JPH0423033U - - Google Patents
Info
- Publication number
- JPH0423033U JPH0423033U JP6348090U JP6348090U JPH0423033U JP H0423033 U JPH0423033 U JP H0423033U JP 6348090 U JP6348090 U JP 6348090U JP 6348090 U JP6348090 U JP 6348090U JP H0423033 U JPH0423033 U JP H0423033U
- Authority
- JP
- Japan
- Prior art keywords
- holder
- communication path
- flexible dome
- contact
- dust
- 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
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Switch Cases, Indication, And Locking (AREA)
Description
第１図および第２図は、本考案防塵形コンタク
トスイツチを示すものであつて第１図はその縦断
面図、第２図はホルダーにおける空気の連通路を
上方からの透視図、第３図、第４図および第５図
はは、従来の防塵形コンタクトスイツチを示すも
のであつて第３図はその縦断面図、第４図はホル
ダーにおける空気を連通路を上方からの透視図、
第５図は、第３図に示した従来の防塵形コンタク
トスイツチの分解斜視図である。
１０……ホルダー、１１……空室、１２……段
部、１３……底壁、１４ａ，１４ｂ……固定接点
、１５……側壁、１６ａ，１６ｂ……プラグ、１
７……ドーム、１８……円柱部、１９……可動接
点、２０……押圧部、２１……環状フランジ、２
２……上壁、２３……円筒状部、２４……キヤツ
プ、２５……孔、２６……突出棒、２７，２８…
…連絡溝、３１……トラツプ溝、３２……第１の
連通路、３３……第２の連通溝。
Figures 1 and 2 show the dust-proof contact switch of the present invention, with Figure 1 being a longitudinal sectional view, Figure 2 being a perspective view of the air communication path in the holder from above, and Figure 3 being a perspective view of the air communication path in the holder. , 4 and 5 show a conventional dust-proof contact switch, with FIG. 3 being a longitudinal sectional view thereof, and FIG. 4 being a perspective view from above of the air communication path in the holder.
FIG. 5 is an exploded perspective view of the conventional dust-proof contact switch shown in FIG. 3. 10...Holder, 11...Vacancy, 12...Step, 13...Bottom wall, 14a, 14b...Fixed contact, 15...Side wall, 16a, 16b...Plug, 1
7... Dome, 18... Cylindrical part, 19... Movable contact, 20... Pressing part, 21... Annular flange, 2
2... Upper wall, 23... Cylindrical part, 24... Cap, 25... Hole, 26... Projecting rod, 27, 28...
...Communication groove, 31...Trap groove, 32...First communication path, 33...Second communication groove.
Claims (1)
内に、その固定接点を気密に覆うとともに内面に
上記固定接点との開閉動作を行う押圧可動接点を
設けた可撓性ドームを配設し、この可撓性ドーム
を円筒壁を設けたキヤツプによつてホルダーに固
定した防塵形コンタクトスイツチにおいて、上記
ホルダーに、ホルダーの内周面とキヤツプの円筒
壁との外面とにより形成された間隙を大気に連通
する第１の連通路と、上記間隙と可撓性ドーム内
とを連通する第２の連通路と、上記ホルダーに、
頂端開口部が上記第１の連通路に開口するトラツ
プ溝とを形成したことを特徴とする防塵形コンタ
クトスイツチ。 A flexible dome is disposed in a container-shaped holder having a fixed contact on the inner surface of the bottom wall, airtightly covering the fixed contact and having a press movable contact on the inner surface for opening and closing operation with the fixed contact, In a dust-proof contact switch in which this flexible dome is fixed to a holder by a cap provided with a cylindrical wall, the gap formed by the inner peripheral surface of the holder and the outer surface of the cylindrical wall of the cap is connected to the atmosphere. a first communication path that communicates with the holder, a second communication path that communicates between the gap and the inside of the flexible dome, and the holder;
A dust-proof contact switch characterized in that a trap groove is formed in which the top opening opens into the first communication path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6348090U JPH0423033U (en) | 1990-06-15 | 1990-06-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6348090U JPH0423033U (en) | 1990-06-15 | 1990-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0423033U true JPH0423033U (en) | 1992-02-25 |
Family
ID=31593566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6348090U Pending JPH0423033U (en) | 1990-06-15 | 1990-06-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0423033U (en) |
-
1990
- 1990-06-15 JP JP6348090U patent/JPH0423033U/ja active Pending