JP2016004767A - Push-button switch - Google Patents

Abstract

A push button switch that is easy to maintain and can be adjusted in position is provided. A push button switch includes a box-shaped base (10), a connection terminal (30) that protrudes from a bottom surface of the base (10) and contacts a fixed contact portion of the base substrate when attached to the base substrate; An operation cover (70) covering the base (10), a push button (80) protruding from the operation cover (70) and arranged so as to be pushed in, and a switch mounting portion (73) for removably attaching to the base substrate It has. When the push button switch is attached to the base substrate, there is play between the switch attachment portion (73) and the base substrate that is movable in the extending direction of the base substrate. [Selection] Figure 4

Description

  The present invention relates to a push button switch.

  Conventionally, as a push button switch, for example, there is an illuminated push button switch described in Patent Document 1. The illuminated push button switch includes a box-shaped base having an open top surface, a push button that covers the opening of the base, and a rotation link mechanism disposed in the base. And by this rotation link mechanism, the push button can be operated stably without tilting.

WO 2010/092679 specification

  However, when the above-described push button switch is used as, for example, an elevator switch, it is integrally fixed to the base substrate of the elevator switch. For this reason, there was a problem that the push button switch could not be easily removed and maintenance was difficult.

  Further, since the push button switch and the base substrate such as an elevator switch are integrated, there is a problem that high positioning accuracy is required for mounting the push button switch.

  In view of the above problems, an object of the present invention is to provide a push button switch that is easy to maintain and can be adjusted in position.

  In view of the above problems, the push button switch of the present invention is a push button switch that is attached to a base substrate having a fixed contact portion. The push button switch protrudes from the bottom of the base and the base and is attached to the base substrate. A connection terminal that sometimes contacts the fixed contact portion of the base substrate, an operation cover that covers the base, a push button that protrudes from the operation cover and is arranged so as to be pushed in, and a detachable attachment to the base substrate A switch mounting portion, and when mounted on the base substrate, a play is provided between the switch mounting portion and the base substrate that is movable in an extending direction of the base substrate.

  According to the present invention, there is provided the connection terminal that protrudes from the bottom surface of the base and comes into contact with the fixed contact portion of the base substrate when it is attached to the base substrate, and the switch attachment portion that is detachably attached to the base substrate. . For this reason, since the push button switch can be independently attached to and detached from the base substrate, the push button switch can be easily maintained.

  Further, when the push button switch is attached to the base substrate, there is a play that can move in the extending direction of the base substrate between the switch mounting portion and the base substrate. For this reason, since the position of the push button switch can be adjusted after the push button switch is attached to the base substrate, it is not necessary to strictly manage the positioning accuracy of the push button switch, and the manufacturing cost can be reduced.

  As an embodiment of the present invention, the position may be regulated by a panel that covers the base substrate when attached to the base substrate.

  According to this embodiment, when the push button switch is attached to the base substrate, the position is regulated by the panel that covers the base substrate. Therefore, when the switch attachment portion is attached to the base substrate, the switch attachment portion and the base substrate Even if there is play in between, the positioning accuracy of the push button switch can be increased.

  As an embodiment of the present invention, the switch mounting portion may be provided on the operation cover.

  According to this embodiment, the switch mounting portion is provided on the operation cover. Since the operation cover is attached to the base substrate, for example, even if the base and the operation cover are not fixed, the base can be supported by the operation cover, and the structure of the push button switch can be simplified.

  As an embodiment of the present invention, the connection terminal and the fixed contact portion of the base substrate may have a contact area that can contact each other even if the connection terminal moves in the extending direction of the base substrate.

  According to this embodiment, a push button switch with high contact stability can be obtained.

  The switch unit of the present invention is characterized in that a plurality of the push button switches are arranged side by side.

  According to the present invention, the degree of freedom in designing the switch unit is widened, and it can be used for various applications.

