JPH0337592U - - Google Patents
Info
- Publication number
- JPH0337592U JPH0337592U JP9797789U JP9797789U JPH0337592U JP H0337592 U JPH0337592 U JP H0337592U JP 9797789 U JP9797789 U JP 9797789U JP 9797789 U JP9797789 U JP 9797789U JP H0337592 U JPH0337592 U JP H0337592U
- Authority
- JP
- Japan
- Prior art keywords
- annular wall
- smoke detector
- scattered light
- detector according
- light type
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims 10
- 230000001154 acute effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
Description
第１図〜第４図は、この考案の実施例を示す図
で、第１図は縦断面図、第２図は光学台の下面図
、第３図は反射リングの上面図、第４図は光学台
カバーの上面図であり、第１図は第２図〜第４図
の−線断面を表す図である。第５図は使用状
態を示す縦断面図である。
３ａ，３ｂ…環状壁、３ｃ…凹凸面、６ａ，６
ｂ…環状壁、６ｃ…凹凸面、９…反射リング。
Figures 1 to 4 are diagrams showing an embodiment of this invention, with Figure 1 being a longitudinal sectional view, Figure 2 being a bottom view of the optical table, Figure 3 being a top view of the reflection ring, and Figure 4 being a top view of the reflection ring. 1 is a top view of the optical bench cover, and FIG. 1 is a cross-sectional view taken along the - line in FIGS. 2 to 4. FIG. 5 is a longitudinal sectional view showing the state of use. 3a, 3b... annular wall, 3c... uneven surface, 6a, 6
b...Annular wall, 6c...Uneven surface, 9...Reflection ring.
Claims (1)
面と下面に対向して形成された断面鋸歯状の凹凸
面と；該凹凸面の両側に立設された環状壁と；該
上面の環状壁と下面の環状壁との間に設けられ、
かつ、断面が中心向きの矢印状の反射リングと；
からなる散乱光式煙感知器。 (2) 凹凸面の突部が、内側が垂直面で外側が傾
斜面である請求項第１記載の散乱光式煙感知器。 (3) 環状壁が、内側環状壁と外側環状壁とから
なる請求項第１記載の散乱光式煙感知器。 (4) 内側環状壁の先端が、鋭角に形成されてい
る請求項第３記載の散乱光式煙感知器。 (5) 反射リングの内側先端が、上面と下面の内
側環状壁を結ぶ線上に位置し、その外側先端が上
面と下面の外側環状壁を結ぶ線上に位置している
請求項第１記載の散乱光式煙感知器。 (6) 反射リングの内側が、折曲面である請求項
第１記載の散乱光式煙感知器。 (7) 反射リングの外側が、突出部を立設した垂
直背面である請求項第１記載の散乱光式煙感知器
。[Scope of Claim for Utility Model Registration] (1) A smoke vent surrounding the smoke detection part; An uneven surface having a serrated cross section formed opposite to the upper and lower surfaces of the smoke vent; an annular wall erected on both sides; provided between the annular wall on the upper surface and the annular wall on the lower surface;
and an arrow-shaped reflective ring with a cross section facing the center;
Scattered light smoke detector. (2) The scattered light type smoke detector according to claim 1, wherein the protrusions of the uneven surface have a vertical surface on the inside and an inclined surface on the outside. (3) The scattered light type smoke detector according to claim 1, wherein the annular wall comprises an inner annular wall and an outer annular wall. (4) The scattered light type smoke detector according to claim 3, wherein the tip of the inner annular wall is formed at an acute angle. (5) The scattering device according to claim 1, wherein the inner tip of the reflective ring is located on a line connecting the inner annular walls of the upper surface and the lower surface, and the outer tip thereof is located on the line connecting the outer annular walls of the upper surface and the lower surface. Optical smoke detector. (6) The scattered light smoke detector according to claim 1, wherein the inside of the reflective ring is a bent surface. (7) The scattered light type smoke detector according to claim 1, wherein the outer side of the reflective ring is a vertical back surface with a protruding portion erected thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989097977U JPH082797Y2 (en) | 1989-08-24 | 1989-08-24 | Scattered light smoke detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989097977U JPH082797Y2 (en) | 1989-08-24 | 1989-08-24 | Scattered light smoke detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0337592U true JPH0337592U (en) | 1991-04-11 |
| JPH082797Y2 JPH082797Y2 (en) | 1996-01-29 |
Family
ID=31647097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989097977U Expired - Lifetime JPH082797Y2 (en) | 1989-08-24 | 1989-08-24 | Scattered light smoke detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH082797Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55462A (en) * | 1979-02-08 | 1980-01-05 | Nittan Co Ltd | Optical scatter type smoke sensor |
-
1989
- 1989-08-24 JP JP1989097977U patent/JPH082797Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55462A (en) * | 1979-02-08 | 1980-01-05 | Nittan Co Ltd | Optical scatter type smoke sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH082797Y2 (en) | 1996-01-29 |