WO2021220979A1 - Interrupteur - Google Patents

Interrupteur Download PDF

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Publication number
WO2021220979A1
WO2021220979A1 PCT/JP2021/016521 JP2021016521W WO2021220979A1 WO 2021220979 A1 WO2021220979 A1 WO 2021220979A1 JP 2021016521 W JP2021016521 W JP 2021016521W WO 2021220979 A1 WO2021220979 A1 WO 2021220979A1
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WO
WIPO (PCT)
Prior art keywords
key top
spring member
switch
convex portion
bulging
Prior art date
Application number
PCT/JP2021/016521
Other languages
English (en)
Japanese (ja)
Inventor
真輔 渡邊
Original Assignee
シチズン電子株式会社
シチズン時計株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by シチズン電子株式会社, シチズン時計株式会社 filed Critical シチズン電子株式会社
Publication of WO2021220979A1 publication Critical patent/WO2021220979A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/58—Optical field-shaping elements
    • H01L33/60—Reflective elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls

Definitions

  • the present invention relates to a switch.
  • the first link member arranged so as to support the key top so as to be crossed in an X shape.
  • a key switch having a second link member and a guide member also called a scissor structure for guiding the vertical movement of the key top is known.
  • the key top moves uniformly in the vertical direction parallel to the stretching direction of the surface of the substrate due to the scissor structure regardless of the pressing position of the key top, so that the pressing surface of the key top is pressed. It can be maintained in a direction orthogonal to the direction.
  • the key switch described in the above document may increase the manufacturing cost due to the increase in the number of parts.
  • An object of the present invention is to provide a switch that can maintain the pressing surface of a key top in a direction orthogonal to the pressing direction when pressed and can be manufactured at a lower manufacturing cost.
  • the switches disclosed herein have a substrate having contacts and a bulge that bulges in the direction opposite to the substrate, and are arranged on the substrate so as to press the contacts when the bulge reverses.
  • a spring member a flat plate-shaped base having a pressing surface opposite to the surface facing the substrate, and a key top having a protruding portion protruding parallel to the extending direction of the pressing surface from the outer edge of the base, and the spring member.
  • the key top has a case member that extends parallel to the extending direction of the surface of the substrate from the surrounding wall portion and the inner wall of the wall portion and has an eaves portion in which the lower surface contacts the protruding portion. While doing so, it keeps in contact with the spring member.
  • the key top further has a convex portion arranged in a region facing the bulging portion on the surface opposite to the pressing surface of the base.
  • the spring member further has a convex portion arranged in the bulging portion.
  • the convex portion is arranged so as to face the vicinity of the outer edge of the bulging portion.
  • the convex portion distance which is the distance between the convex portion position, which is the position of the bulging portion facing the convex portion, and the center of the bulging portion, is the outer edge of the bulging portion and the center of the bulging portion. It is preferably longer than half the bulge diameter and shorter than the bulge diameter, which is the distance between them.
  • the convex portion distance is preferably longer than 3/4 times the bulging diameter.
  • the spring member further has a support portion having a flat plate shape located outside the bulging portion and in contact with the surface of the substrate.
  • the case member further has a recess for accommodating the support portion at the lower end of the wall portion.
  • the spring member further has a flat plate portion extending from the periphery of the bulging portion and a leg portion extending from the support portion toward the flat plate portion.
  • the substrate has a rectangular planar shape
  • the recesses of the case member are arranged at each of the four corners of the substrate
  • the spring member extends toward each of the four corners of the substrate4. It is preferable to have one leg and four supports housed in the recess.
  • a dome material which is an elastic member arranged between the substrate and the spring member so as to cover the contacts.
  • the spring member further has a pressing portion that protrudes from the bulging portion toward the contact point.
  • the spring member has a top opening formed at the top of the bulging portion, and the key top further has an engaging portion penetrating the top opening.
  • the substrate has a membrane sheet on which contacts are formed.
  • the convex portion protrudes in the same direction as the bulging portion bulges.
  • the key top contacts the spring member at a portion different from the portion that contacts the spring member after the bulging portion reverses and before the bulging portion reverses.
  • the spring member further has a flat plate portion arranged along the outer edge of the bulging portion, and before the bulging portion reverses, the key top is in contact with the bulging portion and the bulging portion is formed. After the reversing operation, the key top is preferably in contact with the flat plate portion.
  • the key top further has a first convex portion that presses the bulge portion before the bulge portion reverses, and a second convex portion that presses the flat plate portion after the bulge reverses. It is preferable to have.
  • the spring member further has a first convex portion arranged on the bulging portion and a second convex portion arranged on the flat plate portion.
  • the first convex portion and the second convex portion project in the same direction as the bulging portion bulges.
  • the switch disclosed in the present specification has a substrate having contacts and a bulging portion that bulges in the direction opposite to the substrate, and is arranged on the substrate so as to press the contacts when the bulging portion reverses.
  • a flat plate-shaped base having a pressing surface opposite to the surface facing the substrate, a protruding portion protruding parallel to the extending direction of the pressing surface from the outer edge of the base, and a spring facing the spring member.
  • a key top having a convex portion arranged apart from the member, a wall portion surrounding the spring member, and an eaves portion extending parallel to the extending direction of the surface of the substrate from the inner wall of the wall portion and having a lower surface in contact with the protruding portion.
  • the key top contacts the spring member at a portion other than the convex portion before the bulging portion reverses, and contacts the spring member at the convex portion after the bulging portion reverses.
  • FIG. 1A It is a perspective view of the switch 1. It is a top view of the switch 1 shown in FIG. 1A. It is a top view of the state in which the key top is removed from the switch 1 shown in FIG. 1A. It is sectional drawing of the switch 1 along the line AA shown in FIG. 1B. It is sectional drawing of the switch along the line BB shown in FIG. 1B. It is a partially enlarged view of the part surrounded by the broken line C shown in FIG. 2B. It is an exploded perspective view of the switch 1. It is an exploded perspective sectional view of the switch 1. It is a perspective view of the spring member shown in FIG. 3A. It is a perspective view of the key top shown in FIG. 3A.
  • FIG. 3A It is a figure which shows the arrangement relationship between the bulging part and the convex part shown in FIG. 3A. It is a figure which shows the 1st state of the switch 1 when the vicinity of the corner of a key top is pressed. It is a figure which shows the 2nd state of the switch 1 when the vicinity of the corner of a key top is pressed. It is a figure (No. 1) which shows typically the operation of the switch 1 when the vicinity of the corner of a key top is pressed. It is a figure (No. 2) which shows typically the operation of the switch 1 when the vicinity of the corner of a key top is pressed.
  • FIG. 3 is a diagram schematically showing the operation of the switch 1 when the vicinity of the corner of the key top is pressed (No. 3).
  • FIG. 2 is a cross-sectional view of the switch 3. It is a partially enlarged view of the portion surrounded by the broken line G shown in FIG. 13B. It is a perspective view of the spring member shown in FIG. 13A.
