KR100675545B1 - Push button switch structure - Google Patents

Abstract

It is an object of the present invention to provide a push button switch structure capable of realizing both a relatively sensitive click feeling and a relatively long operation stroke.

The present invention, as a means for solving the above, is a fixed contact (2, 3) embedded in the housing (1), and the first of the metal which is a movable contact that can contact the fixed contact (3) of these fixed contacts (2, 3) The inversion spring 4 and the 2nd inversion spring 5 which consist of a rubber body which gives the pressing force which inverts this 1st inversion spring 4 are provided. Further, the first inversion spring 4 and the second inversion spring 5 are inverted almost simultaneously between the government of the first inversion spring 4 and the pressing portion 7 of the second inversion spring 5. The gap dimension 8 was set.

Push Button Switches, Fixed Contacts, Movable Contacts, Reverse Springs, Spacers

Description

Push Button Switch Structure {PUSH BUTTON SWITCH STRUCTURE}

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a longitudinal sectional view showing a first embodiment of the present invention applied to a pushbutton switch device of a single body housed in an independent outer shell.

It is a figure which shows the operating force and the stroke characteristic of the 1st reverse spring which consists of metals with which 1st Embodiment shown in FIG. 1 is equipped.

It is a figure which shows the operating force and the stroke characteristic of the 2nd reverse spring which consists of a rubber body with which 1st Embodiment shown in FIG. 1 is equipped.

It is a figure which shows the operating force and stroke characteristic in 1st Embodiment shown in FIG.

5 is an exploded perspective view showing a second embodiment of the present invention applied to each of a plurality of push button switch devices formed through a sheet-like member.

It is a longitudinal cross-sectional view which shows the principal part of 2nd Embodiment shown in FIG.

It is a figure which shows the principal part of 3rd Embodiment of this invention.

Fig. 8 is a longitudinal sectional view showing the fourth embodiment of the present invention applied to a pushbutton switch device of a single body housed in an independent outer shell.

Fig. 9 is a longitudinal sectional view showing a fifth embodiment of the present invention applied to a pushbutton switch device of a single body housed in an independent outer shell.

10 is a longitudinal cross-sectional view showing the sixth embodiment of the present invention applied to a pushbutton switch device of a single body housed in an independent outer shell.

It is a longitudinal cross-sectional view which shows 7th Embodiment of this invention applied to the pushbutton switch apparatus of the single body accommodated in independent outer shell.

It is a longitudinal cross-sectional view which shows 8th Embodiment of this invention applied to the pushbutton switch apparatus of the single body accommodated in independent outer shell.

Explanation of symbols on the main parts of the drawings

1: housing 2: fixed contact

3: fixed contact 4: first reversing spring

5: 2nd reverse spring 6: lower part

7: Pressing part 8: gap dimension

9: stem 10: circumferential side

11: printed circuit board 12: first reverse spring

13: second reversal spring 14: rubber seat

15: fixed contact pattern 16: fixed contact pattern

17: Pressing portion 18: gap dimension

19: switch unit 20: stem

21: gap dimension 22: spacer

23: Dustproof Sheet 30: Fixed Contact

31: fixed contacts

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push button switch structure having a reverse spring that is provided in a push button switch device of various electronic devices and forms a movable contact.

As a conventional technique of this kind, there exists a structure provided in the pushbutton switch apparatus of Unexamined-Japanese-Patent No. 2000-322974 and 2002-93272, for example.

The former prior art includes a fixed contact embedded in a housing, a dome-shaped reversal spring, for example, a metal reversal spring, which is disposed to face the fixed contact so as to be in contact with the fixed contact to form a movable contact, and has an appropriate rigidity and elasticity; And a stem having a pressing portion that abuts against the top of the reversal spring and imparts a pressing force for reversing the reversal spring.

In this prior art, when the stem is operated, the pressurizing portion of the stem pressurizes the inverting spring so that the inverting spring made of metal is inverted, and the inverting spring is brought into contact with the fixed contact to output a predetermined signal. . At the time of inversion of the reversal spring made of this metal, a relatively sensitive click feeling can be obtained. In addition, the operation stroke until the inversion spring conducts to the fixed contact is relatively short.

The latter prior art includes a dome-shaped reversal spring, for example, a rubber body, having a fixed contact embedded in a housing, the dome-shaped reversal spring disposed so as to be in contact with the fixed contact, and having a movable contact on a surface opposite the fixed contact. And an operating portion, i.e., a stem, having a pressurizing portion that abuts against the reversal spring and imparts a pressing force for reversing the reversal spring.

Also in this conventional technique, when the stem is operated, the stem is pressurized by a reversing spring made of a rubber body so that the lower part of the reversing spring is bent so that the reversing spring is reversed, and the movable contact provided in the reversing spring is connected to the fixed contact. Thus, a predetermined signal can be output. At the time of inversion of the reversing spring made of this rubber body, it becomes a relatively insensitive click feeling of light and soft elasticity. In addition, the operation stroke until the movable contact of the reversing spring conducts to the fixed contact can be made relatively long, depending on the size of the lower part of the reversing spring made of this rubber body or the like.

Although the former prior art mentioned above obtains a relatively sensitive click feeling, since the operation stroke is short, there is a possibility that desirable operability may not be obtained depending on the installation purpose of the electronic device provided.

Moreover, although the latter prior art can lengthen an operation stroke, since a click feeling is comparatively insensitive, there exists a possibility that preferable operability may not be acquired depending on the installation purpose of the electronic device with which this also is provided.

Nowadays, some of the push button switch devices of electronic devices require securing both a relatively sensitive click feeling and a relatively long operation stroke.                         

This invention is made | formed in view of the fact of the prior art mentioned above, The objective is to provide the push button switch structure which can implement both a relatively sensitive click feeling and a comparatively long operation stroke.

MEANS TO SOLVE THE PROBLEM In order to achieve the said objective, this invention forms the fixed contact and the movable contact which can contact this fixed contact, the dome-shaped 1st reverse spring which has rigidity and elasticity, and the pressing force which reverses this 1st reverse spring. And a second reversing spring made of a material more flexible than the first reversing spring and having elasticity, and between the first reversing spring and the second reversing spring, between the first reversing spring and the second reversing spring. (2) A gap dimension for inverting the inversion spring at about the same time is set.

According to the present invention configured as described above, the above-described clearance dimension, which is the stroke until the second reverse spring made of a relatively flexible material contacts the first reverse spring, can be included in the entire operation stroke. That is, the operation stroke can be made the sum of the above-mentioned clearance dimension and the stroke from the state where the 2nd inversion spring abuts on the 1st inversion spring to the inversion of this 1st inversion spring, and is comparatively long operation Stroke can be realized.

In addition, by setting the above-described gap dimension, the first reverse spring having rigidity and elasticity and the second reverse spring having flexible and elasticity can be inverted almost simultaneously. Thereby, it can be set as the click feeling which combined the sensitive click feeling of a 1st inversion spring, and the sensitive click feeling of a 2nd inversion spring. In other words, a relatively sensitive click feeling can be realized as compared to a dull click feeling of the second reversal spring.

In the present invention, the first reverse spring is made of a synthetic resin or a metal having a conductive film on a surface facing the fixed contact, and the second reverse spring is made of a synthetic resin or a rubber body. Characterized in that made.

In addition, the present invention is characterized in that the rubber body is formed in a dome shape in the above invention.

The present invention is also characterized in that, in the above invention, the lower portion of the second reverse spring is brought into contact with the peripheral edge portion of the first reverse spring.

The present invention configured as described above can absorb the microscopic vibration generated when the first reverse spring having rigidity is reversed by the flexible second reverse spring.

In the present invention, a spacer is provided between a lower portion of the second reverse spring and a peripheral edge of the first reverse spring.

According to the present invention thus constituted, the above-described gap size can be adjusted by a spacer.

The present invention is also characterized in that in the above invention, a dustproof sheet covering the first reverse spring is provided.

The present invention thus constructed prevents dust from entering the contact portion formed by the first reversing spring and the fixed contact from entering the contact portion formed by the reversing operation of the flexible second reversing spring. can do.

The present invention is also characterized in that the present invention is provided in a single push button switch device housed in an independent outer shell.

Moreover, this invention was formed in each of the push button switch apparatuses which are formed in multiple numbers through the sheet-like member in the said invention, It is characterized by the above-mentioned.

Embodiment of the Invention

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of the pushbutton switch structure of this invention is described with reference to drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a longitudinal sectional view showing a first embodiment of the present invention applied to a pushbutton switch device of a unit housed in an independent outer shell.

