JPH0427280U - - Google Patents

Info

Publication number
JPH0427280U
JPH0427280U JP6903990U JP6903990U JPH0427280U JP H0427280 U JPH0427280 U JP H0427280U JP 6903990 U JP6903990 U JP 6903990U JP 6903990 U JP6903990 U JP 6903990U JP H0427280 U JPH0427280 U JP H0427280U
Authority
JP
Japan
Prior art keywords
spool
neutral position
valve
pistons
chambers
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.)
Granted
Application number
JP6903990U
Other languages
English (en)
Other versions
JPH0721980Y2 (ja
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1990069039U priority Critical patent/JPH0721980Y2/ja
Publication of JPH0427280U publication Critical patent/JPH0427280U/ja
Application granted granted Critical
Publication of JPH0721980Y2 publication Critical patent/JPH0721980Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Fluid-Driven Valves (AREA)

Description

【図面の簡単な説明】
第１図はスプールが中立位置に配置された状態
を示す断面図、第２図はスプールが一方の動作位
置に配置された状態を示す断面図、第３図ａ、第
３図ｂは変更例の要部断面図である。 バルブハウジング……１、ボデイブロツク……
１ａ、キヤツプ……１ｂ，１ｃ、スプール……２
、ピストン……３，４、ばね受け……９，１０、
ばね座……１１、コイルばね……１２，１３、パ
イロツト弁としての弁体……２８ａ，２８ｂ，２
９ａ，２９ｂ、室……Ｒ１，Ｒ２、空間……Ｓ１
，Ｓ２。

Claims (1)

    【実用新案登録請求の範囲】
  1. パイロツト弁２８ａ，２８ｂ，２９ａ，２９ｂ
    の開閉制御によりスプール２を中立位置と中立位
    置を挟んだ両側の作動位置の３位置に切換配置し
    、この切換配置により流体の供給方向を切り換え
    る３位置切換電磁弁において、バルブハウジング
    １の前記スプール２の収容部の両端に室Ｒ１，Ｒ
    ２を設け、該室Ｒ１，Ｒ２内には各室Ｒ１，Ｒ２
    をパイロツト圧が供給される側とスプール側空間
    Ｓ１，Ｓ２とに区画するとともにパイロツト圧に
    より前記スプール２を作動させるピストン３，４
    を摺動可能に設け、前記スプール２が中立位置か
    ら移動した場合スプール２を中立位置側に付勢す
    るための一対のコイルばね１２，１３をピストン
    ３，４より大径に形成するとともに前記各室Ｒ１
    ，Ｒ２のスプール側空間Ｓ１，Ｓ２にスプール２
    の外周に沿つて延びるように収容したことを特徴
    とする３位置切換電磁弁。
JP1990069039U 1990-06-28 1990-06-28 ３位置切換電磁弁 Expired - Lifetime JPH0721980Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990069039U JPH0721980Y2 (ja) 1990-06-28 1990-06-28 ３位置切換電磁弁

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990069039U JPH0721980Y2 (ja) 1990-06-28 1990-06-28 ３位置切換電磁弁

Publications (2)

Publication Number Publication Date
JPH0427280U true JPH0427280U (ja) 1992-03-04
JPH0721980Y2 JPH0721980Y2 (ja) 1995-05-17

Family

ID=31604005

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990069039U Expired - Lifetime JPH0721980Y2 (ja) 1990-06-28 1990-06-28 ３位置切換電磁弁

Country Status (1)

Country Link
JP (1) JPH0721980Y2 (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5728958U (ja) * 1980-07-28 1982-02-16
JPH01216104A (ja) * 1987-11-02 1989-08-30 Sumitomo Heavy Ind Ltd 流量圧力制御弁

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5728958U (ja) * 1980-07-28 1982-02-16
JPH01216104A (ja) * 1987-11-02 1989-08-30 Sumitomo Heavy Ind Ltd 流量圧力制御弁

Also Published As

Publication number Publication date
JPH0721980Y2 (ja) 1995-05-17

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term