JP6399706B2 - Movable contact member, manufacturing method thereof, and switch device using the movable contact member - Google Patents

Description

  The present invention relates to a movable contact member and a switch device using the movable contact member, and in particular, a movable contact member that makes a movable contact member reversely move when pressed and contacts and separates the contact, and a manufacturing method thereof, The present invention also relates to a switch device using the movable contact member.

  In general, as a movable contact member used in an electronic device such as a digital camera or a mobile phone, in order to obtain an operation feeling such as an operating force and a click feeling, the movable contact member is reversely operated by being pressed, and the contact A movable contact member for making contact and separation is used. As this movable contact member, a member formed by processing a metal thin plate into a dome shape with a predetermined curvature is well known.

  As a conventional example of a switch device using such a movable contact member, Patent Document 1 proposes a push button switch 910 (switch device) as shown in FIG. FIG. 16 is an exploded perspective view of a push button switch 910 using a conventional contact plate 912 (movable contact member).

  A push button switch 910 shown in FIG. 16 has an approximately box-shaped insulating base 911 in which a terminal 923 (first fixed contact) and a terminal 924 (second fixed contact) are embedded, and a contact plate accommodated in the insulating base 911. 912, a dust cover 913 covering the contact plate 912, a push button 914 for operating the contact plate 912 via the dust cover 913, and the insulating base 911 in a state where the button portion 939 of the push button 914 is penetrated. And a lid 915 for closing. Further, the contact plate 912 is formed by punching a spring material flat plate, and as shown in FIG. 16, the whole is formed in a rectangular shape, and a bulging portion 951 as a contact portion bulged into an oval shape, The four corner portions 952 that are left untouched are configured. When the rectangular contact plate 912 having such a short direction (X direction shown in FIG. 16) and a long direction (Y direction shown in FIG. 16) is used, the width direction (short side) of the push button switch 910 is used. (Direction) can be reduced, and an operation stroke obtained from the size of the contact plate 912 in the longitudinal direction, that is, an operation stroke equivalent to a square shape formed with the size in the longitudinal direction can be secured. It is done.

JP 2003-187664 A

  However, in general, in the case of a movable contact member that performs a reversal operation, when the movable contact member is pushed down, the outer shape of the movable contact member spreads outward, so that tensile stress is generated at the end of the outer periphery. become. In particular, the end portion of the long side in the short direction (SE shown in FIG. 16 in the conventional example) tended to show a significant adverse effect due to the tensile stress. For this reason, under conditions such as a high operating load and a long operating stroke, there is a problem that stress concentrates on the end portion of the outer periphery, cracks and the like occur, and the life is shortened. On the other hand, in the conventional example, the occurrence of cracks can be prevented by providing the corner portion 952 with a portion (joint portion 954 shown in FIG. 16) that is cut off during the punching process, but the above problem is fundamentally solved. It is not a means.

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems, and to provide a movable contact member having a long life, a method for manufacturing the movable contact member, and a switch device using the movable contact member.

  In order to solve this problem, a movable contact member of the present invention, a method for manufacturing the same, and a switch device using the movable contact member include a bulge portion that can be reversed by a bulge pressure and a bulge portion. A movable contact member having an outer shape having a short side direction and a long side direction, wherein the plurality of leg portions are planarly viewed in the longitudinal direction. At least one each provided on opposite sides across the bulging portion, and the bulging portion has a protruding portion protruding to the bulging side in a longitudinal cross-sectional view along the short direction. And the protrusions are provided at two locations extending along the longitudinal direction and sandwiching the central portion in the lateral direction.

  According to this, in the movable contact member of the present invention, when the bulging portion is pressed and reversed, the protruding portion suppresses the expansion of the bulging portion in the short direction. For this reason, it is possible to reduce the concentration of internal stress (tensile stress pulled toward the longitudinal direction) at the outer peripheral end in the short direction. As a result, defects such as cracks at the outer peripheral edge in the short direction are reduced, and the life can be extended.

  Further, the movable contact member of the present invention is characterized in that the bulging portion has a cutout portion that forms a part of the outer periphery in the lateral direction.

  According to this, since the bulging portion having a larger outer shape is provided and the cutout portion is formed in a part of the outer periphery in the short direction, a longer operation stroke can be achieved in the reversing operation of the bulging portion. it can. On the other hand, when a notch is provided in the bulging portion in the short direction, internal stress (tensile stress) is applied by this notch. In the present invention having a projecting portion, this notch The concentration of internal stress (tensile stress) in can be reduced. For this reason, defects, such as a crack in a notch part, are reduced. As a result, a longer operation stroke can be ensured while extending the life.

  Moreover, the movable contact member of the present invention is characterized in that the projecting portions are formed symmetrically with respect to the central portion in the short direction.

  According to this, during the reversing operation of the bulging part, the action of reducing the internal stress by the protruding part is shorter on the both sides in the short direction than the outer peripheral end part in the short direction where internal stress (tensile stress) is applied more. Will work equally. As a result, the internal stress (tensile stress) is not biased to either one, and a longer life can be achieved.

  The manufacturing method of the movable contact member of the present invention includes a bulging portion that can be reversed by bulging and pressing in a dome shape, and a plurality of legs that support the bulging portion, and has an outer shape. A method for manufacturing a movable contact member having a short side direction and a long side direction, and forming a plate-like base member having the short side direction and the long side direction while leaving a joint from a sheet-like metal material A bending step of forming the bending member by bending the base member into a shape protruding to one side along the longitudinal direction intersecting the central portion of the short side direction; and the bending step A drawing process of forming a drawing member by squeezing the member so as to bulge in the dome shape toward the one side centered on the central portion in the short side direction and the long side direction in plan view. And connected to the drawing member A cutting process step of cutting the joint part in accordance with the outer shape, and in the drawing process, the bulging part is formed and a protruding part protruding to the bulging side is provided. It extends along the longitudinal direction and is formed at two locations across the central portion in the lateral direction.

  According to this, the projecting portion projecting to the side where the bulging portion bulges extends along the longitudinal direction, and the movable contact member formed at two positions across the central portion in the short direction can be easily provided. Can be produced. By this, when the bulging part is pressed and reversed, the concentration of internal stress (tensile stress) at the outer peripheral end in the short direction can be reduced, and defects such as cracks at the outer peripheral end are reduced, A movable contact member capable of extending the life can be provided.

  The movable contact member of the present invention is characterized in that, in the outer shape processing step, the connecting portion is provided in connection with the central portion of the leg portion in the lateral direction.

