JP2004152013A - Fire indicator - Google Patents

Fire indicator Download PDF

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Publication number
JP2004152013A
JP2004152013A JP2002316488A JP2002316488A JP2004152013A JP 2004152013 A JP2004152013 A JP 2004152013A JP 2002316488 A JP2002316488 A JP 2002316488A JP 2002316488 A JP2002316488 A JP 2002316488A JP 2004152013 A JP2004152013 A JP 2004152013A
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Japan
Prior art keywords
light
housing
led
light emitting
front opening
Prior art date
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Pending
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JP2002316488A
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Japanese (ja)
Inventor
Akio Okada
昭雄 岡田
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Nohmi Bosai Ltd
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Nohmi Bosai Ltd
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Priority to JP2002316488A priority Critical patent/JP2004152013A/en
Publication of JP2004152013A publication Critical patent/JP2004152013A/en
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  • Fire Alarms (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To enable quick confirmation of the lighting of an indicator lamp from a place other than the front, in a fire indicator enabling the visual confirmation of the operation of a fire sensor out of a dwelling house, and to prevent the breakage of the indicator lamp. <P>SOLUTION: This fire indicator has a casing mounted on a mounting surface out of the dwelling house; a front opening part provided on the front of the casing; a housing part raised in the backward direction of the casing from the front opening part and formed in a tapered shape; a light emitting means provided in the housing part; and a display window mounted exposing to the front opening part, which disperses and releases the light from the light emitting means forward and sideward out of the casing. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
この発明は、住居外で火災感知器の作動を視認できる火災表示器に関する。
【0002】
【従来の技術】
一般に、集合住宅等において、どの住居の火災感知器が作動しているかを住居外から容易に発見できるようにするため、住居の玄関口近傍等の外壁に取り付けられる火災表示器が知られている(例えば、特許文献1参照。)。
【0003】
【特許文献1】
実開昭55−134689号公報
【0004】
【発明が解決しようとする課題】
