JP2012195072A - Push-button switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a push-button switch with a simple configuration.SOLUTION: A push-button switch 1 comprises a pair of oscillating members 125 inside. When a push-button part 11 is pressed, the oscillating members 125 rotate around an oscillation axis 41. A plate spring 124 is provided so as to extend from one of the oscillating members 125 to the other oscillating member 125. When the oscillating members 125 rotate, a central part 27 of the plate spring 124 increases in height, and a switching mechanism 26 is operated. The oscillating members 125 are in the form of plates, and are overlapped with the entire push-button part 11 in the longitudinal direction. Thereby, even if only an end of the push-button part 11 is pressed, the switching mechanism 26 can be reliably operated. Further, since the central part 27 of the plate spring 124 is depressed downward and the oscillating members 125 are in the form of plates, the push-button switch 1 can be formed with a low profile.

Description

  The present invention relates to a push button switch operated by pushing a push button portion.

  Conventionally, a thin push button switch has been adopted in an operation panel of an elevator. Examples of such push button switches include those disclosed in Patent Documents 1 to 4. In the push button switch disclosed in Patent Document 1, a parallel movement mechanism that moves up and down the operation plunger while maintaining a parallel state is configured by a member having a large number of levers and arm portions. In the pushbutton switch disclosed in Patent Document 2, a link mechanism that translates the pushbutton portion is configured by combining two lever members, two joint members, a switch actuating member, and the like.

  On the other hand, in the push button switch of Patent Document 3, the operation loads at arbitrary positions of the pressing operation plate are the same by arranging four operation pieces at the four corners of the switch. In the switch device of Patent Document 4, the contact operation is stabilized even if the end is pressed by combining two drive arms and two movable pieces.

JP 2001-93376 A JP 2003-272473 A JP 2003-257278 A JP 2006-100211 A

  By the way, the push button switches of Patent Documents 1 to 4 have a complicated structure, and thus the manufacturing cost increases. In particular, the push button switches disclosed in Patent Documents 1 and 2 have a large number of components, and the push button switch disclosed in Patent Document 3 requires complicated metal processing. As a result, there is a risk of instability of quality.

  The present invention has been made in view of the above problems, and has as its main object to simplify the structure of a push button switch.

  The invention according to claim 1 is a push button switch, and is arranged separately on the right and left between the bottom, the push button part located above the bottom part, and the bottom part and the push button part. A pair of oscillating members; a spring member existing from one to the other of the pair of oscillating members; and a switch mechanism located above the spring member, each of the pair of oscillating members, A first spring that is supported so as to be swingable about a swing shaft that is parallel to the bottom portion and that is perpendicular to the left-right direction, and that is in contact with the upper surface of the spring member on the outer side in the left-right direction with respect to the swing shaft. A contact portion, a second spring contact portion that is in contact with the lower surface of the spring member on the inner side in the left-right direction with respect to the first spring contact portion, an outer side in the left-right direction with respect to the swing shaft, and in the vertical direction Provided at both ends of the push button A button abutting portion that receives a downward force when descending, and the button abutting portion descends and at least one of the oscillating members oscillates, whereby the pair of oscillating members of the spring member And the switch mechanism is operated.

  A second aspect of the present invention is the push button switch according to the first aspect, wherein each of the pair of swing members is located on the inner side in the left-right direction with respect to the first spring contact portion. And a third spring contact portion in contact with the upper surface.

  The invention according to claim 3 is the push button switch according to claim 1 or 2, wherein the spring member is a leaf spring.

  Invention of Claim 4 is a pushbutton switch of Claim 3, Comprising: The said leaf | plate spring is provided with the hollow part hollowed downward between the said pair of rocking | fluctuation members, The said hollow part of The width in the left-right direction is larger than the width of the switch mechanism.

  A fifth aspect of the present invention is the push button switch according to any one of the first to fourth aspects, wherein each of the pair of swing members is a plate formed of resin.

  According to the present invention, the structure of the push button switch can be simplified. In the invention of claim 2, the entire push button portion can be lowered with a simple structure when the end is pushed.

  In the inventions of claims 3 to 5, the push button switch can be thinned.

It is a perspective view of a pushbutton switch. It is a perspective view of a pushbutton switch. It is a top view of a pushbutton switch. It is a front view of a push button switch. It is a disassembled perspective view of a pushbutton switch. It is a disassembled perspective view of a pushbutton switch. It is a perspective view of a rocking member. It is a top view which shows the inside of a pushbutton switch. It is sectional drawing of a pushbutton switch. It is sectional drawing of a pushbutton switch. It is sectional drawing of a pushbutton switch. It is sectional drawing of a pushbutton switch.

  1 is a perspective view including a top surface of a push button switch 1 according to a first embodiment of the present invention, FIG. 2 is a perspective view including a bottom surface, FIG. 3 is a plan view, and FIG. 4 is a front view. The push button switch 1 includes a push button portion 11 and a main body portion 12. The push button switch 1 is used for an operation panel of an elevator, but can be used for an operation panel of other equipment and various other uses.

  In the following description, the push button portion 11 side of the push button switch 1 is described as the upper side, and the main body portion 12 side is the lower side, but the vertical direction does not need to coincide with the gravity direction. Further, the left-right direction in FIG. 3 is referred to as “left-right direction”, and the up-down direction (that is, the direction perpendicular to the left-right direction and up-down direction in FIG. 4) is referred to as “vertical direction”. Of course, the left-right direction and the vertical direction do not need to be the left-right direction and the vertical direction as viewed from the person who operates the push button switch 1.

  The push button unit 11 moves downward when the operator pushes it downward with a finger. As a result, the push button switch 1 is turned on. When the finger is released from the push button unit 11, the push button unit 11 is lifted back to the original position and is turned off. The push button switch 1 may be in an off state only while being pressed, and may be in an on state while not being pressed. By incorporating the electronic circuit, each time the push button unit 11 is pressed, the on state and the off state may be switched, and a more complicated switching operation may be performed.

  As will be described later, a light source is built in the push button switch 1. For example, when the push button portion 11 is pressed, the push button portion 11 shines. The outer shape of the push button switch 1 is approximately a rectangular parallelepiped, and is square when viewed in plan. The external shape of the push button switch 1 may be arbitrarily changed, and may be a rectangle, a circle, an ellipse, or the like when viewed in plan. Further, the push button portion 11 does not have to be large enough to cover the entire upper portion of the main body portion 12, and may be smaller or larger than the main body portion 12.

  5 and 6 are exploded perspective views of the push button switch 1. FIG. 5 shows the upper surface side, and FIG. 6 shows the lower surface side. The push button switch 1 includes a panel 111, a panel holder 112, a reflector 121, a substrate 122, a protective rubber 123, a leaf spring 124, a pair of swing members 125, and a base portion 126.

  The push button portion 11 is configured by the panel 111 and the panel holder 112. The panel 111 is square and has translucency. The panel holder 112 has a square frame shape. The panel 111 is fitted and fixed inside the panel holder 112. The lower part of each side of the panel holder 112 is located slightly inside the outer shape of the panel holder 112, and the lower part is located inside the base part 126, whereby the movement of the push button part 11 is guided. The lower part of each of the left and right sides of the panel holder 112 has two projecting portions 21 that are divided into both end portions of the side and project downward. The lower part of each side on both sides in the vertical direction of the panel holder 112 has one protrusion 22 that protrudes downward at the center. The panel 111 and the panel holder 112 may be integrally formed.

  The reflector 121 has a square frame shape smaller than the panel holder 112. The surface of the reflector 121 is mirror-finished. The reflector 121 has four leg portions 23 protruding downward.

  The substrate 122 has four notches 24 corresponding to the leg portions 23. A plurality of LEDs (light emitting diodes) 25 are mounted on the upper surface of the substrate 122. The LED 25 is located inside the reflector 121. A switch mechanism 26 is mounted at the center of the lower surface of the substrate 122. The switch mechanism 26 is a small tact switch. Other electronic components are also mounted on the lower surface of the substrate 122.

  The protective rubber 123 covers the lower surface of the switch mechanism 26. As a result, an unnecessarily large force or impact is prevented from being applied to the switch mechanism 26, and the life of the switch mechanism 26 is improved. The leaf spring 124 is formed by bending a band-shaped metal member extending in the left-right direction. The central portion 27 of the leaf spring 124 is bent so as to protrude downward. The pair of swing members 125 are arranged on the left and right sides in the base portion 126. Each rocking member 125 has a plate shape extending in the vertical direction. The swing member 125 is molded from resin. Details of the swing member 125 will be described later. The leaf spring 124 exists from one swinging member 125 to the other swinging member 125.

  The base portion 126 has a lidless box shape. That is, the base portion 126 includes a square bottom portion 31 and a side wall portion 32 that protrudes upward from the outer edge portion of the bottom portion 31. By combining the base portion 126 and the push button portion 11, a space for accommodating the reflector 121, the substrate 122, the protective rubber 123, the leaf spring 124, and the swing member 125 is formed. Two rubber support portions 33 are provided at the center of the bottom portion 31, and four substrate support portions 34 are provided around the rubber support portions 33. The rubber support portion 33 and the substrate support portion 34 protrude upward from the bottom portion 31.

  The rubber support portion 33 is in contact with the protective rubber 123 and sandwiches the protective rubber 123 together with the substrate 122. The substrate support unit 34 contacts the lower surface of the substrate 122 and supports the substrate 122. The board support part 34 is provided with an engaging part that engages with the leg part 23 of the reflector 121 by a snap-fit structure. The leg portion 23 engages with the substrate support portion 34 through the notch 24 of the substrate 122. Accordingly, the substrate 122 is supported so as to be sandwiched between the reflector 121 and the substrate support portion 34.

  FIG. 7 is a perspective view of the swing member 125. FIG. 8 is a plan view in which the push button unit 11, the reflector 121, the substrate 122 and the protective rubber 123 are removed from the push button switch 1. FIG. 9 is a cross-sectional view of the pushbutton switch 1 at the position AA shown in FIG. The pair of swing members 125 are arranged separately on the left and right between the bottom 31 of the base portion 126 and the push button portion 11.

  7 and 8, the shaft 41 indicated by the alternate long and short dash line is a swing shaft that is the center of swing of the swing member 125. The swing shaft 41 is oriented in the longitudinal direction parallel to the bottom 31 of the base portion 126 and perpendicular to the left-right direction, and is spaced apart in the left-right direction. Protruding portions 421 that protrude along the swing shaft 41 are provided at both ends in the vertical direction of the swing member 125. Actually, the protrusions 421 are both end portions of the cylindrical portion 42 with the swing shaft 41 as the center. Since the protruding portion 421 is positioned in the recess 35 provided in the side wall portion 32 of the base portion 126, the swing member 125 is swingably supported. As shown in FIG. 9, the groove 36 is actually provided in the bottom 31 of the base portion 126, and the swinging is also guided by the cylindrical portion 42 being positioned on the groove 36.

  As shown in FIGS. 7 and 8, button abutting portions 43 are provided on the outer sides in the left-right direction of the swing member 125 and at both ends in the vertical direction. The button contact part 43 should just be provided at the both ends of the vertical direction at least, and may be further provided between both ends. Moreover, you may provide the button contact part 43 in the whole other end side from the one end side of the vertical direction. The button abutting portion 43 abuts on the protrusion 21 at the bottom of the panel holder 112 shown in FIG. The button contact portion 43 receives a downward force as the push button portion 11 is lowered. As a result, the right swinging member 125 rotates about the swinging shaft 41, the portion on the outer side in the left-right direction from the swinging shaft 41 is directed downward, and the portion on the inner side in the left-right direction is directed upward. The left oscillating member 125 also rotates about the oscillating shaft 41, and a portion outside the oscillating shaft 41 in the left-right direction is directed downward and a portion inside the left-right direction is directed upward. Further, when the upper right or lower right part of the push button portion 11 in FIG. 3 is pressed, at least the right swing member 125 rotates and the upper left or lower left portion of the push button part 11 is pressed. At least the left swing member 125 rotates.