  According to this, the cut surface which cut | disconnected the connection part produced in the cutting process after a drawing process will be provided in the vicinity of a protruding part. For this reason, when the internal stress (tensile stress) is applied to the outer peripheral edge in the longitudinal direction, the projecting portion concentrates the internal stress (tensile stress) on the cut surface weak by the internal stress (tensile stress). This will contribute to reduction. As a result, it is possible to provide a movable contact member that can reduce defects such as cracks at the outer peripheral end of the leg portion and can extend the life.

  Moreover, the movable contact member of this invention is the movable contact member in any one of Claim 1 thru | or 4, The 1st fixed contact member which can contact / separate with the top part of the said bulging part of this movable contact member, A second fixed contact member in contact with the leg portion of the movable contact member, a first terminal portion electrically connected to the first fixed contact member, and an electrical connection to the second fixed contact member The second terminal portion is provided.

  According to this, when the bulging portion is pressed and reversed, the concentration of internal stress (tensile stress) at the outer peripheral end portion can be reduced, and defects such as cracks at the outer peripheral end portion are reduced, thereby extending the life. It is possible to provide a switch device capable of achieving the above.

  In the movable contact member of the present invention, when the bulging portion is pressed and reversed, the protruding portion suppresses the spread of the bulging portion in the short direction. For this reason, it is possible to reduce the concentration of internal stress (tensile stress pulled toward the longitudinal direction) at the outer peripheral end in the short direction. As a result, defects such as cracks at the outer peripheral edge in the short direction are reduced, and the life can be extended.

  Further, according to the method of manufacturing the movable contact member of the present invention, the protruding portion protruding to the side where the bulging portion bulges extends along the longitudinal direction and is formed at two locations across the central portion in the short direction. Thus, the movable contact member can be easily manufactured. By this, when the bulging part is pressed and reversed, the concentration of internal stress (tensile stress) at the outer peripheral end in the short direction can be reduced, and defects such as cracks at the outer peripheral end are reduced, A movable contact member capable of extending the life can be provided.

  Further, the switch device using the movable contact member of the present invention has an internal stress (tensile stress) at the outer peripheral end in the short direction of the movable contact member when the bulging portion of the movable contact member is pressed and reversed. ) Can be reduced, defects such as cracks at the outer peripheral edge can be reduced, and a switch device capable of extending the life can be provided.

It is a perspective view of the movable contact member of a 1st embodiment of the present invention. It is a top view of the movable contact member of 1st Embodiment of this invention. FIGS. 3A and 3B are diagrams illustrating the movable contact member according to the first embodiment of the present invention, in which FIG. 3A is a front view as viewed from the Y2 side in FIG. 1, and FIG. It is sectional drawing in the III-III line. It is a figure explaining the movable contact member of 1st Embodiment of this invention, Comprising: Fig.4 (a) is the side view seen from the X1 side in FIG. 1, FIG.4 (b) is shown in FIG. It is sectional drawing in the IV-IV line. It is a figure explaining the movable contact member of 1st Embodiment of this invention, Comprising: It is an expanded sectional view of the P section shown in FIG.3 (b). FIG. 6A is a process diagram for explaining the method of manufacturing the movable contact member according to the first embodiment of the present invention, and FIG. 6A is a top view showing a state after the outer shape processing process, and FIG. FIG. 6C is a top view showing a state after the bending step, FIG. 6C is a top view showing a state after the drawing step, and FIG. 6D is a state after the cutting step. FIG. FIGS. 7A and 7B are diagrams illustrating a method of manufacturing a movable contact member according to the first embodiment of the present invention, in which FIG. 7A is a view showing a punch and a die in a bending process, and FIG. FIG. 3 is a view showing a punch and a die in a drawing process. It is a perspective view of the push switch of 2nd Embodiment of this invention. It is a disassembled perspective view of the push switch of 2nd Embodiment of this invention. It is a perspective view of the sheet switch of a 3rd embodiment of the present invention. It is a figure explaining the sheet switch concerning a 3rd embodiment of the present invention, and Drawing 11 (a) is a top view of a sheet switch seen from the Z1 side shown in Drawing 10, and Drawing 11 (b) It is a side view of the sheet switch seen from the X1 side shown in FIG. It is a figure explaining the sheet switch concerning a 3rd embodiment of the present invention, and Drawing 12 (a) is a sectional view in the XI-XI line shown in Drawing 11 (a), and Drawing 12 (b) It is sectional drawing in the XII-XII line | wire shown to Fig.11 (a). It is a figure explaining the sheet | seat switch concerning 3rd Embodiment of this invention, Comprising: It is a rear view of the sheet | seat member of P part shown to Fig.11 (a). FIGS. 14A and 14B are diagrams illustrating a sheet switch according to a third embodiment of the present invention, in which FIG. 14A is a top view of a P portion sheet substrate shown in FIG. 11A and FIG. FIG. 12 is a bottom view of the sheet substrate at a portion Q shown in FIG. It is a figure explaining the modification of the movable contact member concerning 1st Embodiment of this invention, Comprising: Fig.15 (a) is a top view of the movable contact member of the modification 2, FIG.15 (b) FIG. 10 is a top view of a movable contact member according to Modification 3. It is a disassembled perspective view of the pushbutton switch using the contact plate (movable contact member) of the prior art example.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
First, the movable contact member 10 of 1st Embodiment of this invention is demonstrated. FIG. 1 is a perspective view of the movable contact member 10 according to the first embodiment of the present invention. FIG. 2 is a top view of the movable contact member 10 according to the first embodiment of the present invention. 3A is a front view of the movable contact member 10 viewed from the Y2 side shown in FIG. 1, and FIG. 3B is a cross-sectional view taken along line III-III shown in FIG. 4A is a side view of the movable contact member 10 viewed from the X1 side in FIG. 1, and FIG. 4B is a cross-sectional view taken along line IV-IV shown in FIG. FIG. 5 is an enlarged cross-sectional view of a P portion shown in FIG.

  The movable contact member 10 according to the first embodiment of the present invention is manufactured by machining a conductive metal plate, has an appearance as shown in FIG. 1, and is viewed in plan as shown in FIG. The outer shape is formed in a substantially rectangular or oval shape having a short direction SD (YX direction shown in FIG. 2) and a longitudinal direction LD (Y direction shown in FIG. 2). Further, as shown in FIGS. 1, 3 and 4, the movable contact member 10 has a bulging portion 11 whose central portion bulges upward (in the Z1 direction shown in FIGS. 3 and 4) in a dome shape, and a longitudinal direction. It is comprised from the two leg parts 51 which are provided in the both ends which oppose on both sides of the bulging part 11 in direction LD, and support the bulging part 11. When the bulging portion 11 is pressed by the operator's pressing operation, the movable contact member 10 reverses the bulging portion 11 and returns to the state before the pressing operation when the pressing is released. ing.

