JP2004070657A - Casing structure of personal digital assistance - Google Patents

Casing structure of personal digital assistance Download PDF

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Publication number
JP2004070657A
JP2004070657A JP2002228935A JP2002228935A JP2004070657A JP 2004070657 A JP2004070657 A JP 2004070657A JP 2002228935 A JP2002228935 A JP 2002228935A JP 2002228935 A JP2002228935 A JP 2002228935A JP 2004070657 A JP2004070657 A JP 2004070657A
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Japan
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display element
housing
holding member
information terminal
portable information
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JP2002228935A
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Japanese (ja)
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Yoshihiro Matsumoto
松本　芳弘
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Olympus Corp
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Olympus Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem in a conventional casing that the lateral width of the casing cannot be narrowed due to a bracket part, whereas the bracket part is provided around an LCD holding member for holding a display element because the waterproofing of the casing with a display screen in the display element is performed by use of an elastic member interposed between them. <P>SOLUTION: In this personal digital assistance, extending locking claws are provided at both long-side ends of the display element holding member. In assembling, the locking claws are fitted to holes provided on the casing side, the display element is pressed and fixed onto the casing side, and a waterproof member is crushed to exhibit the waterproofing function. Accordingly, the width of the casing is narrowed by the length portion of an unnecessary conventional bucket part. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、携帯性を向上させるために小型化が要求される携帯情報端末の筐体構造に関する。
【０００２】
【従来の技術】
一般に、電子手帳等、通信機能やバーコード読み取り機能を有するＰＤＡなどの携帯可能な携帯情報端末には、入力操作や処理操作を行うための複数のキーと、情報を表示するための液晶表示素子（ＬＣＤ）による表示画面が設けられている。
【０００３】
例えば、図１０は、従来の携帯情報端末を正面から見た外観構成を示し、図１１は、その携帯情報端末の下側筐体（表示画面側を上面とする）を外した内部構成を示し、図１２は、図１０の線分Ａ−Ａにおける断面構成を示している。
【０００４】
この携帯情報端末３０の構成において、ＬＣＤ３２は、ＬＣＤ保持部材３３に保持されて、そのＬＣＤ保持部材３３の周囲で外側へ張り出すように設けられた複数のブラケット部３４がネジ３５により上側筐体３１内に設けられたボス部３７へ螺着されて、取り付けられている。ネジ３７により、下側筐体３８と上側筐体３１とが一体的に組み立てられる。
【０００５】
