JPH0434442Y2 - - Google Patents
Info
- Publication number
- JPH0434442Y2 JPH0434442Y2 JP1985111991U JP11199185U JPH0434442Y2 JP H0434442 Y2 JPH0434442 Y2 JP H0434442Y2 JP 1985111991 U JP1985111991 U JP 1985111991U JP 11199185 U JP11199185 U JP 11199185U JP H0434442 Y2 JPH0434442 Y2 JP H0434442Y2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- base
- shield plate
- smoke detector
- mounting structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000779 smoke Substances 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000007591 painting process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
- G08B17/113—Constructional details
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は、散乱光式或いは、減光式の光電式煙
感知器に関するもので、更に述べると、光電式煙
感知器のフレーム取付構造に関するものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a scattered light type or dimming type photoelectric smoke detector, and more specifically, to a frame mounting structure for a photoelectric smoke detector. be.
従来の技術
光電式煙感知器には煙が暗箱内に侵入した時に
発光部の光線が煙に散乱されて受光部に入る散乱
光式と、煙が暗箱内に侵入すると発光部の光線が
煙に遮断されて受光部に入らなくなる減光式とが
ある。これらの感知器には、発光部と受光部を有
するフレームと外来ノイズなどを遮蔽するシール
ド板が設けられているが、このフレームは暗箱の
上面をなすシールド板を挟持して基台にねじ止め
されている。Conventional technology There are two types of photoelectric smoke detectors: one is a scattered light type in which when smoke enters the dark box, the light from the light emitting part is scattered by the smoke and enters the light receiving part; There is a dimming type that blocks the light from entering the light receiving section. These sensors are equipped with a frame that has a light emitting part and a light receiving part, and a shield plate that blocks out external noise.The frame is screwed to the base with the shield plate that forms the top surface of the dark box in between has been done.
考案が解決しようとする問題点
従来例では、フレームおよびシールド板は、ね
じにより基台に固定するので、組立が面倒で時間
がかかり、作業性が悪い。Problems to be Solved by the Invention In the conventional example, the frame and shield plate are fixed to the base with screws, so assembly is troublesome and time-consuming, and workability is poor.
又、暗箱の上面板として使用されるシールド板
は、その機能上金属板が用いられるが、フレーム
より大きく形成されているので、フレームに覆わ
れない部分が存在し、その部分は、光を反射させ
る。 In addition, the shield plate used as the top plate of the dark box is a metal plate due to its function, but since it is larger than the frame, there is a part that is not covered by the frame, and that part reflects light. let
そこで、この光の反射作用を防止するため、シ
ールド板に光吸収用の黒色塗装を施す必要がある
ので、作業の工程や時間が多くなる。 Therefore, in order to prevent this light reflection effect, it is necessary to apply a light-absorbing black coating to the shield plate, which increases the number of work steps and time.
本考案は以上の事情に鑑み、簡単かつ迅速に組
立を行なうと共に、作業工程を減らし、作業性の
向上を図ることを目的とする。 In view of the above circumstances, it is an object of the present invention to perform assembly easily and quickly, reduce the number of work steps, and improve workability.
問題点を解決するための手段
本考案は、発光部と受光部を有するフレーム
と、該フレームと基台とにより挟持されているシ
ールド板と、該フレームと該基台とに設けられた
係合手段と、を備えた光電式煙感知器であつて、
フレームは、シールドケース板全体を覆う鍔を備
えていることを特徴とする光電式感知器のフレー
ム取付構造である。Means for Solving the Problems The present invention includes a frame having a light emitting part and a light receiving part, a shield plate held between the frame and the base, and an engagement plate provided between the frame and the base. A photoelectric smoke detector comprising:
The frame is a frame mounting structure for a photoelectric sensor characterized by having a flange that covers the entire shield case plate.
作 用
基台にシールド板を載置した後、シールド板に
フレームを重ねると、基台の鉤部が、フレームの
段部に係止し、両者はシールド板を挟んだ状態で
固定されると共に、シールド板全体は、フレーム
により完全に覆われる。Function After placing the shield plate on the base, when the frame is stacked on the shield plate, the hook part of the base will lock onto the stepped part of the frame, and the two will be fixed with the shield plate sandwiched between them. , the entire shield plate is completely covered by the frame.
