JPS632883U - - Google Patents

Description

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

第１図ａ，ｂは本考案の一実施例におけるダイ
アフラムの正面図及び側面図、第２図ａは同上の
センタープレートの正面図、第２図ｂ，ｃは第２
図ａの―断面図及びＹ―Ｙ断面図、第３図ａ
，ｂは本考案の他例を示す分解断面図及び滑り板
の挿着方法を示す断面図、第４図は本考案の更に
他例を示す断面図、第５図はダイアフラムポンプ
の駆動部分の概略図、第６図及び第７図は永久磁
石と鉄芯との干渉状態を示す説明図、第８図は従
来例における軸とセンタープレートとの嵌合状態
を示す断面図、第９図は同上のダイアフラムにセ
ンタープレートと補助プレートを取り付けた状態
の断面図、第１０図ａ，ｂは同上のダイアフラム
の平面図及び断面図、第１１図ａ，ｂは同上のセ
ンタープレートの平面図及び断面図、第１２図は
同上のセンタープレートの破壊状態を示す断面図
である。 １……ダイアフラム、２……センタープレート
、３……孔、４……リブ、５……切り欠き、６…
…溝、７……溝無し部、２１……補助プレート。 Figures 1a and b are front and side views of a diaphragm in one embodiment of the present invention, Figure 2a is a front view of the same center plate, and Figures 2b and c are a
Figure a - cross-sectional view and Y-Y cross-sectional view, Figure 3 a
, b is an exploded cross-sectional view showing another example of the present invention and a cross-sectional view showing the method of inserting the sliding plate, FIG. 4 is a cross-sectional view showing still another example of the present invention, and FIG. The schematic diagram, FIGS. 6 and 7 are explanatory diagrams showing the state of interference between the permanent magnet and the iron core, FIG. 8 is a sectional view showing the fitted state of the shaft and center plate in the conventional example, and FIG. 9 is A cross-sectional view of the above diaphragm with a center plate and an auxiliary plate attached, Figures 10a and b are a plan view and a cross-sectional view of the same diaphragm, and Figures 11 a and b are a plan view and a cross-section of the same center plate. FIG. 12 is a sectional view showing a broken state of the center plate same as above. 1... Diaphragm, 2... Center plate, 3... Hole, 4... Rib, 5... Notch, 6...
... Groove, 7... Non-grooved section, 21... Auxiliary plate.

Claims (1)

【実用新案登録請求の範囲】 (1) ゴム製のダイアフラムの孔の部分の両面を
センタープレートと補助プレートとにより挾持さ
せたダイアフラムの保持構造において、センター
プレートを取り付けるための孔の内周部にリブを
突出させ、このリブに少なくとも一箇所の切り欠
きを設け、センタープレートに上記リブを嵌合さ
せるための溝を形成すると共にこの溝内に前記切
り欠きと嵌合する溝無し部を設けて成るダイアフ
ラムの保持構造。 (2) 摩擦係数の小さな滑り板に前記リブの径以
下の大きさの内径の透孔を設け、滑り板の透孔を
ダイアフラムのリブに挿通させて滑り板をダイア
フラムとセンタープレートとの間に介在させて成
る実用新案登録請求の範囲第１項記載のダイアフ
ラムの保持構造。 (3) 前記リブの先端部外周にフランジを設け、
摩擦係数の小さな滑り板にフランジの外径以下の
大きさの内径の透孔を設け、滑り板の透孔をダイ
アフラムのリブに挿通させて滑り板をダイアフラ
ムとセンタープレートとの間に介在させて成る実
用新案登録請求の範囲第１項記載のダイアフラム
の保持構造。[Claims for Utility Model Registration] (1) In a diaphragm holding structure in which both sides of the hole of a rubber diaphragm are held between a center plate and an auxiliary plate, the inner circumference of the hole for attaching the center plate is A rib is made to protrude, a notch is provided in at least one place in the rib, a groove is formed in the center plate for fitting the rib, and a non-grooved part is provided in the groove to fit with the notch. A diaphragm retaining structure. (2) A sliding plate with a small coefficient of friction is provided with a through hole with an inner diameter smaller than the diameter of the rib, and the through hole of the sliding plate is inserted through the rib of the diaphragm, so that the sliding plate is placed between the diaphragm and the center plate. A diaphragm holding structure according to claim 1 of the registered utility model, which is formed by interposing the diaphragm. (3) A flange is provided on the outer periphery of the tip of the rib,
A sliding plate with a small coefficient of friction is provided with a through hole with an inner diameter smaller than the outer diameter of the flange, and the through hole of the sliding plate is inserted through the rib of the diaphragm, so that the sliding plate is interposed between the diaphragm and the center plate. A diaphragm holding structure according to claim 1 of the utility model registration.