JPH05234460A - Keyboard switch - Google Patents

Abstract

PURPOSE:To provide a keyboard switch having excellent assembly characteristics of plural key tops and an excellent drip-proof effect against such a liquid as water or the like. CONSTITUTION:A first macromolecular film 10 is arranged against the surface of a sheet switch 3 forming a flat-plate-shaped one having plural switch portions (contact portions) 3a. Each of key tops 4 made of hard resin and having marks such as numerals or the like respectively expressed on their top faces is fixed to the surface of the first macromolecular film 10 in the position thereof corresponding to each of the switch portions (the contact portions) 3a of the sheet switch so that the first macromolecular film 10, and the plural key tops 4 may be constructed in one united body. A second macromolecular film 13 formed with a conductive pattern is arranged against the reverse face of the sheet switch 3. Each of light emitting elements 7 connected electrically to the conductive pattern is mounted onto the surface of the second macromolecular film 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyboard switch which is operated by a plurality of key tops.

[0002]

2. Description of the Related Art FIG. 11 is a catalog of "Panel Switch" (catalog number PSW-00) of Japan Aviation Electronics Industry, Ltd.
1, 1 October 1989) is a structural cross-sectional view of a conventional switch, in which 1 is an outer housing provided with a plurality of through holes 1a, 2 is a frame made of a transparent material, and 3 is The switch is a sheet-like switch having a plurality of switch portions, and each switch portion is arranged at a position facing the through hole 1a of the outer housing 1. Reference numeral 4 is a key top provided corresponding to the switch portion (contact portion) of this sheet-like switch, each of which is mounted so as to be able to move vertically through the through hole 1a of the outer housing 1 and has a projection on the lower surface. 4a is provided.

Reference numeral 5 is between the key top and the sheet-like switch 3, and its circumference is the sheet-like switch 3,
A dome-shaped leaf spring arranged so that its apex is in contact with the protrusion 4a of the key top 4, 6 is a printed circuit board on which an electrode pattern (not shown) is formed, and 7 is solder to the electrode pattern of this printed circuit board. It is electrically connected to the frame 2 through the sheet-like switch 3 by being attached.
Is a light emitting (LED) element embedded in.

Next, the operation of the switch thus constructed will be described. First, regarding the switch operation of the sheet-like switch 3, when the key top 4 is in a steady state, the contact of the switch portion of the sheet-like switch 3 facing the key top 4 is open, and the sheet-like switch 3
The switch section of is in the OFF state. On the other hand, by applying a voltage from the end of the electrode pattern formed on the printed circuit board 6 which is provided separately from the electric circuit of the switch part of the sheet-like switch 3, the LED element 7 is turned on. The LED element 7 emits light, and the light passes through the inside of the frame 2 and illuminates the upper surface of the key top 4, thereby improving the visibility such as the display of the upper surface of the key top 4.

And, any key top 4 which is illuminated
By pushing down, the protrusion 4a formed on the lower part of the key top 4 begins to push down the leaf spring 5 provided therewith, and since the leaf spring 5 has a dome shape with its fulcrum as its circumference, it exceeds a certain point. When it is further pushed down, it is reversed and the movable sheet of the switch portion of the sheet-like switch 3 facing the key top 4 is pushed down. As a result, the contacts of the switch section of the sheet-like switch 3 come into contact with each other, and the switch section of the sheet-like switch 3 is turned on.

Further, as a switch of this type, Japanese Patent Laid-Open No. 1-
There is one disclosed in Japanese Patent No. 235108. FIG. 12 is shown in this publication.
Reference numerals 7 to 7 show the same or corresponding portions as those of the conventional example shown in FIG. 11, and 8 is a key top body integrally molded of rubber, and a plurality of key tops are connected by thin portions 8a. Is. Reference numeral 9 denotes a hard protrusion integrally formed on the lower portion of each of the key tops of the key top body, and is provided so as to engage with a recess formed at the center of the leaf spring 5 at the lower end.

Even in the switch thus constructed, as in the conventional example shown in FIG. 11, in the steady state, the switch portion of the sheet-like switch 3 is in the OFF state and is illuminated. By pushing down the key top of the key top body 8, the leaf spring 5 provided with the projection 9 formed on the lower part of the key top is pushed down and inverted, and the switch portion of the sheet-like switch 3 facing the key top. The switch portion of the sheet-like switch 3 is turned on by pushing down the movable sheet.

[0008]

However, in the conventional example shown in FIG. 11, since the key tops 4 are separate and independent, the top surface of the key tops 4 is assembled when the keyboard switch is assembled. The workability is poor, such as having to install each one carefully while paying attention to the direction of the design. Also, if a liquid such as water is spilled, the key top 4
There is a problem that the liquid enters through the through hole 1a of the outer casing 1 into which the liquid is inserted.

