FR2448844B1 - - Google Patents

Info

Publication number
FR2448844B1
FR2448844B1 FR8003436A FR8003436A FR2448844B1 FR 2448844 B1 FR2448844 B1 FR 2448844B1 FR 8003436 A FR8003436 A FR 8003436A FR 8003436 A FR8003436 A FR 8003436A FR 2448844 B1 FR2448844 B1 FR 2448844B1
Authority
FR
France
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.)
Expired
Application number
FR8003436A
Other languages
French (fr)
Other versions
FR2448844A1 (fr
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
Publication of FR2448844A1 publication Critical patent/FR2448844A1/fr
Application granted granted Critical
Publication of FR2448844B1 publication Critical patent/FR2448844B1/fr
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
    • A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
    • A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
    • A01B63/111—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements
    • A01B63/114—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements to achieve a constant working depth

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
FR8003436A 1979-02-15 1980-02-15 Appareil de commande automatique de position pour tracteur agricole Granted FR2448844A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1757579A JPS55111706A (en) 1979-02-15 1979-02-15 Automatic lifting device of soil treating machine

Publications (2)

Publication Number Publication Date
FR2448844A1 FR2448844A1 (fr) 1980-09-12
FR2448844B1 true FR2448844B1 (OSRAM) 1984-03-30

Family

ID=11947702

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8003436A Granted FR2448844A1 (fr) 1979-02-15 1980-02-15 Appareil de commande automatique de position pour tracteur agricole

Country Status (7)

Country Link
US (1) US4300638A (OSRAM)
JP (1) JPS55111706A (OSRAM)
DE (1) DE3005741C2 (OSRAM)
FR (1) FR2448844A1 (OSRAM)
GB (1) GB2047437B (OSRAM)
IT (1) IT1154710B (OSRAM)
PH (1) PH17578A (OSRAM)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2927585C2 (de) * 1979-07-07 1983-06-09 Xaver Fendt & Co, 8952 Marktoberdorf Verfahren und Einrichtung zum Regeln der Arbeitstiefe eines von einer landwirtschaftlichen Zugmaschine, wie z.B. einem Schlepper getragenen Pfluges
US4437295A (en) 1981-04-08 1984-03-20 International Harvester Co. Automatic header height control
US4518044A (en) * 1982-03-22 1985-05-21 Deere & Company Vehicle with control system for raising and lowering implement
GB2120419A (en) * 1982-05-19 1983-11-30 Industry The Secretary Of Stat Control of agricultural instruments
US4495577A (en) * 1982-08-06 1985-01-22 Deere & Company Model reference adaptive implement control
FI72025C (fi) * 1982-11-04 1987-04-13 Valmet Oy Regleringssystem foer en traktor.
US4508176A (en) * 1982-11-22 1985-04-02 Deere & Company Vehicle with control system having operator-actuable switch for storing parameter signal value to control vehicle-connected implement raising and lowering structure
DE3316305C2 (de) * 1983-05-04 1986-09-04 Mannesmann Rexroth GmbH, 8770 Lohr Schaltungsanordnung zum Steuern eines von einem Schlepper gezogenen, mittels eines Hubzylinders der Höhe nach verstellbaren Anbaugeräts
US4573124A (en) * 1984-01-09 1986-02-25 Blackwelders Height control for agricultural machine
DE3413435A1 (de) * 1984-04-09 1985-10-17 Alfred Teves Gmbh, 6000 Frankfurt Regeleinrichtung fuer kraftfahrzeuge
DE3423032A1 (de) * 1984-06-22 1986-01-02 Alfred Teves Gmbh, 6000 Frankfurt Regeleinrichtung fuer kraftfahrzeuge
GB8608760D0 (en) * 1986-04-10 1986-05-14 Massey Ferguson Services Nv Implement control system
JPH0779565B2 (ja) * 1986-10-30 1995-08-30 井関農機株式会社 農作業機の昇降制御装置
US4846283A (en) * 1987-09-08 1989-07-11 J. I. Case Company Engine-sensing draft control system with multiple feedback compensation mechanisms
US4807136A (en) * 1987-10-26 1989-02-21 Ford Motor Company Draft load measurement and control
US5235511A (en) * 1988-06-09 1993-08-10 Spectra-Physics, Inc. Method for automatic depth control for earth moving and grading
US4914593B1 (en) * 1988-06-09 1995-01-17 Spectra Physics Method for automatic depth control for earth moving and grading
US4918608B1 (en) * 1988-06-09 1996-07-02 Christopher O Middleton Method for automatic depth control for earth moving and grading
US4979092A (en) * 1989-01-06 1990-12-18 Deere & Company Hitch control system
US5143159A (en) * 1991-06-03 1992-09-01 Ford New Holland, Inc. Draft control system with dual mode draft sensitivity
JP3155119B2 (ja) * 1993-05-31 2001-04-09 株式会社小松製作所 ブルドーザのド−ジング装置
DE4322355A1 (de) * 1993-07-05 1995-01-12 Rexroth Mannesmann Gmbh SHR/EHR-System für Hubwerke
US5968103A (en) * 1997-01-06 1999-10-19 Caterpillar Inc. System and method for automatic bucket loading using crowd factors
GB9707201D0 (en) * 1997-04-09 1997-05-28 Agco Ltd Tractor electronic linkage control system
US6076612A (en) * 1999-08-31 2000-06-20 Case Corporation Transition from position to draft mode controlled by hitch position command and feedback
US7104340B1 (en) 2005-03-22 2006-09-12 Deere & Company Towed implement draft force sensor
US7658234B2 (en) * 2005-12-09 2010-02-09 Caterpillar Inc. Ripper operation using force vector and track type tractor using same
US9826677B2 (en) 2014-12-16 2017-11-28 Cnh Industrial Canada, Ltd. Seed implement incorporating a down pressure sensing and adjustment system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1250670B (de) * 1967-09-21 Massey-Ferguson Ine , Detroit, Mich (V St A) Anordnung zur Steuerung des hydraulischen Krafthebers eines Ackerschleppers
DE1149555B (de) * 1956-10-18 1963-05-30 Teltov Geraete Regler UEbertragungsglied zur nichtlinearen UEbertragung von Signalen eines Regelkreises
DE1129751B (de) * 1959-06-11 1962-05-17 John Deere Lanz Ag Vorrichtung zur automatischen Lagen- und Zugkraftsteuerung fuer landwirtschaftliche Schlepper-Anbaugeraete und -Anhaengegeraete
US3470963A (en) * 1966-11-15 1969-10-07 Walter Schneider Depth-control device for soil-working implements
FI54981C (fi) * 1974-02-27 1979-04-10 Valmet Oy Regleringssystem foer traktor
US4064945A (en) * 1975-03-10 1977-12-27 J. I. Case Company Electronic depth control system
JPS51124502A (en) * 1975-04-25 1976-10-30 Kubota Ltd Automatic depth controller
CA1066111A (en) * 1975-12-22 1979-11-13 Otto Mueller (Jr.) Draft and position control linkage with depth limit for a tractor
US4015729A (en) * 1976-01-02 1977-04-05 J. I. Case Company Automatic control system for backhoe
JPS53103804A (en) * 1977-02-17 1978-09-09 Diesel Kiki Co Plow position controller of tractor
US4132272A (en) * 1977-06-30 1979-01-02 International Harvester Company Tractor hitch position control system

Also Published As

Publication number Publication date
DE3005741A1 (de) 1980-09-18
JPH0133121B2 (OSRAM) 1989-07-12
GB2047437A (en) 1980-11-26
IT8083316A0 (it) 1980-02-13
US4300638A (en) 1981-11-17
IT1154710B (it) 1987-01-21
DE3005741C2 (de) 1984-01-12
PH17578A (en) 1984-10-01
JPS55111706A (en) 1980-08-28
GB2047437B (en) 1982-12-01
FR2448844A1 (fr) 1980-09-12

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Legal Events

Date Code Title Description
ST Notification of lapse