JP4585770B2 - Electronics - Google Patents

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JP4585770B2
JP4585770B2 JP2004030789A JP2004030789A JP4585770B2 JP 4585770 B2 JP4585770 B2 JP 4585770B2 JP 2004030789 A JP2004030789 A JP 2004030789A JP 2004030789 A JP2004030789 A JP 2004030789A JP 4585770 B2 JP4585770 B2 JP 4585770B2
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holder
transparent plate
opening
display window
outer case
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JP2005221850A (en
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孝司 千葉
正男 常松
行伸 鈴木
博 武田
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Alpine Electronics Inc
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Alpine Electronics Inc
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Description

本発明は、外装ケースに開設した表示窓を通して液晶表示装置の表示面を目視するようにした電子機器に係り、特に、外装ケースの表示窓を閉塞する透明板の取付構造に関するものである。   The present invention relates to an electronic apparatus in which a display surface of a liquid crystal display device is viewed through a display window established in an exterior case, and more particularly to a mounting structure of a transparent plate that closes the display window of the exterior case.

車載用オーディオ装置等の電子機器においては、機器本体のパネル面である外装ケースの内部に液晶表示装置(LCD)を配設し、この液晶表示装置に表示された曲番号や動作状態等の情報を外装ケースに開設した表示窓を通して目視するようにしたものが一般的であるが、通常、この表示窓はガラスや合成樹脂からなる透明板によって閉塞されて内部の液晶表示装置にゴミや塵埃等の異物が侵入しないようになっている。   In an electronic device such as an in-vehicle audio device, a liquid crystal display device (LCD) is disposed inside an exterior case that is a panel surface of the device body, and information such as a song number and an operating state displayed on the liquid crystal display device. In general, the display window is viewed through a display window established in the outer case, but this display window is usually closed by a transparent plate made of glass or synthetic resin, and the internal liquid crystal display device has dust, dust, etc. The foreign material does not enter.

従来より、このような透明板を外装ケースの表示窓よりも大きめに設定し、この透明板の下面外周部に所定幅の遮光性塗料を印刷すると共に、透明板を遮光性塗料の下面側で両面接着テープを用いて外装ケースに固定するようにした電子機器が知られている(例えば、特許文献1参照)。この遮光性塗料は表示窓の外縁部よりも若干内側に延出しており、両面接着テープ等は遮光性塗料によって外部から見えなくなるため、液晶表示装置の表示面は遮光性塗料で囲まれた透明板の透明部分が可視領域となる。
特開平11−289169号公報(第3−4頁、図1)
Conventionally, such a transparent plate is set to be larger than the display window of the exterior case, and a light-shielding paint with a predetermined width is printed on the outer peripheral portion of the lower surface of the transparent plate, and the transparent plate is placed on the lower surface side of the light-shielding paint. An electronic device is known that is fixed to an outer case using a double-sided adhesive tape (see, for example, Patent Document 1). This light-shielding paint extends slightly inward from the outer edge of the display window, and the double-sided adhesive tape or the like is not visible from the outside by the light-shielding paint, so the display surface of the liquid crystal display device is transparent surrounded by the light-shielding paint. The transparent part of the plate becomes the visible region.
JP-A-11-289169 (page 3-4, FIG. 1)

しかしながら、前述した従来の電子機器では、外装ケースの表示窓を閉塞する透明板の固定部材として両面接着テープを用いており、組立作業者は両面接着テープを透明板と外装ケースの所定位置に正確に貼着する必要があるため、透明板を外装ケースに取り付ける作業性が悪いという問題があった。また、両面接着テープを外部から見えなくするために、透明な透明板の下面外周部に見切り印刷と呼ばれる遮光性塗料を印刷する必要があり、かかる遮光性塗料の印刷工程によって透明板のコストが上昇するという問題もあった。   However, in the conventional electronic device described above, a double-sided adhesive tape is used as a fixing member for the transparent plate that closes the display window of the exterior case, and the assembly operator accurately places the double-sided adhesive tape at a predetermined position on the transparent plate and the exterior case. Therefore, there is a problem that workability for attaching the transparent plate to the exterior case is poor. In addition, in order to make the double-sided adhesive tape invisible from the outside, it is necessary to print a light-shielding paint called part-off printing on the outer periphery of the lower surface of the transparent transparent board. There was also a problem of rising.

本発明は、このような従来技術の実情に鑑みてなされたもので、その目的は、組立が簡単でコストの低減化が図れる電子機器を提供することにある。   The present invention has been made in view of such a state of the prior art, and an object of the present invention is to provide an electronic device that can be easily assembled and reduced in cost.

本発明は、外装ケースの表面に露出する操作ノブの支持部材である遮光性合成樹脂製のホルダを透明板の固定手段として利用し、透明板の外縁部をこのホルダと外装ケースとで挟持・固定しつつ前記外装ケースと前記ホルダとを一体化することにより、外装ケースに開設された表示窓を透明板で閉塞することとした。 The present invention uses a light-shielding synthetic resin holder, which is a support member of the operation knob exposed on the surface of the outer case, as a fixing means for the transparent plate, and sandwiches the outer edge of the transparent plate between the holder and the outer case. By integrating the outer case and the holder while being fixed, the display window opened in the outer case was closed with a transparent plate.

本発明の電子機器は、操作ノブを支持するホルダに液晶表示装置の表示面に対向する開口を設け、この開口の周囲で透明板の外縁部を外装ケースとホルダとで挟持・固定しつつ外装ケースとホルダとを一体化することにより、外装ケースに開設された表示窓を透明板で閉塞するようにしたので、両面接着テープ等の固定部材を要することなく透明板を簡単に取り付けることができ、組立作業の簡略化とコストの低減化が図れる。また、外装ケースとホルダとを透明板の周囲でスナップ結合により一体化するので、ホルダと外装ケースの透明板を挟持する力が安定する。 Electronic device of the present invention, the holder for supporting the operation knob provided with an opening facing the display surface of the liquid crystal display device, while sandwiching and fixing the outer edge of the transparent plate around the opening in the outer casing and the holder exterior By integrating the case and the holder, the display window established in the exterior case is closed with a transparent plate, so the transparent plate can be easily attached without the need for fixing members such as double-sided adhesive tape. Thus, the assembling work can be simplified and the cost can be reduced. In addition, since the outer case and the holder are integrated by snap coupling around the transparent plate, the force for sandwiching the transparent plate of the holder and the outer case is stabilized.

本発明の電子機器では、回路基板上に実装された液晶表示装置およびスイッチ素子と、このスイッチ素子を動作させる操作ノブを支持する遮光性合成樹脂からなるホルダと、前記操作ノブを露出させる透孔と前記液晶表示装置の表示面を臨む表示窓とが開設された外装ケースと、この表示窓を閉塞する透明板とを備え、前記外装ケースの裏面には、前記表示窓を包囲する突堤が一体成形され、この突堤に複数の係合孔が形成されており、前記ホルダには、前記表示窓に対向する開口設けられていると共に、この開口を包囲する部分の表面に複数の係合突部が一体成形されており、これらの係合突部を前記透明板の周縁部に形成された複数の凹部に挿入し且つ前記係合孔にスナップ結合することにより、前記透明板の外縁部を前記外装ケースと前記ホルダとで挟持・固定しつつ前記外装ケースと前記ホルダとを一体化する構成とした。 In the electronic device of the present invention, a liquid crystal display device and a switch element mounted on a circuit board, a holder made of a light-shielding synthetic resin that supports an operation knob for operating the switch element, and a through-hole for exposing the operation knob And a display window that faces the display surface of the liquid crystal display device, and a transparent plate that closes the display window, and a jetty surrounding the display window is integrally formed on the back surface of the exterior case molded, the jetty has a plurality of engaging holes are formed on, the holder, Rutotomoni have opposed openings are provided in the display window, a plurality of the surface of the portion surrounding the opening Kakarigo突The engaging projections are inserted into a plurality of recesses formed on the peripheral edge of the transparent plate and snap-engaged with the engaging hole to thereby remove the outer edge portion of the transparent plate. The outer case It was configured to integrate the said holder and said outer case while sandwiching and fixed between the holder.

このように構成された電子機器は、外装ケースの表面に露出する操作ノブの支持部材であるホルダを透明板の固定手段として利用し、透明板の外縁部をこのホルダと外装ケースとで挟持・固定しつつ前記外装ケースと前記ホルダとを一体化することにより、外装ケースに開設された表示窓を透明板で閉塞するようにしたので、両面接着テープ等の固定部材を要することなく、透明板を外装ケースに簡単に取り付けることができる。また、外装ケースとホルダとを透明板の周囲でスナップ結合により一体化するので、ホルダと外装ケースの透明板を挟持する力が安定する。 The electronic device configured as described above uses a holder, which is a support member of the operation knob exposed on the surface of the outer case, as a fixing means for the transparent plate, and sandwiches the outer edge portion of the transparent plate between the holder and the outer case. By integrating the outer case and the holder while fixing, the display window established in the outer case is closed with a transparent plate, so that a transparent plate can be used without a fixing member such as a double-sided adhesive tape. Can be easily attached to the exterior case. In addition, since the outer case and the holder are integrated by snap coupling around the transparent plate, the force for sandwiching the transparent plate of the holder and the outer case is stabilized.

上記の構成において、ホルダの開口を包囲する部分の表面に複数の弾性舌片を片持ち梁状に一体成形し、これら弾性舌片の自由端を透明板の裏面に弾接させることが好ましく、ホルダにこのような弾性舌片を形成すると、透明板のガタを防止することができると共に、透明板を長期に亘って安定的に固定することができる。 In the above configuration, it is preferable that a plurality of elastic tongue pieces are integrally formed in a cantilever shape on the surface of the portion surrounding the opening of the holder , and the free ends of these elastic tongue pieces are elastically contacted with the back surface of the transparent plate, When such an elastic tongue piece is formed on the holder, the play of the transparent plate can be prevented and the transparent plate can be stably fixed over a long period of time.

また、上記の構成において、ホルダの開口を外装ケースの表示窓よりも小さめに形成し、この開口の大きさによって液晶表示装置の表示面の可視領域を規定することが好ましく、このようにすると透明板の外周部に遮光性塗料を印刷する必要がなくなり、コストをより一層低減化することができる。   In the above configuration, it is preferable that the opening of the holder is formed to be smaller than the display window of the exterior case, and the visible area of the display surface of the liquid crystal display device is defined by the size of the opening. There is no need to print a light-shielding paint on the outer periphery of the plate, and the cost can be further reduced.

また、上記の構成において、ホルダの裏面に開口を包囲するリブを突設し、このリブを液晶表示装置の表示面に当接すると、ゴミや塵埃等の異物が表示面の可視領域内に侵入することを確実に防止できて好ましい。   In the above configuration, when a rib surrounding the opening is provided on the back surface of the holder and the rib abuts against the display surface of the liquid crystal display device, foreign matters such as dust and dust enter the visible region of the display surface. This is preferable because it can be surely prevented.

実施例について図面を参照して説明すると、図1は本発明の実施例に係る電子機器の正面図、図2は図1のII−II線に沿う断面図、図3は図1のIII−III線に沿う断面図、図4は図1のIV−IV線に沿う断面図、図5は該電子機器を表面側から見た分解斜視図、図6は該電子機器を裏面側から見た分解斜視図、図7は該電子機器に備えられるホルダの正面図、図8は該ホルダの裏面図、図9は該電子機器に備えられる透明板の取付状態を示す説明図である。   1 is a front view of an electronic apparatus according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1, and FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 1, FIG. 5 is an exploded perspective view of the electronic device viewed from the front side, and FIG. 6 is a view of the electronic device viewed from the back side. FIG. 7 is an exploded perspective view, FIG. 7 is a front view of a holder provided in the electronic device, FIG. 8 is a rear view of the holder, and FIG. 9 is an explanatory view showing an attached state of a transparent plate provided in the electronic device.

本実施例に係る電子機器は、例えば車載用オーディオ装置として使用されるものであり、車内のインストルメントパネル等に配設される図示しない金属製の外部シャーシと、この外部シャーシの前面部に取り付けられた合成樹脂製の外装ケース1と、この外装ケース1の裏面側に配設されたホルダ2と、これら外装ケース1とホルダ2間に配設された合成樹脂製の透明板3と、外部シャーシに取り付けられた回路基板4とから主に構成されている。   The electronic apparatus according to the present embodiment is used as, for example, an in-vehicle audio device, and is attached to a metal external chassis (not shown) disposed on an in-vehicle instrument panel or the like, and a front portion of the external chassis. Synthetic resin outer case 1, holder 2 disposed on the back side of outer case 1, synthetic resin transparent plate 3 disposed between outer case 1 and holder 2, It is mainly composed of a circuit board 4 attached to the chassis.

外装ケース1は機器本体のパネル面を構成するものであり、その中央部に長方形状の表示窓5が開設されると共に、表示窓5の周囲にディスク挿入口6や複数の透孔7が開設されている。また、外装ケース1の裏面には表示窓5を包囲するように突堤1aが一体成形されると共に、この突堤1aには複数の係合孔1bが形成されており、さらに外装ケース1の外周壁に複数の係合孔1cが形成されている(図6参照)。   The outer case 1 constitutes the panel surface of the apparatus body, and a rectangular display window 5 is opened at the center thereof, and a disk insertion slot 6 and a plurality of through holes 7 are opened around the display window 5. Has been. A jetty 1 a is integrally formed on the back surface of the outer case 1 so as to surround the display window 5, and a plurality of engagement holes 1 b are formed in the jetty 1 a, and the outer peripheral wall of the outer case 1 is further formed. A plurality of engagement holes 1c are formed in the base (see FIG. 6).

ホルダ2は遮光性の合成樹脂、例えば黒色のABS樹脂からなり、その外周壁には外装ケース1の各係合孔1cにスナップインされる複数の凸部2eが一体成形されている。ホルダ2の中央部には外装ケース1の表示窓5に対向する長方形状の開口8が開設されており、この開口8の大きさは表示窓5よりも幾分小さめに設定されている。後述するように、これら表示窓5と開口8は透明板3によって閉塞されるようになっており、この透明板3は外装ケース1の裏面とホルダ2の表面とで挟持・固定される。また、ホルダ2には外装ケース1のディスク挿入口5に対向する長孔9が開設されると共に、外装ケース1の透孔7内に露出する複数の操作ノブ10が揺動可能に支持されており、さらにアクリル樹脂等からなる複数の導光体11がスナップ結合によって固定されている。   The holder 2 is made of a light-shielding synthetic resin, for example, a black ABS resin, and a plurality of convex portions 2e snapped into the respective engagement holes 1c of the outer case 1 are integrally formed on the outer peripheral wall thereof. A rectangular opening 8 facing the display window 5 of the outer case 1 is opened at the center of the holder 2, and the size of the opening 8 is set slightly smaller than the display window 5. As will be described later, the display window 5 and the opening 8 are closed by the transparent plate 3, and the transparent plate 3 is sandwiched and fixed between the back surface of the exterior case 1 and the surface of the holder 2. The holder 2 is provided with a long hole 9 that faces the disc insertion slot 5 of the outer case 1, and a plurality of operation knobs 10 exposed in the through holes 7 of the outer case 1 are swingably supported. In addition, a plurality of light guides 11 made of acrylic resin or the like are fixed by snap coupling.

図2〜図4および図7〜図9に示すように、ホルダ2の開口8を包囲する部分の表面は前述した透明板3の載置面となっており、この載置面に複数の弾性舌片2aが片持ち梁状に一体成形されている。これら弾性舌片2aは2つを1組として開口8の左右両短辺の外側に1組ずつ形成されており、各組の両弾性舌片2aは互いの固定端を中心として開口8の短辺に沿って逆向きに延びている。透明板3は各弾性舌片2aからの弾発力を受けて外装ケース1の裏面に圧接されており、各弾性舌片2aの自由端側には透明板3の裏面に当接する半球状の突部2bが形成されている。また、ホルダ2の表面には外装ケース1の各係合孔1bにスナップインされる複数の係合突起2cが一体成形されており、これら係合突起2cは透明板3の位置決め部としても機能する。すなわち、透明板3の周縁部に形成された複数の凹部3aを対応する係合突起2cに挿入することにより、透明板3はホルダ2の載置面に対してその面方向へ位置決めされるようになっている。一方、ホルダ2の裏面にはリブ2dが一体成形されており、このリブ2dは開口8の外周縁に沿って枠状に形成されている。   As shown in FIGS. 2 to 4 and FIGS. 7 to 9, the surface of the portion surrounding the opening 8 of the holder 2 is the mounting surface of the transparent plate 3 described above, and a plurality of elastic properties are provided on the mounting surface. The tongue piece 2a is integrally formed in a cantilever shape. Two sets of these elastic tongue pieces 2a are formed on the outer sides of the left and right short sides of the opening 8 as a set, and the two elastic tongue pieces 2a of each set are short of the opening 8 around the fixed end of each set. It extends in the opposite direction along the side. The transparent plate 3 receives a resilient force from each elastic tongue 2a and is pressed against the back surface of the outer case 1. The free end of each elastic tongue 2a has a hemispherical shape that contacts the back surface of the transparent plate 3. A protrusion 2b is formed. A plurality of engagement protrusions 2 c snapped into the respective engagement holes 1 b of the outer case 1 are integrally formed on the surface of the holder 2, and these engagement protrusions 2 c also function as positioning portions for the transparent plate 3. To do. That is, the transparent plate 3 is positioned in the surface direction with respect to the mounting surface of the holder 2 by inserting a plurality of concave portions 3 a formed on the peripheral edge portion of the transparent plate 3 into the corresponding engaging protrusions 2 c. It has become. On the other hand, a rib 2 d is integrally formed on the back surface of the holder 2, and the rib 2 d is formed in a frame shape along the outer peripheral edge of the opening 8.

図5に示すように、回路基板4上には液晶表示装置(LCD)12と回転操作型可変抵抗器13と複数のプッシュスイッチ14および複数の発光ダイオード(LED)15が実装されており、液晶表示装置12には金属板製の枠体16が取り付けられている。この枠体16には液晶表示装置12の表示面12aを露出させる窓孔16aが形成されており、ホルダ2から突出するリブ2dの先端は窓孔16a内に挿入されて表示面12aに当接している(図3参照)。可変抵抗器13の回転軸13aはホルダ2を挿通しており、その先端に取り付けられた操作つまみ17は外装ケース1の透孔7内に露出している(図1参照)。プッシュスイッチ14はホルダ2に支持された操作ノブ10に対向しており、発光ダイオード15はホルダ2に固定された導光体11の受光面に対向している。   As shown in FIG. 5, a liquid crystal display device (LCD) 12, a rotary operation type variable resistor 13, a plurality of push switches 14, and a plurality of light emitting diodes (LEDs) 15 are mounted on the circuit board 4. A frame 16 made of a metal plate is attached to the display device 12. The frame 16 is formed with a window hole 16a for exposing the display surface 12a of the liquid crystal display device 12, and the tip of the rib 2d protruding from the holder 2 is inserted into the window hole 16a and comes into contact with the display surface 12a. (See FIG. 3). The rotary shaft 13a of the variable resistor 13 is inserted through the holder 2, and an operation knob 17 attached to the tip of the variable resistor 13 is exposed in the through hole 7 of the outer case 1 (see FIG. 1). The push switch 14 faces the operation knob 10 supported by the holder 2, and the light emitting diode 15 faces the light receiving surface of the light guide 11 fixed to the holder 2.

このように構成された電子機器においては、透明板3の各凹部3aをホルダ2の対応する係合突起2cに挿入して開口8の周囲の載置面に位置決めした後、外装ケース1とホルダ2とをスナップ結合して一体化することにより、透明板3が外装ケース1の裏面とホルダ2の表面とで挟持・固定されるようになっている。その際、外装ケース1とホルダ2は、係合孔1cと凸部2eによる外周部でのスナップ結合のみならず、係合孔1bと係合突起2cによる透明板3の周囲でもスナップ結合されるため、外装ケース1とホルダ2の挟持力が安定して透明板3を確実に固定することができる。   In the electronic apparatus configured in this way, after inserting each recess 3a of the transparent plate 3 into the corresponding engagement protrusion 2c of the holder 2 and positioning it on the mounting surface around the opening 8, the outer case 1 and the holder 2 are snap-coupled and integrated so that the transparent plate 3 is sandwiched and fixed between the back surface of the outer case 1 and the surface of the holder 2. At that time, the outer case 1 and the holder 2 are snap-coupled not only at the outer peripheral portion by the engagement hole 1c and the convex portion 2e but also around the transparent plate 3 by the engagement hole 1b and the engagement protrusion 2c. Therefore, the clamping force between the outer case 1 and the holder 2 can be stabilized and the transparent plate 3 can be reliably fixed.

また、透明板3はホルダ2に一体成形された各弾性舌片2aからの弾発力を受けて外装ケース1の裏面に圧接されるため、各弾性舌片2aによって透明板3のガタ付きが防止され、環境温度の変化等に拘わらず透明板3を長期に亘って安定的に固定することができる。   Further, since the transparent plate 3 receives the elastic force from the elastic tongues 2a integrally formed with the holder 2 and is pressed against the back surface of the outer case 1, the transparent plates 3 are loosened by the elastic tongues 2a. Thus, the transparent plate 3 can be stably fixed over a long period of time regardless of changes in environmental temperature or the like.

また、外装ケース1の表示窓5に対してホルダ2の開口8が幾分小さめに設定されているため、この開口8の大きさによって液晶表示装置12の表示面12aの可視領域を規定することができる。すなわち、図2と図3に示すように、外装ケース1に開設された表示窓5の長辺側と短辺側の長さをそれぞれL1,W1とし、ホルダ2に開設された開口8の長辺側と短辺側の長さをそれぞれL2,W2とすると、これら長さはL1>L2,W1>W2の関係にあるため、表示窓5と透明板3を通して目視することのできる表示面12aの可視領域は開口8で囲まれた範囲となる。したがって、外装ケース1の外部から液晶表示装置12の表示面12aを目視したとき、図1の符号Mで示すように、表示窓5の外周縁内側に開口8の周囲が枠状に見えることになり、ホルダ2の当該部分Mが見切り印刷と同様の機能を持つため、透明板3の外周部に必要とされていた遮光性塗料の印刷を省略することができ、その分だけコストの低減化が図れる。   Further, since the opening 8 of the holder 2 is set somewhat smaller than the display window 5 of the outer case 1, the visible region of the display surface 12 a of the liquid crystal display device 12 is defined by the size of the opening 8. Can do. That is, as shown in FIGS. 2 and 3, the lengths of the long side and the short side of the display window 5 provided in the exterior case 1 are L1 and W1, respectively, and the length of the opening 8 provided in the holder 2 is set. If the lengths of the side and the short side are L2 and W2, respectively, these lengths have a relationship of L1> L2 and W1> W2. Therefore, the display surface 12a that can be viewed through the display window 5 and the transparent plate 3 The visible region is a range surrounded by the opening 8. Therefore, when the display surface 12a of the liquid crystal display device 12 is viewed from the outside of the exterior case 1, the periphery of the opening 8 appears to be a frame shape inside the outer peripheral edge of the display window 5, as indicated by the symbol M in FIG. Thus, since the portion M of the holder 2 has the same function as part-off printing, printing of the light-shielding paint required on the outer peripheral portion of the transparent plate 3 can be omitted, and the cost is reduced accordingly. Can be planned.

さらに、ホルダ2の裏面に開口8を包囲するリブ2dが突設され、このリブ2dの先端を液晶表示装置12の表示面12aに当接したため、ゴミや塵埃等の異物が表示面12aの可視領域内に侵入することを確実に防止できる。   Further, a rib 2d surrounding the opening 8 is provided on the back surface of the holder 2, and the tip of the rib 2d is brought into contact with the display surface 12a of the liquid crystal display device 12, so that foreign matters such as dust and dust are visible on the display surface 12a. Intrusion into the area can be surely prevented.

本発明の実施例に係る電子機器の正面図である。It is a front view of the electronic device which concerns on the Example of this invention. 図1のII−II線に沿う断面図である。It is sectional drawing which follows the II-II line of FIG. 図1のIII−III線に沿う断面図である。It is sectional drawing which follows the III-III line of FIG. 図1のIV−IV線に沿う断面図である。It is sectional drawing which follows the IV-IV line of FIG. 該電子機器を表面側から見た分解斜視図である。It is the disassembled perspective view which looked at this electronic device from the surface side. 該電子機器を裏面側から見た分解斜視図である。It is the disassembled perspective view which looked at this electronic device from the back side. 該電子機器に備えられるホルダの正面図である。It is a front view of the holder with which this electronic device is equipped. 該ホルダの裏面図である。It is a reverse view of this holder. 該電子機器に備えられる透明板の取付状態を示す説明図である。It is explanatory drawing which shows the attachment state of the transparent plate with which this electronic device is equipped.

符号の説明Explanation of symbols

1 外装ケース
1a 突堤
1b,1c 係合孔
2 ホルダ
2a 弾性舌片
2b 突部
2c 係合突起
2d リブ
2e 凸部
3 透明板
3a 凹部
4 回路基板
5 表示窓
7 透孔
8 開口
10 操作ノブ
11 導光体
12 液晶表示装置
12a 表示面
16 枠体
16a 窓孔
DESCRIPTION OF SYMBOLS 1 Exterior case 1a Jetty 1b, 1c Engagement hole 2 Holder 2a Elastic tongue piece 2b Protrusion part 2c Engagement protrusion 2d Rib 2e Convex part 3 Transparent board 3a Concave part 4 Circuit board 5 Display window 7 Through-hole 8 Opening 10 Operation knob 11 Conduction Light body 12 Liquid crystal display device 12a Display surface 16 Frame body 16a Window hole

Claims (4)

回路基板上に実装された液晶表示装置およびスイッチ素子と、このスイッチ素子を動作させる操作ノブを支持する遮光性合成樹脂からなるホルダと、前記操作ノブを露出させる透孔と前記液晶表示装置の表示面を臨む表示窓とが開設された外装ケースと、この表示窓を閉塞する透明板とを備え、前記外装ケースの裏面には、前記表示窓を包囲する突堤が一体成形され、この突堤に複数の係合孔が形成されており、前記ホルダには、前記表示窓に対向する開口設けられていると共に、この開口を包囲する部分の表面に複数の係合突部が一体成形されており、これらの係合突部を前記透明板の周縁部に形成された複数の凹部に挿入し且つ前記係合孔にスナップ結合することにより、前記透明板の外縁部を前記外装ケースと前記ホルダとで挟持・固定しつつ前記外装ケースと前記ホルダとを一体化したことを特徴とする電子機器。 A liquid crystal display device and a switch element mounted on a circuit board, a holder made of a light-shielding synthetic resin that supports an operation knob that operates the switch element, a through hole that exposes the operation knob, and a display of the liquid crystal display device And a transparent plate that closes the display window. A jetty surrounding the display window is integrally formed on the back surface of the outer case, and a plurality of the jetty is formed on the jetty. of which the engagement hole is formed, the holder is Rutotomoni have opposed openings are provided in the display window, a plurality of engaging projections on the surface of the portion surrounding the opening is integrally molded The engagement protrusions are inserted into a plurality of recesses formed on the peripheral edge of the transparent plate and snap-engaged with the engagement holes, thereby the outer edge portion of the transparent plate is connected to the exterior case and the holder. Pinched An electronic apparatus characterized in that integrated with the holder and the outer case with a constant. 請求項1の記載において、前記ホルダの前記開口を包囲する部分の表面に複数の弾性舌片を片持ち梁状に一体成形し、これら弾性舌片の自由端を前記透明板の裏面に弾接させたことを特徴とする電子機器。 2. The elastic tongue piece according to claim 1, wherein a plurality of elastic tongue pieces are integrally formed in a cantilever shape on a surface of the portion surrounding the opening of the holder , and the free ends of the elastic tongue pieces are elastically contacted with the back surface of the transparent plate. Electronic equipment characterized by having been made. 請求項1または2の記載において、前記開口を前記表示窓よりも小さめに形成し、この開口の大きさによって前記表示面の可視領域を規定したことを特徴とする電子機器。   3. The electronic device according to claim 1, wherein the opening is formed smaller than the display window, and a visible region of the display surface is defined by a size of the opening. 請求項1の記載において、前記ホルダの裏面に前記開口を包囲するリブを突設し、このリブを前記表示面に当接させたことを特徴とする電子機器。   The electronic apparatus according to claim 1, wherein a rib surrounding the opening is provided on the back surface of the holder, and the rib is brought into contact with the display surface.
JP2004030789A 2004-02-06 2004-02-06 Electronics Expired - Fee Related JP4585770B2 (en)

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JP4802809B2 (en) * 2006-03-29 2011-10-26 ソニー株式会社 Double-sided LCD module
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JPH01222087A (en) * 1988-03-02 1989-09-05 Idemitsu Kosan Co Ltd Production of organic thin film
JPH068983U (en) * 1991-03-26 1994-02-04 株式会社光電製作所 Image display device
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JP2000112387A (en) * 1998-10-07 2000-04-21 Sanyo Electric Co Ltd Display device
JP2003255851A (en) * 2001-12-25 2003-09-10 Canon Inc Display device

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Publication number Priority date Publication date Assignee Title
JPS5886679U (en) * 1981-12-07 1983-06-11 シャープ株式会社 Display mounting structure
JPH01222087A (en) * 1988-03-02 1989-09-05 Idemitsu Kosan Co Ltd Production of organic thin film
JPH068983U (en) * 1991-03-26 1994-02-04 株式会社光電製作所 Image display device
JPH09113880A (en) * 1995-10-16 1997-05-02 Alpine Electron Inc Display device
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JP2000112387A (en) * 1998-10-07 2000-04-21 Sanyo Electric Co Ltd Display device
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