Further, in the conventional example shown in FIG. 12, although the above problems of the conventional example shown in FIG. 11 are solved, in order to integrally mold the key top body 8, for example, silicon is used. Since a soft rubber such as rubber is used,
When the key top of the key top body 8 is pushed down, when the hard protrusion 9 attached to the key top portion pushes down the leaf spring 5, the key top body 8 is not deformed and the protrusion 9 does not drop straight downward, There is a problem that the operating force is relaxed because the pressure to 5 is released, or the reversing operation force of the leaf spring 5 is relaxed, and the operational feeling is deteriorated.

Further, in both of the above-mentioned conventional examples, since the LED element 7 is mounted on the printed circuit board 6 which also functions as a reinforcing plate, the outer housing 1, the LED element 7 and the printed circuit board 6 are provided. The total thickness of the three parts was the thickness of the keyboard switch, and it was difficult to make it thinner. Furthermore, in both of the above-mentioned conventional examples, a frame 2 which is a light guide body for guiding the light from the LED element 7 to the keytop 4 is required between the outer housing 1 and the sheet-shaped switch 3. In order to reduce the thickness of the keyboard switch, the frame 2 must be thinned. However, if the frame 2 is thinned, the processing accuracy of the end face is deteriorated, and the light from the LED element 7 causes irregular reflection on the end face to cause the key top 4 Since the visibility from the top surface of the frame is reduced, and if it is attempted to improve the processing accuracy of the end surface of the frame 2 in order to prevent the reduction in the visibility, the processing is very difficult and the workability is poor because it is thin. It was something that

The present invention has been made in view of the above points, and an object of the present invention is to obtain a keyboard switch having a good assembling property of a plurality of key tops and an excellent drip-proof effect against a liquid such as water. is there. A second object is to obtain a keyboard switch that is thin. Further, a third object is to obtain a keyboard switch which can secure a sufficient operational feeling. Further, a fourth object is to obtain a keyboard switch having sufficient visibility.

[0012]

A keyboard switch according to a first aspect of the present invention is a flat-plate switch having a plurality of switch parts, and a polymer film arranged to face the surface of the flat-plate switch. And a plurality of key tops, each fixed to the surface of the polymer film, at positions facing the respective switch parts.

A keyboard switch according to a second aspect of the present invention is a flat-plate switch having a plurality of switch portions, and a first transparent high-pitch switch disposed so as to face the surface of the flat-plate switch. The molecular film, a plurality of light-transmissive key tops fixed to positions on the surface of the first polymer film facing the respective switch parts, and arranged on the back surface of the flat plate-shaped switch to face the conductive film. A second polymer film having a pattern formed thereon, and the second polymer film.
A plurality of light emitting elements mounted on the front surface of the polymer film, and a plurality of holes provided between the back surface of the flat switch and the front surface of the second polymer film, into which the respective light emitting elements are respectively inserted. The reinforcing plate is provided.

A keyboard switch according to a third aspect of the present invention is a switch having a flat plate switch having a plurality of switch portions and a flat switch having a tip end portion arranged to face the surface of the flat plate switch. And a plurality of key tops respectively fixed to the surface of the polymer film at positions facing the respective switch portions on the surface of the polymer film.

A keyboard switch according to a fourth aspect of the present invention is a flat-plate switch having a plurality of switch parts, and is arranged so as to face the surface of the flat-plate switch. A first polymer film having a plurality of formed through holes for light emitting elements, and a first polymer film fixed on the surface of the first polymer film at positions facing the respective switch parts, A plurality of key tops having light emitting element accommodating holes formed at positions facing the light emitting element through holes of the film, and a second key top provided with a conductive pattern formed on the back surface of the first polymer film. Of the polymer film and the second polymer film, which are mounted on the surface of the second polymer film at positions facing the through holes for the light emitting element, and penetrate through the through holes for the light emitting element facing each other. The light emitting element housing hole facing the front end portion is provided with a plurality of light emitting elements arranged at the apex thereof with the light emitting element housing hole and a gap equal to or larger than the operating distance of the flat switch. ..

A keyboard switch according to a fifth aspect of the present invention is a flat-plate switch having a plurality of switch parts, and is arranged so as to face the surface of the flat-plate switch. A key top body integrally formed with a plurality of key tops each having a hole for storing a light emitting element formed therein, and a polymer film having a conductive pattern formed so as to face the back surface of the key top body. It is mounted on the surface of the polymer film at a position facing the light emitting element housing holes, the tips are housed in the light emitting element housing holes facing each other, and the apex is the operation of the light emitting element housing hole and the flat switch. A plurality of light emitting elements arranged with a gap equal to or greater than the distance are provided.

A keyboard switch according to a sixth aspect of the present invention is a flat plate switch having a plurality of switch portions and having a conductive pattern formed on the surface thereof, and is arranged to face the surface of the flat plate switch. And a polymer film having a plurality of through holes for light emitting elements formed at the positions facing the respective switch parts, and fixed on the surface of the polymer film at the positions facing the respective switch parts, respectively. A plurality of key tops each having a hole for storing a light emitting element formed at a position facing the through hole for the light emitting element of the polymer film, and mounted on the surface of the flat switch at a position facing the through hole for the light emitting element, Each of them penetrates through the light-emitting element through-holes that face each other, and the tips are housed in the light-emitting element housing holes that face each other. Tsu has an operating distance or gap Ji is provided with a and arranged plurality of light emitting elements.