また図１２に示すように、上側筐体３１とＬＣＤ３２との接触面（対向面）ではＬＣＤ３２全周に亘り、ゴム等の弾性部材からなるＬＣＤ防水部材３６を介在させて、外部からの水の浸入を防止している。防水機能を発揮させるためには、ＬＣＤ防水部材３６が全周に亘って均一に押し潰される必要があり、例えば、図１１に示すように、ＬＣＤ３２の周囲を複数のネジ３５で締め付けている。
【０００６】
【発明が解決しようとする課題】
前述した携帯情報端末は、机上で操作するよりも、手で持った状態でキー操作を行う場合が多い。従って、手に持ち易くさせるためには筐体の横幅を掌に収まるサイズにすることが望ましい。前述した例では、防水のために均等な力で防水部材を押し潰す必要があるため、ＬＣＤ３２の周囲にブラケット部３４を配置してネジ止めしている。この筐体の横幅は、図１１に示すように、ＬＣＤ保持部材３３の横幅に、両側のブラケット部３４の幅、筐体用防水部材の厚さ及び、筐体自体の厚さが加わったものとなっている。
【０００７】
通常、ユーザは、表示される情報の見やすさからＬＣＤ３２の表示画面の大型化を望む一方、持ち易さのために端末の幅を狭くすることも含めた小型軽量化が望まれている。従って、携帯情報端末を表示画面側から見て画面の縁となる部分を狭くすることにより、表示画面の大型化若しくは端末の幅を狭くすることが成し得る。
【０００８】
しかし、ＬＣＤ３２の長辺側の締め付け構造は、ＬＣＤ防水部材３６を機能させるためには不可欠であり、従来の構造では、長辺側の締め付けのためにもネジ用のブラケット部を除くことはできない。
そこで、本発明は防水機能の低下を防止し且つ、端末の筐体の横幅を狭くすることで、表示画面の大型化及び手に持ったときの操作性の向上を実現する情報携帯端末の筐体構造を提供することを目的とする。
【０００９】
【課題を解決するための手段】
本発明は上記目的を達成するために、携帯可能で種々の情報処理を行う携帯情報端末において、表示画面を持つ矩形形状の表示素子を含む電子機器部位を収納し、上面に該表示画面を露出させるための開口部を有する筐体と、上記筐体の開口部に上記表示画面が露出するように上記表示素子を該筐体に固定させるための表示素子保持部材とを備え、さらに、上記表示素子保持部材における対向する辺の一部にそれぞれ延出するように設けられた係止爪と、上記筐体内壁に隣接し、上記表示素子保持部材を組み付けた際に、該表示素子保持部材の周囲に当接して、所定位置に嵌装されるようにガイドし、上記係止爪が当接するそれぞれの箇所に孔が設けられたガイド部材とを具備し、上記係止爪が上記孔に嵌合することにより、上記表示素子が上記表示素子保持部材により上記筐体内に保持される携帯情報端末の筐体構造を提供する。
【００１０】
この携帯情報端末の筐体構造において、上記係止爪は、上記表示素子保持部材の対向する辺の２つの組のうちの一方の組に設けられ、他方の辺の組には、ネジ止め用のブラケット部が設けられる。また、上記表示素子と上記筐体内壁との間に設けられ、上記表示素子保持部材の係止爪による係止と上記ブラケット部の螺着とによる均一な押圧により防水機能する防水部材をさらに具備する。
【００１１】
以上のような構成の携帯情報端末の筐体構造は、表示素子を保持する表示素子保持部材が長辺側に設けた係止爪により上側筐体に係止され、表示素子防水部材が上側筐体と表示素子保持部材とで均一的に圧縮されて防水が機能し、不要となった従来のネジ止め用ブラケット部の長さ分、筐体の横幅が狭くなり、また従来横幅であれば表示素子の表示画面の大型化が図られる。
【００１２】
【発明の実施の形態】
以下、図面を参照して本発明の実施形態について詳細に説明する。
図１は、本発明の第１の実施形態に係る携帯情報端末における正面（表示画面がある上側）から見た外観構成を示し、図２は、図１の長手方向（長辺）の線分Ｂ−Ｂにおける携帯情報端末の断面構成を示す。図３は、図１の横方向の線分Ｃ−Ｃにおける携帯情報端末の断面構成を示し、図４は、図１の横方向の線分Ｄ−Ｄにおける携帯情報端末の断面構成を示し、図５は、図１の横方向の線分Ｅ−Ｅにおける携帯情報端末の断面構成を示し、図６（ａ）、（ｂ）は、図４におけるＬＣＤ保持部材の係止部分を拡大した断面構成また、図６（ｃ）は、図６（ｂ）における係止爪による係止箇所を斜め方向から見た構成を示す。図７は、図２の線分Ｆ−Ｆにおける水平断面であり、ＬＣＤ保持部材を取り付けた状態を下側から見た構成を示し、図８は、図２に示す線分Ｇ−Ｇにおける水平断面であり、回路基板を取り付けた状態を下側から見た構成を示している。
【００１３】
この携帯情報端末１は、図１に示すように、正面（上面）に液晶表示素子（ＬＣＤ）２等の矩形形状の表示素子による画面２ａが設けられ、その近傍に情報入力や処理指示を行うための複数のキー３が配置されている。この端末筐体は、樹脂、金属又はそれらの組合せにより形成され、図４に示すように、例えば、上側筐体４と下側筐体５とに２分割し、ゴム等からなる上下筐体防水部材６を周囲に挟んでネジ７（図３に示す）により数ヶ所で螺着されて一体化されている。尚、端末筐体外装には落下等の外部からの衝撃による損傷を最小限にさせるためのガード部材を設けてもよい。
【００１４】
その上側筐体４には、図２に示すようにＬＣＤ２用の窓が開口され、ＬＣＤ防水部材８により端部全周がカバーされたＬＣＤ２を保持するＬＣＤ保持部材９が後述するように取り付けられ、ＬＣＤ２の表示画面２ａが露出している。このＬＣＤ防水部材８は、図４に示すような断面がコの字形状でゴム等からなり弾性及び防水性を有している。ＬＣＤ防水部材８は、弾性及び防水性を有していれば、水の不透過性を有するスポンジでもよいし、樹脂を代用することもできる。このＬＣＤ保持部材９は、アルミニウムの様な金属や樹脂により形成される。また、これらを組み合わせて形成してもよい。このＬＣＤ保持部材９の下方には、種々の回路素子が実装された回路基板１０が配置されている。
【００１５】
