JPH0436695U - - Google Patents
Info
- Publication number
- JPH0436695U JPH0436695U JP7892290U JP7892290U JPH0436695U JP H0436695 U JPH0436695 U JP H0436695U JP 7892290 U JP7892290 U JP 7892290U JP 7892290 U JP7892290 U JP 7892290U JP H0436695 U JPH0436695 U JP H0436695U
- Authority
- JP
- Japan
- Prior art keywords
- outer electrode
- shield ring
- engaging
- pair
- claw
- 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
- 210000000078 claw Anatomy 0.000 claims description 8
- 239000000779 smoke Substances 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000000630 rising effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fire-Detection Mechanisms (AREA)
Description
第１図および第２図は本考案に係るイオン化式
煙感知器の外電極とシールドリングとの係合状態
を示す図であり、第１図は外電極にシールドリン
グを係合する際のシールドリングの係合爪の動き
を示した要部断面図、第２図は外電極にシールド
リングの係合を完了した状態を示す要部断面図、
第３図および第４図は従来のイオン化式煙感知器
を示す図であり、第３図は外電極にシールドリン
グの係合を完了した状態を示す要部断面図、第４
図は外電極とシールドリングの斜視図、第５図は
イオン化式煙感知器全体の要部断面図である。
１……イオン室、２……外電極、２ａ……開口
、２ｂ……係合孔、２ｃ……凸状部、２ｄ……外
電極の底面、４……シールドリング、４ａ……係
合爪、４ｃ……凹状部、４ｄ……先端の折り曲げ
部、１３……間隔。
Figures 1 and 2 are diagrams showing the state of engagement between the outer electrode and the shield ring of the ionization type smoke detector according to the present invention, and Figure 1 shows the shield ring when the outer electrode is engaged with the shield ring. FIG. 2 is a cross-sectional view of the main part showing the movement of the engagement claw of the ring; FIG.
3 and 4 are diagrams showing a conventional ionization type smoke detector. FIG. 3 is a sectional view of the main part showing a state in which the shield ring has been completely engaged with the outer electrode, and FIG.
The figure is a perspective view of the outer electrode and the shield ring, and FIG. 5 is a sectional view of the main parts of the entire ionization type smoke detector. 1... Ion chamber, 2... Outer electrode, 2a... Opening, 2b... Engagement hole, 2c... Convex portion, 2d... Bottom surface of outer electrode, 4... Shield ring, 4a... Engagement Claw, 4c...concave portion, 4d...bent portion at tip, 13...interval.
Claims (1)
係合孔を有する内部がイオン室である有底筒状の
外電極に、前記開口を適宜間隔をもつて覆う立ち
上がり片を有する略皿状で導電性のシールドリン
グを、該シールドリングの底面に設けた一対の係
合爪を前記係合孔により挿入回転することにより
装着し、前記外電極の底面には凸状部を設け、係
合爪には凹状部を設け、前記各凸凹状部が嵌合し
て係止するイオン化式煙感知器において、前記係
合爪の基端に前記外電極の板厚より僅かに高い立
ち上げを設けて斜め下に折り返すとともに、更に
その先端を斜め上に折り曲げ、係合時に該係合爪
の先端折り曲げ部が前記外電極の底面を押圧する
ようにしたことを特徴とするイオン化式煙感知器
。 A substantially dish having a bottomed cylindrical outer electrode having an opening through which smoke flows in on the peripheral side, a pair of engagement holes on the bottom surface, and an ion chamber inside, and rising pieces covering the opening at appropriate intervals. A conductive shield ring having a shape is attached by inserting and rotating a pair of engaging claws provided on the bottom surface of the shield ring through the engaging hole, and a convex portion is provided on the bottom surface of the outer electrode, and a pair of engaging claws provided on the bottom surface of the shield ring are inserted and rotated. In an ionization type smoke detector in which a concave portion is provided in the mating claw, and each of the concave and convex portions is engaged and locked, the proximal end of the mating claw is provided with a raised portion slightly higher than the plate thickness of the outer electrode. An ionization type smoke detector characterized in that the engaging claw is provided and folded diagonally downward, and its tip is further bent diagonally upward so that the bent portion of the tip of the engaging claw presses the bottom surface of the outer electrode when engaged. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7892290U JP2516195Y2 (en) | 1990-07-24 | 1990-07-24 | Ionized smoke detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7892290U JP2516195Y2 (en) | 1990-07-24 | 1990-07-24 | Ionized smoke detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0436695U true JPH0436695U (en) | 1992-03-27 |
| JP2516195Y2 JP2516195Y2 (en) | 1996-11-06 |
Family
ID=31622624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7892290U Expired - Lifetime JP2516195Y2 (en) | 1990-07-24 | 1990-07-24 | Ionized smoke detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2516195Y2 (en) |
-
1990
- 1990-07-24 JP JP7892290U patent/JP2516195Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2516195Y2 (en) | 1996-11-06 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |