JPS63155881U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案を適用したダイアフラム式アク
チユエータの結合部分の縦断面拡大図（第５図の
―断面拡大図）、第２図は第１図とは別の部
分の縦断面拡大図（第５図の―断面拡大図）
、第３図はダイヤフラム式アクチユエータの全体
縦断面略図、第４図は環状プレートの正面図、第
５図は第３図のＶ矢視拡大図、第６図は従来の縦
断面部分図、第７図は第６図の矢視図、第８図
は別の従来例の縦断面図である。１，２……ケー
ス部材、１２……ゴムダイヤフラム、２０，２１
……フランジ、２３……突起部、２４……円筒部
、２５……環状プレート、２８……切欠き部。 Fig. 1 is an enlarged vertical cross-sectional view of a connecting part of a diaphragm actuator to which the present invention is applied (an enlarged cross-sectional view of Fig. 5), and Fig. 2 is an enlarged vertical cross-sectional view of a different part from Fig. 1 (Fig. 5 - enlarged cross-sectional view). (Enlarged cross-sectional view of Figure 5)
, FIG. 3 is a schematic vertical cross-sectional view of the entire diaphragm actuator, FIG. 4 is a front view of the annular plate, FIG. 7 is a view in the direction of the arrow in FIG. 6, and FIG. 8 is a longitudinal sectional view of another conventional example. 1, 2... Case member, 12... Rubber diaphragm, 20, 21
... Flange, 23 ... Protrusion, 24 ... Cylindrical portion, 25 ... Annular plate, 28 ... Notch.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 椀形の第１、第２ケース部材の各開口端面にそ
れぞれ外向きのフランジを形成し、第１ケース部
材のフランジの外周端部に第２ケース部材側に延
びる円筒部を形成すると共に円筒部の先端部には
半径方向内方に突出する突起部を円周方向に間隔
を隔てて複数個形成し、第２ケース部材のフラン
ジには上記突起部が嵌挿しうる切欠き部を複数個
形成し、両フランジ間にゴムダイヤフラムの外周
端部を配置して突起部を第２ケース部材の側端面
に圧接することにより両ケース部材を結合するゴ
ムダイヤフラム式アクチユエータにおいて、第２
ケースの部材のフランジとゴムダイヤフラムの外
周端部との間に、上記全切欠き部を覆う環状プレ
ートを縮径自在に配置したことを特徴とするゴム
ダイヤフラム式アクチユエータのケース結合構造
。 An outward facing flange is formed on each opening end surface of the bowl-shaped first and second case members, and a cylindrical part extending toward the second case member is formed at the outer peripheral end of the flange of the first case member. A plurality of projections protruding inward in the radial direction are formed at intervals in the circumferential direction at the tip of the second case member, and a plurality of notches into which the projections can be fitted are formed in the flange of the second case member. In a rubber diaphragm actuator that connects both case members by arranging the outer peripheral end of the rubber diaphragm between both flanges and pressing the protrusion against the side end surface of the second case member,
A case coupling structure for a rubber diaphragm type actuator, characterized in that an annular plate covering the entire notch is arranged between a flange of a case member and an outer peripheral end of a rubber diaphragm so that its diameter can be reduced.