JP6121509B2 - Housing structure of electrical equipment - Google Patents

Housing structure of electrical equipment Download PDF

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JP6121509B2
JP6121509B2 JP2015230557A JP2015230557A JP6121509B2 JP 6121509 B2 JP6121509 B2 JP 6121509B2 JP 2015230557 A JP2015230557 A JP 2015230557A JP 2015230557 A JP2015230557 A JP 2015230557A JP 6121509 B2 JP6121509 B2 JP 6121509B2
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opening
removable piece
housing structure
housing
electric device
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JP2016058747A (en
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泰正 上野
泰正 上野
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New Cosmos Electric Co Ltd
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Description

本発明は、例えば壁面に設置される防災用又は防犯用の電気機器の筺体構造に関する。   The present invention relates to a housing structure of an electrical device for disaster prevention or crime prevention installed on a wall surface, for example.

例えば特許文献１には、電気機器の筺体に形成した開口部に、当該開口部を覆うように切り取り除去が可能な除去可能片が設けられた構造が記載してある。当該除去可能片は、開口部の端縁から突出した薄肉の連結部によって開口部に連結している。このような構成により、当該除去可能片を除去しない場合には開口部を閉塞した状態とすることができ、必要な場合に当該除去可能片を除去すれば、当該開口部を開口させて所望の部材を開口部から出現させることができる。   For example, Patent Document 1 describes a structure in which a removable piece that can be cut off and removed so as to cover the opening is formed in the opening formed in the housing of the electric device. The removable piece is connected to the opening by a thin connecting part protruding from the edge of the opening. With such a configuration, when the removable piece is not removed, the opening can be closed, and when the removable piece is removed when necessary, the opening is opened and the desired piece is opened. The member can emerge from the opening.

特開平１１−２３８９７６号公報Japanese Patent Laid-Open No. 11-238976

特許文献１に記載の筺体構造では、除去可能片は開口部に平面的に取り付けられていたため、比較的容易に複数の連結部を切断して除去可能片を除去することが可能であった。
そのため、不意に他物が除去可能片と接触することで、当該連結部のいくつかが破壊されて、除去可能片が除去され易くなるという問題点があった。 In the case structure described in Patent Document 1, since the removable piece is attached to the opening in a planar manner, it is possible to remove the removable piece by cutting a plurality of connecting portions relatively easily.
For this reason, there is a problem in that some of the connecting portions are destroyed due to unexpected contact of the other object with the removable piece, and the removable piece is easily removed.

薄肉の連結部を厚肉にすれば、不意に他物が除去可能片と接触したとしても、当該連結部は破壊され難くなるが、この場合、厚肉の連結部を破壊するのに、より多くの労力を要することとなり、除去可能片を除去し難くなる。   If the thin-walled connecting portion is made thick, even if other objects suddenly come into contact with the removable piece, the connecting portion will be difficult to be destroyed, but in this case, to destroy the thick-walled connecting portion, A lot of labor is required, and it becomes difficult to remove the removable piece.

従って、本発明の目的は、不意に除去可能片が除去されるのを未然に防止でき、かつ、簡便に除去可能片を除去できる電気機器の筺体構造を提供することにある。   Accordingly, an object of the present invention is to provide a housing structure of an electric device that can prevent the removable piece from being removed unexpectedly and can easily remove the removable piece.

上記目的を達成するための本発明に係る電気機器の筺体構造は、電気機器の外形を形成する筺体に形成された開口部と、当該開口部の一部を覆い、前記開口部の端縁に対して破断可能な連結部によって連結される除去可能片と、を備えた電気機器の筺体構造であって、その第一特徴構成は、前記除去可能片は、前記開口部が形成された前記筺体の構成面に沿う第一面、および、前記第一面に対して交差してそれぞれが対向する二つの第二面を備え、前記第一面に、前記除去可能片を回転操作によって除去する操作具によって把持される操作突起を備え、少なくとも前記第二面における前記開口部の端縁側に前記連結部を備え、前記連結部は、上面視で、前記端縁および前記第二面に対して角度を持たせて配設した点にある。   In order to achieve the above object, a housing structure of an electrical device according to the present invention includes an opening formed in a housing that forms the outer shape of the electrical device, a portion of the opening, and an edge of the opening. And a removable structure connected to each other by a breakable connecting portion. The first feature of the structure is that the removable piece is formed with the opening. An operation of removing the removable piece on the first surface by a rotating operation. An operation projection to be gripped by a tool, and the connection portion is provided at least on the edge side of the opening in the second surface, and the connection portion is angled with respect to the edge and the second surface in a top view. The point is that it is provided with a.

本構成によれば、除去可能片を第一面および第二面によってコの字状の態様に形成でき、第一面および第二面に囲まれた空間に操作突起を備えることができる。当該除去可能片を除去するには、ラジオペンチなどの操作具によって操作突起を把持し、この状態で当該操作具を回転操作する。これによって連結部が破断され、除去可能片を筺体から除去することができる。   According to this configuration, the removable piece can be formed in a U shape by the first surface and the second surface, and the operation protrusion can be provided in a space surrounded by the first surface and the second surface. In order to remove the removable piece, the operation protrusion is gripped by an operation tool such as a radio pliers, and the operation tool is rotated in this state. Thereby, a connection part is fractured | ruptured and a removable piece can be removed from a housing.

本構成において除去可能片を除去するためには、操作具で操作突起を把持して除去可能片を回転させる必要がある。そのため、不意に他物が除去可能片と接触したとしても除去可能片は回転操作されないため、当該連結部は破壊され難い。よって、本構成であれば、不意に除去可能片が除去されるのを未然に防止できる。   In order to remove the removable piece in this configuration, it is necessary to rotate the removable piece by gripping the operation protrusion with the operation tool. For this reason, even if another object unexpectedly comes into contact with the removable piece, the removable piece is not rotated, so that the connecting portion is hardly broken. Therefore, with this configuration, it is possible to prevent the removable pieces from being removed unexpectedly.

また、除去可能片の除去は、単に操作突起を把持した操作具を回転操作させるだけであるため、簡便に除去可能片を除去できる。   In addition, the removal of the removable piece can be simply removed by simply rotating the operation tool holding the operation protrusion.

また、本構成のように連結部の設置角度を規定することで、操作者に操作具を回転させる方向を意識付けすることができるため、除去可能片の回転操作をスムーズに行うことができる。   Further, by defining the installation angle of the connecting portion as in this configuration, the operator can be made aware of the direction in which the operating tool is rotated, so that the removable operation of the removable piece can be performed smoothly.

本発明に係る電気機器の筺体構造の第二特徴構成は、前記回転操作が前記第一面に交差する軸芯に対して行なわれるように、前記操作突起を上面視で矩形状に形成した点にある。   The second characteristic configuration of the housing structure of the electrical equipment according to the present invention is that the operation protrusion is formed in a rectangular shape in a top view so that the rotation operation is performed on an axis that intersects the first surface. It is in.

本構成によれば、除去可能片を除去する際には、例えば操作具が第一面に直交するような姿勢で操作具によって操作突起を把持し、この状態で操作具を回転操作すればよいため、簡便な操作で除去可能片を除去することができる。
また、操作突起を上面視で矩形状に形成してあると、操作具によって操作突起を把持し易くなるため、当該回転操作を容易に行なうことができる。
本発明に係る電気機器の筺体構造の第三特徴構成は、前記操作突起を前記第二面にわたって延びる矩形状に備えた点にある。
本構成によれば、操作具によって操作突起をより把持し易くなるため、当該回転操作をより容易に行なうことができる。
本発明に係る電気機器の筺体構造の第四特徴構成は、前記操作突起の延びる方向とは異なる方向に、前記操作具を差し込むことが可能な空間を備えた点にある。
本構成によれば、操作具を容易に当該空間に差し込んで操作突起を把持し易くなるため、当該回転操作を容易に行なうことができる。 According to this configuration, when removing the removable piece, for example, the operating tool may be gripped by the operating tool in a posture such that the operating tool is orthogonal to the first surface, and the operating tool may be rotated in this state. Therefore, the removable piece can be removed by a simple operation.
Further, when the operation protrusion is formed in a rectangular shape in a top view, the operation protrusion can be easily grasped by the operation tool, so that the rotation operation can be easily performed.
A third characteristic configuration of the housing structure of the electric device according to the present invention is that the operation protrusion is provided in a rectangular shape extending over the second surface.
According to this configuration, the operation protrusion can be more easily gripped by the operation tool, so that the rotation operation can be performed more easily.
A fourth characteristic configuration of the housing structure of the electric device according to the present invention is that a space is provided in which the operation tool can be inserted in a direction different from a direction in which the operation protrusion extends.
According to this configuration, since the operation tool can be easily inserted into the space and the operation protrusion can be easily grasped, the rotation operation can be easily performed.

