JP2021190370A - Illumination structure of switch knob - Google Patents

Illumination structure of switch knob Download PDF

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Publication number
JP2021190370A
JP2021190370A JP2020096923A JP2020096923A JP2021190370A JP 2021190370 A JP2021190370 A JP 2021190370A JP 2020096923 A JP2020096923 A JP 2020096923A JP 2020096923 A JP2020096923 A JP 2020096923A JP 2021190370 A JP2021190370 A JP 2021190370A
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switch knob
wall portion
light
switch
light source
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JP2020096923A
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JP7468161B2 (en
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峻 下山
Takeshi Shimoyama
賢 小河原
Masaru Ogawara
亮 古川
Akira Furukawa
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JVCKenwood Corp
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JVCKenwood Corp
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Priority to JP2024026384A priority patent/JP2024057023A/en
Priority to JP2024026383A priority patent/JP2024057022A/en
Priority to JP2024026385A priority patent/JP2024057024A/en
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  • Push-Button Switches (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

To illuminate a predetermined portion of a switch knob with more uniform brightness.SOLUTION: An illumination structure 10 of a switch knob 1 includes a tact switch 2, a switch knob 1, a light source 6, and a push boss 3, and the push boss 3 includes a pressure receiving surface 3a that receives pressing force of the switch knob 1, and a wall portion 3b provided at a position different from the pressure receiving surface 3a.SELECTED DRAWING: Figure 4

Description

本発明は、スイッチノブの照明構造に関する。 The present invention relates to a lighting structure of a switch knob.

特許文献１には、スイッチノブを押し下げることで、スイッチノブの所定部位を照明させるスイッチノブの照明構造が記載されている。 Patent Document 1 describes a lighting structure of a switch knob that illuminates a predetermined portion of the switch knob by pushing down the switch knob.

特開平７−１０５７８３号公報Japanese Unexamined Patent Publication No. 7-105783

特許文献１に記載されたスイッチノブの照明構造は、光源から出射した光のうち、照明させる所定部位に光ムラが発生して外観見栄えとして必ずしも十分とはいえない。そのため、所定部位を均一発光させることが容易ではない場合があり、改善の余地がある。 The lighting structure of the switch knob described in Patent Document 1 is not always sufficient in terms of appearance because light unevenness occurs in a predetermined portion of the light emitted from the light source to be illuminated. Therefore, it may not be easy to make a predetermined portion emit light uniformly, and there is room for improvement.

本発明は、上記に鑑みてなされたものであって、スイッチノブの所定部位を光ムラ無く、均一発光できるスイッチノブの照明構造を提供する。 The present invention has been made in view of the above, and provides an illumination structure of a switch knob capable of uniformly emitting light at a predetermined portion of the switch knob without uneven light.

上述した課題を解決し、目的を達成するために、本発明に係るスイッチノブの照明構造は、使用者の押下反応を電気信号に変換するタクトスイッチと、前記タクトスイッチの配置された基板から離間した表面部に配置され、前記タクトスイッチに対応したスイッチノブと、前記基板に配置され、前記表面部における前記スイッチノブの所定部位を照明する光源と、前記タクトスイッチと前記スイッチノブとの間に配置され、前記スイッチノブからの前記使用者の押下反応を前記タクトスイッチに伝達する押しボスと、を備え、前記押しボスは、前記スイッチノブの押下力を受ける受圧面部と、前記受圧面部と異なる位置に設けられた壁部と、を有することを特徴とする。 In order to solve the above-mentioned problems and achieve the object, the lighting structure of the switch knob according to the present invention is separated from the tact switch that converts the pressing reaction of the user into an electric signal and the substrate on which the tact switch is arranged. Between the tact switch and the switch knob, a switch knob arranged on the surface portion and corresponding to the tact switch, a light source arranged on the substrate and illuminating a predetermined portion of the switch knob on the surface portion, and the tact switch and the switch knob. A push boss that is arranged and transmits the push reaction of the user from the switch knob to the tact switch is provided, and the push boss is different from the pressure receiving surface portion that receives the pressing force of the switch knob and the pressure receiving surface portion. It is characterized by having a wall portion provided at a position.

本発明によれば、スイッチノブの所定部位を光ムラ無く、均一発光できるという効果が奏される。 According to the present invention, there is an effect that a predetermined portion of the switch knob can emit light uniformly without unevenness of light.

図１は、第一実施形態に係るスイッチノブの照明構造を備える電子機器の一部を示す前面図である。FIG. 1 is a front view showing a part of an electronic device including the lighting structure of the switch knob according to the first embodiment. 図２は、第一実施形態に係るスイッチノブの照明構造を図１のＡ−Ａ線の断面で示す縦断面図である。FIG. 2 is a vertical cross-sectional view showing the illumination structure of the switch knob according to the first embodiment with a cross section taken along the line AA of FIG. 図３は、第一実施形態に係るスイッチノブの照明構造を後側から見て示す後面斜視図である。FIG. 3 is a rear perspective view showing the lighting structure of the switch knob according to the first embodiment as viewed from the rear side. 図４は、第一実施形態に係るスイッチノブの照明構造における反射光の光路を示す説明図である。FIG. 4 is an explanatory diagram showing an optical path of reflected light in the lighting structure of the switch knob according to the first embodiment. 図５は、第一実施形態に係るスイッチノブの照明構造における照明状態を比較例と比較して示す説明図である。FIG. 5 is an explanatory diagram showing a lighting state in the lighting structure of the switch knob according to the first embodiment in comparison with a comparative example.

以下に添付図面を参照して、本発明に係るスイッチノブの照明構造の実施形態が詳細に説明されている。なお、以下の実施形態により本発明が限定されるものではない。 Hereinafter, embodiments of the lighting structure of the switch knob according to the present invention are described in detail with reference to the accompanying drawings. The present invention is not limited to the following embodiments.

［第一実施形態］
＜電子機器１００の構成＞
図１は、第一実施形態に係るスイッチノブ１の照明構造１０を備える電子機器１００の一部を示す前面図である。説明の便宜上、上下左右前後の各方向を、図１に示される矢印の方向に規定する。この上下左右前後の各方向は、照明構造１０の使用姿勢などでの方向を限定するものではない。また、他の図面も図１の方向に従っている。 [First Embodiment]
<Configuration of electronic device 100>
FIG. 1 is a front view showing a part of an electronic device 100 including the lighting structure 10 of the switch knob 1 according to the first embodiment. For convenience of explanation, each direction of up, down, left, right, front and back is defined as the direction of the arrow shown in FIG. The directions of up, down, left, right, front and back do not limit the direction in the usage posture of the lighting structure 10. The other drawings also follow the direction of FIG.

スイッチノブ１は、電子機器１００の操作パネル１０１に備えられたシーソースイッチである。電子機器１００は、例えばカーナビゲーション装置である。図１では、電子機器１００の一部が開示されている。図１に示されるように、スイッチノブ１は、操作パネル１０１に設けられた透光部１０２内に配置され、前面視での外形が６星形を呈する部材である。 The switch knob 1 is a seesaw switch provided on the operation panel 101 of the electronic device 100. The electronic device 100 is, for example, a car navigation device. In FIG. 1, a part of the electronic device 100 is disclosed. As shown in FIG. 1, the switch knob 1 is a member arranged in a translucent portion 102 provided on the operation panel 101 and having a hexagram-shaped outer shape when viewed from the front.

＜スイッチノブ１の照明構造１０の構成＞
図２は、第一実施形態に係るスイッチノブ１の照明構造１０を図１のＡ−Ａ線の断面で示す縦断面図である。図２に示されるように、スイッチノブ１は、基板１１から離間した操作パネル１０１の前側の表面部１０１ａに配置されている。スイッチノブ１は、使用者の押下反応に応じてシーソー移動する。スイッチノブ１は、タクトスイッチ２を使用者の押下反応に対応させてオンとオフとを切り替える。スイッチノブ１には、図示しない突起部が形成され、突起部の感触によって使用者がスイッチノブ１でのスイッチ操作の指で押す位置を触感で案内できてもよい。 <Structure of lighting structure 10 of switch knob 1>
FIG. 2 is a vertical cross-sectional view showing the illumination structure 10 of the switch knob 1 according to the first embodiment in a cross section taken along the line AA of FIG. As shown in FIG. 2, the switch knob 1 is arranged on the front surface portion 101a of the operation panel 101 separated from the substrate 11. The switch knob 1 moves the seesaw according to the pressing reaction of the user. The switch knob 1 switches the tact switch 2 on and off in response to the user's pressing response. A protrusion (not shown) is formed on the switch knob 1, and the user may be able to tactilely guide the position to be pressed by the finger of the switch operation on the switch knob 1 by the touch of the protrusion.

タクトスイッチ２は、スイッチノブ１に対する使用者の押下反応を電気信号に変換する。タクトスイッチ２は、基板１１に配置されている。タクトスイッチ２とスイッチノブ１との間には、押しボス３が介在している。 The tact switch 2 converts the user's pressing reaction to the switch knob 1 into an electric signal. The tact switch 2 is arranged on the substrate 11. A push boss 3 is interposed between the tact switch 2 and the switch knob 1.

操作パネル１０１の表面部１０１ａに形成されたスイッチノブ１の外周部には、スイッチノブ１の外周部と離間した操作パネル１０１の表面部１０１ａとの間に、ここでは透光部１０２によって形成された照明部４が形成されている。照明部４は、操作パネル１０１の表面に形成されたスイッチノブ１の外周部の周りの間隙によって形成された領域である。照明部４が隙間で形成されることによって、スイッチノブ１の操作性が担保されている。すなわち、照明部４が隙間で形成されることによって、スイッチノブ１では、夜間に照明によって透光部１０２から光が漏れ、スイッチノブ１の搭載位置が分かり易くなっている。図１に示されるように、この例において、照明部４は、６星形マーク「星」の輪郭形状に形成されている。なお、照明部４は、隙間ではなく、透明部材などによって覆われた透光部材で形成されてもよい。 The outer peripheral portion of the switch knob 1 formed on the surface portion 101a of the operation panel 101 is formed by a translucent portion 102 between the outer peripheral portion of the switch knob 1 and the surface portion 101a of the operation panel 101 separated from the outer peripheral portion. The lighting unit 4 is formed. The illumination unit 4 is a region formed by a gap around the outer peripheral portion of the switch knob 1 formed on the surface of the operation panel 101. The operability of the switch knob 1 is ensured by forming the illumination unit 4 in the gap. That is, since the illumination unit 4 is formed in the gap, light leaks from the translucent unit 102 by illumination at night in the switch knob 1, making it easy to understand the mounting position of the switch knob 1. As shown in FIG. 1, in this example, the illumination unit 4 is formed in the contour shape of the 6-star mark “star”. The illumination unit 4 may be formed of a translucent member covered with a transparent member or the like instead of a gap.

タクトスイッチ２とスイッチノブ１との間には、押しボス３が配置されている。押しボス３は、スイッチノブ１からの使用者の押下反応をタクトスイッチ２に伝達する。押しボス３は、スイッチノブ１の内面における突起部に対応した位置に立てて設けられている。スイッチノブ１と押しボス３との間に、図示しない弾性部材が介装されている。弾性部材は、スイッチノブ１を前側に付勢している。押しボス３は、弾性部材を介してスイッチノブの押下力を受ける。 A push boss 3 is arranged between the tact switch 2 and the switch knob 1. The push boss 3 transmits the push reaction of the user from the switch knob 1 to the tact switch 2. The push boss 3 is provided upright at a position corresponding to a protrusion on the inner surface of the switch knob 1. An elastic member (not shown) is interposed between the switch knob 1 and the push boss 3. The elastic member urges the switch knob 1 to the front side. The push boss 3 receives the pushing force of the switch knob via the elastic member.

スイッチノブ１は、透光部１０２内にて、使用者の指などによる外力を付与されて、弾性部材の付勢力に抗して上下左右端などを後側に押し込み可能である。スイッチノブ１は、そのスイッチノブ１を押している指を離すと、弾性部材の弾性反発力によって通常姿勢に復帰する。 The switch knob 1 is capable of pushing the upper, lower, left, and right ends to the rear side against the urging force of the elastic member by applying an external force by the user's finger or the like in the translucent portion 102. When the finger pushing the switch knob 1 is released, the switch knob 1 returns to the normal posture due to the elastic rebound force of the elastic member.

