JP6030942B2

JP6030942B2 - Fire alarm equipment

Info

Publication number: JP6030942B2
Application number: JP2012272634A
Authority: JP
Inventors: 大祐後藤; 智一永田
Original assignee: Nohmi Bosai Ltd
Current assignee: Nohmi Bosai Ltd
Priority date: 2012-12-13
Filing date: 2012-12-13
Publication date: 2016-11-24
Anticipated expiration: 2032-12-13
Also published as: JP2014119820A

Description

本発明は、前面側が開口した有底枠体からなる筐体本体と、前記筐体本体の前記開口を前面側から覆うと共に取り外し可能な蓋体とを備えた火災報知設備用機器に関する。
火災報知設備用機器のとしては、例えば火災受信機、防排煙機器を動作させる操作盤等を含む。 The present invention relates to a device for fire alarm equipment comprising a casing main body formed of a bottomed frame body whose front side is open, and a lid that covers the opening of the casing main body from the front side and is removable.
Examples of the fire alarm equipment include a fire receiver, an operation panel for operating smoke-proof equipment.

火災報知設備用機器の一例としての火災受信機の筐体は、有底枠体からなり壁面に設置されて基板やコード類等を格納する筐体本体と、筐体本体の開口部を覆う蓋体を構成要素としているのが一般的である。
このような筺体本体と蓋体を構成要素としているものにおいて、筺体本体に蓋体を取り付ける取り付け方法としては、例えば、筐体本体と蓋体とを蝶番で接続して開閉可能にした蝶番式のものや、特許文献１に開示される電気機器収納用箱体のように蓋体を筺体本体にスライド可能に取り付けたスライド式のものがある。 The case of a fire receiver as an example of equipment for fire alarm equipment is composed of a frame with a bottom and is installed on a wall surface to store a substrate, cords, etc., and a cover that covers the opening of the case body Generally, the body is a component.
In such a case having a housing body and a lid as constituent elements, as an attachment method for attaching the lid body to the housing body, for example, a hinge-type that can be opened and closed by connecting the housing body and the lid body with a hinge There is a sliding type in which a lid is slidably attached to a casing body, such as a box for electrical equipment storage disclosed in Patent Document 1.

蝶番式のものは、筐体本体に対する蓋体の開閉方向が決められるため、蓋体の開閉側に障害物がある場所には設置しづらく、火災受信機の設置場所が制限されるという問題がある。
この点、特許文献１の電気機器収納用箱体は、筐体本体から蓋体のスライド方向が２方向あるので、蝶番式のものよりも設置位置の制限は少ないと言える。
また、特許文献１の電気機器収納用箱体は、筐体本体から取り外した蓋体を筐体本体の下辺に吊下げ可能にしている。そのため、取り外した蓋体を地面等に置かなくてもよく、この点では蝶番式と同様に設置時や点検時の作業性に優れていると言える。 The hinge type has a problem that the installation direction of the fire receiver is limited because the opening and closing direction of the lid with respect to the housing body is determined, so that it is difficult to install in places where there are obstacles on the opening and closing side of the lid. is there.
In this regard, it can be said that the electric device storage box of Patent Document 1 has less restrictions on the installation position than the hinge type because there are two sliding directions of the lid from the housing body.
Moreover, the electric equipment storage box of patent document 1 makes it possible to hang the cover body removed from the housing body on the lower side of the housing body. Therefore, it is not necessary to place the removed lid on the ground or the like. In this respect, it can be said that the workability at the time of installation and inspection is excellent as with the hinge type.

実開平５−６７１０８5-67108

しかし、特許文献１の電気機器収納用箱体は、蓋体を吊下げている状態で、配線作業等の作業を行っているときに、作業者の手などが誤って蓋体に当たると、蓋体が外れて落下してしまうことがある。作業中に蓋体が落下すると蓋体が破損する虞もあり、作業に支障がでるし、蓋体の落下を気にして作業を行うのでは作業性を円滑に行うことができず、いずれにしても作業性が悪いという問題がある。
また、火災受信機は収納するコード類が多くて筐体本体に収まりにくい場合がある。このような場合、コード類を押さえつけながら蓋を閉める必要があるが、特許文献１のようなスライド方式の蓋体では、例えば一方の手でコード類を押さえつけながら、他方の手で蓋体をスライドさせなければならないため、作業性が悪いという問題もある。
また、火災受信機を平坦でない壁面に設置すると、壁面の凹凸によって筐体本体が撓む場合がある。このような場合、特許文献１のようなスライド方式では、蓋体をスライドできず蓋を閉められないという問題もある。
また、特許文献１のようなスライド方式では、左右に蓋体をスライドさせて取り外すため、筐体の左右に他の物を設置することができないという問題もある。 However, the electric device storage box of Patent Document 1 is in a state where the operator's hand or the like accidentally hits the lid when performing wiring work or the like while the lid is suspended. Your body may fall off and fall. If the lid falls during the work, the lid may be damaged, which may hinder the work.If the lid is taken care of, the workability cannot be improved smoothly. However, there is a problem that workability is bad.
In addition, there are cases where the fire receiver has a large number of cords to be stored and is difficult to fit in the casing body. In such a case, it is necessary to close the lid while pressing the cords. However, in the case of the slide type lid as in Patent Document 1, for example, the lid is slid with the other hand while pressing the cords with one hand. Therefore, there is a problem that workability is poor.
Further, when the fire receiver is installed on a non-flat wall surface, the housing body may be bent due to the unevenness of the wall surface. In such a case, the sliding method as in Patent Document 1 has a problem that the lid cannot be slid and the lid cannot be closed.
Moreover, in the slide system like patent document 1, since a cover body is slid to right and left and removed, there also exists a problem that another thing cannot be installed in the right and left of a housing | casing.

本発明は、上記のような問題を解決するためになされたものであり、筺体本体と蓋体とを構成要素としている火災報知設備用機器であって、蓋体を外した状態で配線作業等の作業性に優れる火災報知設備用機器を得ることを目的とする。 The present invention has been made in order to solve the above-described problems, and is a device for fire alarm equipment having a casing body and a lid as constituent elements, and wiring work or the like with the lid removed. It aims at obtaining the equipment for fire alarm equipment which is excellent in workability.

（１）本発明に係る火災報知設備用機器は、前面側が開口した有底枠体からなる筐体本体と、前記筐体本体の前記開口を前面側から覆うと共に取り外し可能な蓋体とを備えた火災報知設備用機器であって、
前記筐体本体は、下辺部に下側係止部を有し、かつ、上辺部に上側が開口する上側係止穴を有する上側係止部を有し、
前記蓋体は、有底枠体からなり、上辺部に設けられて、前記下側係止部に係止して前記蓋体を前記筐体本体の下辺に吊下げ可能にする上側係止片部を備え、
前記筐体本体は、前記蓋体を前記筐体本体の下辺部に吊り下げた状態において、前記蓋体が上方に移動するのを規制する移動規制部を有しており、
前記蓋体を前記筐体本体の前記開口を前面側から覆うように配置したときに、前記蓋体に設けた前記上側係止片部が、前記筐体本体の前記上側係止穴に係止して、前記蓋体を前記筐体本体に仮止め可能になっており、
前記上側係止片部は、前記蓋体における上枠縁部から下方に延出する延出部を有し、該延出部における蓋体内面側に基端側から先端側にかけて高低差が形成されてなり、該高低差は基端側が高く、先端側が低く設定されていることを特徴とするものである。 (1) An apparatus for fire alarm equipment according to the present invention includes a housing body composed of a bottomed frame body whose front side is open, and a cover that covers the opening of the housing body from the front side and is removable. Fire alarm equipment,
The housing body has a lower locking portion on the lower side, and an upper locking portion having an upper locking hole that opens on the upper side.
The lid body is composed of a bottomed frame body, and is provided on an upper side portion, and is latched on the lower side latching portion so that the lid body can be suspended on the lower side of the housing body. Part
The housing body has a movement restricting portion that restricts the lid body from moving upward in a state where the lid body is suspended from a lower side portion of the housing body .
When the lid is arranged so as to cover the opening of the housing body from the front side, the upper locking piece provided on the lid is locked in the upper locking hole of the housing body. The lid can be temporarily fixed to the housing body,
The upper locking piece has an extending portion that extends downward from an edge of the upper frame of the lid body, and a height difference is formed from the base end side to the distal end side on the inner surface side of the lid body in the extending portion. The height difference is characterized in that the base end side is set high and the tip end side is set low .