電気機器の概要を示す斜視図である。It is a perspective view which shows the outline | summary of an electric equipment. 電気機器の分解斜視図である。It is a disassembled perspective view of an electric equipment. 電気機器の分解斜視図である。It is a disassembled perspective view of an electric equipment. 筺体の要部拡大図である。It is a principal part enlarged view of a housing. 操作具によって除去可能片を除去操作するときの概要を示した図The figure which showed the outline at the time of removing operation of a removable piece with an operation tool 除去可能片を除去した後に信号線を電気機器の背面側に導出したときの概要を示した図The figure which showed the outline when the signal line was led out to the back side of the electric equipment after removing the removable piece 電気機器および取付手段の概要を示す斜視図である。It is a perspective view which shows the outline | summary of an electric equipment and an attachment means. 電気機器および取付手段を係合させたときの概要を示す斜視図である。It is a perspective view which shows the outline | summary when an electric equipment and an attachment means are engaged.

以下、本発明の実施形態を図面に基づいて説明する。
本発明は、例えば壁面に設置される防災用又は防犯用の電気機器の筺体構造に関するものである。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The present invention relates to a housing structure of an electrical device for disaster prevention or crime prevention installed on a wall surface, for example.

電気機器は、壁面に設置する態様であればどのような機器であってもよい。当該壁面に設置する電機機器としては、例えば防災用又は防犯用の警報器が挙げられる。本実施形態では、電気機器Ｘとして、可燃性ガス（ＬＰガス）の漏洩を検知するガス警報器を屋内の壁面に設置する態様について説明する。当該電気機器の形状は特に限定されるものではないが、本実施形態では上面視で矩形状であり、厚板状（例えば１２×７×２．５ｃｍ）の形状を呈するものを例示する。   The electric device may be any device as long as it is installed on the wall surface. As an electric equipment installed in the said wall surface, the alarm device for disaster prevention or crime prevention is mentioned, for example. This embodiment demonstrates the aspect which installs the gas alarm which detects the leak of combustible gas (LP gas) as the electric equipment X on the indoor wall surface. The shape of the electric device is not particularly limited, but in the present embodiment, a rectangular shape in a top view and a thick plate shape (for example, 12 × 7 × 2.5 cm) is illustrated.

図１〜３に示したように、電気機器Ｘは、電気機器Ｘの外形を形成する筺体１０に封止体２０を組み付けて形成してある。   As shown in FIGS. 1 to 3, the electric device X is formed by assembling the sealing body 20 to the housing 10 that forms the outer shape of the electric device X.

図４に示したように、当該電気機器Ｘは、電気機器Ｘの外形を形成する筺体１０に形成された開口部１３と、当該開口部１３の一部を覆い、開口部１３の端縁１３ａに対して破断可能な連結部１４によって連結される除去可能片１５と、を備える。   As shown in FIG. 4, the electric device X covers the opening 13 formed in the housing 10 that forms the outer shape of the electric device X, and a part of the opening 13, and the edge 13 a of the opening 13. And a removable piece 15 connected by a connecting part 14 that can be broken.

当該除去可能片１５は、開口部１３が形成された筺体１０の構成面に沿う第一面１５ａ、および、第一面１５ａに対して交差してそれぞれが対向する二つの第二面１５ｂを備える。また、当該第一面１５ａに、除去可能片１５を回転操作によって除去する操作具Ｙによって把持される操作突起１５ｃを備え、少なくとも第二面１５ｂにおける開口部１３の端縁側に連結部１４を備える。   The removable piece 15 includes a first surface 15a along the structural surface of the housing 10 in which the opening 13 is formed, and two second surfaces 15b that intersect the first surface 15a and face each other. . In addition, the first surface 15a is provided with an operation projection 15c that is gripped by the operation tool Y that removes the removable piece 15 by a rotation operation, and the connection portion 14 is provided at least on the edge side of the opening 13 in the second surface 15b. .

筺体１０は回路基板３０を収容するものであり、底面１１と側面１２とを一体に形成して構成されている。即ち、底面１１および側面１２とで囲まれた空間に回路基板３０が収容される。側面１２の端部（封止体２０の側）には、封止体２０と重ね配置される本体周縁端部１２ａが形成してある。
本実施形態では、筺体１０に封止体２０を組み付けた際、本体周縁端部１２ａと封止端部２１とが重ね配置されたときに、本体周縁端部１２ａが内側に位置する場合について説明する。
筺体１０および封止体２０は、例えば公知の樹脂製とすることができるが、これに限られるものではない。 The housing 10 accommodates the circuit board 30 and is configured by integrally forming the bottom surface 11 and the side surface 12. That is, the circuit board 30 is accommodated in a space surrounded by the bottom surface 11 and the side surface 12. At the end of the side surface 12 (on the side of the sealing body 20), a main body peripheral edge portion 12 a that is disposed so as to overlap the sealing body 20 is formed.
In the present embodiment, when the sealing body 20 is assembled to the housing 10, when the main body peripheral edge 12 a and the sealing end 21 are overlaid, the case where the main peripheral edge 12 a is positioned on the inner side will be described. To do.
The casing 10 and the sealing body 20 can be made of, for example, a known resin, but are not limited thereto.

封止体２０は、筺体１０の少なくとも一部を覆う部材である。本実施形態では、封止体２０は、筺体１０の全体を覆う第一封止体２０ａ、および、第一封止体２０ａの封止体開口部２２を覆う第二封止体２０ｂを有する。
第一封止体２０ａには、スイッチ４０を露出させるスイッチ開口部２３、警報音を外部に伝えるスピーカ開口部２４が形成してある。 The sealing body 20 is a member that covers at least a part of the housing 10. In this embodiment, the sealing body 20 has the 1st sealing body 20a which covers the whole housing 10, and the 2nd sealing body 20b which covers the sealing body opening part 22 of the 1st sealing body 20a.
The first sealing body 20a is formed with a switch opening 23 for exposing the switch 40 and a speaker opening 24 for transmitting an alarm sound to the outside.

回路基板３０には、例えばガス検知部３１、報知部３２、端子台３３などの部品が配設してある。回路基板３０には、電源コード３４が接続してある。また、回路基板３０には、基板開口部３５が形成してある。   Components such as a gas detection unit 31, a notification unit 32, and a terminal block 33 are disposed on the circuit board 30, for example. A power cord 34 is connected to the circuit board 30. The circuit board 30 has a substrate opening 35 formed therein.

端子台３３は、外部からの信号線の接続端子を接続できる態様であればよく、第一封止体２０ａの開口部２２から露出するように回路基板３０に配設してある。外部からの接続端子を端子台３３に接続する場合には、例えば開口部２２を覆う第二封止体２０ｂを下方にスライド移動して端子台３３を露出させればよい。   The terminal block 33 may be in any form that can connect a connection terminal of an external signal line, and is disposed on the circuit board 30 so as to be exposed from the opening 22 of the first sealing body 20a. When connecting an external connection terminal to the terminal block 33, for example, the second sealing body 20 b covering the opening 22 may be slid downward to expose the terminal block 33.

