JP2005044919A

JP2005044919A - Cabinet

Info

Publication number: JP2005044919A
Application number: JP2003201578A
Authority: JP
Inventors: Hitoshi Umetsu; 均梅津
Original assignee: Fujitsu Telecom Networks Ltd
Current assignee: Fujitsu Telecom Networks Ltd
Priority date: 2003-07-25
Filing date: 2003-07-25
Publication date: 2005-02-17

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cabinet whose workability at the time of assembly and disassembly is high and strength at the time of usual use can be secured. <P>SOLUTION: The cabinet of an electronic unit is obtained by mutually adjusting a first cabinet 1 and a second cabinet 2 and assembling them. In the first cabinet, a restraint member 5 having a restraint pawl 6 and a first release projection 7 is erected inside. The second cabinet has a restraint projection 10 engaged with the restraint pawl and a movable piece 11 arranged in a corresponding position of the restraint member of the first cabinet. A second release projection 14 projected into the cabinet is formed on the inner face of the movable piece. At the time of assembling the first cabinet and the second cabinet, the restraint pawl is engaged with the restraint projection. The first release projection and the second release projection are arranged in a confronted state. The second release projection abuts on the first release projection by bending rise of the movable piece. The restraint pawl moves and the cabinet can be disassembled. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、例えば電子機器などに適用される筐体に関する。
【０００２】
【従来の技術】
従来、この種の電子機器では、重量、コスト、デザインなどの観点から、板金製筐体に代えて樹脂（モールド）製筐体が主流となっている。
電子機器に適用される筐体は、修理、保守を目的として分解できるように、上部カバーと下部カバーとをネジによって固定する構造が知られている。
【０００３】
電子機器の筐体の第１従来例を図９に示す。第１従来例の筐体は、長方形状の基底面部の周縁に側壁部を立設し、筐体内面側が開かれた箱体状にそれぞれ形成された第１筐体部１および第２筐体部２を、相互に合わせて組み立てる。第１筐体部１の四隅には雌ネジが刻まれた円ボス１８が立設され、第２筐体部２の四隅には円ボス１８を受ける穴付きの座１９が設けられている。そして、第２筐体部２の裏側から座を介してネジ２０を円ボス１８に螺合して、第１筐体部１および第２筐体部２を一体化する構造である（例えば、特許文献１参照）。
【０００４】
また、電子機器の筐体の第２従来例を図１０に示す。第２従来例の筐体は、第１従来例の筐体の２カ所の固定手段を、爪２１と爪受け２２による係止手段に置き換え、爪の係合とネジ止めで筐体を一体化するものである（例えば、特許文献２参照）。さらに、第３従来例として、第１筐体部および第２筐体部を爪と爪受けの係止手段のみで一体化することも一般に行われている（図示を省略する）。
【０００５】
【特許文献１】
特開平１０−２７００００号公報図１
【特許文献２】
実開平５−８９８３号公報
【０００６】
【発明が解決しようとする課題】
しかし、第１従来例の筐体は、ネジ止めで筐体を一体化するため十分な強度を有するが、組み立て時および分解時の作業性は悪化する。また分解後にネジを紛失した場合には再組み立てが困難となる。さらに、ネジ止め部の構造が筐体内のスペースを狭くするため、筐体のサイズが大型化する点でも改善の余地がある。
【０００７】
また、第２従来例の筐体は爪の係合とネジ止めを併用するため、第１従来例に比べて組み立て時および分解時の作業性は向上する。しかし、ネジを使用する点は第１従来例と変わらないため、作業性の向上などの点でなお改善の余地がある。
さらに、第３従来例の場合には、爪と爪受けの係合のみで筐体を一体化するため、爪の強度を大きくすると分解が困難となる。その一方で、爪の強度を弱くすると落下衝撃等によって筐体が簡単に分解してしまう。したがって、第３従来例の場合では、組み立て時および分解時の作業性と筐体の強度との両立が困難であった。
