JPH11288641A - Movable contact and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a movable contact which constitutes a panel switch for use as a thin control panel for various electronic equipment and a method for manufacturing the same, the movable contact being easy to mount on a base having a fixed contact, and being inexpensive. SOLUTION: A movable contact 13 is formed by a sheet plate 11 made of insulating film, in which domed movable contacts 2 made of elastic metallic thin plates are stored in a plurality of through holes 11A, the upper surface of each through hole 11A being covered with a sheet strip 3 made of flexible insulating film which has an adhesive 3A applied to its lower surface. An adhesive 12 is applied partly to the portion of the lower surface of the sheet plate 11 where no through hole 11A is provided, so that the movable contact 13 is inexpensive and so that the work of bonding the movable contact 13 to the board of equipment used can be performed accurately and efficiently.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable switch for a panel switch constituting a panel switch used for a thin operation panel of various electronic devices and a method of manufacturing the same.

[0002]

2. Description of the Related Art The structure of a conventional movable contact body for a panel switch will be described with reference to FIGS.

[0003] In order to make the configuration easy to understand, the drawings are enlarged in the thickness direction.

FIG. 14 (a) is a sectional view of a conventional movable contact body, FIG. 14 (b) is an enlarged sectional view of the movable contact portion, and FIG. 14 (c) is an exploded perspective view. A dome-shaped movable contact 2 made of an elastic metal sheet is inserted into a plurality of through-holes 1B provided in the sheet plate 1 and the adhesive 1A with a sheet plate made of an insulating film having an adhesive 1A applied to the lower surface. The upper surface of each through hole 1B is covered with a small sheet 3 made of a flexible insulating film having an adhesive 3A applied to the lower surface, and the upper surface of the movable contact 2 is adhered and held on the upper surface of the sheet plate 1 to be movable. The contact body 4 is constituted.

FIG. 15A is a cross-sectional view of a movable contact body with a protective sheet, and FIG. 15B is an enlarged cross-sectional view of the same movable contact portion to enable storage and transportation of the movable contact body 4. And (c) as shown in the same exploded perspective view, a separator 5 having a through hole 5A at the same position as the through hole 1B of the sheet plate 1 and having an upper surface peeled off is attached to the lower surface of the sheet plate 1; Further, in order to prevent dust and the like from adhering to the movable contact 2 from the lower surface of the through hole 5A, a protective sheet 6 made of an insulating film coated with an adhesive 6A on the upper surface is covered with the lower surface of the separator 5 to cover the through hole 5A. To form a movable contact body 7 with a protective sheet.

[0006] When the movable contact body 7 with the protective sheet formed as described above is mounted on the board of the equipment to be used,
As shown in the side view explaining the mounting method in FIG. 16, the movable contact member 4 is separated by separating the separator 5 and the protective sheet 6 from the upper surface on which the separator 5 has been subjected to the peeling treatment. As shown in the enlarged cross-sectional view of the portion, a panel switch was formed by superimposing on a substrate 9 provided with a predetermined fixed contact 8 and affixing it with an adhesive 1A on the lower surface of the sheet plate 1.

[0007]

However, the above-mentioned conventional movable contact body 4 and the movable contact body 7 with a protective sheet described above.
Then, the adhesive 1 for bonding to the substrate 9 of the equipment used
A is applied to the entire lower surface of the sheet plate 1, and when sticking to the substrate 9 provided with the fixed contacts 8, the operator has to touch the adhesive 1 </ b> A of the sheet plate 1, which is difficult to handle. In the case where displacement occurs during positioning work with the substrate 9, the movable contact body 4 must be peeled off from the substrate 9 and discarded. Work efficiency was poor.

An adhesive 1A is applied to the entire lower surface of the sheet plate 1.
The cost of the material increases because
There is also a problem that the adhesive attached to the mold has to be periodically wiped off in order to make a through hole by punching out a sheet with the adhesive when manufacturing this.

SUMMARY OF THE INVENTION The present invention solves such a conventional problem, and is easy to mount on a substrate, requires no labor, and is more inexpensive than a conventional movable contact body for a panel switch, and a method of manufacturing the same. The purpose is to provide.

[0010]

In order to solve the above-mentioned problems, a movable contact body for a panel switch according to the present invention accommodates a dome-shaped movable contact made of an elastic metal thin plate in a plurality of through holes and has a lower surface on a lower surface. An adhesive is partially applied to a portion of the lower surface of the sheet plate made of an insulating film, in which the upper surface of each through hole is covered with a small piece sheet of a flexible insulating film coated with an adhesive, where there is no through hole. , To be attached to the substrate of the equipment to be used.