除去可能片１５は、破断可能な連結部１４によって開口部１３の端縁１３ａと連結され、筺体１０に形成された開口部１３の一部を覆うように配設される。本実施形態では、連結部１４は、それぞれの第二面１５ｂにおける開口部１３の端縁１３ａ側に二つずつ、第一面１５ａにおける開口部１３の端縁１３ａ側に一つ、配設してある場合について説明するが、この態様に限られるものではない。   The removable piece 15 is connected to the edge 13a of the opening 13 by a breakable connecting portion 14, and is disposed so as to cover a part of the opening 13 formed in the housing 10. In the present embodiment, two connecting portions 14 are disposed on the side of the edge 13a of the opening 13 on the second surface 15b and one on the side of the edge 13a of the opening 13 on the first surface 15a. However, the present invention is not limited to this mode.

除去可能片１５は第一面１５ａおよび第二面１５ｂによってコの字状の態様に形成でき、第一面１５ａおよび第二面１５ｂに囲まれた空間に操作突起１５ｃを備えることができる。当該除去可能片１５を除去するには、ラジオペンチなどの操作具Ｙによって操作突起１５ｃを把持し（図５）、この状態で当該操作具Ｙを左回りに回転操作する。これによって全ての連結部１４を破断することができるため、除去可能片１５を筺体１０から除去することができる。
操作具Ｙは、ラジオペンチに限らず、操作突起１５ｃを把持できるものであればよい。 The removable piece 15 can be formed in a U-shape by the first surface 15a and the second surface 15b, and can include an operation protrusion 15c in a space surrounded by the first surface 15a and the second surface 15b. In order to remove the removable piece 15, the operation projection 15c is gripped by the operation tool Y such as radio pliers (FIG. 5), and the operation tool Y is rotated counterclockwise in this state. As a result, all the connecting portions 14 can be broken, so that the removable piece 15 can be removed from the housing 10.
The operation tool Y is not limited to radio pliers, and may be any tool that can grip the operation protrusion 15c.

本構成において除去可能片１５を除去するためには、操作具Ｙで操作突起１５ｃを把持して除去可能片１５を回転させる必要がある。そのため、不意に他物が除去可能片１５と接触したとしても、除去可能片１５は回転操作されないため、当該連結部１４は破壊され難い。よって、本構成であれば、不意に除去可能片１５が除去されるのを未然に防止できる。   In order to remove the removable piece 15 in this configuration, it is necessary to grip the operation projection 15c with the operation tool Y and rotate the removable piece 15. Therefore, even if another object unexpectedly comes into contact with the removable piece 15, the removable piece 15 is not rotated, and thus the connecting portion 14 is not easily broken. Therefore, with this configuration, it is possible to prevent the removable piece 15 from being removed unexpectedly.

本実施形態では、前記回転操作が第一面１５ａに交差する軸芯Ｚに対して行なわれるように、操作突起１５ｃを上面視で矩形状に形成してある（図４）。   In the present embodiment, the operation projection 15c is formed in a rectangular shape in a top view so that the rotation operation is performed on the axis Z intersecting the first surface 15a (FIG. 4).

これにより、除去可能片１５を除去する際には、例えば操作具Ｙが第一面１５ａに直交するような姿勢で操作具Ｙによって操作突起１５ｃを把持し、この状態で操作具Ｙを回転操作すればよいため、簡便な操作で除去可能片１５を除去することができる。
また、操作突起１５ｃを上面視で矩形状に形成してあると、操作具Ｙによって操作突起１５ｃを把持し易くなるため、当該回転操作を容易に行なうことができる。 Thereby, when removing the removable piece 15, for example, the operating tool Y is gripped by the operating tool Y in a posture such that the operating tool Y is orthogonal to the first surface 15a, and the operating tool Y is rotated in this state. Therefore, the removable piece 15 can be removed by a simple operation.
In addition, if the operation protrusion 15c is formed in a rectangular shape when viewed from above, the operation protrusion 15c can be easily grasped by the operation tool Y, and thus the rotation operation can be easily performed.