A keyboard switch according to a seventh aspect of the present invention is a flat plate switch having a plurality of switch parts and having a conductive pattern formed on the surface thereof, and is arranged so as to face the surface of the flat plate switch. And a key top body integrally formed with a plurality of key tops each formed at a position facing each switch part and having a hole for storing a light emitting element, and a hole for storing a light emitting element on the surface of the flat switch. Are mounted at positions facing each other, the tip portions are housed in the light emitting element housing holes facing each other, and the apex is arranged with a gap equal to or more than the operating distance between the light emitting element housing hole and the flat switch. A plurality of light emitting elements are provided.

[0019]

In the first aspect of the present invention, the polymer film fixes a plurality of key tops to enhance the assembling and workability, and covers the entire flat plate switch to a flat plate switch such as water. Prevent intrusion.

According to the second aspect of the present invention, the first polymer film fixes a plurality of key tops to improve the assemblability, and covers the entire surface of the flat plate-shaped switch to form a flat plate-shaped switch such as water. The second polymer film on which the conductive pattern is formed suppresses the invasion, and mounts the plurality of light emitting elements to reduce the thickness.

According to the third aspect of the present invention, a polymer film fixes a plurality of key tops to improve the assemblability and workability, and at the same time, covers the entire flat plate switch to a flat plate switch such as water. Intrusion is suppressed, and the protrusions of the polymer film are thinned.

According to a fourth aspect of the present invention, the first polymer film fixes a plurality of key tops to improve the assembling property and workability, and also covers the entire flat plate-shaped switch to form a flat plate such as water. A second polymer film on which a conductive pattern is formed is mounted on a plurality of light emitting elements while suppressing the intrusion into the switch, and the light emitting elements are housed in the light emitting element housing holes of the key tops to be thinned.

In the fifth aspect of the present invention, the key top body formed by integrally molding a plurality of key tops improves the assemblability and workability, and covers the entire flat plate switch to a flat plate switch such as water. A polymer film having a conductive pattern formed thereon is provided with a plurality of light-emitting elements to suppress the intrusion, and the light-emitting elements are housed in the key-top hole for storing the light-emitting elements to be made thin.

According to the sixth aspect of the present invention, a polymer film fixes a plurality of key tops to enhance the assemblability and workability, and covers the entire flat plate-shaped switch to form a flat plate-shaped switch such as water. A plurality of light emitting elements are mounted on the flat switch in which the intrusion is suppressed and a conductive pattern is formed, and the light emitting elements are accommodated in the light emitting element accommodating holes of the key tops to be made thin.

According to the seventh aspect of the present invention, the key top body formed by integrally molding a plurality of key tops improves the assembling property and workability, and covers the entire flat plate switch to a flat switch such as water. A plurality of light emitting elements are mounted on the flat switch in which the intrusion is suppressed and a conductive pattern is formed, and the light emitting elements are accommodated in the light emitting element accommodating holes of the key tops to be made thin.

[0026]

【Example】

Example 1. 1 and 2 show Embodiment 1 of the present invention, in which 1 is an outer casing provided with a plurality of through holes 1a, and 2 is a frame made of a transparent material. Through hole 2 at a position facing each through hole 1a of
a is formed. Reference numeral 3 is a sheet-like switch which is a flat plate-shaped switch having a plurality of switch portions 3a, and includes a movable sheet having a movable contact fixed to the switch portion 3a, a fixed sheet having a fixed contact fixed to the switch portion 3a, and these movable sheets. It is configured by a plate body sandwiched between a sheet and a fixed sheet, and the same number of through holes 3b are formed corresponding to the through holes 1a of the outer casing 1.

4 is made of a transparent hard material, for example, a hard resin such as acrylic resin, which is arranged corresponding to the switch portion (contact portion) of this sheet-like switch, and the design such as numbers is displayed on the upper surface. Each of the key tops is mounted so that it can move up and down through hole 1a of outer casing 1, and projections 4a are provided on the lower surface. Reference numeral 5 denotes a dome-shaped leaf spring which is arranged between the key top and the sheet-shaped switch 3 such that the circumference thereof is in contact with the sheet-shaped switch 3 and the apex is in contact with the protrusion 4a of the key-top 4. Reference numeral 10 denotes a first polymer film formed of a translucent polyester film or the like arranged facing the surface of the sheet-shaped switch 3, and a position on the surface facing each switch portion 3a of the sheet-shaped switch 3. The key tops 4 are fixed to each other with an adhesive 11 and sandwiched between the back surface of the outer casing 1 and the frame 2, and the through holes 10a through which the protrusions 4a of the key tops 4 penetrate. Are formed.

