FR2438409A1 - Regulateur de profondeur pour instruments agricoles - Google Patents

Regulateur de profondeur pour instruments agricoles

Info

Publication number
FR2438409A1
FR2438409A1 FR7925202A FR7925202A FR2438409A1 FR 2438409 A1 FR2438409 A1 FR 2438409A1 FR 7925202 A FR7925202 A FR 7925202A FR 7925202 A FR7925202 A FR 7925202A FR 2438409 A1 FR2438409 A1 FR 2438409A1
Authority
FR
France
Prior art keywords
raise
potentiometer
agricultural machinery
electronically controlled
hydraulic system
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.)
Withdrawn
Application number
FR7925202A
Other languages
English (en)
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.)
Navistar Inc
Original Assignee
International Harverster 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 International Harverster Corp filed Critical International Harverster Corp
Publication of FR2438409A1 publication Critical patent/FR2438409A1/fr
Withdrawn legal-status Critical Current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
    • A01B63/14—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements drawn by animals or tractors
    • A01B63/16—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements drawn by animals or tractors with wheels adjustable relatively to the frame
    • A01B63/22—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements drawn by animals or tractors with wheels adjustable relatively to the frame operated by hydraulic or pneumatic means

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Lifting Devices For Agricultural Implements (AREA)

Abstract

LE DISPOSITIF COMPORTE UNE SOUPAPE 45 A COMMANDE ELECTRIQUE, CONNECTE EN SERIE ENTRE LES VERINS 27, 28 SOLIDAIRES D'UN CHASSIS TRAINE SUPPORTANT DES DISQUES, DES CORPS DE CHARRUE OU ANALOGUE, ET UNE SOUPAPE 14 ACTIONNEE A LA MAIN, QUI COMMANDE LA COMMUNICATION DU FLUIDE AVEC LES VERINS. LA SOUPAPE A COMMANDE ELECTRIQUE EST COMMANDEE PAR UN CIRCUIT A COMPARATEUR QUI COMPARE LES SORTIES DE TRANSDUCTEURS DELIVRANT DES SIGNAUX CORRESPONDANT L'UN A UNE LIMITE FIXEE A LA MAIN 18, ET L'AUTRE A LA POSITION VERTICALE REELLE DE L'INSTRUMENT AGRICOLE, LA SOUPAPE A COMMANDE ELECTRIQUE ETANT AINSI ACTIONNEE QUAND LA LIMITE REGLEE MANUELLEMENT EST ATTEINTE DE FACON A EMPECHER TOUTE AUTRE DESCENTE DE L'INSTRUMENT AGRICOLE.
FR7925202A 1978-10-13 1979-10-10 Regulateur de profondeur pour instruments agricoles Withdrawn FR2438409A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US95110678A 1978-10-13 1978-10-13

Publications (1)

Publication Number Publication Date
FR2438409A1 true FR2438409A1 (fr) 1980-05-09

Family

ID=25491273

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7925202A Withdrawn FR2438409A1 (fr) 1978-10-13 1979-10-10 Regulateur de profondeur pour instruments agricoles

Country Status (3)

Country Link
AU (1) AU5160679A (fr)
CA (1) CA1117626A (fr)
FR (1) FR2438409A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053158B1 (fr) * 1980-06-05 1985-03-06 J. I. Case Company Systeme hydraulique automatique de mise a niveau et de commande de l'elevation
FR2568088A1 (fr) * 1984-07-26 1986-01-31 Stark Crister Appareil de reglage pour outils de machines-agricoles

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10750653B2 (en) 2016-03-02 2020-08-25 Deere & Company Automated leveling and depth control system of a work machine and method thereof
US10667454B2 (en) 2016-03-02 2020-06-02 Deere & Company Hydraulic control system of an implement for a work machine and method thereof
US9961823B2 (en) 2016-03-02 2018-05-08 Deere & Company Hydraulic control system of an implement for a work machine and method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2040284A1 (fr) * 1969-04-28 1971-01-22 Deere & Co
US3731746A (en) * 1971-11-18 1973-05-08 Allis Chalmers Weight transfer hitch
US3831683A (en) * 1971-09-06 1974-08-27 Hitachi Construction Machinery System for controlling the level of an earth-removing blade of a bulldozer
US4053018A (en) * 1973-05-23 1977-10-11 Kabushiki Kaisha Komatsu Seisakusho Automatic control system for earth-moving equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2040284A1 (fr) * 1969-04-28 1971-01-22 Deere & Co
US3831683A (en) * 1971-09-06 1974-08-27 Hitachi Construction Machinery System for controlling the level of an earth-removing blade of a bulldozer
US3731746A (en) * 1971-11-18 1973-05-08 Allis Chalmers Weight transfer hitch
US4053018A (en) * 1973-05-23 1977-10-11 Kabushiki Kaisha Komatsu Seisakusho Automatic control system for earth-moving equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053158B1 (fr) * 1980-06-05 1985-03-06 J. I. Case Company Systeme hydraulique automatique de mise a niveau et de commande de l'elevation
FR2568088A1 (fr) * 1984-07-26 1986-01-31 Stark Crister Appareil de reglage pour outils de machines-agricoles

Also Published As

Publication number Publication date
CA1117626A (fr) 1982-02-02
AU5160679A (en) 1980-04-17

Similar Documents

Publication Publication Date Title
GB1503592A (en) Method of and means for feed-back-connected control of a tractor connected to a working implement
GB1534314A (en) Control system for the load control of engines of vehicles for agricultural work with rotary working implements
US3064371A (en) Control apparatus for earth moving equipment
GB1155374A (en) Tractors
CN206061448U (zh) 一种旋耕开沟两用机
FR2438409A1 (fr) Regulateur de profondeur pour instruments agricoles
GB1067951A (en) Device for regulating the working depth of cultivating apparatus which are pivotally connected to tractors
DE3017570C2 (fr)
US2667745A (en) Control valve for fluid operated lifts
DE3571735D1 (en) Ground-working depth control system for a vehicle
US3063506A (en) Plow
GB2009580A (en) Position and/or Load Controlling Fluid Circuit for Agricultural Machinery
GB1357659A (en) Implement in combination with a side draft control system
US3411225A (en) Automatically regulatable drain cleaner
US2361083A (en) Dispensing attachment for tractors
DE3664996D1 (en) Implement to prepare the soil with a roller under a tractor and whose pressure on the soil can be regulated before or during the work
ES8106827A1 (es) Perfeccionamientos introducidos en los mecanismos hidrauli- cos de elevacion para implementos o aperos acoplados sobre todo a tractores agricolas
DE3775809D1 (de) Elektrohydraulische hubwerks-regeleinrichtung.
CN207185111U (zh) 一种机械、液压、电气控制组合式农机自动平田旋耕设备
JPS6349961B2 (fr)
GB1086662A (en) Improvements relating to self-propelled traction vehicles, more particularly agricultural tractors
CN2399245Y (zh) 手扶拖拉机液压调节旋耕装置
GB610571A (en) Improvements in or relating to agricultural and other land-working machines
GB950531A (en) New or improved means for controlling tractor-implement combinations
ES488712A1 (es) Arado para el trabajo del suelo,especialmente en planta- ciones en lineas

Legal Events

Date Code Title Description
ST Notification of lapse