JPS6471403A - Plowing depth controller of rotary tiller - Google Patents

Plowing depth controller of rotary tiller

Info

Publication number
JPS6471403A
JPS6471403A JP9230787A JP9230787A JPS6471403A JP S6471403 A JPS6471403 A JP S6471403A JP 9230787 A JP9230787 A JP 9230787A JP 9230787 A JP9230787 A JP 9230787A JP S6471403 A JPS6471403 A JP S6471403A
Authority
JP
Japan
Prior art keywords
unevenness
mode
extent
sensed
elevating mechanism
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
JP9230787A
Other languages
Japanese (ja)
Inventor
Mitsuo Yano
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.)
Yanmar Agribusiness Co Ltd
Original Assignee
Seirei Industry 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 Seirei Industry Co Ltd filed Critical Seirei Industry Co Ltd
Priority to JP9230787A priority Critical patent/JPS6471403A/en
Publication of JPS6471403A publication Critical patent/JPS6471403A/en
Pending legal-status Critical Current

Links

Landscapes

  • Lifting Devices For Agricultural Implements (AREA)

Abstract

PURPOSE:To carry out tilling work of flat finish without waving, by changing over a mode to slow actuation mode or quick actuation mode according to the tilt angle from the horizontal sensed by a longitudinal tilt sensing means. CONSTITUTION:The extent of unevenness of a field is sensed by a longitudinal tilt sensing means provided on a tractor (A). If the extent of unevenness is small (when the sensed values are within a given range), an elevating mechanism 19 is controlled by a slow mode. If the extent of unevenness is great (when the sensed values are outside the given range), the elevating mechanism 19 is controlled by a quick mode. The actuation of the elevating mechanism is capable of following the unevenness regardless of the size thereof.
JP9230787A 1987-04-14 1987-04-14 Plowing depth controller of rotary tiller Pending JPS6471403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9230787A JPS6471403A (en) 1987-04-14 1987-04-14 Plowing depth controller of rotary tiller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9230787A JPS6471403A (en) 1987-04-14 1987-04-14 Plowing depth controller of rotary tiller

Publications (1)

Publication Number Publication Date
JPS6471403A true JPS6471403A (en) 1989-03-16

Family

ID=14050747

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9230787A Pending JPS6471403A (en) 1987-04-14 1987-04-14 Plowing depth controller of rotary tiller

Country Status (1)

Country Link
JP (1) JPS6471403A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0387103A (en) * 1989-08-30 1991-04-11 Iseki & Co Ltd Hydraulic controller for lifting and lowering of ground working machine
JPH054811U (en) * 1991-07-10 1993-01-26 三菱農機株式会社 Lifting control device for work unit in work vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0387103A (en) * 1989-08-30 1991-04-11 Iseki & Co Ltd Hydraulic controller for lifting and lowering of ground working machine
JPH054811U (en) * 1991-07-10 1993-01-26 三菱農機株式会社 Lifting control device for work unit in work vehicle

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