【０００８】
本発明は上記従来技術の課題を解決するためにされたものであり、その目的は、組み立て時および分解時の作業性が高く、かつ通常使用時の強度が確保できる筐体を提供することである。
【０００９】
【課題を解決するための手段】
請求項１に記載の発明は、側壁部と基底面部とを有し、筐体内面側が開かれた箱体状にそれぞれ形成された第１筐体部および第２筐体部を、それぞれの側壁部端面を相互に合わせて組み立てるとともに、その内部に実装部品の収容空間を備えてなる電子機器の筐体において、前記第１筐体部は、係止爪および第１解除突起を備えた係止部材が内部に立設されており、前記係止爪は前記係止部材の中間部に形成され、前記第１解除突起は、前記係止爪の基部から筐体内部に向けて突出するように形成され、前記第２筐体部は、前記係止爪と係合する係止突起と、前記第１筐体部の前記係止部材との対応位置に配置される可動片とを有しており、前記可動片は薄肉部を介して前記第２筐体部の基底面部に片持ち支持され、前記第２筐体部の基底面部にほぼ水平の状態から外側に向けて曲げ起こし可能に構成され、かつ前記可動片の内側面に筐体内部に向けて突出する第２解除突起が形成されており、前記第１筐体部および前記第２筐体部の組み立て時には、前記係止爪および係止突起が係合し、かつ前記第１解除突起および前記第２解除突起が対向状態で配置され、前記可動片の曲げ起しにより前記第２解除突起が前記第１解除突起と当接し、前記係止爪が移動して分解可能となることを特徴とする。
【００１０】
請求項２に記載の発明は、請求項１に記載の発明において、前記可動片および前記第２解除突起が、前記第２筐体部と一体に形成されていることを特徴とする。
請求項３に記載の発明は、請求項１または請求項２の発明において、前記第２解除突起は、前記可動片を筐体内部側に押し込んだ状態で前記第２筐体部の側壁部と当接する位置に形成されていることを特徴とする。
【００１１】
請求項４に記載の発明は、請求項１から請求項３の発明において、前記可動片に工具挿入穴を開口したことを特徴とする。
請求項５に記載の発明は、請求項１から請求項４の発明において、前記工具挿入穴は、前記第２筐体部の外側に開口部を有し、前記第２筐体部の内側では袋状に閉塞されていることを特徴とすることを特徴とする。
【００１２】
請求項６に記載の発明は、請求項１から請求項５の発明において、前記可動片の内側面に、所定以上の外側への曲げ起こしを拘束するストッパーを設けたことを特徴とする。
【００１３】
請求項７に記載の発明は、請求項１から請求項６の発明において、前記係止部材は、前記第１筐体部側の基端部から前記係止爪の形成位置の間に、前記係止部材の幅方向に延長する硬さ調節用スリットが形成されていることを特徴とする。
【００１４】
（作用）
請求項１の発明は、組み立て時には、第１筐体部に設けられた係止部材の係止爪を第２筐体部の係止突起に引っ掛けることで、第１筐体部および第２筐体部が一体化される。一体化された筐体は、第２筐体部の基底面部に設けられた可動片を曲げ起こすことで、可動片に設けられた第２解除突起が係止部材の第１解除突起を押圧し、係止部材の係止爪が係止突起から離間して分解可能となる。
【００１５】
請求項２の発明は、可動片および第２解除突起を第２筐体部に取り付ける必要がなく、主に組み立て時の作業性が向上する。
請求項３の発明は、可動片を筐体内部側に押し込んだ場合に、第２解除突起が第２筐体部の側壁部と当接し、可動片の筐体内部側への移動が規制される。
請求項４の発明は、可動片に工具を差し込むことで、分解時の曲げ起こしが容易となる。
【００１６】
請求項５の発明は、工具挿入穴が袋状に閉塞されているので、工具の先端が筐体内部の機器を傷つけることがなく、かつ可動片の強度も向上する。
請求項６の発明は、ストッパーにより所定以上の可動片の曲げ起こしが拘束されるため、分解時における可動片の破損が減少する。
請求項７の発明は、係止部材に硬さ調節用スリットを設けることで係止部材の変形量を調節でき、筐体および係止部材の材料変更に対応できる。
【００１７】
【発明の実施の形態】
以下、図面により本発明の実施の形態を詳細に説明する。
【００１８】
（実施形態の構成）
図１から図４は本発明の実施形態に係る筐体を示す図である。本実施形態の筐体は、樹脂製の上部筐体（第１筐体部）１と樹脂製の下部筐体（第２筐体部）２とから構成されている。
上部筐体１は、長方形状の基底面部３とこの基底面部３の周縁に立設する側壁部４とを有している。そして、上部筐体１の全体形状は、筐体内面側が開かれた箱体状に形成されている。また、上部筐体１の基底面部３には、筐体内面側に突出する係止部材５が四隅に立設されている。
【００１９】
係止部材５は上部筐体１と一体に形成されており、各係止部材５は係止爪６および第１解除突起７を有している。係止爪６は係止部材５の中間部に形成され、係止爪６の上下方向の位置は、上部筐体１の側壁部４端面の位置よりも下側に位置するように構成される。この係止爪６は、基底面部３とほぼ平行をなすように係止部材５から上部筐体１の外周側に向けて突出している。また第１解除突起７は係止部材５の先端部をなし、係止爪６の基部から筐体内部に向けて上下方向に突出するように形成されている。
【００２０】
なお、この係止部材５の上部筐体１の基端部から係止爪６の形成位置の間には、係止部材の幅方向に延長する硬さ調節用スリット５ａを設け、係止部材５の一部を薄肉化して係止部材５の変形を調節してもよい。特に、筐体の強度を向上させるために、上部筐体１および係止部材５を剛性の高い材質で一体成型した場合には、この硬さ調節用スリット５ａで対応することができる。
【００２１】
下部筐体２は、長方形状の基底面部８とこの基底面部８の周縁に立設する側壁部９とを有し、下部筐体２の全体形状は筐体内面側が開かれた箱体状に形成されている。上部筐体１および下部筐体２の基底面部３，８は大きさがほぼ等しく設定され、上部筐体１および下部筐体２を対向させた状態では、側壁部４，９の端面が合致するようになっている。また、下部筐体２の側壁部９の内周面には、係止爪６と係合する係止突起１０が形成されている。
