JP2006216329A - Moving contact, sheet therewith using the same, and switch device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a moving contact which can make a moving stroke large in push operation, can reduce the number of part items for a switch, and can perform an assembly of the switch with ease, and to provide a sheet with moving contact using the same and a switch device. <P>SOLUTION: The moving contact comprises a first plate spring 4 and a second plate spring 5 having a larger spring force than the first plate spring 4. The first plate spring 4 is placed at one side of the second plate spring 5 integrally. The second plate spring 5 is placed in a manner capable of tilting by the first plate spring 4 bending with the other side of the second plate spring 5 as a base end. A total stroke in changing over the switch is composed of a first moving stroke along which the second plate spring 5 tilts by bending of the first plate spring 4, and a second moving stroke along which the second plate spring 5 moves by bending of the second plate spring 5. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a movable contact that can be used in various electronic devices such as a digital video, a camera, and a mobile phone, and can increase the operation stroke of a switch during a pressing operation, and a sheet with a movable contact and a switch device using the movable contact.

  The conventional switch structure that can increase the stroke of movement (moving) has an elastic body such as rubber sandwiched between the movable contact and the pushbutton, and presses the movable contact that can be reversed to operate it. A structure is known in which the central protrusion is formed of a deformable elastic body, and the elastic body for pressing is deformed (reduced) by a predetermined amount prior to the reversing operation of the movable contact when the switch is operated. . (For example, refer to Patent Document 1).

  The structure of this conventional switch is shown in FIGS. FIG. 22 is a cross-sectional view showing a conventional switch, FIG. 23 is a cross-sectional view showing a combined configuration of a push button and a pressing elastic body of the conventional switch, and FIG. 24 is a longitudinal cross-sectional view showing an operation state of the conventional switch.

  As shown in the figure, in the conventional switch configuration, the protrusion 109 on the lower surface of the push button 107 made of a rigid material that pushes the diaphragm-like reversing operation movable contact 106 to perform the reversing operation is formed of an elastic body such as rubber. Yes. That is, in FIG. 22, the push button 121 is configured to hold the pressing elastic body 122 at the center of the lower surface thereof.

  The pressing elastic body 122 is made of an elastic material such as rubber. As shown in FIG. 23, the pressing elastic body 122 has a two-stage cylindrical shape with the upper portion being a large-diameter flange portion 122B, and the tip thereof is a taper 122C. As shown by an arrow in the figure, the flange 122B is press-fitted into a stepped hole 121A having a wider inside at the bottom center of the push button 121 made of a rigid material, so that the two are coupled.

  Further, the deformation, that is, the reduction due to the pressing of the pressing elastic body 122 is set so as to start the deformation with a force smaller than the pressing force at the time of the reversing operation of the diaphragm-like reversing operation type movable contact 106 of the push-on switch. .

  Therefore, when the push button 121 starts to move downward by applying a pressing force P to the upper surface protrusion 123 of the push button 121 from the state shown in FIG. 24A, the pressing elastic body 122 at the center of the lower surface starts to shrink ( (B)), as the force applied to the upper surface protrusion 123 becomes larger, the diaphragm-like reversal operation type movable contact 106 is also gradually deformed, and the pressing force P becomes the force that causes the reversal operation type movable contact 106 to perform the reversal operation. If it exceeds, the reversing operation type movable contact 106 performs reversal operation with a moderation feeling ((c) in the same figure), and between the outer fixed contacts 103A, 103B and the central fixed contact 105, that is, between the connection terminals 102 and 104. Conduct.

  Thereafter, when the pushing force P applied to the upper surface protrusion 123 of the push button 121 is removed, the push button 121 is pushed back by the elastic force of the reversing movable contact 106 and the pushing elastic body 122, and the original FIG. Return to the state of a).

  In other words, the operation stroke of the conventional switch is increased by the dimension that the pressing elastic body 122 is deformed (reduced) by a force corresponding to the load during the reversal operation of the diaphragm-shaped reversal operation type movable contact 106.

JP-A-9-161599

  However, the above-described conventional switch has a problem in that the number of parts increases due to the configuration using an elastic body made of a separate member between the movable contact and the push button, and the assembly becomes complicated.

  Accordingly, the present invention solves the above-described problems, can increase the moving stroke during the pressing operation, reduces the number of parts of the switch, and can easily assemble the switch, and the movable contact using the same It is an object of the present invention to provide an attached sheet and a switch device.

In order to solve the above-mentioned problems, the present invention includes a first leaf spring and a second leaf spring having a spring force larger than that of the first leaf spring as the first solution means, and the second leaf spring. The first plate spring is integrally provided on one side of the second plate spring, and the second plate spring is tiltably arranged by bending the first plate spring with the other end of the second plate spring as a base end. The second plate spring is moved when the first plate spring is bent, and the second plate spring is moved when the second plate spring is bent. The configuration is such that the entire travel stroke at the time of switch switching is formed by the travel stroke.
As a second solution, the first plate spring and the second plate spring are integrally formed of the same spring metal plate, and a click reversing portion is formed on one of them. It was.
As a third solution, a plurality of the first and second leaf springs are continuously provided in a hoop shape, and an imaginary line connecting the centers of the first leaf spring and the second leaf spring. The outer periphery of the crossing direction is provided with a crosspiece with a hoop material.

As a fourth solution, a reversing part for click is provided on the second leaf spring, and when the second leaf spring is pressed, the first leaf spring is bent and the switch is before switching. The first moving stroke is formed and further pressed, whereby the second leaf spring is inverted to form the second moving stroke for generating a click feeling and switching the switch.
As a fifth solution, the first leaf spring is provided with a click reversing portion, and when the second leaf spring is pressed, the first leaf spring is reversed to cause a click feeling. The first moving stroke for generating and switching the switch is formed, and when pressed further, the second leaf spring is bent to form the second moving stroke after the switch is switched.
As a sixth solution, the second leaf spring is provided with a click reversing portion, and when the second leaf spring is pressed, the first leaf spring is bent to switch the switch. The first movement stroke to be performed is formed and further pressed, whereby the second leaf spring is inverted to form the click feeling and the second movement stroke after switching.
Further, as a seventh solving means, a click reversal portion is provided in the second leaf spring, and when the second leaf spring is pressed, the first leaf spring is bent and the first stage spring is bent. The first moving stroke for switching the switch is formed, and further pressed, the second leaf spring is reversed to generate a click feeling and switch the second stage switch. It was set as the structure which formed.

