JPH0480905U - - Google Patents
Info
- Publication number
- JPH0480905U JPH0480905U JP12398990U JP12398990U JPH0480905U JP H0480905 U JPH0480905 U JP H0480905U JP 12398990 U JP12398990 U JP 12398990U JP 12398990 U JP12398990 U JP 12398990U JP H0480905 U JPH0480905 U JP H0480905U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- nipple
- moved
- working chamber
- case
- 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
- 210000002445 nipple Anatomy 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims 3
- 230000002093 peripheral effect Effects 0.000 claims 3
Landscapes
- Actuator (AREA)
Description
第１図および第２図はこの考案によるストロー
クアクチユエータの一実施例を示し、第１図は全
体の概略縦断面図、第２図は第１図の部分説明図
、第３図は従来のストロークアクチユエータを示
す概略縦断面図である。
１，２１……アツパーカツプ、２，２２……ロ
アーカツプ、３，２３……ダイアフラム、４，２
４……ダイアフラムリテーナ、５，２５……セン
タープレート、７，２７……ロツド、８，２８…
…アジヤストニツプル、９，２９……ニツプル、
１０，３０……ベアリング、１１，３１……ブー
ツ、１２，３２……バルブ、１２ａ，３２ａ……
シール部、１３，３３……バルブホルダ、１３ａ
，３３ａ……凹部、１４，３４……バルブハウジ
ング、１４ａ，３４ａ……孔、１４ｂ，３４ｂ…
…収納室、１４ｃ，３４ｃ……溝部、１４ｄ，２
１ａ……段部、１５，３５……スプリング、１６
，３６……ブラケツト、１８，３８……作動室。
1 and 2 show an embodiment of the stroke actuator according to this invention, FIG. 1 is a schematic vertical sectional view of the whole, FIG. 2 is a partial explanatory view of FIG. 1, and FIG. 3 is a conventional stroke actuator. FIG. 3 is a schematic vertical cross-sectional view showing the stroke actuator of FIG. 1, 21... Upper cup, 2, 22... Lower cup, 3, 23... Diaphragm, 4, 2
4...Diaphragm retainer, 5,25...Center plate, 7,27...Rod, 8,28...
...Asian nipple, 9,29...nipple,
10,30...bearing, 11,31...boot, 12,32...valve, 12a,32a...
Seal portion, 13, 33...Valve holder, 13a
, 33a... recess, 14, 34... valve housing, 14a, 34a... hole, 14b, 34b...
...Storage chamber, 14c, 34c...Groove, 14d, 2
1a...Step part, 15, 35...Spring, 16
, 36... Bracket, 18, 38... Working chamber.
Claims (1)
２と、前記作動室１８内に周縁部が保持された状
態で設けられるダイアフラム３と、前記ケース１
，２に設けられるとともに、前記作動室１８と外
部とを連通するアジヤストニツプル８およびニツ
プル９と、前記ダイアフラム３に一体に設けられ
るとともに、前記アジヤストニツプル８の先端部
を嵌入可能なバルブ１２とを具え、前記アジヤス
トニツプル８に負圧を印加して前記作動室１８内
を減圧すると前記バルブ１２が前記ダイアフラム
３の変位によつて前記アジヤストニツプル８との
間をシールする位置まで移動し、さらに前記ニツ
プル９に負圧を印加すると前記作動室１８がさら
に減圧されて前記バルブ１２が前記ダイアフラム
３の変位によつて前記アジヤストニツプル８を引
き込んでさらに移動するようになつたストローク
アクチユエータにおいて、前記ケース１と前記バ
ルブ１２との間に前記バルブ１２の径方向へのず
れを制限するガイド１ａを設けたことを特徴とす
るストロークアクチユエータ。 (2) 前記ガイド１ａは、前記ケース１の内周面
に等配に設けられている請求項１記載のストロー
クアクチユエータ。 (3) 前記ガイド１ａは、前記バルブ１２の外周
側に設けられている請求項１記載のストロークア
クチユエータ。[Scope of claims for utility model registration] (1) Case 1 in which the working chamber 18 is provided inside,
2, a diaphragm 3 provided with its peripheral portion held within the working chamber 18, and the case 1.
. When a negative pressure is applied to the azimuth nipple 8 to reduce the pressure in the working chamber 18, the valve 12 seals between the azimuth nipple 8 and the azimuth nipple 8 by the displacement of the diaphragm 3. When the valve 12 is moved to a position where the valve 12 is moved to a position where the valve 12 is moved to a position where the adjusting nipple 8 is moved and a negative pressure is further applied to the nipple 9, the pressure in the working chamber 18 is further reduced, and the valve 12 is moved further by retracting the adjusting nipple 8 by the displacement of the diaphragm 3. 1. A stroke actuator according to the present invention, characterized in that a guide 1a is provided between the case 1 and the valve 12 to limit displacement of the valve 12 in the radial direction. (2) The stroke actuator according to claim 1, wherein the guides 1a are provided equidistantly on the inner peripheral surface of the case 1. (3) The stroke actuator according to claim 1, wherein the guide 1a is provided on the outer peripheral side of the valve 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12398990U JPH0480905U (en) | 1990-11-26 | 1990-11-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12398990U JPH0480905U (en) | 1990-11-26 | 1990-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0480905U true JPH0480905U (en) | 1992-07-14 |
Family
ID=31871666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12398990U Pending JPH0480905U (en) | 1990-11-26 | 1990-11-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0480905U (en) |
-
1990
- 1990-11-26 JP JP12398990U patent/JPH0480905U/ja active Pending
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