（２）また、前面側が開口した有底枠体からなる筐体本体と、前記筐体本体の前記開口を前面側から覆うと共に取り外し可能な蓋体とを備えた火災報知設備用機器であって、
前記筐体本体は、下辺部に下側係止部を有し、
前記蓋体は、上辺部に設けられて、前記下側係止部に係止して前記蓋体を前記筐体本体の下辺に吊下げ可能にする上側係止片部を備え、
前記筐体本体は、前記蓋体を前記筐体本体の下辺部に吊り下げた状態において、前記蓋体が上方に移動するのを規制する移動規制部を有しており、
該移動規制部は、バッテリーを保持するバッテリー保持アームによって構成されていることを特徴とするものである。 (2) In addition, the device for fire alarm equipment includes a housing main body formed of a bottomed frame body whose front side is open, and a lid that covers the opening of the housing main body from the front side and is removable. ,
The housing body has a lower locking portion on the lower side,
The lid body is provided on an upper side portion, and includes an upper locking piece portion that is locked to the lower side locking portion and allows the lid body to be suspended from the lower side of the housing body,
The housing body has a movement restricting portion that restricts the lid body from moving upward in a state where the lid body is suspended from a lower side portion of the housing body.
The movement restricting portion is constituted by a battery holding arm that holds the battery .

（３）また、前面側が開口した有底枠体からなる筐体本体と、前記筐体本体の前記開口を前面側から覆うと共に取り外し可能な蓋体とを備えた火災報知設備用機器であって、
前記筐体本体は、下辺部に、上面側が切り欠かれる上側係止穴と、下面側が切り欠かれる下側係止穴を有する下側係止部を有し、
前記蓋体は、上辺部に設けられて前記下側係止部に係止して前記蓋体を前記筐体本体の下辺に吊下げ可能にする上側係止片部と、下辺部に設けられた下側係止凸片部を有し、
前記筐体本体は、前記蓋体を前記筐体本体の下辺部に吊り下げた状態において、前記蓋体が上方に移動するのを規制する移動規制部を有し、
前記蓋体は、前記筐体本体の下辺に吊下げるときには前記上側係止片部を前記下側係止部の前記上側係止穴に係止し、前記筐体本体の開口を覆うように前記筐体本体に被せたときには前記下側係止凸片部を前記下側係止部の下側係止穴に係止することを特徴とするものである。 (3) In addition, the device for fire alarm equipment includes a housing main body formed of a bottomed frame body whose front side is open, and a lid that covers the opening of the housing main body from the front side and is removable. ,
The housing body has a lower locking portion having an upper locking hole in which the upper surface side is cut off and a lower locking hole in which the lower surface side is cut off in the lower side portion,
The lid body is provided on the lower side portion and an upper side locking piece portion provided on the upper side portion and locked on the lower side locking portion so that the lid body can be suspended on the lower side of the housing body. A lower locking convex piece,
The housing body has a movement restricting portion that restricts the lid body from moving upward in a state where the lid body is suspended from a lower side portion of the housing body.
When the lid is suspended from the lower side of the housing body, the upper locking piece is locked to the upper locking hole of the lower locking portion so as to cover the opening of the housing body. The lower locking projection piece is locked to the lower locking hole of the lower locking portion when the casing body is covered .

本発明においては、蓋体を筺体本体の下辺部に吊り下げた状態において、蓋体が上方に移動するのを規制する移動規制部を有していることにより、蓋体を吊下げた状態で作業者の手などが蓋体に当たっても蓋体の落下を防止することができ、蓋体の落下を気にせずに作業ができ、作業性に優れる。
また、上側係止片部の延出部は基端部から先端部にかけて段部が形成されており、該段部は、蓋体を筺体本体に被せた状態において、延出部の基端部側が高く、先端側が低く設定されているため、筐体本体が撓んでいても蓋体を閉じることができ、この意味でも作業性に優れる。 In the present invention, in a state where the lid is suspended from the lower side of the housing body, the lid is suspended by having a movement restricting portion that restricts the lid from moving upward. Even if the operator's hand or the like hits the lid, the lid can be prevented from falling, the work can be performed without worrying about the lid falling, and the workability is excellent.
Further, the extending portion of the upper locking piece portion is formed with a step portion from the base end portion to the tip end portion, and the step portion is a base end portion of the extension portion in a state where the lid body is covered with the casing body. Since the side is set high and the tip side is set low, the lid can be closed even when the casing body is bent, and in this sense, the workability is excellent.

本発明の実施の形態に係る火災受信機の筐体（筐体本体と蓋体）の斜視図である。It is a perspective view of the housing | casing (a housing | casing main body and a cover body) of the fire receiver which concerns on embodiment of this invention. 本発明の実施の形態に係る火災受信機の筐体本体の斜視図である。It is a perspective view of the housing body of the fire receiver concerning an embodiment of the invention. 本発明の実施の形態に係る火災受信機の蓋体の正面図である。It is a front view of the lid of the fire receiver concerning an embodiment of the invention. 本発明の実施の形態に係る火災受信機の筐体本体の一部を拡大して図示したものである。1 is an enlarged view of a part of a casing body of a fire receiver according to an embodiment of the present invention. 図４の筐体本体の一部の立断面図である。FIG. 5 is an elevational sectional view of a part of the housing body of FIG. 4. 図３における断面Ａで切断した蓋体の図３中右側の部分を、図３中の矢印Ｂの方向から見た状態の図である。FIG. 4 is a diagram of a state where a right-side portion in FIG. 3 of the lid body cut along a cross section A in FIG. 3 is viewed from the direction of an arrow B in FIG. 3. 図３における断面Ａで切断した蓋体の図３中右側の部分を、図３中の矢印Ｃの方向から見た状態の図である。FIG. 4 is a diagram of a state where a right-side portion in FIG. 3 of the lid body cut along a cross section A in FIG. 3 is viewed from the direction of an arrow C in FIG. 3. 図３におけるＤ−Ｄ矢視断面図である。矢視断面図である。It is DD sectional view taken on the line in FIG. It is arrow sectional drawing. 図１における断面Ｅで切断した筐体の図１中左側の部分を、断面Ｅに直交する方向から見た状態の図である。FIG. 2 is a diagram of a state where a left side portion in FIG. 1 of the housing cut along a cross section E in FIG. 1 is viewed from a direction orthogonal to the cross section E. 図９の一部を拡大して図示したものである。FIG. 10 is an enlarged view of a part of FIG. 9. 本発明の実施の形態に係る火災受信機の筐体の動作説明をする説明図であって、図９に示した状態から筐体を開いている途中の状態を図示したものである。It is explanatory drawing explaining operation | movement of the housing | casing of the fire receiver which concerns on embodiment of this invention, Comprising: The state in the middle of opening a housing | casing from the state shown in FIG. 9 is illustrated. 本発明の実施の形態に係る火災受信機の筐体の動作説明をする説明図であって、筐体を開いている途中の状態を比較例と比較しながら説明するための説明図である。It is explanatory drawing explaining operation | movement of the housing | casing of the fire receiver which concerns on embodiment of this invention, Comprising: It is explanatory drawing for demonstrating the state in the middle of opening a housing | casing compared with a comparative example. 本発明の実施の形態に係る火災受信機の蓋体を筐体本体に吊下げている状態の斜視図である。It is a perspective view of the state which has suspended the cover body of the fire receiver which concerns on embodiment of this invention on the housing body. 図１３に示す吊下げられた蓋体の取外し方法について説明する説明図である。It is explanatory drawing explaining the removal method of the suspended cover body shown in FIG. 本発明の実施の形態に係る火災受信機の蓋体の吊下げ構造の効果について説明するための説明図であって、比較例について説明する説明図である。It is explanatory drawing for demonstrating the effect of the hanging structure of the cover body of the fire receiver which concerns on embodiment of this invention, Comprising: It is explanatory drawing explaining a comparative example. 本発明の実施の形態に係る火災受信機の筐体の壁面への設置状態を説明する説明図であって、筐体を上方から見た状態の図である。It is explanatory drawing explaining the installation state to the wall surface of the housing | casing of the fire receiver which concerns on embodiment of this invention, Comprising: It is the figure of the state which looked at the housing | casing from the upper direction. 図１６（ｂ）の状態における筐体本体と蓋体との係止状態を説明する説明図である。It is explanatory drawing explaining the latching state of the housing body and a cover body in the state of FIG.16 (b).

以下の実施の形態においては、火災報知設備用機器の一例として火災受信機を例に挙げて説明する。
本発明の一実施の形態に係る火災受信機１の筐体３は、図１に示すように、扁平した箱からなり、壁面に取り付けられる筐体本体５と、筐体本体５の開口部を前面側から覆うと共に取り外し可能な蓋体７とを有している。図１は蓋体７を筺体本体５の開口を覆うように筺体本体５に被せて、筐体本体５の開口部が蓋体７で覆われた状態の筐体３を示している。なお、以下の説明において、この状態の筐体３を、閉じた状態の筐体３という。
図２は、図１の筐体３から蓋体７を取り外して筐体本体５のみの状態を図示したものである。図２には、筐体本体５が空の状態を示しているが、組立時には筐体本体５の中には基板、電池やコード等が格納される。
筐体本体５と蓋体７について以下に図１〜図８に基づいて詳細に説明する。 In the following embodiments, a fire receiver will be described as an example of a fire alarm equipment.
As shown in FIG. 1, a housing 3 of a fire receiver 1 according to an embodiment of the present invention is a flat box, and includes a housing body 5 attached to a wall surface, and an opening of the housing body 5. It has a lid 7 that can be removed from the front side and can be removed. FIG. 1 shows the housing 3 in a state in which the lid body 7 is put on the housing body 5 so as to cover the opening of the housing body 5 and the opening of the housing body 5 is covered with the lid body 7. In the following description, the casing 3 in this state is referred to as a closed casing 3.
FIG. 2 illustrates a state in which only the housing body 5 is obtained by removing the lid 7 from the housing 3 of FIG. Although FIG. 2 shows the case body 5 being empty, a substrate, a battery, a cord, and the like are stored in the case body 5 during assembly.
The housing body 5 and the lid body 7 will be described in detail below with reference to FIGS.

＜筐体本体＞
筐体本体５は、図２に示すように、前面側に開口している開口部を有する浅底の有底枠体からなる。筐体本体５は底面（開口部に対向する面）を壁面と接するようにして取り付けられた後、蓋体７で筐体本体５の開口部が覆われる。
筐体本体５には、蓋体７を係止するための係止部として、筐体本体５の上側の枠部（上辺部）の内壁面に枠部の縁よりも突出する小片からなる上側係止部９（図２の図中上側の丸で囲んだ部分を参照）と、筐体本体５の下側の枠部（下辺部）の内壁面に枠部の縁よりも突出する小片からなる下側係止部１１（図２の図中下側の丸で囲んだ部分を参照）が設けられている。 <Case body>
As shown in FIG. 2, the housing body 5 is formed of a shallow bottomed frame body having an opening that opens to the front side. The housing body 5 is attached so that the bottom surface (the surface facing the opening) is in contact with the wall surface, and then the opening of the housing body 5 is covered with the lid body 7.
The housing main body 5 has an upper portion made of a small piece projecting from the edge of the frame portion on the inner wall surface of the upper frame portion (upper side portion) as a locking portion for locking the lid body 7. From the locking portion 9 (see the circled portion on the upper side in the drawing of FIG. 2) and a small piece protruding from the edge of the frame portion on the inner wall surface of the lower frame portion (lower side portion) of the housing body 5 A lower locking portion 11 (refer to a portion surrounded by a lower circle in FIG. 2) is provided.

図４（ａ）に上側係止部９を、図４（ｂ）に下側係止部１１の拡大図を示す。また、図５（ａ）に上側係止部９の幅方向中心を通る立断面図を、図５（ｂ）に下側係止部１１の幅方向中心を通る立断面図を示す。
上側係止部９は、中空になっており、図４（ａ）および図５（ａ）に示す通り、上側係止部９の上面側が切り欠かれて開口することにより上側係止穴９ａが形成されている。
下側係止部１１も上側係止部９と同様に中空になっており、図４（ｂ）および図５（ｂ）に示す通り、下側係止部１１の上面側が切り欠かれることにより上側係止穴１１ａが形成され、同様に下面側が切り欠かれることにより下側係止穴１１ｂが形成されている。 FIG. 4A shows an upper locking portion 9 and FIG. 4B shows an enlarged view of the lower locking portion 11. Further, FIG. 5A shows an elevational sectional view passing through the center in the width direction of the upper locking portion 9, and FIG. 5B shows an elevation sectional view passing through the center in the width direction of the lower locking portion 11.
The upper locking portion 9 is hollow. As shown in FIGS. 4A and 5A, the upper locking hole 9a is opened by cutting the upper surface side of the upper locking portion 9 and opening it. Is formed.
The lower locking portion 11 is also hollow like the upper locking portion 9, and as shown in FIGS. 4B and 5B, the upper surface side of the lower locking portion 11 is cut away. The upper locking hole 11a is formed, and similarly, the lower locking hole 11b is formed by cutting the lower surface side.

上側係止部９と下側係止部１１は、図２に示すように、各枠部に左右一対設けられている。また、上側係止部９と下側係止部１１は、筐体本体５における縦方向位置が一致するように設けられている。 As shown in FIG. 2, the upper locking portion 9 and the lower locking portion 11 are provided in a pair of left and right on each frame portion. Moreover, the upper side locking part 9 and the lower side locking part 11 are provided so that the vertical position in the housing body 5 may coincide.

筐体本体５の下側には、図２に示すように、筐体本体５の底面から開口側に突出する２本の棒状からなり、該棒の上面側で図示しないバッテリーを保持するためのバッテリー保持アーム１３が２本設けられている。バッテリー保持アーム１３は、正面視で、例えば筐体本体５の右側に偏った位置に設けられている。 As shown in FIG. 2, the housing body 5 has two rods protruding from the bottom surface of the housing body 5 to the opening side, and holds a battery (not shown) on the top surface of the rod. Two battery holding arms 13 are provided. The battery holding arm 13 is provided at a position biased to the right side of the housing body 5, for example, when viewed from the front.