  Further, as shown in FIG. 2, the movable contact member 10 is formed symmetrically with respect to the center portion (IV-IV line shown in FIG. 2) in the short direction SD in plan view, and has a longitudinal direction. The bulging portion 11 and the two leg portions 51 are formed symmetrically with respect to the center portion of the direction LD (III-III line shown in FIG. 2). Further, the inner surface (concave surface) of the movable contact member 10 is subjected to silver plating in order to obtain electrical contact stability with a contact member (generally a fixed contact member) that contacts when the surface is reversed. Yes. Note that the pressing operation by the operator is performed by an operating member (not shown) (including the operator's finger).

  As shown in FIGS. 1 and 2, the bulging portion 11 of the movable contact member 10 has projecting portions 11t extending along the longitudinal direction LD at two locations across the central portion in the lateral direction SD. Is provided. When viewed in a longitudinal section along the short direction SD, the protruding portion 11t protrudes to the side where the bulging portion 11 bulges as shown in FIG. The projecting portion 11t extends to the two leg portions 51 and extends to the outer peripheral end portion L1 of the leg portion 51.

  Thereby, when the bulging part 11 is pressed and reversed, the projecting part 11t suppresses the spread of the bulging part 11 in the short direction SD. For this reason, it is possible to reduce the concentration of internal stress (tensile stress pulled toward the longitudinal direction LD) at the outer peripheral end portion S1 in the short direction SD. As a result, defects such as cracks at the outer peripheral end S1 in the short direction SD are reduced, and a longer life can be achieved.

  Further, the protruding portion 11 protrudes toward the bulging side of the bulging portion 11, and the bulging portion 11 including the protruding portion 11 t is pushed and inverted, thereby resulting in a larger pressing load. . For this reason, a better click feeling (operation feeling) can be obtained for the operator.

  Moreover, in 1st Embodiment of this invention, as shown in FIG. 2, the bulging part 11 bulged in a circular shape has a notch part 11k in which a part of the circular shape is missing, This notch 11k forms part of the outer periphery formed on both sides in the short direction SD. As a result, the internal stress (tensile stress) at the outer peripheral end S1 in the lateral direction SD is applied by the notch 11k. In the present invention having the projecting portion 11t, the internal stress at the notch 11k is increased. The concentration of stress (tensile stress) can be reliably reduced. For this reason, defects, such as a crack in the notch part 11k, are reduced. On the other hand, a part of the cutout portion 11k is used as the circular bulge portion 11 having a larger outer diameter, so that a longer operation stroke can be achieved in the reversing operation of the bulge portion 11. As a result, a longer operation stroke can be ensured while extending the life.

  Further, since the projecting portion 11t is formed in line symmetry with the central portion of the short direction SD interposed therebetween, the short direction SD in which internal stress (tensile stress) is more applied during the reversing operation of the bulging portion 11. With respect to the outer peripheral end portion S1, the effect of reducing the internal stress by the projecting portion 11t works equally on both sides in the lateral direction SD. As a result, the internal stress (tensile stress) is not biased to either one, and a longer life can be achieved.

  The leg portion 51 of the movable contact member 10 is provided with a cut surface 51p formed at the time of manufacture so as to be cut into individual movable contact members 10 at the center portion in the short direction SD. In the first embodiment of the present invention, the cut surface 51p is provided between the two projecting portions 11t and in the vicinity of the projecting portion 11t. For this reason, even when the internal stress (tensile stress) is applied to the outer peripheral end portion L1 in the longitudinal direction LD, similarly to the outer peripheral end portion S1 in the short-side direction SD, the internal stress (tensile stress) causes a weak cutting surface 51p On the other hand, this projecting portion 11t contributes to a reduction in concentration of internal stress (tensile stress). As a result, defects such as cracks at the outer peripheral end L1 of the leg portion 51 are reduced, and a longer life can be achieved.

  Next, the manufacturing method of the movable contact member 10 concerning 1st Embodiment of this invention is demonstrated. FIG. 6 is a process diagram for explaining the method of manufacturing the movable contact member 10 according to the first embodiment of the present invention, and FIG. 6A is a top view showing a state after the outer shape machining process P1. 6 (b) is a top view showing a state after the bending step P2, and FIG. 6 (c) is a top view showing a state after the drawing step P3. FIG. These are top views which showed the state after the cutting process P4. FIG. 6 shows a state in which three movable contact members 10 are produced for easy understanding, but the number is not limited to three. FIG. 7 is a view for explaining the manufacturing method of the movable contact member 10 according to the first embodiment of the present invention, and FIG. 7A is a view showing the punch 2P and the die 2D in the bending step P2. FIG. 7B is a diagram showing the punch 3P and the die 3D in the drawing process P3. Although FIG. 7 shows a vertical cross-sectional shape, the cross-sectional hatching is omitted for easy understanding.

  As shown in FIG. 6, the manufacturing method of the movable contact member 10 according to the first embodiment of the present invention includes an outer shape processing step P1 for forming a base member B1 having a short side direction SD and a long side direction LD, and a base member. Bending step P2 for forming B1 by bending B1 so as to project to one side, and drawing member squeezed so that the bending member C1 bulges toward one side in a dome shape. It has a drawing process P3 for forming D1 and a cutting process P4 for cutting the connecting portion 91 connected to the drawing member D1 according to the outer shape.

  First, an outer shape processing step P1 for forming the base member B1 is performed. In the outer shape processing step P1, a base material A1 that is a sheet-like metal material is prepared, and the base material A1 is punched using a mold (a punch and a die). As a result, as shown in FIG. 6A, the base material A1 is formed with the plate-like base member B1 having the short side direction SD and the long side direction LD while leaving the connecting portion 91. Further, the connecting portion 91 is a portion that finally becomes the leg portion 51 of the movable contact member 10, and is connected to the central portion of the leg portion 51 in the short direction SD.

  Next, a bending process P2 for forming the bending member C1 is performed. In the bending process P2, the base member B1 is bent using the punch 2P and the die 2D (die) shown in FIG. Thereby, as shown in FIG. 6B, the base member B1 is bent along the longitudinal direction LD intersecting the central portion of the short side direction SD, and on one side (in FIG. It is formed on a bent member C1 (see FIG. 7B) having a shape protruding to the front side.

  Next, a drawing process P3 for forming the drawing member D1 is performed. In the drawing process P3, the bending member C1 is drawn using a punch 3P and a die 3D (die) shown in FIG. As a result, as shown in FIG. 6C, the bending member C1 is squeezed toward one side centered on the central portion of the short direction SD and the long direction LD in plan view, and swells in a dome shape. It is formed on the drawn member D1 having the extracted shape. In the drawing step P3, the bulging portion 11 of the movable contact member 10 is formed, and the projecting portion 11t protruding to the bulging side is extended along the longitudinal direction LD so as to extend in the short direction SD. It is formed in two places across the central part of.

  Finally, the cutting process P4 for cutting the portion of the connecting portion 91 is performed. In the cutting process P4, the drawing member D1 is cut using a die (punch and die). Thereby, as shown in FIG. 6D, the drawing member D <b> 1 is cut along the outer shape of the final movable contact member 10 at the connecting portion 91 connected to the drawing member D <b> 1. The movable contact members 10 are individually separated.

  By the manufacturing method as described above, a dome-like bulge portion 11 that can be reversed by bulge pressure and a plurality of leg portions 51 that support the bulge portion 11 are provided, and the outer shape is short direction. The movable contact member 10 having the SD and the longitudinal direction LD is easily manufactured.

  The effects of the movable contact member 10 and the manufacturing method thereof according to the first embodiment of the present invention configured as described above will be collectively described below.

  The movable contact member 10 of the first embodiment of the present invention is provided with a protruding portion 11t that protrudes toward the side where the bulging portion 11 bulges in the longitudinal direction along the short direction SD. The projecting portion 11t extends along the longitudinal direction LD and is provided at two locations across the central portion in the lateral direction SD. Thereby, when the bulging part 11 is pressed and reversed, the projecting part 11t suppresses the spread of the bulging part 11 in the short direction SD. For this reason, it is possible to reduce the concentration of internal stress (tensile stress pulled toward the longitudinal direction LD) at the outer peripheral end portion S1 in the short direction SD. As a result, defects such as cracks at the outer peripheral end S1 in the short direction SD are reduced, and a longer life can be achieved.

  In addition, since the bulging portion 11 having a larger outer shape is provided and the cutout portion 11k is formed in a part of the outer periphery in the short direction SD, a longer operation stroke is provided in the reversing operation of the bulging portion 11. Can do. On the other hand, when the notched portion 11k is provided in the bulged portion 11 in the short direction SD, the internal stress (tensile stress) at the outer peripheral end S1 in the short direction SD is applied by the notched portion 11k. In this invention which has the shape part 11t, the concentration of the internal stress (tensile stress) in this notch part 11k can be reduced reliably. For this reason, defects, such as a crack in the notch part 11k, are reduced. As a result, a longer operation stroke can be ensured while extending the life.

  Further, since the projecting portion 11t is formed symmetrically with respect to the central portion in the short direction SD, the outer periphery in the short direction SD is more subjected to internal stress (tensile stress) during the reversing operation of the bulging portion 11. The effect of reducing the internal stress by the projecting portion 11t acts equally on both sides of the short direction SD with respect to the end portion S1. As a result, the internal stress (tensile stress) is not biased to either one, and a longer life can be achieved.

  The manufacturing method of the movable contact member 10 according to the first embodiment of the present invention includes an outer shape processing step P1 for forming a plate-like base member B1 having a short direction SD and a longitudinal direction LD, and the base member B1 as a longitudinal direction LD. A bending process P2 for forming the bent member C1 by bending to form a shape protruding to one side along the squeeze, and drawing to squeeze the bent member C1 so as to bulge toward the one side It has the drawing process P3 which forms the member D1, and the cutting process P4 which cut | disconnects the connection part 91 connected to the drawing member D1. For this reason, the projecting portion 11t protruding to the bulging side extends along the longitudinal direction LD, and the movable contact member 10 formed at two locations across the central portion in the lateral direction SD is easily manufactured. be able to. As a result, when the bulging portion 11 is pressed and reversed, the concentration of internal stress (tensile stress) at the outer peripheral end S1 in the lateral direction SD can be reduced, and defects such as cracks at the outer peripheral end S1 are caused. It is possible to provide the movable contact member 10 that is reduced and can have a long life.

  In addition, since the connecting portion 91 is provided in connection with the central portion of the leg 51 in the lateral direction SD in the outer shape processing step P1, the cutting is performed by cutting the connecting portion 91 generated in the cutting step P4 after the drawing step P3. The surface 51p is provided in the vicinity of the protruding portion 11t. For this reason, when the internal stress (tensile stress) is applied to the outer peripheral end L1 in the longitudinal direction LD, the projecting portion 11t has an internal stress (tensile stress) with respect to the cut surface 51p that is weak due to the internal stress (tensile stress). ) Will be reduced. As a result, it is possible to provide the movable contact member 10 that can reduce defects such as cracks at the outer peripheral end portion L1 of the leg portion 51 and can have a longer life.

[Second Embodiment]
Next, a push switch 200 that is a switch device using the movable contact member 10 according to the first embodiment of the present invention will be described. FIG. 8 is a perspective view of the push switch 200 according to the second embodiment of the present invention. FIG. 9 is an exploded perspective view of the push switch 200 according to the second embodiment of the present invention. In addition, about the same structure as 1st Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  The push switch 200 according to the second embodiment of the present invention has a rectangular parallelepiped shape as shown in FIG. 8, and as shown in FIG. 9, the movable contact member 10 that can be reversed by a pressing operation, and the movable contact member 10. , A case 2 having a housing portion 2 s opened on one side, a first fixed contact member 13 and a second fixed contact member 23 that are exposed to face the housing portion 2 s, and a first fixed contact member 13, a first terminal portion 14 electrically connected to the second terminal portion 24, a second terminal portion 24 electrically connected to the second fixed contact member 23, a sheet member 25 disposed so as to cover the accommodating portion 2s, and a movable contact And a pusher member 8 disposed between the member 10 and the sheet member 25. When the push switch 200 is assembled, the movable contact member 10 is accommodated in the accommodating portion 2 s of the case 2, the pusher member 8 is placed on the movable contact member 10, and the sheet member 25 is accommodated in the case 2. Covers the part 2s and is welded to the case 2.

  Next, each structure mentioned above is demonstrated in detail. First, as the movable contact member 10 of the push switch 200, the movable contact member 10 described in detail in the first embodiment is used, and as shown in FIG. 9, the center part is upward (Z1 direction shown in FIG. 9). A bulging portion 11 bulging in a dome shape and two leg portions 51 provided on both ends facing each other across the bulging portion 11 and supporting the bulging portion 11 are configured. Further, the movable contact member 10 is provided with two protruding portions 11t extending along the longitudinal direction LD with the central portion in the short direction SD interposed therebetween. The protrusion 11t protrudes to the side where the bulging portion 11 bulges when viewed in a longitudinal section along the short direction SD. When the bulging portion 11 is pressed by the operator's pressing operation, the movable contact member 10 reverses the bulging portion 11 and returns to the state before the pressing operation when the pressing is released. ing.