【００２２】
また、上部筐体１の係止部材５の位置に対応して、下部筐体２の基底面部８の四隅には矩形の可動片１１がそれぞれ設けられている。下部筐体２の基底面部８において可動片１１と隣接する部分には切り欠き１２が形成されている。可動片１１は、下部筐体２の外周側に位置する薄肉部１３を介して下部筐体２の基底面部８に片持ち支持され、通常の状態において下部筐体２の基底面部８と同一面上に位置するように配置されている。そして、可動片１１は、薄肉部１３を支点として、基底面部８より外側に曲げ起こしできるようになっている。
【００２３】
可動片１１の内側面には第２解除突起１４が形成されている。第２解除突起１４は、可動片１１から筐体内部に向けて上下方向に突出するように形成されている。この第２解除突起１４の位置は、筐体の組み立て状態において、係止部材５の第１解除突起７と上下逆向きの状態で対向し、かつ第２解除突起１４が第１解除突起７よりも外周側に位置するように設定される。なお、可動片１１および第２解除突起１４は、金型による一体成形や溶着などの手段によって、下部筐体２と一体に形成されている。
【００２４】
ここで、第２解除突起１４は、可動片１１を筐体内部側に押し込んだ状態で、その先端部が下部筐体２の側壁部９と当接する長さに設定されている。すなわち、可動片１１を内側に押し込もうとする場合、この第２解除突起１４は下部筐体２の側壁部９と当接し、可動片１１の筐体内側への移動を阻害するようになっている。
【００２５】
また、可動片１１の内側面にはストッパー１５が設けられている。このストッパー１５は、基底面部８の切り欠き１２を乗り越えて下部筐体２の内周側に張り出しており、可動片１１を所定以上に外側へ曲げ起こす場合には、下部筐体２の基底面８とストッパー１５とが当接するように構成されている。さらに、分解時の曲げ起こしを容易とするために、可動片１１には、可動片１１を貫通する工具挿入穴１６が開口されている。
【００２６】
（実施形態の作用）
本実施形態の筐体は上記のように構成されており、以下その作用を説明する。本実施形態の筐体を組み立てる場合には、まず電子機器の基盤１７を中間において、上部筐体１および下部筐体２を、それぞれの側壁部４，９が対向する状態で両側に配置する。そして、上部筐体１および下部筐体２の側壁部４，９の端面を合わせ、基盤１７を筐体内に入れて上部筐体１を下部筐体２に嵌め込む。このとき、上部筐体１の係止爪６が下部筐体２の側壁部９に設けられた係止突起１０に係合し、上部筐体１および下部筐体２が一体化される。
【００２７】
なお、筐体が一体化された状態では、上部筐体１の第１解除突起７と下部筐体２の第２解除突起１４とは上下逆向きで対向し、かつ第２解除突起１４が第１解除突起７よりも外周側に位置している（図２参照）。
一方、本実施形態の筐体を分解する場合には、下部筐体２の可動片１１に設けられた工具挿入穴１６にドライバー等の工具２３を差し込んで、薄肉部１３を支点として可動片１１を外側に曲げ起こす。なお、可動片１１を大きく曲げ起こそうとする場合には、可動片１１に設けられたストッパー１５が下部筐体２の基底面部８と当接し、所定以上の可動片１１の曲げ起こしが阻害される。
【００２８】
可動片１１の曲げ起こしにより、可動片１１と一体に成形された第２解除突起１４は筐体内周側に傾動する。第２解除突起１４は内周側に対向配置された第１解除突起７と当接し、第１解除突起７を筐体内周側に押圧する。そして、かかる押圧力により上部筐体１の係止部材５が筐体内周側に傾動し、係止部材５の係止爪６が係止突起１０から離間して係合状態が解除される（図３参照）。以下、筐体に設けられた係合部の数だけ同様の作業を繰り返して、筐体を分解する。
【００２９】
（実施形態の補足事項）
以上、本発明を上記の実施形態によって説明してきたが、本発明の技術的範囲は上記実施形態に限定されるものではない。例えば、可動片１１に開口される工具挿入穴１６は上記実施形態の例に限定されず、図５から図８に示すように、下部筐体２の外側に向けて開口部を有し、下部筐体２の内側で袋状に閉塞された形状に形成してもよい。この場合には、工具挿入穴１６に工具を挿入した場合でも、工具の先端が筐体内部の基盤１７を傷つけることはない。
【００３０】
【発明の効果】
本発明では、係止爪と係止突起の係合により筐体を一体化するため、ネジを用いる必要がなく、組み立て時および分解時の作業性が向上する。しかも、円ボスなどのネジ止め用の内部構造が筐体内に不要となるため、装置の小型化を図ることができる。
【００３１】
特に本発明では、筐体に係止爪と係止突起の解除手段を設けて筐体の係合を解除するため、筐体を係止する爪の強度を大きくしても容易に分解することが可能となる。したがって、本発明は、従来のネジなしの筐体では困難であった、組み立て時および分解時の作業性と筐体の強度との両立を可能とする点で優れた効果を奏する。
【図面の簡単な説明】
【図１】本発明の実施形態に係る筐体の斜視図である。
【図２】本発明の実施形態に係る筐体の組み立て状態の部分断面図である。
【図３】本発明の実施形態に係る筐体の分解状態の部分断面図である。
【図４】本発明の実施形態に係る筐体の部分底面図である。
【図５】実施形態の変形例に係る筐体の組み立て状態の部分断面図である。
【図６】実施形態の変形例に係る筐体の分解状態の部分断面図である。
【図７】実施形態の変形例に係る筐体の部分底面図である。
【図８】実施形態の変形例に係る可動片の斜視図である。
【図９】電子機器の筐体の第１従来例を示す斜視図である。
【図１０】電子機器の筐体の第２従来例を示す斜視図である。
【符号の説明】
１上部筐体（第１筐体部）
２下部筐体（第２筐体部）
３上部筐体の基底面部
４上部筐体の側壁部
５係止部材
５ａ硬さ調節用スリット
６係止爪
７第１解除突起
８下部筐体の基底面部
９下部筐体の側壁部
１０係止突起
１１可動片
１２切り欠き
１３薄肉部
１４第２解除突起
