correspond to the corner positions of the triangle, respectively. Either of the insulating films of the film-attached contact member affixed and attached is cut off at a portion corresponding to another adjacent hole, and the three film-attached contact members are independently separated. By mounting operation buttons that can be operated, there is an effect that a multidirectional operation switch that can be pressed in three directions can be configured in a small size.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the holes of the base material are arranged at four positions so as to correspond to the corner positions of the square, respectively, and correspond to the respective holes. Either of the insulating films of the film-attached contact member affixed and attached, the portion corresponding to the other adjacent hole is cut away, and these four film-attached contact members are independently separated. A multi-directional operation switch that can be pressed in four directions orthogonal to each other, often called a cross key, with a small area. By using this, it is possible to realize a portable communication device having a small cross key that can be satisfactorily operated with a small amount of finger movement.

According to a fifth aspect of the present invention, in the fourth aspect of the invention, in addition to the four holes corresponding to the corners of the square of the base material, the holes are also provided at positions corresponding to the inside of the square. Is formed by attaching a contact member with a film, and a cross key with a push switch in the center can be realized with a small area, and a compact and highly functional portable communication device or electronic device can be realized. Has an action.

According to a sixth aspect of the present invention, there is provided a dome made of a thin metal plate with a first hole formed in an insulating base material and an adhesive portion formed on a lower surface of a flexible insulating film having a predetermined shape. The contact portion with a film adhesively held by the movable contact, the adhesive portion of the outer peripheral portion of the insulating film such that the dome-shaped movable contact is housed in the first hole with respect to the first hole. Attached and attached by attaching on the base material, and subsequently, on the base material, cut out a part of the outer peripheral portion of the insulating film of the contact member with a film attached and attached corresponding to the first hole. As described above, after the second hole that is not connected to the first hole is formed in close proximity, the contact member with the film is placed in the second hole so that the dome-shaped movable contact is housed similarly to the first hole. It is a method of manufacturing a movable contact body to be attached and mounted. The insulating film of the contact member with a film attached to the first hole will have a slight decrease in adhesive strength only by the cutout area, but the other parts can be maintained in a large area and are adhesively fixed to the base material. Along with
The vicinity of the center of the cutout area is adhesively fixed by the insulating film of the contact member with a film attached to the second hole, so that a substantial decrease in adhesive strength between them is performed. A contact member with a film using an insulating film of a predetermined size in a fixed form can be obtained without significantly increasing the number of manufacturing steps. Regardless of this, it has the effect that it can be arranged on the base material at a narrow pitch.

According to a seventh aspect of the present invention, in the invention of the sixth aspect, a first hole is formed in the base material, and a contact member with a film is attached and attached corresponding to the first hole. After forming two second holes in the base material so that each part of the outer peripheral portion of the insulating film of the contact member with a film is cut out, the film is made to correspond to the respective second holes. With a contact member attached.
By forming the first hole and the second hole, which are a total of three, at positions corresponding to the corners of a straight line or a triangle and attaching and attaching the contact member with a film, the contact member with a film is compactly arranged. Can be manufactured.

According to an eighth aspect of the present invention, in the sixth aspect of the present invention, two first holes are formed in the base material, and a contact member with a film is attached and attached to each of the first holes. Then, after forming a second hole in the base material so as to cut out a part of the outer peripheral portion of the insulating film of each of the contact members with a film, the film corresponding to the second hole With a contact member attached.
In addition to obtaining the same effect as the invention described in claim 7, the cut-out state of each insulating film of the contact member with a film is more uniform than that according to the invention described in claim 7, that is, The insulating film of each of the contact members with a film attached to the first hole is cut out only in a small area extending over the second hole, and the notch is centered around the cut-out portion, and the notch is cut out. Since it can be adhesively fixed with the insulating film of the contact member with film attached to the second hole in the state where it is not put, the adhesive strength of each insulating film can be made almost uniform and stable quality Has the effect of being able to.

According to a ninth aspect of the present invention, in the invention according to the sixth aspect, a first hole is formed in the base material, and a contact member with a film is attached and attached in correspondence with the first hole. After forming four second holes in the base material in such a manner that each part of the outer peripheral portion of the insulating film of the contact member with a film is cut out, the film is made to correspond to each of the second holes. With a contact member attached.
The present invention has an effect that a cross key or the like having a push switch at the center can be easily formed with a small area.