Reference numeral 12 denotes a reinforcing plate having the sheet-like switch 3 mounted on the front surface thereof and having a through hole 12a formed so as to face the through-hole 3b of the sheet-like switch 3, and 13 faces the back surface of the sheet-like switch 3. The second polymer film made of a polyimide film or the like, which is disposed on the reinforcing plate, has a conductive pattern formed thereon, and the light emitting elements 7 are provided on the surface at positions facing the through holes 12a of the reinforcing plate 12, respectively. Is attached and is electrically connected to the conductive pattern, and the attached light emitting element 7 faces the through hole 12a of the reinforcing plate 12 and the through hole 3 of the sheet-like switch 3.
b is made to penetrate and it is made to project to the frame 2.

Next, the operation of the keyboard switch thus constructed will be described. First, regarding the switch operation of the sheet-like switch 3, when the key top 4 is in a steady state, the contact of the switch portion 3a of the sheet-like switch 3 facing the key top 4 is open, and the sheet-like switch is The switch unit 3a of No. 3 is in the OFF state.
On the other hand, the second polymer film 13 provided separately from the electric circuit of the switch portion 3a of the sheet-shaped switch 3 is provided.
By applying a voltage from the end of the conductive pattern formed on the LED element 7, the LED element 7 is energized,
The D element 7 emits light, and the light directly and through the inside of the frame 2 illuminates the upper surface of the key top 4, and the key top 4
The visibility such as the display on the top surface of is improved.

And any illuminated key top 4
By pressing down, the first polymer film 10 bends around the end of the frame 2 as a fulcrum, and the key top 4 moves downward, and the protrusion 4a formed under the key top 4 is provided. When the leaf spring 5 starts to be pushed down and has a dome shape with its fulcrum as its circumference, when it is further pushed down beyond a certain point, the leaf spring 5 is inverted and the sheet-like switch 3 facing the key top 4 is pushed. The movable sheet of the switch part 3a is pushed down. As a result, the contacts of the switch portion 3a of the sheet-shaped switch 3 come into contact with each other, and the switch portion 3a of the sheet-shaped switch 3 is turned on.

In assembling this keyboard switch, the plurality of key tops 4 are attached to the first polymer film 10.
The key tops 4 are fixed to each other with an adhesive 11 to be integrated, and the integrated key tops 4 can be collectively attached to the back surface of the outer housing 1, and the assembling workability is good. In addition, since the first polymer film 10 is mounted on the entire surface between the outer housing 1 and the frame 2, liquid such as water is prevented from entering the inside through the through hole 1a of the outer housing 1, and the drip-proof structure is provided. It has become. Moreover, since the key top 4 is made of a hard material, the key top 4 is not deformed and moves straight downward, so that the feeling of operation is not deteriorated. Further, the LED element 7 is mounted on the second polymer film 13 on which the conductive pattern is formed.
Is arranged side by side with the reinforcing plate 12, that is, has a structure penetrating therethrough, so that the keyboard switch as a whole can be made thinner.

Example 2. 3 and 4 show Embodiment 2 of the present invention, which is different from Embodiment 1 described above in that the frame 2 is not used and the first polymer film 10 has a sheet-shaped switch 3 with a tip portion. It is assumed that a plurality of protrusions 14 contacting the surface other than the switch portion 3a are formed, and these protrusions 14 function as spacers. Molding of the plurality of protrusions 14 is performed by a method generally called embossing, and the protrusions 14 are formed by pressing with a mold.

The second embodiment also operates in the same manner as the above-mentioned embodiment and has the same effects. Further, in the second embodiment, since the frame 2 is not required, the number of parts can be reduced and further thinning can be achieved.

In the above-mentioned Examples 1 and 2, the key tops 4 are made of acrylic resin, but other hard resins may be used, and the first polymer film 10 may be made of polyester film. Although the polyimide film is used as the second polymer film 13 in the above, other polymer films may be used. Although the sheet-like switch is used as the flat-plate switch, any structure may be used as long as it can detect pressure and displacement. Furthermore, the key top 4 is shown as fixed to the first polymer film 10 with the adhesive agent 11.
The key top 4 is attached to the first polymer film 1 by fusion or the like.
It may be fixed to 0. Furthermore, the shape of the protrusion 14 in the second embodiment described above may be any shape as long as it does not hinder the light guide between the light emitting element 5 and the key top 4. is there.

Example 3. 5 and 6 show Embodiment 3 of the present invention, in which 1 is a plurality of through holes 1
An outer casing 2 provided with a is a first frame, and a through hole 2a is provided at a position facing each through hole 1a of the outer casing 1.
Are formed. 3 is a plurality of switch parts 3
a sheet-like switch that is a flat-plate switch having a,
A movable sheet having a movable contact fixed to the switch portion 3a,
A fixed sheet having fixed contacts fixed to the switch portion 3a,
It is composed of a plate body sandwiched between the movable sheet and the fixed sheet.