  The swing member 125 is provided with a spring mounting portion 44 between the button contact portions 43 arranged in the vertical direction. The spring mounting portion 44 need not be provided on the outermost side of the swing member 125 as long as it is positioned on the outer side in the left-right direction with respect to the swing shaft 41. As shown in FIGS. 8 and 9, the spring attachment portion 44 is in contact with the upper surfaces of both end portions of the leaf spring 124. A spring support portion 45 that protrudes inward is provided at the center in the vertical direction of the swing member 125 and on the inner side in the left-right direction of the swing shaft 41. The spring support 45 abuts on the lower surface of the leaf spring 124.

  In the state shown in FIG. 9, when the central portion of the push button portion 11 is pressed, the two protrusions 21 on the right side of the panel holder 112 (see FIG. 6) are brought into contact with the two button contact portions 43 of the swing member 125 on the right side. ) And the right swing member 125 rotates clockwise about the swing shaft 41. Further, the two protrusions 21 on the left side of the panel holder 112 abut on the two button contact portions 43 of the left swing member 125, and the left swing member 125 rotates counterclockwise about the swing shaft 41. To turn. Accordingly, both end portions of the leaf spring 124 are directed downward by the spring mounting portion 44, and the central portion 27 of the leaf spring 124 is directed upward by the spring support portion 45. As shown in FIG. 10, the switch mechanism 26 positioned above the central portion 27 is operated by raising the central portion 27. Precisely, the switch mechanism 26 is operated via the protective rubber 123 shown in FIG.

  The leaf spring 124 always applies a counterclockwise force (torque) to the right swing member 125 and applies a clockwise force to the left swing member 125. Therefore, when the operator's finger is separated from the push button portion 11, the right swing member 125 rotates counterclockwise about the swing shaft 41 by the force of the leaf spring 124 (and the force from the switch mechanism 26). The left oscillating member 125 rotates clockwise about the oscillating shaft 41, and the push button portion 11 is raised to return to the state shown in FIG. The push button portion 11 abuts the base portion 126 in the vertical direction at a portion not shown in FIG. 9, and the push button portion 11 does not come out of the base portion 126. Thus, in the push button switch 1, it is not necessary to provide a spring for returning the push button portion 11 separately.

  From the state before the swing member 125 starts to rotate to the state after the rotation, the upper surfaces of both end portions of the leaf spring 124 are always in contact with the spring mounting portion 44 and apply an upward force. The initial force for pushing the push button portion 11 is determined by the leaf spring 124. The spring support portion 45 is in contact with the lower surface of the leaf spring 124 when the push button portion 11 is pushed in, but is not necessarily in contact with the lower surface of the leaf spring 124 in the state of FIG.

  When the portion on the right side of the push button portion 11 and the center in the vertical direction is pressed, the two protrusion portions 21 on the right side of the panel holder 112 abut on the two button abutment portions 43 of the swing member 125 on the right side. When the upper right portion in FIG. 3 of the push button portion 11 is pressed, the protrusion 21 comes into contact with the upper button contact portion 43 in FIG. 8 of the right swing member 125. When the lower right portion in FIG. 3 of the push button portion 11 is pressed, the protrusion 21 comes into contact with the lower button contact portion 43 in FIG.

  Similarly, when the left portion of the push button portion 11 and the central portion in the vertical direction are pressed, the two protrusion portions 21 on the left side of the panel holder 112 abut on the two button abutting portions 43 of the left swing member 125. . When the upper left portion of the push button portion 11 in FIG. 3 is pressed, the protrusion 21 comes into contact with the upper button contact portion 43 in FIG. 8 of the left swing member 125. When the lower left portion in FIG. 3 of the push button portion 11 is pressed, the protrusion 21 comes into contact with the lower button contact portion 43 in FIG. 8 of the left swing member 125. Further, when the upper portion of the push button portion 11 in FIG. 3 and the central portion in the left-right direction is pressed, the upper button contact portion 43 of the right swing member 125 in FIG. 8 and the left swing member 125 are illustrated. 8 is in contact with the upper button contact portion 43 in FIG. Similarly, when the lower portion of the push button portion 11 in FIG. 3 and the central portion in the left-right direction is pushed, the lower button contact portion 43 in FIG. 8 of the right swing member 125 and the left swing member in FIG. The protrusion 21 comes into contact with the lower button contact portion 43 in FIG.