According to a tenth aspect of the present invention, in the sixth aspect of the present invention, four first holes are formed in the base material so as to correspond to the corners of the square, respectively. Attach and attach the contact member with film corresponding to one hole, and then cut off a part of the outer peripheral portion of the insulating film of each of the contact members with film at a position corresponding to the inside of the square. After the second hole is formed in the base material, the contact member with a film is attached and attached in correspondence with the second hole, and the same operation as the invention according to claim 9 is obtained. In addition, the cut-off state of each insulating film of the contact member with a film is more uniform than that of the invention according to claim 9, that is, the insulating property of each of the contact members with a film attached to the first hole. Film, second Only a small area of the contact hole is cut off, and the vicinity of the cut-out portion is adhered with the insulating film of the contact member with a film attached to the second hole which is not cut off. Since the insulating films can be fixed, the adhesive strength of each insulating film can be made almost uniform, and the quality can be stabilized.

[0030]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS.

The same components as those described in the section of the related art are denoted by the same reference numerals, and detailed description thereof will be omitted.

(Embodiment 1) Using Embodiment 1,
The invention of the first, second and sixth aspects of the present invention will be particularly described.

FIG. 1 is a perspective view showing an arrangement pattern of a contact member with a film of a movable contact body according to a first embodiment of the present invention, and FIG. 2 is a sectional view of a panel switch constituted by using the movable contact body. In the figure, reference numeral 21 denotes an insulating base material provided with a plurality of circular holes 22 at predetermined positions, and the contact member 2 with a film is attached to each of the holes 22. .

The contact member 2 with a film has the same structure as that of the prior art, that is, a fixed, substantially square-shaped flexible member having an adhesive portion 3A formed by applying an adhesive on its lower surface. The central apex of the dome-shaped movable contact 4 made of a thin metal plate is attached to the adhesive portion 3 with respect to the insulating film 3 having the property.
A is configured to be adhesively held by A.

In the holes 22 of the base material 21, the pitch between the center positions of the holes 22A and 22B is set so that the holes 22A and 22B are not connected to each other. A dimension shorter than the length dimension,
They are provided with the same diameter adjacent to each other.

Then, the predetermined adjacent holes 22A, 22A
2B, the lower end of the dome-shaped movable contact 4 is housed in the holes 22A and 22B, respectively, as shown in FIG. The contact member 2 with a film is attached to each of the holes 22A and 22B by adhesively fixing the adhesive portion 3A at the outer peripheral position.

At this time, the insulating film 3 of the contact member with film 2 attached to the one hole 22A is attached.
Is that a portion of the adhesive film 3A which is notched along the other hole 22B is cut out along the hole 22B, and a portion of the adhesive portion 3A which is located at an outer peripheral position with respect to the dome-shaped movable contact 4 of the insulating film 3 , Is adhesively fixed to the upper surface of the substrate 21.

The insulating film 3 of the contact member with film 2 mounted so as to correspond to the other hole 22B is mounted without any cutout.

The portion of the adhesive portion 3A at the outer peripheral position of the insulating film 3 mounted so as to correspond to the other hole 22B is mounted so as to correspond to the upper surface of the substrate 21 and the one hole 22A. The contact member with film 2 is adhesively fixed so as to overlap the insulating film 3.

The portion where the insulating films 3 are adhesively fixed so as to overlap each other is the portion of the insulating film 3 which is mounted corresponding to the one hole 22A and which is cut out along the hole 22B. And its neighboring portions are overlapped.

The movable contact body according to the present embodiment is configured as described above. Next, a method of manufacturing the movable contact body will be described with reference to the drawings.

First, as shown in FIG. 3, a predetermined outer shape of the base material 21 and one side of adjacent circular holes 22A and 22B arranged at a predetermined narrow pitch using a mold or the like. A plurality of holes 22 other than the holes 22A and the holes 22A and 22B are formed at a time.

At this time, the pitch between the center positions of the holes 22 and the pitch between the center positions of the holes 22 and the holes 22A are determined by the fixed and substantially square-shaped insulating film 3 of the contact member with film 2. It is formed with a dimension larger than the dimension of one side.

Subsequently, as shown in FIG. 4, a contact member 2 with a film, in which a fixed insulating film 3 and a dome-shaped movable contact 4 are combined in advance, is formed in holes 22A and 22 formed in a base material 21. The lower end of the dome-shaped movable contact 4 is housed in each of the holes 22A and 22 so that the adhesive portion 3A of the insulating film 3 is located at an outer peripheral position from the dome-shaped movable contact 4 (see FIG. 4). All parts (not shown) are adhesively fixed to the upper surface of the base material 21, so that the contact member with film 2 is mounted corresponding to the holes 22 </ b> A and 22.

Next, as shown in FIG. 5, the outer peripheral portion of the insulating film 3 of the contact member with film 2 which is mounted so as to correspond to the hole 22A on one side of the base material 21, as shown in FIG. That is, the other side hole 22B that is not connected to the hole 22A is formed so as to be cut off, that is, a part of the outer peripheral portion of the insulating film 3 is cut out along the outer shape of the other hole 22B.

At this time, the insulating film 3 and the substrate 2
The holes 22B are formed by simultaneously punching No. 1 and No. 1.

Thus, the pitch between the center positions of the holes 22A and 22B is formed close to each other at a predetermined narrow pitch smaller than the length of one side of the fixed insulating film 3.

Subsequently, as shown in FIG. 6, the movable contact member shown in FIG. 1 is completed by mounting the contact member with film 2 corresponding to the hole 22B on the other side.

At this time, a part of the insulating film 3 of the contact member with film 2 mounted corresponding to the hole 22B on the other side is replaced with the contact member 2 with film mounted corresponding to the hole 22A on the one side. It is adhesively fixed so as to overlap on the insulating film 3.

That is, the insulating film 3 of the contact member with film 2 attached corresponding to the hole 22A on one side is
The adhesive strength is slightly reduced by the cut-out area, but the vicinity of the cut-out area as a center is a contact point with a film attached corresponding to the hole 22B on the other side. Since it is adhesively fixed so as to be reinforced by the insulating film 3 of the member 2, the influence of a substantial decrease in adhesive force can be hardly generated, and a high-quality material with little fear of peeling of the film-attached contact member 2 can be obtained. Can be.

As described above, according to the above manufacturing method, regardless of the size of the insulating film 3,
, And a high-quality movable contact body in which they are arranged at a smaller pitch than the outer dimensions of the insulating film 3 can be manufactured.

In this manufacturing method, although the cost of the used member does not increase, the cost is slightly increased by the number of steps for forming the hole 22B. However, the movable contact body manufactured by this manufacturing method is As described above, since the contact members with a film 2 can be arranged at a narrow pitch, the utility value thereof is great, including electronic device manufacturers that manufacture devices equipped with the film.

In other words, in recent portable communication devices, the pitch between operation buttons has been gradually narrowed as the overall size has been reduced. This is because it can be adapted easily and flexibly.

As shown in FIG. 2, the movable contact members thus manufactured are electrically independent from each other at the lower end of the outer periphery of the dome-shaped movable contact 4 of the contact member with film 2 and the back surface of the central apex. It is arranged on the wiring board 11 of the used device having the fixed contacts 10 (10A and 10B) in the state and used as a panel switch. The arrangement state and the operation thereof are the same as those of the prior art. Therefore, detailed description is omitted.

As described above, according to the movable contact body and the method of manufacturing the same according to the present embodiment, the contact member with film 2 having the fixed insulating film 3 is replaced with the insulating film 3.
It is possible to easily obtain a high-quality movable contact body that can be arranged at a narrow pitch irrespective of the size, and hardly causes a decrease in the adhesive strength of each insulating film 3.

The insulating film 3 may have a shape other than a substantially square shape, and the holes 22A and 22B may have a shape other than a circle.

(Embodiment 2) Using Embodiment 2,
In particular, the invention according to claims 2, 7, and 8 will be described.

This embodiment is different from the first embodiment in that
A movable contact body in which three contact members with film 2 are linearly arranged at a narrow pitch will be described.

The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted.

FIG. 7 is a perspective view showing an arrangement pattern of a contact member with a film of a movable contact body according to a second embodiment of the present invention.

According to the present embodiment, as shown in the figure, three circular holes 32A to 32C are formed in the base material 31 so as not to be substantially linearly connected to each other in this order, and to be close to each other. The contact member 2 with a film is attached to each of the holes 32A to 32C.

At this time, the pitch between the center positions of the holes 32A and 32B and the pitch between the center positions of the holes 32B and 32C are fixed and have a substantially square-shaped flexibility. The pitch is set smaller than the dimension of one side of the insulating film 3.