Reference numeral 4 is made of a transparent hard material, for example, a hard resin such as acrylic resin, which is arranged corresponding to the switch portion (contact portion) of this sheet-like switch, and the design such as numbers is displayed on the upper surface. Key tops, which are through holes 1a of the outer casing 1 and through holes 2 of the frame 2, respectively.
It is mounted so that a can be moved up and down, a projection 4a is provided on the lower surface, and a light emitting element housing hole 4b is formed in the lower portion. Reference numeral 5 is between the key top and the sheet-like switch 3, the circumference thereof is the sheet-like switch 3, and the apex is the key-top 4
The dome-shaped leaf spring 10 arranged so as to be in contact with the protrusion 4 a of the first sheet is a first polymer film made of a polyester film having a light-transmitting property and arranged so as to face the surface of the sheet-shaped switch 3. The key tops 4 are fixed on the front surface at positions facing the respective switch portions 3a of the sheet-like switch 3 with an adhesive and are sandwiched between the rear surface of the outer housing 1 and the front surface of the frame 2. The key top 4 has a protruding portion 4a which penetrates the key top 4 and a hole 4b for accommodating the light emitting element of the key top 4
The through hole 10a for the light emitting element is formed so as to face with.

Reference numeral 12 denotes a reinforcing plate having the above-mentioned sheet-like switch 3 mounted on the front surface thereof, and 13 is disposed so as to face the back surface of the first polymer film 10 and to contact the back surface of the frame 2 for conducting. A second polymer film made of a patterned polyimide film or the like is formed with a hole 13a through which the tip of the leaf spring 5 penetrates,
Hole 4b for storing the light emitting element of the key top 4 on the surface
And each of the light emitting elements 7 is mounted at a position facing the through hole 10a for the light emitting element of the first polymer film 10 and electrically connected to a conductive pattern, and the mounted light emitting element 7 faces the above-mentioned light emission. The tip portion is housed in the light emitting element housing hole 4b which penetrates through the element through hole 10a and is opposed to the element through hole 10a, and the apex 7a is a gap A which is not less than the operating distance between the light emitting element housing hole 4b and the flat plate-shaped switch 3.
Are arranged.

A second frame 14 is sandwiched between the back surface of the second polymer film 13 and the front surface of the reinforcing plate 12, and is located at a position facing the plate spring 5. 5 is formed with a hole 14a penetrating therethrough.

Next, the operation of the keyboard switch thus constructed will be described. First, regarding the switch operation of the sheet-like switch 3, when the key top 4 is in a steady state, the contact of the switch portion 3a of the sheet-like switch 3 facing the key top 4 is open, and the sheet-like switch is The switch unit 3a of No. 3 is in the OFF state.
Further, between the light emitting element housing hole 4 b of the key top 4 and the apex of the light emitting element 7, there is a gap A which is equal to or larger than the operating distance of the flat switch 3. On the other hand, by applying a voltage from the end of the conductive pattern formed on the second polymer film 13 provided separately from the electric circuit of the switch portion 3a of the sheet-like switch 3, the LED element 7 is driven. In the energized state, the LED element 7 emits light, and the light directly passes through the inside of the key top to illuminate its upper surface, and the accuracy of the display of the upper surface of the key top 4 is greatly improved and the visibility is improved. Is increasing.

And, any key top 4 which is illuminated
By pressing down, the first polymer film 10 bends around the end of the frame 2 as a fulcrum, and the key top 4 moves downward, and the protrusion 4a formed under the key top 4 is provided. When the leaf spring 5 begins to push down and the leaf spring 5 is dome-shaped with its fulcrum as its circumference, when it is further pushed down beyond a certain point, the leaf spring 5 reverses and switches to the switch of the sheet-like switch 3 facing the key top 4. The movable sheet of the portion 3a is pushed down. As a result, the contacts of the switch portion 3a of the sheet-shaped switch 3 come into contact with each other, and the switch portion 3a of the sheet-shaped switch 3 is turned on.

In this keyboard switch assembly, a plurality of key tops 4 are fixed to the first polymer film 10 with an adhesive to be integrated, and the integrated key tops 4 are collectively packaged in the outer casing 1. It can be mounted on the back side and has good workability in assembly. Further, since the first polymer film 10 is mounted on the entire surface between the outer casing 1 and the frame 2, the liquid such as water is prevented from entering the inside through the through hole 1a of the outer casing 1, and the drip-proof structure is provided. It has become.

Moreover, since the key top 4 is made of a hard material, the key top 4 is not deformed and moves straight downward, so that the operation feeling is not deteriorated. Further, the LED element 7 is mounted on the second polymer film 13 on which the conductive pattern is formed, the LED element 7 penetrates the frame 2, and the apex for accommodating the light emitting element of the key top 4 with a predetermined gap A therebetween. Since the tip portion is housed in the hole 4b, sufficient brightness can be obtained on the upper surface of the key top 4, and the keyboard switch as a whole can be made thin without hindering the switch operation of the key top 4. It is a thing. Further, since the frame 2 does not need to guide the light from the light emitting element 7 unlike the conventional example,
The material does not necessarily need to be translucent, and the end face does not need to be processed with extremely high processing accuracy, so that workability is improved and further thinning can be achieved.