  • FIG. 13A is a plan view of the spring member shown in FIG. 13A. It is a partial cross-sectional view of the switch 4. It is a perspective view of the switch 5. It is a top view of the switch 5 shown in FIG. 16A.
  • FIG. 16A It is a top view of the state in which the key top is removed from the switch 5 shown in FIG. 16A. It is sectional drawing of the switch along the line AA shown in FIG. 16B. It is sectional drawing of the switch along the line BB shown in FIG. 16B. It is a partially enlarged view of the part surrounded by the broken line C shown in FIG. 17B. It is an exploded perspective view of the switch 5. It is an exploded perspective sectional view of the switch 5 shown in FIG. 18A. It is a perspective view of the key top shown in FIG. 18A. It is a figure which shows the arrangement relationship between the bulging part and the convex part shown in FIG. 18A.
  • FIG. 2 is a cross-sectional view of the switch 7. It is a partially enlarged view of the part surrounded by the broken line G shown in FIG. 25B. It is a partial cross-sectional view of the switch 8. It is a partial cross-sectional view of the switch 9. It is a partial cross-sectional view of the switch 10. It is a perspective view of the key top 130a. It is a perspective view of the key top 130b.
  • FIG. 1A is a perspective view of the switch 1 according to the first embodiment
  • FIG. 1B is a plan view of the switch 1 shown in FIG. 1A
  • FIG. 1C is a plan view of the switch 1 shown in FIG. 1A with the key top removed.
  • FIG. 2A is a cross-sectional view of the switch 1 along the line AA shown in FIG. 1B
  • FIG. 2B is a cross-sectional view of the switch along the line BB shown in FIG. 1B
  • FIG. 2C is a broken line C shown in FIG. 2B.
  • 3A is an exploded perspective view of the switch 1 shown in FIG. 1A
  • FIG. 3B is an exploded perspective sectional view of the switch 1 shown in FIG. 1A.
  • the switch 1 has a substrate 10, a spring member 20, a key top 30, and a case member 40.
  • the substrate 10 has a base material 11, a membrane sheet 12, and a contact 13.
  • the base material 11 is a substrate formed of an insulating material such as glass epoxy, ceramic, or synthetic resin.
  • the membrane sheet 12 is a thin film formed of a flexible resin material such as a polyester film, and has a cross-shaped planar shape.
  • a spring member 20 is arranged on the four surfaces 110 of the base material 11 that are not covered by the membrane sheet 12. In the present embodiment, the spring member 20 is arranged on the surface 110, but the surface 110 may not be arranged and may be arranged on the substrate.
  • the contact 13 is a pair of circular planar conductive members formed by conductive inks such as silver paste and carbon paste, and is arranged at the center of the base material 11.
  • the contact 13 is connected to an electrode (not shown) arranged on the bottom surface of the switch 1 or the like via a wiring pattern formed inside the membrane sheet 12 with conductive ink.
  • FIG. 4 is a perspective view of the spring member 20.
  • the spring member 20 is a flexible metal member and has four support portions 21, four leg portions 22, a flat plate portion 23, and a bulge portion 24.
  • the support portions 21 to be formed by punching.
  • the bulging portion 24 is integrally molded.
  • Each of the four support portions 21 has a flat plate shape located outside the four leg portions 22, the flat plate portion 23, and the bulging portion 24 and in contact with the surface of the substrate 10.
  • Each of the four support portions 21 is arranged on the four surfaces 110 of the base material 11 which is not covered by the membrane sheet 12.
  • the spring member 20 is arranged on the surface 110, but the surface 110 may not be arranged and may be arranged on the substrate.
  • Each of the four leg portions 22 is inclined from one end of each of the four support portions 21 from the extending direction of the four support portions 21, and extends from each of the four support portions 21 toward the outer edge of the flat plate portion 23. It is a flat plate.
  • the flat plate portion 23 has a substantially ring-shaped planar shape, and is arranged along the outer edge of the bulging portion 24 in parallel with the stretching direction of the substrate 10 and the four support portions 21.
  • the bulging portion 24 has a dome-shaped shape that bulges from the inner edge of the flat plate portion 23 in the direction opposite to the support portion 21 and the leg portion 22.
  • the stretching direction of the spring member 20 changes from the horizontal direction, which is the stretching direction of the flat plate portion 23, to the inclined direction, which is the stretching direction of the bulging portion 24.
  • the bulging portion 24 has a circular planar shape.
  • the bulging portion 24 has a fan-shaped planar shape, and four fan-shaped openings 26 arranged in an arc shape and a circular top opening 27 formed at the top of the bulging portion 24 are formed.
  • FIG. 5 is a perspective view of the key top 30.
  • the key top 30 has a base portion 31, four projecting portions 32, an engaging portion 33, and a convex portion 34, and is integrally molded by injection processing, extrusion processing, or the like.
  • the key top 30 is arranged so as to cover the spring member 20.
  • the base portion 31 has a substantially rectangular planar shape, a wall portion extends from each side, and a protruding portion 32 is arranged at each of the four corners.
  • the surface of the base 31 opposite to the surface facing the substrate 10 is a pressing surface 35 pressed by an operator who operates the switch 1.
  • the four projecting portions 32 project from the corners of the base portion 31 in the extending direction of the diagonal line of the base portion 31 and parallel to the extending direction of the pressing surface 35.
  • the four protrusions 32 are arranged so that the position of the front surface in the height direction is lower than that of the pressing surface 35 and substantially coincides with the position of the back surface of the base portion 31 in the height direction.
  • the engaging portion 33 is a columnar protrusion and is arranged at the center of the back surface of the base portion 31.
  • the engaging portion 33 is engaged with the top opening 27 to join the spring member 20 and the key top 30.
  • the engaging portion 33 is engaged with the top opening 27 by penetrating the engaging portion 33 so as to be movable through the top opening 27.
  • penetrating the engaging portion 33 through the top opening 27 so as to be movable and engaging the engaging portion 33 the bulging portion 24 of the spring member 20 can reversely operate when the pressing surface 35 is pressed.
  • the switch 1 can realize a good click feeling. Further, by passing the engaging portion 33 through the top opening 27, the positional relationship between the spring member 20 and the key top 30 is determined.
  • the convex portion 34 is a ring-shaped protruding portion, and is arranged on the back surface of the base portion 31 so as to be centered on the engaging portion 33.
  • the case member 40 has a wall portion 41, an eaves portion 42, and a recess 43, and is integrally molded by injection processing, extrusion processing, or the like.
  • the wall portion 41 has a frame-like planar shape whose outer shape matches the outer shape of the substrate 10, and its bottom surface is adhered to the substrate 10 via an adhesive member such as an adhesive sheet.
  • the eaves portion 42 extends from the upper ends of the inner walls at the four corners of the wall portion 41 in parallel with the stretching direction of the surface of the substrate so that the upper surface 44 forms the same plane as the upper surface of the wall portion 41.
  • the lower surface of the eaves portion 42 is in contact with each of the four protruding portions 32 of the key top 30 when the key top 30 is not pressed.