The insulating film 3 of the contact member with film 2 mounted in correspondence with the holes 32A and 32C located at both ends of the three holes 32A to 32C has an outer peripheral portion extending over the center hole 32B. 32B is cut out along the outer shape of 32B, and the cut-out portion is a central hole 32B.
The insulating film 3 of the contact member with film 2 in a state where none of the portions is cut out, which is mounted corresponding to
Covered by

In the above-mentioned structure, in the contact member with film 2 mounted in each of the holes 32A to 32C, a plurality of insulating films 3 are provided without providing a plurality of cutouts in a predetermined insulating film 3. Since each of the three insulating films 3 can be cut out in a small range, the adhesive holding force of each of the three insulating films 3 can be made substantially uniform and the difference can be reduced. It is possible to make the insulating film 3 of stable quality with little peeling of the insulating film 3 from the material 31 or the like.

A method of manufacturing the movable contact body according to the present embodiment having the above-described configuration will be described below with reference to the drawings. Is omitted.

First, as shown in FIG. 8, two circular holes 32 which are located outside the base plate 31 using a die or the like to form the above arrangement pattern are formed on the base material 31.
A and 32C are collectively formed, and a contact member 2 with a film in which a fixed, substantially rectangular insulating film 3 and a dome-shaped movable contact 4 are combined in advance is formed in each of the holes 32.
A, 32C.

The contact state of the film-attached contact member 2 is as follows.
The lower end portions of the dome-shaped movable contacts 4 are accommodated in the holes 32A and 32C, respectively, so that the adhesive portions 3A on the outer periphery of the dome-shaped movable contacts 4 of the respective insulating films 3 (FIG. (Not shown) are all parts of the substrate 31
It is adhesively fixed to the upper surface and mounted.

The pitch between the two holes 32A and 32C is set such that the narrowest portion is smaller than the size of one side of the insulating film 3.

Subsequently, as shown in FIG. 9, the base material 31 in this state is not connected to the holes 32A and 32C,
In addition, circular holes 32B located in the center thereof are formed so as to be arranged in a straight line with respect to the outer peripheral portion of the insulating film 3 of the contact member with film 2 mounted in correspondence with the holes 32A and 32C, respectively. FIG. 7 shows a state in which the film-formed contact member 2 is mounted so that a part thereof is cut out and the lower end of the dome-shaped movable contact 4 is accommodated in the hole 32B.

At this time, the cut-out portion of the insulating film 3 of the contact member with film 2 attached to the holes 32A and 32C corresponds to the contact member 2 with film attached to the hole 32B. It will be covered with the insulating film 3.

As described above, according to the present embodiment,
When the contact members with film 2 having the insulating film 3 having a fixed flexibility are arranged in a straight line, they can be arranged at a narrow pitch by the cutout dimension.

The three holes 32A arranged in a straight line are used.
The order of forming the through holes 32C is as follows.
2B, the contact member with film 2 is mounted in correspondence with the film, and thereafter, the holes 32A and 32C are located at positions where the holes 32B are arranged linearly with the hole 32B interposed therebetween in the diametrical direction.
A part of the outer peripheral portion of the insulating film 3 of the contact member with film 2 mounted corresponding to 2B is opened so as to be partially cut out, and the contact members with film 2 are mounted corresponding to the holes 32A and 32C, respectively. May be.

In any case where the three holes 32A to 32C are formed in a straight line, the pitch between the three holes 32A to 32C can be formed at an irregular pitch. What is necessary is to select and determine as appropriate, but those arranged at equal pitches can be used as, for example, those capable of coping with the numeric keypad portion of a mobile phone whose miniaturization is rapidly progressing. This makes it possible to flexibly and easily cope with further downsizing of operation parts such as communication devices.

Further, by expanding the idea of the above manufacturing method,
The same effect can be expected when the contact member with a film is attached to more than three places.

(Embodiment 3) Using Embodiment 3,
In particular, the invention according to claims 3, 7, and 8 of the present invention will be described.

According to the present embodiment, the second embodiment
In this case, three contact members with a film 2 are arranged at corner positions of a triangle at a predetermined pitch, and the description of other parts is omitted.

The same components as those in the second embodiment are denoted by the same reference numerals, and detailed description is omitted.

FIG. 10 is a perspective view showing an arrangement pattern of a contact member with a film of a movable contact body according to a third embodiment of the present invention.

In the figure, reference numeral 41 denotes a base material, and three circular holes 42A to 42C are formed in the base material 41 at positions corresponding to the corners of the triangle at a predetermined pitch so as not to be connected to each other. The contact member 2 with a film is attached to each of these holes 42A to 42C.