さらに下側筐体５には、電池室１２が設けられており、主電源となる電池１３が装填され電池蓋１４でカバーされている。
【００１６】
次に、前述した上側筐体４にＬＣＤ保持部材９を係止する構成について説明する。
このＬＣＤ保持部材９において、図７に示すように短辺側には、長手方向に延出する、それぞれ２個のブラケット部９ｃ、９ｄが設けられている。これらは、図３に示すような上側筐体４に設けられたボス部１５にネジ止めされる際に用いられる。また、ＬＣＤ保持部材９のそれぞれの長辺側の中程に延出する４個の係止爪９ａが設けられている。
【００１７】
図６に示すように、上側筐体４内部にはＬＣＤ保持部材９とガタツキなく当接して、正しく嵌装されるようにガイドするためのガイド部材１６がＬＣＤ保持部材９のほぼ全周に亘り設けられている。このガイド部材１６でＬＣＤ保持部材９が組み付けられた際に係止爪９ａと当接する箇所には、図６（ａ）に示すような孔１６ａを形成する。これは、ＬＣＤ保持部材９を上側筐体４に組み付けた際に、図６（ｂ）に示すように、係止爪９ａが孔１６ａに嵌め込まれて固定され、ＬＣＤ２及びＬＣＤ防水部材８の長辺（長手方向）側が係止される。図６（ｃ）は、４個の係止爪９ａが孔１６ａの嵌め込まれている状態を示している。この係止において、ＬＣＤ２を上側筐体４の内壁に押し付ける力（押圧）が働く位置に孔１６ａを形成する。
【００１８】
そして、図３及び図８に示すように、回路基板１０が重ね合わせられて、４箇所のブラケット部９ｃ、９ｄが上側筐体４のボス部１５にネジ１１によりネジ止めされて固定される。尚、図７に示すネジ穴９ｂは、図５に示すように、ネジ７とボス部１７により、下側筐体５をＬＣＤ保持部材９へ固定する時に利用するための孔である。
【００１９】
このような構造により、ＬＣＤ保持部材９の短辺両側はブラケット部９ｃ、９ｄによるネジ止めで係止され、長辺両側は、係止爪９ａの嵌め込みにより係止される。従って、従来、横幅方向に必要であったネジ止め用ブラケット部が無くなり、筐体の横幅を狭くすることができる。
【００２０】
この実施形態では、係止爪９ａをそれぞれ４個設けた例であるが、ＬＣＤ保持部材９がＬＣＤ防水部材８を均等に圧縮して防水が機能すれば、個数には限定されず、少なくとも１個設けるだけでもよい。また、係止爪９ａは、ＬＣＤ保持部材９の長辺側に設けた例について説明しているが、勿論短辺側に設けて利用してもよい。
【００２１】
以上のような構成により、ＬＣＤ保持部材は、長辺側に設けた係止爪により上側筐体に押圧が働きつつ係止された状態で保持されることとなり、従来のネジ止めに用いたブラケット部を設ける必要がない。これにより、従来と同じＬＣＤであれば、携帯情報端末１の横幅を狭くすることができ、また従来と同じ横幅であれば、ＬＣＤの表示画面を大きくすることができる。また、ＬＣＤ防水部材が押圧により、上側筐体とＬＣＤ保持部材との間で均一的に圧縮されることにより防水機能を発揮することができる。
【００２２】
次に図９は、本発明の第２の実施形態に係る携帯情報端末におけるＬＣＤ保持部材の係止部分を拡大した断面構成を示す図である。
【００２３】
前述した第１の実施形態では、ＬＣＤ保持部材に係止爪を設け、上側筐体に孔を設けて、嵌め込むことで係止させた例であったが、この第２の実施形態は、ＬＣＤ保持部材の突起部とＬＣＤ保持部材にカギ溝との係合によりＬＣＤ保持部材を上側筐体に係止させるものである。
【００２４】
図９に示すように、ＬＣＤ保持部材９の両長辺側にそれぞれ２個の突起部２１を設ける。また、両短辺側には前述したブラケット部９ｃ、９ｄ（図示せず）を設ける。そして、上側筐体４には、組み付けた際に上記突起部２１が当接する位置にカギ溝２２を設ける。このカギ溝２２はＬ形状に設けられ、突起部２１を矢印のようにカギ溝２２へ嵌め、さらにスライドさせて係止する。また突起部２１がカギ溝２２から外れ出ないように保持するために、カギ部２３の先端部には、ストッパ２３ａがそれぞれ形成されている。
【００２５】
このＬＣＤ保持部材９を上側筐体４に取り付ける手順は前述した第１の実施形態と同様であり、ＬＣＤ保持部材９の突起部２１をカギ溝２２に係合させた後、回路基板１０と重ね合わせられて、４箇所のブラケット部９ｃ、９ｄが上側筐体４のボス部１５にネジ止めされて固定される。
【００２６】
以上のように、この第２の実施形態は、ＬＣＤ保持部材の長辺側の突起部を設け、上側筐体４のカギ溝に係合させる構造により、従来、横幅方向に必要であったネジ止め用ブラケット部が無くなり、筐体の横幅を狭くすることができる。また、ＬＣＤ防水部材が上側筐体とＬＣＤ保持部材とで均一的に圧縮されることにより防水機能を発揮することができる。
【００２７】
前述した携帯情報端末は、機能として、演算や計算によるデータ処理機能、バーコード等の記号を読み取る記号情報読み取り機能、電話回線や無線通信や光通信やケーブル通信を利用した通信機能、画像の撮像処理及び再生表示処理機能、文章作成機能、キー操作や書き込みによる入力を行う入力機能、音声による入出力機能、内蔵メモリや着脱自在なメモリによるメモリ機能及び、ＤＰＳを含む地図機能等々を組み合わせて搭載する機器を想定している。これらの携帯情報端末に対して、第１、２の実施形態を容易に適用することができる。
【００２８】
以上の実施形態について説明したが、本明細書には以下のような発明も含まれている。
【００２９】
（１）上側筐体とＬＣＤ保持部材を係止するための係止爪と、
上記係止爪を嵌合させて、引っ掛ける穴で組み付け保持を行うことにより筐体幅をＬＣＤの幅に対して僅かな寸法増加で構成出来る事を特徴とした筐体構造。
【００３０】
（２）ＬＣＤ保持部材は上側筐体との間にＬＣＤを挟持する事を特徴とする上記（１）項に記載の筐体構造。