In this first embodiment, one end is connected to a housing 1 forming an outer shell, fixed contacts 2 and 3 embedded in the bottom of the housing 1, and these fixed contacts, and the other end is led out of the housing. And an external connection terminal, not shown. Further, a first reversal spring disposed so as to oppose these fixed contacts 2, 3, the peripheral edge portion of which is always in contact with the fixed contact 2, and which forms a movable contact selectively contactable with the fixed contact 3 ( 4) is provided. This 1st reversal spring 4 is formed in the dome shape which has appropriate rigidity and elasticity. For example, a metal material is formed in a dome shape by drawing processing.

In FIG. 1, the 2nd inversion spring 5 which consists of a flexible material compared with the 1st inversion spring 4, and has elasticity was provided in the upper position of this 1st inversion spring 4. In FIG. The second reverse spring 5 is made of, for example, a rubber body formed in a dome shape, and the lower portion 6 abuts on the peripheral edge of the first reverse spring 4, and the first reverse spring 4 is connected to the second reverse spring 4. It has the press part 7 which transmits the pressing force to invert.

Further, the first inversion spring 4 and the second inversion spring 5 are inverted almost simultaneously between the government of the first inversion spring 4 and the pressing portion 7 of the second inversion spring 5. The gap dimension 8 was set in advance.

In addition, the stem 9 which can pressurize the 2nd reverse spring 5 in the upper position of the 2nd reverse spring 5 in FIG. 1 was provided.

In the 1st embodiment comprised in this way, when the stem 9 is pressurized and operated, the 2nd reverse spring 5 which consists of a rubber body will be pressed down by this stem 9, and the circumferential side part 10 will begin to bend, The pressing portion 7 abuts against the top of the first reverse spring 4 made of metal. Subsequently, due to the pressing force given to the stem 9, the first reversal spring is driven by a force applied through the pressing portion 7 of the second reversal spring 5 at about the same time as the second reversal spring 5 is reversed. (4) is reversed. The inversion of this first inversion spring 4 causes the first inversion spring 4 to also conduct to the fixed contact 3. As a result, a predetermined signal is output.

In this 1st Embodiment, the clearance dimension 8 which is a stroke until the press part 7 of the 2nd inversion spring 5 contacts the government part of the 1st inversion spring 4 is applied to the whole operation stroke. Can be included. That is, from the state in which the press part 7 of the 2nd inversion spring 5 abuts on the 1st inversion spring 4, this 1st inversion spring 4 is inverted and the fixed contact 3 is turned on. The stroke until conduction can be made the sum of the above-mentioned clearance gap 8, and a relatively long operation stroke can be realized.

In addition, since the first inversion spring 4 and the second inversion spring 5 can be inverted almost simultaneously by the setting of the clearance dimension 8 described above, the first inversion spring 4 made of metal It can be set as the click feeling which synthesize | combined the sensitive click feeling and the light and soft elastic dull click feeling of the 2nd reverse spring 5 which consists of a rubber body. In other words, a relatively sensitive click feeling can be realized as compared to the insensitive click feeling of the second inversion spring 5.

FIG. 2: is a figure which shows the operating force and the stroke characteristic of the 1st reverse spring 4 which consists of metal with which this 1st Embodiment is equipped. As shown in this FIG. 2, the stroke which forms the inversion area t1 is comparatively short. This ensures a sensitive click. In addition, the stroke S1 until the inversion operation is completed after the operation force is applied is also relatively short.

FIG. 3: is a figure which shows the operating force and the stroke characteristic of the 2nd reverse spring 5 which consists of a rubber body with which this 1st Embodiment is equipped. As shown in this FIG. 3, the stroke which forms the inversion area t2 is comparatively long. This results in a dull click feeling of light, soft elasticity. In addition, after the operation force is applied, the stroke S2 until the inversion operation is completed is relatively long.

Fig. 4 is a diagram showing operating force and stroke characteristics in the first embodiment. As shown in this FIG. 4, in this 1st Embodiment, the characteristic which combined the characteristic of the 1st inversion spring 4 shown in FIG. 2, and the characteristic of the 2nd inversion spring 5 shown in FIG. 3 is obtained. In FIG. 3, the stroke forming the inversion region t3 can be made shorter than the characteristics of the second inversion spring 5 shown in FIG. 3. Thereby, the click feeling which is more sensitive than the 2nd inversion spring 5 can be implement | achieved. Further, after the operation force is applied, the stroke S3 until the end of the inversion operation can be secured longer than the characteristics of the first inversion spring 4.

