JPS58191405U - directional valve - Google Patents

directional valve

Info

Publication number
JPS58191405U
JPS58191405U JP8938182U JP8938182U JPS58191405U JP S58191405 U JPS58191405 U JP S58191405U JP 8938182 U JP8938182 U JP 8938182U JP 8938182 U JP8938182 U JP 8938182U JP S58191405 U JPS58191405 U JP S58191405U
Authority
JP
Japan
Prior art keywords
directional control
valve
control valve
pump line
supplied
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
Application number
JP8938182U
Other languages
Japanese (ja)
Inventor
勝美 上野
Original Assignee
株式会社ボッシュオートモーティブ システム
日立建機株式会社
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 by 株式会社ボッシュオートモーティブ システム, 日立建機株式会社 filed Critical 株式会社ボッシュオートモーティブ システム
Priority to JP8938182U priority Critical patent/JPS58191405U/en
Publication of JPS58191405U publication Critical patent/JPS58191405U/en
Pending legal-status Critical Current

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  • Fluid-Pressure Circuits (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第1図は本考案に係る方向切換弁の一実施例を示す断面
図、第2図は第1図に示す方向切換弁の回路図、第3図
は第1図に示すチェック弁の拡大断面図である。 2〜4・・・・・・方向切換弁、5・・・・・・端板、
2a〜5a・・・・・・ハウジング、10・・・・・・
チェック弁、10a・・・・・・絞り部、11・・・・
・・弁体、12・・・・・・スプリング、P・・・・・
・ポンプライン、T・・・・・・タンクライン、N・・
・・・・ニュートラルライン、PM・・・・・・ポンプ
Fig. 1 is a sectional view showing an embodiment of the directional control valve according to the present invention, Fig. 2 is a circuit diagram of the directional control valve shown in Fig. 1, and Fig. 3 is an enlarged cross-section of the check valve shown in Fig. 1. It is a diagram. 2 to 4... Directional switching valve, 5... End plate,
2a-5a...Housing, 10...
Check valve, 10a... Throttle part, 11...
... Valve body, 12 ... Spring, P ...
・Pump line, T...tank line, N...
...Neutral line, PM...Pump.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 、  複数の方向切換弁が積重ね構造に組合されて形成
され下流側の方向切換弁のみの単独操作時にはニュート
ラルライン及びポンプラインから、上流側の方向切換弁
と同時操作時にはポンプラインから作動油が当該下流側
の方向切換弁に供給されるスタック形の方向切換弁にi
いて、隣接する所定の方向切換弁のハウジング内に連通
形成されたポンプラインに絞り部を有するチェック弁を
配設し、該チェック弁の弁体を上流側の方向切換弁のポ
ンプラインのスタック面に形成された弁座に当接させ、
下流側の方向切換弁のポンプラインのスタック面を前記
弁体のストッパとしたことを特徴とする方向切換弁。
, A plurality of directional control valves are combined in a stacked structure, and when only the downstream directional control valve is operated independently, the hydraulic oil is supplied from the neutral line and the pump line, and when the upstream directional control valve is operated simultaneously, the hydraulic oil is supplied from the pump line. i to the stack type directional control valve that is supplied to the downstream directional control valve.
A check valve having a constriction part is disposed in a pump line that communicates with the housing of an adjacent predetermined directional control valve, and the valve body of the check valve is connected to the stack surface of the pump line of the upstream directional control valve. abut against the valve seat formed in the
A directional switching valve characterized in that a stack surface of a pump line of a downstream directional switching valve is used as a stopper of the valve body.
JP8938182U 1982-06-15 1982-06-15 directional valve Pending JPS58191405U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8938182U JPS58191405U (en) 1982-06-15 1982-06-15 directional valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8938182U JPS58191405U (en) 1982-06-15 1982-06-15 directional valve

Publications (1)

Publication Number Publication Date
JPS58191405U true JPS58191405U (en) 1983-12-20

Family

ID=30098002

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8938182U Pending JPS58191405U (en) 1982-06-15 1982-06-15 directional valve

Country Status (1)

Country Link
JP (1) JPS58191405U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11270504A (en) * 1998-03-24 1999-10-05 Shin Caterpillar Mitsubishi Ltd Hydraulic circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4529990Y1 (en) * 1966-07-05 1970-11-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4529990Y1 (en) * 1966-07-05 1970-11-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11270504A (en) * 1998-03-24 1999-10-05 Shin Caterpillar Mitsubishi Ltd Hydraulic circuit

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