基板１１は、スイッチノブ１と離間してスイッチノブ１と平行に設置されている。基板１１には、操作パネル１０１の表面部１０１ａにおけるスイッチノブ１の所定部位を照明する光源６が配置されている。光源６は、照明部４に光を出射するように照明部４に対応して基板１１上に実装されている。光源６は、例えばＬＥＤチップであり、タクトスイッチ２のスイッチ動作に伴い又は車両のヘッドライトスイッチに連動して、オン状態で発光し、オフ状態で消灯する。 The substrate 11 is separated from the switch knob 1 and installed in parallel with the switch knob 1. A light source 6 that illuminates a predetermined portion of the switch knob 1 on the surface portion 101a of the operation panel 101 is arranged on the substrate 11. The light source 6 is mounted on the substrate 11 corresponding to the illumination unit 4 so as to emit light to the illumination unit 4. The light source 6 is, for example, an LED chip, and emits light in the on state and turns off in the off state with the switch operation of the tact switch 2 or in conjunction with the headlight switch of the vehicle.

タクトスイッチ２の前側には、スイッチ動作をさせるために押圧されるプッシュ部２ａが設けられている。プッシュ部２ａは、スイッチノブ１が通常姿勢にあるときに押しボス３の先端部とは前側に離隔し、スイッチノブ１の所定部位が後側に向けて押されたときに押しボス３の先端部によって押される。これにより、タクトスイッチ２が押しボス３に合わせて動作する。 A push portion 2a that is pressed to operate the switch is provided on the front side of the tact switch 2. The push portion 2a is separated from the tip portion of the push boss 3 on the front side when the switch knob 1 is in the normal posture, and the tip portion of the push boss 3 is pushed toward the rear side when a predetermined portion of the switch knob 1 is pushed toward the rear side. Pushed by the part. As a result, the tact switch 2 operates in accordance with the push boss 3.

＜押しボス３の構成＞
図３は、第一実施形態に係るスイッチノブ１の照明構造１０を後側から見て示す後面斜視図である。図４は、第一実施形態に係るスイッチノブ１の照明構造１０における反射光Ｒｌの光路を示す説明図である。以下の説明において、理解容易のため、光源６は点光源としての発光部Ｌｐから光を出力するものとする。 <Structure of push boss 3>
FIG. 3 is a rear perspective view showing the lighting structure 10 of the switch knob 1 according to the first embodiment as viewed from the rear side. FIG. 4 is an explanatory diagram showing an optical path of reflected light Rl in the illumination structure 10 of the switch knob 1 according to the first embodiment. In the following description, for the sake of easy understanding, the light source 6 shall output light from the light emitting unit Lp as a point light source.

図３に示されるように、押しボス３は、横断面形状において、受圧面部３ａと、壁部３ｂと、を有する。押しボス３は、横断面形状全体として、例えば略Ｕ字形状を呈してもよい。押しボス３は、光を透過する透光部材であるとよい。押しボス３は、照明部４の形状によっては、光を透過しない非透光部材でもよい。 As shown in FIG. 3, the push boss 3 has a pressure receiving surface portion 3a and a wall portion 3b in a cross-sectional shape. The push boss 3 may have, for example, a substantially U-shape as the entire cross-sectional shape. The push boss 3 may be a translucent member that transmits light. The push boss 3 may be a non-transmissive member that does not transmit light, depending on the shape of the illumination unit 4.

スイッチノブ１の押下力は押しボス３に伝達され、受圧面部３ａを介してタクトスイッチ２に伝達される。 The pressing force of the switch knob 1 is transmitted to the push boss 3 and is transmitted to the tact switch 2 via the pressure receiving surface portion 3a.

壁部３ｂは、受圧面部３ａと異なる位置に設けられている。すなわち、壁部３ｂは、受圧面部３ａにおける操作パネル１０１の裏側にて受圧面部３ａから伸びて腕部３ｃによって形成されている。壁部３ｂは、受圧面部３ａとともに操作パネル１０１の裏側に接触している。壁部３ｂは、受圧面部３ａから前後以外の方向に伸びた腕部３ｃに形成されている。腕部３ｃは、一対設けられている。壁部３ｂは、押しボス３と一体成型されている。図４に示されるように、一対の腕部３ｃは、スイッチノブ１の所定部位の一部Ｐと光源６とを結ぶ上下方向の仮想直線Ｂに対して線対称に受圧面部３ａから左右両側に伸びた後に下方向に伸びて形成されている。なお、一対の腕部３ｃは、円弧状で線対称に受圧面部３ａから左右両側から下方向に向けて伸びて形成されてもよい。 The wall portion 3b is provided at a position different from that of the pressure receiving surface portion 3a. That is, the wall portion 3b extends from the pressure receiving surface portion 3a on the back side of the operation panel 101 in the pressure receiving surface portion 3a and is formed by the arm portion 3c. The wall portion 3b is in contact with the back side of the operation panel 101 together with the pressure receiving surface portion 3a. The wall portion 3b is formed on the arm portion 3c extending from the pressure receiving surface portion 3a in a direction other than the front and back. A pair of arm portions 3c are provided. The wall portion 3b is integrally molded with the push boss 3. As shown in FIG. 4, the pair of arm portions 3c are line-symmetrically symmetrical with respect to the vertical virtual straight line B connecting a part P of a predetermined portion of the switch knob 1 and the light source 6 on both the left and right sides from the pressure receiving surface portion 3a. It is formed by extending downward after being extended. The pair of arm portions 3c may be formed in an arc shape and line-symmetrically extending downward from both the left and right sides from the pressure receiving surface portion 3a.

一対の腕部３ｃにおける上下方向の仮想線に対して線対称に受圧面部３ａから左右両側に伸びた部位が直交腕部３ｃ１である。図４に示されるように、直交腕部３ｃ１は、壁部３ｂの反射面３ｄによって反射光で照明するスイッチノブ１の所定部位の一部Ｐから壁部３ｂの反射面３ｄまでの間に、壁部３ｂの反射面３ｄによって反射光Ｒｌで照明するスイッチノブ１の所定部位の一部Ｐと光源６とを結ぶ仮想直線Ｂに対して直交して伸びている。直交腕部３ｃ１は、反射光Ｒｌの光路を阻害しない位置に配置されている。 The orthogonal arm portion 3c1 is a portion of the pair of arm portions 3c extending from the pressure receiving surface portion 3a to the left and right sides in line symmetry with respect to the virtual line in the vertical direction. As shown in FIG. 4, the orthogonal arm portion 3c1 is formed between a part P of a predetermined portion of the switch knob 1 illuminated by the reflecting surface 3d of the wall portion 3b and the reflecting surface 3d of the wall portion 3b. It extends orthogonally to a virtual straight line B connecting a part P of a predetermined portion of the switch knob 1 illuminated by the reflected light Rl by the reflecting surface 3d of the wall portion 3b and the light source 6. The orthogonal arm portion 3c1 is arranged at a position that does not obstruct the optical path of the reflected light Rl.

図３に示されるように、一対の腕部３ｃのそれぞれの壁部３ｂは、それぞれの腕部３ｃの先端部から下方に向けて伸びている。図４に示されるように、壁部３ｂは、壁部３ｂによって反射光Ｒｌで照明するスイッチノブ１の所定部位の一部Ｐと光源６とを結ぶ上下方向の仮想直線Ｂに対して平行な反射面３ｄを有する。 As shown in FIG. 3, each wall portion 3b of the pair of arm portions 3c extends downward from the tip portion of each arm portion 3c. As shown in FIG. 4, the wall portion 3b is parallel to the vertical virtual straight line B connecting a part P of a predetermined portion of the switch knob 1 illuminated by the wall portion 3b with the reflected light Rl and the light source 6. It has a reflecting surface 3d.

図４に示されるように、壁部３ｂの表面の反射面３ｄは、壁部３ｂの反射面３ｄによって反射光Ｒｌで照明するスイッチノブ１の所定部位の一部Ｐと光源６とを結ぶ仮想直線Ｂに対してスイッチノブ１の所定部位の一部Ｐを両側から反射光Ｒｌで線対称に照明する。つまり、壁部３ｂの反射面３ｄは、光源６から出射して壁部３ｂの反射面３ｄに到達した光を反射させてスイッチノブ１の所定部位の一部Ｐを反射光Ｒｌで照明する。 As shown in FIG. 4, the reflective surface 3d on the surface of the wall portion 3b is a virtual connection between a part P of a predetermined portion of the switch knob 1 illuminated by the reflected light Rl by the reflective surface 3d of the wall portion 3b and the light source 6. A part P of a predetermined portion of the switch knob 1 is illuminated line-symmetrically with reflected light Rl from both sides with respect to the straight line B. That is, the reflecting surface 3d of the wall portion 3b reflects the light emitted from the light source 6 and reaching the reflecting surface 3d of the wall portion 3b, and illuminates a part P of the predetermined portion of the switch knob 1 with the reflected light Rl.

壁部３ｂは、透明部材である。また、押しボス３は、壁部３ｂに加えて受圧面部３ａ及び一対の腕部３ｃも含めて透明部材である。壁部３ｂは、例えば、ポリカーボネート、アクリルなどの透明プラスチック材を用いている。また、壁部３ｂは、例えば、鏡面磨きの金属材又はアルミ蒸着された部材若しくは高輝度塗料が塗布された部材などでもよい。壁部３ｂは、壁部３ｂの反射面３ｄに到達した光を反射させる。しかし、これに限られず、壁部３ｂは、壁部３ｂの内部又は壁部３ｂの内部透過後の外面などで到達した光を反射させてもよい。つまり、壁部３ｂは、壁部３ｂの反射面３ｄ以外でも到達した光を反射させてもよい。 The wall portion 3b is a transparent member. Further, the push boss 3 is a transparent member including the pressure receiving surface portion 3a and the pair of arm portions 3c in addition to the wall portion 3b. For the wall portion 3b, for example, a transparent plastic material such as polycarbonate or acrylic is used. Further, the wall portion 3b may be, for example, a mirror-polished metal material, an aluminum-deposited member, or a member coated with a high-intensity paint. The wall portion 3b reflects the light that has reached the reflecting surface 3d of the wall portion 3b. However, the present invention is not limited to this, and the wall portion 3b may reflect the light that has reached the inside of the wall portion 3b or the outer surface after the internal transmission of the wall portion 3b. That is, the wall portion 3b may reflect the light that has reached other than the reflecting surface 3d of the wall portion 3b.

壁部３ｂの反射面３ｄを含む全体部分は、光源６から出射された光の入射角が光を反射する臨界角を超える形状を有する。これにより、壁部３ｂの反射面３ｄは、透明部材で構成されたときに光源６から出射された光をスイッチノブ１の所定部位の一部Ｐに向けた反射光Ｒｌに反射できる。 The entire portion of the wall portion 3b including the reflecting surface 3d has a shape in which the incident angle of the light emitted from the light source 6 exceeds the critical angle for reflecting the light. As a result, the reflecting surface 3d of the wall portion 3b can reflect the light emitted from the light source 6 when it is made of the transparent member to the reflected light Rl directed to a part P of the predetermined portion of the switch knob 1.

