JP2010109772A - Mobile electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure wherein no gap is generated when cases are fastened while holding a packing therebetween. <P>SOLUTION: A mobile electronic apparatus includes a packing 55 which is disposed between a first case member 51 and a second case member 52 in a state that the packing is elastically pressed. The mobile electronic apparatus also includes: an overlapping part 5A of the case members formed at a side of fringe portions of the cases rather than the packing 55; and a screw 57 and a boss 58, formed between the packing 55 and the overlapping part 5A, for fastening coupling of the first case member 51 and the second case member 52 from a state where both the case members are abutted to each other at the overlapping part 5A. At least one of the first case member 51 and the second case member 52 is formed from a flexible material that is flexed by a load increased at the overlapping part 5A by fastening the screw 57. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、携帯電話機、ＰＤＡ(Personal Digital Assistant)、ゲーム機などの携帯電子機器に関する。   The present invention relates to a portable electronic device such as a mobile phone, a PDA (Personal Digital Assistant), and a game machine.

開閉可能に連結された２つの筐体を有する携帯電子機器が知られている。
携帯電子機器の筐体内部への水分の侵入を抑制するためにパッキンを用いる技術が知られている（例えば特許文献１）。
特許文献１には、パッキンの反発力に伴って、筐体を構成する第１ケース部と第２ケース部との間に生じ得る隙間による防水性の低下を、筐体の外周部に金属性のプロテクタを配設することにより防止する技術が開示されている。
プロテクタを設けると、ケース間の隙間が外部に露出することがないため、防水性が高くなるという利益が得られる。
特開２００５−３４０６８３号公報 2. Description of the Related Art A portable electronic device having two housings connected so as to be openable / closable is known.
A technique is known that uses packing in order to suppress the intrusion of moisture into the casing of a portable electronic device (for example, Patent Document 1).
In Patent Document 1, a decrease in waterproofness due to a gap that may occur between the first case portion and the second case portion constituting the casing due to the repulsive force of the packing is reported on the outer peripheral portion of the casing. A technique for preventing this problem by disposing a protector is disclosed.
When the protector is provided, the gap between the cases is not exposed to the outside, so that there is a benefit that the waterproof property is enhanced.
Japanese Patent Laying-Open No. 2005-340683

しかしながら、上記特許文献１に記載の技術では、プロテクタという剛性が高い部品を追加するため構造が複雑化する。   However, in the technique described in Patent Document 1, the structure is complicated because a part having high rigidity called a protector is added.

本発明の目的は、構造の複雑化を低減しつつ、防水性を向上させることのできる携帯電子機器を提供することにある。   The objective of this invention is providing the portable electronic device which can improve waterproofness, reducing the complexity of a structure.

本発明に関わる携帯電子機器は、第１ケース部材と第２ケース部材とを有して構成される筐体と、前記第１ケース部材と前記第２ケース部材との間に弾圧された状態で配設されるパッキンと、を有する。
前記筐体は、前記パッキンよりも前記筐体の端部側に形成され、前記第１ケース部材と前記第２ケース部材とが互いに当接して重なり合う重なり部と、前記パッキンと前記重なり部との間に形成され、第１ケース部材と前記第２ケース部材が前記重なり部において互いに当接された状態から、第１ケース部材と第２ケース部材との結合を締め付ける結合締付部と、を有する。
前記第１ケース部材と前記第２ケース部材の少なくとも一方は、前記結合締付部が前記結合を締め付けることによって前記重なり部で増大する負荷に起因して撓む可撓性材料で形成される。 The portable electronic device according to the present invention is in a state in which the portable electronic device is pressed between a housing configured to include a first case member and a second case member, and the first case member and the second case member. And a packing to be disposed.
The casing is formed closer to the end of the casing than the packing, and the first case member and the second case member come into contact with each other and overlap each other, and the packing and the overlapping portion A coupling tightening portion that is formed between the first case member and the second case member that are in contact with each other at the overlapping portion, and tightens the coupling between the first case member and the second case member. .
At least one of the first case member and the second case member is formed of a flexible material that is bent due to a load that is increased at the overlapping portion when the coupling tightening portion tightens the coupling.

好適には、前記重なり部は、前記筐体の端部に形成される。   Suitably, the said overlap part is formed in the edge part of the said housing | casing.

好適には、前記重なり部は、前記筐体における他の部位に比して肉厚に形成される。   Suitably, the said overlap part is formed thickly compared with the other site | part in the said housing | casing.

好適には、前記結合締付部が近接する前記重なり部の一部分が、該重なり部の他の部分に比して肉厚に形成される。   Preferably, a part of the overlapped part close to the coupling tightening part is formed thicker than the other part of the overlapped part.

好適には、前記筐体の一方の長さ方向における前記結合締付部よりも中央側であって、前記パッキンの近傍の領域には、部品が配設される。   Preferably, a part is disposed in a region closer to the center than the coupling tightening portion in one length direction of the casing and in the vicinity of the packing.

好適には、前記第１ケース部材と前記第２ケース部材の、前記重なり部に含まれる２つの面が、該２つの面の突合せ方向に対し異なる傾き角で形成されている。   Preferably, two surfaces of the first case member and the second case member included in the overlapping portion are formed with different inclination angles with respect to the abutting direction of the two surfaces.

本発明によれば、構造の複雑化を低減しつつ、防水性を向上させることのできる携帯電子機器を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the portable electronic device which can improve waterproofness can be provided, reducing the complexity of a structure.

本発明の実施形態を、携帯電話機を例として図面を参照して説明する。   An embodiment of the present invention will be described with reference to the drawings, taking a mobile phone as an example.

図１は、本発明の実施形態に関わる携帯電話機１の外観を開状態で示す斜視図である。図２は、携帯電話機１の外観を閉状態で示す斜視図である。図３は、携帯電話機１の信号処理系の構成を一例として示すブロック図である。   FIG. 1 is a perspective view showing an external appearance of a mobile phone 1 according to an embodiment of the present invention in an open state. FIG. 2 is a perspective view showing the appearance of the mobile phone 1 in a closed state. FIG. 3 is a block diagram showing an example of the configuration of the signal processing system of the mobile phone 1.