As an eighth solution, the first plate spring and the second plate spring having a spring force larger than that of the first plate spring are provided. During the pressing operation, the first plate spring and the second plate spring are provided. A sheet with a movable contact that forms a full movement stroke at the time of switch switching by bending a leaf spring, wherein the movable contact according to any one of the first to seventh solving means is used as a flexible adhesive sheet. The pressure-sensitive adhesive sheet and the movable contact were laminated on a peelable sheet that can be peeled together.
As a ninth solution, a base on which a common fixed contact and an individual fixed contact are disposed, and a first plate placed on the base and contacting and separating from the common fixed contact and the individual fixed contact A spring and a second leaf spring having a spring force larger than that of the first leaf spring, and the first leaf spring and the second leaf spring are bent during the pressing operation, so that the entire movement at the time of switching the switch is performed. A switch device having a stroke, wherein the movable contact according to any one of the first to seventh solving means is placed on the base on which the common fixed contact and the individual fixed contact are disposed. The configuration.

As described above, the movable contact of the present invention includes the first leaf spring and the second leaf spring having a spring force larger than that of the first leaf spring, and the first leaf spring has a first leaf spring on one side. A leaf spring is integrally provided, and the second leaf spring is disposed so as to be tiltable by bending the first leaf spring with the other end of the second leaf spring as a base end, and the first leaf spring is bent. Thus, the first movement stroke in which the second leaf spring tilts and the second movement stroke in which the second leaf spring moves when the second leaf spring is bent form a total movement stroke at the time of switching the switch. Therefore, since the movable contact is tilted by the first leaf spring provided integrally with the second leaf spring of the movable contact, a large operation (movement) stroke can be formed. Further, since both sides of the movable contact are not lifted but tilted with the other end on one side as the base end, a stable and good operation feeling can be obtained.
In addition, the first leaf spring and the second leaf spring are integrally formed of the same spring metal plate, and a click reversal portion is formed on either one, so that the first and second movable contact points The second plate spring and the click spring can be easily manufactured by press-molding the same metal plate.
Further, a plurality of first and second leaf springs are continuously provided in a hoop shape, and a hoop material is provided on the outer peripheral edge in a direction crossing an imaginary line connecting the centers of the first leaf spring and the second leaf spring. Therefore, even when the movable contact is repeatedly tilted, the separation mark from the hoop material does not scrape the contact or the base, and the generation of foreign matter can be suppressed and the life can be extended.

In addition, a click reversal part is provided on the second leaf spring, and when the second leaf spring is pressed, the first leaf spring is bent to form the first movement stroke before switching, and further pressing As a result, the second leaf spring is inverted to form a second movement stroke for generating a click feeling and switching the switch, so that the movement stroke until the switch is switched can be increased. You can get a click feeling.
The first leaf spring is provided with a click reversing portion, and when the second leaf spring is pressed, the first leaf spring is reversed to generate a click feeling and switch the first movement. By forming a stroke and further pressing, the second leaf spring bends to form the second movement stroke after switching the switch, so that a clear click feeling can be obtained when switching the switch. The moving stroke after switching can be increased.
Also, a click reversal portion is provided on the second leaf spring, and when the second leaf spring is pressed, the first leaf spring is bent to form a first movement stroke for switching the switch, and By being pressed, the second leaf spring is inverted to form the click feeling and the second movement stroke after the switch is changed, so that the movement stroke after the switch is changed can be increased, and further after the switch is changed. It can be detected with a click feeling when it is pressed.
In addition, a reversing part for click is provided on the second leaf spring, and when the second leaf spring is pressed, the first leaf spring is bent and the first movement stroke for switching the first stage switch is performed. By forming and further pressing, the second leaf spring reverses to form a second movement stroke that generates a click feeling and switches the second stage switch, so that the first stage and the second stage This makes it possible to configure a two-stage switch capable of switching between the switches, improving operability.

The sheet with a movable contact according to the present invention includes a first leaf spring and a second leaf spring having a spring force larger than that of the first leaf spring, and the first leaf spring and the second leaf spring during a pressing operation. A sheet with a movable contact that forms a full movement stroke at the time of switch switching by bending a leaf spring, wherein the movable contact according to any one of the first to seventh solving means is used as a flexible adhesive sheet. Since the adhesive sheet and the movable contact are laminated on a peelable sheet that can be peeled together, a sheet with a movable contact for a switch with a large moving stroke and easy switch assembly is provided. it can.
The switch device of the present invention includes a base on which a common fixed contact and an individual fixed contact are disposed, and a first leaf spring that is placed on the base and contacts and separates from the common fixed contact and the individual fixed contact. And a second leaf spring having a spring force larger than that of the first leaf spring, and the first leaf spring and the second leaf spring are bent at the time of pressing operation, thereby forming a total movement stroke at the time of switching the switch. Since the movable contact according to any one of the first to seventh solving means is placed on the base on which the common fixed contact and the individual fixed contact are disposed, the moving stroke is increased. A large switch device with a small number of parts can be provided.