ここで、従来、光ムラが発生してしまう理由は、図３に示す厚壁部３ａ２で光源６からの光が透過せずに反射してしまい、スイッチノブ１の所定部位の一部Ｐに光が届き難かったためである。このため、スイッチノブ１の所定部位の一部Ｐが暗くなり、所定部位の一部Ｐの周辺と比較して光ムラが発生していた。なぜ厚壁部３ａ２で光が透過しないのかというと、厚壁部３ａ２に入射する光源６の光の角度が、材料によって角度は異なるものの約４０度を超え、光が透過せずに全反射してしまうためである。よって、厚壁部３ａ２の光反射によれば、スイッチノブ１の所定部位の一部Ｐの光が弱い。これを改善するため、スイッチノブ１の所定部位の一部Ｐの光を補うように、壁部３ｂの反射面３ｄに光を反射させてスイッチノブ１の所定部位の一部Ｐに光を集めて光を補っている。これにより、スイッチノブ１の所定部位の一部Ｐがその周辺と明るさが同じになり、均一発光させることで外観見栄えを改善させている。 Here, the reason why light unevenness has conventionally occurred is that the light from the light source 6 is reflected without being transmitted by the thick wall portion 3a2 shown in FIG. 3, and is reflected on a part P of a predetermined portion of the switch knob 1. This is because it was difficult for the light to reach. Therefore, a part P of the predetermined part of the switch knob 1 becomes dark, and light unevenness occurs as compared with the periphery of the part P of the predetermined part. The reason why light is not transmitted through the thick wall portion 3a2 is that the angle of the light of the light source 6 incident on the thick wall portion 3a2 exceeds about 40 degrees, although the angle varies depending on the material, and the light is totally reflected without being transmitted. This is because it ends up. Therefore, according to the light reflection of the thick wall portion 3a2, the light of a part P of the predetermined portion of the switch knob 1 is weak. In order to improve this, the light is reflected on the reflecting surface 3d of the wall portion 3b and the light is collected on the part P of the predetermined part of the switch knob 1 so as to supplement the light of the part P of the predetermined part of the switch knob 1. To supplement the light. As a result, a part P of the predetermined portion of the switch knob 1 has the same brightness as the periphery thereof, and uniform light emission is performed to improve the appearance.

ここで、図２及び図３に示されるように、壁部３ｂにおける光源６から出射して壁部３ｂに到達した光を反射させてスイッチノブ１の所定部位の一部Ｐを反射光Ｒｌで照明する反射面３ｄは、壁部３ｂの反射面３ｄによって反射光Ｒｌで照明するスイッチノブ１の所定部位の一部Ｐの光量と光源６から出射された光で直接照明するスイッチノブ１の所定部位の一部Ｐ以外の他の部位の光量とを一致させる面積である。これにより、照明部４の明るさがほぼ等しくなる。なお、反射面３ｄの面積は、壁部３ｂの反射面３ｄの高さ寸法と壁部３ｂの反射面３ｄの長さ寸法とを相関させて適宜設定すればよい。また、壁部３ｂの反射面３ｄではない部分で光を反射させる場合には、壁部３ｂの反射領域の面積は、壁部３ｂの反射領域の高さ寸法と壁部３ｂの反射領域の長さ寸法とを相関させて適宜設定することでもよい。 Here, as shown in FIGS. 2 and 3, the light emitted from the light source 6 in the wall portion 3b and reaching the wall portion 3b is reflected, and a part P of a predetermined portion of the switch knob 1 is reflected by the reflected light Rl. The reflective surface 3d to be illuminated is a predetermined switch knob 1 that is directly illuminated by the amount of light P of a part P of a predetermined portion of the switch knob 1 illuminated by the reflected light Rl by the reflective surface 3d of the wall portion 3b and the light emitted from the light source 6. It is an area that matches the amount of light of a part other than a part P of the part. As a result, the brightness of the illumination unit 4 becomes almost equal. The area of the reflecting surface 3d may be appropriately set by correlating the height dimension of the reflecting surface 3d of the wall portion 3b with the length dimension of the reflecting surface 3d of the wall portion 3b. When light is reflected by a portion of the wall portion 3b that is not the reflective surface 3d, the area of the reflection region of the wall portion 3b is the height dimension of the reflection region of the wall portion 3b and the length of the reflection region of the wall portion 3b. It may be appropriately set in correlation with the dimension.

＜スイッチノブ１の照明構造１０の照明動作＞
図２に示されるように、発光部Ｌｐから前方の照明部４に向けて出射した光は、直接光Ｓｌとして、操作パネル１０１における照明部４に直接到達し、操作パネル１０１を通過して操作パネル１０１の前側に放出される。これにより、スイッチノブ１の輪郭である照明部４が照明されて使用者に視認される。 <Lighting operation of the lighting structure 10 of the switch knob 1>
As shown in FIG. 2, the light emitted from the light emitting unit Lp toward the front illumination unit 4 directly reaches the illumination unit 4 in the operation panel 101 as direct light Sl, and passes through the operation panel 101 for operation. It is discharged to the front side of the panel 101. As a result, the illumination unit 4, which is the outline of the switch knob 1, is illuminated and visually recognized by the user.

一方、発光部Ｌｐから押しボス３に向けて図４の左右方向に出射した光の一部は、反射光Ｒｌとして、押しボス３における壁部３ｂの反射面３ｄに正反射してから照明部４に到達し、操作パネル１０１を通過して操作パネル１０１の前側に放出される。すなわち、照明構造１０において、照明部４は、光源７３からの直接光Ｓｌのみならず、特にスイッチノブ１の所定部位の一部Ｐについて壁部３ｂの反射面３ｄに反射した反射光Ｒｌによっても照明される。これにより、照明部４は、外部からより均一の明るさで視認される。 On the other hand, a part of the light emitted from the light emitting unit Lp toward the push boss 3 in the left-right direction in FIG. 4 is specularly reflected on the reflection surface 3d of the wall portion 3b of the push boss 3 as reflected light Rl, and then the illumination unit. 4 is reached, passes through the operation panel 101, and is discharged to the front side of the operation panel 101. That is, in the illumination structure 10, the illumination unit 4 is not only the direct light Sl from the light source 73, but also the reflected light Rl reflected on the reflection surface 3d of the wall portion 3b with respect to a part P of a predetermined portion of the switch knob 1. Be illuminated. As a result, the illumination unit 4 is visually recognized from the outside with a more uniform brightness.

