WO2023026583A1

WO2023026583A1 - Push switch

Info

Publication number: WO2023026583A1
Application number: PCT/JP2022/017855
Authority: WO
Inventors: 健一森尾
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2021-08-27
Filing date: 2022-04-14
Publication date: 2023-03-02
Also published as: CN117581322A; JP2023032929A

Abstract

This push switch comprises: a case; a first metal member; a movable contact body; and a second metal member. The second metal member includes a body, a first end, a second end, a first intermediate part, a second intermediate part, a first connection part, a second connection part, a third connection part, and a fourth connection part. The upper surface of the first intermediate part is positioned below the upper surface of the first end and the upper surface of the body. The upper surface of the second intermediate part is positioned below the upper surface of the second end and the upper surface of the body. The first connection part, the second connection part, the third connection part, and the fourth connection part are covered and concealed by the case.

Description

push switch

TECHNICAL FIELD The present disclosure generally relates to push switches, and more particularly relates to push switches including resin cases.

The push switch described in Patent Document 1 includes a fixed contact portion and a movable contact portion. The movable contact portion is movable between a first position in contact with the contact surface of the fixed contact portion and a second position away from the contact surface. The stationary contact portion has grooves that divide the contact surface into a plurality of regions. A connection surface that connects the opening peripheral edge of the groove and the bottom of the groove includes an inclined portion that is inclined at an acute angle with respect to the contact surface.

WO2019/044725

However, in the push switch described in Patent Document 1, when the movable contact portion (movable contact body) moves to the first position in contact with the fixed contact portion, deformation of the movable contact portion causes deformation of the outer peripheral edge of the movable contact portion. but could unnecessarily come into contact with other configurations. As a result, a load is applied to the movable contact portion, which may cause deterioration or breakage of the movable contact portion.

An object of the present disclosure is to provide a push switch capable of reducing the load applied to the movable contact body.

A push switch according to one aspect of the present disclosure includes a case, a first metal member, a movable contact body, and a second metal member. The case has a concave portion with an upper opening. The case is made of resin. The first metal member is embedded in the case. The first metal member has a fixed contact portion exposed from the bottom surface of the recess. The movable contact body has a movable contact portion facing the fixed contact portion. The movable contact body is provided above the first metal member. The movable contact body has conductivity. The second metal member is embedded in the case. The case has a first pedestal and a second pedestal. The first pedestal portion and the second pedestal portion are each provided within the recess. The upper surface of the first pedestal portion and the upper surface of the second pedestal portion are located above the fixed contact portion and above the bottom surface of the recess. The second metal member includes a main body portion, a first end portion, a second end portion, a first intermediate portion positioned between the main body portion and the first end portion, and a main body portion and the first end portion. a second intermediate portion positioned between the two ends; a first connecting portion connecting the first end and the first intermediate portion; and a first connecting portion connecting the first intermediate portion and the main body. 2 connecting portions, a third connecting portion connecting the second end portion and the second intermediate portion, and a fourth connecting portion connecting the second intermediate portion and the body portion. The first end and the second end are provided on the first pedestal so as to be exposed on the upper surface of the first pedestal and contact the movable contact body. The body portion is provided on the second pedestal portion so as to be exposed on the upper surface of the second pedestal portion and to come into contact with the movable contact body. The movable contact body can be deformed into a shape that brings the movable contact portion into contact with the fixed contact portion and a shape that separates the movable contact portion from the fixed contact portion. The top surface of the first intermediate portion is located below the top surface of the first end portion and the top surface of the body portion. The upper surface of the second intermediate portion is located below the upper surface of the second end portion and the upper surface of the body portion. When viewed from above, the fixed contact portion is positioned between the first intermediate portion and the second intermediate portion. The first connecting portion, the second connecting portion, the third connecting portion, and the fourth connecting portion are hidden by the case.

The present disclosure has the advantage of being able to reduce the load on the movable contact body.

FIG. 1 is an exploded perspective view of a push switch according to one embodiment. FIG. 2 is a perspective view of the same push switch with the protective sheet, pressing body and movable contact body removed. FIG. 3 is a plan view of the same push switch with the protective sheet, pressing body and movable contact body removed. FIG. 4 is a plan view of the same push switch. FIG. 5 is a perspective view of the same push switch. FIG. 6 is a cross-sectional view corresponding to line VI-VI of FIG. 4, showing a non-operating state of the same push switch. FIG. 7 is a cross-sectional view corresponding to line VI-VI in FIG. 4, showing the operating state of the push switch of the same. FIG. 8 is a cross-sectional view of a main part of the same push switch. 9 is a cross-sectional view of a main part of a push switch according to Modification 1. FIG. FIG. 10 is a perspective view of the push switch according to Modification 2, with the protective sheet, the pressing body, and the movable contact body removed.

The push switch according to the embodiment will be described below with reference to the drawings. However, the embodiment described below is but one of the various embodiments of the present disclosure. The embodiments described below can be modified in various ways according to design and the like as long as the objects of the present disclosure can be achieved. Each drawing described in the following embodiments is a schematic drawing, and the ratio of the size and thickness of each component in the drawing does not necessarily reflect the actual dimensional ratio. .

Although the present disclosure will be described using directional terms such as “top,” “bottom,” “left,” “right,” “front,” “back,” etc., these terms indicate relative positional relationships. The present disclosure is not limited thereby. For example, when the push switch 1 of the present disclosure is rotated and installed, the direction of the push switch 1 in actual use may differ from the direction of the push switch 1 described in the present disclosure.

(overview)
As shown in FIGS. 1 and 2, the push switch 1 of this embodiment has a movable contact body 4 and a fixed contact portion 61 . When the predetermined portion (pressing portion 22) of the push switch 1 is not pressed, the movable contact body 4 is separated from the fixed contact portion 61 (see FIG. 6). By pressing the predetermined portion, the movable contact body 4 is deformed and comes into contact with the fixed contact portion 61 (see FIG. 7).

The push switch 1 is used for operation units of various devices such as personal digital assistants, in-vehicle devices, and home appliances. The push switch 1 is built in the housing of the device in a state of being mounted on a printed circuit board, for example. In this case, for example, an operation button is arranged at a position corresponding to the push switch 1 on the housing. When the user presses the operation button, the above predetermined portion of the push switch 1 is pressed via the operation button.