  Thereby, when the bulging part 11 of the movable contact member 10 is pressed and reversed, the projecting part 11t suppresses the spread of the bulging part 11 in the short direction SD. For this reason, it is possible to reduce the concentration of internal stress (tensile stress pulled toward the longitudinal direction LD) at the outer peripheral end portion S1 in the short direction SD. As a result, defects such as cracks at the outer peripheral end S1 in the short direction SD are reduced, and a longer life can be achieved. In addition, in the push switch 200 of 2nd Embodiment of this invention, since the movable contact member 10 demonstrated in detail by 1st Embodiment is used, detailed description of the further movable contact member 10 is abbreviate | omitted.

  Next, the case 2 of the push switch 200 is manufactured by injection molding using a synthetic resin, which is an insulating material. As shown in FIG. 9, the case 2 is viewed in plan view from the upper side (Z1 side shown in FIG. 9). Thus, the outer shape is formed in a rectangular shape, and one is formed in a box shape having an accommodating portion 2s opened. And the space of the accommodating part 2s is formed by the inner bottom face 2b of the case 2 and the side wall 2w erected on the outer periphery of the case 2, and the movable contact member 10 can be accommodated. Note that as the synthetic resin, a dark-colored material such as black that does not easily transmit light is used.

  9, the first fixed contact member 13 and the second fixed contact member 23 exposed to the housing portion 2 s and the first fixed contact member 23 exposed to the outside of the case 2 are disposed. The 1 terminal portion 14 and the second terminal portion 24 are fixed. Further, the top surface 2u of the side wall 2w located on the upper surface side of the case 2 on the opening side of the housing portion 2s has a flat shape without a step, and when the sheet member 25 is placed, The upper surface (specifically, the top surface 2u) comes into close contact with the lower surface of the sheet member 25 (a flange portion 25v described later). Further, at the four corners of the case 2, there are formed step portions 2r recessed downward with respect to the top surface 2u, and an adhesive (not shown) is disposed on the step portions 2r.

  Next, the first fixed contact member 13 and the second fixed contact member 23 of the push switch 200 are made of a conductive metal material, and as shown in FIG. Are provided at the center of the inner bottom surface 2b, and two second fixed contact members 23 are provided at the outer edge of the inner bottom surface 2b in the longitudinal direction LD.

  Further, as shown in FIG. 9, the first fixed contact member 13 is provided with three convex portions 13 t protruding upward, and the movable contact member 10 is disposed in the housing portion 2 s of the case 2. The convex portion 13t faces the top portion of the bulging portion 11 of the movable contact member 10 and can contact and separate from the top portion. Similarly, the two second fixed contact members 23 are each provided with two projecting portions 23t protruding upward (four in total), and the movable contact member 10 is provided in the housing portion 2s of the case 2. When this is arranged, the convex portion 23 t comes into contact with the leg portion 51 of the movable contact member 10.

  Then, when the bulging portion 11 of the movable contact member 10 repeats the reversing operation, the first fixed contact member 13 (convex portion 13t) and the top of the bulging portion 11 of the movable contact member 10 repeat contact and separation. Become. On the other hand, the second fixed contact member 23 and the leg portion 51 of the movable contact member 10 are always kept in contact with each other even if the bulging portion 11 is repeatedly reversed. Since the first fixed contact member 13 is provided on the inner bottom surface 2b that is one step lower than the inner bottom surface 2b on which the second fixed contact member 23 is provided, the first fixed contact member that contacts and separates from the movable contact member 10 is provided. The contact surface 13 is positioned lower than the contact surface of the second fixed contact member 23 that is always in contact with the movable contact member 10, that is, below. Thereby, a longer reversal distance, that is, a longer operation stroke, in the movable contact member 10 can be ensured.

  Next, the first terminal portion 14 and the second terminal portion 24 of the push switch 200 are electrically insulated from each other, a part thereof is embedded in the case 2, and an end portion is exposed to the outside of the case 2. Arranged. The first terminal portion 14 is connected to the first fixed contact member 13 in the case 2 (internal bottom surface 2b), and the second terminal portion 24 is second fixed in the case 2 (internal bottom surface 2b). The contact member 23 is connected. The first terminal portion 14 and the second terminal portion 24 enable electrical connection between the push switch 200 and an external device.

  In the second embodiment of the present invention, the first terminal portion 14 and the first fixed contact member 13 are integrally formed, and the second terminal portion 24 and the second fixed contact member 23 are integrally formed. Is formed. And after the 1st terminal part 14 and the 1st fixed contact member 13, the 2nd terminal part 24, and the 2nd fixed contact member 23 are using a metal plate and giving cutting processing, bending processing, etc., Insert molding is performed when the case 2 is injection molded.

  Next, the sheet member 25 of the push switch 200 is made of a synthetic resin film having translucency. As shown in FIG. 9, the outer shape of the sheet member 25 is shown in plan view from the upper side (Z1 direction side shown in FIG. 9). Is formed in a rectangular shape. Further, as shown in FIG. 9, the sheet member 25 includes a dome-shaped dome portion 25d having a central portion protruding upward, and a flange portion 25v formed around the dome portion 25d and continuing to the dome portion 25d. Has been. Further, the sheet member 25 has a size capable of covering the opening of the housing portion 2 s in plan view, and is formed so as to substantially match the outer shape of the case 2. It is formed in a shape that fits inside.

  When the push switch 200 is assembled, the sheet member 25 is disposed (placed) on the upper surface side of the case 2 so as to cover the accommodating portion 2s, and the flange portion 25v of the sheet member 25 and the case 2 are disposed. The top surface 2u is in close contact. Then, by irradiating the top surface 2 u with laser light from the sheet member 25 side, the top surface 2 u of the case 2 and the flange portion 25 v of the sheet member 25 are welded, and the sheet member 25 is fixed to the case 2. At that time, an adhesive (not shown) is positioned at the stepped portions 2r at the four corners of the case 2 on the back side of the sheet member 25, and the adhesive is the sheet member 25 in the laser welding process. It plays the role of temporary fixing. In the second embodiment of the present invention, since the case 2 and the sheet member 25 are welded by irradiating laser light, the synthetic resin used for the case 2 is a dark-colored system such as black that does not easily transmit light. The synthetic resin used for the sheet member 25 is made of a translucent material that transmits laser light.

  Lastly, the pusher member 8 of the push switch 200 is made of a dark synthetic resin material such as black, which is difficult to transmit light, and is formed in a hemispherical shape as shown in FIG. The pusher member 8 is disposed inside the dome portion 25d of the sheet member 25, the sheet member 25 and a part of the hemispherical surface of the pusher member 8 are welded, and the pusher member 8 becomes the sheet member 25. Fixed to. In addition, this welding is performed by irradiating the laser beam from the sheet member 25 side similarly to the welding of the case 2 and the sheet member 25. Further, in methods other than laser beam welding, for example, ultrasonic welding may be used.