With this, when the movable contact body is bonded to the substrate of the equipment having the fixed contact, the worker can work with the part without the adhesive, so that the work can be performed reliably and efficiently, Since the agent is partially applied, the material cost can be reduced, and since the adhesive does not adhere to the die for punching the through-hole, the processing can be made more efficient.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a sheet plate made of an insulating film having a plurality of through-holes and having a predetermined size; A small piece sheet made of a flexible insulating film attached,
A dome-shaped movable contact made of an elastic metal sheet, which is accommodated in each through hole of the sheet plate, and whose upper surface protrusion is adhered and held by an adhesive on the lower surface of the small sheet, and a portion on the lower surface of the sheet plate where there is no through hole. It is a movable contact body made of adhesive that is attached to the substrate, and when sticking the movable contact body to the substrate equipped with the fixed contact of the equipment to be used, the worker can work with the part without the adhesive Therefore, the work can be performed reliably and efficiently, the cost can be reduced because the amount of adhesive material is small, and furthermore, the insulating film that does not have the adhesive when the through holes are formed in the sheet plate in advance. Since it is sufficient to perform punching processing on a sheet made of steel, the adhesive has no effect on the mold, so that there is an effect that maintenance such as periodic wiping work becomes unnecessary.

According to a second aspect of the present invention, in the first aspect of the present invention, the pressure-sensitive adhesive on the lower surface of the sheet plate is attached at least in the vicinity of both opposite ends of the sheet plate in a narrow band shape. In addition, in addition to the same effect as the first aspect of the present invention, there is an effect that the movable contact body after being attached to the substrate of the device to be used can be stably fixed.

According to a third aspect of the present invention, there is provided a movable contact according to the first or second aspect, wherein the separator is made of an insulating film having substantially the same size as the pressure-sensitive adhesive on the lower surface of the sheet plate and having an upper surface subjected to a release treatment. A protective sheet made of an insulating film that is attached to the lower surface of the adhesive of the body and is almost the same size as the sheet plate, and has a slight adhesive applied to the entire upper surface, is subjected to peeling treatment of the adhesive and the separator on the lower surface of the sheet plate. A movable contact body with a protective sheet lightly adhered to the lower surface of the sheet plate so as to adhere to the lower surface of the separator with a stronger adhesive force than between the surfaces and to close the lower surface of each through hole of the sheet plate. Since the lower surface of each through hole of the sheet plate can be closed by a protective sheet with a slight adhesive applied to the entire surface, the separator and the protective sheet can be easily peeled off from the movable contact body when mounted on the board of the equipment used. With bets can, during storage and transport of the movable contact member, an effect that was almost completely prevent dust or the like adheres to the contact surface of the lower surface of the housing is a movable contact in the through hole of the seat plate.

According to a fourth aspect of the present invention, the lower surface of the adhesive of the movable contact body according to the first or second aspect is made of an insulating film having substantially the same size as a sheet plate and having an upper surface subjected to a release treatment. A protective contact sheet with a protective sheet covering the lower surface of each through hole of the sheet plate is attached.When the protective sheet is mounted on the board of the equipment to be used, the protective sheet can be easily removed from the movable contact element. Since it can be peeled off and only covers the lower surface of each through hole of the sheet plate with the protective sheet, during storage and transportation of the movable contact body, the lower contact surface of the movable contact housed in the through hole of the sheet plate contacts Although it is not possible to completely prevent dust or the like from adhering, it is possible to prevent damage to the movable contact, and the number of components is smaller than that of the movable contact body with the protective sheet according to claim 3, so that the structure is simple. Cheap An effect that can provide Do movable contact with the protective sheet.

According to a fifth aspect of the present invention, there is provided a long strip-shaped connecting / protecting sheet having a slight adhesive applied to an upper surface, and at least two narrow tape-shaped sheets having an upper surface subjected to a release treatment. The adhesive according to claim 1 or 2, wherein an adhesive on the lower surface of the sheet plate is attached to a parallel tape-like sheet attached in parallel at predetermined intervals along the longitudinal direction of the upper surface of the connection / protection sheet. The movable contact body is held continuously at a predetermined pitch, and the connected movable contact body is lightly bonded to the lower surface of the sheet plate with a connection / protection sheet so as to close the lower surface of each through hole of the sheet plate. Yes,
Since the movable contact body is transported in a state of being connected in a belt shape at a predetermined pitch, it can be separated and supplied continuously as an individual movable contact body immediately before being bonded to the substrate of the equipment used,
The efficiency of the operation of bonding the equipment to the substrate can be increased, the bonding can be performed by an automatic machine, and dust and the like can be adhered to the lower contact surface of the movable contact accommodated in the through hole of the sheet plate during storage and transportation. This has the effect that adhesion can be completely prevented.

According to a sixth aspect of the present invention, the adhesive on the lower surface of the sheet plate of the movable contact body according to the first or second aspect is attached to the upper surface of the long strip-shaped connecting sheet having the upper surface subjected to a release treatment. By continuously holding the movable contact body at a predetermined pitch by doing so, it is a connected movable contact body that covers the lower surface of each through hole of the sheet plate with a connection sheet, and has a simple and inexpensive configuration, The movable contact body is transported in a state of being connected in a belt shape at a predetermined pitch, and can be separated and continuously supplied as individual movable contact bodies immediately before bonding to the board of the equipment used. Lamination work can be made more efficient, lamination with automatic machines is also possible,
Further, the movable contact can be prevented from being damaged during transportation.

According to a seventh aspect of the present invention, there is provided an insulating film obtained by continuously punching a plurality of through holes required as sheet plates for each movable contact body and a space between the sheet plates at a predetermined pitch. In the vicinity of both sides without through-holes on the lower surface of a main strip-shaped sheet made of aluminum, the upper surface of at least two narrow tape-shaped sheets made of an insulating film subjected to a peeling process on the upper surface, and a tape having substantially the same width as the tape-shaped sheet Tape-like sheet with pressure-sensitive adhesive laminated and adhered in parallel along the longitudinal direction, and underneath it, made of an insulating film with a slight pressure-sensitive adhesive attached to the entire upper surface, and is approximately the same width as the main sheet After bonding the belt-shaped connection and protection sheet
A small sheet made of a flexible insulating film in which the upper projecting portion of a dome-shaped movable contact made of an elastic metal thin plate is adhered and held by an adhesive on the lower surface, the movable contact is accommodated in each through-hole, and the upper surface of each through-hole is Laminated on the main sheet so as to close, after that, the main sheet and the tape-shaped adhesive to the outline of the individual sheet board, for half cut processing to connect with the punching processing section of the main sheet, Using a jig, hold the outer side of each sheet plate of the main sheet from above and pull it upward to peel off the sheet plate, or pull each sheet plate of the main sheet A method for manufacturing a movable contact body in which the movable contact body is continuously manufactured by bending the outer side portion of the main sheet and the connection / protection sheet downward so that a portion of the main contact sheet remains. In addition, the movable contact body can be continuously manufactured at a low cost, and transported in a state where the movable contact body is connected in a belt shape at a predetermined pitch before being separated as an individual movable contact body, and bonded to a substrate of a used device. By separating and continuously supplying individual movable contacts just before, it is possible to streamline the work of bonding the equipment to be used to the substrate, and also to perform bonding by an automatic machine. Has the effect of almost completely preventing dust or the like from adhering to the contact surface on the lower surface of the movable contact accommodated in the through hole.

According to the present invention, a plurality of through-holes necessary for each sheet plate and a portion to be a gap between the sheet plates are continuously punched at a predetermined pitch to form a strip-shaped insulating film. At least two narrow tape-like adhesives are applied in parallel along the longitudinal direction in the vicinity of both sides of the lower surface of the main sheet where there is no through-hole, and the upper surface is approximately the same width as the main sheet whose upper surface has been peeled off. After attaching the strip-shaped connecting sheet of the above, the movable contact penetrates through a small sheet made of a flexible insulating film in which the upper projection of the dome-shaped movable contact made of an elastic metal thin plate is adhered and held with an adhesive on the lower surface. The main sheet is stuck on the main sheet so as to cover the upper surface of each through-hole, and then the main sheet and the tape-shaped adhesive are punched out according to the outline of the individual sheet plate. Using a jig, hold the outer side of each sheet plate part of the main sheet from above while pulling the sheet plate part upward using a jig. A movable contact body that continuously manufactures a movable contact body by pulling or bending an outer side portion of a main sheet and a connection / protection sheet downward so that a portion serving as each sheet plate of the main sheet remains. The movable contact body can be manufactured continuously and inexpensively, and before being separated as individual movable contact bodies, transported in a state where the movable contact bodies are connected in a band at a predetermined pitch. By separating and continuously supplying individual movable contacts just before bonding to the board of the equipment used, the work of bonding the equipment to the board can be made more efficient, and bonding by an automatic machine Possible, further,
This has the effect that damage to the movable contact during transportation can be prevented.

According to a ninth aspect of the present invention, in the invention according to any one of the third, fifth and seventh aspects, the fine adhesive applied to the entire upper surface of the protective sheet or the connecting / protecting sheet is silver. It is an acrylic resin-based pressure-sensitive adhesive with a composition that does not affect the protection sheet or the fine pressure-sensitive adhesive applied to the upper surface of the connection / protection sheet. This has the effect of not adversely affecting silver plating or the like applied to the contact surface of the movable contact held therein.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. 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) FIG. 1A is a sectional view of a movable contact body for a panel switch according to a first embodiment of the present invention, and FIG. (C) is an exploded perspective view of the same, in which 11 is a sheet plate made of an insulating film having a predetermined size and having a plurality of through holes 11A, and an elastic metal sheet is provided in the plurality of through holes 11A. Dome-shaped movable contact 2 is accommodated, and adhesive 3
It is known that the upper surface of each through-hole 11A is covered with a small piece sheet 3 made of a flexible insulating film coated with A, and the upper projection of the movable contact 2 is adhered and held on the upper surface of the sheet plate 11 in the prior art. Is the same as

However, the pressure-sensitive adhesive 12 applied to the lower surface of the sheet plate 11 has only the opposite ends without the through-hole 11A,
The movable contact body 13 is formed by being applied in a narrow band shape.

In order to store and transport the movable contact body 13, a sectional view of the movable contact body with a protective sheet shown in FIG. 2A and an enlarged sectional view of a main part of FIG. As shown in the exploded perspective view of FIG.
On the lower surface of the pressure-sensitive adhesive 12 on the lower surface, a separator 14 made of an insulating film having the same size as the pressure-sensitive adhesive 12 and having been subjected to a peeling treatment is bonded to the lower surface thereof. Protective sheet 1 made of insulating film
5 are bonded together with a slight adhesive 15A attached to the entire upper surface thereof to form a movable contact body 16 with a protective sheet.

Here, the adhesive force of the protective sheet 15 bonded to the lower surface of the separator 14 by the slight adhesive 15A is determined by the adhesive 12 of the sheet plate 11.
The peel strength of the upper surface of the protective sheet 15 is greater than the adhesive strength of the laminated sheet, and the intermediate portion of the protective sheet 15 is closed by the small adhesive 15A so as to cover the lower surface of each through hole 11A of the sheet plate 11. (See FIG. 2B).

The fine adhesive 15A applied to the entire upper surface of the protective sheet 15 is an acrylic resin-based adhesive having a composition that does not affect silver, and is used as a movable contact body 16 with a protective sheet during storage and transportation. In this case, silver plating or the like applied to the contact surface of the movable contact 2 held in the through hole 11A of the sheet plate 11 is not adversely affected.

When the movable contact body 13 is separated from the movable contact body 16 with the protective sheet formed as described above and is mounted on the board of the equipment to be used, a sectional view for explaining the mounting method of FIG. As shown in FIG.
The separator 14 and the protective sheet 15 are peeled off between the upper surface subjected to the peeling process of FIG. 4 and the adhesive 12 and between the slightly adhesive 15A attached to the upper surface of the protective sheet 15 and the lower surface of the sheet plate 11, and FIG. As shown in the cross-sectional view of the substrate part of the device, it is fixed on the substrate 17 provided with the predetermined fixed contacts 8 by being superimposed on the substrate 17 and affixing with a narrow band-shaped adhesive 12 at both ends of the lower surface of the sheet plate 11. , Panel switch 1
8 is formed.

When the separator 14 and the protective sheet 15 are peeled off as described above, the adhesive 12 is peeled off from the lower surface of the sheet plate 11 or the adhesive sheet 12A is adhered so that the sheet plate 11 is not deformed by the adhesive force of the small adhesive 15A. Agent 12 and light adhesive 1
The adhesive strength of 5A is determined.

The intermediate portion of the sheet plate 11 may be lifted because there is no adhesive on the lower surface, but this portion may be raised by the bar portion 20 of the rubber key 19 and the bar portion 21 of the case shown in FIG. Because it is held down, it does not rise.

As described above, according to the present embodiment, the adhesive 12 for bonding the movable contact body 13 to the substrate 17 of the device to be used is attached to both ends of the lower surface of the sheet plate 11 in a strip shape. Therefore, since the worker can work with the part without the adhesive 12, the work can be performed reliably and efficiently, and the individual movable contact body 13 after bonding can be stably fixed. Since the adhesive 12 is partially applied, the material cost can be reduced. Further, the lower surface of each through hole 11A of the sheet plate 11 can be closed by the protective sheet 15 having the fine adhesive 15A attached to the entire upper surface. Therefore, it is possible to prevent dust or the like from adhering to the contact surface on the lower surface of the movable contact 2 accommodated in the through hole 11A of the sheet plate 11 during storage, transportation, and the like. Since the adhesive 12 to a die for punching a through hole 11A because it is attached to a portion with no A does not adhere, maintenance work such as periodical wiping is not required, in which attained the efficiency of the processing.

(Embodiment 2) FIG. 5 is an external perspective view of a connected movable contact body according to a second embodiment of the present invention. In FIG. 5, reference numeral 22 denotes a fine adhesive 22A attached to the upper surface. A long strip-shaped connecting / protecting sheet also serving as a protective sheet; a narrow tape-shaped sheet as a separator having an upper surface subjected to release treatment;
Are attached in parallel at predetermined intervals along the longitudinal direction of the upper surface of the connection / protection sheet 22.

Then, two parallel tape-like sheets 2
The movable contact body 13 is continuously held at a predetermined pitch by adhering the adhesive 12 on the lower surface of the sheet plate 11 on the upper surface 3 and closes the lower surface of each through hole 11A of the sheet plate 11. As described above, the light bonding of the connection / protection sheet 22 with the slight adhesive 22A is the same as the protection sheet 15 described in the first embodiment.

According to the present embodiment, the movable contact members are transported in a state of being connected in a belt shape at a predetermined pitch, and are separated and continuously supplied as individual movable contact members immediately before being bonded to the substrate of the equipment to be used. Therefore, the operation of bonding the used equipment to the substrate can be made more efficient, the bonding can be performed by an automatic machine, and the movable contact during transportation can be almost completely prevented from being damaged.

(Embodiment 3) FIG. 6 (a) is a sectional view of a movable contact body with a protection sheet for a panel switch according to a third embodiment of the present invention, and FIG. The cross-sectional view is the same as the exploded perspective view of FIG. 1C, in which the structure of the movable contact body 13 is the same as that of the first embodiment, but the lower surface of the adhesive 12 at both opposing ends is provided. A protective sheet 24 made of an insulating film, which is approximately the same size as the sheet plate 11 and has been subjected to a peeling process on the upper surface, is attached to the lower surface, and an intermediate portion thereof is arranged so as to cover the lower surface of each through hole 11A of the sheet plate 11. Thus, a movable contact body 25 with a protective sheet is formed (see FIG. 6B).

When the movable contact body 13 is separated from the movable contact body 25 with the protective sheet formed as described above and is mounted on the substrate of the equipment to be used, the protective sheet 24 subjected to the peeling treatment and the adhesive 12 to separate the movable contact body 13
The panel switch is formed by sticking it to the substrate of the device to be used by using the band-shaped adhesive 12 at both ends of the lower surface of the sheet plate 11 to form a panel switch in the same manner as in the first embodiment.

As described above, the movable contact body 25 with the protection sheet according to the present embodiment only covers the lower surface of each through hole 11A of the sheet plate 11 with the protection sheet 24.
It is not possible to completely prevent dust and the like from adhering to the contact surface on the lower surface of the movable contact 2 accommodated in the through hole 11A of the sheet plate 11 during storage or transportation, but it does not prevent damage to the movable contact body. In addition, since the number of components is smaller than that of the first embodiment, a simple and inexpensive movable contact body 25 with a protective sheet can be provided. The sheet 24 can be easily peeled off from the movable contact body 13.

(Embodiment 4) FIG. 7 is an exploded perspective view for explaining an outline of a method for manufacturing a movable contact body for a panel switch according to a fourth embodiment of the present invention. I do.

First, as shown in the plan view of FIG. 8, for each strip-shaped insulating film having a predetermined width, each sheet plate 26 of the movable contact body (the outline 26A is indicated by a dotted line in FIGS. 7 and 8). The main sheet 27 is formed by punching a necessary through hole 26B and a portion 27A serving as a gap between the sheet plates 26 at a predetermined pitch.

Next, on the upper surface of a narrow tape-like sheet 28 made of an insulating film, the upper surface of which has been subjected to a release treatment, a tape-like adhesive 29 having substantially the same width as this is laminated and adhered. The two sheets 30 are stuck in parallel along the longitudinal direction near the both sides of the main sheet 27 where there is no through hole 26B. The sheet 26 is pasted so as to coincide with a straight line which is an outline 26A (shown by a dotted line in FIGS. 7 and 8) (see FIG. 8).