１５ストッパー
１６工具挿入穴
１７基盤
１８円ボス
１９座
２０ネジ
２１爪
２２爪受け
２３工具（ドライバー）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a housing applied to, for example, an electronic device.
[0002]
[Prior art]
Conventionally, in this type of electronic device, a resin (mold) housing has been the mainstream instead of a sheet metal housing from the viewpoint of weight, cost, design, and the like.
A structure applied to an electronic device is known in which an upper cover and a lower cover are fixed with screws so that the casing can be disassembled for the purpose of repair and maintenance.
[0003]
FIG. 9 shows a first conventional example of a housing of an electronic device. The first conventional housing includes a first housing portion 1 and a second housing, each of which is formed in a box shape in which a side wall portion is erected on the periphery of a rectangular base bottom surface and the housing inner surface is opened. Assemble parts 2 together. Circular bosses 18 engraved with female screws are erected at the four corners of the first casing 1, and seats 19 with holes for receiving the circular bosses 18 are provided at the four corners of the second casing 2. Then, the screw 20 is screwed into the circular boss 18 through the seat from the back side of the second housing portion 2 to integrate the first housing portion 1 and the second housing portion 2 (for example, Patent Document 1).
[0004]
FIG. 10 shows a second conventional example of the casing of the electronic device. In the case of the second conventional example, the two fixing means of the case of the first conventional example are replaced with the locking means by the claw 21 and the claw receiver 22, and the case is integrated by engagement of the claw and screwing. (See, for example, Patent Document 2). Further, as a third conventional example, it is generally performed to integrate the first housing part and the second housing part only by the locking means of the claw and the claw receiver (not shown).
[0005]
[Patent Document 1]
Japanese Patent Laid-Open No. 10-270000
[Patent Document 2]
Japanese Utility Model Publication No. 5-8983 [0006]
[Problems to be solved by the invention]
However, the case of the first conventional example has sufficient strength to integrate the case by screwing, but the workability at the time of assembly and disassembly is deteriorated. Also, if the screw is lost after disassembly, reassembly becomes difficult. Furthermore, since the structure of the screwing portion narrows the space in the housing, there is room for improvement in that the size of the housing is increased.