上記火災表示器は、本体に表示灯が設けられ、扉に透光性の表示カバーが露出して設けられ、表示灯は表示カバー内に位置している。そのため、表示灯は、表示カバーの前面のみならず側面にも発光することができる。しかしながら、表示灯の光は、多少は側方方向(上下左右方向)に漏れるとしても、そのほとんどが前方方向に集中して放出するように設計されているため、表示カバーの側面への発光は非常に少なくなる。そのため、住居内の火災感知器が発報した場合、火災表示器の正面まで来ないと表示灯の点灯が明確に確認しにくく、正面以外のところから表示灯の点灯が確認しにくいという問題があった。特に、集合住宅の各住居玄関にそれぞれ取り付けられた場合など、多数の火災表示器が隣接して設置してある場合については、住居玄関前の狭い共用通路から表示灯の点灯を確認することになるため、通路に面した住居の全ての火災表示器を一度に確認するような場合には火災表示器を正面よりかなりはずれた斜め方向から目視することになり、発報状態の火災表示器を遠くから確認しにくいという問題も生じる。
【0005】
また、表示カバーは扉から露出して設けられているため、外部からの衝撃が加わりやすく、この衝撃により破損すると、表示灯も破損しやすいという問題があった。
【0006】
本発明は、上記課題を解決するためになされたもので、住居外で火災感知器の作動を視認できる火災表示器に関するものであり、表示灯の点灯を正面以外の場所からでも素早く確認することができること、また、表示灯の破損を防止することを目的とする。
【0007】
【課題を解決するための手段】
本発明は、住居外の取付面に取り付けられる筐体と、該筐体の前面に設けられた前面開口部と、該前面開口部から筐体の背面方向に立設されてテーパ状に形成された収納部と、該収納部内に設けられた発光手段と、前面開口部に露出して取り付けられ、発光手段からの光を前方および側方方向に光拡散して筐体外部に放出する表示窓を備えたことを特徴とする。
【0008】
また、発光手段は、該発光手段のリード端子が高さ調整手段内を挿通されて、筐体の内部に収容された回路基板に取付固定されることで、収納部内に位置するように設けられることを特徴とする。
【0009】
【実施例】
本発明の第1実施例を図1〜図8に基づいて説明する。図1は火災表示器の概略正面図であり、図2は火災表示器の概略平面図であり、図3は火災表示器の概略右側面図であり、図4は火災表示器の概略背面図であり、図5は図1のA−A線概略断面図であり、火災表示器を壁面に取り付けた状態を示し、図6は図1のB−B線概略断面図であり、図7は表示窓の概略背面図であり、また、図8は図7の概略断面図である。
【0010】
火災表示器100は、住居外の取付面の一例としての壁面1(図5参照)に取り付けられる筐体10と、該筐体10の前面に設けられた前面開口部14と、該前面開口部14から筐体10の背面方向に立設されてテーパ状に形成された収納部15と、該収納部15内に設けられた発光手段の一例としてのLED20と、前面開口部14に露出して取り付けられ、LED20からの光を前方および側方方向に光拡散して筐体10外部に放出する表示窓30を備えている。
【0011】
筐体10は、本体11と、本体11の外周に設けられた枠体12と、該枠体12に開閉自在に取り付けられる扉13とを備えている。
【0012】
本体11は、樹脂等により前面側および背面側を開口した略箱型に形成され、その前面側の開口から外周方向(上下左右方向)に延出された枠体12を備えている。枠体12は、樹脂等により略鍔状に形成され、扉13を開閉自在に取り付けるための扉取付部12Aと、該枠体12自身を壁面1に設けられたアウトレットボックス2に固着するための枠体取付部(図示せず)と、扉13を閉止するためのネジ受け部(図示せず)が設けられている。
【0013】
また、本体11の内部には、回路基板40が収容されている。この回路基板40は、本体11の背面内面に設けられた段部に当接してネジ止め等の固定手段により取付固定されており、この回路基板40の背面側には、住居内に設けられた火災感知器からの信号線等のケーブルを結線するための端子板(図示せず)が取付固定されており、また、この回路基板40の前面側には、火災感知器が作動すると点灯するLED20が取付固定されている。
【0014】
このLED20は、扉13に設けられた収納部15内に位置するように、回路基板40に取付固定されている。この場合、LED20の回路基板40からの突出する高さを規定する高さ調整手段の一例であるチューブ25を使用して、LED20のリード端子21がチューブ25内を挿通されて、半田付け等により回路基板40に取付固定されることで、LED20は扉13に設けられた収納部15内に位置している。このチューブ25は、樹脂等によりLED20の外径よりも小さい外径の略円筒状に形成されており、LED20の背面と回路基板40の前面とに当接して、その間隔を規定している。
【0015】
扉13は、樹脂等により背面側を開口した略箱型に形成され、この扉13の右上端部および右下端部には、枠体12の扉取付部12Aに係合するヒンジ13Aが一体に設けられている。これにより、扉13は枠体12の内側に、本体11の前面側を開閉自在に取り付けられる。また、扉13左中央部にネジ孔(図示せず)が形成されており、このネジ孔(図示せず)にネジ(図示せず)を挿入し、枠体12のネジ受け部(図示せず)に螺合することにより、扉13を閉止することができる。
【0016】
また、扉13には、本体11内のLED20に対向する部分に表示窓30が取り付けられる略長方形状の前面開口部14が設けられており、また、前面開口部14から筐体10の背面方向に立設された収納部15が設けられている。この収納部15は、図5に示すように、前面開口部14の上側開口縁および下側開口縁から筐体10の背面方向に略垂直に立設された上側面15Uおよび下側面15Dと、図6に示すように、前面開口部14の左側開口縁および右側開口縁から筐体10の背面方向であって前面開口部14の中心方向に略テーパ状に立設された左側面15Lおよび右側面15Rとにより形成され、前面側および背面側を開口した略斬頭四角錐状であり、この収納部15内にはLED20が位置している。
【0017】
この収納部15は、LED20の放出光を前面開口部14側に誘導するものであり、LED20からの側方方向(上下左右方向)の放出光は、それぞれ収納部15の上下左右側面に入反射して、前面開口部14側に導かれる。
【0018】
ここで、LED20からの放出光は、そのほとんどが前方方向に集中して放出するように設計されているが、多少は側方方向に放出される。LEDの様々な種類により多少の違いはあるが、最大で前方に対して180゜方向まで放出される。そのため、収納部15の左右方向をテーパ状とすることで、テーパ状としない場合と比較して、LED20の左右方向からの放出光が、収納部15の左側面15Lおよび右側面15Rとにより入反射する回数を少なくして、減衰の少ない光量で前面開口部14側に導かれ、前面開口部14側に直接放出される前方方向からの放出光のみならず、多量の放出光を前面開口部14側に導くことができる。
【0019】
なお、収納部15の上側面15Uおよび下側面15Dも、前面開口部14の上側開口縁および下側開口縁から筐体10の背面方向であって前面開口部14の中心方向に略テーパ状に立設してもよく、収納部15の上下方向もテーパ状とすることで、LED20の側方方向(上下左右方向)からの放出光を、収納部15の上下左右側面で入反射させて、減衰の少ない光量で前面開口部14側に導くことができ、より多量の放出光を前面開口部14側に導くことができる。
【0020】
表示窓30は、図7および図8に示すように前面30Fと左側面30Lと右側面30Rと上側面30Uと下側面30Dとを備え、透光性を有する樹脂により背面側を開口した略斬頭四角錐状に形成される。また上側面30Uおよび下側面30Dから延出形成された断面略フック状の係止部30Aを備え、この係止部30Aが収納部15の上側面15Uおよび下側面15Dの背面側に係止して、前面開口部14に露出して取り付けられ、図3に示すように表示窓30は、筐体10を側面方向から見て十分に見える程度に筐体10の前面から突出する。この表示窓30の内面全面には、光を拡散するための光拡散手段31が設けてあり、光拡散手段31としてこの場合は、上側面30Uと下側面30Dと左側面30Lおよび右側面30Rのそれぞれの内面には断面略山形状の縦溝31Aが形成され、前面30Fの内面には略山形状の凹凸部31Bが形成されている。収納部15により前面開口部14(表示窓30)に誘導されたLED20の放出光は、光拡散手段31により前方、側方方向(上下左右方向)、斜め方向等の四方八方に拡散して表示窓30を透過し、筐体10外部に放出される。これにより発報表示がなされ、LED20から放出する点灯光が発報表示として住居外の人に光により住居内の非常状態を知らせる。
【0021】
なお、光拡散手段31として、表示窓30の内面全面に設けられた複数段状やフルネルレンズ状の光拡散手段や、表示窓30に配合された例えばシリカ等の拡散性微粒子であってもよい。また、光拡散手段31を前方、横(左右)方向のみに設けて、光が前方、横(左右)方向にのみ拡散するように構成してもよい。
【0022】
次に、火災表示器100の組立方法を説明する。まず、端子板(図示せず)を回路基板40の背面側に半田付け等により接続固定し、また、チューブ25内にLED20のリード端子21を挿通し、チューブ25をLED20の背面と回路基板40の前面とに当接させ、LED20を回路基板40の前面側に半田付け等により接続固定する。次に、回路基板40をネジ等の固定手段(図示せず)により本体11の背面内面の段部に当接させ固定する。そして、表示窓30の係止部30Aを扉13の前面開口部14内に挿通して収納部15の上側面15Uおよび下側面15Dの背面側に係止させて、表示窓30を扉13に取り付ける。さらに、扉13のヒンジ13Aを枠体12の扉取付部12Aに圧入して、扉13を枠体12に開閉自在に取り付ける。
【0023】
このようにして組み立てられた火災表示器100を、本体11の背面側にある端子板(図示せず)に、住居内からアウトレットボックス2内に導出された信号線等のケーブルを接続して、そして図5に示すように、枠体12の枠体取付部(図示せず)にネジを挿通し、アウトレットボックス2にネジ止めして壁面1に取り付け、ついで、扉13のネジ孔(図示せず)にネジ(図示せず)を挿入して、枠体12のネジ受け部(図示せず)でネジ止めして、閉扉する。
【0024】
上記構成の火災表示器100は、住居内の火災感知器からの火災信号を受けると、LED20が点灯する。LED20の光は、前方へ放出された光が直接表示窓30に到達して、また、側方へ放出された光が収納部15により表示窓30に誘導されて、光拡散手段31により前方、側方方向(上下左右方向)、斜め方向等の四方八方に拡散して表示窓30を透過し、筐体10外部に放出される。これにより発報表示がなされ、LED20から放出する点灯光が発報表示として住居外の人に光により住居内の非常状態を知らせる。
【0025】
かかる火災表示器100にあっては、LED20を収納部15内に位置させるのに、LED20のリード端子21をチューブ25内に挿通して、LED20を回路基板40に取付固定して、回路基板40を本体11の背面内面にネジ止めにて取付固定したので、簡易な構成でLED20を収納部15内に位置させることができ、表示窓30に近い位置にLED20を配設することで、発報表示の光を明るく点灯することができる。また、筐体11から露出した表示窓30が外部衝撃等により破損したとしても、LED20は表示窓30内に位置していないのでその衝撃の影響を受けにくく、仮に受けたとしても、LED20と回路基板40は直接当接して接続固定されておらずリード端子21を介して接続固定されているため、LED20の弾性を有するリード端子21がその衝撃を吸収する役目を果たすので、破損しにくい。
【0026】
また、表示窓30の内面全面に光拡散手段31を設けることにより、発報表示となるLED20の光を、前方だけでなく側方方向(上下左右方向)、斜め方向にも拡散放出するようにしたので、横(左右)方向や上下方向や斜め方向からも光が明確に確認でき、集合住宅の共用通路のような場所からでも発報している火災表示器100を遠くから素早く確認することができると共に、火災表示器100を人の目線よりやや高い位置や低い位置に設置したとしてもどの方向からでも明確に警報表示の光を確認できる。また、収納部15によりLED20の光を表示窓30に集中させることができ、特に収納部15をテーパ状とすることで、LED20の側方方向からの放出光を減衰の少ない光量で表示窓30に誘導することができ、LED20のような小光源の発光手段の光でも十分明るい状態で拡散放出して点灯光が見た目に目立つようにすることができる。
【0027】
なお、収納部のテーパ状の面にメッキ塗装等を施すなどして、光の反射効率を上げるようにしてもよい。
【0028】
【発明の効果】
発光手段はテーパ状に形成された収納部内に設けられるので、発光手段の前方方向の光のみならず、発光手段の側方方向の光も減衰の少ない光量で表示窓に誘導され、表示窓に到達する全体の光量が増加する。また、表示窓の光拡散手段により、表示窓に放出された光を前方および側方(上下左右)方向に光拡散する。そのため、発光手段の点灯を正面以外の場所からでも素早く確認することができる。
【0029】
また、発光手段は、該発光手段のリード端子が高さ調整手段内を挿通されて、筐体内に収容された回路基板に取付固定されることで、収納部内に位置する。そのため、簡易な構成で発光素子を収納部内に位置決めすることができる。また、発光手段に外部からの衝撃が加わりにくく発光手段の破損を防止するとともに、発光手段に外部からの衝撃が加わったとしても、リード端子の弾性によりその衝撃を吸収して、発光手段の破損を防止することができる。
【図面の簡単な説明】
【図1】本発明の第1実施例を示す、火災表示器の概略正面図である。
【図2】火災表示器の概略平面図である。
【図3】火災表示器の概略右側面図である。
【図4】火災表示器の概略背面図である。
【図5】図1のA−A線概略断面図であり、火災表示器を壁面に取り付けた状態を示す図である。
【図6】図1のB−B線概略断面図である。
【図7】表示窓の概略背面図である。
【図8】図7の概略断面図である。
【符号の説明】
10 筐体
14 前面開口部
15 収納部
20 LED(発光手段)
30 表示窓
100 火災表示器
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a fire indicator that can visually recognize the operation of a fire detector outside a house.
[0002]
[Prior art]
2. Description of the Related Art In general, in an apartment house, a fire indicator mounted on an outer wall such as near an entrance of a house is known in order to easily find out which house a fire detector is activated from outside the house. (For example, refer to Patent Document 1).