【００３１】
（３）上側筐体はＬＣＤ表示面を見せる為の開口部を有することを特徴とする上記（１）項に記載の筐体構造。
【００３２】
（４）係止爪による組立保持構造部材は概ねＬＣＤの両側面に配設されることを特徴とする上記（１）項に記載の筐体構造。
【００３３】
（５）ＬＣＤ保持部材と下側筐体はネジ止めされていることを特徴とする上記（１）項に記載の筐体構造。
【００３４】
（６）ＬＣＤ保持部材と下側筐体は係止爪による組立保持構造部材で組立られていることを特徴とする上記（１）項に記載の筐体構造。
【００３５】
（７）上側筐体とＬＣＤは防水部材で防水されていることを特徴とする上記（１）項に記載の筐体構造。
【００３６】
【発明の効果】
以上詳述したように本発明によれば、防水機能の低下を防止し且つ、端末の筐体の横幅を狭くすることで、表示画面の大型化及び手に持ったときの操作性の向上を実現する情報携帯端末の筐体構造を提供することができる。
【図面の簡単な説明】
【図１】本発明の第１の実施形態に係る携帯情報端末における正面図である。
【図２】図１の長手方向（長辺）の線分Ｂ−Ｂにおける携帯情報端末の断面構成を示す図である。
【図３】図１の横方向の線分Ｃ−Ｃにおける携帯情報端末の断面構成を示す図である。
【図４】図１の横方向の線分Ｄ−Ｄにおける携帯情報端末の断面構成を示す図である。
【図５】図１の横方向の線分Ｅ−Ｅにおける携帯情報端末の断面構成を示す図である。
【図６】図４におけるＬＣＤ保持部材の係止部分を拡大した断面構成及び斜め方向から見た構成を示す図である。
【図７】図２の線分Ｆ−Ｆにおける水平断面であり、ＬＣＤ保持部材を取り付けた状態を下側から見た構成を示す図である。
【図８】図２に示す線分Ｇ−Ｇにおける水平断面を示す図である。
【図９】本発明の第２の実施形態に係る携帯情報端末におけるＬＣＤ保持部材の係止部分を拡大した断面構成を示す図である。
【図１０】従来の携帯情報端末を正面から見た外観構成を示す図である。
【図１１】従来の携帯情報端末の携帯情報端末の下側筐体（表示画面側を上面とする）を外した内部構成を示す図である。
【図１２】図１０の線分Ａ−Ａにおける断面構成を示す図である。
【符号の説明】
１…携帯情報端末
２…液晶表示素子（ＬＣＤ）
２ａ…長方形画面
３…キー
４…上側筐体
５…下側筐体
６…上下筐体防水部材
７…ネジ
８…ＬＣＤ防水部材
９…ＬＣＤ保持部材
９ａ…係止爪
９ｂ…ネジ穴
９ｃ，９ｄ…ブラケット
１０…回路基板
１２…電池室
１３…電池
１４…電池蓋
１６…ガイド部材
１６ａ…孔[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a housing structure of a portable information terminal that needs to be downsized in order to improve portability.
[0002]
[Prior art]
2. Description of the Related Art Generally, a portable information terminal such as an electronic organizer or the like having a communication function and a barcode reading function, such as a PDA, has a plurality of keys for performing input operations and processing operations, and a liquid crystal display element for displaying information. (LCD) display screen is provided.
[0003]
For example, FIG. 10 shows an external configuration of a conventional portable information terminal as viewed from the front, and FIG. 11 shows an internal configuration of the portable information terminal in which a lower housing (the display screen side is an upper surface) is removed. FIG. 12 shows a cross-sectional configuration taken along line AA in FIG.
[0004]
In the configuration of the portable information terminal 30, the LCD 32 is held by an LCD holding member 33, and a plurality of bracket portions 34 provided so as to protrude outward around the LCD holding member 33 are screwed by an upper housing 43. It is screwed and attached to a boss 37 provided in the inside 31. The lower housing 38 and the upper housing 31 are integrally assembled by the screws 37.