Thereafter, a band-like connecting / protecting sheet 32 made of an insulating film having a slightly adhesive layer 31 attached to the entire upper surface and having substantially the same width as the main sheet 27 is attached to the lower surface of the tape-like sheet 28. A small sheet 3 made of a flexible insulating film in which an upper projecting portion of a dome-shaped movable contact 2 made of an elastic metal thin plate is adhered and held by an adhesive 3A on a lower surface, and the movable contact 2 is accommodated in each through hole 26B. By bonding the main sheet 27 on the main sheet 27 so as to cover the upper surface of each through hole 26B, the sheet after bonding has a shape as shown in FIG. The lower surface of the hole 26B is closed by lightly bonding the connection / protection sheet 32 with the slight adhesive 31.

Thereafter, the outline 26 of the sheet sheet 26 of the main sheet 27 and the tape-like adhesive 29 shown by a dotted line in FIG.
A and the tape-like adhesive 29 in a portion 27A which is a gap between the sheet sheet 26 of the main sheet 27 and the main sheet 27 are cut as shown by arrows in FIG. The half-cut line and the punched portion of the portion 27A serving as a gap between the sheet plates 26 of the main sheet 27 are connected.

Thereafter, as shown in the cross-sectional view of FIG. 10, the half-cut band-shaped sheet 33 is placed on a jig 34A, and the outer side portions 27B on both sides of the portion of the main sheet 27 that will become each sheet plate 26. While holding the sheet plate 26 from above, the sheet plate 26 is pulled upward by a suction jig 34B or the like, or as shown in the side view of FIG. 35, and each sheet plate 26 of the main sheet 27
By folding the outer side portion 27B of the main sheet 27 and the connection / protection sheet 32 downward so that the portion of the movable contact member 13 remains, the movable contact body 13 can be continuously taken out.

As described above, according to this embodiment, the movable contact body 13 can be continuously manufactured at low cost, and the state of the half-cut strip-shaped sheet 33 before the individual movable contact body 13 is taken out. And by continuously supplying them as individual movable contact bodies 13 immediately before bonding to the substrate of the equipment to be used, the work of bonding the equipment to the substrate can be made more efficient, and the bonding by an automatic machine can be performed. Possible, and furthermore, during storage and transport, the sheet
6 can substantially completely prevent dust and the like from adhering to the contact surface on the lower surface of the movable contact 2 accommodated in the through hole 26B.

(Embodiment 5) FIG. 12 is an exploded perspective view for explaining an outline of a method for manufacturing a movable contact body for a panel switch according to a fifth embodiment of the present invention. I do.

First, a through hole 26B required for each sheet plate 26 of the movable contact body is formed in a strip-shaped insulating film having a predetermined width.
In the same manner as in the fourth embodiment, the main sheet 27 is formed by punching a portion 27A serving as a gap between the sheet plates 26 at a predetermined pitch.

Next, two narrow tape-like adhesives 29 are placed in parallel with each other along the longitudinal direction near both sides of the main sheet 27, and the center of the tape-like adhesive 29 is substantially the outline 26A of the sheet plate 26. Paste to match the straight line.

Thereafter, a band-like connecting sheet 36 made of an insulating film whose entire upper surface is peeled off and having substantially the same width as the main sheet 27 is attached to the lower surface of the tape-like adhesive 29, and then a dome made of an elastic metal thin plate is attached. The small contact sheet 3 made of a flexible insulating film in which the upper projecting portion of the movable contact 2 having the shape is adhered and held by the adhesive 3A on the lower surface is used.
13A, by being stuck on the main sheet 27 so as to cover the upper surface of each through hole 26B, which is accommodated in FIG.
And the lower surface of each through hole 26B of the main sheet 27 accommodating the movable contact 2 is covered with the connecting sheet 36.

Thereafter, the outer shape 26A of the sheet sheet 26 of the main sheet 27 and the tape-like adhesive 29 and the tape-like adhesive 29 in a portion 27A which is a gap between the sheet plates 26 of the main sheet 27 are formed by half-cut processing. 13 is cut as shown by the arrow, and the half-cut line of the main sheet 27 and the tape-shaped adhesive 29 and the main sheet 2 are cut.
As in the fourth embodiment, the punched portions of the portion 27A serving as the gap between the sheet plates 26 of No. 7 are connected.

Thereafter, a method of taking out the movable contact body 13 from the half-cut strip-shaped sheet 37 is also described in the fourth embodiment.
Is the same as

As described above, according to the present embodiment, the movable contact body 13 can be continuously manufactured at low cost, and the state of the half-cut strip-shaped sheet 37 before the individual movable contact body 13 is taken out. And by continuously supplying them as individual movable contact bodies 13 immediately before bonding to the substrate of the equipment to be used, the work of bonding the equipment to the substrate can be made more efficient, and the bonding by an automatic machine can be performed. It is possible to prevent the movable contact 2 from being damaged during transportation.

[0051]

As described above, according to the present invention, when the movable contact body is bonded to the substrate of the equipment having the fixed contact, the worker can work with the part without the adhesive, so that the operation can be surely performed. You can work efficiently,
Since the adhesive is partially applied, material costs can be reduced.In addition, the adhesive does not adhere to the die that punches through holes, and continuous production and subsequent storage and transportation in a connected state are also possible. There is an advantageous effect that processing efficiency can be improved.

[Brief description of the drawings]

FIG. 1A is a cross-sectional view of a movable contact body according to a first embodiment of the present invention. FIG. 1B is an enlarged cross-sectional view of the main part.

FIG. 2A is a cross-sectional view of the movable contact body with the protection sheet. FIG. 2B is an enlarged cross-sectional view of the main part.

FIG. 3 is a sectional view for explaining a method of mounting the movable contact body.

FIG. 4 is a cross-sectional view of a board portion of the used device.

FIG. 5 is an external perspective view of a connected movable contact body according to a second embodiment of the present invention.

FIG. 6A is a sectional view of a movable contact body with a protective sheet according to a third embodiment of the present invention. FIG. 6B is an enlarged sectional view of the essential part.

FIG. 7 is an exploded perspective view for explaining an outline of a method for manufacturing a movable contact body according to a fourth embodiment of the present invention.

FIG. 8 is a plan view of the main seat.

FIG. 9 is a cross-sectional view of the sheet after the bonding.

FIG. 10 is a sectional view for explaining a method of taking out a movable contact body from the half-cut band-shaped sheet.

FIG. 11 is a side view for explaining another method of extracting the movable contact body from the half-cut band-shaped sheet.

FIG. 12 is an exploded perspective view for explaining an outline of a method for manufacturing a movable contact body according to a fifth embodiment of the present invention.

FIG. 13 is a sectional view of the sheet after the bonding.

14A is a sectional view of a conventional movable contact body, FIG. 14B is an enlarged sectional view of the movable contact part, and FIG.

FIG. 15A is a cross-sectional view of the movable contact body with the protective sheet. FIG. 15B is an enlarged cross-sectional view of the main part.

FIG. 16 is a side view illustrating a method of mounting the movable contact body.

FIG. 17 is an enlarged sectional view of the contact portion.

[Explanation of symbols]

 2 Movable contact 3 Small piece sheet 3A, 12 Adhesive 8 Fixed contact 11, 26 Sheet plate 11A, 26B Through hole 13 Movable contact body 14 Separator 15, 24 Protective sheet 15A, 22A, 31 Fine adhesive 16, 25 With protective sheet Movable contact body 17 Substrate 18 Panel switch 19 Rubber key 20, 21 Crosspiece 22, 32 Connection / protection sheet 23, 28 Tape-like sheet 26A Outline line 27 Main sheet 27A Gap part 27B Outer side part 29 Tape-like adhesive 30 Tape-like sheet with adhesive 33, 37 Half-cut strip-shaped sheet 34A, 35 Jig 34B Suction jig 36 Connecting sheet

Claims (9)

