JPS5725504A - Hydraulic device for operating working machine - Google Patents

Hydraulic device for operating working machine

Info

Publication number
JPS5725504A
JPS5725504A JP9905680A JP9905680A JPS5725504A JP S5725504 A JPS5725504 A JP S5725504A JP 9905680 A JP9905680 A JP 9905680A JP 9905680 A JP9905680 A JP 9905680A JP S5725504 A JPS5725504 A JP S5725504A
Authority
JP
Japan
Prior art keywords
change
over valve
operating
working
fluid
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
JP9905680A
Other languages
Japanese (ja)
Inventor
Sadao Suzuki
Taro Adachi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP9905680A priority Critical patent/JPS5725504A/en
Publication of JPS5725504A publication Critical patent/JPS5725504A/en
Pending legal-status Critical Current

Links

Landscapes

  • Harvester Elements (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: To enable an effective utilization of hydraulic fluid or oil from the pump which may be discharged when the the change-over valve is changed over as a working source for other fluid pressure working devices such as a depth adjusting regulator etc. in a fluid pressure device to be applied in a combine cutting machine.
CONSTITUTION: The change-over valve 9 to be changed over under a three-position changing operation for the spool 8 is arranged in a hydraulic fluid feeding pipe between the fluid pressure supply pump P and the uniform operating cylinder 7 for use in operating the working machine. With the first operating condition of the change-over valve 9, the working device B is forcedly lifted through the cylinder 7 and with the second operating condition of the change-over valve the working machine B is descended down by its weight, then with the third operating condition of the change-over valve the working machine B is kept stopped. The pressure fluid from the pump P to be fed toward the change-over valve 9 during the case in which it is set to its second or third condition is automatically and reversely fed to other fluid pressure operated machines for use in regulating a cutting depth or controlling steering operation which is provided in along with the hydraulic operating device for operating the working device through the line C4 for the change-over valve 9, thereby a pressurized fluid may be effectively utilized.
COPYRIGHT: (C)1982,JPO&Japio
JP9905680A 1980-07-18 1980-07-18 Hydraulic device for operating working machine Pending JPS5725504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9905680A JPS5725504A (en) 1980-07-18 1980-07-18 Hydraulic device for operating working machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9905680A JPS5725504A (en) 1980-07-18 1980-07-18 Hydraulic device for operating working machine

Publications (1)

Publication Number Publication Date
JPS5725504A true JPS5725504A (en) 1982-02-10

Family

ID=14236990

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9905680A Pending JPS5725504A (en) 1980-07-18 1980-07-18 Hydraulic device for operating working machine

Country Status (1)

Country Link
JP (1) JPS5725504A (en)

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