JPS5914997Y2 - Sealing device for cylinder type proximity switch - Google Patents
Sealing device for cylinder type proximity switchInfo
- Publication number
- JPS5914997Y2 JPS5914997Y2 JP8240479U JP8240479U JPS5914997Y2 JP S5914997 Y2 JPS5914997 Y2 JP S5914997Y2 JP 8240479 U JP8240479 U JP 8240479U JP 8240479 U JP8240479 U JP 8240479U JP S5914997 Y2 JPS5914997 Y2 JP S5914997Y2
- Authority
- JP
- Japan
- Prior art keywords
- case
- ring
- head cap
- recess
- proximity switch
- 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
Landscapes
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Electronic Switches (AREA)
Description
【考案の詳細な説明】
従来この種の装置として第２図に示すようにケース１と
キャップ３との隙間は接着剤によってシールされていた
が、十分なシール性が得られず、これを改善する手段と
してケース１とキャップ３間にＯリングシールを設ける
ことが考えられるが、近接スイッチの検出距離とコイル
５を収容するコア６の外径寸法とは比例関係にあり、し
たがって検出距離が決定されるとコア６の外径もおのず
と決定される。[Detailed description of the invention] Conventionally, in this type of device, the gap between the case 1 and the cap 3 was sealed with adhesive as shown in Figure 2, but sufficient sealing performance was not obtained, so we improved this. One way to do this is to provide an O-ring seal between the case 1 and the cap 3, but there is a proportional relationship between the detection distance of the proximity switch and the outer diameter of the core 6 that accommodates the coil 5, so the detection distance is determined. Then, the outer diameter of the core 6 is automatically determined.
このためケース１の外径が寸法的に制約されるばあいに
はケース１とキャップ３との間にＯリングシールを使用
することは寸法的に無理が生ずる。For this reason, if the outer diameter of the case 1 is dimensionally restricted, it is dimensionally unreasonable to use an O-ring seal between the case 1 and the cap 3.
この考案はこのような従来の欠点を解消しようとするも
ので以下図によってこの考案の一実施例について説明す
る。This invention is intended to eliminate such conventional drawbacks, and one embodiment of this invention will be described below with reference to the drawings.
すなわち第１図において筒状のケース１の一端にはその
内周壁に沿って凹部２が形成され、この凹部内にはへッ
ドキャツブ３が嵌挿され、このキャップの開口端部は凹
部２によって形成された段部４と衝合している。That is, in FIG. 1, a recess 2 is formed at one end of a cylindrical case 1 along its inner peripheral wall, a head cap 3 is fitted into this recess, and the open end of this cap is formed by the recess 2. It collides with the stepped section 4.
そしてこのキャップ内にはコイル５および６が収容され
ている。Coils 5 and 6 are housed within this cap.
ケース１内にはこの一端からリング７が嵌挿され、かつ
その外周面が、段部４において、ケース１とヘッドキャ
ップ３の面内周面に跨って位置するようにされている。A ring 7 is fitted into the case 1 from one end thereof, and its outer circumferential surface is positioned across the inner circumferential surfaces of the case 1 and the head cap 3 at the stepped portion 4 .
そしてこのリングの外周面において、段部４を境に、ケ
ース１とヘッドキャップ３側にはそれぞれ一対の溝８，
９が形成され、これらの溝内にはＯリングシール１０，
１１が収容され、これによってケース１とリング７問お
よび゛ヘッドキャップ３とリング７間のシールが行われ
る。On the outer circumferential surface of this ring, a pair of grooves 8 are formed on the case 1 and head cap 3 sides, with the stepped portion 4 as a boundary.
9 are formed, and O-ring seals 10,
11 is accommodated, thereby sealing between the case 1 and the seven rings and between the head cap 3 and the ring 7.
なおケース１内にはプリント基板１２およびこの基板に
取付けた電気部品１３．１３が収容されている。Note that the case 1 houses a printed circuit board 12 and electrical components 13, 13 attached to this circuit board.