As described above, according to the first embodiment, both a relatively sensitive click feeling and a relatively long operation stroke can be realized, and excellent operability according to the installation purpose can be obtained.

Moreover, when the lower part 6 of the 2nd inversion spring 5 which consists of a rubber body abuts on the circumferential edge part of the 1st inversion spring 4 which consists of metal, at the time of inversion of the 1st inversion spring 4, The microscopic vibration generated in the first reversal spring 4 can be absorbed by the flexible second reversal spring 5, thereby preventing the occurrence of unpleasant vibration sounds.

FIG. 5: is a perspective view which shows 2nd Embodiment of this invention applied to each of the push button switch apparatus provided in multiple numbers through the sheet-like member. FIG. FIG. 6: is a longitudinal cross-sectional view which shows the principal part of 2nd Embodiment shown in FIG.

In these 2nd Embodiment shown to FIG. 5, 6, the some 1st inversion spring 12 which consists of metal was formed on the printed circuit board 11. As shown in FIG. On the upper side of this printed circuit board 11, the rubber sheet 14 in which the 2nd inversion spring 13 was integrally formed was formed. As shown in FIG. 6, on each 1st inversion spring 12, it arrange | positioned so that the corresponding 2nd inversion spring 13 may be located. On the printed circuit board 11, the 1st inversion spring is accompanied with the inversion operation of the 1st inversion spring 12 and the fixed contact pattern 15 which the circumferential edge part of each 1st inversion spring 12 always abuts. (12) The fixed contact pattern 16 which can conduct is formed.

Moreover, between the press part 17 of each 2nd inversion spring 13, and the part of 1st inversion spring 12, the 1st inversion spring 12 and the 2nd inversion spring 13 are substantially At the same time, the gap size 18 to be inverted was set in advance.

In this 2nd Embodiment, by pressing each 2nd reverse spring 13, this 2nd reverse spring 13 is bent and the press part 17 abuts against the part of 1st reverse spring 12. As shown in FIG. . The second reverse spring 13 is reversed by the pressing against the second reverse spring 13 which is subsequently performed. At this time, the first inversion spring 12 is inverted almost simultaneously, and the first inversion spring 12 also conducts to the fixed contact pattern 16. This conduction outputs a predetermined signal.

According to the setting of the clearance dimension 18 mentioned above, the 2nd embodiment comprised in this way can implement both a relatively sensitive click feeling and a comparatively long operation stroke similarly to 1st embodiment, and excellent operability. Can be obtained.

It is a figure which shows the principal part of 3rd Embodiment of this invention.

The third embodiment shown in FIG. 7 is applied to a sheet-like member having a plurality of push button switch devices on the printed circuit board 11, and includes a second reverse spring 13 included in the rubber sheet 14. Under each of them, a single switch device 19 was disposed. Although not shown here in this switch device 19, the 1st reverse spring 12 which consists of metals similar to 2nd Embodiment mentioned above was arrange | positioned. Moreover, this switch apparatus 19 is provided with the stem 20 which can pressurize the 1st reverse spring 12. As shown in FIG. Moreover, between the press part 17 and the stem 20 of the 2nd inversion spring 13, the 1st inversion spring 12 and the 2nd inversion spring 13 which are provided in the switch apparatus 19 are provided. The gap dimension 21 which inverts at about the same time was set.

In this 3rd Embodiment, by pressing each 2nd inversion spring 13, the corresponding 2nd inversion spring 13 is bent and this 2nd inversion spring 13 is the stem 20 of the switch apparatus 19. In FIG. A). The second reverse spring 13 is reversed by the subsequent pressing against the second reverse spring 13. In the meantime, the 1st inversion spring 12 which is not shown in the switch apparatus 19 is pressurized by the stem 20, and this 1st inversion spring 12 is substantially simultaneously with the inversion of the 2nd inversion spring 13. As shown in FIG. This is reversed. Thereby, the 1st inversion spring 12 is connected with the fixed contact pattern which is not shown on the printed circuit board 11, and a predetermined signal is output.

3rd embodiment comprised in this way also acquires the same effect as 1st, 2nd embodiment mentioned above according to the setting of the clearance dimension 21 mentioned above.