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 55-134689
[Problems to be solved by the invention]
In the fire indicator, an indicator light is provided on the main body, a translucent display cover is exposed on the door, and the indicator light is located inside the display cover. Therefore, the indicator light can emit light not only on the front surface but also on the side surface of the display cover. However, even if the light of the indicator light leaks slightly in the lateral direction (up, down, left and right directions), most of the light is designed to be concentrated and emitted in the forward direction. Very low. Therefore, when a fire detector in a house issues a warning, it is difficult to clearly see the lighting of the indicator light unless it comes to the front of the fire indicator, and it is difficult to confirm the lighting of the indicator light from a place other than the front. there were. In particular, when a large number of fire indicators are installed adjacent to each other, such as when installed at each residential entrance of an apartment house, we will check the lighting of the indicator light from the narrow common passage in front of the residential entrance. Therefore, if you want to check all the fire indicators of the residence facing the passage at once, you will need to look at the fire indicators from an oblique direction that is considerably off the front, and display the fire indicator in the alert state. There is also a problem that it is difficult to confirm from a distance.
[0005]
In addition, since the display cover is provided so as to be exposed from the door, there is a problem that an external impact is likely to be applied, and if the display cover is damaged by the impact, the indicator lamp is also easily damaged.
[0006]
The present invention has been made in order to solve the above-mentioned problems, and relates to a fire indicator that can visually recognize the operation of a fire detector outside a house, and to quickly check the lighting of an indicator light from a place other than the front. And to prevent the indicator lamp from being damaged.
[0007]
[Means for Solving the Problems]
The present invention provides a housing attached to a mounting surface outside a house, a front opening provided on a front surface of the housing, and a tapered shape which is erected from the front opening toward the rear of the housing. Storage portion, a light emitting means provided in the storage portion, and a display window which is attached to the front opening so as to be exposed and diffuses light from the light emitting portion in the forward and side directions and emits the light to the outside of the housing. It is characterized by having.
[0008]
Further, the light emitting means is provided so as to be located in the housing portion by the lead terminal of the light emitting means being inserted through the height adjusting means and being attached and fixed to a circuit board housed inside the housing. It is characterized by the following.
[0009]
【Example】
First Embodiment A first embodiment of the present invention will be described with reference to FIGS. 1 is a schematic front view of the fire indicator, FIG. 2 is a schematic plan view of the fire indicator, FIG. 3 is a schematic right side view of the fire indicator, and FIG. 4 is a schematic rear view of the fire indicator. 5 is a schematic sectional view taken along the line AA of FIG. 1, showing a state where the fire indicator is attached to the wall surface, FIG. 6 is a schematic sectional view taken along the line BB of FIG. 1, and FIG. FIG. 8 is a schematic rear view of the display window, and FIG. 8 is a schematic sectional view of FIG.
[0010]
The fire indicator 100 includes a housing 10 mounted on a wall 1 (see FIG. 5) as an example of a mounting surface outside the house, a front opening 14 provided on a front surface of the housing 10, and a front opening. A storage portion 15 erected from the front side of the housing 10 in the rear direction and formed in a tapered shape, an LED 20 as an example of light emitting means provided in the storage portion 15, and exposed to the front opening portion 14. There is provided a display window 30 that is attached and diffuses light from the LED 20 in the forward and side directions and emits the light to the outside of the housing 10.
[0011]
The housing 10 includes a main body 11, a frame 12 provided on the outer periphery of the main body 11, and a door 13 that is attached to the frame 12 so as to be openable and closable.
[0012]
The main body 11 is formed in a substantially box shape with a front side and a back side opened by a resin or the like, and includes a frame body 12 extending from the opening on the front side in the outer peripheral direction (up, down, left and right directions). The frame body 12 is formed in a substantially flange shape by resin or the like, and is used for fixing the door body 13 to the outlet box 2 provided on the wall surface 1 and a door mounting portion 12A for mounting the door 13 to be openable and closable. A frame mounting portion (not shown) and a screw receiving portion (not shown) for closing the door 13 are provided.
[0013]
Further, a circuit board 40 is housed inside the main body 11. The circuit board 40 is attached and fixed by a fixing means such as a screw in contact with a step provided on the inner surface of the rear surface of the main body 11, and is provided in the house on the rear side of the circuit board 40. A terminal plate (not shown) for connecting a cable such as a signal line from the fire detector is attached and fixed. An LED 20 which is turned on when the fire detector operates is provided on the front side of the circuit board 40. Is fixedly mounted.