  • the recess 43 is located at the lower end of the wall portion 41, accommodates the support portion 21 of the spring member 20, and holds the spring member 20 between the substrate 10 and the case member 40.
  • FIG. 6 is a diagram showing the arrangement relationship between the bulging portion 24 and the convex portion 34.
  • the convex portion 34 is arranged so as to face the vicinity of the outer edge of the bulging portion 24. Since the convex portion 34 is in contact with the bulging portion 24, when the key top 30 is pressed, the convex portion 34 starts the reversing operation of the bulging portion 24.
  • the convex portion distance Lc which is the distance between the convex portion position which is the position of the bulging portion 24 facing the convex portion 34 and the center of the bulging portion 24, is the outer edge of the bulging portion 24 and the center of the bulging portion 24. It is longer than half (1 / 2Lr) of the bulge diameter Lr and shorter than the bulge diameter Lr, which is the distance between the two.
  • the convex portion distance Lc is preferably longer than 3/4 times the bulging diameter Lr. The closer the convex portion position, which is the position facing the convex portion 34, to the outer edge of the bulging portion 24, the more the convex portion 34 can continue to be in contact with the bulging portion 24 while the bulging portion 24 is pressed. A uniform pressing force can be continuously applied.
  • FIG. 7 is a diagram showing the operation of the switch 1 when the vicinity of the corner of the key top 30 is pressed, FIG. 7A shows the first state, and FIG. 7B shows the second state. 7A and 7B are cross-sectional views showing only the spring member 20, the key top 30, and the case member 40 among the cross sections taken along the line AA shown in FIG. 1B.
  • the pressed corner of the key top 30 is pressed while being pressed in response to the pressing of the vicinity of the corner of the key top 30.
  • the protruding portion 32 extending from the corner facing the corner of the key top 30 comes into contact with the eaves portion 42.
  • the protruding portion 32 extending from the angle facing the corner of the pressed key top 30 is a "fulcrum”
  • the corner of the pressed key top 30 is a "power point”
  • the key top 30 is The convex portion 34 that presses the bulging portion 24 in response to being pressed is the “point of action”.
  • the bulging portion 24 In response to the convex portion 34, which is the "point of action,” pressing the bulging portion 24, the bulging portion 24 is gradually pushed down to start the reversing operation.
  • the bulging portion 24 starts the reversing operation, the reversing operation gradually propagates from the vicinity of the portion where the convex portion 34, which is the "point of action", is in contact.
  • the spring member 20 includes the vicinity of the protruding portion 32, which was the “fulcrum” in the first state, and reverses over the entire bulging portion 24 to perform a convex portion.
  • the pressing surface 35 of the key top 30 supported by the bulging portion 24 via the 34 is returned to the direction orthogonal to the pressing direction.
  • FIG. 8 is a diagram schematically showing the operation of the switch 1 when the vicinity of the corner of the key top 30 is pressed.
  • FIG. 8A is a diagram corresponding to FIG. 7A.
  • the spring member 20 supports the key top 30 from below.
  • at the position indicated by E at least the convex portion 34 of the key top 30 is in contact with the spring member 20 as shown in FIG.
  • the key top 30 tilts so that the left side in the figure is lowered as shown in FIG. 8B. Even in this case, the convex portion 34 of the key top 30 is in contact with the spring member 20, and presses the spring member 20.
  • the bulging portion 24 of the spring member 20 reverses, so that the key top 30 is shown in the figure as a whole as shown in FIG. 8C. Move down. Even in this state, the convex portion 34 of the key top 30 and the spring member 20 are in contact with each other. Further, with the momentum of the key top 30 moving downward, the key top 30 moves along the upper surface of the spring member 20 whose upper surface is flattened by the reversing operation of the bulging portion 24. As a result, as shown in FIG. 8D, the pressing surface 35 of the key top 30 is parallel to the upper surface 44 of the eaves portion 42. In the state shown in FIG. 8D, the pressing surface 35 of the key top 30 is maintained in a direction orthogonal to the pressing direction.
  • the state change shown in FIGS. 8A to 8D is performed in a short time when the vicinity of the corner of the key top 30 indicated by the arrow D is pressed. That is, even if the end of the pressing surface 35 of the key top 30 is pressed (see arrow D), the pressing surface 35 of the key top 30 becomes the upper surface 44 of the eaves 42 due to the reversing operation of the spring member 20 by the convex portion 34. Move so that they are parallel. Since the convex portion 34 has a ring shape arranged so as to face each other over the entire outer edge of the bulging portion 24, when the end of the pressing surface 35 of the key top 30 is pressed, the end of the pressing surface 35 is pressed. The same effect can be obtained all around.
  • the spring member 20 of the switch 1 since there are a wide range of places that can be easily pressed, a convex portion 34 is provided around the key top 30 so that the reversing operation can be easily started by the convex portion 34. It is configured.
  • FIG. 9 is a diagram showing a manufacturing method of the switch 1, FIG. 9A shows a first step, FIG. 8B shows a second step, FIG. 9C shows a third step, and FIG. 9D shows a fourth step.
  • the membrane sheet 12 is prepared.
  • the membrane sheet 12 prepared in the first step is adhered to the base material 11 to form the substrate 10.
  • the spring member 20 and the key top 30 are engaged so that the engaging portion 33 is contained in the top opening 27.
  • the spring member 20 and the key top 30 engaged in the third step are housed in the case member 40 so that the four support portions 21 of the spring member 20 coincide with the positions of the recesses 43 of the case member 40, respectively.
  • the switch 1 is manufactured by adhering the bottom surface of the case member 40 to the surface of the substrate 10.
  • the convex portion 34 is arranged in the region facing the bulging portion 24 on the opposite surface of the pressing surface 35 of the key top 30, so that the bulging portion 24 is inverted over the entire surface to reverse the key.
  • the pressing surface 35 of the top 30 is maintained in a direction orthogonal to the pressing direction.
  • the switch 1 uses a single spring member 20 as a guide member for maintaining the pressing surface 35 of the key top 30 in a direction orthogonal to the pressing direction, Patent Documents 1 to 1 having a scissor structure formed by a plurality of members. The manufacturing cost can be reduced as compared with the switch described in 3. Further, since only the spring member 20 is arranged between the substrate 10 and the key top 30, the switch 1 can be made thinner.
  • the convex portion 34 is arranged so as to face the vicinity of the outer edge of the bulging portion 24 in which the four fan-shaped openings 26 are not formed, the key top 30 is pressed immediately.
  • the bulging portion 24 can be inverted over the entire surface.
  • the spring member 20 is pressed when the key top 30 is pressed. It is possible to prevent it from bouncing and moving from a predetermined position.
  • FIG. 10 is a cross-sectional view of the switch 2 according to the second embodiment.
  • FIG. 10 is a cross-sectional view corresponding to a cross-sectional view of the switch 1 along the line AA of FIG. 1B.
