JPH01133693U - - Google Patents
Info
- Publication number
- JPH01133693U JPH01133693U JP2695288U JP2695288U JPH01133693U JP H01133693 U JPH01133693 U JP H01133693U JP 2695288 U JP2695288 U JP 2695288U JP 2695288 U JP2695288 U JP 2695288U JP H01133693 U JPH01133693 U JP H01133693U
- Authority
- JP
- Japan
- Prior art keywords
- dark box
- smoke
- wire mesh
- scattered light
- smoke detector
- 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.)
- Pending
Links
- 239000000779 smoke Substances 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000011810 insulating material Substances 0.000 claims 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Description
第1図は本考案による散乱光式煙感知器の一実
施例における中央縦断面図、第2図は第1図の散
乱光式煙感知器の分解組立図、第3図は従来の散
乱光式煙感知器における中央縦断面図、第4図は
第3図の散乱光式煙感知器の外観図であつて、各
図を通じて同一部分は同一符号で示してある。
10…暗箱、11…煙流入口、4…金網、3…
電気回路部、7…鍔部(金網をシールドケースか
ら隔てる部材)、9…本体ケース、13…開口部
、11,12…小孔、突起(係合手段)、14…
蓋体。
Fig. 1 is a central vertical sectional view of one embodiment of the scattered light smoke detector according to the present invention, Fig. 2 is an exploded assembly view of the scattered light smoke detector of Fig. 1, and Fig. 3 is a conventional scattered light smoke detector. FIG. 4 is an external view of the scattered light type smoke detector shown in FIG. 3, and the same parts are designated by the same reference numerals throughout the figures. 10... Dark box, 11... Smoke inlet, 4... Wire mesh, 3...
Electric circuit section, 7... Flange (member separating the wire mesh from the shield case), 9... Main body case, 13... Opening, 11, 12... Small hole, protrusion (engaging means), 14...
Lid body.
Claims (1)
せる暗箱と、該暗箱の煙流入口を覆う金網と、上
記暗箱を載置し、電気回路部に進入する外来の電
気的ノイズを遮断するシールドケースとを有した
散乱光式煙感知器において、上記暗箱は絶縁物よ
りなり、上記金網とシールドケースとの間に介在
して上記金網をシールドケースから隔てる部材を
上記暗箱に一体に形成したことを特徴とする散乱
光式煙感知器。 (2) 少なくとも、外来光を遮断し煙を流入させ
る暗箱と、該暗箱の煙流入口を覆う金網と、上記
暗箱内へ光を送受する光学素子および該光学素子
に接続された電気回路部を内部に収容する本体ケ
ースとを有した散乱光式煙感知器において、煙流
入用の開口部を有し、かつ上記本体ケースとの係
合手段を有する蓋体により、上記暗箱および金網
を覆つたことを特徴とする散乱光式煙感知器。[Scope of Claim for Utility Model Registration] (1) At least a dark box that blocks external light and allows smoke to flow in, a wire mesh that covers the smoke inlet of the dark box, and the dark box that is placed thereon and enters the electrical circuit section. In a scattered light smoke detector having a shield case for blocking external electrical noise, the dark box is made of an insulating material, and is a member interposed between the wire mesh and the shield case to separate the wire mesh from the shield case. A scattered light type smoke detector characterized in that the above-mentioned dark box is formed integrally with the above-mentioned dark box. (2) At least a dark box that blocks external light and allows smoke to flow in, a wire mesh that covers the smoke inlet of the dark box, an optical element that transmits and receives light into the dark box, and an electric circuit connected to the optical element. In a scattered light smoke detector having a main body case housed inside, the dark box and the wire mesh are covered by a lid body having an opening for smoke inflow and having means for engaging with the main body case. A scattered light type smoke detector characterized by:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2695288U JPH01133693U (en) | 1988-03-02 | 1988-03-02 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2695288U JPH01133693U (en) | 1988-03-02 | 1988-03-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01133693U true JPH01133693U (en) | 1989-09-12 |
Family
ID=31249036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2695288U Pending JPH01133693U (en) | 1988-03-02 | 1988-03-02 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01133693U (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5737268U (en) * | 1980-08-08 | 1982-02-27 | ||
JPS5825514U (en) * | 1981-08-12 | 1983-02-18 | 古河電気工業株式会社 | Electric wire snow prevention device |
JPS5825515U (en) * | 1981-08-12 | 1983-02-18 | 古河電気工業株式会社 | Device to prevent snow from accumulating on covered electric wires |
JPS5945697B2 (en) * | 1980-01-09 | 1984-11-08 | チバ−ガイギ−、アクチエンゲゼルシヤフト | Dye-stable disperse dyes and their use for dyeing or summer dyeing synthetic and semi-synthetic textile materials |
JPS6031698A (en) * | 1983-07-30 | 1985-02-18 | 松下電工株式会社 | Photoelectric smoke sensor |
JPS6139610A (en) * | 1984-07-27 | 1986-02-25 | Yokogawa Hewlett Packard Ltd | Amplifier |
-
1988
- 1988-03-02 JP JP2695288U patent/JPH01133693U/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5945697B2 (en) * | 1980-01-09 | 1984-11-08 | チバ−ガイギ−、アクチエンゲゼルシヤフト | Dye-stable disperse dyes and their use for dyeing or summer dyeing synthetic and semi-synthetic textile materials |
JPS5737268U (en) * | 1980-08-08 | 1982-02-27 | ||
JPS5825514U (en) * | 1981-08-12 | 1983-02-18 | 古河電気工業株式会社 | Electric wire snow prevention device |
JPS5825515U (en) * | 1981-08-12 | 1983-02-18 | 古河電気工業株式会社 | Device to prevent snow from accumulating on covered electric wires |
JPS6031698A (en) * | 1983-07-30 | 1985-02-18 | 松下電工株式会社 | Photoelectric smoke sensor |
JPS6139610A (en) * | 1984-07-27 | 1986-02-25 | Yokogawa Hewlett Packard Ltd | Amplifier |
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