[0014]
The LED 20 is attached and fixed to the circuit board 40 so as to be located in the storage section 15 provided on the door 13. In this case, the lead terminal 21 of the LED 20 is inserted through the inside of the tube 25 using a tube 25 which is an example of height adjusting means for defining the height of the LED 20 protruding from the circuit board 40, and is soldered or the like. By being fixedly attached to the circuit board 40, the LED 20 is located in the storage section 15 provided in the door 13. The tube 25 is formed of a resin or the like into a substantially cylindrical shape having an outer diameter smaller than the outer diameter of the LED 20, and abuts on the rear surface of the LED 20 and the front surface of the circuit board 40 to define the interval therebetween.
[0015]
The door 13 is formed in a substantially box shape with a back side opened by a resin or the like, and a hinge 13A that engages with the door mounting portion 12A of the frame 12 is integrally formed at the upper right end and the lower right end of the door 13. Is provided. Thereby, the door 13 is attached to the inside of the frame body 12 so that the front side of the main body 11 can be opened and closed. Further, a screw hole (not shown) is formed in the left central portion of the door 13, and a screw (not shown) is inserted into the screw hole (not shown), and a screw receiving portion (not shown) of the frame 12 is formed. Screw 13), the door 13 can be closed.
[0016]
The door 13 is provided with a substantially rectangular front opening 14 to which a display window 30 is attached at a portion facing the LED 20 in the main body 11. The storage unit 15 is provided upright. As shown in FIG. 5, the storage portion 15 includes an upper side surface 15U and a lower side surface 15D that are erected substantially vertically from the upper opening edge and the lower opening edge of the front opening portion 14 to the rear direction of the housing 10, As shown in FIG. 6, a left side surface 15 </ b> L and a right side that are erected from the left opening edge and the right opening edge of the front opening 14 in the rear direction of the housing 10 and substantially in the center direction of the front opening 14. The front surface and the back surface are formed in a substantially truncated quadrangular pyramid shape. The LED 20 is located in the storage portion 15.
[0017]
The storage section 15 guides the emission light of the LED 20 toward the front opening 14, and the emission light in the lateral direction (up, down, left, and right directions) from the LED 20 enters and reflects on the upper, lower, left, and right side surfaces of the storage section 15, respectively. Then, it is guided to the front opening 14 side.
[0018]
Here, most of the emission light from the LED 20 is designed to be emitted in a concentrated manner in the forward direction, but is emitted somewhat in the lateral direction. The LED is emitted up to 180 ° with respect to the front, although there are some differences depending on various types of the LED. Therefore, by making the left-right direction of the storage section 15 tapered, compared with the case where the storage section 15 is not tapered, the emitted light from the left-right direction of the LED 20 enters the left side face 15L and the right side face 15R of the storage section 15. By reducing the number of times of reflection, the light is guided toward the front opening 14 with a small amount of light and is emitted not only to the front opening 14 from the front but also a large amount of emitted light. 14 side.
[0019]
The upper side surface 15U and the lower side surface 15D of the storage portion 15 are also substantially tapered from the upper opening edge and the lower opening edge of the front opening portion 14 toward the back of the housing 10 and toward the center of the front opening 14. The up-down direction of the storage section 15 may also be tapered, so that the emitted light from the lateral direction (up, down, left, and right directions) of the LED 20 is reflected by the up, down, left, and right side surfaces of the storage section 15, It is possible to guide the light to the front opening 14 with a small amount of light, and to guide a larger amount of emitted light to the front opening 14.
[0020]
As shown in FIGS. 7 and 8, the display window 30 includes a front surface 30F, a left side surface 30L, a right side surface 30R, an upper side surface 30U, and a lower side surface 30D. It is formed in a quadrangular pyramid shape. Further, a locking portion 30A having a substantially hook-shaped cross section is formed to extend from the upper side surface 30U and the lower side surface 30D. The display window 30 protrudes from the front surface of the housing 10 such that the display window 30 is sufficiently visible when viewed from the side as shown in FIG. Light diffusing means 31 for diffusing light is provided on the entire inner surface of the display window 30. In this case, the light diffusing means 31 includes an upper side surface 30U, a lower side surface 30D, a left side surface 30L, and a right side surface 30R. A vertical groove 31A having a substantially mountain-shaped cross section is formed on each inner surface, and a substantially mountain-shaped uneven portion 31B is formed on the inner surface of the front surface 30F. The emitted light of the LED 20 guided to the front opening 14 (display window 30) by the storage unit 15 is diffused and displayed in the front, side directions (up, down, left and right directions), oblique directions, etc. by the light diffusion unit 31. The light passes through the window 30 and is emitted to the outside of the housing 10. As a result, a warning display is made, and the lighting light emitted from the LED 20 informs a person outside the house of an emergency state in the house by light as a warning display.