It is a perspective view which shows the pushbutton switch of one Embodiment of this invention. It is another perspective view of the pushbutton switch of FIG. It is sectional drawing of the pushbutton switch of FIG. It is a disassembled perspective view of the pushbutton switch of FIG. It is another disassembled perspective view of the pushbutton switch of FIG. It is a cross-sectional schematic diagram for demonstrating operation | movement of the pushbutton switch of FIG. It is another cross-sectional schematic diagram for demonstrating operation | movement of the pushbutton switch of FIG. It is a disassembled perspective view of the switch unit of one Embodiment of this invention. FIG. 9 is another exploded perspective view of the switch unit of FIG. 8. It is a figure for demonstrating the assembly | attachment state of the switch unit of FIG. It is a top view of the switch unit of FIG. It is sectional drawing seen from the XII-XII line | wire of FIG. It is sectional drawing seen from the XIII-XIII line | wire of FIG.

  An embodiment of a push button switch according to the present invention will be described with reference to the accompanying drawings of FIGS.

  As shown in FIGS. 4 and 5, the push button switch 1 according to an embodiment of the present invention includes a box-shaped base 10 having an open top surface, a printed circuit board 20 accommodated in the base 10, connection terminals 30, The rotation link mechanism 40, the contact spring 50, the plunger 60, an operation cover 70 that covers the base 10, and a push button 80 that protrudes from the operation cover 70 are configured.

  The base 10 has a substantially rectangular plane, and a positioning projection 11 for positioning the printed circuit board 20, a terminal hole 12 for projecting the connection terminal 30, and a rotation link mechanism 40 are arranged on the bottom surface of the base 10. It has a recess 13 and a plunger mounting hole 14 for mounting the plunger 60.

  The positioning protrusions 11 are arranged at the respective corners of the base 10. The terminal holes 12 are located on the inner side of the positioning protrusions 11 and are arranged so as to be located at the apexes of the quadrangle in plan view. The recesses 13 are respectively disposed at substantially central portions of a pair of opposing sides of the base 10. The plunger mounting holes 14 are arranged at the respective corners of the base 10 and are located outside the positioning projections 11.

  Further, the base 10 has a wall 15 for positioning the plunger 60 and a locking projection 16 for attaching the operation cover 70 on the side surface. The wall portions 15 protrude from the inside of the pair of opposing side surfaces, and are respectively disposed on both sides of the recessed portion 13. The locking projections 16 project from both ends in the longitudinal direction outside the side surface where the wall 15 is not provided.

  The printed circuit board 20 has a planar shape that can be stored on the bottom surface of the base 10, and has a positioning hole 21 for fitting and positioning with the positioning protrusion 11 of the base 10, and a cutout for attaching the rotation link mechanism 40. A portion 22 and a terminal mounting hole 23 for mounting the connection terminal 30 are provided.

  The positioning holes 21 are arranged at the respective corners of the printed circuit board 20. The printed circuit board 20 is attached to the base 10 by inserting the positioning protrusions 11 of the base 10 into the positioning holes 21. The notch 22 is arranged so that the concave link 13 of the base 10 is exposed when the printed circuit board 20 is attached to the base 10 and the rotation link mechanism 40 can be attached. A plurality of terminal attachment holes 23 are arranged along the side where the notch 22 is provided.

  The printed circuit board 20 has an LED (light emitting diode) 24 and a fixed contact portion 25 on the upper surface thereof. The LED 24 is provided at the center of the printed circuit board 20. The fixed contact portions 25 are provided on both sides of the LED 24 and are arranged along the side where the cutout portions 22 are provided.

  As shown in FIGS. 4B and 5B, the connection terminal 30 has attachment claw portions 31 provided at both ends in the longitudinal direction and terminal portions 32 provided at substantially the center in the longitudinal direction. The connection terminal 30 is fixed to the bottom surface of the printed circuit board 20 by press-fitting and bending the mounting claw portion 31 from the bottom surface side of the printed circuit board 20 into the terminal mounting hole 23. As shown in FIG. 2, the terminal portion 32 is formed so as to protrude from the terminal hole 12 of the base 10 when the printed circuit board 20 to which the connection terminal 30 is fixed is attached to the base 10.

  The connection terminal 30 is electrically connected to the LED 24 and the fixed contact portion 25 of the printed circuit board 20 when assembled to the printed circuit board 20.

  The rotation link mechanism 40 includes a first operation lever 41 and a second operation lever 42.

  The first and second operation levers 41 and 42 are metal wires bent into a substantially U-shaped plane, and the first and second connection receiving portions 43 and 44 and the first and second connection insertion portions 45 and 45 are respectively provided at both ends. 46. The first and second connection receiving portions 43 and 44 have first and second through holes 47 and 48 into which the first and second connection insertion portions 45 and 46 can be inserted, respectively.

  4 and 5, for convenience of explanation, the first and second operation levers 41 and 42 are shown independently. However, the rotation link mechanism 40 includes the first and second operation levers 41 and 42. It is arranged on the printed circuit board 20 in an operably connected state. That is, the second connection insertion portion 46 of the second operation lever 42 is inserted into the first through hole 47 of the first connection receiving portion 43 of the first operation lever 41. Further, the first connection insertion portion 45 of the first operation lever 41 is inserted into the second through hole 48 of the second connection reception portion 44 of the second operation lever 42, and the first connection receiving portions 43, 44 of the first connection reception portions 43, 44 are inserted. The first and second through holes 47 and 48 and the first and second connecting insertion portions 45 and 46 are disposed on the same axis. And each of the 1st, 2nd connection receiving parts 43 and 44 is arranged so that it may be located in crevice 13 of base 10, respectively.

  Hereinafter, a connecting portion of the first and second operation levers 41 and 42 is referred to as an intermediate portion 49.

  The contact spring 50 is a plate-like body having a waveform in a sectional view, and an LED opening 51 for allowing the light emitted from the LED 24 of the printed circuit board 20 to pass therethrough, and a hook for attaching the contact spring 50 to the rotation link mechanism 40. And a movable contact portion 53 having a twin contact structure.

  The LED opening 51 has a substantially rectangular shape and is disposed at the center of the contact spring 50. As shown in FIG. 3, the hook portion 52 has a curved shape that can be attached to the first and second operation levers, and is disposed at both ends of the contact spring 50. The contact spring 50 is attached to the rotation link mechanism 40 by hooking the hook 52 on the opposing linear portions of the first and second operation levers 41 and 42. In addition, the movable contact portion 53 is disposed symmetrically with respect to the LED opening 51. As shown in FIG. 3, the movable contact portion 53 is formed by making a substantially U-shaped cut in the contact spring 50 and gradually approaches the printed circuit board 20 from the hook portion 52 toward the LED opening 51. , Extending diagonally downward.

  The plunger 60 has a planar shape that can be fitted into the base 10 and has a planar shape that can cover the printed circuit board 20 and the rotation link mechanism 40, and is formed of a transparent resin material. The plunger 60 has a protrusion 61 for attaching the push button 80, a locking projection 62 for attaching the plunger 60 to the base 10, and a groove 63 for positioning the plunger 60.

  As shown in FIG. 4, the protruding portion 61 has a disc shape and is arranged at the center of the upper surface of the plunger 60. As shown in FIG. 5, the locking protrusions 62 are respectively arranged at the corners of the bottom surface of the plunger 60. The plunger 60 is attached to the base 10 by engaging the locking protrusion 62 with the plunger attachment hole 14 of the base 10. The groove part 63 has a shape in which the wall part 15 of the base 10 can be inserted, and is disposed on a pair of opposing sides.

  As shown in FIG. 4, the operation cover 70 has a substantially square shape in plan view that can cover the upper surface of the base 10, and a cover body 71 and side wall portions provided on a pair of sides facing the cover body 71. 72 and a switch mounting portion 73.