また、図示しないが、発光部Ｌｐから左右のやや斜め上方に出射した光も、斜め光として壁部３ｂの反射面３ｄに複数回反射して照明部４を照明する。本実施形態では、壁部３ｂによって反射光Ｒｌで照明するスイッチノブ１の所定部位の一部Ｐの光量と光源６から出射された光で直接照明するスイッチノブ１の所定部位の一部Ｐ以外の部分との光量とを一致させる。このため、壁部３ｂの受圧面部３ａの前面端部３ａ１からの高さ寸法が調整され、斜め光の光量は反射光Ｒｌの光量に包含されていることが好ましい。 Further, although not shown, the light emitted slightly diagonally upward to the left and right from the light emitting unit Lp is also reflected as oblique light a plurality of times on the reflecting surface 3d of the wall portion 3b to illuminate the illuminating unit 4. In the present embodiment, other than the amount of light of a part P of the predetermined part P of the switch knob 1 illuminated by the wall portion 3b with the reflected light Rl and the part P of the predetermined part of the switch knob 1 directly illuminated by the light emitted from the light source 6. Match the amount of light with the part of. Therefore, it is preferable that the height dimension of the pressure receiving surface portion 3a of the wall portion 3b from the front end portion 3a1 is adjusted, and the light amount of the oblique light is included in the light amount of the reflected light Rl.

＜スイッチノブ１の照明構造１０における照明状態の比較例との比較＞
図５は、第一実施形態に係るスイッチノブの照明構造における照明状態を比較例と比較して示す説明図である。図５に示されるように、光源６から照明部４に直接入光する直接光Ｓｌに加え、押しボス３の壁部３ｂに向けて出射した光は、壁部３ｂの反射面３ｄによって反射した反射光Ｒｌとして、照明部４に誘導して照明部４に入光させられる。これにより、光源６から出射された光量の総量に対し、照明部４に入射する光量比率が増加し、スイッチノブ１の所定部位である照明部４がより均一の明るさで照明できる。 <Comparison with the comparative example of the lighting state in the lighting structure 10 of the switch knob 1>
FIG. 5 is an explanatory diagram showing a lighting state in the lighting structure of the switch knob according to the first embodiment in comparison with a comparative example. As shown in FIG. 5, in addition to the direct light Sl that directly enters the illumination unit 4 from the light source 6, the light emitted toward the wall portion 3b of the push boss 3 is reflected by the reflecting surface 3d of the wall portion 3b. As the reflected light Rl, it is guided to the illumination unit 4 and is made to enter the illumination unit 4. As a result, the ratio of the amount of light incident on the illumination unit 4 to the total amount of light emitted from the light source 6 increases, and the illumination unit 4, which is a predetermined portion of the switch knob 1, can be illuminated with more uniform brightness.

図５の壁を設けていない比較例は、壁部を設けていない点を除いて実施形態１の構成と同じ構成の照明構造である。図５の比較例では、照明部４に直接光Ｓｌのみ入射するため、スイッチノブ１の所定部位の一部Ｐが暗くなっている。これに対し、壁部３ｂを設けた本実施形態では、照明部４に直接光Ｓｌと反射光Ｒｌが入射するため、スイッチノブ１の所定部位の一部Ｐが反射光Ｒｌによって明るくなっている。すなわち、照明構造１０は、照明部４の照明に利用する光について、光源６から出射された光の利用効率が高くなっている。この結果、照明部４が全体にむらなく均一に明るくなっている。なお、図５中の総光束は、光源６から放射される全光束の割合である。到達光束は、光源６から照明部４に到達する光束の割合である。総本数は、光源６から放射される光束の本数である。到達本数は、光源６から照明部４に到達する光束の本数である。 The comparative example in which the wall is not provided in FIG. 5 is a lighting structure having the same configuration as that of the first embodiment except that the wall portion is not provided. In the comparative example of FIG. 5, since only the light Sl is directly incident on the illumination unit 4, a part P of the predetermined portion of the switch knob 1 is darkened. On the other hand, in the present embodiment provided with the wall portion 3b, since the light Sl and the reflected light Rl are directly incident on the illumination portion 4, a part P of the predetermined portion of the switch knob 1 is brightened by the reflected light Rl. .. That is, the lighting structure 10 has high utilization efficiency of the light emitted from the light source 6 with respect to the light used for the illumination of the illumination unit 4. As a result, the illumination unit 4 is evenly and uniformly brightened as a whole. The total luminous flux in FIG. 5 is the ratio of the total luminous flux emitted from the light source 6. The ultimate luminous flux is the ratio of the luminous flux that reaches the illumination unit 4 from the light source 6. The total number is the number of luminous fluxes emitted from the light source 6. The reached number is the number of light fluxes reaching from the light source 6 to the illumination unit 4.

＜効果＞
上述したように、本実施形態によれば、押しボス３は、スイッチノブ１の押下力を受ける受圧面部３ａと、受圧面部３ａと異なる位置に設けられた壁部３ｂと、を有することができる。本実施形態によれば、スイッチノブ１の所定部位の一部Ｐに到達する光量が増量でき、スイッチノブ１の照明部４全体がより均一の明るさで照明できる。 <Effect>
As described above, according to the present embodiment, the push boss 3 can have a pressure receiving surface portion 3a that receives the pressing force of the switch knob 1 and a wall portion 3b provided at a position different from the pressure receiving surface portion 3a. .. According to the present embodiment, the amount of light reaching a part P of a predetermined portion of the switch knob 1 can be increased, and the entire illumination unit 4 of the switch knob 1 can be illuminated with a more uniform brightness.

本実施形態によれば、壁部３ｂは、光源６から出射して壁部３ｂに到達した光を反射させてスイッチノブ１の所定部位の一部Ｐを反射光Ｒｌで照明できる。この構成であると、スイッチノブ１の所定部位の一部Ｐに到達する反射光Ｒｌの光量が増量でき、スイッチノブ１の照明部４全体がより均一の明るさで照明できる。 According to the present embodiment, the wall portion 3b can reflect the light emitted from the light source 6 and reaching the wall portion 3b to illuminate a part P of a predetermined portion of the switch knob 1 with the reflected light Rl. With this configuration, the amount of reflected light Rl that reaches a part P of a predetermined portion of the switch knob 1 can be increased, and the entire illumination unit 4 of the switch knob 1 can be illuminated with more uniform brightness.

本実施形態によれば、壁部３ｂは、受圧面部３ａから伸びた腕部３ｃに形成できる。この構成であると、壁部３ｂが受圧面部３ａから伸びた腕部３ｃによって補強できる。 According to the present embodiment, the wall portion 3b can be formed on the arm portion 3c extending from the pressure receiving surface portion 3a. With this configuration, the wall portion 3b can be reinforced by the arm portion 3c extending from the pressure receiving surface portion 3a.

