JPH01156255U - - Google Patents

Info

Publication number
JPH01156255U
JPH01156255U JP5259688U JP5259688U JPH01156255U JP H01156255 U JPH01156255 U JP H01156255U JP 5259688 U JP5259688 U JP 5259688U JP 5259688 U JP5259688 U JP 5259688U JP H01156255 U JPH01156255 U JP H01156255U
Authority
JP
Japan
Prior art keywords
hydraulic
hydraulic circuit
tractor
oil
passages
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
JP5259688U
Other languages
Japanese (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 JP5259688U priority Critical patent/JPH01156255U/ja
Publication of JPH01156255U publication Critical patent/JPH01156255U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Lifting Devices For Agricultural Implements (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)

Description

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

第１図は本考案の実施例を示す油圧回路図、第
２図及び第３図も本考案の他の実施例を示す油圧
回路図、第４図はトラクタに設けた本考案の油圧
回路図、第５図は比較例を示す油圧回路図である
。 ３，５，６…アクチユエータ、８，９…油圧ポ
ンプ、１０，１１…合流前の油路、１３…合流後
の油路、１６…アンロード弁、１９…合流点。 Fig. 1 is a hydraulic circuit diagram showing an embodiment of the invention, Figs. 2 and 3 are also hydraulic circuit diagrams showing other embodiments of the invention, and Fig. 4 is a hydraulic circuit diagram of the invention installed on a tractor. , FIG. 5 is a hydraulic circuit diagram showing a comparative example. 3, 5, 6... actuator, 8, 9... hydraulic pump, 10, 11... oil path before merging, 13... oil path after merging, 16... unload valve, 19... merging point.

Claims (1)

【実用新案登録請求の範囲】 ２つの油圧ポンプからの作動油供給油路を１つ
の油路に合流させた後アクチユエータに接続する
よう構成したトラクタの油圧回路において、 前記合流点よりも上流側の油路の内、一方の油
路に、入・切操作されるアンロード弁が設けられ
たことを特徴とするトラクタの油圧回路。[Scope of Claim for Utility Model Registration] In a hydraulic circuit for a tractor configured such that hydraulic oil supply passages from two hydraulic pumps are merged into one oil passage and then connected to an actuator, A hydraulic circuit for a tractor, characterized in that one of the oil passages is provided with an unload valve that is turned on and off.
JP5259688U 1988-04-18 1988-04-18 Pending JPH01156255U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5259688U JPH01156255U (en) 1988-04-18 1988-04-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5259688U JPH01156255U (en) 1988-04-18 1988-04-18

Publications (1)

Publication Number Publication Date
JPH01156255U true JPH01156255U (en) 1989-10-26

Family

ID=31278601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5259688U Pending JPH01156255U (en) 1988-04-18 1988-04-18

Country Status (1)

Country Link
JP (1) JPH01156255U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04129902U (en) * 1991-05-22 1992-11-30 株式会社小松製作所 Operation valve device
JP2003004005A (en) * 2001-06-22 2003-01-08 Kobelco Contstruction Machinery Ltd Hydraulic control circuit of construction machine
JP2010242338A (en) * 2009-04-03 2010-10-28 Nippon Sharyo Seizo Kaisha Ltd Construction machinery

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04129902U (en) * 1991-05-22 1992-11-30 株式会社小松製作所 Operation valve device
JP2003004005A (en) * 2001-06-22 2003-01-08 Kobelco Contstruction Machinery Ltd Hydraulic control circuit of construction machine
JP2010242338A (en) * 2009-04-03 2010-10-28 Nippon Sharyo Seizo Kaisha Ltd Construction machinery

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