As shown in FIGS. 1 and 2, the push switch 1 of this embodiment includes a case 5, a first metal member 6, a movable contact body 4, and a second metal member 7. The case 5 has a concave portion 50 with an upper opening. The case 5 is made of resin. The first metal member 6 is embedded in the case 5 . The first metal member 6 has a fixed contact portion 61 exposed from the bottom surface 500 of the recess 50 . The movable contact body 4 has a movable contact portion 400 facing the fixed contact portion 61 . The movable contact body 4 is provided above the first metal member 6 . The movable contact body 4 has conductivity. The second metal member 7 is embedded in the case 5 . The case 5 has a first pedestal portion 51 and a second pedestal portion 52 . The first pedestal portion 51 and the second pedestal portion 52 are each provided within the recessed portion 50 . The upper surface 510 of the first pedestal portion 51 and the upper surface 520 of the second pedestal portion 52 are located above the fixed contact portion 61 and above the bottom surface 500 of the recess 50 . The second metal member 7 includes a body portion 70, a first end portion 71, a second end portion 71s, a first intermediate portion 73 positioned between the body portion 70 and the first end portion 71, and a body portion a second intermediate portion 73s positioned between 70 and the second end portion 71s; a first connecting portion 72 that connects the first end portion 71 and the first intermediate portion 73; the first intermediate portion 73; 70, a third connecting portion 72s connecting the second end portion 71s and the second intermediate portion 73s, and a fourth connecting portion connecting the second intermediate portion 73s and the main body portion 70. and a portion 74s. The first end portion 71 and the second end portion 71 s are provided on the first seat portion 51 so as to be exposed on the upper surface 510 of the first seat portion 51 and come into contact with the movable contact body 4 . The body portion 70 is provided on the second seat portion 52 so as to be exposed on the upper surface 520 of the second seat portion 52 and come into contact with the movable contact body 4 . The movable contact body 4 can be deformed into a shape that brings the movable contact portion 400 into contact with the fixed contact portion 61 and a shape that separates the movable contact portion 400 from the fixed contact portion 61 . The upper surface 730 of the first intermediate portion 73 is located below the upper surface 710 of the first end portion 71 and the upper surface 700 of the main body portion 70 . The upper surface 730s of the second intermediate portion 73s is located below the upper surface 710s of the second end portion 71s and the upper surface 700 of the main body portion . When viewed from above, the fixed contact portion 61 is positioned between the first intermediate portion 73 and the second intermediate portion 73s. The first connecting portion 72 , the second connecting portion 74 , the third connecting portion 72 s and the fourth connecting portion 74 s are hidden by the case 5 .

According to the present embodiment, the upper surface 730 of the first intermediate portion 73 is located below the upper surface 710 of the first end portion 71 and the upper surface 700 of the main body portion 70, and the upper surface 730s of the second intermediate portion 73s is located at the second end portion. 71 s and the upper surface 700 of the main body 70 . That is, the upper surface 730 of the first intermediate portion 73 and the upper surface 730s of the second intermediate portion 73s are positioned relatively downward. Therefore, when the movable contact body 4 changes into a shape (hereinafter referred to as an “operating shape”) in which the movable contact portion 400 is brought into contact with the fixed contact portion 61, the movable contact body 4 is moved to the upper surface 730 of the first intermediate portion 73 and the second contact portion 730. The possibility of contact with the upper surface 730s of the second intermediate portion 73s can be reduced. Thereby, the load (stress) applied to the movable contact body 4 can be reduced.

Further, the upper surface 510 of the first pedestal portion 51 provided with the first end portion 71 and the upper surface 520 of the second pedestal portion 52 provided with the second end portion 71 s located above. Therefore, when at least one of the upper surface 730 of the first intermediate portion 73 and the upper surface 730s of the second intermediate portion 73s is covered with a portion of the case 5 that constitutes a portion of the bottom surface 500, the shape of the operation is changed. It is possible to reduce the possibility of the movable contact body 4 coming into contact with the part. Therefore, in this case as well, the load (stress) applied to the movable contact body 4 can be reduced.

(detail)
(1) Overall Configuration As shown in FIG. 1, the push switch 1 includes a case 5, a first metal member 6, a movable contact body 4, a second metal member 7, a protective sheet 2, A pressing body 3 is further provided. The case 5, the first metal member 6, and the second metal member 7 are integrally molded (insert-molded). A push switch 1 is constructed by combining a case 5 with a movable contact member 4, a protective sheet 2, and a pressing member 3. As shown in FIG.

In the present disclosure, the side on which the fixed contact portion 61 is provided when viewed from the movable contact portion 400 is defined as bottom, and the side on which the movable contact portion 400 is provided when viewed from the fixed contact portion 61 is defined as top. Further, the side on which the second intermediate portion 73s is provided as viewed from the first intermediate portion 73 is defined as the front, and the side on which the first intermediate portion 73 is provided as viewed from the second intermediate portion 73s is defined as the rear. Also, the side on which the second pedestal portion 52 is provided as viewed from the first pedestal portion 51 is defined as the left side, and the side on which the first pedestal portion 51 is provided as viewed from the second pedestal portion 52 is defined as the right side. However, these regulations are not meant to limit the directions in which the push switch 1 is used. For example, the push switch 1 may be used in an orientation where "up" as used in the present disclosure is down, forward, backward, left or right.

(2) Case The material of the case 5 is synthetic resin. As shown in FIGS. 1 to 3, the case 5 has a first pedestal portion 51, a second pedestal portion 52, a case main body 53, and a peripheral wall portion .

Regarding each structure of the case 5, the "upper surface" is limited to the surface exposed upward when the case 5 is combined with the first metal member 6 and the second metal member 7 (by integral molding). 5, the surface covered with the first metal member 6 or the second metal member 7 is not included.

The shape of the case main body 53 is rectangular parallelepiped. The vertical length (thickness) of the case main body 53 is smaller than the lengths in the front-rear and left-right directions.

The peripheral wall portion 54 protrudes upward from the case body 53 . When viewed from above, the peripheral wall portion 54 has an oval shape. The case 5 has a recessed portion 50 recessed downward from the upper surface of the peripheral wall portion 54 . A bottom surface 500 of the recess 50 is located below an upper surface 530 of the case body 53 . The fixed contact portion 61 is exposed from the bottom surface 500 of the recess 50 . The bottom surface 500 is planar.

The first pedestal part 51 and the second pedestal part 52 are provided inside the recessed part 50 . Here, the bottom surface 500 of the concave portion 50 does not include the surface of the first pedestal portion 51 (upper surface 510, etc.) and the surface of the second pedestal portion 52 (upper surface 520, etc.). That is, the first pedestal portion 51 and the second pedestal portion 52 protrude upward from the bottom surface 500 of the recess 50 . The projection amounts of the first pedestal portion 51 and the second pedestal portion 52 with respect to the bottom surface 500 are equal to each other. Further, the bottom surface 500 of the recess 50 is limited to the surface exposed upward when the case 5 is combined with the first metal member 6 and the second metal member 7 (by integral molding). The surface covered by 6 or the second metal member 7 is not included. On the other hand, the bottom surface 500 of the recessed portion 50 includes the upper surface of the portion covering the first metal member 6 or the second metal member 7 other than the first pedestal portion 51 and the second pedestal portion 52 .