[0007]
Further, since the case of the second conventional example uses both engagement of the claws and screwing, the workability at the time of assembly and disassembly is improved as compared with the first conventional example. However, since the use of screws is the same as in the first conventional example, there is still room for improvement in terms of improving workability.
Furthermore, in the case of the third conventional example, since the housing is integrated only by the engagement of the claw and the claw receiver, disassembly becomes difficult when the strength of the claw is increased. On the other hand, if the strength of the nail is weakened, the housing is easily disassembled due to a drop impact or the like. Therefore, in the case of the third conventional example, it is difficult to achieve both workability during assembly and disassembly and the strength of the housing.
[0008]
The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a housing that has high workability during assembly and disassembly and can ensure strength during normal use. is there.
[0009]
[Means for Solving the Problems]
The invention according to claim 1 includes a first housing portion and a second housing portion, each having a side wall portion and a basal surface portion, each formed in a box shape whose inner surface side is opened. In the case of an electronic device housing that is assembled with the end surfaces thereof aligned with each other and has a housing space for mounting components therein, the first housing portion includes a locking claw and a first release protrusion. A member is erected inside, the locking claw is formed at an intermediate portion of the locking member, and the first release protrusion protrudes from the base of the locking claw toward the inside of the housing. The second housing portion is formed, and has a locking protrusion that engages with the locking claw, and a movable piece that is disposed at a position corresponding to the locking member of the first housing portion. And the movable piece is cantilevered on the base surface portion of the second housing portion via the thin wall portion, and the base surface of the second housing portion. A second release protrusion is formed on the inner side surface of the movable piece so as to protrude toward the inside of the housing, and the first housing portion and At the time of assembling the second housing part, the locking claw and the locking projection are engaged, and the first release projection and the second release projection are arranged in an opposing state, and by bending the movable piece The second release protrusion comes into contact with the first release protrusion, and the locking claw moves and can be disassembled.
[0010]
According to a second aspect of the present invention, in the first aspect of the invention, the movable piece and the second release protrusion are formed integrally with the second casing portion.
According to a third aspect of the present invention, in the first or second aspect of the present invention, the second release protrusion is configured so that the movable piece is pushed into the housing and the side wall portion of the second housing portion. It is formed in the position which contacts.
[0011]
According to a fourth aspect of the present invention, in the first to third aspects of the present invention, a tool insertion hole is opened in the movable piece.
According to a fifth aspect of the present invention, in the first to fourth aspects of the invention, the tool insertion hole has an opening on the outside of the second housing portion, and on the inside of the second housing portion. It is characterized by being closed in a bag shape.
[0012]
According to a sixth aspect of the present invention, in the first to fifth aspects of the present invention, a stopper is provided on the inner side surface of the movable piece to restrain the bending up to a predetermined amount or more.
[0013]
According to a seventh aspect of the present invention, in the first to sixth aspects of the invention, the locking member is located between the base end portion on the first housing portion side and the position where the locking claws are formed. A slit for adjusting the hardness extending in the width direction of the locking member is formed.
[0014]
(Function)
According to the first aspect of the present invention, at the time of assembly, the first casing portion and the second casing are configured by hooking the locking claw of the locking member provided on the first casing portion to the locking projection of the second casing portion. The body part is integrated. The integrated housing bends and raises the movable piece provided on the base surface portion of the second housing portion, so that the second release protrusion provided on the movable piece presses the first release protrusion of the locking member. The locking claw of the locking member can be separated from the locking projection and disassembled.
[0015]
According to the second aspect of the present invention, it is not necessary to attach the movable piece and the second release protrusion to the second housing portion, and workability at the time of assembly is mainly improved.
According to a third aspect of the present invention, when the movable piece is pushed into the inside of the housing, the second release protrusion comes into contact with the side wall portion of the second housing portion, and the movement of the movable piece to the inside of the housing is restricted. The
According to the invention of claim 4, it is easy to raise the bending at the time of disassembly by inserting the tool into the movable piece.
[0016]
In the invention of claim 5, since the tool insertion hole is closed in a bag shape, the tip of the tool does not damage the equipment inside the casing, and the strength of the movable piece is improved.
According to the sixth aspect of the present invention, the bending of the movable piece more than a predetermined amount is restrained by the stopper, so that the breakage of the movable piece during disassembly is reduced.
