FR2632484A1 - Improved height adjustment system - Google Patents

Improved height adjustment system Download PDF

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Publication number
FR2632484A1
FR2632484A1 FR8808052A FR8808052A FR2632484A1 FR 2632484 A1 FR2632484 A1 FR 2632484A1 FR 8808052 A FR8808052 A FR 8808052A FR 8808052 A FR8808052 A FR 8808052A FR 2632484 A1 FR2632484 A1 FR 2632484A1
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France
Prior art keywords
tool
sensor
feeler
assembly
regulation system
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Granted
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FR8808052A
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French (fr)
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FR2632484B1 (en
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Individual
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Priority to FR8808052A priority Critical patent/FR2632484B1/en
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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

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

Abstract

Improved height adjustment system comprising an assembly 1 comprising a feeler 2 and a sensor 3 which is connected to a tool so as to adjust the working depth height thereof, characterized in that this assembly 1 can be moved with respect to the tool to increase the clearance of the members - feeler 2 - sensor 3 - and prevent them being damaged either during reversing movements, or in the raised position.

Description

SYSTEME DE REGULQTION DE HRUTEUR PERFECTIONNE I1 existe de nombreux systèmes de régulation de hauteur électriques ou électroniques qui commandent des relevages hydrauliques å partir d'une valeur de consigne comparée à une valeur fournie par un capteur cpmmandé par un tateur en contact avec le sol. IMPROVED HEIGHT REGULATOR SYSTEM There are many electric or electronic height control systems that control hydraulic liftings from a setpoint compared to a value provided by a sensor controlled by a ground contactor.

Ces systèmes fonctionnent généralement bien mais présentent tous un défaut majeur qui est la fragilité du tateur et du capteur soit lors d'une manoeuvre de recul soit lors du relevage par un dégagement insuffisant du capteur au dessus du sol.These systems generally work well but all have a major defect which is the fragility of the guard and the sensor either during a reversing maneuver or during lifting by an insufficient clearance of the sensor above the ground.

L'objet de l'invention est de proposer des solutions simples å ces difficultés.The object of the invention is to propose simple solutions to these difficulties.

Le tâteur et le capteur sont portés par un support commun de façon å supprimer tout risque de derèglement étant donnés la sensibilité qui doit être très grande pour assurer uneprécision suffisante.The feeler and the sensor are carried by a common support so as to eliminate any risk of adjustment, given the sensitivity which must be very high to ensure sufficient accuracy.

Cet ensemble peut se déplacer par rapport a l'outil, soit par, soit par une translation ou autre mouvement.This assembly can move relative to the tool, either by, or by a translation or other movement.

Ce déplacement peut être par exemple un pivotement autour d'un axe horizontal transversal å l'avancement s'opérant lorsque l'outil supportant l'ensemble tuteur - capteur opère une marche arrière de façon å ce qu'ainsi le capteur puisse prendre une position libre le dégageant de toute contrainte, au cours d'une marche arrière opérée sans que l'outil correspondant ne soit relevé. This displacement can be for example a pivoting around a horizontal axis transverse to the advancement taking place when the tool supporting the tutor-sensor assembly operates in reverse so that the sensor can thus take a position free from stress, during reverse operation without the corresponding tool being raised.

Ce déplacement peut aussi être un pivotement analogue, celui-ci étant commandé au cours du relevage de l'outil. Car comme le tuteur doit avoir une marge de liberté en hauteur pour pouvoir actionner le capteur et donc relever l'outil, il s'en suit qu'il descend en dessous du niveau de travail normal et reste donc dégagé mme lorsque l'outil est relevé.This movement can also be a similar pivoting, this being controlled during the lifting of the tool. Because as the guardian must have a margin of freedom in height in order to be able to actuate the sensor and therefore raise the tool, it follows that it drops below the normal working level and therefore remains clear even when the tool is noted.

Pour éviter cet inconvénient un relevage supplémentaire de )'enseble tâteur - capteur, par rapport à l'outil le met ainsi à l'abri de contraintes.To avoid this drawback, an additional lifting of the sensor / sensor assembly, relative to the tool, thus protects it from constraints.

Les figures suivartes et la description permettront de mieux apprécier l'intérêt et les caractéristiques de l'invention.The following figures and the description will allow a better appreciation of the interest and the characteristics of the invention.

La figure 1 représente un genre de réalisatlon au travail.Figure 1 shows a kind of work performance.

La figure 2 représente la même au cours du relevage de 1 'outil. Figure 2 shows the same during the lifting of one tool.

La figure 3 représente un autre genre au travail.Figure 3 shows another genre at work.

La figure 4 représente le me genre au cours d'un recul.Figure 4 shows the same gender during a setback.

Dans celles-ci h représente la hauteur de travail et p la profondeur de travail de l'outil.In these h represents the working height and p the working depth of the tool.

Un outil A supporte un ensemble (1) comprenant un tateur (2) axé en (8) et un capteur tel un potentiomètre (3) celui-ci est commandé par les leviers (4) et (6) et la biellette (5) et définit ainsi une valeur de référence à chaque profondeur b hauteur de travail - h - de l'outil A. A tool A supports an assembly (1) comprising a support (2) centered at (8) and a sensor such as a potentiometer (3) this is controlled by the levers (4) and (6) and the link (5) and thus defines a reference value at each depth b working height - h - of tool A.

A partir de cette valeur de référence définie par le capteur (3) un calculateur définit de façon connue l'action - soit relevage soit descente - sur le relevage supportant l'outil A de façon à maintenir sa profondeur ou hauteur de travail h à la valeur définie par la valeur de consigne.From this reference value defined by the sensor (3), a computer defines in a known manner the action - either lifting or lowering - on the lifting supporting the tool A so as to maintain its working depth or height h at the value defined by the setpoint.

Lorsqu'on relève l'outil - par exemple dans un virage - le tâteur (2) va redescendre librement puisqu'il possède une zone de travail s étendant de part et d'autre de la position de travail de l'outil et délimitée par les butées 7 et 7', limitant le débattement de tâteur (2) aux positions extrêmes 2 et 2 Dans cette position 2'l relativement très basse par rapport d l'outil, il risque autre endommagé
L invention propose de permettre un mouvement supplémentaire de remontée par rapport å l'outil - de l'ensemble tâteur capteur de façon à augmenter sa garde au sol, (par exemple par pivotement autour de l'axe (12) ) ce mouvement étant commandé par exemple par la biellette (11), au cours du relevage par l'attelage (9) - (10).When the tool is raised - for example in a turn - the feeler (2) will descend freely since it has a working area extending on either side of the working position of the tool and delimited by the stops 7 and 7 ', limiting the feeler movement (2) to the extreme positions 2 and 2 In this position 2'l relatively very low relative to the tool, there is a risk of other damage
The invention proposes to allow an additional movement of ascent relative to the tool - of the sensor feeler assembly so as to increase its ground clearance ((for example by pivoting around the axis (12)) this movement being controlled. for example by the link (11), during lifting by the hitch (9) - (10).

Un autre mode de protection proposé par l'invention est illustré dans les figures (3) et (4).Another mode of protection proposed by the invention is illustrated in Figures (3) and (4).

Il s'agit d'une protection pour éviter que le tâteur ne soit endommagé au cours d'une manoeuvre de recul en marche arrière lorsque l'outil n'est pas relevé. This is a protection to prevent the feeler from being damaged during a reverse reversing maneuver when the tool is not raised.

Comme dans les figures (1) et (2) le tâteur (2) axé en (8), pour régler la profondeur de travail p, agit sur le capteur 3 par les leviers (4) et (6) et la biellette (5) et les deux sont fixés sur un support (1) qui peut pivoter autour de l'axe (12) lié à l'outil B. Son mouvement étant limité par la butée (13) sous l'action du ressort de rappel (14).As in Figures (1) and (2) the feeler (2) centered at (8), to adjust the working depth p, acts on the sensor 3 by the levers (4) and (6) and the link (5 ) and both are fixed on a support (1) which can pivot around the axis (12) linked to the tool B. Its movement being limited by the stop (13) under the action of the return spring (14 ).

Le tâteur (2) étant en contact avec le sol, lorsque l'outil
B recule l'ensemble (1) peut pivoter autour de l'axe (12) et prendre la position de la figure (4) en évitant les contraintes su le tâteur (2) et le capteur (3).The feeler (2) being in contact with the ground, when the tool
B moves back the assembly (1) can pivot around the axis (12) and take the position of the figure (4) avoiding the constraints on the feeler (2) and the sensor (3).

Naturellement il est possible de combiner l'effet de remontée au cours du relevage de l'outil et le basculement au cours du recul de l'outil suV un m?me axe ou deux axes différents ou l'un par rotation et 1 autre par translation ou autres combinaisons de mouvements.Naturally, it is possible to combine the upward effect during the lifting of the tool and the tilting during the retraction of the tool on the same axis or two different axes or one by rotation and 1 other by translation or other combinations of movements.

Naturellement la description ci-dessu- n'est donnée qu'a titre explicatif non limitatif. Naturally, the description above is only given by way of nonlimiting explanation.

Claims (3)

REVENDICTIONS 10 - Système de régulation de hauteur comprenant au moins un élément tâteur (2) en contact avec le sol lié à un outil ( - - B) et commandant un capteur (3) définissant la position de l'outil par rapport au sol de façon å pouvoir en régler la position en hauteur ou en profondeur, caractérisé en ce que le ou les tuteurs (2) et le ou les capteurs sont disposés sur un bâti commun (1) lié de façon mobile d l'outil travaillant et pouvant se déplacer par rapport au sol et/ou à l'outil.10 - Height regulation system comprising at least one feeler element (2) in contact with the ground linked to a tool (- - B) and controlling a sensor (3) defining the position of the tool relative to the ground å be able to adjust the position in height or in depth, characterized in that the stake (s) (2) and the sensor (s) are arranged on a common frame (1) movably linked to the working tool and being able to move relative to the ground and / or the tool. 20 - Système de régulation de hauteur tel que défini en 1 caractérisé en ce que le déplacement est obtenu par rotation autour d'un axe (12).20 - Height regulation system as defined in 1 characterized in that the displacement is obtained by rotation about an axis (12). 3e - Système de régulation de hauteur tel que défini en 1 ou 2 caractérisé e ce que le déplacement de l'ensemble (1) capteur - capteur est commandé au cours du relevage de l'outil lié correspondant, de telle façon que l'ensemble tâteur - capteur ou au moins la partie tâteur se relève par rapport à l'outil le supportant. 3e - Height regulation system as defined in 1 or 2 characterized in that the movement of the assembly (1) sensor - sensor is controlled during the lifting of the corresponding linked tool, so that the assembly feeler - sensor or at least the feeler part is raised relative to the tool supporting it. 40 - Système de régulation de hauteur tel que défini en 1 ou 2 caractérisé en ce que l'ensemble tuteur - capteur peut se déplacer librement au cours d'une manoeuvre en sens inverse du sens de travail de façon å ce que l'ensemble tâteur capteur puisse basculer autour de son axe de pivotement (12) et se relever au cours d'une marche arrière. 40 - Height regulation system as defined in 1 or 2 characterized in that the guardian-sensor assembly can move freely during an operation in the opposite direction to the working direction so that the feeler assembly sensor can tilt around its pivot axis (12) and be raised during reverse gear.
FR8808052A 1988-06-14 1988-06-14 IMPROVED HEIGHT REGULATION SYSTEM Expired - Lifetime FR2632484B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8808052A FR2632484B1 (en) 1988-06-14 1988-06-14 IMPROVED HEIGHT REGULATION SYSTEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8808052A FR2632484B1 (en) 1988-06-14 1988-06-14 IMPROVED HEIGHT REGULATION SYSTEM

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FR2632484A1 true FR2632484A1 (en) 1989-12-15
FR2632484B1 FR2632484B1 (en) 1991-09-06

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5148873A (en) * 1991-03-04 1992-09-22 Gar-Bar Corporation Row follower
US5207739A (en) * 1992-05-04 1993-05-04 Orthman Manufacturing, Inc. Collapsible guide rod assembly for a tractor guidance system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1268718A (en) * 1960-09-02 1961-08-04 Porsche Diesel Motorenbau G M Device for automatic regulation of the depth of attack of tools worked on a tractor by articulated parallelograms comprising a probing device
DE2128728A1 (en) * 1971-06-09 1973-01-04 Schmotzer Maschf ARRANGEMENT OF A SENSOR SLIDING ON THE GROUND FOR THE INDEPENDENT DEPTH REGULATION OF WORK TOOLS ON WOOD HARVESTING AND TILLING MACHINERY
DE2701117A1 (en) * 1977-01-12 1978-07-13 Alfons Holmer Root crop harvester position control - has probe which follows ground contours and delivers signal to valve in hydraulic circuit of piston-cylinder unit
FR2423123A1 (en) * 1978-04-20 1979-11-16 Lely Nv C Van Der TRACTOR WITH LIFTING DEVICE
DE8705192U1 (de) * 1987-04-07 1987-06-11 Wilhelm Stoll Maschinenfabrik Gmbh, 38268 Lengede Rübenerntemaschine mit Steuerungsautomatik

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1268718A (en) * 1960-09-02 1961-08-04 Porsche Diesel Motorenbau G M Device for automatic regulation of the depth of attack of tools worked on a tractor by articulated parallelograms comprising a probing device
DE2128728A1 (en) * 1971-06-09 1973-01-04 Schmotzer Maschf ARRANGEMENT OF A SENSOR SLIDING ON THE GROUND FOR THE INDEPENDENT DEPTH REGULATION OF WORK TOOLS ON WOOD HARVESTING AND TILLING MACHINERY
DE2701117A1 (en) * 1977-01-12 1978-07-13 Alfons Holmer Root crop harvester position control - has probe which follows ground contours and delivers signal to valve in hydraulic circuit of piston-cylinder unit
FR2423123A1 (en) * 1978-04-20 1979-11-16 Lely Nv C Van Der TRACTOR WITH LIFTING DEVICE
DE8705192U1 (de) * 1987-04-07 1987-06-11 Wilhelm Stoll Maschinenfabrik Gmbh, 38268 Lengede Rübenerntemaschine mit Steuerungsautomatik

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5148873A (en) * 1991-03-04 1992-09-22 Gar-Bar Corporation Row follower
US5207739A (en) * 1992-05-04 1993-05-04 Orthman Manufacturing, Inc. Collapsible guide rod assembly for a tractor guidance system

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Publication number Publication date
FR2632484B1 (en) 1991-09-06

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