  The cover main body 71 has a plate shape and has an operation hole 74 for operating the push button 80 at the center. The operation hole 74 has a circular shape in plan view, and an annular wall 75 is provided on the periphery thereof. The side wall portions 72 are disposed at both ends of a pair of opposing sides of the cover main body 71 at a predetermined interval, and have cover mounting holes 76 that can be engaged with the locking projections 16 of the base 10. . As shown in FIG. 1, the operation cover 70 is attached to the base 10 by engaging the locking projection 16 of the base 10 with the cover attachment hole 76. Moreover, the switch attachment part 73 is each arrange | positioned between the side wall parts 72, and has a latching claw in the front-end | tip edge part inside a free end. The push button switch 1 is detachably attached to a board such as an elevator switch by engaging the locking claw with a switch attachment hole provided in the board such as an elevator switch.

  The push button 80 has a cylindrical shape that can be inserted into the operation hole 74 of the cover main body 71 and is formed of a transparent resin material. An arrow 81 is drawn on the upper surface of the push button 80. In addition, a retaining collar 82 is provided on the outer peripheral edge of the push button 80. Note that the shape of the push button 80 is not limited to a circular shape, and an arbitrary shape such as a square shape can be adopted.

  Next, a method for assembling the push button switch 1 will be described.

  First, the printed circuit board 20 on which the LEDs 24 and the connection terminals 30 are mounted is assembled to the base 10. At this time, the positioning projection 11 of the base 10 is fitted into the positioning hole 21 of the printed circuit board 20 to position the printed circuit board 20.

  Subsequently, the rotation link mechanism 40 to which the contact spring 50 is attached is assembled inside the base 10. At this time, it arrange | positions so that the connection receiving parts 43 and 44 of the 1st, 2nd operation levers 41 and 42 may be located in the recessed part 13 of the base 10, and the LED opening 51 of the contact spring 50 may be located on LED24.

  And the plunger 60 is attached to the base 10 so that the printed circuit board 20 and the rotation link mechanism part 40 may be covered. At this time, the wall portion 15 of the base 10 is fitted into the groove portion 63 of the plunger 60 to position the plunger 60.

  Finally, after assembling the push button 80 to the protruding portion 61 of the plunger 60, the operation cover 70 is attached so that the push button 80 protrudes from the operation hole 74, and the assembling work is completed.

  Next, the operation of the push button switch 1 will be described with reference to FIGS.

  As shown in FIG. 6, in the return state of the pushbutton switch 1 (that is, the switch-off state), the rotation link mechanism 40 has the intermediate portion 49 in the sectional view more than the printed circuit board 20 than both end portions 141 and 142. Located on the side. At this time, the fixed contact portion 25 of the printed circuit board 20 and the movable contact portion 53 of the contact spring 50 are separated and are not in contact with each other.

  As shown in FIG. 7, when the push button 80 is pushed down, a force is applied to the rotary link mechanism 40 toward the printed circuit board 20, and the both ends 141 and 142 are pushed down. At this time, the first operating lever 41 rotates with an intermediate point 143 between the intermediate portion 49 and the end portion 141 on the first operation lever 41 side as a fulcrum, while the end portion on the intermediate portion 49 and the second operation lever 42 side. The second operation lever 42 rotates with an intermediate point 144 with respect to 142 as a fulcrum. As a result, both end portions 141 and 142 move to a position lower than the return position (initial position), while the intermediate portion 49 moves to a position higher than the initial position, and the first and second operation levers 41 are moved. , 42 are substantially straight in a sectional view. As a result of the end portions 141 and 142 moving to a position lower than the initial position, the contact spring 50 is pushed down, the fixed contact portion 25 and the movable contact portion 53 come into contact with each other, and an operating state (ie, a switch-on state) is established.

  Thereafter, when the push button 80 is released, the both ends 141 and 142 are pulled inward by the return force of the contact spring 50, and the push button switch 1 automatically returns to the return state shown in FIG.