According to the seventh aspect of the present invention, the deformation amount of the locking member can be adjusted by providing the locking member with a hardness adjusting slit, and the material of the housing and the locking member can be changed.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0018]
(Configuration of the embodiment)
1 to 4 are views showing a housing according to an embodiment of the present invention. The housing of the present embodiment includes a resin upper housing (first housing portion) 1 and a resin lower housing (second housing portion) 2.
The upper housing 1 has a rectangular base surface portion 3 and a side wall portion 4 standing on the periphery of the base surface portion 3. The overall shape of the upper housing 1 is formed in a box shape with the housing inner surface opened. Further, on the base bottom surface portion 3 of the upper housing 1, locking members 5 projecting toward the inner surface of the housing are erected at the four corners.
[0019]
The locking member 5 is formed integrally with the upper housing 1, and each locking member 5 has a locking claw 6 and a first release protrusion 7. The locking claw 6 is formed at an intermediate portion of the locking member 5, and the vertical position of the locking claw 6 is configured to be located below the position of the end surface of the side wall 4 of the upper housing 1. . The locking claw 6 protrudes from the locking member 5 toward the outer peripheral side of the upper housing 1 so as to be substantially parallel to the base surface portion 3. The first release protrusion 7 forms the tip of the locking member 5 and is formed so as to protrude in the vertical direction from the base of the locking claw 6 toward the inside of the housing.
[0020]
In addition, a slit 5a for adjusting the hardness extending in the width direction of the locking member is provided between the base end portion of the upper housing 1 of the locking member 5 and the position where the locking claw 6 is formed. The deformation of the locking member 5 may be adjusted by thinning part of 5. In particular, when the upper housing 1 and the locking member 5 are integrally formed of a highly rigid material in order to improve the strength of the housing, this hardness adjusting slit 5a can be used.
[0021]
The lower housing 2 has a rectangular base surface portion 8 and a side wall portion 9 erected on the periphery of the base surface portion 8, and the entire shape of the lower housing 2 is a box shape with the inner surface of the housing opened. Is formed. The base bottom surface portions 3 and 8 of the upper housing 1 and the lower housing 2 are set to be substantially equal in size, and the end surfaces of the side wall portions 4 and 9 match in a state where the upper housing 1 and the lower housing 2 face each other. It is like that. A locking projection 10 that engages with the locking claw 6 is formed on the inner peripheral surface of the side wall 9 of the lower housing 2.
[0022]
Corresponding to the position of the locking member 5 of the upper housing 1, rectangular movable pieces 11 are respectively provided at the four corners of the base surface portion 8 of the lower housing 2. A notch 12 is formed in a portion adjacent to the movable piece 11 in the base bottom surface portion 8 of the lower housing 2. The movable piece 11 is cantilevered on the base surface portion 8 of the lower housing 2 via a thin portion 13 located on the outer peripheral side of the lower housing 2 and is flush with the base surface portion 8 of the lower housing 2 in a normal state. It is arranged to be located on the top. The movable piece 11 can be bent and raised outside the base surface portion 8 with the thin portion 13 as a fulcrum.
[0023]
A second release protrusion 14 is formed on the inner surface of the movable piece 11. The second release protrusion 14 is formed so as to protrude vertically from the movable piece 11 toward the inside of the housing. The position of the second release protrusion 14 is opposite to the first release protrusion 7 of the locking member 5 in the upside down state in the assembled state of the housing, and the second release protrusion 14 is more than the first release protrusion 7. Is also set to be located on the outer peripheral side. The movable piece 11 and the second release protrusion 14 are integrally formed with the lower housing 2 by means such as integral molding or welding with a mold.
[0024]
Here, the second release protrusion 14 is set to a length such that the distal end of the second release protrusion 14 contacts the side wall 9 of the lower housing 2 in a state where the movable piece 11 is pushed into the inside of the housing. In other words, when the movable piece 11 is to be pushed inward, the second release protrusion 14 comes into contact with the side wall portion 9 of the lower housing 2 and inhibits the movement of the movable piece 11 to the inside of the housing. ing.
[0025]
A stopper 15 is provided on the inner surface of the movable piece 11. The stopper 15 extends over the notch 12 of the base surface 8 and protrudes to the inner peripheral side of the lower housing 2. When the movable piece 11 is bent outward beyond a predetermined amount, the base 15 of the lower housing 2 is extended. 8 and the stopper 15 are configured to contact each other. Further, in order to facilitate bending at the time of disassembly, the movable piece 11 is provided with a tool insertion hole 16 penetrating the movable piece 11.