この考案は上述のようにリング７の外周面が段部４にお
いてケース１とキャップ３の面内側面に跨って位置する
ように設け、かつこのリングの外周面において、段部４
を境に、ケース１とキャツプ３側に少なくとも一対の溝
８，９を設け、さらにこの溝内にはＯリングシール１０
，１１が収容されているので、ケース１とキャップ３間
から侵入した水や油はシール１０，１１によってキャッ
プ３内にも、ケース１の電子部品１３．１３側にも流入
することはない。As described above, this device is provided so that the outer circumferential surface of the ring 7 is located at the stepped portion 4 across the inner surfaces of the case 1 and the cap 3, and the outer circumferential surface of the ring 7 is provided so that the outer circumferential surface of the ring 7
At least a pair of grooves 8 and 9 are provided on the case 1 and cap 3 sides, and an O-ring seal 10 is provided in this groove.
, 11 are accommodated, water and oil that have entered between the case 1 and the cap 3 will not flow into the cap 3 or the electronic parts 13, 13 side of the case 1 due to the seals 10, 11.
またＯリングシール１０，１１はケース１およびキャッ
プ３内においてその外方に力を与えるためシール性がき
わめて良好である。Further, since the O-ring seals 10 and 11 apply force outward within the case 1 and the cap 3, their sealing performance is extremely good.
第１図はこの考案の一実施例を示す側断面図、第２図は
従来の近接スイッチを示す側断面図である。
１・・・・・・ケース、２・・・・・・凹部、３・・・
・・・ヘッドキャップ、４・・・・・・段部、５・・・
・・・コイル、６・・・・・・コア、７・・・・・・リ
ング、８，９・・・・・・溝、１０．１１・・・・・・
Ｏリングシール、１２・・・・・・プリント基板、１３
．１３・・・・・・電子部品。FIG. 1 is a side sectional view showing an embodiment of this invention, and FIG. 2 is a side sectional view showing a conventional proximity switch. 1...Case, 2...Recess, 3...
...Head cap, 4...Step part, 5...
...Coil, 6...Core, 7...Ring, 8,9...Groove, 10.11...
O-ring seal, 12... Printed circuit board, 13
．． 13...Electronic parts.
Claims (1)
れた凹部２と、この凹部内に嵌挿され、その開口端部を
、上記凹部２の段部４と衝合させたヘッドキャップ３と
、上記ケース１内に嵌挿され、外周面が上記段部４にお
いて、上記ケース１と、上記ヘッドキャップ３の面内周
面に跨って位置するように設けたリング７と、このリン
グの外周面において、上記衝合段部４を境に、上記ケー
ス１と上記ヘッドキャップ３側に形成した少くとも一対
の溝８，９と、これらの溝内にそれぞれ収容され、上記
ケース１と上記リング７問および上記ヘッドキャップ３
と上記リング７間のシールを司るＯリングシール１０．
１１を備えたシリンダ山形近接スイッチのシール装置。A recess 2 formed along the inner wall of one end of a cylindrical case 1; a head cap 3 fitted into the recess and having its open end abutted against the step 4 of the recess 2; , a ring 7 which is fitted into the case 1 and whose outer circumferential surface is located at the stepped portion 4 so as to straddle the case 1 and the inner circumferential surface of the head cap 3; and the outer circumference of this ring. At least a pair of grooves 8 and 9 are formed on the case 1 and the head cap 3 side with the abutting step portion 4 as a boundary, and the grooves are accommodated in these grooves, respectively, and the case 1 and the ring 7 questions and head cap 3 above
and an O-ring seal 10 for sealing between the ring 7 and the ring 7.
A sealing device for a cylinder angle-shaped proximity switch with 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8240479U JPS5914997Y2 (en) | 1979-06-15 | 1979-06-15 | Sealing device for cylinder type proximity switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8240479U JPS5914997Y2 (en) | 1979-06-15 | 1979-06-15 | Sealing device for cylinder type proximity switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5640U JPS5640U (en) | 1981-01-06 |
| JPS5914997Y2 true JPS5914997Y2 (en) | 1984-05-02 |
Family
ID=29315630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8240479U Expired JPS5914997Y2 (en) | 1979-06-15 | 1979-06-15 | Sealing device for cylinder type proximity switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5914997Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6624544B2 (en) * | 2015-03-30 | 2019-12-25 | パナソニックＩｐマネジメント株式会社 | Proximity sensor |
-
1979
- 1979-06-15 JP JP8240479U patent/JPS5914997Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5640U (en) | 1981-01-06 |
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