JPS58113311U - tractor hydraulic circuit - Google Patents

tractor hydraulic circuit

Info

Publication number
JPS58113311U
JPS58113311U JP986382U JP986382U JPS58113311U JP S58113311 U JPS58113311 U JP S58113311U JP 986382 U JP986382 U JP 986382U JP 986382 U JP986382 U JP 986382U JP S58113311 U JPS58113311 U JP S58113311U
Authority
JP
Japan
Prior art keywords
circuit
hydraulic circuit
tractor
horizontal control
return oil
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
JP986382U
Other languages
Japanese (ja)
Other versions
JPH018084Y2 (en
Inventor
光彦 遠部
Original Assignee
株式会社クボタ
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 株式会社クボタ filed Critical 株式会社クボタ
Priority to JP986382U priority Critical patent/JPS58113311U/en
Publication of JPS58113311U publication Critical patent/JPS58113311U/en
Application granted granted Critical
Publication of JPH018084Y2 publication Critical patent/JPH018084Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)
  • Lifting Devices For Agricultural Implements (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 the drawing]

図面は本考案の一実施例を例示するものであって、第１
図は側面図、第２踵ま油圧回路図である。 １・・・トラクタ、２・・・昇降シリンダ、４・・・プ
ラウ、６ａ・・・リフトロッドシリンダ、８・・・油圧
ポンプ、１０・・・分流弁、１１・・・昇降回路、１２
・・・水平制御回路、１３．１４・・・入側油路、２４
・・・戻り油路、２６・・・開閉弁。The drawings illustrate one embodiment of the present invention.
The figure is a side view and a second heel hydraulic circuit diagram. DESCRIPTION OF SYMBOLS 1... Tractor, 2... Lifting cylinder, 4... Plow, 6a... Lift rod cylinder, 8... Hydraulic pump, 10... Diversion valve, 11... Lifting circuit, 12
...Horizontal control circuit, 13.14...Inlet oil path, 24
...Return oil path, 26...Opening/closing valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 作業機の昇降回路と作業機の水平制御回路とを分流弁を
介して油圧ポンプに接続し、水平制御回路の戻り油路を
チェック弁を介して昇降回路に合流させたトラクタの油
圧回路において、戻り油路のチェック弁より上流側に、
水平制御動作時に水平制御回路のパイロット圧により該
戻り油路を開放する開閉弁を介装したことを特徴とする
トラクタの油圧回路。In the hydraulic circuit of a tractor, the lifting circuit of the working equipment and the horizontal control circuit of the working equipment are connected to a hydraulic pump via a diversion valve, and the return oil path of the horizontal control circuit is joined to the lifting circuit via a check valve. Upstream of the return oil path check valve,
A hydraulic circuit for a tractor, characterized in that a hydraulic circuit for a tractor is provided with an on-off valve that opens the return oil passage using pilot pressure of the horizontal control circuit during horizontal control operation.
JP986382U 1982-01-26 1982-01-26 tractor hydraulic circuit Granted JPS58113311U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP986382U JPS58113311U (en) 1982-01-26 1982-01-26 tractor hydraulic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP986382U JPS58113311U (en) 1982-01-26 1982-01-26 tractor hydraulic circuit

Publications (2)

Publication Number Publication Date
JPS58113311U true JPS58113311U (en) 1983-08-03
JPH018084Y2 JPH018084Y2 (en) 1989-03-03

Family

ID=30022473

Family Applications (1)

Application Number Title Priority Date Filing Date
JP986382U Granted JPS58113311U (en) 1982-01-26 1982-01-26 tractor hydraulic circuit

Country Status (1)

Country Link
JP (1) JPS58113311U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6087702A (en) * 1983-10-18 1985-05-17 井関農機株式会社 Hydraulic controller of tractor
JPS6310809U (en) * 1986-07-07 1988-01-25

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6087702A (en) * 1983-10-18 1985-05-17 井関農機株式会社 Hydraulic controller of tractor
JPS6310809U (en) * 1986-07-07 1988-01-25

Also Published As

Publication number Publication date
JPH018084Y2 (en) 1989-03-03

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