The upper surface 510 of the first pedestal portion 51 and the upper surface 520 of the second pedestal portion 52 are positioned below the upper surface 540 of the peripheral wall portion 54 . Further, the upper surface 510 of the first pedestal portion 51 and the upper surface 520 of the second pedestal portion 52 are located above the upper surface 610 of the fixed contact portion 61 and the bottom surface 500 of the recess 50 . The top surfaces 510, 520 are level with each other. In other words, the

upper surfaces

510 and 520 are at the same position in the vertical direction. Each of the

upper surfaces

510, 520 is planar. The upper surface 510 includes at least a region between the first end 71 and the second end 71s.

The first pedestal portion 51 is provided at the right end of the recessed portion 50 . The second pedestal portion 52 is provided at the left end of the recessed portion 50 . Also, the first pedestal portion 51 is provided on the right side of the fixed contact portion 61 . The second pedestal portion 52 is provided to the left of the fixed contact portion 61 .

When viewed from above, the shape of each of the first pedestal portion 51 and the second pedestal portion 52 is arcuate. When viewed from above, each of the first pedestal portion 51 and the second pedestal portion 52 is formed in a shape along the side surface of the recessed portion 50 . In each of the first pedestal portion 51 and the second pedestal portion 52, the length in the front-rear direction is longer than the length in the left-right direction.

The front end and the rear end of the first pedestal 51 protrude to the left more than other parts of the first pedestal 51 . The left side surface of the central portion of the first pedestal portion 51 in the front-rear direction is recessed to the right from other portions of the first pedestal portion 51 .

The front end and the rear end of the second pedestal 52 protrude to the right more than other parts of the second pedestal 52 . The right side surface of the central portion of the second pedestal portion 52 in the front-rear direction is recessed leftward from the other portions of the second pedestal portion 52 .

(3) First Metal Member The material of the first metal member 6 is, for example, copper or copper alloy. Also, the first metal member 6 may be formed by providing a conductive layer containing silver (Ag) plating or the like on the surface of a base material such as copper or a copper alloy. As shown in FIGS. 1 to 3, the first metal member 6 has a fixed contact portion 61, a surrounding portion 62, an extension portion 63, a terminal 64, and a terminal 65. As shown in FIGS.

Regarding each structure of the first metal member 6, the "upper surface" is limited to the surface exposed upward when the case 5 is combined with the first metal member 6 (by integral molding). 6, the surface covered by part of the case 5 is not included.

The fixed contact portion 61 is exposed on the bottom surface 500 of the recess 50 . When viewed from above, the fixed contact portion 61 has a circular shape. A cross-shaped groove is formed in the upper surface 610 of the fixed contact portion 61 . Note that the upper surface 610 of the fixed contact portion 61 does not include the bottom surface of the groove.

The upper surface 610 of the fixed contact portion 61 is positioned above the bottom surface 500 of the recess 50 . Further, the upper surface 610 is positioned below the upper surface 510 of the first pedestal portion 51 and the upper surface 520 of the second pedestal portion 52 .

When viewed from above, the shape of the surrounding portion 62 is annular. The surrounding portion 62 is connected to the fixed contact portion 61 . The surrounding portion 62 is provided so as to surround the fixed contact portion 61 when viewed from above. The upper surface 620 of the enclosing portion 62 is positioned below the upper surface 610 of the fixed contact portion 61 . The top surface 620 of the surrounding portion 62 is flush with the bottom surface 500 of the recess 50 . The upper surface 620 is planar.

The extension portion 63 extends rightward from the surrounding portion 62 . A portion of the extension portion 63 is embedded below the first pedestal portion 51 and is covered with the first pedestal portion 51 . The extension 63 is connected to

terminals

64 and 65 .

The

terminals

64 and 65 are provided at the right end of the case 5 . When viewed from above, the

terminals

64 and 65 protrude outside the case 5 . Also, the

terminals

64 and 65 are exposed on the lower surface of the case 5 .

(4) Second Metal Member The material of the second metal member 7 is, for example, copper or copper alloy. The second metal member 7 may be formed by providing a conductive layer containing silver (Ag) plating or the like on the surface of a base material such as copper or copper alloy. As shown in FIGS. 1 to 3, the second metal member 7 includes a body portion 70, a first end portion 71, a second end portion 71s, a first connecting portion 72, a second connecting portion 74, It has a first intermediate portion 73, a second intermediate portion 73s, a third connecting portion 72s, a fourth connecting portion 74s, a terminal 75, and a terminal 75s.

Regarding each configuration of the second metal member 7, the "upper surface" is limited to the surface exposed upward when the case 5 is combined with the second metal member 7 (by integral molding). 7, the surface covered by part of the case 5 is not included.

The body portion 70 is exposed on the upper surface 520 of the second pedestal portion 52 . An upper surface 700 of the body portion 70 is planar. The upper surface 700 of the body portion 70 is flush with the upper surface 520 of the second pedestal portion 52 . The body portion 70 has a length in the front-rear direction that is longer than a length in the left-right direction. A portion of the body portion 70 is embedded below the peripheral wall portion 54 of the case 5 and is hidden by the peripheral wall portion 54 .

The first end portion 71 and the second end portion 71 s are exposed on the upper surface 510 of the first pedestal portion 51 . An upper surface 710 of the first end portion 71 and an upper surface 710s of the second end portion 71s are each planar. The upper surface 710 of the first end portion 71, the upper surface 710s of the second end portion 71s, and the upper surface 510 of the first pedestal portion 51 are flush with each other. The first end portion 71 and the second end portion 71 s are shorter in the front-rear direction than the main body portion 70 . The first end portion 71 is positioned rearward of the center of the first pedestal portion 51 in the front-rear direction. The second end portion 71s is positioned forward of the center of the first pedestal portion 51 in the front-rear direction. A portion of the first end portion 71 and a portion of the second end portion 71 s are embedded below the peripheral wall portion 54 of the case 5 and are covered with the peripheral wall portion 54 .

At least a portion of the first intermediate portion 73 and at least a portion of the second intermediate portion 73 s are exposed on the bottom surface 500 of the recess 50 . An upper surface 730 of the first intermediate portion 73 and an upper surface 730s of the second intermediate portion 73s are each planar. The top surface 730 of the first intermediate portion 73, the top surface 730s of the second intermediate portion 73s, and the bottom surface 500 of the recess 50 are flush with each other. That is, the upper surface 730 of the first intermediate portion 73 and the upper surface 730s of the second intermediate portion 73s are lower than the upper surface 730 of the first end portion 71, the upper surface 710s of the second end portion 71s, and the upper surface 700 of the main body portion 70. located in The first intermediate portion 73 and the second intermediate portion 73s are longer in the left-right direction than in the front-rear direction. The first intermediate portion 73 is positioned behind the fixed contact portion 61 . The second intermediate portion 73 s is located in front of the fixed contact portion 61 . A portion of the first intermediate portion 73 and a portion of the second intermediate portion 73 s are embedded below the peripheral wall portion 54 of the case 5 and are covered with the peripheral wall portion 54 .

FIG. 8 shows a cross section of a portion of the push switch 1 including the first connecting portion 72. As shown in FIG. Thus, the first connecting portion 72 connects the first end portion 71 and the first intermediate portion 73 . More specifically, the upper surface 710 of the first end portion 71 is located above the upper surface 730 of the first intermediate portion 73, and the first connecting portion 72 is vertically extended so as to fill the gap between the two upper surfaces. has a length of The second metal member 7 is manufactured by punching, bending, etc., using a single sheet metal as a material. In the manufacturing process, by bending two portions between the first end portion 71 and the first intermediate portion 73, the vertical positions of the upper surface 710 of the first end portion 71 and the upper surface 730 of the first intermediate portion 73 are adjusted. A difference is made. The first connecting portion 72 corresponds to a portion between the two bent portions between the first end portion 71 and the first intermediate portion 73 . The second connecting portion 74, the third connecting portion 72s, and the fourth connecting portion 74s also have the same shape as the first connecting portion 72, and are manufactured by the same process.

As shown in FIG. 1 , the second connecting portion 74 connects the first intermediate portion 73 and the main body portion 70 . More specifically, the upper surface 700 of the main body portion 70 is positioned above the upper surface 730 of the first intermediate portion 73, and the second connecting portion 74 is elongated in the vertical direction so as to fill the gap between the two upper surfaces. It has a

The third connecting portion 72s connects the second end portion 71s and the second intermediate portion 73s. More specifically, the upper surface 710s of the second end portion 71s is located above the upper surface 730s of the second intermediate portion 73s, and the third connecting portion 72s extends vertically so as to fill the gap between the two upper surfaces. has a length of

The fourth connecting portion 74s connects the second intermediate portion 73s and the main body portion 70 . More specifically, the upper surface 700 of the main body portion 70 is located above the upper surface 730s of the second intermediate portion 73s, and the fourth connecting portion 74s is elongated in the vertical direction so as to fill the gap between the two upper surfaces. It has a

Also, the first connecting portion 72, the second connecting portion 74, the third connecting portion 72s, and the fourth connecting portion 74s are hidden by the case 5. At least the first connecting portion 72, the second connecting portion 74, the third connecting portion 72s, and the fourth connecting portion 74s may be embedded in the case 5 so as not to be exposed when viewed from above. In this embodiment, the first connecting portion 72, the second connecting portion 74, the third connecting portion 72s, and the fourth connecting portion 74s are embedded in the case 5 so as not to be exposed in any direction. The first connecting portion 72 and the third connecting portion 72s are covered by a portion of the first base portion 51, and the second connecting portion 74 and the fourth connecting portion 74s are covered by a portion of the second base portion 52. Covered up.

The

terminals

75 and 75s are connected to the body portion 70 . The

terminals

75 and 75 s are provided at the left end of the case 5 . When viewed from above, the

terminals

75 and 75s protrude outside the case 5 . Also, the

terminals

75 and 75 s are exposed on the lower surface of the case 5 .

The

terminals

75, 75s, and the

terminals

64, 65 of the first metal member 6 are mechanically coupled and electrically connected, for example, by soldering to a conductive member on the printed circuit board.

(5) Movable contact body As shown in FIGS. 1 and 6 , the movable contact body 4 has three leaf springs 40 . Each leaf spring 40 has elasticity. The leaf spring 40 is made of, for example, a metal plate such as stainless steel (SUS). The movable contact body 4 is constructed by stacking three leaf springs 40 having substantially the same shape. The lowermost plate spring 40 includes a portion facing the fixed contact portion 61 on its lower surface. This portion corresponds to the movable contact portion 400 .

The movable contact body 4 has conductivity. More specifically, a conductive film having electrical conductivity is formed on the lower surface of the lowermost leaf spring 40 by, for example, gold plating or silver plating.

The number of leaf springs 40 is not limited to three, and may be one, two, or four or more.

The movable contact body 4 is arranged inside the recess 50 . The movable contact body 4 is provided above the first metal member 6 . When viewed from above, the shape of the movable contact body 4 is oval. The length of the movable contact body 4 in the left-right direction is longer than the length in the front-rear direction. The movable contact body 4 is formed in a shape along the side surface of the recess 50 .

The right end portion of the movable contact body 4 faces the upper surface 510 of the first pedestal portion 51 . The right end portion of the movable contact body 4 is in contact with the upper surface 710 of the first end portion 71 and the upper surface 710s of the second end portion 71s. Thereby, the first end portion 71 and the second end portion 71 s are electrically connected to the movable contact body 4 . Further, the right end portion of the movable contact body 4 is thereby supported.

The left end portion of the movable contact body 4 faces the upper surface 520 of the second pedestal portion 52 . The left end portion of the movable contact body 4 is in contact with the upper surface 700 of the body portion 70 . Thereby, the body portion 70 is electrically connected to the movable contact body 4 . Further, the left end portion of the movable contact body 4 is thereby supported. The body portion 70 supports the movable contact body 4 at, for example, two points symmetrical to the first end portion 71 and the second end portion 71s with respect to a line segment that bisects the case 5 to the left and right.

As shown in FIGS. 1 and 3, a first position P1 in contact with the first end portion 71 of the movable contact body 4 and a second position P2 in contact with the second end portion 71s of the movable contact body 4 are separated. The distance L1 between them is shorter than the distance L2 between the third position P3 and the second position P2. The third position P3 is a position of the movable contact body 4 that contacts the body portion 70 . Here, the distance L2 is the distance measured in the direction (horizontal direction) orthogonal to the line segment corresponding to the distance L1. Further, there are a third position P3 and a fourth position P4 at which the movable contact body 4 contacts the body portion 70, and a distance L2 between the third position P3 and the second position P2 is 4 shorter than the distance between the position P4 and the second position P2.

When the movable contact body 4 is pushed from above, the movable contact body 4 deforms around the first position P1, the second position P2, and the third position P3 and the fourth position P4. Here, since the distance L2 between the second position P2 and the third position P3 is relatively long, the amount of deformation of the movable contact body 4 is relatively large. Therefore, the amount of movement of the movable contact portion 400 becomes relatively large.

When the push switch 1 is not operated, the movable contact body 4 has a dome shape so that the central portion facing the fixed contact portion 61 becomes the apex (see FIG. 6). A portion of the movable contact body 4 that is farther from the central portion is positioned downward. In this manner, the movable contact body 4 is formed in a dome shape that is convex upward. When the movable contact body 4 is pushed from above, the central portion of the movable contact body 4 becomes dome-shaped and protrudes downward (see FIG. 7). That is, the movable contact body 4 can be deformed into a shape in which the movable contact portion 400 is brought into contact with the fixed contact portion 61 (see FIG. 7) and a shape in which the movable contact portion 400 is separated from the fixed contact portion 61 (see FIG. 6). be.

The rear end portion of the movable contact body 4 faces the upper surface 730 of the first intermediate portion 73 . A front end portion of the movable contact body 4 faces an upper surface 730s of the second intermediate portion 73s.

(6) Protective Sheet and Pressing Body As shown in FIGS. The protective sheet 2 is a flexible synthetic resin sheet. The protective sheet 2 is joined to the peripheral wall portion 54 of the case 5 at the joining portion 21 . The protective sheet 2 covers the entire recess 50 . Thereby, the protective sheet 2 keeps the inside of the concave portion 50 in an airtight state.

The joint portion 21 corresponds to the peripheral portion of the protective sheet 2 . The pressing portion 22 is a portion that corresponds to the central portion of the protective sheet 2 and has a circular shape when viewed from above. The intermediate portion 23 is a portion between the pressing portion 22 and the joint portion 21 . The pressing portion 22 protrudes upward with respect to the intermediate portion 23 .

The pressing body 3 is arranged between the pressing part 22 of the protective sheet 2 and the movable contact body 4 . The pressing body 3 is made of synthetic resin and has electrical insulation. The pressing body 3 has a disc shape that is flattened in the vertical direction. The pressing body 3 is arranged above the movable contact body 4 with the lower surface of the pressing body 3 in contact with the movable contact body 4 . The upper surface of the pressing body 3 is joined to the pressing portion 22 of the protective sheet 2 by laser welding, for example.

The pressing body 3 transmits the operating force applied to the pressing portion 22 of the protective sheet 2 to the movable contact body 4 . The operating force is specifically a force pushing from above. When an operating force acts on the pressing portion 22 from above, this operating force is transmitted to the movable contact body 4 via the pressing body 3 . Therefore, when the pressing portion 22 is pressed, the movable contact member 4 is indirectly operated through the pressing member 3 and deformed as shown in FIG. The outer shape of the pressing body 3 is not limited to a disc shape, and may be, for example, a funnel shape.

The pressing body 3 is arranged above the movable contact body 4 . Here, the dimensions of the pressing body 3 may be set so that the entire pressing body 3 overlaps the fixed contact portion 61 when viewed from above. For example, the shape of the pressing body 3 viewed from above may be a circular shape indicated by a dashed dotted line D1 in FIG. According to this configuration, when the movable contact body 4 receives the operating force from the pressing body 3 and comes into contact with the fixed contact portion 61, the movable contact body 4 is excessively large at the portion outside the fixed contact portion 61 as viewed from above. It is possible to reduce the possibility of applying unnecessary shear stress.

When viewed from above, the entirety of the pressing body 3 overlaps the fixed contact portion 61 includes the case where the outer edge of the pressing body 3 coincides with the outer edge of the fixed contact portion 61 .

(7) Operation of Push Switch The movable contact portion 400 and the fixed contact portion 61 constitute a contact portion. When the operating force acts on the movable contact body 4 and deforms the movable contact body 4, the contact portion is switched from off to on. Specifically, when no operating force is applied to the movable contact body 4, the movable contact portion 400 is separated from the fixed contact portion 61, so the contact portion is off. At this time, since the first metal member 6 and the second metal member 7 are electrically insulated, the pair of

terminals

64, 65 and the pair of

terminals

75, 75s are not electrically connected. On the other hand, when the operating force acts on the movable contact body 4 and the movable contact portion 400 contacts the fixed contact portion 61, the contact portion is turned on. At this time, since the first metal member 6 and the second metal member 7 are electrically connected via the movable contact body 4, the pair of

terminals

64, 65 and the pair of

terminals

75, 75s are electrically connected. .

Further, when the magnitude of the operating force acting on the movable contact body 4 exceeds a predetermined value in the process of switching the contact portion from off to on, the movable contact body 4 is vigorously buckled and deformed. At this time, the elastic force of the movable contact body 4 changes abruptly. By such a so-called reversal operation of the movable contact body 4, the movable contact body 4 is deformed into a curved dome shape with a downwardly convex central portion as shown in FIG. Therefore, the user (operator) who presses the push switch 1 is given a click feeling as the movable contact member 4 deforms.

On the other hand, when the operating force acting on the movable contact body 4 is removed in a state where the movable contact body 4 is deformed into a dome shape or the like that protrudes downward, the movable contact body 4 moves toward the central portion due to the restoring force of the movable contact body 4 . is restored (deformed) into a curved dome shape (see FIG. 6). At this time, the elastic force of the movable contact body 4 changes abruptly, so that the movable contact body 4 vigorously restores (deforms) to its original shape (a dome shape with an upwardly convex central portion). Therefore, the user (operator) who presses the push switch 1 is given a click feeling as the movable contact body 4 deforms even when the pressing operation is released.

(8) Advantages When an operating force acts on the movable contact body 4 and the movable contact body 4 is deformed into a downward convex dome shape, the lower surface of the movable contact body 4 moves downward. We are anxious about the 1st

intermediate part

73 and 73 s of 2nd intermediate parts of the member 7 contacting. However, in the push switch 1 of this embodiment, such concern is less than in the conventional push switch. This will be explained in detail below.

In the conventional push switch, the structure corresponding to the first intermediate portion 73 and the second intermediate portion 73s is at the same vertical position (height) as the structure corresponding to the first end portion 71 and the second end portion 71s. ). When the amount of deformation of the movable contact body 4 is large, there is a concern that the movable contact body 4 may come into contact with a structure corresponding to at least one of the first intermediate portion 73 and the second intermediate portion 73s. Due to the contact between them, a load is applied to the movable contact body 4, and there is a possibility that the life of the movable contact body 4 is shortened. In addition, the structure corresponding to at least one of the first intermediate portion 73 and the second intermediate portion 73s of the second metal member 7 is scraped (that is, worn) by contact with the movable contact body 4, and the second metal member 7 shavings could occur. The "shaving powder" referred to here is a powder-like material generated by shaving a part of a member such as the second metal member 7 . However, the shaving dust is not limited to metal members such as the second metal member 7, and for example, a powdery material generated by shaving a part of the synthetic resin case 5 is also called shaving dust. If scraping dust adheres to the fixed contact portion 61 and intervenes between the stationary contact portion 61 and the movable contact portion 400, the movement of the movable contact body 4 may be hindered by the scraping dust, or the fixed contact portion 61 and the movable contact portion may be interfered with. 400 may cause poor continuity.

In contrast, in the push switch 1 of the present embodiment, the upper surface 730 of the first intermediate portion 73 is located below the upper surface 710 of the first end portion 71 and the upper surface 700 of the main body portion 70, and the upper surface 730 of the second intermediate portion 73s The upper surface 730 s is located below the upper surface 710 s of the second end portion 71 s and the upper surface 700 of the body portion 70 . Therefore, when the movable contact body 4 changes its shape to bring the movable contact portion 400 into contact with the fixed contact portion 61, the movable contact body 4 contacts the upper surface 730 of the first intermediate portion 73 and the upper surface 730s of the second intermediate portion 73s. can reduce the possibility. Therefore, it is possible to prevent the life of the push switch 1 from being shortened and to reduce the possibility of the push switch 1 becoming defective. Further, even if the stroke of the push switch 1 is relatively long, the contact of the movable contact body 4 with the upper surface 730 of the first intermediate portion 73 and the upper surface 730s of the second intermediate portion 73s can be suppressed. can be done. The stroke of the push switch 1 is when the movable contact portion 400 moves from the state of being separated from the fixed contact portion 61 to the state of contact, or when the movable contact portion 400 moves from the state of contacting the fixed contact portion 61 to the state of being separated. This is the amount of movement of the pressing body 3 at that time.

Further, in the push switch 1 of the present embodiment, the movable contact body 4 is supported by the first end portion 71 and the second end portion 71s of the second metal member 7 and the body portion 70 . Therefore, compared with the case where only the first pedestal portion 51 and the second pedestal portion 52 of the resin-made case 5 are supported, scraping dust is less likely to occur. That is, the second metal member 7 made of metal, which is harder than resin, is less likely to be scraped to generate scraping powder than the case 5 made of resin. Therefore, it is possible to reduce defects caused by scraping dust.

(Modification 1)
A push switch 1A according to Modification 1 will be described below with reference to FIG. The same reference numerals are assigned to the same configurations as in the above-described embodiment, and the description thereof is omitted.

In Modification 1, the case 5 further has a covering portion 55 (hereinafter also referred to as "first covering portion"). The covering portion 55 covers the first intermediate portion 73 from above. That is, the upper surface 730 of the first intermediate portion 73 is not exposed from the bottom surface 500 of the recess 50 .

In addition, the case 5 may further have another covering portion 55 (hereinafter referred to as "second covering portion"). The second covering portion covers the second intermediate portion 73s (see FIG. 1) from above. That is, the upper surface 730 s of the second intermediate portion 73 s is not exposed from the bottom surface 500 of the recess 50 .

Here, the bottom surface 500 of the recess 50 includes the top surface of the first covering portion and the top surface of the second covering portion. The top surface of the first covering portion and the top surface of the second covering portion are preferably flush with other areas of the bottom surface 500 . That is, as compared with the embodiment, in Modification 1, the bottom surface 500 of the recess 50 extends above the first intermediate portion 73 and the second intermediate portion 73s.

As described above, in Modification 1, the first intermediate portion 73 of the second metal member 7 and the second intermediate portion 73 s of the second metal member 7 are covered with the case 5 . It is sufficient that the first intermediate portion 73 and the second intermediate portion 73s are at least embedded in the case 5 so as not to be exposed when viewed from above. In Modification 1, the first intermediate portion 73 and the second intermediate portion 73s are embedded in the case 5 so as not to be exposed in any direction.

Furthermore, as in the embodiment, the upper surface 510 of the first pedestal portion 51 provided with the first end portion 71 and the upper surface 520 of the second pedestal portion 52 provided with the second end portion 71s It is positioned above the bottom surface 500 of the recess 50 . That is, the upper surface 710 of the first end portion 71 and the upper surface 710s of the second end portion 71s are located above the upper surface of the first covering portion and the upper surface of the second covering portion. Therefore, even if the movable contact body 4 is deformed by the operation force, the movable contact body 4 can contact the bottom surface 500 of the recess 50 (the upper surface of the first covering portion and the upper surface of the second covering portion). can be reduced. Thereby, the load applied to the movable contact body 4 can be reduced.

(Modification 2)
A push switch 1B according to Modification 2 will be described below with reference to FIG. The same reference numerals are assigned to the same configurations as in the above-described embodiment, and the description thereof is omitted. Moreover, the second modification may be implemented in combination with the first modification.

In Modified Example 2, the first end portion 71 includes a protruding portion 712 , and the protruding portion 712 protrudes above the upper surface 510 of the first pedestal portion 51 . The second end portion 71 s includes a protruding portion 712 s that protrudes above the upper surface 510 of the first pedestal portion 51 . The movable contact body 4 (see FIG. 1) is in contact with the projecting portion 712 of the first end portion 71 and the projecting portion 712s of the second end portion 71s. The configuration of the push switch 1B will be described in more detail below.

The first end 71 further includes a base 711 in addition to the protrusion 712 . The upper surface of the base 711 is flush with the upper surface 510 of the first pedestal portion 51 . The protrusion 712 protrudes upward from the base 711 . The upper surface of the projecting portion 712 is located below the upper surface 540 of the peripheral wall portion 54 .

The second end 71s further includes a base 711s in addition to the protrusion 712s. The upper surface of the base 711 s is flush with the upper surface 510 of the first pedestal portion 51 . The protrusion 712s protrudes upward from the base 711s. The upper surface of the projecting portion 712 s is located below the upper surface 540 of the peripheral wall portion 54 .

The body part 70 includes a base 701, a projecting part 702, and a projecting part 702s. The top surface of the base 701 is flush with the top surface 520 of the second pedestal portion 52 . The

protrusions

702 and 702s protrude upward from the base 701 . The upper surfaces of the protruding

portions

702 and 702s are located below the upper surface 540 of the peripheral wall portion 54 .

It should be noted that a surface positioned below the upper surface 700 of the main body 70 means that a surface is positioned below any surface that constitutes the upper surface 700 of the main body 70 . In other words, it means that the certain surface is located below the upper surface of the base 701 and the upper surfaces of the

protrusions

702 and 702s.

Similarly, a surface positioned below the upper surface 710 of the first end portion 71 means that a surface is positioned below any surface that constitutes the upper surface 710 of the first end portion 71 . In other words, it means that the certain surface is located below the upper surface of the base 711 and the upper surface of the projecting portion 712 .

Similarly, a surface positioned below the upper surface 710s of the second end 71s means positioned below any surface that constitutes the upper surface 710s of the second end 71s. In other words, it means that the certain surface is located below the upper surface of the base 711s and the upper surface of the projecting portion 712s.

The protruding portions 712 and 702 are provided at symmetrical positions with respect to a line segment that bisects the case 5 to the left and right. The protruding

portions

712s and 702s are provided at symmetrical positions with respect to a line segment that bisects the case 5 to the left and right.

For example, a metal plate having a uniform thickness is prepared as a material for the second metal member 7, and a part of the metal plate is extruded by press working to form the

protrusions

712, 712s, 702, and 702s. good too. Alternatively, the

protrusions

712, 712s, 702, 702s may be joined to the metal plate.

The movable contact body 4 contacts and is supported by the upper surface of each of the

projections

712, 712s, 702, 702s. Since the movable contact body 4 is arranged higher than when the projecting

portions

712, 712s, 702, and 702s are not provided, the movable contact body 4 moves toward the first intermediate portion when an operating force acts on the movable contact body 4. It is possible to further reduce the possibility of contact with 73 and second intermediate portion 73s. Also, the stroke of the push switch 1B can be lengthened.

(Other modifications of the embodiment)
Other modifications of the embodiment are listed below. The following modified examples may be implemented in combination as appropriate. Moreover, the following modifications may be realized by appropriately combining with each of the modifications described above.

The upper surface 730 of the first intermediate portion 73 may be positioned below the bottom surface 500 of the recess 50 . A top surface 730 s of the second intermediate portion 73 s may be positioned below the bottom surface 500 of the recess 50 .

The push switch 1 is not limited to being used in the operation section of the device and operated by a person, and may be used in the detection section of the device, for example. When the push switch 1 is used as a detection unit of equipment, the push switch 1 is used as a limit switch for detecting the position of mechanical parts such as an actuator.

The pressing body 3 is not limited to being placed between the protective sheet 2 and the movable contact body 4, but may be placed above the protective sheet 2, for example. In this case, the lower surface of the pressing body 3 is joined to the upper surface of the protective sheet 2 . In this configuration, the operating force acting on the pressing body 3 is transmitted to the movable contact body 4 via the protective sheet 2 .

The protective sheet 2 only needs to cover at least a portion of the recess 50, and it is not essential to cover the entire recess 50. For example, holes may be formed in a portion of the protective sheet 2 . Alternatively, the protective sheet 2 may be omitted in the first place.

(summary)
The following aspects are disclosed from the embodiments and the like described above.

A push switch (1, 1A, 1B) according to a first aspect includes a case (5), a first metal member (6), a movable contact body (4), and a second metal member (7). Prepare. The case (5) has a concave portion (50) with an upper opening. The case (5) is made of resin. The first metal member (6) is embedded in the case (5). The first metal member (6) has a fixed contact portion (61) exposed from the bottom surface (500) of the recess (50). The movable contact body (4) has a movable contact portion (400) facing the fixed contact portion (61). A movable contact body (4) is provided above the first metal member (6). The movable contact body (4) has conductivity. A second metal member (7) is embedded in the case (5). The case (5) has a first pedestal (51) and a second pedestal (52). The first pedestal (51) and the second pedestal (52) are each provided within the recess (50). The upper surface (510) of the first pedestal (51) and the upper surface (520) of the second pedestal (52) are located above the fixed contact (61) and the bottom (500) of the recess (50). ) above. The second metal member (7) includes a main body (70), a first end (71), a second end (71s), and between the main body (70) and the first end (71). a first intermediate portion (73) located at the second intermediate portion (73s) located between the body portion (70) and the second end portion (71s); the first end portion (71) and the first A first connecting portion (72) connecting the intermediate portion (73), a second connecting portion (74) connecting the first intermediate portion (73) and the body portion (70), and a second end portion (71s). ) and the second intermediate portion (73s), and a fourth connecting portion (74s) that connects the second intermediate portion (73s) and the body portion (70). . The first end (71) and the second end (71s) are exposed on the upper surface (510) of the first seat (51) and contact the movable contact (4). 51). The body portion (70) is provided on the second seat portion (52) so as to be exposed on the upper surface (520) of the second seat portion (52) and to come into contact with the movable contact body (4). The movable contact body (4) can be transformed into a shape that brings the movable contact portion (400) into contact with the fixed contact portion (61) and a shape that separates the movable contact portion (400) from the fixed contact portion (61). The top surface (730) of the first intermediate portion (73) is located below the top surface (710) of the first end (71) and the top surface (700) of the body portion (70). The upper surface (730s) of the second intermediate portion (73s) is located below the upper surface (710s) of the second end portion (71s) and the upper surface (700) of the body portion (70). When viewed from above, the fixed contact portion (61) is positioned between the first intermediate portion (73) and the second intermediate portion (73s). The first connecting portion (72), the second connecting portion (74), the third connecting portion (72s), and the fourth connecting portion (74s) are covered with the case (5).

According to the above configuration, the upper surface (730) of the first intermediate portion (73) is located below the upper surface (710) of the first end (71) and the upper surface (700) of the main body (70). The upper surface (730s) of the second intermediate portion (73s) is positioned below the upper surface (710s) of the second end portion (71s) and the upper surface (700) of the body portion (70). Therefore, when the movable contact body (4) changes into a shape (operating shape) in which the movable contact portion (400) is brought into contact with the fixed contact portion (61), the movable contact body (4) is moved to the first intermediate portion (73). The possibility of contacting the upper surface (730) and the upper surface (730s) of the second intermediate portion (73s) can be reduced. Thereby, the load (stress) applied to the movable contact body (4) can be reduced. Moreover, the upper surface (510) of the first pedestal (51) provided with the first end (71) and the upper surface (520) of the second pedestal (52) provided with the second end (71s) is located above the bottom surface (500) of the recess (50) of the case (5). Therefore, at least one of the upper surface (730) of the first intermediate portion (73) and the upper surface (730s) of the second intermediate portion (73s) forms part of the bottom surface (500) of the case (5). When it is covered with the movable contact body (4) of the operation shape, it is possible to reduce the possibility of contacting the part. Therefore, in this case as well, the load (stress) applied to the movable contact body (4) can be reduced.

Further, in the push switch (1, 1B) according to the second aspect, in the first aspect, at least part of the first intermediate portion (73) of the second metal member (7) and the second metal member (7) At least part of the second intermediate portion (73s) of is exposed to the bottom surface (500) of the recess (50).