[0026]
(Operation of the embodiment)
The housing of the present embodiment is configured as described above, and the operation thereof will be described below. When assembling the housing of this embodiment, first, the base 17 of the electronic device is placed in the middle, and the upper housing 1 and the lower housing 2 are arranged on both sides with the side wall portions 4 and 9 facing each other. Then, the end surfaces of the side wall portions 4 and 9 of the upper housing 1 and the lower housing 2 are aligned, the base 17 is placed in the housing, and the upper housing 1 is fitted into the lower housing 2. At this time, the locking claw 6 of the upper housing 1 is engaged with the locking protrusion 10 provided on the side wall portion 9 of the lower housing 2 so that the upper housing 1 and the lower housing 2 are integrated.
[0027]
In the state where the housing is integrated, the first release protrusion 7 of the upper housing 1 and the second release protrusion 14 of the lower housing 2 face each other upside down, and the second release protrusion 14 is the first release protrusion 14. 1 It is located in the outer peripheral side rather than the cancellation | release protrusion 7 (refer FIG. 2).
On the other hand, when disassembling the housing of this embodiment, a tool 23 such as a screwdriver is inserted into the tool insertion hole 16 provided in the movable piece 11 of the lower housing 2, and the movable piece 11 is used with the thin portion 13 as a fulcrum. Bend outward. When the movable piece 11 is to be bent largely, the stopper 15 provided on the movable piece 11 comes into contact with the base surface portion 8 of the lower housing 2 and the bending of the movable piece 11 beyond a predetermined level is hindered. The
[0028]
Due to the bending of the movable piece 11, the second release protrusion 14 formed integrally with the movable piece 11 tilts toward the inner peripheral side of the housing. The second release protrusion 14 abuts on the first release protrusion 7 disposed to face the inner peripheral side, and presses the first release protrusion 7 toward the inner peripheral side of the housing. Then, the locking member 5 of the upper housing 1 is tilted toward the inner peripheral side of the housing by the pressing force, and the locking claw 6 of the locking member 5 is separated from the locking projection 10 to release the engaged state ( (See FIG. 3). Thereafter, the same operation is repeated as many times as the number of engaging portions provided in the casing, and the casing is disassembled.
[0029]
(Supplementary items of the embodiment)
As mentioned above, although this invention has been demonstrated by said embodiment, the technical scope of this invention is not limited to the said embodiment. For example, the tool insertion hole 16 opened in the movable piece 11 is not limited to the example of the above embodiment, and has an opening toward the outside of the lower housing 2 as shown in FIGS. You may form in the shape obstruct | occluded in the bag shape inside the housing | casing 2. FIG. In this case, even when a tool is inserted into the tool insertion hole 16, the tip of the tool does not damage the base 17 inside the housing.
[0030]
【The invention's effect】
In the present invention, since the housing is integrated by engagement of the locking claw and the locking projection, it is not necessary to use a screw, and workability at the time of assembly and disassembly is improved. In addition, since an internal structure for screwing such as a circular boss is not required in the casing, the apparatus can be reduced in size.
[0031]
In particular, in the present invention, since the locking claw and the locking projection releasing means are provided in the housing to release the engagement of the housing, it can be easily disassembled even if the strength of the claw for locking the housing is increased. Is possible. Therefore, the present invention has an excellent effect in that it is possible to achieve both the workability at the time of assembly and disassembly and the strength of the housing, which is difficult with a conventional housing without screws.
[Brief description of the drawings]
FIG. 1 is a perspective view of a housing according to an embodiment of the present invention.
FIG. 2 is a partial cross-sectional view of an assembled state of a housing according to the embodiment of the present invention.
FIG. 3 is a partial cross-sectional view of a disassembled state of the housing according to the embodiment of the present invention.
FIG. 4 is a partial bottom view of the housing according to the embodiment of the present invention.
FIG. 5 is a partial cross-sectional view of an assembled state of a housing according to a modified example of the embodiment.
FIG. 6 is a partial cross-sectional view of a disassembled state of a housing according to a modified example of the embodiment.
FIG. 7 is a partial bottom view of a housing according to a modified example of the embodiment.
FIG. 8 is a perspective view of a movable piece according to a modification of the embodiment.
FIG. 9 is a perspective view showing a first conventional example of a housing of an electronic device.
FIG. 10 is a perspective view showing a second conventional example of a casing of an electronic device.