本実施形態によれば、壁部３ｂは、壁部３ｂによって反射光Ｒｌで照明するスイッチノブ１の所定部位の一部Ｐと光源６とを結ぶ仮想直線に対して平行な反射面３ｄを有することができる。この構成であると、スイッチノブ１の所定部位の一部Ｐに到達する反射光Ｒｌの光量が反射面３ｄで最適に増量でき、スイッチノブ１の照明部４全体がより均一の明るさで照明できる。 According to the present embodiment, the wall portion 3b has a reflecting surface 3d parallel to a virtual straight line connecting a part P of a predetermined portion of the switch knob 1 illuminated by the wall portion 3b with the reflected light Rl and the light source 6. be able to. With this configuration, the amount of reflected light Rl that reaches a part P of a predetermined portion of the switch knob 1 can be optimally increased on the reflecting surface 3d, and the entire illumination unit 4 of the switch knob 1 is illuminated with more uniform brightness. can.

本実施形態によれば、受圧面部３ａから伸びた腕部３ｃは、壁部３ｂによって反射光Ｒｌで照明するスイッチノブ１の所定部位の一部から壁部３ｂまでの間に、壁部３ｂによって反射光Ｒｌで照明するスイッチノブ１の所定部位の一部Ｐと光源６とを結ぶ仮想直線に対して直交して伸びた直交腕部３ｃ１を有することができる。この構成であると、壁部３ｂが受圧面部３ａから伸びた直交腕部３ｃ１によって補強できるとともに、直交腕部３ｃ１が反射光Ｒｌの光路を阻害しない。 According to the present embodiment, the arm portion 3c extending from the pressure receiving surface portion 3a is formed by the wall portion 3b between a part of a predetermined portion of the switch knob 1 illuminated by the wall portion 3b with the reflected light Rl and the wall portion 3b. It is possible to have an orthogonal arm portion 3c1 extending orthogonally to a virtual straight line connecting a part P of a predetermined portion of the switch knob 1 illuminated by the reflected light Rl and the light source 6. With this configuration, the wall portion 3b can be reinforced by the orthogonal arm portion 3c1 extending from the pressure receiving surface portion 3a, and the orthogonal arm portion 3c1 does not obstruct the optical path of the reflected light Rl.

本実施形態によれば、腕部３ｃは、一対設けられる。一対の腕部３ｃのそれぞれの壁部３ｂは、スイッチノブ１の所定部位の一部Ｐを両側から反射光Ｒｌで線対称に照明できる。この構成であると、スイッチノブ１の所定部位の一部Ｐに到達する反射光Ｒｌの光量が線対称で最適に増量でき、スイッチノブ１の照明部４全体がより均一の明るさで照明できる。 According to this embodiment, a pair of arm portions 3c is provided. Each wall portion 3b of the pair of arm portions 3c can illuminate a part P of a predetermined portion of the switch knob 1 line-symmetrically with reflected light Rl from both sides. With this configuration, the amount of reflected light Rl that reaches a part P of a predetermined portion of the switch knob 1 can be optimally increased with line symmetry, and the entire illumination unit 4 of the switch knob 1 can be illuminated with more uniform brightness. ..

本実施形態によれば、壁部３ｂは、透明部材であることができる。この構成であると、スイッチノブ１の所定部位の一部Ｐに到達する反射光Ｒｌの光量が透明部材の壁部３ｂで増量でき、スイッチノブ１の照明部４全体がより均一の明るさで照明できる。 According to this embodiment, the wall portion 3b can be a transparent member. With this configuration, the amount of reflected light Rl that reaches a part P of a predetermined portion of the switch knob 1 can be increased by the wall portion 3b of the transparent member, and the entire illumination portion 4 of the switch knob 1 has a more uniform brightness. Can be illuminated.

本実施形態によれば、壁部３ｂは、透明プラスチック材、鏡面磨きの金属材又はアルミ蒸着された部材若しくは高輝度塗料が塗布された部材であることができる。この構成であると、スイッチノブ１の所定部位の一部Ｐに到達する反射光Ｒｌの光量が種々の部材で構成された壁部３ｂで増量でき、スイッチノブ１の照明部４全体がより均一の明るさで照明できる。 According to the present embodiment, the wall portion 3b can be a transparent plastic material, a mirror-polished metal material, an aluminum-deposited member, or a member coated with a high-intensity paint. With this configuration, the amount of reflected light Rl that reaches a part P of a predetermined portion of the switch knob 1 can be increased by the wall portion 3b composed of various members, and the entire illumination portion 4 of the switch knob 1 becomes more uniform. Can be illuminated with the brightness of.

本実施形態によれば、壁部３ｂは、押しボス３と一体成型できる。この構成であると、壁部３ｂが押しボス３と一体成型されて補強できるとともに製造し易い。 According to this embodiment, the wall portion 3b can be integrally molded with the push boss 3. With this configuration, the wall portion 3b can be integrally molded with the push boss 3 to reinforce it, and it is easy to manufacture.

本実施形態によれば、壁部３ｂは、光源６から出射された光の入射角が光を反射する臨界角を超える形状を有することができる。ここで、光源６から出射された光の入射角が光を反射する臨界角を超えないと、反射光Ｒｌが得られない。これに対し、この構成であると、スイッチノブ１の所定部位の一部Ｐに到達する反射光Ｒｌの光量が必ず確保でき、スイッチノブ１の照明部４全体がより均一の明るさで照明できる。 According to the present embodiment, the wall portion 3b can have a shape in which the incident angle of the light emitted from the light source 6 exceeds the critical angle for reflecting the light. Here, the reflected light Rl cannot be obtained unless the incident angle of the light emitted from the light source 6 exceeds the critical angle at which the light is reflected. On the other hand, with this configuration, the amount of reflected light Rl that reaches a part P of a predetermined portion of the switch knob 1 can be surely secured, and the entire illumination unit 4 of the switch knob 1 can be illuminated with more uniform brightness. ..