According to the above configuration, compared to the case where the upper surface (730) of the first intermediate portion (73) and the upper surface (730s) of the second intermediate portion (73s) are covered with a part of the case (5), , the upper surfaces (730) and (730s) are vacant, so that the movable contact body (4) can be configured other than the fixed contact portion (61) (first intermediate portion (73), second intermediate portion (73s) and It is possible to further reduce the possibility of unnecessary contact with the case (5), etc.).

Further, in the push switch (1A) according to the third aspect, in the first aspect, the first intermediate portion (73) of the second metal member (7) and the second intermediate portion (73) of the second metal member (7) 73s) is obscured by the case (5).

According to the above configuration, the first intermediate portion (73) and the second intermediate portion (73s) can be protected.

Further, in the push switch (1, 1A) according to the fourth aspect, in any one of the first to third aspects, the upper surface (710) of the first end (71) and the second end (71s) The upper surface (710s) of the and the upper surface (510) of the first pedestal (51) are flush with each other.

According to the above configuration, the stress applied from the movable contact (4) can be distributed to the first end (71), the second end (71s) and the first pedestal (51).

Further, in the push switch (1B) according to the fifth aspect, in any one of the first to third aspects, the first end (71) includes a protrusion (712). The protrusion (712) protrudes above the upper surface (510) of the first pedestal (51). The second end (71s) includes a protrusion (712s). The protrusion (712s) protrudes upward from the upper surface (510) of the first pedestal (51). The movable contact body (4) is in contact with the protrusion (712) of the first end (71) and the protrusion (712s) of the second end (71s).

According to the above configuration, the movable contact body (4) can be arranged higher, so that the possibility of unnecessary contact of the movable contact body (4) with components other than the fixed contact portion (61) can be further reduced.

Further, according to the push switch (1, 1A, 1B) according to the sixth aspect, in any one of the first to fifth aspects, the upper surface (610) of the fixed contact portion (61) is the recess (50). It is located above the bottom surface (500).

According to the above configuration, it is easy to bring the movable contact portion (400) into contact with the fixed contact portion (61). can be further reduced.

Further, in the push switch (1, 1A, 1B) according to the seventh aspect, in any one of the first to sixth aspects, the movable contact body (4) contacts the first end (71) The distance (L1) between the first position (P1) and the second position (P2) in contact with the second end (71s) of the movable contact body (4) is 2 position (P2) is shorter than the distance (L2). The third position (P3) is the position of the movable contact body (4) that contacts the main body (70).

According to the above configuration, the amount of movement of the movable contact portion (400) can be made relatively large when the movable contact body (4) is deformed.

Further, the push switch (1, 1A, 1B) according to the eighth aspect further comprises a pressing body (3) in any one of the first to seventh aspects. The pressing body (3) is arranged above the movable contact body (4). When viewed from above, the entire pressing body (3) overlaps the fixed contact portion (61).

According to the above configuration, compared to the case where the fixed contact portion (61) is smaller than the above, the pressing body (3) presses the movable contact body (4) downward, and the pressing body (3) and the fixed contact portion (3) are separated from each other. 61), the possibility of excessive shear stress being applied to the movable contact body (4) can be reduced.

Configurations other than the first aspect are not essential configurations for the push switches (1, 1A, 1B), and can be omitted as appropriate.

1, 1A, 1B Push switch 3 Pressing body 4 Movable contact body 5 Case 6 First metal member 7 Second metal member 50 Recess 51 First pedestal 52 Second pedestal 61 Fixed contact 70 Main body 71 First end 71s Second end portion 72 First connecting portion 74 Second connecting portion 72s Third connecting portion 74s Fourth connecting portion 73 First intermediate portion 73s Second intermediate portion 400 Movable contact portion 500 Bottom surface 510 Top surface 520 Top surface 610 Top surface 700 Top surface 710 Upper surface 710s Upper surface 712 Protruding portion 712s Protruding portion 730 Upper surface 730s Upper surface L1 Distance L2 Distance P1 First position P2 Second position P3 Third position

Claims

a resin case having a concave portion with an upper opening;
a first metal member embedded in the case and having a fixed contact portion exposed from the bottom surface of the recess;
a movable contact body having a movable contact portion facing the fixed contact portion, provided above the first metal member, and having conductivity;
a second metal member embedded in the case,
The case has a first pedestal and a second pedestal provided in the recess,
the top surface of the first pedestal portion and the top surface of the second pedestal portion are located above the fixed contact portion and above the bottom surface of the recess;
The second metal member is
a main body;
a first end;
a second end;
a first intermediate portion positioned between the body portion and the first end;
a second intermediate portion located between the body portion and the second end;
a first connecting portion connecting the first end portion and the first intermediate portion;
a second connecting portion that connects the first intermediate portion and the main body;
a third connecting portion that connects the second end portion and the second intermediate portion;
a fourth connecting portion that connects the second intermediate portion and the main body portion;
The first end and the second end are provided on the first pedestal so as to be exposed on the upper surface of the first pedestal and contact the movable contact body,
the body portion is provided on the second pedestal portion so as to be exposed on the upper surface of the second pedestal portion and to come into contact with the movable contact body;
The movable contact body is deformable into a shape that brings the movable contact portion into contact with the fixed contact portion and a shape that separates the movable contact portion from the fixed contact portion,
the upper surface of the first intermediate portion is positioned below the upper surface of the first end portion and the upper surface of the main body;
the upper surface of the second intermediate portion is positioned below the upper surface of the second end portion and the upper surface of the main body;
When viewed from above, the fixed contact portion is positioned between the first intermediate portion and the second intermediate portion,
The first connecting portion, the second connecting portion, the third connecting portion, and the fourth connecting portion are covered with the case,
push switch.
At least a portion of the first intermediate portion of the second metal member and at least a portion of the second intermediate portion of the second metal member are exposed to the bottom surface of the recess,
The push switch according to claim 1.
The first intermediate portion of the second metal member and the second intermediate portion of the second metal member are covered with the case,
The push switch according to claim 1.
The top surface of the first end, the top surface of the second end, and the top surface of the first pedestal are flush.
The push switch according to any one of claims 1-3.
the first end includes a protrusion that protrudes upward from the upper surface of the first pedestal,
the second end includes a protrusion that protrudes upward from the upper surface of the first pedestal,
the movable contact body is in contact with the protrusion of the first end and the protrusion of the second end;
The push switch according to any one of claims 1-3.
The top surface of the fixed contact portion is located above the bottom surface of the recess,
The push switch according to any one of claims 1-5.
The distance between a first position of the movable contact body contacting the first end and a second position of the movable contact body contacting the second end is less than the distance between the third position in contact with the body and the second position;
The push switch according to any one of claims 1-6.
further comprising a pressing body arranged above the movable contact body,
When viewed from above, the entire pressing body overlaps the fixed contact portion,
The push switch according to any one of claims 1-7.