Embodiments of the present invention are shown in FIGS. FIG. 1 is a plan view of a movable contact of the present invention, FIG. 2 is a sectional view of a principal part of a switch device using the movable contact of the present invention, and FIG. 3 is a sectional view of a principal part showing a first movement stroke state of the movable contact of the present invention. FIG. 4 and FIG. 4 are cross-sectional views of relevant parts showing the second moving stroke state of the movable contact.
5 is a plan view showing another embodiment of the movable contact of the present invention, FIG. 6 is a cross-sectional view of the main part showing another embodiment of the switch device, and FIG. 7 is a first moving stroke state of the movable contact. FIG. 8 is a cross-sectional view of the main part showing the second moving stroke state of the movable contact, FIG. 9 is a plan view showing still another embodiment of the movable contact of the present invention, and FIG. FIG. 11 is a cross-sectional view of the main part showing the first moving stroke state of the movable contact, and FIG. 12 is a cross-sectional view of the main part showing the second moving stroke state of the movable contact. FIG. 13 is a plan view showing still another embodiment of the movable contact of the present invention, FIG. 14 is a cross-sectional view of an essential part showing still another embodiment of the switch device, and FIG. FIG. 1 is a cross-sectional view of the main part showing the first moving stroke state of FIG. Is a fragmentary cross-sectional view similarly showing a second moving stroke state of the movable contact.
17 is a plan view showing a state in which the movable contact of the present invention is formed in a hoop shape, FIG. 18 is a plan view showing a sheet with a movable contact in which the movable contact of the present invention is attached to an adhesive sheet, and FIG. 19 is a movable contact. FIG. 20 and FIG. 21 are plan views showing still another embodiment of the movable contact of the present invention.

  1 and 2, the movable contact and switch device according to the present invention has an insulating property in which a common fixed contact 2 and an individual fixed contact 3 made of a conductive metal plate are arranged opposite to a flat surface, respectively. A base 1 made of a resin laminate and the like, and a movable contact made of first and second leaf springs 4 and 5 mounted on the base 1 and contacting and separating from the common fixed contact 2 and the individual fixed contact 3 6 is provided.

  The movable contact 6 is made of an electrically conductive thin metal plate having elasticity, and has a substantially circular second leaf spring 5 having a dome-like reversing portion 5a that can be reversed at the center, and the second leaf spring 5 It is formed from a substantially U-shaped first leaf spring 4 integrally formed by connecting to one side by a connecting portion 4a. The movable contact 6 is formed so that the spring force of the second leaf spring 5 is larger than that of the first leaf spring 4, and after the first leaf spring 4 is bent, When the second leaf spring 5 is reversed, a large movement stroke is obtained during the pressing operation.

  An elongated escape hole 4b is provided between the first leaf spring 4 and the second leaf spring 5 at the center position with the pair of connecting portions 4a interposed therebetween. By providing the relief hole 4b, even if the reversing portion 5a of the second leaf spring 5 is drawn to a relatively large size, the stress exerted on the first leaf spring 4 by this drawing is suppressed and deformation is prevented. Can do. Further, by providing the escape hole 4b, a part of the peripheral edge portion 5b of the second leaf spring 5 is provided between the first leaf spring 4 and the second leaf spring 5 (so as to face the escape hole 4b). Is exposed.

  Moreover, the 1st leaf | plate spring 4 is curving below toward the outer peripheral part from a pair of connection part 4a, and when the 2nd leaf | plate spring 5 is pressed, this curve is via the connection part 4a. When the stress is applied to the portion, the curved portion is bent, and the second leaf spring 5 is tilted.

  The movable contact 6 is placed on the base 1, and at this time, one end (the left end in FIG. 2) of the peripheral portion 5b of the second leaf spring 5 is always in contact with the common fixed contact 2. On the other hand, one end (the right end in FIG. 2) of the outer peripheral portion of the first leaf spring 4 is always in contact with the upper surface of the base 1. Further, the other end (the right end in FIG. 2) of the peripheral portion 5b of the second leaf spring 5 and the connecting portion 4a of the first leaf spring 4 are opposed to the upper surface of the base 1 while maintaining a certain distance. When the second leaf spring 5 is pressed, either the connecting portion 4a of the first leaf spring 4 or the peripheral portion 5b of the second leaf spring 5 comes into contact with the upper surface of the base 1. It has become a thing.

  In addition, the top lower surface of the reversing portion 5a of the second leaf spring 5 is opposed to the individual fixed contact 3 while maintaining a certain distance. Further, a contact portion 5c composed of a plurality of (for example, three in the present invention) protruding bots is formed on the bottom surface of the reversing portion 5a of the second leaf spring 5, and the contact portions 5c are individually provided. The contact part which can contact the fixed contact 3 is comprised.

  At this time, the movable contact 6 is biased upward at the other end (right end in FIG. 2) of the peripheral edge portion 5b of the second leaf spring 5 through the connecting portion 4a due to the spring property of the first leaf spring 4. The second leaf spring 5 is disposed so as to be tiltable and returnable with one end (left end in FIG. 2) of the peripheral edge 5b of the second leaf spring 5 as a fulcrum. Further, in this case, one end (the right end in FIG. 2) of the outer peripheral portion of the first leaf spring 4 is in contact with the upper surface of the base 1, and the connecting portion 4a of the first leaf spring 4 is When the first and second leaf springs 4 and 5 are not in operation, the first and second leaf springs 4 and 5 bulge upward so as to be positioned above the positions where the common fixed contact 2 and the individual fixed contact 3 on the base 1 are disposed. Is formed.

The operation of the switch device using the movable contact 6 having the above configuration will be described with reference to FIGS.
In the non-operating state, as shown in FIG. 2, the movable contact 6 is in contact with the common fixed contact 2 at one end (the left end in FIG. 2) of the peripheral edge 5b of the second leaf spring 5. The contact portion of the leaf spring 5 is separated from the individual fixed contact 3, and the switch is in an off state.

  Next, as shown in FIG. 3, when the top surface of the reversing portion 5a of the second leaf spring 5 is pressed by an operation member such as an electronic device (not shown), the second leaf spring 5 is moved to one end of the peripheral portion 5b ( The left leaf of FIG. 3 is tilted about a fulcrum, and as a result stress is applied to the curved portion via the connecting portion 4a of the first leaf spring 4, the first leaf spring 4 is bent downward, and the first leaf spring 4 The other end (the right end in FIG. 3) of the connecting portion 4a of the spring 4 and the peripheral portion 5b of the second leaf spring 5 moves downward, and the connecting portion 4a of the first leaf spring 4 or the second leaf spring 5 Either one of the other ends of the peripheral edge portion 5b comes into contact with the upper surface of the base 1 to obtain the first movement stroke. In this state, the switch is still off.

  From this state, as shown in FIG. 4, when an operation member (not shown) is further pressed, the reversing portion 5a of the second leaf spring 5 is reversed, and the contact portion 5c provided on the lower surface of the top of the reversing portion 5a In contact with the individual fixed contact 3, the switch is turned on. A second movement stroke is obtained by the reversing operation of the second leaf spring 5.

  As described above, the switch device using the movable contact 6 of the present invention includes the first leaf spring 4 and the second leaf spring 5 having a spring force larger than that of the first leaf spring 4, and this second leaf spring 5. The first plate spring 4 is integrally provided on one side of the plate spring 5, and the second plate spring 5 is tilted by bending the first plate spring 4 with the other end of the second plate spring 5 as a base end. The reversing portion 5a for click is provided in the second leaf spring 5, and the second leaf spring 5 is pressed, so that the first leaf spring 4 is bent and before the switch is switched. By forming a first movement stroke (pre-stroke) and further pressing, the second leaf spring 5 reverses to form a second movement stroke that generates a click feeling and switches the switch, thereby providing a switch. The total travel stroke up to During switching of the switch it has been assumed that it is possible to obtain a clear click feeling.

5 to 8 show another embodiment of the movable contact and switch device of the present invention.
In this case, the configuration of the movable contact and the fixed contact is partially different from the above embodiment. That is, the movable contact 16 of the present embodiment is the same in that it is formed of the first plate spring 14 and the second plate spring 15 that are integrally formed of the same metal plate. The spring 14 is provided with a click reversing portion 14c, and the individual fixed contact 13 provided on the base 11 is connected to the other end of the peripheral portion 15b of the second leaf spring 15 (the right end in FIG. 6). ) Or a part of the connecting portion 14a of the first leaf spring 14 with a certain distance.

  As shown in FIGS. 5 and 6, the movable contact 16 is made of a conductive thin metal plate having elasticity, a substantially circular second leaf spring 15 having a flat portion 15a at the center, and the second plate. The spring 15 is formed of a substantially U-shaped first leaf spring 14 which is integrally connected to one side of the spring 15 by a connecting portion 14a and has a reversible reversing portion 14c. In addition, an elongated escape hole 14b is provided between the first plate spring 14 and the second plate spring 15 at the center position with the pair of connecting portions 14a interposed therebetween. Further, by providing the escape hole 14b, a part of the peripheral portion 15b of the second leaf spring 15 is provided between the first leaf spring 14 and the second leaf spring 15 (so as to face the escape hole 14b). Is exposed.

  The reversing portion 14c of the first leaf spring 14 is provided with a pair of bent portions 14d protruding in a mountain shape extending from the outer peripheral portion to the escape hole 14b. By providing the bent portions 14d, the connecting portion 14a is provided. The reversing part 14c connected to is curved. When the second leaf spring 15 is pressed, a stress is applied to the bent portion 14d via the connecting portion 14a, so that a bending force acts on the curved portion, and the reversing portion of the first leaf spring 14 is applied. 14c is turned upside down.

  When the movable contact spring 16 is placed on the base 11, one end (the left end in FIG. 6) of the peripheral edge portion 15 b of the second leaf spring 15 is placed in a state where it is always in contact with the common fixed contact 12. On the other hand, the other end (the right end in FIG. 6) of the peripheral edge portion 15b of the second leaf spring 15 or a part of the connecting portion 14a of the first leaf spring 14 holds a certain distance from the individual fixed contact 13. Have been confronted. Either the connecting portion 14 a of the first leaf spring 14 or the peripheral edge portion 15 b of the second leaf spring 15 constitutes a contact portion that can contact the individual fixed contact 13.

  In the movable contact 16, the other end (the right end in FIG. 6) of the peripheral edge 15b of the second leaf spring 15 is biased upward via the connecting portion 14a due to the spring property of the first leaf spring 14. The second leaf spring 15 is disposed so as to be tiltable and returnable with one end (left end in FIG. 6) of the peripheral edge portion 15b as a fulcrum. In this case, one end (the right end in FIG. 6) of the outer peripheral portion of the reversing portion 14 c of the first leaf spring 14 is in contact with the upper surface of the base 11, and the first leaf spring 14 is connected. The portion 14 a is disposed so as to be positioned above the individual fixed contact 13 on the base 11 when the first and second leaf springs 14 and 15 are not in operation.

The operation of the switch device using the movable contact 16 having the above configuration will be described with reference to FIGS.
In the non-operating state, as shown in FIG. 6, the movable contact 16 is in contact with the common fixed contact 12 at one end (the left end in FIG. 6) of the peripheral edge portion 15b of the second leaf spring 15. Each contact portion of the second leaf springs 14 and 15 is separated from the individual fixed contact 13, and the switch is in an OFF state.

  Next, as shown in FIG. 7, when the upper surface of the flat portion 15a of the second leaf spring 15 is pressed by an operation member such as an electronic device (not shown), the second leaf spring 15 is moved to one end of the peripheral portion 15b (see FIG. 7 (the left end of FIG. 7) is tilted about the fulcrum, whereby stress is applied to the bent portion 14d via the connecting portion 14a of the first leaf spring 14, thereby causing a warping force to act on the curved portion of the reversing portion 14c. The reversing part 14c of the leaf spring 14 is reversed upward. Due to this inversion, the connecting portion 14a of the first leaf spring 14 and the other end (the right end in FIG. 7) of the peripheral edge portion 15b of the second leaf spring 15 move downward, and the connecting portion 14a of the first leaf spring 14 or Either one of the other ends of the peripheral edge portion 15b of the second leaf spring 15 comes into contact with the individual fixed contact 13, and the switch is turned on. In this state, the first movement stroke is obtained.

  From this state, as shown in FIG. 8, when an operation member (not shown) is further pressed, the flat portion 15a of the second leaf spring 15 is bent downward while the switch is turned on, and the central lower surface is the base. The movement stops upon contact with the upper surface of the table 11. The second movement stroke is obtained by the bending operation of the second leaf spring 15.

  Thus, the switch device using the movable contact 16 of the present invention includes the first leaf spring 14 and the second leaf spring 15 having a spring force larger than that of the first leaf spring 14, and this second leaf spring 15. A first plate spring 14 is integrally provided on one side of the plate spring 15 and the second plate spring 15 is tilted by bending the first plate spring 14 with the other end of the second plate spring 15 as a base end. In addition, the first plate spring 14 is provided with a click reversing portion 14c, and when the second plate spring 15 is pressed, the first plate spring 14 is reversed to generate a click feeling. The first movement stroke for switching the switch is formed, and further pressed, the second leaf spring 15 bends to form the second movement stroke (overstroke) after the switch switching, so that the switch Clear click feeling when switching It is possible to obtain, which is assumed to be larger movement stroke after changeover of the switch.

9 to 12 show still another embodiment of the movable contact and switch device of the present invention.
In this case, in the present embodiment, the movable contact 6 of the embodiment of FIGS. 1 to 4 described above is placed on the base 11 of the embodiment of FIGS. 5 to 8 described above. The same parts as those in the above-described embodiments and the above-described embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.
That is, in this embodiment, the movable contact spring 6 is placed on the substrate 11 with one end (the left end in FIG. 10) of the peripheral portion 5b of the second leaf spring 5 always in contact with the common fixed contact 12. On the other hand, the other end (right end in FIG. 10) of the peripheral portion 5b of the second leaf spring 5 or a part of the connecting portion 4a of the first leaf spring 4 is opposed to the individual fixed contact 13 while maintaining a certain distance. Has been. One of the connecting portion 4 a of the first leaf spring 4 and the peripheral portion 5 b of the second leaf spring 5 constitutes a contact portion that can come into contact with the individual fixed contact 13.

  In the movable contact 6, the other end (the right end in FIG. 10) of the peripheral portion 5b of the second leaf spring 5 is biased upward via the connecting portion 4a due to the spring property of the first leaf spring 4. The second leaf spring 5 is disposed so as to be tiltable and returnable with one end (left end in FIG. 10) of the peripheral edge portion 5b as a fulcrum. Further, in this case, one end (the right end in FIG. 10) of the outer periphery of the first leaf spring 4 is in contact with the upper surface of the base 11, and the connecting portion 4a of the first leaf spring 4 is When the first and second leaf springs 4 and 5 are not in operation, the first and second leaf springs 4 and 5 are disposed above the individual fixed contacts 13 on the base 11.

The operation of the switch device using the movable contact 6 having the above configuration will be described with reference to FIGS.
At the time of non-operation, as shown in FIG. 10, the movable contact 6 is in contact with the common fixed contact 12 at one end (the left end in FIG. 10) of the peripheral portion 5b of the second leaf spring 5. Each contact portion of the second leaf springs 4 and 5 is separated from the individual fixed contact 13, and the switch is in an OFF state.

  Next, as shown in FIG. 11, when the top surface of the reversing portion 5a of the second leaf spring 5 is pressed by an operation member such as an electronic device (not shown), the second leaf spring 5 is moved to one end ( 11 (left end in FIG. 11) is tilted, and by this, stress is applied to the curved portion via the connecting portion 4a of the first leaf spring 4, so that the first leaf spring 4 bends downward and the first leaf spring 4 The other end (the right end in FIG. 11) of the connecting portion 4a of the spring 4 and the peripheral portion 5b of the second leaf spring 5 moves downward, and the connecting portion 4a of the first leaf spring 4 or the second leaf spring 5 Either one of the other ends of the peripheral edge 5b comes into contact with the individual fixed contact 13, and the switch is turned on. In this state, the first movement stroke is obtained.

  From this state, as shown in FIG. 12, when the operation member (not shown) is further pressed, the reversing portion 5a of the second leaf spring 5 is reversed while the switch is turned on, and the lower center surface of the reversing portion 5a is reversed. Comes into contact with the upper surface of the base 11 and stops moving. A second movement stroke is obtained by the reversing operation of the second leaf spring 5.

  As described above, the switch device using the movable contact 6 of the present invention includes the first leaf spring 4 and the second leaf spring 5 having a spring force larger than that of the first leaf spring 4, and this second leaf spring 5. The first plate spring 4 is integrally provided on one side of the plate spring 5, and the second plate spring 5 is tilted by bending the first plate spring 4 with the other end of the second plate spring 5 as a base end. The second plate spring 5 is provided with a click reversing portion 5a. When the second plate spring 5 is pressed, the first plate spring 4 is bent to switch the switch. When the first movement stroke to be performed is formed and further pressed, the second leaf spring 5 is reversed to generate a click feeling and to form a second movement stroke (overstroke) after switching the switch. The movement stroke after switching can be increased and the switch It has become what can be sensed by click feeling that is further pressed after switching the switch.

13 to 16 show still another embodiment of the movable contact and switch device of the present invention.
In this case, in the present embodiment, the configuration of the base is partially different from the above-described embodiments of FIGS. 9 to 12. The base 21 of the present embodiment is formed with a pair of individual fixed contacts 23 which are arranged in parallel with the common fixed contact 22 and are composed of a first individual fixed terminal 23a and a second individual fixed terminal 23b. It is set as the structure which mounted the movable contact 6 of the Example of FIG. 1 thru | or FIG. The same parts as those in the above-described embodiments and the above-described embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

  That is, in this embodiment, the movable contact spring 6 is placed on the substrate 21 with one end (the left end in FIG. 14) of the peripheral portion 5b of the second leaf spring 5 always in contact with the common fixed contact 22. On the other hand, the other end (the right end in FIG. 14) of the peripheral portion 5b of the second leaf spring 5 or a part of the connecting portion 4a of the first leaf spring 4 maintains a constant distance from the first individual fixed contact 23a. Have been confronted. Then, either one of the connecting portion 4a of the first leaf spring 4 or the peripheral edge portion 5b of the second leaf spring 5 constitutes a contact portion that can come into contact with the first individual fixed contact 23a.

