JPS57175428A - Speed reduction shifter for tractor - Google Patents

Speed reduction shifter for tractor

Info

Publication number
JPS57175428A
JPS57175428A JP6200781A JP6200781A JPS57175428A JP S57175428 A JPS57175428 A JP S57175428A JP 6200781 A JP6200781 A JP 6200781A JP 6200781 A JP6200781 A JP 6200781A JP S57175428 A JPS57175428 A JP S57175428A
Authority
JP
Japan
Prior art keywords
speed reduction
solenoid
section
transmission
shifted
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
JP6200781A
Other languages
Japanese (ja)
Inventor
Tadao Nishihara
Hirohide Iguchi
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.)
Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
Original Assignee
Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
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 Iseki and Co Ltd, Iseki Agricultural Machinery Mfg Co Ltd filed Critical Iseki and Co Ltd
Priority to JP6200781A priority Critical patent/JPS57175428A/en
Publication of JPS57175428A publication Critical patent/JPS57175428A/en
Pending legal-status Critical Current

Links

Landscapes

  • Lifting Devices For Agricultural Implements (AREA)
  • Arrangement Of Transmissions (AREA)

Abstract

PURPOSE: To simplify operation, by composing a transmission of a constant speed section and a speed reduction section and shifting the transmission to the operation of the speed reduction section in connection with the elevation of an earth moving machine caused by a vertical motion operating lever.
CONSTITUTION: A transmission 10 is composed of a constant speed section 8 and a speed reduction section 9, which are alternatively operated by supplying pressurized oil from a pump 19 depending on the shifted position of a changeover solenoid valve 17. When electric power is applied to the solenoid 17a of the valve 17, it is shifted so that the pressurized oil flows through a constant speed port 17b. When the solenoid 17a is deenergized, the valve is shifted so that the pressurized oil flows through a speed reduction port 17c. A switch 21 is provided so that when a vertical motion operating lever 14 is turned to an elevation position, an actuating member 21c is pushed by the lever to open a normally closed contact 21b. The electric power supply to the solenoid 17a is controlled by the switch 21.
COPYRIGHT: (C)1982,JPO&Japio
JP6200781A 1981-04-24 1981-04-24 Speed reduction shifter for tractor Pending JPS57175428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6200781A JPS57175428A (en) 1981-04-24 1981-04-24 Speed reduction shifter for tractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6200781A JPS57175428A (en) 1981-04-24 1981-04-24 Speed reduction shifter for tractor

Publications (1)

Publication Number Publication Date
JPS57175428A true JPS57175428A (en) 1982-10-28

Family

ID=13187661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6200781A Pending JPS57175428A (en) 1981-04-24 1981-04-24 Speed reduction shifter for tractor

Country Status (1)

Country Link
JP (1) JPS57175428A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61110625A (en) * 1984-11-05 1986-05-28 Kubota Ltd Governor apparatus for working car

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61110625A (en) * 1984-11-05 1986-05-28 Kubota Ltd Governor apparatus for working car
JPH0353128B2 (en) * 1984-11-05 1991-08-14 Kubota Kk

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