実施例
以下本考案の一実施例を添附図面により説明す
る。Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.
第１図において１は、光電式煙感知器で、散乱
光式煙感知器である。２は、シールドケース３と
プリント板４を内蔵する基台で、第１図、第２図
に示す様に、発光素子や受光素子の端子を収容す
る収納部５と、暗箱６の鉤状部を係止せしめる係
合穴７と、対向する二本の係合片８が設けられて
いる。 In FIG. 1, 1 is a photoelectric type smoke detector, which is a scattered light type smoke detector. Reference numeral 2 denotes a base that houses a shield case 3 and a printed circuit board 4, and as shown in FIGS. An engagement hole 7 for locking and two opposing engagement pieces 8 are provided.
係合片８は、弾性変形可能で、その先端には、
内方に突出する鉤部９が形成されている。 The engagement piece 8 is elastically deformable, and has a tip at its tip.
A hook portion 9 is formed that projects inward.
基台２には、シールド板１０を介してフレーム
１１が設けられている。シールド板１０は、直径
ｄの金属製の円板で、このシールド板には、第１
図、第３図に示す様に、係合片８を挿入する係合
片用穴１２とフレーム１１の発光部と受光部の突
出部を挿入する受け穴１３が設けられている。 A frame 11 is provided on the base 2 with a shield plate 10 interposed therebetween. The shield plate 10 is a metal disc with a diameter d, and this shield plate includes a first
As shown in FIG. 3, an engaging piece hole 12 into which the engaging piece 8 is inserted and a receiving hole 13 into which the protruding parts of the light emitting part and the light receiving part of the frame 11 are inserted are provided.
フレーム１１は、第１図、第４図に示す様に、
シールド板１０を覆う直径ｄの鍔１１ａを有し、
このフレーム１１には発光部１４と受光部１５お
よび係合片用穴１６が設けられている。 As shown in FIGS. 1 and 4, the frame 11 is
It has a collar 11a with a diameter d that covers the shield plate 10,
This frame 11 is provided with a light emitting section 14, a light receiving section 15, and a hole 16 for an engaging piece.
発光部１４と受光部１５は、両者の光軸が所定
角度で交差するよう傾斜して設けられ、又、係合
片用穴１６の内方縁には、係合片８の鉤部９を係
止せしめる段部１７が形成されている。なお、暗
箱６は、保護カバ１８、防虫網１９、ラビリンス
２０により構成され、外気と流通可能である。２
１は、煙監視空間、２２は発光素子の前面に設け
たレンズ、２３は、光電式煙感知器１を取付ける
天井である。 The light emitting part 14 and the light receiving part 15 are provided at an angle so that their optical axes intersect at a predetermined angle, and the hook part 9 of the engaging piece 8 is provided on the inner edge of the engaging piece hole 16. A step portion 17 for locking is formed. The dark box 6 is composed of a protective cover 18, an insect screen 19, and a labyrinth 20, and can communicate with the outside air. 2
1 is a smoke monitoring space, 22 is a lens provided in front of a light emitting element, and 23 is a ceiling on which the photoelectric smoke sensor 1 is mounted.
本実施例の作動につき説明する。基台２の係合
片８をシールド板１０の係合片用穴１２に挿入
し、シールド板１０を基台２に載置する。その
後、基台２の係合片８をフレーム１１の係合片用
穴１６に挿入し、フレーム１１をシールド板１０
に押しつけると、係合片８は、穴１６の内壁面に
より外方に押され、鉤部９は、フレーム１１の表
面上に突出し、段部１７と接触して係止する。 The operation of this embodiment will be explained. The engagement piece 8 of the base 2 is inserted into the engagement piece hole 12 of the shield plate 10, and the shield plate 10 is placed on the base 2. After that, the engagement piece 8 of the base 2 is inserted into the engagement piece hole 16 of the frame 11, and the frame 11 is inserted into the shield plate 10.
When pressed, the engaging piece 8 is pushed outward by the inner wall surface of the hole 16, and the hook portion 9 protrudes onto the surface of the frame 11, comes into contact with the step portion 17, and is locked.
シールド板１０は、フレーム１１と基台２によ
り挟持され、その全表面は、フレーム１１により
完全に覆われる。 The shield plate 10 is held between the frame 11 and the base 2, and its entire surface is completely covered by the frame 11.
本考案は、上記の実施例に限定されるものでは
なく、例えば弾性的に変形する基台の鉤部と該鉤
部を係止せしめるフレームの段部の代わりに弾性
的に変形する鉤部をフレームに設け、該鉤部を係
止せしめる段部を基台に設けてもよい。 The present invention is not limited to the above-mentioned embodiments, and for example, instead of the elastically deformable hook of the base and the stepped portion of the frame that locks the hook, an elastically deformable hook is provided. A stepped portion may be provided on the frame and the base may be provided with a stepped portion for locking the hook portion.
考案の効果
本考案は、以上のように構成したので、シール
ド板とフレームを重ね、基台に押圧するだけでフ
レームはシールド板を挟持して基台に係合支持さ
れる。Effects of the Invention Since the present invention is configured as described above, by simply stacking the shield plate and the frame and pressing them against the base, the frame can be engaged and supported by the base while holding the shield plate.
従つて従来例のように、ねじ止めする必要がな
いので、組立作業が簡単かつ迅速に行なえ、作業
性の向上を図ることができる。 Therefore, unlike the conventional example, there is no need for screwing, so assembly work can be performed easily and quickly, and workability can be improved.
又、シールド板全体が、フレームの鍔により覆
われているので、シールド板により光が反射され
ることがなくなるとともに従来例のように光吸収
用の黒色塗装を施す必要がない。 Furthermore, since the entire shield plate is covered by the flange of the frame, no light is reflected by the shield plate, and there is no need to apply black coating for light absorption as in the conventional example.
従つて、塗装工程を省略できるので、作業性が
向上する。 Therefore, the painting process can be omitted, improving work efficiency.
第１図は、本考案の実施例を示す縦断面図、第
２図は、第１図の基台を示す平面図、第３図は、
第１図のシールド板を示す平面図、第４図は、第
１図のフレームを示す平面図である。
１……光電式煙感知器、２……基台、１０……
シールド板、１１……フレーム。
FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, FIG. 2 is a plan view showing the base of FIG. 1, and FIG.
FIG. 4 is a plan view showing the shield plate shown in FIG. 1, and FIG. 4 is a plan view showing the frame shown in FIG. 1...Photoelectric smoke detector, 2...Base, 10...
Shield plate, 11... frame.
Claims (1)
ームと基台とにより挟持されているシールド板
と、該フレームと該基台とに設けられた係合手
段と、を備えた光電式煙感知器であつて、フレ
ームは、シールドケース板全体を覆う鍔を備え
ていることを特徴とする光電式煙感知器のフレ
ーム取付構造。 (2) シールド板は、係合片用穴が形成されている
ことを特徴とする実用新案登録請求の範囲第１
項記載の光電式煙感知器のフレーム取付構造。 (3) 係合手段は、弾性的に変形する基台の鉤部
と、該鉤部を係止せしめるフレームの段部と、
からなることを特徴とする光電式煙感知器のフ
レーム取付構造。 (4) 係合手段は、弾性的に変形するフレームの鉤
部と、該鉤部を係止せしめる基台の段部と、か
らなることを特徴とする光電式煙感知器のフレ
ーム取付構造。[Claims for Utility Model Registration] (1) A frame having a light emitting part and a light receiving part, a shield plate held between the frame and a base, and an engaging means provided on the frame and the base. A frame mounting structure for a photoelectric smoke detector, characterized in that the frame is provided with a flange that covers the entire shield case plate. (2) Utility model registration claim 1, characterized in that the shield plate is formed with a hole for an engaging piece.
Frame mounting structure of the photoelectric smoke detector described in . (3) The engaging means includes a hook portion of the base that deforms elastically, and a step portion of the frame that locks the hook portion.