It should be noted that the three contact members with film 2 have the same shape, that is, the three contact members with a substantially square-shaped insulating film 3 according to the first embodiment.
And 2 are the same.

As shown in the figure, the pitch between the center positions of the holes 42A and 42B is slightly longer than the length of one side of the substantially square insulating film 3 of the contact member 2 with a film. The contact members with film 2 are mounted so as to correspond to the holes 42A and 42B so that the outer peripheral portions of the insulating films 3 do not overlap with each other.

Further, in each of the insulating films 3 of the contact member with film 2 mounted in correspondence with the holes 42A and 42B in the above state, a part of the outer peripheral portion thereof is formed in the hole 42C.
Is cut along, and the cut-out part is
Any part of the contact member with film 2 mounted corresponding to the hole 42C is covered with the insulating film 3 which is not cut off.

At this time, the pitch between the center positions of the holes 42A and 42C and the pitch between the center positions of the holes 42B and 42C are shorter than the diagonal dimension of the insulating film 3 of the contact member 2 with a film. The dimensions are provided.

The above-mentioned structure has the holes 42A and 4A.
2B, the insulating film 3 of the contact member with film 2 mounted in correspondence with the hole 42C is cut out in a small range, and the insulating film 3 of the contact member with film 2 mounted in correspondence with the hole 42C is not cut off. The difference in shape from the conductive film 3 can be minimized.

For this reason, the difference in the adhesive holding force between the three insulating films 3 can be reduced, and the quality of the insulating film 3 is less likely to peel off from the substrate 41 etc. What can be made stable is the same as that of the second embodiment.

The method of manufacturing the movable contact body according to the present embodiment thus configured is described in Embodiments 1 and 2.
Similarly to the above, only the arrangement pattern will be described below with reference to the drawings.

First, as shown in FIG. 11, two circular holes 42A and 42B are collectively formed at a predetermined pitch in a position where the above arrangement pattern is formed on the base material 41 using a mold or the like. The contact members with film 2 in which the insulating film 3 and the dome-shaped movable contact 4 are combined in advance are respectively attached to the holes 42A and 42B.

At this time, the pitch between the center positions of the holes 42A and 42B is set to be slightly longer than the length of one side of the substantially square insulating film 3 of the contact member with film 2, and the contact member with film is provided. 2 are mounted so as to correspond to the holes 42A and 42B, respectively, so that the insulating films 3 do not overlap with each other so that the opposing sides are substantially parallel to each other with a predetermined gap.

The arrangement of the dome-shaped movable contact 4 of the contact member with film 2 in each of the holes 42A and 42B is the same as in the first and second embodiments.

Then, as shown in FIG. 12, with respect to the base material 41 in the above state, the holes 42A and 42B are positioned at positions corresponding to the corners of the triangle formed by the holes 42A and 42B. An unconnected hole 42C is formed.

At this time, a part of each outer peripheral portion of the insulating film 3 of the contact member with film 2 mounted in correspondence with the holes 42A and 42B (in this case, a predetermined portion of the insulating film 3) is formed by the hole 42C. A hole 42C is formed so as to cut out the vicinity of a corner portion of the contact point. Finally, the contact member 2 with a film is mounted in correspondence with the hole 42C.

That is, the holes 42C can be provided in the holes 42A and 42B at a narrow pitch in the vicinity of the cutout dimensions.

At this time, the insulating film 3 of the contact member with film 2 mounted corresponding to the holes 42A and 42B.
Is covered with the insulating film 3 of the contact member with film 2 attached corresponding to the hole 42C as in the first and second embodiments.

As described above, according to the present embodiment, the contact member with film 2 having the fixed flexible insulating film 3 is placed at the position corresponding to the substantially triangular corner. Regardless of the size of 3, they can be easily arranged at a narrow pitch.

The order in which the three holes 42A to 42C are formed at positions corresponding to the above-mentioned triangular corners is as follows: first, the holes 42C are opened, and the contact members with film 2 are mounted in correspondence with each other. The holes 42A and 42B are formed so as to form a triangle including the hole 42C.
A part of the outer peripheral portion of the insulating film 3 of the contact member with film 2 mounted in correspondence with the above is cut open, and the contact member with film 2 is mounted corresponding to the holes 42A and 42B, respectively. You may.

Alternatively, it may be formed by using the method described in detail in the first embodiment.
B, the contact member with film 2 is mounted correspondingly, and then holes 42C are formed side by side so as to cut out a part of the outer peripheral portion of the insulating film 3 of the contact member with film 2 and formed. The contact film 2 is mounted correspondingly, and finally, the insulating film 3 mounted correspondingly to the hole 42C.
A hole 42A may be formed so as to cut out a part of the outer periphery of the contact member 2, and the contact member 2 with a film may be mounted correspondingly (see a perspective view in FIG. 13). At this time, the holes 42
A hole 42A may be opened so as to cut out a part of the outer periphery of the insulating film 3 mounted corresponding to B and 42C, and the contact member with film 2 may be mounted correspondingly.

In this case, although the number of manufacturing steps increases, the completed movable contact body has three holes 42A arranged in a triangular shape.
To 42C can be formed close to each other, and the contact member with film 2 can be attached to each of them, so that the arrangement area can be easily reduced.

In the case of using one of the above-described manufacturing methods, the contact member with film 2 disposed at the corner of the triangle can be formed in a small area by being arranged close to each other. Therefore, by mounting operation buttons (not shown) that can independently press and operate them, a small multidirectional operation switch that can be pressed in three directions can be easily realized. .

(Embodiment 4) Using Embodiment 4,
Particularly, the inventions described in claims 4, 5, 9, and 10 of the present invention will be described.

According to the present embodiment, the first embodiment
In contrast to the first to third embodiments, the four contact members 2 with a film are mainly arranged at predetermined corners at square corners and mounted, and the contact members 2 with a film are also mounted at the center thereof. , And the description other than that portion is omitted.

The same components as those in the first to third embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

FIG. 14 is a perspective view showing an arrangement pattern of a contact member with a film of a movable contact body according to a fourth embodiment of the present invention.

In this embodiment, as shown in the figure, five circular holes 52A to 52E formed in a substantially cross shape close to each other so as not to be connected to a base material 51, and contact points with a film are provided. The members 2 are mounted by being adhesively fixed in correspondence with each other.

It is to be noted that the five contact members with film 2 are the same as those in the first to third embodiments.

Then, as shown in FIG.
Out of 2E, holes 52A to 52D are provided at positions corresponding to the square corners.

The dimensions of one side of the square formed by connecting the center positions of the holes 52A to 52D are as follows:
A substantially square insulating film 3 of the contact member 2 with a film
When the contact member 2 with a film is attached to each of the holes 52A to 52D so as to be slightly larger than the length of one side, the opposing outer peripheral portions of the insulating films 3 are set in a parallel relationship with each other. Mounting, that is, mounting without overlapping each other, can reduce management man-hours and the like.

At the center of the square formed by connecting the holes 52A to 52D, the insulating film 3 of the contact member 2 with the film is connected so as not to be connected to any of the holes 52A to 52D. A hole 52E is provided so as to cut out a part of the outer peripheral portion, and the cut-out portion is mounted in correspondence with the hole 52E. The member 2 is covered with the insulating film 3.

With the above configuration, the contact member with film 2 can be arranged in a cross shape with a small arrangement area. In particular, the holes 52A to 52D constituting the outer periphery thereof can be formed.
And the contact member with film 2 mounted corresponding to the hole 52E provided at the center thereof can be easily arranged close to each other.

The above-described structure has holes 52A-5A
The shape of the insulating film 3 of the contact member with film 2 attached to the 2D is cut out in a small range, respectively, and the shape of the uncut insulating film 3 of the contact member with film 2 attached to the hole 52E. Since the difference can be minimized, the difference in the adhesive holding force of each of the five insulating films 3 with respect to the base material 51 can be reduced, and the quality becomes stable, as in the third embodiment. .

Next, the method of manufacturing the movable contact body according to the present embodiment will be described below with reference to the drawings, with only the arrangement pattern thereof.

First, as shown in FIG. 15, four circular holes 52A to 52D are formed at positions where the above arrangement pattern is formed on the base material 51 using a mold or the like so as to correspond to the square corners. Are formed at the same position, and each of the holes 52A-52
In accordance with D, the contact members with film 2 in which the insulating film 3 and the dome-shaped movable contact 4 are combined are mounted.

The arrangement of the dome-shaped movable contact 4 of the contact member with film 2 in each of the holes 52A to 52D is the same as in the first to third embodiments.

Next, as shown in FIG. 16, the base material 51 in the above state is placed at the center of a square formed by the holes 52A to 52D with the same diameter as the holes 52A to 52D. 52E not connected to the holes 52A to 52D
The contact member 2 with a film is mounted so that the lower end portion of the dome-shaped movable contact 4 is accommodated in the hole 52E so as to correspond to the hole 52E.