＜蓋体＞
蓋体７は、図１および図６〜図８に示すように、浅底の有底枠体からなる。
蓋体７には筐体本体５に係止するために、蓋体７の上側に上側係止片部１５（図６中丸で囲んだ部分の拡大図、および図８中の上側の丸で囲んだ部分の拡大図を参照）と、蓋体７の下側に下側係止凸片部１７（図７中丸で囲んだ部分の拡大図、および図８中の下側の丸で囲んだ部分の拡大図を参照）とが設けられている。 <Cover body>
As shown in FIGS. 1 and 6 to 8, the lid body 7 is formed of a shallow bottomed frame body.
In order to lock the lid body 7 to the casing body 5, an upper side locking piece 15 (enlarged view of a portion surrounded by a circle in FIG. 6 and an upper circle in FIG. 8) A lower locking convex piece 17 on the lower side of the lid 7 (an enlarged view of a portion surrounded by a circle in FIG. 7 and a lower circled portion in FIG. 8) (See the enlarged view of FIG. 1).

上側係止片部１５は、図６および図８に示すように、蓋体７の上側における枠部（上辺部）の縁から下方に延出する平板状からなる平板部１９と、平板部１９における内面側（蓋体７の内面側）に立設された複数のリブ２１によって構成されている。平板部１９とリブ２１が本発明の延出部に相当する。このような上側係止片部１５を筐体本体５の下側係止部１１に係止することにより、蓋体７を筐体本体５の下辺に吊下げ可能にしている。ここで、蓋体７の内面側とは、図８に示すように、有底枠体状の蓋体７における底面７ａ側をいう。なお、リブ２１は、枠部および平板部１９と一体に形成されている。 As shown in FIGS. 6 and 8, the upper locking piece 15 includes a flat plate portion 19 having a flat plate shape extending downward from an edge of the frame portion (upper side portion) on the upper side of the lid body 7, and a flat plate portion 19. Are formed by a plurality of ribs 21 erected on the inner surface side (the inner surface side of the lid body 7). The flat plate portion 19 and the rib 21 correspond to the extending portion of the present invention. By locking such an upper locking piece 15 to the lower locking portion 11 of the housing body 5, the lid 7 can be suspended from the lower side of the housing body 5. Here, as shown in FIG. 8, the inner surface side of the lid body 7 refers to the bottom surface 7 a side of the bottomed frame-shaped lid body 7. The rib 21 is formed integrally with the frame portion and the flat plate portion 19.

リブ２１は基端部から先端部にかけて段形状になっており、該段形状は、基端部側が蓋体７の内面側に出っ張るように形成されている。すなわち、図６および図８に示すように、リブ２１の先端部側の段部（第２段部２１ｂ）は、リブ２１の基端部側の段部（第１段部２１ａ）よりも、平板部１９からの高さが低くなっている。第１段部２１ａと第２段部２１ｂが本発明の高低差に相当する。
第１段部２１ａと第２段部２１ｂの境界部分は傾斜面になっている。 The rib 21 has a step shape from the base end portion to the tip end portion, and the step shape is formed so that the base end portion side protrudes to the inner surface side of the lid body 7. That is, as shown in FIGS. 6 and 8, the step portion (second step portion 21 b) on the distal end side of the rib 21 is more than the step portion (first step portion 21 a) on the proximal end side of the rib 21. The height from the flat plate part 19 is low. The first step portion 21a and the second step portion 21b correspond to the height difference of the present invention.
The boundary portion between the first step portion 21a and the second step portion 21b is an inclined surface.

上側係止片部１５は、２箇所あり、筐体本体５の各上側係止部９に対応する位置に設けられている。上側係止片部１５の横幅は、上側係止部９の上側係止穴９ａおよび、下側係止部１１の上側係止穴１１ａに挿入可能な大きさに設定されている。すなわち、上側係止片部１５の横幅は、上側係止部９の上側係止穴９ａまたは下側係止部１１の上側係止穴１１ａの内径の横幅のうち、いずれか小さい方の横幅と同等か、それより小さくなっている。
そのため、蓋体７の上側係止片部１５を、筐体本体５の上側係止部９の上側係止穴９ａに挿入して係止させることで、筐体本体５の開口部を蓋体７で覆う（筐体３を閉じる）ことができる。また、上側係止片部１５を下側係止部１１の上側係止穴１１ａに挿入すれば、蓋体７を筐体本体５の下辺部に吊下げることができる。
以上のように、上側係止片部１５は、筐体３を閉じるための係止部としての役割、および蓋体７を吊下げるための係止部としての役割の両方の役割を兼用している。 There are two upper locking pieces 15 provided at positions corresponding to the upper locking portions 9 of the housing body 5. The lateral width of the upper locking piece 15 is set to a size that can be inserted into the upper locking hole 9 a of the upper locking portion 9 and the upper locking hole 11 a of the lower locking portion 11. That is, the lateral width of the upper locking piece 15 is the smaller of the lateral width of the inner diameter of the upper locking hole 9 a of the upper locking portion 9 or the upper locking hole 11 a of the lower locking portion 11. It is the same or smaller.
Therefore, the upper locking piece 15 of the lid body 7 is inserted into the upper locking hole 9a of the upper locking portion 9 of the housing body 5 to be locked, thereby opening the opening of the housing body 5 to the lid body. 7 (close the housing 3). Further, if the upper locking piece 15 is inserted into the upper locking hole 11 a of the lower locking portion 11, the lid body 7 can be suspended from the lower side portion of the housing body 5.
As described above, the upper locking piece 15 serves both as a locking portion for closing the housing 3 and a role as a locking portion for hanging the lid 7. Yes.

平板部１９の先端から蓋体７の上側の枠部の上面までの長さＬ₁（＝平板部１９の延出長さ＋蓋体７の上側の枠部の板厚、図８参照）は、筐体本体５の下側係止部１１の上側係止穴１１ａとバッテリー保持アーム１３の下面との間の長さＬ₂（図１０（ｂ）参照）よりも若干短く設定されている。そのため、上側係止片部１５は、上側係止穴１１ａとバッテリー保持アーム１３との間を通過して、上側係止穴１１ａに挿入することができる。 The length L ₁ from the tip of the flat plate portion 19 to the upper surface of the upper frame portion of the lid body 7 (= extension length of the flat plate portion 19 + plate thickness of the upper frame portion of the lid body 7, see FIG. 8) The length L ₂ between the upper locking hole 11 a of the lower locking portion 11 of the housing body 5 and the lower surface of the battery holding arm 13 (see FIG. 10B) is set slightly shorter. Therefore, the upper locking piece 15 can pass between the upper locking hole 11a and the battery holding arm 13 and can be inserted into the upper locking hole 11a.

下側係止凸片部１７は、図７および図８に示すように、蓋体７の下側の枠部（下辺部）から上方に突出する複数の凸片部からなる。
下側係止凸片部１７は、下側係止部１１と同数、本発明の実施の形態では２箇所あり、筐体本体５の各下側係止部１１に対応する位置に設けられている。下側係止凸片部１７の大きさは、下側係止部１１の下側係止穴１１ｂの大きさと同じか、それよりわずかに小さくなっており、下側係止凸片部１７が下側係止穴１１ｂに挿入可能な大きさに設定されている。そのため、蓋体７で筐体本体５の開口を前面側から覆うと、下側係止凸片部１７は下側係止部１１の下側係止穴１１ｂに挿入されて係止され、蓋体７が筐体本体５に仮止めされるようになっている。
また、下側係止凸片部１７は、両面が面取りされており、略三角形の形状をしている。このため、両面面取りしていない場合と比べて、下側係止凸片部１７が下側係止部１１の下側係止穴１１ｂに係止しやすく、また取り外すときにも取り外しやすくなっている。 As shown in FIGS. 7 and 8, the lower locking convex piece portion 17 includes a plurality of convex piece portions protruding upward from the lower frame portion (lower side portion) of the lid body 7.
The number of the lower locking protrusions 17 is the same as the number of the lower locking portions 11, and there are two in the embodiment of the present invention, and are provided at positions corresponding to the lower locking portions 11 of the housing body 5. Yes. The size of the lower latching convex piece 17 is the same as or slightly smaller than the size of the lower latching hole 11b of the lower latching portion 11. It is set to a size that can be inserted into the lower locking hole 11b. Therefore, when the cover 7 covers the opening of the housing body 5 from the front side, the lower locking projection piece 17 is inserted into the lower locking hole 11b of the lower locking portion 11 and locked. The body 7 is temporarily fixed to the housing body 5.
Moreover, both sides of the lower locking convex piece portion 17 are chamfered and have a substantially triangular shape. For this reason, compared with the case where both sides are not chamfered, the lower locking projection piece 17 is easily locked in the lower locking hole 11b of the lower locking portion 11, and is also easy to remove when removed. Yes.