連結部１４は、上面視で、端縁１３ａおよび第二面１５ｂに対して角度を持たせて配設してある。本実施形態では、連結部１４は、端縁１３ａおよび第二面１５ｂに対して、略４５度の角度で配設してある。このように連結部１４の設置角度を規定することで、操作者に操作具Ｙを回転させる方向を意識付けすることができるため、除去可能片１５の回転操作をスムーズに行うことができる。   The connecting portion 14 is disposed with an angle with respect to the end edge 13a and the second surface 15b in a top view. In the present embodiment, the connecting portion 14 is disposed at an angle of approximately 45 degrees with respect to the edge 13a and the second surface 15b. By defining the installation angle of the connecting portion 14 in this manner, the operator can be made aware of the direction in which the operation tool Y is rotated, so that the removable operation of the removable piece 15 can be performed smoothly.

除去可能片１５を除去すると、筺体１０に形成された開口部１３、回路基板３０に形成された基板開口部３５および封止体に設けた封止体開口部２２が連通するようなる。これにより、図６に示したように、端子台３３に接続した信号線５０を、封止体開口部２２、基板開口部３５および開口部１３を介して電気機器Ｘの筺体１０の背面側に導出することができる。このようにして導出された信号線５０は、例えばマイコンメータやガスメータなどと接続させることができる。   When the removable piece 15 is removed, the opening 13 formed in the housing 10, the substrate opening 35 formed in the circuit board 30, and the sealing body opening 22 provided in the sealing body come to communicate with each other. As a result, as shown in FIG. 6, the signal line 50 connected to the terminal block 33 is placed on the back side of the housing 10 of the electrical device X via the sealing body opening 22, the substrate opening 35, and the opening 13. Can be derived. The signal line 50 thus derived can be connected to, for example, a microcomputer meter or a gas meter.

警報器Ｘを壁面に配設する場合、図７,８に示したように、予め当該壁面に固定してある取付金具などの取付手段６０に、当該警報器Ｘを取り付ける場合がある。当該取付手段６０は、例えば金属製とすることができるが、これに限られるものではない。
当該取付手段６０は、警報器Ｘの筺体１０の背面側に形成した係合部１６と係合できる複数の取付突起部６１を備える。本実施形態では、取付金具６０の両サイドに二つの取付突起部６１ａ、中央付近に一つの取付突起部６１ｂを設けた場合について説明する。
取付突起部６１ａは、筺体１０の背面側の周部に形成した係合凹部１６ａに係合する。また、取付突起部６１ｂは、除去されていない状態の除去可能片１５に係合する。当該取付突起部６１ｂには、除去可能片１５に係合する部位（取付突起部６１ｂの両側）に、二つの微小凸部６１ｃが形成してある。 When the alarm device X is disposed on the wall surface, as shown in FIGS. 7 and 8, the alarm device X may be attached to an attachment means 60 such as an attachment bracket fixed to the wall surface in advance. The attachment means 60 can be made of metal, for example, but is not limited thereto.
The attachment means 60 includes a plurality of attachment projections 61 that can be engaged with the engagement portion 16 formed on the back side of the housing 10 of the alarm device X. In the present embodiment, a case where two mounting projections 61a are provided on both sides of the mounting bracket 60 and one mounting projection 61b is provided near the center will be described.
The attachment protrusion 61 a engages with an engagement recess 16 a formed in the peripheral portion on the back side of the housing 10. Further, the attachment protrusion 61b engages with the removable piece 15 in a state where it is not removed. Two minute convex portions 61c are formed on the attachment protrusion 61b at portions that engage with the removable piece 15 (on both sides of the attachment protrusion 61b).

当該除去可能片１５において、対向する二つの第二面１５ｂは、電気機器Ｘを壁面に取り付ける取付手段６０の取付突起部６１ｂを挟んで圧接した状態で取付突起部６１ｂと係合する寸法で形成される。   In the removable piece 15, the two opposing second surfaces 15 b are formed with dimensions that engage with the mounting protrusions 61 b in a state where they are pressed against each other with the mounting protrusions 61 b of the mounting means 60 for mounting the electrical equipment X on the wall surface. Is done.