[0005]
As shown in FIG. 12, the contact surface (opposite surface) between the upper housing 31 and the LCD 32 extends over the entire periphery of the LCD 32 with an LCD waterproof member 36 made of an elastic member such as rubber interposed therebetween, so that water from the outside is exposed. Prevents intrusion. In order to exert the waterproof function, the LCD waterproof member 36 needs to be crushed uniformly over the entire circumference. For example, as shown in FIG.
[0006]
[Problems to be solved by the invention]
In the portable information terminal described above, a key operation is often performed while being held by hand, rather than being operated on a desk. Therefore, in order to make it easy to hold in the hand, it is desirable that the width of the housing is set to a size that can fit in the palm. In the above-described example, since the waterproof member needs to be crushed with an equal force for waterproofing, the bracket portion 34 is arranged around the LCD 32 and screwed. As shown in FIG. 11, the width of the housing is obtained by adding the width of the brackets 34 on both sides, the thickness of the waterproofing member for the housing, and the thickness of the housing itself to the width of the LCD holding member 33. It has become.
[0007]
Normally, the user wants to enlarge the display screen of the LCD 32 in order to make the displayed information easy to see, and also wants to reduce the size and weight of the terminal, including reducing the width of the terminal for easy holding. Therefore, when the portable information terminal is viewed from the display screen side, by narrowing a portion serving as an edge of the screen, the size of the display screen can be increased or the width of the terminal can be reduced.
[0008]
However, the fastening structure on the long side of the LCD 32 is indispensable for the function of the LCD waterproof member 36 to function, and in the conventional structure, the bracket for the screw cannot be removed even for fastening on the long side. .
Therefore, the present invention prevents the deterioration of the waterproof function and reduces the lateral width of the terminal housing, thereby realizing a large display screen and an improved operability when held in a hand. The purpose is to provide body structure.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a portable information terminal that is portable and performs various information processing, in which electronic device parts including a rectangular display element having a display screen are housed, and the display screen is exposed on the upper surface. A housing having an opening for allowing the display device to be fixed to the housing so that the display screen is exposed to the opening of the housing; and A locking claw provided so as to extend to a part of an opposing side of the element holding member, and an adjoining inner wall of the housing, when the display element holding member is assembled, A guide member that contacts the periphery and is fitted to a predetermined position, and has a hole provided at each position where the locking claw contacts, and the locking claw is fitted into the hole. By combining, the above display element The serial display element holding member to provide a housing structure of the portable information terminal held in the housing.
[0010]
In the housing structure of the portable information terminal, the locking claw is provided on one of two sets of opposing sides of the display element holding member, and the other set of screws is provided with a screw. Is provided. In addition, a waterproof member is provided between the display element and the inner wall of the housing, and is provided with a waterproof function by a uniform pressing by the locking claw of the display element holding member and the screwing of the bracket portion. I do.
[0011]
In the housing structure of the portable information terminal having the above configuration, the display element holding member for holding the display element is locked to the upper housing by a locking claw provided on the long side, and the display element waterproof member is connected to the upper housing. The body and the display element holding member are uniformly compressed to provide waterproofing, and the width of the housing is reduced by the length of the unnecessary bracket for screwing, which is unnecessary. The display screen of the element can be enlarged.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows an external configuration of the portable information terminal according to the first embodiment of the present invention as viewed from the front (upper side having a display screen), and FIG. 2 is a line segment in the longitudinal direction (long side) of FIG. 2 shows a cross-sectional configuration of the portable information terminal along BB. FIG. 3 shows a cross-sectional configuration of the portable information terminal along a horizontal line segment CC in FIG. 1, FIG. 4 shows a cross-sectional configuration of the portable information terminal along a horizontal line segment DD in FIG. 5 shows a cross-sectional configuration of the portable information terminal along a horizontal line segment EE in FIG. 1, and FIGS. 6A and 6B are enlarged cross-sectional views of a locking portion of the LCD holding member in FIG. Configuration FIG. 6 (c) shows a configuration in which the locking position of the locking claw in FIG. 6 (b) is viewed from an oblique direction. FIG. 7 is a horizontal cross section taken along line FF in FIG. 2 and shows a configuration in which the state where the LCD holding member is attached is viewed from below. FIG. 8 is a horizontal section taken along line GG shown in FIG. FIG. 2 is a cross-sectional view illustrating a configuration in which a state where the circuit board is mounted is viewed from below.
[0013]
As shown in FIG. 1, the portable information terminal 1 is provided with a screen 2a of a rectangular display element such as a liquid crystal display element (LCD) 2 on the front (upper surface), and performs information input and processing instructions near the screen 2a. Keys 3 are arranged. The terminal housing is formed of resin, metal, or a combination thereof, and is divided into, for example, an upper housing 4 and a lower housing 5 as shown in FIG. The member 6 is screwed and integrated at several places with screws 7 (shown in FIG. 3) around the periphery. In addition, a guard member for minimizing damage due to external impact such as dropping may be provided on the terminal housing exterior.
[0014]
As shown in FIG. 2, a window for the LCD 2 is opened in the upper housing 4, and an LCD holding member 9 for holding the LCD 2, whose entire periphery is covered by the LCD waterproof member 8, is attached as described later. , The display screen 2a of the LCD 2 is exposed. The LCD waterproof member 8 has a U-shaped cross section as shown in FIG. 4 and is made of rubber or the like, and has elasticity and waterproofness. The LCD waterproofing member 8 may be a water-impermeable sponge or a resin, as long as it has elasticity and waterproofness. The LCD holding member 9 is formed of a metal such as aluminum or a resin. Further, these may be formed in combination. A circuit board 10 on which various circuit elements are mounted is disposed below the LCD holding member 9.
[0015]
Further, a battery chamber 12 is provided in the lower housing 5, and a battery 13 serving as a main power supply is loaded and covered with a battery cover 14.
[0016]
Next, a configuration for locking the LCD holding member 9 to the above-described upper housing 4 will be described.
In this LCD holding member 9, as shown in FIG. 7, two short brackets 9c and 9d are provided on the short side, respectively, extending in the longitudinal direction. These are used when screwed to a boss 15 provided on the upper housing 4 as shown in FIG. Further, four locking claws 9a are provided which extend in the middle of each long side of the LCD holding member 9.
[0017]
As shown in FIG. 6, a guide member 16 for abutting against the LCD holding member 9 without looseness inside the upper housing 4 and guiding the LCD holding member 9 to be fitted correctly is provided over substantially the entire periphery of the LCD holding member 9. Is provided. A hole 16a as shown in FIG. 6 (a) is formed at a position where the guide member 16 comes into contact with the locking claw 9a when the LCD holding member 9 is assembled. This is because when the LCD holding member 9 is assembled to the upper housing 4, as shown in FIG. 6 (b), the locking claws 9 a are fitted and fixed in the holes 16 a, and the length of the LCD 2 and the LCD waterproof member 8 is reduced. The side (longitudinal direction) side is locked. FIG. 6C shows a state in which four locking claws 9a are fitted in the holes 16a. In this locking, a hole 16a is formed at a position where a force (press) for pressing the LCD 2 against the inner wall of the upper housing 4 acts.
[0018]
Then, as shown in FIGS. 3 and 8, the circuit board 10 is superimposed, and four bracket portions 9 c and 9 d are fixed to the boss portion 15 of the upper housing 4 by screws 11. The screw hole 9b shown in FIG. 7 is a hole used for fixing the lower housing 5 to the LCD holding member 9 with the screw 7 and the boss 17 as shown in FIG.
[0019]
With such a structure, both short sides of the LCD holding member 9 are locked by screws with the bracket portions 9c and 9d, and both long sides are locked by fitting the locking claws 9a. Therefore, the screwing bracket portion which was conventionally required in the lateral width direction is eliminated, and the lateral width of the housing can be reduced.
[0020]
This embodiment is an example in which four locking claws 9a are provided, but the number is not limited as long as the LCD holding member 9 compresses the LCD waterproof member 8 evenly to provide waterproofing. It may be just provided. Further, although the example in which the locking claw 9a is provided on the long side of the LCD holding member 9 has been described, it is needless to say that the locking claw 9a may be provided on the short side.
[0021]
With the above configuration, the LCD holding member is held in a state where it is locked while being pressed against the upper housing by the locking claw provided on the long side, and the conventional bracket used for screwing is used. There is no need to provide any parts. Thus, the width of the portable information terminal 1 can be reduced if the LCD is the same as the conventional one, and the display screen of the LCD can be enlarged if the width is the same as the conventional one. Further, the waterproof function can be exerted by pressing the LCD waterproof member uniformly between the upper housing and the LCD holding member by pressing.
[0022]
Next, FIG. 9 is a diagram showing an enlarged cross-sectional configuration of a locking portion of an LCD holding member in a portable information terminal according to a second embodiment of the present invention.
[0023]
In the above-described first embodiment, the LCD holding member is provided with a locking claw, the upper housing is provided with a hole, and is locked by being fitted. However, in the second embodiment, The LCD holding member is locked to the upper housing by engagement of a projection of the LCD holding member with a key groove in the LCD holding member.
[0024]
As shown in FIG. 9, two projections 21 are provided on both long sides of the LCD holding member 9. The bracket portions 9c and 9d (not shown) are provided on both short sides. The upper housing 4 is provided with a key groove 22 at a position where the protrusion 21 comes into contact when assembled. The key groove 22 is provided in an L-shape, and the protrusion 21 is fitted into the key groove 22 as shown by an arrow, and is further slid and locked. In order to hold the projection 21 so as not to come off from the key groove 22, a stopper 23a is formed at the tip of the key 23, respectively.
[0025]
The procedure for attaching the LCD holding member 9 to the upper housing 4 is the same as that in the first embodiment described above. After the projection 21 of the LCD holding member 9 is engaged with the key groove 22, the LCD holding member 9 is overlaid on the circuit board 10. Together, the four bracket portions 9c and 9d are fixed to the boss 15 of the upper housing 4 by screws.
[0026]
As described above, the second embodiment has a structure in which the protrusion on the long side of the LCD holding member is provided and is engaged with the key groove of the upper housing 4. Since there is no bracket for stopping, the lateral width of the housing can be reduced. In addition, the waterproof function can be exhibited by uniformly compressing the LCD waterproof member between the upper housing and the LCD holding member.
[0027]
The portable information terminal described above has functions of a data processing function by calculation and calculation, a symbol information reading function of reading a symbol such as a bar code, a communication function using telephone line, wireless communication, optical communication, or cable communication, and imaging of an image. Processing and playback display processing function, text creation function, input function for input by key operation and writing, voice input / output function, memory function with built-in memory and removable memory, map function including DPS, etc. are combined and installed It is assumed that the device will be. The first and second embodiments can be easily applied to these portable information terminals.
[0028]
Although the above embodiments have been described, the present specification also includes the following inventions.
[0029]
(1) a locking claw for locking the upper housing and the LCD holding member;
A housing structure characterized in that the width of the housing can be configured with a slight increase in size relative to the width of the LCD by fitting the locking claws and assembling and holding with a hole to be hooked.
[0030]
(2) The housing structure according to the above (1), wherein the LCD holding member holds the LCD between the upper housing and the LCD holding member.
[0031]
(3) The housing structure according to the above (1), wherein the upper housing has an opening for showing an LCD display surface.
[0032]
(4) The housing structure according to the above item (1), wherein the assembling / holding structural members by the locking claws are generally disposed on both side surfaces of the LCD.
[0033]
(5) The housing structure according to the above (1), wherein the LCD holding member and the lower housing are screwed.
[0034]
(6) The housing structure according to the above item (1), wherein the LCD holding member and the lower housing are assembled by an assembling / holding structure member using locking claws.
[0035]
(7) The housing structure according to the above (1), wherein the upper housing and the LCD are waterproofed by a waterproof member.
[0036]
【The invention's effect】
As described in detail above, according to the present invention, the waterproof function is prevented from lowering, and the lateral width of the terminal housing is reduced, thereby increasing the size of the display screen and improving the operability when held in the hand. It is possible to provide a housing structure of an information portable terminal to be realized.
[Brief description of the drawings]
FIG. 1 is a front view of a portable information terminal according to a first embodiment of the present invention.
FIG. 2 is a diagram showing a cross-sectional configuration of the portable information terminal along a line BB in a longitudinal direction (long side) of FIG.
FIG. 3 is a diagram illustrating a cross-sectional configuration of the portable information terminal along a horizontal line segment CC in FIG. 1;
FIG. 4 is a diagram showing a cross-sectional configuration of the portable information terminal along a horizontal line segment DD in FIG. 1;
FIG. 5 is a diagram showing a cross-sectional configuration of the portable information terminal along a horizontal line segment EE in FIG. 1;
6 is a diagram showing an enlarged cross-sectional configuration and a configuration viewed from an oblique direction of a locking portion of the LCD holding member in FIG. 4;
FIG. 7 is a horizontal cross-sectional view taken along line FF in FIG. 2, showing a configuration in which the LCD holding member is attached as viewed from below.
FIG. 8 is a diagram showing a horizontal cross section taken along line GG shown in FIG. 2;
FIG. 9 is a diagram illustrating an enlarged cross-sectional configuration of a locking portion of an LCD holding member in a portable information terminal according to a second embodiment of the present invention.
FIG. 10 is a diagram showing an external configuration of a conventional portable information terminal viewed from the front.
FIG. 11 is a diagram showing an internal configuration of a conventional portable information terminal in which a lower housing (a display screen side is an upper surface) of the portable information terminal is removed.
12 is a diagram showing a cross-sectional configuration along line AA in FIG. 10;
[Explanation of symbols]
1: Portable information terminal 2: Liquid crystal display (LCD)
2a ... rectangular screen 3 ... key 4 ... upper housing 5 ... lower housing 6 ... upper and lower housing waterproof member 7 ... screw 8 ... LCD waterproof member 9 ... LCD holding member 9a ... locking claw 9b ... screw holes 9c, 9d ... Bracket 10 ... Circuit board 12 ... Battery chamber 13 ... Battery 14 ... Battery lid 16 ... Guide member 16a ... Hole

Claims (4)

携帯可能で種々の情報処理を行う携帯情報端末において、
表示画面を持つ矩形形状の表示素子を含む電子機器部位を収納し、上面に該表示画面を露出させるための開口部を有する筐体と、
上記筐体の開口部に上記表示画面が露出するように上記表示素子を該筐体に固定させるための表示素子保持部材と、を備え、さらに、
上記表示素子保持部材における対向する辺の一部にそれぞれ延出するように設けられた係止爪と、
上記筐体内壁に隣接し、上記表示素子保持部材を組み付けた際に、該表示素子保持部材の周囲に当接して、所定位置に嵌装されるようにガイドし、上記係止爪が当接するそれぞれの箇所に孔が設けられたガイド部材と、を具備し、
上記係止爪が上記孔に嵌合することにより、上記表示素子が上記表示素子保持部材により上記筐体内に保持されることを特徴とする携帯情報端末の筐体構造。In a portable information terminal that is portable and performs various information processing,
A housing housing an electronic device part including a rectangular display element having a display screen, and having an opening on the upper surface for exposing the display screen,
A display element holding member for fixing the display element to the housing such that the display screen is exposed to the opening of the housing, further comprising:
A locking claw provided to extend to a part of the opposite side of the display element holding member,
When the display element holding member is assembled adjacent to the inner wall of the housing, the display element holding member comes into contact with the periphery of the display element holding member, and is guided to be fitted in a predetermined position, and the locking claw contacts. A guide member provided with a hole at each location,
A housing structure for a portable information terminal, wherein the display element is held in the housing by the display element holding member by fitting the locking claw into the hole. 上記携帯情報端末の筐体構造において、
上記係止爪は、上記表示素子保持部材の対向する辺のうち、長辺となる一方の組に設けられ、上記長辺と同等若しくは短辺となる他方の組には、ネジ止め用のブラケット部が設けられることを特徴とする請求項１に記載の携帯情報端末の筐体構造。In the housing structure of the portable information terminal,
The locking claw is provided on one of the long sides of the opposing sides of the display element holding member, and the other set on the same side or the short side as the long side is provided with a bracket for screwing. The housing structure of the portable information terminal according to claim 1, wherein a portion is provided. 上記携帯情報端末の筐体構造において、
上記表示素子と上記筐体の開口部周囲の内壁との間に設けられ、上記表示素子保持部材の係止爪による押圧と上記ブラケット部の螺着とによる均一な押圧により圧縮される、防水機能する防水部材を、さらに具備することを特徴とする請求項２に記載の上記携帯情報端末の筐体構造。In the housing structure of the portable information terminal,
A waterproof function provided between the display element and the inner wall around the opening of the housing and compressed by uniform pressing by the locking claw of the display element holding member and screwing of the bracket part. The housing structure of the portable information terminal according to claim 2, further comprising a waterproofing member. 携帯可能で種々の情報処理を行う携帯情報端末において、
表示画面を持つ矩形形状の表示素子を含む電子機器部位を収納し、上面に該表示素子の表示画面を露出させるための開口部を有する筐体と、
上記筐体の開口部に表示画面が露出するように上記表示素子を該筐体に固定させるための表示素子保持部材と、を備え、さらに、
上記表示素子保持部材の対向する辺のうち、長辺となる一方の両辺の端部でそれぞれ延出するように設けられた突起部と、他方の短辺となる両辺の端部にそれぞれ設けられたネジ止め用ブラケット部と、
上記筐体内壁に隣接し、上記表示素子保持部材を組み付けた際に、該表示素子保持部材の周囲端に当接して、所定位置に嵌装されるようにガイドし、上記突起部が当接するそれぞれの箇所にカギ溝が設けられたガイド部材と、
を具備し、
上記突起部が上記カギ溝に嵌め込まれることにより、上記表示素子が上記表示素子保持部材により上記筐体内壁へ押し付けられつつ保持されることを特徴とする携帯情報端末の筐体構造。In a portable information terminal that is portable and performs various information processing,
A housing that houses an electronic device part including a rectangular display element having a display screen and has an opening on the upper surface for exposing the display screen of the display element,
A display element holding member for fixing the display element to the housing so that a display screen is exposed at an opening of the housing, further comprising:
Of the opposing sides of the display element holding member, a projection provided to extend at one end of one of the long sides, and a projection provided at the end of both sides of the other short side. Bracket for screwing,
Adjacent to the inner wall of the housing, when the display element holding member is assembled, it comes into contact with the peripheral end of the display element holding member, guides it to be fitted at a predetermined position, and makes contact with the projection. A guide member provided with a key groove at each location,
With
The housing structure of the portable information terminal, wherein the projection is fitted into the key groove, whereby the display element is held while being pressed against the inner wall of the housing by the display element holding member.
JP2002228935A 2002-08-06 2002-08-06 Casing structure of personal digital assistance Pending JP2004070657A (en)

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