  • Switch 2 is different from switch 1 in that it has a rubber dome 50. Since the configurations and functions of the components of the switch 2 other than the rubber dome 50 are the same as the configurations and functions of the components of the switch 1 having the same reference numerals, detailed description thereof will be omitted here.
  • the rubber dome 50 is made of a flexible synthetic resin such as a silicone resin, and the contact 13 of the substrate 10 is pressed in response to the pressing of the key top 30.
  • the top of the rubber dome 50 is connected to the bulge 24.
  • the rubber dome 50 is a dome material which is an elastic member arranged between the substrate 10 and the spring member so as to cover the contact point 13.
  • the rubber dome 50 When the key top 30 is pressed and a pressing load is applied from above, the rubber dome 50 is elastically deformed and an elastic restoring force is accumulated. When the key top 30 is released, the rubber dome 50 is restored to its original shape by the elastic restoring force, and the key top 30 returns to the initial position.
  • FIG. 11 is a diagram showing the operation of the switch 2 when the vicinity of the corner of the key top 30 is pressed.
  • FIG. 11 is a cross-sectional view corresponding to a cross-sectional view of the switch 1 along the line AA of FIG. 1B.
  • the rubber dome 50 becomes a "fulcrum", and the protruding portion extending from the corner facing the corner of the pressed key top 30. 32 is the "point of action”.
  • the protruding portion 32 which is the “point of action”, comes into contact with the eaves portion 42 in the same manner as the operation of the switch 1 shown in FIG.
  • the rubber dome 50 serving as the "fulcrum” absorbs the pressing load applied in the vicinity of the corner of the key top 30 which is the "force point” to be pressed, and prevents the pressing surface 35 of the key top 30 from tilting. ..
  • the reversing operation gradually propagates from the vicinity of the portion in contact with the convex portion 34 which has become the "point of action", and the reversing operation is performed over the entire bulging portion 24 to move the convex portion 34.
  • the pressing surface 35 of the key top 30 supported by the bulging portion 24 is maintained in a direction orthogonal to the pressing direction.
  • FIG. 12 is a diagram showing a manufacturing method of the switch 2, FIG. 12A shows a first step, FIG. 12B shows a second step, FIG. 12C shows a third step, and FIG. 12D shows a fourth step.
  • the membrane sheet 12 is prepared.
  • the adhesive layer 51 is arranged in a ring shape around the contact 13.
  • the rubber dome 50 is adhered to the membrane sheet 12 via the adhesive layer 51 arranged in the third step.
  • the membrane sheet 12 prepared in the first step is adhered to the base material 11.
  • the bottom surface of the case member 40 is adhered to the surface of the substrate 10. Then, the switch 2 is manufactured.
  • the switch 2 is arranged between the substrate 10 and the spring member 20 so that the rubber dome 50 covers the contact 13, the click feeling can be improved as compared with the switch 1.
  • FIG. 13A is a cross-sectional view of the switch 3 according to the third embodiment (No. 1)
  • FIG. 13B is a cross-sectional view of the switch 3 (No. 2)
  • FIG. 13C is a portion surrounded by a broken line G shown in FIG. 13B. It is a partially enlarged view of.
  • FIG. 13A is a cross-sectional view corresponding to the cross-sectional view taken along the line AA of FIG. 1B of the switch 1
  • FIG. 13B is a cross-sectional view corresponding to the cross-sectional view taken along the line BB of FIG. 1B of the switch 1.
  • the switch 3 differs from the switch 1 in that the spring member 60 is provided in place of the spring member 20. Since the configurations and functions of the components of the switch 3 other than the spring member 60 are the same as the configurations and functions of the components of the switch 1 having the same reference numerals, detailed description thereof will be omitted here.
  • FIG. 14A is a perspective view of the spring member 60
  • FIG. 14B is a plan view of the spring member 60.
  • the spring member 60 is also referred to as a tongue piece, and is different from the spring member 20 in that it has a pressing portion 65 that is integrally formed with the support portion 21 to the bulging portion 24 by being formed by punching out the top opening portion 67. .. Since the components and functions of the spring member 60 other than the pressing portion 65 are the same as the components and functions of the spring member 20 having the same reference numerals, detailed description thereof will be omitted here.
  • the pressing portion 65 includes an arm portion 651 that extends from one side of the top opening 67 toward the bulging portion 24 in a direction opposite to the bulging direction, and a contact portion 652 that extends parallel to the substrate from the tip of the arm portion 651. And have.
  • the pressing portion 65 presses the contact 13 and turns on the contact 13 by reversing the bulging portion 24 in response to the pressing of the key top 30.
  • the bulging portion 24 is separated from the contact 13 and restored to its original shape by an elastic restoring force.
  • the contact 13 is turned off.
  • the key top 30 is pressed to turn the switch 3 on and off by adjusting the shape such as the position and length of the pressing portion 65.
  • the pressing distance can be set to a desired distance.
  • FIG. 15 is a partial cross-sectional view of the switch 5 according to the fourth embodiment.
  • the convex portion 34 is arranged in the region facing the bulging portion on the opposite surface of the pressing surface 35 of the key top 30, but the convex portion is formed on the bulging portion of the spring member. It may be arranged.
  • the switch 4 shown in FIG. 15 is an example in which the convex portion 74 is arranged on the bulging portion of the spring member 70.
  • the switch 4 differs from the switch 1 in that the spring member 70 and the key top 80 are provided in place of the spring member 20 and the key top 30. Since the components and functions of the switch 4 other than the spring member 70 and the key top 80 are the same as the components and functions of the switch 1 having the same reference numerals, detailed description thereof will be omitted here.
  • the spring member 70 is different from the spring member 20 in that it has a convex portion 74. Since the configurations and functions of the components of the spring member 70 other than the convex portion 74 are the same as the configurations and functions of the components of the spring member 20 having the same reference numerals, detailed description thereof will be omitted here.
  • the convex portion 74 is a protruding portion that protrudes in the same direction as the bulging direction of the bulging portion 24, and is in contact with the opposite surface of the pressing surface 35 of the key top 80.
  • the key top 80 is different from the key top 30 in that it does not have a convex portion 34. Since the components and functions of the key top 80 other than having no convex portion 34 are the same as the components and functions of the key top 80 having the same reference numerals, detailed description thereof will be omitted here. ..
  • the pressing portion 65 is provided by the spring member 60, but in the switch 4, the key top 80 may have a configuration corresponding to the pressing portion. Further, the engaging portion 33 of the key top 80 having a columnar shape may be formed so that the contact 13 can be turned on and off.
  • the substrate 10 has a membrane sheet 12, but the substrate 10 does not have to have the membrane sheet 12 as long as it has a contact that is turned on and off by pressing a key top. ..
  • the positional relationship between the spring member and the key top is determined by penetrating the engaging portion 33 of the key top through the top opening 27 of the spring member.
  • the positional relationship between the spring member and the key top may be determined by the protrusion on the key top side provided so as to engage the fan-shaped opening 26 of the spring member.