FIG. 8: is a longitudinal cross-sectional view which shows 4th Embodiment of this invention applied to the pushbutton switch apparatus of the single body accommodated in independent outer shell. FIG.

In this fourth embodiment, as shown in FIG. 8, the fixed contact at which the circumferential edge portion of the first reversal spring 4 always abuts is not provided, and the two fixed contacts are located near the center of the bottom of the housing 1. (30,31) was buried. The other structure is the same as that of 1st Embodiment mentioned above.

In the fourth embodiment configured as described above, when the government of the first reverse spring 4 is pressed by the pressing portion 7 of the second reverse spring 5 and reversed, the first reverse spring 4 is fixed. Both contact points 30 and 31 are in contact. Thereby, the connection between the fixed contacts 30 and 31 becomes conductive, and a predetermined signal is output.

According to the setting of the clearance dimension 8, this 4th embodiment also has the effect similar to that of 1st embodiment mentioned above.

9 is a longitudinal cross-sectional view showing the fifth embodiment of the present invention applied to a pushbutton switch device of a single body housed in an independent outer shell.

As shown in FIG. 9, this fifth embodiment includes, for example, an annular spacer 22 between the circumferential edge portion of the first inversion spring 4 and the lower portion 6 of the second inversion spring 5. Formed. The other structure is the same as that of 1st Embodiment mentioned above.

According to the setting of the clearance gap 8, the 5th embodiment comprised in this way also acquires the effect similar to the thing in 1st Embodiment mentioned above.

Moreover, especially by forming the spacer 22, the clearance dimension 8 formed between the press part 7 of the 1st inversion spring 4 and the 2nd inversion spring 5 can be adjusted. That is, in the case where a deviation occurs in the inversion timing between the first inversion spring 4 and the second inversion spring 5, the deviation can be easily corrected by appropriately selecting the height dimension of the spacer 22. Thereby, the inversion operation including both inversion of the first inversion spring 4 and inversion of the second inversion spring 5 can be realized with high accuracy, and the switch performance can be improved.

Fig. 10 is a longitudinal sectional view showing the sixth embodiment of the present invention applied to a pushbutton switch device of a single body housed in an independent outer shell.

This sixth embodiment has the arrangement structure of the fixed contacts 30 and 31 equivalent to those in the fourth embodiment shown in FIG. 8 described above, and is similar to that in the fifth embodiment shown in FIG. 9 described above. It is set as the structure provided with the equivalent spacer 22.

This sixth embodiment also has a spacer 22, whereby an effect equivalent to that of the fifth embodiment shown in FIG. 9 described above is obtained.

FIG. 11: is a longitudinal cross-sectional view which shows 7th Embodiment of this invention applied to the pushbutton switch apparatus of the single body accommodated in independent outer shell. FIG.

In this seventh embodiment, the flexible dustproof sheet 23 is formed to cover the first reverse spring 4. This dustproof sheet 23 was arrange | positioned so that it might be pinched | interposed with the spacer 22 and the lower part 6 of the 2nd reverse spring 5, for example. Other configurations are equivalent to the fifth embodiment shown in FIG. 9 described above.

According to the setting of the clearance gap 8, the 7th embodiment comprised in this way also acquires the effect similar to the thing in 1st embodiment shown in FIG. 1 mentioned above.

Moreover, since the spacer 22 was formed between the 1st inversion spring 4 and the lower part 6 of the 2nd inversion spring 5, the effect similar to 5th Embodiment shown in FIG. 9 mentioned above is demonstrated. Is obtained.

In addition, in particular, by providing the dustproof sheet 23 covering the first reverse spring 4, with the inversion operation of the flexible second reverse spring 5, the lower portion 6 of the second reverse spring 5 and The dust penetrating from between the inner wall surface of the housing 1 can prevent it from penetrating into the contact part formed by the 1st reversal spring 4 and the fixed contact 2,3. As a result, contact failure due to such dust can be prevented, and durability can be improved.

12 is a longitudinal sectional view showing an eighth embodiment of the present invention applied to a pushbutton switch device of a single body housed in an independent outer shell.

This eighth embodiment has a configuration equivalent to the arrangement of the fixed contacts 30 and 31 and the arrangement of the spacer 22 shown in FIG. 10 described above, and the seventh embodiment shown in FIG. 11 described above. It is set as the structure provided with the antivibration sheet | seat 23 which covers the 1st reverse spring 4 equivalent to the thing of to.