  Note that a horizontal pulling force F by the contact spring 50 and a vertical operating force f act on both end portions 141 and 142 of the push button switch 1. This operating force f corresponds to the vertical component force of the vector in the assembly angle θ direction with the pulling force F as the horizontal component force when the assembly angle θ of the first and second operation levers 41 and 42 is used. To do. That is, the operation force f1 in the return state shown in FIG. 6 is larger than the operation force f2 in the operation state shown in FIG. 7, and fluctuates rapidly when the operation state transitions from the return state to the operation state. As a result, the resistance to the pressing operation is rapidly reduced, and a click feeling is given to the user's finger.

  Next, the switch unit of the present invention will be described with reference to FIGS.

  As shown in FIGS. 8 and 9, the switch unit is assembled to the base substrate 100 with two push button switches 1 arranged vertically, for example, and then the panel 110 is attached from above the push button switch 1.

  At this time, the push button switch 1 is fixed to the base substrate 100 by inserting the switch mounting portion 73 into the switch mounting hole 101 of the base substrate 100 and locking it with the locking claw at the tip of the switch mounting portion 73. . For this reason, the connection operation and the installation operation of the push button switch 1 can be performed simultaneously.

  As shown in FIG. 10, the base substrate 100 is provided with a fixed contact portion 102 disposed so as to be in contact with the terminal portion 32 of the connection terminal 30 of the push button switch 1. The fixed contact portion 102 is formed so that the contact area is larger than that of the terminal portion 32.

  The panel 110 has an opening 111 having a diameter substantially the same as the outer diameter of the annular wall 75 of the operation cover 70, and is attached so that the push button 80 protrudes from the opening 111.

  As shown in FIGS. 10 and 11, the panel 110 is fixed to the external housing 200 or the like by attaching a fixing member such as a screw to each corner, for example. That is, the position of the push button switch 1 is regulated by the panel 110.

  The push button switch 1 protrudes from the bottom surface of the base 10 and contacts the fixed contact portion 102 of the base substrate 100 when the push button switch 1 is attached to the base substrate 100, and a switch attachment for detachably attaching to the base substrate 100 Part 73. For this reason, since the push button switch 1 can be attached to and detached from the base substrate 100 independently, maintenance of the push button switch 1 can be easily performed.

  Further, the switch mounting hole 101 has a length L1 (shown in FIG. 8) that is larger than the length L0 (shown in FIG. 8) of the switch mounting portion 73. Further, as shown in FIG. 12, the switch mounting portion 73 has a width W1 larger than the width W0. That is, when the push button switch 1 is attached to the base substrate 100, there is play that can move in the extending direction of the base substrate 100 between the switch attachment portion 73 and the base substrate 100. For this reason, since the position of the push button switch 1 can be adjusted after the push button switch 1 is attached to the base substrate 100, it is not necessary to strictly manage the positioning accuracy of the push button switch 1, and the panel 110 of the push button switch 1 is moved to. Is easy to install. For this reason, manufacturing cost can be reduced.

  Further, when the push button switch 1 is attached to the base substrate 100, the position is restricted by the panel 110 that covers the base substrate 100. Therefore, when the switch attachment portion 73 is attached to the base substrate 100, the switch attachment portion 73 and the base substrate Even if there is a play with 100, the positioning accuracy of the push button switch 1 can be increased.

  A switch mounting portion 73 is provided on the operation cover 70. Since the operation cover 70 is attached to the base substrate 100, for example, even if the engagement between the base 10 and the operation cover 70 is released and the base 10 and the operation cover 70 are not fixed, the operation cover 70 The base 10 can be supported. For this reason, the structure of the push button switch 1 can be simplified.

  Furthermore, the fixed contact portion 102 of the base substrate 100 has a larger contact area than the terminal portion 32 of the connection terminal 30. For this reason, even if the position of the push button switch 1 is adjusted, the contact state between the fixed contact portion 102 of the base substrate 100 and the terminal portion 32 of the connection terminal 30 can be maintained. As a result, a switch unit with high contact stability can be obtained.

  The same effect can be obtained even if the contact area of the terminal portion 32 of the connection terminal 30 is larger than that of the fixed contact portion 102 of the base substrate 100. In other words, the terminal portion 32 of the connection terminal 30 and the fixed contact portion 102 of the base substrate 100 only need to have a contact area that can contact each other even if the push button switch 1 is moved in the extending direction of the base substrate 100. .

  The push button switch 1 is provided with the switch mounting portion 73 in the operation cover 70, but is not limited thereto. For example, a switch mounting portion may be provided on the bottom surface or side surface of the base.

  Further, although a pair of switch mounting portions 73 are provided on the opposite sides of the operation cover 70, the present invention is not limited to this. For example, two or more sets of switch mounting portions may be provided, or a switch mounting portion may be provided on each side of the operation cover 70.

  Moreover, although the switch attachment part 73 which has a latching claw is provided in the front-end edge part inside a free end part, it is not restricted to this. When the push button switch is attached to the base substrate, any shape and structure can be adopted as long as it has a play that can move in the extending direction of the base substrate between the switch attachment portion and the base substrate.

  The switch unit includes two push button switches 1, but is not limited thereto. You may comprise by three or more pushbutton switches. Further, the push button switches 1 are not limited to be arranged in a row and may be assembled in two or more rows. Thereby, the freedom degree of design of a switch unit spreads and it can respond to various uses.

  The switch unit according to the present invention is not limited to the push button switch of the above embodiment, and any push button switch can be used as long as it is a detachable push button switch with respect to the base substrate.

DESCRIPTION OF SYMBOLS 1 Pushbutton switch 10 Base 11 Positioning protrusion 12 Terminal hole 13 Recessed part 14 Plunger attachment hole 15 Wall part 16 Locking protrusion 20 Printed circuit board 21 Positioning hole 22 Notch part 23 Terminal attachment hole 24 LED
25 fixed contact part 30 connection terminal 31 attachment claw part 32 terminal part 40 rotation link mechanism part 41 first operation lever 42 second operation lever 43 first connection receiving part 44 second connection receiving part 45 first connection insertion part 46 first 2 connection insertion part 47 1st through hole 48 2nd through hole 49 Middle part 50 Contact spring 51 LED opening part 52 Hook part 53 Movable contact part 60 Plunger 61 Projection part 62 Locking protrusion 63 Groove part 70 Operation cover 71 Cover main body 72 Side wall Portion 73 Switch mounting portion 74 Operation hole 75 Annular wall portion 76 Cover mounting hole 80 Push button 81 Arrow 82 Hook portion 100 Base substrate 101 Switch mounting hole 102 Fixed contact portion 110 Panel 111 Opening portion 141 End portion 142 End portion 143 Intermediate point 144 Midpoint 200 External housing

Claims (5)

A push button switch attached to a base substrate having a fixed contact portion,
A box-shaped base;
A connection terminal that protrudes from the bottom surface of the base and contacts the fixed contact portion of the base substrate when attached to the base substrate;
An operation cover covering the base;
A push button which protrudes from the operation cover and is arranged so as to be pushed in;
A switch mounting portion for detachably mounting to the base substrate,
A pushbutton switch having play that is movable in an extending direction of the base substrate between the switch mounting portion and the base substrate when the switch is attached to the base substrate.   The push button switch according to claim 1, wherein the position of the push button switch is restricted by a panel that covers the base substrate when the base substrate is attached.   The push button switch according to claim 1, wherein the switch mounting portion is provided on the operation cover.   4. The contact point according to claim 1, wherein the connection terminal and the fixed contact portion of the base substrate have contact areas that can contact each other even if the connection terminal moves in the extending direction of the base substrate. A push button switch according to claim 1.   A plurality of push button switches according to any one of claims 1 to 4, wherein the switch unit is arranged in a line.

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