  • the positional relationship between the spring member and the key top may be determined by a protrusion on the key top side provided so as to engage with the outer circumference of the spring member.
  • the convex portion 34 of the key top 30 has a ring-shaped planar shape, but the convex portion of the key top may be arranged only in the region facing the bulging portion 24 of the spring member. good.
  • the convex portion of the keycap has, for example, a bump shape having a radius of 0.8 mm, and a plurality of convex portions may be arranged at positions facing the bulging portion of the spring member. That is, the convex portion may not exist at the portion corresponding to the fan-shaped opening 26.
  • the flat plate portion 23 is arranged parallel to the stretching direction of the substrate 10 and the four support portions 21, but the flat plate portion is arranged so as to be inclined from the stretching direction of the substrate 10 and the four support portions 21. May be done.
  • the bulging portion 24 has a circular planar shape, but the bulging portion may have a planar shape other than a circular shape such as a rectangle.
  • the protruding portion 32 of the key top 30 protrudes from the corner of the base 31, but the protruding portion of the key top may protrude from the side of the base 31.
  • the convex portion 34 of the key top 30 is integrally molded with the other components of the key top 30, but the convex portion of the key top is a separate member joined with the other components of the key top. It may be.
  • the convex portion 34 of the key top 30 is arranged so as to face the vicinity of the outer edge of the bulging portion 24, but the convex portion of the key top is arranged so as to face the bulging portion. Just do it.
  • FIG. 16A is a perspective view of the switch 5 according to the fifth embodiment
  • FIG. 16B is a plan view of the switch 5 shown in FIG. 16A
  • FIG. 16C is a plan view of the switch 5 shown in FIG. 16B with the key top removed.
  • FIG. 17A is a cross-sectional view of the switch 5 along the line AA shown in FIG. 16B
  • FIG. 17B is a cross-sectional view of the switch 5 along the line BB shown in FIG. 16B
  • FIG. 17C is a broken line shown in FIG. 17B.
  • 18A is an exploded perspective view of the switch 5 shown in FIG. 16A
  • FIG. 18B is an exploded perspective sectional view of the switch 5 shown in FIG. 16A.
  • Switch 5 differs from switch 1 in that it has a key top 130 instead of the key top 30. Since the configurations and functions of the components of the switch 5 other than the key top 130 are the same as the configurations and functions of the components of the switch 1 having the same reference numerals, detailed description thereof will be omitted here.
  • FIG. 19 is a perspective view of the key top 130.
  • the key top 130 has a base 131, four protruding portions 132, an engaging portion 133, a first convex portion 134, and a second convex portion 135, and is integrally molded by injection processing, extrusion processing, or the like. ..
  • the key top 130 is arranged so as to cover the spring member 20.
  • the base portion 131 has a substantially rectangular planar shape, a wall portion extends from each side, and a protruding portion 132 is arranged at each of the four corners.
  • the surface of the base 131 opposite to the surface facing the substrate 10 is a pressing surface 136 pressed by an operator who operates the switch 5.
  • the four projecting portions 132 project from the corners of the base portion 131 in the extending direction of the diagonal line of the base portion 131 and parallel to the extending direction of the pressing surface 136.
  • the four protrusions 132 are arranged so that the height position of the front surface is lower than the pressing surface 136 and substantially coincides with the height position of the back surface of the base 131.
  • the engaging portion 133 is a columnar protrusion and is arranged at the center of the back surface of the base 131.
  • the engaging portion 133 is engaged with the top opening 27 to engage the spring member 20 and the key top 130.
  • the engaging portion 133 is engaged with the top opening 27 by penetrating the engaging portion 133 so as to be movable through the top opening 27.
  • penetrating the engaging portion 133 through the top opening 27 so as to be movable and engaging the engaging portion 133 the bulging portion 24 of the spring member 20 can reversely operate when the pressing surface 136 is pressed.
  • the switch 5 can realize a good click feeling. Further, by passing the engaging portion 133 through the top opening 27, the positional relationship between the spring member 20 and the key top 130 is determined.
  • the first convex portion 134 and the second convex portion 135 are ring-shaped protrusions, and are arranged on the back surface of the base portion 131 so as to be centered on the engaging portion 133.
  • the inner diameter of the second convex portion 135 is longer than the inner diameter of the first convex portion 134, and the second convex portion 135 is arranged so as to surround the first convex portion 134. Further, the height of the second convex portion 135 is higher than the height of the first convex portion 134.
  • FIG. 20 is a diagram showing the arrangement relationship between the bulging portion 24 and the first convex portion 134 and the second convex portion 135.
  • the first convex portion 134 is arranged so as to face the vicinity of the outer edge of the bulging portion 24.
  • the height H1 of the first convex portion 134 is lower than the height H2 of the second convex portion 135. Further, the first convex portion 134 is in contact with the bulging portion 24. Since the first convex portion 134 is in contact with the bulging portion 24, the bulging portion 24 starts a reversing operation in response to the key top 130 being pressed.
  • the second convex portion 135 is arranged so as to face the flat plate portion 23 and to be separated from the flat plate portion 23 by a separation distance D2. Since the second convex portion 135 is arranged so as to be separated from the flat plate portion 23 having no sweet spot, there is no possibility that the click feeling is lowered due to a decrease in the click rate or the like when the switch 5 is pressed.
  • the height H2 and the separation distance D2 of the second convex portion 135 are defined so that the second convex portion 135 comes into contact with the flat plate portion 23 before the first convex portion 134 starts the reversing operation.
  • the bulging portion 24 of the first convex portion 134 and the second convex portion 135 starts the reversing operation. It comes into contact with the spring member 20 at the same time before. Both the first convex portion 134 and the second convex portion 135 are in contact with the spring member 20 at the same time before the bulging portion 24 starts the reversing operation. Continue to contact the spring member 20.
  • the amount of displacement of the bulging portion 24 in the pressing direction of the switch 5 is the largest at the top opening 27, becomes smaller toward the outer edge of the bulging portion 24, and becomes smaller at the flat plate portion 23. ..
  • the first convex portion 134 is arranged so as to face the bulging portion 24, it may be separated depending on the amount of displacement of the bulging portion 24, and the first convex portion 134 and the bulging portion 24 may not come into contact with each other.
  • the second convex portion 135 is arranged so as to face the flat plate portion 23 having a small displacement amount, the second convex portion 135 is attached to the spring member 20 even when the first convex portion 134 is separated from the spring member 20. Since they are in contact, the key top 130 continues to be in contact with the spring member 20.
  • FIG. 21 is a diagram showing the operation of the switch 5 when the vicinity of the corner of the key top 130 is pressed, FIG. 21A shows the first state, FIG. 21B shows the second state, and FIG. 21C shows the second state. The state of 3 is shown. 21A to 21C are cross-sectional views taken along the line AA shown in FIG. 16B.
  • the corner of the pressed key top 130 is pressed down, while the pressed key top 130 is pressed.
  • the protruding portion 132 extending from the corner facing the corner of the eaves portion 42 is in contact with the eaves portion 42.