携帯電話機１は、いわゆる折り畳み式の携帯電話機として構成されている。
すなわち、携帯電話機１は、図１および図２に示すように、回転軸ＲＡ回りに相対回転可能に連結された第１筐体３及び第２筐体５を有し、開状態と閉状態との間で遷移可能である。第１筐体３及び第２筐体５は、それぞれの端部が回転の中心となる連結部６により連結されることにより携帯電話機１全体の筐体を構成する。
図２に示す閉状態では、第１筐体３及び第２筐体５が重ね合わされる。
図１に示す開状態では、第１筐体３及び第２筐体５の閉状態において互いに対向していた面が離間して、第１筐体３及び第２筐体５は同一平面上配置に概ね近い状態にまでなる。第１筐体３及び第２筐体５は、それぞれ概ね薄型直方体状に形成されており、閉状態では互いの輪郭が略一致する。 The mobile phone 1 is configured as a so-called foldable mobile phone.
That is, as shown in FIGS. 1 and 2, the mobile phone 1 has a first housing 3 and a second housing 5 that are connected so as to be relatively rotatable about the rotation axis RA, and are in an open state and a closed state. Can be transitioned between. The first casing 3 and the second casing 5 constitute the casing of the entire mobile phone 1 by connecting the end portions thereof by a connecting portion 6 that is the center of rotation.
In the closed state shown in FIG. 2, the first housing 3 and the second housing 5 are overlapped.
In the open state shown in FIG. 1, the surfaces facing each other in the closed state of the first housing 3 and the second housing 5 are separated from each other, and the first housing 3 and the second housing 5 are arranged on the same plane. It will be close to the state. The 1st housing | casing 3 and the 2nd housing | casing 5 are each formed in the substantially thin rectangular parallelepiped shape, and a mutual outline substantially corresponds in a closed state.

第１筐体３には、図３に示すように、通話用のマイクロフォン８７、通信のためのアンテナ８１、報知用のスピーカ８５が設けられている。第１筐体３には、さらに、撮像部８９、ユーザの操作を受け付ける操作部７が設けられている。
アンテナ８１は、第１筐体３等に内蔵され、あるいは、第１筐体３等に外付けされている。アンテナ８１が外付けの場合、その給電部が筐体内に引き込まれている。
操作部７は、図１に示すように、複数のキー３５を含んで構成されている。 As shown in FIG. 3, the first housing 3 is provided with a microphone 87 for calling, an antenna 81 for communication, and a speaker 85 for notification. The first housing 3 is further provided with an imaging unit 89 and an operation unit 7 that receives user operations.
The antenna 81 is built in the first housing 3 or the like, or is externally attached to the first housing 3 or the like. When the antenna 81 is externally attached, the power feeding portion is drawn into the housing.
As illustrated in FIG. 1, the operation unit 7 includes a plurality of keys 35.

第２筐体５には、例えば、通話用のスピーカ８３（図３参照）、画像や文字を表示する表示部９（図１）が設けられている。
表示部９は、例えば液晶パネルあるいは有機ＥＬパネルで構成され、その表示面が、第２筐体５の第１筐体３と対向する面内で比較的大きな面積を占めている。 The second casing 5 is provided with, for example, a speaker 83 for calling (see FIG. 3) and a display unit 9 (FIG. 1) for displaying images and characters.
The display unit 9 is configured by, for example, a liquid crystal panel or an organic EL panel, and the display surface occupies a relatively large area in the surface of the second housing 5 facing the first housing 3.

なお、以下では、第１筐体３及び第２筐体５において、閉状態において互いに対向し開状態で露出する面の側を“正面側”と呼ぶことがある。この場合、第１筐体３及び第２筐体５の各々において正面側と反対の側、つまり閉状態の厚さ方向（筐体の重ね合わせ方向）の表面側を“背面側”と呼ぶことがある。   Hereinafter, in the first housing 3 and the second housing 5, the side of the surface facing each other in the closed state and exposed in the open state may be referred to as the “front side”. In this case, in each of the first housing 3 and the second housing 5, the side opposite to the front side, that is, the surface side in the thickness direction in the closed state (the overlapping direction of the housings) is referred to as the “back side”. There is.

携帯電話機１は、図３に示すように、ＣＰＵ７１、メモリ７３、通信処理部７５、音響処理部７７及び画像処理部７９を有している。これら各部は、主として、第１筐体３内のメイン基板（不図示）等に設けられた電子部品等により構成されている。   As shown in FIG. 3, the mobile phone 1 includes a CPU 71, a memory 73, a communication processing unit 75, an acoustic processing unit 77, and an image processing unit 79. Each of these parts is mainly configured by an electronic component or the like provided on a main board (not shown) in the first housing 3.

ＣＰＵ７１は、キー３５を含む操作部７等の各種手段からの信号に基づいて所定の演算を行い、画像処理部７９等の各種手段の制御を実行する制御部として機能する。ＣＰＵ７１は、この制御の実行時に、メモリ７３から必要なデータやプログラムを適宜、読み出して用いる。
ＣＰＵ７１に、操作部７やメモリ７３の他に、制御対象のブロックとして、通信処理部７５、音響処理部７７および画像処理部７９が接続されている。 The CPU 71 performs a predetermined calculation based on signals from various means such as the operation unit 7 including the key 35 and functions as a control unit that executes control of various means such as the image processing unit 79. The CPU 71 reads out necessary data and programs from the memory 73 and uses them when executing this control.
In addition to the operation unit 7 and the memory 73, a communication processing unit 75, an acoustic processing unit 77, and an image processing unit 79 are connected to the CPU 71 as control target blocks.

通信処理部７５は、電波を利用した無線通信により、通信システム（電話網やインターネット）を介した他の携帯端末装置やサーバとの通信を行うための処理を行う。
より詳細には、音響処理部７７で処理された音響データ、画像処理部７９で処理された画像データ等の各種データが、ＣＰＵ７１でさらに処理されて通信処理部７５に入力される。通信処理部７５は、これらの各種データにより、自身で発振した信号を変調して、変調された信号を、アンテナ８１を介して送信する。
また、通信処理部７５は、アンテナ８１を介して受信した信号を復調し、復調したデータをＣＰＵ７１に出力する。復調したデータは、ＣＰＵ７１で必要な処理を受けた後、音響処理部７７や画像処理部７９に送られて通話やアプリケーションの実行に供される。 The communication processing unit 75 performs processing for performing communication with other portable terminal devices and servers via a communication system (telephone network or the Internet) by wireless communication using radio waves.
More specifically, various data such as acoustic data processed by the acoustic processing unit 77 and image data processed by the image processing unit 79 are further processed by the CPU 71 and input to the communication processing unit 75. The communication processing unit 75 modulates a signal oscillated by itself with these various data, and transmits the modulated signal via the antenna 81.
The communication processing unit 75 demodulates the signal received via the antenna 81 and outputs the demodulated data to the CPU 71. The demodulated data is subjected to necessary processing by the CPU 71 and then sent to the sound processing unit 77 and the image processing unit 79 to be used for calling and executing applications.

音響処理部７７は、ＣＰＵ７１からの音響データを電気信号に変換して、その信号を、通話用のスピーカ８３、又は、報知音等を出力するスピーカ８５に出力する。スピーカ８３及びスピーカ８５は、音響処理部７７からの電気信号を音響に変換し、その音響を出力する。一方、マイクロフォン８７は、入力された音響を電気信号に変換し、その信号を音響処理部７７に出力する。音響処理部７７は、マイクロフォン８７からの電気信号を音響データに変換し、その音響データをＣＰＵ７１に出力する。   The acoustic processing unit 77 converts the acoustic data from the CPU 71 into an electrical signal, and outputs the signal to the speaker 83 for call or the speaker 85 that outputs a notification sound or the like. The speaker 83 and the speaker 85 convert the electric signal from the sound processing unit 77 into sound and output the sound. On the other hand, the microphone 87 converts the input sound into an electrical signal and outputs the signal to the sound processing unit 77. The acoustic processing unit 77 converts the electrical signal from the microphone 87 into acoustic data, and outputs the acoustic data to the CPU 71.

画像処理部７９は、ＣＰＵ７１からの画像データを、表示部９に適合する画像信号に変換し、その信号を表示部９へ出力する。また、画像処理部７９は、撮像部８９から出力される撮像信号（画像データ）を所定のフォーマットの画像データに変換し、その画像データをＣＰＵ７１へ出力する。
メモリ７３は、制御データやプログラムを格納する以外に、画像や音声、さらには文書等のコンテンツを保存する。 The image processing unit 79 converts the image data from the CPU 71 into an image signal suitable for the display unit 9 and outputs the signal to the display unit 9. In addition, the image processing unit 79 converts the imaging signal (image data) output from the imaging unit 89 into image data of a predetermined format, and outputs the image data to the CPU 71.
In addition to storing control data and programs, the memory 73 stores contents such as images, sounds, and documents.

以上のように構成される携帯電話機１は、防水のための措置が施されている。防水策の一つとして、筐体内に水分が浸入するのを抑制するために、筐体を構成するケース間にパッキンが配設される。   The cellular phone 1 configured as described above is provided with a measure for waterproofing. As one of the waterproofing measures, a packing is provided between cases constituting the casing in order to prevent moisture from entering the casing.

図１および図２に示す第１筐体３や第２筐体５は、それぞれ、２つまたは３つのケースから構成される。
例えば、収納する部品点数が少ないため比較的薄い筐体（例えば、第２筐体５）は、“上ケース”と“下ケース”、あるいは“正面ケース”と“背面ケース”と呼ばれる２つのケースから構成される。以下、この２つのケースを“第１ケース部材”“第２ケース部材”とよぶ。
第１ケース部材と第２ケース部材のどちら側が正面側で、どちら側が背面側かは任意である。以下、便宜上、背面側のケース部材を第１ケース部材、表示部９が設けられた正面側のケース部材を第２ケース部材と呼ぶ。 The first housing 3 and the second housing 5 shown in FIGS. 1 and 2 are each composed of two or three cases.
For example, a relatively thin casing (for example, the second casing 5) because the number of components to be stored is small is two cases called “upper case” and “lower case” or “front case” and “rear case”. Consists of Hereinafter, these two cases are referred to as “first case member” and “second case member”.
Which side of the first case member and the second case member is the front side and which side is the back side is arbitrary. Hereinafter, for convenience, the back case member is referred to as a first case member, and the front case member provided with the display unit 9 is referred to as a second case member.

一方、収納する部品点数が多い等の理由で比較的厚い筐体（例えば、第１筐体３）は、２つのケースを重ねた二層構造の場合もあるが、背面ケースと正面ケースの中間にインナーケースを設けた三層構造を有する場合もある。また、第１筐体３の背面側には電池収容部の蓋が設けられ、当該蓋も筐体の一部を構成するケースの一種となる。   On the other hand, a relatively thick housing (for example, the first housing 3) may have a two-layer structure in which two cases are overlapped due to a large number of components to be stored. It may have a three-layer structure in which an inner case is provided. Further, a lid of the battery housing portion is provided on the back side of the first housing 3, and the lid is also a kind of case constituting a part of the housing.

パッキンは、筐体の周縁の近くに、ほぼ周縁に沿って閉環状に形成された溝に配設され、２つのケース間で挟み込まれることを基本とする。そして、ネジ等の結合部材によって、通常はパッキンより筐体内側寄りの数箇所でケース間を締め付ける。以下、この締め付け箇所の筐体部分（および、結合部材があるときは結合部材を含む）を“結合締付部”とよぶ。
パッキンは、ゴムや弾性樹脂などの弾性材料から形成されているため、締め付けたときのパッキンの変形によりケース間の隙間が埋められ防水が図られる。 The packing is basically disposed in a groove formed in a closed ring shape around the periphery of the casing, and is sandwiched between the two cases. The case is usually tightened between the cases at several locations closer to the inside of the housing than the packing by a coupling member such as a screw. Hereinafter, the housing portion of this tightening location (and including the coupling member when there is a coupling member) is referred to as a “coupling tightening portion”.
Since the packing is made of an elastic material such as rubber or elastic resin, the gap between the cases is filled by deformation of the packing when tightened, so that waterproofing is achieved.