[Claims] 1. A sheet plate made of an insulating film having a predetermined size provided with a plurality of through holes, and a small sheet made of a flexible insulating film stuck so as to cover the upper surface of each through hole of the sheet plate. The dome-shaped movable contact made of an elastic metal thin plate, which is accommodated in each through hole of the sheet plate and whose upper surface protruding portion is adhered and held by an adhesive on the lower surface of the small sheet, and a portion of the lower surface of the sheet plate where there is no through hole. A movable contact body made of partially applied adhesive. 2. The movable contact body according to claim 1, wherein the pressure-sensitive adhesive on the lower surface of the sheet plate is provided in a narrow band shape at least in the vicinity of both opposite ends of the sheet plate. 3. The movable contact body according to claim 1, wherein a separator made of an insulating film having substantially the same size as the pressure-sensitive adhesive on the lower surface of the sheet plate and having an upper surface subjected to a release treatment is applied to the lower surface of the pressure-sensitive adhesive of the movable contact body according to claim 1 or 2. A protective sheet made of an insulating film that is approximately the same size as the sheet plate and has a slight adhesive applied to the entire upper surface, is stronger than the adhesive between the lower surface of the sheet plate and the peeled surface of the separator. A movable contact body with a protective sheet that is stuck to the lower surface of the separator by force and lightly adhered to the lower surface of the sheet plate so as to close the lower surface of each through hole of the sheet plate. 4. A protective sheet made of an insulating film having substantially the same size as a sheet plate and having an upper surface subjected to release treatment, is attached to the lower surface of the adhesive of the movable contact body according to claim 1 or 2, A movable contact body with a protective sheet covering the lower surface of each through hole of the sheet plate. 5. A long strip-shaped connecting / protecting sheet having a slight adhesive applied to its upper surface, and at least two narrow tape-shaped sheets subjected to a peeling treatment on the upper surface of the connecting / protecting sheet. 3. An adhesive on the lower surface of a sheet plate is stuck on a parallel tape-like sheet stuck in parallel at a predetermined interval along a longitudinal direction of the sheet.
A movable contact body, wherein the movable contact body is continuously held at a predetermined pitch and a connection / protection sheet is lightly adhered to a lower surface of the sheet plate so as to cover a lower surface of each through hole of the sheet plate. 6. The movable contact body according to claim 1 or 2, wherein the adhesive on the lower surface of the sheet plate of the movable contact body is adhered to the upper surface of a long strip-shaped connection sheet having an upper surface subjected to a release treatment. While holding continuously at the pitch of
A connected movable contact body that covers the lower surface of each through hole of the sheet plate with a connecting sheet. 7. A lower surface of a strip-shaped main sheet made of an insulating film obtained by continuously punching a plurality of through holes required as sheet plates of each movable contact body and a gap between the sheet plates at a predetermined pitch. Near both sides without through holes
A tape-like sheet with an adhesive is formed by laminating a tape-like adhesive of approximately the same width as the tape-like sheet on the upper surface of at least two narrow-width tape-like sheets made of an insulating film subjected to a release treatment on the upper surface. Attaching parallel and along the direction, and then attaching a strip-shaped connection / protection sheet of approximately the same width as the main sheet made of an insulating film with a slight adhesive applied to the entire upper surface below it, and then made of an elastic metal sheet A small sheet made of a flexible insulating film in which the upper projection of the dome-shaped movable contact is adhered and held with an adhesive on the lower surface, so that the movable contact is housed in each through-hole and covers the upper surface of each through-hole. Laminated on the sheet, and then cut the main sheet and the tape-shaped adhesive into half cut so that they are connected to the punching section of the main sheet according to the outline of the individual sheet plate. Using a jig, hold the outer side of each part of the main sheet, which is to be a sheet plate, from above, and pull it upward to peel off the part that will become the sheet plate, or A method for manufacturing a movable contact body in which a movable contact body is continuously manufactured by bending an outer side portion of a main sheet and a connection / protection sheet downward so that a plate portion remains. 8. A lower surface of a strip-shaped main sheet made of an insulating film obtained by continuously punching a plurality of through holes required as sheet plates of each movable contact body and a gap between the sheet plates at a predetermined pitch. Near both sides without through holes
At least two narrow tape-like adhesives are stuck in parallel along the longitudinal direction, and a band-like connecting sheet with a width almost the same as the main sheet whose upper surface has been peeled off is stuck underneath. A small sheet made of a flexible insulating film in which the upper projecting portion of a thin dome-shaped movable contact is adhered and held by an adhesive on the lower surface, such that the movable contact is accommodated in each through-hole and covers the upper surface of each through-hole. Then, the main sheet and the tape-shaped adhesive were half-cut so as to be connected to the punching section of the main sheet according to the outline of the individual sheet board, and then the jig was used. Using a squeeze, pull upward while tearing off the portion that will become the sheet plate while pressing the outer side of the portion that will become the sheet plate of the main sheet from above, or As part comprising a plate remains, by bending the coupling and protective sheet and the outer side portion of the main sheet downward, method of manufacturing the movable contact unit for continuously producing movable contact. 9. The adhesive according to claim 3, wherein the fine adhesive applied to the entire upper surface of the protective sheet or the connection / protective sheet is an acrylic resin-based adhesive having a composition that does not affect silver. 3. The movable contact body according to claim 1.