  • the protruding portion 132 extending from the angle facing the corner of the pressed key top 130 is a "fulcrum”
  • the corner of the pressed key top 130 is a "power point”
  • the key top 130 is
  • the first convex portion 134 that presses the bulging portion 24 in response to being pressed is the “point of action”.
  • the bulging portion 24 In response to the first convex portion 134, which is the "point of action,” pressing the bulging portion 24, the bulging portion 24 is gradually pushed down to start the reversing operation.
  • the bulging portion 24 starts the reversing operation, the reversing operation gradually propagates from the vicinity of the portion in contact with the first convex portion 134, which is the “point of action”.
  • the bulging portion 24 is inverted over the entire bulging portion 24 including the vicinity of the protruding portion 132 which was the "fulcrum" in the first state, and the bulging portion 24 is passed through the first convex portion 134.
  • the pressing surface 136 of the key top 130 supported by the key top 130 returns to the direction orthogonal to the pressing direction.
  • the pressing surface 136 of the key top 130 is maintained in the direction orthogonal to the pressing direction according to the pressing of the key top 30. While being pushed down.
  • the second convex portion 135 comes into contact with the flat plate portion 23 before the bulging portion 24 starts the reversing operation.
  • the key top 130 pushes down the spring member 20 while being in contact with the spring member 20 at both the first convex portion 134 and the second convex portion 135.
  • the bulging portion 24 in contact with the first convex portion 134 reverses.
  • the first convex portion 134 is separated from the bulging portion 24 that has been inverted, while the second convex portion 135 is in contact with the flat plate portion 23 and is applied to the pressing surface 136 of the key top 130.
  • the pressing force is continuously applied to the spring member 20.
  • the contact 13 is turned on. That is, the key top 130 keeps in contact with the spring member 20.
  • FIG. 22 is a diagram showing a manufacturing method of the switch 5, FIG. 22A shows a first step, FIG. 22B shows a second step, FIG. 22C shows a third step, and FIG. 22D shows a fourth step.
  • the membrane sheet 12 is prepared.
  • the membrane sheet 12 prepared in the first step is adhered to the base material 11 to form the substrate 10.
  • the spring member 20 and the key top 130 are engaged by engaging the engaging portion 133 with the top opening 27.
  • the spring member 20 and the key top 130 engaged in the third step are placed in the case member 40 so that the support portion 21 of the spring member 20 coincides with the position of the recess 43 of the case member 40. Be housed.
  • the switch 5 is manufactured by adhering the bottom surface of the case member 40 to the surface of the substrate 10.
  • the bulging portion 24 is inverted over the entire surface.
  • the pressing surface 136 of the key top 130 can be maintained in a direction orthogonal to the pressing direction.
  • the switch 5 uses a single spring member 20 as a guide member for maintaining the pressing surface 136 of the key top 130 in a direction orthogonal to the pressing direction, Patent Documents 1 to 3 having a scissor structure formed by a plurality of members. The manufacturing cost can be reduced as compared with the switches described in. Further, since only the spring member 20 is arranged between the substrate 10 and the key top 130, the switch 5 can be made thinner.
  • the second convex portion 135 is arranged in the region opposite to the flat plate portion 23 on the opposite surface of the pressing surface 136 of the key top 130 so as to be separated from the flat plate portion 23, the bulging portion 24 reverses. Later, a uniform pressing force can be continuously applied to the spring member 20.
  • the first convex portion 134 is arranged so as to face the vicinity of the outer edge of the bulging portion 24 in which the four fan-shaped openings 26 are not formed, so that the key top 130 is pressed in response to the pressing of the key top 130.
  • the bulging portion 24 can be quickly reversed over the entire surface.
  • the switch 5 accommodates the support portion 21 of the spring member 20 in the recess 43 and holds the spring member 20 between the substrate 10 and the case member 40, the spring member 20 is pressed when the key top 130 is pressed. It is possible to prevent it from bouncing and moving from a predetermined position.
  • FIG. 23 is a cross-sectional view of the switch 6 according to the sixth embodiment.
  • FIG. 23 is a cross-sectional view corresponding to the cross-sectional view of the switch 5 along the line AA of FIG. 16B.
  • the switch 6 is different from the switch 5 in that it has a rubber dome 50. Since the configurations and functions of the components of the switch 6 other than the rubber dome 50 are the same as the configurations and functions of the components of the switch 5 having the same reference numerals, detailed description thereof will be omitted here.
  • the rubber dome 50 is made of a flexible synthetic resin such as a silicone resin, and the contact 13 of the substrate 10 is pressed in response to the pressing of the key top 130.
  • the top of the rubber dome 50 is connected to the bulge 24.
  • the rubber dome 50 is a dome material which is an elastic member arranged between the substrate 10 and the spring member so as to cover the contact point 13.
  • the rubber dome 50 When the key top 130 is pressed and a pressing load is applied from above, the rubber dome 50 is elastically deformed and an elastic restoring force is accumulated. When the key top 130 is released, the rubber dome 50 is restored to its original shape by the elastic restoring force, and the key top 130 returns to the initial position.
  • FIG. 24 is a diagram showing the operation of the switch 6 when the vicinity of the corner of the key top 130 is pressed.
  • FIG. 24 is a cross-sectional view corresponding to the cross-sectional view of the switch 5 along the line AA of FIG. 16B.
  • the rubber dome 50 becomes a "fulcrum", and the protruding portion extending from the corner facing the corner of the pressed key top 130. 132 is the “point of action”.
  • the protruding portion 132 which is the “point of action”, comes into contact with the eaves portion 42 in the same manner as the operation of the switch 1 shown in FIG.
  • the rubber dome 50 serving as the "fulcrum” absorbs the pressing load applied near the corner of the key top 130, which is the "force point” to be pressed, and prevents the pressing surface 136 of the key top 130 from tilting. ..
  • the reversing operation gradually propagates from the vicinity of the portion where the first convex portion 134 which is the "point of action" is in contact, and the reversing operation is performed over the entire bulging portion 24.
  • the bulging portion 24 reverses, the pressing surface 136 of the key top 130 is maintained in a direction orthogonal to the pressing direction, and the spring member 20 is uniformly pressed via the second convex portion 135 of the key top 130. A force is applied.
  • connection between the substrate 10 and the rubber dome 50 in the switch 6 is the same as the steps shown in FIGS. 12A to 12D, the description thereof will be omitted.
  • the bottom surface of the case member 40 is adhered to the surface of the substrate 10. Then, the switch 6 is manufactured.
  • the switch 6 is arranged between the substrate 10 and the spring member 20 so that the rubber dome 50 covers the contact 13, the click feeling can be improved as compared with the switch 5.
  • FIG. 25A is a cross-sectional view of the switch 7 according to the seventh embodiment (No. 1)
  • FIG. 25B is a cross-sectional view of the switch 7 (No. 2)
  • FIG. 25C is a portion surrounded by a broken line G shown in FIG. 25B. It is a partially enlarged view of.
  • FIG. 25A is a cross-sectional view corresponding to the cross-sectional view taken along the line AA of FIG. 16B of the switch 5
  • FIG. 25B is a cross-sectional view corresponding to the cross-sectional view taken along the line BB of FIG. 16B of the switch 5.
  • the switch 7 is different from the switch 5 in that the spring member 60 is provided in place of the spring member 20. Since the configurations and functions of the components of the switch 7 other than the spring member 60 are the same as the configurations and functions of the components of the switch 5 having the same reference numerals, detailed description thereof will be omitted here. Since the spring member 60 is the same as that shown in FIGS. 14A and 14B, the description thereof will be omitted.
  • the pressing portion 65 presses the contact 13 and turns on the contact 13 by reversing the bulging portion 24 in response to the pressing of the key top 130.
  • the bulging portion 24 is separated from the contact 13 and restored to its original shape by an elastic restoring force, and the contact 13 is turned off.
  • the key top 130 is pressed to turn the switch 7 on and off by adjusting the shape such as the position and length of the pressing portion 65.
  • the pressing distance can be set to a desired distance.
  • FIG. 26 is a partial cross-sectional view of the switch 8 according to the eighth embodiment.
  • the first convex portion 134 is arranged in a region facing the bulging portion on the opposite surface of the pressing surface 136 of the key top 130, and the convex portion is the bulging portion of the spring member. May be placed in.
  • the switch 8 shown in FIG. 26 is an example in which the first convex portion 174 and the second convex portion 175 are provided on the spring member 170 side.
  • the switch 8 differs from the switch 5 in that the switch 8 has the spring member 170 and the key top 80 in place of the spring member 20 and the key top 130. Since the components and functions of the switch 8 other than the spring member 170 and the key top 80 are the same as the components and functions of the switch 5 having the same reference numerals, detailed description thereof will be omitted here.
  • the spring member 170 is different from the spring member 20 in that it has a first convex portion 174 and a second convex portion 175. Since the configurations and functions of the components of the spring member 170 other than the first convex portion 174 and the second convex portion 175 are the same as the configurations and functions of the components of the spring member 20 having the same reference numerals, detailed description thereof will be given here. Is omitted.
  • the first convex portion 174 and the second convex portion 175 are protrusions that protrude in the same direction as the bulge direction of the bulge 24, and are in contact with the opposite surface of the pressing surface 36 of the key top 80 (see FIG. 15). ..
  • the first convex portion 174 is arranged on the bulging portion 24, and the second convex portion 175 is arranged on the flat plate portion 23.
  • the pressing portion 65 is provided by the spring member 60, but in the switch 8, the key top 80 may have a configuration corresponding to the pressing portion. Further, the engaging portion 33 of the key top 80 having a columnar shape may be formed so that the contact 13 can be turned on and off.
  • FIG. 27 is a partial cross-sectional view of the switch 9 according to the ninth embodiment.
  • the switch 9 differs from the switch 5 in that the spring member 176 and the key top 86 are provided in place of the spring member 20 and the key top 130. Since the components and functions of the switch 9 other than the spring member 176 and the key top 86 are the same as the components and functions of the switch 5 having the same reference numerals, detailed description thereof will be omitted here.
  • the spring member 176 is different from the spring member 20 in that it has the first convex portion 174. Since the configurations and functions of the components of the spring member 176 other than the first convex portion 174 are the same as the configurations and functions of the components of the spring member 20 having the same reference numerals, detailed description thereof will be omitted here. Since the key top 86 does not have the first convex portion 134, the central portion of the back surface of the key top 86 is arranged so as to be in contact with the bulging portion 24 of the spring member 176.
  • the first convex portion 174 is a protruding portion that protrudes in the same direction as the bulging direction of the bulging portion 24, and is in contact with the opposite surface of the pressing surface 36 of the key top 86.
  • the first convex portion 174 is arranged on the bulging portion 24.
  • the key top 86 is different from the key top 130 in that it does not have the first convex portion 134.
  • the components and functions of the key top 86 except that the first convex portion 134 is not provided are the same as the components and functions of the key top 130 with the same reference numerals. Omit.
  • the key top 130 has two convex portions, a first convex portion 134 and a second convex portion 135, whereas in the switch 9, the key top 86 has only the second convex portion 135.
  • the spring member 176 has a convex portion 174.
  • the key top 86 may have only the first convex portion 134. In that case, the convex portion corresponding to the second convex portion 135 may be provided on the spring member 176 side.
  • FIG. 28 is a partial cross-sectional view of the switch 10 according to the tenth embodiment.
  • the switch 10 differs from the switch 5 in that the switch 10 has a spring member 177 and a key top 87 in place of the spring member 20 and the key top 130. Since the components and functions of the switch 10 other than the spring member 177 and the key top 87 are the same as the components and functions of the switch 5 having the same reference numerals, detailed description thereof will be omitted here.
  • the spring member 177 differs from the spring member 20 in that it has a bulging portion 178 instead of the bulging portion 24. Further, the spring member 177 is different from the spring member 20 in that it does not have the support portion 21 and the flat plate portion 23. Since the components and functions of the spring member 77 other than the bulging portion 78 are the same as the components and functions of the spring member 20 having the same reference numerals, detailed description thereof will be omitted here.
  • the bulging portion 178 is directly connected to the upper end of the leg portion 22 and is arranged so as to face the opposite surface of the pressing surface 36 of the key top 87.
  • the key top 87 is different from the key top 130 in that it does not have the engaging portion 133 and the first convex portion 134.
  • the components of the key top 87 except that the engaging portion 133 and the first convex portion 134 are not provided are the same as the components and functions of the key top 130 with the same reference numerals. Then, detailed explanation is omitted.
  • the second convex portion 135 is a convex portion arranged so as to face the spring member 177 and to be separated from the spring member 177.
  • the central portion of the surface opposite to the pressing surface 136 of the key top 87 is a portion other than the second convex portion 135 that contacts the spring member 177 before the bulging portion 178 reverses.
  • the key top 87 contacts the bulging portion 178, but when the pressing surface 136 of the key top 87 is not pressed, the key top 87 is in the bulging portion. It may be configured so as not to come into contact with 178.
  • the substrate 10 has the membrane sheet 12, but the substrate 10 does not have to have the membrane sheet 12 as long as it has contacts that are turned on and off by pressing the key top. ..
  • the positional relationship between the spring member and the key top is determined by passing the engaging portion 133 of the key top through the top opening 27 of the spring member.
  • the positional relationship between the spring member and the key top may be determined by the protrusion on the key top side provided so as to engage the fan-shaped opening 26 of the spring member.
  • the positional relationship between the spring member and the key top may be determined by the protrusion on the key top side provided so as to engage with the outer circumference of the spring member.
  • the first convex portion 34 and the second convex portion 35 of the key top 130 have a ring-shaped planar shape, but the convex portion is only in the region facing the bulging portion 24 of the spring member. It may be arranged.