Example 4. FIG. 7 shows Embodiment 4 of the present invention, in which the key top 4 of Embodiment 3 described above is used.
In place of the integral structure of the first polymer film 10 and the first polymer film 10, the key top body 8 is integrally molded with rubber. The key top body 8 has a plurality of key tops 8b and a thin portion 8a for connecting between the key tops 8b, and the key tops 8b have the same projections 4a as those in the third embodiment and The light emitting element housing hole 4b is formed. The fourth embodiment also operates in the same manner as the above-described embodiment and has the same effects.

In the above-mentioned third embodiment,
Although the one using the acrylic resin is shown as the key top 4, another hard resin may be used, and the one using the polyester film as the first polymer film 10 is shown. It's good.
In addition, in the above-mentioned third and fourth embodiments,
Although the polyimide film is used as the second polymer film 13, another polymer film may be used, and the sheet switch is used as the flat switch 3, but the pressure is Also, any structure may be used as long as it can detect displacement. Further, the key top 4 is attached to the first polymer film 1
In FIG. 0, the one fixed with the adhesive 11 is shown, but the key top 4 may be fixed to the first polymer film 10 by fusion or the like.

Example 5. 8 and 9 show Embodiment 5 of the present invention, which is different from Embodiment 3 described above in that the second polymer film 13 and the frame 14 are not used, and the sheet-like switch is a flat sheet-like switch. It is assumed that a conductive pattern is formed on the surface of the movable sheet 3c of the switch 3, and the movable sheet has the function of the second polymer film in the third embodiment.

The fifth embodiment also operates in the same manner as the above-mentioned embodiment and has the same effects. Further, in the example 5, since the second polymer film 13 and the frame 14 are not required, the number of parts is reduced and further thinning is achieved. is there.

Example 6. FIG. 10 shows Embodiment 6 of the present invention, in which the key top body 8 integrally molded of rubber is used instead of the integral construction of the key top 4 and the polymer film 10 of Embodiment 5 described above. Is. The key top body 8 has a plurality of key tops 8b and a thin portion 8a for connecting between the key tops 8b, and the key tops 8b have the same protrusions 4a as those in the fifth embodiment. The light emitting element housing hole 4b is formed. The sixth embodiment also operates in the same manner as the above-described embodiment and has the same effects.

In the above-mentioned fifth embodiment,
Although an acrylic resin is used as the key top 4, another hard resin may be used, and the polymer film 10 may be used.
Although the one using a polyester film is shown as
Other polymer films may also be used. Also,
Although the sheet-like switch is used as the flat-plate switch 3 in the above-mentioned fifth and sixth embodiments, any structure may be used as long as it can detect pressure and displacement. It is a thing. Further, although the key top 4 is fixed to the polymer film 10 with an adhesive agent, the key top 4 may be fixed to the polymer film 10 by fusion or the like.

[0049]

As described above, the first aspect of the present invention provides a polymer film arranged to face the surface of a flat plate-shaped switch having a plurality of switch portions, and a polymer film of the polymer film. Since a plurality of key tops, which are fixed to each other, are provided at positions facing the respective switch parts on the surface, the plurality of key tops can be handled integrally with the first polymer film, and assembling workability is improved. And first
The polymer film prevents the intrusion of liquid such as water into the inside, does not lower the operational feeling in the switch operation by the key top, and has an effect that the keyboard switch as a whole can be made thinner.

A second invention of the present invention is a first polymer film having a light-transmitting property, which is disposed so as to face a surface of a flat plate-shaped switch having a plurality of switch parts, and the first polymer. A plurality of translucent key tops, which are fixed to each other, are provided on the front surface of the film at positions facing the respective switch parts, and further, are arranged so as to face the back surface of the flat switch, and a conductive pattern is formed. A second polymer film, a plurality of light emitting elements mounted on the surface of the second polymer film, and a light emitting element provided between the back surface of the flat switch and the surface of the second polymer film. Since a reinforcing plate having a plurality of holes respectively inserted therein is provided, a plurality of key tops can be handled integrally with the first polymer film, and assembling workability is improved.
The first polymer film prevents liquid such as water from entering the inside, has no effect on the operation feeling of the switch operation by the keytop, and has the effect of making the keyboard as a whole thinner.

A third aspect of the present invention is arranged so as to face the surface of a flat plate-shaped switch having a plurality of switch parts,
And, a polymer film having a plurality of protrusions whose tip contacts the surface other than the switch of the flat switch,
Since a plurality of key tops, which are fixed to each other, are provided on the surface of the polymer film at positions facing the respective switch parts, the plurality of key tops can be handled integrally with the first polymer film. It does not require a frame, improves assembly workability, prevents the first polymer film from invading liquids such as water, and does not reduce the operational feeling of the switch operation by the key top. The effect is that it can be made thinner.