[0021]
The light diffusing means 31 may be a light diffusing means in the form of a plurality of steps or a Fresnel lens provided on the entire inner surface of the display window 30, or diffusing fine particles such as silica mixed in the display window 30. Good. Alternatively, the light diffusing means 31 may be provided only in the forward and lateral (left and right) directions so that light is diffused only in the forward and lateral (left and right) directions.
[0022]
Next, a method of assembling the fire indicator 100 will be described. First, a terminal plate (not shown) is connected and fixed to the back side of the circuit board 40 by soldering or the like, and the lead terminal 21 of the LED 20 is inserted into the tube 25 so that the tube 25 is connected to the back surface of the LED 20 and the circuit board 40. The LED 20 is connected and fixed to the front side of the circuit board 40 by soldering or the like. Next, the circuit board 40 is fixed to the step portion on the inner surface of the rear surface of the main body 11 by fixing means (not shown) such as screws. Then, the locking portion 30 </ b> A of the display window 30 is inserted into the front opening 14 of the door 13 and locked on the back side of the upper side surface 15 </ b> U and the lower side surface 15 </ b> D of the storage portion 15. Attach. Further, the hinge 13A of the door 13 is pressed into the door mounting portion 12A of the frame 12, and the door 13 is mounted on the frame 12 so as to be freely opened and closed.
[0023]
The fire indicator 100 thus assembled is connected to a terminal plate (not shown) on the rear side of the main body 11 by connecting a cable such as a signal line led out of the house into the outlet box 2, Then, as shown in FIG. 5, a screw is inserted through a frame body mounting portion (not shown) of the frame body 12, screwed to the outlet box 2 and mounted on the wall surface 1, and then a screw hole (not shown) of the door 13 is formed. Screw) (not shown), and screwed in a screw receiving portion (not shown) of the frame 12 to close the door.
[0024]
When the fire indicator 100 having the above configuration receives a fire signal from a fire detector in a house, the LED 20 lights up. The light emitted from the LED 20 is such that the light emitted forward reaches the display window 30 directly, and the light emitted laterally is guided to the display window 30 by the storage unit 15. The light is diffused in all directions, such as lateral directions (up, down, left and right directions) and oblique directions, passes through the display window 30, and is emitted to the outside of the housing 10. As a result, a warning display is made, and the lighting light emitted from the LED 20 informs a person outside the house of an emergency state in the house by light as a warning display.
[0025]
In such a fire indicator 100, in order to position the LED 20 in the storage section 15, the lead terminal 21 of the LED 20 is inserted into the tube 25, and the LED 20 is attached and fixed to the circuit board 40. Is fixed to the inner surface of the back surface of the main body 11 with screws, so that the LED 20 can be positioned in the storage section 15 with a simple configuration, and the LED 20 is arranged at a position close to the display window 30 to generate an alarm. The display light can be turned on brightly. Further, even if the display window 30 exposed from the housing 11 is damaged by an external impact or the like, the LED 20 is not located in the display window 30 and thus is hardly affected by the impact. Since the substrate 40 is not directly connected and fixed but connected and fixed via the lead terminal 21, the lead terminal 21 having elasticity of the LED 20 plays a role of absorbing the shock, and therefore is not easily damaged.
[0026]
Further, by providing the light diffusing means 31 on the entire inner surface of the display window 30, the light of the LED 20 serving as the alarm display is diffused and emitted not only in the front but also in the lateral direction (up, down, left and right directions) and obliquely. As a result, you can clearly see the light from the horizontal (horizontal) direction, the vertical direction, and the diagonal direction, and quickly check the fire indicator 100 that is alerting from a place such as a common passage in an apartment complex from a distance Even if the fire indicator 100 is installed at a position slightly higher or lower than the line of sight of the person, the light of the alarm display can be clearly confirmed from any direction. In addition, the light of the LED 20 can be concentrated on the display window 30 by the storage portion 15, and in particular, by making the storage portion 15 tapered, the emission light from the lateral direction of the LED 20 can be reduced by the light amount of the display window 30 with little attenuation. The light from the light emitting means of the small light source such as the LED 20 can be diffused and emitted in a sufficiently bright state, so that the lighting light can be visually conspicuous.
[0027]
The light reflection efficiency may be increased by applying plating or the like to the tapered surface of the storage section.
[0028]
【The invention's effect】
Since the light emitting means is provided in the tapered storage portion, not only light in the forward direction of the light emitting means but also light in the lateral direction of the light emitting means is guided to the display window with a small amount of attenuation, and the light is transmitted to the display window. The total amount of light that reaches is increased. Further, the light emitted to the display window is diffused forward and sideways (up, down, left and right) by the light diffusing means of the display window. Therefore, the lighting of the light emitting means can be quickly confirmed even from a place other than the front.
[0029]
Further, the light emitting means is located in the housing portion by the lead terminal of the light emitting means being inserted through the height adjusting means and being attached and fixed to the circuit board housed in the housing. Therefore, the light emitting element can be positioned in the storage section with a simple configuration. In addition, it is difficult for an external impact to be applied to the light emitting means to prevent the light emitting means from being damaged, and even if an external impact is applied to the light emitting means, the elasticity of the lead terminals absorbs the impact, thereby damaging the light emitting means. Can be prevented.
[Brief description of the drawings]
FIG. 1 is a schematic front view of a fire indicator according to a first embodiment of the present invention.
FIG. 2 is a schematic plan view of a fire indicator.
FIG. 3 is a schematic right side view of the fire indicator.
FIG. 4 is a schematic rear view of the fire indicator.
FIG. 5 is a schematic cross-sectional view taken along line AA of FIG. 1, showing a fire indicator mounted on a wall surface.
FIG. 6 is a schematic sectional view taken along line BB of FIG. 1;
FIG. 7 is a schematic rear view of the display window.
FIG. 8 is a schematic sectional view of FIG. 7;
[Explanation of symbols]
10 Housing 14 Front opening 15 Storage unit 20 LED (light emitting means)
30 display window 100 fire indicator

Claims (2)

住居外の取付面に取り付けられる筐体と、該筐体の前面に設けられた前面開口部と、該前面開口部から前記筐体の背面方向に立設されてテーパ状に形成された収納部と、該収納部内に設けられた発光手段と、前記前面開口部に露出して取り付けられ、前記発光手段からの光を前方および側方方向に光拡散して前記筐体外部に放出する表示窓を備えたことを特徴とする火災表示器。A housing attached to a mounting surface outside the house, a front opening provided in a front surface of the housing, and a tapered storage portion erected from the front opening in a rear direction of the housing. And a light emitting means provided in the housing portion, and a display window which is attached to the front opening so as to be exposed and diffuses light from the light emitting means in forward and side directions and emits the light to the outside of the housing. A fire indicator comprising: 前記発光手段は、該発光手段のリード端子が高さ調整手段内を挿通されて、前記筐体の内部に収容された回路基板に取付固定されることで、前記収納部内に位置するように設けられることを特徴とする請求項1記載の火災表示器。The light emitting means is provided so as to be located in the housing part by a lead terminal of the light emitting means being inserted through the height adjusting means and being attached and fixed to a circuit board housed inside the housing. The fire indicator according to claim 1, wherein the fire indicator is provided.
JP2002316488A 2002-10-30 2002-10-30 Fire indicator Pending JP2004152013A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002316488A JP2004152013A (en) 2002-10-30 2002-10-30 Fire indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002316488A JP2004152013A (en) 2002-10-30 2002-10-30 Fire indicator

Publications (1)

Publication Number Publication Date
JP2004152013A true JP2004152013A (en) 2004-05-27

Family

ID=32460182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002316488A Pending JP2004152013A (en) 2002-10-30 2002-10-30 Fire indicator

Country Status (1)

Country Link
JP (1) JP2004152013A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005018174A (en) * 2003-06-23 2005-01-20 Yazaki Corp Gas leak alarm

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005018174A (en) * 2003-06-23 2005-01-20 Yazaki Corp Gas leak alarm

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