  Further, when the push switch 200 is assembled, the pusher member 8 is disposed at a position facing the top of the bulging portion 11 of the movable contact member 10, and receives the pressing operation by the operator to move the movable contact. It is comprised so that the top part of the member 10 may be pressed. Since the pusher member 8 is provided, the reversing operation of the movable contact member 10 can be performed stably and reliably.

  Since the push switch 200 according to the second embodiment of the present invention configured as described above uses the movable contact member 10 according to the first embodiment, it is a switch device capable of extending the life. This is because when the bulging portion 11 of the movable contact member 10 is pressed and reversed, the projecting portion 11t of the movable contact member 10 suppresses the spread of the bulging portion 11 in the short direction SD. The concentration of internal stress (tensile stress pulled toward the longitudinal direction LD) at the outer peripheral end S1 in the direction SD is reduced. For this reason, defects such as cracks at the outer peripheral end S1 of the movable contact member 10 are reduced. Since the movable contact member 10 has a long life, as a result, the push switch 200 can have a long life.

  In addition, since the push switch 200 uses the movable contact member 10 of the first embodiment, the entire operation (longitudinal direction SD) is reduced and the size is reduced while extending the life, and the operation becomes longer. The switch device can secure a stroke. This is because the movable contact member 10 has a bulged portion 11 having a larger outer shape and a notch 11k formed in a part of the outer periphery in the short direction SD. It can be an operating stroke. On the other hand, when the notched portion 11k is provided in the bulged portion 11 in the short direction SD, the internal stress (tensile stress) at the outer peripheral end S1 in the short direction SD is applied by the notched portion 11k. This is because the concentration of internal stress (tensile stress) in the notch portion 11k can be reliably reduced in the present invention having the shape portion 11t.

  Below, operation | movement of the push switch 200 is demonstrated easily, without using drawing. First, in the state before the operation, the push switch 200 is separated from the top portion of the movable contact member 10 and the first fixed contact member 13 (convex portion 13t) and from the leg portion 51 of the movable contact member 10 and the first portion. 2 The fixed contact member 23 (projection 23t) is in contact. Thereby, the first fixed contact member 13 and the second fixed contact member 23 are not electrically connected.

  Next, when a pressing operation is performed by the operator, the movable contact member 10 is pressed downward through the sheet member 25 and the pusher member 8, and the movable contact member 10 pressed near the top is moved downward. After bending, the bulging portion 11 performs a reverse operation. Then, the back side of the top of the bulging portion 11 comes into contact with the first fixed contact member 13. As a result, when the movable contact member 10 and the first fixed contact member 13 come into contact with each other, the first fixed contact member 13 and the second fixed contact member 23 are electrically connected via the movable contact member 10. .

  Next, when the pressing operation by the operator is released, the pressing on the movable contact member 10 is released, and the movable contact member 10 returns to the original dome shape by the repulsive force of the movable contact member 10. Then, the push switch 200 returns to the state before the operation, and the first fixed contact member 13 and the second fixed contact member 23 are not electrically connected. As described above, the push switch 200 is operated by pressing the movable contact member 10 to switch the electrical connection state between the first fixed contact member 13 and the second fixed contact member 23 (ON / OFF). Function as.

  The effects of the push switch 200 using the movable contact member 10 according to the second embodiment of the present invention configured as described above will be described below.

  Since the push switch 200 according to the second embodiment of the present invention uses the movable contact member 10 of the first embodiment, when the bulging portion 11 of the movable contact member 10 is pressed and reversed, it has a protruding shape. The portion 11t reduces the concentration of internal stress (tensile stress pulled toward the longitudinal direction LD) at the outer peripheral end S1 in the short direction SD of the movable contact member 10. For this reason, problems such as cracks at the outer peripheral end S1 of the movable contact member 10 are reduced, and a switch device that can extend the life can be provided.

  In addition, since the movable contact member 10 of the first embodiment is used, the overall width of the bulging portion 11 having a larger outer shape and the notch portion 11k formed in a part of the outer periphery in the short direction SD is reduced. (Short direction SD) A longer operating stroke is ensured by reducing the size and reducing the size, and the concentration of internal stress (tensile stress) in the notch portion 11k is reliably reduced by the projecting portion 11t. For this reason, it is possible to provide a switch device that can ensure a longer operation stroke, reduce defects such as cracks in the outer circumferential end S1 in the short direction SD, and extend the service life.

[Third Embodiment]
Next, a sheet switch 300 that is a switch device using the movable contact member 10 according to the first embodiment of the present invention will be described. FIG. 10 is a perspective view of a seat switch 300 according to the third embodiment of the present invention. FIG. 11 is a diagram for explaining a sheet switch 300 according to the third embodiment of the present invention. FIG. 11A is a top view of the sheet switch 300 as viewed from the Z1 side shown in FIG. 11 (b) is a side view of the sheet switch 300 as viewed from the X1 side shown in FIG. 12A is a cross-sectional view taken along line XI-XI shown in FIG. 11A, and FIG. 12B is a cross-sectional view taken along line XII-XII shown in FIG. FIG. 13 is a rear view of the sheet member 35 as viewed from the Z2 side of the P portion shown in FIG. FIG. 13 shows a state where the movable contact member 10 is held. 14A is a top view of the sheet substrate 9 viewed from the Z1 side of the P portion shown in FIG. 11A, and FIG. 14B is the Z2 side of the Q portion shown in FIG. 11A. It is the bottom view of the sheet | seat board | substrate 9 seen from. In addition, about the same structure as 1st Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  The sheet switch 300 according to the third embodiment of the present invention has a rectangular sheet-like appearance as shown in FIGS. 10 and 11, and, as shown in FIG. 12, a movable contact member 10 that can be reversed by a pressing operation. The sheet member 35 holding the movable contact member 10, the sheet substrate 9 disposed to face the sheet member 35, the first fixed contact member 33 and the second fixed contact provided on one surface 9 a of the sheet substrate 9. A contact member 43, a first terminal portion 34 (see FIG. 14B) electrically connected to the first fixed contact member 33, and a second terminal portion 44 electrically connected to the second fixed contact member 43. (See FIG. 14B). When the sheet switch 300 is assembled, the plurality of movable contact members 10 are held by the sheet member 35 so that the movable contact member 10 faces the first fixed contact member 33 and the second fixed contact member 43. Further, the sheet member 35 is mounted on the sheet substrate 9. In the third embodiment of the present invention, each of the first fixed contact member 33, the second fixed contact member 43, and the movable contact member 10 is provided.