即ち、対向する二つの第二面１５ｂの間隔の寸法を、取付突起部６１ｂの幅ｍの寸法に比べてやや短く設定する。このとき、対向する二つの第二面１５ｂに取付突起部６１ｂを例えば圧入させて係合させたときには、当該取付突起部６１ｂを対向する二つの第二面１５ｂに圧接された状態で保持することができる。取付突起部６１ｂの幅ｍの寸法は、二つの微小凸部６１ｃを含んだ寸法である。取付突起部６１ｂが二つの第二面１５ｂに圧接された状態で係合しているとき、微小凸部６１ｃは第二面１５ｂに圧入した状態となるため、取付突起部６１ｂおよび二つの第二面１５ｂは強固に係合することとなる。そのため、電気機器Ｘを強固に取付手段６０に取付けることができる。   That is, the distance between the two opposing second surfaces 15b is set slightly shorter than the width m of the mounting protrusion 61b. At this time, when the mounting projection 61b is press-fitted and engaged with the two opposing second surfaces 15b, for example, the mounting projection 61b is held in pressure contact with the two opposing second surfaces 15b. Can do. The dimension of the width m of the mounting protrusion 61b is a dimension including the two minute protrusions 61c. When the mounting protrusion 61b is engaged with the two second surfaces 15b while being pressed, the minute projection 61c is press-fitted into the second surface 15b, so that the mounting protrusion 61b and the two second The surface 15b is firmly engaged. Therefore, the electric device X can be firmly attached to the attachment means 60.

本発明の電気機器の筺体構造は、例えば壁面に設置される防災用又は防犯用の電気機器の筺体構造に利用できる。   The housing structure of the electrical device of the present invention can be used for the housing structure of an electrical device for disaster prevention or crime prevention installed on a wall surface, for example.

Ｘ 電気機器
Ｙ 操作具
１０ 筺体
１３ 開口部
１３ａ 端縁
１４ 連結部
１５ 除去可能片
１５ａ 第一面
１５ｂ 第二面
１５ｃ 操作突起 X Electrical device Y Operating tool 10 Housing 13 Opening portion 13a End edge 14 Connecting portion 15 Removable piece 15a First surface 15b Second surface 15c Operation protrusion

Claims (4)

電気機器の外形を形成する筺体に形成された開口部と、
当該開口部の一部を覆い、前記開口部の端縁に対して破断可能な連結部によって連結される除去可能片と、を備えた電気機器の筺体構造において、
前記除去可能片は、前記開口部が形成された前記筺体の構成面に沿う第一面、および、前記第一面に対して交差してそれぞれが対向する二つの第二面を備え、
前記第一面に、前記除去可能片を回転操作によって除去する操作具によって把持される操作突起を備え、少なくとも前記第二面における前記開口部の端縁側に前記連結部を備え、
前記連結部は、上面視で、前記端縁および前記第二面に対して角度を持たせて配設してある電気機器の筺体構造。 An opening formed in a housing that forms the outer shape of the electrical device;
In a housing structure of an electric device, including a removable piece that covers a part of the opening and is connected to the edge of the opening by a breakable connecting portion,
The removable piece includes a first surface along a structural surface of the casing in which the opening is formed, and two second surfaces that cross each other and face each other.
The first surface is provided with an operation protrusion that is gripped by an operation tool that removes the removable piece by a rotation operation, and the connection portion is provided at least on the edge side of the opening in the second surface,
The connecting portion is a housing structure of an electric device arranged in an angle with respect to the edge and the second surface in a top view. 前記回転操作が前記第一面に交差する軸芯に対して行なわれるように、前記操作突起を上面視で矩形状に形成してある請求項１に記載の電気機器の筺体構造。   The housing structure for an electric device according to claim 1, wherein the operation protrusion is formed in a rectangular shape in a top view so that the rotation operation is performed on an axis that intersects the first surface. 前記操作突起が前記第二面にわたって延びる矩形状に備えてある請求項１または２に記載の電気機器の筺体構造。The housing structure of the electric device according to claim 1, wherein the operation protrusion is provided in a rectangular shape extending over the second surface. 前記操作突起の延びる方向とは異なる方向に、前記操作具を差し込むことが可能な空間が備えてある請求項１〜３の何れか一項に記載の電気機器の筺体構造。The housing structure of the electric device according to any one of claims 1 to 3, further comprising a space into which the operation tool can be inserted in a direction different from a direction in which the operation protrusion extends.
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