JPS5715020A - Travelling speed changer for 4-wheel drive tractor - Google Patents
Travelling speed changer for 4-wheel drive tractorInfo
- Publication number
- JPS5715020A JPS5715020A JP8987480A JP8987480A JPS5715020A JP S5715020 A JPS5715020 A JP S5715020A JP 8987480 A JP8987480 A JP 8987480A JP 8987480 A JP8987480 A JP 8987480A JP S5715020 A JPS5715020 A JP S5715020A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- wheels
- speed change
- nonoperated
- interlock
- 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
Links
Landscapes
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
PURPOSE: To improve performance for rapid swivel by disconnecting interlock between both speed changers and by reducing a circumferential speed of a nonoperated wheel by a speed change control device for operating put side by side when an operating angle of the tractor mentioned on the top equipped with a hydraulic stepless speed changer on each of front and rear wheels exceeds a prescribed value.
CONSTITUTION: With front wheels 1 operated by a control handle, if the operating angle exceeds a fixed value, a claw member 31 is disconnected from an engaged tooth part, and interlock between the first and the second speed change drivers is disconnected allowing the second speed change driver 6 to become independent. At the same time with handle operation a limit switch L is actuated to interrupt an input signal from an arithmetic unit 15 to a comparator 18, while a detected speed from the arithmetic unit 15 is stored and a speed lower than the detected speed is inputted from a setting device 36 to the comparator 18, allowing a circumferential speed of nonoperated wheels 2 to be made to be lower than that of operated wheels 1. Through the process, rapid swivel performance is improved.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8987480A JPS5715020A (en) | 1980-06-30 | 1980-06-30 | Travelling speed changer for 4-wheel drive tractor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8987480A JPS5715020A (en) | 1980-06-30 | 1980-06-30 | Travelling speed changer for 4-wheel drive tractor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5715020A true JPS5715020A (en) | 1982-01-26 |
Family
ID=13982906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8987480A Pending JPS5715020A (en) | 1980-06-30 | 1980-06-30 | Travelling speed changer for 4-wheel drive tractor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5715020A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58136521A (en) * | 1982-02-05 | 1983-08-13 | Kubota Ltd | Steering and traveling device of front wheel driven tractor |
US4886142A (en) * | 1987-06-26 | 1989-12-12 | Kanzaki Kokyukoki Mfg. Co. Ltd. | Hydraulic four-wheel drive system |
-
1980
- 1980-06-30 JP JP8987480A patent/JPS5715020A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58136521A (en) * | 1982-02-05 | 1983-08-13 | Kubota Ltd | Steering and traveling device of front wheel driven tractor |
JPS6235929B2 (en) * | 1982-02-05 | 1987-08-04 | Kubota Ltd | |
US4886142A (en) * | 1987-06-26 | 1989-12-12 | Kanzaki Kokyukoki Mfg. Co. Ltd. | Hydraulic four-wheel drive system |
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