[Explanation of symbols]
1 Upper housing (first housing)
2 Lower housing (second housing)
3 Base surface portion 4 of upper housing 4 Side wall portion 5 of upper housing 5 Locking member 5a Hardness adjusting slit 6 Locking claw 7 First release projection 8 Base surface portion 9 of lower housing Side wall portion 10 of lower housing Protrusion 11 Movable piece 12 Notch 13 Thin part 14 Second release protrusion 15 Stopper 16 Tool insertion hole 17 Base 18 Circular boss 19 Seat 20 Screw 21 Claw 22 Claw receiver 23 Tool (driver)

Claims

側壁部と基底面部とを有し、筐体内面側が開かれた箱体状にそれぞれ形成された第１筐体部および第２筐体部を、それぞれの側壁部端面を相互に合わせて組み立てるとともに、その内部に実装部品の収容空間を備えてなる電子機器の筐体において、
前記第１筐体部は、係止爪および第１解除突起を備えた係止部材が内部に立設されており、前記係止爪は前記係止部材の中間部に形成され、前記第１解除突起は、前記係止爪の基部から筐体内部に向けて突出するように形成され、
前記第２筐体部は、前記係止爪と係合する係止突起と、前記第１筐体部の前記係止部材との対応位置に配置される可動片とを有しており、
前記可動片は薄肉部を介して前記第２筐体部の基底面部に片持ち支持され、前記第２筐体部の基底面部にほぼ水平の状態から外側に向けて曲げ起こし可能に構成され、かつ前記可動片の内側面に筐体内部に向けて突出する第２解除突起が形成されており、
前記第１筐体部および前記第２筐体部の組み立て時には、前記係止爪および係止突起が係合し、かつ前記第１解除突起および前記第２解除突起が対向状態で配置され、前記可動片の曲げ起しにより前記第２解除突起が前記第１解除突起と当接し、前記係止爪が移動して分解可能となることを特徴とする筐体。Assembling a first housing part and a second housing part, each having a side wall part and a base surface part, each formed in a box shape with the inner side of the housing opened, with the side wall part end faces aligned with each other In the case of an electronic device having a housing space for mounting components inside,
The first casing portion has a locking member provided with a locking claw and a first release protrusion, and the locking claw is formed in an intermediate portion of the locking member, The release protrusion is formed so as to protrude from the base of the locking claw toward the inside of the housing,
The second housing portion includes a locking protrusion that engages with the locking claw, and a movable piece that is disposed at a position corresponding to the locking member of the first housing portion,
The movable piece is cantilevered and supported by the base bottom part of the second housing part via a thin part, and is configured to be bent and raised outward from a substantially horizontal state to the base bottom part of the second housing part, And the 2nd cancellation | release protrusion which protrudes toward the inside of a housing | casing is formed in the inner surface of the said movable piece,
When the first housing part and the second housing part are assembled, the locking claw and the locking protrusion are engaged, and the first releasing protrusion and the second releasing protrusion are arranged in an opposing state, The casing, wherein the second release projection comes into contact with the first release projection by bending of the movable piece, and the locking claw moves and can be disassembled.

前記可動片および前記第２解除突起が、前記第２筐体部と一体に形成されていることを特徴とする請求項１に記載の筐体。The casing according to claim 1, wherein the movable piece and the second release protrusion are formed integrally with the second casing portion.

前記第２解除突起は、前記可動片を筐体内部側に押し込んだ状態で前記第２筐体部の側壁部と当接する位置に形成されていることを特徴とする請求項１または請求項２に記載の筐体。The said 2nd cancellation | release protrusion is formed in the position contact | abutted with the side wall part of the said 2nd housing | casing part in the state which pushed in the said movable piece inside the housing | casing. The housing described in 1.

前記可動片に工具挿入穴を開口したことを特徴とする請求項１から請求項３のいずれか１項に記載の筐体。The case according to any one of claims 1 to 3, wherein a tool insertion hole is opened in the movable piece.

前記工具挿入穴は、前記第２筐体部の外側に開口部を有し、前記第２筐体部の内側では袋状に閉塞されていることを特徴とすることを特徴とする請求項１から請求項４のいずれか１項に記載の筐体。The tool insertion hole has an opening on the outer side of the second housing part, and is closed in a bag shape on the inner side of the second housing part. The housing | casing of any one of Claim 4.

前記可動片の内側面に、所定以上の外側への曲げ起こしを拘束するストッパーを設けたことを特徴とする請求項１から請求項５のいずれか１項に記載の筐体。The casing according to any one of claims 1 to 5, wherein a stopper that restrains bending up to a predetermined amount or more is provided on an inner surface of the movable piece.

前記係止部材は、前記第１筐体部側の基端部から前記係止爪の形成位置の間に、前記係止部材の幅方向に延長する硬さ調節用スリットが形成されていることを特徴とする請求項１から請求項６のいずれか１項に記載の筐体。The locking member is formed with a hardness adjusting slit extending in a width direction of the locking member between a base end portion on the first housing portion side and a position where the locking claw is formed. The housing according to any one of claims 1 to 6, wherein: