WO2019176405A1

WO2019176405A1 - Push switch

Info

Publication number: WO2019176405A1
Application number: PCT/JP2019/004714
Authority: WO
Inventors: 祐紀平田; 秀樹光岡
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2018-03-12
Filing date: 2019-02-08
Publication date: 2019-09-19
Also published as: JPWO2019176405A1

Abstract

The present disclosure provides a push comprising: a first contact; a second contact; a third contact; a contacting member having a contact segment; and a movable member. The contact segment is disposed at a part lower than the movable member. When the movable member is pushed and the contact segment is thereby pushed downwardly by the movable member, the contacting member electrically connects the second contact to the first contact, and when the contact segment is further pushed downwardly by the movable member, the contacting member electrically connects the third contact and the second contact to the first contact.

Description

Push switch

The present disclosure relates to a push switch used for an input operation unit of various electronic devices.

As a conventional push switch, a push switch having a configuration according to Patent Document 1 is known.

The push switch according to Patent Document 1 includes a case, an outer contact, a center contact, a contact member including a contact piece, a rubber movable member, and an operating body. The case is composed of a resin base member and a resin cylindrical member combined with the base member. The outer contact and the center contact are disposed on the base material portion. The contact member is made of a thin metal plate having elasticity, and includes a ring-shaped frame portion and a linear cantilever-shaped contact piece formed integrally with the frame portion inside the frame portion. The contact piece is formed in an inclined state so that the tip end is higher than the connection portion with the frame portion. The contact member is disposed such that the frame portion rests on the outer contact. The tip of the contact piece faces the center contact with a gap. The movable member integrally includes a dome-shaped portion that opens downward and a protrusion on the outer surface of the dome-shaped portion. The movable member is arranged so that the dome-shaped portion is placed on the frame portion. Furthermore, the operating body is disposed so as to overlap the protrusion, and the operating body has an end in the opposite direction to the base portion protruding outward from the case.

In the push switch having the above configuration, when the operating body is pushed in, the dome-shaped portion of the movable member is buckled and deformed. The contact piece is pushed by the dome-shaped portion in accordance with the buckling deformation, and the contact piece moves to the base material portion side so that the inclination angle becomes small. When the tip of the contact piece comes into contact with the center contact, the switch is turned on. When the pressing force to the operating body is removed, the movable member and the contact piece self-restore to the original shape, and the switch returns to the off state.

JP 2000-188037 A

The push switch according to an aspect of the present disclosure includes a base material portion including a first surface, a first contact disposed on the base material portion so as to be partially exposed from the first surface, and the first surface. A second contact disposed on the base portion so that a portion thereof is exposed; a third contact disposed on the base portion such that a portion is exposed from the first surface; and The contact member is disposed in the first direction, has one end portion fixed and the other end portion is movable, and a contact member disposed in the first direction with respect to the first surface. And a movable member having a recess opening toward the surface. The contact piece of the contact member is disposed in a second direction opposite to the first direction with respect to the movable member, the movable member is pressed in the second direction, and the contact is performed by the movable member. When the piece is pressed in the second direction, the contact member electrically connects the second contact to the first contact, and when the contact piece is further pressed in the second direction by the movable member. The contact member electrically connects the third contact and the second contact to the first contact.

External appearance perspective view of push switch by Embodiment 1 The exploded perspective view of the push switch by Embodiment 1 Sectional drawing of the push switch by Embodiment 1 explaining arrangement | positioning of the contact piece with respect to a 2nd contact and a 3rd contact Sectional drawing of the push switch by Embodiment 1 explaining arrangement | positioning of the contact member with respect to a 1st contact Plan view of base material of push switch according to embodiment 1 The top view which shows the state which has arrange | positioned the contact member in the base material part shown in FIG. External perspective view of a push switch according to a second embodiment Exploded perspective view of a push switch according to a second embodiment Exploded perspective view of another push switch according to the second embodiment Sectional drawing of the push switch by 2nd Embodiment Sectional drawing of the other push switch by 2nd Embodiment The top view of the base material part of the push switch by a 2nd embodiment The top view which shows the state which has arrange | positioned the contact member in the base material part shown in FIG. The top view which shows the state which has arrange | positioned the contact member and the movable member in the base material part shown in FIG. The top view which shows the state which has arrange | positioned the contact member and another movable member in the base material part shown in FIG. Schematic which shows the state before a contact piece contacts a 2nd contact and a 3rd contact Schematic which shows the state before a contact piece contacts a 2nd contact and a 3rd contact Schematic which shows the state in which the contact piece contacted the 2nd contact and the 3rd contact

The diversification of input operation units of electronic devices has progressed, and push switches are often required to have various specifications including operation modes. For example, a push switch of a two-stage operation type that can change the state of the first-stage switch after the switch state of the first-stage switch is obtained while obtaining a click feeling during operation may be desired. The conventional push switch described above has a problem that it cannot cope with this specification.

The push switch of the present disclosure can realize a two-stage operation type push switch while obtaining a click feeling.

The push switch according to the present embodiment will be described below with reference to the drawings. Note that the configuration described below is merely an example of the present disclosure, and the present disclosure is not limited to the configuration described below. Accordingly, various modifications can be made in accordance with the design and the like as long as they do not depart from the technical idea according to the present disclosure, even if the configuration is not described below.

In this disclosure, the term “up”, “down”, “upward”, “downward”, and the like are used to describe the directions, but these only indicate relative positional relationships. However, the present disclosure is not limited thereto.

In the embodiment described below, “upward in FIG. 3” is described as “upper”, and “lower in FIG. 3” is described as “lower”. A direction perpendicular to the vertical direction will be described as a “horizontal direction”.

3 may be described as a “first direction” and a downward direction in FIG. 3 as a “second direction”.

(Embodiment 1)
1 is an external perspective view of the push switch 1 according to the first embodiment, FIG. 2 is an exploded perspective view of the push switch 1, and FIG. 3 is a push switch for explaining the arrangement of the contact piece 40 with respect to the second contact 20 and the third contact 30. 4 is a cross-sectional view of the push switch 1 for explaining the arrangement of the contact member 50 with respect to the first contact 10. FIG. 5 is a plan view of the base material portion 100, and FIG. 6 is a plan view showing a state in which the contact member 50 is arranged on the base material portion 100.

As shown in FIGS. 1, 2, and 3, the push switch 1 includes a base material portion 100, a cylindrical member 110 coupled to the base material portion 100, and fixed contact portions (first contact 10, second contact). 20, a third contact 30), a contact member 50, a movable member 70, and an operating body 80. The movable member 70 includes a dome-shaped portion 62, a convex portion 62A (see FIG. 3), and a protruding portion 64. The protrusion 64 is formed on the outer surface of the dome-shaped portion 62 in the first direction (see FIG. 3), and the convex portion 62A protrudes from the dome-shaped portion 62 in the second direction (see FIG. 3). . The dome-shaped portion 62, the convex portion 62A, and the protruding portion 64 are integrally formed. The movable member 70 is made of rubber. The operating body 80 is disposed so as to cover the protrusion 64.

The base material part 100 has a recess, and the base material part 100 and the cylindrical member 110 constitute a case. The base material portion 100 and the cylindrical member 110 are made of resin. And the fixed contact part (the 1st contact 10, the 2nd contact 20, and the 3rd contact 30) is formed in the bottom face (henceforth one surface 102) of the crevice of substrate part 100. The contact member 50 is accommodated in the recess of the base material portion 100. The fixed contact portion (the first contact 10, the second contact 20, the third contact 30) and the contact member 50 constitute a switch contact portion.

As shown in FIG. 5, the surfaces of the first contact 10, the second contact 20, and the third contact 30 are exposed from the one surface 102 and are electrically independent from each other. The first contact 10 is a so-called outer contact. The exposed surface 20A of the second contact 20 is disposed closer to the center than the exposed surface 10A of the first contact 10 when the base material portion 100 is viewed from above (front in FIG. 5), and the third contact 30 is exposed. The surface 30 A is disposed at a position closer to the center of the base material portion 100 than the exposed surface 20 A of the second contact 20. In the present embodiment, the exposed surface 30 A of the third contact 30 is exposed at the center of the base material portion 100. With respect to a virtual straight line connecting the center of the exposed surface 20A of the second contact 20 and the center of the exposed surface 30A of the third contact 30, the exposed surface 10A of the first contact 10 is not positioned on the virtual straight line and the extension line. It is configured. In other words, an imaginary straight line connecting the center of the exposed surface 30A of the third contact 30 and the center of the exposed surface 10A of the first contact 10, the center of the exposed surface 30A of the third contact 30 and the exposed surface of the second contact 20 The first contact point 10, the second contact point 20, and the third contact point 30 are arranged so as to intersect with an imaginary straight line connecting the centers of the two.

This configuration facilitates the routing of the second contact 20 and the third contact 30 as shown in FIG. 5 and is advantageous when dealing with small products.

Note that, as in the present embodiment, it is desirable that the exposed surface 30A of the third contact 30 be disposed near the center of the base material portion 100. However, the exposed surface 30 A of the third contact 30 is not necessarily located at the center of the base material portion 100.

Further, in the push switch 1 of the present embodiment, the exposed surface 20A of the second contact 20 is not located between the exposed surface 10A of the first contact 10 and the exposed surface 30A of the third contact 30. The distance between the exposed surface 10A of the contact 10 and the exposed surface 30A of the third contact 30 can be reduced. As a result, the area when the push switch 1 is viewed from above can be reduced. If the exposed surface 20A of the second contact 20 is located between the exposed surface 10A of the first contact 10 and the exposed surface 30A of the third contact 30, the exposed surface 10A of the first contact 10 and the third contact 30 will be described. It is necessary to increase the distance from the exposed surface 30A.

Further, in the push switch 1 of the present embodiment, the third contact 30 and the second contact are set such that the height of the exposed surface 30A of the third contact 30 is lower than the height of the exposed surface 20A of the second contact 20. 20 is provided in the base material part 100.

Details of these configurations will be described later with reference to FIGS. 13A to 13C.

The contact member 50 is made of a thin metal plate having elasticity, and has a contact piece 40 and a frame portion 52 surrounding the contact piece 40. The frame portion 52 has a substantially circular ring shape that is unbroken in a plan view. An integrally formed restricting portion 54 is provided on the periphery of the frame portion 52. The restricting portion 54 is provided to protrude outward at a symmetrical position of the frame portion 52. That is, the two restricting portions 54 are provided in the frame portion 52 so as to protrude outward along one diameter of the frame portion 52. Each restricting portion 54 is provided with two locking pieces 56. Two locking pieces 56 provided in the same restricting portion 54 are provided so as to be spaced apart from the frame portion 52 in the horizontal direction. That is, the locking piece 56 is provided at a position near the outer end of the restricting portion 54. The locking piece 56 is formed by bending the side portion of the restricting portion 54 upward. The locking piece 56 has a claw-like shape.

The outer shape of the contact piece 40 is a shape extending linearly. The contact piece 40 has a cantilever shape. The contact piece 40 is formed with a length that fits within the frame portion 52. The base 44 of the contact piece 40 is connected to the inner periphery of the frame portion 52. As shown in FIG. 3, in a side view, the contact piece 40 is inclined so as to rise from the root 44 toward the end 42. As shown in FIG. 2, the contact piece 40 has a central portion 46 that is wider than the end portion 42 and the base 44 between the end portion 42 and the base 44 as viewed from above. The central portion 46 has, for example, a substantially circular shape in plan view.

As described above, the first contact 10 to the third contact 30 are arranged in a fixed state on the base member 100, and the exposed surfaces 10A to 30A are exposed from the one surface 102. As shown in FIGS. 5 and 6, an engagement portion 104 that is recessed outward in a rectangular shape is provided on the inner wall that forms the recess of the base material portion 100. As shown in FIG. 5, the engagement portion 104 is provided at an outer position than the exposed surface 10 A of the first contact 10 when the base material portion 100 is viewed from above. The restricting portion 54 is disposed in the engaging portion 104, and movement of each of the outer end of the locking piece 56 and the outer end of the restricting portion 54 is restricted by the inner surface portion of the corresponding engaging portion 104.

As shown in FIG. 4, the contact member 50 is disposed such that the frame portion 52 is in contact with the exposed surface 10 A of the first contact 10. As shown in FIG. 3, the end 42 of the contact piece 40 faces the exposed surface 20 A of the second contact 20 with a gap, and the center 46 of the contact piece 40 has a gap to the exposed face 30 A of the third contact 30. Open and face each other. That is, the surface (the lower surface of the contact piece 40) facing the one surface 102 (see FIG. 2) of the contact piece 40 is spaced from both the exposed surface 20A of the second contact 20 and the exposed surface 30A of the third contact 30. Open and face each other. The direction in which the contact piece 40 and the exposed surface 20A of the second contact 20 face each other and the direction in which the contact piece 40 and the exposed surface 30A of the third contact 30 face each other are directions along a so-called operation direction (second direction). It is.

The movable member 70 has a dome-shaped portion 62 having a lower opening and a protrusion 64 on the outer surface (upward in FIG. 3) of the dome-shaped portion 62. The dome-shaped portion 62 and the protrusion 64 are integrally formed. . The movable member 70 has a recess 70A that opens downward. That is, the inner wall of the concave portion 70A of the movable member 70 is formed by the inner wall of the dome-shaped portion 62 and the outer surface of the convex portion 62A. The dome-shaped portion 62 is disposed so that the end portion on the opening side (the lower end in FIG. 3) overlaps the frame portion 52. The outer surface of the dome-shaped portion 62 is separated from the locking piece 56. If it is this structure, generation | occurrence | production of the damage to the dome-shaped part 62 by the locking piece 56 can be suppressed. On the top surface of the dome-shaped portion 62, a convex portion 62A for pushing the central portion 46 of the contact piece 40 is provided. Here, the top surface of the dome-shaped portion 62 is the upper surface of the dome-shaped portion 62. The tip (lower end) of the convex portion 62A is a flat surface. And in the state where the operation body 80 is not pressed, the dome-shaped part 62 and the convex part 62A are separated from the contact piece 40 (see FIGS. 3 and 4).

The operating body 80 is disposed so as to cover the upper portion of the protruding portion 64. The operating body 80 has a portion protruding outward from the hole of the cylindrical member 110. Note that the operating body 80 is subjected to retaining and rotation regulation by engaging with the cylindrical member 110 constituting the case.

As described above, the push switch 1 is configured.

Next, the operation of the push switch 1 will be described with reference to FIGS. Details of the operation of the contact piece 40 will be described with reference to schematic views shown in FIGS. 13A to 13C. FIG. 13A is a schematic diagram illustrating a state before the contact piece 40 contacts the second contact 20 and the third contact 30, and FIG. 13B illustrates that the contact piece 40 contacts the second contact 20 and the contact piece 40 is FIG. 13C is a schematic diagram illustrating a state before the third contact 30 is contacted, and FIG. 13C is a schematic diagram illustrating a state where the contact piece 40 is in contact with the second contact 20 and the third contact 30.

[initial state]
Before the operating body 80 is pushed downward (second direction), the contact piece 40 is in contact with both the second contact 20 and the third contact 30, as shown in FIGS. Absent. As shown in FIG. 4, in the present embodiment, the first contact 10 is always in contact with the frame portion 52 of the contact piece 40, but this is not always necessary.

[First stage switch operation]
Next, when the operating body 80 is pushed downward (second direction), the operating force applied to the operating body 80 is transmitted to the movable member 70. When a predetermined amount of force is applied to the movable member 70, the dome-shaped portion 62 is buckled and deformed. In response to this buckling deformation of the dome-shaped portion 62, the central portion 46 of the contact piece 40 is pushed by the convex portion 62A, and the contact piece 40 moves so that the end portion 42 is lowered. That is, the inclination angle with respect to the one surface 102 of the contact piece 40 decreases, and the end portion 42 contacts the second contact 20 (see FIG. 13B). By this contact, the second contact 20 and the first contact 10 are electrically connected via the contact member 50, and the first-stage switch is turned on. At this time, a predetermined click feeling is obtained according to the buckling of the dome-shaped portion 62.

In addition, as shown in FIG. 13B, the base portion 46 is not in contact with the third contact 30 at the timing when the end portion 42 contacts the second contact 20 and the operation state with the corresponding operation force. A step surface 102A is provided on one surface 102 of the portion 100, the second contact 20 is exposed from the base material portion 100 in a peripheral region 102B of the step portion 102A, and the third contact 30 is formed by the step portion 102A. Exposed inside. That is, as shown in FIGS. 13A to 13C, the exposed surface 20A of the second contact 20 from the base material portion 100 is above (the first direction) above the exposed surface 30A of the third contact 30 from the base material portion 100. Located in.

[Second stage switch operation]
Thereafter, when a further pressing operation is performed on the operation body 80 from the state where the first-stage switch is turned on, the contact piece 40 is further pressed downward. At this time, the vicinity of the central portion 46 of the contact piece 40 changes so as to approach the third contact 30 (see FIG. 13C). In other words, the convex portion 62A of the movable member 70 shifts the vicinity of the central portion 46 of the contact piece 40 downwardly (to the third contact 30 side), and as a result, the central portion 46 and the third portion of the contact piece 40 are displaced. The exposed surface 30A of the contact 30 contacts. At this time, in addition to the second contact 20, the third contact 30 is also electrically connected to the first contact 10 through the contact member 50. That is, the state of the second-stage switch is switched. The force required for switching the state of the second-stage switch can be performed by a light touch operation, for example. That is, when the state of the second-stage switch is switched by a touch operation, the difference in position between the exposed surface 20A of the second contact 20 and the exposed surface 30A of the third contact 30 with respect to the vertical direction is provided with a step 102A. Can be realized.

As described above, in the push switch 1, the second-stage switch is switched from the off-state to the on-state or switched from the on-state to the off-state with or without a touch operation while the first-stage switch is on. be able to.

In addition, the level | step difference of the 2nd contact 20 and the 3rd contact 30 is suitably set so that the switch of a 2nd step can be switched by desired operation.

Further, by forming the peripheral region of the third contact 30 so as to be buried in the insulating resin portion (here, the base material portion 100), the convex portion 62A is easy when the state of the first-stage switch is switched. It becomes possible to stop. By performing an operation such as a further touch operation, the central portion 46 of the contact piece 40 can be shifted toward the third contact 30 via the convex portion 62A. As described above, it is more preferable that the third contact 30 is arranged so that the state of the second-stage switch can be easily switched.

In addition, as shown in FIG. 6, as for the contact piece 40 of this Embodiment, the center part 46 has an opening part. The contact piece 40 is not limited to this shape, and does not necessarily have an opening. Moreover, other shapes, such as providing a cut in the center, may be used.

[Return operation]
Next, the operation when the operating force on the operating body 80 is removed will be described.

When the pressing on the operating body 80 is stopped, the movable member 70 returns to the original shape, and the contact piece 40 also returns to the original shape (the state shown in FIG. 13A). Then, again, the first contact 10 to the third contact 30 return to a state where they are electrically independent from each other.

If the length and width of the contact piece 40 are set so as not to come into contact with the inner surface of the dome-shaped portion 62 during the operation and restoration described above, the influence on the operation feeling will be affected. Can be suppressed, and damage from the inside of the dome-shaped portion 62 can be suppressed.

As described above, in the push switch 1 of the present disclosure, the movable member 70 is made of rubber. For this reason, when the operation body 80 is pushed long (long stroke type operation), the first-stage switch is turned on together with the click feeling. After that, the second-stage switch can be turned on / off by performing a light operation on the operating body 80 like a touch operation while the first-stage switch is kept on. Therefore, it is possible to provide a push switch having the specifications as described above.

(Embodiment 2)
The push switch 1A according to the second embodiment will be described below with reference to the drawings.

7 is an external perspective view of the push switch 1A, FIG. 8A is an exploded perspective view of the push switch 1A, FIG. 9A is a cross-sectional view of the push switch 1A, FIG. 10 is a plan view of the base member 300, and FIG. FIG. 12A is a plan view of a state in which the contact member 250 and the movable member 270 are disposed on the base member 300. FIG.

As shown in FIGS. 7 and 8A, the push switch 1A has a substantially rectangular parallelepiped outer shape. The push switch 1A includes a base material part 300, a sheet member 310 coupled to the base material part 300 so as to cover a recess provided in the base material part 300, and a fixed contact part (first contact 210, second contact 220, second contact 3 contacts 230), a contact member 250, a movable member 270 integrally formed with a dome-shaped portion 262 and a leg portion 264, and a pressing body 280 disposed between the sheet member 310 and the dome-shaped portion 262. In the following description, as shown in FIG. 8A and the like, directions along the outer shape of the base member 300 are defined as a third direction 1001 and a fourth direction 1002, respectively.

The concave portion of the base material portion 300 has a substantially rectangular opening, and the fixed contact portions (first contact 210, second contact 220, third contact 230) are exposed from the bottom surface of the recess (necessary in English) If so, Tamano) It is placed on the base material part 300. That is, in the base material part 300, the bottom surface of the recess is the one surface 302. The concave portion is formed by a first wall portion 305 and a second wall portion 306 facing each other in the third direction 1001 with a surface 302 as a bottom portion, and a third wall portion 307 and a fourth wall portion 308 facing each other in the fourth direction 1002. ing. A contact member 250 is disposed in the recess. That is, the switch contact portion constituted by the fixed contact portion (the first contact 210, the second contact 220, the third contact 230) and the contact member 250 is disposed in the recess.

As shown in FIG. 10, the first contact 210, the second contact 220, and the third contact 230 are electrically independent from each other, and are disposed on the bottom of the base member 300 so as to be exposed from the one surface 302. . The two first contacts 210 are arranged at the corners of the recess. One of the two first contacts 210 is disposed at a position near the inner wall of the first wall portion 305 and the third wall portion 307 that are positioned substantially orthogonal to each other, and the other one of the two first contacts 210 is: The third wall portion 307 and the second wall portion 306 are disposed at positions near the inner wall of the third wall portion 307 and the second wall portion 306 that are located in a substantially orthogonal relationship.

The third contact 230 is disposed so as to be exposed from the vicinity of the center position of the one surface 302. One second contact 220 is disposed at a position near the inner wall of the first wall portion 305 and at a central position in the fourth direction 1002 in the recess. The height of the exposed surface 230A of the third contact 230 is lower than the height of the exposed surface 220A of the second contact 220. Specifically, the second contact 220 protrudes from the one surface 302. The third contact 230 is arranged at a position one step down from the resin surface of the one surface 302. That is, the peripheral position of the third contact 230 is embedded with an insulating resin forming one surface 302, and the third contact 230 is exposed on the inner bottom surface of the circular stepped portion 303 formed by being surrounded by the insulating resin portion. Yes.

As can be seen from the above description, as shown in FIG. 10, in the push switch 1 A, similarly to the push switch 1, the virtual surface connecting the exposed surface 210 A of the first contact 210 and the exposed surface 230 A of the third contact 230. The first contact 210, the second contact 220, the third contact so that a virtual straight line connecting the exposed surface 220A of the second contact 220 and the exposed surface 230A of the third contact 230 intersects the straight line. The contact 230 is disposed on the base material part 300. Similarly to the push switch 1 described above, the exposed surface 220A of the second contact 220 and the third surface of the third contact 230 are connected to an imaginary linear distance connecting the exposed surface 210A of the first contact 210 and the exposed surface 230A of the third contact 230. A virtual linear distance connecting the exposed surface 230A of the contact 230 is set to be a short dimension. In other words, the exposed surface 220A of the second contact 220 is disposed at a position inside the exposed surface 210A of the first contact 210, and the exposed surface of the third contact 230 is disposed at a position inside the exposed surface 220A of the second contact 220. 230A is arranged. In addition, although it is desirable to arrange | position the exposed surface 230A of the 3rd contact 230 in the center position of the recessed part of the base material part 300, it is not limited to this structure.

The contact member 250 is formed of a thin metal plate having elasticity, and has a contact piece 240 and a frame portion 252 that surrounds the contact piece 240. The frame portion 252 has a substantially rectangular ring shape that is unbroken in a plan view. The outer end shape of the frame portion 252 is a similar shape slightly smaller than the concave portion. The frame portion 252 has a first bar 252A to a fourth bar 252D located on the same surface. The adjacent bars of the first bar 252A to the fourth bar 252D are in a substantially orthogonal relationship.

As shown in FIG. 11, the contact member 250 is arranged such that the third crosspiece 252 C is in contact with the exposed surface 210 A from the base material part 300 of the two first contacts 210. The fourth beam 252D, which is positioned opposite to the third beam 252C in the fourth direction 1002 side, is placed on a stepped portion made of resin at the bottom of the recess of the base member 300. The first contact 210 and the step are provided at substantially the same height. In the arrangement (initial state) of the contact member 250, the contact member 250 is electrically insulated from the second contact 220 and the third contact 230. That is, the surface (lower surface) facing the one surface 302 of the contact piece 240 is opposed to the second contact 220 and the third contact 230 with a space therebetween. The direction in which the contact piece 240 faces the second contact 220 with a gap and the direction in which the contact piece 240 faces the third contact 230 with a gap are the up and down directions along the so-called operation direction. The outer ends of the first crosspiece 252A to the fourth crosspiece 252D of the frame part 252 are restricted by the inner walls of the corresponding first wall part 305 to fourth wall part 308. That is, the contact member 250 is maintained in a substantially horizontal state so as to be regulated to rotate while maintaining the horizontal state and to be regulated to move in the horizontal direction while maintaining the horizontal state. The frame portion 252 is disposed in the recess of the base material portion 300.

The contact piece 240 provided on the contact member 250 has a cantilever shape with a linearly extending outer shape. The contact piece 240 is integrally provided on the second bar 252B on the right side of the drawing in FIG. 8A. That is, the contact piece 240 is arranged along the third direction 1001 so that the root 244 is connected to the inner periphery of the second crosspiece 252B, and the end 242 on the distal end side. The position of the root 244 connected to the second crosspiece 252B is a substantially central position in the fourth direction 1002. 9A, a bent portion is formed in the vicinity of the root 244, and is inclined so that the end portion 242 on the distal end side is away from the one surface 302 in a side view. The contact piece 240 has a thick central portion 246 between the end 242 and the root 244 in plan view. The plan view shape of the central portion 246 is, for example, a substantially circular shape.

The movable member 270 has four leg portions 264 and a dome-shaped portion 262 formed integrally with the leg portions 264. That is, the movable member 270 has a region (concave portion 270A) surrounded by the dome-shaped portion 262 (→ there is no sign 270A in the drawing. Please add to the appropriate drawing). The dome-shaped portion 262 is formed with four holes 263 that penetrate the same shape at equal intervals.

In the present embodiment, the four holes 263 are formed in the movable member 270, but the number of the holes 263 is not necessarily limited, and the number of the holes 263 is not limited. FIG. 8B and FIG. 12B show an example in which three holes 263 are formed in the movable member 270. A cross-sectional view corresponding to the push switch shown in FIGS. 8B and 12B is shown in FIG. 9B.

Furthermore, as in the first embodiment (see FIG. 2), the hole 263 may not be formed in the dome-shaped portion 262 also in the present embodiment.

As shown in FIG. 12A, the movable member 270 is disposed on the base material portion 300 so that one of the four hole portions 263 overlaps the end portion 242. The movable member 270 is disposed so that the leg portion 264 is placed at the corner of the frame portion 252. The inner surface of the dome-shaped portion 262 is separated from the contact piece 240.

The sheet member 310 is coupled to the upper ends of the first wall portion 305 to the fourth wall portion 308 and covers the concave portion of the base material portion 300. The pressing body 280 is disposed between the sheet member 310 and the apex portion of the dome-shaped portion 262. The pressing body 280 is desirably held by the sheet member 310, but may be held by the dome-shaped portion 262. The pressing body 280 is arranged to transmit an operating force to the central portion of the dome-shaped portion 262. The pressing body 280 may be disposed on the outer surface of the sheet member 310. You may make it the structure which does not have the press body 280. FIG.

As described above, the push switch 1A according to the second embodiment is configured. Next, the operation of the push switch 1A will be described.

[First stage switch operation]
When the pressing body 280 is pushed downward via the sheet member 310, the operating force is transmitted from the pressing body 280 to the movable member 270. When a predetermined magnitude of force is applied to the movable member 270, the central portion of the dome-shaped portion 262 protruding upward is elastically deformed so as to protrude toward the one surface 302 side (downward). The central portion 246 of the contact piece 240 is pushed by the top surface of the dome-shaped portion 262 in accordance with the elastic deformation of the dome-shaped portion 262, and the contact piece 240 moves so that the end portion 242 is lowered to the one surface 302 side. . That is, the inclination angle of the contact piece 240 decreases and the end 242 contacts the second contact 220. As a result, the second contact 220 and the first contact 210 are electrically connected via the contact piece 240. That is, the state of the first-stage switch is switched to the on state while obtaining a click feeling.

[Second stage switch operation]
Thereafter, when a further pressing operation is performed on the pressing body 280 from the ON state of the first-stage switch, the contact piece 240 is further pressed downward. At this time, the vicinity of the central portion 246 of the contact piece 240 changes so as to approach the third contact 230. That is, by applying an operating force to the movable member 270, the inner surface of the dome-shaped portion 262 changes the vicinity of the center portion 246 of the contact piece 240 to a concave shape on the lower side (the third contact 230 side), and as a result, the contact piece 240 The center portion 246 and the third contact 230 come into contact with each other. At this time, the third contact 230 in addition to the second contact 220 is electrically connected to the first contact 210 via the movable member 270. That is, the state of the second-stage switch is switched. The force required for switching the state of the second-stage switch can be performed by, for example, a light touch operation like the push switch 1.

As described above, in the push switch 1A as well as the push switch 1 described above, the second-stage switch is switched from the off-state to the on-state with or without a touch operation while the first-stage switch remains on. Or can be switched from the on state to the off state.

Note that the contact piece 240 is disposed such that the end 242 overlaps one of the four holes 263 in a plan view. In this configuration, the end 242 can be prevented from engaging the movable member 270, and the push switch 1A can be easily reduced in thickness.

Similar to the push switch 1 described above, the length setting of the contact piece 240 may be set to a dimension that does not contact the dome-shaped portion 262 to suppress unnecessary engagement between the contact piece 240 and the movable member 270. . With this configuration, it is not necessary to form the hole 263. Further, an elastic body may be sandwiched between the top surface of the movable member 270 and the central portion 246 of the contact piece 240.

[Return operation]
Next, the operation when the operating force on the pressing body 280 is removed will be described.

When the pressing to the pressing body 280 is stopped, the movable member 270 and the like return to the original shape, and the contact piece 240 also returns to the original shape. Then, again, the first contact 210 to the third contact 230 return to an electrically independent state.

As described above, in the push switch 1A of the present disclosure, the first-stage switch is turned on together with the click feeling. Thereafter, the second-stage switch can be turned on / off by performing a light operation on the pressing body 280 like a touch operation while the first-stage switch is maintained in the on state. For example, a push switch having the specifications as described above can be provided.

In the two embodiments described above, the

contact pieces

40 and 240 have a cantilever shape, and the

contact pieces

40 and 240 and the

first contacts

10 and 210 are electrically connected in advance. Described as an example. The

contact pieces

40 and 240 are not limited to a cantilever shape. Further, the configuration for electrically connecting the

contact pieces

40 and 240 and the

first contacts

10 and 210 is not limited to the configuration described above. For example, the

contact pieces

40 and 240 may be configured to contact the

first contacts

10 and 210 and the

second contacts

20 and 220 in the first stage operation.

(Summary)
The above-described push switch 1 (1A) of the present disclosure includes the base material portion 100 (300) including the one surface 102 (302) and the base material portion 100 (300) so that a part is exposed from the one surface 102 (302). The first contact 10 (210) disposed, the second contact 20 (220) disposed on the base member 100 (300) such that a part of the first contact 102 (302) is exposed, and the one surface 102 (302). A third contact 30 (230) disposed on the base member 100 (300) so that a part thereof is exposed, and a first direction (upward) with respect to the one surface 102 (302), and one end portion The contact member 50 (250) having the contact piece 40 (240) in which the (base 44 (244)) is fixed and the other end (end 42 (242)) is movable, and the one surface 102 (302) Arranged in the first direction (upward) Includes 02 movable member 70 (270) having a recess 70A (270A) that open toward the (302), the. The contact piece 40 (240) of the contact member 50 (250) is disposed in a second direction (downward) that is opposite to the first direction with respect to the movable member 70 (270), and the movable member 70 (270) is disposed. When the contact piece 40 (240) is pressed in the second direction (downward) by the movable member 70 (270) when pressed in the second direction (downward), the contact member 50 (250) is moved to the second contact 20 (220). Is electrically connected to the first contact 10 (210), and the contact piece 40 (240) is further pressed in the second direction (downward) by the movable member 70 (270), the contact member 50 (250) is The third contact 30 (230) and the second contact 20 (220) are electrically connected to the first contact 10 (210).

In the push switch 1 (1A) of the present disclosure, the contact member 50 (250) further includes a frame portion 52 (152), and one end portion (the root 44 (244)) of the contact piece 40 (240) is The frame portion 52 (252) is fixed, the frame portion 52 (252) is in contact with the first contact 10 (210), and the other end portion (end portion 42 (242) of the contact piece 40 (240). )) Is disposed at a distance from the exposed surface 20A (220A) of the second contact 20 (220) from the base material portion 100 (300) in the first direction (upward), and the contact piece 40 (240). The central portion 46 (246) of the third contact point 30 (230) is preferably spaced from the exposed surface 30A (230A) of the third contact 30 (230) from the base material portion 100 (300) in the first direction (upward). .

In the push switch 1 (1A) of the present disclosure, the exposed surface 20A (220A) of the second contact 20 (220) from the base member 100 (300) is the base member 100 (300) of the third contact 30 (230). ) Is preferably located in the first direction (upward) from the exposed surface 30A (230A).

In the push switch 1 (1A) of the present disclosure, the one surface 102 (302) has a step portion 102A (303) that falls in the second direction (downward), and the first contact 10 (210) and the second contact 20 (220). Is exposed in the peripheral region of the step portion 102A (303), and the third contact 30 (230) is more preferably exposed in the step portion 102A (303).

In the push switch 1 (1A) of the present disclosure, the inner wall of the recess 70A (270A) of the movable member 70 (270) presses the central portion 46 (246) of the contact piece 40 (240) in the second direction, It is preferable that the central portion 46 (246) of the contact piece 40 (240) can be shifted so as to protrude toward the third contact 30 (230).

In the push switch 1 (1A) of the present disclosure, when viewed from the first direction (above), the center of the exposed surface 30A (230A) of the third contact 30 (230) from the base material portion 100 (300) and the first contact The first imaginary straight line connecting the center of the exposed surface 10A (210A) from the base material portion 100 (300) of 10 (210) and the exposed surface from the base material portion 100 (300) of the third contact 30 (230). The first contact 10 (210), so that the second imaginary straight line connecting the center of 30A (230A) and the center of the exposed surface from the base material part 100 (300) of the second contact 20 (220) intersects. It is more preferable that the second contact 20 (220) and the third contact 30 (230) are disposed on the base material portion 100 (300).

The push switch according to the present disclosure can be provided as a push switch in which the state of the first-stage switch is switched while the click feeling is obtained, and then the state of the second-stage switch can be switched. This is useful when composing parts.

DESCRIPTION OF SYMBOLS 1 Push switch 1A Push switch 10 1st contact 10A Exposed surface 20 2nd contact 20A Exposed surface 30 3rd contact 30A Exposed surface 40 Contact piece 42 End part 44 Base 46 Center part 50 Contact member 52 Frame part 54 Restriction part 56 Locking Piece 62 Dome-shaped part 62A Convex part 64 Projection part 70 Movable member 70A Concave part 80 Operating body 100 Base material part 102 One surface (first surface)
102A Stepped portion 102B Peripheral region 104 Engaging portion 110 Tubular member 210 First contact 210A Exposed surface 220 Second contact 220A Exposed surface 230 Third contact 230A Exposed surface 240 Contact piece 242 End 244 Root 246 Central portion 250 Contact member 252 Frame part 252A 1st crosspiece 252B 2nd crosspiece 252C 3rd crosspiece 252D 4th crosspiece 262 Dome-shaped part 263 Hole part 264 Leg part 270 Movable member 270A Recessed part 280 Pressing body 300 Base part 302 One surface (first surface)
303 Step part 305 1st wall part 306 2nd wall part 307 3rd wall part 308 4th wall part 310 Sheet member 1001 3rd direction 1002 4th direction

Claims

A base material portion including a first surface;
A first contact disposed on the base portion so as to be partially exposed from the first surface;
A second contact disposed on the base portion so that a part thereof is exposed from the first surface;
A third contact disposed on the base portion so as to be partially exposed from the first surface;
A contact member disposed in the first direction with respect to the first surface, having a contact piece on which one end is fixed and the other end is movable;
A movable member disposed in the first direction with respect to the first surface and having a recess opening toward the first surface;
With
The contact piece of the contact member is disposed in a second direction that is opposite to the first direction with respect to the movable member,
When the movable member is pressed in the second direction and the contact piece is pressed in the second direction by the movable member, the contact member electrically connects the second contact to the first contact;
When the contact piece is further pressed in the second direction by the movable member, the contact member electrically connects the third contact and the second contact to the first contact.
Push switch.
The contact member further includes a frame portion,
The one end portion of the contact piece is fixed to the frame portion,
The frame is in contact with the first contact;
The other end of the contact piece is disposed at a distance from the exposed surface of the second contact from the base material portion in the first direction,
The central part of the contact piece is arranged with an interval in the first direction from the exposed surface of the third contact point from the base material part,
The push switch according to claim 1.
The exposed surface from the base material portion of the second contact is located in the first direction from the exposed surface from the base material portion of the third contact,
The push switch according to claim 1.
The first surface has a stepped portion that falls in the second direction,
The first contact and the second contact are exposed in a peripheral region of the step portion,
The third contact is exposed in the stepped portion.
The push switch according to claim 1.
The inner wall of the concave portion of the movable member presses the central portion of the contact piece in the second direction so that the central portion of the contact piece protrudes toward the third contact point. is there,
The push switch according to claim 2.
A first imaginary straight line connecting the center of the exposed surface from the base material portion of the third contact and the center of the exposed surface from the base material portion of the first contact, as viewed from the first direction; The first contact, the first contact, and the second imaginary line connecting the center of the exposed surface from the base portion of the three contacts and the center of the exposed surface of the second contact from the base portion The second contact and the third contact are disposed on the base material portion.
The push switch according to claim 1.