  In addition, the top lower surface of the reversing portion 5a of the second leaf spring 5 is opposed to the second individual fixed contact 23b with a certain distance. A contact portion 5c made up of a plurality of protrusions is formed on the bottom surface of the reversing portion 5a of the second leaf spring 5, and the contact portion 5c can contact the second individual fixed contact 23b. It constitutes a contact part.

  In the movable contact 6, the other end (the right end in FIG. 14) of the peripheral edge portion 5 b of the second leaf spring 5 is biased upward via the connecting portion 4 a due to the spring property of the first leaf spring 4. The second leaf spring 5 is arranged to be tiltable and returnable with one end (left end in FIG. 14) of the peripheral edge 5b as a fulcrum. In this case, one end (the right end in FIG. 14) of the outer peripheral portion of the first leaf spring 4 is in contact with the upper surface of the base 21, and the connecting portion 4a of the first leaf spring 4 is When the first and second leaf springs 4 and 5 are not operating, the first and second leaf springs 4 and 5 are disposed above the first individual fixed contact 23 a on the base 21.

The operation of the switch device using the movable contact 6 having the above configuration will be described with reference to FIGS.
In the non-operating state, as shown in FIG. 14, the movable contact 6 is in contact with the common fixed contact 22 at one end (the left end in FIG. 14) of the peripheral portion 5b of the second leaf spring 5. The contact portions of the second leaf springs 4 and 5 are separated from the first and second individual fixed contacts 23a and 23b, and the switch is in an OFF state.

  Next, as shown in FIG. 15, when the top surface of the reversing portion 5a of the second leaf spring 5 is pressed by an operation member such as an electronic device (not shown), the second leaf spring 5 is moved to one end ( The left leaf of FIG. 15 is tilted about a fulcrum, and as a result, stress is applied to the curved portion via the connecting portion 4a of the first leaf spring 4, whereby the first leaf spring 4 bends downward and the first leaf spring 4 The other end (the right end in FIG. 15) of the connecting portion 4a of the spring 4 and the peripheral portion 5b of the second leaf spring 5 moves downward, and the connecting portion 4a of the first leaf spring 4 or the second leaf spring 5 Either one of the other ends of the peripheral edge 5b comes into contact with the first individual fixed contact 23a, and the first-stage switch is turned on. In this state, the first movement stroke is obtained.

  From this state, as shown in FIG. 16, when an operation member (not shown) is further pressed, the reversing portion 5a of the second leaf spring 5 is reversed while the first-stage switch is turned on. The contact portion 5c provided on the lower surface of the top of 5a comes into contact with the second individual contact 23b, and the second-stage switch is turned on. A second movement stroke is obtained by the reversing operation of the second leaf spring 5.

  As described above, the switch device using the movable contact 6 of the present invention includes the first leaf spring 4 and the second leaf spring 5 having a spring force larger than that of the first leaf spring 4, and this second leaf spring 5. The first plate spring 4 is integrally provided on one side of the plate spring 5, and the second plate spring 5 is tilted by bending the first plate spring 4 with the other end of the second plate spring 5 as a base end. The reversing portion 5a for click is provided in the second leaf spring 5, and the second leaf spring 5 is pressed, so that the first leaf spring 4 is bent and the first stage spring is bent. A first movement stroke for switching the switch is formed, and further pressed, the second leaf spring 5 is reversed to form a second movement stroke for generating a click feeling and switching the second-stage switch. This makes it possible to configure a two-stage switch that can be switched between the first and second stages. Operability has become a thing to improve.

FIG. 17 shows a state in which the movable contact 6 of the present invention is in a hoop shape.
In this case, a plurality of movable contacts 6 composed of the first plate spring 4 and the second plate spring 5 are continuously provided on a hoop material 7 composed of a strip-shaped metal plate. The hoop material 7 and the movable contact 6 are connected to each other by a connecting bar portion 7 a provided on the outer peripheral edge of the second leaf spring 5. Further, the connecting bar portion 7a is formed on the outer peripheral edge of the second leaf spring 5 in a direction crossing the imaginary line LL connecting the centers of the first and second leaf springs 4, 5. It is formed on the outer peripheral edge 5b that avoids the range where it contacts the base 21 during operation. For this reason, even if the tilting of the movable contact 6 is repeatedly performed, the separation mark from the hoop material 7 does not scrape the fixed contact or the base, and the generation of foreign matters can be suppressed and the life can be extended. .

  According to the above-described embodiment of the present invention, the first plate spring 4 and the second plate spring 5 having a larger spring force than the first plate spring 4 are provided, and one side of the second plate spring 5 is provided. The first leaf spring 4 is integrally provided, and the second leaf spring 5 is tiltably arranged by bending or reversing the first leaf spring 4 with the other end of the second leaf spring 5 as a base end. A first moving stroke in which the second leaf spring 5 tilts when the first leaf spring 4 is bent or reversed, and a second leaf spring when the second leaf spring 5 is bent or reversed. The movable contact 6 is moved by the first leaf spring 4 provided integrally with the second leaf spring 5 of the movable contact 6 so that the entire movement stroke at the time of switching is formed by the second movement stroke of the movement 5. Since it is tilted, it can make a large movement (movement) stroke It made. In addition, since both sides of the movable contact 6 are not lifted but tilted with the other end on one side as the base end, a stable and good operation feeling can be obtained.

  In addition, the first leaf spring 4 and the second leaf spring 5 are integrally formed of the same spring metal plate, and a click reversal portion is formed on one of them, so that the first movable contact 6 is the first. The second plate springs 4 and 5 and the click spring can be easily manufactured by press-molding the same metal plate.

  In addition, the switch device of the present invention is mounted on the bases 1, 11, 21, and the first leaf spring 4, which contacts and separates from the common fixed contacts 2, 12, 22 and the individual fixed contacts 3, 13, 23 14 and the second leaf springs 5 and 15 having a spring force larger than that of the first leaf springs 4 and 14, and the first leaf springs 4 and 14 and the second leaf springs 15 and 15 having a spring force larger than that of the first leaf springs 4 and 14. A switch device in which the plate springs 5 and 15 are bent to form a full movement stroke at the time of switching. The movable contacts 6 and 16 are connected to the common fixed contacts 2, 12 and 22 and the individual fixed contacts 3, 13 and 23. Therefore, a switch device having a large movement stroke and a small number of parts can be provided.

18 and 19 show a sheet with a movable contact in which the movable contact 6 of the present invention is adhered to an adhesive sheet, and a switch device using this sheet with a movable contact. Note that the same parts described in FIGS. 13 to 16 are denoted by the same reference numerals and description thereof is omitted.
The pressure-sensitive adhesive sheet 31 is made of an insulating film material such as polyester resin, and is formed in a flexible sheet shape. An adhesive 32 is partially applied to the lower surface of the pressure-sensitive adhesive sheet 31, and the movable contact 6 including the first and second leaf springs 4 and 5 is formed on the lower surface side of the pressure-sensitive adhesive sheet 31 by the adhesive 32. It is stuck.

  In this case, a non-adhesive portion (an unapplied portion of the adhesive 32) is formed on the lower surface of the adhesive sheet 31 corresponding to the upper surface side of the first plate spring 4, and the upper surface side of the second plate spring 5 is formed. Correspondingly, an adhesive portion (applied portion of the adhesive 32) is formed, and the movable contact 6 is attached to the adhesive sheet 31 only at the upper surface side portion of the second leaf spring 5. As described above, since the non-adhesive portion is formed on the upper surface of the first leaf spring 4 and the adhesive portion is formed on the upper surface of the second leaf spring 5 on the lower surface of the adhesive sheet 31, the first leaf spring 4. Therefore, a reliable operation can be obtained.

  Further, a spacer sheet 33 made of an insulating film material such as polyester resin and having an accommodation hole 33a in which the movable contact 6 is accommodated is attached to the lower surface of the adhesive sheet 31. The adhesive sheet 31 including the spacer sheet 33 and the movable contact 6 composed of the first and second leaf springs 4 and 5 are integrated so that dust, foreign matter, etc. adhere to the movable contact 6 during transportation and assembly. By laminating on a peelable release sheet (not shown) having the role of a protective sheet that prevents the sheet from forming, a sheet with a movable contact is formed.

FIG. 19 shows a switch device using the sheet with a movable contact according to the present invention. On the base 21 on which the common fixed contact 22 and the first and second individual fixed contacts 23a and 23b are arranged, After the release sheet is peeled off, the movable contact-attached sheet is stuck and laminated with an adhesive 34 applied to the lower surface of the spacer sheet 33.
Since the operation of the switch device of the present invention is the same as that described in the configuration of the switch device shown in FIGS.

Thus, the sheet | seat with a movable contact using the movable contact 6 of this invention is equipped with the 1st leaf | plate spring 4 and the 2nd leaf | plate spring 5 with larger spring force than this 1st leaf | plate spring 4, and presses. At the time of operation, the first leaf spring 4 and the second leaf spring 5 are bent, and a sheet with a movable contact that forms the entire movement stroke at the time of switch switching is attached to the lower surface side of the flexible adhesive sheet 31. In addition, since the adhesive sheet 31 and the movable contact 6 are laminated on a release sheet that can be integrally peeled off, dust or foreign matter adheres to the contact portion when the sheet with the movable contact is conveyed or when the switch is assembled. It is only necessary to peel off the release sheet of the movable contact sheet and stack it on the base 21 on which the fixed contacts 22 and 23 are arranged, so that the moving stroke is large and the switch can be easily assembled. For switch It has become a thing that can provide with a movable contact sheet.
In addition, the sheet | seat with a movable contact of this invention replaces with the combination of the above-mentioned movable contact 6 and the base 21, and the sheet | seat with a movable contact comprised by the combination of the movable contact demonstrated above in FIG. 1 thru | or FIG. It is also possible.

20 and 21 show still another embodiment of the movable contact of the present invention.
The movable contact 56 shown in FIG. 20 is made of a conductive thin metal plate having elasticity, and has a substantially circular second leaf spring 55 having a dome-like reversing portion 55a that can be reversed at the center, and the second plate. The spring 55 is formed from a pair of first leaf springs 54 that are integrally formed so as to protrude from one side of the spring 55 via a connecting portion 54a. The movable contact 56 is formed so that the spring force of the second leaf spring 55 is larger than that of the first leaf spring 54. After the first leaf spring 54 is bent, The second leaf spring 55 is reversed so that a large movement stroke can be obtained during the pressing operation.

  Further, between the pair of second leaf springs 55, a part of the peripheral edge portion 55b of the second leaf spring 55 is exposed. In addition, the first leaf spring 54 is curved downward from the pair of connecting portions 54a toward the free end. When the second leaf spring 55 is pressed, the first leaf spring 54 is interposed via the connecting portion 54a. When the stress is applied to the curved portion, the curved portion is bent, and the second leaf spring 55 is tilted.

  The movable contact 66 shown in FIG. 21 is made of a conductive thin metal plate having elasticity, and has a substantially circular second leaf spring 65 having a dome-shaped reversal portion 65a that can be reversed at the center, and the second The leaf spring 65 is formed of a first leaf spring 64 that is integrally formed so as to protrude from the peripheral edge portion 65b of the leaf spring 65 via a connecting portion 64a. Similarly, the movable contact 66 is formed so that the spring force of the second leaf spring 65 is larger than that of the first leaf spring 64, and the first leaf spring 64 is bent. Thereafter, the second leaf spring 65 is reversed so that a large movement stroke is obtained during the pressing operation.

  Similarly, the first leaf spring 64 is curved downward from the connecting portion 64a toward the free end. When the second leaf spring 65 is pressed, the first leaf spring 64 is interposed via the connecting portion 64a. When the bending portion is stressed, the bending portion bends and the second leaf spring 65 tilts.

Note that the structure and operation of the switch device using the movable contacts 56 and 66 are the same as those of the above-described embodiment, and thus the description thereof is omitted here.
In such a switch device using the movable contacts 56 and 66 of the above embodiment, it is needless to say that the same operational effects as those of the above embodiment can be obtained. Further, according to the configuration of the movable contacts 56 and 66, it can be formed small, so that the material yield can be improved and the cost can be reduced, and the wiring pattern can be easily formed on the base.

It is a top view which shows the movable contact of this invention. It is principal part sectional drawing which shows the switch apparatus using the movable contact of this invention. It is principal part sectional drawing which shows the 1st movement stroke state of the movable contact of this invention. It is principal part sectional drawing which shows the 2nd movement stroke state of the movable contact of this invention. It is a top view which shows the other Example of the movable contact of this invention. It is principal part sectional drawing which shows the other Example of the switch apparatus of this invention. It is principal part sectional drawing which shows the 1st movement stroke state of the movable contact of this invention. It is principal part sectional drawing which shows the 2nd movement stroke state of the movable contact of this invention. It is a top view which shows other Example of the movable contact of this invention. It is principal part sectional drawing which shows other Example of the switch apparatus of this invention. It is principal part sectional drawing which shows the 1st movement stroke state of the movable contact of this invention. It is principal part sectional drawing which shows the 2nd movement stroke state of the movable contact of this invention. It is a top view which shows other Example of the movable contact of this invention. It is principal part sectional drawing which shows other Example of the switch apparatus of this invention. It is principal part sectional drawing which shows the 1st movement stroke state of the movable contact of this invention. It is principal part sectional drawing which shows the 2nd movement stroke state of the movable contact of this invention. It is a top view which shows the state which made the movable contact of this invention the hoop shape. It is a top view which shows the sheet | seat with a movable contact which stuck the movable contact of this invention on the adhesive sheet. It is sectional drawing which shows the switch apparatus using the sheet | seat with a movable contact of this invention. It is a top view which shows other Example of the movable contact of this invention. It is a top view which shows other Example of the movable contact of this invention. It is sectional drawing which shows the conventional switch. It is sectional drawing which shows the connection structure of the pushbutton and the elastic body for a conventional switch. It is sectional drawing which shows the operation state of the conventional switch.

Explanation of symbols

1: base 2: common fixed contact 3: individual fixed contact 4: first leaf spring 4a: connecting portion 4b: escape hole 5: second leaf spring 5a: reversing portion 5b: peripheral portion 5c: contact portion 6: Movable contact 7: Hoop material 7a: Connecting bar portion 11: Base 12: Common fixed contact 13: Individual fixed contact 14: First leaf spring 14a: Connection portion 14b: Escape hole 14c: Reversing portion 14d: Bending portion 15: Second leaf spring 15a: flat portion 15b: peripheral edge portion 16: movable contact 21: base 22: common fixed contact 23: individual fixed contact 23a: first individual fixed contact 23b: second individual fixed contact 31: adhesive Sheet 32: Adhesive 33: Spacer sheet 33a: Housing hole 34: Adhesive 54: First leaf spring 54a: Connection portion 55: Second leaf spring 55a: Reversing portion 55b: Peripheral portion 56: Movable contact point 64: First 1 leaf spring 64a Connecting portion 65: second plate spring 65a: reversing section 65b: peripheral portion 66: movable contact

Claims (9)

  A first plate spring and a second plate spring having a spring force larger than that of the first plate spring, the first plate spring being integrally provided on one side of the second plate spring, and the second plate spring. The second plate spring is disposed so as to be tiltable when the first plate spring is bent with the other end of the plate spring as the base end, and the second plate spring is bent so that the second plate spring is bent. A total movement stroke at the time of switch switching is formed by a first movement stroke in which the leaf spring tilts and a second movement stroke in which the second leaf spring moves by bending the second leaf spring. A movable contact.   The said 1st leaf | plate spring and the said 2nd leaf | plate spring are integrally formed with the same spring metal plate, and the inversion part for click was formed in any one of Claim 1 characterized by the above-mentioned. Movable contact.   A plurality of the first and second leaf springs are continuously provided in a hoop shape, and a hoop material is provided on an outer peripheral edge in a direction crossing an imaginary line connecting the centers of the first leaf spring and the second leaf spring. The movable contact according to claim 2, further comprising a connecting bar portion.   A reversing part for click is provided in the second leaf spring, and when the second leaf spring is pressed, the first leaf spring is bent to form the first movement stroke before switch switching, 3. The movable contact according to claim 2, wherein, when further pressed, the second leaf spring is reversed to form the second movement stroke for generating a click feeling and switching a switch.   The first leaf spring is provided with a click reversing portion, and when the second leaf spring is pressed, the first leaf spring is reversed to generate a click feeling and switch switching. 3. The movable contact according to claim 2, wherein when the first movement stroke is formed and further pressed, the second leaf spring is bent to form the second movement stroke after switching. 4.   A reversing part for click is provided in the second leaf spring, and when the second leaf spring is pressed, the first leaf spring is bent to form the first movement stroke for switching the switch. 3. The movable contact according to claim 2, wherein, when further pressed, the second leaf spring is inverted to form the second movement stroke after generating a click feeling and switching the switch.   The first plate spring is provided with a click reversing portion, and when the second plate spring is pressed, the first plate spring is bent to switch the first stage switch. The stroke is formed and further pressed, whereby the second leaf spring is reversed to form the second movement stroke for generating a click feeling and switching the second-stage switch. Item 3. The movable contact according to Item 2.   A first leaf spring and a second leaf spring having a spring force larger than that of the first leaf spring, and switching the switch by bending the first leaf spring and the second leaf spring during a pressing operation. A movable contact sheet having a full movement stroke at the time, wherein the movable contact according to any one of claims 1 to 7 is attached to a lower surface side of a flexible adhesive sheet, A sheet with a movable contact, wherein the movable contact is laminated on a release sheet that can be integrally peeled. From a base on which a common fixed contact and an individual fixed contact are disposed, a first leaf spring mounted on the base and contacting and separating from the common fixed contact and the individual fixed contact, and the first plate spring And a second leaf spring having a large spring force, wherein the first leaf spring and the second leaf spring are bent at the time of pressing operation to form a full movement stroke at the time of switch switching. 8. A switch device comprising: the movable contact according to claim 1 placed on the base on which the common fixed contact and the individual fixed contact are disposed.

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