FR3097832B1 - Steering system for an agricultural vehicle with reverse direction by lever - Google Patents

Steering system for an agricultural vehicle with reverse direction by lever Download PDF

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Publication number
FR3097832B1
FR3097832B1 FR1906934A FR1906934A FR3097832B1 FR 3097832 B1 FR3097832 B1 FR 3097832B1 FR 1906934 A FR1906934 A FR 1906934A FR 1906934 A FR1906934 A FR 1906934A FR 3097832 B1 FR3097832 B1 FR 3097832B1
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FR
France
Prior art keywords
steering
hydraulic circuit
agricultural vehicle
lever
steering 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.)
Active
Application number
FR1906934A
Other languages
French (fr)
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FR3097832A1 (en
Inventor
René Grosjean
Romain Grosjean
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.)
GRV SAS
Original Assignee
GRV SAS
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 GRV SAS filed Critical GRV SAS
Priority to FR1906934A priority Critical patent/FR3097832B1/en
Publication of FR3097832A1 publication Critical patent/FR3097832A1/en
Application granted granted Critical
Publication of FR3097832B1 publication Critical patent/FR3097832B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/22—Alternative steering-control elements, e.g. for teaching purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/09—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by means for actuating valves

Abstract

Système de direction pour un véhicule agricole à inversion de sens de marche par levier Contenu de l’abrégé. L’invention concerne un système de direction pour un véhicule agricole tracteur ou enjambeur (2), comportant un circuit hydraulique principal (6) de commande de la direction d’un essieu directeur (4) par un volant de direction (7) actionné en rotation et agissant sur au moins un actionneur hydraulique de direction (8), caractérisé en ce qu’il comporte :- un circuit hydraulique auxiliaire (14) raccordé en parallèle sur le circuit hydraulique principal (6), en entrée de l’actionneur hydraulique de direction (8), ce circuit hydraulique auxiliaire (14) comportant une valve de commande directionnelle pilotée (16) ;- et un dispositif de pilotage (21) du circuit hydraulique auxiliaire (14) comportant un système de commande (22) délivrant un état de commande de direction à droite ou à gauche, inhibant le fonctionnement du circuit hydraulique principal (6) et pilotant la valve de commande directionnelle (16) pour commander l’actionneur hydraulique de direction (8) en fonction de cet état de commande. Figure pour l’abrégé : Fig. 1.Steering system for an agricultural vehicle with reverse direction by lever Content of the abstract. The invention relates to a steering system for a tractor or straddle agricultural vehicle (2), comprising a main hydraulic circuit (6) for controlling the direction of a steering axle (4) by a steering wheel (7) actuated in rotation and acting on at least one steering hydraulic actuator (8), characterized in that it comprises:- an auxiliary hydraulic circuit (14) connected in parallel to the main hydraulic circuit (6), at the input of the hydraulic actuator (8), this auxiliary hydraulic circuit (14) comprising a piloted directional control valve (16);- and a piloting device (21) of the auxiliary hydraulic circuit (14) comprising a control system (22) delivering a right or left steering control state, inhibiting the operation of the main hydraulic circuit (6) and controlling the directional control valve (16) to control the hydraulic steering actuator (8) according to this control state ask. Figure for abstract: Fig. 1.

FR1906934A 2019-06-26 2019-06-26 Steering system for an agricultural vehicle with reverse direction by lever Active FR3097832B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1906934A FR3097832B1 (en) 2019-06-26 2019-06-26 Steering system for an agricultural vehicle with reverse direction by lever

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1906934A FR3097832B1 (en) 2019-06-26 2019-06-26 Steering system for an agricultural vehicle with reverse direction by lever
FR1906934 2019-06-26

Publications (2)

Publication Number Publication Date
FR3097832A1 FR3097832A1 (en) 2021-01-01
FR3097832B1 true FR3097832B1 (en) 2022-12-23

Family

ID=68211021

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1906934A Active FR3097832B1 (en) 2019-06-26 2019-06-26 Steering system for an agricultural vehicle with reverse direction by lever

Country Status (1)

Country Link
FR (1) FR3097832B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3128907A1 (en) 2021-11-05 2023-05-12 Etablissements Bobard Jeune REDUCED POLLUTION STRAP-OVER TRACTOR AGRICULTURAL VEHICLE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4031951C2 (en) * 1990-10-09 1994-06-09 Danfoss As Hydraulic steering system for vehicles
ITBO20050085A1 (en) * 2005-02-18 2006-08-19 Cnh Italia Spa HYDRAULIC STEERING SYSTEM FOR MOTOR VEHICLES, IN PARTICULAR FOR EARTH MOVING MACHINES
DE102005025966A1 (en) * 2005-06-03 2006-12-21 Claas Selbstfahrende Erntemaschinen Gmbh Steering system for agricultural vehicles
JP5052147B2 (en) * 2007-01-25 2012-10-17 日立建機株式会社 Steering device for construction vehicles

Also Published As

Publication number Publication date
FR3097832A1 (en) 2021-01-01

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