Moreover, the spacer 22 was arrange | positioned at the bottom part of the housing | casing 1, and the dustproof sheet 23 was arrange | positioned so that it might be pinched | interposed between this spacer 22 and the bottom part of the housing | casing 1. The other structure is equivalent to 1st Embodiment shown in FIG. 1 mentioned above.

In the eighth embodiment configured as described above, the effect similar to that in the first embodiment shown in FIG. 1 described above can be obtained according to the setting of the gap size 8.

In addition, by forming the spacer 22, the effect similar to that in 5th Embodiment shown in FIG. 9 mentioned above is acquired.

Moreover, by providing the dustproof sheet 23, the effect similar to the thing in 7th Embodiment shown in FIG. 11 mentioned above is acquired.

Moreover, although each said embodiment comprised the 1st reversal spring 4 or 12 from the metal, instead of consisting of the metal in this way, it has a suitable stiffness and elasticity, and a carbon coating etc. on the surface which opposes a fixed contact. You may comprise with the synthetic resin which formed the electrically conductive film of this.

In addition, although the 2nd reverse springs 5 and 13 were comprised with the rubber body in the above, you may comprise with the synthetic resin which has appropriate flexibility and elasticity instead of being comprised with the rubber body in this way.

As described above, the present invention provides a first reversal spring between a first reversal spring having rigidity and elasticity, and a second reversal spring made of a material more flexible than that of the first reversal spring and having resilience. It was set as the structure which set the clearance dimension which inverts a 2nd reverse spring substantially simultaneously. As a result, both a relatively sensitive click feeling and a relatively long operation stroke, which have been conventionally desired, can be realized, and desired excellent operability can be obtained.

Moreover, this invention set it as the structure which made the lower part of the said 2nd reverse spring contact the peripheral part of the said 1st reverse spring. Thereby, the micro vibration generated at the time of inversion of the first inversion spring can be absorbed by the second inversion spring, and the occurrence of unpleasant vibration sound can be prevented.

Moreover, this invention was set as the structure which provided the spacer between the lower part of the said 2nd reverse spring and the peripheral edge part of the said 1st reverse spring. As a result, the gap size can be adjusted by the spacer, and a high precision inversion operation of the first inversion spring and the second inversion spring can be realized, and the switch performance can be improved.

Moreover, this invention was set as the structure which provided the antivibration sheet which covers the said 1st reverse spring. As a result, intrusion of dust into the contact portion formed by the first reversal spring and the fixed contact portion can be prevented by the dustproof sheet, and poor contact of the contact portion can be prevented, thereby improving durability. have.

Claims (8)

A first contact spring having a fixed contact, a movable contact contactable to the fixed contact, a dome-shaped first reverse spring having rigidity and elasticity, and a pressing force for reversing the first reverse spring, and the first reverse spring A second reversal spring made of a flexible material and having elasticity, Each of the first reversing spring and the second reversing spring is made of a click spring having different operating force and stroke characteristics. Setting a gap in the initial state between the first reverse spring and the second reverse spring, The combined operating force and stroke characteristics obtained when the first reverse spring is pressurized through the second reverse spring are such that the stroke t3 of the reverse region is shorter than the stroke t2 of the reverse region of the second reverse spring. Further, the gap dimension is set such that the operating stroke S 3 from the addition of the operating force to the end of the inverting operation becomes a single click feeling longer than the operating stroke S 1 of the first reversing spring. Push button switch structure. The method of claim 1, wherein the first reversal spring is made of a synthetic resin or a metal having a conductive film on a surface opposing the fixed contact, The push button switch structure, wherein the second reverse spring is made of a synthetic resin or a rubber body. The push button switch structure according to claim 2, wherein the rubber body is formed in a dome shape. The push button switch structure according to claim 1, wherein a lower portion of the second reverse spring is brought into contact with a peripheral edge of the first reverse spring. The push button switch structure according to claim 1, wherein a spacer is provided between a lower portion of the second reverse spring and a peripheral edge of the first reverse spring. The push button switch structure according to claim 1, wherein a dustproof sheet covering the first reverse spring is provided. The push button switch structure according to claim 1, which is provided in a single push button switch device housed in an independent outer shell. The push button switch structure according to claim 1, which is provided in each of a plurality of push button switch devices formed through a sheet-like member.

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