結合締付部（ネジ等の結合部材）の配置は、一定の締付圧を印加したときにパッキンに対し、その全周に渉って均一に圧力がかかるようにするのが理想である。
そのためには結合締付部の箇所を可能な限り等間隔で数自体も多く配置するとよい。しかし、筐体内スペースの有効利用のためには結合締付箇所の数や配置箇所の選定に限界がある。
特に筐体内に配置する部品によっては位置がある程度、決められるものも多い。そのため、パッキンに対し全周に渉って均一に圧力をかけることは難しい場合がある。 Ideally, the arrangement of the coupling tightening portions (coupling members such as screws) is such that when a certain tightening pressure is applied, pressure is applied uniformly over the entire circumference of the packing.
For that purpose, it is preferable to arrange the number of the coupling tightening portions as many as possible at equal intervals. However, in order to effectively use the space in the housing, there is a limit to the number of coupling tightening points and the selection of the arrangement points.
In particular, there are many parts whose positions are determined to some extent depending on the components arranged in the housing. For this reason, it may be difficult to apply pressure uniformly over the entire circumference of the packing.

図４は、特定部品の配置によって、パッキンの締め付けを自由に行うことが困難な箇所の一例を示す分解斜視図である。具体的に図４は、図１の第２筐体５の先端を含む部分を示す分解斜視図である。
第２筐体５は、第１ケース部材５１と第２ケース部材５２を重ね合わせて構成する。第１ケース部材５１と第２ケース部材５２が形成する内部空間には、特に図示しないが、表示部９や通話用のスピーカ８３等の部品が収納される。 FIG. 4 is an exploded perspective view illustrating an example of a location where it is difficult to freely tighten the packing due to the arrangement of the specific components. Specifically, FIG. 4 is an exploded perspective view showing a portion including the tip of the second housing 5 of FIG.
The second housing 5 is configured by overlapping a first case member 51 and a second case member 52. In the internal space formed by the first case member 51 and the second case member 52, although not particularly illustrated, components such as the display unit 9 and the speaker 83 for calling are accommodated.

第２ケース部材５２に大きく開口する表示窓５３が形成されている。表示窓５３は、図１に示すように表示面が正面から視認できるように表示部９が配設される。
第２ケース部材５２は、表示窓５３の周囲に位置する枠状部分の内面側に、パッキン溝５４が閉環状に形成されている。一方、第１ケース部材５１にも、第２ケース部材５２のパッキン溝５４と対応する形状の他のパッキン溝が形成されている。
表示窓周囲の枠状部分は、第２ケース部材５２の幅方向が狭く、長さ方向が比較的広い。そのため、第２ケース部材５２の先端部分に、通話用のスピーカ８３（部品）を収納するスピーカ収納部８３Ａが形成されている。パッキン溝５４は、スピーカ収納部８３Ａおよび表示窓５３の外側を通って第２ケース部材５２の枠状部分に形成されている。 A display window 53 having a large opening is formed in the second case member 52. As shown in FIG. 1, the display unit 53 is disposed in the display window 53 so that the display surface can be viewed from the front.
In the second case member 52, a packing groove 54 is formed in a closed ring shape on the inner surface side of a frame-like portion located around the display window 53. On the other hand, another packing groove having a shape corresponding to the packing groove 54 of the second case member 52 is also formed in the first case member 51.
The frame-shaped portion around the display window is narrow in the width direction of the second case member 52 and relatively long in the length direction. For this reason, a speaker housing portion 83 </ b> A for housing a speaker 83 (component) for calling is formed at the tip portion of the second case member 52. The packing groove 54 is formed in the frame-shaped portion of the second case member 52 through the outside of the speaker housing portion 83 </ b> A and the display window 53.

パッキン５５は、弾性部材をパッキン溝５４に合わせた形状に成形して作られている。また、局所的な弛みを防止するためにパッキン５５は、所々に位置決め部５５Ａを有している。図４には示されていないが、パッキン溝５４に、位置決め部５５Ａに適合した形状の位置決め溝部が形成されている。位置決め部５５Ａを位置決め溝部に収納しながら、パッキン５５をパッキン溝５４に落とし込むと、パッキン５５に弛みが発生しない。この状態で第２ケース部材５２に第１ケース部材５１を重ね合わせ、所定の箇所をネジ止めする。   The packing 55 is made by molding an elastic member into a shape that matches the packing groove 54. Further, in order to prevent local slack, the packing 55 has positioning portions 55A in some places. Although not shown in FIG. 4, a positioning groove portion having a shape suitable for the positioning portion 55 </ b> A is formed in the packing groove 54. When the packing 55 is dropped into the packing groove 54 while the positioning portion 55A is housed in the positioning groove, the packing 55 is not slackened. In this state, the first case member 51 is overlaid on the second case member 52, and a predetermined portion is screwed.

ネジ止め箇所（結合締付部）は、第２ケース部材５２の幅方向両側では、通常等間隔に配置される。この幅方向両側の結合締付部のネジ穴を、図４では符号“５６Ａ”により示す。これらのネジ穴５６Ａは、ネジの錆防止等の観点から、パッキン溝５４内側の第２ケース部材部分に形成されている。ネジ穴５６Ａの形成箇所は、第２ケース部材５２の長いストレートの枠状部分なので、ネジ穴５６Ａの配置間隔を比較的大きくしてもパッキンへの締付圧を均一にできる。   The screwing points (coupling tightening portions) are usually arranged at regular intervals on both sides in the width direction of the second case member 52. The screw holes of the coupling tightening portions on both sides in the width direction are denoted by reference numeral “56A” in FIG. These screw holes 56A are formed in the second case member inside the packing groove 54 from the viewpoint of preventing rusting of the screws. Since the screw hole 56A is formed in a long, straight frame-like portion of the second case member 52, the tightening pressure on the packing can be made uniform even if the interval between the screw holes 56A is relatively large.