A frame mounting structure for a photoelectric smoke detector characterized by comprising: (4) A frame mounting structure for a photoelectric smoke detector, characterized in that the engaging means comprises an elastically deformable hook portion of the frame and a step portion of the base that locks the hook portion.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985111991U JPH0434442Y2 (en) | 1985-07-22 | 1985-07-22 | |
| EP86904401A EP0233294B1 (en) | 1985-07-22 | 1986-07-22 | Frame assembly of a photoelectric smoke sensor |
| PCT/JP1986/000388 WO1987000667A1 (en) | 1985-07-22 | 1986-07-22 | Frame assembly of a photoelectric smoke sensor |
| CA000514413A CA1294698C (en) | 1985-07-22 | 1986-07-22 | Frame assembly for a photocell-type smoke detector |
| DE86904401T DE3688131T2 (en) | 1985-07-22 | 1986-07-22 | FRAME CONSTRUCTION FOR PHOTOELECTRIC SMOKE SENSOR. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985111991U JPH0434442Y2 (en) | 1985-07-22 | 1985-07-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6220359U JPS6220359U (en) | 1987-02-06 |
| JPH0434442Y2 true JPH0434442Y2 (en) | 1992-08-17 |
Family
ID=14575204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985111991U Expired JPH0434442Y2 (en) | 1985-07-22 | 1985-07-22 |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0233294B1 (en) |
| JP (1) | JPH0434442Y2 (en) |
| CA (1) | CA1294698C (en) |
| DE (1) | DE3688131T2 (en) |
| WO (1) | WO1987000667A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63163698A (en) * | 1986-12-26 | 1988-07-07 | ホーチキ株式会社 | Scattered light type smoke sensor |
| EP0569712B1 (en) * | 1992-04-25 | 1998-03-04 | Nohmi Bosai Ltd. | Fire detector |
| ES2451915R1 (en) | 2012-09-27 | 2014-06-02 | Utc Fire & Security Americas Corporation, Inc. | MODULAR SMOKE DETECTION SYSTEM AND PROCEDURE FOR MOUNTING A SMOKE DETECTION SYSTEM |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5721119U (en) * | 1980-07-03 | 1982-02-03 | ||
| JPS5812316U (en) * | 1981-07-14 | 1983-01-26 | 村田 信夫 | Western umbrella |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2434178C2 (en) * | 1974-07-16 | 1983-12-08 | Matsushita Electric Works, Ltd., Kadoma, Osaka | Smoke alarm device based on the light scattering principle |
| JPS54136981U (en) * | 1978-03-15 | 1979-09-22 | ||
| DE2830532A1 (en) * | 1978-07-12 | 1980-01-31 | Eichenauer Fa Fritz | ELECTRIC RADIATOR FOR FLUID MEDIA |
| FR2454661A1 (en) * | 1979-04-20 | 1980-11-14 | Hochiki Co | Fire detector coupling mechanism - has mounting plate with locating elements and terminal connections for detector head |
-
1985
- 1985-07-22 JP JP1985111991U patent/JPH0434442Y2/ja not_active Expired
-
1986
- 1986-07-22 CA CA000514413A patent/CA1294698C/en not_active Expired - Fee Related
- 1986-07-22 EP EP86904401A patent/EP0233294B1/en not_active Expired - Lifetime
- 1986-07-22 WO PCT/JP1986/000388 patent/WO1987000667A1/en active IP Right Grant
- 1986-07-22 DE DE86904401T patent/DE3688131T2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5721119U (en) * | 1980-07-03 | 1982-02-03 | ||
| JPS5812316U (en) * | 1981-07-14 | 1983-01-26 | 村田 信夫 | Western umbrella |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1987000667A1 (en) | 1987-01-29 |
| EP0233294A1 (en) | 1987-08-26 |
| EP0233294A4 (en) | 1989-03-16 |
| JPS6220359U (en) | 1987-02-06 |
| DE3688131T2 (en) | 1993-11-18 |
| EP0233294B1 (en) | 1993-03-24 |
| DE3688131D1 (en) | 1993-04-29 |
| CA1294698C (en) | 1992-01-21 |
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