  • the convex portion of the key top has, for example, a bump shape having a radius of 0.8 mm, and a plurality of convex portions may be arranged at positions facing the bulging portion of the spring member. That is, the convex portion may not exist at the portion corresponding to the fan-shaped opening 26.
  • the flat plate portion 23 of the spring member is arranged parallel to the stretching direction of the substrate 10 and the four support portions 21, but the flat plate portion 23 is arranged from the stretching direction of the substrate 10 and the four support portions 21. It may be arranged at an angle.
  • the bulging portion 24 of the spring member has a circular planar shape, but the bulging portion 24 may have a planar shape other than a circular shape such as a rectangle.
  • the spring member has a flat plate portion 23, but the spring member may have a bulging portion extending to the leg portion without having the flat plate portion.
  • the second convex portion 135 is outside the portion in contact with the first convex portion 134 in response to the key top being pressed. It contacts the bulging portion at a portion different from the portion where the first convex portion 134 contacts.
  • the protruding portion 132 of the key top protrudes from the corner of the base 131, but the protruding portion 132 of the key top may protrude from the side of the base 131.
  • first convex portion 134 and the second convex portion 135 of the key top are integrally molded with other components of the key top, but the first convex portion 134 and the second convex portion 135 of the key top are integrally formed. May be a separate member integrated with other components of the key top.
  • the first convex portion 134 of the key top is arranged so as to face the vicinity of the outer edge of the bulging portion 24, but the first convex portion 134 of the key top faces the bulging portion. It may be arranged so as to.
  • the first convex portion 34 and the second convex portion 35 of the key top have a ring-shaped planar shape, but the first convex portion and the second convex portion of the key top have a planar shape other than the ring shape. May have.
  • FIG. 29A is a perspective view of another key top 130a
  • FIG. 29B is a perspective view of another key top 130b.
  • the key top 130a shown in FIG. 29A has a first convex portion 133a instead of the engaging portion 133 and the first convex portion 134. Since the components and functions of the key tops 130a other than the first convex portion 133a are the same as the components and functions of the key tops 130 having the same reference numerals, detailed description thereof will be omitted here.
  • the key top 130a can be used with switches 5 to 7 instead of the key top 130.
  • the first convex portion 133a is arranged in the central portion of the back surface of the base portion 131, has a columnar shape, and bulges the spring member 20 arranged to face each other in response to the key top 130a being pressed.
  • the bulging portion 24 is pressed until the portion 24 reverses.
  • the key top 130b shown in FIG. 29B has first convex portions 134a, 134b and 134c in place of the first convex portion 134.
  • the key top 130b has second convex portions 135a, 135b and 135c in place of the second convex portion 135.
  • the components of the key top 130b other than the first convex portions 134a, 134b and 134c and the second convex portions 135a, 135b and 135c are the components and functions of the key top 130 having the same reference numerals. Since they are the same, detailed description thereof will be omitted here.
  • the key top 130b can be used with switches 5 to 7 instead of the key top 130.
  • the first convex portions 134a, 134b and 134c are arranged apart from each other at the positions where the first convex portion 134 on the back surface of the base portion 131 is arranged, and the key top 130b is pressed in the same manner as the first convex portion 134. Correspondingly, the spring member is pushed until the bulging portion 24 reverses.
  • the second convex portions 135a, 135b and 135c are arranged apart from each other at the positions where the second convex portion 135 on the back surface of the base portion 131 is arranged, and before the bulging portion 24 reversely operates like the second convex portion 135. In contact with the flat plate portion 23, the spring member is pressed after the bulging portion 24 reverses.
  • the key top 130b has three first convex portions and two second convex portions, respectively, but the number of the first convex portions and the second convex portions arranged separately may be four or more, respectively.
  • the number of the first convex portions and the second convex portions arranged separately may be four or more, respectively.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Push-Button Switches (AREA)

Abstract

L'invention concerne un interrupteur qui peut maintenir une surface de pression d'une partie supérieure de bouton dans une direction perpendiculaire à une direction de pression lorsqu'elle est pressée et qui peut être fabriqué pour un coût de fabrication inférieur. L'interrupteur comprend : un substrat comprenant un contact ; un élément ressort qui comporte une partie bombée qui est bombée dans une direction opposée au substrat et qui est disposé sur le substrat pour presser le contact lorsque la partie bombée est inversée ; une partie supérieure de bouton qui comprend une partie base plate présentant une surface de pression qui est une surface en regard d'une surface faisant face au substrat et une partie en saillie faisant saillie à partir d'un bord extérieur de la partie base en parallèle d'une direction d'extension de la surface de pression ; et un élément boîtier qui comprend une partie paroi entourant l'élément ressort et une partie corniche qui s'étend à partir d'une paroi interne de la partie paroi en parallèle d'une direction d'extension de la surface du substrat et comprend une surface inférieure en contact avec la partie en saillie, la partie supérieure de bouton restant en contact avec l'élément ressort en même temps que la partie bombée est inversée.
PCT/JP2021/016521 2020-04-30 2021-04-23 Interrupteur WO2021220979A1 (fr)

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JP2020-080453 2020-04-30
JP2020080453 2020-04-30
JP2020134919 2020-08-07
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5740825A (en) * 1980-08-25 1982-03-06 Tokai Communication Ind Matrix switch
JPH1167002A (ja) * 1997-08-27 1999-03-09 Matsushita Electric Ind Co Ltd プッシュスイッチ
JPH11339593A (ja) * 1998-05-29 1999-12-10 Shin Etsu Polymer Co Ltd 押釦スイッチ装置
JP2003272469A (ja) * 2002-03-19 2003-09-26 Minebea Co Ltd キーボードの防水機構
JP2010146947A (ja) * 2008-12-22 2010-07-01 Alps Electric Co Ltd プッシュスイッチ
JP2017076488A (ja) * 2015-10-14 2017-04-20 アルプス電気株式会社 プッシュスイッチ、および、それを用いたキーボード
WO2019230510A1 (fr) * 2018-06-01 2019-12-05 パナソニックＩｐマネジメント株式会社 Dispositif d'entrée

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5740825A (en) * 1980-08-25 1982-03-06 Tokai Communication Ind Matrix switch
JPH1167002A (ja) * 1997-08-27 1999-03-09 Matsushita Electric Ind Co Ltd プッシュスイッチ
JPH11339593A (ja) * 1998-05-29 1999-12-10 Shin Etsu Polymer Co Ltd 押釦スイッチ装置
JP2003272469A (ja) * 2002-03-19 2003-09-26 Minebea Co Ltd キーボードの防水機構
JP2010146947A (ja) * 2008-12-22 2010-07-01 Alps Electric Co Ltd プッシュスイッチ
JP2017076488A (ja) * 2015-10-14 2017-04-20 アルプス電気株式会社 プッシュスイッチ、および、それを用いたキーボード
WO2019230510A1 (fr) * 2018-06-01 2019-12-05 パナソニックＩｐマネジメント株式会社 Dispositif d'entrée

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