これに対し、スピーカ収納部８３Ａが、第２筐体５の一方の長さ方向（連結部６側と反対の方向）におけるネジ止め箇所よりも中央側であってパッキン５５の近傍に配置されるため、第２ケース部材５２の先端付近はスペースが限られ、スピーカ収納部８３Ａと、そのすぐ傍を通るパッキン溝５４との間にネジ穴を設けることができない。よって、符号“５６Ｂ”により示す２つのネジ穴が、第２ケース部材５２の２つのコーナー部付近に設けられている。
ネジ穴５６Ｂは、パッキン５５（パッキン溝５４）に対する相対位置関係がネジ穴５６Ａと同じではない。つまり、ネジ穴５６Ａはパッキン溝５４より筐体内部側に位置するのに対して、ネジ穴５６Ｂはパッキン溝５４の筐体外側に位置している。言い換えると、パッキン５５（パッキン溝５４）が、ネジ穴５６Ｂを避けるように筐体内部側をカーブして配置または形成されている。すなわち、筐体幅方向において、ネジ止め箇所は、パッキン５５と後述する重なり部５Ａとの間に形成されている。このパッキンとネジ止め箇所（ネジ穴）の配置関係が、本実施形態の特徴の一つである。 On the other hand, the speaker storage portion 83 </ b> A is arranged in the vicinity of the packing 55 on the center side with respect to the screwing portion in one length direction of the second housing 5 (direction opposite to the connecting portion 6 side). Therefore, the space near the tip of the second case member 52 is limited, and it is not possible to provide a screw hole between the speaker housing portion 83A and the packing groove 54 that passes through the speaker housing portion 83A. Accordingly, two screw holes indicated by reference numeral “56B” are provided in the vicinity of the two corner portions of the second case member 52.
The screw hole 56B is not the same as the screw hole 56A in the relative positional relationship with the packing 55 (packing groove 54). That is, the screw hole 56 </ b> A is located on the inside of the housing from the packing groove 54, while the screw hole 56 </ b> B is located on the outside of the housing of the packing groove 54. In other words, the packing 55 (packing groove 54) is arranged or formed by curving the inside of the housing so as to avoid the screw hole 56B. That is, in the housing width direction, the screwing portion is formed between the packing 55 and an overlapping portion 5A described later. This arrangement relationship between the packing and the screwing location (screw hole) is one of the features of this embodiment.

第２筐体５の筐体組み付けにおいては、第１ケース部材５１と第２ケース部材５２を重ね合わせた状態で、図４に示すように複数のネジ５７を、ネジ穴５６Ａおよびネジ穴５６Ｂに通す。ネジ５７が、第１ケース部材５１に固定したナットなどのボス部５８（図６（Ｂ）参照）と螺合するように、ネジ５７をドライバで回して第１ケース部材５１と第２ケース部材５２を締め付ける。
その後、第２筐体５の表示部９の表示面側（正面側）に、不図示のアクリル製のウインドカバー（透明化粧板）をゴミや水分進入に配慮した方法で貼り付ける。 In assembling the housing of the second housing 5, with the first case member 51 and the second case member 52 being overlaid, a plurality of screws 57 are inserted into the screw holes 56A and 56B as shown in FIG. Pass through. The first case member 51 and the second case member are rotated by a screwdriver so that the screw 57 is screwed with a boss portion 58 such as a nut (see FIG. 6B) fixed to the first case member 51. Tighten 52.
Thereafter, an unillustrated acrylic window cover (transparent decorative board) is attached to the display surface side (front side) of the display unit 9 of the second housing 5 by a method that takes dust and moisture into consideration.

図５に、組み立て後の第２筐体先端部分の背面側斜視図を示す。
図５に示す矢印は、図４のネジ穴５６Ｂとネジ５７とによる締付圧の印加を表している。
このようにコーナー部２箇所でネジによる締付を行うと、中央付近でのパッキン５５による反発力を十分に抑えることができず、図５の破線の丸印で示す中央付近を中心に隙間が生じやすい。また、隙間が生じない場合でも、パッキン５５に印加される締付圧が、この中央付近で低下し、このことが経時変化や水圧が大きい場合に水分の浸入の原因となる。 FIG. 5 is a rear perspective view of the distal end portion of the second housing after assembly.
The arrow shown in FIG. 5 represents the application of the clamping pressure by the screw hole 56B and the screw 57 of FIG.
When tightening with screws at two corners in this way, the repulsive force due to the packing 55 in the vicinity of the center cannot be sufficiently suppressed, and there is a gap around the center indicated by the dotted circle in FIG. Prone to occur. Even when no gap is generated, the tightening pressure applied to the packing 55 decreases near the center, which causes moisture permeation when the change over time or the water pressure is large.

第２筐体５の先端部分は、図４から分かるように、部品配置のためケースの形状が複雑であり、パッキン５５もカーブしている。したがって、先端部分は、本来なら両サイドのストレート部分よりネジ止め箇所の配置密度を上げる必要がある。
しかし、表示部９の画面を大きくする要請と筐体の小型化の要請とを同時に満たすために、通話用のスピーカ８３の大きさに対して第２ケース部材５２の枠状部分の幅に余裕がない。そのため、先端側のコーナー部しかネジ止めできない。 As can be seen from FIG. 4, the tip of the second housing 5 has a complicated case shape due to component placement, and the packing 55 is also curved. Therefore, it is necessary to increase the arrangement density of the screwed portions at the tip portion as compared with the straight portions on both sides.
However, in order to satisfy the request for enlarging the screen of the display unit 9 and the request for downsizing the housing at the same time, the width of the frame-like portion of the second case member 52 is larger than the size of the speaker 83 for telephone call. There is no. Therefore, only the corner portion on the tip side can be screwed.