本実施形態によれば、壁部３ｂにおける光源６から出射して壁部３ｂに到達した光を反射させてスイッチノブ１の所定部位の一部Ｐを反射光Ｒｌで照明する反射面３ｄは、壁部３ｂによって反射光Ｒｌで照明するスイッチノブ１の所定部位の一部Ｐの光量と光源６から出射された光で直接照明するスイッチノブ１の所定部位の一部Ｐ以外の他の部位の光量とを一致させる面積であることができる。この構成であると、スイッチノブ１の照明部４全体が均一により均一の明るさで照明できる。 According to the present embodiment, the reflective surface 3d that reflects the light emitted from the light source 6 in the wall portion 3b and reaches the wall portion 3b to illuminate a part P of a predetermined portion of the switch knob 1 with the reflected light Rl. A part of the switch knob 1 that is directly illuminated by the light amount of the light amount P of the predetermined part P of the switch knob 1 illuminated by the wall portion 3b and the light emitted from the light source 6 It can be an area that matches the amount of light. With this configuration, the entire lighting unit 4 of the switch knob 1 can be illuminated with a uniform and uniform brightness.

本実施形態によれば、電子機器１００は、スイッチノブ１の照明構造１０と、操作パネル１０１と、を備えられる。この構成であると、スイッチノブ１の所定部位に到達する光量が増量でき、スイッチノブ１の照明部４全体がより均一の明るさで照明できる。 According to the present embodiment, the electronic device 100 is provided with a lighting structure 10 of the switch knob 1 and an operation panel 101. With this configuration, the amount of light reaching a predetermined portion of the switch knob 1 can be increased, and the entire illumination unit 4 of the switch knob 1 can be illuminated with a more uniform brightness.

［その他］
上記に記載した構成要素には、当業者が容易に想定できるものや、実質的に同一のものを含む。さらに、上記に記載した構成は、適宜組み合わせ可能である。また、本発明の要旨を逸脱しない範囲において構成の種々の省略、置換又は変更が可能である。 [others]
The components described above include those easily assumed by those skilled in the art and those substantially the same. Further, the configurations described above can be combined as appropriate. Further, various omissions, substitutions or changes of the configuration can be made without departing from the gist of the present invention.

１ スイッチノブ
２ タクトスイッチ
２ａ プッシュ部
３ 押しボス
３ａ 受圧面部
３ａ１ 前面端部
３ａ２ 厚壁部
３ｂ 壁部
３ｃ 腕部
３ｃ１ 直交腕部
４ 照明部
６ 光源
１０ 照明構造
１１ 基板
１００ 電子機器
１０１ 操作パネル
１０１ａ 表面部
１０２ 透光部 1 Switch knob 2 Tact switch 2a Push part 3 Push boss 3a Pressure receiving surface part 3a1 Front end part 3a2 Thick wall part 3b Wall part 3c Arm part 3c1 Orthogonal arm part 4 Lighting part 6 Light source 10 Lighting structure 11 Board 100 Electronic equipment 101 Operation panel 101a Surface part 102 Translucent part

Claims (5)

使用者の押下反応を電気信号に変換するタクトスイッチと、
前記タクトスイッチの配置された基板から離間した表面部に配置され、前記タクトスイッチに対応したスイッチノブと、
前記基板に配置され、前記表面部における前記スイッチノブの所定部位を照明する光源と、
前記タクトスイッチと前記スイッチノブとの間に配置され、前記スイッチノブからの前記使用者の押下反応を前記タクトスイッチに伝達する押しボスと、
を備え、
前記押しボスは、前記スイッチノブの押下力を受ける受圧面部と、前記受圧面部と異なる位置に設けられた壁部と、を有するスイッチノブの照明構造。 A tact switch that converts the user's pressing reaction into an electric signal,
A switch knob arranged on the surface portion away from the board on which the tact switch is arranged and corresponding to the tact switch, and
A light source arranged on the substrate and illuminating a predetermined portion of the switch knob on the surface portion,
A push boss, which is arranged between the tact switch and the switch knob and transmits the push reaction of the user from the switch knob to the tact switch,
Equipped with
The push boss is an illumination structure of a switch knob having a pressure receiving surface portion that receives the pressing force of the switch knob and a wall portion provided at a position different from the pressure receiving surface portion. 前記壁部は、前記光源から出射して前記壁部に到達した光を反射させて前記スイッチノブの所定部位の一部を反射光で照明する請求項１に記載のスイッチノブの照明構造。 The lighting structure of the switch knob according to claim 1, wherein the wall portion reflects light emitted from the light source and reaches the wall portion to illuminate a part of a predetermined portion of the switch knob with reflected light. 前記受圧面部から伸びた腕部は、前記壁部によって反射光で照明する前記スイッチノブの所定部位の一部から前記壁部までの間に、前記壁部によって反射光で照明する前記スイッチノブの所定部位の一部と前記光源とを結ぶ仮想直線に対して直交して伸びた直交腕部を有する請求項１又は請求項２に記載のスイッチノブの照明構造。 The arm portion extending from the pressure receiving surface portion of the switch knob is illuminated by the wall portion with the reflected light between a part of the predetermined portion of the switch knob illuminated by the wall portion and the wall portion. The lighting structure for a switch knob according to claim 1 or 2, which has an orthogonal arm portion extending orthogonally to a virtual straight line connecting a part of a predetermined portion and the light source. 前記壁部は、前記光源から出射された光の入射角が光を反射する臨界角を超える形状を有する請求項１から請求項３のいずれか１項に記載のスイッチノブの照明構造。 The lighting structure for a switch knob according to any one of claims 1 to 3, wherein the wall portion has a shape in which the incident angle of the light emitted from the light source exceeds the critical angle for reflecting the light. 前記壁部における前記光源から出射して前記壁部に到達した光を反射させて前記スイッチノブの所定部位の一部を反射光で照明する反射面は、前記壁部によって反射光で照明する前記スイッチノブの所定部位の一部の光量と前記光源から出射された光で直接照明する前記スイッチノブの所定部位の他の一部の光量とを一致させる面積である請求項１から請求項４のいずれか１項に記載のスイッチノブの照明構造。 The reflective surface of the wall portion that reflects the light emitted from the light source and reaches the wall portion to illuminate a part of the predetermined portion of the switch knob with the reflected light is illuminated by the wall portion. 13. The lighting structure of the switch knob according to any one of the items.
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