  As described above, the button abutting portion 43 pressed by the push button portion 11 changes depending on the pressing position of the push button portion 11. However, even when any position of the push button portion 11 is pushed, at least one button abutting portion 43 is pushed by the push button portion 11 and at least one swing member 125 moves the swing shaft 41. Rotates as the center. Even when any of the button contact portions 43 is pressed, the swinging member 125 applies the same force to the leaf spring 124 by the spring mounting portion 44 and the spring support portion 45 when rotating. give. Thereby, even if the arbitrary position of the push button part 11 is pressed, the switch mechanism 26 can be reliably operated.

  In the push button switch 1 according to the first embodiment, a mechanism for transmitting the lowering of the push button portion 11 to the switch mechanism 26 is substantially realized by a pair of swing members 125 and a leaf spring 124. Thereby, the structure of the push button switch 1 can be simplified, and the manufacturing cost of the push button switch 1 can be reduced.

  The swing member 125 has a plate-like member provided with a button contact portion 43, a spring mounting portion 44, and a spring support portion 45. By making the swing member 125 such a simple plate-like structure and molding it with resin, the manufacturing cost of the push button switch 1 can be further reduced. Further, the push button switch 1 can be thinned.

  In addition, in the push button switch 1, since the leaf spring 124 has a strip shape, the leaf spring 124 can be manufactured at low cost from the original material. The central portion 27 of the leaf spring 124 is a portion between the pair of swinging members 125 and is a recessed portion that is recessed downward. The width of the recessed portion in the left-right direction is larger than the width of the switch mechanism 26. . Accordingly, the push button switch 1 can be thinned while avoiding the portions other than the central portion 27 of the leaf spring 124 from interfering with the switch mechanism 26 in the left-right direction and the vertical direction.

  In the push button switch 1, the swinging member 125 is provided on the left and right, and the swinging member 125 overlaps the entire vertical direction of the push button portion 11, so that the so-called end push that pushes the corner of the push button portion 11 is performed. Even at this time, at least one of the swinging members rotates to raise the central portion 27 of the leaf spring 124, and the switch mechanism 26 is operated. Thereby, operation of the pushbutton switch 1 can be performed reliably.

  In the push button switch 1, the magnitude of the force required to operate the push button switch can be easily changed by changing to the leaf spring 124 having different rigidity. Further, by changing the leaf spring 124 and changing the force that the end of the leaf spring 124 gives to the spring mounting portion 44 in the state shown in FIG. 9, the initial force when pushing the push button portion 11 is changed. be able to.

  Further, by changing the design of the swing member 125 and changing the distance from the swing shaft 41 to the tip of the spring support 45 indicated by reference numeral 451 in FIG. It can be easily changed. Thereby, it can respond easily to the change of the switch mechanism 26 employ | adopted. When the design of the swing member 125 and the base portion 126 is changed, the push amount of the push button portion 11 and the operation stroke of the switch mechanism 26 are changed by changing the distance in the left-right direction from the swing shaft 41 to the button contact portion 43. Can be changed in various ways.

  As described above, the push button switch 1 can easily cope with various specification changes according to the use of the push button switch 1 by simple design changes such as the leaf spring 124 and the swing member 125. The same applies to other embodiments described below.

  FIG. 11 is a cross-sectional view of the push button switch 1a according to the second embodiment of the present invention, and corresponds to the state of FIG. In the push button switch 1 a, a spring holding portion 46 is provided above the spring support portion 45 of the swing member 125. The spring holding portion 46 is in contact with the upper surface of the leaf spring 124. Specifically, projecting portions projecting upward from the spring support portion 45 are provided on both sides (in the longitudinal direction) of the leaf spring 124, and the projecting portions are slightly so as to approach each other toward the upper surface of the leaf spring 124. A protruding protrusion is provided as the spring holding portion 46. The spring holding portion 46 is in contact with the upper surface of the leaf spring 124 so as to be caught. On the spring support portion 45, the leaf spring 124 is held so as to be sandwiched between the spring support portion 45 and the spring holding portion 46.

  In the push button switch 1a, when the push button portion 11 is pushed to the end and one swinging member 125 rotates, the central portion 27 of the leaf spring 124 rises and the switch mechanism 26, as in the first embodiment. Is operated. At this time, in the other swing member 125, the spring holding portion 46 is lifted by the leaf spring 124, the spring support portion 45 is raised, and the spring mounting portion 44 is lowered. As a result, the push button portion 11 also descends on the other swing member 125 side, and the entire push button portion 11 descends. When the finger is released from the push button portion 11, both the swinging members 125 are rotated by the restoring force of the leaf spring 124, and the push button portion 11 returns to the original height, as in the first embodiment. .

  Thus, since the two rocking members 125 are interlocked when the end is pushed, the pushing load can be made substantially the same when the center of the push button portion 11 is pushed and when the end is pushed. As a result, operability is improved. In addition, since the push button portion 11 is lowered with little inclination when the end is pushed, sliding contact between the push button portion 11 and the base portion 126 can be reduced. Note that the relationship between the pressed position of the push button portion 11 and the position of the pressed button contact portion 43 is the same as in the first embodiment.

  Further, the push button switch 1a has a simple structure as in the first embodiment, and the manufacturing cost of the push button switch 1a can be reduced. The push button switch 1a can be easily reduced in thickness.

  In the above operation, the spring mounting portion 44 is regarded as a first spring contact portion that is in contact with the upper surface of the leaf spring 124 on the outer side in the left-right direction of the swing shaft 41, and the spring support portion 45 is positioned on the inner side in the left-right direction of the swing shaft 41. When the spring holding portion 46 is regarded as a third spring contact portion that is in contact with the upper surface of the leaf spring 124 on the inner side in the left-right direction with respect to the swing shaft 41, the second spring contact portion is in contact with the lower surface of the leaf spring 124. When the push button portion 11 is pushed, the central portion 27 of the leaf spring 124 rises and the switch mechanism 26 is operated by the first spring contact portion and the second spring contact portion. Then, the other swing member 125 is also rotated by the third spring contact portion. As a result, the entire push button portion 11 is lowered with almost no inclination. When the finger is released from the push button portion 11, the first spring contact portion and the second spring contact portion cause both swinging members 125 to return to the original posture, and the push button portion 11 is raised to the original position. In addition, the function of the 1st spring contact part in the said description and a 2nd spring contact part is the same also in 1st Embodiment.

  In the first and second embodiments, the second spring contact portion that is the spring support portion 45 is provided on the inner side in the left-right direction with respect to the swing shaft 41, but the second spring contact portion is more than the first spring contact portion. If it is provided inside, it may be located outside the swing shaft 41. In FIG. 11, the third spring contact portion is provided on the inner side in the left-right direction with respect to the swing shaft 41. However, if the third spring contact portion is provided on the inner side in the left-right direction with respect to the first spring contact portion, The moving shaft 41 may be provided on the outer side in the left-right direction.

  Furthermore, in the pushbutton switch 1 according to the first embodiment, the spring mounting portion 44 may be extended inward in the left-right direction as shown in FIG. As a result, the upper surface of the end portion of the leaf spring 124 comes into contact with a wide surface, the outer side portion 441 of the spring mounting portion 44 functions as the first spring contact portion, and the inner side portion 442 of the left and right direction is the third spring. Functions as a contact part. Also by such a spring mounting portion 44, the entire push button portion 11 can be lowered by interlocking the two swinging members 125 when the end is pushed.

  Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made.

  For example, the leaf spring 124 may be a rod-shaped spring member. Even if it is rod-shaped, the first spring contact portion and the third spring contact portion are in contact with a portion that can be regarded as the upper surface of the spring member, and the second spring contact portion is positioned as a portion that can be regarded as the lower surface of the spring member. By touching, the same push button switch as in the first and second embodiments is realized. Even if the spring member is rod-shaped, the central portion in contact with the switch mechanism 26 is preferably wide and flat. The spring member may be variously changed in material and shape as long as the spring member is an elastic body that can be bent so that the central portion moves up and down between the swing members 125.

  The push button unit 11 may be circular, elliptical, octagonal, or the like. The swing member 125 may be longer in the vertical direction than the push button portion 11. In this case, the button contact portions 43 are provided at both longitudinal ends of the region overlapping the push button portion 11 of the swing member 125. As described above, the button abutting portion 43 does not need to be provided at the end as long as it is located at approximately both ends in the longitudinal direction of the swing member 125.

  The leaf spring 124, which is a spring member, may not be arranged at the center in the vertical direction. The leaf springs 124 may be disposed so as to be biased upward or downward in FIG. 8, avoiding the light source that illuminates the panel 111. Thereby, the freedom degree of arrangement | positioning of other components becomes high. Two leaf springs 124 may be arranged vertically in FIG. In this case, the two switch mechanisms 26 are disposed above the central portion 27 of the two leaf springs 124. By providing the two switch mechanisms 26, the reliability of the push button switch can be enhanced.

  The switch mechanism 26 does not have to be located completely in the center of the leaf spring 124, but may be located above a portion that can be regarded as a central portion. Further, the switch mechanism 26 does not necessarily have to be positioned above the central portion as long as it is above the leaf spring 124 (may or may not contact the leaf spring 124). When the push button portion 11 is pressed, the portion between at least the pair of swing members 125 of the leaf spring 124 rises. If the push mechanism 11 can be operated at this raised portion, the switch mechanism 26 is moved to the leaf spring 124. It can be arranged at various positions above. Note that the pair of swing members 125 need not have symmetrical shapes. Various types of switch mechanisms 26 may be employed. Depending on the structure of the switch mechanism 26, the protective rubber 123 may be omitted.

  The swing member 125 may be formed of a material other than resin. The swing member 125 may not be plate-shaped. If the swing member 125 is supported so as to be swingable about the swing shaft 41, it is not necessary to be supported at both ends in the vertical direction. However, the shape of the swing member 125 can be simplified by supporting the both ends.

  The push button switch is not necessarily provided with an illumination unit such as the LED 25. The panel 111 may be illuminated or emitted by other methods. For example, a light guide plate may be provided on the upper surface of the substrate 122, and the LED may be mounted on the substrate 122 so as to face the edge of the light guide plate, thereby causing the light guide plate to emit light, thereby illuminating the panel 111. .

  The configurations in the above-described embodiments and modifications may be combined as appropriate as long as they do not contradict each other.

  The present invention can be used as a push button switch for operation panels of various devices, and can also be used as a push button switch for various other purposes.

1, 1a Push button switch 11 Push button part 26 Switch mechanism 27 Center part (recessed part)
31 Bottom part 41 Oscillating shaft 43 Button contact part 44 Spring mounting part (first spring contact part)
45 Spring support (second spring contact part)
46 Spring holding part (third spring contact part)
124 Leaf spring (spring member)
125 Swing member

Claims (5)

A push button switch,
The bottom,
A push button portion located above the bottom;
A pair of oscillating members arranged separately on the left and right between the bottom part and the push button part;
A spring member existing from one to the other of the pair of swing members;
A switch mechanism located above the spring member;
With
Each of the pair of swing members is
It is supported so as to be able to swing around a swinging shaft that is parallel to the bottom and that faces the vertical direction perpendicular to the left-right direction,
A first spring contact portion that is in contact with the upper surface of the spring member on the outer side in the left-right direction with respect to the swing shaft;
A second spring contact portion in contact with the lower surface of the spring member on the inner side in the left-right direction than the first spring contact portion;
A button abutting portion that is provided on both ends in the left-right direction and in the longitudinal direction with respect to the swing shaft, and receives a downward force when the push button portion is lowered;
With
When the button abutting portion is lowered and at least one of the swinging members swings, a portion of the spring member between the pair of swinging members is lifted to operate the switch mechanism. And push button switch. The push button switch according to claim 1,
Each of the pair of swing members further includes a third spring contact portion that contacts the upper surface of the spring member on the inner side in the left-right direction with respect to the first spring contact portion. The push button switch according to claim 1 or 2,
The push button switch, wherein the spring member is a leaf spring. A push button switch according to claim 3,
The leaf spring includes a hollow portion that is recessed downward between the pair of swing members,
The push button switch, wherein a width of the hollow portion in the left-right direction is larger than a width of the switch mechanism. The push button switch according to any one of claims 1 to 4,
Each of said pair of rocking | fluctuation members is the plate shape shape | molded by resin, The pushbutton switch characterized by the above-mentioned.

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