  Next, each structure mentioned above is demonstrated in detail. First, the movable contact member 10 of the sheet switch 300 uses the movable contact member 10 described in detail in the first embodiment, and as shown in FIG. 1, the central portion is upward (Z1 direction shown in FIG. 1). A bulging portion 11 bulging in a dome shape and two leg portions 51 provided on both ends facing each other across the bulging portion 11 and supporting the bulging portion 11 are configured. Further, the movable contact member 10 is provided with two protruding portions 11t extending along the longitudinal direction LD with the central portion in the short direction SD interposed therebetween. The protrusion 11t protrudes to the side where the bulging portion 11 bulges when viewed in a longitudinal section along the short direction SD. When the bulging portion 11 is pressed by the operator's pressing operation, the movable contact member 10 reverses the bulging portion 11 and returns to the state before the pressing operation when the pressing is released. ing.

  Thereby, when the bulging part 11 is pressed and reversed, the projecting part 11t suppresses the spread of the bulging part 11 in the short direction SD. For this reason, it is possible to reduce the concentration of internal stress (tensile stress pulled toward the longitudinal direction LD) at the outer peripheral end portion S1 in the short direction SD. As a result, defects such as cracks at the outer peripheral end S1 in the short direction SD are reduced, and a longer life can be achieved. In addition, in the sheet switch 300 of 3rd Embodiment of this invention, since the movable contact member 10 demonstrated in detail in 1st Embodiment is used, detailed description of the movable contact member 10 is abbreviate | omitted.

  Next, the sheet member 35 of the sheet switch 300 is produced by laminating synthetic resin sheet materials, and has a circular shape that can be accommodated up to the legs 51 of the movable contact member 10 as shown in FIG. A spacer 5S having a plurality of holes, a circular holding sheet 5H that holds the movable contact member 10, and a cover sheet 5C that covers the spacer 5S and the holding sheet 5H are configured. The sheet member 35 is mounted on the sheet substrate 9 such that the inner surface (concave surface) of the movable contact member 10 faces the one surface 9 a of the sheet substrate 9.

  The spacer 5S of the sheet member 35 is formed into a sheet by injection molding using polycarbonate resin (PC, Polycarbonate) or the like. As shown in FIG. 13, the circular through hole and the through holes described above are formed. It has a connected through hole. The through hole is a escape hole for gas (air) pushed out by reversal of the movable contact member 10. The spacer 5S is provided with an adhesive layer (not shown), and the spacer 5S is attached to the sheet substrate 9 by this adhesive layer.

  The holding sheet 5H of the sheet member 35 uses a film material provided with an adhesive layer (not shown) on one side, such as polyethylene terephthalate resin (PET), and has a circular shape and is larger than the movable contact member 10. It is made with an outer shape. Then, as shown in FIG. 12, the plurality of holding sheets 5H corresponding to the plurality of movable contact members 10 are respectively disposed above the movable contact member 10 (Z1 direction shown in FIG. 12), and are movable by this adhesive layer. The contact member 10 is held.

  The cover sheet 5C of the sheet member 35 uses a film material such as polyethylene terephthalate resin (PET), and is drawn so as to have a circular shape and a dome shape that is larger than the movable contact member 10 as shown in FIG. Is made. Moreover, the adhesive layer which is not shown in figure is provided in the single side | surface of 5 C of cover sheets. As shown in FIG. 12, the cover sheet 5C is disposed above the spacer 5S and the holding sheet 5H (in the Z1 direction shown in FIG. 12), and is adhered to the spacer 5S and the holding sheet 5H by this adhesive layer. Yes. As a result, the movable contact member 10 is sandwiched between the sheet member 35 and the sheet substrate 9.

  Next, the sheet substrate 9 of the sheet switch 300 uses a so-called double-sided printed wiring board (PWB, printed wiring board) having wiring patterns on both sides, as shown in FIG. A first fixed contact member 33 and a second fixed contact member 43 are provided on the one surface 9a side, and as shown in FIG. 14B, the first terminal portion 34 and the second fixed contact member 43 are provided on the other surface 9z side. A two-terminal portion 44 is provided. Note that a double-sided flexible printed circuit board (FPC, Flexible printed circuits) may be used as the sheet substrate 9.

  Next, the first fixed contact member 33 and the second fixed contact member 43 of the sheet switch 300 are formed using a part of the sheet substrate 9, and as shown in FIG. A combination of an oval pattern as the member 33 and a horseshoe pattern as the second fixed contact member 43 is provided for each of the plurality of movable contact members 10. When the sheet member 35 is mounted on the sheet substrate 9, the first fixed contact member 33 is disposed so as to be able to contact and separate from the top of the bulging portion 11 of the movable contact member 10, and the second fixed contact. The member 43 is disposed in contact with the leg portion 51 of the movable contact member 10. Thereby, when the bulging part 11 of the movable contact member 10 repeats the reversing operation, the first fixed contact member 33 and the top part of the bulging part 11 of the movable contact member 10 repeat contact and separation. On the other hand, the second fixed contact member 43 and the leg portion 51 of the movable contact member 10 are always kept in contact with each other even if the inverting operation of the bulging portion 11 is repeated.

  Finally, the first terminal portion 34 and the second terminal portion 44 of the sheet switch 300 are formed so as to be electrically insulated from each other using a part of the sheet substrate 9, as shown in FIG. Further, it is provided on the other surface 9 z side of the sheet substrate 9. Although not shown in detail, the first terminal portion 34 is connected to the first fixed contact member 33 by the through hole 9h provided in the sheet substrate 9, and the second terminal portion 44 is second. The fixed contact member 43 is connected. The first terminal portion 34 and the second terminal portion 44 allow electrical connection between the seat switch 300 and an external device.

  Since the seat switch 300 according to the third embodiment of the present invention configured as described above uses the movable contact member 10 according to the first embodiment, it is a switch device that can extend the life. This is because when the bulging portion 11 of the movable contact member 10 is pressed and reversed, the projecting portion 11t of the movable contact member 10 suppresses the spread of the bulging portion 11 in the short direction SD. The concentration of internal stress (tensile stress pulled toward the longitudinal direction LD) at the outer peripheral end S1 in the direction SD is reduced. For this reason, defects such as cracks at the outer peripheral end S1 of the movable contact member 10 are reduced. Since the life of the movable contact member 10 is extended, as a result, the life of the sheet switch 300 can be extended.

  Below, operation | movement of the sheet switch 300 is demonstrated easily, without using drawing. First, in a state before the operation, the seat switch 300 is separated from the top of the movable contact member 10 and the first fixed contact member 33, and the leg portion 51 of the movable contact member 10 and the second fixed contact member 43. Are in contact. Thereby, the first fixed contact member 33 and the second fixed contact member 43 are not electrically connected.

  Next, when a pressing operation is performed by the operator, the movable contact member 10 is pressed downward via the sheet member 35, and the movable contact member 10 pressed near the top portion is swelled after being bent downward. The exit portion 11 performs a reverse operation. Then, the back side of the top of the bulging portion 11 comes into contact with the first fixed contact member 33. As a result, the movable contact member 10 and the first fixed contact member 33 come into contact with each other, whereby the first fixed contact member 33 and the second fixed contact member 43 are electrically connected via the movable contact member 10. .

  Next, when the pressing operation by the operator is released, the pressing on the movable contact member 10 is released, and the movable contact member 10 returns to the original dome shape by the repulsive force of the movable contact member 10. Then, the seat switch 300 returns to the state before the operation, and the first fixed contact member 33 and the second fixed contact member 43 are not electrically connected. As described above, by pressing the movable contact member 10 and switching the electrical connection state between the first fixed contact member 33 and the second fixed contact member 43 (ON / OFF), the sheet switch 300 is switched to Function as.

  The effects of the seat switch 300 using the movable contact member 10 according to the third embodiment of the present invention configured as described above will be described below.

  Since the seat switch 300 according to the third embodiment of the present invention uses the movable contact member 10 of the first embodiment, when the bulging portion 11 of the movable contact member 10 is pressed and inverted, the movable contact member 10 is used. Concentration of internal stress (tensile stress pulled toward the longitudinal direction LD side) at the outer peripheral end S1 in the short direction SD of the member 10 can be reduced, and defects such as cracks at the outer peripheral end S1 are reduced, thereby extending the life. A switch device that can be realized can be provided.

  In addition, this invention is not limited to the said embodiment, For example, it can deform | transform and implement as follows, These embodiments also belong to the technical scope of this invention.

  FIG. 15 is a view for explaining a modification of the movable contact member 10 according to the first embodiment of the present invention, and FIG. 15A is a top view of the movable contact member C10 of the modification 2. FIG. 15 (b) is a top view of the movable contact member D10 of Modification 3. FIG.

<Modification 1>
In the first embodiment, the projecting portion 11t is preferably formed by extending the two leg portions 51. However, at least the projecting portion 11t may be provided on the bulging portion 11, for example, bulging. The structure provided only in the part 11 may be sufficient.

<Modification 2>
In the first embodiment, the two leg portions 51 are provided on the sides facing each other with the bulging portion 11 interposed therebetween. However, the present invention is not limited to this. For example, as shown in FIG. Two leg portions C51 and a total of four leg portions C51 may be provided on opposite sides of the protruding portion 11, or a larger number may be provided. .

<Modification 3>
In the first embodiment, the bulging portion 11 is preferably configured to be provided with the notch portion 11k. For example, as shown in FIG. 15B, the outer side of the bulging portion D11 on the short side SD side Alternatively, the side portion D71 may be provided and the notched portion 11k may not be provided.

<Modification 4><Modification5>
In the said 2nd Embodiment, in order to perform the reversing operation | movement of the movable contact member 10 stably and reliably, it was set as the structure which used the pusher member 8 suitably, However, The structure which is not necessarily used may be sufficient (modification 4). Moreover, the structure which provides the operation member which an operator operates above the sheet | seat member 25 may be sufficient (modification 5).

<Modification 6>
In the third embodiment, the first fixed contact member 33, the second fixed contact member 43, and the 20 movable contact members 10 are provided. However, the number is not limited to this, and at least many. Also good.

<Modification 7>
In the third embodiment, the fixed contact is configured by the combination of the first fixed contact member 33 having an oval pattern and the second fixed contact member 43 having a horseshoe pattern. However, the present invention is not limited thereto. The fixed contact may be configured by a combination of a shape pattern and a circular pattern.

<Modification 8>
As a switch device using the movable contact member 10 according to the first embodiment of the present invention, the push switch 200 in the second embodiment and the seat switch 300 in the third embodiment have been described in detail. It is not limited to. For example, the switch device may be a slide switch or a seesaw switch.

  The present invention is not limited to the above-described embodiment, and can be modified as appropriate without departing from the scope of the object of the present invention.

10, C10, D10 Movable contact member 11, D11 bulging portion 11k cutout portion 11t protruding portion 51, C51 leg portion 91 connecting portion 13, 33 first fixed contact member 23, 43 second fixed contact member 14, 34 first Terminal portions 24, 44 Second terminal portion 200 Push switch 300 Sheet switch B1 Base member C1 Bending member D1 Drawing member P1 Outline processing step P2 Bending step P3 Drawing step P4 Cutting step LD Longitudinal direction SD Short direction

Claims (6)

A dome-shaped bulging portion that can be reversed by bulging and a plurality of legs that support the bulging portion, and a movable contact member having an outer shape having a short side direction and a long side direction. There,
The plurality of leg portions are each provided at least one on each side facing the bulging portion in the longitudinal direction in plan view,
The bulging portion has a projecting portion that protrudes toward the bulging side in a longitudinal cross-sectional view along the short direction,
The movable contact member is characterized in that the projecting portions are provided in two locations extending along the longitudinal direction and sandwiching the central portion in the lateral direction.   The movable contact member according to claim 1, wherein the bulging portion includes a cutout portion that forms a part of the outer periphery in the short-side direction.   3. The movable contact member according to claim 1, wherein the projecting portion is formed in line symmetry with respect to the central portion in the short direction. A movable contact member having a dome-like bulging portion that can be reversed by bulging and a plurality of legs that support the bulging portion, and whose outer shape has a short direction and a long direction. A manufacturing method comprising:
An outer shape processing step of forming a plate-like base member having the short side direction and the long side direction while leaving a connecting portion from a sheet-like metal material,
A bending step of forming the bending member by bending the base member so as to protrude to one side along the longitudinal direction intersecting the central portion in the short direction;
A drawing member is formed by constricting the bending member so as to bulge in the dome shape toward the one side with the central portion in the short direction and the longitudinal direction as a center in plan view. Drawing process;
A cutting step for cutting the joint portion connected to the drawing member in accordance with the outer shape, and
In the drawing step, the bulging portion is formed, and a protruding portion that protrudes toward the bulging side extends along the longitudinal direction and sandwiches the central portion in the lateral direction at two locations. The manufacturing method of the movable contact member characterized by the above-mentioned.   5. The method of manufacturing a movable contact member according to claim 4, wherein, in the outer shape processing step, the connecting portion is provided in connection with the central portion of the leg portion in the lateral direction. The movable contact member according to any one of claims 1 to 3,
A first fixed contact member that can contact and separate from the top of the bulging portion of the movable contact member;
A second fixed contact member in contact with the leg of the movable contact member;
A first terminal portion electrically connected to the first fixed contact member;
A switch device comprising: a second terminal portion electrically connected to the second fixed contact member.