以上のように構成された筐体３の使用状態（筐体３を閉じた状態、筐体３を開いている途中の状態、蓋体７を筐体本体５に吊下げた状態、筐体３を閉じた状態の他の態様）について、以下に図９〜図１７に基づいて説明する。
筐体３の閉じた状態について図９と図１０に基づいて説明する。図９中の上側の丸で囲んだ部分の拡大図を図１０（ａ）に、図９中の下側の丸で囲んだ部分の一部を拡大したものを図１０（ｂ）に示す。
筐体３を閉じた状態において、筐体３の上側では、図１０（ａ）に示す通り、筐体本体５の上側係止部９の上側係止穴９ａに蓋体７の上側係止片部１５が挿入されて、上側係止部９と上側係止片部１５の第１段部２１ａとで係止している。 Usage state of the casing 3 configured as described above (the casing 3 is closed, the casing 3 is being opened, the lid 7 is suspended from the casing body 5, and the casing 3 Other aspects of the closed state will be described below with reference to FIGS.
The closed state of the housing 3 will be described with reference to FIGS. 9 and 10. FIG. 10A shows an enlarged view of a portion surrounded by an upper circle in FIG. 9, and FIG. 10B shows an enlarged view of a portion surrounded by a lower circle in FIG.
With the housing 3 closed, on the upper side of the housing 3, as shown in FIG. 10A, the upper locking piece of the lid 7 is inserted into the upper locking hole 9 a of the upper locking portion 9 of the housing body 5. The portion 15 is inserted and locked by the upper locking portion 9 and the first step portion 21 a of the upper locking piece portion 15.

他方、筐体３の下側では、図１０（ｂ）に示す通り、筐体本体５の下側係止部１１の下側係止穴１１ｂに、蓋体７の下側係止凸片部１７の先端が挿入されて係止している。
このように、閉じた状態の筐体３において筐体本体５と蓋体７は、上側と下側とで係止している。 On the other hand, on the lower side of the housing 3, as shown in FIG. 10B, the lower locking convex piece portion of the lid 7 is inserted into the lower locking hole 11 b of the lower locking portion 11 of the housing body 5. The tip of 17 is inserted and locked.
Thus, in the closed casing 3, the casing body 5 and the lid body 7 are locked on the upper side and the lower side.

閉じた状態から筐体３（図９および図１０を参照）を開く場合は、蓋体７の下側を設置時正面視で奥から手前の方向（図１１中の矢印の方向）に引く。こうすることで、下側係止凸片部１７が下側係止部１１の下側係止穴１１ｂの縁を乗り越えて係止状態が解除されるとともに、上側係止部９と上側係止片部１５とが係止している箇所を中心に蓋体７が回動して開く（図１１参照）。 When the housing 3 (see FIGS. 9 and 10) is opened from the closed state, the lower side of the lid body 7 is pulled from the back to the front (in the direction of the arrow in FIG. 11) in front view when installed. By doing so, the lower locking projection piece 17 gets over the edge of the lower locking hole 11b of the lower locking portion 11 to release the locking state, and the upper locking portion 9 and the upper locking portion are released. The lid 7 pivots and opens around the place where the piece 15 is locked (see FIG. 11).

蓋体７の回動する角度は、上側係止片部１５のリブ２１が上側係止部９に当接することによって規制される。
仮に、リブ２１に段部が形成されていない場合、図１２（ａ）に示すようにリブ２１の先端の角が上側係止部９に当接することによって、蓋体７はα₀°しか回動しない。
これに対して、本実施の形態に係る蓋体７は、リブ２１の先端側の高さが低くなるように段部が形成されている（第２段部２１ｂが設けられている）ため、図１２（ｂ）に示すように蓋体７を図１２（ａ）の場合よりも大きな角度であるα₁°回動させることができる。 The rotation angle of the lid body 7 is regulated by the rib 21 of the upper locking piece 15 coming into contact with the upper locking portion 9.
If the rib 21 is not formed with a stepped portion, as shown in FIG. 12A, the corner of the tip of the rib 21 abuts against the upper locking portion 9, so that the lid 7 rotates only α ₀ °. Does not move.
On the other hand, the lid body 7 according to the present embodiment has a stepped portion (the second stepped portion 21b is provided) so that the height of the tip side of the rib 21 is reduced. As shown in FIG. 12B, the lid body 7 can be rotated by α ₁ ° which is a larger angle than in the case of FIG.

また、リブ２１に段部が形成されていない場合においては、蓋体７を大きく回動可能にするためには、上側係止片部１５の長さを短くしなければならず、この場合、蓋体７が外れやすくなる。この点、本実施の形態に係る蓋体７はリブ２１に段部を形成したため、上側係止片部１５の長さを長くでき、蓋体７が筐体本体５から外れにくくなっており、かつ蓋体７の回動角度を大きくできるのである。 Further, in the case where the step portion is not formed on the rib 21, the length of the upper locking piece portion 15 must be shortened in order to allow the lid body 7 to be largely rotated. The lid body 7 is easy to come off. In this respect, since the lid body 7 according to the present embodiment forms the step portion on the rib 21, the length of the upper locking piece portion 15 can be increased, and the lid body 7 is difficult to come off from the housing body 5. In addition, the rotation angle of the lid 7 can be increased.

蓋体７を回動させた状態（図１１参照）で蓋体７を持ち上げて、筐体本体５の上側係止部９と蓋体７の上側係止片部１５との係止を解除すれば、筐体本体５から蓋体７を取り外すことができる。
取り外した状態で、蓋体７の上側係止片部１５を、筐体本体５の下側係止部１１の上側係止穴１１ａに上方から挿入して係止させることで、図１３に示すように、蓋体７を筐体本体５の下側に吊下げることができる。そのため、筐体本体５への作業を行う場合、取り外した蓋体７を地面等に置かなくてもよく、作業性に優れ、また蓋体７が汚れたり傷がついたり、紛失するようなこともない。 The lid body 7 is lifted in a state where the lid body 7 is rotated (see FIG. 11), and the engagement between the upper locking portion 9 of the housing body 5 and the upper locking piece portion 15 of the lid body 7 is released. In this case, the lid body 7 can be removed from the housing body 5.
In the removed state, the upper locking piece portion 15 of the lid body 7 is inserted into the upper locking hole 11a of the lower locking portion 11 of the housing body 5 from above to be locked, and is shown in FIG. As described above, the lid body 7 can be hung on the lower side of the housing body 5. Therefore, when working on the housing body 5, the removed lid body 7 does not have to be placed on the ground or the like, and is excellent in workability, and the lid body 7 becomes dirty, scratched or lost. Nor.

蓋体７が筐体本体５に吊下げられている状態における、下側係止部１１の幅方向中心を通る立断面を図１４（ａ）に示す。
吊下げられた状態から蓋体７を取外すには、図１４（ａ）中の矢印に示すように、蓋体７を垂直方向上側に持ち上げて、筐体本体５の開口側（図１４（ｂ）中の矢印を参照）に引き出すことで行う。 FIG. 14A shows an elevational section passing through the center in the width direction of the lower locking portion 11 in a state where the lid body 7 is suspended from the housing body 5.
To remove the lid 7 from the suspended state, as shown by the arrow in FIG. 14A, the lid 7 is lifted upward in the vertical direction, and the opening side of the housing body 5 (FIG. 14B ) (See the arrow in the middle)).

蓋体７が吊下げられた状態において、作業者の手等が蓋体７に誤って当ったとしても蓋体７がある程度持ち上がることで、筐体本体５の下側係止部１１と蓋体７の上側係止片部１５との係止状態が一時的に解除される場合がある。この場合、蓋体７が持ち上がった分だけ垂直に下降すれば上側係止片部１５が下側係止部１１の上側係止穴１１ａに挿入されて、再び係止状態になる。
なお、上述したとおり、リブ２１は第１段部２１ａと第２段部２１ｂと境界部分に傾斜面を有している（図８のリブ２１の拡大図参照）ため、蓋体７が垂直に下降する場合ときに、前記傾斜面によって蓋体７がガイドされることで係止状態に戻りやすくなっている。 Even when the operator's hand or the like accidentally hits the lid body 7 in the state where the lid body 7 is suspended, the lid body 7 is lifted to some extent, so that the lower locking portion 11 and the lid body of the housing body 5 are lifted. 7 may be temporarily released from the locked state with the upper locking piece 15. In this case, if the lid body 7 is vertically lowered by the lifted amount, the upper locking piece portion 15 is inserted into the upper locking hole 11a of the lower locking portion 11 to be locked again.
As described above, the rib 21 has an inclined surface at the boundary between the first step portion 21a and the second step portion 21b (see the enlarged view of the rib 21 in FIG. 8), so the lid body 7 is vertical. When descending, the lid body 7 is guided by the inclined surface, so that it is easy to return to the locked state.

仮に、上側係止片部１５の平板部１９の延出長さが短くて、図１５（ａ）に示すように、下側係止部１１の上側係止穴１１ａとバッテリー保持アーム１３の下面との間の長さＬ₂（図１０参照）に対して、平板部１９の先端から蓋体７の上側の枠部の上面までの長さＬ₁（図８参照）が短すぎる場合、蓋体７の上枠がバッテリー保持アーム１３の下面に当たるまで大きく持ち上がることができる。
この場合、再び係止状態になるには、蓋体７は長い距離を垂直に下降しなければならない。そのため、蓋体７が持ち上がった状態から少しでも筐体本体５の開口側に移動すると、上側係止片部１５は下側係止部１１の上側係止穴１１ａに挿入されず、蓋体７は外れてしまう（図１５（ｂ）参照）。 If the extension length of the flat plate portion 19 of the upper locking piece 15 is short, the upper locking hole 11a of the lower locking portion 11 and the lower surface of the battery holding arm 13 as shown in FIG. When the length L ₁ (see FIG. 8) from the front end of the flat plate portion 19 to the upper surface of the upper frame portion of the lid body 7 is too short relative to the length L ₂ between them (see FIG. 10), the lid The body 7 can be lifted greatly until the upper frame of the body 7 hits the lower surface of the battery holding arm 13.
In this case, the lid 7 must descend vertically over a long distance in order to be locked again. Therefore, when the lid body 7 is lifted from the lifted state to the opening side of the housing body 5, the upper locking piece 15 is not inserted into the upper locking hole 11 a of the lower locking portion 11. Will come off (see FIG. 15B).

この点、上側係止片部１５の平板部１９の先端から蓋体７の上側の枠部の上面までの長さＬ₁は、上述したとおり、筐体本体５の下側係止部１１の上側係止穴１１ａとバッテリー保持アーム１３の下面との間の長さＬ₂よりもわずかに短い長さに設定されているため、蓋体７に作業者の手等が当たって持ち上がったとしても、蓋体７の上枠がバッテリー保持アーム１３の下面に当たり、その後、少しでも蓋体７が垂直方向に下降すれば、上側係止片部１５が上側係止穴１１ａに係止できるようになっている。
この意味で、Ｌ₁とＬ₂の差は０．５ｍｍ〜３．０ｍｍに設定するのが好ましい。 In this regard, the length L ₁ from the tip of the flat plate portion 19 of the upper locking piece 15 to the upper surface of the upper frame portion of the lid body 7 is as described above of the lower locking portion 11 of the housing body 5. Since the length is set to be slightly shorter than the length L ₂ between the upper locking hole 11a and the lower surface of the battery holding arm 13, even if the operator's hand or the like hits the lid 7, If the upper frame of the lid 7 hits the lower surface of the battery holding arm 13 and then the lid 7 is lowered in the vertical direction, the upper locking piece 15 can be locked in the upper locking hole 11a. ing.
In this sense, the difference between L ₁ and L ₂ is preferably set to 0.5 mm to 3.0 mm.

すなわち、バッテリー保持アーム１３は、蓋体７を筺体本体５に吊り下げた状態において、蓋体７が上方に移動するのを規制する移動規制部としての役割を担っている。
このように、蓋体７が持ち上がったとしても上側係止片部１５の先端部と上側係止穴１１ａとの距離はわずかであり、この距離だけ垂直に下降できれば、上側係止片部１５が下側係止部１１の上側係止穴１１ａに挿入されて、再び係止状態になることができる。従って、蓋体７は筐体本体５に吊下げた状態から蓋体７が外れて落下しにくい。
また、上側係止片部１５の先端部が細くなっているため、蓋体７が持ち上がったときに、多少前後にずれたとしても、再び係止状態に戻りやすくなっている。 That is, the battery holding arm 13 plays a role as a movement restricting portion that restricts the lid 7 from moving upward in a state where the lid 7 is suspended from the housing body 5.
Thus, even if the lid body 7 is lifted, the distance between the tip of the upper locking piece 15 and the upper locking hole 11a is small. If the distance can be lowered vertically by this distance, the upper locking piece 15 is It can be inserted into the upper locking hole 11a of the lower locking portion 11 to be locked again. Accordingly, the lid body 7 is difficult to fall off because the lid body 7 is detached from the state suspended from the housing body 5.
In addition, since the tip of the upper locking piece 15 is thin, even when the lid 7 is lifted, even if it is slightly shifted back and forth, it is easy to return to the locked state again.

作業が終われば、吊下げ状態の蓋体７を外して、筐体３を閉じる。筐体３を閉じるには、筐体本体５の上側係止部９と蓋体７の上側係止片部１５とを係止させて、蓋体７の下側を筐体本体５側に押し込むと、下側係止凸片部１７が下側係止部１１の下側係止穴１１ｂを乗り越えて係止状態になり、蓋体７が仮止め筐体本体５に仮止めされる。なお、筐体３を閉じた後、筐体本体５と蓋体７とをねじ留めによって固定する。
以上のように、下側係止部１１は、蓋体７を吊下げるための係止部としての役割、および筐体３を閉じるための係止部としての役割の両方の役割を兼用している。 When the work is finished, the suspended lid 7 is removed and the housing 3 is closed. To close the housing 3, the upper locking portion 9 of the housing body 5 and the upper locking piece 15 of the lid body 7 are locked, and the lower side of the lid body 7 is pushed into the housing body 5 side. Then, the lower locking projection piece 17 gets over the lower locking hole 11b of the lower locking portion 11 to be locked, and the lid body 7 is temporarily fixed to the temporarily fixed housing body 5. In addition, after closing the housing | casing 3, the housing body 5 and the cover body 7 are fixed by screwing.
As described above, the lower locking portion 11 serves both as a locking portion for hanging the lid body 7 and as a locking portion for closing the housing 3. Yes.

上述したとおり、上側係止部９と上側係止片部１５とを係止させた状態で蓋体７を大きく回動させることができる（図１２（ｂ）参照）。このことは筐体３を閉じる際に作業性向上に効果がある。この点について以下に説明する。
例えば、筐体本体５にコード類が多く格納されている場合、筐体３を閉じようとすると、コード類によって蓋体７が押し返されて閉じにくいことがある。 As described above, the lid 7 can be largely rotated in a state where the upper locking portion 9 and the upper locking piece 15 are locked (see FIG. 12B). This is effective in improving workability when the housing 3 is closed. This will be described below.
For example, when many codes are stored in the casing body 5, if the casing 3 is to be closed, the lid body 7 may be pushed back by the codes and may be difficult to close.

このような場合、蓋体７があまり回動できないと、コード類を押さえつけながら上側係止部９と上側係止片部１５との係止をさせなければならず、作業性が悪くなる。
この点、本実施の形態の筐体３は、蓋体７を大きく回動させたまま上側係止部９と上側係止片部１５とを係止させることができるため、先に上側係止部９と上側係止片部１５とを係止させた後、蓋体７の下側を押さえることでコード類を押さえつけるようにして筐体３を閉じるという２段階に分けて作業を行うことができる。それ故、筐体３を閉じるのが容易であり、作業性に優れる。 In such a case, if the lid body 7 cannot rotate so much, the upper locking portion 9 and the upper locking piece portion 15 must be locked while pressing the cords, resulting in poor workability.
In this respect, the housing 3 of the present embodiment can lock the upper locking portion 9 and the upper locking piece 15 while the lid body 7 is largely rotated. After the portion 9 and the upper locking piece portion 15 are locked, the work can be performed in two steps, in which the casing 3 is closed so as to press the cords by pressing the lower side of the lid 7. it can. Therefore, it is easy to close the housing 3 and the workability is excellent.

また、蓋体７を大きく回動できないと、蓋体７を外す際に、筐体本体５と蓋体７とが近接したまま蓋体７を持ち上げなければならず、そうすると蓋体７が筐体本体５内の内蔵物に当たることがあり、蓋体７又は内蔵物の破損に繋がる虞もある。
この点、本実施の形態の筐体３は、蓋体７を大きく回動することができるので、筐体本体５から蓋体７が大きく離れた状態で蓋体７を持ち上げることができ、内蔵物等が破損する虞がない。また、このように蓋体７が内蔵物に当たらないので、蓋体７の回動可能角度が小さい場合に比べて、筐体３を小型化することができる。 If the lid 7 cannot be rotated largely, when the lid 7 is removed, the lid 7 must be lifted while the casing body 5 and the lid 7 are close to each other. There is a possibility of hitting a built-in object in the main body 5 and leading to damage to the lid 7 or the built-in object.
In this respect, the housing 3 of the present embodiment can largely rotate the lid body 7, so that the lid body 7 can be lifted in a state in which the lid body 7 is largely separated from the housing body 5, and is built-in. There is no risk of damage. In addition, since the lid body 7 does not hit the built-in object in this way, the housing 3 can be downsized as compared with the case where the pivotable angle of the lid body 7 is small.

次に、筐体本体５が凸部のある壁面などに設置される場合、筐体本体５が撓むため、これが蓋体３の仮止め状態に影響を与えることがあるので、この点について以下に説明をする。
筐体本体５が平坦な壁面Ｗに設置されている場合（図１６（ａ）参照）は、蓋体７はぴったりと筐体本体５の開口部を覆うことができるため、筐体３を閉じることに特に問題はない。 Next, when the casing body 5 is installed on a wall surface or the like having a convex portion, the casing body 5 is bent, which may affect the temporarily fixed state of the lid body 3. To explain.
When the housing body 5 is installed on a flat wall surface W (see FIG. 16A), the lid body 7 can cover the opening of the housing body 5 exactly, so the housing 3 is closed. There is no particular problem.

しかし、例えば図１６（ｂ）に示すように、筐体本体５が凸部３１を有しているような壁面Ｗに設置されている場合、筐体本体５が凸部３１によって撓んだ状態になることがある。このような場合、特許文献１のようなスライド式では、蓋体をスライドできずに閉めることができない。
この点、本実施の形態に係る筐体３は、上記のような場合でも、筐体３を閉じることができる。このことについて図１０および図１６に基づいて説明する。 However, for example, as shown in FIG. 16B, when the casing body 5 is installed on the wall surface W having the convex portions 31, the casing main body 5 is bent by the convex portions 31. May be. In such a case, in a sliding type like patent document 1, a lid cannot be slid and cannot be closed.
In this regard, the housing 3 according to the present embodiment can be closed even in the above case. This will be described with reference to FIGS. 10 and 16.

筐体本体５と蓋体７との間に隙間がない場合（図１６（ａ）参照）は、上述したとおり、図１０（ａ）に示すように筐体本体５の上側係止部９と蓋体７の上側係止片部１５の第１段部２１ａとが当接することで係止している。 When there is no gap between the casing body 5 and the lid body 7 (see FIG. 16A), as described above, as shown in FIG. The lid 7 is locked by being in contact with the first step portion 21 a of the upper locking piece 15 of the lid body 7.

他方、筐体本体５と蓋体７との間に隙間Ｓがある場合（図１６（ｂ）参照）、筐体本体５の上側係止部９と蓋体７の上側係止片部１５の位置が離れることになるが、このような場合には、図１７に示すように、筐体本体５の上側係止部９と蓋体７の上側係止片部１５の第２段部２１ｂとが当接することで係止可能になっている。
従って筐体本体５が平坦でない壁面Ｗに設置されているような場合でも、筐体３を閉じることができる。 On the other hand, when there is a gap S between the housing body 5 and the lid body 7 (see FIG. 16B), the upper locking portion 9 of the housing body 5 and the upper locking piece portion 15 of the lid body 7 In such a case, as shown in FIG. 17, the upper locking portion 9 of the housing body 5 and the second step portion 21 b of the upper locking piece portion 15 of the lid body 7 are disposed. Can be locked by contacting.
Accordingly, the housing 3 can be closed even when the housing body 5 is installed on the non-flat wall surface W.

以上のように、本実施の形態においては、蓋体７が筺体本体５の下側係止部１１に吊り下げられた状態において、バッテリー保持アーム１３が蓋体７の上方への移動規制部としての役割を担っていることにより、蓋体７を吊下げた状態で作業者の手などが蓋体７に当たって蓋体７が上方へ大きく移動することがない。それ故、一旦吊下げ状態の蓋体７の係止が解除されても、容易に吊下げ状態に戻ることができる。従って、吊下げ状態の蓋体７の落下を防止することができる。 As described above, in the present embodiment, when the lid 7 is suspended from the lower locking portion 11 of the casing body 5, the battery holding arm 13 serves as a movement restricting portion above the lid 7. As a result, the operator's hand or the like hits the lid body 7 in a state where the lid body 7 is suspended, and the lid body 7 does not move greatly upward. Therefore, even if the latching of the suspended lid 7 is released, it can easily return to the suspended state. Therefore, it is possible to prevent the suspended lid body 7 from falling.

また、上側係止片部１５のリブ２１は、基端部から先端部にかけて段部（第１段部２１ａ、第２段部２１ｂ）が形成されており、該段部は筺体３を閉じた状態において、リブ２１の基端部側が高く、先端側が低く設定されているため、筐体本体５が撓んでいても、蓋体７は第２段部２１ｂによって筐体本体５に係止することができる。従って、筐体本体５が撓んでいても、筐体３を閉じることができる。 Further, the ribs 21 of the upper locking piece 15 are formed with step portions (first step portion 21 a and second step portion 21 b) from the base end portion to the tip end portion, and the step portions close the casing 3. In the state, since the base end side of the rib 21 is set high and the tip end side is set low, the lid body 7 is locked to the case body 5 by the second step portion 21b even if the case body 5 is bent. Can do. Therefore, the housing 3 can be closed even if the housing body 5 is bent.

なお上記では、延出部は平板部１９とリブ２１とで構成されている例を説明したが、延出部の構成はこれに限られない。例えば、平板状の部位を設けることなく、延出部全体が段形状になるようにしてもよい。 In the above description, the example in which the extending portion is configured by the flat plate portion 19 and the rib 21 has been described. However, the configuration of the extending portion is not limited thereto. For example, the entire extending portion may be stepped without providing a flat portion.

また、上側係止片部１５に第１段部２１ａと第２段部２１ｂが形成される例を説明したが、段部を設ける部材は上側係止片部１５に限られず、例えば、上側係止片部１５が係止される上側係止部９の開口縁部や下側係止部１１の開口縁部に設けても良い。 Further, the example in which the first step portion 21a and the second step portion 21b are formed in the upper locking piece portion 15 has been described. However, the member provided with the step portion is not limited to the upper locking piece portion 15, and for example, You may provide in the opening edge part of the upper side latching | locking part 9 in which the stop piece part 15 is latched, and the opening edge part of the lower side latching | locking part 11. FIG.

また、上記の説明では本発明の高低差に相当するものとして、上側係止片部１５のリブ２１に基端部から先端部にかけて段部（第１段部２１ａ、第２段部２１ｂ）が形成されている例を説明したが、本発明の高低差は段形状以外であってもよい。例えば、リブ２１における蓋体７内面側において、基端側から先端側にかけて低くなるように傾斜する傾斜面を設けるようにしてもよい。こうすることで、筐体５を閉じる際に、筐体本体５の上側係止部９と蓋体７のリブ２１とが無段階に当接可能である。 Further, in the above description, as corresponding to the height difference of the present invention, the step portions (first step portion 21a, second step portion 21b) are formed on the rib 21 of the upper locking piece portion 15 from the base end portion to the tip end portion. Although the example in which it is formed has been described, the height difference of the present invention may be other than the step shape. For example, on the inner surface side of the lid body 7 in the rib 21, an inclined surface that is inclined so as to become lower from the proximal end side to the distal end side may be provided. By doing so, when closing the housing 5, the upper locking portion 9 of the housing body 5 and the rib 21 of the lid body 7 can contact steplessly.

なお、上記の説明では、上側係止部９の上側係止穴９ａと下側係止部１１の上側係止穴１１ａの大きさの関係については規定していなかったが、下側係止部１１の上側係止穴１１ａを上側係止部９の上側係止穴９ａよりも大きく設定してもよい。この場合、上側係止片部１５の横幅は、上側係止部９の上側係止穴９ａの横幅と同等か、それより小さく設定する。
こうすることによって、上側係止片部１５を下側係止部１１の上側係止穴１１ａに係止させる場合は、上側係止片部１５の大きさに対して上側係止穴１１ａが広いため係止が容易であり、それ故、蓋体７を容易に筐体本体５に吊下げることができる。
他方、上側係止片部１５を上側係止部９の上側係止穴９ａに係止させる場合は、筐体本体５に対する蓋体７の位置決めを正確に行うことができ、仮止めの精度を高くすることができる。それ故、筐体本体５と蓋体７とをねじ留めする際に作業性に優れる。 In the above description, the relationship between the size of the upper locking hole 9a of the upper locking portion 9 and the size of the upper locking hole 11a of the lower locking portion 11 has not been defined. 11 upper locking holes 11 a may be set larger than the upper locking holes 9 a of the upper locking portions 9. In this case, the lateral width of the upper locking piece 15 is set equal to or smaller than the lateral width of the upper locking hole 9 a of the upper locking portion 9.
Thus, when the upper locking piece portion 15 is locked in the upper locking hole 11a of the lower locking portion 11, the upper locking hole 11a is wider than the size of the upper locking piece portion 15. Therefore, locking is easy, and therefore the lid body 7 can be easily suspended from the housing body 5.
On the other hand, when the upper locking piece 15 is locked in the upper locking hole 9 a of the upper locking portion 9, the positioning of the lid body 7 with respect to the housing body 5 can be performed accurately, and the accuracy of temporary fixing is increased. Can be high. Therefore, it is excellent in workability when screwing the housing body 5 and the lid body 7 together.

Ｗ壁面
Ｓ隙間
１火災受信機
３筐体
５筐体本体
７蓋体
７ａ底面
９上側係止部
９ａ上側係止穴
１１下側係止部
１１ａ上側係止穴
１１ｂ下側係止穴
１３バッテリー保持アーム
１５上側係止片部
１７下側係止凸片部
１９平板部
２１リブ
２１ａ第１段部
２１ｂ第２段部
３１凸部 W Wall S Clearance 1 Fire Receiver 3 Housing 5 Housing Body 7 Lid 7a Bottom 9 Upper Locking Part 9a Upper Locking Hole 11 Lower Locking Part 11a Upper Locking Hole 11b Lower Locking Hole 13 Battery Holding Arm 15 Upper locking piece portion 17 Lower locking protruding piece portion 19 Flat plate portion 21 Rib 21a First step portion 21b Second step portion 31 Convex portion

Claims

A device for fire alarm equipment comprising a housing body composed of a bottomed frame body whose front side is open, and a lid that covers the opening of the housing body from the front side and is removable.
The housing body has a lower locking portion on the lower side, and an upper locking portion having an upper locking hole that opens on the upper side.
The lid body is composed of a bottomed frame body, and is provided on an upper side portion, and is latched on the lower side latching portion so that the lid body can be suspended on the lower side of the housing body. Part
The housing body has a movement restricting portion that restricts the lid body from moving upward in a state where the lid body is suspended from a lower side portion of the housing body .
When the lid is arranged so as to cover the opening of the housing body from the front side, the upper locking piece provided on the lid is locked in the upper locking hole of the housing body. The lid can be temporarily fixed to the housing body,
The upper locking piece has an extending portion that extends downward from an edge of the upper frame of the lid body, and a height difference is formed from the base end side to the distal end side on the inner surface side of the lid body in the extending portion. The fire alarm equipment is characterized in that the height difference is set high on the base end side and low on the front end side .

A device for fire alarm equipment comprising a housing body composed of a bottomed frame body whose front side is open, and a lid that covers the opening of the housing body from the front side and is removable.
The housing body has a lower locking portion on the lower side,
The lid body is provided on an upper side portion, and includes an upper locking piece portion that is locked to the lower side locking portion and allows the lid body to be suspended from the lower side of the housing body,
The housing body has a movement restricting portion that restricts the lid body from moving upward in a state where the lid body is suspended from a lower side portion of the housing body .
The apparatus for fire alarm equipment , wherein the movement restricting portion is constituted by a battery holding arm for holding a battery .

A device for fire alarm equipment comprising a housing body composed of a bottomed frame body whose front side is open, and a lid that covers the opening of the housing body from the front side and is removable.
The housing body has a lower locking portion having an upper locking hole in which the upper surface side is cut off and a lower locking hole in which the lower surface side is cut off in the lower side portion,
The lid includes an upper locking piece to the provided in an upper side portion engaged with the lower engaging portion the cover allows suspended on the lower side of the housing body, provided in the lower side portion A lower locking convex piece,
The housing body has a movement restricting portion that restricts the lid body from moving upward in a state where the lid body is suspended from a lower side portion of the housing body.
When the lid is suspended from the lower side of the housing body, the upper locking piece is locked to the upper locking hole of the lower locking portion so as to cover the opening of the housing body. A device for fire alarm equipment, wherein the lower locking convex piece portion is locked in a lower locking hole of the lower locking portion when the casing main body is covered .