図６（Ａ）は、第２ケース部材５２の先端部付近の背面図である。図６（Ｂ）は、図６（Ａ）のＡ−Ａ線に沿った断面図である。なお、この断面では部品やウインドカバー等は省略している。
図６（Ｂ）のように、第２筐体５は第２ケース部材５２と第１ケース部材５１を重ねて構成される。第２ケース部材５２と第１ケース部材５１を重ねた状態で接触する部分は、図６（Ｂ）の破線の丸印で囲む部分であり、以下、この部分を重なり部５Ａと呼ぶ。重なり部５Ａは、図６（Ａ）の背面図では、第２ケース部材５２の最も外側の周縁部分（端部）である。つまり、重なり部５Ａは、パッキン５５よりも第２筐体５の端部側に形成される。 FIG. 6A is a rear view of the vicinity of the distal end portion of the second case member 52. FIG. 6B is a cross-sectional view taken along the line AA in FIG. In this section, parts and window covers are omitted.
As shown in FIG. 6B, the second housing 5 is configured by overlapping the second case member 52 and the first case member 51. The portion that comes into contact with the second case member 52 and the first case member 51 in an overlapping state is a portion that is surrounded by a dotted circle in FIG. 6B, and this portion is hereinafter referred to as an overlapping portion 5A. The overlapping portion 5A is the outermost peripheral portion (end portion) of the second case member 52 in the rear view of FIG. That is, the overlapping portion 5 </ b> A is formed on the end side of the second housing 5 with respect to the packing 55.

なお、図６（Ｂ）はネジ５７を締め付けた状態であるため、ネジ５７の周囲で、第１ケース部材５１に設けられたボス部５８の先端面が第２ケース部材５２の内面に接触している。しかし、単に、第２ケース部材５２と第１ケース部材５１を重ねた状態（ネジ５７を締めない状態）では、重なり部５Ａではケース部材同士が接触しているが、ボス部５８の先端面は第２ケース部材５２の内面に接触していない。
よって、ネジ５７を締めると第１ケース部材５１のボス部５８が第２ケース部材５２に引き寄せられ、その力が重なり部５Ａに作用する。しかし、重なり部５Ａは２つのケース部材が当接した状態から更に当接方向に力が加わる。このため、第１ケース部材５１に対して、ボス部５８を支点に両サイドを外側（図６（Ｂ）の上側）に曲げる力が作用する。 6B shows a state in which the screw 57 is tightened, and therefore, the front end surface of the boss portion 58 provided on the first case member 51 contacts the inner surface of the second case member 52 around the screw 57. ing. However, in the state where the second case member 52 and the first case member 51 are simply overlapped (when the screw 57 is not tightened), the case members are in contact with each other in the overlapping portion 5A, but the tip surface of the boss portion 58 is The second case member 52 is not in contact with the inner surface.
Therefore, when the screw 57 is tightened, the boss portion 58 of the first case member 51 is attracted to the second case member 52, and the force acts on the overlapping portion 5A. However, the overlapping portion 5A is further applied in the contact direction from the state in which the two case members are in contact. For this reason, the force which bends both sides to the outer side (upper side of FIG. 6B) acts on the 1st case member 51 by using the boss | hub part 58 as a fulcrum.

第２ケース部材５２は、表示部９（図１参照）その他の部品が固定され、ウインドカバーも貼られているため全体として剛性が高い。
これに対し、第１ケース部材５１は、特に重なり部５Ａ、ボス部５８およびパッキン溝５４などの凹凸がない幅方向の中央付近で曲げ応力に弱い。したがって、上記重なり部５Ａで発生し、ボス部５８を支点に両サイドを外側に曲げる力が作用すると、容易に図示の矢印のように撓む。言い換えると、第１ケース部材５１は、結合締付部（ネジ５７およびボス部５８）がケース部材間の結合を締め付けることによって重なり部５Ａで増大する負荷に起因して撓む可撓性材料で形成される。可撓性材料の代表は樹脂であるが、それ以外の材料から第１ケース部材５１が形成されてもよい。 Since the display part 9 (refer FIG. 1) other components are fixed and the window cover is also affixed, the 2nd case member 52 has high rigidity as a whole.
In contrast, the first case member 51 is vulnerable to bending stress particularly in the vicinity of the center in the width direction where there is no unevenness such as the overlapping portion 5A, the boss portion 58, and the packing groove 54. Therefore, when a force that is generated at the overlapping portion 5A and bends both sides outward with the boss portion 58 as a fulcrum acts, it easily bends as shown in the arrow. In other words, the first case member 51 is a flexible material that bends due to a load that increases at the overlapping portion 5A when the coupling tightening portion (screw 57 and boss portion 58) tightens the coupling between the case members. It is formed. The representative of the flexible material is resin, but the first case member 51 may be formed from other materials.

この第１ケース部材５１の撓みは、特に図６（Ａ）のスピーカ収納部８３Ａに近接するパッキン溝５４の部分で幅方向中央に近いほど大きな締付圧となって作用する。このため、この付近にネジが配設されていないことによる隙間の発生を防止し、あるいは、締付圧の低下を防止する。よって、このようなネジ配設が難しい部分で防水性能が高まる。   The bending of the first case member 51 acts as a greater tightening pressure as it is closer to the center in the width direction, particularly in the portion of the packing groove 54 adjacent to the speaker housing portion 83A in FIG. For this reason, the generation | occurrence | production of the clearance gap by the screw not being arrange | positioned in this vicinity is prevented, or the fall of a clamping pressure is prevented. Accordingly, the waterproof performance is enhanced in such a portion where it is difficult to dispose the screw.

以上は一例であり、本実施形態では、防水性能低下が懸念される箇所に撓みによって付加的に締付圧を増強する。そのため、特別な部品の追加を必要としないで、かつ構造の複雑化を低減しつつ携帯電話機１の防水性能を向上させることができる。   The above is an example, and in this embodiment, the tightening pressure is additionally increased by bending at a place where the waterproof performance is concerned. Therefore, the waterproof performance of the mobile phone 1 can be improved without adding any special parts and reducing the complexity of the structure.

どの部分にケース部材の撓みによって付加的に締付圧を増強するかは、重なり部５Ａの当接方向への突出量で指定できる。つまり、スピーカ収納部８３Ａ付近の幅方向中央部の隙間防止には、例えば、図６（Ａ）に斜線で示し、重なり部５Ａを構成する周縁部（コーナーエッジ部）を、他の重なり部５Ａを構成する周縁部より若干高くする（肉厚に形成させる）。つまり、この部分のみ周縁部を、筐体の厚さ方向の中央側に突出させる（肉厚に形成させる）ことが望ましい。
さらに望ましくは、少なくともコーナー部から先端辺に沿ってスピーカ収納部８３Ａに近づく周縁に、スピーカ収納部８３Ａに近づくほど徐々に突出量が減少するテーパーをつけるとよい。 To which part the tightening pressure is additionally increased by bending of the case member can be specified by the protruding amount in the contact direction of the overlapping portion 5A. That is, in order to prevent the gap in the central portion in the width direction in the vicinity of the speaker housing portion 83A, for example, a hatched portion in FIG. It is made slightly higher than the peripheral edge part (the thickness is formed). In other words, it is desirable that only this portion has a peripheral edge projecting toward the center in the thickness direction of the casing (thickly formed).
More preferably, a taper that gradually decreases the protrusion amount as the speaker housing part 83A is approached may be provided on at least the peripheral edge that approaches the speaker housing part 83A along the front end side from the corner part.

また、図７（Ａ）に示すように第１ケース部材５１の、重なり部５Ａとなる突合せ面を、突合せ方向Ｄと直交する方向から所定の角度を持つ傾斜面Ｓとしてもよい。傾斜面Ｓの傾斜角度は、ネジ締付による圧力がかかると第１ケース部材５１（および第２ケース部材５２）が変形して傾斜面Ｓが、均一な面内圧力分布で第２ケース部材５２側の突合せ面と面接触する程度とすることが望ましい。
この傾斜面Ｓは、第２ケース部材５２に設けてもよいし（図７（Ｂ））、第１ケース部材５１と第２ケース部材５２の両方に設けてもよい。
以上のように傾斜面Ｓを設けると、ネジ締付後に突合せ面の面内圧力分布が幅方向に均一化するため、より水分の浸入がし難くなる。 Further, as shown in FIG. 7A, the abutting surface that becomes the overlapping portion 5 </ b> A of the first case member 51 may be an inclined surface S having a predetermined angle from the direction orthogonal to the abutting direction D. As for the inclination angle of the inclined surface S, the first case member 51 (and the second case member 52) is deformed when a pressure is applied by screw tightening, so that the inclined surface S has a uniform in-plane pressure distribution and the second case member 52. It is desirable to make the surface contact with the butt surface on the side.
The inclined surface S may be provided on the second case member 52 (FIG. 7B), or may be provided on both the first case member 51 and the second case member 52.
When the inclined surface S is provided as described above, the in-plane pressure distribution of the abutting surfaces becomes uniform in the width direction after the screws are tightened, so that it is difficult for water to enter.

本発明は、以上の実施形態に限定されず、種々の態様で実施されてよい。   The present invention is not limited to the above embodiment, and may be implemented in various aspects.

携帯電子機器は、携帯電話機に限定されない。例えば、携帯電子機器は、ノートパソコン、ＰＤＡ、ゲーム機、カメラであってもよい。また、携帯電子機器が携帯電話機である場合、第１筐体（内包筐体及び外装筐体を有する筐体）と、第２筐体との役割分担（収容する電子部品）は、実施形態と逆であってもよい。   The mobile electronic device is not limited to a mobile phone. For example, the portable electronic device may be a notebook computer, a PDA, a game machine, or a camera. Further, when the portable electronic device is a mobile phone, the role sharing (accommodating electronic components) between the first housing (the housing having the inner housing and the outer housing) and the second housing is the same as that of the embodiment. The reverse may be possible.

携帯電子機器が携帯電話機１の場合に、図３に各ブロックで示す構成部品が、第１筐体３と第２筐体５のどちらに設けられるかは、上記実施形態の説明に必ずしも限定されない。例えば、アンテナ８１や撮像部８９は、第１筐体３に限らず、第２筐体５に配設してもよい。音響処理部７７や画像処理部７９の一部を第２筐体５に設けてもよい。
ただし、第２筐体５に設けられる表示部９や通話用のスピーカ８３、第１筐体３に設けられる操作部７等は、有効に機能を発揮するために配置位置がおおよそ決められている。 In the case where the portable electronic device is the mobile phone 1, it is not necessarily limited to the description of the above embodiment whether the component shown by each block in FIG. 3 is provided in the first housing 3 or the second housing 5. . For example, the antenna 81 and the imaging unit 89 may be disposed not only in the first housing 3 but also in the second housing 5. A part of the sound processing unit 77 and the image processing unit 79 may be provided in the second housing 5.
However, the arrangement position of the display unit 9 provided in the second casing 5, the speaker 83 for calling, the operation unit 7 provided in the first casing 3, and the like is roughly determined in order to effectively function. .

本実施形態の形態で、配置が決められているため、数箇所の“結合締付部”の位置を規制する電子部品は、通話用のスピーカ８３に限定されない。また、第１ケース部材５１と第２ケース部材５２との周縁部同士が突き合わされる重なり部とパッキンとの間に結合締付部を配置する箇所は、第２筐体５側に存在することに限定されない。例えば、第１筐体３の先端部分、第１筐体３の電池蓋部なども、図６および図７と同様な撓み力の作用による防水強化構造としてよい。   Since the arrangement is determined in the form of the present embodiment, the electronic component that regulates the positions of several “coupling tightening portions” is not limited to the speaker 83 for calling. Moreover, the location which arrange | positions a joint clamping part between the overlap part and packing which the peripheral parts of the 1st case member 51 and the 2nd case member 52 face each other exists in the 2nd housing | casing 5 side. It is not limited to. For example, the distal end portion of the first housing 3 and the battery lid portion of the first housing 3 may also have a waterproof reinforced structure due to the action of a bending force similar to that shown in FIGS.

結合締付部は、ネジとボス部の組み合わせに限定されない。
結合締付部は、ネジ等のようにケースと別体の結合部材を必要としないで、ケースと一体化した形態も存在する。
例えば、２つのケース間のホックと受け部が、それぞれのケースと一体に形成される形態が存在する。ホックを受け部に係合させてケース間を強く押すと、ホックが受け部から抜けないようになって締付圧が印加された状態となる。
このような押圧ホックをネジ止めの代わりに“結合締付部”として配設してもよい。その他、締付圧が印加された状態となる結合締付部なら、その形態は任意である。 The coupling tightening portion is not limited to a combination of a screw and a boss portion.
The coupling tightening portion does not require a coupling member separate from the case like a screw or the like, and there is a form integrated with the case.
For example, there is a form in which a hook and a receiving part between two cases are formed integrally with each case. When the hook is engaged with the receiving portion and pressed strongly between the cases, the hook is prevented from coming off from the receiving portion, and a tightening pressure is applied.
Such a pressing hook may be arranged as a “joint tightening portion” instead of screwing. In addition, the form is arbitrary as long as it is a coupling tightening portion in which a tightening pressure is applied.

実施形態に関わる携帯電話機の外観を開状態で示す斜視図。The perspective view which shows the external appearance of the mobile telephone in connection with embodiment in an open state. 実施形態に関わる携帯電話機の外観を閉状態で示す斜視図。The perspective view which shows the external appearance of the mobile telephone concerning embodiment in a closed state. 実施形態に関わる携帯電話機の信号処理系の構成を一例として示すブロック図。The block diagram which shows the structure of the signal processing system of the mobile telephone concerning embodiment as an example. 本実施形態に関わる携帯電話機の第２筐体の先端を含む部分の分解斜視図。The disassembled perspective view of the part containing the front-end | tip of the 2nd housing | casing of the mobile telephone concerning this embodiment. 本実施形態に関わる携帯電話機についての、組み立て後の第２筐体先端部分の背面側斜視図。The back side perspective view of the 2nd housing | casing front-end | tip part after an assembly | attachment about the mobile phone concerning this embodiment. （Ａ）は第２ケース部材の先端部付記の背面図。（Ｂ）は（Ａ）のＡ−Ａ線に沿った断面図。(A) is a rear view of the tip of the second case member. (B) is sectional drawing which followed the AA line of (A). （Ａ）乃至（Ｃ）は、重なり部の少なくとも一方の突合せ面が傾斜面である場合の模式断面図。(A) thru | or (C) is a schematic cross section when at least one butt | matching surface of an overlap part is an inclined surface.

符号の説明Explanation of symbols

１…携帯電話機、
３…第１筐体、
５…第２筐体、
５１…第１ケース部材、
５２…第２ケース部材、
５４…パッキン溝、
５５…パッキン、
５６Ａ,５６Ｂ…ネジ穴、
５７…ネジ、
５８…ボス部、
８３…通話用のスピーカ、
８３Ａ…スピーカ収納部
９…表示部、 1 ... mobile phone,
3 ... 1st housing | casing,
5 ... second housing,
51 ... 1st case member,
52. Second case member,
54 ... packing groove,
55 ... packing,
56A, 56B ... screw holes,
57 ... screw,
58 ... Boss
83 ... Speaker for call,
83A ... Speaker storage unit 9 ... Display unit,

Claims (6)

第１ケース部材と第２ケース部材とを有して構成される筐体と、
前記第１ケース部材と前記第２ケース部材との間に弾圧された状態で配設されるパッキンと、を有し、
前記筐体は、
前記パッキンよりも前記筐体の端部側に形成され、前記第１ケース部材と前記第２ケース部材とが互いに当接して重なり合う重なり部と、
前記パッキンと前記重なり部との間に形成され、第１ケース部材と前記第２ケース部材が前記重なり部において互いに当接された状態から、第１ケース部材と第２ケース部材との結合を締め付ける結合締付部と、を有し、
前記第１ケース部材と前記第２ケース部材の少なくとも一方は、前記結合締付部が前記結合を締め付けることによって前記重なり部で増大する負荷に起因して撓む可撓性材料で形成される
携帯電子機器。 A housing configured to include a first case member and a second case member;
A packing disposed in a state of being pressed between the first case member and the second case member,
The housing is
An overlapping portion that is formed closer to the end of the housing than the packing, and the first case member and the second case member are in contact with and overlap each other;
The coupling between the first case member and the second case member is tightened from the state where the first case member and the second case member are in contact with each other at the overlapping portion, formed between the packing and the overlapping portion. A coupling fastening portion, and
At least one of the first case member and the second case member is formed of a flexible material that is bent due to a load that is increased at the overlapping portion when the coupling tightening portion tightens the coupling. Electronics. 前記重なり部は、前記筐体の端部に形成される
請求項１に記載の携帯電子機器。 The portable electronic device according to claim 1, wherein the overlapping portion is formed at an end portion of the housing. 前記重なり部は、前記筐体における他の部位に比して肉厚に形成される
請求項１または請求項２に記載の携帯電子機器。 The portable electronic device according to claim 1, wherein the overlapping portion is formed thicker than other portions of the housing. 前記結合締付部が近接する前記重なり部の一部分が、該重なり部の他の部分に比して肉厚に形成される
請求項１乃至請求項３の何れか一項に記載の携帯電子機器。 The portable electronic device according to any one of claims 1 to 3, wherein a part of the overlapped part close to the coupling tightening part is formed thicker than another part of the overlapped part. . 前記筐体の一方の長さ方向における前記結合締付部よりも中央側であって、前記パッキンの近傍の領域には、部品が配設される
請求項１乃至請求項４の何れか一項に記載の携帯電子機器。 5. The component is disposed in a region closer to the center than the coupling tightening portion in one length direction of the casing and in the vicinity of the packing. 6. The portable electronic device as described in. 前記第１ケース部材と前記第２ケース部材の、前記重なり部に含まれる２つの面が、該２つの面の突合せ方向に対し異なる傾き角で形成されている
請求項１乃至請求項５の何れか一項に記載の携帯電子機器。 The two surfaces included in the overlapping portion of the first case member and the second case member are formed at different inclination angles with respect to the abutting direction of the two surfaces. A portable electronic device according to claim 1.

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