At this time, in each of the insulating films 3 of the contact members with film 2 attached corresponding to the holes 52A to 52D, a part of the outer peripheral portion located in the square shape is cut out by the hole 52E. Then, the cut-out portions of the respective insulating films 3 are covered with the insulating film 3 of the contact member with film 2 attached corresponding to the holes 52E.

When the center position of the square formed by the holes 52A to 52D and the center position of the hole 52E formed at the center thereof are matched, the distance from the hole 52E to each of the holes 52A to 52D is set. Can be made at equal pitches, making it more versatile.

As described above, according to the present embodiment, the contact member with film 2 having the fixed flexible insulating film 3 is formed into a cross shape regardless of the size of the insulating film 3. It can be easily arranged with a small mounting area.

The above five cross-shaped holes 52A to 52A-5
The order of forming 2E is as follows.
2E, the contact member with film 2 is mounted in correspondence with the film, and then the insulating film of the contact member with film 2 mounted in the four surrounding holes 52A to 52D respectively corresponding to the holes 52E. 3 may be opened so as to be partially cut out, and the contact member with film 2 may be attached to each of the holes 52A to 52D.

In addition, the contact member with a film 2 may be formed by using the method described in detail in the first embodiment. In this case, each of the holes 52A to 52E is attached to an adjacent position. By providing a part of the outer peripheral portion of the insulating film 3 by notching, the hole 52E is formed.
, Including the square holes 52A to 52D arranged in a square shape, can be easily reduced.

In any of the above, the hole 52E may not be provided at the center.

The movable contact body according to the present embodiment is provided with an operation button capable of independently pressing each of the contact members with a film 2 so that, for example, a portable device whose size is rapidly progressing is becoming smaller. In a portable communication device of a telephone, etc., a multi-directional operation switch for moving a cursor which can be operated in four directions orthogonal to each other, a so-called cross key,
And it can be used for a switch portion corresponding to a cross key in which a push switch is also provided at the center, and the arrangement area can be reduced as described above,
The present invention can flexibly and easily cope with further miniaturization of an operation part such as a portable communication device.

Further, the cross key formed by using the movable contact body can be operated with a small amount of finger movement because the pitch between the contact members with film 2 can be narrowed. .

As described above, according to the present invention, even with a contact member with a film provided with a fixed insulating film, the contact member with a film can be arranged at a narrow pitch regardless of the outer shape of the insulating film. Since it is possible to easily realize various arrangement pattern states, it is possible to greatly contribute to downsizing of electronic devices.

Note that the arrangement states of the above-described first to fourth embodiments are merely described as examples, and the present invention is not limited to only these arrangement patterns.

Further, even if the contact members with a film attached corresponding to the respective holes are different, for example, if the insulating films have different sizes and shapes, the present invention is applied to make them have a narrow pitch. It is also possible to arrange in a small mounting area.

[0125]

As described above, according to the present invention, a contact member with a film in which a dome-shaped movable contact is held on an insulating film is mounted at a narrow pitch regardless of the size of the insulating film. Therefore, there is obtained an advantageous effect that a high-quality and small-sized movable contact body can be easily realized.

The use of this movable contact body can also be expected to have the effect that it can flexibly cope with or contribute to the miniaturization of electronic equipment.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an arrangement pattern of a contact member with a film of a movable contact body according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of a panel switch configured using the movable contact body.

FIG. 3 is a view for explaining the manufacturing method.

FIG. 4 is a view for explaining the manufacturing method.

FIG. 5 is a view for explaining the manufacturing method.

FIG. 6 is a diagram illustrating the manufacturing method.

FIG. 7 is a perspective view showing an arrangement pattern of a contact member with a film of a movable contact body according to a second embodiment of the present invention.

FIG. 8 is a view for explaining the manufacturing method.

FIG. 9 is a diagram illustrating the manufacturing method.

FIG. 10 is a perspective view showing an arrangement pattern of a contact member with a film of a movable contact body according to a third embodiment of the present invention.

FIG. 11 is a view for explaining the manufacturing method.

FIG. 12 is a view for explaining the manufacturing method.

FIG. 13 is a perspective view showing an arrangement pattern of a contact member with a film when manufactured by another manufacturing method.

FIG. 14 is a perspective view showing an arrangement pattern of a contact member with a film of a movable contact body according to a fourth embodiment of the present invention.

FIG. 15 is a view for explaining the manufacturing method.

FIG. 16 is a view for explaining the manufacturing method.

FIG. 17 is an exploded perspective view of a conventional movable contact body.

FIG. 18 is a cross-sectional view of a panel switch configured using the movable contact body.

[Explanation of symbols]

2 Contact member with film 3 Insulating film 3A Adhesive part 4 Domed movable contact 10, 10A, 10B Fixed contact 11 Wiring board 21, 31, 41, 51 Base material 22, 22A, 22B, 32A to 32C, 42A to 42
C, 52A-52E hole

Claims (10)

[Claims] 1. A contact member with a film in which a dome-shaped movable contact made of a thin metal plate is adhesively held by an adhesive portion on a lower surface of a flexible insulating film having a predetermined shape, and a plurality of holes are provided. The contact member with the film is adhesively fixed at the adhesive portion of the insulating film so that the dome-shaped movable contact is housed in the hole, and the insulating member is attached and attached. A plurality of holes are provided close to each other so as not to be connected to each other, and one of the insulating films of the contact member with a film attached and attached to each of the holes corresponds to another adjacent hole. A movable contact body with a part cut away. 2. A plurality of holes of a base material are arranged substantially linearly,
2. The movable contact body according to claim 1, wherein one of the insulating films of the contact member with a film attached and attached to each of the holes has a portion corresponding to another adjacent hole cut out. 3. The insulating film of a contact member with a film, wherein holes of a base material are arranged at three places so as to correspond to corner positions of a triangle, respectively, and are attached to correspond to the respective holes. The movable contact body according to claim 1, wherein one of the movable contact bodies has a portion corresponding to another adjacent hole cut out. 4. The insulating film of a contact member with a film, wherein holes of a base material are arranged at four places so as to correspond to corner positions of a quadrangle, respectively, and are attached to correspond to the respective holes. The movable contact body according to claim 1, wherein one of the movable contact bodies has a portion corresponding to another adjacent hole cut out. 5. A contact member with a film, wherein holes are formed at positions corresponding to the inside of the square in addition to the four holes corresponding to the corners of the square of the base material. The movable contact body as described in the above. 6. A dome-shaped movable contact made of a thin metal plate is adhesively held by an adhesive portion formed on a lower surface of a flexible insulating film having a predetermined shape in which a first hole is formed in an insulating base material. The adhesive portion of the outer peripheral portion of the insulating film is attached to the base material such that the dome-shaped movable contact is housed in the first hole with respect to the first hole. The first hole is attached to the base material so as to cut out a part of the outer peripheral portion of the insulating film of the contact member with a film attached and attached to the base material in correspondence with the first hole. After forming a second hole that is not connected with the second hole in close proximity, the contact member with a film is attached and attached to the second hole so that the dome-shaped movable contact is housed in the same manner as the first hole. Production method. 7. A first hole is formed in a base material, and a contact member with a film is attached and attached corresponding to the first hole, and subsequently, a part of an outer peripheral portion of the insulating film of the contact member with a film. 7. The movable contact body according to claim 6, wherein after forming two second holes in the base material such that each of the second holes is cut out, the contact member with a film is attached and attached so as to correspond to each of the second holes. Manufacturing method. 8. A base material having two first holes formed therein, and affixing and attaching a contact member with a film corresponding to each of the first holes, and subsequently insulating the contact members with a film. 7. The movable contact body according to claim 6, wherein a second hole is formed in the base material so that a part of an outer peripheral portion of the film is cut out, and then the contact member with a film is attached to correspond to the second hole. Manufacturing method. 9. A first hole is formed in a base material, and a contact member with a film is attached and attached corresponding to the first hole, and subsequently, a part of an outer peripheral portion of the insulating film of the contact member with a film. 7. The movable contact body according to claim 6, wherein after forming four second holes in the base material so that each of the second holes is cut off, the contact member with a film is attached and attached to each of the second holes. Manufacturing method. 10. A base material having four first holes, each of which is formed so as to correspond to a corner position of a square, and affixing a contact member with a film corresponding to each of the first holes, Subsequently, at a position corresponding to the inside of the square, a second hole is formed in the base material by cutting out a part of the outer peripheral portion of the insulating film of each of the contact members with a film. The method for manufacturing a movable contact body according to claim 6, wherein the contact member with a film is attached and attached so as to correspond to the two holes.