JPS6446582U

JPS6446582U -

Info

Publication number: JPS6446582U
Application number: JP14127887U
Authority: JP
Priority date: 1987-09-16
Filing date: 1987-09-16
Publication date: 1989-03-22

Description

[Brief explanation of the drawing]

第１図はこの考案によるスプール回転防止構造
を比例電磁弁に適用した一例を示す縦断面図、第
２図は同じくそのスプールとそれに嵌入あるいは
挿入される各部品を示す分解斜視図、第３図は第
２図の回転止めワツシヤをスプールの一端部と共
に示す正面図、第４図は第１図の固定鉄心３２Ａ
を凹部側から見た斜視図、第５図は他の実施例を
示す第２図と同様な正面図、第６図はさらに異な
る他の実施例の要部のみを示す縦断面図、第７図
は従来のスプール弁のスプール回転防止構造を例
示する縦断面図である。１１……ボデイ、１２……スプール、１２ｃ，
１２ｄ……段部、１２ｆ……切欠円柱部（スプー
ルの一端部）、１２ｇ……角柱形状部、２８，２
９……スプリング、３０ａ……切欠円孔、３０ｃ
……角孔、３０……回転止めワツシヤ、｛３２Ａ
……固定鉄心、４２……プラグ｝（固定部材）、
３２ａ……凹部。 Figure 1 is a longitudinal cross-sectional view showing an example of the spool rotation prevention structure applied to a proportional solenoid valve according to this invention, Figure 2 is an exploded perspective view showing the spool and various parts fitted or inserted into it, and Figure 3. is a front view showing the rotation stop washer shown in Fig. 2 together with one end of the spool, and Fig. 4 is a front view showing the fixed iron core 32A shown in Fig. 1.
FIG. 5 is a front view similar to FIG. 2 showing another embodiment, FIG. 6 is a longitudinal sectional view showing only the essential parts of another embodiment, and FIG. The figure is a longitudinal cross-sectional view illustrating a conventional spool rotation prevention structure of a spool valve. 11...Body, 12...Spool, 12c,
12d... Stepped portion, 12f... Notched cylindrical portion (one end of the spool), 12g... Prismatic portion, 28,2
9... Spring, 30a... Notched circular hole, 30c
... Square hole, 30 ... Rotation stopper washer, {32A
...Fixed iron core, 42...Plug} (fixed member),
32a... recess.

Claims

[Scope of utility model registration request]

One end of the spool whose body is in a neutral state or biased to one side by a spring is formed into a notched cylindrical or prismatic shape, and the one end is formed with a notched circular or square hole corresponding to that shape. At the same time as fitting into a rotation stopper having a
The rotation stop washer is fitted in a concave portion of a fixing member fixed to the body so as not to rotate relative to each other, and the spring is interposed between the stepped portion of the spool and the rotation stop washer. A spool rotation prevention structure for a spool valve, characterized in that the rotation preventing washer and the fixing member are held in a fitted state.