A fourth aspect of the present invention is arranged so as to face the surface of a flat plate-shaped switch having a plurality of switch parts,
A first polymer film having a plurality of through holes for light-emitting elements formed at positions facing the respective switch parts, and a position facing the respective switch parts on the surface of the first polymer film. A plurality of key tops, each of which is fixed and has a hole for housing the light emitting element formed at a position facing the through hole for the light emitting element of the first polymer film, are provided so as to face the back surface of the first polymer film. A second polymer film that is disposed and has a conductive pattern formed thereon;
The polymer film is mounted at a position facing the through hole for the light emitting element on the surface of the polymer film, each of which penetrates through the through hole for the light emitting element and the tip is housed in the hole for housing the light emitting element facing each other, and the apex is Since the light emitting element housing hole and the plurality of light emitting elements arranged with a gap equal to or larger than the operating distance of the flat switch are provided, a plurality of key tops are integrated with the first polymer film. The handling and assembling workability are improved, the first polymer film prevents the liquid such as water from entering the inside, the operation feeling during the switch operation by the key top is not deteriorated, and the brightness of the upper surface of the key top is improved. The effect is that the keyboard switch as a whole can be made thinner.

A fifth aspect of the present invention is arranged so as to face the surface of a flat plate switch having a plurality of switch parts,
A keytop body formed by integrally molding a plurality of keytops, each of which is formed at a position facing each switch part and having a hole for housing a light emitting element, and the keytop body is disposed so as to face the back surface of the keytop body, The polymer film having a pattern formed thereon is mounted on the surface of the polymer film at a position facing the hole for housing the light emitting device, the tip is housed in the hole for housing the light emitting device facing each other, and the apex is the light emitting device. Since the housing hole and the plurality of light emitting elements arranged with a gap equal to or larger than the operating distance of the flat plate-shaped switch are provided, a plurality of keytops can be handled integrally with the first polymer film. The assembly workability is improved, the first polymer film prevents the liquid such as water from entering the inside, the brightness of the upper surface of the key top is improved, and the thinness of the entire keyboard switch is achieved. There is an effect that can be achieved.

According to a sixth aspect of the present invention, a flat switch having a plurality of switch portions and having a conductive pattern formed on the surface thereof is disposed so as to face the surface of each switch, and each of the switch portions faces the respective switch portions. A polymer film having a plurality of through holes for light emitting elements formed at the positions and fixed to positions on the surface of the polymer film facing the respective switch parts and facing the through holes for light emitting elements of the polymer film. Provided with a plurality of key tops in which holes for storing light-emitting elements are formed, and in the through-holes for light-emitting elements on the surface of the flat switch on which the conductive pattern is formed facing the back surface of the polymer film. Mounted at opposite positions, each penetrates the through hole for the light emitting element, and the tip part is stored in the hole for storing the light emitting element, and the top is the light emitting element storage. Since the holes and the multiple light-emitting elements that are arranged with a gap greater than the operating distance of the flat switch are provided, multiple key tops can be handled integrally with the polymer film, improving assembly workability. However, the polymer film prevents the entry of liquids such as water into the inside, and there is no reduction in the operational feeling during switch operation by the keytop, and since the second frame is not required, the brightness of the upper surface of the keytop is improved and the keyboard There is an effect that the overall thickness can be reduced.

In a seventh aspect of the present invention, a flat switch having a plurality of switch parts and having a conductive pattern formed on the surface thereof is disposed so as to face the surface of the switch, and the switch faces the switch portions. A key top body integrally formed with a plurality of key tops formed at a position and having holes for accommodating light emitting elements, and a flat plate-shaped switch that is arranged so as to face the back surface of the key top body and has a conductive pattern formed thereon. And the flat switch is mounted on the surface of the flat switch at a position opposed to the light emitting element housing hole, the tip portions are housed in the light emitting element housing holes facing each other, and the vertex is the light emitting element housing hole and the flat switch. Since a plurality of light emitting elements arranged with a gap equal to or larger than the working distance of are provided,
Multiple key tops can be handled integrally with the polymer film, assembly workability is improved, the polymer film prevents the entry of liquids such as water into the interior, the brightness of the top of the key top is improved, and the entire keyboard switch There is an effect that it can be made thinner.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of essential parts showing Embodiment 1 of the present invention.

FIG. 3 is an exploded perspective view showing a second embodiment of the present invention.

FIG. 4 is a cross-sectional view of essential parts showing Embodiment 2 of the present invention.

FIG. 5 is an exploded perspective view showing a third embodiment of the present invention.

FIG. 6 is a cross-sectional view of essential parts showing a third embodiment of the present invention.

FIG. 7 is a cross-sectional view of essential parts showing Embodiment 4 of the present invention.

FIG. 8 is an exploded perspective view showing a fifth embodiment of the present invention.

FIG. 9 is a cross-sectional view of essential parts showing a fifth embodiment of the present invention.

FIG. 10 is a cross-sectional view of essential parts showing a sixth embodiment of the present invention.

FIG. 11 is a sectional view of an essential part showing an example of a conventional switch.

FIG. 12 is a cross-sectional view of a main part showing another example of a conventional switch.

[Explanation of symbols]

 3 Flat plate switch 4 Key top 7 Light emitting element 8 Key top body 10 First polymer film 12 Reinforcing plate 13 Second polymer film.

Claims (7)

[Claims] 1. A flat-plate switch having a plurality of switches, a polymer film arranged to face the surface of the flat-plate switch, and fixed to positions on the surface of the polymer film facing the respective switch parts. Keyboard switch with multiple key tops. 2. A flat-plate switch having a plurality of switch parts, a translucent first polymer film arranged facing the surface of the flat-plate switch, and a surface of the first polymer film. A plurality of translucent key tops, each of which is fixed at a position facing each of the switch parts in, arranged to face the back surface of the flat switch,
A second polymer film having a conductive pattern formed thereon, a plurality of light emitting elements mounted on the surface of the second polymer film, and between the back surface of the flat switch and the surface of the second polymer film. A keyboard switch provided with a reinforcing plate provided with a plurality of holes into which the respective light emitting elements are respectively inserted. 3. A flat plate-shaped switch having a plurality of switch parts, and a plurality of protruding parts which are arranged so as to oppose the surface of the flat plate-shaped switch and whose tips are in contact with surfaces other than the switch parts of the flat plate-shaped switch. Formed polymer film,
A keyboard switch having a plurality of key tops, each of which is fixed to the surface of the polymer film at a position facing each of the switch portions. 4. A flat-plate switch having a plurality of switch parts, and a plurality of through-holes for light-emitting elements, which are arranged so as to face the surface of the flat-plate switch and are formed at positions facing the respective switch parts. Provided on the surface of the first polymer film, and the first polymer film is fixed to the surface of the first polymer film at a position facing each of the switch parts, and faces the through hole for the light emitting element of the first polymer film. Multiple key tops with holes for storing light emitting elements formed at the
Is arranged to face the back surface of the first polymer film,
A second polymer film on which a conductive pattern is formed, and the second polymer film is disposed on the surface of the second polymer film at a position facing the through hole for the light emitting element, and penetrates through the through hole for the light emitting element facing each other. And a plurality of light emitting elements whose tip is housed in the light emitting element housing hole facing each other and whose apex is arranged with a gap equal to or more than the working distance between the light emitting element housing hole and the flat switch. Keyboard switch. 5. A flat-plate switch having a plurality of switch parts, the flat-plate switch being arranged to face the surface of the flat-plate switch, each of which is formed at a position facing each of the switch parts, and has a hole for accommodating a light-emitting element. A key top body formed by integrally molding a plurality of formed key tops, a polymer film which is positioned opposite to the back surface of the key top body and has a conductive pattern formed thereon, and for housing the light emitting element on the surface of the polymer film. The light emitting element is mounted at a position facing the hole, the tip is housed in each of the light emitting element housing holes facing each other, and the apex has a gap equal to or more than the operating distance between the light emitting element housing hole and the flat switch. A keyboard switch equipped with a plurality of light emitting elements arranged. 6. A flat-plate switch having a plurality of switch parts and having a conductive pattern formed on the surface thereof, the flat-plate switch being arranged so as to face the surface of the flat-plate switch, each of which is formed at a position facing each of the switch parts. And a polymer film having a plurality of through holes for a light emitting element, each of which is fixed to the surface of the polymer film at a position facing each of the switch parts, and faces the through hole for a light emitting element of the polymer film. A plurality of key tops each having a hole for accommodating a light-emitting element formed therein, the key top being mounted on the surface of the flat plate switch at a position facing the hole for accommodating a light-emitting element, and penetrating through the through-holes for the light-emitting element facing each other. The tip portion is housed in the light-emitting element housing hole that faces the light-emitting element, and the top has a gap equal to or larger than the operating distance between the light-emitting element hole and the flat-plate switch. A keyboard switch equipped with a plurality of light emitting elements arranged. 7. A flat-plate switch having a plurality of switch parts and having a conductive pattern formed on the surface thereof, the flat-plate switch being arranged so as to face the surface of the flat-plate switch, each of which is formed at a position facing each of the switch parts. A keytop body integrally formed with a plurality of keytops each having a hole for storing a light-emitting element formed thereon, the keytop body being mounted on the surface of the flat switch in a position facing the hole for storing a light-emitting element, and each of them being opposed to each other. A keyboard switch comprising a plurality of light emitting elements, the tip of which is housed in a hole for housing a light emitting element, and the apex of which is arranged with a gap equal to or larger than the operating distance between the hole for housing a light emitting element and the flat switch.